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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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*/ |
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|
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import static java.util.concurrent.TimeUnit.SECONDS; |
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|
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import java.util.HashSet; |
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import java.util.concurrent.CancellationException; |
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import java.util.concurrent.CountedCompleter; |
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import java.util.concurrent.ExecutionException; |
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import java.util.concurrent.ForkJoinPool; |
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import java.util.concurrent.ForkJoinTask; |
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import java.util.concurrent.ThreadLocalRandom; |
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import java.util.concurrent.TimeoutException; |
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import java.util.concurrent.atomic.AtomicInteger; |
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import java.util.concurrent.atomic.AtomicReference; |
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|
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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 CountedCompleterTest extends JSR166TestCase { |
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|
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public static void main(String[] args) { |
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main(suite(), args); |
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} |
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|
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public static Test suite() { |
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return new TestSuite(CountedCompleterTest.class); |
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} |
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|
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// Runs with "mainPool" use > 1 thread. singletonPool tests use 1 |
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static final int mainPoolSize = |
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Math.max(2, Runtime.getRuntime().availableProcessors()); |
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|
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private static ForkJoinPool mainPool() { |
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return new ForkJoinPool(mainPoolSize); |
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} |
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|
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private static ForkJoinPool singletonPool() { |
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return new ForkJoinPool(1); |
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} |
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|
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private static ForkJoinPool asyncSingletonPool() { |
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return new ForkJoinPool(1, |
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ForkJoinPool.defaultForkJoinWorkerThreadFactory, |
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null, true); |
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} |
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|
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private void testInvokeOnPool(ForkJoinPool pool, ForkJoinTask a) { |
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try (PoolCleaner cleaner = cleaner(pool)) { |
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assertFalse(a.isDone()); |
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assertFalse(a.isCompletedNormally()); |
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assertFalse(a.isCompletedAbnormally()); |
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assertFalse(a.isCancelled()); |
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assertNull(a.getException()); |
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assertNull(a.getRawResult()); |
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|
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assertNull(pool.invoke(a)); |
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|
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assertTrue(a.isDone()); |
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assertTrue(a.isCompletedNormally()); |
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assertFalse(a.isCompletedAbnormally()); |
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assertFalse(a.isCancelled()); |
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assertNull(a.getException()); |
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assertNull(a.getRawResult()); |
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} |
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} |
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|
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void checkNotDone(CountedCompleter a) { |
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assertFalse(a.isDone()); |
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assertFalse(a.isCompletedNormally()); |
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assertFalse(a.isCompletedAbnormally()); |
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assertFalse(a.isCancelled()); |
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assertNull(a.getException()); |
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assertNull(a.getRawResult()); |
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|
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try { |
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a.get(0L, SECONDS); |
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shouldThrow(); |
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} catch (TimeoutException success) { |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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} |
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|
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void checkCompletedNormally(CountedCompleter<?> a) { |
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assertTrue(a.isDone()); |
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assertFalse(a.isCancelled()); |
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assertTrue(a.isCompletedNormally()); |
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assertFalse(a.isCompletedAbnormally()); |
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assertNull(a.getException()); |
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assertNull(a.getRawResult()); |
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|
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{ |
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Thread.currentThread().interrupt(); |
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long startTime = System.nanoTime(); |
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assertNull(a.join()); |
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assertTrue(millisElapsedSince(startTime) < SMALL_DELAY_MS); |
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Thread.interrupted(); |
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} |
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|
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{ |
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Thread.currentThread().interrupt(); |
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long startTime = System.nanoTime(); |
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a.quietlyJoin(); // should be no-op |
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assertTrue(millisElapsedSince(startTime) < SMALL_DELAY_MS); |
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Thread.interrupted(); |
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} |
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|
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assertFalse(a.cancel(false)); |
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assertFalse(a.cancel(true)); |
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try { |
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assertNull(a.get()); |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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try { |
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assertNull(a.get(5L, SECONDS)); |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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} |
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|
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void checkCancelled(CountedCompleter a) { |
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assertTrue(a.isDone()); |
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assertTrue(a.isCancelled()); |
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assertFalse(a.isCompletedNormally()); |
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assertTrue(a.isCompletedAbnormally()); |
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assertTrue(a.getException() instanceof CancellationException); |
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assertNull(a.getRawResult()); |
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assertTrue(a.cancel(false)); |
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assertTrue(a.cancel(true)); |
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|
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try { |
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Thread.currentThread().interrupt(); |
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a.join(); |
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shouldThrow(); |
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} catch (CancellationException success) { |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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Thread.interrupted(); |
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|
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{ |
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long startTime = System.nanoTime(); |
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a.quietlyJoin(); // should be no-op |
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assertTrue(millisElapsedSince(startTime) < SMALL_DELAY_MS); |
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} |
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|
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try { |
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a.get(); |
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shouldThrow(); |
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} catch (CancellationException success) { |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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|
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try { |
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a.get(5L, SECONDS); |
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shouldThrow(); |
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} catch (CancellationException success) { |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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} |
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|
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void checkCompletedAbnormally(CountedCompleter a, Throwable t) { |
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assertTrue(a.isDone()); |
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assertFalse(a.isCancelled()); |
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assertFalse(a.isCompletedNormally()); |
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assertTrue(a.isCompletedAbnormally()); |
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assertSame(t.getClass(), a.getException().getClass()); |
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assertNull(a.getRawResult()); |
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assertFalse(a.cancel(false)); |
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assertFalse(a.cancel(true)); |
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|
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try { |
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Thread.currentThread().interrupt(); |
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a.join(); |
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shouldThrow(); |
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} catch (Throwable expected) { |
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assertSame(t.getClass(), expected.getClass()); |
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} |
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Thread.interrupted(); |
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|
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{ |
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long startTime = System.nanoTime(); |
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a.quietlyJoin(); // should be no-op |
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assertTrue(millisElapsedSince(startTime) < SMALL_DELAY_MS); |
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} |
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|
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try { |
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a.get(); |
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shouldThrow(); |
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} catch (ExecutionException success) { |
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assertSame(t.getClass(), success.getCause().getClass()); |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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|
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try { |
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a.get(5L, SECONDS); |
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shouldThrow(); |
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} catch (ExecutionException success) { |
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assertSame(t.getClass(), success.getCause().getClass()); |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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|
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try { |
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a.invoke(); |
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shouldThrow(); |
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} catch (Throwable success) { |
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assertSame(t, success); |
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} |
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} |
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|
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public static final class FJException extends RuntimeException { |
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FJException() { super(); } |
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} |
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|
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abstract class CheckedCC extends CountedCompleter<Object> { |
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final AtomicInteger computeN = new AtomicInteger(0); |
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final AtomicInteger onCompletionN = new AtomicInteger(0); |
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final AtomicInteger onExceptionalCompletionN = new AtomicInteger(0); |
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final AtomicInteger setRawResultN = new AtomicInteger(0); |
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final AtomicReference<Object> rawResult = new AtomicReference<Object>(null); |
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int computeN() { return computeN.get(); } |
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int onCompletionN() { return onCompletionN.get(); } |
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int onExceptionalCompletionN() { return onExceptionalCompletionN.get(); } |
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int setRawResultN() { return setRawResultN.get(); } |
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|
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CheckedCC() { super(); } |
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CheckedCC(CountedCompleter p) { super(p); } |
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CheckedCC(CountedCompleter p, int n) { super(p, n); } |
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abstract void realCompute(); |
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public final void compute() { |
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computeN.incrementAndGet(); |
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realCompute(); |
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} |
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public void onCompletion(CountedCompleter caller) { |
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onCompletionN.incrementAndGet(); |
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super.onCompletion(caller); |
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} |
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public boolean onExceptionalCompletion(Throwable ex, |
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CountedCompleter caller) { |
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onExceptionalCompletionN.incrementAndGet(); |
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assertNotNull(ex); |
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assertTrue(isCompletedAbnormally()); |
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assertTrue(super.onExceptionalCompletion(ex, caller)); |
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return true; |
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} |
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protected void setRawResult(Object t) { |
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setRawResultN.incrementAndGet(); |
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rawResult.set(t); |
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super.setRawResult(t); |
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} |
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void checkIncomplete() { |
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assertEquals(0, computeN()); |
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assertEquals(0, onCompletionN()); |
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assertEquals(0, onExceptionalCompletionN()); |
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assertEquals(0, setRawResultN()); |
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checkNotDone(this); |
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} |
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void checkCompletes(Object rawResult) { |
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checkIncomplete(); |
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int pendingCount = getPendingCount(); |
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complete(rawResult); |
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assertEquals(pendingCount, getPendingCount()); |
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assertEquals(0, computeN()); |
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assertEquals(1, onCompletionN()); |
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assertEquals(0, onExceptionalCompletionN()); |
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assertEquals(1, setRawResultN()); |
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assertSame(rawResult, this.rawResult.get()); |
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checkCompletedNormally(this); |
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} |
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void checkCompletesExceptionally(Throwable ex) { |
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checkIncomplete(); |
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completeExceptionally(ex); |
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checkCompletedExceptionally(ex); |
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} |
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void checkCompletedExceptionally(Throwable ex) { |
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assertEquals(0, computeN()); |
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assertEquals(0, onCompletionN()); |
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assertEquals(1, onExceptionalCompletionN()); |
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assertEquals(0, setRawResultN()); |
274 |
assertNull(this.rawResult.get()); |
275 |
checkCompletedAbnormally(this, ex); |
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} |
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} |
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|
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final class NoopCC extends CheckedCC { |
280 |
NoopCC() { super(); } |
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NoopCC(CountedCompleter p) { super(p); } |
282 |
NoopCC(CountedCompleter p, int initialPendingCount) { |
283 |
super(p, initialPendingCount); |
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} |
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protected void realCompute() {} |
286 |
} |
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|
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/** |
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* A newly constructed CountedCompleter is not completed; |
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* complete() causes completion. pendingCount is ignored. |
291 |
*/ |
292 |
public void testComplete() { |
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for (Object x : new Object[] { Boolean.TRUE, null }) { |
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for (int pendingCount : new int[] { 0, 42 }) { |
295 |
testComplete(new NoopCC(), x, pendingCount); |
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testComplete(new NoopCC(new NoopCC()), x, pendingCount); |
297 |
} |
298 |
} |
299 |
} |
300 |
void testComplete(NoopCC cc, Object x, int pendingCount) { |
301 |
cc.setPendingCount(pendingCount); |
302 |
cc.checkCompletes(x); |
303 |
assertEquals(pendingCount, cc.getPendingCount()); |
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} |
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|
306 |
/** |
307 |
* completeExceptionally completes exceptionally |
308 |
*/ |
309 |
public void testCompleteExceptionally() { |
310 |
new NoopCC() |
311 |
.checkCompletesExceptionally(new FJException()); |
312 |
new NoopCC(new NoopCC()) |
313 |
.checkCompletesExceptionally(new FJException()); |
314 |
} |
315 |
|
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/** |
317 |
* completeExceptionally(null) surprisingly has the same effect as |
318 |
* completeExceptionally(new RuntimeException()) |
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*/ |
320 |
public void testCompleteExceptionally_null() { |
321 |
NoopCC a = new NoopCC(); |
322 |
a.completeExceptionally(null); |
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try { |
324 |
a.invoke(); |
325 |
shouldThrow(); |
326 |
} catch (RuntimeException success) { |
327 |
assertSame(success.getClass(), RuntimeException.class); |
328 |
assertNull(success.getCause()); |
329 |
a.checkCompletedExceptionally(success); |
330 |
} |
331 |
} |
332 |
|
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/** |
334 |
* setPendingCount sets the reported pending count |
335 |
*/ |
336 |
public void testSetPendingCount() { |
337 |
NoopCC a = new NoopCC(); |
338 |
assertEquals(0, a.getPendingCount()); |
339 |
int[] vals = { |
340 |
-1, 0, 1, |
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Integer.MIN_VALUE, |
342 |
Integer.MAX_VALUE, |
343 |
}; |
344 |
for (int val : vals) { |
345 |
a.setPendingCount(val); |
346 |
assertEquals(val, a.getPendingCount()); |
347 |
} |
348 |
} |
349 |
|
350 |
/** |
351 |
* addToPendingCount adds to the reported pending count |
352 |
*/ |
353 |
public void testAddToPendingCount() { |
354 |
NoopCC a = new NoopCC(); |
355 |
assertEquals(0, a.getPendingCount()); |
356 |
a.addToPendingCount(1); |
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assertEquals(1, a.getPendingCount()); |
358 |
a.addToPendingCount(27); |
359 |
assertEquals(28, a.getPendingCount()); |
360 |
a.addToPendingCount(-28); |
361 |
assertEquals(0, a.getPendingCount()); |
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} |
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|
364 |
/** |
365 |
* decrementPendingCountUnlessZero decrements reported pending |
366 |
* count unless zero |
367 |
*/ |
368 |
public void testDecrementPendingCountUnlessZero() { |
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NoopCC a = new NoopCC(null, 2); |
370 |
assertEquals(2, a.getPendingCount()); |
371 |
assertEquals(2, a.decrementPendingCountUnlessZero()); |
372 |
assertEquals(1, a.getPendingCount()); |
373 |
assertEquals(1, a.decrementPendingCountUnlessZero()); |
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assertEquals(0, a.getPendingCount()); |
375 |
assertEquals(0, a.decrementPendingCountUnlessZero()); |
376 |
assertEquals(0, a.getPendingCount()); |
377 |
a.setPendingCount(-1); |
378 |
assertEquals(-1, a.decrementPendingCountUnlessZero()); |
379 |
assertEquals(-2, a.getPendingCount()); |
380 |
} |
381 |
|
382 |
/** |
383 |
* compareAndSetPendingCount compares and sets the reported |
384 |
* pending count |
385 |
*/ |
386 |
public void testCompareAndSetPendingCount() { |
387 |
NoopCC a = new NoopCC(); |
388 |
assertEquals(0, a.getPendingCount()); |
389 |
assertTrue(a.compareAndSetPendingCount(0, 1)); |
390 |
assertEquals(1, a.getPendingCount()); |
391 |
assertTrue(a.compareAndSetPendingCount(1, 2)); |
392 |
assertEquals(2, a.getPendingCount()); |
393 |
assertFalse(a.compareAndSetPendingCount(1, 3)); |
394 |
assertEquals(2, a.getPendingCount()); |
395 |
} |
396 |
|
397 |
/** |
398 |
* getCompleter returns parent or null if at root |
399 |
*/ |
400 |
public void testGetCompleter() { |
401 |
NoopCC a = new NoopCC(); |
402 |
assertNull(a.getCompleter()); |
403 |
CountedCompleter b = new NoopCC(a); |
404 |
assertSame(a, b.getCompleter()); |
405 |
CountedCompleter c = new NoopCC(b); |
406 |
assertSame(b, c.getCompleter()); |
407 |
} |
408 |
|
409 |
/** |
410 |
* getRoot returns self if no parent, else parent's root |
411 |
*/ |
412 |
public void testGetRoot() { |
413 |
NoopCC a = new NoopCC(); |
414 |
NoopCC b = new NoopCC(a); |
415 |
NoopCC c = new NoopCC(b); |
416 |
assertSame(a, a.getRoot()); |
417 |
assertSame(a, b.getRoot()); |
418 |
assertSame(a, c.getRoot()); |
419 |
} |
420 |
|
421 |
/** |
422 |
* tryComplete decrements pending count unless zero, in which case |
423 |
* causes completion |
424 |
*/ |
425 |
public void testTryComplete() { |
426 |
NoopCC a = new NoopCC(); |
427 |
assertEquals(0, a.getPendingCount()); |
428 |
int n = 3; |
429 |
a.setPendingCount(n); |
430 |
for (; n > 0; n--) { |
431 |
assertEquals(n, a.getPendingCount()); |
432 |
a.tryComplete(); |
433 |
a.checkIncomplete(); |
434 |
assertEquals(n - 1, a.getPendingCount()); |
435 |
} |
436 |
a.tryComplete(); |
437 |
assertEquals(0, a.computeN()); |
438 |
assertEquals(1, a.onCompletionN()); |
439 |
assertEquals(0, a.onExceptionalCompletionN()); |
440 |
assertEquals(0, a.setRawResultN()); |
441 |
checkCompletedNormally(a); |
442 |
} |
443 |
|
444 |
/** |
445 |
* propagateCompletion decrements pending count unless zero, in |
446 |
* which case causes completion, without invoking onCompletion |
447 |
*/ |
448 |
public void testPropagateCompletion() { |
449 |
NoopCC a = new NoopCC(); |
450 |
assertEquals(0, a.getPendingCount()); |
451 |
int n = 3; |
452 |
a.setPendingCount(n); |
453 |
for (; n > 0; n--) { |
454 |
assertEquals(n, a.getPendingCount()); |
455 |
a.propagateCompletion(); |
456 |
a.checkIncomplete(); |
457 |
assertEquals(n - 1, a.getPendingCount()); |
458 |
} |
459 |
a.propagateCompletion(); |
460 |
assertEquals(0, a.computeN()); |
461 |
assertEquals(0, a.onCompletionN()); |
462 |
assertEquals(0, a.onExceptionalCompletionN()); |
463 |
assertEquals(0, a.setRawResultN()); |
464 |
checkCompletedNormally(a); |
465 |
} |
466 |
|
467 |
/** |
468 |
* firstComplete returns this if pending count is zero else null |
469 |
*/ |
470 |
public void testFirstComplete() { |
471 |
NoopCC a = new NoopCC(); |
472 |
a.setPendingCount(1); |
473 |
assertNull(a.firstComplete()); |
474 |
a.checkIncomplete(); |
475 |
assertSame(a, a.firstComplete()); |
476 |
a.checkIncomplete(); |
477 |
} |
478 |
|
479 |
/** |
480 |
* firstComplete.nextComplete returns parent if pending count is |
481 |
* zero else null |
482 |
*/ |
483 |
public void testNextComplete() { |
484 |
NoopCC a = new NoopCC(); |
485 |
NoopCC b = new NoopCC(a); |
486 |
a.setPendingCount(1); |
487 |
b.setPendingCount(1); |
488 |
assertNull(b.firstComplete()); |
489 |
assertSame(b, b.firstComplete()); |
490 |
assertNull(b.nextComplete()); |
491 |
a.checkIncomplete(); |
492 |
b.checkIncomplete(); |
493 |
assertSame(a, b.nextComplete()); |
494 |
assertSame(a, b.nextComplete()); |
495 |
a.checkIncomplete(); |
496 |
b.checkIncomplete(); |
497 |
assertNull(a.nextComplete()); |
498 |
b.checkIncomplete(); |
499 |
checkCompletedNormally(a); |
500 |
} |
501 |
|
502 |
/** |
503 |
* quietlyCompleteRoot completes root task and only root task |
504 |
*/ |
505 |
public void testQuietlyCompleteRoot() { |
506 |
NoopCC a = new NoopCC(); |
507 |
NoopCC b = new NoopCC(a); |
508 |
NoopCC c = new NoopCC(b); |
509 |
a.setPendingCount(1); |
510 |
b.setPendingCount(1); |
511 |
c.setPendingCount(1); |
512 |
c.quietlyCompleteRoot(); |
513 |
assertTrue(a.isDone()); |
514 |
assertFalse(b.isDone()); |
515 |
assertFalse(c.isDone()); |
516 |
} |
517 |
|
518 |
// Invocation tests use some interdependent task classes |
519 |
// to better test propagation etc |
520 |
|
521 |
/** |
522 |
* Version of Fibonacci with different classes for left vs right forks |
523 |
*/ |
524 |
abstract class CCF extends CheckedCC { |
525 |
int number; |
526 |
int rnumber; |
527 |
|
528 |
public CCF(CountedCompleter parent, int n) { |
529 |
super(parent, 1); |
530 |
this.number = n; |
531 |
} |
532 |
|
533 |
protected final void realCompute() { |
534 |
CCF f = this; |
535 |
int n = number; |
536 |
while (n >= 2) { |
537 |
new RCCF(f, n - 2).fork(); |
538 |
f = new LCCF(f, --n); |
539 |
} |
540 |
f.complete(null); |
541 |
} |
542 |
} |
543 |
|
544 |
final class LCCF extends CCF { |
545 |
public LCCF(int n) { this(null, n); } |
546 |
public LCCF(CountedCompleter parent, int n) { |
547 |
super(parent, n); |
548 |
} |
549 |
public final void onCompletion(CountedCompleter caller) { |
550 |
super.onCompletion(caller); |
551 |
CCF p = (CCF)getCompleter(); |
552 |
int n = number + rnumber; |
553 |
if (p != null) |
554 |
p.number = n; |
555 |
else |
556 |
number = n; |
557 |
} |
558 |
} |
559 |
final class RCCF extends CCF { |
560 |
public RCCF(CountedCompleter parent, int n) { |
561 |
super(parent, n); |
562 |
} |
563 |
public final void onCompletion(CountedCompleter caller) { |
564 |
super.onCompletion(caller); |
565 |
CCF p = (CCF)getCompleter(); |
566 |
int n = number + rnumber; |
567 |
if (p != null) |
568 |
p.rnumber = n; |
569 |
else |
570 |
number = n; |
571 |
} |
572 |
} |
573 |
|
574 |
// Version of CCF with forced failure in left completions |
575 |
abstract class FailingCCF extends CheckedCC { |
576 |
int number; |
577 |
int rnumber; |
578 |
|
579 |
public FailingCCF(CountedCompleter parent, int n) { |
580 |
super(parent, 1); |
581 |
this.number = n; |
582 |
} |
583 |
|
584 |
protected final void realCompute() { |
585 |
FailingCCF f = this; |
586 |
int n = number; |
587 |
while (n >= 2) { |
588 |
new RFCCF(f, n - 2).fork(); |
589 |
f = new LFCCF(f, --n); |
590 |
} |
591 |
f.complete(null); |
592 |
} |
593 |
} |
594 |
|
595 |
final class LFCCF extends FailingCCF { |
596 |
public LFCCF(int n) { this(null, n); } |
597 |
public LFCCF(CountedCompleter parent, int n) { |
598 |
super(parent, n); |
599 |
} |
600 |
public final void onCompletion(CountedCompleter caller) { |
601 |
super.onCompletion(caller); |
602 |
FailingCCF p = (FailingCCF)getCompleter(); |
603 |
int n = number + rnumber; |
604 |
if (p != null) |
605 |
p.number = n; |
606 |
else |
607 |
number = n; |
608 |
} |
609 |
} |
610 |
final class RFCCF extends FailingCCF { |
611 |
public RFCCF(CountedCompleter parent, int n) { |
612 |
super(parent, n); |
613 |
} |
614 |
public final void onCompletion(CountedCompleter caller) { |
615 |
super.onCompletion(caller); |
616 |
completeExceptionally(new FJException()); |
617 |
} |
618 |
} |
619 |
|
620 |
/** |
621 |
* invoke returns when task completes normally. |
622 |
* isCompletedAbnormally and isCancelled return false for normally |
623 |
* completed tasks; getRawResult returns null. |
624 |
*/ |
625 |
public void testInvoke() { |
626 |
ForkJoinTask a = new CheckedRecursiveAction() { |
627 |
protected void realCompute() { |
628 |
CCF f = new LCCF(8); |
629 |
assertNull(f.invoke()); |
630 |
assertEquals(21, f.number); |
631 |
checkCompletedNormally(f); |
632 |
}}; |
633 |
testInvokeOnPool(mainPool(), a); |
634 |
} |
635 |
|
636 |
/** |
637 |
* quietlyInvoke task returns when task completes normally. |
638 |
* isCompletedAbnormally and isCancelled return false for normally |
639 |
* completed tasks |
640 |
*/ |
641 |
public void testQuietlyInvoke() { |
642 |
ForkJoinTask a = new CheckedRecursiveAction() { |
643 |
protected void realCompute() { |
644 |
CCF f = new LCCF(8); |
645 |
f.quietlyInvoke(); |
646 |
assertEquals(21, f.number); |
647 |
checkCompletedNormally(f); |
648 |
}}; |
649 |
testInvokeOnPool(mainPool(), a); |
650 |
} |
651 |
|
652 |
/** |
653 |
* join of a forked task returns when task completes |
654 |
*/ |
655 |
public void testForkJoin() { |
656 |
ForkJoinTask a = new CheckedRecursiveAction() { |
657 |
protected void realCompute() { |
658 |
CCF f = new LCCF(8); |
659 |
assertSame(f, f.fork()); |
660 |
assertNull(f.join()); |
661 |
assertEquals(21, f.number); |
662 |
checkCompletedNormally(f); |
663 |
}}; |
664 |
testInvokeOnPool(mainPool(), a); |
665 |
} |
666 |
|
667 |
/** |
668 |
* get of a forked task returns when task completes |
669 |
*/ |
670 |
public void testForkGet() { |
671 |
ForkJoinTask a = new CheckedRecursiveAction() { |
672 |
protected void realCompute() throws Exception { |
673 |
CCF f = new LCCF(8); |
674 |
assertSame(f, f.fork()); |
675 |
assertNull(f.get()); |
676 |
assertEquals(21, f.number); |
677 |
checkCompletedNormally(f); |
678 |
}}; |
679 |
testInvokeOnPool(mainPool(), a); |
680 |
} |
681 |
|
682 |
/** |
683 |
* timed get of a forked task returns when task completes |
684 |
*/ |
685 |
public void testForkTimedGet() { |
686 |
ForkJoinTask a = new CheckedRecursiveAction() { |
687 |
protected void realCompute() throws Exception { |
688 |
CCF f = new LCCF(8); |
689 |
assertSame(f, f.fork()); |
690 |
assertNull(f.get(LONG_DELAY_MS, MILLISECONDS)); |
691 |
assertEquals(21, f.number); |
692 |
checkCompletedNormally(f); |
693 |
}}; |
694 |
testInvokeOnPool(mainPool(), a); |
695 |
} |
696 |
|
697 |
/** |
698 |
* timed get with null time unit throws NPE |
699 |
*/ |
700 |
public void testForkTimedGetNPE() { |
701 |
ForkJoinTask a = new CheckedRecursiveAction() { |
702 |
protected void realCompute() throws Exception { |
703 |
CCF f = new LCCF(8); |
704 |
assertSame(f, f.fork()); |
705 |
try { |
706 |
f.get(5L, null); |
707 |
shouldThrow(); |
708 |
} catch (NullPointerException success) {} |
709 |
}}; |
710 |
testInvokeOnPool(mainPool(), a); |
711 |
} |
712 |
|
713 |
/** |
714 |
* quietlyJoin of a forked task returns when task completes |
715 |
*/ |
716 |
public void testForkQuietlyJoin() { |
717 |
ForkJoinTask a = new CheckedRecursiveAction() { |
718 |
protected void realCompute() { |
719 |
CCF f = new LCCF(8); |
720 |
assertSame(f, f.fork()); |
721 |
f.quietlyJoin(); |
722 |
assertEquals(21, f.number); |
723 |
checkCompletedNormally(f); |
724 |
}}; |
725 |
testInvokeOnPool(mainPool(), a); |
726 |
} |
727 |
|
728 |
/** |
729 |
* helpQuiesce returns when tasks are complete. |
730 |
* getQueuedTaskCount returns 0 when quiescent |
731 |
*/ |
732 |
public void testForkHelpQuiesce() { |
733 |
ForkJoinTask a = new CheckedRecursiveAction() { |
734 |
protected void realCompute() { |
735 |
CCF f = new LCCF(8); |
736 |
assertSame(f, f.fork()); |
737 |
helpQuiesce(); |
738 |
assertEquals(21, f.number); |
739 |
assertEquals(0, getQueuedTaskCount()); |
740 |
checkCompletedNormally(f); |
741 |
}}; |
742 |
testInvokeOnPool(mainPool(), a); |
743 |
} |
744 |
|
745 |
/** |
746 |
* invoke task throws exception when task completes abnormally |
747 |
*/ |
748 |
public void testAbnormalInvoke() { |
749 |
ForkJoinTask a = new CheckedRecursiveAction() { |
750 |
protected void realCompute() { |
751 |
FailingCCF f = new LFCCF(8); |
752 |
try { |
753 |
f.invoke(); |
754 |
shouldThrow(); |
755 |
} catch (FJException success) { |
756 |
checkCompletedAbnormally(f, success); |
757 |
} |
758 |
}}; |
759 |
testInvokeOnPool(mainPool(), a); |
760 |
} |
761 |
|
762 |
/** |
763 |
* quietlyInvoke task returns when task completes abnormally |
764 |
*/ |
765 |
public void testAbnormalQuietlyInvoke() { |
766 |
ForkJoinTask a = new CheckedRecursiveAction() { |
767 |
protected void realCompute() { |
768 |
FailingCCF f = new LFCCF(8); |
769 |
f.quietlyInvoke(); |
770 |
assertTrue(f.getException() instanceof FJException); |
771 |
checkCompletedAbnormally(f, f.getException()); |
772 |
}}; |
773 |
testInvokeOnPool(mainPool(), a); |
774 |
} |
775 |
|
776 |
/** |
777 |
* join of a forked task throws exception when task completes abnormally |
778 |
*/ |
779 |
public void testAbnormalForkJoin() { |
780 |
ForkJoinTask a = new CheckedRecursiveAction() { |
781 |
protected void realCompute() { |
782 |
FailingCCF f = new LFCCF(8); |
783 |
assertSame(f, f.fork()); |
784 |
try { |
785 |
f.join(); |
786 |
shouldThrow(); |
787 |
} catch (FJException success) { |
788 |
checkCompletedAbnormally(f, success); |
789 |
} |
790 |
}}; |
791 |
testInvokeOnPool(mainPool(), a); |
792 |
} |
793 |
|
794 |
/** |
795 |
* get of a forked task throws exception when task completes abnormally |
796 |
*/ |
797 |
public void testAbnormalForkGet() { |
798 |
ForkJoinTask a = new CheckedRecursiveAction() { |
799 |
protected void realCompute() throws Exception { |
800 |
FailingCCF f = new LFCCF(8); |
801 |
assertSame(f, f.fork()); |
802 |
try { |
803 |
f.get(); |
804 |
shouldThrow(); |
805 |
} catch (ExecutionException success) { |
806 |
Throwable cause = success.getCause(); |
807 |
assertTrue(cause instanceof FJException); |
808 |
checkCompletedAbnormally(f, cause); |
809 |
} |
810 |
}}; |
811 |
testInvokeOnPool(mainPool(), a); |
812 |
} |
813 |
|
814 |
/** |
815 |
* timed get of a forked task throws exception when task completes abnormally |
816 |
*/ |
817 |
public void testAbnormalForkTimedGet() { |
818 |
ForkJoinTask a = new CheckedRecursiveAction() { |
819 |
protected void realCompute() throws Exception { |
820 |
FailingCCF f = new LFCCF(8); |
821 |
assertSame(f, f.fork()); |
822 |
try { |
823 |
f.get(LONG_DELAY_MS, MILLISECONDS); |
824 |
shouldThrow(); |
825 |
} catch (ExecutionException success) { |
826 |
Throwable cause = success.getCause(); |
827 |
assertTrue(cause instanceof FJException); |
828 |
checkCompletedAbnormally(f, cause); |
829 |
} |
830 |
}}; |
831 |
testInvokeOnPool(mainPool(), a); |
832 |
} |
833 |
|
834 |
/** |
835 |
* quietlyJoin of a forked task returns when task completes abnormally |
836 |
*/ |
837 |
public void testAbnormalForkQuietlyJoin() { |
838 |
ForkJoinTask a = new CheckedRecursiveAction() { |
839 |
protected void realCompute() { |
840 |
FailingCCF f = new LFCCF(8); |
841 |
assertSame(f, f.fork()); |
842 |
f.quietlyJoin(); |
843 |
assertTrue(f.getException() instanceof FJException); |
844 |
checkCompletedAbnormally(f, f.getException()); |
845 |
}}; |
846 |
testInvokeOnPool(mainPool(), a); |
847 |
} |
848 |
|
849 |
/** |
850 |
* invoke task throws exception when task cancelled |
851 |
*/ |
852 |
public void testCancelledInvoke() { |
853 |
ForkJoinTask a = new CheckedRecursiveAction() { |
854 |
protected void realCompute() { |
855 |
CCF f = new LCCF(8); |
856 |
assertTrue(f.cancel(true)); |
857 |
try { |
858 |
f.invoke(); |
859 |
shouldThrow(); |
860 |
} catch (CancellationException success) { |
861 |
checkCancelled(f); |
862 |
} |
863 |
}}; |
864 |
testInvokeOnPool(mainPool(), a); |
865 |
} |
866 |
|
867 |
/** |
868 |
* join of a forked task throws exception when task cancelled |
869 |
*/ |
870 |
public void testCancelledForkJoin() { |
871 |
ForkJoinTask a = new CheckedRecursiveAction() { |
872 |
protected void realCompute() { |
873 |
CCF f = new LCCF(8); |
874 |
assertTrue(f.cancel(true)); |
875 |
assertSame(f, f.fork()); |
876 |
try { |
877 |
f.join(); |
878 |
shouldThrow(); |
879 |
} catch (CancellationException success) { |
880 |
checkCancelled(f); |
881 |
} |
882 |
}}; |
883 |
testInvokeOnPool(mainPool(), a); |
884 |
} |
885 |
|
886 |
/** |
887 |
* get of a forked task throws exception when task cancelled |
888 |
*/ |
889 |
public void testCancelledForkGet() { |
890 |
ForkJoinTask a = new CheckedRecursiveAction() { |
891 |
protected void realCompute() throws Exception { |
892 |
CCF f = new LCCF(8); |
893 |
assertTrue(f.cancel(true)); |
894 |
assertSame(f, f.fork()); |
895 |
try { |
896 |
f.get(); |
897 |
shouldThrow(); |
898 |
} catch (CancellationException success) { |
899 |
checkCancelled(f); |
900 |
} |
901 |
}}; |
902 |
testInvokeOnPool(mainPool(), a); |
903 |
} |
904 |
|
905 |
/** |
906 |
* timed get of a forked task throws exception when task cancelled |
907 |
*/ |
908 |
public void testCancelledForkTimedGet() throws Exception { |
909 |
ForkJoinTask a = new CheckedRecursiveAction() { |
910 |
protected void realCompute() throws Exception { |
911 |
CCF f = new LCCF(8); |
912 |
assertTrue(f.cancel(true)); |
913 |
assertSame(f, f.fork()); |
914 |
try { |
915 |
f.get(LONG_DELAY_MS, MILLISECONDS); |
916 |
shouldThrow(); |
917 |
} catch (CancellationException success) { |
918 |
checkCancelled(f); |
919 |
} |
920 |
}}; |
921 |
testInvokeOnPool(mainPool(), a); |
922 |
} |
923 |
|
924 |
/** |
925 |
* quietlyJoin of a forked task returns when task cancelled |
926 |
*/ |
927 |
public void testCancelledForkQuietlyJoin() { |
928 |
ForkJoinTask a = new CheckedRecursiveAction() { |
929 |
protected void realCompute() { |
930 |
CCF f = new LCCF(8); |
931 |
assertTrue(f.cancel(true)); |
932 |
assertSame(f, f.fork()); |
933 |
f.quietlyJoin(); |
934 |
checkCancelled(f); |
935 |
}}; |
936 |
testInvokeOnPool(mainPool(), a); |
937 |
} |
938 |
|
939 |
/** |
940 |
* getPool of executing task returns its pool |
941 |
*/ |
942 |
public void testGetPool() { |
943 |
final ForkJoinPool mainPool = mainPool(); |
944 |
ForkJoinTask a = new CheckedRecursiveAction() { |
945 |
protected void realCompute() { |
946 |
assertSame(mainPool, getPool()); |
947 |
}}; |
948 |
testInvokeOnPool(mainPool, a); |
949 |
} |
950 |
|
951 |
/** |
952 |
* getPool of non-FJ task returns null |
953 |
*/ |
954 |
public void testGetPool2() { |
955 |
ForkJoinTask a = new CheckedRecursiveAction() { |
956 |
protected void realCompute() { |
957 |
assertNull(getPool()); |
958 |
}}; |
959 |
assertNull(a.invoke()); |
960 |
} |
961 |
|
962 |
/** |
963 |
* inForkJoinPool of executing task returns true |
964 |
*/ |
965 |
public void testInForkJoinPool() { |
966 |
ForkJoinTask a = new CheckedRecursiveAction() { |
967 |
protected void realCompute() { |
968 |
assertTrue(inForkJoinPool()); |
969 |
}}; |
970 |
testInvokeOnPool(mainPool(), a); |
971 |
} |
972 |
|
973 |
/** |
974 |
* inForkJoinPool of non-FJ task returns false |
975 |
*/ |
976 |
public void testInForkJoinPool2() { |
977 |
ForkJoinTask a = new CheckedRecursiveAction() { |
978 |
protected void realCompute() { |
979 |
assertFalse(inForkJoinPool()); |
980 |
}}; |
981 |
assertNull(a.invoke()); |
982 |
} |
983 |
|
984 |
/** |
985 |
* setRawResult(null) succeeds |
986 |
*/ |
987 |
public void testSetRawResult() { |
988 |
ForkJoinTask a = new CheckedRecursiveAction() { |
989 |
protected void realCompute() { |
990 |
setRawResult(null); |
991 |
assertNull(getRawResult()); |
992 |
}}; |
993 |
assertNull(a.invoke()); |
994 |
} |
995 |
|
996 |
/** |
997 |
* invoke task throws exception after invoking completeExceptionally |
998 |
*/ |
999 |
public void testCompleteExceptionally2() { |
1000 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1001 |
protected void realCompute() { |
1002 |
CCF n = new LCCF(8); |
1003 |
CCF f = new LCCF(n, 8); |
1004 |
FJException ex = new FJException(); |
1005 |
f.completeExceptionally(ex); |
1006 |
f.checkCompletedExceptionally(ex); |
1007 |
n.checkCompletedExceptionally(ex); |
1008 |
}}; |
1009 |
testInvokeOnPool(mainPool(), a); |
1010 |
} |
1011 |
|
1012 |
/** |
1013 |
* invokeAll(t1, t2) invokes all task arguments |
1014 |
*/ |
1015 |
public void testInvokeAll2() { |
1016 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1017 |
protected void realCompute() { |
1018 |
CCF f = new LCCF(8); |
1019 |
CCF g = new LCCF(9); |
1020 |
invokeAll(f, g); |
1021 |
assertEquals(21, f.number); |
1022 |
assertEquals(34, g.number); |
1023 |
checkCompletedNormally(f); |
1024 |
checkCompletedNormally(g); |
1025 |
}}; |
1026 |
testInvokeOnPool(mainPool(), a); |
1027 |
} |
1028 |
|
1029 |
/** |
1030 |
* invokeAll(tasks) with 1 argument invokes task |
1031 |
*/ |
1032 |
public void testInvokeAll1() { |
1033 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1034 |
protected void realCompute() { |
1035 |
CCF f = new LCCF(8); |
1036 |
invokeAll(f); |
1037 |
checkCompletedNormally(f); |
1038 |
assertEquals(21, f.number); |
1039 |
}}; |
1040 |
testInvokeOnPool(mainPool(), a); |
1041 |
} |
1042 |
|
1043 |
/** |
1044 |
* invokeAll(tasks) with > 2 argument invokes tasks |
1045 |
*/ |
1046 |
public void testInvokeAll3() { |
1047 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1048 |
protected void realCompute() { |
1049 |
CCF f = new LCCF(8); |
1050 |
CCF g = new LCCF(9); |
1051 |
CCF h = new LCCF(7); |
1052 |
invokeAll(f, g, h); |
1053 |
assertEquals(21, f.number); |
1054 |
assertEquals(34, g.number); |
1055 |
assertEquals(13, h.number); |
1056 |
checkCompletedNormally(f); |
1057 |
checkCompletedNormally(g); |
1058 |
checkCompletedNormally(h); |
1059 |
}}; |
1060 |
testInvokeOnPool(mainPool(), a); |
1061 |
} |
1062 |
|
1063 |
/** |
1064 |
* invokeAll(collection) invokes all tasks in the collection |
1065 |
*/ |
1066 |
public void testInvokeAllCollection() { |
1067 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1068 |
protected void realCompute() { |
1069 |
CCF f = new LCCF(8); |
1070 |
CCF g = new LCCF(9); |
1071 |
CCF h = new LCCF(7); |
1072 |
HashSet set = new HashSet(); |
1073 |
set.add(f); |
1074 |
set.add(g); |
1075 |
set.add(h); |
1076 |
invokeAll(set); |
1077 |
assertEquals(21, f.number); |
1078 |
assertEquals(34, g.number); |
1079 |
assertEquals(13, h.number); |
1080 |
checkCompletedNormally(f); |
1081 |
checkCompletedNormally(g); |
1082 |
checkCompletedNormally(h); |
1083 |
}}; |
1084 |
testInvokeOnPool(mainPool(), a); |
1085 |
} |
1086 |
|
1087 |
/** |
1088 |
* invokeAll(tasks) with any null task throws NPE |
1089 |
*/ |
1090 |
public void testInvokeAllNPE() { |
1091 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1092 |
protected void realCompute() { |
1093 |
CCF f = new LCCF(8); |
1094 |
CCF g = new LCCF(9); |
1095 |
CCF h = null; |
1096 |
try { |
1097 |
invokeAll(f, g, h); |
1098 |
shouldThrow(); |
1099 |
} catch (NullPointerException success) {} |
1100 |
}}; |
1101 |
testInvokeOnPool(mainPool(), a); |
1102 |
} |
1103 |
|
1104 |
/** |
1105 |
* invokeAll(t1, t2) throw exception if any task does |
1106 |
*/ |
1107 |
public void testAbnormalInvokeAll2() { |
1108 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1109 |
protected void realCompute() { |
1110 |
CCF f = new LCCF(8); |
1111 |
FailingCCF g = new LFCCF(9); |
1112 |
try { |
1113 |
invokeAll(f, g); |
1114 |
shouldThrow(); |
1115 |
} catch (FJException success) { |
1116 |
checkCompletedAbnormally(g, success); |
1117 |
} |
1118 |
}}; |
1119 |
testInvokeOnPool(mainPool(), a); |
1120 |
} |
1121 |
|
1122 |
/** |
1123 |
* invokeAll(tasks) with 1 argument throws exception if task does |
1124 |
*/ |
1125 |
public void testAbnormalInvokeAll1() { |
1126 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1127 |
protected void realCompute() { |
1128 |
FailingCCF g = new LFCCF(9); |
1129 |
try { |
1130 |
invokeAll(g); |
1131 |
shouldThrow(); |
1132 |
} catch (FJException success) { |
1133 |
checkCompletedAbnormally(g, success); |
1134 |
} |
1135 |
}}; |
1136 |
testInvokeOnPool(mainPool(), a); |
1137 |
} |
1138 |
|
1139 |
/** |
1140 |
* invokeAll(tasks) with > 2 argument throws exception if any task does |
1141 |
*/ |
1142 |
public void testAbnormalInvokeAll3() { |
1143 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1144 |
protected void realCompute() { |
1145 |
CCF f = new LCCF(8); |
1146 |
FailingCCF g = new LFCCF(9); |
1147 |
CCF h = new LCCF(7); |
1148 |
try { |
1149 |
invokeAll(f, g, h); |
1150 |
shouldThrow(); |
1151 |
} catch (FJException success) { |
1152 |
checkCompletedAbnormally(g, success); |
1153 |
} |
1154 |
}}; |
1155 |
testInvokeOnPool(mainPool(), a); |
1156 |
} |
1157 |
|
1158 |
/** |
1159 |
* invokeAll(collection) throws exception if any task does |
1160 |
*/ |
1161 |
public void testAbnormalInvokeAllCollection() { |
1162 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1163 |
protected void realCompute() { |
1164 |
FailingCCF f = new LFCCF(8); |
1165 |
CCF g = new LCCF(9); |
1166 |
CCF h = new LCCF(7); |
1167 |
HashSet set = new HashSet(); |
1168 |
set.add(f); |
1169 |
set.add(g); |
1170 |
set.add(h); |
1171 |
try { |
1172 |
invokeAll(set); |
1173 |
shouldThrow(); |
1174 |
} catch (FJException success) { |
1175 |
checkCompletedAbnormally(f, success); |
1176 |
} |
1177 |
}}; |
1178 |
testInvokeOnPool(mainPool(), a); |
1179 |
} |
1180 |
|
1181 |
/** |
1182 |
* tryUnfork returns true for most recent unexecuted task, |
1183 |
* and suppresses execution |
1184 |
*/ |
1185 |
public void testTryUnfork() { |
1186 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1187 |
protected void realCompute() { |
1188 |
CCF g = new LCCF(9); |
1189 |
assertSame(g, g.fork()); |
1190 |
CCF f = new LCCF(8); |
1191 |
assertSame(f, f.fork()); |
1192 |
assertTrue(f.tryUnfork()); |
1193 |
helpQuiesce(); |
1194 |
checkNotDone(f); |
1195 |
checkCompletedNormally(g); |
1196 |
}}; |
1197 |
testInvokeOnPool(singletonPool(), a); |
1198 |
} |
1199 |
|
1200 |
/** |
1201 |
* getSurplusQueuedTaskCount returns > 0 when |
1202 |
* there are more tasks than threads |
1203 |
*/ |
1204 |
public void testGetSurplusQueuedTaskCount() { |
1205 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1206 |
protected void realCompute() { |
1207 |
CCF h = new LCCF(7); |
1208 |
assertSame(h, h.fork()); |
1209 |
CCF g = new LCCF(9); |
1210 |
assertSame(g, g.fork()); |
1211 |
CCF f = new LCCF(8); |
1212 |
assertSame(f, f.fork()); |
1213 |
assertTrue(getSurplusQueuedTaskCount() > 0); |
1214 |
helpQuiesce(); |
1215 |
assertEquals(0, getSurplusQueuedTaskCount()); |
1216 |
checkCompletedNormally(f); |
1217 |
checkCompletedNormally(g); |
1218 |
checkCompletedNormally(h); |
1219 |
}}; |
1220 |
testInvokeOnPool(singletonPool(), a); |
1221 |
} |
1222 |
|
1223 |
/** |
1224 |
* peekNextLocalTask returns most recent unexecuted task. |
1225 |
*/ |
1226 |
public void testPeekNextLocalTask() { |
1227 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1228 |
protected void realCompute() { |
1229 |
CCF g = new LCCF(9); |
1230 |
assertSame(g, g.fork()); |
1231 |
CCF f = new LCCF(8); |
1232 |
assertSame(f, f.fork()); |
1233 |
assertSame(f, peekNextLocalTask()); |
1234 |
assertNull(f.join()); |
1235 |
checkCompletedNormally(f); |
1236 |
helpQuiesce(); |
1237 |
checkCompletedNormally(g); |
1238 |
}}; |
1239 |
testInvokeOnPool(singletonPool(), a); |
1240 |
} |
1241 |
|
1242 |
/** |
1243 |
* pollNextLocalTask returns most recent unexecuted task without |
1244 |
* executing it |
1245 |
*/ |
1246 |
public void testPollNextLocalTask() { |
1247 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1248 |
protected void realCompute() { |
1249 |
CCF g = new LCCF(9); |
1250 |
assertSame(g, g.fork()); |
1251 |
CCF f = new LCCF(8); |
1252 |
assertSame(f, f.fork()); |
1253 |
assertSame(f, pollNextLocalTask()); |
1254 |
helpQuiesce(); |
1255 |
checkNotDone(f); |
1256 |
assertEquals(34, g.number); |
1257 |
checkCompletedNormally(g); |
1258 |
}}; |
1259 |
testInvokeOnPool(singletonPool(), a); |
1260 |
} |
1261 |
|
1262 |
/** |
1263 |
* pollTask returns an unexecuted task without executing it |
1264 |
*/ |
1265 |
public void testPollTask() { |
1266 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1267 |
protected void realCompute() { |
1268 |
CCF g = new LCCF(9); |
1269 |
assertSame(g, g.fork()); |
1270 |
CCF f = new LCCF(8); |
1271 |
assertSame(f, f.fork()); |
1272 |
assertSame(f, pollTask()); |
1273 |
helpQuiesce(); |
1274 |
checkNotDone(f); |
1275 |
checkCompletedNormally(g); |
1276 |
}}; |
1277 |
testInvokeOnPool(singletonPool(), a); |
1278 |
} |
1279 |
|
1280 |
/** |
1281 |
* peekNextLocalTask returns least recent unexecuted task in async mode |
1282 |
*/ |
1283 |
public void testPeekNextLocalTaskAsync() { |
1284 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1285 |
protected void realCompute() { |
1286 |
CCF g = new LCCF(9); |
1287 |
assertSame(g, g.fork()); |
1288 |
CCF f = new LCCF(8); |
1289 |
assertSame(f, f.fork()); |
1290 |
assertSame(g, peekNextLocalTask()); |
1291 |
assertNull(f.join()); |
1292 |
helpQuiesce(); |
1293 |
checkCompletedNormally(f); |
1294 |
assertEquals(34, g.number); |
1295 |
checkCompletedNormally(g); |
1296 |
}}; |
1297 |
testInvokeOnPool(asyncSingletonPool(), a); |
1298 |
} |
1299 |
|
1300 |
/** |
1301 |
* pollNextLocalTask returns least recent unexecuted task without |
1302 |
* executing it, in async mode |
1303 |
*/ |
1304 |
public void testPollNextLocalTaskAsync() { |
1305 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1306 |
protected void realCompute() { |
1307 |
CCF g = new LCCF(9); |
1308 |
assertSame(g, g.fork()); |
1309 |
CCF f = new LCCF(8); |
1310 |
assertSame(f, f.fork()); |
1311 |
assertSame(g, pollNextLocalTask()); |
1312 |
helpQuiesce(); |
1313 |
assertEquals(21, f.number); |
1314 |
checkCompletedNormally(f); |
1315 |
checkNotDone(g); |
1316 |
}}; |
1317 |
testInvokeOnPool(asyncSingletonPool(), a); |
1318 |
} |
1319 |
|
1320 |
/** |
1321 |
* pollTask returns an unexecuted task without executing it, in |
1322 |
* async mode |
1323 |
*/ |
1324 |
public void testPollTaskAsync() { |
1325 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1326 |
protected void realCompute() { |
1327 |
CCF g = new LCCF(9); |
1328 |
assertSame(g, g.fork()); |
1329 |
CCF f = new LCCF(8); |
1330 |
assertSame(f, f.fork()); |
1331 |
assertSame(g, pollTask()); |
1332 |
helpQuiesce(); |
1333 |
assertEquals(21, f.number); |
1334 |
checkCompletedNormally(f); |
1335 |
checkNotDone(g); |
1336 |
}}; |
1337 |
testInvokeOnPool(asyncSingletonPool(), a); |
1338 |
} |
1339 |
|
1340 |
// versions for singleton pools |
1341 |
|
1342 |
/** |
1343 |
* invoke returns when task completes normally. |
1344 |
* isCompletedAbnormally and isCancelled return false for normally |
1345 |
* completed tasks; getRawResult returns null. |
1346 |
*/ |
1347 |
public void testInvokeSingleton() { |
1348 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1349 |
protected void realCompute() { |
1350 |
CCF f = new LCCF(8); |
1351 |
assertNull(f.invoke()); |
1352 |
assertEquals(21, f.number); |
1353 |
checkCompletedNormally(f); |
1354 |
}}; |
1355 |
testInvokeOnPool(singletonPool(), a); |
1356 |
} |
1357 |
|
1358 |
/** |
1359 |
* quietlyInvoke task returns when task completes normally. |
1360 |
* isCompletedAbnormally and isCancelled return false for normally |
1361 |
* completed tasks |
1362 |
*/ |
1363 |
public void testQuietlyInvokeSingleton() { |
1364 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1365 |
protected void realCompute() { |
1366 |
CCF f = new LCCF(8); |
1367 |
f.quietlyInvoke(); |
1368 |
assertEquals(21, f.number); |
1369 |
checkCompletedNormally(f); |
1370 |
}}; |
1371 |
testInvokeOnPool(singletonPool(), a); |
1372 |
} |
1373 |
|
1374 |
/** |
1375 |
* join of a forked task returns when task completes |
1376 |
*/ |
1377 |
public void testForkJoinSingleton() { |
1378 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1379 |
protected void realCompute() { |
1380 |
CCF f = new LCCF(8); |
1381 |
assertSame(f, f.fork()); |
1382 |
assertNull(f.join()); |
1383 |
assertEquals(21, f.number); |
1384 |
checkCompletedNormally(f); |
1385 |
}}; |
1386 |
testInvokeOnPool(singletonPool(), a); |
1387 |
} |
1388 |
|
1389 |
/** |
1390 |
* get of a forked task returns when task completes |
1391 |
*/ |
1392 |
public void testForkGetSingleton() { |
1393 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1394 |
protected void realCompute() throws Exception { |
1395 |
CCF f = new LCCF(8); |
1396 |
assertSame(f, f.fork()); |
1397 |
assertNull(f.get()); |
1398 |
assertEquals(21, f.number); |
1399 |
checkCompletedNormally(f); |
1400 |
}}; |
1401 |
testInvokeOnPool(singletonPool(), a); |
1402 |
} |
1403 |
|
1404 |
/** |
1405 |
* timed get of a forked task returns when task completes |
1406 |
*/ |
1407 |
public void testForkTimedGetSingleton() { |
1408 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1409 |
protected void realCompute() throws Exception { |
1410 |
CCF f = new LCCF(8); |
1411 |
assertSame(f, f.fork()); |
1412 |
assertNull(f.get(LONG_DELAY_MS, MILLISECONDS)); |
1413 |
assertEquals(21, f.number); |
1414 |
checkCompletedNormally(f); |
1415 |
}}; |
1416 |
testInvokeOnPool(singletonPool(), a); |
1417 |
} |
1418 |
|
1419 |
/** |
1420 |
* timed get with null time unit throws NPE |
1421 |
*/ |
1422 |
public void testForkTimedGetNPESingleton() { |
1423 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1424 |
protected void realCompute() throws Exception { |
1425 |
CCF f = new LCCF(8); |
1426 |
assertSame(f, f.fork()); |
1427 |
try { |
1428 |
f.get(5L, null); |
1429 |
shouldThrow(); |
1430 |
} catch (NullPointerException success) {} |
1431 |
}}; |
1432 |
testInvokeOnPool(singletonPool(), a); |
1433 |
} |
1434 |
|
1435 |
/** |
1436 |
* quietlyJoin of a forked task returns when task completes |
1437 |
*/ |
1438 |
public void testForkQuietlyJoinSingleton() { |
1439 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1440 |
protected void realCompute() { |
1441 |
CCF f = new LCCF(8); |
1442 |
assertSame(f, f.fork()); |
1443 |
f.quietlyJoin(); |
1444 |
assertEquals(21, f.number); |
1445 |
checkCompletedNormally(f); |
1446 |
}}; |
1447 |
testInvokeOnPool(singletonPool(), a); |
1448 |
} |
1449 |
|
1450 |
/** |
1451 |
* helpQuiesce returns when tasks are complete. |
1452 |
* getQueuedTaskCount returns 0 when quiescent |
1453 |
*/ |
1454 |
public void testForkHelpQuiesceSingleton() { |
1455 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1456 |
protected void realCompute() { |
1457 |
CCF f = new LCCF(8); |
1458 |
assertSame(f, f.fork()); |
1459 |
helpQuiesce(); |
1460 |
assertEquals(0, getQueuedTaskCount()); |
1461 |
assertEquals(21, f.number); |
1462 |
checkCompletedNormally(f); |
1463 |
}}; |
1464 |
testInvokeOnPool(singletonPool(), a); |
1465 |
} |
1466 |
|
1467 |
/** |
1468 |
* invoke task throws exception when task completes abnormally |
1469 |
*/ |
1470 |
public void testAbnormalInvokeSingleton() { |
1471 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1472 |
protected void realCompute() { |
1473 |
FailingCCF f = new LFCCF(8); |
1474 |
try { |
1475 |
f.invoke(); |
1476 |
shouldThrow(); |
1477 |
} catch (FJException success) { |
1478 |
checkCompletedAbnormally(f, success); |
1479 |
} |
1480 |
}}; |
1481 |
testInvokeOnPool(singletonPool(), a); |
1482 |
} |
1483 |
|
1484 |
/** |
1485 |
* quietlyInvoke task returns when task completes abnormally |
1486 |
*/ |
1487 |
public void testAbnormalQuietlyInvokeSingleton() { |
1488 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1489 |
protected void realCompute() { |
1490 |
FailingCCF f = new LFCCF(8); |
1491 |
f.quietlyInvoke(); |
1492 |
assertTrue(f.getException() instanceof FJException); |
1493 |
checkCompletedAbnormally(f, f.getException()); |
1494 |
}}; |
1495 |
testInvokeOnPool(singletonPool(), a); |
1496 |
} |
1497 |
|
1498 |
/** |
1499 |
* join of a forked task throws exception when task completes abnormally |
1500 |
*/ |
1501 |
public void testAbnormalForkJoinSingleton() { |
1502 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1503 |
protected void realCompute() { |
1504 |
FailingCCF f = new LFCCF(8); |
1505 |
assertSame(f, f.fork()); |
1506 |
try { |
1507 |
f.join(); |
1508 |
shouldThrow(); |
1509 |
} catch (FJException success) { |
1510 |
checkCompletedAbnormally(f, success); |
1511 |
} |
1512 |
}}; |
1513 |
testInvokeOnPool(singletonPool(), a); |
1514 |
} |
1515 |
|
1516 |
/** |
1517 |
* get of a forked task throws exception when task completes abnormally |
1518 |
*/ |
1519 |
public void testAbnormalForkGetSingleton() { |
1520 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1521 |
protected void realCompute() throws Exception { |
1522 |
FailingCCF f = new LFCCF(8); |
1523 |
assertSame(f, f.fork()); |
1524 |
try { |
1525 |
f.get(); |
1526 |
shouldThrow(); |
1527 |
} catch (ExecutionException success) { |
1528 |
Throwable cause = success.getCause(); |
1529 |
assertTrue(cause instanceof FJException); |
1530 |
checkCompletedAbnormally(f, cause); |
1531 |
} |
1532 |
}}; |
1533 |
testInvokeOnPool(singletonPool(), a); |
1534 |
} |
1535 |
|
1536 |
/** |
1537 |
* timed get of a forked task throws exception when task completes abnormally |
1538 |
*/ |
1539 |
public void testAbnormalForkTimedGetSingleton() { |
1540 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1541 |
protected void realCompute() throws Exception { |
1542 |
FailingCCF f = new LFCCF(8); |
1543 |
assertSame(f, f.fork()); |
1544 |
try { |
1545 |
f.get(LONG_DELAY_MS, MILLISECONDS); |
1546 |
shouldThrow(); |
1547 |
} catch (ExecutionException success) { |
1548 |
Throwable cause = success.getCause(); |
1549 |
assertTrue(cause instanceof FJException); |
1550 |
checkCompletedAbnormally(f, cause); |
1551 |
} |
1552 |
}}; |
1553 |
testInvokeOnPool(singletonPool(), a); |
1554 |
} |
1555 |
|
1556 |
/** |
1557 |
* quietlyJoin of a forked task returns when task completes abnormally |
1558 |
*/ |
1559 |
public void testAbnormalForkQuietlyJoinSingleton() { |
1560 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1561 |
protected void realCompute() { |
1562 |
FailingCCF f = new LFCCF(8); |
1563 |
assertSame(f, f.fork()); |
1564 |
f.quietlyJoin(); |
1565 |
assertTrue(f.getException() instanceof FJException); |
1566 |
checkCompletedAbnormally(f, f.getException()); |
1567 |
}}; |
1568 |
testInvokeOnPool(singletonPool(), a); |
1569 |
} |
1570 |
|
1571 |
/** |
1572 |
* invoke task throws exception when task cancelled |
1573 |
*/ |
1574 |
public void testCancelledInvokeSingleton() { |
1575 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1576 |
protected void realCompute() { |
1577 |
CCF f = new LCCF(8); |
1578 |
assertTrue(f.cancel(true)); |
1579 |
try { |
1580 |
f.invoke(); |
1581 |
shouldThrow(); |
1582 |
} catch (CancellationException success) { |
1583 |
checkCancelled(f); |
1584 |
} |
1585 |
}}; |
1586 |
testInvokeOnPool(singletonPool(), a); |
1587 |
} |
1588 |
|
1589 |
/** |
1590 |
* join of a forked task throws exception when task cancelled |
1591 |
*/ |
1592 |
public void testCancelledForkJoinSingleton() { |
1593 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1594 |
protected void realCompute() { |
1595 |
CCF f = new LCCF(8); |
1596 |
assertTrue(f.cancel(true)); |
1597 |
assertSame(f, f.fork()); |
1598 |
try { |
1599 |
f.join(); |
1600 |
shouldThrow(); |
1601 |
} catch (CancellationException success) { |
1602 |
checkCancelled(f); |
1603 |
} |
1604 |
}}; |
1605 |
testInvokeOnPool(singletonPool(), a); |
1606 |
} |
1607 |
|
1608 |
/** |
1609 |
* get of a forked task throws exception when task cancelled |
1610 |
*/ |
1611 |
public void testCancelledForkGetSingleton() { |
1612 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1613 |
protected void realCompute() throws Exception { |
1614 |
CCF f = new LCCF(8); |
1615 |
assertTrue(f.cancel(true)); |
1616 |
assertSame(f, f.fork()); |
1617 |
try { |
1618 |
f.get(); |
1619 |
shouldThrow(); |
1620 |
} catch (CancellationException success) { |
1621 |
checkCancelled(f); |
1622 |
} |
1623 |
}}; |
1624 |
testInvokeOnPool(singletonPool(), a); |
1625 |
} |
1626 |
|
1627 |
/** |
1628 |
* timed get of a forked task throws exception when task cancelled |
1629 |
*/ |
1630 |
public void testCancelledForkTimedGetSingleton() throws Exception { |
1631 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1632 |
protected void realCompute() throws Exception { |
1633 |
CCF f = new LCCF(8); |
1634 |
assertTrue(f.cancel(true)); |
1635 |
assertSame(f, f.fork()); |
1636 |
try { |
1637 |
f.get(LONG_DELAY_MS, MILLISECONDS); |
1638 |
shouldThrow(); |
1639 |
} catch (CancellationException success) { |
1640 |
checkCancelled(f); |
1641 |
} |
1642 |
}}; |
1643 |
testInvokeOnPool(singletonPool(), a); |
1644 |
} |
1645 |
|
1646 |
/** |
1647 |
* quietlyJoin of a forked task returns when task cancelled |
1648 |
*/ |
1649 |
public void testCancelledForkQuietlyJoinSingleton() { |
1650 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1651 |
protected void realCompute() { |
1652 |
CCF f = new LCCF(8); |
1653 |
assertTrue(f.cancel(true)); |
1654 |
assertSame(f, f.fork()); |
1655 |
f.quietlyJoin(); |
1656 |
checkCancelled(f); |
1657 |
}}; |
1658 |
testInvokeOnPool(singletonPool(), a); |
1659 |
} |
1660 |
|
1661 |
/** |
1662 |
* invoke task throws exception after invoking completeExceptionally |
1663 |
*/ |
1664 |
public void testCompleteExceptionallySingleton() { |
1665 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1666 |
protected void realCompute() { |
1667 |
CCF n = new LCCF(8); |
1668 |
CCF f = new LCCF(n, 8); |
1669 |
FJException ex = new FJException(); |
1670 |
f.completeExceptionally(ex); |
1671 |
f.checkCompletedExceptionally(ex); |
1672 |
n.checkCompletedExceptionally(ex); |
1673 |
}}; |
1674 |
testInvokeOnPool(singletonPool(), a); |
1675 |
} |
1676 |
|
1677 |
/** |
1678 |
* invokeAll(t1, t2) invokes all task arguments |
1679 |
*/ |
1680 |
public void testInvokeAll2Singleton() { |
1681 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1682 |
protected void realCompute() { |
1683 |
CCF f = new LCCF(8); |
1684 |
CCF g = new LCCF(9); |
1685 |
invokeAll(f, g); |
1686 |
assertEquals(21, f.number); |
1687 |
assertEquals(34, g.number); |
1688 |
checkCompletedNormally(f); |
1689 |
checkCompletedNormally(g); |
1690 |
}}; |
1691 |
testInvokeOnPool(singletonPool(), a); |
1692 |
} |
1693 |
|
1694 |
/** |
1695 |
* invokeAll(tasks) with 1 argument invokes task |
1696 |
*/ |
1697 |
public void testInvokeAll1Singleton() { |
1698 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1699 |
protected void realCompute() { |
1700 |
CCF f = new LCCF(8); |
1701 |
invokeAll(f); |
1702 |
checkCompletedNormally(f); |
1703 |
assertEquals(21, f.number); |
1704 |
}}; |
1705 |
testInvokeOnPool(singletonPool(), a); |
1706 |
} |
1707 |
|
1708 |
/** |
1709 |
* invokeAll(tasks) with > 2 argument invokes tasks |
1710 |
*/ |
1711 |
public void testInvokeAll3Singleton() { |
1712 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1713 |
protected void realCompute() { |
1714 |
CCF f = new LCCF(8); |
1715 |
CCF g = new LCCF(9); |
1716 |
CCF h = new LCCF(7); |
1717 |
invokeAll(f, g, h); |
1718 |
assertEquals(21, f.number); |
1719 |
assertEquals(34, g.number); |
1720 |
assertEquals(13, h.number); |
1721 |
checkCompletedNormally(f); |
1722 |
checkCompletedNormally(g); |
1723 |
checkCompletedNormally(h); |
1724 |
}}; |
1725 |
testInvokeOnPool(singletonPool(), a); |
1726 |
} |
1727 |
|
1728 |
/** |
1729 |
* invokeAll(collection) invokes all tasks in the collection |
1730 |
*/ |
1731 |
public void testInvokeAllCollectionSingleton() { |
1732 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1733 |
protected void realCompute() { |
1734 |
CCF f = new LCCF(8); |
1735 |
CCF g = new LCCF(9); |
1736 |
CCF h = new LCCF(7); |
1737 |
HashSet set = new HashSet(); |
1738 |
set.add(f); |
1739 |
set.add(g); |
1740 |
set.add(h); |
1741 |
invokeAll(set); |
1742 |
assertEquals(21, f.number); |
1743 |
assertEquals(34, g.number); |
1744 |
assertEquals(13, h.number); |
1745 |
checkCompletedNormally(f); |
1746 |
checkCompletedNormally(g); |
1747 |
checkCompletedNormally(h); |
1748 |
}}; |
1749 |
testInvokeOnPool(singletonPool(), a); |
1750 |
} |
1751 |
|
1752 |
/** |
1753 |
* invokeAll(tasks) with any null task throws NPE |
1754 |
*/ |
1755 |
public void testInvokeAllNPESingleton() { |
1756 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1757 |
protected void realCompute() { |
1758 |
CCF f = new LCCF(8); |
1759 |
CCF g = new LCCF(9); |
1760 |
CCF h = null; |
1761 |
try { |
1762 |
invokeAll(f, g, h); |
1763 |
shouldThrow(); |
1764 |
} catch (NullPointerException success) {} |
1765 |
}}; |
1766 |
testInvokeOnPool(singletonPool(), a); |
1767 |
} |
1768 |
|
1769 |
/** |
1770 |
* invokeAll(t1, t2) throw exception if any task does |
1771 |
*/ |
1772 |
public void testAbnormalInvokeAll2Singleton() { |
1773 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1774 |
protected void realCompute() { |
1775 |
CCF f = new LCCF(8); |
1776 |
FailingCCF g = new LFCCF(9); |
1777 |
try { |
1778 |
invokeAll(f, g); |
1779 |
shouldThrow(); |
1780 |
} catch (FJException success) { |
1781 |
checkCompletedAbnormally(g, success); |
1782 |
} |
1783 |
}}; |
1784 |
testInvokeOnPool(singletonPool(), a); |
1785 |
} |
1786 |
|
1787 |
/** |
1788 |
* invokeAll(tasks) with 1 argument throws exception if task does |
1789 |
*/ |
1790 |
public void testAbnormalInvokeAll1Singleton() { |
1791 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1792 |
protected void realCompute() { |
1793 |
FailingCCF g = new LFCCF(9); |
1794 |
try { |
1795 |
invokeAll(g); |
1796 |
shouldThrow(); |
1797 |
} catch (FJException success) { |
1798 |
checkCompletedAbnormally(g, success); |
1799 |
} |
1800 |
}}; |
1801 |
testInvokeOnPool(singletonPool(), a); |
1802 |
} |
1803 |
|
1804 |
/** |
1805 |
* invokeAll(tasks) with > 2 argument throws exception if any task does |
1806 |
*/ |
1807 |
public void testAbnormalInvokeAll3Singleton() { |
1808 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1809 |
protected void realCompute() { |
1810 |
CCF f = new LCCF(8); |
1811 |
FailingCCF g = new LFCCF(9); |
1812 |
CCF h = new LCCF(7); |
1813 |
try { |
1814 |
invokeAll(f, g, h); |
1815 |
shouldThrow(); |
1816 |
} catch (FJException success) { |
1817 |
checkCompletedAbnormally(g, success); |
1818 |
} |
1819 |
}}; |
1820 |
testInvokeOnPool(singletonPool(), a); |
1821 |
} |
1822 |
|
1823 |
/** |
1824 |
* invokeAll(collection) throws exception if any task does |
1825 |
*/ |
1826 |
public void testAbnormalInvokeAllCollectionSingleton() { |
1827 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1828 |
protected void realCompute() { |
1829 |
FailingCCF f = new LFCCF(8); |
1830 |
CCF g = new LCCF(9); |
1831 |
CCF h = new LCCF(7); |
1832 |
HashSet set = new HashSet(); |
1833 |
set.add(f); |
1834 |
set.add(g); |
1835 |
set.add(h); |
1836 |
try { |
1837 |
invokeAll(set); |
1838 |
shouldThrow(); |
1839 |
} catch (FJException success) { |
1840 |
checkCompletedAbnormally(f, success); |
1841 |
} |
1842 |
}}; |
1843 |
testInvokeOnPool(singletonPool(), a); |
1844 |
} |
1845 |
|
1846 |
} |