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Posted to commits@zookeeper.apache.org by an...@apache.org on 2018/07/17 08:38:41 UTC

[01/10] zookeeper git commit: ZOOKEEPER-3033: branch-3.4 - MAVEN MIGRATION - Step 1.2 - zk-recipes

Repository: zookeeper
Updated Branches:
  refs/heads/branch-3.4 c1efa954d -> e5b4b94de


http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/queue/src/c/tests/TestDriver.cc
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diff --git a/zookeeper-recipes/queue/src/c/tests/TestDriver.cc b/zookeeper-recipes/queue/src/c/tests/TestDriver.cc
new file mode 100644
index 0000000..2b818f4
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+++ b/zookeeper-recipes/queue/src/c/tests/TestDriver.cc
@@ -0,0 +1,114 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <string>
+#include <cppunit/TestRunner.h>
+#include <cppunit/CompilerOutputter.h>
+#include <cppunit/TestResult.h>
+#include <cppunit/TestResultCollector.h>
+#include <cppunit/TextTestProgressListener.h>
+#include <cppunit/BriefTestProgressListener.h>
+#include <cppunit/extensions/TestFactoryRegistry.h>
+#include <stdexcept>
+#include <cppunit/Exception.h>
+#include <cppunit/TestFailure.h>
+#include <cppunit/XmlOutputter.h>
+#include <fstream>
+
+#include "Util.h"
+
+using namespace std;
+
+CPPUNIT_NS_BEGIN
+
+class EclipseOutputter: public CompilerOutputter
+{
+public:
+  EclipseOutputter(TestResultCollector *result,ostream &stream):
+        CompilerOutputter(result,stream,"%p:%l: "),stream_(stream)
+    {
+    }
+    virtual void printFailedTestName( TestFailure *failure ){}
+    virtual void printFailureMessage( TestFailure *failure )
+    {
+      stream_<<": ";
+      Message msg = failure->thrownException()->message();
+      stream_<< msg.shortDescription();
+
+      string text;
+      for(int i=0; i<msg.detailCount();i++){
+          text+=msg.detailAt(i);
+          if(i+1!=msg.detailCount())
+              text+=", ";
+      }
+      if(text.length()!=0)
+          stream_ <<" ["<<text<<"]";
+      stream_<<"\n";
+    }
+    ostream& stream_;
+};
+
+CPPUNIT_NS_END
+
+int main( int argc, char* argv[] ) { 
+   // if command line contains "-ide" then this is the post build check
+   // => the output must be in the compiler error format.
+   //bool selfTest = (argc > 1) && (std::string("-ide") == argv[1]);
+   globalTestConfig.addConfigFromCmdLine(argc,argv);
+
+   // Create the event manager and test controller
+   CPPUNIT_NS::TestResult controller;
+   // Add a listener that colllects test result
+   CPPUNIT_NS::TestResultCollector result;
+   controller.addListener( &result );
+   
+   // Add a listener that print dots as tests run.
+   // CPPUNIT_NS::TextTestProgressListener progress;
+   CPPUNIT_NS::BriefTestProgressListener progress;
+   controller.addListener( &progress );
+ 
+   CPPUNIT_NS::TestRunner runner;
+   runner.addTest( CPPUNIT_NS::TestFactoryRegistry::getRegistry().makeTest() );
+ 
+   try
+   {
+     cout << "Running "  <<  globalTestConfig.getTestName();
+     runner.run( controller, globalTestConfig.getTestName());
+     cout<<endl;
+
+     // Print test in a compiler compatible format.
+     CPPUNIT_NS::EclipseOutputter outputter( &result,cout);
+     outputter.write(); 
+
+ // Uncomment this for XML output
+#ifdef ENABLE_XML_OUTPUT
+     std::ofstream file( "tests.xml" );
+     CPPUNIT_NS::XmlOutputter xml( &result, file );
+     xml.setStyleSheet( "report.xsl" );
+     xml.write();
+     file.close();
+#endif
+   }
+   catch ( std::invalid_argument &e )  // Test path not resolved
+   {
+     cout<<"\nERROR: "<<e.what()<<endl;
+     return 0;
+   }
+
+   return result.wasSuccessful() ? 0 : 1;
+ }

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/queue/src/c/tests/Util.cc
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diff --git a/zookeeper-recipes/queue/src/c/tests/Util.cc b/zookeeper-recipes/queue/src/c/tests/Util.cc
new file mode 100644
index 0000000..26a9a09
--- /dev/null
+++ b/zookeeper-recipes/queue/src/c/tests/Util.cc
@@ -0,0 +1,30 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "Util.h"
+
+const std::string EMPTY_STRING;
+
+TestConfig globalTestConfig;
+
+void millisleep(int ms){
+    timespec ts;
+    ts.tv_sec=ms/1000;
+    ts.tv_nsec=(ms%1000)*1000000; // to nanoseconds
+    nanosleep(&ts,0);
+}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/queue/src/c/tests/Util.h
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diff --git a/zookeeper-recipes/queue/src/c/tests/Util.h b/zookeeper-recipes/queue/src/c/tests/Util.h
new file mode 100644
index 0000000..95f5420
--- /dev/null
+++ b/zookeeper-recipes/queue/src/c/tests/Util.h
@@ -0,0 +1,134 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef UTIL_H_
+#define UTIL_H_
+
+#include <map>
+#include <vector>
+#include <string>
+
+// number of elements in array
+#define COUNTOF(array) sizeof(array)/sizeof(array[0])
+
+#define DECLARE_WRAPPER(ret,sym,sig) \
+    extern "C" ret __real_##sym sig; \
+    extern "C" ret __wrap_##sym sig
+
+#define CALL_REAL(sym,params) \
+    __real_##sym params
+
+// must include "src/zookeeper_log.h" to be able to use this macro
+#define TEST_TRACE(x) \
+    log_message(3,__LINE__,__func__,format_log_message x)
+
+extern const std::string EMPTY_STRING;
+
+// *****************************************************************************
+// A bit of wizardry to get to the bare type from a reference or a pointer 
+// to the type
+template <class T>
+struct TypeOp {
+    typedef T BareT;
+    typedef T ArgT;
+};
+
+// partial specialization for reference types
+template <class T>
+struct TypeOp<T&>{
+    typedef T& ArgT;
+    typedef typename TypeOp<T>::BareT BareT;
+};
+
+// partial specialization for pointers
+template <class T>
+struct TypeOp<T*>{
+    typedef T* ArgT;
+    typedef typename TypeOp<T>::BareT BareT;
+};
+
+// *****************************************************************************
+// Container utilities
+
+template <class K, class V>
+void putValue(std::map<K,V>& map,const K& k, const V& v){
+    typedef std::map<K,V> Map;
+    typename Map::const_iterator it=map.find(k);
+    if(it==map.end())
+        map.insert(typename Map::value_type(k,v));
+    else
+        map[k]=v;
+}
+
+template <class K, class V>
+bool getValue(const std::map<K,V>& map,const K& k,V& v){
+    typedef std::map<K,V> Map;
+    typename Map::const_iterator it=map.find(k);
+    if(it==map.end())
+        return false;
+    v=it->second;
+    return true;
+}
+
+// *****************************************************************************
+// misc utils
+
+// millisecond sleep
+void millisleep(int ms);
+// evaluate given predicate until it returns true or the timeout 
+// (in millis) has expired
+template<class Predicate>
+int ensureCondition(const Predicate& p,int timeout){
+    int elapsed=0;
+    while(!p() && elapsed<timeout){
+        millisleep(2);
+        elapsed+=2;
+    }
+    return elapsed;
+};
+
+// *****************************************************************************
+// test global configuration data 
+class TestConfig{
+    typedef std::vector<std::string> CmdLineOptList;
+public:
+    typedef CmdLineOptList::const_iterator const_iterator;
+    TestConfig(){}
+    ~TestConfig(){}
+    void addConfigFromCmdLine(int argc, char* argv[]){
+        if(argc>=2)
+            testName_=argv[1];
+        for(int i=2; i<argc;++i)
+            cmdOpts_.push_back(argv[i]);
+    }
+    const_iterator getExtraOptBegin() const {return cmdOpts_.begin();}
+    const_iterator getExtraOptEnd() const {return cmdOpts_.end();}
+    size_t getExtraOptCount() const {
+        return cmdOpts_.size();
+    }
+    const std::string& getTestName() const {
+        return testName_=="all"?EMPTY_STRING:testName_;
+    }
+private:
+    CmdLineOptList cmdOpts_;
+    std::string testName_;
+};
+
+extern TestConfig globalTestConfig;
+
+#endif /*UTIL_H_*/

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/queue/src/c/tests/zkServer.sh
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diff --git a/zookeeper-recipes/queue/src/c/tests/zkServer.sh b/zookeeper-recipes/queue/src/c/tests/zkServer.sh
new file mode 100755
index 0000000..a22fd30
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+++ b/zookeeper-recipes/queue/src/c/tests/zkServer.sh
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+#!/bin/bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+if [ "x$1" == "x" ]
+then
+	echo "USAGE: $0 startClean|start|stop hostPorts"
+	exit 2
+fi
+
+if [ "x$1" == "xstartClean" ]
+then
+	rm -rf /tmp/zkdata
+fi
+
+# Make sure nothing is left over from before
+if [ -r "/tmp/zk.pid" ]
+then
+pid=`cat /tmp/zk.pid`
+kill -9 $pid
+rm -f /tmp/zk.pid
+fi
+
+base_dir="../../../../.."
+
+CLASSPATH="$CLASSPATH:${base_dir}/build/classes"
+CLASSPATH="$CLASSPATH:${base_dir}/conf"
+
+for f in "${base_dir}"/zookeeper-*.jar
+do
+    CLASSPATH="$CLASSPATH:$f"
+done
+
+for i in "${base_dir}"/build/lib/*.jar
+do
+    CLASSPATH="$CLASSPATH:$i"
+done
+
+for i in "${base_dir}"/src/java/lib/*.jar
+do
+    CLASSPATH="$CLASSPATH:$i"
+done
+
+CLASSPATH="$CLASSPATH:${CLOVER_HOME}/lib/clover.jar"
+
+case $1 in
+start|startClean)
+	mkdir -p /tmp/zkdata
+	java -cp $CLASSPATH org.apache.zookeeper.server.ZooKeeperServerMain 22181 /tmp/zkdata &> /tmp/zk.log &
+        echo $! > /tmp/zk.pid
+        sleep 5
+	;;
+stop)
+	# Already killed above
+	;;
+*)
+	echo "Unknown command " + $1
+	exit 2
+esac
+

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/queue/src/java/org/apache/zookeeper/recipes/queue/DistributedQueue.java
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diff --git a/zookeeper-recipes/queue/src/java/org/apache/zookeeper/recipes/queue/DistributedQueue.java b/zookeeper-recipes/queue/src/java/org/apache/zookeeper/recipes/queue/DistributedQueue.java
new file mode 100644
index 0000000..c5d7c83
--- /dev/null
+++ b/zookeeper-recipes/queue/src/java/org/apache/zookeeper/recipes/queue/DistributedQueue.java
@@ -0,0 +1,313 @@
+/**
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.zookeeper.recipes.queue;
+
+import java.util.List;
+import java.util.NoSuchElementException;
+import java.util.TreeMap;
+import java.util.concurrent.CountDownLatch;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.apache.zookeeper.CreateMode;
+import org.apache.zookeeper.KeeperException;
+import org.apache.zookeeper.WatchedEvent;
+import org.apache.zookeeper.Watcher;
+import org.apache.zookeeper.ZooDefs;
+import org.apache.zookeeper.ZooKeeper;
+import org.apache.zookeeper.data.ACL;
+import org.apache.zookeeper.data.Stat;
+
+/**
+ * 
+ * A <a href="package.html">protocol to implement a distributed queue</a>.
+ * 
+ */
+
+public class DistributedQueue {
+    private static final Logger LOG = LoggerFactory.getLogger(DistributedQueue.class);
+
+    private final String dir;
+
+    private ZooKeeper zookeeper;
+    private List<ACL> acl = ZooDefs.Ids.OPEN_ACL_UNSAFE;
+
+    private final String prefix = "qn-";
+
+
+    public DistributedQueue(ZooKeeper zookeeper, String dir, List<ACL> acl){
+        this.dir = dir;
+
+        if(acl != null){
+            this.acl = acl;
+        }
+        this.zookeeper = zookeeper;
+
+    }
+
+
+
+    /**
+     * Returns a Map of the children, ordered by id.
+     * @param watcher optional watcher on getChildren() operation.
+     * @return map from id to child name for all children
+     */
+    private TreeMap<Long,String> orderedChildren(Watcher watcher) throws KeeperException, InterruptedException {
+        TreeMap<Long,String> orderedChildren = new TreeMap<Long,String>();
+
+        List<String> childNames = null;
+        try{
+            childNames = zookeeper.getChildren(dir, watcher);
+        }catch (KeeperException.NoNodeException e){
+            throw e;
+        }
+
+        for(String childName : childNames){
+            try{
+                //Check format
+                if(!childName.regionMatches(0, prefix, 0, prefix.length())){
+                    LOG.warn("Found child node with improper name: " + childName);
+                    continue;
+                }
+                String suffix = childName.substring(prefix.length());
+                Long childId = new Long(suffix);
+                orderedChildren.put(childId,childName);
+            }catch(NumberFormatException e){
+                LOG.warn("Found child node with improper format : " + childName + " " + e,e);
+            }
+        }
+
+        return orderedChildren;
+    }
+
+    /**
+     * Find the smallest child node.
+     * @return The name of the smallest child node.
+     */
+    private String smallestChildName() throws KeeperException, InterruptedException {
+        long minId = Long.MAX_VALUE;
+        String minName = "";
+
+        List<String> childNames = null;
+
+        try{
+            childNames = zookeeper.getChildren(dir, false);
+        }catch(KeeperException.NoNodeException e){
+            LOG.warn("Caught: " +e,e);
+            return null;
+        }
+
+        for(String childName : childNames){
+            try{
+                //Check format
+                if(!childName.regionMatches(0, prefix, 0, prefix.length())){
+                    LOG.warn("Found child node with improper name: " + childName);
+                    continue;
+                }
+                String suffix = childName.substring(prefix.length());
+                long childId = Long.parseLong(suffix);
+                if(childId < minId){
+                    minId = childId;
+                    minName = childName;
+                }
+            }catch(NumberFormatException e){
+                LOG.warn("Found child node with improper format : " + childName + " " + e,e);
+            }
+        }
+
+
+        if(minId < Long.MAX_VALUE){
+            return minName;
+        }else{
+            return null;
+        }
+    }
+
+    /**
+     * Return the head of the queue without modifying the queue.
+     * @return the data at the head of the queue.
+     * @throws NoSuchElementException
+     * @throws KeeperException
+     * @throws InterruptedException
+     */
+    public byte[] element() throws NoSuchElementException, KeeperException, InterruptedException {
+        TreeMap<Long,String> orderedChildren;
+
+        // element, take, and remove follow the same pattern.
+        // We want to return the child node with the smallest sequence number.
+        // Since other clients are remove()ing and take()ing nodes concurrently, 
+        // the child with the smallest sequence number in orderedChildren might be gone by the time we check.
+        // We don't call getChildren again until we have tried the rest of the nodes in sequence order.
+        while(true){
+            try{
+                orderedChildren = orderedChildren(null);
+            }catch(KeeperException.NoNodeException e){
+                throw new NoSuchElementException();
+            }
+            if(orderedChildren.size() == 0 ) throw new NoSuchElementException();
+
+            for(String headNode : orderedChildren.values()){
+                if(headNode != null){
+                    try{
+                        return zookeeper.getData(dir+"/"+headNode, false, null);
+                    }catch(KeeperException.NoNodeException e){
+                        //Another client removed the node first, try next
+                    }
+                }
+            }
+
+        }
+    }
+
+
+    /**
+     * Attempts to remove the head of the queue and return it.
+     * @return The former head of the queue
+     * @throws NoSuchElementException
+     * @throws KeeperException
+     * @throws InterruptedException
+     */
+    public byte[] remove() throws NoSuchElementException, KeeperException, InterruptedException {
+        TreeMap<Long,String> orderedChildren;
+        // Same as for element.  Should refactor this.
+        while(true){
+            try{
+                orderedChildren = orderedChildren(null);
+            }catch(KeeperException.NoNodeException e){
+                throw new NoSuchElementException();
+            }
+            if(orderedChildren.size() == 0) throw new NoSuchElementException();
+
+            for(String headNode : orderedChildren.values()){
+                String path = dir +"/"+headNode;
+                try{
+                    byte[] data = zookeeper.getData(path, false, null);
+                    zookeeper.delete(path, -1);
+                    return data;
+                }catch(KeeperException.NoNodeException e){
+                    // Another client deleted the node first.
+                }
+            }
+
+        }
+    }
+
+    private class LatchChildWatcher implements Watcher {
+
+        CountDownLatch latch;
+
+        public LatchChildWatcher(){
+            latch = new CountDownLatch(1);
+        }
+
+        public void process(WatchedEvent event){
+            LOG.debug("Watcher fired on path: " + event.getPath() + " state: " + 
+                    event.getState() + " type " + event.getType());
+            latch.countDown();
+        }
+        public void await() throws InterruptedException {
+            latch.await();
+        }
+    }
+
+    /**
+     * Removes the head of the queue and returns it, blocks until it succeeds.
+     * @return The former head of the queue
+     * @throws NoSuchElementException
+     * @throws KeeperException
+     * @throws InterruptedException
+     */
+    public byte[] take() throws KeeperException, InterruptedException {
+        TreeMap<Long,String> orderedChildren;
+        // Same as for element.  Should refactor this.
+        while(true){
+            LatchChildWatcher childWatcher = new LatchChildWatcher();
+            try{
+                orderedChildren = orderedChildren(childWatcher);
+            }catch(KeeperException.NoNodeException e){
+                zookeeper.create(dir, new byte[0], acl, CreateMode.PERSISTENT);
+                continue;
+            }
+            if(orderedChildren.size() == 0){
+                childWatcher.await();
+                continue;
+            }
+
+            for(String headNode : orderedChildren.values()){
+                String path = dir +"/"+headNode;
+                try{
+                    byte[] data = zookeeper.getData(path, false, null);
+                    zookeeper.delete(path, -1);
+                    return data;
+                }catch(KeeperException.NoNodeException e){
+                    // Another client deleted the node first.
+                }
+            }
+        }
+    }
+
+    /**
+     * Inserts data into queue.
+     * @param data
+     * @return true if data was successfully added
+     */
+    public boolean offer(byte[] data) throws KeeperException, InterruptedException{
+        for(;;){
+            try{
+                zookeeper.create(dir+"/"+prefix, data, acl, CreateMode.PERSISTENT_SEQUENTIAL);
+                return true;
+            }catch(KeeperException.NoNodeException e){
+                zookeeper.create(dir, new byte[0], acl, CreateMode.PERSISTENT);
+            }
+        }
+
+    }
+
+    /**
+     * Returns the data at the first element of the queue, or null if the queue is empty.
+     * @return data at the first element of the queue, or null.
+     * @throws KeeperException
+     * @throws InterruptedException
+     */
+    public byte[] peek() throws KeeperException, InterruptedException{
+        try{
+            return element();
+        }catch(NoSuchElementException e){
+            return null;
+        }
+    }
+
+
+    /**
+     * Attempts to remove the head of the queue and return it. Returns null if the queue is empty.
+     * @return Head of the queue or null.
+     * @throws KeeperException
+     * @throws InterruptedException
+     */
+    public byte[] poll() throws KeeperException, InterruptedException {
+        try{
+            return remove();
+        }catch(NoSuchElementException e){
+            return null;
+        }
+    }
+
+
+
+}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/queue/test/org/apache/zookeeper/recipes/queue/DistributedQueueTest.java
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/queue/test/org/apache/zookeeper/recipes/queue/DistributedQueueTest.java b/zookeeper-recipes/queue/test/org/apache/zookeeper/recipes/queue/DistributedQueueTest.java
new file mode 100644
index 0000000..c6cfae2
--- /dev/null
+++ b/zookeeper-recipes/queue/test/org/apache/zookeeper/recipes/queue/DistributedQueueTest.java
@@ -0,0 +1,286 @@
+/**
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.zookeeper.recipes.queue;
+
+import java.util.NoSuchElementException;
+
+import org.apache.zookeeper.KeeperException;
+import org.apache.zookeeper.ZooKeeper;
+import org.apache.zookeeper.test.ClientBase;
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Test;
+
+
+
+public class DistributedQueueTest extends ClientBase {
+
+    @After
+    public void tearDown() throws Exception {
+        super.tearDown();
+        LOG.info("FINISHED " + getTestName());
+    }
+
+
+    @Test
+    public void testOffer1() throws Exception {
+        String dir = "/testOffer1";
+        String testString = "Hello World";
+        final int num_clients = 1;
+        ZooKeeper clients[] = new ZooKeeper[num_clients];
+        DistributedQueue queueHandles[] = new DistributedQueue[num_clients];
+        for(int i=0; i < clients.length; i++){
+            clients[i] = createClient();
+            queueHandles[i] = new DistributedQueue(clients[i], dir, null);
+        }
+
+        queueHandles[0].offer(testString.getBytes());
+
+        byte dequeuedBytes[] = queueHandles[0].remove();
+        Assert.assertEquals(new String(dequeuedBytes), testString);
+    }
+
+    @Test
+    public void testOffer2() throws Exception {
+        String dir = "/testOffer2";
+        String testString = "Hello World";
+        final int num_clients = 2;
+        ZooKeeper clients[] = new ZooKeeper[num_clients];
+        DistributedQueue queueHandles[] = new DistributedQueue[num_clients];
+        for(int i=0; i < clients.length; i++){
+            clients[i] = createClient();
+            queueHandles[i] = new DistributedQueue(clients[i], dir, null);
+        }
+
+        queueHandles[0].offer(testString.getBytes());
+
+        byte dequeuedBytes[] = queueHandles[1].remove();
+        Assert.assertEquals(new String(dequeuedBytes), testString);
+    }
+
+    @Test
+    public void testTake1() throws Exception {
+        String dir = "/testTake1";
+        String testString = "Hello World";
+        final int num_clients = 1;
+        ZooKeeper clients[] = new ZooKeeper[num_clients];
+        DistributedQueue queueHandles[] = new DistributedQueue[num_clients];
+        for(int i=0; i < clients.length; i++){
+            clients[i] = createClient();
+            queueHandles[i] = new DistributedQueue(clients[i], dir, null);
+        }
+
+        queueHandles[0].offer(testString.getBytes());
+
+        byte dequeuedBytes[] = queueHandles[0].take();
+        Assert.assertEquals(new String(dequeuedBytes), testString);
+    }
+
+
+
+    @Test
+    public void testRemove1() throws Exception{
+        String dir = "/testRemove1";
+        String testString = "Hello World";
+        final int num_clients = 1;
+        ZooKeeper clients[] = new ZooKeeper[num_clients];
+        DistributedQueue queueHandles[] = new DistributedQueue[num_clients];
+        for(int i=0; i < clients.length; i++){
+            clients[i] = createClient();
+            queueHandles[i] = new DistributedQueue(clients[i], dir, null);
+        }
+
+        try{
+            queueHandles[0].remove();
+        }catch(NoSuchElementException e){
+            return;
+        }
+        Assert.assertTrue(false);
+    }
+
+    public void createNremoveMtest(String dir,int n,int m) throws Exception{
+        String testString = "Hello World";
+        final int num_clients = 2;
+        ZooKeeper clients[] = new ZooKeeper[num_clients];
+        DistributedQueue queueHandles[] = new DistributedQueue[num_clients];
+        for(int i=0; i < clients.length; i++){
+            clients[i] = createClient();
+            queueHandles[i] = new DistributedQueue(clients[i], dir, null);
+        }
+
+        for(int i=0; i< n; i++){
+            String offerString = testString + i;
+            queueHandles[0].offer(offerString.getBytes());
+        }
+
+        byte data[] = null;
+        for(int i=0; i<m; i++){
+            data=queueHandles[1].remove();
+        }
+        Assert.assertEquals(new String(data), testString+(m-1));
+    }
+
+    @Test
+    public void testRemove2() throws Exception{
+        createNremoveMtest("/testRemove2",10,2);
+    }
+    @Test
+    public void testRemove3() throws Exception{
+        createNremoveMtest("/testRemove3",1000,1000);
+    }
+
+    public void createNremoveMelementTest(String dir,int n,int m) throws Exception{
+        String testString = "Hello World";
+        final int num_clients = 2;
+        ZooKeeper clients[] = new ZooKeeper[num_clients];
+        DistributedQueue queueHandles[] = new DistributedQueue[num_clients];
+        for(int i=0; i < clients.length; i++){
+            clients[i] = createClient();
+            queueHandles[i] = new DistributedQueue(clients[i], dir, null);
+        }
+
+        for(int i=0; i< n; i++){
+            String offerString = testString + i;
+            queueHandles[0].offer(offerString.getBytes());
+        }
+
+        byte data[] = null;
+        for(int i=0; i<m; i++){
+            data=queueHandles[1].remove();
+        }
+        Assert.assertEquals(new String(queueHandles[1].element()), testString+m);
+    }
+
+    @Test
+    public void testElement1() throws Exception {
+        createNremoveMelementTest("/testElement1",1,0);
+    }
+
+    @Test
+    public void testElement2() throws Exception {
+        createNremoveMelementTest("/testElement2",10,2);
+    }
+
+    @Test
+    public void testElement3() throws Exception {
+        createNremoveMelementTest("/testElement3",1000,500);
+    }
+
+    @Test
+    public void testElement4() throws Exception {
+        createNremoveMelementTest("/testElement4",1000,1000-1);
+    }
+
+    @Test
+    public void testTakeWait1() throws Exception{
+        String dir = "/testTakeWait1";
+        final String testString = "Hello World";
+        final int num_clients = 1;
+        final ZooKeeper clients[] = new ZooKeeper[num_clients];
+        final DistributedQueue queueHandles[] = new DistributedQueue[num_clients];
+        for(int i=0; i < clients.length; i++){
+            clients[i] = createClient();
+            queueHandles[i] = new DistributedQueue(clients[i], dir, null);
+        }
+
+        final byte[] takeResult[] = new byte[1][];
+        Thread takeThread = new Thread(){
+            public void run(){
+                try{
+                    takeResult[0] = queueHandles[0].take();
+                }catch(KeeperException e){
+
+                }catch(InterruptedException e){
+
+                }
+            }
+        };
+        takeThread.start();
+
+        Thread.sleep(1000);
+        Thread offerThread= new Thread() {
+            public void run(){
+                try {
+                    queueHandles[0].offer(testString.getBytes());
+                } catch (KeeperException e) {
+
+                } catch (InterruptedException e) {
+
+                }
+            }
+        };
+        offerThread.start();
+        offerThread.join();
+
+        takeThread.join();
+
+        Assert.assertTrue(takeResult[0] != null);
+        Assert.assertEquals(new String(takeResult[0]), testString);
+    }
+
+    @Test
+    public void testTakeWait2() throws Exception{
+        String dir = "/testTakeWait2";
+        final String testString = "Hello World";
+        final int num_clients = 1;
+        final ZooKeeper clients[] = new ZooKeeper[num_clients];
+        final DistributedQueue queueHandles[] = new DistributedQueue[num_clients];
+        for(int i=0; i < clients.length; i++){
+            clients[i] = createClient();
+            queueHandles[i] = new DistributedQueue(clients[i], dir, null);
+        }
+        int num_attempts =2;
+        for(int i=0; i< num_attempts; i++){
+            final byte[] takeResult[] = new byte[1][];
+            final String threadTestString = testString + i;
+            Thread takeThread = new Thread(){
+                public void run(){
+                    try{
+                        takeResult[0] = queueHandles[0].take();
+                    }catch(KeeperException e){
+
+                    }catch(InterruptedException e){
+
+                    }
+                }
+            };
+            takeThread.start();
+
+            Thread.sleep(1000);
+            Thread offerThread= new Thread() {
+                public void run(){
+                    try {
+                        queueHandles[0].offer(threadTestString.getBytes());
+                    } catch (KeeperException e) {
+
+                    } catch (InterruptedException e) {
+
+                    }
+                }
+            };
+            offerThread.start();
+            offerThread.join();
+
+            takeThread.join();
+
+            Assert.assertTrue(takeResult[0] != null);
+            Assert.assertEquals(new String(takeResult[0]), threadTestString);
+        }
+    }
+}
+


[09/10] zookeeper git commit: ZOOKEEPER-3033: branch-3.4 - MAVEN MIGRATION - Step 1.2 - zk-recipes

Posted by an...@apache.org.
http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/src/c/README.txt
----------------------------------------------------------------------
diff --git a/src/recipes/lock/src/c/README.txt b/src/recipes/lock/src/c/README.txt
deleted file mode 100644
index 326bba8..0000000
--- a/src/recipes/lock/src/c/README.txt
+++ /dev/null
@@ -1,28 +0,0 @@
-                     Zookeeper C lock client library 
-
-
-INSTALLATION
-
-If you're building the client from a source checkout you need to
-follow the steps outlined below. If you're building from a release
-tar downloaded from Apache please skip to step 2.
-
-1) make sure that you compile the main zookeeper c client library.
- 
-2) change directory to src/recipes/lock/src/c 
-    and do a "autoreconf -if" to bootstrap
-   autoconf, automake and libtool. Please make sure you have autoconf
-   version 2.59 or greater installed.
-3) do a "./configure [OPTIONS]" to generate the makefile. See INSTALL
-   for general information about running configure.
-
-4) do a "make" or "make install" to build the libraries and install them. 
-   Alternatively, you can also build and run a unit test suite (and
-   you probably should).  Please make sure you have cppunit-1.10.x or
-   higher installed before you execute step 4.  Once ./configure has
-   finished, do a "make run-check". It will build the libraries, build
-   the tests and run them.
-5) to generate doxygen documentation do a "make doxygen-doc". All
-   documentations will be placed to a new subfolder named docs. By
-   default only HTML documentation is generated.  For information on
-   other document formats please use "./configure --help"

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/src/c/acinclude.m4
----------------------------------------------------------------------
diff --git a/src/recipes/lock/src/c/acinclude.m4 b/src/recipes/lock/src/c/acinclude.m4
deleted file mode 100644
index d0041d8..0000000
--- a/src/recipes/lock/src/c/acinclude.m4
+++ /dev/null
@@ -1,312 +0,0 @@
-# This file is part of Autoconf.                       -*- Autoconf -*-
-
-# Copyright (C) 2004 Oren Ben-Kiki
-# This file is distributed under the same terms as the Autoconf macro files.
-
-# Generate automatic documentation using Doxygen. Works in concert with the
-# aminclude.m4 file and a compatible doxygen configuration file. Defines the
-# following public macros:
-#
-# DX_???_FEATURE(ON|OFF) - control the default setting fo a Doxygen feature.
-# Supported features are 'DOXYGEN' itself, 'DOT' for generating graphics,
-# 'HTML' for plain HTML, 'CHM' for compressed HTML help (for MS users), 'CHI'
-# for generating a seperate .chi file by the .chm file, and 'MAN', 'RTF',
-# 'XML', 'PDF' and 'PS' for the appropriate output formats. The environment
-# variable DOXYGEN_PAPER_SIZE may be specified to override the default 'a4wide'
-# paper size.
-#
-# By default, HTML, PDF and PS documentation is generated as this seems to be
-# the most popular and portable combination. MAN pages created by Doxygen are
-# usually problematic, though by picking an appropriate subset and doing some
-# massaging they might be better than nothing. CHM and RTF are specific for MS
-# (note that you can't generate both HTML and CHM at the same time). The XML is
-# rather useless unless you apply specialized post-processing to it.
-#
-# The macro mainly controls the default state of the feature. The use can
-# override the default by specifying --enable or --disable. The macros ensure
-# that contradictory flags are not given (e.g., --enable-doxygen-html and
-# --enable-doxygen-chm, --enable-doxygen-anything with --disable-doxygen, etc.)
-# Finally, each feature will be automatically disabled (with a warning) if the
-# required programs are missing.
-#
-# Once all the feature defaults have been specified, call DX_INIT_DOXYGEN with
-# the following parameters: a one-word name for the project for use as a
-# filename base etc., an optional configuration file name (the default is
-# 'Doxyfile', the same as Doxygen's default), and an optional output directory
-# name (the default is 'doxygen-doc').
-
-## ----------##
-## Defaults. ##
-## ----------##
-
-DX_ENV=""
-AC_DEFUN([DX_FEATURE_doc],  ON)
-AC_DEFUN([DX_FEATURE_dot],  ON)
-AC_DEFUN([DX_FEATURE_man],  OFF)
-AC_DEFUN([DX_FEATURE_html], ON)
-AC_DEFUN([DX_FEATURE_chm],  OFF)
-AC_DEFUN([DX_FEATURE_chi],  OFF)
-AC_DEFUN([DX_FEATURE_rtf],  OFF)
-AC_DEFUN([DX_FEATURE_xml],  OFF)
-AC_DEFUN([DX_FEATURE_pdf],  ON)
-AC_DEFUN([DX_FEATURE_ps],   ON)
-
-## --------------- ##
-## Private macros. ##
-## --------------- ##
-
-# DX_ENV_APPEND(VARIABLE, VALUE)
-# ------------------------------
-# Append VARIABLE="VALUE" to DX_ENV for invoking doxygen.
-AC_DEFUN([DX_ENV_APPEND], [AC_SUBST([DX_ENV], ["$DX_ENV $1='$2'"])])
-
-# DX_DIRNAME_EXPR
-# ---------------
-# Expand into a shell expression prints the directory part of a path.
-AC_DEFUN([DX_DIRNAME_EXPR],
-         [[expr ".$1" : '\(\.\)[^/]*$' \| "x$1" : 'x\(.*\)/[^/]*$']])
-
-# DX_IF_FEATURE(FEATURE, IF-ON, IF-OFF)
-# -------------------------------------
-# Expands according to the M4 (static) status of the feature.
-AC_DEFUN([DX_IF_FEATURE], [ifelse(DX_FEATURE_$1, ON, [$2], [$3])])
-
-# DX_REQUIRE_PROG(VARIABLE, PROGRAM)
-# ----------------------------------
-# Require the specified program to be found for the DX_CURRENT_FEATURE to work.
-AC_DEFUN([DX_REQUIRE_PROG], [
-AC_PATH_TOOL([$1], [$2])
-if test "$DX_FLAG_$[DX_CURRENT_FEATURE$$1]" = 1; then
-    AC_MSG_WARN([$2 not found - will not DX_CURRENT_DESCRIPTION])
-    AC_SUBST([DX_FLAG_]DX_CURRENT_FEATURE, 0)
-fi
-])
-
-# DX_TEST_FEATURE(FEATURE)
-# ------------------------
-# Expand to a shell expression testing whether the feature is active.
-AC_DEFUN([DX_TEST_FEATURE], [test "$DX_FLAG_$1" = 1])
-
-# DX_CHECK_DEPEND(REQUIRED_FEATURE, REQUIRED_STATE)
-# -------------------------------------------------
-# Verify that a required features has the right state before trying to turn on
-# the DX_CURRENT_FEATURE.
-AC_DEFUN([DX_CHECK_DEPEND], [
-test "$DX_FLAG_$1" = "$2" \
-|| AC_MSG_ERROR([doxygen-DX_CURRENT_FEATURE ifelse([$2], 1,
-                            requires, contradicts) doxygen-DX_CURRENT_FEATURE])
-])
-
-# DX_CLEAR_DEPEND(FEATURE, REQUIRED_FEATURE, REQUIRED_STATE)
-# ----------------------------------------------------------
-# Turn off the DX_CURRENT_FEATURE if the required feature is off.
-AC_DEFUN([DX_CLEAR_DEPEND], [
-test "$DX_FLAG_$1" = "$2" || AC_SUBST([DX_FLAG_]DX_CURRENT_FEATURE, 0)
-])
-
-# DX_FEATURE_ARG(FEATURE, DESCRIPTION,
-#                CHECK_DEPEND, CLEAR_DEPEND,
-#                REQUIRE, DO-IF-ON, DO-IF-OFF)
-# --------------------------------------------
-# Parse the command-line option controlling a feature. CHECK_DEPEND is called
-# if the user explicitly turns the feature on (and invokes DX_CHECK_DEPEND),
-# otherwise CLEAR_DEPEND is called to turn off the default state if a required
-# feature is disabled (using DX_CLEAR_DEPEND). REQUIRE performs additional
-# requirement tests (DX_REQUIRE_PROG). Finally, an automake flag is set and
-# DO-IF-ON or DO-IF-OFF are called according to the final state of the feature.
-AC_DEFUN([DX_ARG_ABLE], [
-    AC_DEFUN([DX_CURRENT_FEATURE], [$1])
-    AC_DEFUN([DX_CURRENT_DESCRIPTION], [$2])
-    AC_ARG_ENABLE(doxygen-$1,
-                  [AS_HELP_STRING(DX_IF_FEATURE([$1], [--disable-doxygen-$1],
-                                                      [--enable-doxygen-$1]),
-                                  DX_IF_FEATURE([$1], [don't $2], [$2]))],
-                  [
-case "$enableval" in
-#(
-y|Y|yes|Yes|YES)
-    AC_SUBST([DX_FLAG_$1], 1)
-    $3
-;; #(
-n|N|no|No|NO)
-    AC_SUBST([DX_FLAG_$1], 0)
-;; #(
-*)
-    AC_MSG_ERROR([invalid value '$enableval' given to doxygen-$1])
-;;
-esac
-], [
-AC_SUBST([DX_FLAG_$1], [DX_IF_FEATURE([$1], 1, 0)])
-$4
-])
-if DX_TEST_FEATURE([$1]); then
-    $5
-    :
-fi
-if DX_TEST_FEATURE([$1]); then
-    AM_CONDITIONAL(DX_COND_$1, :)
-    $6
-    :
-else
-    AM_CONDITIONAL(DX_COND_$1, false)
-    $7
-    :
-fi
-])
-
-## -------------- ##
-## Public macros. ##
-## -------------- ##
-
-# DX_XXX_FEATURE(DEFAULT_STATE)
-# -----------------------------
-AC_DEFUN([DX_DOXYGEN_FEATURE], [AC_DEFUN([DX_FEATURE_doc],  [$1])])
-AC_DEFUN([DX_MAN_FEATURE],     [AC_DEFUN([DX_FEATURE_man],  [$1])])
-AC_DEFUN([DX_HTML_FEATURE],    [AC_DEFUN([DX_FEATURE_html], [$1])])
-AC_DEFUN([DX_CHM_FEATURE],     [AC_DEFUN([DX_FEATURE_chm],  [$1])])
-AC_DEFUN([DX_CHI_FEATURE],     [AC_DEFUN([DX_FEATURE_chi],  [$1])])
-AC_DEFUN([DX_RTF_FEATURE],     [AC_DEFUN([DX_FEATURE_rtf],  [$1])])
-AC_DEFUN([DX_XML_FEATURE],     [AC_DEFUN([DX_FEATURE_xml],  [$1])])
-AC_DEFUN([DX_XML_FEATURE],     [AC_DEFUN([DX_FEATURE_xml],  [$1])])
-AC_DEFUN([DX_PDF_FEATURE],     [AC_DEFUN([DX_FEATURE_pdf],  [$1])])
-AC_DEFUN([DX_PS_FEATURE],      [AC_DEFUN([DX_FEATURE_ps],   [$1])])
-
-# DX_INIT_DOXYGEN(PROJECT, [CONFIG-FILE], [OUTPUT-DOC-DIR])
-# ---------------------------------------------------------
-# PROJECT also serves as the base name for the documentation files.
-# The default CONFIG-FILE is "Doxyfile" and OUTPUT-DOC-DIR is "doxygen-doc".
-AC_DEFUN([DX_INIT_DOXYGEN], [
-
-# Files:
-AC_SUBST([DX_PROJECT], [$1])
-AC_SUBST([DX_CONFIG], [ifelse([$2], [], Doxyfile, [$2])])
-AC_SUBST([DX_DOCDIR], [ifelse([$3], [], doxygen-doc, [$3])])
-
-# Environment variables used inside doxygen.cfg:
-DX_ENV_APPEND(SRCDIR, $srcdir)
-DX_ENV_APPEND(PROJECT, $DX_PROJECT)
-DX_ENV_APPEND(DOCDIR, $DX_DOCDIR)
-DX_ENV_APPEND(VERSION, $PACKAGE_VERSION)
-
-# Doxygen itself:
-DX_ARG_ABLE(doc, [generate any doxygen documentation],
-            [],
-            [],
-            [DX_REQUIRE_PROG([DX_DOXYGEN], doxygen)
-             DX_REQUIRE_PROG([DX_PERL], perl)],
-            [DX_ENV_APPEND(PERL_PATH, $DX_PERL)])
-
-# Dot for graphics:
-DX_ARG_ABLE(dot, [generate graphics for doxygen documentation],
-            [DX_CHECK_DEPEND(doc, 1)],
-            [DX_CLEAR_DEPEND(doc, 1)],
-            [DX_REQUIRE_PROG([DX_DOT], dot)],
-            [DX_ENV_APPEND(HAVE_DOT, YES)
-             DX_ENV_APPEND(DOT_PATH, [`DX_DIRNAME_EXPR($DX_DOT)`])],
-            [DX_ENV_APPEND(HAVE_DOT, NO)])
-
-# Man pages generation:
-DX_ARG_ABLE(man, [generate doxygen manual pages],
-            [DX_CHECK_DEPEND(doc, 1)],
-            [DX_CLEAR_DEPEND(doc, 1)],
-            [],
-            [DX_ENV_APPEND(GENERATE_MAN, YES)],
-            [DX_ENV_APPEND(GENERATE_MAN, NO)])
-
-# RTF file generation:
-DX_ARG_ABLE(rtf, [generate doxygen RTF documentation],
-            [DX_CHECK_DEPEND(doc, 1)],
-            [DX_CLEAR_DEPEND(doc, 1)],
-            [],
-            [DX_ENV_APPEND(GENERATE_RTF, YES)],
-            [DX_ENV_APPEND(GENERATE_RTF, NO)])
-
-# XML file generation:
-DX_ARG_ABLE(xml, [generate doxygen XML documentation],
-            [DX_CHECK_DEPEND(doc, 1)],
-            [DX_CLEAR_DEPEND(doc, 1)],
-            [],
-            [DX_ENV_APPEND(GENERATE_XML, YES)],
-            [DX_ENV_APPEND(GENERATE_XML, NO)])
-
-# (Compressed) HTML help generation:
-DX_ARG_ABLE(chm, [generate doxygen compressed HTML help documentation],
-            [DX_CHECK_DEPEND(doc, 1)],
-            [DX_CLEAR_DEPEND(doc, 1)],
-            [DX_REQUIRE_PROG([DX_HHC], hhc)],
-            [DX_ENV_APPEND(HHC_PATH, $DX_HHC)
-             DX_ENV_APPEND(GENERATE_HTML, YES)
-             DX_ENV_APPEND(GENERATE_HTMLHELP, YES)],
-            [DX_ENV_APPEND(GENERATE_HTMLHELP, NO)])
-
-# Seperate CHI file generation.
-DX_ARG_ABLE(chi, [generate doxygen seperate compressed HTML help index file],
-            [DX_CHECK_DEPEND(chm, 1)],
-            [DX_CLEAR_DEPEND(chm, 1)],
-            [],
-            [DX_ENV_APPEND(GENERATE_CHI, YES)],
-            [DX_ENV_APPEND(GENERATE_CHI, NO)])
-
-# Plain HTML pages generation:
-DX_ARG_ABLE(html, [generate doxygen plain HTML documentation],
-            [DX_CHECK_DEPEND(doc, 1) DX_CHECK_DEPEND(chm, 0)],
-            [DX_CLEAR_DEPEND(doc, 1) DX_CLEAR_DEPEND(chm, 0)],
-            [],
-            [DX_ENV_APPEND(GENERATE_HTML, YES)],
-            [DX_TEST_FEATURE(chm) || DX_ENV_APPEND(GENERATE_HTML, NO)])
-
-# PostScript file generation:
-DX_ARG_ABLE(ps, [generate doxygen PostScript documentation],
-            [DX_CHECK_DEPEND(doc, 1)],
-            [DX_CLEAR_DEPEND(doc, 1)],
-            [DX_REQUIRE_PROG([DX_LATEX], latex)
-             DX_REQUIRE_PROG([DX_MAKEINDEX], makeindex)
-             DX_REQUIRE_PROG([DX_DVIPS], dvips)
-             DX_REQUIRE_PROG([DX_EGREP], egrep)])
-
-# PDF file generation:
-DX_ARG_ABLE(pdf, [generate doxygen PDF documentation],
-            [DX_CHECK_DEPEND(doc, 1)],
-            [DX_CLEAR_DEPEND(doc, 1)],
-            [DX_REQUIRE_PROG([DX_PDFLATEX], pdflatex)
-             DX_REQUIRE_PROG([DX_MAKEINDEX], makeindex)
-             DX_REQUIRE_PROG([DX_EGREP], egrep)])
-
-# LaTeX generation for PS and/or PDF:
-if DX_TEST_FEATURE(ps) || DX_TEST_FEATURE(pdf); then
-    AM_CONDITIONAL(DX_COND_latex, :)
-    DX_ENV_APPEND(GENERATE_LATEX, YES)
-else
-    AM_CONDITIONAL(DX_COND_latex, false)
-    DX_ENV_APPEND(GENERATE_LATEX, NO)
-fi
-
-# Paper size for PS and/or PDF:
-AC_ARG_VAR(DOXYGEN_PAPER_SIZE,
-           [a4wide (default), a4, letter, legal or executive])
-case "$DOXYGEN_PAPER_SIZE" in
-#(
-"")
-    AC_SUBST(DOXYGEN_PAPER_SIZE, "")
-;; #(
-a4wide|a4|letter|legal|executive)
-    DX_ENV_APPEND(PAPER_SIZE, $DOXYGEN_PAPER_SIZE)
-;; #(
-*)
-    AC_MSG_ERROR([unknown DOXYGEN_PAPER_SIZE='$DOXYGEN_PAPER_SIZE'])
-;;
-esac
-
-#For debugging:
-#echo DX_FLAG_doc=$DX_FLAG_doc
-#echo DX_FLAG_dot=$DX_FLAG_dot
-#echo DX_FLAG_man=$DX_FLAG_man
-#echo DX_FLAG_html=$DX_FLAG_html
-#echo DX_FLAG_chm=$DX_FLAG_chm
-#echo DX_FLAG_chi=$DX_FLAG_chi
-#echo DX_FLAG_rtf=$DX_FLAG_rtf
-#echo DX_FLAG_xml=$DX_FLAG_xml
-#echo DX_FLAG_pdf=$DX_FLAG_pdf
-#echo DX_FLAG_ps=$DX_FLAG_ps
-#echo DX_ENV=$DX_ENV
-])

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/src/c/aminclude.am
----------------------------------------------------------------------
diff --git a/src/recipes/lock/src/c/aminclude.am b/src/recipes/lock/src/c/aminclude.am
deleted file mode 100644
index 420049e..0000000
--- a/src/recipes/lock/src/c/aminclude.am
+++ /dev/null
@@ -1,186 +0,0 @@
-# Copyright (C) 2004 Oren Ben-Kiki
-# This file is distributed under the same terms as the Automake macro files.
-
-# Generate automatic documentation using Doxygen. Goals and variables values
-# are controlled by the various DX_COND_??? conditionals set by autoconf.
-#
-# The provided goals are:
-# doxygen-doc: Generate all doxygen documentation.
-# doxygen-run: Run doxygen, which will generate some of the documentation
-#              (HTML, CHM, CHI, MAN, RTF, XML) but will not do the post
-#              processing required for the rest of it (PS, PDF, and some MAN).
-# doxygen-man: Rename some doxygen generated man pages.
-# doxygen-ps: Generate doxygen PostScript documentation.
-# doxygen-pdf: Generate doxygen PDF documentation.
-#
-# Note that by default these are not integrated into the automake goals. If
-# doxygen is used to generate man pages, you can achieve this integration by
-# setting man3_MANS to the list of man pages generated and then adding the
-# dependency:
-#
-#   $(man3_MANS): doxygen-doc
-#
-# This will cause make to run doxygen and generate all the documentation.
-#
-# The following variable is intended for use in Makefile.am:
-#
-# DX_CLEANFILES = everything to clean.
-#
-# This is usually added to MOSTLYCLEANFILES.
-
-## --------------------------------- ##
-## Format-independent Doxygen rules. ##
-## --------------------------------- ##
-
-if DX_COND_doc
-
-## ------------------------------- ##
-## Rules specific for HTML output. ##
-## ------------------------------- ##
-
-if DX_COND_html
-
-DX_CLEAN_HTML = @DX_DOCDIR@/html
-
-endif DX_COND_html
-
-## ------------------------------ ##
-## Rules specific for CHM output. ##
-## ------------------------------ ##
-
-if DX_COND_chm
-
-DX_CLEAN_CHM = @DX_DOCDIR@/chm
-
-if DX_COND_chi
-
-DX_CLEAN_CHI = @DX_DOCDIR@/@PACKAGE@.chi
-
-endif DX_COND_chi
-
-endif DX_COND_chm
-
-## ------------------------------ ##
-## Rules specific for MAN output. ##
-## ------------------------------ ##
-
-if DX_COND_man
-
-DX_CLEAN_MAN = @DX_DOCDIR@/man
-
-endif DX_COND_man
-
-## ------------------------------ ##
-## Rules specific for RTF output. ##
-## ------------------------------ ##
-
-if DX_COND_rtf
-
-DX_CLEAN_RTF = @DX_DOCDIR@/rtf
-
-endif DX_COND_rtf
-
-## ------------------------------ ##
-## Rules specific for XML output. ##
-## ------------------------------ ##
-
-if DX_COND_xml
-
-DX_CLEAN_XML = @DX_DOCDIR@/xml
-
-endif DX_COND_xml
-
-## ----------------------------- ##
-## Rules specific for PS output. ##
-## ----------------------------- ##
-
-if DX_COND_ps
-
-DX_CLEAN_PS = @DX_DOCDIR@/@PACKAGE@.ps
-
-DX_PS_GOAL = doxygen-ps
-
-doxygen-ps: @DX_DOCDIR@/@PACKAGE@.ps
-
-@DX_DOCDIR@/@PACKAGE@.ps: @DX_DOCDIR@/@PACKAGE@.tag
-	cd @DX_DOCDIR@/latex; \
-	rm -f *.aux *.toc *.idx *.ind *.ilg *.log *.out; \
-	$(DX_LATEX) refman.tex; \
-	$(MAKEINDEX_PATH) refman.idx; \
-	$(DX_LATEX) refman.tex; \
-	countdown=5; \
-	while $(DX_EGREP) 'Rerun (LaTeX|to get cross-references right)' \
-	                  refman.log > /dev/null 2>&1 \
-	   && test $$countdown -gt 0; do \
-	    $(DX_LATEX) refman.tex; \
-	    countdown=`expr $$countdown - 1`; \
-	done; \
-	$(DX_DVIPS) -o ../@PACKAGE@.ps refman.dvi
-
-endif DX_COND_ps
-
-## ------------------------------ ##
-## Rules specific for PDF output. ##
-## ------------------------------ ##
-
-if DX_COND_pdf
-
-DX_CLEAN_PDF = @DX_DOCDIR@/@PACKAGE@.pdf
-
-DX_PDF_GOAL = doxygen-pdf
-
-doxygen-pdf: @DX_DOCDIR@/@PACKAGE@.pdf
-
-@DX_DOCDIR@/@PACKAGE@.pdf: @DX_DOCDIR@/@PACKAGE@.tag
-	cd @DX_DOCDIR@/latex; \
-	rm -f *.aux *.toc *.idx *.ind *.ilg *.log *.out; \
-	$(DX_PDFLATEX) refman.tex; \
-	$(DX_MAKEINDEX) refman.idx; \
-	$(DX_PDFLATEX) refman.tex; \
-	countdown=5; \
-	while $(DX_EGREP) 'Rerun (LaTeX|to get cross-references right)' \
-	                  refman.log > /dev/null 2>&1 \
-	   && test $$countdown -gt 0; do \
-	    $(DX_PDFLATEX) refman.tex; \
-	    countdown=`expr $$countdown - 1`; \
-	done; \
-	mv refman.pdf ../@PACKAGE@.pdf
-
-endif DX_COND_pdf
-
-## ------------------------------------------------- ##
-## Rules specific for LaTeX (shared for PS and PDF). ##
-## ------------------------------------------------- ##
-
-if DX_COND_latex
-
-DX_CLEAN_LATEX = @DX_DOCDIR@/latex
-
-endif DX_COND_latex
-
-.PHONY: doxygen-run doxygen-doc $(DX_PS_GOAL) $(DX_PDF_GOAL)
-
-.INTERMEDIATE: doxygen-run $(DX_PS_GOAL) $(DX_PDF_GOAL)
-
-doxygen-run: @DX_DOCDIR@/@PACKAGE@.tag
-
-doxygen-doc: doxygen-run $(DX_PS_GOAL) $(DX_PDF_GOAL)
-
-@DX_DOCDIR@/@PACKAGE@.tag: $(DX_CONFIG) $(pkginclude_HEADERS)
-	rm -rf @DX_DOCDIR@
-	$(DX_ENV) $(DX_DOXYGEN) $(srcdir)/$(DX_CONFIG)
-
-DX_CLEANFILES = \
-    @DX_DOCDIR@/@PACKAGE@.tag \
-    -r \
-    $(DX_CLEAN_HTML) \
-    $(DX_CLEAN_CHM) \
-    $(DX_CLEAN_CHI) \
-    $(DX_CLEAN_MAN) \
-    $(DX_CLEAN_RTF) \
-    $(DX_CLEAN_XML) \
-    $(DX_CLEAN_PS) \
-    $(DX_CLEAN_PDF) \
-    $(DX_CLEAN_LATEX)
-
-endif DX_COND_doc

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/src/c/c-doc.Doxyfile
----------------------------------------------------------------------
diff --git a/src/recipes/lock/src/c/c-doc.Doxyfile b/src/recipes/lock/src/c/c-doc.Doxyfile
deleted file mode 100644
index c56e86d..0000000
--- a/src/recipes/lock/src/c/c-doc.Doxyfile
+++ /dev/null
@@ -1,1252 +0,0 @@
-# Doxyfile 1.4.7
-
-# This file describes the settings to be used by the documentation system
-# doxygen (www.doxygen.org) for a project
-#
-# All text after a hash (#) is considered a comment and will be ignored
-# The format is:
-#       TAG = value [value, ...]
-# For lists items can also be appended using:
-#       TAG += value [value, ...]
-# Values that contain spaces should be placed between quotes (" ")
-
-#---------------------------------------------------------------------------
-# Project related configuration options
-#---------------------------------------------------------------------------
-
-# The PROJECT_NAME tag is a single word (or a sequence of words surrounded 
-# by quotes) that should identify the project.
-
-PROJECT_NAME = $(PROJECT)-$(VERSION)
-
-# The PROJECT_NUMBER tag can be used to enter a project or revision number. 
-# This could be handy for archiving the generated documentation or 
-# if some version control system is used.
-
-PROJECT_NUMBER = 
-
-# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) 
-# base path where the generated documentation will be put. 
-# If a relative path is entered, it will be relative to the location 
-# where doxygen was started. If left blank the current directory will be used.
-
-OUTPUT_DIRECTORY = $(DOCDIR)
-
-# If the CREATE_SUBDIRS tag is set to YES, then doxygen will create 
-# 4096 sub-directories (in 2 levels) under the output directory of each output 
-# format and will distribute the generated files over these directories. 
-# Enabling this option can be useful when feeding doxygen a huge amount of 
-# source files, where putting all generated files in the same directory would 
-# otherwise cause performance problems for the file system.
-
-CREATE_SUBDIRS = NO
-
-# The OUTPUT_LANGUAGE tag is used to specify the language in which all 
-# documentation generated by doxygen is written. Doxygen will use this 
-# information to generate all constant output in the proper language. 
-# The default language is English, other supported languages are: 
-# Brazilian, Catalan, Chinese, Chinese-Traditional, Croatian, Czech, Danish, 
-# Dutch, Finnish, French, German, Greek, Hungarian, Italian, Japanese, 
-# Japanese-en (Japanese with English messages), Korean, Korean-en, Norwegian, 
-# Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Slovene, Spanish, 
-# Swedish, and Ukrainian.
-
-OUTPUT_LANGUAGE = English
-
-# This tag can be used to specify the encoding used in the generated output. 
-# The encoding is not always determined by the language that is chosen, 
-# but also whether or not the output is meant for Windows or non-Windows users. 
-# In case there is a difference, setting the USE_WINDOWS_ENCODING tag to YES 
-# forces the Windows encoding (this is the default for the Windows binary), 
-# whereas setting the tag to NO uses a Unix-style encoding (the default for 
-# all platforms other than Windows).
-
-USE_WINDOWS_ENCODING = NO
-
-# If the BRIEF_MEMBER_DESC tag is set to YES (the default) Doxygen will 
-# include brief member descriptions after the members that are listed in 
-# the file and class documentation (similar to JavaDoc). 
-# Set to NO to disable this.
-
-BRIEF_MEMBER_DESC = YES
-
-# If the REPEAT_BRIEF tag is set to YES (the default) Doxygen will prepend 
-# the brief description of a member or function before the detailed description. 
-# Note: if both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the 
-# brief descriptions will be completely suppressed.
-
-REPEAT_BRIEF = YES
-
-# This tag implements a quasi-intelligent brief description abbreviator 
-# that is used to form the text in various listings. Each string 
-# in this list, if found as the leading text of the brief description, will be 
-# stripped from the text and the result after processing the whole list, is 
-# used as the annotated text. Otherwise, the brief description is used as-is. 
-# If left blank, the following values are used ("$name" is automatically 
-# replaced with the name of the entity): "The $name class" "The $name widget" 
-# "The $name file" "is" "provides" "specifies" "contains" 
-# "represents" "a" "an" "the"
-
-ABBREVIATE_BRIEF = 
-
-# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then 
-# Doxygen will generate a detailed section even if there is only a brief 
-# description.
-
-ALWAYS_DETAILED_SEC = NO
-
-# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all 
-# inherited members of a class in the documentation of that class as if those 
-# members were ordinary class members. Constructors, destructors and assignment 
-# operators of the base classes will not be shown.
-
-INLINE_INHERITED_MEMB = NO
-
-# If the FULL_PATH_NAMES tag is set to YES then Doxygen will prepend the full 
-# path before files name in the file list and in the header files. If set 
-# to NO the shortest path that makes the file name unique will be used.
-
-FULL_PATH_NAMES = YES
-
-# If the FULL_PATH_NAMES tag is set to YES then the STRIP_FROM_PATH tag 
-# can be used to strip a user-defined part of the path. Stripping is 
-# only done if one of the specified strings matches the left-hand part of 
-# the path. The tag can be used to show relative paths in the file list. 
-# If left blank the directory from which doxygen is run is used as the 
-# path to strip.
-
-STRIP_FROM_PATH = 
-
-# The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of 
-# the path mentioned in the documentation of a class, which tells 
-# the reader which header file to include in order to use a class. 
-# If left blank only the name of the header file containing the class 
-# definition is used. Otherwise one should specify the include paths that 
-# are normally passed to the compiler using the -I flag.
-
-STRIP_FROM_INC_PATH = 
-
-# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter 
-# (but less readable) file names. This can be useful is your file systems 
-# doesn't support long names like on DOS, Mac, or CD-ROM.
-
-SHORT_NAMES = NO
-
-# If the JAVADOC_AUTOBRIEF tag is set to YES then Doxygen 
-# will interpret the first line (until the first dot) of a JavaDoc-style 
-# comment as the brief description. If set to NO, the JavaDoc 
-# comments will behave just like the Qt-style comments (thus requiring an 
-# explicit @brief command for a brief description.
-
-JAVADOC_AUTOBRIEF = NO
-
-# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make Doxygen 
-# treat a multi-line C++ special comment block (i.e. a block of //! or /// 
-# comments) as a brief description. This used to be the default behaviour. 
-# The new default is to treat a multi-line C++ comment block as a detailed 
-# description. Set this tag to YES if you prefer the old behaviour instead.
-
-MULTILINE_CPP_IS_BRIEF = NO
-
-# If the DETAILS_AT_TOP tag is set to YES then Doxygen 
-# will output the detailed description near the top, like JavaDoc.
-# If set to NO, the detailed description appears after the member 
-# documentation.
-
-DETAILS_AT_TOP = NO
-
-# If the INHERIT_DOCS tag is set to YES (the default) then an undocumented 
-# member inherits the documentation from any documented member that it 
-# re-implements.
-
-INHERIT_DOCS = YES
-
-# If the SEPARATE_MEMBER_PAGES tag is set to YES, then doxygen will produce 
-# a new page for each member. If set to NO, the documentation of a member will 
-# be part of the file/class/namespace that contains it.
-
-SEPARATE_MEMBER_PAGES = NO
-
-# The TAB_SIZE tag can be used to set the number of spaces in a tab. 
-# Doxygen uses this value to replace tabs by spaces in code fragments.
-
-TAB_SIZE = 8
-
-# This tag can be used to specify a number of aliases that acts 
-# as commands in the documentation. An alias has the form "name=value". 
-# For example adding "sideeffect=\par Side Effects:\n" will allow you to 
-# put the command \sideeffect (or @sideeffect) in the documentation, which 
-# will result in a user-defined paragraph with heading "Side Effects:". 
-# You can put \n's in the value part of an alias to insert newlines.
-
-ALIASES = 
-
-# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C 
-# sources only. Doxygen will then generate output that is more tailored for C. 
-# For instance, some of the names that are used will be different. The list 
-# of all members will be omitted, etc.
-
-OPTIMIZE_OUTPUT_FOR_C = YES
-
-# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java 
-# sources only. Doxygen will then generate output that is more tailored for Java. 
-# For instance, namespaces will be presented as packages, qualified scopes 
-# will look different, etc.
-
-OPTIMIZE_OUTPUT_JAVA = NO
-
-# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want to 
-# include (a tag file for) the STL sources as input, then you should 
-# set this tag to YES in order to let doxygen match functions declarations and 
-# definitions whose arguments contain STL classes (e.g. func(std::string); v.s. 
-# func(std::string) {}). This also make the inheritance and collaboration 
-# diagrams that involve STL classes more complete and accurate.
-
-BUILTIN_STL_SUPPORT = NO
-
-# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC 
-# tag is set to YES, then doxygen will reuse the documentation of the first 
-# member in the group (if any) for the other members of the group. By default 
-# all members of a group must be documented explicitly.
-
-DISTRIBUTE_GROUP_DOC = NO
-
-# Set the SUBGROUPING tag to YES (the default) to allow class member groups of 
-# the same type (for instance a group of public functions) to be put as a 
-# subgroup of that type (e.g. under the Public Functions section). Set it to 
-# NO to prevent subgrouping. Alternatively, this can be done per class using 
-# the \nosubgrouping command.
-
-SUBGROUPING = YES
-
-#---------------------------------------------------------------------------
-# Build related configuration options
-#---------------------------------------------------------------------------
-
-# If the EXTRACT_ALL tag is set to YES doxygen will assume all entities in 
-# documentation are documented, even if no documentation was available. 
-# Private class members and static file members will be hidden unless 
-# the EXTRACT_PRIVATE and EXTRACT_STATIC tags are set to YES
-
-EXTRACT_ALL = NO
-
-# If the EXTRACT_PRIVATE tag is set to YES all private members of a class 
-# will be included in the documentation.
-
-EXTRACT_PRIVATE = NO
-
-# If the EXTRACT_STATIC tag is set to YES all static members of a file 
-# will be included in the documentation.
-
-EXTRACT_STATIC = YES
-
-# If the EXTRACT_LOCAL_CLASSES tag is set to YES classes (and structs) 
-# defined locally in source files will be included in the documentation. 
-# If set to NO only classes defined in header files are included.
-
-EXTRACT_LOCAL_CLASSES = YES
-
-# This flag is only useful for Objective-C code. When set to YES local 
-# methods, which are defined in the implementation section but not in 
-# the interface are included in the documentation. 
-# If set to NO (the default) only methods in the interface are included.
-
-EXTRACT_LOCAL_METHODS = NO
-
-# If the HIDE_UNDOC_MEMBERS tag is set to YES, Doxygen will hide all 
-# undocumented members of documented classes, files or namespaces. 
-# If set to NO (the default) these members will be included in the 
-# various overviews, but no documentation section is generated. 
-# This option has no effect if EXTRACT_ALL is enabled.
-
-HIDE_UNDOC_MEMBERS = NO
-
-# If the HIDE_UNDOC_CLASSES tag is set to YES, Doxygen will hide all 
-# undocumented classes that are normally visible in the class hierarchy. 
-# If set to NO (the default) these classes will be included in the various 
-# overviews. This option has no effect if EXTRACT_ALL is enabled.
-
-HIDE_UNDOC_CLASSES = NO
-
-# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, Doxygen will hide all 
-# friend (class|struct|union) declarations. 
-# If set to NO (the default) these declarations will be included in the 
-# documentation.
-
-HIDE_FRIEND_COMPOUNDS = NO
-
-# If the HIDE_IN_BODY_DOCS tag is set to YES, Doxygen will hide any 
-# documentation blocks found inside the body of a function. 
-# If set to NO (the default) these blocks will be appended to the 
-# function's detailed documentation block.
-
-HIDE_IN_BODY_DOCS = NO
-
-# The INTERNAL_DOCS tag determines if documentation 
-# that is typed after a \internal command is included. If the tag is set 
-# to NO (the default) then the documentation will be excluded. 
-# Set it to YES to include the internal documentation.
-
-INTERNAL_DOCS = NO
-
-# If the CASE_SENSE_NAMES tag is set to NO then Doxygen will only generate 
-# file names in lower-case letters. If set to YES upper-case letters are also 
-# allowed. This is useful if you have classes or files whose names only differ 
-# in case and if your file system supports case sensitive file names. Windows 
-# and Mac users are advised to set this option to NO.
-
-CASE_SENSE_NAMES = YES
-
-# If the HIDE_SCOPE_NAMES tag is set to NO (the default) then Doxygen 
-# will show members with their full class and namespace scopes in the 
-# documentation. If set to YES the scope will be hidden.
-
-HIDE_SCOPE_NAMES = NO
-
-# If the SHOW_INCLUDE_FILES tag is set to YES (the default) then Doxygen 
-# will put a list of the files that are included by a file in the documentation 
-# of that file.
-
-SHOW_INCLUDE_FILES = NO
-
-# If the INLINE_INFO tag is set to YES (the default) then a tag [inline] 
-# is inserted in the documentation for inline members.
-
-INLINE_INFO = YES
-
-# If the SORT_MEMBER_DOCS tag is set to YES (the default) then doxygen 
-# will sort the (detailed) documentation of file and class members 
-# alphabetically by member name. If set to NO the members will appear in 
-# declaration order.
-
-SORT_MEMBER_DOCS = YES
-
-# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the 
-# brief documentation of file, namespace and class members alphabetically 
-# by member name. If set to NO (the default) the members will appear in 
-# declaration order.
-
-SORT_BRIEF_DOCS = NO
-
-# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be 
-# sorted by fully-qualified names, including namespaces. If set to 
-# NO (the default), the class list will be sorted only by class name, 
-# not including the namespace part. 
-# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES.
-# Note: This option applies only to the class list, not to the 
-# alphabetical list.
-
-SORT_BY_SCOPE_NAME = NO
-
-# The GENERATE_TODOLIST tag can be used to enable (YES) or 
-# disable (NO) the todo list. This list is created by putting \todo 
-# commands in the documentation.
-
-GENERATE_TODOLIST = YES
-
-# The GENERATE_TESTLIST tag can be used to enable (YES) or 
-# disable (NO) the test list. This list is created by putting \test 
-# commands in the documentation.
-
-GENERATE_TESTLIST = YES
-
-# The GENERATE_BUGLIST tag can be used to enable (YES) or 
-# disable (NO) the bug list. This list is created by putting \bug 
-# commands in the documentation.
-
-GENERATE_BUGLIST = YES
-
-# The GENERATE_DEPRECATEDLIST tag can be used to enable (YES) or 
-# disable (NO) the deprecated list. This list is created by putting 
-# \deprecated commands in the documentation.
-
-GENERATE_DEPRECATEDLIST = YES
-
-# The ENABLED_SECTIONS tag can be used to enable conditional 
-# documentation sections, marked by \if sectionname ... \endif.
-
-ENABLED_SECTIONS = 
-
-# The MAX_INITIALIZER_LINES tag determines the maximum number of lines 
-# the initial value of a variable or define consists of for it to appear in 
-# the documentation. If the initializer consists of more lines than specified 
-# here it will be hidden. Use a value of 0 to hide initializers completely. 
-# The appearance of the initializer of individual variables and defines in the 
-# documentation can be controlled using \showinitializer or \hideinitializer 
-# command in the documentation regardless of this setting.
-
-MAX_INITIALIZER_LINES = 30
-
-# Set the SHOW_USED_FILES tag to NO to disable the list of files generated 
-# at the bottom of the documentation of classes and structs. If set to YES the 
-# list will mention the files that were used to generate the documentation.
-
-SHOW_USED_FILES = YES
-
-# If the sources in your project are distributed over multiple directories 
-# then setting the SHOW_DIRECTORIES tag to YES will show the directory hierarchy 
-# in the documentation. The default is NO.
-
-SHOW_DIRECTORIES = NO
-
-# The FILE_VERSION_FILTER tag can be used to specify a program or script that 
-# doxygen should invoke to get the current version for each file (typically from the 
-# version control system). Doxygen will invoke the program by executing (via 
-# popen()) the command <command> <input-file>, where <command> is the value of 
-# the FILE_VERSION_FILTER tag, and <input-file> is the name of an input file 
-# provided by doxygen. Whatever the program writes to standard output 
-# is used as the file version. See the manual for examples.
-
-FILE_VERSION_FILTER = 
-
-#---------------------------------------------------------------------------
-# configuration options related to warning and progress messages
-#---------------------------------------------------------------------------
-
-# The QUIET tag can be used to turn on/off the messages that are generated 
-# by doxygen. Possible values are YES and NO. If left blank NO is used.
-
-QUIET = NO
-
-# The WARNINGS tag can be used to turn on/off the warning messages that are 
-# generated by doxygen. Possible values are YES and NO. If left blank 
-# NO is used.
-
-WARNINGS = YES
-
-# If WARN_IF_UNDOCUMENTED is set to YES, then doxygen will generate warnings 
-# for undocumented members. If EXTRACT_ALL is set to YES then this flag will 
-# automatically be disabled.
-
-WARN_IF_UNDOCUMENTED = YES
-
-# If WARN_IF_DOC_ERROR is set to YES, doxygen will generate warnings for 
-# potential errors in the documentation, such as not documenting some 
-# parameters in a documented function, or documenting parameters that 
-# don't exist or using markup commands wrongly.
-
-WARN_IF_DOC_ERROR = YES
-
-# This WARN_NO_PARAMDOC option can be abled to get warnings for 
-# functions that are documented, but have no documentation for their parameters 
-# or return value. If set to NO (the default) doxygen will only warn about 
-# wrong or incomplete parameter documentation, but not about the absence of 
-# documentation.
-
-WARN_NO_PARAMDOC = NO
-
-# The WARN_FORMAT tag determines the format of the warning messages that 
-# doxygen can produce. The string should contain the $file, $line, and $text 
-# tags, which will be replaced by the file and line number from which the 
-# warning originated and the warning text. Optionally the format may contain 
-# $version, which will be replaced by the version of the file (if it could 
-# be obtained via FILE_VERSION_FILTER)
-
-WARN_FORMAT = "$file:$line: $text"
-
-# The WARN_LOGFILE tag can be used to specify a file to which warning 
-# and error messages should be written. If left blank the output is written 
-# to stderr.
-
-WARN_LOGFILE = 
-
-#---------------------------------------------------------------------------
-# configuration options related to the input files
-#---------------------------------------------------------------------------
-
-# The INPUT tag can be used to specify the files and/or directories that contain 
-# documented source files. You may enter file names like "myfile.cpp" or 
-# directories like "/usr/src/myproject". Separate the files or directories 
-# with spaces.
-
-INPUT = include/zoo_lock.h
-
-# If the value of the INPUT tag contains directories, you can use the 
-# FILE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp 
-# and *.h) to filter out the source-files in the directories. If left 
-# blank the following patterns are tested: 
-# *.c *.cc *.cxx *.cpp *.c++ *.java *.ii *.ixx *.ipp *.i++ *.inl *.h *.hh *.hxx 
-# *.hpp *.h++ *.idl *.odl *.cs *.php *.php3 *.inc *.m *.mm *.py
-
-FILE_PATTERNS = 
-
-# The RECURSIVE tag can be used to turn specify whether or not subdirectories 
-# should be searched for input files as well. Possible values are YES and NO. 
-# If left blank NO is used.
-
-RECURSIVE = NO
-
-# The EXCLUDE tag can be used to specify files and/or directories that should 
-# excluded from the INPUT source files. This way you can easily exclude a 
-# subdirectory from a directory tree whose root is specified with the INPUT tag.
-
-EXCLUDE = 
-
-# The EXCLUDE_SYMLINKS tag can be used select whether or not files or 
-# directories that are symbolic links (a Unix filesystem feature) are excluded 
-# from the input.
-
-EXCLUDE_SYMLINKS = NO
-
-# If the value of the INPUT tag contains directories, you can use the 
-# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude 
-# certain files from those directories. Note that the wildcards are matched 
-# against the file with absolute path, so to exclude all test directories 
-# for example use the pattern */test/*
-
-EXCLUDE_PATTERNS = 
-
-# The EXAMPLE_PATH tag can be used to specify one or more files or 
-# directories that contain example code fragments that are included (see 
-# the \include command).
-
-EXAMPLE_PATH = 
-
-# If the value of the EXAMPLE_PATH tag contains directories, you can use the 
-# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp 
-# and *.h) to filter out the source-files in the directories. If left 
-# blank all files are included.
-
-EXAMPLE_PATTERNS = 
-
-# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be 
-# searched for input files to be used with the \include or \dontinclude 
-# commands irrespective of the value of the RECURSIVE tag. 
-# Possible values are YES and NO. If left blank NO is used.
-
-EXAMPLE_RECURSIVE = NO
-
-# The IMAGE_PATH tag can be used to specify one or more files or 
-# directories that contain image that are included in the documentation (see 
-# the \image command).
-
-IMAGE_PATH = 
-
-# The INPUT_FILTER tag can be used to specify a program that doxygen should 
-# invoke to filter for each input file. Doxygen will invoke the filter program 
-# by executing (via popen()) the command <filter> <input-file>, where <filter> 
-# is the value of the INPUT_FILTER tag, and <input-file> is the name of an 
-# input file. Doxygen will then use the output that the filter program writes 
-# to standard output.  If FILTER_PATTERNS is specified, this tag will be 
-# ignored.
-
-INPUT_FILTER = 
-
-# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern 
-# basis.  Doxygen will compare the file name with each pattern and apply the 
-# filter if there is a match.  The filters are a list of the form: 
-# pattern=filter (like *.cpp=my_cpp_filter). See INPUT_FILTER for further 
-# info on how filters are used. If FILTER_PATTERNS is empty, INPUT_FILTER 
-# is applied to all files.
-
-FILTER_PATTERNS = 
-
-# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using 
-# INPUT_FILTER) will be used to filter the input files when producing source 
-# files to browse (i.e. when SOURCE_BROWSER is set to YES).
-
-FILTER_SOURCE_FILES = NO
-
-#---------------------------------------------------------------------------
-# configuration options related to source browsing
-#---------------------------------------------------------------------------
-
-# If the SOURCE_BROWSER tag is set to YES then a list of source files will 
-# be generated. Documented entities will be cross-referenced with these sources. 
-# Note: To get rid of all source code in the generated output, make sure also 
-# VERBATIM_HEADERS is set to NO.
-
-SOURCE_BROWSER = NO
-
-# Setting the INLINE_SOURCES tag to YES will include the body 
-# of functions and classes directly in the documentation.
-
-INLINE_SOURCES = NO
-
-# Setting the STRIP_CODE_COMMENTS tag to YES (the default) will instruct 
-# doxygen to hide any special comment blocks from generated source code 
-# fragments. Normal C and C++ comments will always remain visible.
-
-STRIP_CODE_COMMENTS = YES
-
-# If the REFERENCED_BY_RELATION tag is set to YES (the default) 
-# then for each documented function all documented 
-# functions referencing it will be listed.
-
-REFERENCED_BY_RELATION = YES
-
-# If the REFERENCES_RELATION tag is set to YES (the default) 
-# then for each documented function all documented entities 
-# called/used by that function will be listed.
-
-REFERENCES_RELATION = YES
-
-# If the REFERENCES_LINK_SOURCE tag is set to YES (the default)
-# and SOURCE_BROWSER tag is set to YES, then the hyperlinks from
-# functions in REFERENCES_RELATION and REFERENCED_BY_RELATION lists will
-# link to the source code.  Otherwise they will link to the documentstion.
-
-REFERENCES_LINK_SOURCE = YES
-
-# If the USE_HTAGS tag is set to YES then the references to source code 
-# will point to the HTML generated by the htags(1) tool instead of doxygen 
-# built-in source browser. The htags tool is part of GNU's global source 
-# tagging system (see http://www.gnu.org/software/global/global.html). You 
-# will need version 4.8.6 or higher.
-
-USE_HTAGS = NO
-
-# If the VERBATIM_HEADERS tag is set to YES (the default) then Doxygen 
-# will generate a verbatim copy of the header file for each class for 
-# which an include is specified. Set to NO to disable this.
-
-VERBATIM_HEADERS = YES
-
-#---------------------------------------------------------------------------
-# configuration options related to the alphabetical class index
-#---------------------------------------------------------------------------
-
-# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index 
-# of all compounds will be generated. Enable this if the project 
-# contains a lot of classes, structs, unions or interfaces.
-
-ALPHABETICAL_INDEX = NO
-
-# If the alphabetical index is enabled (see ALPHABETICAL_INDEX) then 
-# the COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns 
-# in which this list will be split (can be a number in the range [1..20])
-
-COLS_IN_ALPHA_INDEX = 5
-
-# In case all classes in a project start with a common prefix, all 
-# classes will be put under the same header in the alphabetical index. 
-# The IGNORE_PREFIX tag can be used to specify one or more prefixes that 
-# should be ignored while generating the index headers.
-
-IGNORE_PREFIX = 
-
-#---------------------------------------------------------------------------
-# configuration options related to the HTML output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_HTML tag is set to YES (the default) Doxygen will 
-# generate HTML output.
-
-GENERATE_HTML = $(GENERATE_HTML)
-
-# The HTML_OUTPUT tag is used to specify where the HTML docs will be put. 
-# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
-# put in front of it. If left blank `html' will be used as the default path.
-
-HTML_OUTPUT = html
-
-# The HTML_FILE_EXTENSION tag can be used to specify the file extension for 
-# each generated HTML page (for example: .htm,.php,.asp). If it is left blank 
-# doxygen will generate files with .html extension.
-
-HTML_FILE_EXTENSION = .html
-
-# The HTML_HEADER tag can be used to specify a personal HTML header for 
-# each generated HTML page. If it is left blank doxygen will generate a 
-# standard header.
-
-HTML_HEADER = 
-
-# The HTML_FOOTER tag can be used to specify a personal HTML footer for 
-# each generated HTML page. If it is left blank doxygen will generate a 
-# standard footer.
-
-HTML_FOOTER = 
-
-# The HTML_STYLESHEET tag can be used to specify a user-defined cascading 
-# style sheet that is used by each HTML page. It can be used to 
-# fine-tune the look of the HTML output. If the tag is left blank doxygen 
-# will generate a default style sheet. Note that doxygen will try to copy 
-# the style sheet file to the HTML output directory, so don't put your own 
-# stylesheet in the HTML output directory as well, or it will be erased!
-
-HTML_STYLESHEET = 
-
-# If the HTML_ALIGN_MEMBERS tag is set to YES, the members of classes, 
-# files or namespaces will be aligned in HTML using tables. If set to 
-# NO a bullet list will be used.
-
-HTML_ALIGN_MEMBERS = YES
-
-# If the GENERATE_HTMLHELP tag is set to YES, additional index files 
-# will be generated that can be used as input for tools like the 
-# Microsoft HTML help workshop to generate a compressed HTML help file (.chm) 
-# of the generated HTML documentation.
-
-GENERATE_HTMLHELP = $(GENERATE_HTMLHELP)
-
-# If the GENERATE_HTMLHELP tag is set to YES, the CHM_FILE tag can 
-# be used to specify the file name of the resulting .chm file. You 
-# can add a path in front of the file if the result should not be 
-# written to the html output directory.
-
-CHM_FILE = ../$(PROJECT).chm
-
-# If the GENERATE_HTMLHELP tag is set to YES, the HHC_LOCATION tag can 
-# be used to specify the location (absolute path including file name) of 
-# the HTML help compiler (hhc.exe). If non-empty doxygen will try to run 
-# the HTML help compiler on the generated index.hhp.
-
-HHC_LOCATION = $(HHC_PATH)
-
-# If the GENERATE_HTMLHELP tag is set to YES, the GENERATE_CHI flag 
-# controls if a separate .chi index file is generated (YES) or that 
-# it should be included in the master .chm file (NO).
-
-GENERATE_CHI = $(GENERATE_CHI)
-
-# If the GENERATE_HTMLHELP tag is set to YES, the BINARY_TOC flag 
-# controls whether a binary table of contents is generated (YES) or a 
-# normal table of contents (NO) in the .chm file.
-
-BINARY_TOC = NO
-
-# The TOC_EXPAND flag can be set to YES to add extra items for group members 
-# to the contents of the HTML help documentation and to the tree view.
-
-TOC_EXPAND = NO
-
-# The DISABLE_INDEX tag can be used to turn on/off the condensed index at 
-# top of each HTML page. The value NO (the default) enables the index and 
-# the value YES disables it.
-
-DISABLE_INDEX = NO
-
-# This tag can be used to set the number of enum values (range [1..20]) 
-# that doxygen will group on one line in the generated HTML documentation.
-
-ENUM_VALUES_PER_LINE = 4
-
-# If the GENERATE_TREEVIEW tag is set to YES, a side panel will be
-# generated containing a tree-like index structure (just like the one that 
-# is generated for HTML Help). For this to work a browser that supports 
-# JavaScript, DHTML, CSS and frames is required (for instance Mozilla 1.0+, 
-# Netscape 6.0+, Internet explorer 5.0+, or Konqueror). Windows users are 
-# probably better off using the HTML help feature.
-
-GENERATE_TREEVIEW = NO
-
-# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be 
-# used to set the initial width (in pixels) of the frame in which the tree 
-# is shown.
-
-TREEVIEW_WIDTH = 250
-
-#---------------------------------------------------------------------------
-# configuration options related to the LaTeX output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_LATEX tag is set to YES (the default) Doxygen will 
-# generate Latex output.
-
-GENERATE_LATEX = $(GENERATE_LATEX)
-
-# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. 
-# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
-# put in front of it. If left blank `latex' will be used as the default path.
-
-LATEX_OUTPUT = latex
-
-# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be 
-# invoked. If left blank `latex' will be used as the default command name.
-
-LATEX_CMD_NAME = latex
-
-# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to 
-# generate index for LaTeX. If left blank `makeindex' will be used as the 
-# default command name.
-
-MAKEINDEX_CMD_NAME = makeindex
-
-# If the COMPACT_LATEX tag is set to YES Doxygen generates more compact 
-# LaTeX documents. This may be useful for small projects and may help to 
-# save some trees in general.
-
-COMPACT_LATEX = NO
-
-# The PAPER_TYPE tag can be used to set the paper type that is used 
-# by the printer. Possible values are: a4, a4wide, letter, legal and 
-# executive. If left blank a4wide will be used.
-
-PAPER_TYPE = $(PAPER_SIZE)
-
-# The EXTRA_PACKAGES tag can be to specify one or more names of LaTeX 
-# packages that should be included in the LaTeX output.
-
-EXTRA_PACKAGES = 
-
-# The LATEX_HEADER tag can be used to specify a personal LaTeX header for 
-# the generated latex document. The header should contain everything until 
-# the first chapter. If it is left blank doxygen will generate a 
-# standard header. Notice: only use this tag if you know what you are doing!
-
-LATEX_HEADER = 
-
-# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated 
-# is prepared for conversion to pdf (using ps2pdf). The pdf file will 
-# contain links (just like the HTML output) instead of page references 
-# This makes the output suitable for online browsing using a pdf viewer.
-
-PDF_HYPERLINKS = NO
-
-# If the USE_PDFLATEX tag is set to YES, pdflatex will be used instead of 
-# plain latex in the generated Makefile. Set this option to YES to get a 
-# higher quality PDF documentation.
-
-USE_PDFLATEX = $(GENERATE_PDF)
-
-# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \\batchmode. 
-# command to the generated LaTeX files. This will instruct LaTeX to keep 
-# running if errors occur, instead of asking the user for help. 
-# This option is also used when generating formulas in HTML.
-
-LATEX_BATCHMODE = NO
-
-# If LATEX_HIDE_INDICES is set to YES then doxygen will not 
-# include the index chapters (such as File Index, Compound Index, etc.) 
-# in the output.
-
-LATEX_HIDE_INDICES = NO
-
-#---------------------------------------------------------------------------
-# configuration options related to the RTF output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_RTF tag is set to YES Doxygen will generate RTF output 
-# The RTF output is optimized for Word 97 and may not look very pretty with 
-# other RTF readers or editors.
-
-GENERATE_RTF = $(GENERATE_RTF)
-
-# The RTF_OUTPUT tag is used to specify where the RTF docs will be put. 
-# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
-# put in front of it. If left blank `rtf' will be used as the default path.
-
-RTF_OUTPUT = rtf
-
-# If the COMPACT_RTF tag is set to YES Doxygen generates more compact 
-# RTF documents. This may be useful for small projects and may help to 
-# save some trees in general.
-
-COMPACT_RTF = NO
-
-# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated 
-# will contain hyperlink fields. The RTF file will 
-# contain links (just like the HTML output) instead of page references. 
-# This makes the output suitable for online browsing using WORD or other 
-# programs which support those fields. 
-# Note: wordpad (write) and others do not support links.
-
-RTF_HYPERLINKS = NO
-
-# Load stylesheet definitions from file. Syntax is similar to doxygen's 
-# config file, i.e. a series of assignments. You only have to provide 
-# replacements, missing definitions are set to their default value.
-
-RTF_STYLESHEET_FILE = 
-
-# Set optional variables used in the generation of an rtf document. 
-# Syntax is similar to doxygen's config file.
-
-RTF_EXTENSIONS_FILE = 
-
-#---------------------------------------------------------------------------
-# configuration options related to the man page output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_MAN tag is set to YES (the default) Doxygen will 
-# generate man pages
-
-GENERATE_MAN = $(GENERATE_MAN)
-
-# The MAN_OUTPUT tag is used to specify where the man pages will be put. 
-# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
-# put in front of it. If left blank `man' will be used as the default path.
-
-MAN_OUTPUT = man
-
-# The MAN_EXTENSION tag determines the extension that is added to 
-# the generated man pages (default is the subroutine's section .3)
-
-MAN_EXTENSION = .3
-
-# If the MAN_LINKS tag is set to YES and Doxygen generates man output, 
-# then it will generate one additional man file for each entity 
-# documented in the real man page(s). These additional files 
-# only source the real man page, but without them the man command 
-# would be unable to find the correct page. The default is NO.
-
-MAN_LINKS = NO
-
-#---------------------------------------------------------------------------
-# configuration options related to the XML output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_XML tag is set to YES Doxygen will 
-# generate an XML file that captures the structure of 
-# the code including all documentation.
-
-GENERATE_XML = $(GENERATE_XML)
-
-# The XML_OUTPUT tag is used to specify where the XML pages will be put. 
-# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
-# put in front of it. If left blank `xml' will be used as the default path.
-
-XML_OUTPUT = xml
-
-# The XML_SCHEMA tag can be used to specify an XML schema, 
-# which can be used by a validating XML parser to check the 
-# syntax of the XML files.
-
-XML_SCHEMA = 
-
-# The XML_DTD tag can be used to specify an XML DTD, 
-# which can be used by a validating XML parser to check the 
-# syntax of the XML files.
-
-XML_DTD = 
-
-# If the XML_PROGRAMLISTING tag is set to YES Doxygen will 
-# dump the program listings (including syntax highlighting 
-# and cross-referencing information) to the XML output. Note that 
-# enabling this will significantly increase the size of the XML output.
-
-XML_PROGRAMLISTING = YES
-
-#---------------------------------------------------------------------------
-# configuration options for the AutoGen Definitions output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_AUTOGEN_DEF tag is set to YES Doxygen will 
-# generate an AutoGen Definitions (see autogen.sf.net) file 
-# that captures the structure of the code including all 
-# documentation. Note that this feature is still experimental 
-# and incomplete at the moment.
-
-GENERATE_AUTOGEN_DEF = NO
-
-#---------------------------------------------------------------------------
-# configuration options related to the Perl module output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_PERLMOD tag is set to YES Doxygen will 
-# generate a Perl module file that captures the structure of 
-# the code including all documentation. Note that this 
-# feature is still experimental and incomplete at the 
-# moment.
-
-GENERATE_PERLMOD = NO
-
-# If the PERLMOD_LATEX tag is set to YES Doxygen will generate 
-# the necessary Makefile rules, Perl scripts and LaTeX code to be able 
-# to generate PDF and DVI output from the Perl module output.
-
-PERLMOD_LATEX = NO
-
-# If the PERLMOD_PRETTY tag is set to YES the Perl module output will be 
-# nicely formatted so it can be parsed by a human reader.  This is useful 
-# if you want to understand what is going on.  On the other hand, if this 
-# tag is set to NO the size of the Perl module output will be much smaller 
-# and Perl will parse it just the same.
-
-PERLMOD_PRETTY = YES
-
-# The names of the make variables in the generated doxyrules.make file 
-# are prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX. 
-# This is useful so different doxyrules.make files included by the same 
-# Makefile don't overwrite each other's variables.
-
-PERLMOD_MAKEVAR_PREFIX = 
-
-#---------------------------------------------------------------------------
-# Configuration options related to the preprocessor   
-#---------------------------------------------------------------------------
-
-# If the ENABLE_PREPROCESSING tag is set to YES (the default) Doxygen will 
-# evaluate all C-preprocessor directives found in the sources and include 
-# files.
-
-ENABLE_PREPROCESSING = YES
-
-# If the MACRO_EXPANSION tag is set to YES Doxygen will expand all macro 
-# names in the source code. If set to NO (the default) only conditional 
-# compilation will be performed. Macro expansion can be done in a controlled 
-# way by setting EXPAND_ONLY_PREDEF to YES.
-
-MACRO_EXPANSION = NO
-
-# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES 
-# then the macro expansion is limited to the macros specified with the 
-# PREDEFINED and EXPAND_AS_DEFINED tags.
-
-EXPAND_ONLY_PREDEF = NO
-
-# If the SEARCH_INCLUDES tag is set to YES (the default) the includes files 
-# in the INCLUDE_PATH (see below) will be search if a #include is found.
-
-SEARCH_INCLUDES = YES
-
-# The INCLUDE_PATH tag can be used to specify one or more directories that 
-# contain include files that are not input files but should be processed by 
-# the preprocessor.
-
-INCLUDE_PATH = 
-
-# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard 
-# patterns (like *.h and *.hpp) to filter out the header-files in the 
-# directories. If left blank, the patterns specified with FILE_PATTERNS will 
-# be used.
-
-INCLUDE_FILE_PATTERNS = 
-
-# The PREDEFINED tag can be used to specify one or more macro names that 
-# are defined before the preprocessor is started (similar to the -D option of 
-# gcc). The argument of the tag is a list of macros of the form: name 
-# or name=definition (no spaces). If the definition and the = are 
-# omitted =1 is assumed. To prevent a macro definition from being 
-# undefined via #undef or recursively expanded use the := operator 
-# instead of the = operator.
-
-PREDEFINED = 
-
-# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then 
-# this tag can be used to specify a list of macro names that should be expanded. 
-# The macro definition that is found in the sources will be used. 
-# Use the PREDEFINED tag if you want to use a different macro definition.
-
-EXPAND_AS_DEFINED = 
-
-# If the SKIP_FUNCTION_MACROS tag is set to YES (the default) then 
-# doxygen's preprocessor will remove all function-like macros that are alone 
-# on a line, have an all uppercase name, and do not end with a semicolon. Such 
-# function macros are typically used for boiler-plate code, and will confuse 
-# the parser if not removed.
-
-SKIP_FUNCTION_MACROS = YES
-
-#---------------------------------------------------------------------------
-# Configuration::additions related to external references   
-#---------------------------------------------------------------------------
-
-# The TAGFILES option can be used to specify one or more tagfiles. 
-# Optionally an initial location of the external documentation 
-# can be added for each tagfile. The format of a tag file without 
-# this location is as follows: 
-#   TAGFILES = file1 file2 ... 
-# Adding location for the tag files is done as follows: 
-#   TAGFILES = file1=loc1 "file2 = loc2" ... 
-# where "loc1" and "loc2" can be relative or absolute paths or 
-# URLs. If a location is present for each tag, the installdox tool 
-# does not have to be run to correct the links.
-# Note that each tag file must have a unique name
-# (where the name does NOT include the path)
-# If a tag file is not located in the directory in which doxygen 
-# is run, you must also specify the path to the tagfile here.
-
-TAGFILES = 
-
-# When a file name is specified after GENERATE_TAGFILE, doxygen will create 
-# a tag file that is based on the input files it reads.
-
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-# If set to YES, the inheritance and collaboration graphs will hide 
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-
-# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is 
-# available from the path. This tool is part of Graphviz, a graph visualization 
-# toolkit from AT&T and Lucent Bell Labs. The other options in this section 
-# have no effect if this option is set to NO (the default)
-
-HAVE_DOT = $(HAVE_DOT)
-
-# If the CLASS_GRAPH and HAVE_DOT tags are set to YES then doxygen 
-# will generate a graph for each documented class showing the direct and 
-# indirect inheritance relations. Setting this tag to YES will force the 
-# the CLASS_DIAGRAMS tag to NO.
-
-CLASS_GRAPH = YES
-
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-# indirect implementation dependencies (inheritance, containment, and 
-# class references variables) of the class with other documented classes.
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-# collaboration diagrams in a style similar to the OMG's Unified Modeling 
-# Language.
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-
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-# indirectly include this file.
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-# Note that enabling this option will significantly increase the time of a run. 
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-# found. If left blank, it is assumed the dot tool can be found in the path.
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-# contain dot files that are included in the documentation (see the 
-# \dotfile command).
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-# read).
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-# files in one run (i.e. multiple -o and -T options on the command line). This 
-# makes dot run faster, but since only newer versions of dot (>1.8.10) 
-# support this, this feature is disabled by default.
-
-DOT_MULTI_TARGETS = NO
-
-# If the GENERATE_LEGEND tag is set to YES (the default) Doxygen will 
-# generate a legend page explaining the meaning of the various boxes and 
-# arrows in the dot generated graphs.
-
-GENERATE_LEGEND = YES
-
-# If the DOT_CLEANUP tag is set to YES (the default) Doxygen will 
-# remove the intermediate dot files that are used to generate 
-# the various graphs.
-
-DOT_CLEANUP = YES
-
-#---------------------------------------------------------------------------
-# Configuration::additions related to the search engine   
-#---------------------------------------------------------------------------
-
-# The SEARCHENGINE tag specifies whether or not a search engine should be 
-# used. If set to NO the values of all tags below this one will be ignored.
-
-SEARCHENGINE = NO

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/src/c/configure.ac
----------------------------------------------------------------------
diff --git a/src/recipes/lock/src/c/configure.ac b/src/recipes/lock/src/c/configure.ac
deleted file mode 100644
index 3954123..0000000
--- a/src/recipes/lock/src/c/configure.ac
+++ /dev/null
@@ -1,82 +0,0 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#                                               -*- Autoconf -*-
-# Process this file with autoconf to produce a configure script.
-
-AC_PREREQ(2.59)
-
-AC_INIT([zoolock], [3.2.0])
-
-AC_CONFIG_SRCDIR([include/zoo_lock.h])
-
-PACKAGE=zoolock
-VERSION=1.0
-
-AC_SUBST(PACKAGE)
-AC_SUBST(VERSION)
-
-BUILD_PATH="`pwd`"
-
-# Checks for programs.
-AC_LANG_CPLUSPLUS
-
-AM_INIT_AUTOMAKE([-Wall foreign])
-# Checks for libraries.
-
-#initialize Doxygen support
-DX_HTML_FEATURE(ON)
-DX_CHM_FEATURE(OFF)
-DX_CHI_FEATURE(OFF)
-DX_MAN_FEATURE(OFF)
-DX_RTF_FEATURE(OFF)
-DX_XML_FEATURE(OFF)
-DX_PDF_FEATURE(OFF)
-DX_PS_FEATURE(OFF)
-DX_INIT_DOXYGEN([zookeeper-locks],[c-doc.Doxyfile],[docs])
-
-  
-ZOOKEEPER_PATH=${BUILD_PATH}/../../../../../src/c
-ZOOKEEPER_LD=-L${BUILD_PATH}/../../../../../src/c\ -lzookeeper_mt
-
-AC_SUBST(ZOOKEEPER_PATH)
-AC_SUBST(ZOOKEEPER_LD)
-
-# Checks for header files.
-AC_HEADER_DIRENT
-AC_HEADER_STDC
-AC_CHECK_HEADERS([fcntl.h stdlib.h string.h sys/time.h unistd.h])
-
-# Checks for typedefs, structures, and compiler characteristics.
-AC_HEADER_STDBOOL
-AC_C_CONST
-AC_TYPE_UID_T
-AC_C_INLINE
-AC_TYPE_OFF_T
-AC_TYPE_SIZE_T
-AC_STRUCT_ST_BLOCKS
-AC_HEADER_TIME
-AC_C_VOLATILE
-AC_PROG_CC
-AC_PROG_LIBTOOL
-#check for cppunit 
-AM_PATH_CPPUNIT(1.10.2)
-# Checks for library functions.
-AC_FUNC_UTIME_NULL
-AC_CHECK_FUNCS([gettimeofday memset mkdir rmdir strdup strerror strstr strtol strtoul strtoull utime])
-
-AC_CONFIG_FILES([Makefile])
-AC_OUTPUT
-AC_C_VOLATILE

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/src/c/include/zoo_lock.h
----------------------------------------------------------------------
diff --git a/src/recipes/lock/src/c/include/zoo_lock.h b/src/recipes/lock/src/c/include/zoo_lock.h
deleted file mode 100644
index 5c06bbf..0000000
--- a/src/recipes/lock/src/c/include/zoo_lock.h
+++ /dev/null
@@ -1,168 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#ifndef ZOOKEEPER_LOCK_H_
-#define ZOOKEEPER_LOCK_H_
-
-#include <zookeeper.h>
-#include <pthread.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-/**
- * \brief the call back function called on status change of lock
- * 
- * the call back funtion is called with a rc of 0 if lock is acquired and 
- * with an rc of 1 if the lock is released
- * \param rc the value to let us know if its locked or unlocked
- * \param cbdata the callback data that we passed when initializing 
- * the zookeeper lock.
- */
-
-typedef void (* zkr_lock_completion) (int rc, void* cbdata);
-
-/** 
- * \file zoo_lock.h
- * \brief zookeeper recipe for locking and leader election.
- * this api implements a writelock on a given path in zookeeper.
- * this api can also be used for leader election.
- */
-
-struct zkr_lock_mutex {
-    zhandle_t *zh;
-    char *path;
-    struct ACL_vector *acl;
-    char *id;
-    void *cbdata;
-    zkr_lock_completion completion;
-    pthread_mutex_t pmutex;
-    int isOwner;
-    char* ownerid;
-};
-
-typedef struct zkr_lock_mutex zkr_lock_mutex_t;
-
-
-/**
- * \brief initializing a zookeeper lock.
- *
- * this method instantiates the zookeeper mutex lock.
- * \param mutex the mutex to initialize
- * \param zh the zookeeper handle to use
- * \param path the path in zookeeper to use for locking
- * \param acl the acls to use in zookeeper.
- * \return return 0 if successful.
- */
-ZOOAPI int zkr_lock_init(zkr_lock_mutex_t *mutex, zhandle_t* zh, 
-                      char* path, struct ACL_vector *acl);
-
-/**
- * \brief initializing a zookeeper lock.
- *
- *
- * this method instantiates the zookeeper mutex lock with
- * a completion function.
- * 
- * \param mutex the mutex to initialize
- * \param zh the zookeeper handle to use
- * \param path the path in zookeeper to use for locking
- * \param acl the acls to use in zookeeper.
- * \param completion the callback thats called when lock 
- * is acquired and released.
- * \param cbdata the callback method is called with data
- * \return return 0 if successful.
- */
-ZOOAPI int zkr_lock_init_cb(zkr_lock_mutex_t *mutex, zhandle_t* zh,
-                      char* path, struct ACL_vector *acl, 
-                      zkr_lock_completion completion, void* cbdata);
-
-/**
- * \brief lock the zookeeper mutex
- *
- * this method tries locking the mutex
- * \param mutex the zookeeper mutex
- * \return return 0 if there is no error. check 
- * with zkr_lock_isowner() if you have the lock
- */
-ZOOAPI int zkr_lock_lock(zkr_lock_mutex_t *mutex);
-
-/**
- * \brief unlock the zookeeper mutex
- *
- * this method unlocks the zookeeper mutex
- * \param mutex the zookeeper mutex
- * \return return 0 if there is not error in executing unlock.
- * else returns non zero
- */
-ZOOAPI int zkr_lock_unlock(zkr_lock_mutex_t *mutex);
-
-/**
- * \brief set the callback function for zookeeper mutex
- * 
- * this method sets the callback for zookeeper mutex
- * \param mutex the zookeeper mutex
- * \param callback the call back completion function
- */
-ZOOAPI void zkr_lock_setcallback(zkr_lock_mutex_t *mutex, 
-                           zkr_lock_completion completion);
-
-/**
- * \brief get the callback function for zookeeper mutex
- *
- * this method gets the callback funtion for zookeeper mutex
- * \param mutex the zookeeper mutex
- * \return the lock completion function
- */
-ZOOAPI zkr_lock_completion zkr_lock_getcallback(zkr_lock_mutex_t *mutex);
-
-/**
- * \brief destroy the mutex 
- * this method free the mutex
- * \param mutex destroy the zookepeer lock.
- * \return return 0 if destroyed.
- */
-ZOOAPI int zkr_lock_destroy(zkr_lock_mutex_t* mutex);
-
-/**
- * \brief return the parent path this mutex is using
- * this method returns the parent path
- * \param mutex the mutex
- * \return return the parent path
- */
-ZOOAPI char* zkr_lock_getpath(zkr_lock_mutex_t *mutex);
-
-/**
- * \brief return if this mutex is owner of the lock
- * this method returns if its owner or not
- * \param mutex the mutex
- * \return return true if is owner and false if not
- */
-ZOOAPI int zkr_lock_isowner(zkr_lock_mutex_t *mutex);
-
-/**
- * \brief return the id for this mutex
- * this mutex retunrns the id string 
- * \param mutex the mutex
- * \return the id for this mutex
- */
-ZOOAPI char* zkr_lock_getid(zkr_lock_mutex_t *mutex);
-
-#ifdef __cplusplus
-}
-#endif
-#endif  //ZOOKEEPER_LOCK_H_


[05/10] zookeeper git commit: ZOOKEEPER-3033: branch-3.4 - MAVEN MIGRATION - Step 1.2 - zk-recipes

Posted by an...@apache.org.
http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderElectionAware.java
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderElectionAware.java b/zookeeper-recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderElectionAware.java
new file mode 100644
index 0000000..6c32ebc
--- /dev/null
+++ b/zookeeper-recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderElectionAware.java
@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.zookeeper.recipes.leader;
+
+import org.apache.zookeeper.recipes.leader.LeaderElectionSupport.EventType;
+
+/**
+ * An interface to be implemented by clients that want to receive election
+ * events.
+ */
+public interface LeaderElectionAware {
+
+  /**
+   * Called during each state transition. Current, low level events are provided
+   * at the beginning and end of each state. For instance, START may be followed
+   * by OFFER_START, OFFER_COMPLETE, DETERMINE_START, DETERMINE_COMPLETE, and so
+   * on.
+   * 
+   * @param eventType
+   */
+  public void onElectionEvent(EventType eventType);
+
+}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderElectionSupport.java
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderElectionSupport.java b/zookeeper-recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderElectionSupport.java
new file mode 100644
index 0000000..8f8ae20
--- /dev/null
+++ b/zookeeper-recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderElectionSupport.java
@@ -0,0 +1,461 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.zookeeper.recipes.leader;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import org.apache.zookeeper.CreateMode;
+import org.apache.zookeeper.KeeperException;
+import org.apache.zookeeper.WatchedEvent;
+import org.apache.zookeeper.Watcher;
+import org.apache.zookeeper.ZooDefs;
+import org.apache.zookeeper.ZooKeeper;
+import org.apache.zookeeper.data.Stat;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * <p>
+ * A leader election support library implementing the ZooKeeper election recipe.
+ * </p>
+ * <p>
+ * This support library is meant to simplify the construction of an exclusive
+ * leader system on top of Apache ZooKeeper. Any application that can become the
+ * leader (usually a process that provides a service, exclusively) would
+ * configure an instance of this class with their hostname, at least one
+ * listener (an implementation of {@link LeaderElectionAware}), and either an
+ * instance of {@link ZooKeeper} or the proper connection information. Once
+ * configured, invoking {@link #start()} will cause the client to connect to
+ * ZooKeeper and create a leader offer. The library then determines if it has
+ * been elected the leader using the algorithm described below. The client
+ * application can follow all state transitions via the listener callback.
+ * </p>
+ * <p>
+ * Leader election algorithm
+ * </p>
+ * <p>
+ * The library starts in a START state. Through each state transition, a state
+ * start and a state complete event are sent to all listeners. When
+ * {@link #start()} is called, a leader offer is created in ZooKeeper. A leader
+ * offer is an ephemeral sequential node that indicates a process that can act
+ * as a leader for this service. A read of all leader offers is then performed.
+ * The offer with the lowest sequence number is said to be the leader. The
+ * process elected leader will transition to the leader state. All other
+ * processes will transition to a ready state. Internally, the library creates a
+ * ZooKeeper watch on the leader offer with the sequence ID of N - 1 (where N is
+ * the process's sequence ID). If that offer disappears due to a process
+ * failure, the watching process will run through the election determination
+ * process again to see if it should become the leader. Note that sequence ID
+ * may not be contiguous due to failed processes. A process may revoke its offer
+ * to be the leader at any time by calling {@link #stop()}.
+ * </p>
+ * <p>
+ * Guarantees (not) Made and Caveats
+ * </p>
+ * <p>
+ * <ul>
+ * <li>It is possible for a (poorly implemented) process to create a leader
+ * offer, get the lowest sequence ID, but have something terrible occur where it
+ * maintains its connection to ZK (and thus its ephemeral leader offer node) but
+ * doesn't actually provide the service in question. It is up to the user to
+ * ensure any failure to become the leader - and whatever that means in the
+ * context of the user's application - results in a revocation of its leader
+ * offer (i.e. that {@link #stop()} is called).</li>
+ * <li>It is possible for ZK timeouts and retries to play a role in service
+ * liveliness. In other words, if process A has the lowest sequence ID but
+ * requires a few attempts to read the other leader offers' sequence IDs,
+ * election can seem slow. Users should apply timeouts during the determination
+ * process if they need to hit a specific SLA.</li>
+ * <li>The library makes a "best effort" to detect catastrophic failures of the
+ * process. It is possible that an unforeseen event results in (for instance) an
+ * unchecked exception that propagates passed normal error handling code. This
+ * normally doesn't matter as the same exception would almost certain destroy
+ * the entire process and thus the connection to ZK and the leader offer
+ * resulting in another round of leader determination.</li>
+ * </ul>
+ * </p>
+ */
+public class LeaderElectionSupport implements Watcher {
+
+  private static final Logger logger = LoggerFactory
+      .getLogger(LeaderElectionSupport.class);
+
+  private ZooKeeper zooKeeper;
+
+  private State state;
+  private Set<LeaderElectionAware> listeners;
+
+  private String rootNodeName;
+  private LeaderOffer leaderOffer;
+  private String hostName;
+
+  public LeaderElectionSupport() {
+    state = State.STOP;
+    listeners = Collections.synchronizedSet(new HashSet<LeaderElectionAware>());
+  }
+
+  /**
+   * <p>
+   * Start the election process. This method will create a leader offer,
+   * determine its status, and either become the leader or become ready. If an
+   * instance of {@link ZooKeeper} has not yet been configured by the user, a
+   * new instance is created using the connectString and sessionTime specified.
+   * </p>
+   * <p>
+   * Any (anticipated) failures result in a failed event being sent to all
+   * listeners.
+   * </p>
+   */
+  public synchronized void start() {
+    state = State.START;
+    dispatchEvent(EventType.START);
+
+    logger.info("Starting leader election support");
+
+    if (zooKeeper == null) {
+      throw new IllegalStateException(
+          "No instance of zookeeper provided. Hint: use setZooKeeper()");
+    }
+
+    if (hostName == null) {
+      throw new IllegalStateException(
+          "No hostname provided. Hint: use setHostName()");
+    }
+
+    try {
+      makeOffer();
+      determineElectionStatus();
+    } catch (KeeperException e) {
+      becomeFailed(e);
+      return;
+    } catch (InterruptedException e) {
+      becomeFailed(e);
+      return;
+    }
+  }
+
+  /**
+   * Stops all election services, revokes any outstanding leader offers, and
+   * disconnects from ZooKeeper.
+   */
+  public synchronized void stop() {
+    state = State.STOP;
+    dispatchEvent(EventType.STOP_START);
+
+    logger.info("Stopping leader election support");
+
+    if (leaderOffer != null) {
+      try {
+        zooKeeper.delete(leaderOffer.getNodePath(), -1);
+        logger.info("Removed leader offer {}", leaderOffer.getNodePath());
+      } catch (InterruptedException e) {
+        becomeFailed(e);
+      } catch (KeeperException e) {
+        becomeFailed(e);
+      }
+    }
+
+    dispatchEvent(EventType.STOP_COMPLETE);
+  }
+
+  private void makeOffer() throws KeeperException, InterruptedException {
+    state = State.OFFER;
+    dispatchEvent(EventType.OFFER_START);
+
+    leaderOffer = new LeaderOffer();
+
+    leaderOffer.setHostName(hostName);
+    leaderOffer.setNodePath(zooKeeper.create(rootNodeName + "/" + "n_",
+        hostName.getBytes(), ZooDefs.Ids.OPEN_ACL_UNSAFE,
+        CreateMode.EPHEMERAL_SEQUENTIAL));
+
+    logger.debug("Created leader offer {}", leaderOffer);
+
+    dispatchEvent(EventType.OFFER_COMPLETE);
+  }
+
+  private void determineElectionStatus() throws KeeperException,
+      InterruptedException {
+
+    state = State.DETERMINE;
+    dispatchEvent(EventType.DETERMINE_START);
+
+    String[] components = leaderOffer.getNodePath().split("/");
+
+    leaderOffer.setId(Integer.valueOf(components[components.length - 1]
+        .substring("n_".length())));
+
+    List<LeaderOffer> leaderOffers = toLeaderOffers(zooKeeper.getChildren(
+        rootNodeName, false));
+
+    /*
+     * For each leader offer, find out where we fit in. If we're first, we
+     * become the leader. If we're not elected the leader, attempt to stat the
+     * offer just less than us. If they exist, watch for their failure, but if
+     * they don't, become the leader.
+     */
+    for (int i = 0; i < leaderOffers.size(); i++) {
+      LeaderOffer leaderOffer = leaderOffers.get(i);
+
+      if (leaderOffer.getId().equals(this.leaderOffer.getId())) {
+        logger.debug("There are {} leader offers. I am {} in line.",
+            leaderOffers.size(), i);
+
+        dispatchEvent(EventType.DETERMINE_COMPLETE);
+
+        if (i == 0) {
+          becomeLeader();
+        } else {
+          becomeReady(leaderOffers.get(i - 1));
+        }
+
+        /* Once we've figured out where we are, we're done. */
+        break;
+      }
+    }
+  }
+
+  private void becomeReady(LeaderOffer neighborLeaderOffer)
+      throws KeeperException, InterruptedException {
+    dispatchEvent(EventType.READY_START);
+
+    logger.info("{} not elected leader. Watching node:{}",
+        leaderOffer.getNodePath(), neighborLeaderOffer.getNodePath());
+
+    /*
+     * Make sure to pass an explicit Watcher because we could be sharing this
+     * zooKeeper instance with someone else.
+     */
+    Stat stat = zooKeeper.exists(neighborLeaderOffer.getNodePath(), this);
+
+    if (stat != null) {
+      logger.debug(
+          "We're behind {} in line and they're alive. Keeping an eye on them.",
+          neighborLeaderOffer.getNodePath());
+      state = State.READY;
+      dispatchEvent(EventType.READY_COMPLETE);
+    } else {
+      /*
+       * If the stat fails, the node has gone missing between the call to
+       * getChildren() and exists(). We need to try and become the leader.
+       */
+      logger
+          .info(
+              "We were behind {} but it looks like they died. Back to determination.",
+              neighborLeaderOffer.getNodePath());
+      determineElectionStatus();
+    }
+
+  }
+
+  private void becomeLeader() {
+    state = State.ELECTED;
+    dispatchEvent(EventType.ELECTED_START);
+
+    logger.info("Becoming leader with node:{}", leaderOffer.getNodePath());
+
+    dispatchEvent(EventType.ELECTED_COMPLETE);
+  }
+
+  private void becomeFailed(Exception e) {
+    logger.error("Failed in state {} - Exception:{}", state, e);
+
+    state = State.FAILED;
+    dispatchEvent(EventType.FAILED);
+  }
+
+  /**
+   * Fetch the (user supplied) hostname of the current leader. Note that by the
+   * time this method returns, state could have changed so do not depend on this
+   * to be strongly consistent. This method has to read all leader offers from
+   * ZooKeeper to deterime who the leader is (i.e. there is no caching) so
+   * consider the performance implications of frequent invocation. If there are
+   * no leader offers this method returns null.
+   * 
+   * @return hostname of the current leader
+   * @throws KeeperException
+   * @throws InterruptedException
+   */
+  public String getLeaderHostName() throws KeeperException,
+      InterruptedException {
+
+    List<LeaderOffer> leaderOffers = toLeaderOffers(zooKeeper.getChildren(
+        rootNodeName, false));
+
+    if (leaderOffers.size() > 0) {
+      return leaderOffers.get(0).getHostName();
+    }
+
+    return null;
+  }
+
+  private List<LeaderOffer> toLeaderOffers(List<String> strings)
+      throws KeeperException, InterruptedException {
+
+    List<LeaderOffer> leaderOffers = new ArrayList<LeaderOffer>(strings.size());
+
+    /*
+     * Turn each child of rootNodeName into a leader offer. This is a tuple of
+     * the sequence number and the node name.
+     */
+    for (String offer : strings) {
+      String hostName = new String(zooKeeper.getData(
+          rootNodeName + "/" + offer, false, null));
+
+      leaderOffers.add(new LeaderOffer(Integer.valueOf(offer.substring("n_"
+          .length())), rootNodeName + "/" + offer, hostName));
+    }
+
+    /*
+     * We sort leader offers by sequence number (which may not be zero-based or
+     * contiguous) and keep their paths handy for setting watches.
+     */
+    Collections.sort(leaderOffers, new LeaderOffer.IdComparator());
+
+    return leaderOffers;
+  }
+
+  @Override
+  public void process(WatchedEvent event) {
+    if (event.getType().equals(Watcher.Event.EventType.NodeDeleted)) {
+      if (!event.getPath().equals(leaderOffer.getNodePath())
+          && state != State.STOP) {
+        logger.debug(
+            "Node {} deleted. Need to run through the election process.",
+            event.getPath());
+        try {
+          determineElectionStatus();
+        } catch (KeeperException e) {
+          becomeFailed(e);
+        } catch (InterruptedException e) {
+          becomeFailed(e);
+        }
+      }
+    }
+  }
+
+  private void dispatchEvent(EventType eventType) {
+    logger.debug("Dispatching event:{}", eventType);
+
+    synchronized (listeners) {
+      if (listeners.size() > 0) {
+        for (LeaderElectionAware observer : listeners) {
+          observer.onElectionEvent(eventType);
+        }
+      }
+    }
+  }
+
+  /**
+   * Adds {@code listener} to the list of listeners who will receive events.
+   * 
+   * @param listener
+   */
+  public void addListener(LeaderElectionAware listener) {
+    listeners.add(listener);
+  }
+
+  /**
+   * Remove {@code listener} from the list of listeners who receive events.
+   * 
+   * @param listener
+   */
+  public void removeListener(LeaderElectionAware listener) {
+    listeners.remove(listener);
+  }
+
+  @Override
+  public String toString() {
+    return "{ state:" + state + " leaderOffer:" + leaderOffer + " zooKeeper:"
+        + zooKeeper + " hostName:" + hostName + " listeners:" + listeners
+        + " }";
+  }
+
+  /**
+   * <p>
+   * Gets the ZooKeeper root node to use for this service.
+   * </p>
+   * <p>
+   * For instance, a root node of {@code /mycompany/myservice} would be the
+   * parent of all leader offers for this service. Obviously all processes that
+   * wish to contend for leader status need to use the same root node. Note: We
+   * assume this node already exists.
+   * </p>
+   * 
+   * @return a znode path
+   */
+  public String getRootNodeName() {
+    return rootNodeName;
+  }
+
+  /**
+   * <p>
+   * Sets the ZooKeeper root node to use for this service.
+   * </p>
+   * <p>
+   * For instance, a root node of {@code /mycompany/myservice} would be the
+   * parent of all leader offers for this service. Obviously all processes that
+   * wish to contend for leader status need to use the same root node. Note: We
+   * assume this node already exists.
+   * </p>
+   */
+  public void setRootNodeName(String rootNodeName) {
+    this.rootNodeName = rootNodeName;
+  }
+
+  /**
+   * The {@link ZooKeeper} instance to use for all operations. Provided this
+   * overrides any connectString or sessionTimeout set.
+   */
+  public ZooKeeper getZooKeeper() {
+    return zooKeeper;
+  }
+
+  public void setZooKeeper(ZooKeeper zooKeeper) {
+    this.zooKeeper = zooKeeper;
+  }
+
+  /**
+   * The hostname of this process. Mostly used as a convenience for logging and
+   * to respond to {@link #getLeaderHostName()} requests.
+   */
+  public String getHostName() {
+    return hostName;
+  }
+
+  public void setHostName(String hostName) {
+    this.hostName = hostName;
+  }
+
+  /**
+   * The type of event.
+   */
+  public static enum EventType {
+    START, OFFER_START, OFFER_COMPLETE, DETERMINE_START, DETERMINE_COMPLETE, ELECTED_START, ELECTED_COMPLETE, READY_START, READY_COMPLETE, FAILED, STOP_START, STOP_COMPLETE,
+  }
+
+  /**
+   * The internal state of the election support service.
+   */
+  public static enum State {
+    START, OFFER, DETERMINE, ELECTED, READY, FAILED, STOP
+  }
+}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderOffer.java
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderOffer.java b/zookeeper-recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderOffer.java
new file mode 100644
index 0000000..188a6d5
--- /dev/null
+++ b/zookeeper-recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderOffer.java
@@ -0,0 +1,84 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.zookeeper.recipes.leader;
+
+import java.util.Comparator;
+
+/**
+ * A leader offer is a numeric id / path pair. The id is the sequential node id
+ * assigned by ZooKeeper where as the path is the absolute path to the ZNode.
+ */
+public class LeaderOffer {
+
+  private Integer id;
+  private String nodePath;
+  private String hostName;
+
+  public LeaderOffer() {
+    // Default constructor
+  }
+
+  public LeaderOffer(Integer id, String nodePath, String hostName) {
+    this.id = id;
+    this.nodePath = nodePath;
+    this.hostName = hostName;
+  }
+
+  @Override
+  public String toString() {
+    return "{ id:" + id + " nodePath:" + nodePath + " hostName:" + hostName
+        + " }";
+  }
+
+  public Integer getId() {
+    return id;
+  }
+
+  public void setId(Integer id) {
+    this.id = id;
+  }
+
+  public String getNodePath() {
+    return nodePath;
+  }
+
+  public void setNodePath(String nodePath) {
+    this.nodePath = nodePath;
+  }
+
+  public String getHostName() {
+    return hostName;
+  }
+
+  public void setHostName(String hostName) {
+    this.hostName = hostName;
+  }
+
+  /**
+   * Compare two instances of {@link LeaderOffer} using only the {code}id{code}
+   * member.
+   */
+  public static class IdComparator implements Comparator<LeaderOffer> {
+
+    @Override
+    public int compare(LeaderOffer o1, LeaderOffer o2) {
+      return o1.getId().compareTo(o2.getId());
+    }
+
+  }
+
+}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/election/test/org/apache/zookeeper/recipes/leader/LeaderElectionSupportTest.java
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/election/test/org/apache/zookeeper/recipes/leader/LeaderElectionSupportTest.java b/zookeeper-recipes/election/test/org/apache/zookeeper/recipes/leader/LeaderElectionSupportTest.java
new file mode 100644
index 0000000..571d47f
--- /dev/null
+++ b/zookeeper-recipes/election/test/org/apache/zookeeper/recipes/leader/LeaderElectionSupportTest.java
@@ -0,0 +1,249 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.zookeeper.recipes.leader;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import junit.framework.Assert;
+
+import org.apache.zookeeper.CreateMode;
+import org.apache.zookeeper.KeeperException;
+import org.apache.zookeeper.ZooDefs;
+import org.apache.zookeeper.ZooKeeper;
+import org.apache.zookeeper.test.ClientBase;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class LeaderElectionSupportTest extends ClientBase {
+
+  private static final Logger logger = LoggerFactory
+      .getLogger(LeaderElectionSupportTest.class);
+  private static final String testRootNode = "/" + System.currentTimeMillis()
+      + "_";
+
+  private ZooKeeper zooKeeper;
+
+  @Before
+  public void setUp() throws Exception {
+    super.setUp();
+
+    zooKeeper = createClient();
+
+    zooKeeper.create(testRootNode + Thread.currentThread().getId(),
+        new byte[0], ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
+  }
+
+  @After
+  public void tearDown() throws Exception {
+    if (zooKeeper != null) {
+      zooKeeper.delete(testRootNode + Thread.currentThread().getId(), -1);
+    }
+
+    super.tearDown();
+  }
+
+  @Test
+  public void testNode() throws IOException, InterruptedException,
+      KeeperException {
+
+    LeaderElectionSupport electionSupport = createLeaderElectionSupport();
+
+    electionSupport.start();
+    Thread.sleep(3000);
+    electionSupport.stop();
+  }
+
+  @Test
+  public void testNodes3() throws IOException, InterruptedException,
+      KeeperException {
+
+    int testIterations = 3;
+    final CountDownLatch latch = new CountDownLatch(testIterations);
+    final AtomicInteger failureCounter = new AtomicInteger();
+
+    for (int i = 0; i < testIterations; i++) {
+      runElectionSupportThread(latch, failureCounter);
+    }
+
+    Assert.assertEquals(0, failureCounter.get());
+
+    if (!latch.await(10, TimeUnit.SECONDS)) {
+      logger
+          .info(
+              "Waited for all threads to start, but timed out. We had {} failures.",
+              failureCounter);
+    }
+  }
+
+  @Test
+  public void testNodes9() throws IOException, InterruptedException,
+      KeeperException {
+
+    int testIterations = 9;
+    final CountDownLatch latch = new CountDownLatch(testIterations);
+    final AtomicInteger failureCounter = new AtomicInteger();
+
+    for (int i = 0; i < testIterations; i++) {
+      runElectionSupportThread(latch, failureCounter);
+    }
+
+    Assert.assertEquals(0, failureCounter.get());
+
+    if (!latch.await(10, TimeUnit.SECONDS)) {
+      logger
+          .info(
+              "Waited for all threads to start, but timed out. We had {} failures.",
+              failureCounter);
+    }
+  }
+
+  @Test
+  public void testNodes20() throws IOException, InterruptedException,
+      KeeperException {
+
+    int testIterations = 20;
+    final CountDownLatch latch = new CountDownLatch(testIterations);
+    final AtomicInteger failureCounter = new AtomicInteger();
+
+    for (int i = 0; i < testIterations; i++) {
+      runElectionSupportThread(latch, failureCounter);
+    }
+
+    Assert.assertEquals(0, failureCounter.get());
+
+    if (!latch.await(10, TimeUnit.SECONDS)) {
+      logger
+          .info(
+              "Waited for all threads to start, but timed out. We had {} failures.",
+              failureCounter);
+    }
+  }
+
+  @Test
+  public void testNodes100() throws IOException, InterruptedException,
+      KeeperException {
+
+    int testIterations = 100;
+    final CountDownLatch latch = new CountDownLatch(testIterations);
+    final AtomicInteger failureCounter = new AtomicInteger();
+
+    for (int i = 0; i < testIterations; i++) {
+      runElectionSupportThread(latch, failureCounter);
+    }
+
+    Assert.assertEquals(0, failureCounter.get());
+
+    if (!latch.await(20, TimeUnit.SECONDS)) {
+      logger
+          .info(
+              "Waited for all threads to start, but timed out. We had {} failures.",
+              failureCounter);
+    }
+  }
+
+  @Test
+  public void testOfferShuffle() throws InterruptedException {
+    int testIterations = 10;
+    final CountDownLatch latch = new CountDownLatch(testIterations);
+    final AtomicInteger failureCounter = new AtomicInteger();
+    List<Thread> threads = new ArrayList<Thread>(testIterations);
+
+    for (int i = 1; i <= testIterations; i++) {
+      threads.add(runElectionSupportThread(latch, failureCounter,
+          Math.min(i * 1200, 10000)));
+    }
+
+    if (!latch.await(60, TimeUnit.SECONDS)) {
+      logger
+          .info(
+              "Waited for all threads to start, but timed out. We had {} failures.",
+              failureCounter);
+    }
+  }
+
+  @Test
+  public void testGetLeaderHostName() throws KeeperException,
+      InterruptedException {
+
+    LeaderElectionSupport electionSupport = createLeaderElectionSupport();
+
+    electionSupport.start();
+
+    // Sketchy: We assume there will be a leader (probably us) in 3 seconds.
+    Thread.sleep(3000);
+
+    String leaderHostName = electionSupport.getLeaderHostName();
+
+    Assert.assertNotNull(leaderHostName);
+    Assert.assertEquals("foohost", leaderHostName);
+
+    electionSupport.stop();
+  }
+
+  private LeaderElectionSupport createLeaderElectionSupport() {
+    LeaderElectionSupport electionSupport = new LeaderElectionSupport();
+
+    electionSupport.setZooKeeper(zooKeeper);
+    electionSupport.setRootNodeName(testRootNode
+        + Thread.currentThread().getId());
+    electionSupport.setHostName("foohost");
+
+    return electionSupport;
+  }
+
+  private Thread runElectionSupportThread(final CountDownLatch latch,
+      final AtomicInteger failureCounter) {
+    return runElectionSupportThread(latch, failureCounter, 3000);
+  }
+
+  private Thread runElectionSupportThread(final CountDownLatch latch,
+      final AtomicInteger failureCounter, final long sleepDuration) {
+
+    final LeaderElectionSupport electionSupport = createLeaderElectionSupport();
+
+    Thread t = new Thread() {
+
+      @Override
+      public void run() {
+        try {
+          electionSupport.start();
+          Thread.sleep(sleepDuration);
+          electionSupport.stop();
+
+          latch.countDown();
+        } catch (Exception e) {
+          logger.warn("Failed to run leader election due to: {}",
+              e.getMessage());
+          failureCounter.incrementAndGet();
+        }
+      }
+    };
+
+    t.start();
+
+    return t;
+  }
+
+}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/README.txt
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/README.txt b/zookeeper-recipes/lock/README.txt
new file mode 100644
index 0000000..1fc4fbf
--- /dev/null
+++ b/zookeeper-recipes/lock/README.txt
@@ -0,0 +1,28 @@
+<!--
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You under the Apache License, Version 2.0
+   (the "License"); you may not use this file except in compliance with
+   the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+-->
+
+1) This lock interface recipe implements the lock recipe
+mentioned in ../../../docs/recipes.[html,pdf].
+
+2) To compile the lock java recipe you can just run ant jar from 
+this directory. For compiling the c libarary go to src/c and read
+the INSTALLATION instructions. 
+Please report any bugs on the jira 
+
+http://issues.apache.org/jira/browse/ZOOKEEPER
+
+  

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/build.xml
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/build.xml b/zookeeper-recipes/lock/build.xml
new file mode 100644
index 0000000..841cc01
--- /dev/null
+++ b/zookeeper-recipes/lock/build.xml
@@ -0,0 +1,128 @@
+<!--
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You under the Apache License, Version 2.0
+   (the "License"); you may not use this file except in compliance with
+   the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+-->
+
+<project name="lock" default="jar">
+  <import file="../build-recipes.xml"/>
+    <property name="test.main.classes" value="${zk.root}/build/test/classes"/>
+    <property name="test.build.dir" value="${build.test}" />
+    <property name="test.src.dir" value="test"/>
+    <property name="test.log.dir" value="${test.build.dir}/logs" />
+    <property name="test.data.dir" value="${test.build.dir}/data" />
+    <property name="test.data.upgrade.dir" value="${test.data.dir}/upgrade" />
+    <property name="test.tmp.dir" value="${test.build.dir}/tmp" />
+    <property name="test.output" value="no" />
+    <property name="test.timeout" value="900000" />
+    <property name="test.junit.output.format" value="plain" />
+    <property name="test.junit.fork.mode" value="perTest" />
+    <property name="test.junit.printsummary" value="yes" />
+    <property name="test.junit.haltonfailure" value="no" />
+    <property name="test.junit.maxmem" value="512m" />
+
+  <target name="setjarname">
+    <property name="jarname"
+              value="${build.dir}/zookeeper-${version}-recipes-${name}.jar"/>
+  </target>
+
+  <!-- Override jar target to specify main class -->
+  <target name="jar" depends="checkMainCompiled, setjarname, compile">
+    <echo message="recipes: ${name}"/>
+
+    <jar jarfile="${jarname}">
+      <fileset file="${zk.root}/LICENSE.txt" />
+      <fileset dir="${build.classes}"/>
+      <fileset dir="${build.test}"/>
+    </jar>
+  </target>
+
+	<target name="test" depends="compile-test,test-init,test-category,junit.run" />
+
+	<target name="compile-test" depends="compile">
+  		<property name="target.jdk" value="${ant.java.version}" />	
+		<property name="src.test.local" location="${basedir}/test" />
+		<mkdir dir="${build.test}"/>
+		<javac srcdir="${src.test.local}" 
+			destdir="${build.test}" 
+			target="${target.jdk}" 
+			debug="on" >
+			<classpath refid="classpath" />
+                        <classpath>
+                        <pathelement path="${test.main.classes}"/>
+                        </classpath>
+		</javac>
+	</target>
+	
+    <target name="test-init" depends="jar,compile-test">
+        <delete dir="${test.log.dir}" />
+        <delete dir="${test.tmp.dir}" />
+        <delete dir="${test.data.dir}" />
+        <mkdir dir="${test.log.dir}" />
+        <mkdir dir="${test.tmp.dir}" />
+        <mkdir dir="${test.data.dir}" />
+    </target>
+
+	<target name="test-category">
+         <property name="test.category" value=""/>
+    </target>
+
+	<target name="junit.run">
+		<echo message="${test.src.dir}" />
+        <junit showoutput="${test.output}"
+               printsummary="${test.junit.printsummary}"
+               haltonfailure="${test.junit.haltonfailure}"
+               fork="yes"
+               forkmode="${test.junit.fork.mode}"
+               maxmemory="${test.junit.maxmem}"
+               dir="${basedir}" timeout="${test.timeout}"
+               errorProperty="tests.failed" failureProperty="tests.failed">
+          <sysproperty key="build.test.dir" value="${test.tmp.dir}" />
+          <sysproperty key="test.data.dir" value="${test.data.dir}" />
+          <sysproperty key="log4j.configuration"
+                    value="file:${basedir}/conf/log4j.properties" />
+          <classpath refid="classpath"/>
+          <classpath>
+             <pathelement path="${build.test}" />
+             <pathelement path="${test.main.classes}"/>
+          </classpath>
+          <formatter type="${test.junit.output.format}" />
+          <batchtest todir="${test.log.dir}" unless="testcase">
+              <fileset dir="${test.src.dir}"
+                     includes="**/*${test.category}Test.java"/>
+          </batchtest>
+          <batchtest todir="${test.log.dir}" if="testcase">
+              <fileset dir="${test.src.dir}" includes="**/${testcase}.java"/>
+          </batchtest>
+       </junit>
+            <fail if="tests.failed">Tests failed!</fail>
+    </target>
+
+  <target name="package" depends="jar, zookeeperbuildrecipes.package"
+          unless="skip.recipes">
+
+    <copy file="${basedir}/build.xml" todir="${dist.dir}${package.share}/recipes/${name}"/>
+
+    <mkdir dir="${dist.dir}${package.share}/recipes/${name}/test"/>
+    <copy todir="${dist.dir}${package.share}/recipes/${name}/test">
+      <fileset dir="${basedir}/test"/>
+    </copy>
+    <mkdir dir="${dist.dir}${package.share}/recipes/${name}/src"/>
+    <copy todir="${dist.dir}${package.share}/recipes/${name}/src">
+      <fileset dir="${basedir}/src"/>
+    </copy>
+  </target>
+
+</project>
+

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/src/c/INSTALL
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/src/c/INSTALL b/zookeeper-recipes/lock/src/c/INSTALL
new file mode 100644
index 0000000..5458714
--- /dev/null
+++ b/zookeeper-recipes/lock/src/c/INSTALL
@@ -0,0 +1,234 @@
+Installation Instructions
+*************************
+
+Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005,
+2006 Free Software Foundation, Inc.
+
+This file is free documentation; the Free Software Foundation gives
+unlimited permission to copy, distribute and modify it.
+
+Basic Installation
+==================
+
+Briefly, the shell commands `./configure; make; make install' should
+configure, build, and install this package.  The following
+more-detailed instructions are generic; see the `README' file for
+instructions specific to this package.
+
+   The `configure' shell script attempts to guess correct values for
+various system-dependent variables used during compilation.  It uses
+those values to create a `Makefile' in each directory of the package.
+It may also create one or more `.h' files containing system-dependent
+definitions.  Finally, it creates a shell script `config.status' that
+you can run in the future to recreate the current configuration, and a
+file `config.log' containing compiler output (useful mainly for
+debugging `configure').
+
+   It can also use an optional file (typically called `config.cache'
+and enabled with `--cache-file=config.cache' or simply `-C') that saves
+the results of its tests to speed up reconfiguring.  Caching is
+disabled by default to prevent problems with accidental use of stale
+cache files.
+
+   If you need to do unusual things to compile the package, please try
+to figure out how `configure' could check whether to do them, and mail
+diffs or instructions to the address given in the `README' so they can
+be considered for the next release.  If you are using the cache, and at
+some point `config.cache' contains results you don't want to keep, you
+may remove or edit it.
+
+   The file `configure.ac' (or `configure.in') is used to create
+`configure' by a program called `autoconf'.  You need `configure.ac' if
+you want to change it or regenerate `configure' using a newer version
+of `autoconf'.
+
+The simplest way to compile this package is:
+
+  1. `cd' to the directory containing the package's source code and type
+     `./configure' to configure the package for your system.
+
+     Running `configure' might take a while.  While running, it prints
+     some messages telling which features it is checking for.
+
+  2. Type `make' to compile the package.
+
+  3. Optionally, type `make check' to run any self-tests that come with
+     the package.
+
+  4. Type `make install' to install the programs and any data files and
+     documentation.
+
+  5. You can remove the program binaries and object files from the
+     source code directory by typing `make clean'.  To also remove the
+     files that `configure' created (so you can compile the package for
+     a different kind of computer), type `make distclean'.  There is
+     also a `make maintainer-clean' target, but that is intended mainly
+     for the package's developers.  If you use it, you may have to get
+     all sorts of other programs in order to regenerate files that came
+     with the distribution.
+
+Compilers and Options
+=====================
+
+Some systems require unusual options for compilation or linking that the
+`configure' script does not know about.  Run `./configure --help' for
+details on some of the pertinent environment variables.
+
+   You can give `configure' initial values for configuration parameters
+by setting variables in the command line or in the environment.  Here
+is an example:
+
+     ./configure CC=c99 CFLAGS=-g LIBS=-lposix
+
+   *Note Defining Variables::, for more details.
+
+Compiling For Multiple Architectures
+====================================
+
+You can compile the package for more than one kind of computer at the
+same time, by placing the object files for each architecture in their
+own directory.  To do this, you can use GNU `make'.  `cd' to the
+directory where you want the object files and executables to go and run
+the `configure' script.  `configure' automatically checks for the
+source code in the directory that `configure' is in and in `..'.
+
+   With a non-GNU `make', it is safer to compile the package for one
+architecture at a time in the source code directory.  After you have
+installed the package for one architecture, use `make distclean' before
+reconfiguring for another architecture.
+
+Installation Names
+==================
+
+By default, `make install' installs the package's commands under
+`/usr/local/bin', include files under `/usr/local/include', etc.  You
+can specify an installation prefix other than `/usr/local' by giving
+`configure' the option `--prefix=PREFIX'.
+
+   You can specify separate installation prefixes for
+architecture-specific files and architecture-independent files.  If you
+pass the option `--exec-prefix=PREFIX' to `configure', the package uses
+PREFIX as the prefix for installing programs and libraries.
+Documentation and other data files still use the regular prefix.
+
+   In addition, if you use an unusual directory layout you can give
+options like `--bindir=DIR' to specify different values for particular
+kinds of files.  Run `configure --help' for a list of the directories
+you can set and what kinds of files go in them.
+
+   If the package supports it, you can cause programs to be installed
+with an extra prefix or suffix on their names by giving `configure' the
+option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
+
+Optional Features
+=================
+
+Some packages pay attention to `--enable-FEATURE' options to
+`configure', where FEATURE indicates an optional part of the package.
+They may also pay attention to `--with-PACKAGE' options, where PACKAGE
+is something like `gnu-as' or `x' (for the X Window System).  The
+`README' should mention any `--enable-' and `--with-' options that the
+package recognizes.
+
+   For packages that use the X Window System, `configure' can usually
+find the X include and library files automatically, but if it doesn't,
+you can use the `configure' options `--x-includes=DIR' and
+`--x-libraries=DIR' to specify their locations.
+
+Specifying the System Type
+==========================
+
+There may be some features `configure' cannot figure out automatically,
+but needs to determine by the type of machine the package will run on.
+Usually, assuming the package is built to be run on the _same_
+architectures, `configure' can figure that out, but if it prints a
+message saying it cannot guess the machine type, give it the
+`--build=TYPE' option.  TYPE can either be a short name for the system
+type, such as `sun4', or a canonical name which has the form:
+
+     CPU-COMPANY-SYSTEM
+
+where SYSTEM can have one of these forms:
+
+     OS KERNEL-OS
+
+   See the file `config.sub' for the possible values of each field.  If
+`config.sub' isn't included in this package, then this package doesn't
+need to know the machine type.
+
+   If you are _building_ compiler tools for cross-compiling, you should
+use the option `--target=TYPE' to select the type of system they will
+produce code for.
+
+   If you want to _use_ a cross compiler, that generates code for a
+platform different from the build platform, you should specify the
+"host" platform (i.e., that on which the generated programs will
+eventually be run) with `--host=TYPE'.
+
+Sharing Defaults
+================
+
+If you want to set default values for `configure' scripts to share, you
+can create a site shell script called `config.site' that gives default
+values for variables like `CC', `cache_file', and `prefix'.
+`configure' looks for `PREFIX/share/config.site' if it exists, then
+`PREFIX/etc/config.site' if it exists.  Or, you can set the
+`CONFIG_SITE' environment variable to the location of the site script.
+A warning: not all `configure' scripts look for a site script.
+
+Defining Variables
+==================
+
+Variables not defined in a site shell script can be set in the
+environment passed to `configure'.  However, some packages may run
+configure again during the build, and the customized values of these
+variables may be lost.  In order to avoid this problem, you should set
+them in the `configure' command line, using `VAR=value'.  For example:
+
+     ./configure CC=/usr/local2/bin/gcc
+
+causes the specified `gcc' to be used as the C compiler (unless it is
+overridden in the site shell script).
+
+Unfortunately, this technique does not work for `CONFIG_SHELL' due to
+an Autoconf bug.  Until the bug is fixed you can use this workaround:
+
+     CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash
+
+`configure' Invocation
+======================
+
+`configure' recognizes the following options to control how it operates.
+
+`--help'
+`-h'
+     Print a summary of the options to `configure', and exit.
+
+`--version'
+`-V'
+     Print the version of Autoconf used to generate the `configure'
+     script, and exit.
+
+`--cache-file=FILE'
+     Enable the cache: use and save the results of the tests in FILE,
+     traditionally `config.cache'.  FILE defaults to `/dev/null' to
+     disable caching.
+
+`--config-cache'
+`-C'
+     Alias for `--cache-file=config.cache'.
+
+`--quiet'
+`--silent'
+`-q'
+     Do not print messages saying which checks are being made.  To
+     suppress all normal output, redirect it to `/dev/null' (any error
+     messages will still be shown).
+
+`--srcdir=DIR'
+     Look for the package's source code in directory DIR.  Usually
+     `configure' can determine that directory automatically.
+
+`configure' also accepts some other, not widely useful, options.  Run
+`configure --help' for more details.
+

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/src/c/LICENSE
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/src/c/LICENSE b/zookeeper-recipes/lock/src/c/LICENSE
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/zookeeper-recipes/lock/src/c/LICENSE
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
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+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
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+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
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+      "Source" form shall mean the preferred form for making modifications,
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+
+      "Object" form shall mean any form resulting from mechanical
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+      "Work" shall mean the work of authorship, whether in Source or
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+      "Derivative Works" shall mean any work, whether in Source or Object
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+      "Contribution" shall mean any work of authorship, including
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+      You may add Your own copyright statement to Your modifications and
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+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
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+   6. Trademarks. This License does not grant permission to use the trade
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+   7. Disclaimer of Warranty. Unless required by applicable law or
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+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
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+   Licensed under the Apache License, Version 2.0 (the "License");
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+
+   Unless required by applicable law or agreed to in writing, software
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http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/src/c/Makefile.am
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/src/c/Makefile.am b/zookeeper-recipes/lock/src/c/Makefile.am
new file mode 100644
index 0000000..9b36b43
--- /dev/null
+++ b/zookeeper-recipes/lock/src/c/Makefile.am
@@ -0,0 +1,46 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+include $(top_srcdir)/aminclude.am
+
+AM_CFLAGS = -Wall -fPIC -I${ZOOKEEPER_PATH}/include -I${ZOOKEEPER_PATH}/generated \
+  -I$(top_srcdir)/include -I/usr/include 
+AM_CPPFLAGS = -Wall -I${ZOOKEEPER_PATH}/include -I${ZOOKEEPER_PATH}/generated\
+  -I${top_srcdir}/include -I/usr/include
+EXTRA_DIST = LICENSE
+lib_LTLIBRARIES = libzoolock.la
+libzoolock_la_SOURCES = src/zoo_lock.c include/zoo_lock.h
+libzoolock_la_CPPFLAGS = -DDLOPEN_MODULE
+libzoolock_la_LDFLAGS = -version-info 0:1:0
+
+#run the tests now
+
+TEST_SOURCES = tests/TestDriver.cc tests/TestClient.cc tests/Util.cc 
+
+
+check_PROGRAMS = zklocktest
+nodist_zklocktest_SOURCES = ${TEST_SOURCES}
+zklocktest_LDADD =  ${ZOOKEEPER_LD} libzoolock.la -lpthread  ${CPPUNIT_LIBS}
+zklocktest_CXXFLAGS = -DUSE_STATIC_LIB ${CPPUNIT_CFLAGS}
+
+run-check: check
+	./zklocktest ${TEST_OPTIONS}
+
+clean-local: clean-check
+	${RM} ${DX_CLEANFILES}
+
+clean-check:
+	${RM} ${nodist_zklocktest_OBJECTS} 

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/src/c/README.txt
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/src/c/README.txt b/zookeeper-recipes/lock/src/c/README.txt
new file mode 100644
index 0000000..326bba8
--- /dev/null
+++ b/zookeeper-recipes/lock/src/c/README.txt
@@ -0,0 +1,28 @@
+                     Zookeeper C lock client library 
+
+
+INSTALLATION
+
+If you're building the client from a source checkout you need to
+follow the steps outlined below. If you're building from a release
+tar downloaded from Apache please skip to step 2.
+
+1) make sure that you compile the main zookeeper c client library.
+ 
+2) change directory to src/recipes/lock/src/c 
+    and do a "autoreconf -if" to bootstrap
+   autoconf, automake and libtool. Please make sure you have autoconf
+   version 2.59 or greater installed.
+3) do a "./configure [OPTIONS]" to generate the makefile. See INSTALL
+   for general information about running configure.
+
+4) do a "make" or "make install" to build the libraries and install them. 
+   Alternatively, you can also build and run a unit test suite (and
+   you probably should).  Please make sure you have cppunit-1.10.x or
+   higher installed before you execute step 4.  Once ./configure has
+   finished, do a "make run-check". It will build the libraries, build
+   the tests and run them.
+5) to generate doxygen documentation do a "make doxygen-doc". All
+   documentations will be placed to a new subfolder named docs. By
+   default only HTML documentation is generated.  For information on
+   other document formats please use "./configure --help"

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/src/c/acinclude.m4
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/src/c/acinclude.m4 b/zookeeper-recipes/lock/src/c/acinclude.m4
new file mode 100644
index 0000000..d0041d8
--- /dev/null
+++ b/zookeeper-recipes/lock/src/c/acinclude.m4
@@ -0,0 +1,312 @@
+# This file is part of Autoconf.                       -*- Autoconf -*-
+
+# Copyright (C) 2004 Oren Ben-Kiki
+# This file is distributed under the same terms as the Autoconf macro files.
+
+# Generate automatic documentation using Doxygen. Works in concert with the
+# aminclude.m4 file and a compatible doxygen configuration file. Defines the
+# following public macros:
+#
+# DX_???_FEATURE(ON|OFF) - control the default setting fo a Doxygen feature.
+# Supported features are 'DOXYGEN' itself, 'DOT' for generating graphics,
+# 'HTML' for plain HTML, 'CHM' for compressed HTML help (for MS users), 'CHI'
+# for generating a seperate .chi file by the .chm file, and 'MAN', 'RTF',
+# 'XML', 'PDF' and 'PS' for the appropriate output formats. The environment
+# variable DOXYGEN_PAPER_SIZE may be specified to override the default 'a4wide'
+# paper size.
+#
+# By default, HTML, PDF and PS documentation is generated as this seems to be
+# the most popular and portable combination. MAN pages created by Doxygen are
+# usually problematic, though by picking an appropriate subset and doing some
+# massaging they might be better than nothing. CHM and RTF are specific for MS
+# (note that you can't generate both HTML and CHM at the same time). The XML is
+# rather useless unless you apply specialized post-processing to it.
+#
+# The macro mainly controls the default state of the feature. The use can
+# override the default by specifying --enable or --disable. The macros ensure
+# that contradictory flags are not given (e.g., --enable-doxygen-html and
+# --enable-doxygen-chm, --enable-doxygen-anything with --disable-doxygen, etc.)
+# Finally, each feature will be automatically disabled (with a warning) if the
+# required programs are missing.
+#
+# Once all the feature defaults have been specified, call DX_INIT_DOXYGEN with
+# the following parameters: a one-word name for the project for use as a
+# filename base etc., an optional configuration file name (the default is
+# 'Doxyfile', the same as Doxygen's default), and an optional output directory
+# name (the default is 'doxygen-doc').
+
+## ----------##
+## Defaults. ##
+## ----------##
+
+DX_ENV=""
+AC_DEFUN([DX_FEATURE_doc],  ON)
+AC_DEFUN([DX_FEATURE_dot],  ON)
+AC_DEFUN([DX_FEATURE_man],  OFF)
+AC_DEFUN([DX_FEATURE_html], ON)
+AC_DEFUN([DX_FEATURE_chm],  OFF)
+AC_DEFUN([DX_FEATURE_chi],  OFF)
+AC_DEFUN([DX_FEATURE_rtf],  OFF)
+AC_DEFUN([DX_FEATURE_xml],  OFF)
+AC_DEFUN([DX_FEATURE_pdf],  ON)
+AC_DEFUN([DX_FEATURE_ps],   ON)
+
+## --------------- ##
+## Private macros. ##
+## --------------- ##
+
+# DX_ENV_APPEND(VARIABLE, VALUE)
+# ------------------------------
+# Append VARIABLE="VALUE" to DX_ENV for invoking doxygen.
+AC_DEFUN([DX_ENV_APPEND], [AC_SUBST([DX_ENV], ["$DX_ENV $1='$2'"])])
+
+# DX_DIRNAME_EXPR
+# ---------------
+# Expand into a shell expression prints the directory part of a path.
+AC_DEFUN([DX_DIRNAME_EXPR],
+         [[expr ".$1" : '\(\.\)[^/]*$' \| "x$1" : 'x\(.*\)/[^/]*$']])
+
+# DX_IF_FEATURE(FEATURE, IF-ON, IF-OFF)
+# -------------------------------------
+# Expands according to the M4 (static) status of the feature.
+AC_DEFUN([DX_IF_FEATURE], [ifelse(DX_FEATURE_$1, ON, [$2], [$3])])
+
+# DX_REQUIRE_PROG(VARIABLE, PROGRAM)
+# ----------------------------------
+# Require the specified program to be found for the DX_CURRENT_FEATURE to work.
+AC_DEFUN([DX_REQUIRE_PROG], [
+AC_PATH_TOOL([$1], [$2])
+if test "$DX_FLAG_$[DX_CURRENT_FEATURE$$1]" = 1; then
+    AC_MSG_WARN([$2 not found - will not DX_CURRENT_DESCRIPTION])
+    AC_SUBST([DX_FLAG_]DX_CURRENT_FEATURE, 0)
+fi
+])
+
+# DX_TEST_FEATURE(FEATURE)
+# ------------------------
+# Expand to a shell expression testing whether the feature is active.
+AC_DEFUN([DX_TEST_FEATURE], [test "$DX_FLAG_$1" = 1])
+
+# DX_CHECK_DEPEND(REQUIRED_FEATURE, REQUIRED_STATE)
+# -------------------------------------------------
+# Verify that a required features has the right state before trying to turn on
+# the DX_CURRENT_FEATURE.
+AC_DEFUN([DX_CHECK_DEPEND], [
+test "$DX_FLAG_$1" = "$2" \
+|| AC_MSG_ERROR([doxygen-DX_CURRENT_FEATURE ifelse([$2], 1,
+                            requires, contradicts) doxygen-DX_CURRENT_FEATURE])
+])
+
+# DX_CLEAR_DEPEND(FEATURE, REQUIRED_FEATURE, REQUIRED_STATE)
+# ----------------------------------------------------------
+# Turn off the DX_CURRENT_FEATURE if the required feature is off.
+AC_DEFUN([DX_CLEAR_DEPEND], [
+test "$DX_FLAG_$1" = "$2" || AC_SUBST([DX_FLAG_]DX_CURRENT_FEATURE, 0)
+])
+
+# DX_FEATURE_ARG(FEATURE, DESCRIPTION,
+#                CHECK_DEPEND, CLEAR_DEPEND,
+#                REQUIRE, DO-IF-ON, DO-IF-OFF)
+# --------------------------------------------
+# Parse the command-line option controlling a feature. CHECK_DEPEND is called
+# if the user explicitly turns the feature on (and invokes DX_CHECK_DEPEND),
+# otherwise CLEAR_DEPEND is called to turn off the default state if a required
+# feature is disabled (using DX_CLEAR_DEPEND). REQUIRE performs additional
+# requirement tests (DX_REQUIRE_PROG). Finally, an automake flag is set and
+# DO-IF-ON or DO-IF-OFF are called according to the final state of the feature.
+AC_DEFUN([DX_ARG_ABLE], [
+    AC_DEFUN([DX_CURRENT_FEATURE], [$1])
+    AC_DEFUN([DX_CURRENT_DESCRIPTION], [$2])
+    AC_ARG_ENABLE(doxygen-$1,
+                  [AS_HELP_STRING(DX_IF_FEATURE([$1], [--disable-doxygen-$1],
+                                                      [--enable-doxygen-$1]),
+                                  DX_IF_FEATURE([$1], [don't $2], [$2]))],
+                  [
+case "$enableval" in
+#(
+y|Y|yes|Yes|YES)
+    AC_SUBST([DX_FLAG_$1], 1)
+    $3
+;; #(
+n|N|no|No|NO)
+    AC_SUBST([DX_FLAG_$1], 0)
+;; #(
+*)
+    AC_MSG_ERROR([invalid value '$enableval' given to doxygen-$1])
+;;
+esac
+], [
+AC_SUBST([DX_FLAG_$1], [DX_IF_FEATURE([$1], 1, 0)])
+$4
+])
+if DX_TEST_FEATURE([$1]); then
+    $5
+    :
+fi
+if DX_TEST_FEATURE([$1]); then
+    AM_CONDITIONAL(DX_COND_$1, :)
+    $6
+    :
+else
+    AM_CONDITIONAL(DX_COND_$1, false)
+    $7
+    :
+fi
+])
+
+## -------------- ##
+## Public macros. ##
+## -------------- ##
+
+# DX_XXX_FEATURE(DEFAULT_STATE)
+# -----------------------------
+AC_DEFUN([DX_DOXYGEN_FEATURE], [AC_DEFUN([DX_FEATURE_doc],  [$1])])
+AC_DEFUN([DX_MAN_FEATURE],     [AC_DEFUN([DX_FEATURE_man],  [$1])])
+AC_DEFUN([DX_HTML_FEATURE],    [AC_DEFUN([DX_FEATURE_html], [$1])])
+AC_DEFUN([DX_CHM_FEATURE],     [AC_DEFUN([DX_FEATURE_chm],  [$1])])
+AC_DEFUN([DX_CHI_FEATURE],     [AC_DEFUN([DX_FEATURE_chi],  [$1])])
+AC_DEFUN([DX_RTF_FEATURE],     [AC_DEFUN([DX_FEATURE_rtf],  [$1])])
+AC_DEFUN([DX_XML_FEATURE],     [AC_DEFUN([DX_FEATURE_xml],  [$1])])
+AC_DEFUN([DX_XML_FEATURE],     [AC_DEFUN([DX_FEATURE_xml],  [$1])])
+AC_DEFUN([DX_PDF_FEATURE],     [AC_DEFUN([DX_FEATURE_pdf],  [$1])])
+AC_DEFUN([DX_PS_FEATURE],      [AC_DEFUN([DX_FEATURE_ps],   [$1])])
+
+# DX_INIT_DOXYGEN(PROJECT, [CONFIG-FILE], [OUTPUT-DOC-DIR])
+# ---------------------------------------------------------
+# PROJECT also serves as the base name for the documentation files.
+# The default CONFIG-FILE is "Doxyfile" and OUTPUT-DOC-DIR is "doxygen-doc".
+AC_DEFUN([DX_INIT_DOXYGEN], [
+
+# Files:
+AC_SUBST([DX_PROJECT], [$1])
+AC_SUBST([DX_CONFIG], [ifelse([$2], [], Doxyfile, [$2])])
+AC_SUBST([DX_DOCDIR], [ifelse([$3], [], doxygen-doc, [$3])])
+
+# Environment variables used inside doxygen.cfg:
+DX_ENV_APPEND(SRCDIR, $srcdir)
+DX_ENV_APPEND(PROJECT, $DX_PROJECT)
+DX_ENV_APPEND(DOCDIR, $DX_DOCDIR)
+DX_ENV_APPEND(VERSION, $PACKAGE_VERSION)
+
+# Doxygen itself:
+DX_ARG_ABLE(doc, [generate any doxygen documentation],
+            [],
+            [],
+            [DX_REQUIRE_PROG([DX_DOXYGEN], doxygen)
+             DX_REQUIRE_PROG([DX_PERL], perl)],
+            [DX_ENV_APPEND(PERL_PATH, $DX_PERL)])
+
+# Dot for graphics:
+DX_ARG_ABLE(dot, [generate graphics for doxygen documentation],
+            [DX_CHECK_DEPEND(doc, 1)],
+            [DX_CLEAR_DEPEND(doc, 1)],
+            [DX_REQUIRE_PROG([DX_DOT], dot)],
+            [DX_ENV_APPEND(HAVE_DOT, YES)
+             DX_ENV_APPEND(DOT_PATH, [`DX_DIRNAME_EXPR($DX_DOT)`])],
+            [DX_ENV_APPEND(HAVE_DOT, NO)])
+
+# Man pages generation:
+DX_ARG_ABLE(man, [generate doxygen manual pages],
+            [DX_CHECK_DEPEND(doc, 1)],
+            [DX_CLEAR_DEPEND(doc, 1)],
+            [],
+            [DX_ENV_APPEND(GENERATE_MAN, YES)],
+            [DX_ENV_APPEND(GENERATE_MAN, NO)])
+
+# RTF file generation:
+DX_ARG_ABLE(rtf, [generate doxygen RTF documentation],
+            [DX_CHECK_DEPEND(doc, 1)],
+            [DX_CLEAR_DEPEND(doc, 1)],
+            [],
+            [DX_ENV_APPEND(GENERATE_RTF, YES)],
+            [DX_ENV_APPEND(GENERATE_RTF, NO)])
+
+# XML file generation:
+DX_ARG_ABLE(xml, [generate doxygen XML documentation],
+            [DX_CHECK_DEPEND(doc, 1)],
+            [DX_CLEAR_DEPEND(doc, 1)],
+            [],
+            [DX_ENV_APPEND(GENERATE_XML, YES)],
+            [DX_ENV_APPEND(GENERATE_XML, NO)])
+
+# (Compressed) HTML help generation:
+DX_ARG_ABLE(chm, [generate doxygen compressed HTML help documentation],
+            [DX_CHECK_DEPEND(doc, 1)],
+            [DX_CLEAR_DEPEND(doc, 1)],
+            [DX_REQUIRE_PROG([DX_HHC], hhc)],
+            [DX_ENV_APPEND(HHC_PATH, $DX_HHC)
+             DX_ENV_APPEND(GENERATE_HTML, YES)
+             DX_ENV_APPEND(GENERATE_HTMLHELP, YES)],
+            [DX_ENV_APPEND(GENERATE_HTMLHELP, NO)])
+
+# Seperate CHI file generation.
+DX_ARG_ABLE(chi, [generate doxygen seperate compressed HTML help index file],
+            [DX_CHECK_DEPEND(chm, 1)],
+            [DX_CLEAR_DEPEND(chm, 1)],
+            [],
+            [DX_ENV_APPEND(GENERATE_CHI, YES)],
+            [DX_ENV_APPEND(GENERATE_CHI, NO)])
+
+# Plain HTML pages generation:
+DX_ARG_ABLE(html, [generate doxygen plain HTML documentation],
+            [DX_CHECK_DEPEND(doc, 1) DX_CHECK_DEPEND(chm, 0)],
+            [DX_CLEAR_DEPEND(doc, 1) DX_CLEAR_DEPEND(chm, 0)],
+            [],
+            [DX_ENV_APPEND(GENERATE_HTML, YES)],
+            [DX_TEST_FEATURE(chm) || DX_ENV_APPEND(GENERATE_HTML, NO)])
+
+# PostScript file generation:
+DX_ARG_ABLE(ps, [generate doxygen PostScript documentation],
+            [DX_CHECK_DEPEND(doc, 1)],
+            [DX_CLEAR_DEPEND(doc, 1)],
+            [DX_REQUIRE_PROG([DX_LATEX], latex)
+             DX_REQUIRE_PROG([DX_MAKEINDEX], makeindex)
+             DX_REQUIRE_PROG([DX_DVIPS], dvips)
+             DX_REQUIRE_PROG([DX_EGREP], egrep)])
+
+# PDF file generation:
+DX_ARG_ABLE(pdf, [generate doxygen PDF documentation],
+            [DX_CHECK_DEPEND(doc, 1)],
+            [DX_CLEAR_DEPEND(doc, 1)],
+            [DX_REQUIRE_PROG([DX_PDFLATEX], pdflatex)
+             DX_REQUIRE_PROG([DX_MAKEINDEX], makeindex)
+             DX_REQUIRE_PROG([DX_EGREP], egrep)])
+
+# LaTeX generation for PS and/or PDF:
+if DX_TEST_FEATURE(ps) || DX_TEST_FEATURE(pdf); then
+    AM_CONDITIONAL(DX_COND_latex, :)
+    DX_ENV_APPEND(GENERATE_LATEX, YES)
+else
+    AM_CONDITIONAL(DX_COND_latex, false)
+    DX_ENV_APPEND(GENERATE_LATEX, NO)
+fi
+
+# Paper size for PS and/or PDF:
+AC_ARG_VAR(DOXYGEN_PAPER_SIZE,
+           [a4wide (default), a4, letter, legal or executive])
+case "$DOXYGEN_PAPER_SIZE" in
+#(
+"")
+    AC_SUBST(DOXYGEN_PAPER_SIZE, "")
+;; #(
+a4wide|a4|letter|legal|executive)
+    DX_ENV_APPEND(PAPER_SIZE, $DOXYGEN_PAPER_SIZE)
+;; #(
+*)
+    AC_MSG_ERROR([unknown DOXYGEN_PAPER_SIZE='$DOXYGEN_PAPER_SIZE'])
+;;
+esac
+
+#For debugging:
+#echo DX_FLAG_doc=$DX_FLAG_doc
+#echo DX_FLAG_dot=$DX_FLAG_dot
+#echo DX_FLAG_man=$DX_FLAG_man
+#echo DX_FLAG_html=$DX_FLAG_html
+#echo DX_FLAG_chm=$DX_FLAG_chm
+#echo DX_FLAG_chi=$DX_FLAG_chi
+#echo DX_FLAG_rtf=$DX_FLAG_rtf
+#echo DX_FLAG_xml=$DX_FLAG_xml
+#echo DX_FLAG_pdf=$DX_FLAG_pdf
+#echo DX_FLAG_ps=$DX_FLAG_ps
+#echo DX_ENV=$DX_ENV
+])

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/src/c/aminclude.am
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/src/c/aminclude.am b/zookeeper-recipes/lock/src/c/aminclude.am
new file mode 100644
index 0000000..420049e
--- /dev/null
+++ b/zookeeper-recipes/lock/src/c/aminclude.am
@@ -0,0 +1,186 @@
+# Copyright (C) 2004 Oren Ben-Kiki
+# This file is distributed under the same terms as the Automake macro files.
+
+# Generate automatic documentation using Doxygen. Goals and variables values
+# are controlled by the various DX_COND_??? conditionals set by autoconf.
+#
+# The provided goals are:
+# doxygen-doc: Generate all doxygen documentation.
+# doxygen-run: Run doxygen, which will generate some of the documentation
+#              (HTML, CHM, CHI, MAN, RTF, XML) but will not do the post
+#              processing required for the rest of it (PS, PDF, and some MAN).
+# doxygen-man: Rename some doxygen generated man pages.
+# doxygen-ps: Generate doxygen PostScript documentation.
+# doxygen-pdf: Generate doxygen PDF documentation.
+#
+# Note that by default these are not integrated into the automake goals. If
+# doxygen is used to generate man pages, you can achieve this integration by
+# setting man3_MANS to the list of man pages generated and then adding the
+# dependency:
+#
+#   $(man3_MANS): doxygen-doc
+#
+# This will cause make to run doxygen and generate all the documentation.
+#
+# The following variable is intended for use in Makefile.am:
+#
+# DX_CLEANFILES = everything to clean.
+#
+# This is usually added to MOSTLYCLEANFILES.
+
+## --------------------------------- ##
+## Format-independent Doxygen rules. ##
+## --------------------------------- ##
+
+if DX_COND_doc
+
+## ------------------------------- ##
+## Rules specific for HTML output. ##
+## ------------------------------- ##
+
+if DX_COND_html
+
+DX_CLEAN_HTML = @DX_DOCDIR@/html
+
+endif DX_COND_html
+
+## ------------------------------ ##
+## Rules specific for CHM output. ##
+## ------------------------------ ##
+
+if DX_COND_chm
+
+DX_CLEAN_CHM = @DX_DOCDIR@/chm
+
+if DX_COND_chi
+
+DX_CLEAN_CHI = @DX_DOCDIR@/@PACKAGE@.chi
+
+endif DX_COND_chi
+
+endif DX_COND_chm
+
+## ------------------------------ ##
+## Rules specific for MAN output. ##
+## ------------------------------ ##
+
+if DX_COND_man
+
+DX_CLEAN_MAN = @DX_DOCDIR@/man
+
+endif DX_COND_man
+
+## ------------------------------ ##
+## Rules specific for RTF output. ##
+## ------------------------------ ##
+
+if DX_COND_rtf
+
+DX_CLEAN_RTF = @DX_DOCDIR@/rtf
+
+endif DX_COND_rtf
+
+## ------------------------------ ##
+## Rules specific for XML output. ##
+## ------------------------------ ##
+
+if DX_COND_xml
+
+DX_CLEAN_XML = @DX_DOCDIR@/xml
+
+endif DX_COND_xml
+
+## ----------------------------- ##
+## Rules specific for PS output. ##
+## ----------------------------- ##
+
+if DX_COND_ps
+
+DX_CLEAN_PS = @DX_DOCDIR@/@PACKAGE@.ps
+
+DX_PS_GOAL = doxygen-ps
+
+doxygen-ps: @DX_DOCDIR@/@PACKAGE@.ps
+
+@DX_DOCDIR@/@PACKAGE@.ps: @DX_DOCDIR@/@PACKAGE@.tag
+	cd @DX_DOCDIR@/latex; \
+	rm -f *.aux *.toc *.idx *.ind *.ilg *.log *.out; \
+	$(DX_LATEX) refman.tex; \
+	$(MAKEINDEX_PATH) refman.idx; \
+	$(DX_LATEX) refman.tex; \
+	countdown=5; \
+	while $(DX_EGREP) 'Rerun (LaTeX|to get cross-references right)' \
+	                  refman.log > /dev/null 2>&1 \
+	   && test $$countdown -gt 0; do \
+	    $(DX_LATEX) refman.tex; \
+	    countdown=`expr $$countdown - 1`; \
+	done; \
+	$(DX_DVIPS) -o ../@PACKAGE@.ps refman.dvi
+
+endif DX_COND_ps
+
+## ------------------------------ ##
+## Rules specific for PDF output. ##
+## ------------------------------ ##
+
+if DX_COND_pdf
+
+DX_CLEAN_PDF = @DX_DOCDIR@/@PACKAGE@.pdf
+
+DX_PDF_GOAL = doxygen-pdf
+
+doxygen-pdf: @DX_DOCDIR@/@PACKAGE@.pdf
+
+@DX_DOCDIR@/@PACKAGE@.pdf: @DX_DOCDIR@/@PACKAGE@.tag
+	cd @DX_DOCDIR@/latex; \
+	rm -f *.aux *.toc *.idx *.ind *.ilg *.log *.out; \
+	$(DX_PDFLATEX) refman.tex; \
+	$(DX_MAKEINDEX) refman.idx; \
+	$(DX_PDFLATEX) refman.tex; \
+	countdown=5; \
+	while $(DX_EGREP) 'Rerun (LaTeX|to get cross-references right)' \
+	                  refman.log > /dev/null 2>&1 \
+	   && test $$countdown -gt 0; do \
+	    $(DX_PDFLATEX) refman.tex; \
+	    countdown=`expr $$countdown - 1`; \
+	done; \
+	mv refman.pdf ../@PACKAGE@.pdf
+
+endif DX_COND_pdf
+
+## ------------------------------------------------- ##
+## Rules specific for LaTeX (shared for PS and PDF). ##
+## ------------------------------------------------- ##
+
+if DX_COND_latex
+
+DX_CLEAN_LATEX = @DX_DOCDIR@/latex
+
+endif DX_COND_latex
+
+.PHONY: doxygen-run doxygen-doc $(DX_PS_GOAL) $(DX_PDF_GOAL)
+
+.INTERMEDIATE: doxygen-run $(DX_PS_GOAL) $(DX_PDF_GOAL)
+
+doxygen-run: @DX_DOCDIR@/@PACKAGE@.tag
+
+doxygen-doc: doxygen-run $(DX_PS_GOAL) $(DX_PDF_GOAL)
+
+@DX_DOCDIR@/@PACKAGE@.tag: $(DX_CONFIG) $(pkginclude_HEADERS)
+	rm -rf @DX_DOCDIR@
+	$(DX_ENV) $(DX_DOXYGEN) $(srcdir)/$(DX_CONFIG)
+
+DX_CLEANFILES = \
+    @DX_DOCDIR@/@PACKAGE@.tag \
+    -r \
+    $(DX_CLEAN_HTML) \
+    $(DX_CLEAN_CHM) \
+    $(DX_CLEAN_CHI) \
+    $(DX_CLEAN_MAN) \
+    $(DX_CLEAN_RTF) \
+    $(DX_CLEAN_XML) \
+    $(DX_CLEAN_PS) \
+    $(DX_CLEAN_PDF) \
+    $(DX_CLEAN_LATEX)
+
+endif DX_COND_doc


[04/10] zookeeper git commit: ZOOKEEPER-3033: branch-3.4 - MAVEN MIGRATION - Step 1.2 - zk-recipes

Posted by an...@apache.org.
http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/src/c/c-doc.Doxyfile
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diff --git a/zookeeper-recipes/lock/src/c/c-doc.Doxyfile b/zookeeper-recipes/lock/src/c/c-doc.Doxyfile
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+++ b/zookeeper-recipes/lock/src/c/c-doc.Doxyfile
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+# Doxyfile 1.4.7
+
+# This file describes the settings to be used by the documentation system
+# doxygen (www.doxygen.org) for a project
+#
+# All text after a hash (#) is considered a comment and will be ignored
+# The format is:
+#       TAG = value [value, ...]
+# For lists items can also be appended using:
+#       TAG += value [value, ...]
+# Values that contain spaces should be placed between quotes (" ")
+
+#---------------------------------------------------------------------------
+# Project related configuration options
+#---------------------------------------------------------------------------
+
+# The PROJECT_NAME tag is a single word (or a sequence of words surrounded 
+# by quotes) that should identify the project.
+
+PROJECT_NAME = $(PROJECT)-$(VERSION)
+
+# The PROJECT_NUMBER tag can be used to enter a project or revision number. 
+# This could be handy for archiving the generated documentation or 
+# if some version control system is used.
+
+PROJECT_NUMBER = 
+
+# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) 
+# base path where the generated documentation will be put. 
+# If a relative path is entered, it will be relative to the location 
+# where doxygen was started. If left blank the current directory will be used.
+
+OUTPUT_DIRECTORY = $(DOCDIR)
+
+# If the CREATE_SUBDIRS tag is set to YES, then doxygen will create 
+# 4096 sub-directories (in 2 levels) under the output directory of each output 
+# format and will distribute the generated files over these directories. 
+# Enabling this option can be useful when feeding doxygen a huge amount of 
+# source files, where putting all generated files in the same directory would 
+# otherwise cause performance problems for the file system.
+
+CREATE_SUBDIRS = NO
+
+# The OUTPUT_LANGUAGE tag is used to specify the language in which all 
+# documentation generated by doxygen is written. Doxygen will use this 
+# information to generate all constant output in the proper language. 
+# The default language is English, other supported languages are: 
+# Brazilian, Catalan, Chinese, Chinese-Traditional, Croatian, Czech, Danish, 
+# Dutch, Finnish, French, German, Greek, Hungarian, Italian, Japanese, 
+# Japanese-en (Japanese with English messages), Korean, Korean-en, Norwegian, 
+# Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Slovene, Spanish, 
+# Swedish, and Ukrainian.
+
+OUTPUT_LANGUAGE = English
+
+# This tag can be used to specify the encoding used in the generated output. 
+# The encoding is not always determined by the language that is chosen, 
+# but also whether or not the output is meant for Windows or non-Windows users. 
+# In case there is a difference, setting the USE_WINDOWS_ENCODING tag to YES 
+# forces the Windows encoding (this is the default for the Windows binary), 
+# whereas setting the tag to NO uses a Unix-style encoding (the default for 
+# all platforms other than Windows).
+
+USE_WINDOWS_ENCODING = NO
+
+# If the BRIEF_MEMBER_DESC tag is set to YES (the default) Doxygen will 
+# include brief member descriptions after the members that are listed in 
+# the file and class documentation (similar to JavaDoc). 
+# Set to NO to disable this.
+
+BRIEF_MEMBER_DESC = YES
+
+# If the REPEAT_BRIEF tag is set to YES (the default) Doxygen will prepend 
+# the brief description of a member or function before the detailed description. 
+# Note: if both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the 
+# brief descriptions will be completely suppressed.
+
+REPEAT_BRIEF = YES
+
+# This tag implements a quasi-intelligent brief description abbreviator 
+# that is used to form the text in various listings. Each string 
+# in this list, if found as the leading text of the brief description, will be 
+# stripped from the text and the result after processing the whole list, is 
+# used as the annotated text. Otherwise, the brief description is used as-is. 
+# If left blank, the following values are used ("$name" is automatically 
+# replaced with the name of the entity): "The $name class" "The $name widget" 
+# "The $name file" "is" "provides" "specifies" "contains" 
+# "represents" "a" "an" "the"
+
+ABBREVIATE_BRIEF = 
+
+# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then 
+# Doxygen will generate a detailed section even if there is only a brief 
+# description.
+
+ALWAYS_DETAILED_SEC = NO
+
+# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all 
+# inherited members of a class in the documentation of that class as if those 
+# members were ordinary class members. Constructors, destructors and assignment 
+# operators of the base classes will not be shown.
+
+INLINE_INHERITED_MEMB = NO
+
+# If the FULL_PATH_NAMES tag is set to YES then Doxygen will prepend the full 
+# path before files name in the file list and in the header files. If set 
+# to NO the shortest path that makes the file name unique will be used.
+
+FULL_PATH_NAMES = YES
+
+# If the FULL_PATH_NAMES tag is set to YES then the STRIP_FROM_PATH tag 
+# can be used to strip a user-defined part of the path. Stripping is 
+# only done if one of the specified strings matches the left-hand part of 
+# the path. The tag can be used to show relative paths in the file list. 
+# If left blank the directory from which doxygen is run is used as the 
+# path to strip.
+
+STRIP_FROM_PATH = 
+
+# The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of 
+# the path mentioned in the documentation of a class, which tells 
+# the reader which header file to include in order to use a class. 
+# If left blank only the name of the header file containing the class 
+# definition is used. Otherwise one should specify the include paths that 
+# are normally passed to the compiler using the -I flag.
+
+STRIP_FROM_INC_PATH = 
+
+# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter 
+# (but less readable) file names. This can be useful is your file systems 
+# doesn't support long names like on DOS, Mac, or CD-ROM.
+
+SHORT_NAMES = NO
+
+# If the JAVADOC_AUTOBRIEF tag is set to YES then Doxygen 
+# will interpret the first line (until the first dot) of a JavaDoc-style 
+# comment as the brief description. If set to NO, the JavaDoc 
+# comments will behave just like the Qt-style comments (thus requiring an 
+# explicit @brief command for a brief description.
+
+JAVADOC_AUTOBRIEF = NO
+
+# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make Doxygen 
+# treat a multi-line C++ special comment block (i.e. a block of //! or /// 
+# comments) as a brief description. This used to be the default behaviour. 
+# The new default is to treat a multi-line C++ comment block as a detailed 
+# description. Set this tag to YES if you prefer the old behaviour instead.
+
+MULTILINE_CPP_IS_BRIEF = NO
+
+# If the DETAILS_AT_TOP tag is set to YES then Doxygen 
+# will output the detailed description near the top, like JavaDoc.
+# If set to NO, the detailed description appears after the member 
+# documentation.
+
+DETAILS_AT_TOP = NO
+
+# If the INHERIT_DOCS tag is set to YES (the default) then an undocumented 
+# member inherits the documentation from any documented member that it 
+# re-implements.
+
+INHERIT_DOCS = YES
+
+# If the SEPARATE_MEMBER_PAGES tag is set to YES, then doxygen will produce 
+# a new page for each member. If set to NO, the documentation of a member will 
+# be part of the file/class/namespace that contains it.
+
+SEPARATE_MEMBER_PAGES = NO
+
+# The TAB_SIZE tag can be used to set the number of spaces in a tab. 
+# Doxygen uses this value to replace tabs by spaces in code fragments.
+
+TAB_SIZE = 8
+
+# This tag can be used to specify a number of aliases that acts 
+# as commands in the documentation. An alias has the form "name=value". 
+# For example adding "sideeffect=\par Side Effects:\n" will allow you to 
+# put the command \sideeffect (or @sideeffect) in the documentation, which 
+# will result in a user-defined paragraph with heading "Side Effects:". 
+# You can put \n's in the value part of an alias to insert newlines.
+
+ALIASES = 
+
+# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C 
+# sources only. Doxygen will then generate output that is more tailored for C. 
+# For instance, some of the names that are used will be different. The list 
+# of all members will be omitted, etc.
+
+OPTIMIZE_OUTPUT_FOR_C = YES
+
+# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java 
+# sources only. Doxygen will then generate output that is more tailored for Java. 
+# For instance, namespaces will be presented as packages, qualified scopes 
+# will look different, etc.
+
+OPTIMIZE_OUTPUT_JAVA = NO
+
+# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want to 
+# include (a tag file for) the STL sources as input, then you should 
+# set this tag to YES in order to let doxygen match functions declarations and 
+# definitions whose arguments contain STL classes (e.g. func(std::string); v.s. 
+# func(std::string) {}). This also make the inheritance and collaboration 
+# diagrams that involve STL classes more complete and accurate.
+
+BUILTIN_STL_SUPPORT = NO
+
+# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC 
+# tag is set to YES, then doxygen will reuse the documentation of the first 
+# member in the group (if any) for the other members of the group. By default 
+# all members of a group must be documented explicitly.
+
+DISTRIBUTE_GROUP_DOC = NO
+
+# Set the SUBGROUPING tag to YES (the default) to allow class member groups of 
+# the same type (for instance a group of public functions) to be put as a 
+# subgroup of that type (e.g. under the Public Functions section). Set it to 
+# NO to prevent subgrouping. Alternatively, this can be done per class using 
+# the \nosubgrouping command.
+
+SUBGROUPING = YES
+
+#---------------------------------------------------------------------------
+# Build related configuration options
+#---------------------------------------------------------------------------
+
+# If the EXTRACT_ALL tag is set to YES doxygen will assume all entities in 
+# documentation are documented, even if no documentation was available. 
+# Private class members and static file members will be hidden unless 
+# the EXTRACT_PRIVATE and EXTRACT_STATIC tags are set to YES
+
+EXTRACT_ALL = NO
+
+# If the EXTRACT_PRIVATE tag is set to YES all private members of a class 
+# will be included in the documentation.
+
+EXTRACT_PRIVATE = NO
+
+# If the EXTRACT_STATIC tag is set to YES all static members of a file 
+# will be included in the documentation.
+
+EXTRACT_STATIC = YES
+
+# If the EXTRACT_LOCAL_CLASSES tag is set to YES classes (and structs) 
+# defined locally in source files will be included in the documentation. 
+# If set to NO only classes defined in header files are included.
+
+EXTRACT_LOCAL_CLASSES = YES
+
+# This flag is only useful for Objective-C code. When set to YES local 
+# methods, which are defined in the implementation section but not in 
+# the interface are included in the documentation. 
+# If set to NO (the default) only methods in the interface are included.
+
+EXTRACT_LOCAL_METHODS = NO
+
+# If the HIDE_UNDOC_MEMBERS tag is set to YES, Doxygen will hide all 
+# undocumented members of documented classes, files or namespaces. 
+# If set to NO (the default) these members will be included in the 
+# various overviews, but no documentation section is generated. 
+# This option has no effect if EXTRACT_ALL is enabled.
+
+HIDE_UNDOC_MEMBERS = NO
+
+# If the HIDE_UNDOC_CLASSES tag is set to YES, Doxygen will hide all 
+# undocumented classes that are normally visible in the class hierarchy. 
+# If set to NO (the default) these classes will be included in the various 
+# overviews. This option has no effect if EXTRACT_ALL is enabled.
+
+HIDE_UNDOC_CLASSES = NO
+
+# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, Doxygen will hide all 
+# friend (class|struct|union) declarations. 
+# If set to NO (the default) these declarations will be included in the 
+# documentation.
+
+HIDE_FRIEND_COMPOUNDS = NO
+
+# If the HIDE_IN_BODY_DOCS tag is set to YES, Doxygen will hide any 
+# documentation blocks found inside the body of a function. 
+# If set to NO (the default) these blocks will be appended to the 
+# function's detailed documentation block.
+
+HIDE_IN_BODY_DOCS = NO
+
+# The INTERNAL_DOCS tag determines if documentation 
+# that is typed after a \internal command is included. If the tag is set 
+# to NO (the default) then the documentation will be excluded. 
+# Set it to YES to include the internal documentation.
+
+INTERNAL_DOCS = NO
+
+# If the CASE_SENSE_NAMES tag is set to NO then Doxygen will only generate 
+# file names in lower-case letters. If set to YES upper-case letters are also 
+# allowed. This is useful if you have classes or files whose names only differ 
+# in case and if your file system supports case sensitive file names. Windows 
+# and Mac users are advised to set this option to NO.
+
+CASE_SENSE_NAMES = YES
+
+# If the HIDE_SCOPE_NAMES tag is set to NO (the default) then Doxygen 
+# will show members with their full class and namespace scopes in the 
+# documentation. If set to YES the scope will be hidden.
+
+HIDE_SCOPE_NAMES = NO
+
+# If the SHOW_INCLUDE_FILES tag is set to YES (the default) then Doxygen 
+# will put a list of the files that are included by a file in the documentation 
+# of that file.
+
+SHOW_INCLUDE_FILES = NO
+
+# If the INLINE_INFO tag is set to YES (the default) then a tag [inline] 
+# is inserted in the documentation for inline members.
+
+INLINE_INFO = YES
+
+# If the SORT_MEMBER_DOCS tag is set to YES (the default) then doxygen 
+# will sort the (detailed) documentation of file and class members 
+# alphabetically by member name. If set to NO the members will appear in 
+# declaration order.
+
+SORT_MEMBER_DOCS = YES
+
+# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the 
+# brief documentation of file, namespace and class members alphabetically 
+# by member name. If set to NO (the default) the members will appear in 
+# declaration order.
+
+SORT_BRIEF_DOCS = NO
+
+# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be 
+# sorted by fully-qualified names, including namespaces. If set to 
+# NO (the default), the class list will be sorted only by class name, 
+# not including the namespace part. 
+# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES.
+# Note: This option applies only to the class list, not to the 
+# alphabetical list.
+
+SORT_BY_SCOPE_NAME = NO
+
+# The GENERATE_TODOLIST tag can be used to enable (YES) or 
+# disable (NO) the todo list. This list is created by putting \todo 
+# commands in the documentation.
+
+GENERATE_TODOLIST = YES
+
+# The GENERATE_TESTLIST tag can be used to enable (YES) or 
+# disable (NO) the test list. This list is created by putting \test 
+# commands in the documentation.
+
+GENERATE_TESTLIST = YES
+
+# The GENERATE_BUGLIST tag can be used to enable (YES) or 
+# disable (NO) the bug list. This list is created by putting \bug 
+# commands in the documentation.
+
+GENERATE_BUGLIST = YES
+
+# The GENERATE_DEPRECATEDLIST tag can be used to enable (YES) or 
+# disable (NO) the deprecated list. This list is created by putting 
+# \deprecated commands in the documentation.
+
+GENERATE_DEPRECATEDLIST = YES
+
+# The ENABLED_SECTIONS tag can be used to enable conditional 
+# documentation sections, marked by \if sectionname ... \endif.
+
+ENABLED_SECTIONS = 
+
+# The MAX_INITIALIZER_LINES tag determines the maximum number of lines 
+# the initial value of a variable or define consists of for it to appear in 
+# the documentation. If the initializer consists of more lines than specified 
+# here it will be hidden. Use a value of 0 to hide initializers completely. 
+# The appearance of the initializer of individual variables and defines in the 
+# documentation can be controlled using \showinitializer or \hideinitializer 
+# command in the documentation regardless of this setting.
+
+MAX_INITIALIZER_LINES = 30
+
+# Set the SHOW_USED_FILES tag to NO to disable the list of files generated 
+# at the bottom of the documentation of classes and structs. If set to YES the 
+# list will mention the files that were used to generate the documentation.
+
+SHOW_USED_FILES = YES
+
+# If the sources in your project are distributed over multiple directories 
+# then setting the SHOW_DIRECTORIES tag to YES will show the directory hierarchy 
+# in the documentation. The default is NO.
+
+SHOW_DIRECTORIES = NO
+
+# The FILE_VERSION_FILTER tag can be used to specify a program or script that 
+# doxygen should invoke to get the current version for each file (typically from the 
+# version control system). Doxygen will invoke the program by executing (via 
+# popen()) the command <command> <input-file>, where <command> is the value of 
+# the FILE_VERSION_FILTER tag, and <input-file> is the name of an input file 
+# provided by doxygen. Whatever the program writes to standard output 
+# is used as the file version. See the manual for examples.
+
+FILE_VERSION_FILTER = 
+
+#---------------------------------------------------------------------------
+# configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+
+# The QUIET tag can be used to turn on/off the messages that are generated 
+# by doxygen. Possible values are YES and NO. If left blank NO is used.
+
+QUIET = NO
+
+# The WARNINGS tag can be used to turn on/off the warning messages that are 
+# generated by doxygen. Possible values are YES and NO. If left blank 
+# NO is used.
+
+WARNINGS = YES
+
+# If WARN_IF_UNDOCUMENTED is set to YES, then doxygen will generate warnings 
+# for undocumented members. If EXTRACT_ALL is set to YES then this flag will 
+# automatically be disabled.
+
+WARN_IF_UNDOCUMENTED = YES
+
+# If WARN_IF_DOC_ERROR is set to YES, doxygen will generate warnings for 
+# potential errors in the documentation, such as not documenting some 
+# parameters in a documented function, or documenting parameters that 
+# don't exist or using markup commands wrongly.
+
+WARN_IF_DOC_ERROR = YES
+
+# This WARN_NO_PARAMDOC option can be abled to get warnings for 
+# functions that are documented, but have no documentation for their parameters 
+# or return value. If set to NO (the default) doxygen will only warn about 
+# wrong or incomplete parameter documentation, but not about the absence of 
+# documentation.
+
+WARN_NO_PARAMDOC = NO
+
+# The WARN_FORMAT tag determines the format of the warning messages that 
+# doxygen can produce. The string should contain the $file, $line, and $text 
+# tags, which will be replaced by the file and line number from which the 
+# warning originated and the warning text. Optionally the format may contain 
+# $version, which will be replaced by the version of the file (if it could 
+# be obtained via FILE_VERSION_FILTER)
+
+WARN_FORMAT = "$file:$line: $text"
+
+# The WARN_LOGFILE tag can be used to specify a file to which warning 
+# and error messages should be written. If left blank the output is written 
+# to stderr.
+
+WARN_LOGFILE = 
+
+#---------------------------------------------------------------------------
+# configuration options related to the input files
+#---------------------------------------------------------------------------
+
+# The INPUT tag can be used to specify the files and/or directories that contain 
+# documented source files. You may enter file names like "myfile.cpp" or 
+# directories like "/usr/src/myproject". Separate the files or directories 
+# with spaces.
+
+INPUT = include/zoo_lock.h
+
+# If the value of the INPUT tag contains directories, you can use the 
+# FILE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp 
+# and *.h) to filter out the source-files in the directories. If left 
+# blank the following patterns are tested: 
+# *.c *.cc *.cxx *.cpp *.c++ *.java *.ii *.ixx *.ipp *.i++ *.inl *.h *.hh *.hxx 
+# *.hpp *.h++ *.idl *.odl *.cs *.php *.php3 *.inc *.m *.mm *.py
+
+FILE_PATTERNS = 
+
+# The RECURSIVE tag can be used to turn specify whether or not subdirectories 
+# should be searched for input files as well. Possible values are YES and NO. 
+# If left blank NO is used.
+
+RECURSIVE = NO
+
+# The EXCLUDE tag can be used to specify files and/or directories that should 
+# excluded from the INPUT source files. This way you can easily exclude a 
+# subdirectory from a directory tree whose root is specified with the INPUT tag.
+
+EXCLUDE = 
+
+# The EXCLUDE_SYMLINKS tag can be used select whether or not files or 
+# directories that are symbolic links (a Unix filesystem feature) are excluded 
+# from the input.
+
+EXCLUDE_SYMLINKS = NO
+
+# If the value of the INPUT tag contains directories, you can use the 
+# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude 
+# certain files from those directories. Note that the wildcards are matched 
+# against the file with absolute path, so to exclude all test directories 
+# for example use the pattern */test/*
+
+EXCLUDE_PATTERNS = 
+
+# The EXAMPLE_PATH tag can be used to specify one or more files or 
+# directories that contain example code fragments that are included (see 
+# the \include command).
+
+EXAMPLE_PATH = 
+
+# If the value of the EXAMPLE_PATH tag contains directories, you can use the 
+# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp 
+# and *.h) to filter out the source-files in the directories. If left 
+# blank all files are included.
+
+EXAMPLE_PATTERNS = 
+
+# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be 
+# searched for input files to be used with the \include or \dontinclude 
+# commands irrespective of the value of the RECURSIVE tag. 
+# Possible values are YES and NO. If left blank NO is used.
+
+EXAMPLE_RECURSIVE = NO
+
+# The IMAGE_PATH tag can be used to specify one or more files or 
+# directories that contain image that are included in the documentation (see 
+# the \image command).
+
+IMAGE_PATH = 
+
+# The INPUT_FILTER tag can be used to specify a program that doxygen should 
+# invoke to filter for each input file. Doxygen will invoke the filter program 
+# by executing (via popen()) the command <filter> <input-file>, where <filter> 
+# is the value of the INPUT_FILTER tag, and <input-file> is the name of an 
+# input file. Doxygen will then use the output that the filter program writes 
+# to standard output.  If FILTER_PATTERNS is specified, this tag will be 
+# ignored.
+
+INPUT_FILTER = 
+
+# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern 
+# basis.  Doxygen will compare the file name with each pattern and apply the 
+# filter if there is a match.  The filters are a list of the form: 
+# pattern=filter (like *.cpp=my_cpp_filter). See INPUT_FILTER for further 
+# info on how filters are used. If FILTER_PATTERNS is empty, INPUT_FILTER 
+# is applied to all files.
+
+FILTER_PATTERNS = 
+
+# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using 
+# INPUT_FILTER) will be used to filter the input files when producing source 
+# files to browse (i.e. when SOURCE_BROWSER is set to YES).
+
+FILTER_SOURCE_FILES = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to source browsing
+#---------------------------------------------------------------------------
+
+# If the SOURCE_BROWSER tag is set to YES then a list of source files will 
+# be generated. Documented entities will be cross-referenced with these sources. 
+# Note: To get rid of all source code in the generated output, make sure also 
+# VERBATIM_HEADERS is set to NO.
+
+SOURCE_BROWSER = NO
+
+# Setting the INLINE_SOURCES tag to YES will include the body 
+# of functions and classes directly in the documentation.
+
+INLINE_SOURCES = NO
+
+# Setting the STRIP_CODE_COMMENTS tag to YES (the default) will instruct 
+# doxygen to hide any special comment blocks from generated source code 
+# fragments. Normal C and C++ comments will always remain visible.
+
+STRIP_CODE_COMMENTS = YES
+
+# If the REFERENCED_BY_RELATION tag is set to YES (the default) 
+# then for each documented function all documented 
+# functions referencing it will be listed.
+
+REFERENCED_BY_RELATION = YES
+
+# If the REFERENCES_RELATION tag is set to YES (the default) 
+# then for each documented function all documented entities 
+# called/used by that function will be listed.
+
+REFERENCES_RELATION = YES
+
+# If the REFERENCES_LINK_SOURCE tag is set to YES (the default)
+# and SOURCE_BROWSER tag is set to YES, then the hyperlinks from
+# functions in REFERENCES_RELATION and REFERENCED_BY_RELATION lists will
+# link to the source code.  Otherwise they will link to the documentstion.
+
+REFERENCES_LINK_SOURCE = YES
+
+# If the USE_HTAGS tag is set to YES then the references to source code 
+# will point to the HTML generated by the htags(1) tool instead of doxygen 
+# built-in source browser. The htags tool is part of GNU's global source 
+# tagging system (see http://www.gnu.org/software/global/global.html). You 
+# will need version 4.8.6 or higher.
+
+USE_HTAGS = NO
+
+# If the VERBATIM_HEADERS tag is set to YES (the default) then Doxygen 
+# will generate a verbatim copy of the header file for each class for 
+# which an include is specified. Set to NO to disable this.
+
+VERBATIM_HEADERS = YES
+
+#---------------------------------------------------------------------------
+# configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+
+# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index 
+# of all compounds will be generated. Enable this if the project 
+# contains a lot of classes, structs, unions or interfaces.
+
+ALPHABETICAL_INDEX = NO
+
+# If the alphabetical index is enabled (see ALPHABETICAL_INDEX) then 
+# the COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns 
+# in which this list will be split (can be a number in the range [1..20])
+
+COLS_IN_ALPHA_INDEX = 5
+
+# In case all classes in a project start with a common prefix, all 
+# classes will be put under the same header in the alphabetical index. 
+# The IGNORE_PREFIX tag can be used to specify one or more prefixes that 
+# should be ignored while generating the index headers.
+
+IGNORE_PREFIX = 
+
+#---------------------------------------------------------------------------
+# configuration options related to the HTML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_HTML tag is set to YES (the default) Doxygen will 
+# generate HTML output.
+
+GENERATE_HTML = $(GENERATE_HTML)
+
+# The HTML_OUTPUT tag is used to specify where the HTML docs will be put. 
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
+# put in front of it. If left blank `html' will be used as the default path.
+
+HTML_OUTPUT = html
+
+# The HTML_FILE_EXTENSION tag can be used to specify the file extension for 
+# each generated HTML page (for example: .htm,.php,.asp). If it is left blank 
+# doxygen will generate files with .html extension.
+
+HTML_FILE_EXTENSION = .html
+
+# The HTML_HEADER tag can be used to specify a personal HTML header for 
+# each generated HTML page. If it is left blank doxygen will generate a 
+# standard header.
+
+HTML_HEADER = 
+
+# The HTML_FOOTER tag can be used to specify a personal HTML footer for 
+# each generated HTML page. If it is left blank doxygen will generate a 
+# standard footer.
+
+HTML_FOOTER = 
+
+# The HTML_STYLESHEET tag can be used to specify a user-defined cascading 
+# style sheet that is used by each HTML page. It can be used to 
+# fine-tune the look of the HTML output. If the tag is left blank doxygen 
+# will generate a default style sheet. Note that doxygen will try to copy 
+# the style sheet file to the HTML output directory, so don't put your own 
+# stylesheet in the HTML output directory as well, or it will be erased!
+
+HTML_STYLESHEET = 
+
+# If the HTML_ALIGN_MEMBERS tag is set to YES, the members of classes, 
+# files or namespaces will be aligned in HTML using tables. If set to 
+# NO a bullet list will be used.
+
+HTML_ALIGN_MEMBERS = YES
+
+# If the GENERATE_HTMLHELP tag is set to YES, additional index files 
+# will be generated that can be used as input for tools like the 
+# Microsoft HTML help workshop to generate a compressed HTML help file (.chm) 
+# of the generated HTML documentation.
+
+GENERATE_HTMLHELP = $(GENERATE_HTMLHELP)
+
+# If the GENERATE_HTMLHELP tag is set to YES, the CHM_FILE tag can 
+# be used to specify the file name of the resulting .chm file. You 
+# can add a path in front of the file if the result should not be 
+# written to the html output directory.
+
+CHM_FILE = ../$(PROJECT).chm
+
+# If the GENERATE_HTMLHELP tag is set to YES, the HHC_LOCATION tag can 
+# be used to specify the location (absolute path including file name) of 
+# the HTML help compiler (hhc.exe). If non-empty doxygen will try to run 
+# the HTML help compiler on the generated index.hhp.
+
+HHC_LOCATION = $(HHC_PATH)
+
+# If the GENERATE_HTMLHELP tag is set to YES, the GENERATE_CHI flag 
+# controls if a separate .chi index file is generated (YES) or that 
+# it should be included in the master .chm file (NO).
+
+GENERATE_CHI = $(GENERATE_CHI)
+
+# If the GENERATE_HTMLHELP tag is set to YES, the BINARY_TOC flag 
+# controls whether a binary table of contents is generated (YES) or a 
+# normal table of contents (NO) in the .chm file.
+
+BINARY_TOC = NO
+
+# The TOC_EXPAND flag can be set to YES to add extra items for group members 
+# to the contents of the HTML help documentation and to the tree view.
+
+TOC_EXPAND = NO
+
+# The DISABLE_INDEX tag can be used to turn on/off the condensed index at 
+# top of each HTML page. The value NO (the default) enables the index and 
+# the value YES disables it.
+
+DISABLE_INDEX = NO
+
+# This tag can be used to set the number of enum values (range [1..20]) 
+# that doxygen will group on one line in the generated HTML documentation.
+
+ENUM_VALUES_PER_LINE = 4
+
+# If the GENERATE_TREEVIEW tag is set to YES, a side panel will be
+# generated containing a tree-like index structure (just like the one that 
+# is generated for HTML Help). For this to work a browser that supports 
+# JavaScript, DHTML, CSS and frames is required (for instance Mozilla 1.0+, 
+# Netscape 6.0+, Internet explorer 5.0+, or Konqueror). Windows users are 
+# probably better off using the HTML help feature.
+
+GENERATE_TREEVIEW = NO
+
+# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be 
+# used to set the initial width (in pixels) of the frame in which the tree 
+# is shown.
+
+TREEVIEW_WIDTH = 250
+
+#---------------------------------------------------------------------------
+# configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_LATEX tag is set to YES (the default) Doxygen will 
+# generate Latex output.
+
+GENERATE_LATEX = $(GENERATE_LATEX)
+
+# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. 
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
+# put in front of it. If left blank `latex' will be used as the default path.
+
+LATEX_OUTPUT = latex
+
+# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be 
+# invoked. If left blank `latex' will be used as the default command name.
+
+LATEX_CMD_NAME = latex
+
+# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to 
+# generate index for LaTeX. If left blank `makeindex' will be used as the 
+# default command name.
+
+MAKEINDEX_CMD_NAME = makeindex
+
+# If the COMPACT_LATEX tag is set to YES Doxygen generates more compact 
+# LaTeX documents. This may be useful for small projects and may help to 
+# save some trees in general.
+
+COMPACT_LATEX = NO
+
+# The PAPER_TYPE tag can be used to set the paper type that is used 
+# by the printer. Possible values are: a4, a4wide, letter, legal and 
+# executive. If left blank a4wide will be used.
+
+PAPER_TYPE = $(PAPER_SIZE)
+
+# The EXTRA_PACKAGES tag can be to specify one or more names of LaTeX 
+# packages that should be included in the LaTeX output.
+
+EXTRA_PACKAGES = 
+
+# The LATEX_HEADER tag can be used to specify a personal LaTeX header for 
+# the generated latex document. The header should contain everything until 
+# the first chapter. If it is left blank doxygen will generate a 
+# standard header. Notice: only use this tag if you know what you are doing!
+
+LATEX_HEADER = 
+
+# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated 
+# is prepared for conversion to pdf (using ps2pdf). The pdf file will 
+# contain links (just like the HTML output) instead of page references 
+# This makes the output suitable for online browsing using a pdf viewer.
+
+PDF_HYPERLINKS = NO
+
+# If the USE_PDFLATEX tag is set to YES, pdflatex will be used instead of 
+# plain latex in the generated Makefile. Set this option to YES to get a 
+# higher quality PDF documentation.
+
+USE_PDFLATEX = $(GENERATE_PDF)
+
+# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \\batchmode. 
+# command to the generated LaTeX files. This will instruct LaTeX to keep 
+# running if errors occur, instead of asking the user for help. 
+# This option is also used when generating formulas in HTML.
+
+LATEX_BATCHMODE = NO
+
+# If LATEX_HIDE_INDICES is set to YES then doxygen will not 
+# include the index chapters (such as File Index, Compound Index, etc.) 
+# in the output.
+
+LATEX_HIDE_INDICES = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the RTF output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_RTF tag is set to YES Doxygen will generate RTF output 
+# The RTF output is optimized for Word 97 and may not look very pretty with 
+# other RTF readers or editors.
+
+GENERATE_RTF = $(GENERATE_RTF)
+
+# The RTF_OUTPUT tag is used to specify where the RTF docs will be put. 
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
+# put in front of it. If left blank `rtf' will be used as the default path.
+
+RTF_OUTPUT = rtf
+
+# If the COMPACT_RTF tag is set to YES Doxygen generates more compact 
+# RTF documents. This may be useful for small projects and may help to 
+# save some trees in general.
+
+COMPACT_RTF = NO
+
+# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated 
+# will contain hyperlink fields. The RTF file will 
+# contain links (just like the HTML output) instead of page references. 
+# This makes the output suitable for online browsing using WORD or other 
+# programs which support those fields. 
+# Note: wordpad (write) and others do not support links.
+
+RTF_HYPERLINKS = NO
+
+# Load stylesheet definitions from file. Syntax is similar to doxygen's 
+# config file, i.e. a series of assignments. You only have to provide 
+# replacements, missing definitions are set to their default value.
+
+RTF_STYLESHEET_FILE = 
+
+# Set optional variables used in the generation of an rtf document. 
+# Syntax is similar to doxygen's config file.
+
+RTF_EXTENSIONS_FILE = 
+
+#---------------------------------------------------------------------------
+# configuration options related to the man page output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_MAN tag is set to YES (the default) Doxygen will 
+# generate man pages
+
+GENERATE_MAN = $(GENERATE_MAN)
+
+# The MAN_OUTPUT tag is used to specify where the man pages will be put. 
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
+# put in front of it. If left blank `man' will be used as the default path.
+
+MAN_OUTPUT = man
+
+# The MAN_EXTENSION tag determines the extension that is added to 
+# the generated man pages (default is the subroutine's section .3)
+
+MAN_EXTENSION = .3
+
+# If the MAN_LINKS tag is set to YES and Doxygen generates man output, 
+# then it will generate one additional man file for each entity 
+# documented in the real man page(s). These additional files 
+# only source the real man page, but without them the man command 
+# would be unable to find the correct page. The default is NO.
+
+MAN_LINKS = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the XML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_XML tag is set to YES Doxygen will 
+# generate an XML file that captures the structure of 
+# the code including all documentation.
+
+GENERATE_XML = $(GENERATE_XML)
+
+# The XML_OUTPUT tag is used to specify where the XML pages will be put. 
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
+# put in front of it. If left blank `xml' will be used as the default path.
+
+XML_OUTPUT = xml
+
+# The XML_SCHEMA tag can be used to specify an XML schema, 
+# which can be used by a validating XML parser to check the 
+# syntax of the XML files.
+
+XML_SCHEMA = 
+
+# The XML_DTD tag can be used to specify an XML DTD, 
+# which can be used by a validating XML parser to check the 
+# syntax of the XML files.
+
+XML_DTD = 
+
+# If the XML_PROGRAMLISTING tag is set to YES Doxygen will 
+# dump the program listings (including syntax highlighting 
+# and cross-referencing information) to the XML output. Note that 
+# enabling this will significantly increase the size of the XML output.
+
+XML_PROGRAMLISTING = YES
+
+#---------------------------------------------------------------------------
+# configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_AUTOGEN_DEF tag is set to YES Doxygen will 
+# generate an AutoGen Definitions (see autogen.sf.net) file 
+# that captures the structure of the code including all 
+# documentation. Note that this feature is still experimental 
+# and incomplete at the moment.
+
+GENERATE_AUTOGEN_DEF = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the Perl module output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_PERLMOD tag is set to YES Doxygen will 
+# generate a Perl module file that captures the structure of 
+# the code including all documentation. Note that this 
+# feature is still experimental and incomplete at the 
+# moment.
+
+GENERATE_PERLMOD = NO
+
+# If the PERLMOD_LATEX tag is set to YES Doxygen will generate 
+# the necessary Makefile rules, Perl scripts and LaTeX code to be able 
+# to generate PDF and DVI output from the Perl module output.
+
+PERLMOD_LATEX = NO
+
+# If the PERLMOD_PRETTY tag is set to YES the Perl module output will be 
+# nicely formatted so it can be parsed by a human reader.  This is useful 
+# if you want to understand what is going on.  On the other hand, if this 
+# tag is set to NO the size of the Perl module output will be much smaller 
+# and Perl will parse it just the same.
+
+PERLMOD_PRETTY = YES
+
+# The names of the make variables in the generated doxyrules.make file 
+# are prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX. 
+# This is useful so different doxyrules.make files included by the same 
+# Makefile don't overwrite each other's variables.
+
+PERLMOD_MAKEVAR_PREFIX = 
+
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor   
+#---------------------------------------------------------------------------
+
+# If the ENABLE_PREPROCESSING tag is set to YES (the default) Doxygen will 
+# evaluate all C-preprocessor directives found in the sources and include 
+# files.
+
+ENABLE_PREPROCESSING = YES
+
+# If the MACRO_EXPANSION tag is set to YES Doxygen will expand all macro 
+# names in the source code. If set to NO (the default) only conditional 
+# compilation will be performed. Macro expansion can be done in a controlled 
+# way by setting EXPAND_ONLY_PREDEF to YES.
+
+MACRO_EXPANSION = NO
+
+# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES 
+# then the macro expansion is limited to the macros specified with the 
+# PREDEFINED and EXPAND_AS_DEFINED tags.
+
+EXPAND_ONLY_PREDEF = NO
+
+# If the SEARCH_INCLUDES tag is set to YES (the default) the includes files 
+# in the INCLUDE_PATH (see below) will be search if a #include is found.
+
+SEARCH_INCLUDES = YES
+
+# The INCLUDE_PATH tag can be used to specify one or more directories that 
+# contain include files that are not input files but should be processed by 
+# the preprocessor.
+
+INCLUDE_PATH = 
+
+# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard 
+# patterns (like *.h and *.hpp) to filter out the header-files in the 
+# directories. If left blank, the patterns specified with FILE_PATTERNS will 
+# be used.
+
+INCLUDE_FILE_PATTERNS = 
+
+# The PREDEFINED tag can be used to specify one or more macro names that 
+# are defined before the preprocessor is started (similar to the -D option of 
+# gcc). The argument of the tag is a list of macros of the form: name 
+# or name=definition (no spaces). If the definition and the = are 
+# omitted =1 is assumed. To prevent a macro definition from being 
+# undefined via #undef or recursively expanded use the := operator 
+# instead of the = operator.
+
+PREDEFINED = 
+
+# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then 
+# this tag can be used to specify a list of macro names that should be expanded. 
+# The macro definition that is found in the sources will be used. 
+# Use the PREDEFINED tag if you want to use a different macro definition.
+
+EXPAND_AS_DEFINED = 
+
+# If the SKIP_FUNCTION_MACROS tag is set to YES (the default) then 
+# doxygen's preprocessor will remove all function-like macros that are alone 
+# on a line, have an all uppercase name, and do not end with a semicolon. Such 
+# function macros are typically used for boiler-plate code, and will confuse 
+# the parser if not removed.
+
+SKIP_FUNCTION_MACROS = YES
+
+#---------------------------------------------------------------------------
+# Configuration::additions related to external references   
+#---------------------------------------------------------------------------
+
+# The TAGFILES option can be used to specify one or more tagfiles. 
+# Optionally an initial location of the external documentation 
+# can be added for each tagfile. The format of a tag file without 
+# this location is as follows: 
+#   TAGFILES = file1 file2 ... 
+# Adding location for the tag files is done as follows: 
+#   TAGFILES = file1=loc1 "file2 = loc2" ... 
+# where "loc1" and "loc2" can be relative or absolute paths or 
+# URLs. If a location is present for each tag, the installdox tool 
+# does not have to be run to correct the links.
+# Note that each tag file must have a unique name
+# (where the name does NOT include the path)
+# If a tag file is not located in the directory in which doxygen 
+# is run, you must also specify the path to the tagfile here.
+
+TAGFILES = 
+
+# When a file name is specified after GENERATE_TAGFILE, doxygen will create 
+# a tag file that is based on the input files it reads.
+
+GENERATE_TAGFILE = $(DOCDIR)/$(PROJECT).tag
+
+# If the ALLEXTERNALS tag is set to YES all external classes will be listed 
+# in the class index. If set to NO only the inherited external classes 
+# will be listed.
+
+ALLEXTERNALS = NO
+
+# If the EXTERNAL_GROUPS tag is set to YES all external groups will be listed 
+# in the modules index. If set to NO, only the current project's groups will 
+# be listed.
+
+EXTERNAL_GROUPS = YES
+
+# The PERL_PATH should be the absolute path and name of the perl script 
+# interpreter (i.e. the result of `which perl').
+
+PERL_PATH = /usr/bin/perl
+
+#---------------------------------------------------------------------------
+# Configuration options related to the dot tool   
+#---------------------------------------------------------------------------
+
+# If the CLASS_DIAGRAMS tag is set to YES (the default) Doxygen will 
+# generate a inheritance diagram (in HTML, RTF and LaTeX) for classes with base 
+# or super classes. Setting the tag to NO turns the diagrams off. Note that 
+# this option is superseded by the HAVE_DOT option below. This is only a 
+# fallback. It is recommended to install and use dot, since it yields more 
+# powerful graphs.
+
+CLASS_DIAGRAMS = YES
+
+# If set to YES, the inheritance and collaboration graphs will hide 
+# inheritance and usage relations if the target is undocumented 
+# or is not a class.
+
+HIDE_UNDOC_RELATIONS = YES
+
+# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is 
+# available from the path. This tool is part of Graphviz, a graph visualization 
+# toolkit from AT&T and Lucent Bell Labs. The other options in this section 
+# have no effect if this option is set to NO (the default)
+
+HAVE_DOT = $(HAVE_DOT)
+
+# If the CLASS_GRAPH and HAVE_DOT tags are set to YES then doxygen 
+# will generate a graph for each documented class showing the direct and 
+# indirect inheritance relations. Setting this tag to YES will force the 
+# the CLASS_DIAGRAMS tag to NO.
+
+CLASS_GRAPH = YES
+
+# If the COLLABORATION_GRAPH and HAVE_DOT tags are set to YES then doxygen 
+# will generate a graph for each documented class showing the direct and 
+# indirect implementation dependencies (inheritance, containment, and 
+# class references variables) of the class with other documented classes.
+
+COLLABORATION_GRAPH = YES
+
+# If the GROUP_GRAPHS and HAVE_DOT tags are set to YES then doxygen 
+# will generate a graph for groups, showing the direct groups dependencies
+
+GROUP_GRAPHS = YES
+
+# If the UML_LOOK tag is set to YES doxygen will generate inheritance and 
+# collaboration diagrams in a style similar to the OMG's Unified Modeling 
+# Language.
+
+UML_LOOK = NO
+
+# If set to YES, the inheritance and collaboration graphs will show the 
+# relations between templates and their instances.
+
+TEMPLATE_RELATIONS = NO
+
+# If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDE_GRAPH, and HAVE_DOT 
+# tags are set to YES then doxygen will generate a graph for each documented 
+# file showing the direct and indirect include dependencies of the file with 
+# other documented files.
+
+INCLUDE_GRAPH = YES
+
+# If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDED_BY_GRAPH, and 
+# HAVE_DOT tags are set to YES then doxygen will generate a graph for each 
+# documented header file showing the documented files that directly or 
+# indirectly include this file.
+
+INCLUDED_BY_GRAPH = YES
+
+# If the CALL_GRAPH and HAVE_DOT tags are set to YES then doxygen will 
+# generate a call dependency graph for every global function or class method. 
+# Note that enabling this option will significantly increase the time of a run. 
+# So in most cases it will be better to enable call graphs for selected 
+# functions only using the \callgraph command.
+
+CALL_GRAPH = NO
+
+# If the CALLER_GRAPH and HAVE_DOT tags are set to YES then doxygen will 
+# generate a caller dependency graph for every global function or class method. 
+# Note that enabling this option will significantly increase the time of a run. 
+# So in most cases it will be better to enable caller graphs for selected 
+# functions only using the \callergraph command.
+
+CALLER_GRAPH = NO
+
+# If the GRAPHICAL_HIERARCHY and HAVE_DOT tags are set to YES then doxygen 
+# will graphical hierarchy of all classes instead of a textual one.
+
+GRAPHICAL_HIERARCHY = YES
+
+# If the DIRECTORY_GRAPH, SHOW_DIRECTORIES and HAVE_DOT tags are set to YES 
+# then doxygen will show the dependencies a directory has on other directories 
+# in a graphical way. The dependency relations are determined by the #include
+# relations between the files in the directories.
+
+DIRECTORY_GRAPH = YES
+
+# The DOT_IMAGE_FORMAT tag can be used to set the image format of the images 
+# generated by dot. Possible values are png, jpg, or gif
+# If left blank png will be used.
+
+DOT_IMAGE_FORMAT = png
+
+# The tag DOT_PATH can be used to specify the path where the dot tool can be 
+# found. If left blank, it is assumed the dot tool can be found in the path.
+
+DOT_PATH = $(DOT_PATH)
+
+# The DOTFILE_DIRS tag can be used to specify one or more directories that 
+# contain dot files that are included in the documentation (see the 
+# \dotfile command).
+
+DOTFILE_DIRS = 
+
+# The MAX_DOT_GRAPH_WIDTH tag can be used to set the maximum allowed width 
+# (in pixels) of the graphs generated by dot. If a graph becomes larger than 
+# this value, doxygen will try to truncate the graph, so that it fits within 
+# the specified constraint. Beware that most browsers cannot cope with very 
+# large images.
+
+MAX_DOT_GRAPH_WIDTH = 1024
+
+# The MAX_DOT_GRAPH_HEIGHT tag can be used to set the maximum allows height 
+# (in pixels) of the graphs generated by dot. If a graph becomes larger than 
+# this value, doxygen will try to truncate the graph, so that it fits within 
+# the specified constraint. Beware that most browsers cannot cope with very 
+# large images.
+
+MAX_DOT_GRAPH_HEIGHT = 1024
+
+# The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the 
+# graphs generated by dot. A depth value of 3 means that only nodes reachable 
+# from the root by following a path via at most 3 edges will be shown. Nodes 
+# that lay further from the root node will be omitted. Note that setting this 
+# option to 1 or 2 may greatly reduce the computation time needed for large 
+# code bases. Also note that a graph may be further truncated if the graph's 
+# image dimensions are not sufficient to fit the graph (see MAX_DOT_GRAPH_WIDTH 
+# and MAX_DOT_GRAPH_HEIGHT). If 0 is used for the depth value (the default), 
+# the graph is not depth-constrained.
+
+MAX_DOT_GRAPH_DEPTH = 0
+
+# Set the DOT_TRANSPARENT tag to YES to generate images with a transparent 
+# background. This is disabled by default, which results in a white background. 
+# Warning: Depending on the platform used, enabling this option may lead to 
+# badly anti-aliased labels on the edges of a graph (i.e. they become hard to 
+# read).
+
+DOT_TRANSPARENT = NO
+
+# Set the DOT_MULTI_TARGETS tag to YES allow dot to generate multiple output 
+# files in one run (i.e. multiple -o and -T options on the command line). This 
+# makes dot run faster, but since only newer versions of dot (>1.8.10) 
+# support this, this feature is disabled by default.
+
+DOT_MULTI_TARGETS = NO
+
+# If the GENERATE_LEGEND tag is set to YES (the default) Doxygen will 
+# generate a legend page explaining the meaning of the various boxes and 
+# arrows in the dot generated graphs.
+
+GENERATE_LEGEND = YES
+
+# If the DOT_CLEANUP tag is set to YES (the default) Doxygen will 
+# remove the intermediate dot files that are used to generate 
+# the various graphs.
+
+DOT_CLEANUP = YES
+
+#---------------------------------------------------------------------------
+# Configuration::additions related to the search engine   
+#---------------------------------------------------------------------------
+
+# The SEARCHENGINE tag specifies whether or not a search engine should be 
+# used. If set to NO the values of all tags below this one will be ignored.
+
+SEARCHENGINE = NO

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/src/c/configure.ac
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diff --git a/zookeeper-recipes/lock/src/c/configure.ac b/zookeeper-recipes/lock/src/c/configure.ac
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@@ -0,0 +1,82 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#                                               -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ(2.59)
+
+AC_INIT([zoolock], [3.2.0])
+
+AC_CONFIG_SRCDIR([include/zoo_lock.h])
+
+PACKAGE=zoolock
+VERSION=1.0
+
+AC_SUBST(PACKAGE)
+AC_SUBST(VERSION)
+
+BUILD_PATH="`pwd`"
+
+# Checks for programs.
+AC_LANG_CPLUSPLUS
+
+AM_INIT_AUTOMAKE([-Wall foreign])
+# Checks for libraries.
+
+#initialize Doxygen support
+DX_HTML_FEATURE(ON)
+DX_CHM_FEATURE(OFF)
+DX_CHI_FEATURE(OFF)
+DX_MAN_FEATURE(OFF)
+DX_RTF_FEATURE(OFF)
+DX_XML_FEATURE(OFF)
+DX_PDF_FEATURE(OFF)
+DX_PS_FEATURE(OFF)
+DX_INIT_DOXYGEN([zookeeper-locks],[c-doc.Doxyfile],[docs])
+
+  
+ZOOKEEPER_PATH=${BUILD_PATH}/../../../../../src/c
+ZOOKEEPER_LD=-L${BUILD_PATH}/../../../../../src/c\ -lzookeeper_mt
+
+AC_SUBST(ZOOKEEPER_PATH)
+AC_SUBST(ZOOKEEPER_LD)
+
+# Checks for header files.
+AC_HEADER_DIRENT
+AC_HEADER_STDC
+AC_CHECK_HEADERS([fcntl.h stdlib.h string.h sys/time.h unistd.h])
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_HEADER_STDBOOL
+AC_C_CONST
+AC_TYPE_UID_T
+AC_C_INLINE
+AC_TYPE_OFF_T
+AC_TYPE_SIZE_T
+AC_STRUCT_ST_BLOCKS
+AC_HEADER_TIME
+AC_C_VOLATILE
+AC_PROG_CC
+AC_PROG_LIBTOOL
+#check for cppunit 
+AM_PATH_CPPUNIT(1.10.2)
+# Checks for library functions.
+AC_FUNC_UTIME_NULL
+AC_CHECK_FUNCS([gettimeofday memset mkdir rmdir strdup strerror strstr strtol strtoul strtoull utime])
+
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT
+AC_C_VOLATILE

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/src/c/include/zoo_lock.h
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/src/c/include/zoo_lock.h b/zookeeper-recipes/lock/src/c/include/zoo_lock.h
new file mode 100644
index 0000000..5c06bbf
--- /dev/null
+++ b/zookeeper-recipes/lock/src/c/include/zoo_lock.h
@@ -0,0 +1,168 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef ZOOKEEPER_LOCK_H_
+#define ZOOKEEPER_LOCK_H_
+
+#include <zookeeper.h>
+#include <pthread.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+/**
+ * \brief the call back function called on status change of lock
+ * 
+ * the call back funtion is called with a rc of 0 if lock is acquired and 
+ * with an rc of 1 if the lock is released
+ * \param rc the value to let us know if its locked or unlocked
+ * \param cbdata the callback data that we passed when initializing 
+ * the zookeeper lock.
+ */
+
+typedef void (* zkr_lock_completion) (int rc, void* cbdata);
+
+/** 
+ * \file zoo_lock.h
+ * \brief zookeeper recipe for locking and leader election.
+ * this api implements a writelock on a given path in zookeeper.
+ * this api can also be used for leader election.
+ */
+
+struct zkr_lock_mutex {
+    zhandle_t *zh;
+    char *path;
+    struct ACL_vector *acl;
+    char *id;
+    void *cbdata;
+    zkr_lock_completion completion;
+    pthread_mutex_t pmutex;
+    int isOwner;
+    char* ownerid;
+};
+
+typedef struct zkr_lock_mutex zkr_lock_mutex_t;
+
+
+/**
+ * \brief initializing a zookeeper lock.
+ *
+ * this method instantiates the zookeeper mutex lock.
+ * \param mutex the mutex to initialize
+ * \param zh the zookeeper handle to use
+ * \param path the path in zookeeper to use for locking
+ * \param acl the acls to use in zookeeper.
+ * \return return 0 if successful.
+ */
+ZOOAPI int zkr_lock_init(zkr_lock_mutex_t *mutex, zhandle_t* zh, 
+                      char* path, struct ACL_vector *acl);
+
+/**
+ * \brief initializing a zookeeper lock.
+ *
+ *
+ * this method instantiates the zookeeper mutex lock with
+ * a completion function.
+ * 
+ * \param mutex the mutex to initialize
+ * \param zh the zookeeper handle to use
+ * \param path the path in zookeeper to use for locking
+ * \param acl the acls to use in zookeeper.
+ * \param completion the callback thats called when lock 
+ * is acquired and released.
+ * \param cbdata the callback method is called with data
+ * \return return 0 if successful.
+ */
+ZOOAPI int zkr_lock_init_cb(zkr_lock_mutex_t *mutex, zhandle_t* zh,
+                      char* path, struct ACL_vector *acl, 
+                      zkr_lock_completion completion, void* cbdata);
+
+/**
+ * \brief lock the zookeeper mutex
+ *
+ * this method tries locking the mutex
+ * \param mutex the zookeeper mutex
+ * \return return 0 if there is no error. check 
+ * with zkr_lock_isowner() if you have the lock
+ */
+ZOOAPI int zkr_lock_lock(zkr_lock_mutex_t *mutex);
+
+/**
+ * \brief unlock the zookeeper mutex
+ *
+ * this method unlocks the zookeeper mutex
+ * \param mutex the zookeeper mutex
+ * \return return 0 if there is not error in executing unlock.
+ * else returns non zero
+ */
+ZOOAPI int zkr_lock_unlock(zkr_lock_mutex_t *mutex);
+
+/**
+ * \brief set the callback function for zookeeper mutex
+ * 
+ * this method sets the callback for zookeeper mutex
+ * \param mutex the zookeeper mutex
+ * \param callback the call back completion function
+ */
+ZOOAPI void zkr_lock_setcallback(zkr_lock_mutex_t *mutex, 
+                           zkr_lock_completion completion);
+
+/**
+ * \brief get the callback function for zookeeper mutex
+ *
+ * this method gets the callback funtion for zookeeper mutex
+ * \param mutex the zookeeper mutex
+ * \return the lock completion function
+ */
+ZOOAPI zkr_lock_completion zkr_lock_getcallback(zkr_lock_mutex_t *mutex);
+
+/**
+ * \brief destroy the mutex 
+ * this method free the mutex
+ * \param mutex destroy the zookepeer lock.
+ * \return return 0 if destroyed.
+ */
+ZOOAPI int zkr_lock_destroy(zkr_lock_mutex_t* mutex);
+
+/**
+ * \brief return the parent path this mutex is using
+ * this method returns the parent path
+ * \param mutex the mutex
+ * \return return the parent path
+ */
+ZOOAPI char* zkr_lock_getpath(zkr_lock_mutex_t *mutex);
+
+/**
+ * \brief return if this mutex is owner of the lock
+ * this method returns if its owner or not
+ * \param mutex the mutex
+ * \return return true if is owner and false if not
+ */
+ZOOAPI int zkr_lock_isowner(zkr_lock_mutex_t *mutex);
+
+/**
+ * \brief return the id for this mutex
+ * this mutex retunrns the id string 
+ * \param mutex the mutex
+ * \return the id for this mutex
+ */
+ZOOAPI char* zkr_lock_getid(zkr_lock_mutex_t *mutex);
+
+#ifdef __cplusplus
+}
+#endif
+#endif  //ZOOKEEPER_LOCK_H_

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/src/c/src/zoo_lock.c
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/src/c/src/zoo_lock.c b/zookeeper-recipes/lock/src/c/src/zoo_lock.c
new file mode 100644
index 0000000..8a6d817
--- /dev/null
+++ b/zookeeper-recipes/lock/src/c/src/zoo_lock.c
@@ -0,0 +1,396 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifdef DLL_EXPORT
+#define USE_STATIC_LIB
+#endif
+
+#if defined(__CYGWIN__)
+#define USE_IPV6
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <zookeeper_log.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/socket.h>
+#include <limits.h>
+#include <zoo_lock.h>
+#include <stdbool.h>
+#ifdef HAVE_SYS_UTSNAME_H
+#include <sys/utsname.h>
+#endif
+
+#ifdef HAVE_GETPWUID_R
+#include <pwd.h>
+#endif
+
+#define IF_DEBUG(x) if (logLevel==ZOO_LOG_LEVEL_DEBUG) {x;}
+
+ 
+ZOOAPI int zkr_lock_init(zkr_lock_mutex_t* mutex, zhandle_t* zh,
+                      char* path, struct ACL_vector *acl) {
+    mutex->zh = zh;
+    mutex->path = path;
+    mutex->acl = acl;
+    mutex->completion = NULL;
+    mutex->cbdata = NULL;
+    mutex->id = NULL;
+    mutex->ownerid = NULL;
+    mutex->isOwner = 0;
+    pthread_mutex_init(&(mutex->pmutex), NULL);
+    return 0;
+}
+
+ZOOAPI int zkr_lock_init_cb(zkr_lock_mutex_t *mutex, zhandle_t* zh,
+                         char *path, struct ACL_vector *acl,
+                         zkr_lock_completion completion, void* cbdata) {
+    mutex->zh = zh;
+    mutex->path = path;
+    mutex->acl = acl;
+    mutex->completion = completion;
+    mutex->cbdata = cbdata;
+    mutex->isOwner = 0;
+    mutex->ownerid = NULL;
+    mutex->id = NULL;
+    pthread_mutex_init(&(mutex->pmutex), NULL);
+    return 0;
+}
+
+/**
+ * unlock the mutex
+ */
+ZOOAPI int zkr_lock_unlock(zkr_lock_mutex_t *mutex) {
+    pthread_mutex_lock(&(mutex->pmutex));
+    zhandle_t *zh = mutex->zh;
+    if (mutex->id != NULL) {
+        int len = strlen(mutex->path) + strlen(mutex->id) + 2;
+        char buf[len];
+        sprintf(buf, "%s/%s", mutex->path, mutex->id);
+        int ret = 0;
+        int count = 0;
+        struct timespec ts;
+        ts.tv_sec = 0;
+        ts.tv_nsec = (.5)*1000000;
+        ret = ZCONNECTIONLOSS;
+        while (ret == ZCONNECTIONLOSS && (count < 3)) {
+            ret = zoo_delete(zh, buf, -1);
+            if (ret == ZCONNECTIONLOSS) {
+                LOG_DEBUG(("connectionloss while deleting the node"));
+                nanosleep(&ts, 0);
+                count++;
+            }
+        }
+        if (ret == ZOK || ret == ZNONODE) {
+            zkr_lock_completion completion = mutex->completion;
+            if (completion != NULL) {
+                completion(1, mutex->cbdata);
+            }
+
+            free(mutex->id);
+            mutex->id = NULL;
+            pthread_mutex_unlock(&(mutex->pmutex));
+            return 0;
+        }
+        LOG_WARN(("not able to connect to server - giving up"));
+        pthread_mutex_unlock(&(mutex->pmutex));
+        return ZCONNECTIONLOSS;
+    }
+    pthread_mutex_unlock(&(mutex->pmutex));
+    return ZSYSTEMERROR;
+}
+
+static void free_String_vector(struct String_vector *v) {
+    if (v->data) {
+        int32_t i;
+        for (i=0; i<v->count; i++) {
+            free(v->data[i]);
+        }
+        free(v->data);
+        v->data = 0;
+    }
+}
+
+static int vstrcmp(const void* str1, const void* str2) {
+    const char **a = (const char**)str1;
+    const char **b = (const char**) str2;
+    return strcmp(strrchr(*a, '-')+1, strrchr(*b, '-')+1); 
+} 
+
+static void sort_children(struct String_vector *vector) {
+    qsort( vector->data, vector->count, sizeof(char*), &vstrcmp);
+}
+        
+static char* child_floor(char **sorted_data, int len, char *element) {
+    char* ret = NULL;
+    int i =0;
+    for (i=0; i < len; i++) {
+        if (strcmp(sorted_data[i], element) < 0) {
+            ret = sorted_data[i];
+        }
+    }
+    return ret;
+}
+
+static void lock_watcher_fn(zhandle_t* zh, int type, int state,
+                            const char* path, void *watcherCtx) {
+    //callback that we registered 
+    //should be called
+    zkr_lock_lock((zkr_lock_mutex_t*) watcherCtx);
+}
+
+/**
+ * get the last name of the path
+ */
+static char* getName(char* str) {
+    char* name = strrchr(str, '/');
+    if (name == NULL) 
+        return NULL;
+    return strdup(name + 1);
+}
+
+/**
+ * just a method to retry get children
+ */
+static int retry_getchildren(zhandle_t *zh, char* path, struct String_vector *vector, 
+                             struct timespec *ts, int retry) {
+    int ret = ZCONNECTIONLOSS;
+    int count = 0;
+    while (ret == ZCONNECTIONLOSS && count < retry) {
+        ret = zoo_get_children(zh, path, 0, vector);
+        if (ret == ZCONNECTIONLOSS) {
+            LOG_DEBUG(("connection loss to the server"));
+            nanosleep(ts, 0);
+            count++;
+        }
+    }
+    return ret;
+}
+
+/** see if our node already exists
+ * if it does then we dup the name and 
+ * return it
+ */
+static char* lookupnode(struct String_vector *vector, char *prefix) {
+    char *ret = NULL;
+    if (vector->data) {
+        int i = 0;
+        for (i = 0; i < vector->count; i++) {
+            char* child = vector->data[i];
+            if (strncmp(prefix, child, strlen(prefix)) == 0) {
+                ret = strdup(child);
+                break;
+            }
+        }
+    }
+    return ret;
+}
+
+/** retry zoo_wexists
+ */
+static int retry_zoowexists(zhandle_t *zh, char* path, watcher_fn watcher, void* ctx,
+                            struct Stat *stat, struct timespec *ts, int retry) {
+    int ret = ZCONNECTIONLOSS;
+    int count = 0;
+    while (ret == ZCONNECTIONLOSS && count < retry) {
+        ret = zoo_wexists(zh, path, watcher, ctx, stat);
+        if (ret == ZCONNECTIONLOSS) {
+            LOG_DEBUG(("connectionloss while setting watch on my predecessor"));
+            nanosleep(ts, 0);
+            count++;
+        }
+    }
+    return ret;
+}
+                        
+/**
+ * the main code that does the zookeeper leader 
+ * election. this code creates its own ephemeral 
+ * node on the given path and sees if its the first
+ * one on the list and claims to be a leader if and only
+ * if its the first one of children in the paretn path
+ */
+static int zkr_lock_operation(zkr_lock_mutex_t *mutex, struct timespec *ts) {
+    zhandle_t *zh = mutex->zh;
+    char *path = mutex->path;
+    char *id = mutex->id;
+    struct Stat stat;
+    char* owner_id = NULL;
+    int retry = 3;
+    do {
+        const clientid_t *cid = zoo_client_id(zh);
+        // get the session id
+        int64_t session = cid->client_id;
+        char prefix[30];
+        int ret = 0;
+#if defined(__x86_64__)
+        snprintf(prefix, 30, "x-%016lx-", session);
+#else 
+        snprintf(prefix, 30, "x-%016llx-", session);
+#endif
+        struct String_vector vectorst;
+        vectorst.data = NULL;
+        vectorst.count = 0;
+        ret = ZCONNECTIONLOSS;
+        ret = retry_getchildren(zh, path, &vectorst, ts, retry);
+        if (ret != ZOK)
+            return ret;
+        struct String_vector *vector = &vectorst;
+        mutex->id = lookupnode(vector, prefix);
+        free_String_vector(vector);
+        if (mutex->id == NULL) {
+            int len = strlen(path) + strlen(prefix) + 2;
+            char buf[len];
+            char retbuf[len+20];
+            snprintf(buf, len, "%s/%s", path, prefix);
+            ret = ZCONNECTIONLOSS;
+            ret = zoo_create(zh, buf, NULL, 0,  mutex->acl, 
+                             ZOO_EPHEMERAL|ZOO_SEQUENCE, retbuf, (len+20));
+            
+            // do not want to retry the create since 
+            // we would end up creating more than one child
+            if (ret != ZOK) {
+                LOG_WARN(("could not create zoo node %s", buf));
+                return ret;
+            }
+            mutex->id = getName(retbuf);
+        }
+        
+        if (mutex->id != NULL) {
+            ret = ZCONNECTIONLOSS;
+            ret = retry_getchildren(zh, path, vector, ts, retry);
+            if (ret != ZOK) {
+                LOG_WARN(("could not connect to server"));
+                return ret;
+            }
+            //sort this list
+            sort_children(vector);
+            owner_id = vector->data[0];
+            mutex->ownerid = strdup(owner_id);
+            id = mutex->id;
+            char* lessthanme = child_floor(vector->data, vector->count, id);
+            if (lessthanme != NULL) {
+                int flen = strlen(mutex->path) + strlen(lessthanme) + 2;
+                char last_child[flen];
+                sprintf(last_child, "%s/%s",mutex->path, lessthanme);
+                ret = ZCONNECTIONLOSS;
+                ret = retry_zoowexists(zh, last_child, &lock_watcher_fn, mutex, 
+                                       &stat, ts, retry);
+                // cannot watch my predecessor i am giving up
+                // we need to be able to watch the predecessor 
+                // since if we do not become a leader the others 
+                // will keep waiting
+                if (ret != ZOK) {
+                    free_String_vector(vector);
+                    LOG_WARN(("unable to watch my predecessor"));
+                    ret = zkr_lock_unlock(mutex);
+                    while (ret == 0) {
+                        //we have to give up our leadership
+                        // since we cannot watch out predecessor
+                        ret = zkr_lock_unlock(mutex);
+                    }
+                    return ret;
+                }
+                // we are not the owner of the lock
+                mutex->isOwner = 0;
+            }
+            else {
+                // this is the case when we are the owner 
+                // of the lock
+                if (strcmp(mutex->id, owner_id) == 0) {
+                    LOG_DEBUG(("got the zoo lock owner - %s", mutex->id));
+                    mutex->isOwner = 1;
+                    if (mutex->completion != NULL) {
+                        mutex->completion(0, mutex->cbdata);
+                    }
+                    return ZOK;
+                }
+            }
+            free_String_vector(vector);
+            return ZOK;
+        }
+    } while (mutex->id == NULL);
+    return ZOK;
+}
+
+ZOOAPI int zkr_lock_lock(zkr_lock_mutex_t *mutex) {
+    pthread_mutex_lock(&(mutex->pmutex));
+    zhandle_t *zh = mutex->zh;
+    char *path = mutex->path;
+    struct Stat stat;
+    int exists = zoo_exists(zh, path, 0, &stat);
+    int count = 0;
+    struct timespec ts;
+    ts.tv_sec = 0;
+    ts.tv_nsec = (.5)*1000000;
+    // retry to see if the path exists and 
+    // and create if the path does not exist
+    while ((exists == ZCONNECTIONLOSS || exists == ZNONODE) && (count <4)) {
+        count++;
+        // retry the operation
+        if (exists == ZCONNECTIONLOSS) 
+            exists = zoo_exists(zh, path, 0, &stat);
+        else if (exists == ZNONODE) 
+            exists = zoo_create(zh, path, NULL, 0, mutex->acl, 0, NULL, 0);
+        nanosleep(&ts, 0);
+          
+    }
+
+    // need to check if we cannot still access the server 
+    int check_retry = ZCONNECTIONLOSS;
+    count = 0;
+    while (check_retry != ZOK && count <4) {
+        check_retry = zkr_lock_operation(mutex, &ts);
+        if (check_retry != ZOK) {
+            nanosleep(&ts, 0);
+            count++;
+        }
+    }
+    pthread_mutex_unlock(&(mutex->pmutex));
+    return zkr_lock_isowner(mutex);
+}
+
+                    
+ZOOAPI char* zkr_lock_getpath(zkr_lock_mutex_t *mutex) {
+    return mutex->path;
+}
+
+ZOOAPI int zkr_lock_isowner(zkr_lock_mutex_t *mutex) {
+    return (mutex->id != NULL && mutex->ownerid != NULL 
+            && (strcmp(mutex->id, mutex->ownerid) == 0));
+}
+
+ZOOAPI char* zkr_lock_getid(zkr_lock_mutex_t *mutex) {
+    return mutex->ownerid;
+}
+
+ZOOAPI int zkr_lock_destroy(zkr_lock_mutex_t* mutex) {
+    if (mutex->id) 
+        free(mutex->id);
+    mutex->path = NULL;
+    mutex->acl = NULL;
+    mutex->completion = NULL;
+    pthread_mutex_destroy(&(mutex->pmutex));
+    mutex->isOwner = 0;
+    if (mutex->ownerid) 
+        free(mutex->ownerid);
+    return 0;
+}
+

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/src/c/tests/TestClient.cc
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/src/c/tests/TestClient.cc b/zookeeper-recipes/lock/src/c/tests/TestClient.cc
new file mode 100644
index 0000000..2cc56cf
--- /dev/null
+++ b/zookeeper-recipes/lock/src/c/tests/TestClient.cc
@@ -0,0 +1,201 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <cppunit/extensions/HelperMacros.h>
+
+#include <stdlib.h>
+#include <sys/select.h>
+#include <cppunit/TestAssert.h>
+
+
+using namespace std;
+
+#include <cstring>
+#include <list>
+
+#include <zookeeper.h>
+#include <zoo_lock.h>
+
+static void yield(zhandle_t *zh, int i)
+{
+    sleep(i);
+}
+
+typedef struct evt {
+    string path;
+    int type;
+} evt_t;
+
+typedef struct watchCtx {
+private:
+    list<evt_t> events;
+public:
+    bool connected;
+    zhandle_t *zh;
+    
+    watchCtx() {
+        connected = false;
+        zh = 0;
+    }
+    ~watchCtx() {
+        if (zh) {
+            zookeeper_close(zh);
+            zh = 0;
+        }
+    }
+
+    evt_t getEvent() {
+        evt_t evt;
+        evt = events.front();
+        events.pop_front();
+        return evt;
+    }
+
+    int countEvents() {
+        int count;
+        count = events.size();
+        return count;
+    }
+
+    void putEvent(evt_t evt) {
+        events.push_back(evt);
+    }
+
+    bool waitForConnected(zhandle_t *zh) {
+        time_t expires = time(0) + 10;
+        while(!connected && time(0) < expires) {
+            yield(zh, 1);
+        }
+        return connected;
+    }
+    bool waitForDisconnected(zhandle_t *zh) {
+        time_t expires = time(0) + 15;
+        while(connected && time(0) < expires) {
+            yield(zh, 1);
+        }
+        return !connected;
+    }
+} watchctx_t; 
+
+class Zookeeper_locktest : public CPPUNIT_NS::TestFixture
+{
+    CPPUNIT_TEST_SUITE(Zookeeper_locktest);
+    CPPUNIT_TEST(testlock);
+    CPPUNIT_TEST_SUITE_END();
+
+    static void watcher(zhandle_t *, int type, int state, const char *path,void*v){
+        watchctx_t *ctx = (watchctx_t*)v;
+
+        if (state == ZOO_CONNECTED_STATE) {
+            ctx->connected = true;
+        } else {
+            ctx->connected = false;
+        }
+        if (type != ZOO_SESSION_EVENT) {
+            evt_t evt;
+            evt.path = path;
+            evt.type = type;
+            ctx->putEvent(evt);
+        }
+    }
+
+    static const char hostPorts[];
+
+    const char *getHostPorts() {
+        return hostPorts;
+    }
+
+    zhandle_t *createClient(watchctx_t *ctx) {
+        zhandle_t *zk = zookeeper_init(hostPorts, watcher, 10000, 0,
+                                       ctx, 0);
+        ctx->zh = zk;
+        sleep(1);
+        return zk;
+    }
+    
+public:
+
+#define ZKSERVER_CMD "./tests/zkServer.sh"
+
+    void setUp()
+    {
+        char cmd[1024];
+        sprintf(cmd, "%s startClean %s", ZKSERVER_CMD, getHostPorts());
+        CPPUNIT_ASSERT(system(cmd) == 0);
+    }
+    
+
+    void startServer() {
+        char cmd[1024];
+        sprintf(cmd, "%s start %s", ZKSERVER_CMD, getHostPorts());
+        CPPUNIT_ASSERT(system(cmd) == 0);
+    }
+
+    void stopServer() {
+        tearDown();
+    }
+
+    void tearDown()
+    {
+        char cmd[1024];
+        sprintf(cmd, "%s stop %s", ZKSERVER_CMD, getHostPorts());
+        CPPUNIT_ASSERT(system(cmd) == 0);
+    }
+    
+
+    void testlock()
+    {
+        watchctx_t ctx;
+        int rc;
+        struct Stat stat;
+        char buf[1024];
+        int blen;
+        struct String_vector strings;
+        const char *testName;
+        zkr_lock_mutex_t mutexes[3];
+        int count = 3;
+        int i = 0;
+        char* path = "/test-lock";
+        for (i=0; i< 3; i++) {
+            zhandle_t *zh = createClient(&ctx);
+            zkr_lock_init(&mutexes[i], zh, path, &ZOO_OPEN_ACL_UNSAFE);
+            zkr_lock_lock(&mutexes[i]);
+        }
+        sleep(30);
+        zkr_lock_mutex leader = mutexes[0];
+        zkr_lock_mutex mutex;
+        int ret = strcmp(leader.id, leader.ownerid);
+        CPPUNIT_ASSERT(ret == 0);
+        for(i=1; i < count; i++) {
+            mutex = mutexes[i];
+            CPPUNIT_ASSERT(strcmp(mutex.id, mutex.ownerid) != 0);
+        } 
+        zkr_lock_unlock(&leader);
+        sleep(30);
+        zkr_lock_mutex secondleader = mutexes[1];
+        CPPUNIT_ASSERT(strcmp(secondleader.id , secondleader.ownerid) == 0);
+        for (i=2; i<count; i++) {
+            mutex = mutexes[i];
+            CPPUNIT_ASSERT(strcmp(mutex.id, mutex.ownerid) != 0);
+        }
+    }
+
+};
+
+const char Zookeeper_locktest::hostPorts[] = "127.0.0.1:22181";
+CPPUNIT_TEST_SUITE_REGISTRATION(Zookeeper_locktest);

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/src/c/tests/TestDriver.cc
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/src/c/tests/TestDriver.cc b/zookeeper-recipes/lock/src/c/tests/TestDriver.cc
new file mode 100644
index 0000000..2b818f4
--- /dev/null
+++ b/zookeeper-recipes/lock/src/c/tests/TestDriver.cc
@@ -0,0 +1,114 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <string>
+#include <cppunit/TestRunner.h>
+#include <cppunit/CompilerOutputter.h>
+#include <cppunit/TestResult.h>
+#include <cppunit/TestResultCollector.h>
+#include <cppunit/TextTestProgressListener.h>
+#include <cppunit/BriefTestProgressListener.h>
+#include <cppunit/extensions/TestFactoryRegistry.h>
+#include <stdexcept>
+#include <cppunit/Exception.h>
+#include <cppunit/TestFailure.h>
+#include <cppunit/XmlOutputter.h>
+#include <fstream>
+
+#include "Util.h"
+
+using namespace std;
+
+CPPUNIT_NS_BEGIN
+
+class EclipseOutputter: public CompilerOutputter
+{
+public:
+  EclipseOutputter(TestResultCollector *result,ostream &stream):
+        CompilerOutputter(result,stream,"%p:%l: "),stream_(stream)
+    {
+    }
+    virtual void printFailedTestName( TestFailure *failure ){}
+    virtual void printFailureMessage( TestFailure *failure )
+    {
+      stream_<<": ";
+      Message msg = failure->thrownException()->message();
+      stream_<< msg.shortDescription();
+
+      string text;
+      for(int i=0; i<msg.detailCount();i++){
+          text+=msg.detailAt(i);
+          if(i+1!=msg.detailCount())
+              text+=", ";
+      }
+      if(text.length()!=0)
+          stream_ <<" ["<<text<<"]";
+      stream_<<"\n";
+    }
+    ostream& stream_;
+};
+
+CPPUNIT_NS_END
+
+int main( int argc, char* argv[] ) { 
+   // if command line contains "-ide" then this is the post build check
+   // => the output must be in the compiler error format.
+   //bool selfTest = (argc > 1) && (std::string("-ide") == argv[1]);
+   globalTestConfig.addConfigFromCmdLine(argc,argv);
+
+   // Create the event manager and test controller
+   CPPUNIT_NS::TestResult controller;
+   // Add a listener that colllects test result
+   CPPUNIT_NS::TestResultCollector result;
+   controller.addListener( &result );
+   
+   // Add a listener that print dots as tests run.
+   // CPPUNIT_NS::TextTestProgressListener progress;
+   CPPUNIT_NS::BriefTestProgressListener progress;
+   controller.addListener( &progress );
+ 
+   CPPUNIT_NS::TestRunner runner;
+   runner.addTest( CPPUNIT_NS::TestFactoryRegistry::getRegistry().makeTest() );
+ 
+   try
+   {
+     cout << "Running "  <<  globalTestConfig.getTestName();
+     runner.run( controller, globalTestConfig.getTestName());
+     cout<<endl;
+
+     // Print test in a compiler compatible format.
+     CPPUNIT_NS::EclipseOutputter outputter( &result,cout);
+     outputter.write(); 
+
+ // Uncomment this for XML output
+#ifdef ENABLE_XML_OUTPUT
+     std::ofstream file( "tests.xml" );
+     CPPUNIT_NS::XmlOutputter xml( &result, file );
+     xml.setStyleSheet( "report.xsl" );
+     xml.write();
+     file.close();
+#endif
+   }
+   catch ( std::invalid_argument &e )  // Test path not resolved
+   {
+     cout<<"\nERROR: "<<e.what()<<endl;
+     return 0;
+   }
+
+   return result.wasSuccessful() ? 0 : 1;
+ }

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/src/c/tests/Util.cc
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/src/c/tests/Util.cc b/zookeeper-recipes/lock/src/c/tests/Util.cc
new file mode 100644
index 0000000..26a9a09
--- /dev/null
+++ b/zookeeper-recipes/lock/src/c/tests/Util.cc
@@ -0,0 +1,30 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "Util.h"
+
+const std::string EMPTY_STRING;
+
+TestConfig globalTestConfig;
+
+void millisleep(int ms){
+    timespec ts;
+    ts.tv_sec=ms/1000;
+    ts.tv_nsec=(ms%1000)*1000000; // to nanoseconds
+    nanosleep(&ts,0);
+}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/src/c/tests/Util.h
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/src/c/tests/Util.h b/zookeeper-recipes/lock/src/c/tests/Util.h
new file mode 100644
index 0000000..95f5420
--- /dev/null
+++ b/zookeeper-recipes/lock/src/c/tests/Util.h
@@ -0,0 +1,134 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef UTIL_H_
+#define UTIL_H_
+
+#include <map>
+#include <vector>
+#include <string>
+
+// number of elements in array
+#define COUNTOF(array) sizeof(array)/sizeof(array[0])
+
+#define DECLARE_WRAPPER(ret,sym,sig) \
+    extern "C" ret __real_##sym sig; \
+    extern "C" ret __wrap_##sym sig
+
+#define CALL_REAL(sym,params) \
+    __real_##sym params
+
+// must include "src/zookeeper_log.h" to be able to use this macro
+#define TEST_TRACE(x) \
+    log_message(3,__LINE__,__func__,format_log_message x)
+
+extern const std::string EMPTY_STRING;
+
+// *****************************************************************************
+// A bit of wizardry to get to the bare type from a reference or a pointer 
+// to the type
+template <class T>
+struct TypeOp {
+    typedef T BareT;
+    typedef T ArgT;
+};
+
+// partial specialization for reference types
+template <class T>
+struct TypeOp<T&>{
+    typedef T& ArgT;
+    typedef typename TypeOp<T>::BareT BareT;
+};
+
+// partial specialization for pointers
+template <class T>
+struct TypeOp<T*>{
+    typedef T* ArgT;
+    typedef typename TypeOp<T>::BareT BareT;
+};
+
+// *****************************************************************************
+// Container utilities
+
+template <class K, class V>
+void putValue(std::map<K,V>& map,const K& k, const V& v){
+    typedef std::map<K,V> Map;
+    typename Map::const_iterator it=map.find(k);
+    if(it==map.end())
+        map.insert(typename Map::value_type(k,v));
+    else
+        map[k]=v;
+}
+
+template <class K, class V>
+bool getValue(const std::map<K,V>& map,const K& k,V& v){
+    typedef std::map<K,V> Map;
+    typename Map::const_iterator it=map.find(k);
+    if(it==map.end())
+        return false;
+    v=it->second;
+    return true;
+}
+
+// *****************************************************************************
+// misc utils
+
+// millisecond sleep
+void millisleep(int ms);
+// evaluate given predicate until it returns true or the timeout 
+// (in millis) has expired
+template<class Predicate>
+int ensureCondition(const Predicate& p,int timeout){
+    int elapsed=0;
+    while(!p() && elapsed<timeout){
+        millisleep(2);
+        elapsed+=2;
+    }
+    return elapsed;
+};
+
+// *****************************************************************************
+// test global configuration data 
+class TestConfig{
+    typedef std::vector<std::string> CmdLineOptList;
+public:
+    typedef CmdLineOptList::const_iterator const_iterator;
+    TestConfig(){}
+    ~TestConfig(){}
+    void addConfigFromCmdLine(int argc, char* argv[]){
+        if(argc>=2)
+            testName_=argv[1];
+        for(int i=2; i<argc;++i)
+            cmdOpts_.push_back(argv[i]);
+    }
+    const_iterator getExtraOptBegin() const {return cmdOpts_.begin();}
+    const_iterator getExtraOptEnd() const {return cmdOpts_.end();}
+    size_t getExtraOptCount() const {
+        return cmdOpts_.size();
+    }
+    const std::string& getTestName() const {
+        return testName_=="all"?EMPTY_STRING:testName_;
+    }
+private:
+    CmdLineOptList cmdOpts_;
+    std::string testName_;
+};
+
+extern TestConfig globalTestConfig;
+
+#endif /*UTIL_H_*/


[06/10] zookeeper git commit: ZOOKEEPER-3033: branch-3.4 - MAVEN MIGRATION - Step 1.2 - zk-recipes

Posted by an...@apache.org.
http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/queue/src/c/include/zoo_queue.h
----------------------------------------------------------------------
diff --git a/src/recipes/queue/src/c/include/zoo_queue.h b/src/recipes/queue/src/c/include/zoo_queue.h
deleted file mode 100644
index ccc4602..0000000
--- a/src/recipes/queue/src/c/include/zoo_queue.h
+++ /dev/null
@@ -1,118 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ZOOKEEPER_QUEUE_H_
-#define ZOOKEEPER_QUEUE_H_
-
-#include <zookeeper.h>
-#include <pthread.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/** 
- * \file zoo_queue.h
- * \brief zookeeper recipe for queues.
- */
-
-
-struct zkr_queue {
-    zhandle_t *zh;
-    char *path;
-    struct ACL_vector *acl;
-    pthread_mutex_t pmutex;
-    char *node_name;
-    int node_name_length;
-    char *cached_create_path;
-};
-
-typedef struct zkr_queue zkr_queue_t;
-
-
-/**
- * \brief initializes a zookeeper queue
- *
- * this method instantiates a zookeeper queue
- * \param queue the zookeeper queue to initialize
- * \param zh the zookeeper handle to use
- * \param path the path in zookeeper to use for the queue 
- * \param acl the acl to use in zookeeper.
- * \return return 0 if successful.  
- */
-ZOOAPI int zkr_queue_init(zkr_queue_t *queue, zhandle_t* zh, char* path, struct ACL_vector *acl);
-
-/**
- * \brief adds an element to a zookeeper queue
- *
- * this method adds an element to the back of a zookeeper queue.
- * \param queue the zookeeper queue to add the element to
- * \param data a pointer to a data buffer
- * \param buffer_len the length of the buffer
- * \return returns 0 (ZOK) if successful, otherwise returns a zookeeper error code.
- */
-ZOOAPI int zkr_queue_offer(zkr_queue_t *queue, const char *data, int buffer_len);
-
-/**
- * \brief returns the head of a zookeeper queue 
- *
- * this method returns the head of a zookeeper queue without removing it.
- * \param queue the zookeeper queue to add the element to
- * \param buffer a pointer to a data buffer
- * \param buffer_len a pointer to the length of the buffer
- * \return returns 0 (ZOK) and sets *buffer_len to the length of data written if successful (-1 if the queue is empty). Otherwise it will set *buffer_len to -1 and return a zookeeper error code. 
- */
-ZOOAPI int zkr_queue_element(zkr_queue_t *queue, char *buffer, int *buffer_len);
-
-/**
- * \brief returns the head of a zookeeper queue 
- *
- * this method returns the head of a zookeeper queue without removing it.
- * \param queue the zookeeper queue to get the head of
- * \param buffer a pointer to a data buffer
- * \param buffer_len a pointer to the length of the buffer
- * \return returns 0 (ZOK) and sets *buffer_len to the length of data written if successful (-1 if the queue is empty). Otherwise it will set *buffer_len to -1 and return a zookeeper error code. 
- */
-ZOOAPI int zkr_queue_remove(zkr_queue_t *queue, char *buffer, int *buffer_len);
-
-/**
- * \brief removes and returns the head of a zookeeper queue, blocks if necessary 
- *
- * this method returns the head of a zookeeper queue without removing it.
- * \param queue the zookeeper queue to remove and return the head of 
- * \param buffer a pointer to a data buffer
- * \param buffer_len a pointer to the length of the buffer
- * \return returns 0 (ZOK) and sets *buffer_len to the length of data written if successful. Otherwise it will set *buffer_len to -1 and return a zookeeper error code. 
- */
-ZOOAPI int zkr_queue_take(zkr_queue_t *queue, char *buffer, int *buffer_len);
-
-/**
- * \brief destroys a zookeeper queue structure 
- *
- * this destroys a zookeeper queue structure, this is only a local operation and will not affect
- * the state of the queue on the zookeeper server.
- * \param queue the zookeeper queue to destroy
- */
-void zkr_queue_destroy(zkr_queue_t *queue);
-
-
-#ifdef __cplusplus
-}
-#endif
-#endif  //ZOOKEEPER_QUEUE_H_

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/queue/src/c/src/zoo_queue.c
----------------------------------------------------------------------
diff --git a/src/recipes/queue/src/c/src/zoo_queue.c b/src/recipes/queue/src/c/src/zoo_queue.c
deleted file mode 100644
index 89ec24b..0000000
--- a/src/recipes/queue/src/c/src/zoo_queue.c
+++ /dev/null
@@ -1,442 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifdef DLL_EXPORT
-#define USE_STATIC_LIB
-#endif
-
-#if defined(__CYGWIN__)
-#define USE_IPV6
-#endif
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <zookeeper_log.h>
-#include <time.h>
-#include <sys/time.h>
-#include <sys/socket.h>
-#include <limits.h>
-#include <zoo_queue.h>
-#include <stdbool.h>
-#ifdef HAVE_SYS_UTSNAME_H
-#include <sys/utsname.h>
-#endif
-
-#ifdef HAVE_GETPWUID_R
-#include <pwd.h>
-#endif
-
-#define IF_DEBUG(x) if (logLevel==ZOO_LOG_LEVEL_DEBUG) {x;}
-
-
-static void free_String_vector(struct String_vector *v) {
-    if (v->data) {
-        int32_t i;
-        for (i=0; i<v->count; i++) {
-            free(v->data[i]);
-        }
-        free(v->data);
-        v->data = 0;
-    }
-}
-
-
-static int vstrcmp(const void* str1, const void* str2) {
-    const char **a = (const char**)str1;
-    const char **b = (const char**) str2;
-    return strcmp(*a, *b); 
-}
-
-static void sort_children(struct String_vector *vector) {
-    qsort( vector->data, vector->count, sizeof(char*), &vstrcmp);
-}
-
-
-static void concat_path_nodename_n(char *buffer, int len, const char *path, const char *node_name){
-    snprintf(buffer, len, "%s/%s", path, node_name); 
-}
-
-static char *concat_path_nodename(const char *path, const char *node_name){
-    int node_path_length = strlen(path) + 1+ strlen(node_name) +1;
-    char *node_path = (char *) malloc(node_path_length * sizeof(char));
-    concat_path_nodename_n(node_path, node_path_length, path, node_name);
-    return node_path;
-}  
-
-
-static void zkr_queue_cache_create_path(zkr_queue_t *queue){
-    if(queue->cached_create_path != NULL){
-        free(queue->cached_create_path);
-    }
-    queue->cached_create_path = concat_path_nodename(queue->path, queue->node_name);
-}
-
-ZOOAPI int zkr_queue_init(zkr_queue_t *queue, zhandle_t* zh, char* path, struct ACL_vector *acl){
-    queue->zh = zh;
-    queue->path = path;
-    queue->node_name = "qn-";
-    queue->node_name_length = strlen(queue->node_name);
-    queue->cached_create_path = NULL;
-    queue->acl = acl;
-    pthread_mutex_init(&(queue->pmutex), NULL);
-    zkr_queue_cache_create_path(queue);
-    return 0;
-}
-
-static ZOOAPI int create_queue_root(zkr_queue_t *queue){
-    return zoo_create(queue->zh, queue->path, NULL, 0, queue->acl, 0, NULL, 0 );
-}
-
-static int valid_child_name(zkr_queue_t *queue, const char *child_name){
-    return strncmp(queue->node_name, child_name, queue->node_name_length);
-}
-
-ZOOAPI int zkr_queue_offer(zkr_queue_t *queue, const char *data, int buffer_len){
-    for(;;){
-        int rc = zoo_create(queue->zh, queue->cached_create_path, data, buffer_len, queue->acl, ZOO_SEQUENCE, NULL, 0 );
-        switch(rc){
-            int create_root_rc;
-        case ZNONODE:
-            create_root_rc = create_queue_root(queue);
-            switch(create_root_rc){
-            case ZNODEEXISTS:
-            case ZOK:
-                break;
-            default:
-                return create_root_rc; 
-            }
-            break;
-        default:
-            return rc;
-        }
-    }
-}
-
-
-ZOOAPI int zkr_queue_element(zkr_queue_t *queue, char *buffer, int *buffer_len){
-    int path_length = strlen(queue->path);
-    for(;;){
-        struct String_vector stvector;
-        struct String_vector *vector = &stvector;
-        /*Get sorted children*/
-        int get_children_rc = zoo_get_children(queue->zh, queue->path, 0, vector);
-        switch(get_children_rc){
-        case ZOK:
-            break;
-        case ZNONODE:
-            *buffer_len = -1;
-            return ZOK;
-        default:
-            return get_children_rc;
-        }
-        if(stvector.count == 0){
-            *buffer_len = -1;
-            return ZOK;
-        }
-
-        sort_children(vector);
-        /*try all*/
-        int i;
-        for(i=0; i < stvector.count; i++){
-            char *child_name = stvector.data[i];
-            int child_path_length = path_length + 1 + strlen(child_name) +1; 
-            char child_path[child_path_length];
-            concat_path_nodename_n(child_path, child_path_length, queue->path, child_name);
-            int get_rc = zoo_get(queue->zh, child_path, 0, buffer, buffer_len, NULL);
-            switch(get_rc){
-            case ZOK:
-                free_String_vector(vector);
-                return ZOK;
-            case ZNONODE:
-                break;
-            default:
-                free_String_vector(vector);
-                return get_rc;
-            }
-        }
-    
-        free_String_vector(vector);
-    }
-}
-
-ZOOAPI int zkr_queue_remove(zkr_queue_t *queue, char *buffer, int *buffer_len){
-    int path_length = strlen(queue->path);
-    for(;;){
-        struct String_vector stvector;
-        struct String_vector *vector = &stvector;
-        /*Get sorted children*/
-        int get_children_rc = zoo_get_children(queue->zh, queue->path, 0, &stvector);
-        switch(get_children_rc){
-        case ZOK:
-            break;
-        case ZNONODE:
-            *buffer_len = -1;
-            return ZOK;
-            
-        default:
-            *buffer_len = -1;
-            return get_children_rc;
-        }
-        if(stvector.count == 0){
-            *buffer_len = -1;
-            return ZOK;
-        }
-
-        sort_children(vector);
-        /*try all*/
-        int i;
-        for( i=0; i < stvector.count; i++){
-            char *child_name = stvector.data[i];
-            int child_path_length = path_length + 1 + strlen(child_name) +1; 
-            char child_path[child_path_length];
-            concat_path_nodename_n(child_path, child_path_length, queue->path, child_name);
-            int get_rc = zoo_get(queue->zh, child_path, 0, buffer, buffer_len, NULL);
-            switch(get_rc){
-                int delete_rc;
-            case ZOK:
-                delete_rc = zoo_delete(queue->zh, child_path, -1);
-                switch(delete_rc){
-                case ZOK:
-                    free_String_vector(vector);
-                    return delete_rc;
-                case ZNONODE:
-                    break;
-                default:
-                    free_String_vector(vector);
-                    *buffer_len = -1;
-                    return delete_rc;
-                }
-                break;
-            case ZNONODE:
-                break;
-            default:
-                free_String_vector(vector);
-                *buffer_len = -1;
-                return get_rc;
-            }
-        }
-        free_String_vector(vector);
-    }
-}
-
-/**
- * The take_latch structure roughly emulates a Java CountdownLatch with 1 as the initial value.
- * It is meant to be used by a setter thread and a waiter thread.
- * 
- * This latch is specialized to be used with the queue, all latches created for the same queue structure will use the same mutex.
- *
- * The setter thread at some point will call take_latch_setter_trigger_latch() on the thread.
- *
- * The waiter thread creates the latch and at some point either calls take_latch_waiter_await()s or take_latch_waiter_mark_unneeded()s it.
- * The await function will return after the setter thread has triggered the latch.
- * The mark unneeded function will return immediately and avoid some unneeded initialization.
- *
- * Whichever thread is last to call their required function disposes of the latch.
- *
- * The latch may disposed if no threads will call the waiting, marking, or triggering functions using take_latch_destroy_syncrhonized().
- */
-
-struct take_latch {
-    enum take_state {take_init, take_waiting, take_triggered, take_not_needed} state;
-    pthread_cond_t latch_condition;
-    zkr_queue_t *queue;
-};
-
-
-typedef struct take_latch take_latch_t;  
-
-
-static void take_latch_init( take_latch_t *latch, zkr_queue_t *queue){
-    pthread_mutex_t *mutex = &(queue->pmutex);
-    pthread_mutex_lock(mutex);
-    latch->state = take_init;
-    latch->queue = queue;
-    pthread_mutex_unlock(mutex);
-}
-
-static take_latch_t *create_take_latch(zkr_queue_t *queue){
-    take_latch_t *new_take_latch = (take_latch_t *) malloc(sizeof(take_latch_t));
-    take_latch_init(new_take_latch, queue);
-    return new_take_latch;
-}
-
-
-//Only call this when you own the mutex
-static void take_latch_destroy_unsafe(take_latch_t *latch){
-    if(latch->state == take_waiting){
-        pthread_cond_destroy(&(latch->latch_condition));
-    }
-    free(latch);
-}
-
-static void take_latch_destroy_synchronized(take_latch_t *latch){
-    pthread_mutex_t *mutex = &(latch->queue->pmutex);
-    pthread_mutex_lock(mutex);
-    take_latch_destroy_unsafe(latch);
-    pthread_mutex_unlock(mutex);
-}
-
-static void take_latch_setter_trigger_latch(take_latch_t *latch){
-    pthread_mutex_t *mutex = &(latch->queue->pmutex);
-    pthread_mutex_lock(mutex);
-    switch(latch->state){
-    case take_init:
-        latch->state = take_triggered;
-        break;
-    case take_not_needed:
-        take_latch_destroy_unsafe(latch);
-        break;
-    case take_triggered:
-        LOG_DEBUG(("Error! Latch was triggered twice."));
-        break;
-    case take_waiting:
-        pthread_cond_signal(&(latch->latch_condition));
-        break;
-    }
-    pthread_mutex_unlock(mutex);
-}
-
-static void take_latch_waiter_await(take_latch_t *latch){
-    pthread_mutex_t *mutex = &(latch->queue->pmutex);
-    pthread_mutex_lock(mutex);
-    switch(latch->state){
-    case take_init:
-        pthread_cond_init(&(latch->latch_condition),NULL);
-        latch->state = take_waiting;
-        pthread_cond_wait(&(latch->latch_condition),mutex);
-        take_latch_destroy_unsafe(latch);
-        break;
-    case take_waiting:
-        LOG_DEBUG(("Error! Called await twice."));
-        break;
-    case take_not_needed:
-        LOG_DEBUG(("Error! Waiting after marking not needed."));
-        break;
-    case take_triggered:
-        take_latch_destroy_unsafe(latch);
-        break;
-    }
-    pthread_mutex_unlock(mutex);
-}
-
-static void take_latch_waiter_mark_unneeded(take_latch_t *latch){
-    pthread_mutex_t *mutex = &(latch->queue->pmutex);
-    pthread_mutex_lock(mutex);
-    switch(latch->state){
-    case take_init:
-        latch->state = take_not_needed;
-        break;
-    case take_waiting:
-        LOG_DEBUG(("Error! Can't mark unneeded after waiting."));
-        break;
-    case take_not_needed:
-        LOG_DEBUG(("Marked unneeded twice."));
-        break;
-    case take_triggered:
-        take_latch_destroy_unsafe(latch);
-        break;
-    }
-    pthread_mutex_unlock(mutex);
-}
-
-static void take_watcher(zhandle_t *zh, int type, int state, const char *path, void *watcherCtx){
-    take_latch_t *latch = (take_latch_t *) watcherCtx;
-    take_latch_setter_trigger_latch(latch);
-}
-
-
-
-ZOOAPI int zkr_queue_take(zkr_queue_t *queue, char *buffer, int *buffer_len){
-    int path_length = strlen(queue->path);
-take_attempt:    
-    for(;;){
-        struct String_vector stvector;
-        struct String_vector *vector = &stvector;
-        /*Get sorted children*/
-        take_latch_t *take_latch = create_take_latch(queue);
-        int get_children_rc = zoo_wget_children(queue->zh, queue->path, take_watcher, take_latch, &stvector);
-        switch(get_children_rc){
-        case ZOK:
-            break;
-            int create_queue_rc;
-        case ZNONODE:
-            take_latch_destroy_synchronized(take_latch);
-            create_queue_rc = create_queue_root(queue);
-            switch(create_queue_rc){
-            case ZNODEEXISTS:
-            case ZOK:
-                goto take_attempt;
-            default:
-                *buffer_len = -1;
-                return create_queue_rc;
-            }
-        default:
-            take_latch_destroy_synchronized(take_latch);
-            *buffer_len = -1;
-            return get_children_rc;
-        }
-        if(stvector.count == 0){
-            take_latch_waiter_await(take_latch);
-        }else{
-            take_latch_waiter_mark_unneeded(take_latch);
-        }
-
-        sort_children(vector);
-        /*try all*/
-        int i;
-        for( i=0; i < stvector.count; i++){
-            char *child_name = stvector.data[i];
-            int child_path_length = path_length + 1 + strlen(child_name) +1; 
-            char child_path[child_path_length];
-            concat_path_nodename_n(child_path, child_path_length, queue->path, child_name);
-            int get_rc = zoo_get(queue->zh, child_path, 0, buffer, buffer_len, NULL);
-            switch(get_rc){
-                int delete_rc;
-            case ZOK:
-                delete_rc = zoo_delete(queue->zh, child_path, -1);
-                switch(delete_rc){
-                case ZOK:
-                    free_String_vector(vector);
-                    return delete_rc;
-                case ZNONODE:
-                    break;
-                default:
-                    free_String_vector(vector);
-                    *buffer_len = -1;
-                    return delete_rc;
-                }
-                break;
-            case ZNONODE:
-                break;
-            default:
-                free_String_vector(vector);
-                *buffer_len = -1;
-                return get_rc;
-            }
-        }
-        free_String_vector(vector);
-    }
-}
-
-ZOOAPI void zkr_queue_destroy(zkr_queue_t *queue){
-    pthread_mutex_destroy(&(queue->pmutex));
-    if(queue->cached_create_path != NULL){
-        free(queue->cached_create_path);
-    }
-}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/queue/src/c/tests/TestClient.cc
----------------------------------------------------------------------
diff --git a/src/recipes/queue/src/c/tests/TestClient.cc b/src/recipes/queue/src/c/tests/TestClient.cc
deleted file mode 100644
index 5446d9b..0000000
--- a/src/recipes/queue/src/c/tests/TestClient.cc
+++ /dev/null
@@ -1,452 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <cppunit/extensions/HelperMacros.h>
-
-#include <pthread.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <sys/select.h>
-#include <cppunit/TestAssert.h>
-
-
-using namespace std;
-
-#include <cstring>
-#include <list>
-
-#include <zookeeper.h>
-#include <zoo_queue.h>
-
-static void yield(zhandle_t *zh, int i)
-{
-    sleep(i);
-}
-
-typedef struct evt {
-    string path;
-    int type;
-} evt_t;
-
-typedef struct watchCtx {
-private:
-    list<evt_t> events;
-public:
-    bool connected;
-    zhandle_t *zh;
-    
-    watchCtx() {
-        connected = false;
-        zh = 0;
-    }
-    ~watchCtx() {
-        if (zh) {
-            zookeeper_close(zh);
-            zh = 0;
-        }
-    }
-
-    evt_t getEvent() {
-        evt_t evt;
-        evt = events.front();
-        events.pop_front();
-        return evt;
-    }
-
-    int countEvents() {
-        int count;
-        count = events.size();
-        return count;
-    }
-
-    void putEvent(evt_t evt) {
-        events.push_back(evt);
-    }
-
-    bool waitForConnected(zhandle_t *zh) {
-        time_t expires = time(0) + 10;
-        while(!connected && time(0) < expires) {
-            yield(zh, 1);
-        }
-        return connected;
-    }
-    bool waitForDisconnected(zhandle_t *zh) {
-        time_t expires = time(0) + 15;
-        while(connected && time(0) < expires) {
-            yield(zh, 1);
-        }
-        return !connected;
-    }
-} watchctx_t; 
-
-extern "C" {
-    
-    const char *thread_test_string="Hello World!";
-   
-    void *offer_thread_shared_queue(void *queue_handle){
-        zkr_queue_t *queue = (zkr_queue_t *) queue_handle;
-
-        int test_string_buffer_length = strlen(thread_test_string) + 1;
-        int offer_rc = zkr_queue_offer(queue, thread_test_string, test_string_buffer_length);
-        pthread_exit(NULL);
-    }
-    
-    void *take_thread_shared_queue(void *queue_handle){
-        zkr_queue_t *queue = (zkr_queue_t *) queue_handle;
-
-        int test_string_buffer_length = strlen(thread_test_string) + 1;
-        int receive_buffer_capacity = test_string_buffer_length;
-        int receive_buffer_length = receive_buffer_capacity;
-        char *receive_buffer = (char *) malloc(sizeof(char) * receive_buffer_capacity);
-
-        int remove_rc = zkr_queue_take(queue, receive_buffer, &receive_buffer_length);
-        switch(remove_rc){
-        case ZOK:
-            pthread_exit(receive_buffer);
-        default:
-            free(receive_buffer);
-            pthread_exit(NULL);
-        }
-    }
-    
-    int valid_test_string(void *result){
-        char *result_string = (char *) result;
-        return !strncmp(result_string, thread_test_string, strlen(thread_test_string));
-    }
-}
-
-class Zookeeper_queuetest : public CPPUNIT_NS::TestFixture
-{
-    CPPUNIT_TEST_SUITE(Zookeeper_queuetest);
-    CPPUNIT_TEST(testInitDestroy);
-    CPPUNIT_TEST(testOffer1);
-    CPPUNIT_TEST(testOfferRemove1);
-    CPPUNIT_TEST(testOfferRemove2);
-    CPPUNIT_TEST(testOfferRemove3);
-    CPPUNIT_TEST(testOfferRemove4);
-    CPPUNIT_TEST(testOfferRemove5);
-    CPPUNIT_TEST(testOfferRemove6);
-    CPPUNIT_TEST(testOfferTake1);
-    CPPUNIT_TEST(testOfferTake2);
-    CPPUNIT_TEST(testOfferTake3);
-    CPPUNIT_TEST(testOfferTake4);
-    CPPUNIT_TEST(testOfferTake5);
-    CPPUNIT_TEST(testOfferTake6);
-    CPPUNIT_TEST_SUITE_END();
-
-    static void watcher(zhandle_t *, int type, int state, const char *path,void*v){
-        watchctx_t *ctx = (watchctx_t*)v;
-
-        if (state == ZOO_CONNECTED_STATE) {
-            ctx->connected = true;
-        } else {
-            ctx->connected = false;
-        }
-        if (type != ZOO_SESSION_EVENT) {
-            evt_t evt;
-            evt.path = path;
-            evt.type = type;
-            ctx->putEvent(evt);
-        }
-    }
-
-    static const char hostPorts[];
-
-    const char *getHostPorts() {
-        return hostPorts;
-    }
-
-    zhandle_t *createClient(watchctx_t *ctx) {
-        zhandle_t *zk = zookeeper_init(hostPorts, watcher, 10000, 0,
-                                       ctx, 0);
-        ctx->zh = zk;
-        sleep(1);
-        return zk;
-    }
-    
-public:
-
-#define ZKSERVER_CMD "./tests/zkServer.sh"
-
-    void setUp()
-        {
-            char cmd[1024];
-            sprintf(cmd, "%s startClean %s", ZKSERVER_CMD, getHostPorts());
-            CPPUNIT_ASSERT(system(cmd) == 0);
-        }
-    
-
-    void startServer() {
-        char cmd[1024];
-        sprintf(cmd, "%s start %s", ZKSERVER_CMD, getHostPorts());
-        CPPUNIT_ASSERT(system(cmd) == 0);
-    }
-
-    void stopServer() {
-        tearDown();
-    }
-
-    void tearDown()
-        {
-            char cmd[1024];
-            sprintf(cmd, "%s stop %s", ZKSERVER_CMD, getHostPorts());
-            CPPUNIT_ASSERT(system(cmd) == 0);
-        }
-
-    void initializeQueuesAndHandles(int num_clients, zhandle_t *zoohandles[], 
-                                    watchctx_t ctxs[], zkr_queue_t queues[], char *path){
-        int i;
-        for(i=0; i< num_clients; i++){
-            zoohandles[i] = createClient(&ctxs[i]);
-            zkr_queue_init(&queues[i], zoohandles[i], path, &ZOO_OPEN_ACL_UNSAFE);
-        }
-    }
-
-    void cleanUpQueues(int num_clients, zkr_queue_t queues[]){
-        int i;
-        for(i=0; i < num_clients; i++){
-            zkr_queue_destroy(&queues[i]);
-        }
-    }
-
-    void testInitDestroy(){
-        int num_clients = 1;
-        watchctx_t ctxs[num_clients];
-        zhandle_t *zoohandles[num_clients];
-        zkr_queue_t queues[num_clients];
-        char *path= (char *)"/testInitDestroy";
-
-        int i;
-        for(i=0; i< num_clients; i++){
-            zoohandles[i] = createClient(&ctxs[i]);
-            zkr_queue_init(&queues[i], zoohandles[i], path, &ZOO_OPEN_ACL_UNSAFE);
-        }
-    
-        for(i=0; i< num_clients; i++){
-            zkr_queue_destroy(&queues[i]);
-        }
-    
-    }
-
-    void testOffer1(){
-        int num_clients = 1;
-        watchctx_t ctxs[num_clients];
-        zhandle_t *zoohandles[num_clients];
-        zkr_queue_t queues[num_clients];
-        char *path= (char *)"/testOffer1";
-
-        initializeQueuesAndHandles(num_clients, zoohandles, ctxs, queues, path);
-
-        const char *test_string="Hello World!";
-        int test_string_length = strlen(test_string);
-        int test_string_buffer_length = test_string_length + 1;
-        char buffer[test_string_buffer_length];
-
-        int offer_rc = zkr_queue_offer(&queues[0], test_string, test_string_buffer_length);
-        CPPUNIT_ASSERT(offer_rc == ZOK);
-
-        int removed_element_buffer_length = test_string_buffer_length;
-        int remove_rc = zkr_queue_remove(&queues[0], buffer, &removed_element_buffer_length);
-        CPPUNIT_ASSERT(remove_rc == ZOK);
-        CPPUNIT_ASSERT(removed_element_buffer_length == test_string_buffer_length);
-        CPPUNIT_ASSERT(strncmp(test_string,buffer,test_string_length)==0);
-
-        cleanUpQueues(num_clients,queues);
-    }
-
-    void create_n_remove_m(char *path, int n, int m){
-        int num_clients = 2;
-        watchctx_t ctxs[num_clients];
-        zhandle_t *zoohandles[num_clients];
-        zkr_queue_t queues[num_clients];
-    
-        initializeQueuesAndHandles(num_clients, zoohandles, ctxs, queues, path);
-
-        int i;
-        int max_digits = sizeof(int)*3;
-        const char *test_string = "Hello World!";
-        int buffer_length = strlen(test_string) + max_digits + 1;
-        char correct_buffer[buffer_length];
-        char receive_buffer[buffer_length];
-
-        for(i = 0; i < n; i++){
-            snprintf(correct_buffer, buffer_length, "%s%d", test_string,i);
-            int offer_rc = zkr_queue_offer(&queues[0], correct_buffer, buffer_length);
-            CPPUNIT_ASSERT(offer_rc == ZOK);
-        }
-        printf("Offers\n");
-        for(i=0; i<m ;i++){
-            snprintf(correct_buffer, buffer_length, "%s%d", test_string,i);
-            int receive_buffer_length=buffer_length;
-            int remove_rc = zkr_queue_remove(&queues[1], receive_buffer, &receive_buffer_length);
-            CPPUNIT_ASSERT(remove_rc == ZOK);
-            if(i >=n){
-                CPPUNIT_ASSERT(receive_buffer_length == -1);
-            }else{
-                CPPUNIT_ASSERT(strncmp(correct_buffer,receive_buffer, buffer_length)==0);
-            }
-        }
-
-        cleanUpQueues(num_clients,queues);
-    }
-
-    void testOfferRemove1(){
-        create_n_remove_m((char *)"/testOfferRemove1", 0,1);
-    }
-
-    void testOfferRemove2(){
-        create_n_remove_m((char *)"/testOfferRemove2", 1,1);
-    }
-
-    void testOfferRemove3(){
-        create_n_remove_m((char *)"/testOfferRemove3", 10,1);
-    }
-    
-    void testOfferRemove4(){
-        create_n_remove_m((char *)"/testOfferRemove4", 10,10);
-    }
-
-    void testOfferRemove5(){
-        create_n_remove_m((char *)"/testOfferRemove5", 10,5);
-    }
-
-    void testOfferRemove6(){
-        create_n_remove_m((char *)"/testOfferRemove6", 10,11);
-    }
-
-    void create_n_take_m(char *path, int n, int m){
-        CPPUNIT_ASSERT(m<=n);
-        int num_clients = 2;
-        watchctx_t ctxs[num_clients];
-        zhandle_t *zoohandles[num_clients];
-        zkr_queue_t queues[num_clients];
-    
-        initializeQueuesAndHandles(num_clients, zoohandles, ctxs, queues, path);
-
-        int i;
-        int max_digits = sizeof(int)*3;
-        const char *test_string = "Hello World!";
-        int buffer_length = strlen(test_string) + max_digits + 1;
-        char correct_buffer[buffer_length];
-        char receive_buffer[buffer_length];
-
-        for(i = 0; i < n; i++){
-            snprintf(correct_buffer, buffer_length, "%s%d", test_string,i);
-            int offer_rc = zkr_queue_offer(&queues[0], correct_buffer, buffer_length);
-            CPPUNIT_ASSERT(offer_rc == ZOK);
-        }
-        printf("Offers\n");
-        for(i=0; i<m ;i++){
-            snprintf(correct_buffer, buffer_length, "%s%d", test_string,i);
-            int receive_buffer_length=buffer_length;
-            int remove_rc = zkr_queue_take(&queues[1], receive_buffer, &receive_buffer_length);
-            CPPUNIT_ASSERT(remove_rc == ZOK);
-            if(i >=n){
-                CPPUNIT_ASSERT(receive_buffer_length == -1);
-            }else{
-                CPPUNIT_ASSERT(strncmp(correct_buffer,receive_buffer, buffer_length)==0);
-            }
-        }
-
-        cleanUpQueues(num_clients,queues);
-    }
-
-    void testOfferTake1(){
-        create_n_take_m((char *)"/testOfferTake1", 2,1);
-    }
-
-    void testOfferTake2(){
-        create_n_take_m((char *)"/testOfferTake2", 1,1);
-    }
-
-    void testOfferTake3(){
-        create_n_take_m((char *)"/testOfferTake3", 10,1);
-    }
-    
-    void testOfferTake4(){
-        create_n_take_m((char *)"/testOfferTake4", 10,10);
-    }
-
-    void testOfferTake5(){
-        create_n_take_m((char *)"/testOfferTake5", 10,5);
-    }
-
-    void testOfferTake6(){
-        create_n_take_m((char *)"/testOfferTake6", 12,11);
-    }
-
-    void testTakeThreaded(){
-        int num_clients = 1;
-        watchctx_t ctxs[num_clients];
-        zhandle_t *zoohandles[num_clients];
-        zkr_queue_t queues[num_clients];
-        char *path=(char *)"/testTakeThreaded";
-    
-        initializeQueuesAndHandles(num_clients, zoohandles, ctxs, queues, path);
-        pthread_t take_thread;
-
-        pthread_create(&take_thread, NULL, take_thread_shared_queue, (void *) &queues[0]);
-
-        usleep(1000);
-
-        pthread_t offer_thread;
-        pthread_create(&offer_thread, NULL, offer_thread_shared_queue, (void *) &queues[0]);
-        pthread_join(offer_thread, NULL);
-
-        void *take_thread_result;
-        pthread_join(take_thread, &take_thread_result);
-        CPPUNIT_ASSERT(take_thread_result != NULL);
-        CPPUNIT_ASSERT(valid_test_string(take_thread_result));
-
-        cleanUpQueues(num_clients,queues);
-    }
-
-    void testTakeThreaded2(){
-        int num_clients = 1;
-        watchctx_t ctxs[num_clients];
-        zhandle_t *zoohandles[num_clients];
-        zkr_queue_t queues[num_clients];
-        char *path=(char *)"/testTakeThreaded2";
-    
-        initializeQueuesAndHandles(num_clients, zoohandles, ctxs, queues, path);
-
-        int take_attempts;
-        int num_take_attempts = 2;
-        for(take_attempts=0; take_attempts < num_take_attempts; take_attempts++){ 
-            pthread_t take_thread;
-    
-            pthread_create(&take_thread, NULL, take_thread_shared_queue, (void *) &queues[0]);
-    
-            usleep(1000);
-    
-            pthread_t offer_thread;
-            pthread_create(&offer_thread, NULL, offer_thread_shared_queue, (void *) &queues[0]);
-            pthread_join(offer_thread, NULL);
-    
-            void *take_thread_result;
-            pthread_join(take_thread, &take_thread_result);
-            CPPUNIT_ASSERT(take_thread_result != NULL);
-            CPPUNIT_ASSERT(valid_test_string(take_thread_result));
-
-        }
-        cleanUpQueues(num_clients,queues);
-    }
-};
-
-const char Zookeeper_queuetest::hostPorts[] = "127.0.0.1:22181";
-CPPUNIT_TEST_SUITE_REGISTRATION(Zookeeper_queuetest);

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/queue/src/c/tests/TestDriver.cc
----------------------------------------------------------------------
diff --git a/src/recipes/queue/src/c/tests/TestDriver.cc b/src/recipes/queue/src/c/tests/TestDriver.cc
deleted file mode 100644
index 2b818f4..0000000
--- a/src/recipes/queue/src/c/tests/TestDriver.cc
+++ /dev/null
@@ -1,114 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <string>
-#include <cppunit/TestRunner.h>
-#include <cppunit/CompilerOutputter.h>
-#include <cppunit/TestResult.h>
-#include <cppunit/TestResultCollector.h>
-#include <cppunit/TextTestProgressListener.h>
-#include <cppunit/BriefTestProgressListener.h>
-#include <cppunit/extensions/TestFactoryRegistry.h>
-#include <stdexcept>
-#include <cppunit/Exception.h>
-#include <cppunit/TestFailure.h>
-#include <cppunit/XmlOutputter.h>
-#include <fstream>
-
-#include "Util.h"
-
-using namespace std;
-
-CPPUNIT_NS_BEGIN
-
-class EclipseOutputter: public CompilerOutputter
-{
-public:
-  EclipseOutputter(TestResultCollector *result,ostream &stream):
-        CompilerOutputter(result,stream,"%p:%l: "),stream_(stream)
-    {
-    }
-    virtual void printFailedTestName( TestFailure *failure ){}
-    virtual void printFailureMessage( TestFailure *failure )
-    {
-      stream_<<": ";
-      Message msg = failure->thrownException()->message();
-      stream_<< msg.shortDescription();
-
-      string text;
-      for(int i=0; i<msg.detailCount();i++){
-          text+=msg.detailAt(i);
-          if(i+1!=msg.detailCount())
-              text+=", ";
-      }
-      if(text.length()!=0)
-          stream_ <<" ["<<text<<"]";
-      stream_<<"\n";
-    }
-    ostream& stream_;
-};
-
-CPPUNIT_NS_END
-
-int main( int argc, char* argv[] ) { 
-   // if command line contains "-ide" then this is the post build check
-   // => the output must be in the compiler error format.
-   //bool selfTest = (argc > 1) && (std::string("-ide") == argv[1]);
-   globalTestConfig.addConfigFromCmdLine(argc,argv);
-
-   // Create the event manager and test controller
-   CPPUNIT_NS::TestResult controller;
-   // Add a listener that colllects test result
-   CPPUNIT_NS::TestResultCollector result;
-   controller.addListener( &result );
-   
-   // Add a listener that print dots as tests run.
-   // CPPUNIT_NS::TextTestProgressListener progress;
-   CPPUNIT_NS::BriefTestProgressListener progress;
-   controller.addListener( &progress );
- 
-   CPPUNIT_NS::TestRunner runner;
-   runner.addTest( CPPUNIT_NS::TestFactoryRegistry::getRegistry().makeTest() );
- 
-   try
-   {
-     cout << "Running "  <<  globalTestConfig.getTestName();
-     runner.run( controller, globalTestConfig.getTestName());
-     cout<<endl;
-
-     // Print test in a compiler compatible format.
-     CPPUNIT_NS::EclipseOutputter outputter( &result,cout);
-     outputter.write(); 
-
- // Uncomment this for XML output
-#ifdef ENABLE_XML_OUTPUT
-     std::ofstream file( "tests.xml" );
-     CPPUNIT_NS::XmlOutputter xml( &result, file );
-     xml.setStyleSheet( "report.xsl" );
-     xml.write();
-     file.close();
-#endif
-   }
-   catch ( std::invalid_argument &e )  // Test path not resolved
-   {
-     cout<<"\nERROR: "<<e.what()<<endl;
-     return 0;
-   }
-
-   return result.wasSuccessful() ? 0 : 1;
- }

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/queue/src/c/tests/Util.cc
----------------------------------------------------------------------
diff --git a/src/recipes/queue/src/c/tests/Util.cc b/src/recipes/queue/src/c/tests/Util.cc
deleted file mode 100644
index 26a9a09..0000000
--- a/src/recipes/queue/src/c/tests/Util.cc
+++ /dev/null
@@ -1,30 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "Util.h"
-
-const std::string EMPTY_STRING;
-
-TestConfig globalTestConfig;
-
-void millisleep(int ms){
-    timespec ts;
-    ts.tv_sec=ms/1000;
-    ts.tv_nsec=(ms%1000)*1000000; // to nanoseconds
-    nanosleep(&ts,0);
-}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/queue/src/c/tests/Util.h
----------------------------------------------------------------------
diff --git a/src/recipes/queue/src/c/tests/Util.h b/src/recipes/queue/src/c/tests/Util.h
deleted file mode 100644
index 95f5420..0000000
--- a/src/recipes/queue/src/c/tests/Util.h
+++ /dev/null
@@ -1,134 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef UTIL_H_
-#define UTIL_H_
-
-#include <map>
-#include <vector>
-#include <string>
-
-// number of elements in array
-#define COUNTOF(array) sizeof(array)/sizeof(array[0])
-
-#define DECLARE_WRAPPER(ret,sym,sig) \
-    extern "C" ret __real_##sym sig; \
-    extern "C" ret __wrap_##sym sig
-
-#define CALL_REAL(sym,params) \
-    __real_##sym params
-
-// must include "src/zookeeper_log.h" to be able to use this macro
-#define TEST_TRACE(x) \
-    log_message(3,__LINE__,__func__,format_log_message x)
-
-extern const std::string EMPTY_STRING;
-
-// *****************************************************************************
-// A bit of wizardry to get to the bare type from a reference or a pointer 
-// to the type
-template <class T>
-struct TypeOp {
-    typedef T BareT;
-    typedef T ArgT;
-};
-
-// partial specialization for reference types
-template <class T>
-struct TypeOp<T&>{
-    typedef T& ArgT;
-    typedef typename TypeOp<T>::BareT BareT;
-};
-
-// partial specialization for pointers
-template <class T>
-struct TypeOp<T*>{
-    typedef T* ArgT;
-    typedef typename TypeOp<T>::BareT BareT;
-};
-
-// *****************************************************************************
-// Container utilities
-
-template <class K, class V>
-void putValue(std::map<K,V>& map,const K& k, const V& v){
-    typedef std::map<K,V> Map;
-    typename Map::const_iterator it=map.find(k);
-    if(it==map.end())
-        map.insert(typename Map::value_type(k,v));
-    else
-        map[k]=v;
-}
-
-template <class K, class V>
-bool getValue(const std::map<K,V>& map,const K& k,V& v){
-    typedef std::map<K,V> Map;
-    typename Map::const_iterator it=map.find(k);
-    if(it==map.end())
-        return false;
-    v=it->second;
-    return true;
-}
-
-// *****************************************************************************
-// misc utils
-
-// millisecond sleep
-void millisleep(int ms);
-// evaluate given predicate until it returns true or the timeout 
-// (in millis) has expired
-template<class Predicate>
-int ensureCondition(const Predicate& p,int timeout){
-    int elapsed=0;
-    while(!p() && elapsed<timeout){
-        millisleep(2);
-        elapsed+=2;
-    }
-    return elapsed;
-};
-
-// *****************************************************************************
-// test global configuration data 
-class TestConfig{
-    typedef std::vector<std::string> CmdLineOptList;
-public:
-    typedef CmdLineOptList::const_iterator const_iterator;
-    TestConfig(){}
-    ~TestConfig(){}
-    void addConfigFromCmdLine(int argc, char* argv[]){
-        if(argc>=2)
-            testName_=argv[1];
-        for(int i=2; i<argc;++i)
-            cmdOpts_.push_back(argv[i]);
-    }
-    const_iterator getExtraOptBegin() const {return cmdOpts_.begin();}
-    const_iterator getExtraOptEnd() const {return cmdOpts_.end();}
-    size_t getExtraOptCount() const {
-        return cmdOpts_.size();
-    }
-    const std::string& getTestName() const {
-        return testName_=="all"?EMPTY_STRING:testName_;
-    }
-private:
-    CmdLineOptList cmdOpts_;
-    std::string testName_;
-};
-
-extern TestConfig globalTestConfig;
-
-#endif /*UTIL_H_*/

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/queue/src/c/tests/zkServer.sh
----------------------------------------------------------------------
diff --git a/src/recipes/queue/src/c/tests/zkServer.sh b/src/recipes/queue/src/c/tests/zkServer.sh
deleted file mode 100755
index a22fd30..0000000
--- a/src/recipes/queue/src/c/tests/zkServer.sh
+++ /dev/null
@@ -1,75 +0,0 @@
-#!/bin/bash
-#
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-
-if [ "x$1" == "x" ]
-then
-	echo "USAGE: $0 startClean|start|stop hostPorts"
-	exit 2
-fi
-
-if [ "x$1" == "xstartClean" ]
-then
-	rm -rf /tmp/zkdata
-fi
-
-# Make sure nothing is left over from before
-if [ -r "/tmp/zk.pid" ]
-then
-pid=`cat /tmp/zk.pid`
-kill -9 $pid
-rm -f /tmp/zk.pid
-fi
-
-base_dir="../../../../.."
-
-CLASSPATH="$CLASSPATH:${base_dir}/build/classes"
-CLASSPATH="$CLASSPATH:${base_dir}/conf"
-
-for f in "${base_dir}"/zookeeper-*.jar
-do
-    CLASSPATH="$CLASSPATH:$f"
-done
-
-for i in "${base_dir}"/build/lib/*.jar
-do
-    CLASSPATH="$CLASSPATH:$i"
-done
-
-for i in "${base_dir}"/src/java/lib/*.jar
-do
-    CLASSPATH="$CLASSPATH:$i"
-done
-
-CLASSPATH="$CLASSPATH:${CLOVER_HOME}/lib/clover.jar"
-
-case $1 in
-start|startClean)
-	mkdir -p /tmp/zkdata
-	java -cp $CLASSPATH org.apache.zookeeper.server.ZooKeeperServerMain 22181 /tmp/zkdata &> /tmp/zk.log &
-        echo $! > /tmp/zk.pid
-        sleep 5
-	;;
-stop)
-	# Already killed above
-	;;
-*)
-	echo "Unknown command " + $1
-	exit 2
-esac
-

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/queue/src/java/org/apache/zookeeper/recipes/queue/DistributedQueue.java
----------------------------------------------------------------------
diff --git a/src/recipes/queue/src/java/org/apache/zookeeper/recipes/queue/DistributedQueue.java b/src/recipes/queue/src/java/org/apache/zookeeper/recipes/queue/DistributedQueue.java
deleted file mode 100644
index c5d7c83..0000000
--- a/src/recipes/queue/src/java/org/apache/zookeeper/recipes/queue/DistributedQueue.java
+++ /dev/null
@@ -1,313 +0,0 @@
-/**
- *
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.zookeeper.recipes.queue;
-
-import java.util.List;
-import java.util.NoSuchElementException;
-import java.util.TreeMap;
-import java.util.concurrent.CountDownLatch;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.apache.zookeeper.CreateMode;
-import org.apache.zookeeper.KeeperException;
-import org.apache.zookeeper.WatchedEvent;
-import org.apache.zookeeper.Watcher;
-import org.apache.zookeeper.ZooDefs;
-import org.apache.zookeeper.ZooKeeper;
-import org.apache.zookeeper.data.ACL;
-import org.apache.zookeeper.data.Stat;
-
-/**
- * 
- * A <a href="package.html">protocol to implement a distributed queue</a>.
- * 
- */
-
-public class DistributedQueue {
-    private static final Logger LOG = LoggerFactory.getLogger(DistributedQueue.class);
-
-    private final String dir;
-
-    private ZooKeeper zookeeper;
-    private List<ACL> acl = ZooDefs.Ids.OPEN_ACL_UNSAFE;
-
-    private final String prefix = "qn-";
-
-
-    public DistributedQueue(ZooKeeper zookeeper, String dir, List<ACL> acl){
-        this.dir = dir;
-
-        if(acl != null){
-            this.acl = acl;
-        }
-        this.zookeeper = zookeeper;
-
-    }
-
-
-
-    /**
-     * Returns a Map of the children, ordered by id.
-     * @param watcher optional watcher on getChildren() operation.
-     * @return map from id to child name for all children
-     */
-    private TreeMap<Long,String> orderedChildren(Watcher watcher) throws KeeperException, InterruptedException {
-        TreeMap<Long,String> orderedChildren = new TreeMap<Long,String>();
-
-        List<String> childNames = null;
-        try{
-            childNames = zookeeper.getChildren(dir, watcher);
-        }catch (KeeperException.NoNodeException e){
-            throw e;
-        }
-
-        for(String childName : childNames){
-            try{
-                //Check format
-                if(!childName.regionMatches(0, prefix, 0, prefix.length())){
-                    LOG.warn("Found child node with improper name: " + childName);
-                    continue;
-                }
-                String suffix = childName.substring(prefix.length());
-                Long childId = new Long(suffix);
-                orderedChildren.put(childId,childName);
-            }catch(NumberFormatException e){
-                LOG.warn("Found child node with improper format : " + childName + " " + e,e);
-            }
-        }
-
-        return orderedChildren;
-    }
-
-    /**
-     * Find the smallest child node.
-     * @return The name of the smallest child node.
-     */
-    private String smallestChildName() throws KeeperException, InterruptedException {
-        long minId = Long.MAX_VALUE;
-        String minName = "";
-
-        List<String> childNames = null;
-
-        try{
-            childNames = zookeeper.getChildren(dir, false);
-        }catch(KeeperException.NoNodeException e){
-            LOG.warn("Caught: " +e,e);
-            return null;
-        }
-
-        for(String childName : childNames){
-            try{
-                //Check format
-                if(!childName.regionMatches(0, prefix, 0, prefix.length())){
-                    LOG.warn("Found child node with improper name: " + childName);
-                    continue;
-                }
-                String suffix = childName.substring(prefix.length());
-                long childId = Long.parseLong(suffix);
-                if(childId < minId){
-                    minId = childId;
-                    minName = childName;
-                }
-            }catch(NumberFormatException e){
-                LOG.warn("Found child node with improper format : " + childName + " " + e,e);
-            }
-        }
-
-
-        if(minId < Long.MAX_VALUE){
-            return minName;
-        }else{
-            return null;
-        }
-    }
-
-    /**
-     * Return the head of the queue without modifying the queue.
-     * @return the data at the head of the queue.
-     * @throws NoSuchElementException
-     * @throws KeeperException
-     * @throws InterruptedException
-     */
-    public byte[] element() throws NoSuchElementException, KeeperException, InterruptedException {
-        TreeMap<Long,String> orderedChildren;
-
-        // element, take, and remove follow the same pattern.
-        // We want to return the child node with the smallest sequence number.
-        // Since other clients are remove()ing and take()ing nodes concurrently, 
-        // the child with the smallest sequence number in orderedChildren might be gone by the time we check.
-        // We don't call getChildren again until we have tried the rest of the nodes in sequence order.
-        while(true){
-            try{
-                orderedChildren = orderedChildren(null);
-            }catch(KeeperException.NoNodeException e){
-                throw new NoSuchElementException();
-            }
-            if(orderedChildren.size() == 0 ) throw new NoSuchElementException();
-
-            for(String headNode : orderedChildren.values()){
-                if(headNode != null){
-                    try{
-                        return zookeeper.getData(dir+"/"+headNode, false, null);
-                    }catch(KeeperException.NoNodeException e){
-                        //Another client removed the node first, try next
-                    }
-                }
-            }
-
-        }
-    }
-
-
-    /**
-     * Attempts to remove the head of the queue and return it.
-     * @return The former head of the queue
-     * @throws NoSuchElementException
-     * @throws KeeperException
-     * @throws InterruptedException
-     */
-    public byte[] remove() throws NoSuchElementException, KeeperException, InterruptedException {
-        TreeMap<Long,String> orderedChildren;
-        // Same as for element.  Should refactor this.
-        while(true){
-            try{
-                orderedChildren = orderedChildren(null);
-            }catch(KeeperException.NoNodeException e){
-                throw new NoSuchElementException();
-            }
-            if(orderedChildren.size() == 0) throw new NoSuchElementException();
-
-            for(String headNode : orderedChildren.values()){
-                String path = dir +"/"+headNode;
-                try{
-                    byte[] data = zookeeper.getData(path, false, null);
-                    zookeeper.delete(path, -1);
-                    return data;
-                }catch(KeeperException.NoNodeException e){
-                    // Another client deleted the node first.
-                }
-            }
-
-        }
-    }
-
-    private class LatchChildWatcher implements Watcher {
-
-        CountDownLatch latch;
-
-        public LatchChildWatcher(){
-            latch = new CountDownLatch(1);
-        }
-
-        public void process(WatchedEvent event){
-            LOG.debug("Watcher fired on path: " + event.getPath() + " state: " + 
-                    event.getState() + " type " + event.getType());
-            latch.countDown();
-        }
-        public void await() throws InterruptedException {
-            latch.await();
-        }
-    }
-
-    /**
-     * Removes the head of the queue and returns it, blocks until it succeeds.
-     * @return The former head of the queue
-     * @throws NoSuchElementException
-     * @throws KeeperException
-     * @throws InterruptedException
-     */
-    public byte[] take() throws KeeperException, InterruptedException {
-        TreeMap<Long,String> orderedChildren;
-        // Same as for element.  Should refactor this.
-        while(true){
-            LatchChildWatcher childWatcher = new LatchChildWatcher();
-            try{
-                orderedChildren = orderedChildren(childWatcher);
-            }catch(KeeperException.NoNodeException e){
-                zookeeper.create(dir, new byte[0], acl, CreateMode.PERSISTENT);
-                continue;
-            }
-            if(orderedChildren.size() == 0){
-                childWatcher.await();
-                continue;
-            }
-
-            for(String headNode : orderedChildren.values()){
-                String path = dir +"/"+headNode;
-                try{
-                    byte[] data = zookeeper.getData(path, false, null);
-                    zookeeper.delete(path, -1);
-                    return data;
-                }catch(KeeperException.NoNodeException e){
-                    // Another client deleted the node first.
-                }
-            }
-        }
-    }
-
-    /**
-     * Inserts data into queue.
-     * @param data
-     * @return true if data was successfully added
-     */
-    public boolean offer(byte[] data) throws KeeperException, InterruptedException{
-        for(;;){
-            try{
-                zookeeper.create(dir+"/"+prefix, data, acl, CreateMode.PERSISTENT_SEQUENTIAL);
-                return true;
-            }catch(KeeperException.NoNodeException e){
-                zookeeper.create(dir, new byte[0], acl, CreateMode.PERSISTENT);
-            }
-        }
-
-    }
-
-    /**
-     * Returns the data at the first element of the queue, or null if the queue is empty.
-     * @return data at the first element of the queue, or null.
-     * @throws KeeperException
-     * @throws InterruptedException
-     */
-    public byte[] peek() throws KeeperException, InterruptedException{
-        try{
-            return element();
-        }catch(NoSuchElementException e){
-            return null;
-        }
-    }
-
-
-    /**
-     * Attempts to remove the head of the queue and return it. Returns null if the queue is empty.
-     * @return Head of the queue or null.
-     * @throws KeeperException
-     * @throws InterruptedException
-     */
-    public byte[] poll() throws KeeperException, InterruptedException {
-        try{
-            return remove();
-        }catch(NoSuchElementException e){
-            return null;
-        }
-    }
-
-
-
-}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/queue/test/org/apache/zookeeper/recipes/queue/DistributedQueueTest.java
----------------------------------------------------------------------
diff --git a/src/recipes/queue/test/org/apache/zookeeper/recipes/queue/DistributedQueueTest.java b/src/recipes/queue/test/org/apache/zookeeper/recipes/queue/DistributedQueueTest.java
deleted file mode 100644
index c6cfae2..0000000
--- a/src/recipes/queue/test/org/apache/zookeeper/recipes/queue/DistributedQueueTest.java
+++ /dev/null
@@ -1,286 +0,0 @@
-/**
- *
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.zookeeper.recipes.queue;
-
-import java.util.NoSuchElementException;
-
-import org.apache.zookeeper.KeeperException;
-import org.apache.zookeeper.ZooKeeper;
-import org.apache.zookeeper.test.ClientBase;
-import org.junit.After;
-import org.junit.Assert;
-import org.junit.Test;
-
-
-
-public class DistributedQueueTest extends ClientBase {
-
-    @After
-    public void tearDown() throws Exception {
-        super.tearDown();
-        LOG.info("FINISHED " + getTestName());
-    }
-
-
-    @Test
-    public void testOffer1() throws Exception {
-        String dir = "/testOffer1";
-        String testString = "Hello World";
-        final int num_clients = 1;
-        ZooKeeper clients[] = new ZooKeeper[num_clients];
-        DistributedQueue queueHandles[] = new DistributedQueue[num_clients];
-        for(int i=0; i < clients.length; i++){
-            clients[i] = createClient();
-            queueHandles[i] = new DistributedQueue(clients[i], dir, null);
-        }
-
-        queueHandles[0].offer(testString.getBytes());
-
-        byte dequeuedBytes[] = queueHandles[0].remove();
-        Assert.assertEquals(new String(dequeuedBytes), testString);
-    }
-
-    @Test
-    public void testOffer2() throws Exception {
-        String dir = "/testOffer2";
-        String testString = "Hello World";
-        final int num_clients = 2;
-        ZooKeeper clients[] = new ZooKeeper[num_clients];
-        DistributedQueue queueHandles[] = new DistributedQueue[num_clients];
-        for(int i=0; i < clients.length; i++){
-            clients[i] = createClient();
-            queueHandles[i] = new DistributedQueue(clients[i], dir, null);
-        }
-
-        queueHandles[0].offer(testString.getBytes());
-
-        byte dequeuedBytes[] = queueHandles[1].remove();
-        Assert.assertEquals(new String(dequeuedBytes), testString);
-    }
-
-    @Test
-    public void testTake1() throws Exception {
-        String dir = "/testTake1";
-        String testString = "Hello World";
-        final int num_clients = 1;
-        ZooKeeper clients[] = new ZooKeeper[num_clients];
-        DistributedQueue queueHandles[] = new DistributedQueue[num_clients];
-        for(int i=0; i < clients.length; i++){
-            clients[i] = createClient();
-            queueHandles[i] = new DistributedQueue(clients[i], dir, null);
-        }
-
-        queueHandles[0].offer(testString.getBytes());
-
-        byte dequeuedBytes[] = queueHandles[0].take();
-        Assert.assertEquals(new String(dequeuedBytes), testString);
-    }
-
-
-
-    @Test
-    public void testRemove1() throws Exception{
-        String dir = "/testRemove1";
-        String testString = "Hello World";
-        final int num_clients = 1;
-        ZooKeeper clients[] = new ZooKeeper[num_clients];
-        DistributedQueue queueHandles[] = new DistributedQueue[num_clients];
-        for(int i=0; i < clients.length; i++){
-            clients[i] = createClient();
-            queueHandles[i] = new DistributedQueue(clients[i], dir, null);
-        }
-
-        try{
-            queueHandles[0].remove();
-        }catch(NoSuchElementException e){
-            return;
-        }
-        Assert.assertTrue(false);
-    }
-
-    public void createNremoveMtest(String dir,int n,int m) throws Exception{
-        String testString = "Hello World";
-        final int num_clients = 2;
-        ZooKeeper clients[] = new ZooKeeper[num_clients];
-        DistributedQueue queueHandles[] = new DistributedQueue[num_clients];
-        for(int i=0; i < clients.length; i++){
-            clients[i] = createClient();
-            queueHandles[i] = new DistributedQueue(clients[i], dir, null);
-        }
-
-        for(int i=0; i< n; i++){
-            String offerString = testString + i;
-            queueHandles[0].offer(offerString.getBytes());
-        }
-
-        byte data[] = null;
-        for(int i=0; i<m; i++){
-            data=queueHandles[1].remove();
-        }
-        Assert.assertEquals(new String(data), testString+(m-1));
-    }
-
-    @Test
-    public void testRemove2() throws Exception{
-        createNremoveMtest("/testRemove2",10,2);
-    }
-    @Test
-    public void testRemove3() throws Exception{
-        createNremoveMtest("/testRemove3",1000,1000);
-    }
-
-    public void createNremoveMelementTest(String dir,int n,int m) throws Exception{
-        String testString = "Hello World";
-        final int num_clients = 2;
-        ZooKeeper clients[] = new ZooKeeper[num_clients];
-        DistributedQueue queueHandles[] = new DistributedQueue[num_clients];
-        for(int i=0; i < clients.length; i++){
-            clients[i] = createClient();
-            queueHandles[i] = new DistributedQueue(clients[i], dir, null);
-        }
-
-        for(int i=0; i< n; i++){
-            String offerString = testString + i;
-            queueHandles[0].offer(offerString.getBytes());
-        }
-
-        byte data[] = null;
-        for(int i=0; i<m; i++){
-            data=queueHandles[1].remove();
-        }
-        Assert.assertEquals(new String(queueHandles[1].element()), testString+m);
-    }
-
-    @Test
-    public void testElement1() throws Exception {
-        createNremoveMelementTest("/testElement1",1,0);
-    }
-
-    @Test
-    public void testElement2() throws Exception {
-        createNremoveMelementTest("/testElement2",10,2);
-    }
-
-    @Test
-    public void testElement3() throws Exception {
-        createNremoveMelementTest("/testElement3",1000,500);
-    }
-
-    @Test
-    public void testElement4() throws Exception {
-        createNremoveMelementTest("/testElement4",1000,1000-1);
-    }
-
-    @Test
-    public void testTakeWait1() throws Exception{
-        String dir = "/testTakeWait1";
-        final String testString = "Hello World";
-        final int num_clients = 1;
-        final ZooKeeper clients[] = new ZooKeeper[num_clients];
-        final DistributedQueue queueHandles[] = new DistributedQueue[num_clients];
-        for(int i=0; i < clients.length; i++){
-            clients[i] = createClient();
-            queueHandles[i] = new DistributedQueue(clients[i], dir, null);
-        }
-
-        final byte[] takeResult[] = new byte[1][];
-        Thread takeThread = new Thread(){
-            public void run(){
-                try{
-                    takeResult[0] = queueHandles[0].take();
-                }catch(KeeperException e){
-
-                }catch(InterruptedException e){
-
-                }
-            }
-        };
-        takeThread.start();
-
-        Thread.sleep(1000);
-        Thread offerThread= new Thread() {
-            public void run(){
-                try {
-                    queueHandles[0].offer(testString.getBytes());
-                } catch (KeeperException e) {
-
-                } catch (InterruptedException e) {
-
-                }
-            }
-        };
-        offerThread.start();
-        offerThread.join();
-
-        takeThread.join();
-
-        Assert.assertTrue(takeResult[0] != null);
-        Assert.assertEquals(new String(takeResult[0]), testString);
-    }
-
-    @Test
-    public void testTakeWait2() throws Exception{
-        String dir = "/testTakeWait2";
-        final String testString = "Hello World";
-        final int num_clients = 1;
-        final ZooKeeper clients[] = new ZooKeeper[num_clients];
-        final DistributedQueue queueHandles[] = new DistributedQueue[num_clients];
-        for(int i=0; i < clients.length; i++){
-            clients[i] = createClient();
-            queueHandles[i] = new DistributedQueue(clients[i], dir, null);
-        }
-        int num_attempts =2;
-        for(int i=0; i< num_attempts; i++){
-            final byte[] takeResult[] = new byte[1][];
-            final String threadTestString = testString + i;
-            Thread takeThread = new Thread(){
-                public void run(){
-                    try{
-                        takeResult[0] = queueHandles[0].take();
-                    }catch(KeeperException e){
-
-                    }catch(InterruptedException e){
-
-                    }
-                }
-            };
-            takeThread.start();
-
-            Thread.sleep(1000);
-            Thread offerThread= new Thread() {
-                public void run(){
-                    try {
-                        queueHandles[0].offer(threadTestString.getBytes());
-                    } catch (KeeperException e) {
-
-                    } catch (InterruptedException e) {
-
-                    }
-                }
-            };
-            offerThread.start();
-            offerThread.join();
-
-            takeThread.join();
-
-            Assert.assertTrue(takeResult[0] != null);
-            Assert.assertEquals(new String(takeResult[0]), threadTestString);
-        }
-    }
-}
-

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-docs/src/documentation/content/xdocs/recipes.xml
----------------------------------------------------------------------
diff --git a/zookeeper-docs/src/documentation/content/xdocs/recipes.xml b/zookeeper-docs/src/documentation/content/xdocs/recipes.xml
index ead041b..df45fe1 100644
--- a/zookeeper-docs/src/documentation/content/xdocs/recipes.xml
+++ b/zookeeper-docs/src/documentation/content/xdocs/recipes.xml
@@ -270,7 +270,7 @@
     <note>
       <para>There now exists a Queue implementation in ZooKeeper
       recipes directory. This is distributed with the release --
-      src/recipes/queue directory of the release artifact.
+      zookeeper-recipes/zookeeper-recipes-queue directory of the release artifact.
       </para>
     </note>
 
@@ -299,7 +299,7 @@
     <note>
       <para>There now exists a Lock implementation in ZooKeeper
       recipes directory. This is distributed with the release --
-      src/recipes/lock directory of the release artifact.
+      zookeeper-recipes/zookeeper-recipes- directory of the release artifact.
       </para>
     </note>
 

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/README.txt
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/README.txt b/zookeeper-recipes/README.txt
new file mode 100644
index 0000000..9ee058f
--- /dev/null
+++ b/zookeeper-recipes/README.txt
@@ -0,0 +1,26 @@
+1) This source directory contains various Zookeeper recipe implementations. 
+
+2) The recipe directory name should specify the name of the recipe you are implementing - eg. zookeeper-recipes-lock/.
+
+3) It would be great if you can provide both the java and c recipes for the zookeeper recipes.
+    C recipes go in to zookeeper-recipes/zookeeper-recipes-[recipe-name]/src/c
+    Java implementation goes into zookeeper-recipes/zookeeper-recipes-[recipe-name]/src/java.
+
+4) The recipes hold high standards like our zookeeper c/java libraries, so make sure that you include
+some unit testing with both the c and java recipe code.
+
+5) Also, please name your c client public methods as
+zkr_recipe-name_methodname
+(eg. zkr_lock_lock in zookeeper-recipes-lock/src/c)
+
+6) The various recipes are in ../docs/recipes.html or
+../../docs/reciped.pdf. Also, this is not an exhaustive list by any chance.
+Zookeeper is used (and can be used) for more than what we have listed in the docs.
+
+7) To run the c tests in all the recipes, 
+- make sure the main zookeeper c libraries in
+{top}/src/c/ are compiled. Run autoreconf -if;./configure; make. The libaries
+will be installed in {top}/src/c/.libs. 
+- run autoreconf if;./configure;make run-check 
+  in zookeeper-recipes/$recipename/src/c
+

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/build-recipes.xml
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/build-recipes.xml b/zookeeper-recipes/build-recipes.xml
new file mode 100644
index 0000000..107b4f2
--- /dev/null
+++ b/zookeeper-recipes/build-recipes.xml
@@ -0,0 +1,177 @@
+<?xml version="1.0"?>
+
+<!--
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You under the Apache License, Version 2.0
+   (the "License"); you may not use this file except in compliance with
+   the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+-->
+
+<!-- Imported by recipesb/*/build.xml files to share generic targets. -->
+
+<project name="zookeeperbuildrecipes">
+
+  <property name="name" value="${ant.project.name}"/>
+  <property name="root" value="${basedir}"/>
+
+  <property name="zk.root" location="${root}/../../"/>
+
+  <property name="src.dir"  location="${root}/src/java"/>
+  <property name="src.test" location="${root}/src/test"/>
+
+  <property name="build.dir" location="${zk.root}/build/recipes/${name}"/>
+  <property name="build.classes" location="${build.dir}/classes"/>
+  <property name="build.test" location="${build.dir}/test"/>
+
+  <property name="javac.deprecation" value="on"/>
+  <property name="javac.debug" value="on"/>
+
+  <property name="build.encoding" value="ISO-8859-1"/>
+
+  <!-- to be overridden by sub-projects -->
+  <target name="check-recipes"/>
+  <target name="init-recipes"/>
+
+  <property name="lib.jars.includes" value="lib/*.jar" />
+  <property name="lib.jars.excludes" value="" />
+
+  <!-- prior to ant 1.7.1 fileset always fails if dir doesn't exist
+       so just point to bin directory and provide settings that exclude
+       everything - user can change as appropriate -->
+  <property name="additional.lib.dir" value="${zk.root}/bin" />
+  <property name="additional.lib.dir.includes" value="**/*.jar" />
+  <property name="additional.lib.dir.excludes" value="**/*.jar" />
+
+  <fileset id="lib.jars" dir="${root}">
+    <include name="${lib.jars.includes}" />
+    <exclude name="${lib.jars.excludes}" />
+  </fileset>
+
+  <path id="classpath">
+    <pathelement location="${build.classes}"/>
+    <!-- allow the user to override (e.g. if there are local versions) -->
+    <fileset dir="${additional.lib.dir}">
+      <include name="${additional.lib.dir.includes}" />
+      <exclude name="${additional.lib.dir.excludes}" />
+    </fileset>
+    <fileset refid="lib.jars"/>
+    <pathelement location="${zk.root}/build/classes"/>
+    <fileset dir="${zk.root}/build/lib">
+      <include name="**/*.jar" />
+    </fileset>
+    <fileset dir="${zk.root}/build/test/lib">
+      <include name="**/*.jar"/>
+    </fileset>
+    <fileset dir="${zk.root}/src/java/lib">
+      <include name="**/*.jar" />
+    </fileset>
+  </path>
+
+  <!-- ====================================================== -->
+  <!-- Stuff needed by all targets                            -->
+  <!-- ====================================================== -->
+  <target name="init" depends="check-recipes" unless="skip.recipes">
+    <echo message="recipes: ${name}"/>
+    <mkdir dir="${build.dir}"/>
+    <mkdir dir="${build.classes}"/>
+    <mkdir dir="${build.test}"/>
+    <antcall target="init-recipes"/>
+  </target>
+
+  <!-- ====================================================== -->
+  <!-- Compile a recipes files                                -->
+  <!-- ====================================================== -->
+  <target name="compile" depends="init" unless="skip.contrib">
+    <echo message="contrib: ${name}"/>
+
+    <javac
+     encoding="${build.encoding}"
+     srcdir="${src.dir}"
+     includes="**/*.java"
+     destdir="${build.classes}"
+     debug="${javac.debug}"
+     deprecation="${javac.deprecation}">
+      <classpath refid="classpath"/>
+    </javac>
+  </target>
+
+  <!-- ====================================================== -->
+  <!-- Make a recipes jar                                     -->
+  <!-- ====================================================== -->
+  <target name="jar" depends="compile" unless="skip.recipes">
+    <echo message="recipes: ${name}"/>
+    <jar
+      jarfile="${build.dir}/zookeeper-${version}-recipes-${name}.jar"
+      basedir="${build.classes}"      
+    />
+  </target>
+
+  <!-- ====================================================== -->
+  <!-- Package a recipes files                                -->
+  <!-- ====================================================== -->
+  <target name="package" depends="jar" unless="skip.recipes"> 
+    <echo message="recipes: ${name}"/>
+
+    <mkdir dir="${dist.dir}${package.share}/recipes/${name}"/>
+    <copy todir="${dist.dir}${package.share}/recipes/${name}" includeEmptyDirs="false"
+          flatten="true">
+      <fileset dir="${build.dir}">
+        <include name="zookeeper-${version}-recipes-${name}.jar" />
+      </fileset>
+    </copy>
+  </target>
+
+  <!-- ================================================================== -->
+  <!-- Clean.  Delete the build files, and their directories              -->
+  <!-- ================================================================== -->
+  <target name="clean">
+    <echo message="recipes: ${name}"/>
+    <delete dir="${build.dir}"/>
+  </target>
+
+  <!-- ====================================================== -->
+  <!-- rpm a contrib's files                                  -->
+  <!-- ====================================================== -->
+  <target name="rpm" depends="jar" unless="skip.contrib">
+    <echo message="recipes: ${name}"/>
+
+  </target>
+
+  <!-- ====================================================== -->
+  <!-- deb a contrib's files                                  -->
+  <!-- ====================================================== -->
+  <target name="deb" depends="jar" unless="skip.contrib">
+    <echo message="recipes: ${name}"/>
+
+  </target>
+
+  <!-- ================================================================== -->
+  <!-- Utility features                                                   -->
+  <!-- ================================================================== -->
+
+  <target name="checkMainIsAvailable">
+    <available classname="org.apache.zookeeper.ZooKeeperMain"
+               property="mainIsCompiled">
+      <!-- we can't use id=classpath, because available fails if fileset directory
+           doesn't exist -->
+      <classpath>
+        <pathelement location="${zk.root}/build/classes"/>
+      </classpath>
+    </available>
+  </target>
+
+  <target name="checkMainCompiled" unless="mainIsCompiled" depends="checkMainIsAvailable">
+    <fail message="ZooKeeper main must first be compiled (toplevel build.xml)"/>
+  </target>
+
+</project>

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/build.xml
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/build.xml b/zookeeper-recipes/build.xml
new file mode 100644
index 0000000..cd73104
--- /dev/null
+++ b/zookeeper-recipes/build.xml
@@ -0,0 +1,79 @@
+<?xml version="1.0"?>
+
+<!--
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You under the Apache License, Version 2.0
+   (the "License"); you may not use this file except in compliance with
+   the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+-->
+
+<project name="zookeeperrecipes" default="compile" basedir=".">
+  
+  <!-- In case one of the contrib subdirectories -->
+  <!-- fails the build or test targets and you cannot fix it: -->
+  <!-- Then add to fileset: excludes="badcontrib/build.xml" -->
+
+  <!-- ====================================================== -->
+  <!-- Compile contribs.                                      -->
+  <!-- ====================================================== -->
+  <target name="compile">
+    <subant target="jar">
+      <fileset dir="." includes="*/build.xml"/>
+    </subant>
+  </target>
+  
+  <!-- ====================================================== -->
+  <!-- Package contrib jars.                                  -->
+  <!-- ====================================================== -->
+  <target name="package">
+    <subant target="package">
+      <fileset dir="." includes="*/build.xml"/>
+    </subant>
+  </target>
+  
+  <!-- ====================================================== -->
+  <!-- Test all the contribs.                               -->
+  <!-- ====================================================== -->
+  <target name="test">
+    <subant target="test">
+      <fileset dir="." includes="*/build.xml"/>
+    </subant>
+  </target>
+  
+  <!-- ====================================================== -->
+  <!-- Clean all the contribs.                              -->
+  <!-- ====================================================== -->
+  <target name="clean">
+    <subant target="clean">
+      <fileset dir="." includes="*/build.xml"/>
+    </subant>
+  </target>
+
+  <!-- ====================================================== -->
+  <!-- rpm all the contribs.                                  -->
+  <!-- ====================================================== -->
+  <target name="rpm">
+    <subant target="rpm">
+      <fileset dir="." includes="*/build.xml"/>
+    </subant>
+  </target>
+
+  <!-- ====================================================== -->
+  <!-- deb all the contribs.                                  -->
+  <!-- ====================================================== -->
+  <target name="deb">
+    <subant target="deb">
+      <fileset dir="." includes="*/build.xml"/>
+    </subant>
+  </target>
+</project>

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/election/README.txt
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/election/README.txt b/zookeeper-recipes/election/README.txt
new file mode 100644
index 0000000..10447ed
--- /dev/null
+++ b/zookeeper-recipes/election/README.txt
@@ -0,0 +1,27 @@
+<!--
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You under the Apache License, Version 2.0
+   (the "License"); you may not use this file except in compliance with
+   the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+-->
+
+1) This election interface recipe implements the leader election recipe
+mentioned in ../../../docs/recipes.[html,pdf].
+
+2) To compile the leader election java recipe you can just run ant jar from
+this directory.
+Please report any bugs on the jira 
+
+http://issues.apache.org/jira/browse/ZOOKEEPER
+
+  

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/election/build.xml
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/election/build.xml b/zookeeper-recipes/election/build.xml
new file mode 100644
index 0000000..3e1bcb8
--- /dev/null
+++ b/zookeeper-recipes/election/build.xml
@@ -0,0 +1,128 @@
+<!--
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You under the Apache License, Version 2.0
+   (the "License"); you may not use this file except in compliance with
+   the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+-->
+
+<project name="election" default="jar">
+  <import file="../build-recipes.xml"/>
+    <property name="test.main.classes" value="${zk.root}/build/test/classes"/>
+    <property name="test.build.dir" value="${build.test}" />
+    <property name="test.src.dir" value="test"/>
+    <property name="test.log.dir" value="${test.build.dir}/logs" />
+    <property name="test.data.dir" value="${test.build.dir}/data" />
+    <property name="test.data.upgrade.dir" value="${test.data.dir}/upgrade" />
+    <property name="test.tmp.dir" value="${test.build.dir}/tmp" />
+    <property name="test.output" value="no" />
+    <property name="test.timeout" value="900000" />
+    <property name="test.junit.output.format" value="plain" />
+    <property name="test.junit.fork.mode" value="perTest" />
+    <property name="test.junit.printsummary" value="yes" />
+    <property name="test.junit.haltonfailure" value="no" />
+    <property name="test.junit.maxmem" value="512m" />
+
+  <target name="setjarname">
+    <property name="jarname"
+              value="${build.dir}/zookeeper-${version}-recipes-${name}.jar"/>
+  </target>
+
+  <!-- Override jar target to specify main class -->
+  <target name="jar" depends="checkMainCompiled, setjarname, compile">
+    <echo message="recipes: ${name}"/>
+
+    <jar jarfile="${jarname}">
+      <fileset file="${zk.root}/LICENSE.txt" />
+      <fileset dir="${build.classes}"/>
+      <fileset dir="${build.test}"/>
+    </jar>
+  </target>
+
+	<target name="test" depends="compile-test,test-init,test-category,junit.run" />
+
+	<target name="compile-test" depends="compile">
+  		<property name="target.jdk" value="${ant.java.version}" />	
+		<property name="src.test.local" location="${basedir}/test" />
+		<mkdir dir="${build.test}"/>
+		<javac srcdir="${src.test.local}" 
+			destdir="${build.test}" 
+			target="${target.jdk}" 
+			debug="on" >
+			<classpath refid="classpath" />
+                        <classpath>
+                        <pathelement path="${test.main.classes}"/>
+                        </classpath>
+		</javac>
+	</target>
+	
+    <target name="test-init" depends="jar,compile-test">
+        <delete dir="${test.log.dir}" />
+        <delete dir="${test.tmp.dir}" />
+        <delete dir="${test.data.dir}" />
+        <mkdir dir="${test.log.dir}" />
+        <mkdir dir="${test.tmp.dir}" />
+        <mkdir dir="${test.data.dir}" />
+    </target>
+
+	<target name="test-category">
+         <property name="test.category" value=""/>
+    </target>
+
+	<target name="junit.run">
+		<echo message="${test.src.dir}" />
+        <junit showoutput="${test.output}"
+               printsummary="${test.junit.printsummary}"
+               haltonfailure="${test.junit.haltonfailure}"
+               fork="yes"
+               forkmode="${test.junit.fork.mode}"
+               maxmemory="${test.junit.maxmem}"
+               dir="${basedir}" timeout="${test.timeout}"
+               errorProperty="tests.failed" failureProperty="tests.failed">
+          <sysproperty key="build.test.dir" value="${test.tmp.dir}" />
+          <sysproperty key="test.data.dir" value="${test.data.dir}" />
+          <sysproperty key="log4j.configuration"
+                    value="file:${basedir}/conf/log4j.properties" />
+          <classpath refid="classpath"/>
+          <classpath>
+             <pathelement path="${build.test}" />
+             <pathelement path="${test.main.classes}"/>
+          </classpath>
+          <formatter type="${test.junit.output.format}" />
+          <batchtest todir="${test.log.dir}" unless="testcase">
+              <fileset dir="${test.src.dir}"
+                     includes="**/*${test.category}Test.java"/>
+          </batchtest>
+          <batchtest todir="${test.log.dir}" if="testcase">
+              <fileset dir="${test.src.dir}" includes="**/${testcase}.java"/>
+          </batchtest>
+       </junit>
+            <fail if="tests.failed">Tests failed!</fail>
+    </target>
+
+  <target name="package" depends="jar, zookeeperbuildrecipes.package"
+          unless="skip.recipes">
+
+    <copy file="${basedir}/build.xml" todir="${dist.dir}/recipes/${name}"/>
+
+    <mkdir dir="${dist.dir}/recipes/${name}/test"/>
+    <copy todir="${dist.dir}/recipes/${name}/test">
+      <fileset dir="${basedir}/test"/>
+    </copy>
+    <mkdir dir="${dist.dir}/recipes/${name}/src"/>
+    <copy todir="${dist.dir}/recipes/${name}/src">
+      <fileset dir="${basedir}/src"/>
+    </copy>
+  </target>
+
+</project>
+


[10/10] zookeeper git commit: ZOOKEEPER-3033: branch-3.4 - MAVEN MIGRATION - Step 1.2 - zk-recipes

Posted by an...@apache.org.
ZOOKEEPER-3033: branch-3.4 - MAVEN MIGRATION - Step 1.2 - zk-recipes

This is the structure for zk-recipes. (Already in 3.5 and 3.6)

Author: Norbert Kalmar <nk...@yahoo.com>

Reviewers: andor@apache.org

Closes #569 from nkalmar/ZOOKEEPER-3033-3.4


Project: http://git-wip-us.apache.org/repos/asf/zookeeper/repo
Commit: http://git-wip-us.apache.org/repos/asf/zookeeper/commit/e5b4b94d
Tree: http://git-wip-us.apache.org/repos/asf/zookeeper/tree/e5b4b94d
Diff: http://git-wip-us.apache.org/repos/asf/zookeeper/diff/e5b4b94d

Branch: refs/heads/branch-3.4
Commit: e5b4b94de6fa56fecda8520a01212176edd699cb
Parents: c1efa95
Author: Norbert Kalmar <nk...@yahoo.com>
Authored: Tue Jul 17 10:38:35 2018 +0200
Committer: Andor Molnar <an...@apache.org>
Committed: Tue Jul 17 10:38:35 2018 +0200

----------------------------------------------------------------------
 build.xml                                       |    2 +-
 src/recipes/README.txt                          |   25 -
 src/recipes/build-recipes.xml                   |  177 ---
 src/recipes/build.xml                           |   79 --
 src/recipes/election/README.txt                 |   27 -
 src/recipes/election/build.xml                  |  128 --
 .../recipes/leader/LeaderElectionAware.java     |   37 -
 .../recipes/leader/LeaderElectionSupport.java   |  461 -------
 .../zookeeper/recipes/leader/LeaderOffer.java   |   84 --
 .../leader/LeaderElectionSupportTest.java       |  249 ----
 src/recipes/lock/README.txt                     |   28 -
 src/recipes/lock/build.xml                      |  128 --
 src/recipes/lock/src/c/INSTALL                  |  234 ----
 src/recipes/lock/src/c/LICENSE                  |  202 ---
 src/recipes/lock/src/c/Makefile.am              |   46 -
 src/recipes/lock/src/c/README.txt               |   28 -
 src/recipes/lock/src/c/acinclude.m4             |  312 -----
 src/recipes/lock/src/c/aminclude.am             |  186 ---
 src/recipes/lock/src/c/c-doc.Doxyfile           | 1252 ------------------
 src/recipes/lock/src/c/configure.ac             |   82 --
 src/recipes/lock/src/c/include/zoo_lock.h       |  168 ---
 src/recipes/lock/src/c/src/zoo_lock.c           |  396 ------
 src/recipes/lock/src/c/tests/TestClient.cc      |  201 ---
 src/recipes/lock/src/c/tests/TestDriver.cc      |  114 --
 src/recipes/lock/src/c/tests/Util.cc            |   30 -
 src/recipes/lock/src/c/tests/Util.h             |  134 --
 src/recipes/lock/src/c/tests/zkServer.sh        |   75 --
 .../zookeeper/recipes/lock/LockListener.java    |   38 -
 .../zookeeper/recipes/lock/ProtocolSupport.java |  193 ---
 .../zookeeper/recipes/lock/WriteLock.java       |  296 -----
 .../zookeeper/recipes/lock/ZNodeName.java       |  112 --
 .../recipes/lock/ZooKeeperOperation.java        |   38 -
 .../zookeeper/recipes/lock/WriteLockTest.java   |  156 ---
 .../zookeeper/recipes/lock/ZNodeNameTest.java   |   71 -
 src/recipes/queue/README.txt                    |   30 -
 src/recipes/queue/build.xml                     |  128 --
 src/recipes/queue/src/c/INSTALL                 |  234 ----
 src/recipes/queue/src/c/LICENSE                 |  202 ---
 src/recipes/queue/src/c/Makefile.am             |   46 -
 src/recipes/queue/src/c/README.txt              |   30 -
 src/recipes/queue/src/c/acinclude.m4            |  312 -----
 src/recipes/queue/src/c/aminclude.am            |  186 ---
 src/recipes/queue/src/c/c-doc.Doxyfile          | 1252 ------------------
 src/recipes/queue/src/c/configure.ac            |   82 --
 src/recipes/queue/src/c/include/zoo_queue.h     |  118 --
 src/recipes/queue/src/c/src/zoo_queue.c         |  442 -------
 src/recipes/queue/src/c/tests/TestClient.cc     |  452 -------
 src/recipes/queue/src/c/tests/TestDriver.cc     |  114 --
 src/recipes/queue/src/c/tests/Util.cc           |   30 -
 src/recipes/queue/src/c/tests/Util.h            |  134 --
 src/recipes/queue/src/c/tests/zkServer.sh       |   75 --
 .../recipes/queue/DistributedQueue.java         |  313 -----
 .../recipes/queue/DistributedQueueTest.java     |  286 ----
 .../src/documentation/content/xdocs/recipes.xml |    4 +-
 zookeeper-recipes/README.txt                    |   26 +
 zookeeper-recipes/build-recipes.xml             |  177 +++
 zookeeper-recipes/build.xml                     |   79 ++
 zookeeper-recipes/election/README.txt           |   27 +
 zookeeper-recipes/election/build.xml            |  128 ++
 .../recipes/leader/LeaderElectionAware.java     |   37 +
 .../recipes/leader/LeaderElectionSupport.java   |  461 +++++++
 .../zookeeper/recipes/leader/LeaderOffer.java   |   84 ++
 .../leader/LeaderElectionSupportTest.java       |  249 ++++
 zookeeper-recipes/lock/README.txt               |   28 +
 zookeeper-recipes/lock/build.xml                |  128 ++
 zookeeper-recipes/lock/src/c/INSTALL            |  234 ++++
 zookeeper-recipes/lock/src/c/LICENSE            |  202 +++
 zookeeper-recipes/lock/src/c/Makefile.am        |   46 +
 zookeeper-recipes/lock/src/c/README.txt         |   28 +
 zookeeper-recipes/lock/src/c/acinclude.m4       |  312 +++++
 zookeeper-recipes/lock/src/c/aminclude.am       |  186 +++
 zookeeper-recipes/lock/src/c/c-doc.Doxyfile     | 1252 ++++++++++++++++++
 zookeeper-recipes/lock/src/c/configure.ac       |   82 ++
 zookeeper-recipes/lock/src/c/include/zoo_lock.h |  168 +++
 zookeeper-recipes/lock/src/c/src/zoo_lock.c     |  396 ++++++
 .../lock/src/c/tests/TestClient.cc              |  201 +++
 .../lock/src/c/tests/TestDriver.cc              |  114 ++
 zookeeper-recipes/lock/src/c/tests/Util.cc      |   30 +
 zookeeper-recipes/lock/src/c/tests/Util.h       |  134 ++
 zookeeper-recipes/lock/src/c/tests/zkServer.sh  |   75 ++
 .../zookeeper/recipes/lock/LockListener.java    |   38 +
 .../zookeeper/recipes/lock/ProtocolSupport.java |  193 +++
 .../zookeeper/recipes/lock/WriteLock.java       |  296 +++++
 .../zookeeper/recipes/lock/ZNodeName.java       |  112 ++
 .../recipes/lock/ZooKeeperOperation.java        |   38 +
 .../zookeeper/recipes/lock/WriteLockTest.java   |  156 +++
 .../zookeeper/recipes/lock/ZNodeNameTest.java   |   71 +
 zookeeper-recipes/queue/README.txt              |   30 +
 zookeeper-recipes/queue/build.xml               |  128 ++
 zookeeper-recipes/queue/src/c/INSTALL           |  234 ++++
 zookeeper-recipes/queue/src/c/LICENSE           |  202 +++
 zookeeper-recipes/queue/src/c/Makefile.am       |   46 +
 zookeeper-recipes/queue/src/c/README.txt        |   30 +
 zookeeper-recipes/queue/src/c/acinclude.m4      |  312 +++++
 zookeeper-recipes/queue/src/c/aminclude.am      |  186 +++
 zookeeper-recipes/queue/src/c/c-doc.Doxyfile    | 1252 ++++++++++++++++++
 zookeeper-recipes/queue/src/c/configure.ac      |   82 ++
 .../queue/src/c/include/zoo_queue.h             |  118 ++
 zookeeper-recipes/queue/src/c/src/zoo_queue.c   |  442 +++++++
 .../queue/src/c/tests/TestClient.cc             |  452 +++++++
 .../queue/src/c/tests/TestDriver.cc             |  114 ++
 zookeeper-recipes/queue/src/c/tests/Util.cc     |   30 +
 zookeeper-recipes/queue/src/c/tests/Util.h      |  134 ++
 zookeeper-recipes/queue/src/c/tests/zkServer.sh |   75 ++
 .../recipes/queue/DistributedQueue.java         |  313 +++++
 .../recipes/queue/DistributedQueueTest.java     |  286 ++++
 106 files changed, 10257 insertions(+), 10256 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/build.xml
----------------------------------------------------------------------
diff --git a/build.xml b/build.xml
index 640be98..35fb436 100644
--- a/build.xml
+++ b/build.xml
@@ -142,7 +142,7 @@ xmlns:cs="antlib:com.puppycrawl.tools.checkstyle">
     <property name="dist.maven.dir" value="${dist.dir}/dist-maven"/>
 
     <property name="contrib.dir" value="${src.dir}/contrib"/>
-    <property name="recipes.dir" value="${src.dir}/recipes"/>
+    <property name="recipes.dir" value="${basedir}/zookeeper-recipes"/>
 
     <property name="ivy.version" value="2.4.0"/>
     <property name="ivy.url"

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/README.txt
----------------------------------------------------------------------
diff --git a/src/recipes/README.txt b/src/recipes/README.txt
deleted file mode 100644
index 4f880cd..0000000
--- a/src/recipes/README.txt
+++ /dev/null
@@ -1,25 +0,0 @@
-1) This source directory contains various Zookeeper recipe implementations. 
-
-2) The recipe directory name should specify the name of the recipe you are implementing - eg. lock/.
-
-3) It would be great if you can provide both the java and c recipes for the zookeeper recipes.
-The c recipes go in to recipe-name/src/c and the java implementation goes into recipe-name/src/java.
-
-4) The recipes hold high standards like our zookeeper c/java libraries, so make sure that you include
-some unit testing with both the c and java recipe code.
-
-5) Also, please name your c client public methods as
-zkr_recipe-name_methodname
-(eg. zkr_lock_lock in lock/src/c)
-
-6) The various recipes are in ../../docs/recipes.html or
-../../docs/reciped.pdf. Also, this is not an exhaustive list by any chance.
-Zookeeper is used (and can be used) for more than what we have listed in the docs.
-
-7) To run the c tests in all the recipes, 
-- make sure the main zookeeper c libraries in
-{top}/src/c/ are compiled. Run autoreconf -if;./configure; make. The libaries
-will be installed in {top}/src/c/.libs. 
-- run autoreconf if;./configure;make run-check 
-  in src/recipes/$recipename/src/c
-

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/build-recipes.xml
----------------------------------------------------------------------
diff --git a/src/recipes/build-recipes.xml b/src/recipes/build-recipes.xml
deleted file mode 100644
index 470f593..0000000
--- a/src/recipes/build-recipes.xml
+++ /dev/null
@@ -1,177 +0,0 @@
-<?xml version="1.0"?>
-
-<!--
-   Licensed to the Apache Software Foundation (ASF) under one or more
-   contributor license agreements.  See the NOTICE file distributed with
-   this work for additional information regarding copyright ownership.
-   The ASF licenses this file to You under the Apache License, Version 2.0
-   (the "License"); you may not use this file except in compliance with
-   the License.  You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
--->
-
-<!-- Imported by recipesb/*/build.xml files to share generic targets. -->
-
-<project name="zookeeperbuildrecipes">
-
-  <property name="name" value="${ant.project.name}"/>
-  <property name="root" value="${basedir}"/>
-
-  <property name="zk.root" location="${root}/../../../"/>
-
-  <property name="src.dir"  location="${root}/src/java"/>
-  <property name="src.test" location="${root}/src/test"/>
-
-  <property name="build.dir" location="${zk.root}/build/recipes/${name}"/>
-  <property name="build.classes" location="${build.dir}/classes"/>
-  <property name="build.test" location="${build.dir}/test"/>
-
-  <property name="javac.deprecation" value="on"/>
-  <property name="javac.debug" value="on"/>
-
-  <property name="build.encoding" value="ISO-8859-1"/>
-
-  <!-- to be overridden by sub-projects -->
-  <target name="check-recipes"/>
-  <target name="init-recipes"/>
-
-  <property name="lib.jars.includes" value="lib/*.jar" />
-  <property name="lib.jars.excludes" value="" />
-
-  <!-- prior to ant 1.7.1 fileset always fails if dir doesn't exist
-       so just point to bin directory and provide settings that exclude
-       everything - user can change as appropriate -->
-  <property name="additional.lib.dir" value="${zk.root}/bin" />
-  <property name="additional.lib.dir.includes" value="**/*.jar" />
-  <property name="additional.lib.dir.excludes" value="**/*.jar" />
-
-  <fileset id="lib.jars" dir="${root}">
-    <include name="${lib.jars.includes}" />
-    <exclude name="${lib.jars.excludes}" />
-  </fileset>
-
-  <path id="classpath">
-    <pathelement location="${build.classes}"/>
-    <!-- allow the user to override (e.g. if there are local versions) -->
-    <fileset dir="${additional.lib.dir}">
-      <include name="${additional.lib.dir.includes}" />
-      <exclude name="${additional.lib.dir.excludes}" />
-    </fileset>
-    <fileset refid="lib.jars"/>
-    <pathelement location="${zk.root}/build/classes"/>
-    <fileset dir="${zk.root}/build/lib">
-      <include name="**/*.jar" />
-    </fileset>
-    <fileset dir="${zk.root}/build/test/lib">
-      <include name="**/*.jar"/>
-    </fileset>
-    <fileset dir="${zk.root}/src/java/lib">
-      <include name="**/*.jar" />
-    </fileset>
-  </path>
-
-  <!-- ====================================================== -->
-  <!-- Stuff needed by all targets                            -->
-  <!-- ====================================================== -->
-  <target name="init" depends="check-recipes" unless="skip.recipes">
-    <echo message="recipes: ${name}"/>
-    <mkdir dir="${build.dir}"/>
-    <mkdir dir="${build.classes}"/>
-    <mkdir dir="${build.test}"/>
-    <antcall target="init-recipes"/>
-  </target>
-
-  <!-- ====================================================== -->
-  <!-- Compile a recipes files                                -->
-  <!-- ====================================================== -->
-  <target name="compile" depends="init" unless="skip.contrib">
-    <echo message="contrib: ${name}"/>
-
-    <javac
-     encoding="${build.encoding}"
-     srcdir="${src.dir}"
-     includes="**/*.java"
-     destdir="${build.classes}"
-     debug="${javac.debug}"
-     deprecation="${javac.deprecation}">
-      <classpath refid="classpath"/>
-    </javac>
-  </target>
-
-  <!-- ====================================================== -->
-  <!-- Make a recipes jar                                     -->
-  <!-- ====================================================== -->
-  <target name="jar" depends="compile" unless="skip.recipes">
-    <echo message="recipes: ${name}"/>
-    <jar
-      jarfile="${build.dir}/zookeeper-${version}-recipes-${name}.jar"
-      basedir="${build.classes}"      
-    />
-  </target>
-
-  <!-- ====================================================== -->
-  <!-- Package a recipes files                                -->
-  <!-- ====================================================== -->
-  <target name="package" depends="jar" unless="skip.recipes"> 
-    <echo message="recipes: ${name}"/>
-
-    <mkdir dir="${dist.dir}${package.share}/recipes/${name}"/>
-    <copy todir="${dist.dir}${package.share}/recipes/${name}" includeEmptyDirs="false"
-          flatten="true">
-      <fileset dir="${build.dir}">
-        <include name="zookeeper-${version}-recipes-${name}.jar" />
-      </fileset>
-    </copy>
-  </target>
-
-  <!-- ================================================================== -->
-  <!-- Clean.  Delete the build files, and their directories              -->
-  <!-- ================================================================== -->
-  <target name="clean">
-    <echo message="recipes: ${name}"/>
-    <delete dir="${build.dir}"/>
-  </target>
-
-  <!-- ====================================================== -->
-  <!-- rpm a contrib's files                                  -->
-  <!-- ====================================================== -->
-  <target name="rpm" depends="jar" unless="skip.contrib">
-    <echo message="recipes: ${name}"/>
-
-  </target>
-
-  <!-- ====================================================== -->
-  <!-- deb a contrib's files                                  -->
-  <!-- ====================================================== -->
-  <target name="deb" depends="jar" unless="skip.contrib">
-    <echo message="recipes: ${name}"/>
-
-  </target>
-
-  <!-- ================================================================== -->
-  <!-- Utility features                                                   -->
-  <!-- ================================================================== -->
-
-  <target name="checkMainIsAvailable">
-    <available classname="org.apache.zookeeper.ZooKeeperMain"
-               property="mainIsCompiled">
-      <!-- we can't use id=classpath, because available fails if fileset directory
-           doesn't exist -->
-      <classpath>
-        <pathelement location="${zk.root}/build/classes"/>
-      </classpath>
-    </available>
-  </target>
-
-  <target name="checkMainCompiled" unless="mainIsCompiled" depends="checkMainIsAvailable">
-    <fail message="ZooKeeper main must first be compiled (toplevel build.xml)"/>
-  </target>
-
-</project>

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/build.xml
----------------------------------------------------------------------
diff --git a/src/recipes/build.xml b/src/recipes/build.xml
deleted file mode 100644
index cd73104..0000000
--- a/src/recipes/build.xml
+++ /dev/null
@@ -1,79 +0,0 @@
-<?xml version="1.0"?>
-
-<!--
-   Licensed to the Apache Software Foundation (ASF) under one or more
-   contributor license agreements.  See the NOTICE file distributed with
-   this work for additional information regarding copyright ownership.
-   The ASF licenses this file to You under the Apache License, Version 2.0
-   (the "License"); you may not use this file except in compliance with
-   the License.  You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
--->
-
-<project name="zookeeperrecipes" default="compile" basedir=".">
-  
-  <!-- In case one of the contrib subdirectories -->
-  <!-- fails the build or test targets and you cannot fix it: -->
-  <!-- Then add to fileset: excludes="badcontrib/build.xml" -->
-
-  <!-- ====================================================== -->
-  <!-- Compile contribs.                                      -->
-  <!-- ====================================================== -->
-  <target name="compile">
-    <subant target="jar">
-      <fileset dir="." includes="*/build.xml"/>
-    </subant>
-  </target>
-  
-  <!-- ====================================================== -->
-  <!-- Package contrib jars.                                  -->
-  <!-- ====================================================== -->
-  <target name="package">
-    <subant target="package">
-      <fileset dir="." includes="*/build.xml"/>
-    </subant>
-  </target>
-  
-  <!-- ====================================================== -->
-  <!-- Test all the contribs.                               -->
-  <!-- ====================================================== -->
-  <target name="test">
-    <subant target="test">
-      <fileset dir="." includes="*/build.xml"/>
-    </subant>
-  </target>
-  
-  <!-- ====================================================== -->
-  <!-- Clean all the contribs.                              -->
-  <!-- ====================================================== -->
-  <target name="clean">
-    <subant target="clean">
-      <fileset dir="." includes="*/build.xml"/>
-    </subant>
-  </target>
-
-  <!-- ====================================================== -->
-  <!-- rpm all the contribs.                                  -->
-  <!-- ====================================================== -->
-  <target name="rpm">
-    <subant target="rpm">
-      <fileset dir="." includes="*/build.xml"/>
-    </subant>
-  </target>
-
-  <!-- ====================================================== -->
-  <!-- deb all the contribs.                                  -->
-  <!-- ====================================================== -->
-  <target name="deb">
-    <subant target="deb">
-      <fileset dir="." includes="*/build.xml"/>
-    </subant>
-  </target>
-</project>

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/election/README.txt
----------------------------------------------------------------------
diff --git a/src/recipes/election/README.txt b/src/recipes/election/README.txt
deleted file mode 100644
index 10447ed..0000000
--- a/src/recipes/election/README.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-<!--
-   Licensed to the Apache Software Foundation (ASF) under one or more
-   contributor license agreements.  See the NOTICE file distributed with
-   this work for additional information regarding copyright ownership.
-   The ASF licenses this file to You under the Apache License, Version 2.0
-   (the "License"); you may not use this file except in compliance with
-   the License.  You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
--->
-
-1) This election interface recipe implements the leader election recipe
-mentioned in ../../../docs/recipes.[html,pdf].
-
-2) To compile the leader election java recipe you can just run ant jar from
-this directory.
-Please report any bugs on the jira 
-
-http://issues.apache.org/jira/browse/ZOOKEEPER
-
-  

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/election/build.xml
----------------------------------------------------------------------
diff --git a/src/recipes/election/build.xml b/src/recipes/election/build.xml
deleted file mode 100644
index 3e1bcb8..0000000
--- a/src/recipes/election/build.xml
+++ /dev/null
@@ -1,128 +0,0 @@
-<!--
-   Licensed to the Apache Software Foundation (ASF) under one or more
-   contributor license agreements.  See the NOTICE file distributed with
-   this work for additional information regarding copyright ownership.
-   The ASF licenses this file to You under the Apache License, Version 2.0
-   (the "License"); you may not use this file except in compliance with
-   the License.  You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
--->
-
-<project name="election" default="jar">
-  <import file="../build-recipes.xml"/>
-    <property name="test.main.classes" value="${zk.root}/build/test/classes"/>
-    <property name="test.build.dir" value="${build.test}" />
-    <property name="test.src.dir" value="test"/>
-    <property name="test.log.dir" value="${test.build.dir}/logs" />
-    <property name="test.data.dir" value="${test.build.dir}/data" />
-    <property name="test.data.upgrade.dir" value="${test.data.dir}/upgrade" />
-    <property name="test.tmp.dir" value="${test.build.dir}/tmp" />
-    <property name="test.output" value="no" />
-    <property name="test.timeout" value="900000" />
-    <property name="test.junit.output.format" value="plain" />
-    <property name="test.junit.fork.mode" value="perTest" />
-    <property name="test.junit.printsummary" value="yes" />
-    <property name="test.junit.haltonfailure" value="no" />
-    <property name="test.junit.maxmem" value="512m" />
-
-  <target name="setjarname">
-    <property name="jarname"
-              value="${build.dir}/zookeeper-${version}-recipes-${name}.jar"/>
-  </target>
-
-  <!-- Override jar target to specify main class -->
-  <target name="jar" depends="checkMainCompiled, setjarname, compile">
-    <echo message="recipes: ${name}"/>
-
-    <jar jarfile="${jarname}">
-      <fileset file="${zk.root}/LICENSE.txt" />
-      <fileset dir="${build.classes}"/>
-      <fileset dir="${build.test}"/>
-    </jar>
-  </target>
-
-	<target name="test" depends="compile-test,test-init,test-category,junit.run" />
-
-	<target name="compile-test" depends="compile">
-  		<property name="target.jdk" value="${ant.java.version}" />	
-		<property name="src.test.local" location="${basedir}/test" />
-		<mkdir dir="${build.test}"/>
-		<javac srcdir="${src.test.local}" 
-			destdir="${build.test}" 
-			target="${target.jdk}" 
-			debug="on" >
-			<classpath refid="classpath" />
-                        <classpath>
-                        <pathelement path="${test.main.classes}"/>
-                        </classpath>
-		</javac>
-	</target>
-	
-    <target name="test-init" depends="jar,compile-test">
-        <delete dir="${test.log.dir}" />
-        <delete dir="${test.tmp.dir}" />
-        <delete dir="${test.data.dir}" />
-        <mkdir dir="${test.log.dir}" />
-        <mkdir dir="${test.tmp.dir}" />
-        <mkdir dir="${test.data.dir}" />
-    </target>
-
-	<target name="test-category">
-         <property name="test.category" value=""/>
-    </target>
-
-	<target name="junit.run">
-		<echo message="${test.src.dir}" />
-        <junit showoutput="${test.output}"
-               printsummary="${test.junit.printsummary}"
-               haltonfailure="${test.junit.haltonfailure}"
-               fork="yes"
-               forkmode="${test.junit.fork.mode}"
-               maxmemory="${test.junit.maxmem}"
-               dir="${basedir}" timeout="${test.timeout}"
-               errorProperty="tests.failed" failureProperty="tests.failed">
-          <sysproperty key="build.test.dir" value="${test.tmp.dir}" />
-          <sysproperty key="test.data.dir" value="${test.data.dir}" />
-          <sysproperty key="log4j.configuration"
-                    value="file:${basedir}/conf/log4j.properties" />
-          <classpath refid="classpath"/>
-          <classpath>
-             <pathelement path="${build.test}" />
-             <pathelement path="${test.main.classes}"/>
-          </classpath>
-          <formatter type="${test.junit.output.format}" />
-          <batchtest todir="${test.log.dir}" unless="testcase">
-              <fileset dir="${test.src.dir}"
-                     includes="**/*${test.category}Test.java"/>
-          </batchtest>
-          <batchtest todir="${test.log.dir}" if="testcase">
-              <fileset dir="${test.src.dir}" includes="**/${testcase}.java"/>
-          </batchtest>
-       </junit>
-            <fail if="tests.failed">Tests failed!</fail>
-    </target>
-
-  <target name="package" depends="jar, zookeeperbuildrecipes.package"
-          unless="skip.recipes">
-
-    <copy file="${basedir}/build.xml" todir="${dist.dir}/recipes/${name}"/>
-
-    <mkdir dir="${dist.dir}/recipes/${name}/test"/>
-    <copy todir="${dist.dir}/recipes/${name}/test">
-      <fileset dir="${basedir}/test"/>
-    </copy>
-    <mkdir dir="${dist.dir}/recipes/${name}/src"/>
-    <copy todir="${dist.dir}/recipes/${name}/src">
-      <fileset dir="${basedir}/src"/>
-    </copy>
-  </target>
-
-</project>
-

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderElectionAware.java
----------------------------------------------------------------------
diff --git a/src/recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderElectionAware.java b/src/recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderElectionAware.java
deleted file mode 100644
index 6c32ebc..0000000
--- a/src/recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderElectionAware.java
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.zookeeper.recipes.leader;
-
-import org.apache.zookeeper.recipes.leader.LeaderElectionSupport.EventType;
-
-/**
- * An interface to be implemented by clients that want to receive election
- * events.
- */
-public interface LeaderElectionAware {
-
-  /**
-   * Called during each state transition. Current, low level events are provided
-   * at the beginning and end of each state. For instance, START may be followed
-   * by OFFER_START, OFFER_COMPLETE, DETERMINE_START, DETERMINE_COMPLETE, and so
-   * on.
-   * 
-   * @param eventType
-   */
-  public void onElectionEvent(EventType eventType);
-
-}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderElectionSupport.java
----------------------------------------------------------------------
diff --git a/src/recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderElectionSupport.java b/src/recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderElectionSupport.java
deleted file mode 100644
index 8f8ae20..0000000
--- a/src/recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderElectionSupport.java
+++ /dev/null
@@ -1,461 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.zookeeper.recipes.leader;
-
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
-
-import org.apache.zookeeper.CreateMode;
-import org.apache.zookeeper.KeeperException;
-import org.apache.zookeeper.WatchedEvent;
-import org.apache.zookeeper.Watcher;
-import org.apache.zookeeper.ZooDefs;
-import org.apache.zookeeper.ZooKeeper;
-import org.apache.zookeeper.data.Stat;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * <p>
- * A leader election support library implementing the ZooKeeper election recipe.
- * </p>
- * <p>
- * This support library is meant to simplify the construction of an exclusive
- * leader system on top of Apache ZooKeeper. Any application that can become the
- * leader (usually a process that provides a service, exclusively) would
- * configure an instance of this class with their hostname, at least one
- * listener (an implementation of {@link LeaderElectionAware}), and either an
- * instance of {@link ZooKeeper} or the proper connection information. Once
- * configured, invoking {@link #start()} will cause the client to connect to
- * ZooKeeper and create a leader offer. The library then determines if it has
- * been elected the leader using the algorithm described below. The client
- * application can follow all state transitions via the listener callback.
- * </p>
- * <p>
- * Leader election algorithm
- * </p>
- * <p>
- * The library starts in a START state. Through each state transition, a state
- * start and a state complete event are sent to all listeners. When
- * {@link #start()} is called, a leader offer is created in ZooKeeper. A leader
- * offer is an ephemeral sequential node that indicates a process that can act
- * as a leader for this service. A read of all leader offers is then performed.
- * The offer with the lowest sequence number is said to be the leader. The
- * process elected leader will transition to the leader state. All other
- * processes will transition to a ready state. Internally, the library creates a
- * ZooKeeper watch on the leader offer with the sequence ID of N - 1 (where N is
- * the process's sequence ID). If that offer disappears due to a process
- * failure, the watching process will run through the election determination
- * process again to see if it should become the leader. Note that sequence ID
- * may not be contiguous due to failed processes. A process may revoke its offer
- * to be the leader at any time by calling {@link #stop()}.
- * </p>
- * <p>
- * Guarantees (not) Made and Caveats
- * </p>
- * <p>
- * <ul>
- * <li>It is possible for a (poorly implemented) process to create a leader
- * offer, get the lowest sequence ID, but have something terrible occur where it
- * maintains its connection to ZK (and thus its ephemeral leader offer node) but
- * doesn't actually provide the service in question. It is up to the user to
- * ensure any failure to become the leader - and whatever that means in the
- * context of the user's application - results in a revocation of its leader
- * offer (i.e. that {@link #stop()} is called).</li>
- * <li>It is possible for ZK timeouts and retries to play a role in service
- * liveliness. In other words, if process A has the lowest sequence ID but
- * requires a few attempts to read the other leader offers' sequence IDs,
- * election can seem slow. Users should apply timeouts during the determination
- * process if they need to hit a specific SLA.</li>
- * <li>The library makes a "best effort" to detect catastrophic failures of the
- * process. It is possible that an unforeseen event results in (for instance) an
- * unchecked exception that propagates passed normal error handling code. This
- * normally doesn't matter as the same exception would almost certain destroy
- * the entire process and thus the connection to ZK and the leader offer
- * resulting in another round of leader determination.</li>
- * </ul>
- * </p>
- */
-public class LeaderElectionSupport implements Watcher {
-
-  private static final Logger logger = LoggerFactory
-      .getLogger(LeaderElectionSupport.class);
-
-  private ZooKeeper zooKeeper;
-
-  private State state;
-  private Set<LeaderElectionAware> listeners;
-
-  private String rootNodeName;
-  private LeaderOffer leaderOffer;
-  private String hostName;
-
-  public LeaderElectionSupport() {
-    state = State.STOP;
-    listeners = Collections.synchronizedSet(new HashSet<LeaderElectionAware>());
-  }
-
-  /**
-   * <p>
-   * Start the election process. This method will create a leader offer,
-   * determine its status, and either become the leader or become ready. If an
-   * instance of {@link ZooKeeper} has not yet been configured by the user, a
-   * new instance is created using the connectString and sessionTime specified.
-   * </p>
-   * <p>
-   * Any (anticipated) failures result in a failed event being sent to all
-   * listeners.
-   * </p>
-   */
-  public synchronized void start() {
-    state = State.START;
-    dispatchEvent(EventType.START);
-
-    logger.info("Starting leader election support");
-
-    if (zooKeeper == null) {
-      throw new IllegalStateException(
-          "No instance of zookeeper provided. Hint: use setZooKeeper()");
-    }
-
-    if (hostName == null) {
-      throw new IllegalStateException(
-          "No hostname provided. Hint: use setHostName()");
-    }
-
-    try {
-      makeOffer();
-      determineElectionStatus();
-    } catch (KeeperException e) {
-      becomeFailed(e);
-      return;
-    } catch (InterruptedException e) {
-      becomeFailed(e);
-      return;
-    }
-  }
-
-  /**
-   * Stops all election services, revokes any outstanding leader offers, and
-   * disconnects from ZooKeeper.
-   */
-  public synchronized void stop() {
-    state = State.STOP;
-    dispatchEvent(EventType.STOP_START);
-
-    logger.info("Stopping leader election support");
-
-    if (leaderOffer != null) {
-      try {
-        zooKeeper.delete(leaderOffer.getNodePath(), -1);
-        logger.info("Removed leader offer {}", leaderOffer.getNodePath());
-      } catch (InterruptedException e) {
-        becomeFailed(e);
-      } catch (KeeperException e) {
-        becomeFailed(e);
-      }
-    }
-
-    dispatchEvent(EventType.STOP_COMPLETE);
-  }
-
-  private void makeOffer() throws KeeperException, InterruptedException {
-    state = State.OFFER;
-    dispatchEvent(EventType.OFFER_START);
-
-    leaderOffer = new LeaderOffer();
-
-    leaderOffer.setHostName(hostName);
-    leaderOffer.setNodePath(zooKeeper.create(rootNodeName + "/" + "n_",
-        hostName.getBytes(), ZooDefs.Ids.OPEN_ACL_UNSAFE,
-        CreateMode.EPHEMERAL_SEQUENTIAL));
-
-    logger.debug("Created leader offer {}", leaderOffer);
-
-    dispatchEvent(EventType.OFFER_COMPLETE);
-  }
-
-  private void determineElectionStatus() throws KeeperException,
-      InterruptedException {
-
-    state = State.DETERMINE;
-    dispatchEvent(EventType.DETERMINE_START);
-
-    String[] components = leaderOffer.getNodePath().split("/");
-
-    leaderOffer.setId(Integer.valueOf(components[components.length - 1]
-        .substring("n_".length())));
-
-    List<LeaderOffer> leaderOffers = toLeaderOffers(zooKeeper.getChildren(
-        rootNodeName, false));
-
-    /*
-     * For each leader offer, find out where we fit in. If we're first, we
-     * become the leader. If we're not elected the leader, attempt to stat the
-     * offer just less than us. If they exist, watch for their failure, but if
-     * they don't, become the leader.
-     */
-    for (int i = 0; i < leaderOffers.size(); i++) {
-      LeaderOffer leaderOffer = leaderOffers.get(i);
-
-      if (leaderOffer.getId().equals(this.leaderOffer.getId())) {
-        logger.debug("There are {} leader offers. I am {} in line.",
-            leaderOffers.size(), i);
-
-        dispatchEvent(EventType.DETERMINE_COMPLETE);
-
-        if (i == 0) {
-          becomeLeader();
-        } else {
-          becomeReady(leaderOffers.get(i - 1));
-        }
-
-        /* Once we've figured out where we are, we're done. */
-        break;
-      }
-    }
-  }
-
-  private void becomeReady(LeaderOffer neighborLeaderOffer)
-      throws KeeperException, InterruptedException {
-    dispatchEvent(EventType.READY_START);
-
-    logger.info("{} not elected leader. Watching node:{}",
-        leaderOffer.getNodePath(), neighborLeaderOffer.getNodePath());
-
-    /*
-     * Make sure to pass an explicit Watcher because we could be sharing this
-     * zooKeeper instance with someone else.
-     */
-    Stat stat = zooKeeper.exists(neighborLeaderOffer.getNodePath(), this);
-
-    if (stat != null) {
-      logger.debug(
-          "We're behind {} in line and they're alive. Keeping an eye on them.",
-          neighborLeaderOffer.getNodePath());
-      state = State.READY;
-      dispatchEvent(EventType.READY_COMPLETE);
-    } else {
-      /*
-       * If the stat fails, the node has gone missing between the call to
-       * getChildren() and exists(). We need to try and become the leader.
-       */
-      logger
-          .info(
-              "We were behind {} but it looks like they died. Back to determination.",
-              neighborLeaderOffer.getNodePath());
-      determineElectionStatus();
-    }
-
-  }
-
-  private void becomeLeader() {
-    state = State.ELECTED;
-    dispatchEvent(EventType.ELECTED_START);
-
-    logger.info("Becoming leader with node:{}", leaderOffer.getNodePath());
-
-    dispatchEvent(EventType.ELECTED_COMPLETE);
-  }
-
-  private void becomeFailed(Exception e) {
-    logger.error("Failed in state {} - Exception:{}", state, e);
-
-    state = State.FAILED;
-    dispatchEvent(EventType.FAILED);
-  }
-
-  /**
-   * Fetch the (user supplied) hostname of the current leader. Note that by the
-   * time this method returns, state could have changed so do not depend on this
-   * to be strongly consistent. This method has to read all leader offers from
-   * ZooKeeper to deterime who the leader is (i.e. there is no caching) so
-   * consider the performance implications of frequent invocation. If there are
-   * no leader offers this method returns null.
-   * 
-   * @return hostname of the current leader
-   * @throws KeeperException
-   * @throws InterruptedException
-   */
-  public String getLeaderHostName() throws KeeperException,
-      InterruptedException {
-
-    List<LeaderOffer> leaderOffers = toLeaderOffers(zooKeeper.getChildren(
-        rootNodeName, false));
-
-    if (leaderOffers.size() > 0) {
-      return leaderOffers.get(0).getHostName();
-    }
-
-    return null;
-  }
-
-  private List<LeaderOffer> toLeaderOffers(List<String> strings)
-      throws KeeperException, InterruptedException {
-
-    List<LeaderOffer> leaderOffers = new ArrayList<LeaderOffer>(strings.size());
-
-    /*
-     * Turn each child of rootNodeName into a leader offer. This is a tuple of
-     * the sequence number and the node name.
-     */
-    for (String offer : strings) {
-      String hostName = new String(zooKeeper.getData(
-          rootNodeName + "/" + offer, false, null));
-
-      leaderOffers.add(new LeaderOffer(Integer.valueOf(offer.substring("n_"
-          .length())), rootNodeName + "/" + offer, hostName));
-    }
-
-    /*
-     * We sort leader offers by sequence number (which may not be zero-based or
-     * contiguous) and keep their paths handy for setting watches.
-     */
-    Collections.sort(leaderOffers, new LeaderOffer.IdComparator());
-
-    return leaderOffers;
-  }
-
-  @Override
-  public void process(WatchedEvent event) {
-    if (event.getType().equals(Watcher.Event.EventType.NodeDeleted)) {
-      if (!event.getPath().equals(leaderOffer.getNodePath())
-          && state != State.STOP) {
-        logger.debug(
-            "Node {} deleted. Need to run through the election process.",
-            event.getPath());
-        try {
-          determineElectionStatus();
-        } catch (KeeperException e) {
-          becomeFailed(e);
-        } catch (InterruptedException e) {
-          becomeFailed(e);
-        }
-      }
-    }
-  }
-
-  private void dispatchEvent(EventType eventType) {
-    logger.debug("Dispatching event:{}", eventType);
-
-    synchronized (listeners) {
-      if (listeners.size() > 0) {
-        for (LeaderElectionAware observer : listeners) {
-          observer.onElectionEvent(eventType);
-        }
-      }
-    }
-  }
-
-  /**
-   * Adds {@code listener} to the list of listeners who will receive events.
-   * 
-   * @param listener
-   */
-  public void addListener(LeaderElectionAware listener) {
-    listeners.add(listener);
-  }
-
-  /**
-   * Remove {@code listener} from the list of listeners who receive events.
-   * 
-   * @param listener
-   */
-  public void removeListener(LeaderElectionAware listener) {
-    listeners.remove(listener);
-  }
-
-  @Override
-  public String toString() {
-    return "{ state:" + state + " leaderOffer:" + leaderOffer + " zooKeeper:"
-        + zooKeeper + " hostName:" + hostName + " listeners:" + listeners
-        + " }";
-  }
-
-  /**
-   * <p>
-   * Gets the ZooKeeper root node to use for this service.
-   * </p>
-   * <p>
-   * For instance, a root node of {@code /mycompany/myservice} would be the
-   * parent of all leader offers for this service. Obviously all processes that
-   * wish to contend for leader status need to use the same root node. Note: We
-   * assume this node already exists.
-   * </p>
-   * 
-   * @return a znode path
-   */
-  public String getRootNodeName() {
-    return rootNodeName;
-  }
-
-  /**
-   * <p>
-   * Sets the ZooKeeper root node to use for this service.
-   * </p>
-   * <p>
-   * For instance, a root node of {@code /mycompany/myservice} would be the
-   * parent of all leader offers for this service. Obviously all processes that
-   * wish to contend for leader status need to use the same root node. Note: We
-   * assume this node already exists.
-   * </p>
-   */
-  public void setRootNodeName(String rootNodeName) {
-    this.rootNodeName = rootNodeName;
-  }
-
-  /**
-   * The {@link ZooKeeper} instance to use for all operations. Provided this
-   * overrides any connectString or sessionTimeout set.
-   */
-  public ZooKeeper getZooKeeper() {
-    return zooKeeper;
-  }
-
-  public void setZooKeeper(ZooKeeper zooKeeper) {
-    this.zooKeeper = zooKeeper;
-  }
-
-  /**
-   * The hostname of this process. Mostly used as a convenience for logging and
-   * to respond to {@link #getLeaderHostName()} requests.
-   */
-  public String getHostName() {
-    return hostName;
-  }
-
-  public void setHostName(String hostName) {
-    this.hostName = hostName;
-  }
-
-  /**
-   * The type of event.
-   */
-  public static enum EventType {
-    START, OFFER_START, OFFER_COMPLETE, DETERMINE_START, DETERMINE_COMPLETE, ELECTED_START, ELECTED_COMPLETE, READY_START, READY_COMPLETE, FAILED, STOP_START, STOP_COMPLETE,
-  }
-
-  /**
-   * The internal state of the election support service.
-   */
-  public static enum State {
-    START, OFFER, DETERMINE, ELECTED, READY, FAILED, STOP
-  }
-}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderOffer.java
----------------------------------------------------------------------
diff --git a/src/recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderOffer.java b/src/recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderOffer.java
deleted file mode 100644
index 188a6d5..0000000
--- a/src/recipes/election/src/java/org/apache/zookeeper/recipes/leader/LeaderOffer.java
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.zookeeper.recipes.leader;
-
-import java.util.Comparator;
-
-/**
- * A leader offer is a numeric id / path pair. The id is the sequential node id
- * assigned by ZooKeeper where as the path is the absolute path to the ZNode.
- */
-public class LeaderOffer {
-
-  private Integer id;
-  private String nodePath;
-  private String hostName;
-
-  public LeaderOffer() {
-    // Default constructor
-  }
-
-  public LeaderOffer(Integer id, String nodePath, String hostName) {
-    this.id = id;
-    this.nodePath = nodePath;
-    this.hostName = hostName;
-  }
-
-  @Override
-  public String toString() {
-    return "{ id:" + id + " nodePath:" + nodePath + " hostName:" + hostName
-        + " }";
-  }
-
-  public Integer getId() {
-    return id;
-  }
-
-  public void setId(Integer id) {
-    this.id = id;
-  }
-
-  public String getNodePath() {
-    return nodePath;
-  }
-
-  public void setNodePath(String nodePath) {
-    this.nodePath = nodePath;
-  }
-
-  public String getHostName() {
-    return hostName;
-  }
-
-  public void setHostName(String hostName) {
-    this.hostName = hostName;
-  }
-
-  /**
-   * Compare two instances of {@link LeaderOffer} using only the {code}id{code}
-   * member.
-   */
-  public static class IdComparator implements Comparator<LeaderOffer> {
-
-    @Override
-    public int compare(LeaderOffer o1, LeaderOffer o2) {
-      return o1.getId().compareTo(o2.getId());
-    }
-
-  }
-
-}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/election/test/org/apache/zookeeper/recipes/leader/LeaderElectionSupportTest.java
----------------------------------------------------------------------
diff --git a/src/recipes/election/test/org/apache/zookeeper/recipes/leader/LeaderElectionSupportTest.java b/src/recipes/election/test/org/apache/zookeeper/recipes/leader/LeaderElectionSupportTest.java
deleted file mode 100644
index 571d47f..0000000
--- a/src/recipes/election/test/org/apache/zookeeper/recipes/leader/LeaderElectionSupportTest.java
+++ /dev/null
@@ -1,249 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.zookeeper.recipes.leader;
-
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.atomic.AtomicInteger;
-
-import junit.framework.Assert;
-
-import org.apache.zookeeper.CreateMode;
-import org.apache.zookeeper.KeeperException;
-import org.apache.zookeeper.ZooDefs;
-import org.apache.zookeeper.ZooKeeper;
-import org.apache.zookeeper.test.ClientBase;
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Test;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-public class LeaderElectionSupportTest extends ClientBase {
-
-  private static final Logger logger = LoggerFactory
-      .getLogger(LeaderElectionSupportTest.class);
-  private static final String testRootNode = "/" + System.currentTimeMillis()
-      + "_";
-
-  private ZooKeeper zooKeeper;
-
-  @Before
-  public void setUp() throws Exception {
-    super.setUp();
-
-    zooKeeper = createClient();
-
-    zooKeeper.create(testRootNode + Thread.currentThread().getId(),
-        new byte[0], ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
-  }
-
-  @After
-  public void tearDown() throws Exception {
-    if (zooKeeper != null) {
-      zooKeeper.delete(testRootNode + Thread.currentThread().getId(), -1);
-    }
-
-    super.tearDown();
-  }
-
-  @Test
-  public void testNode() throws IOException, InterruptedException,
-      KeeperException {
-
-    LeaderElectionSupport electionSupport = createLeaderElectionSupport();
-
-    electionSupport.start();
-    Thread.sleep(3000);
-    electionSupport.stop();
-  }
-
-  @Test
-  public void testNodes3() throws IOException, InterruptedException,
-      KeeperException {
-
-    int testIterations = 3;
-    final CountDownLatch latch = new CountDownLatch(testIterations);
-    final AtomicInteger failureCounter = new AtomicInteger();
-
-    for (int i = 0; i < testIterations; i++) {
-      runElectionSupportThread(latch, failureCounter);
-    }
-
-    Assert.assertEquals(0, failureCounter.get());
-
-    if (!latch.await(10, TimeUnit.SECONDS)) {
-      logger
-          .info(
-              "Waited for all threads to start, but timed out. We had {} failures.",
-              failureCounter);
-    }
-  }
-
-  @Test
-  public void testNodes9() throws IOException, InterruptedException,
-      KeeperException {
-
-    int testIterations = 9;
-    final CountDownLatch latch = new CountDownLatch(testIterations);
-    final AtomicInteger failureCounter = new AtomicInteger();
-
-    for (int i = 0; i < testIterations; i++) {
-      runElectionSupportThread(latch, failureCounter);
-    }
-
-    Assert.assertEquals(0, failureCounter.get());
-
-    if (!latch.await(10, TimeUnit.SECONDS)) {
-      logger
-          .info(
-              "Waited for all threads to start, but timed out. We had {} failures.",
-              failureCounter);
-    }
-  }
-
-  @Test
-  public void testNodes20() throws IOException, InterruptedException,
-      KeeperException {
-
-    int testIterations = 20;
-    final CountDownLatch latch = new CountDownLatch(testIterations);
-    final AtomicInteger failureCounter = new AtomicInteger();
-
-    for (int i = 0; i < testIterations; i++) {
-      runElectionSupportThread(latch, failureCounter);
-    }
-
-    Assert.assertEquals(0, failureCounter.get());
-
-    if (!latch.await(10, TimeUnit.SECONDS)) {
-      logger
-          .info(
-              "Waited for all threads to start, but timed out. We had {} failures.",
-              failureCounter);
-    }
-  }
-
-  @Test
-  public void testNodes100() throws IOException, InterruptedException,
-      KeeperException {
-
-    int testIterations = 100;
-    final CountDownLatch latch = new CountDownLatch(testIterations);
-    final AtomicInteger failureCounter = new AtomicInteger();
-
-    for (int i = 0; i < testIterations; i++) {
-      runElectionSupportThread(latch, failureCounter);
-    }
-
-    Assert.assertEquals(0, failureCounter.get());
-
-    if (!latch.await(20, TimeUnit.SECONDS)) {
-      logger
-          .info(
-              "Waited for all threads to start, but timed out. We had {} failures.",
-              failureCounter);
-    }
-  }
-
-  @Test
-  public void testOfferShuffle() throws InterruptedException {
-    int testIterations = 10;
-    final CountDownLatch latch = new CountDownLatch(testIterations);
-    final AtomicInteger failureCounter = new AtomicInteger();
-    List<Thread> threads = new ArrayList<Thread>(testIterations);
-
-    for (int i = 1; i <= testIterations; i++) {
-      threads.add(runElectionSupportThread(latch, failureCounter,
-          Math.min(i * 1200, 10000)));
-    }
-
-    if (!latch.await(60, TimeUnit.SECONDS)) {
-      logger
-          .info(
-              "Waited for all threads to start, but timed out. We had {} failures.",
-              failureCounter);
-    }
-  }
-
-  @Test
-  public void testGetLeaderHostName() throws KeeperException,
-      InterruptedException {
-
-    LeaderElectionSupport electionSupport = createLeaderElectionSupport();
-
-    electionSupport.start();
-
-    // Sketchy: We assume there will be a leader (probably us) in 3 seconds.
-    Thread.sleep(3000);
-
-    String leaderHostName = electionSupport.getLeaderHostName();
-
-    Assert.assertNotNull(leaderHostName);
-    Assert.assertEquals("foohost", leaderHostName);
-
-    electionSupport.stop();
-  }
-
-  private LeaderElectionSupport createLeaderElectionSupport() {
-    LeaderElectionSupport electionSupport = new LeaderElectionSupport();
-
-    electionSupport.setZooKeeper(zooKeeper);
-    electionSupport.setRootNodeName(testRootNode
-        + Thread.currentThread().getId());
-    electionSupport.setHostName("foohost");
-
-    return electionSupport;
-  }
-
-  private Thread runElectionSupportThread(final CountDownLatch latch,
-      final AtomicInteger failureCounter) {
-    return runElectionSupportThread(latch, failureCounter, 3000);
-  }
-
-  private Thread runElectionSupportThread(final CountDownLatch latch,
-      final AtomicInteger failureCounter, final long sleepDuration) {
-
-    final LeaderElectionSupport electionSupport = createLeaderElectionSupport();
-
-    Thread t = new Thread() {
-
-      @Override
-      public void run() {
-        try {
-          electionSupport.start();
-          Thread.sleep(sleepDuration);
-          electionSupport.stop();
-
-          latch.countDown();
-        } catch (Exception e) {
-          logger.warn("Failed to run leader election due to: {}",
-              e.getMessage());
-          failureCounter.incrementAndGet();
-        }
-      }
-    };
-
-    t.start();
-
-    return t;
-  }
-
-}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/README.txt
----------------------------------------------------------------------
diff --git a/src/recipes/lock/README.txt b/src/recipes/lock/README.txt
deleted file mode 100644
index 1fc4fbf..0000000
--- a/src/recipes/lock/README.txt
+++ /dev/null
@@ -1,28 +0,0 @@
-<!--
-   Licensed to the Apache Software Foundation (ASF) under one or more
-   contributor license agreements.  See the NOTICE file distributed with
-   this work for additional information regarding copyright ownership.
-   The ASF licenses this file to You under the Apache License, Version 2.0
-   (the "License"); you may not use this file except in compliance with
-   the License.  You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
--->
-
-1) This lock interface recipe implements the lock recipe
-mentioned in ../../../docs/recipes.[html,pdf].
-
-2) To compile the lock java recipe you can just run ant jar from 
-this directory. For compiling the c libarary go to src/c and read
-the INSTALLATION instructions. 
-Please report any bugs on the jira 
-
-http://issues.apache.org/jira/browse/ZOOKEEPER
-
-  

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/build.xml
----------------------------------------------------------------------
diff --git a/src/recipes/lock/build.xml b/src/recipes/lock/build.xml
deleted file mode 100644
index 841cc01..0000000
--- a/src/recipes/lock/build.xml
+++ /dev/null
@@ -1,128 +0,0 @@
-<!--
-   Licensed to the Apache Software Foundation (ASF) under one or more
-   contributor license agreements.  See the NOTICE file distributed with
-   this work for additional information regarding copyright ownership.
-   The ASF licenses this file to You under the Apache License, Version 2.0
-   (the "License"); you may not use this file except in compliance with
-   the License.  You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
--->
-
-<project name="lock" default="jar">
-  <import file="../build-recipes.xml"/>
-    <property name="test.main.classes" value="${zk.root}/build/test/classes"/>
-    <property name="test.build.dir" value="${build.test}" />
-    <property name="test.src.dir" value="test"/>
-    <property name="test.log.dir" value="${test.build.dir}/logs" />
-    <property name="test.data.dir" value="${test.build.dir}/data" />
-    <property name="test.data.upgrade.dir" value="${test.data.dir}/upgrade" />
-    <property name="test.tmp.dir" value="${test.build.dir}/tmp" />
-    <property name="test.output" value="no" />
-    <property name="test.timeout" value="900000" />
-    <property name="test.junit.output.format" value="plain" />
-    <property name="test.junit.fork.mode" value="perTest" />
-    <property name="test.junit.printsummary" value="yes" />
-    <property name="test.junit.haltonfailure" value="no" />
-    <property name="test.junit.maxmem" value="512m" />
-
-  <target name="setjarname">
-    <property name="jarname"
-              value="${build.dir}/zookeeper-${version}-recipes-${name}.jar"/>
-  </target>
-
-  <!-- Override jar target to specify main class -->
-  <target name="jar" depends="checkMainCompiled, setjarname, compile">
-    <echo message="recipes: ${name}"/>
-
-    <jar jarfile="${jarname}">
-      <fileset file="${zk.root}/LICENSE.txt" />
-      <fileset dir="${build.classes}"/>
-      <fileset dir="${build.test}"/>
-    </jar>
-  </target>
-
-	<target name="test" depends="compile-test,test-init,test-category,junit.run" />
-
-	<target name="compile-test" depends="compile">
-  		<property name="target.jdk" value="${ant.java.version}" />	
-		<property name="src.test.local" location="${basedir}/test" />
-		<mkdir dir="${build.test}"/>
-		<javac srcdir="${src.test.local}" 
-			destdir="${build.test}" 
-			target="${target.jdk}" 
-			debug="on" >
-			<classpath refid="classpath" />
-                        <classpath>
-                        <pathelement path="${test.main.classes}"/>
-                        </classpath>
-		</javac>
-	</target>
-	
-    <target name="test-init" depends="jar,compile-test">
-        <delete dir="${test.log.dir}" />
-        <delete dir="${test.tmp.dir}" />
-        <delete dir="${test.data.dir}" />
-        <mkdir dir="${test.log.dir}" />
-        <mkdir dir="${test.tmp.dir}" />
-        <mkdir dir="${test.data.dir}" />
-    </target>
-
-	<target name="test-category">
-         <property name="test.category" value=""/>
-    </target>
-
-	<target name="junit.run">
-		<echo message="${test.src.dir}" />
-        <junit showoutput="${test.output}"
-               printsummary="${test.junit.printsummary}"
-               haltonfailure="${test.junit.haltonfailure}"
-               fork="yes"
-               forkmode="${test.junit.fork.mode}"
-               maxmemory="${test.junit.maxmem}"
-               dir="${basedir}" timeout="${test.timeout}"
-               errorProperty="tests.failed" failureProperty="tests.failed">
-          <sysproperty key="build.test.dir" value="${test.tmp.dir}" />
-          <sysproperty key="test.data.dir" value="${test.data.dir}" />
-          <sysproperty key="log4j.configuration"
-                    value="file:${basedir}/conf/log4j.properties" />
-          <classpath refid="classpath"/>
-          <classpath>
-             <pathelement path="${build.test}" />
-             <pathelement path="${test.main.classes}"/>
-          </classpath>
-          <formatter type="${test.junit.output.format}" />
-          <batchtest todir="${test.log.dir}" unless="testcase">
-              <fileset dir="${test.src.dir}"
-                     includes="**/*${test.category}Test.java"/>
-          </batchtest>
-          <batchtest todir="${test.log.dir}" if="testcase">
-              <fileset dir="${test.src.dir}" includes="**/${testcase}.java"/>
-          </batchtest>
-       </junit>
-            <fail if="tests.failed">Tests failed!</fail>
-    </target>
-
-  <target name="package" depends="jar, zookeeperbuildrecipes.package"
-          unless="skip.recipes">
-
-    <copy file="${basedir}/build.xml" todir="${dist.dir}${package.share}/recipes/${name}"/>
-
-    <mkdir dir="${dist.dir}${package.share}/recipes/${name}/test"/>
-    <copy todir="${dist.dir}${package.share}/recipes/${name}/test">
-      <fileset dir="${basedir}/test"/>
-    </copy>
-    <mkdir dir="${dist.dir}${package.share}/recipes/${name}/src"/>
-    <copy todir="${dist.dir}${package.share}/recipes/${name}/src">
-      <fileset dir="${basedir}/src"/>
-    </copy>
-  </target>
-
-</project>
-

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/src/c/INSTALL
----------------------------------------------------------------------
diff --git a/src/recipes/lock/src/c/INSTALL b/src/recipes/lock/src/c/INSTALL
deleted file mode 100644
index 5458714..0000000
--- a/src/recipes/lock/src/c/INSTALL
+++ /dev/null
@@ -1,234 +0,0 @@
-Installation Instructions
-*************************
-
-Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005,
-2006 Free Software Foundation, Inc.
-
-This file is free documentation; the Free Software Foundation gives
-unlimited permission to copy, distribute and modify it.
-
-Basic Installation
-==================
-
-Briefly, the shell commands `./configure; make; make install' should
-configure, build, and install this package.  The following
-more-detailed instructions are generic; see the `README' file for
-instructions specific to this package.
-
-   The `configure' shell script attempts to guess correct values for
-various system-dependent variables used during compilation.  It uses
-those values to create a `Makefile' in each directory of the package.
-It may also create one or more `.h' files containing system-dependent
-definitions.  Finally, it creates a shell script `config.status' that
-you can run in the future to recreate the current configuration, and a
-file `config.log' containing compiler output (useful mainly for
-debugging `configure').
-
-   It can also use an optional file (typically called `config.cache'
-and enabled with `--cache-file=config.cache' or simply `-C') that saves
-the results of its tests to speed up reconfiguring.  Caching is
-disabled by default to prevent problems with accidental use of stale
-cache files.
-
-   If you need to do unusual things to compile the package, please try
-to figure out how `configure' could check whether to do them, and mail
-diffs or instructions to the address given in the `README' so they can
-be considered for the next release.  If you are using the cache, and at
-some point `config.cache' contains results you don't want to keep, you
-may remove or edit it.
-
-   The file `configure.ac' (or `configure.in') is used to create
-`configure' by a program called `autoconf'.  You need `configure.ac' if
-you want to change it or regenerate `configure' using a newer version
-of `autoconf'.
-
-The simplest way to compile this package is:
-
-  1. `cd' to the directory containing the package's source code and type
-     `./configure' to configure the package for your system.
-
-     Running `configure' might take a while.  While running, it prints
-     some messages telling which features it is checking for.
-
-  2. Type `make' to compile the package.
-
-  3. Optionally, type `make check' to run any self-tests that come with
-     the package.
-
-  4. Type `make install' to install the programs and any data files and
-     documentation.
-
-  5. You can remove the program binaries and object files from the
-     source code directory by typing `make clean'.  To also remove the
-     files that `configure' created (so you can compile the package for
-     a different kind of computer), type `make distclean'.  There is
-     also a `make maintainer-clean' target, but that is intended mainly
-     for the package's developers.  If you use it, you may have to get
-     all sorts of other programs in order to regenerate files that came
-     with the distribution.
-
-Compilers and Options
-=====================
-
-Some systems require unusual options for compilation or linking that the
-`configure' script does not know about.  Run `./configure --help' for
-details on some of the pertinent environment variables.
-
-   You can give `configure' initial values for configuration parameters
-by setting variables in the command line or in the environment.  Here
-is an example:
-
-     ./configure CC=c99 CFLAGS=-g LIBS=-lposix
-
-   *Note Defining Variables::, for more details.
-
-Compiling For Multiple Architectures
-====================================
-
-You can compile the package for more than one kind of computer at the
-same time, by placing the object files for each architecture in their
-own directory.  To do this, you can use GNU `make'.  `cd' to the
-directory where you want the object files and executables to go and run
-the `configure' script.  `configure' automatically checks for the
-source code in the directory that `configure' is in and in `..'.
-
-   With a non-GNU `make', it is safer to compile the package for one
-architecture at a time in the source code directory.  After you have
-installed the package for one architecture, use `make distclean' before
-reconfiguring for another architecture.
-
-Installation Names
-==================
-
-By default, `make install' installs the package's commands under
-`/usr/local/bin', include files under `/usr/local/include', etc.  You
-can specify an installation prefix other than `/usr/local' by giving
-`configure' the option `--prefix=PREFIX'.
-
-   You can specify separate installation prefixes for
-architecture-specific files and architecture-independent files.  If you
-pass the option `--exec-prefix=PREFIX' to `configure', the package uses
-PREFIX as the prefix for installing programs and libraries.
-Documentation and other data files still use the regular prefix.
-
-   In addition, if you use an unusual directory layout you can give
-options like `--bindir=DIR' to specify different values for particular
-kinds of files.  Run `configure --help' for a list of the directories
-you can set and what kinds of files go in them.
-
-   If the package supports it, you can cause programs to be installed
-with an extra prefix or suffix on their names by giving `configure' the
-option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
-
-Optional Features
-=================
-
-Some packages pay attention to `--enable-FEATURE' options to
-`configure', where FEATURE indicates an optional part of the package.
-They may also pay attention to `--with-PACKAGE' options, where PACKAGE
-is something like `gnu-as' or `x' (for the X Window System).  The
-`README' should mention any `--enable-' and `--with-' options that the
-package recognizes.
-
-   For packages that use the X Window System, `configure' can usually
-find the X include and library files automatically, but if it doesn't,
-you can use the `configure' options `--x-includes=DIR' and
-`--x-libraries=DIR' to specify their locations.
-
-Specifying the System Type
-==========================
-
-There may be some features `configure' cannot figure out automatically,
-but needs to determine by the type of machine the package will run on.
-Usually, assuming the package is built to be run on the _same_
-architectures, `configure' can figure that out, but if it prints a
-message saying it cannot guess the machine type, give it the
-`--build=TYPE' option.  TYPE can either be a short name for the system
-type, such as `sun4', or a canonical name which has the form:
-
-     CPU-COMPANY-SYSTEM
-
-where SYSTEM can have one of these forms:
-
-     OS KERNEL-OS
-
-   See the file `config.sub' for the possible values of each field.  If
-`config.sub' isn't included in this package, then this package doesn't
-need to know the machine type.
-
-   If you are _building_ compiler tools for cross-compiling, you should
-use the option `--target=TYPE' to select the type of system they will
-produce code for.
-
-   If you want to _use_ a cross compiler, that generates code for a
-platform different from the build platform, you should specify the
-"host" platform (i.e., that on which the generated programs will
-eventually be run) with `--host=TYPE'.
-
-Sharing Defaults
-================
-
-If you want to set default values for `configure' scripts to share, you
-can create a site shell script called `config.site' that gives default
-values for variables like `CC', `cache_file', and `prefix'.
-`configure' looks for `PREFIX/share/config.site' if it exists, then
-`PREFIX/etc/config.site' if it exists.  Or, you can set the
-`CONFIG_SITE' environment variable to the location of the site script.
-A warning: not all `configure' scripts look for a site script.
-
-Defining Variables
-==================
-
-Variables not defined in a site shell script can be set in the
-environment passed to `configure'.  However, some packages may run
-configure again during the build, and the customized values of these
-variables may be lost.  In order to avoid this problem, you should set
-them in the `configure' command line, using `VAR=value'.  For example:
-
-     ./configure CC=/usr/local2/bin/gcc
-
-causes the specified `gcc' to be used as the C compiler (unless it is
-overridden in the site shell script).
-
-Unfortunately, this technique does not work for `CONFIG_SHELL' due to
-an Autoconf bug.  Until the bug is fixed you can use this workaround:
-
-     CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash
-
-`configure' Invocation
-======================
-
-`configure' recognizes the following options to control how it operates.
-
-`--help'
-`-h'
-     Print a summary of the options to `configure', and exit.
-
-`--version'
-`-V'
-     Print the version of Autoconf used to generate the `configure'
-     script, and exit.
-
-`--cache-file=FILE'
-     Enable the cache: use and save the results of the tests in FILE,
-     traditionally `config.cache'.  FILE defaults to `/dev/null' to
-     disable caching.
-
-`--config-cache'
-`-C'
-     Alias for `--cache-file=config.cache'.
-
-`--quiet'
-`--silent'
-`-q'
-     Do not print messages saying which checks are being made.  To
-     suppress all normal output, redirect it to `/dev/null' (any error
-     messages will still be shown).
-
-`--srcdir=DIR'
-     Look for the package's source code in directory DIR.  Usually
-     `configure' can determine that directory automatically.
-
-`configure' also accepts some other, not widely useful, options.  Run
-`configure --help' for more details.
-

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/src/c/LICENSE
----------------------------------------------------------------------
diff --git a/src/recipes/lock/src/c/LICENSE b/src/recipes/lock/src/c/LICENSE
deleted file mode 100644
index d645695..0000000
--- a/src/recipes/lock/src/c/LICENSE
+++ /dev/null
@@ -1,202 +0,0 @@
-
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
-
-      "License" shall mean the terms and conditions for use, reproduction,
-      and distribution as defined by Sections 1 through 9 of this document.
-
-      "Licensor" shall mean the copyright owner or entity authorized by
-      the copyright owner that is granting the License.
-
-      "Legal Entity" shall mean the union of the acting entity and all
-      other entities that control, are controlled by, or are under common
-      control with that entity. For the purposes of this definition,
-      "control" means (i) the power, direct or indirect, to cause the
-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
-      exercising permissions granted by this License.
-
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-      including but not limited to software source code, documentation
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-      designated in writing by the copyright owner as "Not a Contribution."
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-      of any other Contributor, and only if You agree to indemnify,
-      defend, and hold each Contributor harmless for any liability
-      incurred by, or claims asserted against, such Contributor by reason
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-
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-      boilerplate notice, with the fields enclosed by brackets "[]"
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http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/src/c/Makefile.am
----------------------------------------------------------------------
diff --git a/src/recipes/lock/src/c/Makefile.am b/src/recipes/lock/src/c/Makefile.am
deleted file mode 100644
index 9b36b43..0000000
--- a/src/recipes/lock/src/c/Makefile.am
+++ /dev/null
@@ -1,46 +0,0 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-include $(top_srcdir)/aminclude.am
-
-AM_CFLAGS = -Wall -fPIC -I${ZOOKEEPER_PATH}/include -I${ZOOKEEPER_PATH}/generated \
-  -I$(top_srcdir)/include -I/usr/include 
-AM_CPPFLAGS = -Wall -I${ZOOKEEPER_PATH}/include -I${ZOOKEEPER_PATH}/generated\
-  -I${top_srcdir}/include -I/usr/include
-EXTRA_DIST = LICENSE
-lib_LTLIBRARIES = libzoolock.la
-libzoolock_la_SOURCES = src/zoo_lock.c include/zoo_lock.h
-libzoolock_la_CPPFLAGS = -DDLOPEN_MODULE
-libzoolock_la_LDFLAGS = -version-info 0:1:0
-
-#run the tests now
-
-TEST_SOURCES = tests/TestDriver.cc tests/TestClient.cc tests/Util.cc 
-
-
-check_PROGRAMS = zklocktest
-nodist_zklocktest_SOURCES = ${TEST_SOURCES}
-zklocktest_LDADD =  ${ZOOKEEPER_LD} libzoolock.la -lpthread  ${CPPUNIT_LIBS}
-zklocktest_CXXFLAGS = -DUSE_STATIC_LIB ${CPPUNIT_CFLAGS}
-
-run-check: check
-	./zklocktest ${TEST_OPTIONS}
-
-clean-local: clean-check
-	${RM} ${DX_CLEANFILES}
-
-clean-check:
-	${RM} ${nodist_zklocktest_OBJECTS} 


[08/10] zookeeper git commit: ZOOKEEPER-3033: branch-3.4 - MAVEN MIGRATION - Step 1.2 - zk-recipes

Posted by an...@apache.org.
http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/src/c/src/zoo_lock.c
----------------------------------------------------------------------
diff --git a/src/recipes/lock/src/c/src/zoo_lock.c b/src/recipes/lock/src/c/src/zoo_lock.c
deleted file mode 100644
index 8a6d817..0000000
--- a/src/recipes/lock/src/c/src/zoo_lock.c
+++ /dev/null
@@ -1,396 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifdef DLL_EXPORT
-#define USE_STATIC_LIB
-#endif
-
-#if defined(__CYGWIN__)
-#define USE_IPV6
-#endif
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <zookeeper_log.h>
-#include <time.h>
-#include <sys/time.h>
-#include <sys/socket.h>
-#include <limits.h>
-#include <zoo_lock.h>
-#include <stdbool.h>
-#ifdef HAVE_SYS_UTSNAME_H
-#include <sys/utsname.h>
-#endif
-
-#ifdef HAVE_GETPWUID_R
-#include <pwd.h>
-#endif
-
-#define IF_DEBUG(x) if (logLevel==ZOO_LOG_LEVEL_DEBUG) {x;}
-
- 
-ZOOAPI int zkr_lock_init(zkr_lock_mutex_t* mutex, zhandle_t* zh,
-                      char* path, struct ACL_vector *acl) {
-    mutex->zh = zh;
-    mutex->path = path;
-    mutex->acl = acl;
-    mutex->completion = NULL;
-    mutex->cbdata = NULL;
-    mutex->id = NULL;
-    mutex->ownerid = NULL;
-    mutex->isOwner = 0;
-    pthread_mutex_init(&(mutex->pmutex), NULL);
-    return 0;
-}
-
-ZOOAPI int zkr_lock_init_cb(zkr_lock_mutex_t *mutex, zhandle_t* zh,
-                         char *path, struct ACL_vector *acl,
-                         zkr_lock_completion completion, void* cbdata) {
-    mutex->zh = zh;
-    mutex->path = path;
-    mutex->acl = acl;
-    mutex->completion = completion;
-    mutex->cbdata = cbdata;
-    mutex->isOwner = 0;
-    mutex->ownerid = NULL;
-    mutex->id = NULL;
-    pthread_mutex_init(&(mutex->pmutex), NULL);
-    return 0;
-}
-
-/**
- * unlock the mutex
- */
-ZOOAPI int zkr_lock_unlock(zkr_lock_mutex_t *mutex) {
-    pthread_mutex_lock(&(mutex->pmutex));
-    zhandle_t *zh = mutex->zh;
-    if (mutex->id != NULL) {
-        int len = strlen(mutex->path) + strlen(mutex->id) + 2;
-        char buf[len];
-        sprintf(buf, "%s/%s", mutex->path, mutex->id);
-        int ret = 0;
-        int count = 0;
-        struct timespec ts;
-        ts.tv_sec = 0;
-        ts.tv_nsec = (.5)*1000000;
-        ret = ZCONNECTIONLOSS;
-        while (ret == ZCONNECTIONLOSS && (count < 3)) {
-            ret = zoo_delete(zh, buf, -1);
-            if (ret == ZCONNECTIONLOSS) {
-                LOG_DEBUG(("connectionloss while deleting the node"));
-                nanosleep(&ts, 0);
-                count++;
-            }
-        }
-        if (ret == ZOK || ret == ZNONODE) {
-            zkr_lock_completion completion = mutex->completion;
-            if (completion != NULL) {
-                completion(1, mutex->cbdata);
-            }
-
-            free(mutex->id);
-            mutex->id = NULL;
-            pthread_mutex_unlock(&(mutex->pmutex));
-            return 0;
-        }
-        LOG_WARN(("not able to connect to server - giving up"));
-        pthread_mutex_unlock(&(mutex->pmutex));
-        return ZCONNECTIONLOSS;
-    }
-    pthread_mutex_unlock(&(mutex->pmutex));
-    return ZSYSTEMERROR;
-}
-
-static void free_String_vector(struct String_vector *v) {
-    if (v->data) {
-        int32_t i;
-        for (i=0; i<v->count; i++) {
-            free(v->data[i]);
-        }
-        free(v->data);
-        v->data = 0;
-    }
-}
-
-static int vstrcmp(const void* str1, const void* str2) {
-    const char **a = (const char**)str1;
-    const char **b = (const char**) str2;
-    return strcmp(strrchr(*a, '-')+1, strrchr(*b, '-')+1); 
-} 
-
-static void sort_children(struct String_vector *vector) {
-    qsort( vector->data, vector->count, sizeof(char*), &vstrcmp);
-}
-        
-static char* child_floor(char **sorted_data, int len, char *element) {
-    char* ret = NULL;
-    int i =0;
-    for (i=0; i < len; i++) {
-        if (strcmp(sorted_data[i], element) < 0) {
-            ret = sorted_data[i];
-        }
-    }
-    return ret;
-}
-
-static void lock_watcher_fn(zhandle_t* zh, int type, int state,
-                            const char* path, void *watcherCtx) {
-    //callback that we registered 
-    //should be called
-    zkr_lock_lock((zkr_lock_mutex_t*) watcherCtx);
-}
-
-/**
- * get the last name of the path
- */
-static char* getName(char* str) {
-    char* name = strrchr(str, '/');
-    if (name == NULL) 
-        return NULL;
-    return strdup(name + 1);
-}
-
-/**
- * just a method to retry get children
- */
-static int retry_getchildren(zhandle_t *zh, char* path, struct String_vector *vector, 
-                             struct timespec *ts, int retry) {
-    int ret = ZCONNECTIONLOSS;
-    int count = 0;
-    while (ret == ZCONNECTIONLOSS && count < retry) {
-        ret = zoo_get_children(zh, path, 0, vector);
-        if (ret == ZCONNECTIONLOSS) {
-            LOG_DEBUG(("connection loss to the server"));
-            nanosleep(ts, 0);
-            count++;
-        }
-    }
-    return ret;
-}
-
-/** see if our node already exists
- * if it does then we dup the name and 
- * return it
- */
-static char* lookupnode(struct String_vector *vector, char *prefix) {
-    char *ret = NULL;
-    if (vector->data) {
-        int i = 0;
-        for (i = 0; i < vector->count; i++) {
-            char* child = vector->data[i];
-            if (strncmp(prefix, child, strlen(prefix)) == 0) {
-                ret = strdup(child);
-                break;
-            }
-        }
-    }
-    return ret;
-}
-
-/** retry zoo_wexists
- */
-static int retry_zoowexists(zhandle_t *zh, char* path, watcher_fn watcher, void* ctx,
-                            struct Stat *stat, struct timespec *ts, int retry) {
-    int ret = ZCONNECTIONLOSS;
-    int count = 0;
-    while (ret == ZCONNECTIONLOSS && count < retry) {
-        ret = zoo_wexists(zh, path, watcher, ctx, stat);
-        if (ret == ZCONNECTIONLOSS) {
-            LOG_DEBUG(("connectionloss while setting watch on my predecessor"));
-            nanosleep(ts, 0);
-            count++;
-        }
-    }
-    return ret;
-}
-                        
-/**
- * the main code that does the zookeeper leader 
- * election. this code creates its own ephemeral 
- * node on the given path and sees if its the first
- * one on the list and claims to be a leader if and only
- * if its the first one of children in the paretn path
- */
-static int zkr_lock_operation(zkr_lock_mutex_t *mutex, struct timespec *ts) {
-    zhandle_t *zh = mutex->zh;
-    char *path = mutex->path;
-    char *id = mutex->id;
-    struct Stat stat;
-    char* owner_id = NULL;
-    int retry = 3;
-    do {
-        const clientid_t *cid = zoo_client_id(zh);
-        // get the session id
-        int64_t session = cid->client_id;
-        char prefix[30];
-        int ret = 0;
-#if defined(__x86_64__)
-        snprintf(prefix, 30, "x-%016lx-", session);
-#else 
-        snprintf(prefix, 30, "x-%016llx-", session);
-#endif
-        struct String_vector vectorst;
-        vectorst.data = NULL;
-        vectorst.count = 0;
-        ret = ZCONNECTIONLOSS;
-        ret = retry_getchildren(zh, path, &vectorst, ts, retry);
-        if (ret != ZOK)
-            return ret;
-        struct String_vector *vector = &vectorst;
-        mutex->id = lookupnode(vector, prefix);
-        free_String_vector(vector);
-        if (mutex->id == NULL) {
-            int len = strlen(path) + strlen(prefix) + 2;
-            char buf[len];
-            char retbuf[len+20];
-            snprintf(buf, len, "%s/%s", path, prefix);
-            ret = ZCONNECTIONLOSS;
-            ret = zoo_create(zh, buf, NULL, 0,  mutex->acl, 
-                             ZOO_EPHEMERAL|ZOO_SEQUENCE, retbuf, (len+20));
-            
-            // do not want to retry the create since 
-            // we would end up creating more than one child
-            if (ret != ZOK) {
-                LOG_WARN(("could not create zoo node %s", buf));
-                return ret;
-            }
-            mutex->id = getName(retbuf);
-        }
-        
-        if (mutex->id != NULL) {
-            ret = ZCONNECTIONLOSS;
-            ret = retry_getchildren(zh, path, vector, ts, retry);
-            if (ret != ZOK) {
-                LOG_WARN(("could not connect to server"));
-                return ret;
-            }
-            //sort this list
-            sort_children(vector);
-            owner_id = vector->data[0];
-            mutex->ownerid = strdup(owner_id);
-            id = mutex->id;
-            char* lessthanme = child_floor(vector->data, vector->count, id);
-            if (lessthanme != NULL) {
-                int flen = strlen(mutex->path) + strlen(lessthanme) + 2;
-                char last_child[flen];
-                sprintf(last_child, "%s/%s",mutex->path, lessthanme);
-                ret = ZCONNECTIONLOSS;
-                ret = retry_zoowexists(zh, last_child, &lock_watcher_fn, mutex, 
-                                       &stat, ts, retry);
-                // cannot watch my predecessor i am giving up
-                // we need to be able to watch the predecessor 
-                // since if we do not become a leader the others 
-                // will keep waiting
-                if (ret != ZOK) {
-                    free_String_vector(vector);
-                    LOG_WARN(("unable to watch my predecessor"));
-                    ret = zkr_lock_unlock(mutex);
-                    while (ret == 0) {
-                        //we have to give up our leadership
-                        // since we cannot watch out predecessor
-                        ret = zkr_lock_unlock(mutex);
-                    }
-                    return ret;
-                }
-                // we are not the owner of the lock
-                mutex->isOwner = 0;
-            }
-            else {
-                // this is the case when we are the owner 
-                // of the lock
-                if (strcmp(mutex->id, owner_id) == 0) {
-                    LOG_DEBUG(("got the zoo lock owner - %s", mutex->id));
-                    mutex->isOwner = 1;
-                    if (mutex->completion != NULL) {
-                        mutex->completion(0, mutex->cbdata);
-                    }
-                    return ZOK;
-                }
-            }
-            free_String_vector(vector);
-            return ZOK;
-        }
-    } while (mutex->id == NULL);
-    return ZOK;
-}
-
-ZOOAPI int zkr_lock_lock(zkr_lock_mutex_t *mutex) {
-    pthread_mutex_lock(&(mutex->pmutex));
-    zhandle_t *zh = mutex->zh;
-    char *path = mutex->path;
-    struct Stat stat;
-    int exists = zoo_exists(zh, path, 0, &stat);
-    int count = 0;
-    struct timespec ts;
-    ts.tv_sec = 0;
-    ts.tv_nsec = (.5)*1000000;
-    // retry to see if the path exists and 
-    // and create if the path does not exist
-    while ((exists == ZCONNECTIONLOSS || exists == ZNONODE) && (count <4)) {
-        count++;
-        // retry the operation
-        if (exists == ZCONNECTIONLOSS) 
-            exists = zoo_exists(zh, path, 0, &stat);
-        else if (exists == ZNONODE) 
-            exists = zoo_create(zh, path, NULL, 0, mutex->acl, 0, NULL, 0);
-        nanosleep(&ts, 0);
-          
-    }
-
-    // need to check if we cannot still access the server 
-    int check_retry = ZCONNECTIONLOSS;
-    count = 0;
-    while (check_retry != ZOK && count <4) {
-        check_retry = zkr_lock_operation(mutex, &ts);
-        if (check_retry != ZOK) {
-            nanosleep(&ts, 0);
-            count++;
-        }
-    }
-    pthread_mutex_unlock(&(mutex->pmutex));
-    return zkr_lock_isowner(mutex);
-}
-
-                    
-ZOOAPI char* zkr_lock_getpath(zkr_lock_mutex_t *mutex) {
-    return mutex->path;
-}
-
-ZOOAPI int zkr_lock_isowner(zkr_lock_mutex_t *mutex) {
-    return (mutex->id != NULL && mutex->ownerid != NULL 
-            && (strcmp(mutex->id, mutex->ownerid) == 0));
-}
-
-ZOOAPI char* zkr_lock_getid(zkr_lock_mutex_t *mutex) {
-    return mutex->ownerid;
-}
-
-ZOOAPI int zkr_lock_destroy(zkr_lock_mutex_t* mutex) {
-    if (mutex->id) 
-        free(mutex->id);
-    mutex->path = NULL;
-    mutex->acl = NULL;
-    mutex->completion = NULL;
-    pthread_mutex_destroy(&(mutex->pmutex));
-    mutex->isOwner = 0;
-    if (mutex->ownerid) 
-        free(mutex->ownerid);
-    return 0;
-}
-

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/src/c/tests/TestClient.cc
----------------------------------------------------------------------
diff --git a/src/recipes/lock/src/c/tests/TestClient.cc b/src/recipes/lock/src/c/tests/TestClient.cc
deleted file mode 100644
index 2cc56cf..0000000
--- a/src/recipes/lock/src/c/tests/TestClient.cc
+++ /dev/null
@@ -1,201 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <cppunit/extensions/HelperMacros.h>
-
-#include <stdlib.h>
-#include <sys/select.h>
-#include <cppunit/TestAssert.h>
-
-
-using namespace std;
-
-#include <cstring>
-#include <list>
-
-#include <zookeeper.h>
-#include <zoo_lock.h>
-
-static void yield(zhandle_t *zh, int i)
-{
-    sleep(i);
-}
-
-typedef struct evt {
-    string path;
-    int type;
-} evt_t;
-
-typedef struct watchCtx {
-private:
-    list<evt_t> events;
-public:
-    bool connected;
-    zhandle_t *zh;
-    
-    watchCtx() {
-        connected = false;
-        zh = 0;
-    }
-    ~watchCtx() {
-        if (zh) {
-            zookeeper_close(zh);
-            zh = 0;
-        }
-    }
-
-    evt_t getEvent() {
-        evt_t evt;
-        evt = events.front();
-        events.pop_front();
-        return evt;
-    }
-
-    int countEvents() {
-        int count;
-        count = events.size();
-        return count;
-    }
-
-    void putEvent(evt_t evt) {
-        events.push_back(evt);
-    }
-
-    bool waitForConnected(zhandle_t *zh) {
-        time_t expires = time(0) + 10;
-        while(!connected && time(0) < expires) {
-            yield(zh, 1);
-        }
-        return connected;
-    }
-    bool waitForDisconnected(zhandle_t *zh) {
-        time_t expires = time(0) + 15;
-        while(connected && time(0) < expires) {
-            yield(zh, 1);
-        }
-        return !connected;
-    }
-} watchctx_t; 
-
-class Zookeeper_locktest : public CPPUNIT_NS::TestFixture
-{
-    CPPUNIT_TEST_SUITE(Zookeeper_locktest);
-    CPPUNIT_TEST(testlock);
-    CPPUNIT_TEST_SUITE_END();
-
-    static void watcher(zhandle_t *, int type, int state, const char *path,void*v){
-        watchctx_t *ctx = (watchctx_t*)v;
-
-        if (state == ZOO_CONNECTED_STATE) {
-            ctx->connected = true;
-        } else {
-            ctx->connected = false;
-        }
-        if (type != ZOO_SESSION_EVENT) {
-            evt_t evt;
-            evt.path = path;
-            evt.type = type;
-            ctx->putEvent(evt);
-        }
-    }
-
-    static const char hostPorts[];
-
-    const char *getHostPorts() {
-        return hostPorts;
-    }
-
-    zhandle_t *createClient(watchctx_t *ctx) {
-        zhandle_t *zk = zookeeper_init(hostPorts, watcher, 10000, 0,
-                                       ctx, 0);
-        ctx->zh = zk;
-        sleep(1);
-        return zk;
-    }
-    
-public:
-
-#define ZKSERVER_CMD "./tests/zkServer.sh"
-
-    void setUp()
-    {
-        char cmd[1024];
-        sprintf(cmd, "%s startClean %s", ZKSERVER_CMD, getHostPorts());
-        CPPUNIT_ASSERT(system(cmd) == 0);
-    }
-    
-
-    void startServer() {
-        char cmd[1024];
-        sprintf(cmd, "%s start %s", ZKSERVER_CMD, getHostPorts());
-        CPPUNIT_ASSERT(system(cmd) == 0);
-    }
-
-    void stopServer() {
-        tearDown();
-    }
-
-    void tearDown()
-    {
-        char cmd[1024];
-        sprintf(cmd, "%s stop %s", ZKSERVER_CMD, getHostPorts());
-        CPPUNIT_ASSERT(system(cmd) == 0);
-    }
-    
-
-    void testlock()
-    {
-        watchctx_t ctx;
-        int rc;
-        struct Stat stat;
-        char buf[1024];
-        int blen;
-        struct String_vector strings;
-        const char *testName;
-        zkr_lock_mutex_t mutexes[3];
-        int count = 3;
-        int i = 0;
-        char* path = "/test-lock";
-        for (i=0; i< 3; i++) {
-            zhandle_t *zh = createClient(&ctx);
-            zkr_lock_init(&mutexes[i], zh, path, &ZOO_OPEN_ACL_UNSAFE);
-            zkr_lock_lock(&mutexes[i]);
-        }
-        sleep(30);
-        zkr_lock_mutex leader = mutexes[0];
-        zkr_lock_mutex mutex;
-        int ret = strcmp(leader.id, leader.ownerid);
-        CPPUNIT_ASSERT(ret == 0);
-        for(i=1; i < count; i++) {
-            mutex = mutexes[i];
-            CPPUNIT_ASSERT(strcmp(mutex.id, mutex.ownerid) != 0);
-        } 
-        zkr_lock_unlock(&leader);
-        sleep(30);
-        zkr_lock_mutex secondleader = mutexes[1];
-        CPPUNIT_ASSERT(strcmp(secondleader.id , secondleader.ownerid) == 0);
-        for (i=2; i<count; i++) {
-            mutex = mutexes[i];
-            CPPUNIT_ASSERT(strcmp(mutex.id, mutex.ownerid) != 0);
-        }
-    }
-
-};
-
-const char Zookeeper_locktest::hostPorts[] = "127.0.0.1:22181";
-CPPUNIT_TEST_SUITE_REGISTRATION(Zookeeper_locktest);

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/src/c/tests/TestDriver.cc
----------------------------------------------------------------------
diff --git a/src/recipes/lock/src/c/tests/TestDriver.cc b/src/recipes/lock/src/c/tests/TestDriver.cc
deleted file mode 100644
index 2b818f4..0000000
--- a/src/recipes/lock/src/c/tests/TestDriver.cc
+++ /dev/null
@@ -1,114 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <string>
-#include <cppunit/TestRunner.h>
-#include <cppunit/CompilerOutputter.h>
-#include <cppunit/TestResult.h>
-#include <cppunit/TestResultCollector.h>
-#include <cppunit/TextTestProgressListener.h>
-#include <cppunit/BriefTestProgressListener.h>
-#include <cppunit/extensions/TestFactoryRegistry.h>
-#include <stdexcept>
-#include <cppunit/Exception.h>
-#include <cppunit/TestFailure.h>
-#include <cppunit/XmlOutputter.h>
-#include <fstream>
-
-#include "Util.h"
-
-using namespace std;
-
-CPPUNIT_NS_BEGIN
-
-class EclipseOutputter: public CompilerOutputter
-{
-public:
-  EclipseOutputter(TestResultCollector *result,ostream &stream):
-        CompilerOutputter(result,stream,"%p:%l: "),stream_(stream)
-    {
-    }
-    virtual void printFailedTestName( TestFailure *failure ){}
-    virtual void printFailureMessage( TestFailure *failure )
-    {
-      stream_<<": ";
-      Message msg = failure->thrownException()->message();
-      stream_<< msg.shortDescription();
-
-      string text;
-      for(int i=0; i<msg.detailCount();i++){
-          text+=msg.detailAt(i);
-          if(i+1!=msg.detailCount())
-              text+=", ";
-      }
-      if(text.length()!=0)
-          stream_ <<" ["<<text<<"]";
-      stream_<<"\n";
-    }
-    ostream& stream_;
-};
-
-CPPUNIT_NS_END
-
-int main( int argc, char* argv[] ) { 
-   // if command line contains "-ide" then this is the post build check
-   // => the output must be in the compiler error format.
-   //bool selfTest = (argc > 1) && (std::string("-ide") == argv[1]);
-   globalTestConfig.addConfigFromCmdLine(argc,argv);
-
-   // Create the event manager and test controller
-   CPPUNIT_NS::TestResult controller;
-   // Add a listener that colllects test result
-   CPPUNIT_NS::TestResultCollector result;
-   controller.addListener( &result );
-   
-   // Add a listener that print dots as tests run.
-   // CPPUNIT_NS::TextTestProgressListener progress;
-   CPPUNIT_NS::BriefTestProgressListener progress;
-   controller.addListener( &progress );
- 
-   CPPUNIT_NS::TestRunner runner;
-   runner.addTest( CPPUNIT_NS::TestFactoryRegistry::getRegistry().makeTest() );
- 
-   try
-   {
-     cout << "Running "  <<  globalTestConfig.getTestName();
-     runner.run( controller, globalTestConfig.getTestName());
-     cout<<endl;
-
-     // Print test in a compiler compatible format.
-     CPPUNIT_NS::EclipseOutputter outputter( &result,cout);
-     outputter.write(); 
-
- // Uncomment this for XML output
-#ifdef ENABLE_XML_OUTPUT
-     std::ofstream file( "tests.xml" );
-     CPPUNIT_NS::XmlOutputter xml( &result, file );
-     xml.setStyleSheet( "report.xsl" );
-     xml.write();
-     file.close();
-#endif
-   }
-   catch ( std::invalid_argument &e )  // Test path not resolved
-   {
-     cout<<"\nERROR: "<<e.what()<<endl;
-     return 0;
-   }
-
-   return result.wasSuccessful() ? 0 : 1;
- }

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/src/c/tests/Util.cc
----------------------------------------------------------------------
diff --git a/src/recipes/lock/src/c/tests/Util.cc b/src/recipes/lock/src/c/tests/Util.cc
deleted file mode 100644
index 26a9a09..0000000
--- a/src/recipes/lock/src/c/tests/Util.cc
+++ /dev/null
@@ -1,30 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "Util.h"
-
-const std::string EMPTY_STRING;
-
-TestConfig globalTestConfig;
-
-void millisleep(int ms){
-    timespec ts;
-    ts.tv_sec=ms/1000;
-    ts.tv_nsec=(ms%1000)*1000000; // to nanoseconds
-    nanosleep(&ts,0);
-}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/src/c/tests/Util.h
----------------------------------------------------------------------
diff --git a/src/recipes/lock/src/c/tests/Util.h b/src/recipes/lock/src/c/tests/Util.h
deleted file mode 100644
index 95f5420..0000000
--- a/src/recipes/lock/src/c/tests/Util.h
+++ /dev/null
@@ -1,134 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef UTIL_H_
-#define UTIL_H_
-
-#include <map>
-#include <vector>
-#include <string>
-
-// number of elements in array
-#define COUNTOF(array) sizeof(array)/sizeof(array[0])
-
-#define DECLARE_WRAPPER(ret,sym,sig) \
-    extern "C" ret __real_##sym sig; \
-    extern "C" ret __wrap_##sym sig
-
-#define CALL_REAL(sym,params) \
-    __real_##sym params
-
-// must include "src/zookeeper_log.h" to be able to use this macro
-#define TEST_TRACE(x) \
-    log_message(3,__LINE__,__func__,format_log_message x)
-
-extern const std::string EMPTY_STRING;
-
-// *****************************************************************************
-// A bit of wizardry to get to the bare type from a reference or a pointer 
-// to the type
-template <class T>
-struct TypeOp {
-    typedef T BareT;
-    typedef T ArgT;
-};
-
-// partial specialization for reference types
-template <class T>
-struct TypeOp<T&>{
-    typedef T& ArgT;
-    typedef typename TypeOp<T>::BareT BareT;
-};
-
-// partial specialization for pointers
-template <class T>
-struct TypeOp<T*>{
-    typedef T* ArgT;
-    typedef typename TypeOp<T>::BareT BareT;
-};
-
-// *****************************************************************************
-// Container utilities
-
-template <class K, class V>
-void putValue(std::map<K,V>& map,const K& k, const V& v){
-    typedef std::map<K,V> Map;
-    typename Map::const_iterator it=map.find(k);
-    if(it==map.end())
-        map.insert(typename Map::value_type(k,v));
-    else
-        map[k]=v;
-}
-
-template <class K, class V>
-bool getValue(const std::map<K,V>& map,const K& k,V& v){
-    typedef std::map<K,V> Map;
-    typename Map::const_iterator it=map.find(k);
-    if(it==map.end())
-        return false;
-    v=it->second;
-    return true;
-}
-
-// *****************************************************************************
-// misc utils
-
-// millisecond sleep
-void millisleep(int ms);
-// evaluate given predicate until it returns true or the timeout 
-// (in millis) has expired
-template<class Predicate>
-int ensureCondition(const Predicate& p,int timeout){
-    int elapsed=0;
-    while(!p() && elapsed<timeout){
-        millisleep(2);
-        elapsed+=2;
-    }
-    return elapsed;
-};
-
-// *****************************************************************************
-// test global configuration data 
-class TestConfig{
-    typedef std::vector<std::string> CmdLineOptList;
-public:
-    typedef CmdLineOptList::const_iterator const_iterator;
-    TestConfig(){}
-    ~TestConfig(){}
-    void addConfigFromCmdLine(int argc, char* argv[]){
-        if(argc>=2)
-            testName_=argv[1];
-        for(int i=2; i<argc;++i)
-            cmdOpts_.push_back(argv[i]);
-    }
-    const_iterator getExtraOptBegin() const {return cmdOpts_.begin();}
-    const_iterator getExtraOptEnd() const {return cmdOpts_.end();}
-    size_t getExtraOptCount() const {
-        return cmdOpts_.size();
-    }
-    const std::string& getTestName() const {
-        return testName_=="all"?EMPTY_STRING:testName_;
-    }
-private:
-    CmdLineOptList cmdOpts_;
-    std::string testName_;
-};
-
-extern TestConfig globalTestConfig;
-
-#endif /*UTIL_H_*/

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/src/c/tests/zkServer.sh
----------------------------------------------------------------------
diff --git a/src/recipes/lock/src/c/tests/zkServer.sh b/src/recipes/lock/src/c/tests/zkServer.sh
deleted file mode 100755
index a22fd30..0000000
--- a/src/recipes/lock/src/c/tests/zkServer.sh
+++ /dev/null
@@ -1,75 +0,0 @@
-#!/bin/bash
-#
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-
-if [ "x$1" == "x" ]
-then
-	echo "USAGE: $0 startClean|start|stop hostPorts"
-	exit 2
-fi
-
-if [ "x$1" == "xstartClean" ]
-then
-	rm -rf /tmp/zkdata
-fi
-
-# Make sure nothing is left over from before
-if [ -r "/tmp/zk.pid" ]
-then
-pid=`cat /tmp/zk.pid`
-kill -9 $pid
-rm -f /tmp/zk.pid
-fi
-
-base_dir="../../../../.."
-
-CLASSPATH="$CLASSPATH:${base_dir}/build/classes"
-CLASSPATH="$CLASSPATH:${base_dir}/conf"
-
-for f in "${base_dir}"/zookeeper-*.jar
-do
-    CLASSPATH="$CLASSPATH:$f"
-done
-
-for i in "${base_dir}"/build/lib/*.jar
-do
-    CLASSPATH="$CLASSPATH:$i"
-done
-
-for i in "${base_dir}"/src/java/lib/*.jar
-do
-    CLASSPATH="$CLASSPATH:$i"
-done
-
-CLASSPATH="$CLASSPATH:${CLOVER_HOME}/lib/clover.jar"
-
-case $1 in
-start|startClean)
-	mkdir -p /tmp/zkdata
-	java -cp $CLASSPATH org.apache.zookeeper.server.ZooKeeperServerMain 22181 /tmp/zkdata &> /tmp/zk.log &
-        echo $! > /tmp/zk.pid
-        sleep 5
-	;;
-stop)
-	# Already killed above
-	;;
-*)
-	echo "Unknown command " + $1
-	exit 2
-esac
-

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/src/java/org/apache/zookeeper/recipes/lock/LockListener.java
----------------------------------------------------------------------
diff --git a/src/recipes/lock/src/java/org/apache/zookeeper/recipes/lock/LockListener.java b/src/recipes/lock/src/java/org/apache/zookeeper/recipes/lock/LockListener.java
deleted file mode 100644
index 1c21ad6..0000000
--- a/src/recipes/lock/src/java/org/apache/zookeeper/recipes/lock/LockListener.java
+++ /dev/null
@@ -1,38 +0,0 @@
-/**
- *
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.zookeeper.recipes.lock;
-
-/**
- * This class has two methods which are call
- * back methods when a lock is acquired and 
- * when the lock is released.
- *
- */
-public interface LockListener {
-    /**
-     * call back called when the lock 
-     * is acquired
-     */
-    public void lockAcquired();
-    
-    /**
-     * call back called when the lock is 
-     * released.
-     */
-    public void lockReleased();
-}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ProtocolSupport.java
----------------------------------------------------------------------
diff --git a/src/recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ProtocolSupport.java b/src/recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ProtocolSupport.java
deleted file mode 100644
index 4efdb85..0000000
--- a/src/recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ProtocolSupport.java
+++ /dev/null
@@ -1,193 +0,0 @@
-/**
- *
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.zookeeper.recipes.lock;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.apache.zookeeper.CreateMode;
-import org.apache.zookeeper.KeeperException;
-import org.apache.zookeeper.ZooDefs;
-import org.apache.zookeeper.ZooKeeper;
-import org.apache.zookeeper.data.ACL;
-import org.apache.zookeeper.data.Stat;
-import org.apache.zookeeper.recipes.lock.ZooKeeperOperation;
-
-import java.util.List;
-import java.util.concurrent.atomic.AtomicBoolean;
-
-/**
- * A base class for protocol implementations which provides a number of higher 
- * level helper methods for working with ZooKeeper along with retrying synchronous
- *  operations if the connection to ZooKeeper closes such as 
- *  {@link #retryOperation(ZooKeeperOperation)}
- *
- */
-class ProtocolSupport {
-    private static final Logger LOG = LoggerFactory.getLogger(ProtocolSupport.class);
-
-    protected final ZooKeeper zookeeper;
-    private AtomicBoolean closed = new AtomicBoolean(false);
-    private long retryDelay = 500L;
-    private int retryCount = 10;
-    private List<ACL> acl = ZooDefs.Ids.OPEN_ACL_UNSAFE;
-
-    public ProtocolSupport(ZooKeeper zookeeper) {
-        this.zookeeper = zookeeper;
-    }
-
-    /**
-     * Closes this strategy and releases any ZooKeeper resources; but keeps the
-     *  ZooKeeper instance open
-     */
-    public void close() {
-        if (closed.compareAndSet(false, true)) {
-            doClose();
-        }
-    }
-    
-    /**
-     * return zookeeper client instance
-     * @return zookeeper client instance
-     */
-    public ZooKeeper getZookeeper() {
-        return zookeeper;
-    }
-
-    /**
-     * return the acl its using
-     * @return the acl.
-     */
-    public List<ACL> getAcl() {
-        return acl;
-    }
-
-    /**
-     * set the acl 
-     * @param acl the acl to set to
-     */
-    public void setAcl(List<ACL> acl) {
-        this.acl = acl;
-    }
-
-    /**
-     * get the retry delay in milliseconds
-     * @return the retry delay
-     */
-    public long getRetryDelay() {
-        return retryDelay;
-    }
-
-    /**
-     * Sets the time waited between retry delays
-     * @param retryDelay the retry delay
-     */
-    public void setRetryDelay(long retryDelay) {
-        this.retryDelay = retryDelay;
-    }
-
-    /**
-     * Allow derived classes to perform 
-     * some custom closing operations to release resources
-     */
-    protected void doClose() {
-    }
-
-
-    /**
-     * Perform the given operation, retrying if the connection fails
-     * @return object. it needs to be cast to the callee's expected 
-     * return type.
-     */
-    protected Object retryOperation(ZooKeeperOperation operation) 
-        throws KeeperException, InterruptedException {
-        KeeperException exception = null;
-        for (int i = 0; i < retryCount; i++) {
-            try {
-                return operation.execute();
-            } catch (KeeperException.SessionExpiredException e) {
-                LOG.warn("Session expired for: " + zookeeper + " so reconnecting due to: " + e, e);
-                throw e;
-            } catch (KeeperException.ConnectionLossException e) {
-                if (exception == null) {
-                    exception = e;
-                }
-                LOG.debug("Attempt " + i + " failed with connection loss so " +
-                		"attempting to reconnect: " + e, e);
-                retryDelay(i);
-            }
-        }
-        throw exception;
-    }
-
-    /**
-     * Ensures that the given path exists with no data, the current
-     * ACL and no flags
-     * @param path
-     */
-    protected void ensurePathExists(String path) {
-        ensureExists(path, null, acl, CreateMode.PERSISTENT);
-    }
-
-    /**
-     * Ensures that the given path exists with the given data, ACL and flags
-     * @param path
-     * @param acl
-     * @param flags
-     */
-    protected void ensureExists(final String path, final byte[] data,
-            final List<ACL> acl, final CreateMode flags) {
-        try {
-            retryOperation(new ZooKeeperOperation() {
-                public boolean execute() throws KeeperException, InterruptedException {
-                    Stat stat = zookeeper.exists(path, false);
-                    if (stat != null) {
-                        return true;
-                    }
-                    zookeeper.create(path, data, acl, flags);
-                    return true;
-                }
-            });
-        } catch (KeeperException e) {
-            LOG.warn("Caught: " + e, e);
-        } catch (InterruptedException e) {
-            LOG.warn("Caught: " + e, e);
-        }
-    }
-
-    /**
-     * Returns true if this protocol has been closed
-     * @return true if this protocol is closed
-     */
-    protected boolean isClosed() {
-        return closed.get();
-    }
-
-    /**
-     * Performs a retry delay if this is not the first attempt
-     * @param attemptCount the number of the attempts performed so far
-     */
-    protected void retryDelay(int attemptCount) {
-        if (attemptCount > 0) {
-            try {
-                Thread.sleep(attemptCount * retryDelay);
-            } catch (InterruptedException e) {
-                LOG.debug("Failed to sleep: " + e, e);
-            }
-        }
-    }
-}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/src/java/org/apache/zookeeper/recipes/lock/WriteLock.java
----------------------------------------------------------------------
diff --git a/src/recipes/lock/src/java/org/apache/zookeeper/recipes/lock/WriteLock.java b/src/recipes/lock/src/java/org/apache/zookeeper/recipes/lock/WriteLock.java
deleted file mode 100644
index 5caebee..0000000
--- a/src/recipes/lock/src/java/org/apache/zookeeper/recipes/lock/WriteLock.java
+++ /dev/null
@@ -1,296 +0,0 @@
-/**
- *
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.zookeeper.recipes.lock;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.apache.zookeeper.KeeperException;
-import org.apache.zookeeper.WatchedEvent;
-import org.apache.zookeeper.Watcher;
-import static org.apache.zookeeper.CreateMode.EPHEMERAL_SEQUENTIAL;
-import org.apache.zookeeper.ZooKeeper;
-import org.apache.zookeeper.data.ACL;
-import org.apache.zookeeper.data.Stat;
-
-import java.util.List;
-import java.util.SortedSet;
-import java.util.TreeSet;
-
-/**
- * A <a href="package.html">protocol to implement an exclusive
- *  write lock or to elect a leader</a>. <p/> You invoke {@link #lock()} to 
- *  start the process of grabbing the lock; you may get the lock then or it may be 
- *  some time later. <p/> You can register a listener so that you are invoked 
- *  when you get the lock; otherwise you can ask if you have the lock
- *  by calling {@link #isOwner()}
- *
- */
-public class WriteLock extends ProtocolSupport {
-    private static final Logger LOG = LoggerFactory.getLogger(WriteLock.class);
-
-    private final String dir;
-    private String id;
-    private ZNodeName idName;
-    private String ownerId;
-    private String lastChildId;
-    private byte[] data = {0x12, 0x34};
-    private LockListener callback;
-    private LockZooKeeperOperation zop;
-    
-    /**
-     * zookeeper contructor for writelock
-     * @param zookeeper zookeeper client instance
-     * @param dir the parent path you want to use for locking
-     * @param acls the acls that you want to use for all the paths, 
-     * if null world read/write is used.
-     */
-    public WriteLock(ZooKeeper zookeeper, String dir, List<ACL> acl) {
-        super(zookeeper);
-        this.dir = dir;
-        if (acl != null) {
-            setAcl(acl);
-        }
-        this.zop = new LockZooKeeperOperation();
-    }
-    
-    /**
-     * zookeeper contructor for writelock with callback
-     * @param zookeeper the zookeeper client instance
-     * @param dir the parent path you want to use for locking
-     * @param acl the acls that you want to use for all the paths
-     * @param callback the call back instance
-     */
-    public WriteLock(ZooKeeper zookeeper, String dir, List<ACL> acl, 
-            LockListener callback) {
-        this(zookeeper, dir, acl);
-        this.callback = callback;
-    }
-
-    /**
-     * return the current locklistener
-     * @return the locklistener
-     */
-    public LockListener getLockListener() {
-        return this.callback;
-    }
-    
-    /**
-     * register a different call back listener
-     * @param callback the call back instance
-     */
-    public void setLockListener(LockListener callback) {
-        this.callback = callback;
-    }
-
-    /**
-     * Removes the lock or associated znode if 
-     * you no longer require the lock. this also 
-     * removes your request in the queue for locking
-     * in case you do not already hold the lock.
-     * @throws RuntimeException throws a runtime exception
-     * if it cannot connect to zookeeper.
-     */
-    public synchronized void unlock() throws RuntimeException {
-        
-        if (!isClosed() && id != null) {
-            // we don't need to retry this operation in the case of failure
-            // as ZK will remove ephemeral files and we don't wanna hang
-            // this process when closing if we cannot reconnect to ZK
-            try {
-                
-                ZooKeeperOperation zopdel = new ZooKeeperOperation() {
-                    public boolean execute() throws KeeperException,
-                        InterruptedException {
-                        zookeeper.delete(id, -1);   
-                        return Boolean.TRUE;
-                    }
-                };
-                zopdel.execute();
-            } catch (InterruptedException e) {
-                LOG.warn("Caught: " + e, e);
-                //set that we have been interrupted.
-               Thread.currentThread().interrupt();
-            } catch (KeeperException.NoNodeException e) {
-                // do nothing
-            } catch (KeeperException e) {
-                LOG.warn("Caught: " + e, e);
-                throw (RuntimeException) new RuntimeException(e.getMessage()).
-                    initCause(e);
-            }
-            finally {
-                if (callback != null) {
-                    callback.lockReleased();
-                }
-                id = null;
-            }
-        }
-    }
-    
-    /** 
-     * the watcher called on  
-     * getting watch while watching 
-     * my predecessor
-     */
-    private class LockWatcher implements Watcher {
-        public void process(WatchedEvent event) {
-            // lets either become the leader or watch the new/updated node
-            LOG.debug("Watcher fired on path: " + event.getPath() + " state: " + 
-                    event.getState() + " type " + event.getType());
-            try {
-                lock();
-            } catch (Exception e) {
-                LOG.warn("Failed to acquire lock: " + e, e);
-            }
-        }
-    }
-    
-    /**
-     * a zoookeeper operation that is mainly responsible
-     * for all the magic required for locking.
-     */
-    private  class LockZooKeeperOperation implements ZooKeeperOperation {
-        
-        /** find if we have been created earler if not create our node
-         * 
-         * @param prefix the prefix node
-         * @param zookeeper teh zookeeper client
-         * @param dir the dir paretn
-         * @throws KeeperException
-         * @throws InterruptedException
-         */
-        private void findPrefixInChildren(String prefix, ZooKeeper zookeeper, String dir) 
-            throws KeeperException, InterruptedException {
-            List<String> names = zookeeper.getChildren(dir, false);
-            for (String name : names) {
-                if (name.startsWith(prefix)) {
-                    id = name;
-                    if (LOG.isDebugEnabled()) {
-                        LOG.debug("Found id created last time: " + id);
-                    }
-                    break;
-                }
-            }
-            if (id == null) {
-                id = zookeeper.create(dir + "/" + prefix, data, 
-                        getAcl(), EPHEMERAL_SEQUENTIAL);
-
-                if (LOG.isDebugEnabled()) {
-                    LOG.debug("Created id: " + id);
-                }
-            }
-
-        }
-        
-        /**
-         * the command that is run and retried for actually 
-         * obtaining the lock
-         * @return if the command was successful or not
-         */
-        public boolean execute() throws KeeperException, InterruptedException {
-            do {
-                if (id == null) {
-                    long sessionId = zookeeper.getSessionId();
-                    String prefix = "x-" + sessionId + "-";
-                    // lets try look up the current ID if we failed 
-                    // in the middle of creating the znode
-                    findPrefixInChildren(prefix, zookeeper, dir);
-                    idName = new ZNodeName(id);
-                }
-                if (id != null) {
-                    List<String> names = zookeeper.getChildren(dir, false);
-                    if (names.isEmpty()) {
-                        LOG.warn("No children in: " + dir + " when we've just " +
-                        "created one! Lets recreate it...");
-                        // lets force the recreation of the id
-                        id = null;
-                    } else {
-                        // lets sort them explicitly (though they do seem to come back in order ususally :)
-                        SortedSet<ZNodeName> sortedNames = new TreeSet<ZNodeName>();
-                        for (String name : names) {
-                            sortedNames.add(new ZNodeName(dir + "/" + name));
-                        }
-                        ownerId = sortedNames.first().getName();
-                        SortedSet<ZNodeName> lessThanMe = sortedNames.headSet(idName);
-                        if (!lessThanMe.isEmpty()) {
-                            ZNodeName lastChildName = lessThanMe.last();
-                            lastChildId = lastChildName.getName();
-                            if (LOG.isDebugEnabled()) {
-                                LOG.debug("watching less than me node: " + lastChildId);
-                            }
-                            Stat stat = zookeeper.exists(lastChildId, new LockWatcher());
-                            if (stat != null) {
-                                return Boolean.FALSE;
-                            } else {
-                                LOG.warn("Could not find the" +
-                                		" stats for less than me: " + lastChildName.getName());
-                            }
-                        } else {
-                            if (isOwner()) {
-                                if (callback != null) {
-                                    callback.lockAcquired();
-                                }
-                                return Boolean.TRUE;
-                            }
-                        }
-                    }
-                }
-            }
-            while (id == null);
-            return Boolean.FALSE;
-        }
-    };
-
-    /**
-     * Attempts to acquire the exclusive write lock returning whether or not it was
-     * acquired. Note that the exclusive lock may be acquired some time later after
-     * this method has been invoked due to the current lock owner going away.
-     */
-    public synchronized boolean lock() throws KeeperException, InterruptedException {
-        if (isClosed()) {
-            return false;
-        }
-        ensurePathExists(dir);
-
-        return (Boolean) retryOperation(zop);
-    }
-
-    /**
-     * return the parent dir for lock
-     * @return the parent dir used for locks.
-     */
-    public String getDir() {
-        return dir;
-    }
-
-    /**
-     * Returns true if this node is the owner of the
-     *  lock (or the leader)
-     */
-    public boolean isOwner() {
-        return id != null && ownerId != null && id.equals(ownerId);
-    }
-
-    /**
-     * return the id for this lock
-     * @return the id for this lock
-     */
-    public String getId() {
-       return this.id;
-    }
-}
-

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ZNodeName.java
----------------------------------------------------------------------
diff --git a/src/recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ZNodeName.java b/src/recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ZNodeName.java
deleted file mode 100644
index 2e32e59..0000000
--- a/src/recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ZNodeName.java
+++ /dev/null
@@ -1,112 +0,0 @@
-/**
- *
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.zookeeper.recipes.lock;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * Represents an ephemeral znode name which has an ordered sequence number
- * and can be sorted in order
- *
- */
-class ZNodeName implements Comparable<ZNodeName> {
-    private final String name;
-    private String prefix;
-    private int sequence = -1;
-    private static final Logger LOG = LoggerFactory.getLogger(ZNodeName.class);
-    
-    public ZNodeName(String name) {
-        if (name == null) {
-            throw new NullPointerException("id cannot be null");
-        }
-        this.name = name;
-        this.prefix = name;
-        int idx = name.lastIndexOf('-');
-        if (idx >= 0) {
-            this.prefix = name.substring(0, idx);
-            try {
-                this.sequence = Integer.parseInt(name.substring(idx + 1));
-                // If an exception occurred we misdetected a sequence suffix,
-                // so return -1.
-            } catch (NumberFormatException e) {
-                LOG.info("Number format exception for " + idx, e);
-            } catch (ArrayIndexOutOfBoundsException e) {
-               LOG.info("Array out of bounds for " + idx, e);
-            }
-        }
-    }
-
-    @Override
-    public String toString() {
-        return name.toString();
-    }
-
-    @Override
-    public boolean equals(Object o) {
-        if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
-
-        ZNodeName sequence = (ZNodeName) o;
-
-        if (!name.equals(sequence.name)) return false;
-
-        return true;
-    }
-
-    @Override
-    public int hashCode() {
-        return name.hashCode() + 37;
-    }
-
-    /**
-     * Compare znodes based on their sequence number
-     * @param that other znode to compare to
-     * @return the difference between their sequence numbers: a positive value if this
-     *         znode has a larger sequence number, 0 if they have the same sequence number
-     *         or a negative number if this znode has a lower sequence number
-     */
-    public int compareTo(ZNodeName that) {
-        int answer = this.sequence - that.sequence;
-        if (answer == 0) {
-            return this.prefix.compareTo(that.prefix);
-        }
-        return answer;
-    }
-
-    /**
-     * Returns the name of the znode
-     */
-    public String getName() {
-        return name;
-    }
-
-    /**
-     * Returns the sequence number
-     */
-    public int getZNodeName() {
-        return sequence;
-    }
-
-    /**
-     * Returns the text prefix before the sequence number
-     */
-    public String getPrefix() {
-        return prefix;
-    }
-}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ZooKeeperOperation.java
----------------------------------------------------------------------
diff --git a/src/recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ZooKeeperOperation.java b/src/recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ZooKeeperOperation.java
deleted file mode 100644
index 54317ed..0000000
--- a/src/recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ZooKeeperOperation.java
+++ /dev/null
@@ -1,38 +0,0 @@
-/**
- *
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.zookeeper.recipes.lock;
-
-import org.apache.zookeeper.KeeperException;
-
-/**
- * A callback object which can be used for implementing retry-able operations in the 
- * {@link org.apache.zookeeper.recipes.lock.ProtocolSupport} class
- *
- */
-public interface ZooKeeperOperation {
-    
-    /**
-     * Performs the operation - which may be involved multiple times if the connection
-     * to ZooKeeper closes during this operation
-     *
-     * @return the result of the operation or null
-     * @throws KeeperException
-     * @throws InterruptedException
-     */
-    public boolean execute() throws KeeperException, InterruptedException;
-}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/test/org/apache/zookeeper/recipes/lock/WriteLockTest.java
----------------------------------------------------------------------
diff --git a/src/recipes/lock/test/org/apache/zookeeper/recipes/lock/WriteLockTest.java b/src/recipes/lock/test/org/apache/zookeeper/recipes/lock/WriteLockTest.java
deleted file mode 100644
index 52f9f57..0000000
--- a/src/recipes/lock/test/org/apache/zookeeper/recipes/lock/WriteLockTest.java
+++ /dev/null
@@ -1,156 +0,0 @@
-/**
- *
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.zookeeper.recipes.lock;
-
-import org.apache.zookeeper.ZooKeeper;
-import org.apache.zookeeper.test.ClientBase;
-
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.TimeUnit;
-
-import org.junit.After;
-import org.junit.Assert;
-import org.junit.Test;
-
-/**
- * test for writelock
- */
-public class WriteLockTest extends ClientBase {
-    protected int sessionTimeout = 10 * 1000;
-    protected String dir = "/" + getClass().getName();
-    protected WriteLock[] nodes;
-    protected CountDownLatch latch = new CountDownLatch(1);
-    private boolean restartServer = true;
-    private boolean workAroundClosingLastZNodeFails = true;
-    private boolean killLeader = true;
-
-    @Test
-    public void testRun() throws Exception {
-        runTest(3);
-    }
-
-    class LockCallback implements LockListener {
-        public void lockAcquired() {
-            latch.countDown();
-        }
-
-        public void lockReleased() {
-            
-        }
-        
-    }
-    protected void runTest(int count) throws Exception {
-        nodes = new WriteLock[count];
-        for (int i = 0; i < count; i++) {
-            ZooKeeper keeper = createClient();
-            WriteLock leader = new WriteLock(keeper, dir, null);
-            leader.setLockListener(new LockCallback());
-            nodes[i] = leader;
-
-            leader.lock();
-        }
-
-        // lets wait for any previous leaders to die and one of our new
-        // nodes to become the new leader
-        latch.await(30, TimeUnit.SECONDS);
-
-        WriteLock first = nodes[0];
-        dumpNodes(count);
-
-        // lets assert that the first election is the leader
-        Assert.assertTrue("The first znode should be the leader " + first.getId(), first.isOwner());
-
-        for (int i = 1; i < count; i++) {
-            WriteLock node = nodes[i];
-            Assert.assertFalse("Node should not be the leader " + node.getId(), node.isOwner());
-        }
-
-        if (count > 1) {
-            if (killLeader) {
-            System.out.println("Now killing the leader");
-            // now lets kill the leader
-            latch = new CountDownLatch(1);
-            first.unlock();
-            latch.await(30, TimeUnit.SECONDS);
-            //Thread.sleep(10000);
-            WriteLock second = nodes[1];
-            dumpNodes(count);
-            // lets assert that the first election is the leader
-            Assert.assertTrue("The second znode should be the leader " + second.getId(), second.isOwner());
-
-            for (int i = 2; i < count; i++) {
-                WriteLock node = nodes[i];
-                Assert.assertFalse("Node should not be the leader " + node.getId(), node.isOwner());
-            }
-            }
-
-
-            if (restartServer) {
-                // now lets stop the server
-                System.out.println("Now stopping the server");
-                stopServer();
-                Thread.sleep(10000);
-
-                // TODO lets assert that we are no longer the leader
-                dumpNodes(count);
-
-                System.out.println("Starting the server");
-                startServer();
-                Thread.sleep(10000);
-
-                for (int i = 0; i < count - 1; i++) {
-                    System.out.println("Calling acquire for node: " + i);
-                    nodes[i].lock();
-                }
-                dumpNodes(count);
-                System.out.println("Now closing down...");
-            }
-        }
-    }
-
-    protected void dumpNodes(int count) {
-        for (int i = 0; i < count; i++) {
-            WriteLock node = nodes[i];
-            System.out.println("node: " + i + " id: " + 
-                    node.getId() + " is leader: " + node.isOwner());
-        }
-    }
-
-    @After
-    public void tearDown() throws Exception {
-        if (nodes != null) {
-            for (int i = 0; i < nodes.length; i++) {
-                WriteLock node = nodes[i];
-                if (node != null) {
-                    System.out.println("Closing node: " + i);
-                    node.close();
-                    if (workAroundClosingLastZNodeFails && i == nodes.length - 1) {
-                        System.out.println("Not closing zookeeper: " + i + " due to bug!");
-                    } else {
-                        System.out.println("Closing zookeeper: " + i);
-                        node.getZookeeper().close();
-                        System.out.println("Closed zookeeper: " + i);
-                    }
-                }
-            }
-        }
-        System.out.println("Now lets stop the server");
-        super.tearDown();
-
-    }
-}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/lock/test/org/apache/zookeeper/recipes/lock/ZNodeNameTest.java
----------------------------------------------------------------------
diff --git a/src/recipes/lock/test/org/apache/zookeeper/recipes/lock/ZNodeNameTest.java b/src/recipes/lock/test/org/apache/zookeeper/recipes/lock/ZNodeNameTest.java
deleted file mode 100644
index 773c2ec..0000000
--- a/src/recipes/lock/test/org/apache/zookeeper/recipes/lock/ZNodeNameTest.java
+++ /dev/null
@@ -1,71 +0,0 @@
-/**
- *
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.zookeeper.recipes.lock;
-
-import junit.framework.TestCase;
-
-import java.util.SortedSet;
-import java.util.TreeSet;
-
-import org.junit.Test;
-
-/**
- * test for znodenames
- */
-public class ZNodeNameTest extends TestCase {
-    @Test
-    public void testOrderWithSamePrefix() throws Exception {
-        String[] names = { "x-3", "x-5", "x-11", "x-1" };
-        String[] expected = { "x-1", "x-3", "x-5", "x-11" };
-        assertOrderedNodeNames(names, expected);
-    }
-    @Test
-    public void testOrderWithDifferentPrefixes() throws Exception {
-        String[] names = { "r-3", "r-2", "r-1", "w-2", "w-1" };
-        String[] expected = { "r-1", "w-1", "r-2", "w-2", "r-3" };
-        assertOrderedNodeNames(names, expected);
-    }
-    @Test
-    public void testOrderWithDifferentPrefixIncludingSessionId() throws Exception {
-        String[] names = { "x-242681582799028564-0000000002", "x-170623981976748329-0000000003", "x-98566387950223723-0000000001" };
-        String[] expected = { "x-98566387950223723-0000000001", "x-242681582799028564-0000000002", "x-170623981976748329-0000000003" };
-        assertOrderedNodeNames(names, expected);
-    }
-    @Test
-    public void testOrderWithExtraPrefixes() throws Exception {
-        String[] names = { "r-1-3-2", "r-2-2-1", "r-3-1-3" };
-        String[] expected = { "r-2-2-1", "r-1-3-2", "r-3-1-3" };
-        assertOrderedNodeNames(names, expected);
-    }
-
-    protected void assertOrderedNodeNames(String[] names, String[] expected) {
-        int size = names.length;
-        SortedSet<ZNodeName> nodeNames = new TreeSet<ZNodeName>();
-        for (String name : names) {
-            nodeNames.add(new ZNodeName(name));
-        }
-        assertEquals("The SortedSet does not have the expected size!", nodeNames.size(), expected.length);
-
-        int index = 0;
-        for (ZNodeName nodeName : nodeNames) {
-            String name = nodeName.getName();
-            assertEquals("Node " + index, expected[index++], name);
-        }
-    }
-
-}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/queue/README.txt
----------------------------------------------------------------------
diff --git a/src/recipes/queue/README.txt b/src/recipes/queue/README.txt
deleted file mode 100644
index d59a3c3..0000000
--- a/src/recipes/queue/README.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-<!--
-   Licensed to the Apache Software Foundation (ASF) under one or more
-   contributor license agreements.  See the NOTICE file distributed with
-   this work for additional information regarding copyright ownership.
-   The ASF licenses this file to You under the Apache License, Version 2.0
-   (the "License"); you may not use this file except in compliance with
-   the License.  You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
--->
-
-1) This queue interface recipe implements the queue recipe
-mentioned in ../../../docs/recipes.[html,pdf].
-A more detailed explanation is at http://www.cloudera.com/blog/2009/05/28/building-a-distributed-concurrent-queue-with-apache-zookeeper/
-
-2) This recipe does not handle KeeperException.ConnectionLossException or ZCONNECTIONLOSS. It will only work correctly once ZOOKEEPER-22 https://issues.apache.org/jira/browse/ZOOKEEPER-22 is resolved.
-
-3) To compile the queue java recipe you can just run ant jar from 
-this directory. 
-Please report any bugs on the jira 
-
-http://issues.apache.org/jira/browse/ZOOKEEPER
-
-  

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/queue/build.xml
----------------------------------------------------------------------
diff --git a/src/recipes/queue/build.xml b/src/recipes/queue/build.xml
deleted file mode 100644
index 0f3505a..0000000
--- a/src/recipes/queue/build.xml
+++ /dev/null
@@ -1,128 +0,0 @@
-<!--
-   Licensed to the Apache Software Foundation (ASF) under one or more
-   contributor license agreements.  See the NOTICE file distributed with
-   this work for additional information regarding copyright ownership.
-   The ASF licenses this file to You under the Apache License, Version 2.0
-   (the "License"); you may not use this file except in compliance with
-   the License.  You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
--->
-
-<project name="queue" default="jar">
-  <import file="../build-recipes.xml"/>
-    <property name="test.main.classes" value="${zk.root}/build/test/classes"/>
-    <property name="test.build.dir" value="${build.test}" />
-    <property name="test.src.dir" value="test"/>
-    <property name="test.log.dir" value="${test.build.dir}/logs" />
-    <property name="test.data.dir" value="${test.build.dir}/data" />
-    <property name="test.data.upgrade.dir" value="${test.data.dir}/upgrade" />
-    <property name="test.tmp.dir" value="${test.build.dir}/tmp" />
-    <property name="test.output" value="no" />
-    <property name="test.timeout" value="900000" />
-    <property name="test.junit.output.format" value="plain" />
-    <property name="test.junit.fork.mode" value="perTest" />
-    <property name="test.junit.printsummary" value="yes" />
-    <property name="test.junit.haltonfailure" value="no" />
-    <property name="test.junit.maxmem" value="512m" />
-
-  <target name="setjarname">
-    <property name="jarname"
-              value="${build.dir}/zookeeper-${version}-recipes-${name}.jar"/>
-  </target>
-
-  <!-- Override jar target to specify main class -->
-  <target name="jar" depends="checkMainCompiled, setjarname, compile">
-    <echo message="recipes: ${name}"/>
-
-    <jar jarfile="${jarname}">
-      <fileset file="${zk.root}/LICENSE.txt" />
-      <fileset dir="${build.classes}"/>
-      <fileset dir="${build.test}"/>
-    </jar>
-  </target>
-
-	<target name="test" depends="compile-test,test-init,test-category,junit.run" />
-
-	<target name="compile-test" depends="compile">
-  		<property name="target.jdk" value="${ant.java.version}" />	
-		<property name="src.test.local" location="${basedir}/test" />
-		<mkdir dir="${build.test}"/>
-		<javac srcdir="${src.test.local}" 
-			destdir="${build.test}" 
-			target="${target.jdk}" 
-			debug="on" >
-			<classpath refid="classpath" />
-                        <classpath>
-                        <pathelement path="${test.main.classes}"/>
-                        </classpath>
-		</javac>
-	</target>
-	
-    <target name="test-init" depends="jar,compile-test">
-        <delete dir="${test.log.dir}" />
-        <delete dir="${test.tmp.dir}" />
-        <delete dir="${test.data.dir}" />
-        <mkdir dir="${test.log.dir}" />
-        <mkdir dir="${test.tmp.dir}" />
-        <mkdir dir="${test.data.dir}" />
-    </target>
-
-	<target name="test-category">
-         <property name="test.category" value=""/>
-    </target>
-
-	<target name="junit.run">
-		<echo message="${test.src.dir}" />
-        <junit showoutput="${test.output}"
-               printsummary="${test.junit.printsummary}"
-               haltonfailure="${test.junit.haltonfailure}"
-               fork="yes"
-               forkmode="${test.junit.fork.mode}"
-               maxmemory="${test.junit.maxmem}"
-               dir="${basedir}" timeout="${test.timeout}"
-               errorProperty="tests.failed" failureProperty="tests.failed">
-          <sysproperty key="build.test.dir" value="${test.tmp.dir}" />
-          <sysproperty key="test.data.dir" value="${test.data.dir}" />
-          <sysproperty key="log4j.configuration"
-                    value="file:${basedir}/conf/log4j.properties" />
-          <classpath refid="classpath"/>
-          <classpath>
-             <pathelement path="${build.test}" />
-             <pathelement path="${test.main.classes}"/>
-          </classpath>
-          <formatter type="${test.junit.output.format}" />
-          <batchtest todir="${test.log.dir}" unless="testcase">
-              <fileset dir="${test.src.dir}"
-                     includes="**/*${test.category}Test.java"/>
-          </batchtest>
-          <batchtest todir="${test.log.dir}" if="testcase">
-              <fileset dir="${test.src.dir}" includes="**/${testcase}.java"/>
-          </batchtest>
-       </junit>
-            <fail if="tests.failed">Tests failed!</fail>
-    </target>
-
-  <target name="package" depends="jar, zookeeperbuildrecipes.package"
-          unless="skip.recipes">
-
-    <copy file="${basedir}/build.xml" todir="${dist.dir}${package.share}/recipes/${name}"/>
-
-    <mkdir dir="${dist.dir}${package.share}/recipes/${name}/test"/>
-    <copy todir="${dist.dir}${package.share}/recipes/${name}/test">
-      <fileset dir="${basedir}/test"/>
-    </copy>
-    <mkdir dir="${dist.dir}${package.share}/recipes/${name}/src"/>
-    <copy todir="${dist.dir}${package.share}/recipes/${name}/src">
-      <fileset dir="${basedir}/src"/>
-    </copy>
-  </target>
-
-</project>
-

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/queue/src/c/INSTALL
----------------------------------------------------------------------
diff --git a/src/recipes/queue/src/c/INSTALL b/src/recipes/queue/src/c/INSTALL
deleted file mode 100644
index 5458714..0000000
--- a/src/recipes/queue/src/c/INSTALL
+++ /dev/null
@@ -1,234 +0,0 @@
-Installation Instructions
-*************************
-
-Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005,
-2006 Free Software Foundation, Inc.
-
-This file is free documentation; the Free Software Foundation gives
-unlimited permission to copy, distribute and modify it.
-
-Basic Installation
-==================
-
-Briefly, the shell commands `./configure; make; make install' should
-configure, build, and install this package.  The following
-more-detailed instructions are generic; see the `README' file for
-instructions specific to this package.
-
-   The `configure' shell script attempts to guess correct values for
-various system-dependent variables used during compilation.  It uses
-those values to create a `Makefile' in each directory of the package.
-It may also create one or more `.h' files containing system-dependent
-definitions.  Finally, it creates a shell script `config.status' that
-you can run in the future to recreate the current configuration, and a
-file `config.log' containing compiler output (useful mainly for
-debugging `configure').
-
-   It can also use an optional file (typically called `config.cache'
-and enabled with `--cache-file=config.cache' or simply `-C') that saves
-the results of its tests to speed up reconfiguring.  Caching is
-disabled by default to prevent problems with accidental use of stale
-cache files.
-
-   If you need to do unusual things to compile the package, please try
-to figure out how `configure' could check whether to do them, and mail
-diffs or instructions to the address given in the `README' so they can
-be considered for the next release.  If you are using the cache, and at
-some point `config.cache' contains results you don't want to keep, you
-may remove or edit it.
-
-   The file `configure.ac' (or `configure.in') is used to create
-`configure' by a program called `autoconf'.  You need `configure.ac' if
-you want to change it or regenerate `configure' using a newer version
-of `autoconf'.
-
-The simplest way to compile this package is:
-
-  1. `cd' to the directory containing the package's source code and type
-     `./configure' to configure the package for your system.
-
-     Running `configure' might take a while.  While running, it prints
-     some messages telling which features it is checking for.
-
-  2. Type `make' to compile the package.
-
-  3. Optionally, type `make check' to run any self-tests that come with
-     the package.
-
-  4. Type `make install' to install the programs and any data files and
-     documentation.
-
-  5. You can remove the program binaries and object files from the
-     source code directory by typing `make clean'.  To also remove the
-     files that `configure' created (so you can compile the package for
-     a different kind of computer), type `make distclean'.  There is
-     also a `make maintainer-clean' target, but that is intended mainly
-     for the package's developers.  If you use it, you may have to get
-     all sorts of other programs in order to regenerate files that came
-     with the distribution.
-
-Compilers and Options
-=====================
-
-Some systems require unusual options for compilation or linking that the
-`configure' script does not know about.  Run `./configure --help' for
-details on some of the pertinent environment variables.
-
-   You can give `configure' initial values for configuration parameters
-by setting variables in the command line or in the environment.  Here
-is an example:
-
-     ./configure CC=c99 CFLAGS=-g LIBS=-lposix
-
-   *Note Defining Variables::, for more details.
-
-Compiling For Multiple Architectures
-====================================
-
-You can compile the package for more than one kind of computer at the
-same time, by placing the object files for each architecture in their
-own directory.  To do this, you can use GNU `make'.  `cd' to the
-directory where you want the object files and executables to go and run
-the `configure' script.  `configure' automatically checks for the
-source code in the directory that `configure' is in and in `..'.
-
-   With a non-GNU `make', it is safer to compile the package for one
-architecture at a time in the source code directory.  After you have
-installed the package for one architecture, use `make distclean' before
-reconfiguring for another architecture.
-
-Installation Names
-==================
-
-By default, `make install' installs the package's commands under
-`/usr/local/bin', include files under `/usr/local/include', etc.  You
-can specify an installation prefix other than `/usr/local' by giving
-`configure' the option `--prefix=PREFIX'.
-
-   You can specify separate installation prefixes for
-architecture-specific files and architecture-independent files.  If you
-pass the option `--exec-prefix=PREFIX' to `configure', the package uses
-PREFIX as the prefix for installing programs and libraries.
-Documentation and other data files still use the regular prefix.
-
-   In addition, if you use an unusual directory layout you can give
-options like `--bindir=DIR' to specify different values for particular
-kinds of files.  Run `configure --help' for a list of the directories
-you can set and what kinds of files go in them.
-
-   If the package supports it, you can cause programs to be installed
-with an extra prefix or suffix on their names by giving `configure' the
-option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
-
-Optional Features
-=================
-
-Some packages pay attention to `--enable-FEATURE' options to
-`configure', where FEATURE indicates an optional part of the package.
-They may also pay attention to `--with-PACKAGE' options, where PACKAGE
-is something like `gnu-as' or `x' (for the X Window System).  The
-`README' should mention any `--enable-' and `--with-' options that the
-package recognizes.
-
-   For packages that use the X Window System, `configure' can usually
-find the X include and library files automatically, but if it doesn't,
-you can use the `configure' options `--x-includes=DIR' and
-`--x-libraries=DIR' to specify their locations.
-
-Specifying the System Type
-==========================
-
-There may be some features `configure' cannot figure out automatically,
-but needs to determine by the type of machine the package will run on.
-Usually, assuming the package is built to be run on the _same_
-architectures, `configure' can figure that out, but if it prints a
-message saying it cannot guess the machine type, give it the
-`--build=TYPE' option.  TYPE can either be a short name for the system
-type, such as `sun4', or a canonical name which has the form:
-
-     CPU-COMPANY-SYSTEM
-
-where SYSTEM can have one of these forms:
-
-     OS KERNEL-OS
-
-   See the file `config.sub' for the possible values of each field.  If
-`config.sub' isn't included in this package, then this package doesn't
-need to know the machine type.
-
-   If you are _building_ compiler tools for cross-compiling, you should
-use the option `--target=TYPE' to select the type of system they will
-produce code for.
-
-   If you want to _use_ a cross compiler, that generates code for a
-platform different from the build platform, you should specify the
-"host" platform (i.e., that on which the generated programs will
-eventually be run) with `--host=TYPE'.
-
-Sharing Defaults
-================
-
-If you want to set default values for `configure' scripts to share, you
-can create a site shell script called `config.site' that gives default
-values for variables like `CC', `cache_file', and `prefix'.
-`configure' looks for `PREFIX/share/config.site' if it exists, then
-`PREFIX/etc/config.site' if it exists.  Or, you can set the
-`CONFIG_SITE' environment variable to the location of the site script.
-A warning: not all `configure' scripts look for a site script.
-
-Defining Variables
-==================
-
-Variables not defined in a site shell script can be set in the
-environment passed to `configure'.  However, some packages may run
-configure again during the build, and the customized values of these
-variables may be lost.  In order to avoid this problem, you should set
-them in the `configure' command line, using `VAR=value'.  For example:
-
-     ./configure CC=/usr/local2/bin/gcc
-
-causes the specified `gcc' to be used as the C compiler (unless it is
-overridden in the site shell script).
-
-Unfortunately, this technique does not work for `CONFIG_SHELL' due to
-an Autoconf bug.  Until the bug is fixed you can use this workaround:
-
-     CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash
-
-`configure' Invocation
-======================
-
-`configure' recognizes the following options to control how it operates.
-
-`--help'
-`-h'
-     Print a summary of the options to `configure', and exit.
-
-`--version'
-`-V'
-     Print the version of Autoconf used to generate the `configure'
-     script, and exit.
-
-`--cache-file=FILE'
-     Enable the cache: use and save the results of the tests in FILE,
-     traditionally `config.cache'.  FILE defaults to `/dev/null' to
-     disable caching.
-
-`--config-cache'
-`-C'
-     Alias for `--cache-file=config.cache'.
-
-`--quiet'
-`--silent'
-`-q'
-     Do not print messages saying which checks are being made.  To
-     suppress all normal output, redirect it to `/dev/null' (any error
-     messages will still be shown).
-
-`--srcdir=DIR'
-     Look for the package's source code in directory DIR.  Usually
-     `configure' can determine that directory automatically.
-
-`configure' also accepts some other, not widely useful, options.  Run
-`configure --help' for more details.
-


[02/10] zookeeper git commit: ZOOKEEPER-3033: branch-3.4 - MAVEN MIGRATION - Step 1.2 - zk-recipes

Posted by an...@apache.org.
http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/queue/src/c/c-doc.Doxyfile
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/queue/src/c/c-doc.Doxyfile b/zookeeper-recipes/queue/src/c/c-doc.Doxyfile
new file mode 100644
index 0000000..32e09a1
--- /dev/null
+++ b/zookeeper-recipes/queue/src/c/c-doc.Doxyfile
@@ -0,0 +1,1252 @@
+# Doxyfile 1.4.7
+
+# This file describes the settings to be used by the documentation system
+# doxygen (www.doxygen.org) for a project
+#
+# All text after a hash (#) is considered a comment and will be ignored
+# The format is:
+#       TAG = value [value, ...]
+# For lists items can also be appended using:
+#       TAG += value [value, ...]
+# Values that contain spaces should be placed between quotes (" ")
+
+#---------------------------------------------------------------------------
+# Project related configuration options
+#---------------------------------------------------------------------------
+
+# The PROJECT_NAME tag is a single word (or a sequence of words surrounded 
+# by quotes) that should identify the project.
+
+PROJECT_NAME = $(PROJECT)-$(VERSION)
+
+# The PROJECT_NUMBER tag can be used to enter a project or revision number. 
+# This could be handy for archiving the generated documentation or 
+# if some version control system is used.
+
+PROJECT_NUMBER = 
+
+# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) 
+# base path where the generated documentation will be put. 
+# If a relative path is entered, it will be relative to the location 
+# where doxygen was started. If left blank the current directory will be used.
+
+OUTPUT_DIRECTORY = $(DOCDIR)
+
+# If the CREATE_SUBDIRS tag is set to YES, then doxygen will create 
+# 4096 sub-directories (in 2 levels) under the output directory of each output 
+# format and will distribute the generated files over these directories. 
+# Enabling this option can be useful when feeding doxygen a huge amount of 
+# source files, where putting all generated files in the same directory would 
+# otherwise cause performance problems for the file system.
+
+CREATE_SUBDIRS = NO
+
+# The OUTPUT_LANGUAGE tag is used to specify the language in which all 
+# documentation generated by doxygen is written. Doxygen will use this 
+# information to generate all constant output in the proper language. 
+# The default language is English, other supported languages are: 
+# Brazilian, Catalan, Chinese, Chinese-Traditional, Croatian, Czech, Danish, 
+# Dutch, Finnish, French, German, Greek, Hungarian, Italian, Japanese, 
+# Japanese-en (Japanese with English messages), Korean, Korean-en, Norwegian, 
+# Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Slovene, Spanish, 
+# Swedish, and Ukrainian.
+
+OUTPUT_LANGUAGE = English
+
+# This tag can be used to specify the encoding used in the generated output. 
+# The encoding is not always determined by the language that is chosen, 
+# but also whether or not the output is meant for Windows or non-Windows users. 
+# In case there is a difference, setting the USE_WINDOWS_ENCODING tag to YES 
+# forces the Windows encoding (this is the default for the Windows binary), 
+# whereas setting the tag to NO uses a Unix-style encoding (the default for 
+# all platforms other than Windows).
+
+USE_WINDOWS_ENCODING = NO
+
+# If the BRIEF_MEMBER_DESC tag is set to YES (the default) Doxygen will 
+# include brief member descriptions after the members that are listed in 
+# the file and class documentation (similar to JavaDoc). 
+# Set to NO to disable this.
+
+BRIEF_MEMBER_DESC = YES
+
+# If the REPEAT_BRIEF tag is set to YES (the default) Doxygen will prepend 
+# the brief description of a member or function before the detailed description. 
+# Note: if both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the 
+# brief descriptions will be completely suppressed.
+
+REPEAT_BRIEF = YES
+
+# This tag implements a quasi-intelligent brief description abbreviator 
+# that is used to form the text in various listings. Each string 
+# in this list, if found as the leading text of the brief description, will be 
+# stripped from the text and the result after processing the whole list, is 
+# used as the annotated text. Otherwise, the brief description is used as-is. 
+# If left blank, the following values are used ("$name" is automatically 
+# replaced with the name of the entity): "The $name class" "The $name widget" 
+# "The $name file" "is" "provides" "specifies" "contains" 
+# "represents" "a" "an" "the"
+
+ABBREVIATE_BRIEF = 
+
+# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then 
+# Doxygen will generate a detailed section even if there is only a brief 
+# description.
+
+ALWAYS_DETAILED_SEC = NO
+
+# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all 
+# inherited members of a class in the documentation of that class as if those 
+# members were ordinary class members. Constructors, destructors and assignment 
+# operators of the base classes will not be shown.
+
+INLINE_INHERITED_MEMB = NO
+
+# If the FULL_PATH_NAMES tag is set to YES then Doxygen will prepend the full 
+# path before files name in the file list and in the header files. If set 
+# to NO the shortest path that makes the file name unique will be used.
+
+FULL_PATH_NAMES = YES
+
+# If the FULL_PATH_NAMES tag is set to YES then the STRIP_FROM_PATH tag 
+# can be used to strip a user-defined part of the path. Stripping is 
+# only done if one of the specified strings matches the left-hand part of 
+# the path. The tag can be used to show relative paths in the file list. 
+# If left blank the directory from which doxygen is run is used as the 
+# path to strip.
+
+STRIP_FROM_PATH = 
+
+# The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of 
+# the path mentioned in the documentation of a class, which tells 
+# the reader which header file to include in order to use a class. 
+# If left blank only the name of the header file containing the class 
+# definition is used. Otherwise one should specify the include paths that 
+# are normally passed to the compiler using the -I flag.
+
+STRIP_FROM_INC_PATH = 
+
+# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter 
+# (but less readable) file names. This can be useful is your file systems 
+# doesn't support long names like on DOS, Mac, or CD-ROM.
+
+SHORT_NAMES = NO
+
+# If the JAVADOC_AUTOBRIEF tag is set to YES then Doxygen 
+# will interpret the first line (until the first dot) of a JavaDoc-style 
+# comment as the brief description. If set to NO, the JavaDoc 
+# comments will behave just like the Qt-style comments (thus requiring an 
+# explicit @brief command for a brief description.
+
+JAVADOC_AUTOBRIEF = NO
+
+# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make Doxygen 
+# treat a multi-line C++ special comment block (i.e. a block of //! or /// 
+# comments) as a brief description. This used to be the default behaviour. 
+# The new default is to treat a multi-line C++ comment block as a detailed 
+# description. Set this tag to YES if you prefer the old behaviour instead.
+
+MULTILINE_CPP_IS_BRIEF = NO
+
+# If the DETAILS_AT_TOP tag is set to YES then Doxygen 
+# will output the detailed description near the top, like JavaDoc.
+# If set to NO, the detailed description appears after the member 
+# documentation.
+
+DETAILS_AT_TOP = NO
+
+# If the INHERIT_DOCS tag is set to YES (the default) then an undocumented 
+# member inherits the documentation from any documented member that it 
+# re-implements.
+
+INHERIT_DOCS = YES
+
+# If the SEPARATE_MEMBER_PAGES tag is set to YES, then doxygen will produce 
+# a new page for each member. If set to NO, the documentation of a member will 
+# be part of the file/class/namespace that contains it.
+
+SEPARATE_MEMBER_PAGES = NO
+
+# The TAB_SIZE tag can be used to set the number of spaces in a tab. 
+# Doxygen uses this value to replace tabs by spaces in code fragments.
+
+TAB_SIZE = 8
+
+# This tag can be used to specify a number of aliases that acts 
+# as commands in the documentation. An alias has the form "name=value". 
+# For example adding "sideeffect=\par Side Effects:\n" will allow you to 
+# put the command \sideeffect (or @sideeffect) in the documentation, which 
+# will result in a user-defined paragraph with heading "Side Effects:". 
+# You can put \n's in the value part of an alias to insert newlines.
+
+ALIASES = 
+
+# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C 
+# sources only. Doxygen will then generate output that is more tailored for C. 
+# For instance, some of the names that are used will be different. The list 
+# of all members will be omitted, etc.
+
+OPTIMIZE_OUTPUT_FOR_C = YES
+
+# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java 
+# sources only. Doxygen will then generate output that is more tailored for Java. 
+# For instance, namespaces will be presented as packages, qualified scopes 
+# will look different, etc.
+
+OPTIMIZE_OUTPUT_JAVA = NO
+
+# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want to 
+# include (a tag file for) the STL sources as input, then you should 
+# set this tag to YES in order to let doxygen match functions declarations and 
+# definitions whose arguments contain STL classes (e.g. func(std::string); v.s. 
+# func(std::string) {}). This also make the inheritance and collaboration 
+# diagrams that involve STL classes more complete and accurate.
+
+BUILTIN_STL_SUPPORT = NO
+
+# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC 
+# tag is set to YES, then doxygen will reuse the documentation of the first 
+# member in the group (if any) for the other members of the group. By default 
+# all members of a group must be documented explicitly.
+
+DISTRIBUTE_GROUP_DOC = NO
+
+# Set the SUBGROUPING tag to YES (the default) to allow class member groups of 
+# the same type (for instance a group of public functions) to be put as a 
+# subgroup of that type (e.g. under the Public Functions section). Set it to 
+# NO to prevent subgrouping. Alternatively, this can be done per class using 
+# the \nosubgrouping command.
+
+SUBGROUPING = YES
+
+#---------------------------------------------------------------------------
+# Build related configuration options
+#---------------------------------------------------------------------------
+
+# If the EXTRACT_ALL tag is set to YES doxygen will assume all entities in 
+# documentation are documented, even if no documentation was available. 
+# Private class members and static file members will be hidden unless 
+# the EXTRACT_PRIVATE and EXTRACT_STATIC tags are set to YES
+
+EXTRACT_ALL = NO
+
+# If the EXTRACT_PRIVATE tag is set to YES all private members of a class 
+# will be included in the documentation.
+
+EXTRACT_PRIVATE = NO
+
+# If the EXTRACT_STATIC tag is set to YES all static members of a file 
+# will be included in the documentation.
+
+EXTRACT_STATIC = YES
+
+# If the EXTRACT_LOCAL_CLASSES tag is set to YES classes (and structs) 
+# defined locally in source files will be included in the documentation. 
+# If set to NO only classes defined in header files are included.
+
+EXTRACT_LOCAL_CLASSES = YES
+
+# This flag is only useful for Objective-C code. When set to YES local 
+# methods, which are defined in the implementation section but not in 
+# the interface are included in the documentation. 
+# If set to NO (the default) only methods in the interface are included.
+
+EXTRACT_LOCAL_METHODS = NO
+
+# If the HIDE_UNDOC_MEMBERS tag is set to YES, Doxygen will hide all 
+# undocumented members of documented classes, files or namespaces. 
+# If set to NO (the default) these members will be included in the 
+# various overviews, but no documentation section is generated. 
+# This option has no effect if EXTRACT_ALL is enabled.
+
+HIDE_UNDOC_MEMBERS = NO
+
+# If the HIDE_UNDOC_CLASSES tag is set to YES, Doxygen will hide all 
+# undocumented classes that are normally visible in the class hierarchy. 
+# If set to NO (the default) these classes will be included in the various 
+# overviews. This option has no effect if EXTRACT_ALL is enabled.
+
+HIDE_UNDOC_CLASSES = NO
+
+# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, Doxygen will hide all 
+# friend (class|struct|union) declarations. 
+# If set to NO (the default) these declarations will be included in the 
+# documentation.
+
+HIDE_FRIEND_COMPOUNDS = NO
+
+# If the HIDE_IN_BODY_DOCS tag is set to YES, Doxygen will hide any 
+# documentation blocks found inside the body of a function. 
+# If set to NO (the default) these blocks will be appended to the 
+# function's detailed documentation block.
+
+HIDE_IN_BODY_DOCS = NO
+
+# The INTERNAL_DOCS tag determines if documentation 
+# that is typed after a \internal command is included. If the tag is set 
+# to NO (the default) then the documentation will be excluded. 
+# Set it to YES to include the internal documentation.
+
+INTERNAL_DOCS = NO
+
+# If the CASE_SENSE_NAMES tag is set to NO then Doxygen will only generate 
+# file names in lower-case letters. If set to YES upper-case letters are also 
+# allowed. This is useful if you have classes or files whose names only differ 
+# in case and if your file system supports case sensitive file names. Windows 
+# and Mac users are advised to set this option to NO.
+
+CASE_SENSE_NAMES = YES
+
+# If the HIDE_SCOPE_NAMES tag is set to NO (the default) then Doxygen 
+# will show members with their full class and namespace scopes in the 
+# documentation. If set to YES the scope will be hidden.
+
+HIDE_SCOPE_NAMES = NO
+
+# If the SHOW_INCLUDE_FILES tag is set to YES (the default) then Doxygen 
+# will put a list of the files that are included by a file in the documentation 
+# of that file.
+
+SHOW_INCLUDE_FILES = NO
+
+# If the INLINE_INFO tag is set to YES (the default) then a tag [inline] 
+# is inserted in the documentation for inline members.
+
+INLINE_INFO = YES
+
+# If the SORT_MEMBER_DOCS tag is set to YES (the default) then doxygen 
+# will sort the (detailed) documentation of file and class members 
+# alphabetically by member name. If set to NO the members will appear in 
+# declaration order.
+
+SORT_MEMBER_DOCS = YES
+
+# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the 
+# brief documentation of file, namespace and class members alphabetically 
+# by member name. If set to NO (the default) the members will appear in 
+# declaration order.
+
+SORT_BRIEF_DOCS = NO
+
+# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be 
+# sorted by fully-qualified names, including namespaces. If set to 
+# NO (the default), the class list will be sorted only by class name, 
+# not including the namespace part. 
+# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES.
+# Note: This option applies only to the class list, not to the 
+# alphabetical list.
+
+SORT_BY_SCOPE_NAME = NO
+
+# The GENERATE_TODOLIST tag can be used to enable (YES) or 
+# disable (NO) the todo list. This list is created by putting \todo 
+# commands in the documentation.
+
+GENERATE_TODOLIST = YES
+
+# The GENERATE_TESTLIST tag can be used to enable (YES) or 
+# disable (NO) the test list. This list is created by putting \test 
+# commands in the documentation.
+
+GENERATE_TESTLIST = YES
+
+# The GENERATE_BUGLIST tag can be used to enable (YES) or 
+# disable (NO) the bug list. This list is created by putting \bug 
+# commands in the documentation.
+
+GENERATE_BUGLIST = YES
+
+# The GENERATE_DEPRECATEDLIST tag can be used to enable (YES) or 
+# disable (NO) the deprecated list. This list is created by putting 
+# \deprecated commands in the documentation.
+
+GENERATE_DEPRECATEDLIST = YES
+
+# The ENABLED_SECTIONS tag can be used to enable conditional 
+# documentation sections, marked by \if sectionname ... \endif.
+
+ENABLED_SECTIONS = 
+
+# The MAX_INITIALIZER_LINES tag determines the maximum number of lines 
+# the initial value of a variable or define consists of for it to appear in 
+# the documentation. If the initializer consists of more lines than specified 
+# here it will be hidden. Use a value of 0 to hide initializers completely. 
+# The appearance of the initializer of individual variables and defines in the 
+# documentation can be controlled using \showinitializer or \hideinitializer 
+# command in the documentation regardless of this setting.
+
+MAX_INITIALIZER_LINES = 30
+
+# Set the SHOW_USED_FILES tag to NO to disable the list of files generated 
+# at the bottom of the documentation of classes and structs. If set to YES the 
+# list will mention the files that were used to generate the documentation.
+
+SHOW_USED_FILES = YES
+
+# If the sources in your project are distributed over multiple directories 
+# then setting the SHOW_DIRECTORIES tag to YES will show the directory hierarchy 
+# in the documentation. The default is NO.
+
+SHOW_DIRECTORIES = NO
+
+# The FILE_VERSION_FILTER tag can be used to specify a program or script that 
+# doxygen should invoke to get the current version for each file (typically from the 
+# version control system). Doxygen will invoke the program by executing (via 
+# popen()) the command <command> <input-file>, where <command> is the value of 
+# the FILE_VERSION_FILTER tag, and <input-file> is the name of an input file 
+# provided by doxygen. Whatever the program writes to standard output 
+# is used as the file version. See the manual for examples.
+
+FILE_VERSION_FILTER = 
+
+#---------------------------------------------------------------------------
+# configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+
+# The QUIET tag can be used to turn on/off the messages that are generated 
+# by doxygen. Possible values are YES and NO. If left blank NO is used.
+
+QUIET = NO
+
+# The WARNINGS tag can be used to turn on/off the warning messages that are 
+# generated by doxygen. Possible values are YES and NO. If left blank 
+# NO is used.
+
+WARNINGS = YES
+
+# If WARN_IF_UNDOCUMENTED is set to YES, then doxygen will generate warnings 
+# for undocumented members. If EXTRACT_ALL is set to YES then this flag will 
+# automatically be disabled.
+
+WARN_IF_UNDOCUMENTED = YES
+
+# If WARN_IF_DOC_ERROR is set to YES, doxygen will generate warnings for 
+# potential errors in the documentation, such as not documenting some 
+# parameters in a documented function, or documenting parameters that 
+# don't exist or using markup commands wrongly.
+
+WARN_IF_DOC_ERROR = YES
+
+# This WARN_NO_PARAMDOC option can be abled to get warnings for 
+# functions that are documented, but have no documentation for their parameters 
+# or return value. If set to NO (the default) doxygen will only warn about 
+# wrong or incomplete parameter documentation, but not about the absence of 
+# documentation.
+
+WARN_NO_PARAMDOC = NO
+
+# The WARN_FORMAT tag determines the format of the warning messages that 
+# doxygen can produce. The string should contain the $file, $line, and $text 
+# tags, which will be replaced by the file and line number from which the 
+# warning originated and the warning text. Optionally the format may contain 
+# $version, which will be replaced by the version of the file (if it could 
+# be obtained via FILE_VERSION_FILTER)
+
+WARN_FORMAT = "$file:$line: $text"
+
+# The WARN_LOGFILE tag can be used to specify a file to which warning 
+# and error messages should be written. If left blank the output is written 
+# to stderr.
+
+WARN_LOGFILE = 
+
+#---------------------------------------------------------------------------
+# configuration options related to the input files
+#---------------------------------------------------------------------------
+
+# The INPUT tag can be used to specify the files and/or directories that contain 
+# documented source files. You may enter file names like "myfile.cpp" or 
+# directories like "/usr/src/myproject". Separate the files or directories 
+# with spaces.
+
+INPUT = include/zoo_queue.h
+
+# If the value of the INPUT tag contains directories, you can use the 
+# FILE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp 
+# and *.h) to filter out the source-files in the directories. If left 
+# blank the following patterns are tested: 
+# *.c *.cc *.cxx *.cpp *.c++ *.java *.ii *.ixx *.ipp *.i++ *.inl *.h *.hh *.hxx 
+# *.hpp *.h++ *.idl *.odl *.cs *.php *.php3 *.inc *.m *.mm *.py
+
+FILE_PATTERNS = 
+
+# The RECURSIVE tag can be used to turn specify whether or not subdirectories 
+# should be searched for input files as well. Possible values are YES and NO. 
+# If left blank NO is used.
+
+RECURSIVE = NO
+
+# The EXCLUDE tag can be used to specify files and/or directories that should 
+# excluded from the INPUT source files. This way you can easily exclude a 
+# subdirectory from a directory tree whose root is specified with the INPUT tag.
+
+EXCLUDE = 
+
+# The EXCLUDE_SYMLINKS tag can be used select whether or not files or 
+# directories that are symbolic links (a Unix filesystem feature) are excluded 
+# from the input.
+
+EXCLUDE_SYMLINKS = NO
+
+# If the value of the INPUT tag contains directories, you can use the 
+# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude 
+# certain files from those directories. Note that the wildcards are matched 
+# against the file with absolute path, so to exclude all test directories 
+# for example use the pattern */test/*
+
+EXCLUDE_PATTERNS = 
+
+# The EXAMPLE_PATH tag can be used to specify one or more files or 
+# directories that contain example code fragments that are included (see 
+# the \include command).
+
+EXAMPLE_PATH = 
+
+# If the value of the EXAMPLE_PATH tag contains directories, you can use the 
+# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp 
+# and *.h) to filter out the source-files in the directories. If left 
+# blank all files are included.
+
+EXAMPLE_PATTERNS = 
+
+# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be 
+# searched for input files to be used with the \include or \dontinclude 
+# commands irrespective of the value of the RECURSIVE tag. 
+# Possible values are YES and NO. If left blank NO is used.
+
+EXAMPLE_RECURSIVE = NO
+
+# The IMAGE_PATH tag can be used to specify one or more files or 
+# directories that contain image that are included in the documentation (see 
+# the \image command).
+
+IMAGE_PATH = 
+
+# The INPUT_FILTER tag can be used to specify a program that doxygen should 
+# invoke to filter for each input file. Doxygen will invoke the filter program 
+# by executing (via popen()) the command <filter> <input-file>, where <filter> 
+# is the value of the INPUT_FILTER tag, and <input-file> is the name of an 
+# input file. Doxygen will then use the output that the filter program writes 
+# to standard output.  If FILTER_PATTERNS is specified, this tag will be 
+# ignored.
+
+INPUT_FILTER = 
+
+# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern 
+# basis.  Doxygen will compare the file name with each pattern and apply the 
+# filter if there is a match.  The filters are a list of the form: 
+# pattern=filter (like *.cpp=my_cpp_filter). See INPUT_FILTER for further 
+# info on how filters are used. If FILTER_PATTERNS is empty, INPUT_FILTER 
+# is applied to all files.
+
+FILTER_PATTERNS = 
+
+# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using 
+# INPUT_FILTER) will be used to filter the input files when producing source 
+# files to browse (i.e. when SOURCE_BROWSER is set to YES).
+
+FILTER_SOURCE_FILES = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to source browsing
+#---------------------------------------------------------------------------
+
+# If the SOURCE_BROWSER tag is set to YES then a list of source files will 
+# be generated. Documented entities will be cross-referenced with these sources. 
+# Note: To get rid of all source code in the generated output, make sure also 
+# VERBATIM_HEADERS is set to NO.
+
+SOURCE_BROWSER = NO
+
+# Setting the INLINE_SOURCES tag to YES will include the body 
+# of functions and classes directly in the documentation.
+
+INLINE_SOURCES = NO
+
+# Setting the STRIP_CODE_COMMENTS tag to YES (the default) will instruct 
+# doxygen to hide any special comment blocks from generated source code 
+# fragments. Normal C and C++ comments will always remain visible.
+
+STRIP_CODE_COMMENTS = YES
+
+# If the REFERENCED_BY_RELATION tag is set to YES (the default) 
+# then for each documented function all documented 
+# functions referencing it will be listed.
+
+REFERENCED_BY_RELATION = YES
+
+# If the REFERENCES_RELATION tag is set to YES (the default) 
+# then for each documented function all documented entities 
+# called/used by that function will be listed.
+
+REFERENCES_RELATION = YES
+
+# If the REFERENCES_LINK_SOURCE tag is set to YES (the default)
+# and SOURCE_BROWSER tag is set to YES, then the hyperlinks from
+# functions in REFERENCES_RELATION and REFERENCED_BY_RELATION lists will
+# link to the source code.  Otherwise they will link to the documentstion.
+
+REFERENCES_LINK_SOURCE = YES
+
+# If the USE_HTAGS tag is set to YES then the references to source code 
+# will point to the HTML generated by the htags(1) tool instead of doxygen 
+# built-in source browser. The htags tool is part of GNU's global source 
+# tagging system (see http://www.gnu.org/software/global/global.html). You 
+# will need version 4.8.6 or higher.
+
+USE_HTAGS = NO
+
+# If the VERBATIM_HEADERS tag is set to YES (the default) then Doxygen 
+# will generate a verbatim copy of the header file for each class for 
+# which an include is specified. Set to NO to disable this.
+
+VERBATIM_HEADERS = YES
+
+#---------------------------------------------------------------------------
+# configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+
+# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index 
+# of all compounds will be generated. Enable this if the project 
+# contains a lot of classes, structs, unions or interfaces.
+
+ALPHABETICAL_INDEX = NO
+
+# If the alphabetical index is enabled (see ALPHABETICAL_INDEX) then 
+# the COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns 
+# in which this list will be split (can be a number in the range [1..20])
+
+COLS_IN_ALPHA_INDEX = 5
+
+# In case all classes in a project start with a common prefix, all 
+# classes will be put under the same header in the alphabetical index. 
+# The IGNORE_PREFIX tag can be used to specify one or more prefixes that 
+# should be ignored while generating the index headers.
+
+IGNORE_PREFIX = 
+
+#---------------------------------------------------------------------------
+# configuration options related to the HTML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_HTML tag is set to YES (the default) Doxygen will 
+# generate HTML output.
+
+GENERATE_HTML = $(GENERATE_HTML)
+
+# The HTML_OUTPUT tag is used to specify where the HTML docs will be put. 
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
+# put in front of it. If left blank `html' will be used as the default path.
+
+HTML_OUTPUT = html
+
+# The HTML_FILE_EXTENSION tag can be used to specify the file extension for 
+# each generated HTML page (for example: .htm,.php,.asp). If it is left blank 
+# doxygen will generate files with .html extension.
+
+HTML_FILE_EXTENSION = .html
+
+# The HTML_HEADER tag can be used to specify a personal HTML header for 
+# each generated HTML page. If it is left blank doxygen will generate a 
+# standard header.
+
+HTML_HEADER = 
+
+# The HTML_FOOTER tag can be used to specify a personal HTML footer for 
+# each generated HTML page. If it is left blank doxygen will generate a 
+# standard footer.
+
+HTML_FOOTER = 
+
+# The HTML_STYLESHEET tag can be used to specify a user-defined cascading 
+# style sheet that is used by each HTML page. It can be used to 
+# fine-tune the look of the HTML output. If the tag is left blank doxygen 
+# will generate a default style sheet. Note that doxygen will try to copy 
+# the style sheet file to the HTML output directory, so don't put your own 
+# stylesheet in the HTML output directory as well, or it will be erased!
+
+HTML_STYLESHEET = 
+
+# If the HTML_ALIGN_MEMBERS tag is set to YES, the members of classes, 
+# files or namespaces will be aligned in HTML using tables. If set to 
+# NO a bullet list will be used.
+
+HTML_ALIGN_MEMBERS = YES
+
+# If the GENERATE_HTMLHELP tag is set to YES, additional index files 
+# will be generated that can be used as input for tools like the 
+# Microsoft HTML help workshop to generate a compressed HTML help file (.chm) 
+# of the generated HTML documentation.
+
+GENERATE_HTMLHELP = $(GENERATE_HTMLHELP)
+
+# If the GENERATE_HTMLHELP tag is set to YES, the CHM_FILE tag can 
+# be used to specify the file name of the resulting .chm file. You 
+# can add a path in front of the file if the result should not be 
+# written to the html output directory.
+
+CHM_FILE = ../$(PROJECT).chm
+
+# If the GENERATE_HTMLHELP tag is set to YES, the HHC_LOCATION tag can 
+# be used to specify the location (absolute path including file name) of 
+# the HTML help compiler (hhc.exe). If non-empty doxygen will try to run 
+# the HTML help compiler on the generated index.hhp.
+
+HHC_LOCATION = $(HHC_PATH)
+
+# If the GENERATE_HTMLHELP tag is set to YES, the GENERATE_CHI flag 
+# controls if a separate .chi index file is generated (YES) or that 
+# it should be included in the master .chm file (NO).
+
+GENERATE_CHI = $(GENERATE_CHI)
+
+# If the GENERATE_HTMLHELP tag is set to YES, the BINARY_TOC flag 
+# controls whether a binary table of contents is generated (YES) or a 
+# normal table of contents (NO) in the .chm file.
+
+BINARY_TOC = NO
+
+# The TOC_EXPAND flag can be set to YES to add extra items for group members 
+# to the contents of the HTML help documentation and to the tree view.
+
+TOC_EXPAND = NO
+
+# The DISABLE_INDEX tag can be used to turn on/off the condensed index at 
+# top of each HTML page. The value NO (the default) enables the index and 
+# the value YES disables it.
+
+DISABLE_INDEX = NO
+
+# This tag can be used to set the number of enum values (range [1..20]) 
+# that doxygen will group on one line in the generated HTML documentation.
+
+ENUM_VALUES_PER_LINE = 4
+
+# If the GENERATE_TREEVIEW tag is set to YES, a side panel will be
+# generated containing a tree-like index structure (just like the one that 
+# is generated for HTML Help). For this to work a browser that supports 
+# JavaScript, DHTML, CSS and frames is required (for instance Mozilla 1.0+, 
+# Netscape 6.0+, Internet explorer 5.0+, or Konqueror). Windows users are 
+# probably better off using the HTML help feature.
+
+GENERATE_TREEVIEW = NO
+
+# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be 
+# used to set the initial width (in pixels) of the frame in which the tree 
+# is shown.
+
+TREEVIEW_WIDTH = 250
+
+#---------------------------------------------------------------------------
+# configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_LATEX tag is set to YES (the default) Doxygen will 
+# generate Latex output.
+
+GENERATE_LATEX = $(GENERATE_LATEX)
+
+# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. 
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
+# put in front of it. If left blank `latex' will be used as the default path.
+
+LATEX_OUTPUT = latex
+
+# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be 
+# invoked. If left blank `latex' will be used as the default command name.
+
+LATEX_CMD_NAME = latex
+
+# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to 
+# generate index for LaTeX. If left blank `makeindex' will be used as the 
+# default command name.
+
+MAKEINDEX_CMD_NAME = makeindex
+
+# If the COMPACT_LATEX tag is set to YES Doxygen generates more compact 
+# LaTeX documents. This may be useful for small projects and may help to 
+# save some trees in general.
+
+COMPACT_LATEX = NO
+
+# The PAPER_TYPE tag can be used to set the paper type that is used 
+# by the printer. Possible values are: a4, a4wide, letter, legal and 
+# executive. If left blank a4wide will be used.
+
+PAPER_TYPE = $(PAPER_SIZE)
+
+# The EXTRA_PACKAGES tag can be to specify one or more names of LaTeX 
+# packages that should be included in the LaTeX output.
+
+EXTRA_PACKAGES = 
+
+# The LATEX_HEADER tag can be used to specify a personal LaTeX header for 
+# the generated latex document. The header should contain everything until 
+# the first chapter. If it is left blank doxygen will generate a 
+# standard header. Notice: only use this tag if you know what you are doing!
+
+LATEX_HEADER = 
+
+# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated 
+# is prepared for conversion to pdf (using ps2pdf). The pdf file will 
+# contain links (just like the HTML output) instead of page references 
+# This makes the output suitable for online browsing using a pdf viewer.
+
+PDF_HYPERLINKS = NO
+
+# If the USE_PDFLATEX tag is set to YES, pdflatex will be used instead of 
+# plain latex in the generated Makefile. Set this option to YES to get a 
+# higher quality PDF documentation.
+
+USE_PDFLATEX = $(GENERATE_PDF)
+
+# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \\batchmode. 
+# command to the generated LaTeX files. This will instruct LaTeX to keep 
+# running if errors occur, instead of asking the user for help. 
+# This option is also used when generating formulas in HTML.
+
+LATEX_BATCHMODE = NO
+
+# If LATEX_HIDE_INDICES is set to YES then doxygen will not 
+# include the index chapters (such as File Index, Compound Index, etc.) 
+# in the output.
+
+LATEX_HIDE_INDICES = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the RTF output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_RTF tag is set to YES Doxygen will generate RTF output 
+# The RTF output is optimized for Word 97 and may not look very pretty with 
+# other RTF readers or editors.
+
+GENERATE_RTF = $(GENERATE_RTF)
+
+# The RTF_OUTPUT tag is used to specify where the RTF docs will be put. 
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
+# put in front of it. If left blank `rtf' will be used as the default path.
+
+RTF_OUTPUT = rtf
+
+# If the COMPACT_RTF tag is set to YES Doxygen generates more compact 
+# RTF documents. This may be useful for small projects and may help to 
+# save some trees in general.
+
+COMPACT_RTF = NO
+
+# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated 
+# will contain hyperlink fields. The RTF file will 
+# contain links (just like the HTML output) instead of page references. 
+# This makes the output suitable for online browsing using WORD or other 
+# programs which support those fields. 
+# Note: wordpad (write) and others do not support links.
+
+RTF_HYPERLINKS = NO
+
+# Load stylesheet definitions from file. Syntax is similar to doxygen's 
+# config file, i.e. a series of assignments. You only have to provide 
+# replacements, missing definitions are set to their default value.
+
+RTF_STYLESHEET_FILE = 
+
+# Set optional variables used in the generation of an rtf document. 
+# Syntax is similar to doxygen's config file.
+
+RTF_EXTENSIONS_FILE = 
+
+#---------------------------------------------------------------------------
+# configuration options related to the man page output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_MAN tag is set to YES (the default) Doxygen will 
+# generate man pages
+
+GENERATE_MAN = $(GENERATE_MAN)
+
+# The MAN_OUTPUT tag is used to specify where the man pages will be put. 
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
+# put in front of it. If left blank `man' will be used as the default path.
+
+MAN_OUTPUT = man
+
+# The MAN_EXTENSION tag determines the extension that is added to 
+# the generated man pages (default is the subroutine's section .3)
+
+MAN_EXTENSION = .3
+
+# If the MAN_LINKS tag is set to YES and Doxygen generates man output, 
+# then it will generate one additional man file for each entity 
+# documented in the real man page(s). These additional files 
+# only source the real man page, but without them the man command 
+# would be unable to find the correct page. The default is NO.
+
+MAN_LINKS = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the XML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_XML tag is set to YES Doxygen will 
+# generate an XML file that captures the structure of 
+# the code including all documentation.
+
+GENERATE_XML = $(GENERATE_XML)
+
+# The XML_OUTPUT tag is used to specify where the XML pages will be put. 
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
+# put in front of it. If left blank `xml' will be used as the default path.
+
+XML_OUTPUT = xml
+
+# The XML_SCHEMA tag can be used to specify an XML schema, 
+# which can be used by a validating XML parser to check the 
+# syntax of the XML files.
+
+XML_SCHEMA = 
+
+# The XML_DTD tag can be used to specify an XML DTD, 
+# which can be used by a validating XML parser to check the 
+# syntax of the XML files.
+
+XML_DTD = 
+
+# If the XML_PROGRAMLISTING tag is set to YES Doxygen will 
+# dump the program listings (including syntax highlighting 
+# and cross-referencing information) to the XML output. Note that 
+# enabling this will significantly increase the size of the XML output.
+
+XML_PROGRAMLISTING = YES
+
+#---------------------------------------------------------------------------
+# configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_AUTOGEN_DEF tag is set to YES Doxygen will 
+# generate an AutoGen Definitions (see autogen.sf.net) file 
+# that captures the structure of the code including all 
+# documentation. Note that this feature is still experimental 
+# and incomplete at the moment.
+
+GENERATE_AUTOGEN_DEF = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the Perl module output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_PERLMOD tag is set to YES Doxygen will 
+# generate a Perl module file that captures the structure of 
+# the code including all documentation. Note that this 
+# feature is still experimental and incomplete at the 
+# moment.
+
+GENERATE_PERLMOD = NO
+
+# If the PERLMOD_LATEX tag is set to YES Doxygen will generate 
+# the necessary Makefile rules, Perl scripts and LaTeX code to be able 
+# to generate PDF and DVI output from the Perl module output.
+
+PERLMOD_LATEX = NO
+
+# If the PERLMOD_PRETTY tag is set to YES the Perl module output will be 
+# nicely formatted so it can be parsed by a human reader.  This is useful 
+# if you want to understand what is going on.  On the other hand, if this 
+# tag is set to NO the size of the Perl module output will be much smaller 
+# and Perl will parse it just the same.
+
+PERLMOD_PRETTY = YES
+
+# The names of the make variables in the generated doxyrules.make file 
+# are prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX. 
+# This is useful so different doxyrules.make files included by the same 
+# Makefile don't overwrite each other's variables.
+
+PERLMOD_MAKEVAR_PREFIX = 
+
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor   
+#---------------------------------------------------------------------------
+
+# If the ENABLE_PREPROCESSING tag is set to YES (the default) Doxygen will 
+# evaluate all C-preprocessor directives found in the sources and include 
+# files.
+
+ENABLE_PREPROCESSING = YES
+
+# If the MACRO_EXPANSION tag is set to YES Doxygen will expand all macro 
+# names in the source code. If set to NO (the default) only conditional 
+# compilation will be performed. Macro expansion can be done in a controlled 
+# way by setting EXPAND_ONLY_PREDEF to YES.
+
+MACRO_EXPANSION = NO
+
+# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES 
+# then the macro expansion is limited to the macros specified with the 
+# PREDEFINED and EXPAND_AS_DEFINED tags.
+
+EXPAND_ONLY_PREDEF = NO
+
+# If the SEARCH_INCLUDES tag is set to YES (the default) the includes files 
+# in the INCLUDE_PATH (see below) will be search if a #include is found.
+
+SEARCH_INCLUDES = YES
+
+# The INCLUDE_PATH tag can be used to specify one or more directories that 
+# contain include files that are not input files but should be processed by 
+# the preprocessor.
+
+INCLUDE_PATH = 
+
+# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard 
+# patterns (like *.h and *.hpp) to filter out the header-files in the 
+# directories. If left blank, the patterns specified with FILE_PATTERNS will 
+# be used.
+
+INCLUDE_FILE_PATTERNS = 
+
+# The PREDEFINED tag can be used to specify one or more macro names that 
+# are defined before the preprocessor is started (similar to the -D option of 
+# gcc). The argument of the tag is a list of macros of the form: name 
+# or name=definition (no spaces). If the definition and the = are 
+# omitted =1 is assumed. To prevent a macro definition from being 
+# undefined via #undef or recursively expanded use the := operator 
+# instead of the = operator.
+
+PREDEFINED = 
+
+# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then 
+# this tag can be used to specify a list of macro names that should be expanded. 
+# The macro definition that is found in the sources will be used. 
+# Use the PREDEFINED tag if you want to use a different macro definition.
+
+EXPAND_AS_DEFINED = 
+
+# If the SKIP_FUNCTION_MACROS tag is set to YES (the default) then 
+# doxygen's preprocessor will remove all function-like macros that are alone 
+# on a line, have an all uppercase name, and do not end with a semicolon. Such 
+# function macros are typically used for boiler-plate code, and will confuse 
+# the parser if not removed.
+
+SKIP_FUNCTION_MACROS = YES
+
+#---------------------------------------------------------------------------
+# Configuration::additions related to external references   
+#---------------------------------------------------------------------------
+
+# The TAGFILES option can be used to specify one or more tagfiles. 
+# Optionally an initial location of the external documentation 
+# can be added for each tagfile. The format of a tag file without 
+# this location is as follows: 
+#   TAGFILES = file1 file2 ... 
+# Adding location for the tag files is done as follows: 
+#   TAGFILES = file1=loc1 "file2 = loc2" ... 
+# where "loc1" and "loc2" can be relative or absolute paths or 
+# URLs. If a location is present for each tag, the installdox tool 
+# does not have to be run to correct the links.
+# Note that each tag file must have a unique name
+# (where the name does NOT include the path)
+# If a tag file is not located in the directory in which doxygen 
+# is run, you must also specify the path to the tagfile here.
+
+TAGFILES = 
+
+# When a file name is specified after GENERATE_TAGFILE, doxygen will create 
+# a tag file that is based on the input files it reads.
+
+GENERATE_TAGFILE = $(DOCDIR)/$(PROJECT).tag
+
+# If the ALLEXTERNALS tag is set to YES all external classes will be listed 
+# in the class index. If set to NO only the inherited external classes 
+# will be listed.
+
+ALLEXTERNALS = NO
+
+# If the EXTERNAL_GROUPS tag is set to YES all external groups will be listed 
+# in the modules index. If set to NO, only the current project's groups will 
+# be listed.
+
+EXTERNAL_GROUPS = YES
+
+# The PERL_PATH should be the absolute path and name of the perl script 
+# interpreter (i.e. the result of `which perl').
+
+PERL_PATH = /usr/bin/perl
+
+#---------------------------------------------------------------------------
+# Configuration options related to the dot tool   
+#---------------------------------------------------------------------------
+
+# If the CLASS_DIAGRAMS tag is set to YES (the default) Doxygen will 
+# generate a inheritance diagram (in HTML, RTF and LaTeX) for classes with base 
+# or super classes. Setting the tag to NO turns the diagrams off. Note that 
+# this option is superseded by the HAVE_DOT option below. This is only a 
+# fallback. It is recommended to install and use dot, since it yields more 
+# powerful graphs.
+
+CLASS_DIAGRAMS = YES
+
+# If set to YES, the inheritance and collaboration graphs will hide 
+# inheritance and usage relations if the target is undocumented 
+# or is not a class.
+
+HIDE_UNDOC_RELATIONS = YES
+
+# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is 
+# available from the path. This tool is part of Graphviz, a graph visualization 
+# toolkit from AT&T and Lucent Bell Labs. The other options in this section 
+# have no effect if this option is set to NO (the default)
+
+HAVE_DOT = $(HAVE_DOT)
+
+# If the CLASS_GRAPH and HAVE_DOT tags are set to YES then doxygen 
+# will generate a graph for each documented class showing the direct and 
+# indirect inheritance relations. Setting this tag to YES will force the 
+# the CLASS_DIAGRAMS tag to NO.
+
+CLASS_GRAPH = YES
+
+# If the COLLABORATION_GRAPH and HAVE_DOT tags are set to YES then doxygen 
+# will generate a graph for each documented class showing the direct and 
+# indirect implementation dependencies (inheritance, containment, and 
+# class references variables) of the class with other documented classes.
+
+COLLABORATION_GRAPH = YES
+
+# If the GROUP_GRAPHS and HAVE_DOT tags are set to YES then doxygen 
+# will generate a graph for groups, showing the direct groups dependencies
+
+GROUP_GRAPHS = YES
+
+# If the UML_LOOK tag is set to YES doxygen will generate inheritance and 
+# collaboration diagrams in a style similar to the OMG's Unified Modeling 
+# Language.
+
+UML_LOOK = NO
+
+# If set to YES, the inheritance and collaboration graphs will show the 
+# relations between templates and their instances.
+
+TEMPLATE_RELATIONS = NO
+
+# If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDE_GRAPH, and HAVE_DOT 
+# tags are set to YES then doxygen will generate a graph for each documented 
+# file showing the direct and indirect include dependencies of the file with 
+# other documented files.
+
+INCLUDE_GRAPH = YES
+
+# If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDED_BY_GRAPH, and 
+# HAVE_DOT tags are set to YES then doxygen will generate a graph for each 
+# documented header file showing the documented files that directly or 
+# indirectly include this file.
+
+INCLUDED_BY_GRAPH = YES
+
+# If the CALL_GRAPH and HAVE_DOT tags are set to YES then doxygen will 
+# generate a call dependency graph for every global function or class method. 
+# Note that enabling this option will significantly increase the time of a run. 
+# So in most cases it will be better to enable call graphs for selected 
+# functions only using the \callgraph command.
+
+CALL_GRAPH = NO
+
+# If the CALLER_GRAPH and HAVE_DOT tags are set to YES then doxygen will 
+# generate a caller dependency graph for every global function or class method. 
+# Note that enabling this option will significantly increase the time of a run. 
+# So in most cases it will be better to enable caller graphs for selected 
+# functions only using the \callergraph command.
+
+CALLER_GRAPH = NO
+
+# If the GRAPHICAL_HIERARCHY and HAVE_DOT tags are set to YES then doxygen 
+# will graphical hierarchy of all classes instead of a textual one.
+
+GRAPHICAL_HIERARCHY = YES
+
+# If the DIRECTORY_GRAPH, SHOW_DIRECTORIES and HAVE_DOT tags are set to YES 
+# then doxygen will show the dependencies a directory has on other directories 
+# in a graphical way. The dependency relations are determined by the #include
+# relations between the files in the directories.
+
+DIRECTORY_GRAPH = YES
+
+# The DOT_IMAGE_FORMAT tag can be used to set the image format of the images 
+# generated by dot. Possible values are png, jpg, or gif
+# If left blank png will be used.
+
+DOT_IMAGE_FORMAT = png
+
+# The tag DOT_PATH can be used to specify the path where the dot tool can be 
+# found. If left blank, it is assumed the dot tool can be found in the path.
+
+DOT_PATH = $(DOT_PATH)
+
+# The DOTFILE_DIRS tag can be used to specify one or more directories that 
+# contain dot files that are included in the documentation (see the 
+# \dotfile command).
+
+DOTFILE_DIRS = 
+
+# The MAX_DOT_GRAPH_WIDTH tag can be used to set the maximum allowed width 
+# (in pixels) of the graphs generated by dot. If a graph becomes larger than 
+# this value, doxygen will try to truncate the graph, so that it fits within 
+# the specified constraint. Beware that most browsers cannot cope with very 
+# large images.
+
+MAX_DOT_GRAPH_WIDTH = 1024
+
+# The MAX_DOT_GRAPH_HEIGHT tag can be used to set the maximum allows height 
+# (in pixels) of the graphs generated by dot. If a graph becomes larger than 
+# this value, doxygen will try to truncate the graph, so that it fits within 
+# the specified constraint. Beware that most browsers cannot cope with very 
+# large images.
+
+MAX_DOT_GRAPH_HEIGHT = 1024
+
+# The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the 
+# graphs generated by dot. A depth value of 3 means that only nodes reachable 
+# from the root by following a path via at most 3 edges will be shown. Nodes 
+# that lay further from the root node will be omitted. Note that setting this 
+# option to 1 or 2 may greatly reduce the computation time needed for large 
+# code bases. Also note that a graph may be further truncated if the graph's 
+# image dimensions are not sufficient to fit the graph (see MAX_DOT_GRAPH_WIDTH 
+# and MAX_DOT_GRAPH_HEIGHT). If 0 is used for the depth value (the default), 
+# the graph is not depth-constrained.
+
+MAX_DOT_GRAPH_DEPTH = 0
+
+# Set the DOT_TRANSPARENT tag to YES to generate images with a transparent 
+# background. This is disabled by default, which results in a white background. 
+# Warning: Depending on the platform used, enabling this option may lead to 
+# badly anti-aliased labels on the edges of a graph (i.e. they become hard to 
+# read).
+
+DOT_TRANSPARENT = NO
+
+# Set the DOT_MULTI_TARGETS tag to YES allow dot to generate multiple output 
+# files in one run (i.e. multiple -o and -T options on the command line). This 
+# makes dot run faster, but since only newer versions of dot (>1.8.10) 
+# support this, this feature is disabled by default.
+
+DOT_MULTI_TARGETS = NO
+
+# If the GENERATE_LEGEND tag is set to YES (the default) Doxygen will 
+# generate a legend page explaining the meaning of the various boxes and 
+# arrows in the dot generated graphs.
+
+GENERATE_LEGEND = YES
+
+# If the DOT_CLEANUP tag is set to YES (the default) Doxygen will 
+# remove the intermediate dot files that are used to generate 
+# the various graphs.
+
+DOT_CLEANUP = YES
+
+#---------------------------------------------------------------------------
+# Configuration::additions related to the search engine   
+#---------------------------------------------------------------------------
+
+# The SEARCHENGINE tag specifies whether or not a search engine should be 
+# used. If set to NO the values of all tags below this one will be ignored.
+
+SEARCHENGINE = NO

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/queue/src/c/configure.ac
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/queue/src/c/configure.ac b/zookeeper-recipes/queue/src/c/configure.ac
new file mode 100644
index 0000000..a9fb7b1
--- /dev/null
+++ b/zookeeper-recipes/queue/src/c/configure.ac
@@ -0,0 +1,82 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#                                               -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ(2.59)
+
+AC_INIT([zooqueue], [3.2.0])
+
+AC_CONFIG_SRCDIR([include/zoo_queue.h])
+
+PACKAGE=zooqueue
+VERSION=1.0
+
+AC_SUBST(PACKAGE)
+AC_SUBST(VERSION)
+
+BUILD_PATH="`pwd`"
+
+# Checks for programs.
+AC_LANG_CPLUSPLUS
+
+AM_INIT_AUTOMAKE([-Wall foreign])
+# Checks for libraries.
+
+#initialize Doxygen support
+DX_HTML_FEATURE(ON)
+DX_CHM_FEATURE(OFF)
+DX_CHI_FEATURE(OFF)
+DX_MAN_FEATURE(OFF)
+DX_RTF_FEATURE(OFF)
+DX_XML_FEATURE(OFF)
+DX_PDF_FEATURE(OFF)
+DX_PS_FEATURE(OFF)
+DX_INIT_DOXYGEN([zookeeper-queues],[c-doc.Doxyfile],[docs])
+
+  
+ZOOKEEPER_PATH=${BUILD_PATH}/../../../../../src/c
+ZOOKEEPER_LD=-L${BUILD_PATH}/../../../../../src/c\ -lzookeeper_mt
+
+AC_SUBST(ZOOKEEPER_PATH)
+AC_SUBST(ZOOKEEPER_LD)
+
+# Checks for header files.
+AC_HEADER_DIRENT
+AC_HEADER_STDC
+AC_CHECK_HEADERS([fcntl.h stdlib.h string.h sys/time.h unistd.h])
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_HEADER_STDBOOL
+AC_C_CONST
+AC_TYPE_UID_T
+AC_C_INLINE
+AC_TYPE_OFF_T
+AC_TYPE_SIZE_T
+AC_STRUCT_ST_BLOCKS
+AC_HEADER_TIME
+AC_C_VOLATILE
+AC_PROG_CC
+AC_PROG_LIBTOOL
+#check for cppunit 
+AM_PATH_CPPUNIT(1.10.2)
+# Checks for library functions.
+AC_FUNC_UTIME_NULL
+AC_CHECK_FUNCS([gettimeofday memset mkdir rmdir strdup strerror strstr strtol strtoul strtoull utime])
+
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT
+AC_C_VOLATILE

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/queue/src/c/include/zoo_queue.h
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/queue/src/c/include/zoo_queue.h b/zookeeper-recipes/queue/src/c/include/zoo_queue.h
new file mode 100644
index 0000000..ccc4602
--- /dev/null
+++ b/zookeeper-recipes/queue/src/c/include/zoo_queue.h
@@ -0,0 +1,118 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ZOOKEEPER_QUEUE_H_
+#define ZOOKEEPER_QUEUE_H_
+
+#include <zookeeper.h>
+#include <pthread.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/** 
+ * \file zoo_queue.h
+ * \brief zookeeper recipe for queues.
+ */
+
+
+struct zkr_queue {
+    zhandle_t *zh;
+    char *path;
+    struct ACL_vector *acl;
+    pthread_mutex_t pmutex;
+    char *node_name;
+    int node_name_length;
+    char *cached_create_path;
+};
+
+typedef struct zkr_queue zkr_queue_t;
+
+
+/**
+ * \brief initializes a zookeeper queue
+ *
+ * this method instantiates a zookeeper queue
+ * \param queue the zookeeper queue to initialize
+ * \param zh the zookeeper handle to use
+ * \param path the path in zookeeper to use for the queue 
+ * \param acl the acl to use in zookeeper.
+ * \return return 0 if successful.  
+ */
+ZOOAPI int zkr_queue_init(zkr_queue_t *queue, zhandle_t* zh, char* path, struct ACL_vector *acl);
+
+/**
+ * \brief adds an element to a zookeeper queue
+ *
+ * this method adds an element to the back of a zookeeper queue.
+ * \param queue the zookeeper queue to add the element to
+ * \param data a pointer to a data buffer
+ * \param buffer_len the length of the buffer
+ * \return returns 0 (ZOK) if successful, otherwise returns a zookeeper error code.
+ */
+ZOOAPI int zkr_queue_offer(zkr_queue_t *queue, const char *data, int buffer_len);
+
+/**
+ * \brief returns the head of a zookeeper queue 
+ *
+ * this method returns the head of a zookeeper queue without removing it.
+ * \param queue the zookeeper queue to add the element to
+ * \param buffer a pointer to a data buffer
+ * \param buffer_len a pointer to the length of the buffer
+ * \return returns 0 (ZOK) and sets *buffer_len to the length of data written if successful (-1 if the queue is empty). Otherwise it will set *buffer_len to -1 and return a zookeeper error code. 
+ */
+ZOOAPI int zkr_queue_element(zkr_queue_t *queue, char *buffer, int *buffer_len);
+
+/**
+ * \brief returns the head of a zookeeper queue 
+ *
+ * this method returns the head of a zookeeper queue without removing it.
+ * \param queue the zookeeper queue to get the head of
+ * \param buffer a pointer to a data buffer
+ * \param buffer_len a pointer to the length of the buffer
+ * \return returns 0 (ZOK) and sets *buffer_len to the length of data written if successful (-1 if the queue is empty). Otherwise it will set *buffer_len to -1 and return a zookeeper error code. 
+ */
+ZOOAPI int zkr_queue_remove(zkr_queue_t *queue, char *buffer, int *buffer_len);
+
+/**
+ * \brief removes and returns the head of a zookeeper queue, blocks if necessary 
+ *
+ * this method returns the head of a zookeeper queue without removing it.
+ * \param queue the zookeeper queue to remove and return the head of 
+ * \param buffer a pointer to a data buffer
+ * \param buffer_len a pointer to the length of the buffer
+ * \return returns 0 (ZOK) and sets *buffer_len to the length of data written if successful. Otherwise it will set *buffer_len to -1 and return a zookeeper error code. 
+ */
+ZOOAPI int zkr_queue_take(zkr_queue_t *queue, char *buffer, int *buffer_len);
+
+/**
+ * \brief destroys a zookeeper queue structure 
+ *
+ * this destroys a zookeeper queue structure, this is only a local operation and will not affect
+ * the state of the queue on the zookeeper server.
+ * \param queue the zookeeper queue to destroy
+ */
+void zkr_queue_destroy(zkr_queue_t *queue);
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif  //ZOOKEEPER_QUEUE_H_

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/queue/src/c/src/zoo_queue.c
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/queue/src/c/src/zoo_queue.c b/zookeeper-recipes/queue/src/c/src/zoo_queue.c
new file mode 100644
index 0000000..89ec24b
--- /dev/null
+++ b/zookeeper-recipes/queue/src/c/src/zoo_queue.c
@@ -0,0 +1,442 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifdef DLL_EXPORT
+#define USE_STATIC_LIB
+#endif
+
+#if defined(__CYGWIN__)
+#define USE_IPV6
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <zookeeper_log.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/socket.h>
+#include <limits.h>
+#include <zoo_queue.h>
+#include <stdbool.h>
+#ifdef HAVE_SYS_UTSNAME_H
+#include <sys/utsname.h>
+#endif
+
+#ifdef HAVE_GETPWUID_R
+#include <pwd.h>
+#endif
+
+#define IF_DEBUG(x) if (logLevel==ZOO_LOG_LEVEL_DEBUG) {x;}
+
+
+static void free_String_vector(struct String_vector *v) {
+    if (v->data) {
+        int32_t i;
+        for (i=0; i<v->count; i++) {
+            free(v->data[i]);
+        }
+        free(v->data);
+        v->data = 0;
+    }
+}
+
+
+static int vstrcmp(const void* str1, const void* str2) {
+    const char **a = (const char**)str1;
+    const char **b = (const char**) str2;
+    return strcmp(*a, *b); 
+}
+
+static void sort_children(struct String_vector *vector) {
+    qsort( vector->data, vector->count, sizeof(char*), &vstrcmp);
+}
+
+
+static void concat_path_nodename_n(char *buffer, int len, const char *path, const char *node_name){
+    snprintf(buffer, len, "%s/%s", path, node_name); 
+}
+
+static char *concat_path_nodename(const char *path, const char *node_name){
+    int node_path_length = strlen(path) + 1+ strlen(node_name) +1;
+    char *node_path = (char *) malloc(node_path_length * sizeof(char));
+    concat_path_nodename_n(node_path, node_path_length, path, node_name);
+    return node_path;
+}  
+
+
+static void zkr_queue_cache_create_path(zkr_queue_t *queue){
+    if(queue->cached_create_path != NULL){
+        free(queue->cached_create_path);
+    }
+    queue->cached_create_path = concat_path_nodename(queue->path, queue->node_name);
+}
+
+ZOOAPI int zkr_queue_init(zkr_queue_t *queue, zhandle_t* zh, char* path, struct ACL_vector *acl){
+    queue->zh = zh;
+    queue->path = path;
+    queue->node_name = "qn-";
+    queue->node_name_length = strlen(queue->node_name);
+    queue->cached_create_path = NULL;
+    queue->acl = acl;
+    pthread_mutex_init(&(queue->pmutex), NULL);
+    zkr_queue_cache_create_path(queue);
+    return 0;
+}
+
+static ZOOAPI int create_queue_root(zkr_queue_t *queue){
+    return zoo_create(queue->zh, queue->path, NULL, 0, queue->acl, 0, NULL, 0 );
+}
+
+static int valid_child_name(zkr_queue_t *queue, const char *child_name){
+    return strncmp(queue->node_name, child_name, queue->node_name_length);
+}
+
+ZOOAPI int zkr_queue_offer(zkr_queue_t *queue, const char *data, int buffer_len){
+    for(;;){
+        int rc = zoo_create(queue->zh, queue->cached_create_path, data, buffer_len, queue->acl, ZOO_SEQUENCE, NULL, 0 );
+        switch(rc){
+            int create_root_rc;
+        case ZNONODE:
+            create_root_rc = create_queue_root(queue);
+            switch(create_root_rc){
+            case ZNODEEXISTS:
+            case ZOK:
+                break;
+            default:
+                return create_root_rc; 
+            }
+            break;
+        default:
+            return rc;
+        }
+    }
+}
+
+
+ZOOAPI int zkr_queue_element(zkr_queue_t *queue, char *buffer, int *buffer_len){
+    int path_length = strlen(queue->path);
+    for(;;){
+        struct String_vector stvector;
+        struct String_vector *vector = &stvector;
+        /*Get sorted children*/
+        int get_children_rc = zoo_get_children(queue->zh, queue->path, 0, vector);
+        switch(get_children_rc){
+        case ZOK:
+            break;
+        case ZNONODE:
+            *buffer_len = -1;
+            return ZOK;
+        default:
+            return get_children_rc;
+        }
+        if(stvector.count == 0){
+            *buffer_len = -1;
+            return ZOK;
+        }
+
+        sort_children(vector);
+        /*try all*/
+        int i;
+        for(i=0; i < stvector.count; i++){
+            char *child_name = stvector.data[i];
+            int child_path_length = path_length + 1 + strlen(child_name) +1; 
+            char child_path[child_path_length];
+            concat_path_nodename_n(child_path, child_path_length, queue->path, child_name);
+            int get_rc = zoo_get(queue->zh, child_path, 0, buffer, buffer_len, NULL);
+            switch(get_rc){
+            case ZOK:
+                free_String_vector(vector);
+                return ZOK;
+            case ZNONODE:
+                break;
+            default:
+                free_String_vector(vector);
+                return get_rc;
+            }
+        }
+    
+        free_String_vector(vector);
+    }
+}
+
+ZOOAPI int zkr_queue_remove(zkr_queue_t *queue, char *buffer, int *buffer_len){
+    int path_length = strlen(queue->path);
+    for(;;){
+        struct String_vector stvector;
+        struct String_vector *vector = &stvector;
+        /*Get sorted children*/
+        int get_children_rc = zoo_get_children(queue->zh, queue->path, 0, &stvector);
+        switch(get_children_rc){
+        case ZOK:
+            break;
+        case ZNONODE:
+            *buffer_len = -1;
+            return ZOK;
+            
+        default:
+            *buffer_len = -1;
+            return get_children_rc;
+        }
+        if(stvector.count == 0){
+            *buffer_len = -1;
+            return ZOK;
+        }
+
+        sort_children(vector);
+        /*try all*/
+        int i;
+        for( i=0; i < stvector.count; i++){
+            char *child_name = stvector.data[i];
+            int child_path_length = path_length + 1 + strlen(child_name) +1; 
+            char child_path[child_path_length];
+            concat_path_nodename_n(child_path, child_path_length, queue->path, child_name);
+            int get_rc = zoo_get(queue->zh, child_path, 0, buffer, buffer_len, NULL);
+            switch(get_rc){
+                int delete_rc;
+            case ZOK:
+                delete_rc = zoo_delete(queue->zh, child_path, -1);
+                switch(delete_rc){
+                case ZOK:
+                    free_String_vector(vector);
+                    return delete_rc;
+                case ZNONODE:
+                    break;
+                default:
+                    free_String_vector(vector);
+                    *buffer_len = -1;
+                    return delete_rc;
+                }
+                break;
+            case ZNONODE:
+                break;
+            default:
+                free_String_vector(vector);
+                *buffer_len = -1;
+                return get_rc;
+            }
+        }
+        free_String_vector(vector);
+    }
+}
+
+/**
+ * The take_latch structure roughly emulates a Java CountdownLatch with 1 as the initial value.
+ * It is meant to be used by a setter thread and a waiter thread.
+ * 
+ * This latch is specialized to be used with the queue, all latches created for the same queue structure will use the same mutex.
+ *
+ * The setter thread at some point will call take_latch_setter_trigger_latch() on the thread.
+ *
+ * The waiter thread creates the latch and at some point either calls take_latch_waiter_await()s or take_latch_waiter_mark_unneeded()s it.
+ * The await function will return after the setter thread has triggered the latch.
+ * The mark unneeded function will return immediately and avoid some unneeded initialization.
+ *
+ * Whichever thread is last to call their required function disposes of the latch.
+ *
+ * The latch may disposed if no threads will call the waiting, marking, or triggering functions using take_latch_destroy_syncrhonized().
+ */
+
+struct take_latch {
+    enum take_state {take_init, take_waiting, take_triggered, take_not_needed} state;
+    pthread_cond_t latch_condition;
+    zkr_queue_t *queue;
+};
+
+
+typedef struct take_latch take_latch_t;  
+
+
+static void take_latch_init( take_latch_t *latch, zkr_queue_t *queue){
+    pthread_mutex_t *mutex = &(queue->pmutex);
+    pthread_mutex_lock(mutex);
+    latch->state = take_init;
+    latch->queue = queue;
+    pthread_mutex_unlock(mutex);
+}
+
+static take_latch_t *create_take_latch(zkr_queue_t *queue){
+    take_latch_t *new_take_latch = (take_latch_t *) malloc(sizeof(take_latch_t));
+    take_latch_init(new_take_latch, queue);
+    return new_take_latch;
+}
+
+
+//Only call this when you own the mutex
+static void take_latch_destroy_unsafe(take_latch_t *latch){
+    if(latch->state == take_waiting){
+        pthread_cond_destroy(&(latch->latch_condition));
+    }
+    free(latch);
+}
+
+static void take_latch_destroy_synchronized(take_latch_t *latch){
+    pthread_mutex_t *mutex = &(latch->queue->pmutex);
+    pthread_mutex_lock(mutex);
+    take_latch_destroy_unsafe(latch);
+    pthread_mutex_unlock(mutex);
+}
+
+static void take_latch_setter_trigger_latch(take_latch_t *latch){
+    pthread_mutex_t *mutex = &(latch->queue->pmutex);
+    pthread_mutex_lock(mutex);
+    switch(latch->state){
+    case take_init:
+        latch->state = take_triggered;
+        break;
+    case take_not_needed:
+        take_latch_destroy_unsafe(latch);
+        break;
+    case take_triggered:
+        LOG_DEBUG(("Error! Latch was triggered twice."));
+        break;
+    case take_waiting:
+        pthread_cond_signal(&(latch->latch_condition));
+        break;
+    }
+    pthread_mutex_unlock(mutex);
+}
+
+static void take_latch_waiter_await(take_latch_t *latch){
+    pthread_mutex_t *mutex = &(latch->queue->pmutex);
+    pthread_mutex_lock(mutex);
+    switch(latch->state){
+    case take_init:
+        pthread_cond_init(&(latch->latch_condition),NULL);
+        latch->state = take_waiting;
+        pthread_cond_wait(&(latch->latch_condition),mutex);
+        take_latch_destroy_unsafe(latch);
+        break;
+    case take_waiting:
+        LOG_DEBUG(("Error! Called await twice."));
+        break;
+    case take_not_needed:
+        LOG_DEBUG(("Error! Waiting after marking not needed."));
+        break;
+    case take_triggered:
+        take_latch_destroy_unsafe(latch);
+        break;
+    }
+    pthread_mutex_unlock(mutex);
+}
+
+static void take_latch_waiter_mark_unneeded(take_latch_t *latch){
+    pthread_mutex_t *mutex = &(latch->queue->pmutex);
+    pthread_mutex_lock(mutex);
+    switch(latch->state){
+    case take_init:
+        latch->state = take_not_needed;
+        break;
+    case take_waiting:
+        LOG_DEBUG(("Error! Can't mark unneeded after waiting."));
+        break;
+    case take_not_needed:
+        LOG_DEBUG(("Marked unneeded twice."));
+        break;
+    case take_triggered:
+        take_latch_destroy_unsafe(latch);
+        break;
+    }
+    pthread_mutex_unlock(mutex);
+}
+
+static void take_watcher(zhandle_t *zh, int type, int state, const char *path, void *watcherCtx){
+    take_latch_t *latch = (take_latch_t *) watcherCtx;
+    take_latch_setter_trigger_latch(latch);
+}
+
+
+
+ZOOAPI int zkr_queue_take(zkr_queue_t *queue, char *buffer, int *buffer_len){
+    int path_length = strlen(queue->path);
+take_attempt:    
+    for(;;){
+        struct String_vector stvector;
+        struct String_vector *vector = &stvector;
+        /*Get sorted children*/
+        take_latch_t *take_latch = create_take_latch(queue);
+        int get_children_rc = zoo_wget_children(queue->zh, queue->path, take_watcher, take_latch, &stvector);
+        switch(get_children_rc){
+        case ZOK:
+            break;
+            int create_queue_rc;
+        case ZNONODE:
+            take_latch_destroy_synchronized(take_latch);
+            create_queue_rc = create_queue_root(queue);
+            switch(create_queue_rc){
+            case ZNODEEXISTS:
+            case ZOK:
+                goto take_attempt;
+            default:
+                *buffer_len = -1;
+                return create_queue_rc;
+            }
+        default:
+            take_latch_destroy_synchronized(take_latch);
+            *buffer_len = -1;
+            return get_children_rc;
+        }
+        if(stvector.count == 0){
+            take_latch_waiter_await(take_latch);
+        }else{
+            take_latch_waiter_mark_unneeded(take_latch);
+        }
+
+        sort_children(vector);
+        /*try all*/
+        int i;
+        for( i=0; i < stvector.count; i++){
+            char *child_name = stvector.data[i];
+            int child_path_length = path_length + 1 + strlen(child_name) +1; 
+            char child_path[child_path_length];
+            concat_path_nodename_n(child_path, child_path_length, queue->path, child_name);
+            int get_rc = zoo_get(queue->zh, child_path, 0, buffer, buffer_len, NULL);
+            switch(get_rc){
+                int delete_rc;
+            case ZOK:
+                delete_rc = zoo_delete(queue->zh, child_path, -1);
+                switch(delete_rc){
+                case ZOK:
+                    free_String_vector(vector);
+                    return delete_rc;
+                case ZNONODE:
+                    break;
+                default:
+                    free_String_vector(vector);
+                    *buffer_len = -1;
+                    return delete_rc;
+                }
+                break;
+            case ZNONODE:
+                break;
+            default:
+                free_String_vector(vector);
+                *buffer_len = -1;
+                return get_rc;
+            }
+        }
+        free_String_vector(vector);
+    }
+}
+
+ZOOAPI void zkr_queue_destroy(zkr_queue_t *queue){
+    pthread_mutex_destroy(&(queue->pmutex));
+    if(queue->cached_create_path != NULL){
+        free(queue->cached_create_path);
+    }
+}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/queue/src/c/tests/TestClient.cc
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/queue/src/c/tests/TestClient.cc b/zookeeper-recipes/queue/src/c/tests/TestClient.cc
new file mode 100644
index 0000000..5446d9b
--- /dev/null
+++ b/zookeeper-recipes/queue/src/c/tests/TestClient.cc
@@ -0,0 +1,452 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <cppunit/extensions/HelperMacros.h>
+
+#include <pthread.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/select.h>
+#include <cppunit/TestAssert.h>
+
+
+using namespace std;
+
+#include <cstring>
+#include <list>
+
+#include <zookeeper.h>
+#include <zoo_queue.h>
+
+static void yield(zhandle_t *zh, int i)
+{
+    sleep(i);
+}
+
+typedef struct evt {
+    string path;
+    int type;
+} evt_t;
+
+typedef struct watchCtx {
+private:
+    list<evt_t> events;
+public:
+    bool connected;
+    zhandle_t *zh;
+    
+    watchCtx() {
+        connected = false;
+        zh = 0;
+    }
+    ~watchCtx() {
+        if (zh) {
+            zookeeper_close(zh);
+            zh = 0;
+        }
+    }
+
+    evt_t getEvent() {
+        evt_t evt;
+        evt = events.front();
+        events.pop_front();
+        return evt;
+    }
+
+    int countEvents() {
+        int count;
+        count = events.size();
+        return count;
+    }
+
+    void putEvent(evt_t evt) {
+        events.push_back(evt);
+    }
+
+    bool waitForConnected(zhandle_t *zh) {
+        time_t expires = time(0) + 10;
+        while(!connected && time(0) < expires) {
+            yield(zh, 1);
+        }
+        return connected;
+    }
+    bool waitForDisconnected(zhandle_t *zh) {
+        time_t expires = time(0) + 15;
+        while(connected && time(0) < expires) {
+            yield(zh, 1);
+        }
+        return !connected;
+    }
+} watchctx_t; 
+
+extern "C" {
+    
+    const char *thread_test_string="Hello World!";
+   
+    void *offer_thread_shared_queue(void *queue_handle){
+        zkr_queue_t *queue = (zkr_queue_t *) queue_handle;
+
+        int test_string_buffer_length = strlen(thread_test_string) + 1;
+        int offer_rc = zkr_queue_offer(queue, thread_test_string, test_string_buffer_length);
+        pthread_exit(NULL);
+    }
+    
+    void *take_thread_shared_queue(void *queue_handle){
+        zkr_queue_t *queue = (zkr_queue_t *) queue_handle;
+
+        int test_string_buffer_length = strlen(thread_test_string) + 1;
+        int receive_buffer_capacity = test_string_buffer_length;
+        int receive_buffer_length = receive_buffer_capacity;
+        char *receive_buffer = (char *) malloc(sizeof(char) * receive_buffer_capacity);
+
+        int remove_rc = zkr_queue_take(queue, receive_buffer, &receive_buffer_length);
+        switch(remove_rc){
+        case ZOK:
+            pthread_exit(receive_buffer);
+        default:
+            free(receive_buffer);
+            pthread_exit(NULL);
+        }
+    }
+    
+    int valid_test_string(void *result){
+        char *result_string = (char *) result;
+        return !strncmp(result_string, thread_test_string, strlen(thread_test_string));
+    }
+}
+
+class Zookeeper_queuetest : public CPPUNIT_NS::TestFixture
+{
+    CPPUNIT_TEST_SUITE(Zookeeper_queuetest);
+    CPPUNIT_TEST(testInitDestroy);
+    CPPUNIT_TEST(testOffer1);
+    CPPUNIT_TEST(testOfferRemove1);
+    CPPUNIT_TEST(testOfferRemove2);
+    CPPUNIT_TEST(testOfferRemove3);
+    CPPUNIT_TEST(testOfferRemove4);
+    CPPUNIT_TEST(testOfferRemove5);
+    CPPUNIT_TEST(testOfferRemove6);
+    CPPUNIT_TEST(testOfferTake1);
+    CPPUNIT_TEST(testOfferTake2);
+    CPPUNIT_TEST(testOfferTake3);
+    CPPUNIT_TEST(testOfferTake4);
+    CPPUNIT_TEST(testOfferTake5);
+    CPPUNIT_TEST(testOfferTake6);
+    CPPUNIT_TEST_SUITE_END();
+
+    static void watcher(zhandle_t *, int type, int state, const char *path,void*v){
+        watchctx_t *ctx = (watchctx_t*)v;
+
+        if (state == ZOO_CONNECTED_STATE) {
+            ctx->connected = true;
+        } else {
+            ctx->connected = false;
+        }
+        if (type != ZOO_SESSION_EVENT) {
+            evt_t evt;
+            evt.path = path;
+            evt.type = type;
+            ctx->putEvent(evt);
+        }
+    }
+
+    static const char hostPorts[];
+
+    const char *getHostPorts() {
+        return hostPorts;
+    }
+
+    zhandle_t *createClient(watchctx_t *ctx) {
+        zhandle_t *zk = zookeeper_init(hostPorts, watcher, 10000, 0,
+                                       ctx, 0);
+        ctx->zh = zk;
+        sleep(1);
+        return zk;
+    }
+    
+public:
+
+#define ZKSERVER_CMD "./tests/zkServer.sh"
+
+    void setUp()
+        {
+            char cmd[1024];
+            sprintf(cmd, "%s startClean %s", ZKSERVER_CMD, getHostPorts());
+            CPPUNIT_ASSERT(system(cmd) == 0);
+        }
+    
+
+    void startServer() {
+        char cmd[1024];
+        sprintf(cmd, "%s start %s", ZKSERVER_CMD, getHostPorts());
+        CPPUNIT_ASSERT(system(cmd) == 0);
+    }
+
+    void stopServer() {
+        tearDown();
+    }
+
+    void tearDown()
+        {
+            char cmd[1024];
+            sprintf(cmd, "%s stop %s", ZKSERVER_CMD, getHostPorts());
+            CPPUNIT_ASSERT(system(cmd) == 0);
+        }
+
+    void initializeQueuesAndHandles(int num_clients, zhandle_t *zoohandles[], 
+                                    watchctx_t ctxs[], zkr_queue_t queues[], char *path){
+        int i;
+        for(i=0; i< num_clients; i++){
+            zoohandles[i] = createClient(&ctxs[i]);
+            zkr_queue_init(&queues[i], zoohandles[i], path, &ZOO_OPEN_ACL_UNSAFE);
+        }
+    }
+
+    void cleanUpQueues(int num_clients, zkr_queue_t queues[]){
+        int i;
+        for(i=0; i < num_clients; i++){
+            zkr_queue_destroy(&queues[i]);
+        }
+    }
+
+    void testInitDestroy(){
+        int num_clients = 1;
+        watchctx_t ctxs[num_clients];
+        zhandle_t *zoohandles[num_clients];
+        zkr_queue_t queues[num_clients];
+        char *path= (char *)"/testInitDestroy";
+
+        int i;
+        for(i=0; i< num_clients; i++){
+            zoohandles[i] = createClient(&ctxs[i]);
+            zkr_queue_init(&queues[i], zoohandles[i], path, &ZOO_OPEN_ACL_UNSAFE);
+        }
+    
+        for(i=0; i< num_clients; i++){
+            zkr_queue_destroy(&queues[i]);
+        }
+    
+    }
+
+    void testOffer1(){
+        int num_clients = 1;
+        watchctx_t ctxs[num_clients];
+        zhandle_t *zoohandles[num_clients];
+        zkr_queue_t queues[num_clients];
+        char *path= (char *)"/testOffer1";
+
+        initializeQueuesAndHandles(num_clients, zoohandles, ctxs, queues, path);
+
+        const char *test_string="Hello World!";
+        int test_string_length = strlen(test_string);
+        int test_string_buffer_length = test_string_length + 1;
+        char buffer[test_string_buffer_length];
+
+        int offer_rc = zkr_queue_offer(&queues[0], test_string, test_string_buffer_length);
+        CPPUNIT_ASSERT(offer_rc == ZOK);
+
+        int removed_element_buffer_length = test_string_buffer_length;
+        int remove_rc = zkr_queue_remove(&queues[0], buffer, &removed_element_buffer_length);
+        CPPUNIT_ASSERT(remove_rc == ZOK);
+        CPPUNIT_ASSERT(removed_element_buffer_length == test_string_buffer_length);
+        CPPUNIT_ASSERT(strncmp(test_string,buffer,test_string_length)==0);
+
+        cleanUpQueues(num_clients,queues);
+    }
+
+    void create_n_remove_m(char *path, int n, int m){
+        int num_clients = 2;
+        watchctx_t ctxs[num_clients];
+        zhandle_t *zoohandles[num_clients];
+        zkr_queue_t queues[num_clients];
+    
+        initializeQueuesAndHandles(num_clients, zoohandles, ctxs, queues, path);
+
+        int i;
+        int max_digits = sizeof(int)*3;
+        const char *test_string = "Hello World!";
+        int buffer_length = strlen(test_string) + max_digits + 1;
+        char correct_buffer[buffer_length];
+        char receive_buffer[buffer_length];
+
+        for(i = 0; i < n; i++){
+            snprintf(correct_buffer, buffer_length, "%s%d", test_string,i);
+            int offer_rc = zkr_queue_offer(&queues[0], correct_buffer, buffer_length);
+            CPPUNIT_ASSERT(offer_rc == ZOK);
+        }
+        printf("Offers\n");
+        for(i=0; i<m ;i++){
+            snprintf(correct_buffer, buffer_length, "%s%d", test_string,i);
+            int receive_buffer_length=buffer_length;
+            int remove_rc = zkr_queue_remove(&queues[1], receive_buffer, &receive_buffer_length);
+            CPPUNIT_ASSERT(remove_rc == ZOK);
+            if(i >=n){
+                CPPUNIT_ASSERT(receive_buffer_length == -1);
+            }else{
+                CPPUNIT_ASSERT(strncmp(correct_buffer,receive_buffer, buffer_length)==0);
+            }
+        }
+
+        cleanUpQueues(num_clients,queues);
+    }
+
+    void testOfferRemove1(){
+        create_n_remove_m((char *)"/testOfferRemove1", 0,1);
+    }
+
+    void testOfferRemove2(){
+        create_n_remove_m((char *)"/testOfferRemove2", 1,1);
+    }
+
+    void testOfferRemove3(){
+        create_n_remove_m((char *)"/testOfferRemove3", 10,1);
+    }
+    
+    void testOfferRemove4(){
+        create_n_remove_m((char *)"/testOfferRemove4", 10,10);
+    }
+
+    void testOfferRemove5(){
+        create_n_remove_m((char *)"/testOfferRemove5", 10,5);
+    }
+
+    void testOfferRemove6(){
+        create_n_remove_m((char *)"/testOfferRemove6", 10,11);
+    }
+
+    void create_n_take_m(char *path, int n, int m){
+        CPPUNIT_ASSERT(m<=n);
+        int num_clients = 2;
+        watchctx_t ctxs[num_clients];
+        zhandle_t *zoohandles[num_clients];
+        zkr_queue_t queues[num_clients];
+    
+        initializeQueuesAndHandles(num_clients, zoohandles, ctxs, queues, path);
+
+        int i;
+        int max_digits = sizeof(int)*3;
+        const char *test_string = "Hello World!";
+        int buffer_length = strlen(test_string) + max_digits + 1;
+        char correct_buffer[buffer_length];
+        char receive_buffer[buffer_length];
+
+        for(i = 0; i < n; i++){
+            snprintf(correct_buffer, buffer_length, "%s%d", test_string,i);
+            int offer_rc = zkr_queue_offer(&queues[0], correct_buffer, buffer_length);
+            CPPUNIT_ASSERT(offer_rc == ZOK);
+        }
+        printf("Offers\n");
+        for(i=0; i<m ;i++){
+            snprintf(correct_buffer, buffer_length, "%s%d", test_string,i);
+            int receive_buffer_length=buffer_length;
+            int remove_rc = zkr_queue_take(&queues[1], receive_buffer, &receive_buffer_length);
+            CPPUNIT_ASSERT(remove_rc == ZOK);
+            if(i >=n){
+                CPPUNIT_ASSERT(receive_buffer_length == -1);
+            }else{
+                CPPUNIT_ASSERT(strncmp(correct_buffer,receive_buffer, buffer_length)==0);
+            }
+        }
+
+        cleanUpQueues(num_clients,queues);
+    }
+
+    void testOfferTake1(){
+        create_n_take_m((char *)"/testOfferTake1", 2,1);
+    }
+
+    void testOfferTake2(){
+        create_n_take_m((char *)"/testOfferTake2", 1,1);
+    }
+
+    void testOfferTake3(){
+        create_n_take_m((char *)"/testOfferTake3", 10,1);
+    }
+    
+    void testOfferTake4(){
+        create_n_take_m((char *)"/testOfferTake4", 10,10);
+    }
+
+    void testOfferTake5(){
+        create_n_take_m((char *)"/testOfferTake5", 10,5);
+    }
+
+    void testOfferTake6(){
+        create_n_take_m((char *)"/testOfferTake6", 12,11);
+    }
+
+    void testTakeThreaded(){
+        int num_clients = 1;
+        watchctx_t ctxs[num_clients];
+        zhandle_t *zoohandles[num_clients];
+        zkr_queue_t queues[num_clients];
+        char *path=(char *)"/testTakeThreaded";
+    
+        initializeQueuesAndHandles(num_clients, zoohandles, ctxs, queues, path);
+        pthread_t take_thread;
+
+        pthread_create(&take_thread, NULL, take_thread_shared_queue, (void *) &queues[0]);
+
+        usleep(1000);
+
+        pthread_t offer_thread;
+        pthread_create(&offer_thread, NULL, offer_thread_shared_queue, (void *) &queues[0]);
+        pthread_join(offer_thread, NULL);
+
+        void *take_thread_result;
+        pthread_join(take_thread, &take_thread_result);
+        CPPUNIT_ASSERT(take_thread_result != NULL);
+        CPPUNIT_ASSERT(valid_test_string(take_thread_result));
+
+        cleanUpQueues(num_clients,queues);
+    }
+
+    void testTakeThreaded2(){
+        int num_clients = 1;
+        watchctx_t ctxs[num_clients];
+        zhandle_t *zoohandles[num_clients];
+        zkr_queue_t queues[num_clients];
+        char *path=(char *)"/testTakeThreaded2";
+    
+        initializeQueuesAndHandles(num_clients, zoohandles, ctxs, queues, path);
+
+        int take_attempts;
+        int num_take_attempts = 2;
+        for(take_attempts=0; take_attempts < num_take_attempts; take_attempts++){ 
+            pthread_t take_thread;
+    
+            pthread_create(&take_thread, NULL, take_thread_shared_queue, (void *) &queues[0]);
+    
+            usleep(1000);
+    
+            pthread_t offer_thread;
+            pthread_create(&offer_thread, NULL, offer_thread_shared_queue, (void *) &queues[0]);
+            pthread_join(offer_thread, NULL);
+    
+            void *take_thread_result;
+            pthread_join(take_thread, &take_thread_result);
+            CPPUNIT_ASSERT(take_thread_result != NULL);
+            CPPUNIT_ASSERT(valid_test_string(take_thread_result));
+
+        }
+        cleanUpQueues(num_clients,queues);
+    }
+};
+
+const char Zookeeper_queuetest::hostPorts[] = "127.0.0.1:22181";
+CPPUNIT_TEST_SUITE_REGISTRATION(Zookeeper_queuetest);


[07/10] zookeeper git commit: ZOOKEEPER-3033: branch-3.4 - MAVEN MIGRATION - Step 1.2 - zk-recipes

Posted by an...@apache.org.
http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/queue/src/c/LICENSE
----------------------------------------------------------------------
diff --git a/src/recipes/queue/src/c/LICENSE b/src/recipes/queue/src/c/LICENSE
deleted file mode 100644
index d645695..0000000
--- a/src/recipes/queue/src/c/LICENSE
+++ /dev/null
@@ -1,202 +0,0 @@
-
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
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http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/queue/src/c/Makefile.am
----------------------------------------------------------------------
diff --git a/src/recipes/queue/src/c/Makefile.am b/src/recipes/queue/src/c/Makefile.am
deleted file mode 100644
index ecef3cc..0000000
--- a/src/recipes/queue/src/c/Makefile.am
+++ /dev/null
@@ -1,46 +0,0 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-include $(top_srcdir)/aminclude.am
-
-AM_CFLAGS = -Wall -fPIC -I${ZOOKEEPER_PATH}/include -I${ZOOKEEPER_PATH}/generated \
-  -I$(top_srcdir)/include -I/usr/include 
-AM_CPPFLAGS = -Wall -I${ZOOKEEPER_PATH}/include -I${ZOOKEEPER_PATH}/generated\
-  -I${top_srcdir}/include -I/usr/include
-EXTRA_DIST = LICENSE
-lib_LTLIBRARIES = libzooqueue.la
-libzooqueue_la_SOURCES = src/zoo_queue.c include/zoo_queue.h
-libzooqueue_la_CPPFLAGS = -DDLOPEN_MODULE
-libzooqueue_la_LDFLAGS = -version-info 0:1:0
-
-#run the tests now
-
-TEST_SOURCES = tests/TestDriver.cc tests/TestClient.cc tests/Util.cc 
-
-
-check_PROGRAMS = zkqueuetest
-nodist_zkqueuetest_SOURCES = ${TEST_SOURCES}
-zkqueuetest_LDADD =  ${ZOOKEEPER_LD} libzooqueue.la -lpthread  ${CPPUNIT_LIBS}
-zkqueuetest_CXXFLAGS = -DUSE_STATIC_LIB ${CPPUNIT_CFLAGS}
-
-run-check: check
-	./zkqueuetest ${TEST_OPTIONS}
-
-clean-local: clean-check
-	${RM} ${DX_CLEANFILES}
-
-clean-check:
-	${RM} ${nodist_zkqueuetest_OBJECTS} 

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/queue/src/c/README.txt
----------------------------------------------------------------------
diff --git a/src/recipes/queue/src/c/README.txt b/src/recipes/queue/src/c/README.txt
deleted file mode 100644
index 7ef253f..0000000
--- a/src/recipes/queue/src/c/README.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-                     Zookeeper C queue client library 
-
-
-INSTALLATION
-
-If you're building the client from a source checkout you need to
-follow the steps outlined below. If you're building from a release
-tar downloaded from Apache please skip to step 2.
-
-This recipe does not handle ZCONNECTIONLOSS. It will only work correctly once ZOOKEEPER-22 https://issues.apache.org/jira/browse/ZOOKEEPER-22 is resolved.
-
-1) make sure that you compile the main zookeeper c client library.
- 
-2) change directory to src/recipes/queue/src/c 
-    and do a "autoreconf -if" to bootstrap
-   autoconf, automake and libtool. Please make sure you have autoconf
-   version 2.59 or greater installed.
-3) do a "./configure [OPTIONS]" to generate the makefile. See INSTALL
-   for general information about running configure.
-
-4) do a "make" or "make install" to build the libraries and install them. 
-   Alternatively, you can also build and run a unit test suite (and
-   you probably should).  Please make sure you have cppunit-1.10.x or
-   higher installed before you execute step 4.  Once ./configure has
-   finished, do a "make run-check". It will build the libraries, build
-   the tests and run them.
-5) to generate doxygen documentation do a "make doxygen-doc". All
-   documentations will be placed to a new subfolder named docs. By
-   default only HTML documentation is generated.  For information on
-   other document formats please use "./configure --help"

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/queue/src/c/acinclude.m4
----------------------------------------------------------------------
diff --git a/src/recipes/queue/src/c/acinclude.m4 b/src/recipes/queue/src/c/acinclude.m4
deleted file mode 100644
index d0041d8..0000000
--- a/src/recipes/queue/src/c/acinclude.m4
+++ /dev/null
@@ -1,312 +0,0 @@
-# This file is part of Autoconf.                       -*- Autoconf -*-
-
-# Copyright (C) 2004 Oren Ben-Kiki
-# This file is distributed under the same terms as the Autoconf macro files.
-
-# Generate automatic documentation using Doxygen. Works in concert with the
-# aminclude.m4 file and a compatible doxygen configuration file. Defines the
-# following public macros:
-#
-# DX_???_FEATURE(ON|OFF) - control the default setting fo a Doxygen feature.
-# Supported features are 'DOXYGEN' itself, 'DOT' for generating graphics,
-# 'HTML' for plain HTML, 'CHM' for compressed HTML help (for MS users), 'CHI'
-# for generating a seperate .chi file by the .chm file, and 'MAN', 'RTF',
-# 'XML', 'PDF' and 'PS' for the appropriate output formats. The environment
-# variable DOXYGEN_PAPER_SIZE may be specified to override the default 'a4wide'
-# paper size.
-#
-# By default, HTML, PDF and PS documentation is generated as this seems to be
-# the most popular and portable combination. MAN pages created by Doxygen are
-# usually problematic, though by picking an appropriate subset and doing some
-# massaging they might be better than nothing. CHM and RTF are specific for MS
-# (note that you can't generate both HTML and CHM at the same time). The XML is
-# rather useless unless you apply specialized post-processing to it.
-#
-# The macro mainly controls the default state of the feature. The use can
-# override the default by specifying --enable or --disable. The macros ensure
-# that contradictory flags are not given (e.g., --enable-doxygen-html and
-# --enable-doxygen-chm, --enable-doxygen-anything with --disable-doxygen, etc.)
-# Finally, each feature will be automatically disabled (with a warning) if the
-# required programs are missing.
-#
-# Once all the feature defaults have been specified, call DX_INIT_DOXYGEN with
-# the following parameters: a one-word name for the project for use as a
-# filename base etc., an optional configuration file name (the default is
-# 'Doxyfile', the same as Doxygen's default), and an optional output directory
-# name (the default is 'doxygen-doc').
-
-## ----------##
-## Defaults. ##
-## ----------##
-
-DX_ENV=""
-AC_DEFUN([DX_FEATURE_doc],  ON)
-AC_DEFUN([DX_FEATURE_dot],  ON)
-AC_DEFUN([DX_FEATURE_man],  OFF)
-AC_DEFUN([DX_FEATURE_html], ON)
-AC_DEFUN([DX_FEATURE_chm],  OFF)
-AC_DEFUN([DX_FEATURE_chi],  OFF)
-AC_DEFUN([DX_FEATURE_rtf],  OFF)
-AC_DEFUN([DX_FEATURE_xml],  OFF)
-AC_DEFUN([DX_FEATURE_pdf],  ON)
-AC_DEFUN([DX_FEATURE_ps],   ON)
-
-## --------------- ##
-## Private macros. ##
-## --------------- ##
-
-# DX_ENV_APPEND(VARIABLE, VALUE)
-# ------------------------------
-# Append VARIABLE="VALUE" to DX_ENV for invoking doxygen.
-AC_DEFUN([DX_ENV_APPEND], [AC_SUBST([DX_ENV], ["$DX_ENV $1='$2'"])])
-
-# DX_DIRNAME_EXPR
-# ---------------
-# Expand into a shell expression prints the directory part of a path.
-AC_DEFUN([DX_DIRNAME_EXPR],
-         [[expr ".$1" : '\(\.\)[^/]*$' \| "x$1" : 'x\(.*\)/[^/]*$']])
-
-# DX_IF_FEATURE(FEATURE, IF-ON, IF-OFF)
-# -------------------------------------
-# Expands according to the M4 (static) status of the feature.
-AC_DEFUN([DX_IF_FEATURE], [ifelse(DX_FEATURE_$1, ON, [$2], [$3])])
-
-# DX_REQUIRE_PROG(VARIABLE, PROGRAM)
-# ----------------------------------
-# Require the specified program to be found for the DX_CURRENT_FEATURE to work.
-AC_DEFUN([DX_REQUIRE_PROG], [
-AC_PATH_TOOL([$1], [$2])
-if test "$DX_FLAG_$[DX_CURRENT_FEATURE$$1]" = 1; then
-    AC_MSG_WARN([$2 not found - will not DX_CURRENT_DESCRIPTION])
-    AC_SUBST([DX_FLAG_]DX_CURRENT_FEATURE, 0)
-fi
-])
-
-# DX_TEST_FEATURE(FEATURE)
-# ------------------------
-# Expand to a shell expression testing whether the feature is active.
-AC_DEFUN([DX_TEST_FEATURE], [test "$DX_FLAG_$1" = 1])
-
-# DX_CHECK_DEPEND(REQUIRED_FEATURE, REQUIRED_STATE)
-# -------------------------------------------------
-# Verify that a required features has the right state before trying to turn on
-# the DX_CURRENT_FEATURE.
-AC_DEFUN([DX_CHECK_DEPEND], [
-test "$DX_FLAG_$1" = "$2" \
-|| AC_MSG_ERROR([doxygen-DX_CURRENT_FEATURE ifelse([$2], 1,
-                            requires, contradicts) doxygen-DX_CURRENT_FEATURE])
-])
-
-# DX_CLEAR_DEPEND(FEATURE, REQUIRED_FEATURE, REQUIRED_STATE)
-# ----------------------------------------------------------
-# Turn off the DX_CURRENT_FEATURE if the required feature is off.
-AC_DEFUN([DX_CLEAR_DEPEND], [
-test "$DX_FLAG_$1" = "$2" || AC_SUBST([DX_FLAG_]DX_CURRENT_FEATURE, 0)
-])
-
-# DX_FEATURE_ARG(FEATURE, DESCRIPTION,
-#                CHECK_DEPEND, CLEAR_DEPEND,
-#                REQUIRE, DO-IF-ON, DO-IF-OFF)
-# --------------------------------------------
-# Parse the command-line option controlling a feature. CHECK_DEPEND is called
-# if the user explicitly turns the feature on (and invokes DX_CHECK_DEPEND),
-# otherwise CLEAR_DEPEND is called to turn off the default state if a required
-# feature is disabled (using DX_CLEAR_DEPEND). REQUIRE performs additional
-# requirement tests (DX_REQUIRE_PROG). Finally, an automake flag is set and
-# DO-IF-ON or DO-IF-OFF are called according to the final state of the feature.
-AC_DEFUN([DX_ARG_ABLE], [
-    AC_DEFUN([DX_CURRENT_FEATURE], [$1])
-    AC_DEFUN([DX_CURRENT_DESCRIPTION], [$2])
-    AC_ARG_ENABLE(doxygen-$1,
-                  [AS_HELP_STRING(DX_IF_FEATURE([$1], [--disable-doxygen-$1],
-                                                      [--enable-doxygen-$1]),
-                                  DX_IF_FEATURE([$1], [don't $2], [$2]))],
-                  [
-case "$enableval" in
-#(
-y|Y|yes|Yes|YES)
-    AC_SUBST([DX_FLAG_$1], 1)
-    $3
-;; #(
-n|N|no|No|NO)
-    AC_SUBST([DX_FLAG_$1], 0)
-;; #(
-*)
-    AC_MSG_ERROR([invalid value '$enableval' given to doxygen-$1])
-;;
-esac
-], [
-AC_SUBST([DX_FLAG_$1], [DX_IF_FEATURE([$1], 1, 0)])
-$4
-])
-if DX_TEST_FEATURE([$1]); then
-    $5
-    :
-fi
-if DX_TEST_FEATURE([$1]); then
-    AM_CONDITIONAL(DX_COND_$1, :)
-    $6
-    :
-else
-    AM_CONDITIONAL(DX_COND_$1, false)
-    $7
-    :
-fi
-])
-
-## -------------- ##
-## Public macros. ##
-## -------------- ##
-
-# DX_XXX_FEATURE(DEFAULT_STATE)
-# -----------------------------
-AC_DEFUN([DX_DOXYGEN_FEATURE], [AC_DEFUN([DX_FEATURE_doc],  [$1])])
-AC_DEFUN([DX_MAN_FEATURE],     [AC_DEFUN([DX_FEATURE_man],  [$1])])
-AC_DEFUN([DX_HTML_FEATURE],    [AC_DEFUN([DX_FEATURE_html], [$1])])
-AC_DEFUN([DX_CHM_FEATURE],     [AC_DEFUN([DX_FEATURE_chm],  [$1])])
-AC_DEFUN([DX_CHI_FEATURE],     [AC_DEFUN([DX_FEATURE_chi],  [$1])])
-AC_DEFUN([DX_RTF_FEATURE],     [AC_DEFUN([DX_FEATURE_rtf],  [$1])])
-AC_DEFUN([DX_XML_FEATURE],     [AC_DEFUN([DX_FEATURE_xml],  [$1])])
-AC_DEFUN([DX_XML_FEATURE],     [AC_DEFUN([DX_FEATURE_xml],  [$1])])
-AC_DEFUN([DX_PDF_FEATURE],     [AC_DEFUN([DX_FEATURE_pdf],  [$1])])
-AC_DEFUN([DX_PS_FEATURE],      [AC_DEFUN([DX_FEATURE_ps],   [$1])])
-
-# DX_INIT_DOXYGEN(PROJECT, [CONFIG-FILE], [OUTPUT-DOC-DIR])
-# ---------------------------------------------------------
-# PROJECT also serves as the base name for the documentation files.
-# The default CONFIG-FILE is "Doxyfile" and OUTPUT-DOC-DIR is "doxygen-doc".
-AC_DEFUN([DX_INIT_DOXYGEN], [
-
-# Files:
-AC_SUBST([DX_PROJECT], [$1])
-AC_SUBST([DX_CONFIG], [ifelse([$2], [], Doxyfile, [$2])])
-AC_SUBST([DX_DOCDIR], [ifelse([$3], [], doxygen-doc, [$3])])
-
-# Environment variables used inside doxygen.cfg:
-DX_ENV_APPEND(SRCDIR, $srcdir)
-DX_ENV_APPEND(PROJECT, $DX_PROJECT)
-DX_ENV_APPEND(DOCDIR, $DX_DOCDIR)
-DX_ENV_APPEND(VERSION, $PACKAGE_VERSION)
-
-# Doxygen itself:
-DX_ARG_ABLE(doc, [generate any doxygen documentation],
-            [],
-            [],
-            [DX_REQUIRE_PROG([DX_DOXYGEN], doxygen)
-             DX_REQUIRE_PROG([DX_PERL], perl)],
-            [DX_ENV_APPEND(PERL_PATH, $DX_PERL)])
-
-# Dot for graphics:
-DX_ARG_ABLE(dot, [generate graphics for doxygen documentation],
-            [DX_CHECK_DEPEND(doc, 1)],
-            [DX_CLEAR_DEPEND(doc, 1)],
-            [DX_REQUIRE_PROG([DX_DOT], dot)],
-            [DX_ENV_APPEND(HAVE_DOT, YES)
-             DX_ENV_APPEND(DOT_PATH, [`DX_DIRNAME_EXPR($DX_DOT)`])],
-            [DX_ENV_APPEND(HAVE_DOT, NO)])
-
-# Man pages generation:
-DX_ARG_ABLE(man, [generate doxygen manual pages],
-            [DX_CHECK_DEPEND(doc, 1)],
-            [DX_CLEAR_DEPEND(doc, 1)],
-            [],
-            [DX_ENV_APPEND(GENERATE_MAN, YES)],
-            [DX_ENV_APPEND(GENERATE_MAN, NO)])
-
-# RTF file generation:
-DX_ARG_ABLE(rtf, [generate doxygen RTF documentation],
-            [DX_CHECK_DEPEND(doc, 1)],
-            [DX_CLEAR_DEPEND(doc, 1)],
-            [],
-            [DX_ENV_APPEND(GENERATE_RTF, YES)],
-            [DX_ENV_APPEND(GENERATE_RTF, NO)])
-
-# XML file generation:
-DX_ARG_ABLE(xml, [generate doxygen XML documentation],
-            [DX_CHECK_DEPEND(doc, 1)],
-            [DX_CLEAR_DEPEND(doc, 1)],
-            [],
-            [DX_ENV_APPEND(GENERATE_XML, YES)],
-            [DX_ENV_APPEND(GENERATE_XML, NO)])
-
-# (Compressed) HTML help generation:
-DX_ARG_ABLE(chm, [generate doxygen compressed HTML help documentation],
-            [DX_CHECK_DEPEND(doc, 1)],
-            [DX_CLEAR_DEPEND(doc, 1)],
-            [DX_REQUIRE_PROG([DX_HHC], hhc)],
-            [DX_ENV_APPEND(HHC_PATH, $DX_HHC)
-             DX_ENV_APPEND(GENERATE_HTML, YES)
-             DX_ENV_APPEND(GENERATE_HTMLHELP, YES)],
-            [DX_ENV_APPEND(GENERATE_HTMLHELP, NO)])
-
-# Seperate CHI file generation.
-DX_ARG_ABLE(chi, [generate doxygen seperate compressed HTML help index file],
-            [DX_CHECK_DEPEND(chm, 1)],
-            [DX_CLEAR_DEPEND(chm, 1)],
-            [],
-            [DX_ENV_APPEND(GENERATE_CHI, YES)],
-            [DX_ENV_APPEND(GENERATE_CHI, NO)])
-
-# Plain HTML pages generation:
-DX_ARG_ABLE(html, [generate doxygen plain HTML documentation],
-            [DX_CHECK_DEPEND(doc, 1) DX_CHECK_DEPEND(chm, 0)],
-            [DX_CLEAR_DEPEND(doc, 1) DX_CLEAR_DEPEND(chm, 0)],
-            [],
-            [DX_ENV_APPEND(GENERATE_HTML, YES)],
-            [DX_TEST_FEATURE(chm) || DX_ENV_APPEND(GENERATE_HTML, NO)])
-
-# PostScript file generation:
-DX_ARG_ABLE(ps, [generate doxygen PostScript documentation],
-            [DX_CHECK_DEPEND(doc, 1)],
-            [DX_CLEAR_DEPEND(doc, 1)],
-            [DX_REQUIRE_PROG([DX_LATEX], latex)
-             DX_REQUIRE_PROG([DX_MAKEINDEX], makeindex)
-             DX_REQUIRE_PROG([DX_DVIPS], dvips)
-             DX_REQUIRE_PROG([DX_EGREP], egrep)])
-
-# PDF file generation:
-DX_ARG_ABLE(pdf, [generate doxygen PDF documentation],
-            [DX_CHECK_DEPEND(doc, 1)],
-            [DX_CLEAR_DEPEND(doc, 1)],
-            [DX_REQUIRE_PROG([DX_PDFLATEX], pdflatex)
-             DX_REQUIRE_PROG([DX_MAKEINDEX], makeindex)
-             DX_REQUIRE_PROG([DX_EGREP], egrep)])
-
-# LaTeX generation for PS and/or PDF:
-if DX_TEST_FEATURE(ps) || DX_TEST_FEATURE(pdf); then
-    AM_CONDITIONAL(DX_COND_latex, :)
-    DX_ENV_APPEND(GENERATE_LATEX, YES)
-else
-    AM_CONDITIONAL(DX_COND_latex, false)
-    DX_ENV_APPEND(GENERATE_LATEX, NO)
-fi
-
-# Paper size for PS and/or PDF:
-AC_ARG_VAR(DOXYGEN_PAPER_SIZE,
-           [a4wide (default), a4, letter, legal or executive])
-case "$DOXYGEN_PAPER_SIZE" in
-#(
-"")
-    AC_SUBST(DOXYGEN_PAPER_SIZE, "")
-;; #(
-a4wide|a4|letter|legal|executive)
-    DX_ENV_APPEND(PAPER_SIZE, $DOXYGEN_PAPER_SIZE)
-;; #(
-*)
-    AC_MSG_ERROR([unknown DOXYGEN_PAPER_SIZE='$DOXYGEN_PAPER_SIZE'])
-;;
-esac
-
-#For debugging:
-#echo DX_FLAG_doc=$DX_FLAG_doc
-#echo DX_FLAG_dot=$DX_FLAG_dot
-#echo DX_FLAG_man=$DX_FLAG_man
-#echo DX_FLAG_html=$DX_FLAG_html
-#echo DX_FLAG_chm=$DX_FLAG_chm
-#echo DX_FLAG_chi=$DX_FLAG_chi
-#echo DX_FLAG_rtf=$DX_FLAG_rtf
-#echo DX_FLAG_xml=$DX_FLAG_xml
-#echo DX_FLAG_pdf=$DX_FLAG_pdf
-#echo DX_FLAG_ps=$DX_FLAG_ps
-#echo DX_ENV=$DX_ENV
-])

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/queue/src/c/aminclude.am
----------------------------------------------------------------------
diff --git a/src/recipes/queue/src/c/aminclude.am b/src/recipes/queue/src/c/aminclude.am
deleted file mode 100644
index 420049e..0000000
--- a/src/recipes/queue/src/c/aminclude.am
+++ /dev/null
@@ -1,186 +0,0 @@
-# Copyright (C) 2004 Oren Ben-Kiki
-# This file is distributed under the same terms as the Automake macro files.
-
-# Generate automatic documentation using Doxygen. Goals and variables values
-# are controlled by the various DX_COND_??? conditionals set by autoconf.
-#
-# The provided goals are:
-# doxygen-doc: Generate all doxygen documentation.
-# doxygen-run: Run doxygen, which will generate some of the documentation
-#              (HTML, CHM, CHI, MAN, RTF, XML) but will not do the post
-#              processing required for the rest of it (PS, PDF, and some MAN).
-# doxygen-man: Rename some doxygen generated man pages.
-# doxygen-ps: Generate doxygen PostScript documentation.
-# doxygen-pdf: Generate doxygen PDF documentation.
-#
-# Note that by default these are not integrated into the automake goals. If
-# doxygen is used to generate man pages, you can achieve this integration by
-# setting man3_MANS to the list of man pages generated and then adding the
-# dependency:
-#
-#   $(man3_MANS): doxygen-doc
-#
-# This will cause make to run doxygen and generate all the documentation.
-#
-# The following variable is intended for use in Makefile.am:
-#
-# DX_CLEANFILES = everything to clean.
-#
-# This is usually added to MOSTLYCLEANFILES.
-
-## --------------------------------- ##
-## Format-independent Doxygen rules. ##
-## --------------------------------- ##
-
-if DX_COND_doc
-
-## ------------------------------- ##
-## Rules specific for HTML output. ##
-## ------------------------------- ##
-
-if DX_COND_html
-
-DX_CLEAN_HTML = @DX_DOCDIR@/html
-
-endif DX_COND_html
-
-## ------------------------------ ##
-## Rules specific for CHM output. ##
-## ------------------------------ ##
-
-if DX_COND_chm
-
-DX_CLEAN_CHM = @DX_DOCDIR@/chm
-
-if DX_COND_chi
-
-DX_CLEAN_CHI = @DX_DOCDIR@/@PACKAGE@.chi
-
-endif DX_COND_chi
-
-endif DX_COND_chm
-
-## ------------------------------ ##
-## Rules specific for MAN output. ##
-## ------------------------------ ##
-
-if DX_COND_man
-
-DX_CLEAN_MAN = @DX_DOCDIR@/man
-
-endif DX_COND_man
-
-## ------------------------------ ##
-## Rules specific for RTF output. ##
-## ------------------------------ ##
-
-if DX_COND_rtf
-
-DX_CLEAN_RTF = @DX_DOCDIR@/rtf
-
-endif DX_COND_rtf
-
-## ------------------------------ ##
-## Rules specific for XML output. ##
-## ------------------------------ ##
-
-if DX_COND_xml
-
-DX_CLEAN_XML = @DX_DOCDIR@/xml
-
-endif DX_COND_xml
-
-## ----------------------------- ##
-## Rules specific for PS output. ##
-## ----------------------------- ##
-
-if DX_COND_ps
-
-DX_CLEAN_PS = @DX_DOCDIR@/@PACKAGE@.ps
-
-DX_PS_GOAL = doxygen-ps
-
-doxygen-ps: @DX_DOCDIR@/@PACKAGE@.ps
-
-@DX_DOCDIR@/@PACKAGE@.ps: @DX_DOCDIR@/@PACKAGE@.tag
-	cd @DX_DOCDIR@/latex; \
-	rm -f *.aux *.toc *.idx *.ind *.ilg *.log *.out; \
-	$(DX_LATEX) refman.tex; \
-	$(MAKEINDEX_PATH) refman.idx; \
-	$(DX_LATEX) refman.tex; \
-	countdown=5; \
-	while $(DX_EGREP) 'Rerun (LaTeX|to get cross-references right)' \
-	                  refman.log > /dev/null 2>&1 \
-	   && test $$countdown -gt 0; do \
-	    $(DX_LATEX) refman.tex; \
-	    countdown=`expr $$countdown - 1`; \
-	done; \
-	$(DX_DVIPS) -o ../@PACKAGE@.ps refman.dvi
-
-endif DX_COND_ps
-
-## ------------------------------ ##
-## Rules specific for PDF output. ##
-## ------------------------------ ##
-
-if DX_COND_pdf
-
-DX_CLEAN_PDF = @DX_DOCDIR@/@PACKAGE@.pdf
-
-DX_PDF_GOAL = doxygen-pdf
-
-doxygen-pdf: @DX_DOCDIR@/@PACKAGE@.pdf
-
-@DX_DOCDIR@/@PACKAGE@.pdf: @DX_DOCDIR@/@PACKAGE@.tag
-	cd @DX_DOCDIR@/latex; \
-	rm -f *.aux *.toc *.idx *.ind *.ilg *.log *.out; \
-	$(DX_PDFLATEX) refman.tex; \
-	$(DX_MAKEINDEX) refman.idx; \
-	$(DX_PDFLATEX) refman.tex; \
-	countdown=5; \
-	while $(DX_EGREP) 'Rerun (LaTeX|to get cross-references right)' \
-	                  refman.log > /dev/null 2>&1 \
-	   && test $$countdown -gt 0; do \
-	    $(DX_PDFLATEX) refman.tex; \
-	    countdown=`expr $$countdown - 1`; \
-	done; \
-	mv refman.pdf ../@PACKAGE@.pdf
-
-endif DX_COND_pdf
-
-## ------------------------------------------------- ##
-## Rules specific for LaTeX (shared for PS and PDF). ##
-## ------------------------------------------------- ##
-
-if DX_COND_latex
-
-DX_CLEAN_LATEX = @DX_DOCDIR@/latex
-
-endif DX_COND_latex
-
-.PHONY: doxygen-run doxygen-doc $(DX_PS_GOAL) $(DX_PDF_GOAL)
-
-.INTERMEDIATE: doxygen-run $(DX_PS_GOAL) $(DX_PDF_GOAL)
-
-doxygen-run: @DX_DOCDIR@/@PACKAGE@.tag
-
-doxygen-doc: doxygen-run $(DX_PS_GOAL) $(DX_PDF_GOAL)
-
-@DX_DOCDIR@/@PACKAGE@.tag: $(DX_CONFIG) $(pkginclude_HEADERS)
-	rm -rf @DX_DOCDIR@
-	$(DX_ENV) $(DX_DOXYGEN) $(srcdir)/$(DX_CONFIG)
-
-DX_CLEANFILES = \
-    @DX_DOCDIR@/@PACKAGE@.tag \
-    -r \
-    $(DX_CLEAN_HTML) \
-    $(DX_CLEAN_CHM) \
-    $(DX_CLEAN_CHI) \
-    $(DX_CLEAN_MAN) \
-    $(DX_CLEAN_RTF) \
-    $(DX_CLEAN_XML) \
-    $(DX_CLEAN_PS) \
-    $(DX_CLEAN_PDF) \
-    $(DX_CLEAN_LATEX)
-
-endif DX_COND_doc

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/queue/src/c/c-doc.Doxyfile
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diff --git a/src/recipes/queue/src/c/c-doc.Doxyfile b/src/recipes/queue/src/c/c-doc.Doxyfile
deleted file mode 100644
index 32e09a1..0000000
--- a/src/recipes/queue/src/c/c-doc.Doxyfile
+++ /dev/null
@@ -1,1252 +0,0 @@
-# Doxyfile 1.4.7
-
-# This file describes the settings to be used by the documentation system
-# doxygen (www.doxygen.org) for a project
-#
-# All text after a hash (#) is considered a comment and will be ignored
-# The format is:
-#       TAG = value [value, ...]
-# For lists items can also be appended using:
-#       TAG += value [value, ...]
-# Values that contain spaces should be placed between quotes (" ")
-
-#---------------------------------------------------------------------------
-# Project related configuration options
-#---------------------------------------------------------------------------
-
-# The PROJECT_NAME tag is a single word (or a sequence of words surrounded 
-# by quotes) that should identify the project.
-
-PROJECT_NAME = $(PROJECT)-$(VERSION)
-
-# The PROJECT_NUMBER tag can be used to enter a project or revision number. 
-# This could be handy for archiving the generated documentation or 
-# if some version control system is used.
-
-PROJECT_NUMBER = 
-
-# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) 
-# base path where the generated documentation will be put. 
-# If a relative path is entered, it will be relative to the location 
-# where doxygen was started. If left blank the current directory will be used.
-
-OUTPUT_DIRECTORY = $(DOCDIR)
-
-# If the CREATE_SUBDIRS tag is set to YES, then doxygen will create 
-# 4096 sub-directories (in 2 levels) under the output directory of each output 
-# format and will distribute the generated files over these directories. 
-# Enabling this option can be useful when feeding doxygen a huge amount of 
-# source files, where putting all generated files in the same directory would 
-# otherwise cause performance problems for the file system.
-
-CREATE_SUBDIRS = NO
-
-# The OUTPUT_LANGUAGE tag is used to specify the language in which all 
-# documentation generated by doxygen is written. Doxygen will use this 
-# information to generate all constant output in the proper language. 
-# The default language is English, other supported languages are: 
-# Brazilian, Catalan, Chinese, Chinese-Traditional, Croatian, Czech, Danish, 
-# Dutch, Finnish, French, German, Greek, Hungarian, Italian, Japanese, 
-# Japanese-en (Japanese with English messages), Korean, Korean-en, Norwegian, 
-# Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Slovene, Spanish, 
-# Swedish, and Ukrainian.
-
-OUTPUT_LANGUAGE = English
-
-# This tag can be used to specify the encoding used in the generated output. 
-# The encoding is not always determined by the language that is chosen, 
-# but also whether or not the output is meant for Windows or non-Windows users. 
-# In case there is a difference, setting the USE_WINDOWS_ENCODING tag to YES 
-# forces the Windows encoding (this is the default for the Windows binary), 
-# whereas setting the tag to NO uses a Unix-style encoding (the default for 
-# all platforms other than Windows).
-
-USE_WINDOWS_ENCODING = NO
-
-# If the BRIEF_MEMBER_DESC tag is set to YES (the default) Doxygen will 
-# include brief member descriptions after the members that are listed in 
-# the file and class documentation (similar to JavaDoc). 
-# Set to NO to disable this.
-
-BRIEF_MEMBER_DESC = YES
-
-# If the REPEAT_BRIEF tag is set to YES (the default) Doxygen will prepend 
-# the brief description of a member or function before the detailed description. 
-# Note: if both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the 
-# brief descriptions will be completely suppressed.
-
-REPEAT_BRIEF = YES
-
-# This tag implements a quasi-intelligent brief description abbreviator 
-# that is used to form the text in various listings. Each string 
-# in this list, if found as the leading text of the brief description, will be 
-# stripped from the text and the result after processing the whole list, is 
-# used as the annotated text. Otherwise, the brief description is used as-is. 
-# If left blank, the following values are used ("$name" is automatically 
-# replaced with the name of the entity): "The $name class" "The $name widget" 
-# "The $name file" "is" "provides" "specifies" "contains" 
-# "represents" "a" "an" "the"
-
-ABBREVIATE_BRIEF = 
-
-# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then 
-# Doxygen will generate a detailed section even if there is only a brief 
-# description.
-
-ALWAYS_DETAILED_SEC = NO
-
-# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all 
-# inherited members of a class in the documentation of that class as if those 
-# members were ordinary class members. Constructors, destructors and assignment 
-# operators of the base classes will not be shown.
-
-INLINE_INHERITED_MEMB = NO
-
-# If the FULL_PATH_NAMES tag is set to YES then Doxygen will prepend the full 
-# path before files name in the file list and in the header files. If set 
-# to NO the shortest path that makes the file name unique will be used.
-
-FULL_PATH_NAMES = YES
-
-# If the FULL_PATH_NAMES tag is set to YES then the STRIP_FROM_PATH tag 
-# can be used to strip a user-defined part of the path. Stripping is 
-# only done if one of the specified strings matches the left-hand part of 
-# the path. The tag can be used to show relative paths in the file list. 
-# If left blank the directory from which doxygen is run is used as the 
-# path to strip.
-
-STRIP_FROM_PATH = 
-
-# The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of 
-# the path mentioned in the documentation of a class, which tells 
-# the reader which header file to include in order to use a class. 
-# If left blank only the name of the header file containing the class 
-# definition is used. Otherwise one should specify the include paths that 
-# are normally passed to the compiler using the -I flag.
-
-STRIP_FROM_INC_PATH = 
-
-# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter 
-# (but less readable) file names. This can be useful is your file systems 
-# doesn't support long names like on DOS, Mac, or CD-ROM.
-
-SHORT_NAMES = NO
-
-# If the JAVADOC_AUTOBRIEF tag is set to YES then Doxygen 
-# will interpret the first line (until the first dot) of a JavaDoc-style 
-# comment as the brief description. If set to NO, the JavaDoc 
-# comments will behave just like the Qt-style comments (thus requiring an 
-# explicit @brief command for a brief description.
-
-JAVADOC_AUTOBRIEF = NO
-
-# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make Doxygen 
-# treat a multi-line C++ special comment block (i.e. a block of //! or /// 
-# comments) as a brief description. This used to be the default behaviour. 
-# The new default is to treat a multi-line C++ comment block as a detailed 
-# description. Set this tag to YES if you prefer the old behaviour instead.
-
-MULTILINE_CPP_IS_BRIEF = NO
-
-# If the DETAILS_AT_TOP tag is set to YES then Doxygen 
-# will output the detailed description near the top, like JavaDoc.
-# If set to NO, the detailed description appears after the member 
-# documentation.
-
-DETAILS_AT_TOP = NO
-
-# If the INHERIT_DOCS tag is set to YES (the default) then an undocumented 
-# member inherits the documentation from any documented member that it 
-# re-implements.
-
-INHERIT_DOCS = YES
-
-# If the SEPARATE_MEMBER_PAGES tag is set to YES, then doxygen will produce 
-# a new page for each member. If set to NO, the documentation of a member will 
-# be part of the file/class/namespace that contains it.
-
-SEPARATE_MEMBER_PAGES = NO
-
-# The TAB_SIZE tag can be used to set the number of spaces in a tab. 
-# Doxygen uses this value to replace tabs by spaces in code fragments.
-
-TAB_SIZE = 8
-
-# This tag can be used to specify a number of aliases that acts 
-# as commands in the documentation. An alias has the form "name=value". 
-# For example adding "sideeffect=\par Side Effects:\n" will allow you to 
-# put the command \sideeffect (or @sideeffect) in the documentation, which 
-# will result in a user-defined paragraph with heading "Side Effects:". 
-# You can put \n's in the value part of an alias to insert newlines.
-
-ALIASES = 
-
-# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C 
-# sources only. Doxygen will then generate output that is more tailored for C. 
-# For instance, some of the names that are used will be different. The list 
-# of all members will be omitted, etc.
-
-OPTIMIZE_OUTPUT_FOR_C = YES
-
-# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java 
-# sources only. Doxygen will then generate output that is more tailored for Java. 
-# For instance, namespaces will be presented as packages, qualified scopes 
-# will look different, etc.
-
-OPTIMIZE_OUTPUT_JAVA = NO
-
-# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want to 
-# include (a tag file for) the STL sources as input, then you should 
-# set this tag to YES in order to let doxygen match functions declarations and 
-# definitions whose arguments contain STL classes (e.g. func(std::string); v.s. 
-# func(std::string) {}). This also make the inheritance and collaboration 
-# diagrams that involve STL classes more complete and accurate.
-
-BUILTIN_STL_SUPPORT = NO
-
-# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC 
-# tag is set to YES, then doxygen will reuse the documentation of the first 
-# member in the group (if any) for the other members of the group. By default 
-# all members of a group must be documented explicitly.
-
-DISTRIBUTE_GROUP_DOC = NO
-
-# Set the SUBGROUPING tag to YES (the default) to allow class member groups of 
-# the same type (for instance a group of public functions) to be put as a 
-# subgroup of that type (e.g. under the Public Functions section). Set it to 
-# NO to prevent subgrouping. Alternatively, this can be done per class using 
-# the \nosubgrouping command.
-
-SUBGROUPING = YES
-
-#---------------------------------------------------------------------------
-# Build related configuration options
-#---------------------------------------------------------------------------
-
-# If the EXTRACT_ALL tag is set to YES doxygen will assume all entities in 
-# documentation are documented, even if no documentation was available. 
-# Private class members and static file members will be hidden unless 
-# the EXTRACT_PRIVATE and EXTRACT_STATIC tags are set to YES
-
-EXTRACT_ALL = NO
-
-# If the EXTRACT_PRIVATE tag is set to YES all private members of a class 
-# will be included in the documentation.
-
-EXTRACT_PRIVATE = NO
-
-# If the EXTRACT_STATIC tag is set to YES all static members of a file 
-# will be included in the documentation.
-
-EXTRACT_STATIC = YES
-
-# If the EXTRACT_LOCAL_CLASSES tag is set to YES classes (and structs) 
-# defined locally in source files will be included in the documentation. 
-# If set to NO only classes defined in header files are included.
-
-EXTRACT_LOCAL_CLASSES = YES
-
-# This flag is only useful for Objective-C code. When set to YES local 
-# methods, which are defined in the implementation section but not in 
-# the interface are included in the documentation. 
-# If set to NO (the default) only methods in the interface are included.
-
-EXTRACT_LOCAL_METHODS = NO
-
-# If the HIDE_UNDOC_MEMBERS tag is set to YES, Doxygen will hide all 
-# undocumented members of documented classes, files or namespaces. 
-# If set to NO (the default) these members will be included in the 
-# various overviews, but no documentation section is generated. 
-# This option has no effect if EXTRACT_ALL is enabled.
-
-HIDE_UNDOC_MEMBERS = NO
-
-# If the HIDE_UNDOC_CLASSES tag is set to YES, Doxygen will hide all 
-# undocumented classes that are normally visible in the class hierarchy. 
-# If set to NO (the default) these classes will be included in the various 
-# overviews. This option has no effect if EXTRACT_ALL is enabled.
-
-HIDE_UNDOC_CLASSES = NO
-
-# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, Doxygen will hide all 
-# friend (class|struct|union) declarations. 
-# If set to NO (the default) these declarations will be included in the 
-# documentation.
-
-HIDE_FRIEND_COMPOUNDS = NO
-
-# If the HIDE_IN_BODY_DOCS tag is set to YES, Doxygen will hide any 
-# documentation blocks found inside the body of a function. 
-# If set to NO (the default) these blocks will be appended to the 
-# function's detailed documentation block.
-
-HIDE_IN_BODY_DOCS = NO
-
-# The INTERNAL_DOCS tag determines if documentation 
-# that is typed after a \internal command is included. If the tag is set 
-# to NO (the default) then the documentation will be excluded. 
-# Set it to YES to include the internal documentation.
-
-INTERNAL_DOCS = NO
-
-# If the CASE_SENSE_NAMES tag is set to NO then Doxygen will only generate 
-# file names in lower-case letters. If set to YES upper-case letters are also 
-# allowed. This is useful if you have classes or files whose names only differ 
-# in case and if your file system supports case sensitive file names. Windows 
-# and Mac users are advised to set this option to NO.
-
-CASE_SENSE_NAMES = YES
-
-# If the HIDE_SCOPE_NAMES tag is set to NO (the default) then Doxygen 
-# will show members with their full class and namespace scopes in the 
-# documentation. If set to YES the scope will be hidden.
-
-HIDE_SCOPE_NAMES = NO
-
-# If the SHOW_INCLUDE_FILES tag is set to YES (the default) then Doxygen 
-# will put a list of the files that are included by a file in the documentation 
-# of that file.
-
-SHOW_INCLUDE_FILES = NO
-
-# If the INLINE_INFO tag is set to YES (the default) then a tag [inline] 
-# is inserted in the documentation for inline members.
-
-INLINE_INFO = YES
-
-# If the SORT_MEMBER_DOCS tag is set to YES (the default) then doxygen 
-# will sort the (detailed) documentation of file and class members 
-# alphabetically by member name. If set to NO the members will appear in 
-# declaration order.
-
-SORT_MEMBER_DOCS = YES
-
-# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the 
-# brief documentation of file, namespace and class members alphabetically 
-# by member name. If set to NO (the default) the members will appear in 
-# declaration order.
-
-SORT_BRIEF_DOCS = NO
-
-# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be 
-# sorted by fully-qualified names, including namespaces. If set to 
-# NO (the default), the class list will be sorted only by class name, 
-# not including the namespace part. 
-# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES.
-# Note: This option applies only to the class list, not to the 
-# alphabetical list.
-
-SORT_BY_SCOPE_NAME = NO
-
-# The GENERATE_TODOLIST tag can be used to enable (YES) or 
-# disable (NO) the todo list. This list is created by putting \todo 
-# commands in the documentation.
-
-GENERATE_TODOLIST = YES
-
-# The GENERATE_TESTLIST tag can be used to enable (YES) or 
-# disable (NO) the test list. This list is created by putting \test 
-# commands in the documentation.
-
-GENERATE_TESTLIST = YES
-
-# The GENERATE_BUGLIST tag can be used to enable (YES) or 
-# disable (NO) the bug list. This list is created by putting \bug 
-# commands in the documentation.
-
-GENERATE_BUGLIST = YES
-
-# The GENERATE_DEPRECATEDLIST tag can be used to enable (YES) or 
-# disable (NO) the deprecated list. This list is created by putting 
-# \deprecated commands in the documentation.
-
-GENERATE_DEPRECATEDLIST = YES
-
-# The ENABLED_SECTIONS tag can be used to enable conditional 
-# documentation sections, marked by \if sectionname ... \endif.
-
-ENABLED_SECTIONS = 
-
-# The MAX_INITIALIZER_LINES tag determines the maximum number of lines 
-# the initial value of a variable or define consists of for it to appear in 
-# the documentation. If the initializer consists of more lines than specified 
-# here it will be hidden. Use a value of 0 to hide initializers completely. 
-# The appearance of the initializer of individual variables and defines in the 
-# documentation can be controlled using \showinitializer or \hideinitializer 
-# command in the documentation regardless of this setting.
-
-MAX_INITIALIZER_LINES = 30
-
-# Set the SHOW_USED_FILES tag to NO to disable the list of files generated 
-# at the bottom of the documentation of classes and structs. If set to YES the 
-# list will mention the files that were used to generate the documentation.
-
-SHOW_USED_FILES = YES
-
-# If the sources in your project are distributed over multiple directories 
-# then setting the SHOW_DIRECTORIES tag to YES will show the directory hierarchy 
-# in the documentation. The default is NO.
-
-SHOW_DIRECTORIES = NO
-
-# The FILE_VERSION_FILTER tag can be used to specify a program or script that 
-# doxygen should invoke to get the current version for each file (typically from the 
-# version control system). Doxygen will invoke the program by executing (via 
-# popen()) the command <command> <input-file>, where <command> is the value of 
-# the FILE_VERSION_FILTER tag, and <input-file> is the name of an input file 
-# provided by doxygen. Whatever the program writes to standard output 
-# is used as the file version. See the manual for examples.
-
-FILE_VERSION_FILTER = 
-
-#---------------------------------------------------------------------------
-# configuration options related to warning and progress messages
-#---------------------------------------------------------------------------
-
-# The QUIET tag can be used to turn on/off the messages that are generated 
-# by doxygen. Possible values are YES and NO. If left blank NO is used.
-
-QUIET = NO
-
-# The WARNINGS tag can be used to turn on/off the warning messages that are 
-# generated by doxygen. Possible values are YES and NO. If left blank 
-# NO is used.
-
-WARNINGS = YES
-
-# If WARN_IF_UNDOCUMENTED is set to YES, then doxygen will generate warnings 
-# for undocumented members. If EXTRACT_ALL is set to YES then this flag will 
-# automatically be disabled.
-
-WARN_IF_UNDOCUMENTED = YES
-
-# If WARN_IF_DOC_ERROR is set to YES, doxygen will generate warnings for 
-# potential errors in the documentation, such as not documenting some 
-# parameters in a documented function, or documenting parameters that 
-# don't exist or using markup commands wrongly.
-
-WARN_IF_DOC_ERROR = YES
-
-# This WARN_NO_PARAMDOC option can be abled to get warnings for 
-# functions that are documented, but have no documentation for their parameters 
-# or return value. If set to NO (the default) doxygen will only warn about 
-# wrong or incomplete parameter documentation, but not about the absence of 
-# documentation.
-
-WARN_NO_PARAMDOC = NO
-
-# The WARN_FORMAT tag determines the format of the warning messages that 
-# doxygen can produce. The string should contain the $file, $line, and $text 
-# tags, which will be replaced by the file and line number from which the 
-# warning originated and the warning text. Optionally the format may contain 
-# $version, which will be replaced by the version of the file (if it could 
-# be obtained via FILE_VERSION_FILTER)
-
-WARN_FORMAT = "$file:$line: $text"
-
-# The WARN_LOGFILE tag can be used to specify a file to which warning 
-# and error messages should be written. If left blank the output is written 
-# to stderr.
-
-WARN_LOGFILE = 
-
-#---------------------------------------------------------------------------
-# configuration options related to the input files
-#---------------------------------------------------------------------------
-
-# The INPUT tag can be used to specify the files and/or directories that contain 
-# documented source files. You may enter file names like "myfile.cpp" or 
-# directories like "/usr/src/myproject". Separate the files or directories 
-# with spaces.
-
-INPUT = include/zoo_queue.h
-
-# If the value of the INPUT tag contains directories, you can use the 
-# FILE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp 
-# and *.h) to filter out the source-files in the directories. If left 
-# blank the following patterns are tested: 
-# *.c *.cc *.cxx *.cpp *.c++ *.java *.ii *.ixx *.ipp *.i++ *.inl *.h *.hh *.hxx 
-# *.hpp *.h++ *.idl *.odl *.cs *.php *.php3 *.inc *.m *.mm *.py
-
-FILE_PATTERNS = 
-
-# The RECURSIVE tag can be used to turn specify whether or not subdirectories 
-# should be searched for input files as well. Possible values are YES and NO. 
-# If left blank NO is used.
-
-RECURSIVE = NO
-
-# The EXCLUDE tag can be used to specify files and/or directories that should 
-# excluded from the INPUT source files. This way you can easily exclude a 
-# subdirectory from a directory tree whose root is specified with the INPUT tag.
-
-EXCLUDE = 
-
-# The EXCLUDE_SYMLINKS tag can be used select whether or not files or 
-# directories that are symbolic links (a Unix filesystem feature) are excluded 
-# from the input.
-
-EXCLUDE_SYMLINKS = NO
-
-# If the value of the INPUT tag contains directories, you can use the 
-# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude 
-# certain files from those directories. Note that the wildcards are matched 
-# against the file with absolute path, so to exclude all test directories 
-# for example use the pattern */test/*
-
-EXCLUDE_PATTERNS = 
-
-# The EXAMPLE_PATH tag can be used to specify one or more files or 
-# directories that contain example code fragments that are included (see 
-# the \include command).
-
-EXAMPLE_PATH = 
-
-# If the value of the EXAMPLE_PATH tag contains directories, you can use the 
-# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp 
-# and *.h) to filter out the source-files in the directories. If left 
-# blank all files are included.
-
-EXAMPLE_PATTERNS = 
-
-# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be 
-# searched for input files to be used with the \include or \dontinclude 
-# commands irrespective of the value of the RECURSIVE tag. 
-# Possible values are YES and NO. If left blank NO is used.
-
-EXAMPLE_RECURSIVE = NO
-
-# The IMAGE_PATH tag can be used to specify one or more files or 
-# directories that contain image that are included in the documentation (see 
-# the \image command).
-
-IMAGE_PATH = 
-
-# The INPUT_FILTER tag can be used to specify a program that doxygen should 
-# invoke to filter for each input file. Doxygen will invoke the filter program 
-# by executing (via popen()) the command <filter> <input-file>, where <filter> 
-# is the value of the INPUT_FILTER tag, and <input-file> is the name of an 
-# input file. Doxygen will then use the output that the filter program writes 
-# to standard output.  If FILTER_PATTERNS is specified, this tag will be 
-# ignored.
-
-INPUT_FILTER = 
-
-# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern 
-# basis.  Doxygen will compare the file name with each pattern and apply the 
-# filter if there is a match.  The filters are a list of the form: 
-# pattern=filter (like *.cpp=my_cpp_filter). See INPUT_FILTER for further 
-# info on how filters are used. If FILTER_PATTERNS is empty, INPUT_FILTER 
-# is applied to all files.
-
-FILTER_PATTERNS = 
-
-# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using 
-# INPUT_FILTER) will be used to filter the input files when producing source 
-# files to browse (i.e. when SOURCE_BROWSER is set to YES).
-
-FILTER_SOURCE_FILES = NO
-
-#---------------------------------------------------------------------------
-# configuration options related to source browsing
-#---------------------------------------------------------------------------
-
-# If the SOURCE_BROWSER tag is set to YES then a list of source files will 
-# be generated. Documented entities will be cross-referenced with these sources. 
-# Note: To get rid of all source code in the generated output, make sure also 
-# VERBATIM_HEADERS is set to NO.
-
-SOURCE_BROWSER = NO
-
-# Setting the INLINE_SOURCES tag to YES will include the body 
-# of functions and classes directly in the documentation.
-
-INLINE_SOURCES = NO
-
-# Setting the STRIP_CODE_COMMENTS tag to YES (the default) will instruct 
-# doxygen to hide any special comment blocks from generated source code 
-# fragments. Normal C and C++ comments will always remain visible.
-
-STRIP_CODE_COMMENTS = YES
-
-# If the REFERENCED_BY_RELATION tag is set to YES (the default) 
-# then for each documented function all documented 
-# functions referencing it will be listed.
-
-REFERENCED_BY_RELATION = YES
-
-# If the REFERENCES_RELATION tag is set to YES (the default) 
-# then for each documented function all documented entities 
-# called/used by that function will be listed.
-
-REFERENCES_RELATION = YES
-
-# If the REFERENCES_LINK_SOURCE tag is set to YES (the default)
-# and SOURCE_BROWSER tag is set to YES, then the hyperlinks from
-# functions in REFERENCES_RELATION and REFERENCED_BY_RELATION lists will
-# link to the source code.  Otherwise they will link to the documentstion.
-
-REFERENCES_LINK_SOURCE = YES
-
-# If the USE_HTAGS tag is set to YES then the references to source code 
-# will point to the HTML generated by the htags(1) tool instead of doxygen 
-# built-in source browser. The htags tool is part of GNU's global source 
-# tagging system (see http://www.gnu.org/software/global/global.html). You 
-# will need version 4.8.6 or higher.
-
-USE_HTAGS = NO
-
-# If the VERBATIM_HEADERS tag is set to YES (the default) then Doxygen 
-# will generate a verbatim copy of the header file for each class for 
-# which an include is specified. Set to NO to disable this.
-
-VERBATIM_HEADERS = YES
-
-#---------------------------------------------------------------------------
-# configuration options related to the alphabetical class index
-#---------------------------------------------------------------------------
-
-# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index 
-# of all compounds will be generated. Enable this if the project 
-# contains a lot of classes, structs, unions or interfaces.
-
-ALPHABETICAL_INDEX = NO
-
-# If the alphabetical index is enabled (see ALPHABETICAL_INDEX) then 
-# the COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns 
-# in which this list will be split (can be a number in the range [1..20])
-
-COLS_IN_ALPHA_INDEX = 5
-
-# In case all classes in a project start with a common prefix, all 
-# classes will be put under the same header in the alphabetical index. 
-# The IGNORE_PREFIX tag can be used to specify one or more prefixes that 
-# should be ignored while generating the index headers.
-
-IGNORE_PREFIX = 
-
-#---------------------------------------------------------------------------
-# configuration options related to the HTML output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_HTML tag is set to YES (the default) Doxygen will 
-# generate HTML output.
-
-GENERATE_HTML = $(GENERATE_HTML)
-
-# The HTML_OUTPUT tag is used to specify where the HTML docs will be put. 
-# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
-# put in front of it. If left blank `html' will be used as the default path.
-
-HTML_OUTPUT = html
-
-# The HTML_FILE_EXTENSION tag can be used to specify the file extension for 
-# each generated HTML page (for example: .htm,.php,.asp). If it is left blank 
-# doxygen will generate files with .html extension.
-
-HTML_FILE_EXTENSION = .html
-
-# The HTML_HEADER tag can be used to specify a personal HTML header for 
-# each generated HTML page. If it is left blank doxygen will generate a 
-# standard header.
-
-HTML_HEADER = 
-
-# The HTML_FOOTER tag can be used to specify a personal HTML footer for 
-# each generated HTML page. If it is left blank doxygen will generate a 
-# standard footer.
-
-HTML_FOOTER = 
-
-# The HTML_STYLESHEET tag can be used to specify a user-defined cascading 
-# style sheet that is used by each HTML page. It can be used to 
-# fine-tune the look of the HTML output. If the tag is left blank doxygen 
-# will generate a default style sheet. Note that doxygen will try to copy 
-# the style sheet file to the HTML output directory, so don't put your own 
-# stylesheet in the HTML output directory as well, or it will be erased!
-
-HTML_STYLESHEET = 
-
-# If the HTML_ALIGN_MEMBERS tag is set to YES, the members of classes, 
-# files or namespaces will be aligned in HTML using tables. If set to 
-# NO a bullet list will be used.
-
-HTML_ALIGN_MEMBERS = YES
-
-# If the GENERATE_HTMLHELP tag is set to YES, additional index files 
-# will be generated that can be used as input for tools like the 
-# Microsoft HTML help workshop to generate a compressed HTML help file (.chm) 
-# of the generated HTML documentation.
-
-GENERATE_HTMLHELP = $(GENERATE_HTMLHELP)
-
-# If the GENERATE_HTMLHELP tag is set to YES, the CHM_FILE tag can 
-# be used to specify the file name of the resulting .chm file. You 
-# can add a path in front of the file if the result should not be 
-# written to the html output directory.
-
-CHM_FILE = ../$(PROJECT).chm
-
-# If the GENERATE_HTMLHELP tag is set to YES, the HHC_LOCATION tag can 
-# be used to specify the location (absolute path including file name) of 
-# the HTML help compiler (hhc.exe). If non-empty doxygen will try to run 
-# the HTML help compiler on the generated index.hhp.
-
-HHC_LOCATION = $(HHC_PATH)
-
-# If the GENERATE_HTMLHELP tag is set to YES, the GENERATE_CHI flag 
-# controls if a separate .chi index file is generated (YES) or that 
-# it should be included in the master .chm file (NO).
-
-GENERATE_CHI = $(GENERATE_CHI)
-
-# If the GENERATE_HTMLHELP tag is set to YES, the BINARY_TOC flag 
-# controls whether a binary table of contents is generated (YES) or a 
-# normal table of contents (NO) in the .chm file.
-
-BINARY_TOC = NO
-
-# The TOC_EXPAND flag can be set to YES to add extra items for group members 
-# to the contents of the HTML help documentation and to the tree view.
-
-TOC_EXPAND = NO
-
-# The DISABLE_INDEX tag can be used to turn on/off the condensed index at 
-# top of each HTML page. The value NO (the default) enables the index and 
-# the value YES disables it.
-
-DISABLE_INDEX = NO
-
-# This tag can be used to set the number of enum values (range [1..20]) 
-# that doxygen will group on one line in the generated HTML documentation.
-
-ENUM_VALUES_PER_LINE = 4
-
-# If the GENERATE_TREEVIEW tag is set to YES, a side panel will be
-# generated containing a tree-like index structure (just like the one that 
-# is generated for HTML Help). For this to work a browser that supports 
-# JavaScript, DHTML, CSS and frames is required (for instance Mozilla 1.0+, 
-# Netscape 6.0+, Internet explorer 5.0+, or Konqueror). Windows users are 
-# probably better off using the HTML help feature.
-
-GENERATE_TREEVIEW = NO
-
-# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be 
-# used to set the initial width (in pixels) of the frame in which the tree 
-# is shown.
-
-TREEVIEW_WIDTH = 250
-
-#---------------------------------------------------------------------------
-# configuration options related to the LaTeX output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_LATEX tag is set to YES (the default) Doxygen will 
-# generate Latex output.
-
-GENERATE_LATEX = $(GENERATE_LATEX)
-
-# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. 
-# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
-# put in front of it. If left blank `latex' will be used as the default path.
-
-LATEX_OUTPUT = latex
-
-# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be 
-# invoked. If left blank `latex' will be used as the default command name.
-
-LATEX_CMD_NAME = latex
-
-# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to 
-# generate index for LaTeX. If left blank `makeindex' will be used as the 
-# default command name.
-
-MAKEINDEX_CMD_NAME = makeindex
-
-# If the COMPACT_LATEX tag is set to YES Doxygen generates more compact 
-# LaTeX documents. This may be useful for small projects and may help to 
-# save some trees in general.
-
-COMPACT_LATEX = NO
-
-# The PAPER_TYPE tag can be used to set the paper type that is used 
-# by the printer. Possible values are: a4, a4wide, letter, legal and 
-# executive. If left blank a4wide will be used.
-
-PAPER_TYPE = $(PAPER_SIZE)
-
-# The EXTRA_PACKAGES tag can be to specify one or more names of LaTeX 
-# packages that should be included in the LaTeX output.
-
-EXTRA_PACKAGES = 
-
-# The LATEX_HEADER tag can be used to specify a personal LaTeX header for 
-# the generated latex document. The header should contain everything until 
-# the first chapter. If it is left blank doxygen will generate a 
-# standard header. Notice: only use this tag if you know what you are doing!
-
-LATEX_HEADER = 
-
-# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated 
-# is prepared for conversion to pdf (using ps2pdf). The pdf file will 
-# contain links (just like the HTML output) instead of page references 
-# This makes the output suitable for online browsing using a pdf viewer.
-
-PDF_HYPERLINKS = NO
-
-# If the USE_PDFLATEX tag is set to YES, pdflatex will be used instead of 
-# plain latex in the generated Makefile. Set this option to YES to get a 
-# higher quality PDF documentation.
-
-USE_PDFLATEX = $(GENERATE_PDF)
-
-# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \\batchmode. 
-# command to the generated LaTeX files. This will instruct LaTeX to keep 
-# running if errors occur, instead of asking the user for help. 
-# This option is also used when generating formulas in HTML.
-
-LATEX_BATCHMODE = NO
-
-# If LATEX_HIDE_INDICES is set to YES then doxygen will not 
-# include the index chapters (such as File Index, Compound Index, etc.) 
-# in the output.
-
-LATEX_HIDE_INDICES = NO
-
-#---------------------------------------------------------------------------
-# configuration options related to the RTF output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_RTF tag is set to YES Doxygen will generate RTF output 
-# The RTF output is optimized for Word 97 and may not look very pretty with 
-# other RTF readers or editors.
-
-GENERATE_RTF = $(GENERATE_RTF)
-
-# The RTF_OUTPUT tag is used to specify where the RTF docs will be put. 
-# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
-# put in front of it. If left blank `rtf' will be used as the default path.
-
-RTF_OUTPUT = rtf
-
-# If the COMPACT_RTF tag is set to YES Doxygen generates more compact 
-# RTF documents. This may be useful for small projects and may help to 
-# save some trees in general.
-
-COMPACT_RTF = NO
-
-# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated 
-# will contain hyperlink fields. The RTF file will 
-# contain links (just like the HTML output) instead of page references. 
-# This makes the output suitable for online browsing using WORD or other 
-# programs which support those fields. 
-# Note: wordpad (write) and others do not support links.
-
-RTF_HYPERLINKS = NO
-
-# Load stylesheet definitions from file. Syntax is similar to doxygen's 
-# config file, i.e. a series of assignments. You only have to provide 
-# replacements, missing definitions are set to their default value.
-
-RTF_STYLESHEET_FILE = 
-
-# Set optional variables used in the generation of an rtf document. 
-# Syntax is similar to doxygen's config file.
-
-RTF_EXTENSIONS_FILE = 
-
-#---------------------------------------------------------------------------
-# configuration options related to the man page output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_MAN tag is set to YES (the default) Doxygen will 
-# generate man pages
-
-GENERATE_MAN = $(GENERATE_MAN)
-
-# The MAN_OUTPUT tag is used to specify where the man pages will be put. 
-# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
-# put in front of it. If left blank `man' will be used as the default path.
-
-MAN_OUTPUT = man
-
-# The MAN_EXTENSION tag determines the extension that is added to 
-# the generated man pages (default is the subroutine's section .3)
-
-MAN_EXTENSION = .3
-
-# If the MAN_LINKS tag is set to YES and Doxygen generates man output, 
-# then it will generate one additional man file for each entity 
-# documented in the real man page(s). These additional files 
-# only source the real man page, but without them the man command 
-# would be unable to find the correct page. The default is NO.
-
-MAN_LINKS = NO
-
-#---------------------------------------------------------------------------
-# configuration options related to the XML output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_XML tag is set to YES Doxygen will 
-# generate an XML file that captures the structure of 
-# the code including all documentation.
-
-GENERATE_XML = $(GENERATE_XML)
-
-# The XML_OUTPUT tag is used to specify where the XML pages will be put. 
-# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
-# put in front of it. If left blank `xml' will be used as the default path.
-
-XML_OUTPUT = xml
-
-# The XML_SCHEMA tag can be used to specify an XML schema, 
-# which can be used by a validating XML parser to check the 
-# syntax of the XML files.
-
-XML_SCHEMA = 
-
-# The XML_DTD tag can be used to specify an XML DTD, 
-# which can be used by a validating XML parser to check the 
-# syntax of the XML files.
-
-XML_DTD = 
-
-# If the XML_PROGRAMLISTING tag is set to YES Doxygen will 
-# dump the program listings (including syntax highlighting 
-# and cross-referencing information) to the XML output. Note that 
-# enabling this will significantly increase the size of the XML output.
-
-XML_PROGRAMLISTING = YES
-
-#---------------------------------------------------------------------------
-# configuration options for the AutoGen Definitions output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_AUTOGEN_DEF tag is set to YES Doxygen will 
-# generate an AutoGen Definitions (see autogen.sf.net) file 
-# that captures the structure of the code including all 
-# documentation. Note that this feature is still experimental 
-# and incomplete at the moment.
-
-GENERATE_AUTOGEN_DEF = NO
-
-#---------------------------------------------------------------------------
-# configuration options related to the Perl module output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_PERLMOD tag is set to YES Doxygen will 
-# generate a Perl module file that captures the structure of 
-# the code including all documentation. Note that this 
-# feature is still experimental and incomplete at the 
-# moment.
-
-GENERATE_PERLMOD = NO
-
-# If the PERLMOD_LATEX tag is set to YES Doxygen will generate 
-# the necessary Makefile rules, Perl scripts and LaTeX code to be able 
-# to generate PDF and DVI output from the Perl module output.
-
-PERLMOD_LATEX = NO
-
-# If the PERLMOD_PRETTY tag is set to YES the Perl module output will be 
-# nicely formatted so it can be parsed by a human reader.  This is useful 
-# if you want to understand what is going on.  On the other hand, if this 
-# tag is set to NO the size of the Perl module output will be much smaller 
-# and Perl will parse it just the same.
-
-PERLMOD_PRETTY = YES
-
-# The names of the make variables in the generated doxyrules.make file 
-# are prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX. 
-# This is useful so different doxyrules.make files included by the same 
-# Makefile don't overwrite each other's variables.
-
-PERLMOD_MAKEVAR_PREFIX = 
-
-#---------------------------------------------------------------------------
-# Configuration options related to the preprocessor   
-#---------------------------------------------------------------------------
-
-# If the ENABLE_PREPROCESSING tag is set to YES (the default) Doxygen will 
-# evaluate all C-preprocessor directives found in the sources and include 
-# files.
-
-ENABLE_PREPROCESSING = YES
-
-# If the MACRO_EXPANSION tag is set to YES Doxygen will expand all macro 
-# names in the source code. If set to NO (the default) only conditional 
-# compilation will be performed. Macro expansion can be done in a controlled 
-# way by setting EXPAND_ONLY_PREDEF to YES.
-
-MACRO_EXPANSION = NO
-
-# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES 
-# then the macro expansion is limited to the macros specified with the 
-# PREDEFINED and EXPAND_AS_DEFINED tags.
-
-EXPAND_ONLY_PREDEF = NO
-
-# If the SEARCH_INCLUDES tag is set to YES (the default) the includes files 
-# in the INCLUDE_PATH (see below) will be search if a #include is found.
-
-SEARCH_INCLUDES = YES
-
-# The INCLUDE_PATH tag can be used to specify one or more directories that 
-# contain include files that are not input files but should be processed by 
-# the preprocessor.
-
-INCLUDE_PATH = 
-
-# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard 
-# patterns (like *.h and *.hpp) to filter out the header-files in the 
-# directories. If left blank, the patterns specified with FILE_PATTERNS will 
-# be used.
-
-INCLUDE_FILE_PATTERNS = 
-
-# The PREDEFINED tag can be used to specify one or more macro names that 
-# are defined before the preprocessor is started (similar to the -D option of 
-# gcc). The argument of the tag is a list of macros of the form: name 
-# or name=definition (no spaces). If the definition and the = are 
-# omitted =1 is assumed. To prevent a macro definition from being 
-# undefined via #undef or recursively expanded use the := operator 
-# instead of the = operator.
-
-PREDEFINED = 
-
-# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then 
-# this tag can be used to specify a list of macro names that should be expanded. 
-# The macro definition that is found in the sources will be used. 
-# Use the PREDEFINED tag if you want to use a different macro definition.
-
-EXPAND_AS_DEFINED = 
-
-# If the SKIP_FUNCTION_MACROS tag is set to YES (the default) then 
-# doxygen's preprocessor will remove all function-like macros that are alone 
-# on a line, have an all uppercase name, and do not end with a semicolon. Such 
-# function macros are typically used for boiler-plate code, and will confuse 
-# the parser if not removed.
-
-SKIP_FUNCTION_MACROS = YES
-
-#---------------------------------------------------------------------------
-# Configuration::additions related to external references   
-#---------------------------------------------------------------------------
-
-# The TAGFILES option can be used to specify one or more tagfiles. 
-# Optionally an initial location of the external documentation 
-# can be added for each tagfile. The format of a tag file without 
-# this location is as follows: 
-#   TAGFILES = file1 file2 ... 
-# Adding location for the tag files is done as follows: 
-#   TAGFILES = file1=loc1 "file2 = loc2" ... 
-# where "loc1" and "loc2" can be relative or absolute paths or 
-# URLs. If a location is present for each tag, the installdox tool 
-# does not have to be run to correct the links.
-# Note that each tag file must have a unique name
-# (where the name does NOT include the path)
-# If a tag file is not located in the directory in which doxygen 
-# is run, you must also specify the path to the tagfile here.
-
-TAGFILES = 
-
-# When a file name is specified after GENERATE_TAGFILE, doxygen will create 
-# a tag file that is based on the input files it reads.
-
-GENERATE_TAGFILE = $(DOCDIR)/$(PROJECT).tag
-
-# If the ALLEXTERNALS tag is set to YES all external classes will be listed 
-# in the class index. If set to NO only the inherited external classes 
-# will be listed.
-
-ALLEXTERNALS = NO
-
-# If the EXTERNAL_GROUPS tag is set to YES all external groups will be listed 
-# in the modules index. If set to NO, only the current project's groups will 
-# be listed.
-
-EXTERNAL_GROUPS = YES
-
-# The PERL_PATH should be the absolute path and name of the perl script 
-# interpreter (i.e. the result of `which perl').
-
-PERL_PATH = /usr/bin/perl
-
-#---------------------------------------------------------------------------
-# Configuration options related to the dot tool   
-#---------------------------------------------------------------------------
-
-# If the CLASS_DIAGRAMS tag is set to YES (the default) Doxygen will 
-# generate a inheritance diagram (in HTML, RTF and LaTeX) for classes with base 
-# or super classes. Setting the tag to NO turns the diagrams off. Note that 
-# this option is superseded by the HAVE_DOT option below. This is only a 
-# fallback. It is recommended to install and use dot, since it yields more 
-# powerful graphs.
-
-CLASS_DIAGRAMS = YES
-
-# If set to YES, the inheritance and collaboration graphs will hide 
-# inheritance and usage relations if the target is undocumented 
-# or is not a class.
-
-HIDE_UNDOC_RELATIONS = YES
-
-# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is 
-# available from the path. This tool is part of Graphviz, a graph visualization 
-# toolkit from AT&T and Lucent Bell Labs. The other options in this section 
-# have no effect if this option is set to NO (the default)
-
-HAVE_DOT = $(HAVE_DOT)
-
-# If the CLASS_GRAPH and HAVE_DOT tags are set to YES then doxygen 
-# will generate a graph for each documented class showing the direct and 
-# indirect inheritance relations. Setting this tag to YES will force the 
-# the CLASS_DIAGRAMS tag to NO.
-
-CLASS_GRAPH = YES
-
-# If the COLLABORATION_GRAPH and HAVE_DOT tags are set to YES then doxygen 
-# will generate a graph for each documented class showing the direct and 
-# indirect implementation dependencies (inheritance, containment, and 
-# class references variables) of the class with other documented classes.
-
-COLLABORATION_GRAPH = YES
-
-# If the GROUP_GRAPHS and HAVE_DOT tags are set to YES then doxygen 
-# will generate a graph for groups, showing the direct groups dependencies
-
-GROUP_GRAPHS = YES
-
-# If the UML_LOOK tag is set to YES doxygen will generate inheritance and 
-# collaboration diagrams in a style similar to the OMG's Unified Modeling 
-# Language.
-
-UML_LOOK = NO
-
-# If set to YES, the inheritance and collaboration graphs will show the 
-# relations between templates and their instances.
-
-TEMPLATE_RELATIONS = NO
-
-# If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDE_GRAPH, and HAVE_DOT 
-# tags are set to YES then doxygen will generate a graph for each documented 
-# file showing the direct and indirect include dependencies of the file with 
-# other documented files.
-
-INCLUDE_GRAPH = YES
-
-# If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDED_BY_GRAPH, and 
-# HAVE_DOT tags are set to YES then doxygen will generate a graph for each 
-# documented header file showing the documented files that directly or 
-# indirectly include this file.
-
-INCLUDED_BY_GRAPH = YES
-
-# If the CALL_GRAPH and HAVE_DOT tags are set to YES then doxygen will 
-# generate a call dependency graph for every global function or class method. 
-# Note that enabling this option will significantly increase the time of a run. 
-# So in most cases it will be better to enable call graphs for selected 
-# functions only using the \callgraph command.
-
-CALL_GRAPH = NO
-
-# If the CALLER_GRAPH and HAVE_DOT tags are set to YES then doxygen will 
-# generate a caller dependency graph for every global function or class method. 
-# Note that enabling this option will significantly increase the time of a run. 
-# So in most cases it will be better to enable caller graphs for selected 
-# functions only using the \callergraph command.
-
-CALLER_GRAPH = NO
-
-# If the GRAPHICAL_HIERARCHY and HAVE_DOT tags are set to YES then doxygen 
-# will graphical hierarchy of all classes instead of a textual one.
-
-GRAPHICAL_HIERARCHY = YES
-
-# If the DIRECTORY_GRAPH, SHOW_DIRECTORIES and HAVE_DOT tags are set to YES 
-# then doxygen will show the dependencies a directory has on other directories 
-# in a graphical way. The dependency relations are determined by the #include
-# relations between the files in the directories.
-
-DIRECTORY_GRAPH = YES
-
-# The DOT_IMAGE_FORMAT tag can be used to set the image format of the images 
-# generated by dot. Possible values are png, jpg, or gif
-# If left blank png will be used.
-
-DOT_IMAGE_FORMAT = png
-
-# The tag DOT_PATH can be used to specify the path where the dot tool can be 
-# found. If left blank, it is assumed the dot tool can be found in the path.
-
-DOT_PATH = $(DOT_PATH)
-
-# The DOTFILE_DIRS tag can be used to specify one or more directories that 
-# contain dot files that are included in the documentation (see the 
-# \dotfile command).
-
-DOTFILE_DIRS = 
-
-# The MAX_DOT_GRAPH_WIDTH tag can be used to set the maximum allowed width 
-# (in pixels) of the graphs generated by dot. If a graph becomes larger than 
-# this value, doxygen will try to truncate the graph, so that it fits within 
-# the specified constraint. Beware that most browsers cannot cope with very 
-# large images.
-
-MAX_DOT_GRAPH_WIDTH = 1024
-
-# The MAX_DOT_GRAPH_HEIGHT tag can be used to set the maximum allows height 
-# (in pixels) of the graphs generated by dot. If a graph becomes larger than 
-# this value, doxygen will try to truncate the graph, so that it fits within 
-# the specified constraint. Beware that most browsers cannot cope with very 
-# large images.
-
-MAX_DOT_GRAPH_HEIGHT = 1024
-
-# The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the 
-# graphs generated by dot. A depth value of 3 means that only nodes reachable 
-# from the root by following a path via at most 3 edges will be shown. Nodes 
-# that lay further from the root node will be omitted. Note that setting this 
-# option to 1 or 2 may greatly reduce the computation time needed for large 
-# code bases. Also note that a graph may be further truncated if the graph's 
-# image dimensions are not sufficient to fit the graph (see MAX_DOT_GRAPH_WIDTH 
-# and MAX_DOT_GRAPH_HEIGHT). If 0 is used for the depth value (the default), 
-# the graph is not depth-constrained.
-
-MAX_DOT_GRAPH_DEPTH = 0
-
-# Set the DOT_TRANSPARENT tag to YES to generate images with a transparent 
-# background. This is disabled by default, which results in a white background. 
-# Warning: Depending on the platform used, enabling this option may lead to 
-# badly anti-aliased labels on the edges of a graph (i.e. they become hard to 
-# read).
-
-DOT_TRANSPARENT = NO
-
-# Set the DOT_MULTI_TARGETS tag to YES allow dot to generate multiple output 
-# files in one run (i.e. multiple -o and -T options on the command line). This 
-# makes dot run faster, but since only newer versions of dot (>1.8.10) 
-# support this, this feature is disabled by default.
-
-DOT_MULTI_TARGETS = NO
-
-# If the GENERATE_LEGEND tag is set to YES (the default) Doxygen will 
-# generate a legend page explaining the meaning of the various boxes and 
-# arrows in the dot generated graphs.
-
-GENERATE_LEGEND = YES
-
-# If the DOT_CLEANUP tag is set to YES (the default) Doxygen will 
-# remove the intermediate dot files that are used to generate 
-# the various graphs.
-
-DOT_CLEANUP = YES
-
-#---------------------------------------------------------------------------
-# Configuration::additions related to the search engine   
-#---------------------------------------------------------------------------
-
-# The SEARCHENGINE tag specifies whether or not a search engine should be 
-# used. If set to NO the values of all tags below this one will be ignored.
-
-SEARCHENGINE = NO

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/src/recipes/queue/src/c/configure.ac
----------------------------------------------------------------------
diff --git a/src/recipes/queue/src/c/configure.ac b/src/recipes/queue/src/c/configure.ac
deleted file mode 100644
index a9fb7b1..0000000
--- a/src/recipes/queue/src/c/configure.ac
+++ /dev/null
@@ -1,82 +0,0 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#                                               -*- Autoconf -*-
-# Process this file with autoconf to produce a configure script.
-
-AC_PREREQ(2.59)
-
-AC_INIT([zooqueue], [3.2.0])
-
-AC_CONFIG_SRCDIR([include/zoo_queue.h])
-
-PACKAGE=zooqueue
-VERSION=1.0
-
-AC_SUBST(PACKAGE)
-AC_SUBST(VERSION)
-
-BUILD_PATH="`pwd`"
-
-# Checks for programs.
-AC_LANG_CPLUSPLUS
-
-AM_INIT_AUTOMAKE([-Wall foreign])
-# Checks for libraries.
-
-#initialize Doxygen support
-DX_HTML_FEATURE(ON)
-DX_CHM_FEATURE(OFF)
-DX_CHI_FEATURE(OFF)
-DX_MAN_FEATURE(OFF)
-DX_RTF_FEATURE(OFF)
-DX_XML_FEATURE(OFF)
-DX_PDF_FEATURE(OFF)
-DX_PS_FEATURE(OFF)
-DX_INIT_DOXYGEN([zookeeper-queues],[c-doc.Doxyfile],[docs])
-
-  
-ZOOKEEPER_PATH=${BUILD_PATH}/../../../../../src/c
-ZOOKEEPER_LD=-L${BUILD_PATH}/../../../../../src/c\ -lzookeeper_mt
-
-AC_SUBST(ZOOKEEPER_PATH)
-AC_SUBST(ZOOKEEPER_LD)
-
-# Checks for header files.
-AC_HEADER_DIRENT
-AC_HEADER_STDC
-AC_CHECK_HEADERS([fcntl.h stdlib.h string.h sys/time.h unistd.h])
-
-# Checks for typedefs, structures, and compiler characteristics.
-AC_HEADER_STDBOOL
-AC_C_CONST
-AC_TYPE_UID_T
-AC_C_INLINE
-AC_TYPE_OFF_T
-AC_TYPE_SIZE_T
-AC_STRUCT_ST_BLOCKS
-AC_HEADER_TIME
-AC_C_VOLATILE
-AC_PROG_CC
-AC_PROG_LIBTOOL
-#check for cppunit 
-AM_PATH_CPPUNIT(1.10.2)
-# Checks for library functions.
-AC_FUNC_UTIME_NULL
-AC_CHECK_FUNCS([gettimeofday memset mkdir rmdir strdup strerror strstr strtol strtoul strtoull utime])
-
-AC_CONFIG_FILES([Makefile])
-AC_OUTPUT
-AC_C_VOLATILE


[03/10] zookeeper git commit: ZOOKEEPER-3033: branch-3.4 - MAVEN MIGRATION - Step 1.2 - zk-recipes

Posted by an...@apache.org.
http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/src/c/tests/zkServer.sh
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/src/c/tests/zkServer.sh b/zookeeper-recipes/lock/src/c/tests/zkServer.sh
new file mode 100755
index 0000000..a22fd30
--- /dev/null
+++ b/zookeeper-recipes/lock/src/c/tests/zkServer.sh
@@ -0,0 +1,75 @@
+#!/bin/bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+if [ "x$1" == "x" ]
+then
+	echo "USAGE: $0 startClean|start|stop hostPorts"
+	exit 2
+fi
+
+if [ "x$1" == "xstartClean" ]
+then
+	rm -rf /tmp/zkdata
+fi
+
+# Make sure nothing is left over from before
+if [ -r "/tmp/zk.pid" ]
+then
+pid=`cat /tmp/zk.pid`
+kill -9 $pid
+rm -f /tmp/zk.pid
+fi
+
+base_dir="../../../../.."
+
+CLASSPATH="$CLASSPATH:${base_dir}/build/classes"
+CLASSPATH="$CLASSPATH:${base_dir}/conf"
+
+for f in "${base_dir}"/zookeeper-*.jar
+do
+    CLASSPATH="$CLASSPATH:$f"
+done
+
+for i in "${base_dir}"/build/lib/*.jar
+do
+    CLASSPATH="$CLASSPATH:$i"
+done
+
+for i in "${base_dir}"/src/java/lib/*.jar
+do
+    CLASSPATH="$CLASSPATH:$i"
+done
+
+CLASSPATH="$CLASSPATH:${CLOVER_HOME}/lib/clover.jar"
+
+case $1 in
+start|startClean)
+	mkdir -p /tmp/zkdata
+	java -cp $CLASSPATH org.apache.zookeeper.server.ZooKeeperServerMain 22181 /tmp/zkdata &> /tmp/zk.log &
+        echo $! > /tmp/zk.pid
+        sleep 5
+	;;
+stop)
+	# Already killed above
+	;;
+*)
+	echo "Unknown command " + $1
+	exit 2
+esac
+

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/src/java/org/apache/zookeeper/recipes/lock/LockListener.java
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/src/java/org/apache/zookeeper/recipes/lock/LockListener.java b/zookeeper-recipes/lock/src/java/org/apache/zookeeper/recipes/lock/LockListener.java
new file mode 100644
index 0000000..1c21ad6
--- /dev/null
+++ b/zookeeper-recipes/lock/src/java/org/apache/zookeeper/recipes/lock/LockListener.java
@@ -0,0 +1,38 @@
+/**
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.zookeeper.recipes.lock;
+
+/**
+ * This class has two methods which are call
+ * back methods when a lock is acquired and 
+ * when the lock is released.
+ *
+ */
+public interface LockListener {
+    /**
+     * call back called when the lock 
+     * is acquired
+     */
+    public void lockAcquired();
+    
+    /**
+     * call back called when the lock is 
+     * released.
+     */
+    public void lockReleased();
+}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ProtocolSupport.java
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ProtocolSupport.java b/zookeeper-recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ProtocolSupport.java
new file mode 100644
index 0000000..4efdb85
--- /dev/null
+++ b/zookeeper-recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ProtocolSupport.java
@@ -0,0 +1,193 @@
+/**
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.zookeeper.recipes.lock;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.apache.zookeeper.CreateMode;
+import org.apache.zookeeper.KeeperException;
+import org.apache.zookeeper.ZooDefs;
+import org.apache.zookeeper.ZooKeeper;
+import org.apache.zookeeper.data.ACL;
+import org.apache.zookeeper.data.Stat;
+import org.apache.zookeeper.recipes.lock.ZooKeeperOperation;
+
+import java.util.List;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+/**
+ * A base class for protocol implementations which provides a number of higher 
+ * level helper methods for working with ZooKeeper along with retrying synchronous
+ *  operations if the connection to ZooKeeper closes such as 
+ *  {@link #retryOperation(ZooKeeperOperation)}
+ *
+ */
+class ProtocolSupport {
+    private static final Logger LOG = LoggerFactory.getLogger(ProtocolSupport.class);
+
+    protected final ZooKeeper zookeeper;
+    private AtomicBoolean closed = new AtomicBoolean(false);
+    private long retryDelay = 500L;
+    private int retryCount = 10;
+    private List<ACL> acl = ZooDefs.Ids.OPEN_ACL_UNSAFE;
+
+    public ProtocolSupport(ZooKeeper zookeeper) {
+        this.zookeeper = zookeeper;
+    }
+
+    /**
+     * Closes this strategy and releases any ZooKeeper resources; but keeps the
+     *  ZooKeeper instance open
+     */
+    public void close() {
+        if (closed.compareAndSet(false, true)) {
+            doClose();
+        }
+    }
+    
+    /**
+     * return zookeeper client instance
+     * @return zookeeper client instance
+     */
+    public ZooKeeper getZookeeper() {
+        return zookeeper;
+    }
+
+    /**
+     * return the acl its using
+     * @return the acl.
+     */
+    public List<ACL> getAcl() {
+        return acl;
+    }
+
+    /**
+     * set the acl 
+     * @param acl the acl to set to
+     */
+    public void setAcl(List<ACL> acl) {
+        this.acl = acl;
+    }
+
+    /**
+     * get the retry delay in milliseconds
+     * @return the retry delay
+     */
+    public long getRetryDelay() {
+        return retryDelay;
+    }
+
+    /**
+     * Sets the time waited between retry delays
+     * @param retryDelay the retry delay
+     */
+    public void setRetryDelay(long retryDelay) {
+        this.retryDelay = retryDelay;
+    }
+
+    /**
+     * Allow derived classes to perform 
+     * some custom closing operations to release resources
+     */
+    protected void doClose() {
+    }
+
+
+    /**
+     * Perform the given operation, retrying if the connection fails
+     * @return object. it needs to be cast to the callee's expected 
+     * return type.
+     */
+    protected Object retryOperation(ZooKeeperOperation operation) 
+        throws KeeperException, InterruptedException {
+        KeeperException exception = null;
+        for (int i = 0; i < retryCount; i++) {
+            try {
+                return operation.execute();
+            } catch (KeeperException.SessionExpiredException e) {
+                LOG.warn("Session expired for: " + zookeeper + " so reconnecting due to: " + e, e);
+                throw e;
+            } catch (KeeperException.ConnectionLossException e) {
+                if (exception == null) {
+                    exception = e;
+                }
+                LOG.debug("Attempt " + i + " failed with connection loss so " +
+                		"attempting to reconnect: " + e, e);
+                retryDelay(i);
+            }
+        }
+        throw exception;
+    }
+
+    /**
+     * Ensures that the given path exists with no data, the current
+     * ACL and no flags
+     * @param path
+     */
+    protected void ensurePathExists(String path) {
+        ensureExists(path, null, acl, CreateMode.PERSISTENT);
+    }
+
+    /**
+     * Ensures that the given path exists with the given data, ACL and flags
+     * @param path
+     * @param acl
+     * @param flags
+     */
+    protected void ensureExists(final String path, final byte[] data,
+            final List<ACL> acl, final CreateMode flags) {
+        try {
+            retryOperation(new ZooKeeperOperation() {
+                public boolean execute() throws KeeperException, InterruptedException {
+                    Stat stat = zookeeper.exists(path, false);
+                    if (stat != null) {
+                        return true;
+                    }
+                    zookeeper.create(path, data, acl, flags);
+                    return true;
+                }
+            });
+        } catch (KeeperException e) {
+            LOG.warn("Caught: " + e, e);
+        } catch (InterruptedException e) {
+            LOG.warn("Caught: " + e, e);
+        }
+    }
+
+    /**
+     * Returns true if this protocol has been closed
+     * @return true if this protocol is closed
+     */
+    protected boolean isClosed() {
+        return closed.get();
+    }
+
+    /**
+     * Performs a retry delay if this is not the first attempt
+     * @param attemptCount the number of the attempts performed so far
+     */
+    protected void retryDelay(int attemptCount) {
+        if (attemptCount > 0) {
+            try {
+                Thread.sleep(attemptCount * retryDelay);
+            } catch (InterruptedException e) {
+                LOG.debug("Failed to sleep: " + e, e);
+            }
+        }
+    }
+}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/src/java/org/apache/zookeeper/recipes/lock/WriteLock.java
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/src/java/org/apache/zookeeper/recipes/lock/WriteLock.java b/zookeeper-recipes/lock/src/java/org/apache/zookeeper/recipes/lock/WriteLock.java
new file mode 100644
index 0000000..5caebee
--- /dev/null
+++ b/zookeeper-recipes/lock/src/java/org/apache/zookeeper/recipes/lock/WriteLock.java
@@ -0,0 +1,296 @@
+/**
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.zookeeper.recipes.lock;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.apache.zookeeper.KeeperException;
+import org.apache.zookeeper.WatchedEvent;
+import org.apache.zookeeper.Watcher;
+import static org.apache.zookeeper.CreateMode.EPHEMERAL_SEQUENTIAL;
+import org.apache.zookeeper.ZooKeeper;
+import org.apache.zookeeper.data.ACL;
+import org.apache.zookeeper.data.Stat;
+
+import java.util.List;
+import java.util.SortedSet;
+import java.util.TreeSet;
+
+/**
+ * A <a href="package.html">protocol to implement an exclusive
+ *  write lock or to elect a leader</a>. <p/> You invoke {@link #lock()} to 
+ *  start the process of grabbing the lock; you may get the lock then or it may be 
+ *  some time later. <p/> You can register a listener so that you are invoked 
+ *  when you get the lock; otherwise you can ask if you have the lock
+ *  by calling {@link #isOwner()}
+ *
+ */
+public class WriteLock extends ProtocolSupport {
+    private static final Logger LOG = LoggerFactory.getLogger(WriteLock.class);
+
+    private final String dir;
+    private String id;
+    private ZNodeName idName;
+    private String ownerId;
+    private String lastChildId;
+    private byte[] data = {0x12, 0x34};
+    private LockListener callback;
+    private LockZooKeeperOperation zop;
+    
+    /**
+     * zookeeper contructor for writelock
+     * @param zookeeper zookeeper client instance
+     * @param dir the parent path you want to use for locking
+     * @param acls the acls that you want to use for all the paths, 
+     * if null world read/write is used.
+     */
+    public WriteLock(ZooKeeper zookeeper, String dir, List<ACL> acl) {
+        super(zookeeper);
+        this.dir = dir;
+        if (acl != null) {
+            setAcl(acl);
+        }
+        this.zop = new LockZooKeeperOperation();
+    }
+    
+    /**
+     * zookeeper contructor for writelock with callback
+     * @param zookeeper the zookeeper client instance
+     * @param dir the parent path you want to use for locking
+     * @param acl the acls that you want to use for all the paths
+     * @param callback the call back instance
+     */
+    public WriteLock(ZooKeeper zookeeper, String dir, List<ACL> acl, 
+            LockListener callback) {
+        this(zookeeper, dir, acl);
+        this.callback = callback;
+    }
+
+    /**
+     * return the current locklistener
+     * @return the locklistener
+     */
+    public LockListener getLockListener() {
+        return this.callback;
+    }
+    
+    /**
+     * register a different call back listener
+     * @param callback the call back instance
+     */
+    public void setLockListener(LockListener callback) {
+        this.callback = callback;
+    }
+
+    /**
+     * Removes the lock or associated znode if 
+     * you no longer require the lock. this also 
+     * removes your request in the queue for locking
+     * in case you do not already hold the lock.
+     * @throws RuntimeException throws a runtime exception
+     * if it cannot connect to zookeeper.
+     */
+    public synchronized void unlock() throws RuntimeException {
+        
+        if (!isClosed() && id != null) {
+            // we don't need to retry this operation in the case of failure
+            // as ZK will remove ephemeral files and we don't wanna hang
+            // this process when closing if we cannot reconnect to ZK
+            try {
+                
+                ZooKeeperOperation zopdel = new ZooKeeperOperation() {
+                    public boolean execute() throws KeeperException,
+                        InterruptedException {
+                        zookeeper.delete(id, -1);   
+                        return Boolean.TRUE;
+                    }
+                };
+                zopdel.execute();
+            } catch (InterruptedException e) {
+                LOG.warn("Caught: " + e, e);
+                //set that we have been interrupted.
+               Thread.currentThread().interrupt();
+            } catch (KeeperException.NoNodeException e) {
+                // do nothing
+            } catch (KeeperException e) {
+                LOG.warn("Caught: " + e, e);
+                throw (RuntimeException) new RuntimeException(e.getMessage()).
+                    initCause(e);
+            }
+            finally {
+                if (callback != null) {
+                    callback.lockReleased();
+                }
+                id = null;
+            }
+        }
+    }
+    
+    /** 
+     * the watcher called on  
+     * getting watch while watching 
+     * my predecessor
+     */
+    private class LockWatcher implements Watcher {
+        public void process(WatchedEvent event) {
+            // lets either become the leader or watch the new/updated node
+            LOG.debug("Watcher fired on path: " + event.getPath() + " state: " + 
+                    event.getState() + " type " + event.getType());
+            try {
+                lock();
+            } catch (Exception e) {
+                LOG.warn("Failed to acquire lock: " + e, e);
+            }
+        }
+    }
+    
+    /**
+     * a zoookeeper operation that is mainly responsible
+     * for all the magic required for locking.
+     */
+    private  class LockZooKeeperOperation implements ZooKeeperOperation {
+        
+        /** find if we have been created earler if not create our node
+         * 
+         * @param prefix the prefix node
+         * @param zookeeper teh zookeeper client
+         * @param dir the dir paretn
+         * @throws KeeperException
+         * @throws InterruptedException
+         */
+        private void findPrefixInChildren(String prefix, ZooKeeper zookeeper, String dir) 
+            throws KeeperException, InterruptedException {
+            List<String> names = zookeeper.getChildren(dir, false);
+            for (String name : names) {
+                if (name.startsWith(prefix)) {
+                    id = name;
+                    if (LOG.isDebugEnabled()) {
+                        LOG.debug("Found id created last time: " + id);
+                    }
+                    break;
+                }
+            }
+            if (id == null) {
+                id = zookeeper.create(dir + "/" + prefix, data, 
+                        getAcl(), EPHEMERAL_SEQUENTIAL);
+
+                if (LOG.isDebugEnabled()) {
+                    LOG.debug("Created id: " + id);
+                }
+            }
+
+        }
+        
+        /**
+         * the command that is run and retried for actually 
+         * obtaining the lock
+         * @return if the command was successful or not
+         */
+        public boolean execute() throws KeeperException, InterruptedException {
+            do {
+                if (id == null) {
+                    long sessionId = zookeeper.getSessionId();
+                    String prefix = "x-" + sessionId + "-";
+                    // lets try look up the current ID if we failed 
+                    // in the middle of creating the znode
+                    findPrefixInChildren(prefix, zookeeper, dir);
+                    idName = new ZNodeName(id);
+                }
+                if (id != null) {
+                    List<String> names = zookeeper.getChildren(dir, false);
+                    if (names.isEmpty()) {
+                        LOG.warn("No children in: " + dir + " when we've just " +
+                        "created one! Lets recreate it...");
+                        // lets force the recreation of the id
+                        id = null;
+                    } else {
+                        // lets sort them explicitly (though they do seem to come back in order ususally :)
+                        SortedSet<ZNodeName> sortedNames = new TreeSet<ZNodeName>();
+                        for (String name : names) {
+                            sortedNames.add(new ZNodeName(dir + "/" + name));
+                        }
+                        ownerId = sortedNames.first().getName();
+                        SortedSet<ZNodeName> lessThanMe = sortedNames.headSet(idName);
+                        if (!lessThanMe.isEmpty()) {
+                            ZNodeName lastChildName = lessThanMe.last();
+                            lastChildId = lastChildName.getName();
+                            if (LOG.isDebugEnabled()) {
+                                LOG.debug("watching less than me node: " + lastChildId);
+                            }
+                            Stat stat = zookeeper.exists(lastChildId, new LockWatcher());
+                            if (stat != null) {
+                                return Boolean.FALSE;
+                            } else {
+                                LOG.warn("Could not find the" +
+                                		" stats for less than me: " + lastChildName.getName());
+                            }
+                        } else {
+                            if (isOwner()) {
+                                if (callback != null) {
+                                    callback.lockAcquired();
+                                }
+                                return Boolean.TRUE;
+                            }
+                        }
+                    }
+                }
+            }
+            while (id == null);
+            return Boolean.FALSE;
+        }
+    };
+
+    /**
+     * Attempts to acquire the exclusive write lock returning whether or not it was
+     * acquired. Note that the exclusive lock may be acquired some time later after
+     * this method has been invoked due to the current lock owner going away.
+     */
+    public synchronized boolean lock() throws KeeperException, InterruptedException {
+        if (isClosed()) {
+            return false;
+        }
+        ensurePathExists(dir);
+
+        return (Boolean) retryOperation(zop);
+    }
+
+    /**
+     * return the parent dir for lock
+     * @return the parent dir used for locks.
+     */
+    public String getDir() {
+        return dir;
+    }
+
+    /**
+     * Returns true if this node is the owner of the
+     *  lock (or the leader)
+     */
+    public boolean isOwner() {
+        return id != null && ownerId != null && id.equals(ownerId);
+    }
+
+    /**
+     * return the id for this lock
+     * @return the id for this lock
+     */
+    public String getId() {
+       return this.id;
+    }
+}
+

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ZNodeName.java
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ZNodeName.java b/zookeeper-recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ZNodeName.java
new file mode 100644
index 0000000..2e32e59
--- /dev/null
+++ b/zookeeper-recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ZNodeName.java
@@ -0,0 +1,112 @@
+/**
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.zookeeper.recipes.lock;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Represents an ephemeral znode name which has an ordered sequence number
+ * and can be sorted in order
+ *
+ */
+class ZNodeName implements Comparable<ZNodeName> {
+    private final String name;
+    private String prefix;
+    private int sequence = -1;
+    private static final Logger LOG = LoggerFactory.getLogger(ZNodeName.class);
+    
+    public ZNodeName(String name) {
+        if (name == null) {
+            throw new NullPointerException("id cannot be null");
+        }
+        this.name = name;
+        this.prefix = name;
+        int idx = name.lastIndexOf('-');
+        if (idx >= 0) {
+            this.prefix = name.substring(0, idx);
+            try {
+                this.sequence = Integer.parseInt(name.substring(idx + 1));
+                // If an exception occurred we misdetected a sequence suffix,
+                // so return -1.
+            } catch (NumberFormatException e) {
+                LOG.info("Number format exception for " + idx, e);
+            } catch (ArrayIndexOutOfBoundsException e) {
+               LOG.info("Array out of bounds for " + idx, e);
+            }
+        }
+    }
+
+    @Override
+    public String toString() {
+        return name.toString();
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+
+        ZNodeName sequence = (ZNodeName) o;
+
+        if (!name.equals(sequence.name)) return false;
+
+        return true;
+    }
+
+    @Override
+    public int hashCode() {
+        return name.hashCode() + 37;
+    }
+
+    /**
+     * Compare znodes based on their sequence number
+     * @param that other znode to compare to
+     * @return the difference between their sequence numbers: a positive value if this
+     *         znode has a larger sequence number, 0 if they have the same sequence number
+     *         or a negative number if this znode has a lower sequence number
+     */
+    public int compareTo(ZNodeName that) {
+        int answer = this.sequence - that.sequence;
+        if (answer == 0) {
+            return this.prefix.compareTo(that.prefix);
+        }
+        return answer;
+    }
+
+    /**
+     * Returns the name of the znode
+     */
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * Returns the sequence number
+     */
+    public int getZNodeName() {
+        return sequence;
+    }
+
+    /**
+     * Returns the text prefix before the sequence number
+     */
+    public String getPrefix() {
+        return prefix;
+    }
+}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ZooKeeperOperation.java
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ZooKeeperOperation.java b/zookeeper-recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ZooKeeperOperation.java
new file mode 100644
index 0000000..54317ed
--- /dev/null
+++ b/zookeeper-recipes/lock/src/java/org/apache/zookeeper/recipes/lock/ZooKeeperOperation.java
@@ -0,0 +1,38 @@
+/**
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.zookeeper.recipes.lock;
+
+import org.apache.zookeeper.KeeperException;
+
+/**
+ * A callback object which can be used for implementing retry-able operations in the 
+ * {@link org.apache.zookeeper.recipes.lock.ProtocolSupport} class
+ *
+ */
+public interface ZooKeeperOperation {
+    
+    /**
+     * Performs the operation - which may be involved multiple times if the connection
+     * to ZooKeeper closes during this operation
+     *
+     * @return the result of the operation or null
+     * @throws KeeperException
+     * @throws InterruptedException
+     */
+    public boolean execute() throws KeeperException, InterruptedException;
+}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/test/org/apache/zookeeper/recipes/lock/WriteLockTest.java
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/test/org/apache/zookeeper/recipes/lock/WriteLockTest.java b/zookeeper-recipes/lock/test/org/apache/zookeeper/recipes/lock/WriteLockTest.java
new file mode 100644
index 0000000..52f9f57
--- /dev/null
+++ b/zookeeper-recipes/lock/test/org/apache/zookeeper/recipes/lock/WriteLockTest.java
@@ -0,0 +1,156 @@
+/**
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.zookeeper.recipes.lock;
+
+import org.apache.zookeeper.ZooKeeper;
+import org.apache.zookeeper.test.ClientBase;
+
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * test for writelock
+ */
+public class WriteLockTest extends ClientBase {
+    protected int sessionTimeout = 10 * 1000;
+    protected String dir = "/" + getClass().getName();
+    protected WriteLock[] nodes;
+    protected CountDownLatch latch = new CountDownLatch(1);
+    private boolean restartServer = true;
+    private boolean workAroundClosingLastZNodeFails = true;
+    private boolean killLeader = true;
+
+    @Test
+    public void testRun() throws Exception {
+        runTest(3);
+    }
+
+    class LockCallback implements LockListener {
+        public void lockAcquired() {
+            latch.countDown();
+        }
+
+        public void lockReleased() {
+            
+        }
+        
+    }
+    protected void runTest(int count) throws Exception {
+        nodes = new WriteLock[count];
+        for (int i = 0; i < count; i++) {
+            ZooKeeper keeper = createClient();
+            WriteLock leader = new WriteLock(keeper, dir, null);
+            leader.setLockListener(new LockCallback());
+            nodes[i] = leader;
+
+            leader.lock();
+        }
+
+        // lets wait for any previous leaders to die and one of our new
+        // nodes to become the new leader
+        latch.await(30, TimeUnit.SECONDS);
+
+        WriteLock first = nodes[0];
+        dumpNodes(count);
+
+        // lets assert that the first election is the leader
+        Assert.assertTrue("The first znode should be the leader " + first.getId(), first.isOwner());
+
+        for (int i = 1; i < count; i++) {
+            WriteLock node = nodes[i];
+            Assert.assertFalse("Node should not be the leader " + node.getId(), node.isOwner());
+        }
+
+        if (count > 1) {
+            if (killLeader) {
+            System.out.println("Now killing the leader");
+            // now lets kill the leader
+            latch = new CountDownLatch(1);
+            first.unlock();
+            latch.await(30, TimeUnit.SECONDS);
+            //Thread.sleep(10000);
+            WriteLock second = nodes[1];
+            dumpNodes(count);
+            // lets assert that the first election is the leader
+            Assert.assertTrue("The second znode should be the leader " + second.getId(), second.isOwner());
+
+            for (int i = 2; i < count; i++) {
+                WriteLock node = nodes[i];
+                Assert.assertFalse("Node should not be the leader " + node.getId(), node.isOwner());
+            }
+            }
+
+
+            if (restartServer) {
+                // now lets stop the server
+                System.out.println("Now stopping the server");
+                stopServer();
+                Thread.sleep(10000);
+
+                // TODO lets assert that we are no longer the leader
+                dumpNodes(count);
+
+                System.out.println("Starting the server");
+                startServer();
+                Thread.sleep(10000);
+
+                for (int i = 0; i < count - 1; i++) {
+                    System.out.println("Calling acquire for node: " + i);
+                    nodes[i].lock();
+                }
+                dumpNodes(count);
+                System.out.println("Now closing down...");
+            }
+        }
+    }
+
+    protected void dumpNodes(int count) {
+        for (int i = 0; i < count; i++) {
+            WriteLock node = nodes[i];
+            System.out.println("node: " + i + " id: " + 
+                    node.getId() + " is leader: " + node.isOwner());
+        }
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        if (nodes != null) {
+            for (int i = 0; i < nodes.length; i++) {
+                WriteLock node = nodes[i];
+                if (node != null) {
+                    System.out.println("Closing node: " + i);
+                    node.close();
+                    if (workAroundClosingLastZNodeFails && i == nodes.length - 1) {
+                        System.out.println("Not closing zookeeper: " + i + " due to bug!");
+                    } else {
+                        System.out.println("Closing zookeeper: " + i);
+                        node.getZookeeper().close();
+                        System.out.println("Closed zookeeper: " + i);
+                    }
+                }
+            }
+        }
+        System.out.println("Now lets stop the server");
+        super.tearDown();
+
+    }
+}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/lock/test/org/apache/zookeeper/recipes/lock/ZNodeNameTest.java
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/lock/test/org/apache/zookeeper/recipes/lock/ZNodeNameTest.java b/zookeeper-recipes/lock/test/org/apache/zookeeper/recipes/lock/ZNodeNameTest.java
new file mode 100644
index 0000000..773c2ec
--- /dev/null
+++ b/zookeeper-recipes/lock/test/org/apache/zookeeper/recipes/lock/ZNodeNameTest.java
@@ -0,0 +1,71 @@
+/**
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.zookeeper.recipes.lock;
+
+import junit.framework.TestCase;
+
+import java.util.SortedSet;
+import java.util.TreeSet;
+
+import org.junit.Test;
+
+/**
+ * test for znodenames
+ */
+public class ZNodeNameTest extends TestCase {
+    @Test
+    public void testOrderWithSamePrefix() throws Exception {
+        String[] names = { "x-3", "x-5", "x-11", "x-1" };
+        String[] expected = { "x-1", "x-3", "x-5", "x-11" };
+        assertOrderedNodeNames(names, expected);
+    }
+    @Test
+    public void testOrderWithDifferentPrefixes() throws Exception {
+        String[] names = { "r-3", "r-2", "r-1", "w-2", "w-1" };
+        String[] expected = { "r-1", "w-1", "r-2", "w-2", "r-3" };
+        assertOrderedNodeNames(names, expected);
+    }
+    @Test
+    public void testOrderWithDifferentPrefixIncludingSessionId() throws Exception {
+        String[] names = { "x-242681582799028564-0000000002", "x-170623981976748329-0000000003", "x-98566387950223723-0000000001" };
+        String[] expected = { "x-98566387950223723-0000000001", "x-242681582799028564-0000000002", "x-170623981976748329-0000000003" };
+        assertOrderedNodeNames(names, expected);
+    }
+    @Test
+    public void testOrderWithExtraPrefixes() throws Exception {
+        String[] names = { "r-1-3-2", "r-2-2-1", "r-3-1-3" };
+        String[] expected = { "r-2-2-1", "r-1-3-2", "r-3-1-3" };
+        assertOrderedNodeNames(names, expected);
+    }
+
+    protected void assertOrderedNodeNames(String[] names, String[] expected) {
+        int size = names.length;
+        SortedSet<ZNodeName> nodeNames = new TreeSet<ZNodeName>();
+        for (String name : names) {
+            nodeNames.add(new ZNodeName(name));
+        }
+        assertEquals("The SortedSet does not have the expected size!", nodeNames.size(), expected.length);
+
+        int index = 0;
+        for (ZNodeName nodeName : nodeNames) {
+            String name = nodeName.getName();
+            assertEquals("Node " + index, expected[index++], name);
+        }
+    }
+
+}

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/queue/README.txt
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/queue/README.txt b/zookeeper-recipes/queue/README.txt
new file mode 100644
index 0000000..d59a3c3
--- /dev/null
+++ b/zookeeper-recipes/queue/README.txt
@@ -0,0 +1,30 @@
+<!--
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You under the Apache License, Version 2.0
+   (the "License"); you may not use this file except in compliance with
+   the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+-->
+
+1) This queue interface recipe implements the queue recipe
+mentioned in ../../../docs/recipes.[html,pdf].
+A more detailed explanation is at http://www.cloudera.com/blog/2009/05/28/building-a-distributed-concurrent-queue-with-apache-zookeeper/
+
+2) This recipe does not handle KeeperException.ConnectionLossException or ZCONNECTIONLOSS. It will only work correctly once ZOOKEEPER-22 https://issues.apache.org/jira/browse/ZOOKEEPER-22 is resolved.
+
+3) To compile the queue java recipe you can just run ant jar from 
+this directory. 
+Please report any bugs on the jira 
+
+http://issues.apache.org/jira/browse/ZOOKEEPER
+
+  

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/queue/build.xml
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/queue/build.xml b/zookeeper-recipes/queue/build.xml
new file mode 100644
index 0000000..0f3505a
--- /dev/null
+++ b/zookeeper-recipes/queue/build.xml
@@ -0,0 +1,128 @@
+<!--
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You under the Apache License, Version 2.0
+   (the "License"); you may not use this file except in compliance with
+   the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+-->
+
+<project name="queue" default="jar">
+  <import file="../build-recipes.xml"/>
+    <property name="test.main.classes" value="${zk.root}/build/test/classes"/>
+    <property name="test.build.dir" value="${build.test}" />
+    <property name="test.src.dir" value="test"/>
+    <property name="test.log.dir" value="${test.build.dir}/logs" />
+    <property name="test.data.dir" value="${test.build.dir}/data" />
+    <property name="test.data.upgrade.dir" value="${test.data.dir}/upgrade" />
+    <property name="test.tmp.dir" value="${test.build.dir}/tmp" />
+    <property name="test.output" value="no" />
+    <property name="test.timeout" value="900000" />
+    <property name="test.junit.output.format" value="plain" />
+    <property name="test.junit.fork.mode" value="perTest" />
+    <property name="test.junit.printsummary" value="yes" />
+    <property name="test.junit.haltonfailure" value="no" />
+    <property name="test.junit.maxmem" value="512m" />
+
+  <target name="setjarname">
+    <property name="jarname"
+              value="${build.dir}/zookeeper-${version}-recipes-${name}.jar"/>
+  </target>
+
+  <!-- Override jar target to specify main class -->
+  <target name="jar" depends="checkMainCompiled, setjarname, compile">
+    <echo message="recipes: ${name}"/>
+
+    <jar jarfile="${jarname}">
+      <fileset file="${zk.root}/LICENSE.txt" />
+      <fileset dir="${build.classes}"/>
+      <fileset dir="${build.test}"/>
+    </jar>
+  </target>
+
+	<target name="test" depends="compile-test,test-init,test-category,junit.run" />
+
+	<target name="compile-test" depends="compile">
+  		<property name="target.jdk" value="${ant.java.version}" />	
+		<property name="src.test.local" location="${basedir}/test" />
+		<mkdir dir="${build.test}"/>
+		<javac srcdir="${src.test.local}" 
+			destdir="${build.test}" 
+			target="${target.jdk}" 
+			debug="on" >
+			<classpath refid="classpath" />
+                        <classpath>
+                        <pathelement path="${test.main.classes}"/>
+                        </classpath>
+		</javac>
+	</target>
+	
+    <target name="test-init" depends="jar,compile-test">
+        <delete dir="${test.log.dir}" />
+        <delete dir="${test.tmp.dir}" />
+        <delete dir="${test.data.dir}" />
+        <mkdir dir="${test.log.dir}" />
+        <mkdir dir="${test.tmp.dir}" />
+        <mkdir dir="${test.data.dir}" />
+    </target>
+
+	<target name="test-category">
+         <property name="test.category" value=""/>
+    </target>
+
+	<target name="junit.run">
+		<echo message="${test.src.dir}" />
+        <junit showoutput="${test.output}"
+               printsummary="${test.junit.printsummary}"
+               haltonfailure="${test.junit.haltonfailure}"
+               fork="yes"
+               forkmode="${test.junit.fork.mode}"
+               maxmemory="${test.junit.maxmem}"
+               dir="${basedir}" timeout="${test.timeout}"
+               errorProperty="tests.failed" failureProperty="tests.failed">
+          <sysproperty key="build.test.dir" value="${test.tmp.dir}" />
+          <sysproperty key="test.data.dir" value="${test.data.dir}" />
+          <sysproperty key="log4j.configuration"
+                    value="file:${basedir}/conf/log4j.properties" />
+          <classpath refid="classpath"/>
+          <classpath>
+             <pathelement path="${build.test}" />
+             <pathelement path="${test.main.classes}"/>
+          </classpath>
+          <formatter type="${test.junit.output.format}" />
+          <batchtest todir="${test.log.dir}" unless="testcase">
+              <fileset dir="${test.src.dir}"
+                     includes="**/*${test.category}Test.java"/>
+          </batchtest>
+          <batchtest todir="${test.log.dir}" if="testcase">
+              <fileset dir="${test.src.dir}" includes="**/${testcase}.java"/>
+          </batchtest>
+       </junit>
+            <fail if="tests.failed">Tests failed!</fail>
+    </target>
+
+  <target name="package" depends="jar, zookeeperbuildrecipes.package"
+          unless="skip.recipes">
+
+    <copy file="${basedir}/build.xml" todir="${dist.dir}${package.share}/recipes/${name}"/>
+
+    <mkdir dir="${dist.dir}${package.share}/recipes/${name}/test"/>
+    <copy todir="${dist.dir}${package.share}/recipes/${name}/test">
+      <fileset dir="${basedir}/test"/>
+    </copy>
+    <mkdir dir="${dist.dir}${package.share}/recipes/${name}/src"/>
+    <copy todir="${dist.dir}${package.share}/recipes/${name}/src">
+      <fileset dir="${basedir}/src"/>
+    </copy>
+  </target>
+
+</project>
+

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/queue/src/c/INSTALL
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/queue/src/c/INSTALL b/zookeeper-recipes/queue/src/c/INSTALL
new file mode 100644
index 0000000..5458714
--- /dev/null
+++ b/zookeeper-recipes/queue/src/c/INSTALL
@@ -0,0 +1,234 @@
+Installation Instructions
+*************************
+
+Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005,
+2006 Free Software Foundation, Inc.
+
+This file is free documentation; the Free Software Foundation gives
+unlimited permission to copy, distribute and modify it.
+
+Basic Installation
+==================
+
+Briefly, the shell commands `./configure; make; make install' should
+configure, build, and install this package.  The following
+more-detailed instructions are generic; see the `README' file for
+instructions specific to this package.
+
+   The `configure' shell script attempts to guess correct values for
+various system-dependent variables used during compilation.  It uses
+those values to create a `Makefile' in each directory of the package.
+It may also create one or more `.h' files containing system-dependent
+definitions.  Finally, it creates a shell script `config.status' that
+you can run in the future to recreate the current configuration, and a
+file `config.log' containing compiler output (useful mainly for
+debugging `configure').
+
+   It can also use an optional file (typically called `config.cache'
+and enabled with `--cache-file=config.cache' or simply `-C') that saves
+the results of its tests to speed up reconfiguring.  Caching is
+disabled by default to prevent problems with accidental use of stale
+cache files.
+
+   If you need to do unusual things to compile the package, please try
+to figure out how `configure' could check whether to do them, and mail
+diffs or instructions to the address given in the `README' so they can
+be considered for the next release.  If you are using the cache, and at
+some point `config.cache' contains results you don't want to keep, you
+may remove or edit it.
+
+   The file `configure.ac' (or `configure.in') is used to create
+`configure' by a program called `autoconf'.  You need `configure.ac' if
+you want to change it or regenerate `configure' using a newer version
+of `autoconf'.
+
+The simplest way to compile this package is:
+
+  1. `cd' to the directory containing the package's source code and type
+     `./configure' to configure the package for your system.
+
+     Running `configure' might take a while.  While running, it prints
+     some messages telling which features it is checking for.
+
+  2. Type `make' to compile the package.
+
+  3. Optionally, type `make check' to run any self-tests that come with
+     the package.
+
+  4. Type `make install' to install the programs and any data files and
+     documentation.
+
+  5. You can remove the program binaries and object files from the
+     source code directory by typing `make clean'.  To also remove the
+     files that `configure' created (so you can compile the package for
+     a different kind of computer), type `make distclean'.  There is
+     also a `make maintainer-clean' target, but that is intended mainly
+     for the package's developers.  If you use it, you may have to get
+     all sorts of other programs in order to regenerate files that came
+     with the distribution.
+
+Compilers and Options
+=====================
+
+Some systems require unusual options for compilation or linking that the
+`configure' script does not know about.  Run `./configure --help' for
+details on some of the pertinent environment variables.
+
+   You can give `configure' initial values for configuration parameters
+by setting variables in the command line or in the environment.  Here
+is an example:
+
+     ./configure CC=c99 CFLAGS=-g LIBS=-lposix
+
+   *Note Defining Variables::, for more details.
+
+Compiling For Multiple Architectures
+====================================
+
+You can compile the package for more than one kind of computer at the
+same time, by placing the object files for each architecture in their
+own directory.  To do this, you can use GNU `make'.  `cd' to the
+directory where you want the object files and executables to go and run
+the `configure' script.  `configure' automatically checks for the
+source code in the directory that `configure' is in and in `..'.
+
+   With a non-GNU `make', it is safer to compile the package for one
+architecture at a time in the source code directory.  After you have
+installed the package for one architecture, use `make distclean' before
+reconfiguring for another architecture.
+
+Installation Names
+==================
+
+By default, `make install' installs the package's commands under
+`/usr/local/bin', include files under `/usr/local/include', etc.  You
+can specify an installation prefix other than `/usr/local' by giving
+`configure' the option `--prefix=PREFIX'.
+
+   You can specify separate installation prefixes for
+architecture-specific files and architecture-independent files.  If you
+pass the option `--exec-prefix=PREFIX' to `configure', the package uses
+PREFIX as the prefix for installing programs and libraries.
+Documentation and other data files still use the regular prefix.
+
+   In addition, if you use an unusual directory layout you can give
+options like `--bindir=DIR' to specify different values for particular
+kinds of files.  Run `configure --help' for a list of the directories
+you can set and what kinds of files go in them.
+
+   If the package supports it, you can cause programs to be installed
+with an extra prefix or suffix on their names by giving `configure' the
+option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
+
+Optional Features
+=================
+
+Some packages pay attention to `--enable-FEATURE' options to
+`configure', where FEATURE indicates an optional part of the package.
+They may also pay attention to `--with-PACKAGE' options, where PACKAGE
+is something like `gnu-as' or `x' (for the X Window System).  The
+`README' should mention any `--enable-' and `--with-' options that the
+package recognizes.
+
+   For packages that use the X Window System, `configure' can usually
+find the X include and library files automatically, but if it doesn't,
+you can use the `configure' options `--x-includes=DIR' and
+`--x-libraries=DIR' to specify their locations.
+
+Specifying the System Type
+==========================
+
+There may be some features `configure' cannot figure out automatically,
+but needs to determine by the type of machine the package will run on.
+Usually, assuming the package is built to be run on the _same_
+architectures, `configure' can figure that out, but if it prints a
+message saying it cannot guess the machine type, give it the
+`--build=TYPE' option.  TYPE can either be a short name for the system
+type, such as `sun4', or a canonical name which has the form:
+
+     CPU-COMPANY-SYSTEM
+
+where SYSTEM can have one of these forms:
+
+     OS KERNEL-OS
+
+   See the file `config.sub' for the possible values of each field.  If
+`config.sub' isn't included in this package, then this package doesn't
+need to know the machine type.
+
+   If you are _building_ compiler tools for cross-compiling, you should
+use the option `--target=TYPE' to select the type of system they will
+produce code for.
+
+   If you want to _use_ a cross compiler, that generates code for a
+platform different from the build platform, you should specify the
+"host" platform (i.e., that on which the generated programs will
+eventually be run) with `--host=TYPE'.
+
+Sharing Defaults
+================
+
+If you want to set default values for `configure' scripts to share, you
+can create a site shell script called `config.site' that gives default
+values for variables like `CC', `cache_file', and `prefix'.
+`configure' looks for `PREFIX/share/config.site' if it exists, then
+`PREFIX/etc/config.site' if it exists.  Or, you can set the
+`CONFIG_SITE' environment variable to the location of the site script.
+A warning: not all `configure' scripts look for a site script.
+
+Defining Variables
+==================
+
+Variables not defined in a site shell script can be set in the
+environment passed to `configure'.  However, some packages may run
+configure again during the build, and the customized values of these
+variables may be lost.  In order to avoid this problem, you should set
+them in the `configure' command line, using `VAR=value'.  For example:
+
+     ./configure CC=/usr/local2/bin/gcc
+
+causes the specified `gcc' to be used as the C compiler (unless it is
+overridden in the site shell script).
+
+Unfortunately, this technique does not work for `CONFIG_SHELL' due to
+an Autoconf bug.  Until the bug is fixed you can use this workaround:
+
+     CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash
+
+`configure' Invocation
+======================
+
+`configure' recognizes the following options to control how it operates.
+
+`--help'
+`-h'
+     Print a summary of the options to `configure', and exit.
+
+`--version'
+`-V'
+     Print the version of Autoconf used to generate the `configure'
+     script, and exit.
+
+`--cache-file=FILE'
+     Enable the cache: use and save the results of the tests in FILE,
+     traditionally `config.cache'.  FILE defaults to `/dev/null' to
+     disable caching.
+
+`--config-cache'
+`-C'
+     Alias for `--cache-file=config.cache'.
+
+`--quiet'
+`--silent'
+`-q'
+     Do not print messages saying which checks are being made.  To
+     suppress all normal output, redirect it to `/dev/null' (any error
+     messages will still be shown).
+
+`--srcdir=DIR'
+     Look for the package's source code in directory DIR.  Usually
+     `configure' can determine that directory automatically.
+
+`configure' also accepts some other, not widely useful, options.  Run
+`configure --help' for more details.
+

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/queue/src/c/LICENSE
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/queue/src/c/LICENSE b/zookeeper-recipes/queue/src/c/LICENSE
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/zookeeper-recipes/queue/src/c/LICENSE
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
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+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/queue/src/c/Makefile.am
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/queue/src/c/Makefile.am b/zookeeper-recipes/queue/src/c/Makefile.am
new file mode 100644
index 0000000..ecef3cc
--- /dev/null
+++ b/zookeeper-recipes/queue/src/c/Makefile.am
@@ -0,0 +1,46 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+include $(top_srcdir)/aminclude.am
+
+AM_CFLAGS = -Wall -fPIC -I${ZOOKEEPER_PATH}/include -I${ZOOKEEPER_PATH}/generated \
+  -I$(top_srcdir)/include -I/usr/include 
+AM_CPPFLAGS = -Wall -I${ZOOKEEPER_PATH}/include -I${ZOOKEEPER_PATH}/generated\
+  -I${top_srcdir}/include -I/usr/include
+EXTRA_DIST = LICENSE
+lib_LTLIBRARIES = libzooqueue.la
+libzooqueue_la_SOURCES = src/zoo_queue.c include/zoo_queue.h
+libzooqueue_la_CPPFLAGS = -DDLOPEN_MODULE
+libzooqueue_la_LDFLAGS = -version-info 0:1:0
+
+#run the tests now
+
+TEST_SOURCES = tests/TestDriver.cc tests/TestClient.cc tests/Util.cc 
+
+
+check_PROGRAMS = zkqueuetest
+nodist_zkqueuetest_SOURCES = ${TEST_SOURCES}
+zkqueuetest_LDADD =  ${ZOOKEEPER_LD} libzooqueue.la -lpthread  ${CPPUNIT_LIBS}
+zkqueuetest_CXXFLAGS = -DUSE_STATIC_LIB ${CPPUNIT_CFLAGS}
+
+run-check: check
+	./zkqueuetest ${TEST_OPTIONS}
+
+clean-local: clean-check
+	${RM} ${DX_CLEANFILES}
+
+clean-check:
+	${RM} ${nodist_zkqueuetest_OBJECTS} 

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/queue/src/c/README.txt
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/queue/src/c/README.txt b/zookeeper-recipes/queue/src/c/README.txt
new file mode 100644
index 0000000..7ef253f
--- /dev/null
+++ b/zookeeper-recipes/queue/src/c/README.txt
@@ -0,0 +1,30 @@
+                     Zookeeper C queue client library 
+
+
+INSTALLATION
+
+If you're building the client from a source checkout you need to
+follow the steps outlined below. If you're building from a release
+tar downloaded from Apache please skip to step 2.
+
+This recipe does not handle ZCONNECTIONLOSS. It will only work correctly once ZOOKEEPER-22 https://issues.apache.org/jira/browse/ZOOKEEPER-22 is resolved.
+
+1) make sure that you compile the main zookeeper c client library.
+ 
+2) change directory to src/recipes/queue/src/c 
+    and do a "autoreconf -if" to bootstrap
+   autoconf, automake and libtool. Please make sure you have autoconf
+   version 2.59 or greater installed.
+3) do a "./configure [OPTIONS]" to generate the makefile. See INSTALL
+   for general information about running configure.
+
+4) do a "make" or "make install" to build the libraries and install them. 
+   Alternatively, you can also build and run a unit test suite (and
+   you probably should).  Please make sure you have cppunit-1.10.x or
+   higher installed before you execute step 4.  Once ./configure has
+   finished, do a "make run-check". It will build the libraries, build
+   the tests and run them.
+5) to generate doxygen documentation do a "make doxygen-doc". All
+   documentations will be placed to a new subfolder named docs. By
+   default only HTML documentation is generated.  For information on
+   other document formats please use "./configure --help"

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/queue/src/c/acinclude.m4
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/queue/src/c/acinclude.m4 b/zookeeper-recipes/queue/src/c/acinclude.m4
new file mode 100644
index 0000000..d0041d8
--- /dev/null
+++ b/zookeeper-recipes/queue/src/c/acinclude.m4
@@ -0,0 +1,312 @@
+# This file is part of Autoconf.                       -*- Autoconf -*-
+
+# Copyright (C) 2004 Oren Ben-Kiki
+# This file is distributed under the same terms as the Autoconf macro files.
+
+# Generate automatic documentation using Doxygen. Works in concert with the
+# aminclude.m4 file and a compatible doxygen configuration file. Defines the
+# following public macros:
+#
+# DX_???_FEATURE(ON|OFF) - control the default setting fo a Doxygen feature.
+# Supported features are 'DOXYGEN' itself, 'DOT' for generating graphics,
+# 'HTML' for plain HTML, 'CHM' for compressed HTML help (for MS users), 'CHI'
+# for generating a seperate .chi file by the .chm file, and 'MAN', 'RTF',
+# 'XML', 'PDF' and 'PS' for the appropriate output formats. The environment
+# variable DOXYGEN_PAPER_SIZE may be specified to override the default 'a4wide'
+# paper size.
+#
+# By default, HTML, PDF and PS documentation is generated as this seems to be
+# the most popular and portable combination. MAN pages created by Doxygen are
+# usually problematic, though by picking an appropriate subset and doing some
+# massaging they might be better than nothing. CHM and RTF are specific for MS
+# (note that you can't generate both HTML and CHM at the same time). The XML is
+# rather useless unless you apply specialized post-processing to it.
+#
+# The macro mainly controls the default state of the feature. The use can
+# override the default by specifying --enable or --disable. The macros ensure
+# that contradictory flags are not given (e.g., --enable-doxygen-html and
+# --enable-doxygen-chm, --enable-doxygen-anything with --disable-doxygen, etc.)
+# Finally, each feature will be automatically disabled (with a warning) if the
+# required programs are missing.
+#
+# Once all the feature defaults have been specified, call DX_INIT_DOXYGEN with
+# the following parameters: a one-word name for the project for use as a
+# filename base etc., an optional configuration file name (the default is
+# 'Doxyfile', the same as Doxygen's default), and an optional output directory
+# name (the default is 'doxygen-doc').
+
+## ----------##
+## Defaults. ##
+## ----------##
+
+DX_ENV=""
+AC_DEFUN([DX_FEATURE_doc],  ON)
+AC_DEFUN([DX_FEATURE_dot],  ON)
+AC_DEFUN([DX_FEATURE_man],  OFF)
+AC_DEFUN([DX_FEATURE_html], ON)
+AC_DEFUN([DX_FEATURE_chm],  OFF)
+AC_DEFUN([DX_FEATURE_chi],  OFF)
+AC_DEFUN([DX_FEATURE_rtf],  OFF)
+AC_DEFUN([DX_FEATURE_xml],  OFF)
+AC_DEFUN([DX_FEATURE_pdf],  ON)
+AC_DEFUN([DX_FEATURE_ps],   ON)
+
+## --------------- ##
+## Private macros. ##
+## --------------- ##
+
+# DX_ENV_APPEND(VARIABLE, VALUE)
+# ------------------------------
+# Append VARIABLE="VALUE" to DX_ENV for invoking doxygen.
+AC_DEFUN([DX_ENV_APPEND], [AC_SUBST([DX_ENV], ["$DX_ENV $1='$2'"])])
+
+# DX_DIRNAME_EXPR
+# ---------------
+# Expand into a shell expression prints the directory part of a path.
+AC_DEFUN([DX_DIRNAME_EXPR],
+         [[expr ".$1" : '\(\.\)[^/]*$' \| "x$1" : 'x\(.*\)/[^/]*$']])
+
+# DX_IF_FEATURE(FEATURE, IF-ON, IF-OFF)
+# -------------------------------------
+# Expands according to the M4 (static) status of the feature.
+AC_DEFUN([DX_IF_FEATURE], [ifelse(DX_FEATURE_$1, ON, [$2], [$3])])
+
+# DX_REQUIRE_PROG(VARIABLE, PROGRAM)
+# ----------------------------------
+# Require the specified program to be found for the DX_CURRENT_FEATURE to work.
+AC_DEFUN([DX_REQUIRE_PROG], [
+AC_PATH_TOOL([$1], [$2])
+if test "$DX_FLAG_$[DX_CURRENT_FEATURE$$1]" = 1; then
+    AC_MSG_WARN([$2 not found - will not DX_CURRENT_DESCRIPTION])
+    AC_SUBST([DX_FLAG_]DX_CURRENT_FEATURE, 0)
+fi
+])
+
+# DX_TEST_FEATURE(FEATURE)
+# ------------------------
+# Expand to a shell expression testing whether the feature is active.
+AC_DEFUN([DX_TEST_FEATURE], [test "$DX_FLAG_$1" = 1])
+
+# DX_CHECK_DEPEND(REQUIRED_FEATURE, REQUIRED_STATE)
+# -------------------------------------------------
+# Verify that a required features has the right state before trying to turn on
+# the DX_CURRENT_FEATURE.
+AC_DEFUN([DX_CHECK_DEPEND], [
+test "$DX_FLAG_$1" = "$2" \
+|| AC_MSG_ERROR([doxygen-DX_CURRENT_FEATURE ifelse([$2], 1,
+                            requires, contradicts) doxygen-DX_CURRENT_FEATURE])
+])
+
+# DX_CLEAR_DEPEND(FEATURE, REQUIRED_FEATURE, REQUIRED_STATE)
+# ----------------------------------------------------------
+# Turn off the DX_CURRENT_FEATURE if the required feature is off.
+AC_DEFUN([DX_CLEAR_DEPEND], [
+test "$DX_FLAG_$1" = "$2" || AC_SUBST([DX_FLAG_]DX_CURRENT_FEATURE, 0)
+])
+
+# DX_FEATURE_ARG(FEATURE, DESCRIPTION,
+#                CHECK_DEPEND, CLEAR_DEPEND,
+#                REQUIRE, DO-IF-ON, DO-IF-OFF)
+# --------------------------------------------
+# Parse the command-line option controlling a feature. CHECK_DEPEND is called
+# if the user explicitly turns the feature on (and invokes DX_CHECK_DEPEND),
+# otherwise CLEAR_DEPEND is called to turn off the default state if a required
+# feature is disabled (using DX_CLEAR_DEPEND). REQUIRE performs additional
+# requirement tests (DX_REQUIRE_PROG). Finally, an automake flag is set and
+# DO-IF-ON or DO-IF-OFF are called according to the final state of the feature.
+AC_DEFUN([DX_ARG_ABLE], [
+    AC_DEFUN([DX_CURRENT_FEATURE], [$1])
+    AC_DEFUN([DX_CURRENT_DESCRIPTION], [$2])
+    AC_ARG_ENABLE(doxygen-$1,
+                  [AS_HELP_STRING(DX_IF_FEATURE([$1], [--disable-doxygen-$1],
+                                                      [--enable-doxygen-$1]),
+                                  DX_IF_FEATURE([$1], [don't $2], [$2]))],
+                  [
+case "$enableval" in
+#(
+y|Y|yes|Yes|YES)
+    AC_SUBST([DX_FLAG_$1], 1)
+    $3
+;; #(
+n|N|no|No|NO)
+    AC_SUBST([DX_FLAG_$1], 0)
+;; #(
+*)
+    AC_MSG_ERROR([invalid value '$enableval' given to doxygen-$1])
+;;
+esac
+], [
+AC_SUBST([DX_FLAG_$1], [DX_IF_FEATURE([$1], 1, 0)])
+$4
+])
+if DX_TEST_FEATURE([$1]); then
+    $5
+    :
+fi
+if DX_TEST_FEATURE([$1]); then
+    AM_CONDITIONAL(DX_COND_$1, :)
+    $6
+    :
+else
+    AM_CONDITIONAL(DX_COND_$1, false)
+    $7
+    :
+fi
+])
+
+## -------------- ##
+## Public macros. ##
+## -------------- ##
+
+# DX_XXX_FEATURE(DEFAULT_STATE)
+# -----------------------------
+AC_DEFUN([DX_DOXYGEN_FEATURE], [AC_DEFUN([DX_FEATURE_doc],  [$1])])
+AC_DEFUN([DX_MAN_FEATURE],     [AC_DEFUN([DX_FEATURE_man],  [$1])])
+AC_DEFUN([DX_HTML_FEATURE],    [AC_DEFUN([DX_FEATURE_html], [$1])])
+AC_DEFUN([DX_CHM_FEATURE],     [AC_DEFUN([DX_FEATURE_chm],  [$1])])
+AC_DEFUN([DX_CHI_FEATURE],     [AC_DEFUN([DX_FEATURE_chi],  [$1])])
+AC_DEFUN([DX_RTF_FEATURE],     [AC_DEFUN([DX_FEATURE_rtf],  [$1])])
+AC_DEFUN([DX_XML_FEATURE],     [AC_DEFUN([DX_FEATURE_xml],  [$1])])
+AC_DEFUN([DX_XML_FEATURE],     [AC_DEFUN([DX_FEATURE_xml],  [$1])])
+AC_DEFUN([DX_PDF_FEATURE],     [AC_DEFUN([DX_FEATURE_pdf],  [$1])])
+AC_DEFUN([DX_PS_FEATURE],      [AC_DEFUN([DX_FEATURE_ps],   [$1])])
+
+# DX_INIT_DOXYGEN(PROJECT, [CONFIG-FILE], [OUTPUT-DOC-DIR])
+# ---------------------------------------------------------
+# PROJECT also serves as the base name for the documentation files.
+# The default CONFIG-FILE is "Doxyfile" and OUTPUT-DOC-DIR is "doxygen-doc".
+AC_DEFUN([DX_INIT_DOXYGEN], [
+
+# Files:
+AC_SUBST([DX_PROJECT], [$1])
+AC_SUBST([DX_CONFIG], [ifelse([$2], [], Doxyfile, [$2])])
+AC_SUBST([DX_DOCDIR], [ifelse([$3], [], doxygen-doc, [$3])])
+
+# Environment variables used inside doxygen.cfg:
+DX_ENV_APPEND(SRCDIR, $srcdir)
+DX_ENV_APPEND(PROJECT, $DX_PROJECT)
+DX_ENV_APPEND(DOCDIR, $DX_DOCDIR)
+DX_ENV_APPEND(VERSION, $PACKAGE_VERSION)
+
+# Doxygen itself:
+DX_ARG_ABLE(doc, [generate any doxygen documentation],
+            [],
+            [],
+            [DX_REQUIRE_PROG([DX_DOXYGEN], doxygen)
+             DX_REQUIRE_PROG([DX_PERL], perl)],
+            [DX_ENV_APPEND(PERL_PATH, $DX_PERL)])
+
+# Dot for graphics:
+DX_ARG_ABLE(dot, [generate graphics for doxygen documentation],
+            [DX_CHECK_DEPEND(doc, 1)],
+            [DX_CLEAR_DEPEND(doc, 1)],
+            [DX_REQUIRE_PROG([DX_DOT], dot)],
+            [DX_ENV_APPEND(HAVE_DOT, YES)
+             DX_ENV_APPEND(DOT_PATH, [`DX_DIRNAME_EXPR($DX_DOT)`])],
+            [DX_ENV_APPEND(HAVE_DOT, NO)])
+
+# Man pages generation:
+DX_ARG_ABLE(man, [generate doxygen manual pages],
+            [DX_CHECK_DEPEND(doc, 1)],
+            [DX_CLEAR_DEPEND(doc, 1)],
+            [],
+            [DX_ENV_APPEND(GENERATE_MAN, YES)],
+            [DX_ENV_APPEND(GENERATE_MAN, NO)])
+
+# RTF file generation:
+DX_ARG_ABLE(rtf, [generate doxygen RTF documentation],
+            [DX_CHECK_DEPEND(doc, 1)],
+            [DX_CLEAR_DEPEND(doc, 1)],
+            [],
+            [DX_ENV_APPEND(GENERATE_RTF, YES)],
+            [DX_ENV_APPEND(GENERATE_RTF, NO)])
+
+# XML file generation:
+DX_ARG_ABLE(xml, [generate doxygen XML documentation],
+            [DX_CHECK_DEPEND(doc, 1)],
+            [DX_CLEAR_DEPEND(doc, 1)],
+            [],
+            [DX_ENV_APPEND(GENERATE_XML, YES)],
+            [DX_ENV_APPEND(GENERATE_XML, NO)])
+
+# (Compressed) HTML help generation:
+DX_ARG_ABLE(chm, [generate doxygen compressed HTML help documentation],
+            [DX_CHECK_DEPEND(doc, 1)],
+            [DX_CLEAR_DEPEND(doc, 1)],
+            [DX_REQUIRE_PROG([DX_HHC], hhc)],
+            [DX_ENV_APPEND(HHC_PATH, $DX_HHC)
+             DX_ENV_APPEND(GENERATE_HTML, YES)
+             DX_ENV_APPEND(GENERATE_HTMLHELP, YES)],
+            [DX_ENV_APPEND(GENERATE_HTMLHELP, NO)])
+
+# Seperate CHI file generation.
+DX_ARG_ABLE(chi, [generate doxygen seperate compressed HTML help index file],
+            [DX_CHECK_DEPEND(chm, 1)],
+            [DX_CLEAR_DEPEND(chm, 1)],
+            [],
+            [DX_ENV_APPEND(GENERATE_CHI, YES)],
+            [DX_ENV_APPEND(GENERATE_CHI, NO)])
+
+# Plain HTML pages generation:
+DX_ARG_ABLE(html, [generate doxygen plain HTML documentation],
+            [DX_CHECK_DEPEND(doc, 1) DX_CHECK_DEPEND(chm, 0)],
+            [DX_CLEAR_DEPEND(doc, 1) DX_CLEAR_DEPEND(chm, 0)],
+            [],
+            [DX_ENV_APPEND(GENERATE_HTML, YES)],
+            [DX_TEST_FEATURE(chm) || DX_ENV_APPEND(GENERATE_HTML, NO)])
+
+# PostScript file generation:
+DX_ARG_ABLE(ps, [generate doxygen PostScript documentation],
+            [DX_CHECK_DEPEND(doc, 1)],
+            [DX_CLEAR_DEPEND(doc, 1)],
+            [DX_REQUIRE_PROG([DX_LATEX], latex)
+             DX_REQUIRE_PROG([DX_MAKEINDEX], makeindex)
+             DX_REQUIRE_PROG([DX_DVIPS], dvips)
+             DX_REQUIRE_PROG([DX_EGREP], egrep)])
+
+# PDF file generation:
+DX_ARG_ABLE(pdf, [generate doxygen PDF documentation],
+            [DX_CHECK_DEPEND(doc, 1)],
+            [DX_CLEAR_DEPEND(doc, 1)],
+            [DX_REQUIRE_PROG([DX_PDFLATEX], pdflatex)
+             DX_REQUIRE_PROG([DX_MAKEINDEX], makeindex)
+             DX_REQUIRE_PROG([DX_EGREP], egrep)])
+
+# LaTeX generation for PS and/or PDF:
+if DX_TEST_FEATURE(ps) || DX_TEST_FEATURE(pdf); then
+    AM_CONDITIONAL(DX_COND_latex, :)
+    DX_ENV_APPEND(GENERATE_LATEX, YES)
+else
+    AM_CONDITIONAL(DX_COND_latex, false)
+    DX_ENV_APPEND(GENERATE_LATEX, NO)
+fi
+
+# Paper size for PS and/or PDF:
+AC_ARG_VAR(DOXYGEN_PAPER_SIZE,
+           [a4wide (default), a4, letter, legal or executive])
+case "$DOXYGEN_PAPER_SIZE" in
+#(
+"")
+    AC_SUBST(DOXYGEN_PAPER_SIZE, "")
+;; #(
+a4wide|a4|letter|legal|executive)
+    DX_ENV_APPEND(PAPER_SIZE, $DOXYGEN_PAPER_SIZE)
+;; #(
+*)
+    AC_MSG_ERROR([unknown DOXYGEN_PAPER_SIZE='$DOXYGEN_PAPER_SIZE'])
+;;
+esac
+
+#For debugging:
+#echo DX_FLAG_doc=$DX_FLAG_doc
+#echo DX_FLAG_dot=$DX_FLAG_dot
+#echo DX_FLAG_man=$DX_FLAG_man
+#echo DX_FLAG_html=$DX_FLAG_html
+#echo DX_FLAG_chm=$DX_FLAG_chm
+#echo DX_FLAG_chi=$DX_FLAG_chi
+#echo DX_FLAG_rtf=$DX_FLAG_rtf
+#echo DX_FLAG_xml=$DX_FLAG_xml
+#echo DX_FLAG_pdf=$DX_FLAG_pdf
+#echo DX_FLAG_ps=$DX_FLAG_ps
+#echo DX_ENV=$DX_ENV
+])

http://git-wip-us.apache.org/repos/asf/zookeeper/blob/e5b4b94d/zookeeper-recipes/queue/src/c/aminclude.am
----------------------------------------------------------------------
diff --git a/zookeeper-recipes/queue/src/c/aminclude.am b/zookeeper-recipes/queue/src/c/aminclude.am
new file mode 100644
index 0000000..420049e
--- /dev/null
+++ b/zookeeper-recipes/queue/src/c/aminclude.am
@@ -0,0 +1,186 @@
+# Copyright (C) 2004 Oren Ben-Kiki
+# This file is distributed under the same terms as the Automake macro files.
+
+# Generate automatic documentation using Doxygen. Goals and variables values
+# are controlled by the various DX_COND_??? conditionals set by autoconf.
+#
+# The provided goals are:
+# doxygen-doc: Generate all doxygen documentation.
+# doxygen-run: Run doxygen, which will generate some of the documentation
+#              (HTML, CHM, CHI, MAN, RTF, XML) but will not do the post
+#              processing required for the rest of it (PS, PDF, and some MAN).
+# doxygen-man: Rename some doxygen generated man pages.
+# doxygen-ps: Generate doxygen PostScript documentation.
+# doxygen-pdf: Generate doxygen PDF documentation.
+#
+# Note that by default these are not integrated into the automake goals. If
+# doxygen is used to generate man pages, you can achieve this integration by
+# setting man3_MANS to the list of man pages generated and then adding the
+# dependency:
+#
+#   $(man3_MANS): doxygen-doc
+#
+# This will cause make to run doxygen and generate all the documentation.
+#
+# The following variable is intended for use in Makefile.am:
+#
+# DX_CLEANFILES = everything to clean.
+#
+# This is usually added to MOSTLYCLEANFILES.
+
+## --------------------------------- ##
+## Format-independent Doxygen rules. ##
+## --------------------------------- ##
+
+if DX_COND_doc
+
+## ------------------------------- ##
+## Rules specific for HTML output. ##
+## ------------------------------- ##
+
+if DX_COND_html
+
+DX_CLEAN_HTML = @DX_DOCDIR@/html
+
+endif DX_COND_html
+
+## ------------------------------ ##
+## Rules specific for CHM output. ##
+## ------------------------------ ##
+
+if DX_COND_chm
+
+DX_CLEAN_CHM = @DX_DOCDIR@/chm
+
+if DX_COND_chi
+
+DX_CLEAN_CHI = @DX_DOCDIR@/@PACKAGE@.chi
+
+endif DX_COND_chi
+
+endif DX_COND_chm
+
+## ------------------------------ ##
+## Rules specific for MAN output. ##
+## ------------------------------ ##
+
+if DX_COND_man
+
+DX_CLEAN_MAN = @DX_DOCDIR@/man
+
+endif DX_COND_man
+
+## ------------------------------ ##
+## Rules specific for RTF output. ##
+## ------------------------------ ##
+
+if DX_COND_rtf
+
+DX_CLEAN_RTF = @DX_DOCDIR@/rtf
+
+endif DX_COND_rtf
+
+## ------------------------------ ##
+## Rules specific for XML output. ##
+## ------------------------------ ##
+
+if DX_COND_xml
+
+DX_CLEAN_XML = @DX_DOCDIR@/xml
+
+endif DX_COND_xml
+
+## ----------------------------- ##
+## Rules specific for PS output. ##
+## ----------------------------- ##
+
+if DX_COND_ps
+
+DX_CLEAN_PS = @DX_DOCDIR@/@PACKAGE@.ps
+
+DX_PS_GOAL = doxygen-ps
+
+doxygen-ps: @DX_DOCDIR@/@PACKAGE@.ps
+
+@DX_DOCDIR@/@PACKAGE@.ps: @DX_DOCDIR@/@PACKAGE@.tag
+	cd @DX_DOCDIR@/latex; \
+	rm -f *.aux *.toc *.idx *.ind *.ilg *.log *.out; \
+	$(DX_LATEX) refman.tex; \
+	$(MAKEINDEX_PATH) refman.idx; \
+	$(DX_LATEX) refman.tex; \
+	countdown=5; \
+	while $(DX_EGREP) 'Rerun (LaTeX|to get cross-references right)' \
+	                  refman.log > /dev/null 2>&1 \
+	   && test $$countdown -gt 0; do \
+	    $(DX_LATEX) refman.tex; \
+	    countdown=`expr $$countdown - 1`; \
+	done; \
+	$(DX_DVIPS) -o ../@PACKAGE@.ps refman.dvi
+
+endif DX_COND_ps
+
+## ------------------------------ ##
+## Rules specific for PDF output. ##
+## ------------------------------ ##
+
+if DX_COND_pdf
+
+DX_CLEAN_PDF = @DX_DOCDIR@/@PACKAGE@.pdf
+
+DX_PDF_GOAL = doxygen-pdf
+
+doxygen-pdf: @DX_DOCDIR@/@PACKAGE@.pdf
+
+@DX_DOCDIR@/@PACKAGE@.pdf: @DX_DOCDIR@/@PACKAGE@.tag
+	cd @DX_DOCDIR@/latex; \
+	rm -f *.aux *.toc *.idx *.ind *.ilg *.log *.out; \
+	$(DX_PDFLATEX) refman.tex; \
+	$(DX_MAKEINDEX) refman.idx; \
+	$(DX_PDFLATEX) refman.tex; \
+	countdown=5; \
+	while $(DX_EGREP) 'Rerun (LaTeX|to get cross-references right)' \
+	                  refman.log > /dev/null 2>&1 \
+	   && test $$countdown -gt 0; do \
+	    $(DX_PDFLATEX) refman.tex; \
+	    countdown=`expr $$countdown - 1`; \
+	done; \
+	mv refman.pdf ../@PACKAGE@.pdf
+
+endif DX_COND_pdf
+
+## ------------------------------------------------- ##
+## Rules specific for LaTeX (shared for PS and PDF). ##
+## ------------------------------------------------- ##
+
+if DX_COND_latex
+
+DX_CLEAN_LATEX = @DX_DOCDIR@/latex
+
+endif DX_COND_latex
+
+.PHONY: doxygen-run doxygen-doc $(DX_PS_GOAL) $(DX_PDF_GOAL)
+
+.INTERMEDIATE: doxygen-run $(DX_PS_GOAL) $(DX_PDF_GOAL)
+
+doxygen-run: @DX_DOCDIR@/@PACKAGE@.tag
+
+doxygen-doc: doxygen-run $(DX_PS_GOAL) $(DX_PDF_GOAL)
+
+@DX_DOCDIR@/@PACKAGE@.tag: $(DX_CONFIG) $(pkginclude_HEADERS)
+	rm -rf @DX_DOCDIR@
+	$(DX_ENV) $(DX_DOXYGEN) $(srcdir)/$(DX_CONFIG)
+
+DX_CLEANFILES = \
+    @DX_DOCDIR@/@PACKAGE@.tag \
+    -r \
+    $(DX_CLEAN_HTML) \
+    $(DX_CLEAN_CHM) \
+    $(DX_CLEAN_CHI) \
+    $(DX_CLEAN_MAN) \
+    $(DX_CLEAN_RTF) \
+    $(DX_CLEAN_XML) \
+    $(DX_CLEAN_PS) \
+    $(DX_CLEAN_PDF) \
+    $(DX_CLEAN_LATEX)
+
+endif DX_COND_doc