java.util.concurrent.locks.AbstractQueuedSynchronizer Java Examples

The following examples show how to use java.util.concurrent.locks.AbstractQueuedSynchronizer. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: GridCacheLockImpl.java    From ignite with Apache License 2.0 6 votes vote down vote up 
/** {@inheritDoc} */
@Override public boolean hasWaiters(IgniteCondition condition) {
    try {
        initializeReentrantLock();

        AbstractQueuedSynchronizer.ConditionObject c = sync.conditionMap.get(condition.name());

        if (c == null)
            throw new IllegalArgumentException();

        return sync.hasWaiters(c);
    }
    catch (IgniteCheckedException e) {
        throw U.convertException(e);
    }
}
Example #2
Source File: GridCacheLockImpl.java    From ignite with Apache License 2.0 6 votes vote down vote up 
/** {@inheritDoc} */
@Override public int getWaitQueueLength(IgniteCondition condition) {
    try {
        initializeReentrantLock();

        AbstractQueuedSynchronizer.ConditionObject c = sync.conditionMap.get(condition.name());

        if (c == null)
            throw new IllegalArgumentException();

        return sync.getWaitQueueLength(c);
    }
    catch (IgniteCheckedException e) {
        throw U.convertException(e);
    }
}
Example #3
Source File: AbstractQueuedSynchronizerTest.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Spin-waits until sync.isQueued(t) becomes true.
 */
void waitForQueuedThread(AbstractQueuedSynchronizer sync, Thread t) {
    long startTime = System.nanoTime();
    while (!sync.isQueued(t)) {
        if (millisElapsedSince(startTime) > LONG_DELAY_MS)
            throw new AssertionFailedError("timed out");
        Thread.yield();
    }
    assertTrue(t.isAlive());
}
Example #4
Source File: AbstractQueuedSynchronizerTest.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Checks that sync has exactly the given queued threads.
 */
void assertHasQueuedThreads(AbstractQueuedSynchronizer sync,
                            Thread... expected) {
    Collection<Thread> actual = sync.getQueuedThreads();
    assertEquals(expected.length > 0, sync.hasQueuedThreads());
    assertEquals(expected.length, sync.getQueueLength());
    assertEquals(expected.length, actual.size());
    assertEquals(expected.length == 0, actual.isEmpty());
    assertEquals(new HashSet<Thread>(actual),
                 new HashSet<Thread>(Arrays.asList(expected)));
}
Example #5
Source File: AbstractQueuedSynchronizerTest.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Checks that sync has exactly the given (exclusive) queued threads.
 */
void assertHasExclusiveQueuedThreads(AbstractQueuedSynchronizer sync,
                                     Thread... expected) {
    assertHasQueuedThreads(sync, expected);
    assertEquals(new HashSet<Thread>(sync.getExclusiveQueuedThreads()),
                 new HashSet<Thread>(sync.getQueuedThreads()));
    assertEquals(0, sync.getSharedQueuedThreads().size());
    assertTrue(sync.getSharedQueuedThreads().isEmpty());
}
Example #6
Source File: AbstractQueuedSynchronizerTest.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Checks that sync has exactly the given (shared) queued threads.
 */
void assertHasSharedQueuedThreads(AbstractQueuedSynchronizer sync,
                                  Thread... expected) {
    assertHasQueuedThreads(sync, expected);
    assertEquals(new HashSet<Thread>(sync.getSharedQueuedThreads()),
                 new HashSet<Thread>(sync.getQueuedThreads()));
    assertEquals(0, sync.getExclusiveQueuedThreads().size());
    assertTrue(sync.getExclusiveQueuedThreads().isEmpty());
}
Example #7
Source File: AbstractQueuedSynchronizerTest.java    From j2objc with Apache License 2.0 5 votes vote down vote up 
/**
 * Spin-waits until sync.isQueued(t) becomes true.
 */
void waitForQueuedThread(AbstractQueuedSynchronizer sync, Thread t) {
    long startTime = System.nanoTime();
    while (!sync.isQueued(t)) {
        if (millisElapsedSince(startTime) > LONG_DELAY_MS)
            throw new AssertionFailedError("timed out");
        Thread.yield();
    }
    assertTrue(t.isAlive());
}
Example #8
Source File: AbstractQueuedSynchronizerTest.java    From j2objc with Apache License 2.0 5 votes vote down vote up 
/**
 * Checks that sync has exactly the given queued threads.
 */
void assertHasQueuedThreads(AbstractQueuedSynchronizer sync,
                            Thread... expected) {
    Collection<Thread> actual = sync.getQueuedThreads();
    assertEquals(expected.length > 0, sync.hasQueuedThreads());
    assertEquals(expected.length, sync.getQueueLength());
    assertEquals(expected.length, actual.size());
    assertEquals(expected.length == 0, actual.isEmpty());
    assertEquals(new HashSet<Thread>(actual),
                 new HashSet<Thread>(Arrays.asList(expected)));
}
Example #9
Source File: AbstractQueuedSynchronizerTest.java    From j2objc with Apache License 2.0 5 votes vote down vote up 
/**
 * Checks that sync has exactly the given (exclusive) queued threads.
 */
void assertHasExclusiveQueuedThreads(AbstractQueuedSynchronizer sync,
                                     Thread... expected) {
    assertHasQueuedThreads(sync, expected);
    assertEquals(new HashSet<Thread>(sync.getExclusiveQueuedThreads()),
                 new HashSet<Thread>(sync.getQueuedThreads()));
    assertEquals(0, sync.getSharedQueuedThreads().size());
    assertTrue(sync.getSharedQueuedThreads().isEmpty());
}
Example #10
Source File: AbstractQueuedSynchronizerTest.java    From j2objc with Apache License 2.0 5 votes vote down vote up 
/**
 * Checks that sync has exactly the given (shared) queued threads.
 */
void assertHasSharedQueuedThreads(AbstractQueuedSynchronizer sync,
                                  Thread... expected) {
    assertHasQueuedThreads(sync, expected);
    assertEquals(new HashSet<Thread>(sync.getSharedQueuedThreads()),
                 new HashSet<Thread>(sync.getQueuedThreads()));
    assertEquals(0, sync.getExclusiveQueuedThreads().size());
    assertTrue(sync.getExclusiveQueuedThreads().isEmpty());
}