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

Example 6 with Phaser

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

the class PhaserTest method testArrive1.

/**
 * arrive() on a registered phaser increments phase.
 */
public void testArrive1() {
    Phaser phaser = new Phaser(1);
    assertState(phaser, 0, 1, 1);
    assertEquals(0, phaser.arrive());
    assertState(phaser, 1, 1, 1);
}

Example 7 with Phaser

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

the class PhaserTest method testBulkRegister3.

/**
 * Registering with a number of parties greater than or equal to 1<<16
 * throws IllegalStateException.
 */
public void testBulkRegister3() {
    assertEquals(0, new Phaser().bulkRegister((1 << 16) - 1));
    try {
        new Phaser().bulkRegister(1 << 16);
        shouldThrow();
    } catch (IllegalStateException success) {
    }
    try {
        new Phaser(2).bulkRegister((1 << 16) - 2);
        shouldThrow();
    } catch (IllegalStateException success) {
    }
}

Example 8 with Phaser

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

the class PhaserTest method testArriveAndDeregister3.

/**
 * arriveAndDeregister arrives at the barrier on a phaser with a parent and
 * when a deregistration occurs and causes the phaser to have zero parties
 * its parent will be deregistered as well
 */
public void testArriveAndDeregister3() {
    Phaser parent = new Phaser();
    Phaser child = new Phaser(parent);
    assertState(child, 0, 0, 0);
    assertState(parent, 0, 0, 0);
    assertEquals(0, child.register());
    assertState(child, 0, 1, 1);
    assertState(parent, 0, 1, 1);
    assertEquals(0, child.arriveAndDeregister());
    assertTerminated(child, 1);
    assertTerminated(parent, 1);
}

Example 9 with Phaser

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

the class PhaserTest method testBulkRegister2.

/**
 * bulkRegister should correctly record the number of unarrived
 * parties with the number of parties being registered
 */
public void testBulkRegister2() {
    Phaser phaser = new Phaser();
    assertEquals(0, phaser.bulkRegister(0));
    assertState(phaser, 0, 0, 0);
    assertEquals(0, phaser.bulkRegister(20));
    assertState(phaser, 0, 20, 20);
}

Example 10 with Phaser

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

the class PhaserTest method testConstructor5.

/**
 * The parent being input into the parameter should equal the original
 * parent when being returned
 */
public void testConstructor5() {
    Phaser parent = new Phaser();
    assertSame(parent, new Phaser(parent, 0).getParent());
    assertNull(new Phaser(null, 0).getParent());
}