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

Example 61 with LinkedTransferQueue

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

the class LinkedTransferQueueTest method testTransfer4.

/**
 * transfer waits until a poll occurs, at which point the polling
 * thread returns the element
 */
public void testTransfer4() throws InterruptedException {
    final LinkedTransferQueue q = new LinkedTransferQueue();
    Thread t = newStartedThread(new CheckedRunnable() {

        public void realRun() throws InterruptedException {
            q.transfer(four);
            assertFalse(q.contains(four));
            assertSame(three, q.poll());
        }
    });
    while (q.isEmpty()) Thread.yield();
    assertFalse(q.isEmpty());
    assertEquals(1, q.size());
    assertTrue(q.offer(three));
    assertSame(four, q.poll());
    awaitTermination(t);
}

Example 62 with LinkedTransferQueue

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

the class LinkedTransferQueueTest method testAddAll3.

/**
 * addAll of a collection with any null elements throws
 * NullPointerException after possibly adding some elements
 */
public void testAddAll3() {
    LinkedTransferQueue q = new LinkedTransferQueue();
    Integer[] ints = new Integer[SIZE];
    for (int i = 0; i < SIZE - 1; ++i) ints[i] = i;
    try {
        q.addAll(Arrays.asList(ints));
        shouldThrow();
    } catch (NullPointerException success) {
    }
}

Example 63 with LinkedTransferQueue

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

the class LinkedTransferQueueTest method testDrainTo.

/**
 * drainTo(c) empties queue into another collection c
 */
public void testDrainTo() {
    LinkedTransferQueue q = populatedQueue(SIZE);
    ArrayList l = new ArrayList();
    q.drainTo(l);
    assertEquals(0, q.size());
    assertEquals(SIZE, l.size());
    for (int i = 0; i < SIZE; ++i) {
        assertEquals(i, l.get(i));
    }
    q.add(zero);
    q.add(one);
    assertFalse(q.isEmpty());
    assertTrue(q.contains(zero));
    assertTrue(q.contains(one));
    l.clear();
    q.drainTo(l);
    assertEquals(0, q.size());
    assertEquals(2, l.size());
    for (int i = 0; i < 2; ++i) {
        assertEquals(i, l.get(i));
    }
}

Example 64 with LinkedTransferQueue

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

the class LinkedTransferQueueTest method testAddAll5.

/**
 * Queue contains all elements, in traversal order, of successful addAll
 */
public void testAddAll5() {
    Integer[] empty = new Integer[0];
    Integer[] ints = new Integer[SIZE];
    for (int i = 0; i < SIZE; ++i) {
        ints[i] = i;
    }
    LinkedTransferQueue q = new LinkedTransferQueue();
    assertFalse(q.addAll(Arrays.asList(empty)));
    assertTrue(q.addAll(Arrays.asList(ints)));
    for (int i = 0; i < SIZE; ++i) {
        assertEquals(ints[i], q.poll());
    }
}

Example 65 with LinkedTransferQueue

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

the class LinkedTransferQueueTest method testTryTransfer3.

/**
 * If there is a consumer waiting in timed poll, tryTransfer
 * returns true while successfully transfering object.
 */
public void testTryTransfer3() 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));
        }
    });
    long startTime = System.nanoTime();
    assertSame(hotPotato, q.poll(LONG_DELAY_MS, MILLISECONDS));
    assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
    checkEmpty(q);
    awaitTermination(t);
}