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Eat what you kill strategy avoids double dispatch

This commit is contained in:
Greg Wilkins 2014-07-31 08:58:19 +10:00
parent 489830a0b2
commit e415de44c6
1 changed files with 6 additions and 2 deletions
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8
jetty-util/src/main/java/org/eclipse/jetty/util/thread/ExecutionStrategy.java
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@ -59,7 +59,6 @@ public abstract class ExecutionStrategy implements Runnable
_executor=executor;
}
/* ------------------------------------------------------------ */
/** Simple iterative strategy.
* Iterate over production until complete and execute each task.
@ -113,6 +112,7 @@ public abstract class ExecutionStrategy implements Runnable
{
private final AtomicInteger _threads = new AtomicInteger(0);
private final AtomicReference<Boolean> _producing = new AtomicReference<Boolean>(Boolean.FALSE);
private volatile boolean _dispatched;
public EatWhatYouKill(Producer producer, Executor executor)
{
@ -121,6 +121,7 @@ public abstract class ExecutionStrategy implements Runnable
public void run()
{
_dispatched=false;
// count the dispatched threads
_threads.incrementAndGet();
try
@ -146,9 +147,12 @@ public abstract class ExecutionStrategy implements Runnable
}
// then we may need another thread to keep producing
if (!complete)
if (!complete && !_dispatched)
{
// Dispatch a thread to continue producing
_dispatched=true;
_executor.execute(this);
}
// If there is a task,
if (task!=null)