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optimisation: do not start background thread if there is no contention

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This commit is contained in:
Alexey Kudravtsev
2012-01-30 10:21:16 +04:00
parent 9742be4568
commit 9f3ca33757
1 changed files with 20 additions and 19 deletions
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platform/platform-impl/src/com/intellij/openapi/application/impl/ApplicationImpl.java
+20 -19
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@@ -1118,28 +1118,29 @@ public class ApplicationImpl extends ComponentManagerImpl implements Application
fireBeforeWriteActionStart(_clazz);
final AtomicBoolean stopped = new AtomicBoolean(false);
if (ourDumpThreadsOnLongWriteActionWaiting > 0) {
executeOnPooledThread(new Runnable() {
@Override
public void run() {
while (!stopped.get()) {
try {
Thread.sleep(ourDumpThreadsOnLongWriteActionWaiting);
if (!stopped.get()) {
PerformanceWatcher.getInstance().dumpThreads(true);
}
}
catch (InterruptedException ignored) {
}
}
}
});
}
LOG.assertTrue(myActionsLock.isWriteLockAcquired(Thread.currentThread())
|| !Thread.holdsLock(PsiLock.LOCK), "Thread must not hold PsiLock while performing writeAction");
try {
myActionsLock.writeLock().acquire();
if (!myActionsLock.writeLock().attempt(0)) {
if (ourDumpThreadsOnLongWriteActionWaiting > 0) {
executeOnPooledThread(new Runnable() {
@Override
public void run() {
while (!stopped.get()) {
try {
Thread.sleep(ourDumpThreadsOnLongWriteActionWaiting);
if (!stopped.get()) {
PerformanceWatcher.getInstance().dumpThreads(true);
}
}
catch (InterruptedException ignored) {
}
}
}
});
}
myActionsLock.writeLock().acquire();
}
acquired();
}
catch (InterruptedException e) {