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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/licenses/publicdomain |
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*/ |
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|
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import junit.framework.*; |
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import java.util.concurrent.CancellationException; |
9 |
import java.util.concurrent.ExecutionException; |
10 |
import java.util.concurrent.ForkJoinPool; |
11 |
import java.util.concurrent.ForkJoinWorkerThread; |
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import java.util.concurrent.RecursiveAction; |
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import java.util.concurrent.TimeUnit; |
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import java.util.HashSet; |
15 |
|
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public class RecursiveActionTest extends JSR166TestCase { |
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|
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public static void main(String[] args) { |
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junit.textui.TestRunner.run(suite()); |
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} |
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|
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public static Test suite() { |
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return new TestSuite(RecursiveActionTest.class); |
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} |
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|
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private static ForkJoinPool mainPool() { |
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return new ForkJoinPool(); |
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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, RecursiveAction a) { |
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try { |
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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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|
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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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} finally { |
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joinPool(pool); |
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} |
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} |
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|
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static final class FJException extends RuntimeException { |
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FJException() { super(); } |
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} |
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|
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// A simple recursive action for testing |
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final class FibAction extends CheckedRecursiveAction { |
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final int number; |
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int result; |
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FibAction(int n) { number = n; } |
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public void realCompute() { |
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int n = number; |
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if (n <= 1) |
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result = n; |
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else { |
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FibAction f1 = new FibAction(n - 1); |
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FibAction f2 = new FibAction(n - 2); |
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invokeAll(f1, f2); |
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result = f1.result + f2.result; |
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} |
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} |
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} |
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|
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// A recursive action failing in base case |
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static final class FailingFibAction extends RecursiveAction { |
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final int number; |
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int result; |
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FailingFibAction(int n) { number = n; } |
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public void compute() { |
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int n = number; |
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if (n <= 1) |
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throw new FJException(); |
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else { |
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FailingFibAction f1 = new FailingFibAction(n - 1); |
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FailingFibAction f2 = new FailingFibAction(n - 2); |
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invokeAll(f1, f2); |
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result = f1.result + f2.result; |
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} |
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} |
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} |
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|
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/** |
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* invoke returns when task completes normally. |
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* isCompletedAbnormally and isCancelled return false for normally |
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* completed tasks. getRawResult of a RecursiveAction returns null; |
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*/ |
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public void testInvoke() { |
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RecursiveAction a = new CheckedRecursiveAction() { |
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public void realCompute() { |
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FibAction f = new FibAction(8); |
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assertNull(f.invoke()); |
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assertEquals(21, f.result); |
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assertTrue(f.isDone()); |
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assertFalse(f.isCancelled()); |
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assertFalse(f.isCompletedAbnormally()); |
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assertNull(f.getRawResult()); |
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}}; |
116 |
testInvokeOnPool(mainPool(), a); |
117 |
} |
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|
119 |
/** |
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* quietlyInvoke task returns when task completes normally. |
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* isCompletedAbnormally and isCancelled return false for normally |
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* completed tasks |
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*/ |
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public void testQuietlyInvoke() { |
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RecursiveAction a = new CheckedRecursiveAction() { |
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public void realCompute() { |
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FibAction f = new FibAction(8); |
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f.quietlyInvoke(); |
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assertEquals(21, f.result); |
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assertTrue(f.isDone()); |
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assertFalse(f.isCancelled()); |
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assertFalse(f.isCompletedAbnormally()); |
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assertNull(f.getRawResult()); |
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}}; |
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testInvokeOnPool(mainPool(), a); |
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} |
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|
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/** |
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* join of a forked task returns when task completes |
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*/ |
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public void testForkJoin() { |
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RecursiveAction a = new CheckedRecursiveAction() { |
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public void realCompute() { |
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FibAction f = new FibAction(8); |
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assertSame(f, f.fork()); |
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assertNull(f.join()); |
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assertEquals(21, f.result); |
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assertTrue(f.isDone()); |
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assertNull(f.getRawResult()); |
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}}; |
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testInvokeOnPool(mainPool(), a); |
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} |
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|
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/** |
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* get of a forked task returns when task completes |
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*/ |
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public void testForkGet() { |
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RecursiveAction a = new CheckedRecursiveAction() { |
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public void realCompute() throws Exception { |
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FibAction f = new FibAction(8); |
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assertSame(f, f.fork()); |
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assertNull(f.get()); |
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assertEquals(21, f.result); |
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assertTrue(f.isDone()); |
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}}; |
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testInvokeOnPool(mainPool(), a); |
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} |
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|
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/** |
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* timed get of a forked task returns when task completes |
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*/ |
172 |
public void testForkTimedGet() { |
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RecursiveAction a = new CheckedRecursiveAction() { |
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public void realCompute() throws Exception { |
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FibAction f = new FibAction(8); |
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assertSame(f, f.fork()); |
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assertNull(f.get(5L, TimeUnit.SECONDS)); |
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assertEquals(21, f.result); |
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assertTrue(f.isDone()); |
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}}; |
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testInvokeOnPool(mainPool(), a); |
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} |
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|
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/** |
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* timed get with null time unit throws NPE |
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*/ |
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public void testForkTimedGetNPE() { |
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RecursiveAction a = new CheckedRecursiveAction() { |
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public void realCompute() throws Exception { |
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FibAction f = new FibAction(8); |
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assertSame(f, f.fork()); |
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try { |
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f.get(5L, null); |
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shouldThrow(); |
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} catch (NullPointerException success) {} |
196 |
}}; |
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testInvokeOnPool(mainPool(), a); |
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} |
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|
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/** |
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* quietlyJoin of a forked task returns when task completes |
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*/ |
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public void testForkQuietlyJoin() { |
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RecursiveAction a = new CheckedRecursiveAction() { |
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public void realCompute() { |
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FibAction f = new FibAction(8); |
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assertSame(f, f.fork()); |
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f.quietlyJoin(); |
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assertEquals(21, f.result); |
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assertTrue(f.isDone()); |
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}}; |
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testInvokeOnPool(mainPool(), a); |
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} |
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|
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|
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/** |
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* helpQuiesce returns when tasks are complete. |
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* getQueuedTaskCount returns 0 when quiescent |
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*/ |
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public void testForkHelpQuiesce() { |
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RecursiveAction a = new CheckedRecursiveAction() { |
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public void realCompute() { |
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FibAction f = new FibAction(8); |
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assertSame(f, f.fork()); |
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f.helpQuiesce(); |
226 |
assertEquals(21, f.result); |
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assertTrue(f.isDone()); |
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assertEquals(0, getQueuedTaskCount()); |
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}}; |
230 |
testInvokeOnPool(mainPool(), a); |
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} |
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|
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|
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/** |
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* invoke task throws exception when task completes abnormally |
236 |
*/ |
237 |
public void testAbnormalInvoke() { |
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RecursiveAction a = new CheckedRecursiveAction() { |
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public void realCompute() { |
240 |
FailingFibAction f = new FailingFibAction(8); |
241 |
try { |
242 |
f.invoke(); |
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shouldThrow(); |
244 |
} catch (FJException success) {} |
245 |
}}; |
246 |
testInvokeOnPool(mainPool(), a); |
247 |
} |
248 |
|
249 |
/** |
250 |
* quietlyInvoke task returns when task completes abnormally |
251 |
*/ |
252 |
public void testAbnormalQuietlyInvoke() { |
253 |
RecursiveAction a = new CheckedRecursiveAction() { |
254 |
public void realCompute() { |
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FailingFibAction f = new FailingFibAction(8); |
256 |
f.quietlyInvoke(); |
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assertTrue(f.isDone()); |
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}}; |
259 |
testInvokeOnPool(mainPool(), a); |
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} |
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|
262 |
/** |
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* join of a forked task throws exception when task completes abnormally |
264 |
*/ |
265 |
public void testAbnormalForkJoin() { |
266 |
RecursiveAction a = new CheckedRecursiveAction() { |
267 |
public void realCompute() { |
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FailingFibAction f = new FailingFibAction(8); |
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assertSame(f, f.fork()); |
270 |
try { |
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f.join(); |
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shouldThrow(); |
273 |
} catch (FJException success) {} |
274 |
}}; |
275 |
testInvokeOnPool(mainPool(), a); |
276 |
} |
277 |
|
278 |
/** |
279 |
* get of a forked task throws exception when task completes abnormally |
280 |
*/ |
281 |
public void testAbnormalForkGet() { |
282 |
RecursiveAction a = new CheckedRecursiveAction() { |
283 |
public void realCompute() throws Exception { |
284 |
FailingFibAction f = new FailingFibAction(8); |
285 |
assertSame(f, f.fork()); |
286 |
try { |
287 |
f.get(); |
288 |
shouldThrow(); |
289 |
} catch (ExecutionException success) {} |
290 |
}}; |
291 |
testInvokeOnPool(mainPool(), a); |
292 |
} |
293 |
|
294 |
/** |
295 |
* timed get of a forked task throws exception when task completes abnormally |
296 |
*/ |
297 |
public void testAbnormalForkTimedGet() { |
298 |
RecursiveAction a = new CheckedRecursiveAction() { |
299 |
public void realCompute() throws Exception { |
300 |
FailingFibAction f = new FailingFibAction(8); |
301 |
assertSame(f, f.fork()); |
302 |
try { |
303 |
f.get(5L, TimeUnit.SECONDS); |
304 |
shouldThrow(); |
305 |
} catch (ExecutionException success) {} |
306 |
}}; |
307 |
testInvokeOnPool(mainPool(), a); |
308 |
} |
309 |
|
310 |
/** |
311 |
* quietlyJoin of a forked task returns when task completes abnormally |
312 |
*/ |
313 |
public void testAbnormalForkQuietlyJoin() { |
314 |
RecursiveAction a = new CheckedRecursiveAction() { |
315 |
public void realCompute() { |
316 |
FailingFibAction f = new FailingFibAction(8); |
317 |
assertSame(f, f.fork()); |
318 |
f.quietlyJoin(); |
319 |
assertTrue(f.isDone()); |
320 |
assertTrue(f.isCompletedAbnormally()); |
321 |
assertTrue(f.getException() instanceof FJException); |
322 |
}}; |
323 |
testInvokeOnPool(mainPool(), a); |
324 |
} |
325 |
|
326 |
/** |
327 |
* invoke task throws exception when task cancelled |
328 |
*/ |
329 |
public void testCancelledInvoke() { |
330 |
RecursiveAction a = new CheckedRecursiveAction() { |
331 |
public void realCompute() { |
332 |
FibAction f = new FibAction(8); |
333 |
assertTrue(f.cancel(true)); |
334 |
try { |
335 |
f.invoke(); |
336 |
shouldThrow(); |
337 |
} catch (CancellationException success) {} |
338 |
}}; |
339 |
testInvokeOnPool(mainPool(), a); |
340 |
} |
341 |
|
342 |
/** |
343 |
* join of a forked task throws exception when task cancelled |
344 |
*/ |
345 |
public void testCancelledForkJoin() { |
346 |
RecursiveAction a = new CheckedRecursiveAction() { |
347 |
public void realCompute() { |
348 |
FibAction f = new FibAction(8); |
349 |
assertTrue(f.cancel(true)); |
350 |
assertSame(f, f.fork()); |
351 |
try { |
352 |
f.join(); |
353 |
shouldThrow(); |
354 |
} catch (CancellationException success) {} |
355 |
}}; |
356 |
testInvokeOnPool(mainPool(), a); |
357 |
} |
358 |
|
359 |
/** |
360 |
* get of a forked task throws exception when task cancelled |
361 |
*/ |
362 |
public void testCancelledForkGet() { |
363 |
RecursiveAction a = new CheckedRecursiveAction() { |
364 |
public void realCompute() throws Exception { |
365 |
FibAction f = new FibAction(8); |
366 |
assertTrue(f.cancel(true)); |
367 |
assertSame(f, f.fork()); |
368 |
try { |
369 |
f.get(); |
370 |
shouldThrow(); |
371 |
} catch (CancellationException success) {} |
372 |
}}; |
373 |
testInvokeOnPool(mainPool(), a); |
374 |
} |
375 |
|
376 |
/** |
377 |
* timed get of a forked task throws exception when task cancelled |
378 |
*/ |
379 |
public void testCancelledForkTimedGet() { |
380 |
RecursiveAction a = new CheckedRecursiveAction() { |
381 |
public void realCompute() throws Exception { |
382 |
FibAction f = new FibAction(8); |
383 |
assertTrue(f.cancel(true)); |
384 |
assertSame(f, f.fork()); |
385 |
try { |
386 |
f.get(5L, TimeUnit.SECONDS); |
387 |
shouldThrow(); |
388 |
} catch (CancellationException success) {} |
389 |
}}; |
390 |
testInvokeOnPool(mainPool(), a); |
391 |
} |
392 |
|
393 |
/** |
394 |
* quietlyJoin of a forked task returns when task cancelled |
395 |
*/ |
396 |
public void testCancelledForkQuietlyJoin() { |
397 |
RecursiveAction a = new CheckedRecursiveAction() { |
398 |
public void realCompute() { |
399 |
FibAction f = new FibAction(8); |
400 |
assertTrue(f.cancel(true)); |
401 |
assertSame(f, f.fork()); |
402 |
f.quietlyJoin(); |
403 |
assertTrue(f.isDone()); |
404 |
assertTrue(f.isCompletedAbnormally()); |
405 |
assertTrue(f.isCancelled()); |
406 |
assertTrue(f.getException() instanceof CancellationException); |
407 |
}}; |
408 |
testInvokeOnPool(mainPool(), a); |
409 |
} |
410 |
|
411 |
/** |
412 |
* getPool of executing task returns its pool |
413 |
*/ |
414 |
public void testGetPool() { |
415 |
final ForkJoinPool mainPool = mainPool(); |
416 |
RecursiveAction a = new CheckedRecursiveAction() { |
417 |
public void realCompute() { |
418 |
assertSame(mainPool, getPool()); |
419 |
}}; |
420 |
testInvokeOnPool(mainPool, a); |
421 |
} |
422 |
|
423 |
/** |
424 |
* getPool of non-FJ task returns null |
425 |
*/ |
426 |
public void testGetPool2() { |
427 |
RecursiveAction a = new CheckedRecursiveAction() { |
428 |
public void realCompute() { |
429 |
assertNull(getPool()); |
430 |
}}; |
431 |
assertNull(a.invoke()); |
432 |
} |
433 |
|
434 |
/** |
435 |
* inForkJoinPool of executing task returns true |
436 |
*/ |
437 |
public void testInForkJoinPool() { |
438 |
RecursiveAction a = new CheckedRecursiveAction() { |
439 |
public void realCompute() { |
440 |
assertTrue(inForkJoinPool()); |
441 |
}}; |
442 |
testInvokeOnPool(mainPool(), a); |
443 |
} |
444 |
|
445 |
/** |
446 |
* inForkJoinPool of non-FJ task returns false |
447 |
*/ |
448 |
public void testInForkJoinPool2() { |
449 |
RecursiveAction a = new CheckedRecursiveAction() { |
450 |
public void realCompute() { |
451 |
assertFalse(inForkJoinPool()); |
452 |
}}; |
453 |
assertNull(a.invoke()); |
454 |
} |
455 |
|
456 |
/** |
457 |
* getPool of current thread in pool returns its pool |
458 |
*/ |
459 |
public void testWorkerGetPool() { |
460 |
final ForkJoinPool mainPool = mainPool(); |
461 |
RecursiveAction a = new CheckedRecursiveAction() { |
462 |
public void realCompute() { |
463 |
ForkJoinWorkerThread w = |
464 |
(ForkJoinWorkerThread) Thread.currentThread(); |
465 |
assertSame(mainPool, w.getPool()); |
466 |
}}; |
467 |
testInvokeOnPool(mainPool, a); |
468 |
} |
469 |
|
470 |
/** |
471 |
* getPoolIndex of current thread in pool returns 0 <= value < poolSize |
472 |
*/ |
473 |
public void testWorkerGetPoolIndex() { |
474 |
final ForkJoinPool mainPool = mainPool(); |
475 |
RecursiveAction a = new CheckedRecursiveAction() { |
476 |
public void realCompute() { |
477 |
ForkJoinWorkerThread w = |
478 |
(ForkJoinWorkerThread)(Thread.currentThread()); |
479 |
int idx = w.getPoolIndex(); |
480 |
assertTrue(idx >= 0); |
481 |
assertTrue(idx < mainPool.getPoolSize()); |
482 |
}}; |
483 |
testInvokeOnPool(mainPool, a); |
484 |
} |
485 |
|
486 |
|
487 |
/** |
488 |
* setRawResult(null) succeeds |
489 |
*/ |
490 |
public void testSetRawResult() { |
491 |
RecursiveAction a = new CheckedRecursiveAction() { |
492 |
public void realCompute() { |
493 |
setRawResult(null); |
494 |
}}; |
495 |
assertNull(a.invoke()); |
496 |
} |
497 |
|
498 |
/** |
499 |
* A reinitialized task may be re-invoked |
500 |
*/ |
501 |
public void testReinitialize() { |
502 |
RecursiveAction a = new CheckedRecursiveAction() { |
503 |
public void realCompute() { |
504 |
FibAction f = new FibAction(8); |
505 |
assertNull(f.invoke()); |
506 |
assertEquals(21, f.result); |
507 |
assertTrue(f.isDone()); |
508 |
assertFalse(f.isCancelled()); |
509 |
assertFalse(f.isCompletedAbnormally()); |
510 |
f.reinitialize(); |
511 |
assertNull(f.invoke()); |
512 |
assertEquals(21, f.result); |
513 |
}}; |
514 |
testInvokeOnPool(mainPool(), a); |
515 |
} |
516 |
|
517 |
/** |
518 |
* invoke task throws exception after invoking completeExceptionally |
519 |
*/ |
520 |
public void testCompleteExceptionally() { |
521 |
RecursiveAction a = new CheckedRecursiveAction() { |
522 |
public void realCompute() { |
523 |
FibAction f = new FibAction(8); |
524 |
f.completeExceptionally(new FJException()); |
525 |
try { |
526 |
f.invoke(); |
527 |
shouldThrow(); |
528 |
} catch (FJException success) {} |
529 |
}}; |
530 |
testInvokeOnPool(mainPool(), a); |
531 |
} |
532 |
|
533 |
/** |
534 |
* invoke task suppresses execution invoking complete |
535 |
*/ |
536 |
public void testComplete() { |
537 |
RecursiveAction a = new CheckedRecursiveAction() { |
538 |
public void realCompute() { |
539 |
FibAction f = new FibAction(8); |
540 |
f.complete(null); |
541 |
assertNull(f.invoke()); |
542 |
assertTrue(f.isDone()); |
543 |
assertEquals(0, f.result); |
544 |
}}; |
545 |
testInvokeOnPool(mainPool(), a); |
546 |
} |
547 |
|
548 |
/** |
549 |
* invokeAll(t1, t2) invokes all task arguments |
550 |
*/ |
551 |
public void testInvokeAll2() { |
552 |
RecursiveAction a = new CheckedRecursiveAction() { |
553 |
public void realCompute() { |
554 |
FibAction f = new FibAction(8); |
555 |
FibAction g = new FibAction(9); |
556 |
invokeAll(f, g); |
557 |
assertTrue(f.isDone()); |
558 |
assertEquals(21, f.result); |
559 |
assertTrue(g.isDone()); |
560 |
assertEquals(34, g.result); |
561 |
}}; |
562 |
testInvokeOnPool(mainPool(), a); |
563 |
} |
564 |
|
565 |
/** |
566 |
* invokeAll(tasks) with 1 argument invokes task |
567 |
*/ |
568 |
public void testInvokeAll1() { |
569 |
RecursiveAction a = new CheckedRecursiveAction() { |
570 |
public void realCompute() { |
571 |
FibAction f = new FibAction(8); |
572 |
invokeAll(f); |
573 |
assertTrue(f.isDone()); |
574 |
assertEquals(21, f.result); |
575 |
}}; |
576 |
testInvokeOnPool(mainPool(), a); |
577 |
} |
578 |
|
579 |
/** |
580 |
* invokeAll(tasks) with > 2 argument invokes tasks |
581 |
*/ |
582 |
public void testInvokeAll3() { |
583 |
RecursiveAction a = new CheckedRecursiveAction() { |
584 |
public void realCompute() { |
585 |
FibAction f = new FibAction(8); |
586 |
FibAction g = new FibAction(9); |
587 |
FibAction h = new FibAction(7); |
588 |
invokeAll(f, g, h); |
589 |
assertTrue(f.isDone()); |
590 |
assertEquals(21, f.result); |
591 |
assertTrue(g.isDone()); |
592 |
assertEquals(34, g.result); |
593 |
assertTrue(h.isDone()); |
594 |
assertEquals(13, h.result); |
595 |
}}; |
596 |
testInvokeOnPool(mainPool(), a); |
597 |
} |
598 |
|
599 |
/** |
600 |
* invokeAll(collection) invokes all tasks in the collection |
601 |
*/ |
602 |
public void testInvokeAllCollection() { |
603 |
RecursiveAction a = new CheckedRecursiveAction() { |
604 |
public void realCompute() { |
605 |
FibAction f = new FibAction(8); |
606 |
FibAction g = new FibAction(9); |
607 |
FibAction h = new FibAction(7); |
608 |
HashSet set = new HashSet(); |
609 |
set.add(f); |
610 |
set.add(g); |
611 |
set.add(h); |
612 |
invokeAll(set); |
613 |
assertTrue(f.isDone()); |
614 |
assertEquals(21, f.result); |
615 |
assertTrue(g.isDone()); |
616 |
assertEquals(34, g.result); |
617 |
assertTrue(h.isDone()); |
618 |
assertEquals(13, h.result); |
619 |
}}; |
620 |
testInvokeOnPool(mainPool(), a); |
621 |
} |
622 |
|
623 |
|
624 |
/** |
625 |
* invokeAll(tasks) with any null task throws NPE |
626 |
*/ |
627 |
public void testInvokeAllNPE() { |
628 |
RecursiveAction a = new CheckedRecursiveAction() { |
629 |
public void realCompute() { |
630 |
FibAction f = new FibAction(8); |
631 |
FibAction g = new FibAction(9); |
632 |
FibAction h = null; |
633 |
try { |
634 |
invokeAll(f, g, h); |
635 |
shouldThrow(); |
636 |
} catch (NullPointerException success) {} |
637 |
}}; |
638 |
testInvokeOnPool(mainPool(), a); |
639 |
} |
640 |
|
641 |
/** |
642 |
* invokeAll(t1, t2) throw exception if any task does |
643 |
*/ |
644 |
public void testAbnormalInvokeAll2() { |
645 |
RecursiveAction a = new CheckedRecursiveAction() { |
646 |
public void realCompute() { |
647 |
FibAction f = new FibAction(8); |
648 |
FailingFibAction g = new FailingFibAction(9); |
649 |
try { |
650 |
invokeAll(f, g); |
651 |
shouldThrow(); |
652 |
} catch (FJException success) {} |
653 |
}}; |
654 |
testInvokeOnPool(mainPool(), a); |
655 |
} |
656 |
|
657 |
/** |
658 |
* invokeAll(tasks) with 1 argument throws exception if task does |
659 |
*/ |
660 |
public void testAbnormalInvokeAll1() { |
661 |
RecursiveAction a = new CheckedRecursiveAction() { |
662 |
public void realCompute() { |
663 |
FailingFibAction g = new FailingFibAction(9); |
664 |
try { |
665 |
invokeAll(g); |
666 |
shouldThrow(); |
667 |
} catch (FJException success) {} |
668 |
}}; |
669 |
testInvokeOnPool(mainPool(), a); |
670 |
} |
671 |
|
672 |
/** |
673 |
* invokeAll(tasks) with > 2 argument throws exception if any task does |
674 |
*/ |
675 |
public void testAbnormalInvokeAll3() { |
676 |
RecursiveAction a = new CheckedRecursiveAction() { |
677 |
public void realCompute() { |
678 |
FibAction f = new FibAction(8); |
679 |
FailingFibAction g = new FailingFibAction(9); |
680 |
FibAction h = new FibAction(7); |
681 |
try { |
682 |
invokeAll(f, g, h); |
683 |
shouldThrow(); |
684 |
} catch (FJException success) {} |
685 |
}}; |
686 |
testInvokeOnPool(mainPool(), a); |
687 |
} |
688 |
|
689 |
/** |
690 |
* invokeAll(collection) throws exception if any task does |
691 |
*/ |
692 |
public void testAbnormalInvokeAllCollection() { |
693 |
RecursiveAction a = new CheckedRecursiveAction() { |
694 |
public void realCompute() { |
695 |
FailingFibAction f = new FailingFibAction(8); |
696 |
FibAction g = new FibAction(9); |
697 |
FibAction h = new FibAction(7); |
698 |
HashSet set = new HashSet(); |
699 |
set.add(f); |
700 |
set.add(g); |
701 |
set.add(h); |
702 |
try { |
703 |
invokeAll(set); |
704 |
shouldThrow(); |
705 |
} catch (FJException success) {} |
706 |
}}; |
707 |
testInvokeOnPool(mainPool(), a); |
708 |
} |
709 |
|
710 |
/** |
711 |
* tryUnfork returns true for most recent unexecuted task, |
712 |
* and suppresses execution |
713 |
*/ |
714 |
public void testTryUnfork() { |
715 |
RecursiveAction a = new CheckedRecursiveAction() { |
716 |
public void realCompute() { |
717 |
FibAction g = new FibAction(9); |
718 |
assertSame(g, g.fork()); |
719 |
FibAction f = new FibAction(8); |
720 |
assertSame(f, f.fork()); |
721 |
assertTrue(f.tryUnfork()); |
722 |
helpQuiesce(); |
723 |
assertFalse(f.isDone()); |
724 |
assertTrue(g.isDone()); |
725 |
}}; |
726 |
testInvokeOnPool(singletonPool(), a); |
727 |
} |
728 |
|
729 |
/** |
730 |
* getSurplusQueuedTaskCount returns > 0 when |
731 |
* there are more tasks than threads |
732 |
*/ |
733 |
public void testGetSurplusQueuedTaskCount() { |
734 |
RecursiveAction a = new CheckedRecursiveAction() { |
735 |
public void realCompute() { |
736 |
FibAction h = new FibAction(7); |
737 |
assertSame(h, h.fork()); |
738 |
FibAction g = new FibAction(9); |
739 |
assertSame(g, g.fork()); |
740 |
FibAction f = new FibAction(8); |
741 |
assertSame(f, f.fork()); |
742 |
assertTrue(getSurplusQueuedTaskCount() > 0); |
743 |
helpQuiesce(); |
744 |
}}; |
745 |
testInvokeOnPool(singletonPool(), a); |
746 |
} |
747 |
|
748 |
/** |
749 |
* peekNextLocalTask returns most recent unexecuted task. |
750 |
*/ |
751 |
public void testPeekNextLocalTask() { |
752 |
RecursiveAction a = new CheckedRecursiveAction() { |
753 |
public void realCompute() { |
754 |
FibAction g = new FibAction(9); |
755 |
assertSame(g, g.fork()); |
756 |
FibAction f = new FibAction(8); |
757 |
assertSame(f, f.fork()); |
758 |
assertSame(f, peekNextLocalTask()); |
759 |
assertNull(f.join()); |
760 |
assertTrue(f.isDone()); |
761 |
helpQuiesce(); |
762 |
}}; |
763 |
testInvokeOnPool(singletonPool(), a); |
764 |
} |
765 |
|
766 |
/** |
767 |
* pollNextLocalTask returns most recent unexecuted task |
768 |
* without executing it |
769 |
*/ |
770 |
public void testPollNextLocalTask() { |
771 |
RecursiveAction a = new CheckedRecursiveAction() { |
772 |
public void realCompute() { |
773 |
FibAction g = new FibAction(9); |
774 |
assertSame(g, g.fork()); |
775 |
FibAction f = new FibAction(8); |
776 |
assertSame(f, f.fork()); |
777 |
assertSame(f, pollNextLocalTask()); |
778 |
helpQuiesce(); |
779 |
assertFalse(f.isDone()); |
780 |
}}; |
781 |
testInvokeOnPool(singletonPool(), a); |
782 |
} |
783 |
|
784 |
/** |
785 |
* pollTask returns an unexecuted task |
786 |
* without executing it |
787 |
*/ |
788 |
public void testPollTask() { |
789 |
RecursiveAction a = new CheckedRecursiveAction() { |
790 |
public void realCompute() { |
791 |
FibAction g = new FibAction(9); |
792 |
assertSame(g, g.fork()); |
793 |
FibAction f = new FibAction(8); |
794 |
assertSame(f, f.fork()); |
795 |
assertSame(f, pollTask()); |
796 |
helpQuiesce(); |
797 |
assertFalse(f.isDone()); |
798 |
assertTrue(g.isDone()); |
799 |
}}; |
800 |
testInvokeOnPool(singletonPool(), a); |
801 |
} |
802 |
|
803 |
/** |
804 |
* peekNextLocalTask returns least recent unexecuted task in async mode |
805 |
*/ |
806 |
public void testPeekNextLocalTaskAsync() { |
807 |
RecursiveAction a = new CheckedRecursiveAction() { |
808 |
public void realCompute() { |
809 |
FibAction g = new FibAction(9); |
810 |
assertSame(g, g.fork()); |
811 |
FibAction f = new FibAction(8); |
812 |
assertSame(f, f.fork()); |
813 |
assertSame(g, peekNextLocalTask()); |
814 |
assertNull(f.join()); |
815 |
helpQuiesce(); |
816 |
assertTrue(f.isDone()); |
817 |
}}; |
818 |
testInvokeOnPool(asyncSingletonPool(), a); |
819 |
} |
820 |
|
821 |
/** |
822 |
* pollNextLocalTask returns least recent unexecuted task |
823 |
* without executing it, in async mode |
824 |
*/ |
825 |
public void testPollNextLocalTaskAsync() { |
826 |
RecursiveAction a = new CheckedRecursiveAction() { |
827 |
public void realCompute() { |
828 |
FibAction g = new FibAction(9); |
829 |
assertSame(g, g.fork()); |
830 |
FibAction f = new FibAction(8); |
831 |
assertSame(f, f.fork()); |
832 |
assertSame(g, pollNextLocalTask()); |
833 |
helpQuiesce(); |
834 |
assertTrue(f.isDone()); |
835 |
assertFalse(g.isDone()); |
836 |
}}; |
837 |
testInvokeOnPool(asyncSingletonPool(), a); |
838 |
} |
839 |
|
840 |
/** |
841 |
* pollTask returns an unexecuted task |
842 |
* without executing it, in async mode |
843 |
*/ |
844 |
public void testPollTaskAsync() { |
845 |
RecursiveAction a = new CheckedRecursiveAction() { |
846 |
public void realCompute() { |
847 |
FibAction g = new FibAction(9); |
848 |
assertSame(g, g.fork()); |
849 |
FibAction f = new FibAction(8); |
850 |
assertSame(f, f.fork()); |
851 |
assertSame(g, pollTask()); |
852 |
helpQuiesce(); |
853 |
assertTrue(f.isDone()); |
854 |
assertFalse(g.isDone()); |
855 |
}}; |
856 |
testInvokeOnPool(asyncSingletonPool(), a); |
857 |
} |
858 |
|
859 |
} |