Examples with Phaser java8.util.concurrent.Phaser used on opensource projects

Example 11 with Phaser

use of java8.util.concurrent.Phaser in project streamsupport by stefan-zobel.

the class PhaserTest method testArrive2.

/**
 * arriveAndDeregister does not wait for others to arrive at barrier
 */
public void testArrive2() {
    final Phaser phaser = new Phaser();
    assertEquals(0, phaser.register());
    List<Thread> threads = new ArrayList<>();
    for (int i = 0; i < 10; i++) {
        assertEquals(0, phaser.register());
        threads.add(newStartedThread(new CheckedRunnable() {

            public void realRun() {
                assertEquals(0, phaser.arriveAndDeregister());
            }
        }));
    }
    for (Thread thread : threads) awaitTermination(thread);
    assertState(phaser, 0, 1, 1);
    assertEquals(0, phaser.arrive());
    assertState(phaser, 1, 1, 1);
}

Example 12 with Phaser

use of java8.util.concurrent.Phaser in project streamsupport by stefan-zobel.

the class PhaserTest method testAwaitAdvance2.

/**
 * awaitAdvance with a negative parameter will return without affecting the
 * phaser
 */
public void testAwaitAdvance2() {
    Phaser phaser = new Phaser();
    assertTrue(phaser.awaitAdvance(-1) < 0);
    assertState(phaser, 0, 0, 0);
}

Example 13 with Phaser

use of java8.util.concurrent.Phaser in project streamsupport by stefan-zobel.

the class PhaserTest method testRegister4.

/**
 * register causes the next arrive to not increment the phase
 * rather retain the phase number
 */
public void testRegister4() {
    Phaser phaser = new Phaser(1);
    assertEquals(0, phaser.arrive());
    assertEquals(1, phaser.register());
    assertEquals(1, phaser.arrive());
    assertState(phaser, 1, 2, 1);
}

Example 14 with Phaser

use of java8.util.concurrent.Phaser in project streamsupport by stefan-zobel.

the class PhaserTest method testArriveAndAwaitAdvance1.

/**
 * arriveAndAwaitAdvance throws IllegalStateException with no
 * unarrived parties
 */
public void testArriveAndAwaitAdvance1() {
    Phaser phaser = new Phaser();
    try {
        phaser.arriveAndAwaitAdvance();
        shouldThrow();
    } catch (IllegalStateException success) {
    }
}

Example 15 with Phaser

use of java8.util.concurrent.Phaser in project streamsupport by stefan-zobel.

the class PhaserTest method testRegister3.

/**
 * register() correctly returns the current barrier phase number
 * when invoked
 */
public void testRegister3() {
    Phaser phaser = new Phaser();
    assertEquals(0, phaser.register());
    assertEquals(0, phaser.arrive());
    assertEquals(1, phaser.register());
    assertState(phaser, 1, 2, 2);
}