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Posted to commits@harmony.apache.org by te...@apache.org on 2007/10/23 15:54:40 UTC
svn commit: r587508 [4/4] - in
/harmony/enhanced/classlib/trunk/modules/nio/src/main/java:
common/java/nio/ common/java/nio/channels/ common/java/nio/channels/spi/
common/org/apache/harmony/nio/ common/org/apache/harmony/nio/internal/
unix/org/apache/h...
Modified: harmony/enhanced/classlib/trunk/modules/nio/src/main/java/unix/org/apache/harmony/nio/internal/EpollSelectorImpl.java
URL: http://svn.apache.org/viewvc/harmony/enhanced/classlib/trunk/modules/nio/src/main/java/unix/org/apache/harmony/nio/internal/EpollSelectorImpl.java?rev=587508&r1=587507&r2=587508&view=diff
==============================================================================
--- harmony/enhanced/classlib/trunk/modules/nio/src/main/java/unix/org/apache/harmony/nio/internal/EpollSelectorImpl.java (original)
+++ harmony/enhanced/classlib/trunk/modules/nio/src/main/java/unix/org/apache/harmony/nio/internal/EpollSelectorImpl.java Tue Oct 23 06:54:37 2007
@@ -65,9 +65,9 @@
final Object keysLock = new Object();
boolean keySetChanged = true;
-
+
private SelectionKey[] keys = new SelectionKey[1];
-
+
private final Set<SelectionKey> keysSet = new HashSet<SelectionKey>();
private Set<SelectionKey> unmodifiableKeys = Collections
@@ -82,33 +82,34 @@
private Pipe.SinkChannel sink;
private Pipe.SourceChannel source;
-
+
private FileDescriptor sourcefd;
-
+
private int[] keyFDs;
private int[] readyFDs;
private int[] readyOps;
-
- private int keysCount = 0;
+
+ private int keysCount = 0;
private long epollFD;
-
+
private int countReady;
-
+
public Class fileDescriptorClass;
-
+
static native int resolveFD(Class cfd, FileDescriptor ofd);
-
+
static native long prepare();
static native long addFileDescriptor(long epollFD, int mode, int fd);
static native long delFileDescriptor(long epollFD, long fd);
- static native int epoll(long epollFD, int count, int[] FDs, int[] ops, long timeout);
-
+ static native int epoll(long epollFD, int count, int[] FDs, int[] ops,
+ long timeout);
+
private InternalKeyMap<EpollSelectionKeyImpl> quickMap = new InternalKeyMap<EpollSelectionKeyImpl>();
public EpollSelectorImpl(SelectorProvider selectorProvider) {
@@ -117,25 +118,25 @@
Pipe mockSelector = selectorProvider.openPipe();
sink = mockSelector.sink();
source = mockSelector.source();
- sourcefd = ((FileDescriptorHandler)source).getFD();
+ sourcefd = ((FileDescriptorHandler) source).getFD();
source.configureBlocking(false);
-
+
fileDescriptorClass = sourcefd.getClass();
-
+
keyFDs = new int[1];
readyFDs = new int[1];
readyOps = new int[1];
-
+
// register sink channel
keyFDs[0] = resolveFD(fileDescriptorClass, sourcefd);
keys[0] = source.keyFor(this);
epollFD = prepare();
-
+
keysCount = 1;
- quickMap.put(keyFDs[0], (EpollSelectionKeyImpl)keys[0]);
+ quickMap.put(keyFDs[0], (EpollSelectionKeyImpl) keys[0]);
addFileDescriptor(epollFD, 1, keyFDs[0]);
-
+
} catch (IOException e) {
// do nothing
}
@@ -149,9 +150,9 @@
synchronized (keysSet) {
synchronized (selectedKeys) {
doCancel();
- for(int c = 0; c < keysCount; c++) {
+ for (int c = 0; c < keysCount; c++) {
if (keys[c] != null) {
- deregister((AbstractSelectionKey) keys[c]);
+ deregister((AbstractSelectionKey) keys[c]);
}
}
wakeup();
@@ -162,92 +163,104 @@
private void ensureCapacity(int c) {
// TODO: rewrite array handling as some internal class
- if(c >= keys.length) {
- SelectionKey[] t = new SelectionKey[(keys.length + 1) << 1];
- System.arraycopy(keys, 0, t, 0, keys.length);
- keys = t;
- }
+ if (c >= keys.length) {
+ SelectionKey[] t = new SelectionKey[(keys.length + 1) << 1];
+ System.arraycopy(keys, 0, t, 0, keys.length);
+ keys = t;
+ }
- if(c >= readyFDs.length) {
+ if (c >= readyFDs.length) {
int[] t = new int[(readyFDs.length + 1) << 1];
System.arraycopy(readyFDs, 0, t, 0, readyFDs.length);
readyFDs = t;
}
-
- if (c >= keyFDs.length) {
- int[] t = new int[(keyFDs.length + 1) << 1];
- System.arraycopy(keyFDs, 0, t, 0, keyFDs.length);
- keyFDs = t;
- }
+
+ if (c >= keyFDs.length) {
+ int[] t = new int[(keyFDs.length + 1) << 1];
+ System.arraycopy(keyFDs, 0, t, 0, keyFDs.length);
+ keyFDs = t;
+ }
if (c >= readyOps.length) {
int[] t = new int[(readyOps.length + 1) << 1];
System.arraycopy(readyOps, 0, t, 0, readyOps.length);
readyOps = t;
}
- }
-
+ }
+
private void limitCapacity() {
- // TODO: implement array squeezing
+ // TODO: implement array squeezing
}
/**
* Adds the specified key to storage and updates the indexes accordingly
- * @param sk key to add
+ *
+ * @param sk
+ * key to add
* @return index in the storage
*/
private int addKey(SelectionKey sk) {
-
- // make sure that enough space is available
+
+ // make sure that enough space is available
ensureCapacity(keysCount);
-
+
// get channel params
- int ops = sk.interestOps();
- int fd = resolveFD(fileDescriptorClass, ((FileDescriptorHandler) sk.channel()).getFD());
-
+ int ops = sk.interestOps();
+ int fd = resolveFD(fileDescriptorClass, ((FileDescriptorHandler) sk
+ .channel()).getFD());
+
int eops = 0;
- if (((SelectionKey.OP_READ | SelectionKey.OP_ACCEPT) & ops) != 0) { eops = eops + READABLE; };
- if (((SelectionKey.OP_WRITE | SelectionKey.OP_CONNECT) & ops) != 0) { eops = eops + WRITABLE; };
-
+ if (((SelectionKey.OP_READ | SelectionKey.OP_ACCEPT) & ops) != 0) {
+ eops = eops + READABLE;
+ }
+ ;
+ if (((SelectionKey.OP_WRITE | SelectionKey.OP_CONNECT) & ops) != 0) {
+ eops = eops + WRITABLE;
+ }
+ ;
+
keys[keysCount] = sk;
keyFDs[keysCount] = fd;
-
- quickMap.put(fd, (EpollSelectionKeyImpl)sk);
+
+ quickMap.put(fd, (EpollSelectionKeyImpl) sk);
addFileDescriptor(epollFD, eops, fd);
-
- return keysCount++;
+
+ return keysCount++;
}
-
+
/**
- * Deletes the key from the internal storage and updates the indexes accordingly
- * @param sk key to delete
+ * Deletes the key from the internal storage and updates the indexes
+ * accordingly
+ *
+ * @param sk
+ * key to delete
*/
private void delKey(SelectionKey sk) {
-
+
// get the key index in the internal storage
- int index = ((EpollSelectionKeyImpl)sk).getIndex();
+ int index = ((EpollSelectionKeyImpl) sk).getIndex();
- // deregister FD in native
+ // deregister FD in native
delFileDescriptor(epollFD, keyFDs[index]);
-
- if ( quickMap.remove(keyFDs[index]) == null ) {
- throw new RuntimeException();
- }
- // key is null now
- keys[index] = null;
-
+
+ if (quickMap.remove(keyFDs[index]) == null) {
+ throw new RuntimeException();
+ }
+ // key is null now
+ keys[index] = null;
+
// key compaction to ensure lack of holes
// we can simply exchange latest and current keys
- if (keys[keysCount-1] != null) {
- keys[index] = keys[keysCount-1];
- keys[keysCount-1] = null;
-
- keyFDs[index] = keyFDs[keysCount-1];
- keyFDs[keysCount-1] = -1;
-
- // update key index
- ((EpollSelectionKeyImpl)keys[index]).setIndex(index);
- }
+ if (keys[keysCount - 1] != null) {
+ keys[index] = keys[keysCount - 1];
+ keys[keysCount - 1] = null;
+
+ keyFDs[index] = keyFDs[keysCount - 1];
+ keyFDs[keysCount - 1] = -1;
+
+ // update key index
+ ((EpollSelectionKeyImpl) keys[index]).setIndex(index);
+ }
keysCount--;
}
@@ -256,13 +269,13 @@
* @param sk
*/
void modKey(SelectionKey sk) {
- // TODO: update indexes rather than recreate the key
- synchronized(keysSet) {
+ // TODO: update indexes rather than recreate the key
+ synchronized (keysSet) {
delKey(sk);
- addKey(sk);
+ addKey(sk);
}
}
-
+
/*
* @see java.nio.channels.spi.AbstractSelector#register(java.nio.channels.spi.AbstractSelectableChannel,
* int, java.lang.Object)
@@ -275,14 +288,16 @@
synchronized (this) {
synchronized (keysSet) {
-// System.out.println("Registering channel");
- // create the key
- SelectionKey sk = new EpollSelectionKeyImpl(channel, operations, attachment, this);
-
- int index = addKey(sk);
- ((EpollSelectionKeyImpl)sk).setIndex(index);
-
-// System.out.println(" channel registered with index = " + index);
+ // System.out.println("Registering channel");
+ // create the key
+ SelectionKey sk = new EpollSelectionKeyImpl(channel,
+ operations, attachment, this);
+
+ int index = addKey(sk);
+ ((EpollSelectionKeyImpl) sk).setIndex(index);
+
+ // System.out.println(" channel registered with index = " +
+ // index);
return sk;
}
}
@@ -293,17 +308,17 @@
*/
public synchronized Set<SelectionKey> keys() {
closeCheck();
-
+
keysSet.clear();
-
- if (keys.length != keysCount) {
- SelectionKey[] chompedKeys = new SelectionKey[keysCount];
- System.arraycopy(keys, 0, chompedKeys, 0, keysCount);
- keysSet.addAll(Arrays.asList(chompedKeys));
- } else {
- keysSet.addAll(Arrays.asList(keys));
- }
-
+
+ if (keys.length != keysCount) {
+ SelectionKey[] chompedKeys = new SelectionKey[keysCount];
+ System.arraycopy(keys, 0, chompedKeys, 0, keysCount);
+ keysSet.addAll(Arrays.asList(chompedKeys));
+ } else {
+ keysSet.addAll(Arrays.asList(keys));
+ }
+
keysSet.remove(source.keyFor(this));
return unmodifiableKeys;
}
@@ -349,15 +364,19 @@
if (isBlock) {
begin();
}
-// System.out.println("calling native epoll(): keysCount = " + keysCount + ", readyFDs.length = " + readyFDs.length + ", readyOps.length = " + readyOps.length);
- countReady = epoll(epollFD, keysCount, readyFDs, readyOps, timeout);
-// System.out.println(" returns " + countReady);
+ // System.out.println("calling native epoll(): keysCount
+ // = " + keysCount + ", readyFDs.length = " +
+ // readyFDs.length + ", readyOps.length = " +
+ // readyOps.length);
+ countReady = epoll(epollFD, keysCount, readyFDs,
+ readyOps, timeout);
+ // System.out.println(" returns " + countReady);
} finally {
if (isBlock) {
end();
}
}
- return processSelectResult();
+ return processSelectResult();
}
}
}
@@ -393,50 +412,52 @@
}
}
int selected = 0;
-
+
EpollSelectionKeyImpl key = null;
for (int i = 0; i < countReady; i++) {
-// System.out.println("processSelectResults(): mapping readyFDs[" + i + "]");
- // Lookup the key, map the index in readyFDs to real key
- key = (EpollSelectionKeyImpl)quickMap.get(readyFDs[i]);
-
- if (null == key) {
- continue;
- }
-// System.out.println(" ready key = " + key.getIndex());
-
- int ops = key.interestOps();
- int selectedOp = 0;
-
- if ( (readyOps[i] & READABLE) != 0 ) {
- selectedOp = (SelectionKey.OP_READ | SelectionKey.OP_ACCEPT) & ops;
- }
-
- if ( (readyOps[i] & WRITABLE) != 0 ) {
- if (isConnected(key)) {
- selectedOp = selectedOp | (SelectionKey.OP_WRITE & ops);
- } else {
- selectedOp = selectedOp | (SelectionKey.OP_CONNECT & ops);
- }
+ // System.out.println("processSelectResults(): mapping readyFDs[" +
+ // i + "]");
+ // Lookup the key, map the index in readyFDs to real key
+ key = (EpollSelectionKeyImpl) quickMap.get(readyFDs[i]);
+
+ if (null == key) {
+ continue;
+ }
+ // System.out.println(" ready key = " + key.getIndex());
+
+ int ops = key.interestOps();
+ int selectedOp = 0;
+
+ if ((readyOps[i] & READABLE) != 0) {
+ selectedOp = (SelectionKey.OP_READ | SelectionKey.OP_ACCEPT)
+ & ops;
+ }
+
+ if ((readyOps[i] & WRITABLE) != 0) {
+ if (isConnected(key)) {
+ selectedOp = selectedOp | (SelectionKey.OP_WRITE & ops);
+ } else {
+ selectedOp = selectedOp | (SelectionKey.OP_CONNECT & ops);
}
+ }
- if (0 != selectedOp) {
- if (selectedKeys.contains(key)) {
- if (key.readyOps() != selectedOp) {
- key.setReadyOps(key.readyOps() | selectedOp);
- selected++;
- }
- } else {
- key.setReadyOps(selectedOp);
- selectedKeys.add(key);
- selected++;
- }
- }
+ if (0 != selectedOp) {
+ if (selectedKeys.contains(key)) {
+ if (key.readyOps() != selectedOp) {
+ key.setReadyOps(key.readyOps() | selectedOp);
+ selected++;
+ }
+ } else {
+ key.setReadyOps(selectedOp);
+ selectedKeys.add(key);
+ selected++;
+ }
+ }
- }
+ }
-// System.out.println("processSelectResult(): selected = " + selected);
+ // System.out.println("processSelectResult(): selected = " + selected);
return selected;
}
@@ -452,9 +473,9 @@
Set<SelectionKey> cancelledKeys = cancelledKeys();
synchronized (cancelledKeys) {
if (cancelledKeys.size() > 0) {
- for (SelectionKey currentkey : cancelledKeys) {
- delKey(currentkey);
- deregister((AbstractSelectionKey) currentkey);
+ for (SelectionKey currentkey : cancelledKeys) {
+ delKey(currentkey);
+ deregister((AbstractSelectionKey) currentkey);
selectedKeys.remove(currentkey);
}
}
@@ -477,135 +498,144 @@
private static class InternalKeyMap<E> {
- Entry<E>[] storage;
+ Entry<E>[] storage;
+
+ int size;
+
+ Entry deleted = new Entry(-1, null);
+
+ final int threshRatio = 4;
+
+ public InternalKeyMap() {
+ this(1);
+ }
+
+ public InternalKeyMap(int initialSize) {
+ storage = new Entry[initialSize];
+ size = 0;
+ }
+
+ private E putEntryNoCheck(Entry<E>[] storage, int key, Entry<E> entry) {
+
+ for (int tryCount = 0; tryCount < storage.length; tryCount++) {
- int size;
-
- Entry deleted = new Entry(-1, null);
-
- final int threshRatio = 4;
-
- public InternalKeyMap() {
- this(1);
- }
-
- public InternalKeyMap(int initialSize) {
- storage = new Entry[initialSize];
- size = 0;
- }
-
- private E putEntryNoCheck(Entry<E>[] storage, int key, Entry<E> entry) {
-
- for(int tryCount = 0; tryCount < storage.length ; tryCount++) {
-
- int hash = hash(key, tryCount);
- int index = hash % storage.length;
-
-// System.out.println("put: hash: " + hash + ", index: " + index + ", key: " + key + ", size: " + size + ", tryCount: " + tryCount + ", storage.length=" + storage.length);
-
- if ( storage[index] == null ) {
- if ( entry != deleted ) {
- storage[index] = entry;
- }
+ int hash = hash(key, tryCount);
+ int index = hash % storage.length;
+
+ // System.out.println("put: hash: " + hash + ", index: " + index
+ // + ", key: " + key + ", size: " + size + ", tryCount: " +
+ // tryCount + ", storage.length=" + storage.length);
+
+ if (storage[index] == null) {
+ if (entry != deleted) {
+ storage[index] = entry;
+ }
return null;
- } else if ( storage[index].key == key || (storage[index] == deleted && entry != deleted) ) {
- E t = storage[index].value;
- storage[index] = entry;
- return t;
- }
- }
-
- throw new ArrayIndexOutOfBoundsException();
- }
-
- private E putEntry(int key, Entry<E> entry) {
- if ( size >= storage.length || (storage.length / (storage.length - size)) >= threshRatio) {
- rehash();
- }
-
- E result = putEntryNoCheck(storage, key, entry);
- if (result == null) {
- size++;
- }
-
- return result;
- }
-
- public void put(int key, E value) {
- Entry<E> t = new Entry<E>(key, value);
- putEntry(key, t);
- }
-
- public E remove(int key) {
- E result = putEntryNoCheck(storage, key, deleted);
-
- if (result != null) {
- size--;
- }
-
- return result;
- }
-
- public E get(int key) {
- if (storage == null) {
-// System.out.println(" FAIL, storage=null");
- return null;
- }
+ } else if (storage[index].key == key
+ || (storage[index] == deleted && entry != deleted)) {
+ E t = storage[index].value;
+ storage[index] = entry;
+ return t;
+ }
+ }
+
+ throw new ArrayIndexOutOfBoundsException();
+ }
+
+ private E putEntry(int key, Entry<E> entry) {
+ if (size >= storage.length
+ || (storage.length / (storage.length - size)) >= threshRatio) {
+ rehash();
+ }
+
+ E result = putEntryNoCheck(storage, key, entry);
+ if (result == null) {
+ size++;
+ }
+
+ return result;
+ }
- for(int tryCount = 0; tryCount < storage.length ; tryCount++) {
+ public void put(int key, E value) {
+ Entry<E> t = new Entry<E>(key, value);
+ putEntry(key, t);
+ }
+
+ public E remove(int key) {
+ E result = putEntryNoCheck(storage, key, deleted);
+
+ if (result != null) {
+ size--;
+ }
+
+ return result;
+ }
+
+ public E get(int key) {
+ if (storage == null) {
+ // System.out.println(" FAIL, storage=null");
+ return null;
+ }
+
+ for (int tryCount = 0; tryCount < storage.length; tryCount++) {
int hash = hash(key, tryCount);
int index = hash % storage.length;
-// System.out.println("get: hash: " + hash + ", index: " + index + ", key: " + key + ", size: " + size + ", tryCount: " + tryCount + ", storage.length=" + storage.length);
+ // System.out.println("get: hash: " + hash + ", index: " + index
+ // + ", key: " + key + ", size: " + size + ", tryCount: " +
+ // tryCount + ", storage.length=" + storage.length);
- if ( storage[index] == null ) {
-// System.out.println("Lookup FAIL, reached end");
+ if (storage[index] == null) {
+ // System.out.println("Lookup FAIL, reached end");
return null;
}
- if ( storage[index].key == key ) {
-// System.out.println("Lookup OK!");
+ if (storage[index].key == key) {
+ // System.out.println("Lookup OK!");
return storage[index].value;
}
- }
-// System.out.println(" FAIL, tryCount > storage.length");
+ }
+ // System.out.println(" FAIL, tryCount > storage.length");
return null;
- }
-
- private void rehash() {
+ }
+
+ private void rehash() {
Entry<E>[] newStorage = new Entry[storage.length << 1];
int newSize = 0;
- for(int c = 0; c < storage.length; c++) {
- if(storage[c] == null) continue;
- if(storage[c] == deleted) continue;
+ for (int c = 0; c < storage.length; c++) {
+ if (storage[c] == null)
+ continue;
+ if (storage[c] == deleted)
+ continue;
putEntryNoCheck(newStorage, storage[c].key, storage[c]);
newSize++;
- }
+ }
storage = newStorage;
size = newSize;
- }
-
- private int hash(int key, int tryCount) {
- int t1 = key*31 + 1;
- int t2 = 2*key + 1;
- return (t1+(t2*tryCount)) & 0x7FFFFFFF;
- }
-
- private static class Entry<E> {
-
+ }
+
+ private int hash(int key, int tryCount) {
+ int t1 = key * 31 + 1;
+ int t2 = 2 * key + 1;
+ return (t1 + (t2 * tryCount)) & 0x7FFFFFFF;
+ }
+
+ private static class Entry<E> {
+
final int key;
+
final E value;
-
+
public Entry(int iKey, E iValue) {
key = iKey;
value = iValue;
- }
-
- }
-
- }
-
+ }
+
+ }
+
+ }
+
private static class UnaddableSet<E> implements Set<E> {
private Set<E> set;
@@ -674,7 +704,5 @@
return set.toArray(a);
}
}
-
}
-
Modified: harmony/enhanced/classlib/trunk/modules/nio/src/main/java/unix/org/apache/harmony/nio/internal/EpollSelectorProviderImpl.java
URL: http://svn.apache.org/viewvc/harmony/enhanced/classlib/trunk/modules/nio/src/main/java/unix/org/apache/harmony/nio/internal/EpollSelectorProviderImpl.java?rev=587508&r1=587507&r2=587508&view=diff
==============================================================================
--- harmony/enhanced/classlib/trunk/modules/nio/src/main/java/unix/org/apache/harmony/nio/internal/EpollSelectorProviderImpl.java (original)
+++ harmony/enhanced/classlib/trunk/modules/nio/src/main/java/unix/org/apache/harmony/nio/internal/EpollSelectorProviderImpl.java Tue Oct 23 06:54:37 2007
@@ -25,59 +25,57 @@
import java.nio.channels.spi.AbstractSelector;
import java.nio.channels.spi.SelectorProvider;
-
/*
* Internal implementation of SelectorProvider.
- *
*/
public class EpollSelectorProviderImpl extends SelectorProvider {
- /*
- * Constructor for this class.
- */
- public EpollSelectorProviderImpl() {
- super();
- System.out.println("Now using EpollSelectorProvider");
- }
-
- /*
- *
- * @see java.nio.channels.spi.SelectorProvider#openDatagramChannel()
- */
- public DatagramChannel openDatagramChannel() throws IOException {
- return new DatagramChannelImpl(this);
- }
-
- /*
- *
- * @see java.nio.channels.spi.SelectorProvider#openPipe()
- */
- public Pipe openPipe() throws IOException {
- return new PipeImpl();
- }
-
- /*
- *
- * @see java.nio.channels.spi.SelectorProvider#openSelector()
- */
- public AbstractSelector openSelector() throws IOException {
+ /*
+ * Constructor for this class.
+ */
+ public EpollSelectorProviderImpl() {
+ super();
+ System.out.println("Now using EpollSelectorProvider");
+ }
+
+ /*
+ *
+ * @see java.nio.channels.spi.SelectorProvider#openDatagramChannel()
+ */
+ public DatagramChannel openDatagramChannel() throws IOException {
+ return new DatagramChannelImpl(this);
+ }
+
+ /*
+ *
+ * @see java.nio.channels.spi.SelectorProvider#openPipe()
+ */
+ public Pipe openPipe() throws IOException {
+ return new PipeImpl();
+ }
+
+ /*
+ *
+ * @see java.nio.channels.spi.SelectorProvider#openSelector()
+ */
+ public AbstractSelector openSelector() throws IOException {
return new EpollSelectorImpl(this);
}
- /*
- *
- * @see java.nio.channels.spi.SelectorProvider#openServerSocketChannel()
- */
- public ServerSocketChannel openServerSocketChannel() throws IOException {
- return new ServerSocketChannelImpl(this);
- }
-
- /*
- *
- * @see java.nio.channels.spi.SelectorProvider#openSocketChannel()
- */
- public SocketChannel openSocketChannel() throws IOException {
- return new SocketChannelImpl(this);
- }
+ /*
+ *
+ * @see java.nio.channels.spi.SelectorProvider#openServerSocketChannel()
+ */
+ public ServerSocketChannel openServerSocketChannel() throws IOException {
+ return new ServerSocketChannelImpl(this);
+ }
+
+ /*
+ *
+ * @see java.nio.channels.spi.SelectorProvider#openSocketChannel()
+ */
+ public SocketChannel openSocketChannel() throws IOException {
+ return new SocketChannelImpl(this);
+ }
}