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A little bit of optimization

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This commit is contained in:
Trustin Lee 2008-09-26 00:43:14 +00:00
parent e1f4053d41
commit 824e0034c4
1 changed files with 18 additions and 13 deletions
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31
src/main/java/org/jboss/netty/handler/execution/OrderedMemoryAwareThreadPoolExecutor.java
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@ -22,10 +22,7 @@
*/
package org.jboss.netty.handler.execution;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.Queue;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.Executor;
@ -172,19 +169,21 @@ public class OrderedMemoryAwareThreadPoolExecutor extends
}
private class ChildExecutor implements Executor, Runnable {
private final Set<ChildExecutor> runningChildren = new HashSet<ChildExecutor>();
private final Queue<Runnable> tasks = new LinkedList<Runnable>();
private final LinkedList<Runnable> tasks = new LinkedList<Runnable>();
ChildExecutor() {
super();
}
public void execute(Runnable command) {
boolean needsExecution;
synchronized (tasks) {
needsExecution = tasks.isEmpty();
tasks.add(command);
if (tasks.size() == 1 && runningChildren.add(this)) {
doUnorderedExecute(this);
}
}
if (needsExecution) {
doUnorderedExecute(this);
}
}
@ -192,13 +191,19 @@ public class OrderedMemoryAwareThreadPoolExecutor extends
for (;;) {
final Runnable task;
synchronized (tasks) {
task = tasks.poll();
if (task == null) {
runningChildren.remove(this);
return;
task = tasks.getFirst();
}
try {
task.run();
} finally {
synchronized (tasks) {
tasks.removeFirst();
if (tasks.isEmpty()) {
break;
}
}
}
task.run();
}
}
}