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* Other contributors include John Vint |
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*/ |
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< |
import junit.framework.*; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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10 |
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import java.util.ArrayList; |
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import java.util.List; |
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import java.util.concurrent.Phaser; |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.Phaser; |
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import java.util.concurrent.TimeoutException; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import static java.util.concurrent.TimeUnit.NANOSECONDS; |
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import java.util.concurrent.atomic.AtomicBoolean; |
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import java.util.concurrent.atomic.AtomicInteger; |
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import junit.framework.Test; |
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import junit.framework.TestSuite; |
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|
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public class PhaserTest extends JSR166TestCase { |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run(suite()); |
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main(suite(), args); |
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} |
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public static Test suite() { |
198 |
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Phaser child1 = new Phaser(root, 1); |
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Phaser child2 = new Phaser(root, 0); |
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assertEquals(0, child2.register()); |
201 |
+ |
assertState(root, 0, 2, 2); |
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assertState(child1, 0, 1, 1); |
203 |
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assertState(child2, 0, 1, 1); |
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assertEquals(0, child2.arriveAndDeregister()); |
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assertState(root, 0, 1, 1); |
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assertState(child1, 0, 1, 1); |
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assertState(child2, 0, 0, 0); |
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assertEquals(0, child2.register()); |
209 |
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assertEquals(0, child2.arriveAndDeregister()); |
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assertState(root, 0, 1, 1); |
211 |
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assertState(child1, 0, 1, 1); |
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assertState(child2, 0, 0, 0); |
213 |
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assertEquals(0, child1.arriveAndDeregister()); |
214 |
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assertTerminated(root, 1); |
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assertTerminated(child1, 1); |
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assertTerminated(child2, 1); |
217 |
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} |
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|
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/** |
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public void testArrive2() { |
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final Phaser phaser = new Phaser(); |
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assertEquals(0, phaser.register()); |
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List<Thread> threads = new ArrayList<Thread>(); |
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> |
List<Thread> threads = new ArrayList<>(); |
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for (int i = 0; i < 10; i++) { |
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assertEquals(0, phaser.register()); |
308 |
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threads.add(newStartedThread(new CheckedRunnable() { |
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* registered or unarrived parties would become negative |
339 |
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*/ |
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public void testArriveAndDeregister1() { |
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Phaser phaser = new Phaser(); |
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try { |
329 |
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Phaser phaser = new Phaser(); |
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phaser.arriveAndDeregister(); |
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shouldThrow(); |
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} catch (IllegalStateException success) {} |
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|
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await(pleaseInterrupt); |
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assertState(phaser, 0, 1, 1); |
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assertThreadsStayAlive(t1, t2); |
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assertThreadBlocks(t1, Thread.State.WAITING); |
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assertThreadBlocks(t2, Thread.State.TIMED_WAITING); |
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t1.interrupt(); |
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t2.interrupt(); |
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awaitTermination(t1); |
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}}); |
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|
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await(pleaseArrive); |
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waitForThreadToEnterWaitState(t, SHORT_DELAY_MS); |
527 |
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assertThreadBlocks(t, Thread.State.WAITING); |
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assertEquals(0, phaser.arrive()); |
529 |
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awaitTermination(t); |
530 |
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|
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}}); |
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|
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await(pleaseArrive); |
555 |
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waitForThreadToEnterWaitState(t, SHORT_DELAY_MS); |
555 |
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assertThreadBlocks(t, Thread.State.WAITING); |
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t.interrupt(); |
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assertEquals(0, phaser.arrive()); |
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awaitTermination(t); |
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public void testArriveAndAwaitAdvanceAfterInterrupt() { |
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final Phaser phaser = new Phaser(); |
570 |
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assertEquals(0, phaser.register()); |
571 |
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final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
571 |
> |
final CountDownLatch pleaseArrive = new CountDownLatch(1); |
572 |
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|
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Thread t = newStartedThread(new CheckedRunnable() { |
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public void realRun() { |
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Thread.currentThread().interrupt(); |
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assertEquals(0, phaser.register()); |
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pleaseInterrupt.countDown(); |
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> |
pleaseArrive.countDown(); |
578 |
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assertTrue(Thread.currentThread().isInterrupted()); |
579 |
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assertEquals(1, phaser.arriveAndAwaitAdvance()); |
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assertTrue(Thread.currentThread().isInterrupted()); |
580 |
> |
assertTrue(Thread.interrupted()); |
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}}); |
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|
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await(pleaseInterrupt); |
584 |
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waitForThreadToEnterWaitState(t, SHORT_DELAY_MS); |
583 |
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await(pleaseArrive); |
584 |
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assertThreadBlocks(t, Thread.State.WAITING); |
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Thread.currentThread().interrupt(); |
586 |
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assertEquals(1, phaser.arriveAndAwaitAdvance()); |
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assertTrue(Thread.interrupted()); |
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assertFalse(Thread.currentThread().isInterrupted()); |
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pleaseInterrupt.countDown(); |
604 |
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assertEquals(1, phaser.arriveAndAwaitAdvance()); |
605 |
< |
assertTrue(Thread.currentThread().isInterrupted()); |
605 |
> |
assertTrue(Thread.interrupted()); |
606 |
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}}); |
607 |
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|
608 |
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await(pleaseInterrupt); |
609 |
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waitForThreadToEnterWaitState(t, SHORT_DELAY_MS); |
609 |
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assertThreadBlocks(t, Thread.State.WAITING); |
610 |
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t.interrupt(); |
611 |
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Thread.currentThread().interrupt(); |
612 |
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assertEquals(1, phaser.arriveAndAwaitAdvance()); |
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public void testAwaitAdvance4() { |
622 |
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final Phaser phaser = new Phaser(4); |
623 |
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final AtomicInteger count = new AtomicInteger(0); |
624 |
< |
List<Thread> threads = new ArrayList<Thread>(); |
624 |
> |
List<Thread> threads = new ArrayList<>(); |
625 |
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for (int i = 0; i < 4; i++) |
626 |
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threads.add(newStartedThread(new CheckedRunnable() { |
627 |
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public void realRun() { |
628 |
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for (int k = 0; k < 3; k++) { |
629 |
< |
assertEquals(2*k+1, phaser.arriveAndAwaitAdvance()); |
629 |
> |
assertEquals(2 * k + 1, phaser.arriveAndAwaitAdvance()); |
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count.incrementAndGet(); |
631 |
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assertEquals(2*k+1, phaser.arrive()); |
632 |
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assertEquals(2*k+2, phaser.awaitAdvance(2*k+1)); |
633 |
< |
assertEquals(count.get(), 4*(k+1)); |
631 |
> |
assertEquals(2 * k + 1, phaser.arrive()); |
632 |
> |
assertEquals(2 * k + 2, phaser.awaitAdvance(2 * k + 1)); |
633 |
> |
assertEquals(4 * (k + 1), count.get()); |
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}}})); |
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|
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for (Thread thread : threads) |
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assertEquals(1, phaser.awaitAdvance(phaser.arrive())); |
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assertEquals(1, phaser.getPhase()); |
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assertEquals(1, phaser.register()); |
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List<Thread> threads = new ArrayList<Thread>(); |
648 |
> |
List<Thread> threads = new ArrayList<>(); |
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for (int i = 0; i < 8; i++) { |
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final CountDownLatch latch = new CountDownLatch(1); |
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final boolean goesFirst = ((i & 1) == 0); |
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*/ |
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public void testAwaitAdvanceTieredPhaser() throws Exception { |
675 |
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final Phaser parent = new Phaser(); |
676 |
< |
final List<Phaser> zeroPartyChildren = new ArrayList<Phaser>(3); |
677 |
< |
final List<Phaser> onePartyChildren = new ArrayList<Phaser>(3); |
676 |
> |
final List<Phaser> zeroPartyChildren = new ArrayList<>(3); |
677 |
> |
final List<Phaser> onePartyChildren = new ArrayList<>(3); |
678 |
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for (int i = 0; i < 3; i++) { |
679 |
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zeroPartyChildren.add(new Phaser(parent, 0)); |
680 |
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onePartyChildren.add(new Phaser(parent, 1)); |
681 |
|
} |
682 |
< |
final List<Phaser> phasers = new ArrayList<Phaser>(); |
682 |
> |
final List<Phaser> phasers = new ArrayList<>(); |
683 |
|
phasers.addAll(zeroPartyChildren); |
684 |
|
phasers.addAll(onePartyChildren); |
685 |
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phasers.add(parent); |
686 |
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for (Phaser phaser : phasers) { |
687 |
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assertEquals(-42, phaser.awaitAdvance(-42)); |
688 |
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assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42)); |
689 |
< |
assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42, SMALL_DELAY_MS, MILLISECONDS)); |
689 |
> |
assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42, MEDIUM_DELAY_MS, MILLISECONDS)); |
690 |
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} |
691 |
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|
692 |
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for (Phaser child : onePartyChildren) |
694 |
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for (Phaser phaser : phasers) { |
695 |
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assertEquals(-42, phaser.awaitAdvance(-42)); |
696 |
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assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42)); |
697 |
< |
assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42, SMALL_DELAY_MS, MILLISECONDS)); |
697 |
> |
assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42, MEDIUM_DELAY_MS, MILLISECONDS)); |
698 |
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assertEquals(1, phaser.awaitAdvance(0)); |
699 |
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assertEquals(1, phaser.awaitAdvanceInterruptibly(0)); |
700 |
< |
assertEquals(1, phaser.awaitAdvanceInterruptibly(0, SMALL_DELAY_MS, MILLISECONDS)); |
700 |
> |
assertEquals(1, phaser.awaitAdvanceInterruptibly(0, MEDIUM_DELAY_MS, MILLISECONDS)); |
701 |
|
} |
702 |
|
|
703 |
|
for (Phaser child : onePartyChildren) |
705 |
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for (Phaser phaser : phasers) { |
706 |
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assertEquals(-42, phaser.awaitAdvance(-42)); |
707 |
|
assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42)); |
708 |
< |
assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42, SMALL_DELAY_MS, MILLISECONDS)); |
708 |
> |
assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42, MEDIUM_DELAY_MS, MILLISECONDS)); |
709 |
|
assertEquals(2, phaser.awaitAdvance(0)); |
710 |
|
assertEquals(2, phaser.awaitAdvanceInterruptibly(0)); |
711 |
< |
assertEquals(2, phaser.awaitAdvanceInterruptibly(0, SMALL_DELAY_MS, MILLISECONDS)); |
711 |
> |
assertEquals(2, phaser.awaitAdvanceInterruptibly(0, MEDIUM_DELAY_MS, MILLISECONDS)); |
712 |
|
assertEquals(2, phaser.awaitAdvance(1)); |
713 |
|
assertEquals(2, phaser.awaitAdvanceInterruptibly(1)); |
714 |
< |
assertEquals(2, phaser.awaitAdvanceInterruptibly(1, SMALL_DELAY_MS, MILLISECONDS)); |
714 |
> |
assertEquals(2, phaser.awaitAdvanceInterruptibly(1, MEDIUM_DELAY_MS, MILLISECONDS)); |
715 |
|
} |
716 |
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} |
717 |
|
|
721 |
|
public void testAwaitAdvance6() { |
722 |
|
final Phaser phaser = new Phaser(3); |
723 |
|
final CountDownLatch pleaseForceTermination = new CountDownLatch(2); |
724 |
< |
final List<Thread> threads = new ArrayList<Thread>(); |
724 |
> |
final List<Thread> threads = new ArrayList<>(); |
725 |
|
for (int i = 0; i < 2; i++) { |
726 |
|
Runnable r = new CheckedRunnable() { |
727 |
|
public void realRun() { |
749 |
|
* unarrived parties |
750 |
|
*/ |
751 |
|
public void testArriveAndAwaitAdvance1() { |
752 |
+ |
Phaser phaser = new Phaser(); |
753 |
|
try { |
739 |
– |
Phaser phaser = new Phaser(); |
754 |
|
phaser.arriveAndAwaitAdvance(); |
755 |
|
shouldThrow(); |
756 |
|
} catch (IllegalStateException success) {} |
765 |
|
final Phaser phaser = new Phaser(1); |
766 |
|
final int THREADS = 3; |
767 |
|
final CountDownLatch pleaseArrive = new CountDownLatch(THREADS); |
768 |
< |
final List<Thread> threads = new ArrayList<Thread>(); |
768 |
> |
final List<Thread> threads = new ArrayList<>(); |
769 |
|
for (int i = 0; i < THREADS; i++) |
770 |
|
threads.add(newStartedThread(new CheckedRunnable() { |
771 |
|
public void realRun() { |
781 |
|
assertEquals(THREADS, phaser.getArrivedParties()); |
782 |
|
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
783 |
|
for (Thread thread : threads) |
784 |
< |
waitForThreadToEnterWaitState(thread, SHORT_DELAY_MS); |
784 |
> |
assertThreadBlocks(thread, Thread.State.WAITING); |
785 |
|
for (Thread thread : threads) |
786 |
|
assertTrue(thread.isAlive()); |
787 |
|
assertState(phaser, 0, THREADS + 1, 1); |