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

Example 56 with LinkedTransferQueue

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

the class LinkedTransferQueueTest method testClear.

/**
 * clear removes all elements
 */
public void testClear() throws InterruptedException {
    LinkedTransferQueue q = populatedQueue(SIZE);
    q.clear();
    checkEmpty(q);
    assertEquals(Integer.MAX_VALUE, q.remainingCapacity());
    q.add(one);
    assertFalse(q.isEmpty());
    assertEquals(1, q.size());
    assertTrue(q.contains(one));
    q.clear();
    checkEmpty(q);
}

Example 57 with LinkedTransferQueue

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

the class LinkedTransferQueueTest method testPollInExecutor.

/**
 * timed poll retrieves elements across Executor threads
 */
public void testPollInExecutor() {
    final LinkedTransferQueue q = new LinkedTransferQueue();
    final CheckedBarrier threadsStarted = new CheckedBarrier(2);
    final ExecutorService executor = Executors.newFixedThreadPool(2);
    try (PoolCleaner cleaner = cleaner(executor)) {
        executor.execute(new CheckedRunnable() {

            public void realRun() throws InterruptedException {
                assertNull(q.poll());
                threadsStarted.await();
                long startTime = System.nanoTime();
                assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
                assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
                checkEmpty(q);
            }
        });
        executor.execute(new CheckedRunnable() {

            public void realRun() throws InterruptedException {
                threadsStarted.await();
                q.put(one);
            }
        });
    }
}

Example 58 with LinkedTransferQueue

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

the class LinkedTransferQueueTest method testOfferInExecutor.

/**
 * offer transfers elements across Executor tasks
 */
public void testOfferInExecutor() {
    final LinkedTransferQueue q = new LinkedTransferQueue();
    final CheckedBarrier threadsStarted = new CheckedBarrier(2);
    final ExecutorService executor = Executors.newFixedThreadPool(2);
    try (PoolCleaner cleaner = cleaner(executor)) {
        executor.execute(new CheckedRunnable() {

            public void realRun() throws InterruptedException {
                threadsStarted.await();
                long startTime = System.nanoTime();
                assertTrue(q.offer(one, LONG_DELAY_MS, MILLISECONDS));
                assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
            }
        });
        executor.execute(new CheckedRunnable() {

            public void realRun() throws InterruptedException {
                threadsStarted.await();
                assertSame(one, q.take());
                checkEmpty(q);
            }
        });
    }
}

Example 59 with LinkedTransferQueue

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

the class LinkedTransferQueueTest method testIteratorRemove.

/**
 * iterator.remove() removes current element
 */
public void testIteratorRemove() {
    final LinkedTransferQueue q = new LinkedTransferQueue();
    q.add(two);
    q.add(one);
    q.add(three);
    Iterator it = q.iterator();
    it.next();
    it.remove();
    it = q.iterator();
    assertSame(it.next(), one);
    assertSame(it.next(), three);
    assertFalse(it.hasNext());
}

Example 60 with LinkedTransferQueue

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

the class LinkedTransferQueueTest method testAddAllSelf.

/**
 * addAll(this) throws IllegalArgumentException
 */
public void testAddAllSelf() {
    LinkedTransferQueue q = populatedQueue(SIZE);
    try {
        q.addAll(q);
        shouldThrow();
    } catch (IllegalArgumentException success) {
    }
}