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

Example 21 with Phaser

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

the class PhaseOverflow method xtestTiered.

void xtestTiered() throws Throwable {
    Phaser root = new Phaser();
    stateField.setLong(root, ((Integer.MAX_VALUE - 1L) << 32) | 1L);
    checkState(root, Integer.MAX_VALUE - 1, 0, 0);
    Phaser p1 = new Phaser(root, 1);
    checkState(root, Integer.MAX_VALUE - 1, 1, 1);
    checkState(p1, Integer.MAX_VALUE - 1, 1, 1);
    Phaser p2 = new Phaser(root, 2);
    checkState(root, Integer.MAX_VALUE - 1, 2, 2);
    checkState(p2, Integer.MAX_VALUE - 1, 2, 2);
    int ph = Integer.MAX_VALUE - 1;
    for (int k = 0; k < 5; k++) {
        checkState(root, ph, 2, 2);
        checkState(p1, ph, 1, 1);
        checkState(p2, ph, 2, 2);
        p1.arrive();
        checkState(root, ph, 2, 1);
        checkState(p1, ph, 1, 0);
        checkState(p2, ph, 2, 2);
        p2.arrive();
        checkState(root, ph, 2, 1);
        checkState(p1, ph, 1, 0);
        checkState(p2, ph, 2, 1);
        p2.arrive();
        ph = phaseInc(ph);
        checkState(root, ph, 2, 2);
        checkState(p1, ph, 1, 1);
        checkState(p2, ph, 2, 2);
    }
    equal(3, ph);
}

Example 22 with Phaser

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

the class PhaseOverflow method testTiered.

void testTiered() throws Throwable {
    Phaser root = new Phaser();
    // this is extremely dependent on internal representation
    stateField.setLong(root, ((Integer.MAX_VALUE - 1L) << 32) | 1L);
    checkState(root, Integer.MAX_VALUE - 1, 0, 0);
    Phaser p1 = new Phaser(root, 1);
    checkState(root, Integer.MAX_VALUE - 1, 1, 1);
    checkState(p1, Integer.MAX_VALUE - 1, 1, 1);
    Phaser p2 = new Phaser(root, 2);
    checkState(root, Integer.MAX_VALUE - 1, 2, 2);
    checkState(p2, Integer.MAX_VALUE - 1, 2, 2);
    int ph = Integer.MAX_VALUE - 1;
    for (int k = 0; k < 5; k++) {
        checkState(root, ph, 2, 2);
        checkState(p1, ph, 1, 1);
        checkState(p2, ph, 2, 2);
        p1.arrive();
        checkState(root, ph, 2, 1);
        checkState(p1, ph, 1, 0);
        checkState(p2, ph, 2, 2);
        p2.arrive();
        checkState(root, ph, 2, 1);
        checkState(p1, ph, 1, 0);
        checkState(p2, ph, 2, 1);
        p2.arrive();
        ph = phaseInc(ph);
        checkState(root, ph, 2, 2);
        checkState(p1, ph, 1, 1);
        checkState(p2, ph, 2, 2);
    }
    equal(3, ph);
}

Example 23 with Phaser

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

the class FickleRegister method test.

void test(String[] args) throws Throwable {
    final Phaser parent = new Phaser() {

        protected boolean onAdvance(int phase, int parties) {
            return false;
        }
    };
    final Phaser child1 = new Phaser(parent);
    final Phaser child2 = new Phaser(parent);
    final Phaser subchild1 = new Phaser(child1);
    final Phaser subchild2 = new Phaser(child2);
    final Phaser[] phasers = { parent, child1, child2, subchild1, subchild2 };
    int reps = 4;
    ArrayList<Thread> threads = new ArrayList<>();
    for (int j = 0; j < reps; ++j) {
        threads.add(new Thread(new Runner(subchild1)));
        threads.add(new Thread(new Runner(child1)));
        threads.add(new Thread(new Runner(parent)));
        threads.add(new Thread(new Runner(child2)));
        threads.add(new Thread(new Runner(subchild2)));
    }
    for (Thread thread : threads) thread.start();
    for (Thread thread : threads) thread.join();
    System.out.println("Parent:    " + parent);
    System.out.println("Child1:    " + child1);
    System.out.println("Child2:    " + child2);
    System.out.println("Subchild1: " + subchild1);
    System.out.println("Subchild2: " + subchild2);
    System.out.println("Iterations:" + count.get());
    for (Phaser phaser : phasers) {
        check(phaser.getPhase() > 0);
        equal(0, phaser.getRegisteredParties());
        equal(0, phaser.getUnarrivedParties());
        equal(parent.getPhase(), phaser.getPhase());
    }
}

Example 24 with Phaser

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

the class TieredArriveLoops method test.

void test(String[] args) throws Throwable {
    final Phaser parent = new Phaser();
    final Phaser child1 = new Phaser(parent);
    final Phaser child2 = new Phaser(parent);
    Thread t1 = new Thread(runner(child1));
    Thread t2 = new Thread(runner(child2));
    t1.start();
    t2.start();
    for (int prevPhase = 0, phase; ; prevPhase = phase) {
        phase = child2.getPhase();
        check(phase >= prevPhase);
        if (System.nanoTime() - quittingTimeNanos > 0) {
            System.err.printf("phase=%d%n", phase);
            child1.forceTermination();
            break;
        }
    }
    t1.join();
    t2.join();
}

Example 25 with Phaser

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

the class PhaseOverflow method testLeaf.

void testLeaf() throws Throwable {
    Phaser phaser = new Phaser();
    // this is extremely dependent on internal representation
    stateField.setLong(phaser, ((Integer.MAX_VALUE - 1L) << 32) | 1L);
    checkState(phaser, Integer.MAX_VALUE - 1, 0, 0);
    phaser.register();
    checkState(phaser, Integer.MAX_VALUE - 1, 1, 1);
    phaser.arrive();
    checkState(phaser, Integer.MAX_VALUE, 1, 1);
    phaser.arrive();
    checkState(phaser, 0, 1, 1);
    phaser.arrive();
    checkState(phaser, 1, 1, 1);
}