@Test
public void testDeleteFile() throws Exception {
log.debug(" **** testDeleteFile **** ");
File f = new File(mytempdir + File.separator + "just_deleted");
long interval = 1000;
try {
final Semaphore s = new Semaphore(0);
fw = new FolderWatcher(new File(mytempdir), interval);
fw.initialRun();
fw.addListener(
new IModificationListener() {
int state = 0;
public void fileModified(File f, ModifyActions action) {
log.debug("testDeleteFile: State: " + state);
switch (state) {
case 0:
Assert.assertEquals("just_deleted", f.getName());
Assert.assertEquals(ModifyActions.CREATED, action);
break;
case 1:
Assert.assertEquals("just_deleted", f.getName());
Assert.assertEquals(ModifyActions.DELETED, action);
break;
default:
Assert.fail("Unknown state");
}
state++;
log.debug("Releasing, we are now in state " + state);
s.release();
}
});
fw.run();
f.createNewFile();
log.debug("We expect CREATED");
Assert.assertTrue(s.tryAcquire(interval * 3, TimeUnit.MILLISECONDS));
f.delete();
System.gc();
f.delete();
Assert.assertFalse(f.exists());
log.debug("We expect DELETED");
Assert.assertTrue(s.tryAcquire(interval * 3, TimeUnit.MILLISECONDS));
fw.cancel();
} catch (Exception e) {
fw.cancel();
f.delete();
throw e;
}
}
public void writeConfig() throws ExecutionException, TimeoutException, InterruptedException {
long startTime = System.currentTimeMillis();
FutureCallback<None> callback = new FutureCallback<None>();
_store.start(callback);
callback.get(_timeout, _timeoutUnit);
final Semaphore outstandingPutSemaphore = new Semaphore(_maxOutstandingWrites);
for (final String key : _source.keySet()) {
Map<String, Object> map = merge(_source.get(key), _defaultMap);
T properties = _builder.fromMap(map);
Callback<None> putCallback =
new Callback<None>() {
@Override
public void onSuccess(None none) {
outstandingPutSemaphore.release();
}
@Override
public void onError(Throwable e) {
_log.error("Put failed for {}", key, e);
outstandingPutSemaphore.release();
}
};
if (!outstandingPutSemaphore.tryAcquire(_timeout, _timeoutUnit)) {
_log.error("Put timed out for {}", key);
throw new TimeoutException();
}
_store.put(key, properties, putCallback);
}
// Wait until all puts are finished.
if (!outstandingPutSemaphore.tryAcquire(_maxOutstandingWrites, _timeout, _timeoutUnit)) {
_log.error(
"Put timed out with {} outstanding writes",
_maxOutstandingWrites - outstandingPutSemaphore.availablePermits());
throw new TimeoutException();
}
FutureCallback<None> shutdownCallback = new FutureCallback<None>();
_store.shutdown(shutdownCallback);
shutdownCallback.get(_timeout, _timeoutUnit);
long elapsedTime = System.currentTimeMillis() - startTime;
_log.info(
"A total of {}.{}s elapsed to write configs to store.",
elapsedTime / 1000,
elapsedTime % 1000);
}
@Test
public void testCancelled() throws InterruptedException, ExecutionException {
Task<List<?>> t =
Tasks.sequential(sayTask("1"), sayTask("2a", Duration.THIRTY_SECONDS, "2b"), sayTask("3"));
ec.submit(t);
synchronized (messages) {
while (messages.size() <= 1) messages.wait();
}
Assert.assertEquals(messages, Arrays.asList("1", "2a"));
Time.sleep(Duration.millis(50));
t.cancel(true);
Assert.assertTrue(t.isDone());
// 2 should get cancelled, and invoke the cancellation semaphore
// 3 should get cancelled and not run at all
Assert.assertEquals(messages, Arrays.asList("1", "2a"));
// Need to ensure that 2 has been started; race where we might cancel it before its run method
// is even begun. Hence doing "2a; pause; 2b" where nothing is interruptable before pause.
Assert.assertTrue(cancellations.tryAcquire(10, TimeUnit.SECONDS));
Iterator<Task<?>> ci = ((HasTaskChildren) t).getChildren().iterator();
Assert.assertEquals(ci.next().get(), "1");
Task<?> task2 = ci.next();
Assert.assertTrue(task2.isBegun());
Assert.assertTrue(task2.isDone());
Assert.assertTrue(task2.isCancelled());
Task<?> task3 = ci.next();
Assert.assertFalse(task3.isBegun());
Assert.assertTrue(task2.isDone());
Assert.assertTrue(task2.isCancelled());
// but we do _not_ get a mutex from task3 as it does not run (is not interrupted)
Assert.assertEquals(cancellations.availablePermits(), 0);
}
@Override
@SuppressFBWarnings("DM_EXIT")
public void onDestroy() {
Log.i(TAG, "Destroying ChildProcessService pid=%d", Process.myPid());
super.onDestroy();
if (mActivitySemaphore.tryAcquire()) {
// TODO(crbug.com/457406): This is a bit hacky, but there is no known better solution
// as this service will get reused (at least if not sandboxed).
// In fact, we might really want to always exit() from onDestroy(), not just from
// the early return here.
System.exit(0);
return;
}
synchronized (mMainThread) {
try {
while (!mLibraryInitialized) {
// Avoid a potential race in calling through to native code before the library
// has loaded.
mMainThread.wait();
}
} catch (InterruptedException e) {
// Ignore
}
}
// Try to shutdown the MainThread gracefully, but it might not
// have chance to exit normally.
nativeShutdownMainThread();
}
private int callDocumentHasImagesSync(final AwContents awContents)
throws Throwable, InterruptedException {
// Set up a container to hold the result object and a semaphore to
// make the test wait for the result.
final AtomicInteger val = new AtomicInteger();
final Semaphore s = new Semaphore(0);
final Message msg =
Message.obtain(
new Handler(Looper.getMainLooper()) {
@Override
public void handleMessage(Message msg) {
val.set(msg.arg1);
s.release();
}
});
runTestOnUiThread(
new Runnable() {
@Override
public void run() {
awContents.documentHasImages(msg);
}
});
assertTrue(s.tryAcquire(WAIT_TIMEOUT_MS, TimeUnit.MILLISECONDS));
int result = val.get();
return result;
}
private Connection getConnection2(long timeoutMs) throws SQLException {
// This routine is unsynchronized, because semaphore.tryAcquire() may block.
synchronized (this) {
if (isDisposed) {
throw new IllegalStateException("Connection pool has been disposed.");
}
}
try {
if (!semaphore.tryAcquire(timeoutMs, TimeUnit.MILLISECONDS)) {
throw new TimeoutException();
}
} catch (InterruptedException e) {
throw new RuntimeException("Interrupted while waiting for a database connection.", e);
}
boolean ok = false;
try {
Connection conn = getConnection3();
ok = true;
return conn;
} finally {
if (!ok) {
semaphore.release();
}
}
}
public void close() throws Exception {
checkOpened();
writeLock.lock();
try {
while (!pendingWrites.await(60000)) {
HornetQJournalLogger.LOGGER.couldNotGetLock(fileName);
}
while (!maxIOSemaphore.tryAcquire(maxIO, 60, TimeUnit.SECONDS)) {
HornetQJournalLogger.LOGGER.couldNotGetLock(fileName);
}
maxIOSemaphore = null;
if (poller != null) {
stopPoller();
}
if (handler != null) {
AsynchronousFileImpl.closeInternal(handler);
AsynchronousFileImpl.addMax(-maxIO);
}
opened = false;
handler = null;
} finally {
writeLock.unlock();
}
}
public boolean waitTillNotified(long millisecondsToWait) {
try {
return notificationSemaphore.tryAcquire(millisecondsToWait, TimeUnit.MILLISECONDS);
} catch (InterruptedException e) {
return false;
}
}
private static String getResultFromQueue(String callId)
throws JMSException, InterruptedException {
Destination resultDest = session.createQueue(callId);
MessageConsumer consumer = session.createConsumer(resultDest);
final Semaphore messageSem = new Semaphore(0);
final AtomicReference<String> resultReference = new AtomicReference<String>();
consumer.setMessageListener(
new MessageListener() {
@Override
public void onMessage(Message message) {
try {
String text = ((TextMessage) message).getText();
resultReference.set(text);
} catch (JMSException e) {
throw new RuntimeException(e);
} finally {
messageSem.release();
}
}
});
LOGGER.info("waiting for response");
if (!messageSem.tryAcquire(10, TimeUnit.SECONDS)) {
throw new RuntimeException("no response");
}
LOGGER.info("response received");
return resultReference.get();
}
public void await(Semaphore semaphore) {
try {
assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
} catch (Throwable t) {
threadUnexpectedException(t);
}
}
public boolean putMessage(String message, long timeout) {
BufferListener listener = listenerRef.get();
if (listener != null) {
try {
if (queue.size() == 0) {
return listener.onMessage(message);
} else {
ArrayList<String> messages = new ArrayList<String>(queue.size() + 1);
queue.drainTo(messages);
messages.add(message);
return listener.onMessages(messages);
}
} catch (Throwable t) {
return false;
}
} else {
try {
if (!inputSemaphore.tryAcquire(message.length(), timeout, TimeUnit.MILLISECONDS)) {
return false;
}
queue.offer(message);
return true;
} catch (InterruptedException e) {
return false;
}
}
}
private void scheduleReconnect() {
/*
* Ensure you are the only one mucking with connections If you find someone
* else is doing so, then you don't get a turn We trust this other person to
* do the needful
*/
if (lock.tryAcquire()) {
long currentTime = System.currentTimeMillis();
// Check how long it has been since we reconnected
try {
if ((currentTime - connectRequestTime) / 1000 > backoffSeconds) {
connectRequestTime = currentTime;
timer.newTimeout(
new TimerTask() {
public void run(Timeout timeout) throws Exception {
channelSetter.connect();
}
},
backoffSeconds,
TimeUnit.SECONDS);
}
} finally {
lock.release();
}
}
}
/**
* Tries to acquire from the cluster semaphore, and only if that succeeds does it try the pool
* semaphore.
*
* @see java.util.concurrent.Semaphore#tryAcquire(int)
*/
@Override
public boolean tryAcquire(int permits) {
boolean clusterPermitted = clusterSemaphore.tryAcquire(permits);
boolean poolPermitted = false;
if (clusterPermitted) {
poolPermitted = poolSemaphore.tryAcquire(permits);
}
if (poolPermitted) {
return true;
} else if (clusterPermitted) {
clusterSemaphore.release(permits);
}
return false;
}
@Test
public void testAddListenerCalled() throws Exception {
final Semaphore flag = new Semaphore(1);
SimpleTestListener test =
new SimpleTestListener(
new Runnable() {
public void run() {
flag.release();
}
});
profileCollector.addListener(test, true);
flag.acquire();
// Run a task, to be sure our listener gets called at least once
txnScheduler.runTask(
new TestAbstractKernelRunnable() {
// empty task
public void run() {}
},
taskOwner);
// Calling reports is asynchronous
flag.tryAcquire(100, TimeUnit.MILLISECONDS);
assertTrue(test.reportCalls > 0);
}
@Override
public void stop() {
if (bulkRequest.numberOfActions() > 0) {
executeBulk();
}
try {
if (semaphore.tryAcquire(concurrentRequests, 10, TimeUnit.MINUTES)) {
semaphore.release(concurrentRequests);
}
} catch (InterruptedException e) {
throw new IllegalStateException(
"Elasticsearch bulk requests still being executed after 10 minutes", e);
}
progress.stop();
if (!disableRefresh) {
client.prepareRefresh(indexName).get();
}
if (large) {
// optimize lucene segments and revert index settings
// Optimization must be done before re-applying replicas:
// http://www.elasticsearch.org/blog/performance-considerations-elasticsearch-indexing/
client.prepareForceMerge(indexName).get();
updateSettings(largeInitialSettings);
}
bulkRequest = null;
}
public void run() {
try {
moved = s.tryAcquire(2, 4, TimeUnit.SECONDS);
} catch (InterruptedException e) {
JPADiagramEditorPlugin.logError("Thread interrupted", e); // $NON-NLS-1$
}
}
private void waitForOutstandingRequests(
TimeValue timeOut, Semaphore requestsOutstanding, int maxRequests, String name) {
long start = System.currentTimeMillis();
do {
long msRemaining = timeOut.getMillis() - (System.currentTimeMillis() - start);
logger.info(
"[{}] going to try and aquire [{}] in [{}]ms [{}] available to aquire right now",
name,
maxRequests,
msRemaining,
requestsOutstanding.availablePermits());
try {
requestsOutstanding.tryAcquire(maxRequests, msRemaining, TimeUnit.MILLISECONDS);
return;
} catch (InterruptedException ie) {
// Just keep swimming
}
} while ((System.currentTimeMillis() - start) < timeOut.getMillis());
throw new ElasticsearchTimeoutException(
"Requests were still outstanding after the timeout ["
+ timeOut
+ "] for type ["
+ name
+ "]");
}
@Override
protected void setUp() throws Exception {
super.setUp();
final Semaphore semaphore = new Semaphore(0);
ThreadUtils.runOnUiThreadBlocking(
new Runnable() {
@Override
public void run() {
Profile profile = Profile.getLastUsedProfile();
mOfflinePageBridge = new OfflinePageBridge(profile);
if (mOfflinePageBridge.isOfflinePageModelLoaded()) {
semaphore.release();
} else {
mOfflinePageBridge.addObserver(
new OfflinePageModelObserver() {
@Override
public void offlinePageModelLoaded() {
semaphore.release();
mOfflinePageBridge.removeObserver(this);
}
});
}
}
});
assertTrue(semaphore.tryAcquire(TIMEOUT_MS, TimeUnit.MILLISECONDS));
}
private void savePage(final int expectedResult, final String expectedUrl)
throws InterruptedException {
final Semaphore semaphore = new Semaphore(0);
ThreadUtils.runOnUiThreadBlocking(
new Runnable() {
@Override
public void run() {
assertNotNull("Tab is null", getActivity().getActivityTab());
assertEquals(
"URL does not match requested.",
TEST_PAGE,
getActivity().getActivityTab().getUrl());
assertNotNull("WebContents is null", getActivity().getActivityTab().getWebContents());
mOfflinePageBridge.savePage(
getActivity().getActivityTab().getWebContents(),
BOOKMARK_ID,
getActivity().getWindowAndroid(),
new SavePageCallback() {
@Override
public void onSavePageDone(int savePageResult, String url) {
assertEquals("Requested and returned URLs differ.", expectedUrl, url);
assertEquals("Save result incorrect.", expectedResult, savePageResult);
semaphore.release();
}
});
}
});
assertTrue(semaphore.tryAcquire(TIMEOUT_MS, TimeUnit.MILLISECONDS));
}
/**
* @return if <0, then this pipe should be stopped. If ==0, it should not wait. If >0, if it
* should wait
*/
int execute() {
if (!lock.tryAcquire()) return 1; // currently being accessed
Thread myThread = Thread.currentThread();
int threadIndex = -1;
for (int i = 0; i < threads.length; i++) {
if (threads[i] == null) {
threads[i] = myThread;
threadIndex = i;
break;
}
if (myThread != threads[i]) continue;
threadIndex = i;
break;
}
Signal signal;
if (threadIndex < 0) {
signal = dummySignal;
} else {
SignalImpl s = signals[threadIndex];
s.threadIndex = threadIndex;
s.signaled = false;
signal = s;
}
boolean hasData;
try {
hasData = poll(signal, null);
} finally {
signal.signal();
if (threadIndex < 0) lock.release();
}
return 0;
}
private FutureChannelCreator acquire(
final FutureChannelCreator futureChannelCreator, final FutureResponse futureResponse) {
if (oneConnection.tryAcquire()) {
futureResponse.addListener(
new BaseFutureAdapter<FutureResponse>() {
@Override
public void operationComplete(FutureResponse future) throws Exception {
oneConnection.release();
synchronized (map) {
Iterator<Map.Entry<FutureChannelCreator, FutureResponse>> iterator =
map.entrySet().iterator();
if (iterator.hasNext()) {
Map.Entry<FutureChannelCreator, FutureResponse> entry = iterator.next();
iterator.remove();
acquire(entry.getKey(), entry.getValue());
}
}
}
});
futureChannelCreator.reserved(cc);
return futureChannelCreator;
} else {
synchronized (map) {
map.put(futureChannelCreator, futureResponse);
}
}
return futureChannelCreator;
}
@Override
protected void beforeExecute(Thread t, Runnable r) {
try {
semaphore.tryAcquire();
} finally {
super.beforeExecute(t, r);
}
}
public void acquireRead() {
assert (!readLocks.contains(Thread.currentThread()));
if (!lock.tryAcquire()) {
WorkerThread.beginIO();
lock.acquireUninterruptibly();
WorkerThread.endIO();
}
readLocks.add(Thread.currentThread());
}
/** Test of setPeriods method, of class PhoneSignalDetector. */
@Test
public void testSetPeriods() throws Exception {
det.start();
gen.start();
semaphore.tryAcquire(10, TimeUnit.SECONDS);
assertTrue("Event not detected", evtDetected);
}
/**
* Wait on the given semaphore
*
* @param semaphore the semaphore
* @param n number of permits to acquire
* @return result of {@link Semaphore#tryAcquire(int, long, TimeUnit)}
*/
public boolean acquireSemaphore(Semaphore semaphore, int n) {
Timing m = forWaiting();
try {
return semaphore.tryAcquire(n, m.value, m.unit);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
return false;
}
@Test
public void testNioSingleUseWithInbound() throws Exception {
final int port = SocketTestUtils.findAvailableServerSocket();
final CountDownLatch latch = new CountDownLatch(1);
final Semaphore semaphore = new Semaphore(0);
final AtomicBoolean done = new AtomicBoolean();
Executors.newSingleThreadExecutor()
.execute(
new Runnable() {
public void run() {
try {
ServerSocket server = ServerSocketFactory.getDefault().createServerSocket(port);
latch.countDown();
int i = 0;
while (true) {
Socket socket = server.accept();
semaphore.release();
byte[] b = new byte[6];
readFully(socket.getInputStream(), b);
b = ("Reply" + (++i) + "\r\n").getBytes();
socket.getOutputStream().write(b);
}
} catch (Exception e) {
if (!done.get()) {
e.printStackTrace();
}
}
}
});
AbstractConnectionFactory ccf = new TcpNioClientConnectionFactory("localhost", port);
ByteArrayCrLfSerializer serializer = new ByteArrayCrLfSerializer();
ccf.setSerializer(serializer);
ccf.setDeserializer(serializer);
ccf.setSoTimeout(10000);
ccf.start();
ccf.setSingleUse(true);
TcpSendingMessageHandler handler = new TcpSendingMessageHandler();
handler.setConnectionFactory(ccf);
TcpReceivingChannelAdapter adapter = new TcpReceivingChannelAdapter();
adapter.setConnectionFactory(ccf);
QueueChannel channel = new QueueChannel();
adapter.setOutputChannel(channel);
assertTrue(latch.await(10, TimeUnit.SECONDS));
handler.handleMessage(MessageBuilder.withPayload("Test").build());
handler.handleMessage(MessageBuilder.withPayload("Test").build());
assertTrue(semaphore.tryAcquire(2, 10000, TimeUnit.MILLISECONDS));
Set<String> replies = new HashSet<String>();
for (int i = 0; i < 2; i++) {
Message<?> mOut = channel.receive(10000);
assertNotNull(mOut);
replies.add(new String((byte[]) mOut.getPayload()));
}
assertTrue(replies.remove("Reply1"));
assertTrue(replies.remove("Reply2"));
done.set(true);
}
void offer(Action action) {
if (DEBUG) {
assertOnIcThread();
Log.d(
LOGTAG, "offer: Action(" + getConstantName(Action.class, "TYPE_", action.mType) + ")");
}
/* Events don't need update because they generate text/selection
notifications which will do the updating for us */
if (action.mType != Action.TYPE_EVENT
&& action.mType != Action.TYPE_ACKNOWLEDGE_FOCUS
&& action.mType != Action.TYPE_SET_HANDLER) {
action.mShouldUpdate = mUpdateGecko;
}
if (mActions.isEmpty()) {
mActionsActive.acquireUninterruptibly();
mActions.offer(action);
} else
synchronized (this) {
// tryAcquire here in case Gecko thread has just released it
mActionsActive.tryAcquire();
mActions.offer(action);
}
switch (action.mType) {
case Action.TYPE_EVENT:
case Action.TYPE_SET_SELECTION:
case Action.TYPE_SET_SPAN:
case Action.TYPE_REMOVE_SPAN:
case Action.TYPE_SET_HANDLER:
onImeSynchronize();
break;
case Action.TYPE_REPLACE_TEXT:
// try key events first
sendCharKeyEvents(action);
// fall-through
case Action.TYPE_COMPOSE_TEXT:
onImeReplaceText(
action.mStart,
action.mEnd,
action.mSequence.toString(),
action.mType == Action.TYPE_COMPOSE_TEXT);
break;
case Action.TYPE_ACKNOWLEDGE_FOCUS:
onImeAcknowledgeFocus();
break;
default:
throw new IllegalStateException("Action not processed");
}
++mIcUpdateSeqno;
}
private void process(ByteBuffer buffer, int len) {
if (len > 0) {
byte[] b = new byte[len];
System.arraycopy(buffer.array(), 0, b, 0, len);
reads.add(b);
if (notListened.tryAcquire()) {
listen();
}
}
}
private void waitForRemoteColor(String msgName, Thread t) throws InterruptedException {
if (!remoteEventLatch.tryAcquire(timeout, timeoutTimeUnit)) {
t.interrupt();
throw new RuntimeException(
msgName
+ "Change color not detected in REMOTE steam after "
+ timeout
+ " "
+ timeoutTimeUnit);
}
}
public void waitForEvents(Integer releaseId, Integer sprintId, Integer teamId)
throws InterruptedException {
Assert.assertTrue(semaphore.tryAcquire(3, 2000000, TimeUnit.MILLISECONDS));
sprintService.removeListener(this);
if (fail.length() > 0) {
Assert.fail(fail.toString());
}
compare(release, releaseId);
compare(sprint, sprintId);
compare(team, teamId);
}
