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do not allocate CountDownLatch if not needed

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This commit is contained in:
Alexey Kudravtsev
2016-04-08 17:19:24 +03:00
parent fb73401214
commit 829d4b593b
1 changed files with 11 additions and 14 deletions
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platform/platform-impl/src/com/intellij/openapi/application/impl/ApplicationImpl.java
+11 -14
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@@ -18,6 +18,7 @@ package com.intellij.openapi.application.impl;
import com.intellij.BundleBase;
import com.intellij.CommonBundle;
import com.intellij.concurrency.IdeaForkJoinWorkerThreadFactory;
import com.intellij.concurrency.JobScheduler;
import com.intellij.diagnostic.LogEventException;
import com.intellij.diagnostic.PerformanceWatcher;
import com.intellij.diagnostic.ThreadDumper;
@@ -84,7 +85,10 @@ import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.*;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
public class ApplicationImpl extends PlatformComponentManagerImpl implements ApplicationEx {
@@ -1117,20 +1121,13 @@ public class ApplicationImpl extends PlatformComponentManagerImpl implements App
if (!myLock.isWriteLocked()) {
assertNoPsiLock();
if (!myLock.tryWriteLock()) {
final CountDownLatch lockAcquired = new CountDownLatch(1);
if (ourDumpThreadsOnLongWriteActionWaiting > 0) {
executeOnPooledThread(() -> {
try {
while (!lockAcquired.await(ourDumpThreadsOnLongWriteActionWaiting, TimeUnit.MILLISECONDS)) {
PerformanceWatcher.getInstance().dumpThreads("waiting", true);
}
}
catch (InterruptedException ignored) {
}
});
}
Future<?> reportSlowWrite = ourDumpThreadsOnLongWriteActionWaiting > 0 ?
JobScheduler.getScheduler().scheduleWithFixedDelay(() -> PerformanceWatcher.getInstance().dumpThreads("waiting", true),
ourDumpThreadsOnLongWriteActionWaiting, ourDumpThreadsOnLongWriteActionWaiting, TimeUnit.MILLISECONDS) : null;
myLock.writeLock();
lockAcquired.countDown();
if (reportSlowWrite != null) {
reportSlowWrite.cancel(false);
}
}
}
}