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Posted to dev@tomcat.apache.org by ma...@apache.org on 2013/09/04 14:33:42 UTC

svn commit: r1519994 - in /tomcat/trunk/java/org/apache/coyote/ajp: AbstractAjpProcessor.java AjpAprProcessor.java AjpNioProcessor.java AjpProcessor.java

Author: markt
Date: Wed Sep  4 12:33:42 2013
New Revision: 1519994

URL: http://svn.apache.org/r1519994
Log:
Add some plumbing for non-blocking writes to the AJP connectors. There
is no functional change. All writes remain blocking.

Modified:
    tomcat/trunk/java/org/apache/coyote/ajp/AbstractAjpProcessor.java
    tomcat/trunk/java/org/apache/coyote/ajp/AjpAprProcessor.java
    tomcat/trunk/java/org/apache/coyote/ajp/AjpNioProcessor.java
    tomcat/trunk/java/org/apache/coyote/ajp/AjpProcessor.java

Modified: tomcat/trunk/java/org/apache/coyote/ajp/AbstractAjpProcessor.java
URL: http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/coyote/ajp/AbstractAjpProcessor.java?rev=1519994&r1=1519993&r2=1519994&view=diff
==============================================================================
--- tomcat/trunk/java/org/apache/coyote/ajp/AbstractAjpProcessor.java (original)
+++ tomcat/trunk/java/org/apache/coyote/ajp/AbstractAjpProcessor.java Wed Sep  4 12:33:42 2013
@@ -672,7 +672,7 @@ public abstract class AbstractAjpProcess
                     }
                     cping = true;
                     try {
-                        output(pongMessageArray, 0, pongMessageArray.length);
+                        output(pongMessageArray, 0, pongMessageArray.length, true);
                     } catch (IOException e) {
                         error = true;
                     }
@@ -855,8 +855,8 @@ public abstract class AbstractAjpProcess
     protected abstract void resetTimeouts();
 
     // Methods called by prepareResponse()
-    protected abstract void output(byte[] src, int offset, int length)
-            throws IOException;
+    protected abstract int output(byte[] src, int offset, int length,
+            boolean block) throws IOException;
 
     // Methods called by process()
     protected abstract void setupSocket(SocketWrapper<S> socketWrapper)
@@ -1002,7 +1002,7 @@ public abstract class AbstractAjpProcess
 
         // Request more data immediately
         if (!first && !waitingForBodyMessage) {
-            output(getBodyMessageArray, 0, getBodyMessageArray.length);
+            output(getBodyMessageArray, 0, getBodyMessageArray.length, true);
             waitingForBodyMessage = true;
         }
 
@@ -1397,8 +1397,7 @@ public abstract class AbstractAjpProcess
 
         // Write to buffer
         responseMessage.end();
-        output(responseMessage.getBuffer(), 0,
-                responseMessage.getLen());
+        output(responseMessage.getBuffer(), 0, responseMessage.getLen(), true);
     }
 
 
@@ -1408,7 +1407,7 @@ public abstract class AbstractAjpProcess
     protected void flush(boolean explicit) throws IOException {
         if (explicit && !finished) {
             // Send the flush message
-            output(flushMessageArray, 0, flushMessageArray.length);
+            output(flushMessageArray, 0, flushMessageArray.length, true);
         }
     }
 
@@ -1440,9 +1439,9 @@ public abstract class AbstractAjpProcess
 
         // Add the end message
         if (error) {
-            output(endAndCloseMessageArray, 0, endAndCloseMessageArray.length);
+            output(endAndCloseMessageArray, 0, endAndCloseMessageArray.length, true);
         } else {
-            output(endMessageArray, 0, endMessageArray.length);
+            output(endMessageArray, 0, endMessageArray.length, true);
         }
     }
 
@@ -1523,7 +1522,7 @@ public abstract class AbstractAjpProcess
                     responseMessage.appendByte(Constants.JK_AJP13_SEND_BODY_CHUNK);
                     responseMessage.appendBytes(chunk.getBytes(), chunk.getOffset() + off, thisTime);
                     responseMessage.end();
-                    output(responseMessage.getBuffer(), 0, responseMessage.getLen());
+                    output(responseMessage.getBuffer(), 0, responseMessage.getLen(), true);
 
                     off += thisTime;
                 }

Modified: tomcat/trunk/java/org/apache/coyote/ajp/AjpAprProcessor.java
URL: http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/coyote/ajp/AjpAprProcessor.java?rev=1519994&r1=1519993&r2=1519994&view=diff
==============================================================================
--- tomcat/trunk/java/org/apache/coyote/ajp/AjpAprProcessor.java (original)
+++ tomcat/trunk/java/org/apache/coyote/ajp/AjpAprProcessor.java Wed Sep  4 12:33:42 2013
@@ -24,6 +24,7 @@ import java.util.concurrent.locks.Reentr
 import org.apache.juli.logging.Log;
 import org.apache.juli.logging.LogFactory;
 import org.apache.tomcat.jni.Socket;
+import org.apache.tomcat.jni.Status;
 import org.apache.tomcat.util.net.AprEndpoint;
 import org.apache.tomcat.util.net.SocketWrapper;
 
@@ -102,22 +103,32 @@ public class AjpAprProcessor extends Abs
 
 
     @Override
-    protected void output(byte[] src, int offset, int length)
+    protected int output(byte[] src, int offset, int length, boolean block)
             throws IOException {
+
+        if (length == 0) {
+            return 0;
+        }
+
         outputBuffer.put(src, offset, length);
 
-        long socketRef = socketWrapper.getSocket().longValue();
+        int result = -1;
 
-        if (outputBuffer.position() > 0) {
-            if ((socketRef != 0) &&
-                    writeSocket(0, outputBuffer.position(), true) < 0) {
+        if (socketWrapper.getSocket().longValue() != 0) {
+            result = writeSocket(0, outputBuffer.position(), block);
+            if (Status.APR_STATUS_IS_EAGAIN(-result)) {
+                result = 0;
+            }
+            if (result < 0) {
                 // There are no re-tries so clear the buffer to prevent a
                 // possible overflow if the buffer is used again. BZ53119.
                 outputBuffer.clear();
                 throw new IOException(sm.getString("ajpprocessor.failedsend"));
             }
-            outputBuffer.clear();
         }
+        outputBuffer.clear();
+
+        return result;
     }
 
 

Modified: tomcat/trunk/java/org/apache/coyote/ajp/AjpNioProcessor.java
URL: http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/coyote/ajp/AjpNioProcessor.java?rev=1519994&r1=1519993&r2=1519994&view=diff
==============================================================================
--- tomcat/trunk/java/org/apache/coyote/ajp/AjpNioProcessor.java (original)
+++ tomcat/trunk/java/org/apache/coyote/ajp/AjpNioProcessor.java Wed Sep  4 12:33:42 2013
@@ -110,7 +110,7 @@ public class AjpNioProcessor extends Abs
 
 
     @Override
-    protected void output(byte[] src, int offset, int length)
+    protected int output(byte[] src, int offset, int length, boolean block)
             throws IOException {
 
         NioEndpoint.KeyAttachment att =
@@ -132,8 +132,8 @@ public class AjpNioProcessor extends Abs
             //ignore
         }
         try {
-            pool.write(writeBuffer, socketWrapper.getSocket(), selector,
-                    writeTimeout, true);
+            return pool.write(writeBuffer, socketWrapper.getSocket(), selector,
+                    writeTimeout, block);
         } finally {
             writeBuffer.clear();
             if (selector != null) {

Modified: tomcat/trunk/java/org/apache/coyote/ajp/AjpProcessor.java
URL: http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/coyote/ajp/AjpProcessor.java?rev=1519994&r1=1519993&r2=1519994&view=diff
==============================================================================
--- tomcat/trunk/java/org/apache/coyote/ajp/AjpProcessor.java (original)
+++ tomcat/trunk/java/org/apache/coyote/ajp/AjpProcessor.java Wed Sep  4 12:33:42 2013
@@ -97,9 +97,10 @@ public class AjpProcessor extends Abstra
 
 
     @Override
-    protected void output(byte[] src, int offset, int length)
+    protected int output(byte[] src, int offset, int length, boolean block)
             throws IOException {
         output.write(src, offset, length);
+        return length;
     }
 
 



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