Examples with LinkedTransferQueue java.util.concurrent.LinkedTransferQueue used on opensource projects

Example 31 with LinkedTransferQueue

use of java.util.concurrent.LinkedTransferQueue in project j2objc by google.

the class LinkedTransferQueueTest method testTryTransfer4.

/**
 * If there is a consumer waiting in take, tryTransfer returns
 * true while successfully transfering object.
 */
public void testTryTransfer4() throws InterruptedException {
    final Object hotPotato = new Object();
    final LinkedTransferQueue q = new LinkedTransferQueue();
    Thread t = newStartedThread(new CheckedRunnable() {

        public void realRun() {
            while (!q.hasWaitingConsumer()) Thread.yield();
            assertTrue(q.hasWaitingConsumer());
            checkEmpty(q);
            assertTrue(q.tryTransfer(hotPotato));
        }
    });
    assertSame(q.take(), hotPotato);
    checkEmpty(q);
    awaitTermination(t);
}

Example 32 with LinkedTransferQueue

use of java.util.concurrent.LinkedTransferQueue in project j2objc by google.

the class LinkedTransferQueueTest method testWeaklyConsistentIteration.

/**
 * Modifications do not cause iterators to fail
 */
public void testWeaklyConsistentIteration() {
    final LinkedTransferQueue q = new LinkedTransferQueue();
    q.add(one);
    q.add(two);
    q.add(three);
    for (Iterator it = q.iterator(); it.hasNext(); ) {
        q.remove();
        it.next();
    }
    assertEquals(0, q.size());
}

Example 33 with LinkedTransferQueue

use of java.util.concurrent.LinkedTransferQueue in project j2objc by google.

the class LinkedTransferQueueTest method testTryTransfer1.

/**
 * tryTransfer(null) throws NullPointerException
 */
public void testTryTransfer1() {
    final LinkedTransferQueue q = new LinkedTransferQueue();
    try {
        q.tryTransfer(null);
        shouldThrow();
    } catch (NullPointerException success) {
    }
}

Example 34 with LinkedTransferQueue

use of java.util.concurrent.LinkedTransferQueue in project j2objc by google.

the class LinkedTransferQueueTest method testRetainAll.

/**
 * retainAll(c) retains only those elements of c and reports true
 * if changed
 */
public void testRetainAll() {
    LinkedTransferQueue q = populatedQueue(SIZE);
    LinkedTransferQueue p = populatedQueue(SIZE);
    for (int i = 0; i < SIZE; ++i) {
        boolean changed = q.retainAll(p);
        if (i == 0) {
            assertFalse(changed);
        } else {
            assertTrue(changed);
        }
        assertTrue(q.containsAll(p));
        assertEquals(SIZE - i, q.size());
        p.remove();
    }
}

Example 35 with LinkedTransferQueue

use of java.util.concurrent.LinkedTransferQueue in project j2objc by google.

the class LinkedTransferQueueTest method testDrainToWithActivePut.

/**
 * drainTo(c) empties full queue, unblocking a waiting put.
 */
public void testDrainToWithActivePut() throws InterruptedException {
    final LinkedTransferQueue q = populatedQueue(SIZE);
    Thread t = newStartedThread(new CheckedRunnable() {

        public void realRun() {
            q.put(SIZE + 1);
        }
    });
    ArrayList l = new ArrayList();
    q.drainTo(l);
    assertTrue(l.size() >= SIZE);
    for (int i = 0; i < SIZE; ++i) assertEquals(i, l.get(i));
    awaitTermination(t);
    assertTrue(q.size() + l.size() >= SIZE);
}