public void runReadAction(@NotNull final Runnable action) {
/**
* if we are inside read action, do not try to acquire read lock again since it will deadlock if
* there is a pending writeAction see {@link
* com.intellij.util.concurrency.ReentrantWriterPreferenceReadWriteLock#allowReader()}
*/
if (isReadAccessAllowed()) {
action.run();
return;
}
LOG.assertTrue(
!Thread.holdsLock(PsiLock.LOCK),
"Thread must not hold PsiLock while performing readAction");
try {
myActionsLock.readLock().acquire();
} catch (InterruptedException e) {
throw new RuntimeInterruptedException(e);
}
try {
action.run();
} finally {
myActionsLock.readLock().release();
}
}
public boolean tryRunReadAction(@NotNull Runnable action) {
/**
* if we are inside read action, do not try to acquire read lock again since it will deadlock if
* there is a pending writeAction see {@link
* com.intellij.util.concurrency.ReentrantWriterPreferenceReadWriteLock#allowReader()}
*/
boolean mustAcquire = !isReadAccessAllowed();
if (mustAcquire) {
LOG.assertTrue(
myTestModeFlag || !Thread.holdsLock(PsiLock.LOCK),
"Thread must not hold PsiLock while performing readAction");
try {
if (!myActionsLock.readLock().attempt(0)) return false;
} catch (InterruptedException e) {
throw new RuntimeInterruptedException(e);
}
}
try {
action.run();
} finally {
if (mustAcquire) {
myActionsLock.readLock().release();
}
}
return true;
}
public void runWriteAction(@NotNull final Runnable action) {
final AccessToken token = acquireWriteActionLock(action.getClass());
try {
action.run();
} finally {
token.finish();
}
}
public <T> T getCurrentWriteAction(@Nullable Class<T> actionClass) {
assertCanRunWriteAction();
for (int i = myWriteActionsStack.size() - 1; i >= 0; i--) {
Runnable action = myWriteActionsStack.get(i);
if (actionClass == null || ReflectionCache.isAssignable(actionClass, action.getClass()))
return (T) action;
}
return null;
}
public void runReadAction(@NotNull final Runnable action) {
final AccessToken token = acquireReadActionLockImpl(false);
try {
action.run();
} finally {
token.finish();
}
}
public void exit(final boolean force) {
if (!force && getDefaultModalityState() != ModalityState.NON_MODAL) {
return;
}
Runnable runnable =
new Runnable() {
public void run() {
if (!force) {
if (!showConfirmation()) {
saveAll();
myExitCode = 0;
return;
}
}
getMessageBus().syncPublisher(AppLifecycleListener.TOPIC).appClosing();
FileDocumentManager.getInstance().saveAllDocuments();
saveSettings();
if (!canExit()) {
myExitCode = 0;
return;
}
final boolean success = disposeSelf();
if (!success || isUnitTestMode()) {
myExitCode = 0;
return;
}
System.exit(myExitCode);
}
};
if (!isDispatchThread()) {
invokeLater(runnable, ModalityState.NON_MODAL);
} else {
runnable.run();
}
}
public void runWriteAction(@NotNull final Runnable action) {
assertCanRunWriteAction();
ActivityTracker.getInstance().inc();
fireBeforeWriteActionStart(action);
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();
} catch (InterruptedException e) {
throw new RuntimeInterruptedException(e);
}
stopped.set(true);
try {
myWriteActionsStack.push(action);
fireWriteActionStarted(action);
action.run();
} finally {
try {
fireWriteActionFinished(action);
myWriteActionsStack.pop();
} finally {
myActionsLock.writeLock().release();
}
}
}
public void runEdtSafeAction(@NotNull Runnable runnable) {
Integer value = ourEdtSafe.get();
if (value == null) {
value = Integer.valueOf(0);
}
ourEdtSafe.set(value + 1);
try {
runnable.run();
} finally {
int newValue = ourEdtSafe.get() - 1;
ourEdtSafe.set(newValue >= 1 ? newValue : null);
}
}
public void invokeAndWait(@NotNull Runnable runnable, @NotNull ModalityState modalityState) {
if (isDispatchThread()) {
LOG.error("invokeAndWait must not be called from event queue thread");
runnable.run();
return;
}
if (isExceptionalThreadWithReadAccess()) { // OK if we're in exceptional thread.
LaterInvocator.invokeAndWait(runnable, modalityState);
return;
}
if (myActionsLock.isReadLockAcquired()) {
LOG.error("Calling invokeAndWait from read-action leads to possible deadlock.");
}
LaterInvocator.invokeAndWait(runnable, modalityState);
}