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dl |
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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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import junit.framework.*; |
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import java.util.concurrent.*; |
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import java.util.*; |
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public class RecursiveTaskTest extends JSR166TestCase { |
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public static void main(String[] args) { |
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jsr166 |
1.2 |
junit.textui.TestRunner.run (suite()); |
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dl |
1.1 |
} |
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public static Test suite() { |
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return new TestSuite(RecursiveTaskTest.class); |
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} |
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static final ForkJoinPool mainPool = new ForkJoinPool(); |
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static final ForkJoinPool singletonPool = new ForkJoinPool(1); |
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static final ForkJoinPool asyncSingletonPool = new ForkJoinPool(1); |
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static { |
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asyncSingletonPool.setAsyncMode(true); |
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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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// An invalid return value for Fib |
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static final Integer NoResult = Integer.valueOf(-17); |
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// A simple recursive task for testing |
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jsr166 |
1.2 |
static final class FibTask extends RecursiveTask<Integer> { |
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dl |
1.1 |
final int number; |
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FibTask(int n) { number = n; } |
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public Integer compute() { |
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int n = number; |
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if (n <= 1) |
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return n; |
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FibTask f1 = new FibTask(n - 1); |
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f1.fork(); |
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return (new FibTask(n - 2)).compute() + f1.join(); |
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} |
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} |
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// A recursive action failing in base case |
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jsr166 |
1.2 |
static final class FailingFibTask extends RecursiveTask<Integer> { |
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dl |
1.1 |
final int number; |
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int result; |
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FailingFibTask(int n) { number = n; } |
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public Integer 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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FailingFibTask f1 = new FailingFibTask(n - 1); |
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f1.fork(); |
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return (new FibTask(n - 2)).compute() + f1.join(); |
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} |
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} |
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jsr166 |
1.2 |
/** |
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dl |
1.1 |
* invoke returns value when task completes normally. |
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* isCompletedAbnormally and isCancelled return false for normally |
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* completed tasks. getRawResult of a completed non-null task |
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* returns value; |
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jsr166 |
1.2 |
* |
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dl |
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*/ |
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public void testInvoke() { |
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RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
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public Integer compute() { |
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FibTask f = new FibTask(8); |
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Integer r = f.invoke(); |
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threadAssertTrue(r == 21); |
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threadAssertTrue(f.isDone()); |
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threadAssertFalse(f.isCancelled()); |
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threadAssertFalse(f.isCompletedAbnormally()); |
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threadAssertTrue(f.getRawResult() == 21); |
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return r; |
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} |
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}; |
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assertTrue(mainPool.invoke(a) == 21); |
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} |
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jsr166 |
1.2 |
/** |
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dl |
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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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RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
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public Integer compute() { |
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FibTask f = new FibTask(8); |
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f.quietlyInvoke(); |
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Integer r = f.getRawResult(); |
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threadAssertTrue(r == 21); |
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threadAssertTrue(f.isDone()); |
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threadAssertFalse(f.isCancelled()); |
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threadAssertFalse(f.isCompletedAbnormally()); |
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return r; |
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} |
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}; |
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assertTrue(mainPool.invoke(a) == 21); |
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} |
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jsr166 |
1.2 |
/** |
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dl |
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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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RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
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public Integer compute() { |
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FibTask f = new FibTask(8); |
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f.fork(); |
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Integer r = f.join(); |
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threadAssertTrue(r == 21); |
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threadAssertTrue(f.isDone()); |
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return r; |
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} |
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}; |
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assertTrue(mainPool.invoke(a) == 21); |
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} |
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jsr166 |
1.2 |
/** |
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dl |
1.1 |
* get of a forked task returns when task completes |
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*/ |
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public void testForkGet() { |
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RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
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public Integer compute() { |
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try { |
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FibTask f = new FibTask(8); |
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f.fork(); |
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Integer r = f.get(); |
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threadAssertTrue(r == 21); |
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threadAssertTrue(f.isDone()); |
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return r; |
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jsr166 |
1.2 |
} catch (Exception ex) { |
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dl |
1.1 |
unexpectedException(); |
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} |
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return NoResult; |
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} |
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}; |
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assertTrue(mainPool.invoke(a) == 21); |
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} |
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jsr166 |
1.2 |
/** |
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dl |
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* timed get of a forked task returns when task completes |
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*/ |
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public void testForkTimedGet() { |
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RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
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public Integer compute() { |
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try { |
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FibTask f = new FibTask(8); |
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f.fork(); |
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Integer r = f.get(5L, TimeUnit.SECONDS); |
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threadAssertTrue(r == 21); |
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threadAssertTrue(f.isDone()); |
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return r; |
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jsr166 |
1.2 |
} catch (Exception ex) { |
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dl |
1.1 |
unexpectedException(); |
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} |
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return NoResult; |
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} |
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}; |
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assertTrue(mainPool.invoke(a) == 21); |
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} |
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jsr166 |
1.2 |
/** |
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dl |
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* helpJoin of a forked task returns when task completes |
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*/ |
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public void testForkHelpJoin() { |
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RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
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public Integer compute() { |
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FibTask f = new FibTask(8); |
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f.fork(); |
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Integer r = f.helpJoin(); |
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threadAssertTrue(r == 21); |
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threadAssertTrue(f.isDone()); |
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return r; |
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} |
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}; |
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assertTrue(mainPool.invoke(a) == 21); |
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} |
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jsr166 |
1.2 |
/** |
186 |
dl |
1.1 |
* quietlyJoin of a forked task returns when task completes |
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*/ |
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public void testForkQuietlyJoin() { |
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RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
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public Integer compute() { |
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FibTask f = new FibTask(8); |
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f.fork(); |
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f.quietlyJoin(); |
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Integer r = f.getRawResult(); |
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threadAssertTrue(r == 21); |
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threadAssertTrue(f.isDone()); |
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return r; |
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} |
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}; |
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assertTrue(mainPool.invoke(a) == 21); |
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} |
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204 |
jsr166 |
1.2 |
/** |
205 |
dl |
1.1 |
* quietlyHelpJoin of a forked task returns when task completes |
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*/ |
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public void testForkQuietlyHelpJoin() { |
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RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
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public Integer compute() { |
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FibTask f = new FibTask(8); |
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f.fork(); |
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f.quietlyHelpJoin(); |
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Integer r = f.getRawResult(); |
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threadAssertTrue(r == 21); |
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threadAssertTrue(f.isDone()); |
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return r; |
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} |
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}; |
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assertTrue(mainPool.invoke(a) == 21); |
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} |
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223 |
jsr166 |
1.2 |
/** |
224 |
dl |
1.1 |
* 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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RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
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public Integer compute() { |
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FibTask f = new FibTask(8); |
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f.fork(); |
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f.helpQuiesce(); |
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Integer r = f.getRawResult(); |
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threadAssertTrue(r == 21); |
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threadAssertTrue(f.isDone()); |
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threadAssertTrue(getQueuedTaskCount() == 0); |
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return r; |
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} |
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}; |
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assertTrue(mainPool.invoke(a) == 21); |
241 |
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} |
242 |
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243 |
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244 |
jsr166 |
1.2 |
/** |
245 |
dl |
1.1 |
* invoke task throws exception when task completes abnormally |
246 |
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*/ |
247 |
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public void testAbnormalInvoke() { |
248 |
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RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
249 |
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public Integer compute() { |
250 |
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try { |
251 |
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FailingFibTask f = new FailingFibTask(8); |
252 |
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f.invoke(); |
253 |
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shouldThrow(); |
254 |
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return NoResult; |
255 |
jsr166 |
1.2 |
} catch (FJException success) { |
256 |
dl |
1.1 |
} |
257 |
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return NoResult; |
258 |
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} |
259 |
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}; |
260 |
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mainPool.invoke(a); |
261 |
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} |
262 |
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263 |
jsr166 |
1.2 |
/** |
264 |
jsr166 |
1.4 |
* quietlyInvoke task returns when task completes abnormally |
265 |
dl |
1.1 |
*/ |
266 |
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public void testAbnormalQuietlyInvoke() { |
267 |
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RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
268 |
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public Integer compute() { |
269 |
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FailingFibTask f = new FailingFibTask(8); |
270 |
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f.quietlyInvoke(); |
271 |
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threadAssertTrue(f.isDone()); |
272 |
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return NoResult; |
273 |
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} |
274 |
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}; |
275 |
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mainPool.invoke(a); |
276 |
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} |
277 |
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278 |
jsr166 |
1.2 |
/** |
279 |
dl |
1.1 |
* join of a forked task throws exception when task completes abnormally |
280 |
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*/ |
281 |
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public void testAbnormalForkJoin() { |
282 |
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RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
283 |
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public Integer compute() { |
284 |
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try { |
285 |
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FailingFibTask f = new FailingFibTask(8); |
286 |
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f.fork(); |
287 |
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Integer r = f.join(); |
288 |
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shouldThrow(); |
289 |
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return r; |
290 |
jsr166 |
1.2 |
} catch (FJException success) { |
291 |
dl |
1.1 |
} |
292 |
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return NoResult; |
293 |
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} |
294 |
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}; |
295 |
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mainPool.invoke(a); |
296 |
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} |
297 |
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298 |
jsr166 |
1.2 |
/** |
299 |
dl |
1.1 |
* get of a forked task throws exception when task completes abnormally |
300 |
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*/ |
301 |
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public void testAbnormalForkGet() { |
302 |
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RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
303 |
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public Integer compute() { |
304 |
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try { |
305 |
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FailingFibTask f = new FailingFibTask(8); |
306 |
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f.fork(); |
307 |
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Integer r = f.get(); |
308 |
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shouldThrow(); |
309 |
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return r; |
310 |
jsr166 |
1.5 |
} catch (ExecutionException success) { |
311 |
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} catch (Exception ex) { |
312 |
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unexpectedException(ex); |
313 |
dl |
1.1 |
} |
314 |
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return NoResult; |
315 |
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} |
316 |
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}; |
317 |
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mainPool.invoke(a); |
318 |
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} |
319 |
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320 |
jsr166 |
1.2 |
/** |
321 |
dl |
1.1 |
* timed get of a forked task throws exception when task completes abnormally |
322 |
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*/ |
323 |
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public void testAbnormalForkTimedGet() { |
324 |
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RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
325 |
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public Integer compute() { |
326 |
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try { |
327 |
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FailingFibTask f = new FailingFibTask(8); |
328 |
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f.fork(); |
329 |
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Integer r = f.get(5L, TimeUnit.SECONDS); |
330 |
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shouldThrow(); |
331 |
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return r; |
332 |
jsr166 |
1.5 |
} catch (ExecutionException success) { |
333 |
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} catch (Exception ex) { |
334 |
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unexpectedException(ex); |
335 |
dl |
1.1 |
} |
336 |
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return NoResult; |
337 |
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} |
338 |
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}; |
339 |
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mainPool.invoke(a); |
340 |
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} |
341 |
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|
342 |
jsr166 |
1.2 |
/** |
343 |
dl |
1.1 |
* join of a forked task throws exception when task completes abnormally |
344 |
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*/ |
345 |
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public void testAbnormalForkHelpJoin() { |
346 |
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RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
347 |
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public Integer compute() { |
348 |
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try { |
349 |
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FailingFibTask f = new FailingFibTask(8); |
350 |
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f.fork(); |
351 |
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Integer r = f.helpJoin(); |
352 |
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shouldThrow(); |
353 |
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return r; |
354 |
jsr166 |
1.2 |
} catch (FJException success) { |
355 |
dl |
1.1 |
} |
356 |
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return NoResult; |
357 |
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} |
358 |
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}; |
359 |
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mainPool.invoke(a); |
360 |
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} |
361 |
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|
362 |
jsr166 |
1.2 |
/** |
363 |
dl |
1.1 |
* quietlyHelpJoin of a forked task returns when task completes abnormally. |
364 |
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* getException of failed task returns its exception. |
365 |
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* isCompletedAbnormally of a failed task returns true. |
366 |
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* isCancelled of a failed uncancelled task returns false |
367 |
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*/ |
368 |
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public void testAbnormalForkQuietlyHelpJoin() { |
369 |
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RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
370 |
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public Integer compute() { |
371 |
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FailingFibTask f = new FailingFibTask(8); |
372 |
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f.fork(); |
373 |
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f.quietlyHelpJoin(); |
374 |
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threadAssertTrue(f.isDone()); |
375 |
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threadAssertTrue(f.isCompletedAbnormally()); |
376 |
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threadAssertFalse(f.isCancelled()); |
377 |
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threadAssertTrue(f.getException() instanceof FJException); |
378 |
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return NoResult; |
379 |
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} |
380 |
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}; |
381 |
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mainPool.invoke(a); |
382 |
|
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} |
383 |
|
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|
384 |
jsr166 |
1.2 |
/** |
385 |
dl |
1.1 |
* quietlyJoin of a forked task returns when task completes abnormally |
386 |
|
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*/ |
387 |
|
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public void testAbnormalForkQuietlyJoin() { |
388 |
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RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
389 |
|
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public Integer compute() { |
390 |
|
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FailingFibTask f = new FailingFibTask(8); |
391 |
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f.fork(); |
392 |
|
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f.quietlyJoin(); |
393 |
|
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threadAssertTrue(f.isDone()); |
394 |
|
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threadAssertTrue(f.isCompletedAbnormally()); |
395 |
|
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threadAssertTrue(f.getException() instanceof FJException); |
396 |
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return NoResult; |
397 |
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} |
398 |
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}; |
399 |
|
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mainPool.invoke(a); |
400 |
|
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} |
401 |
|
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|
402 |
jsr166 |
1.2 |
/** |
403 |
dl |
1.1 |
* invoke task throws exception when task cancelled |
404 |
|
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*/ |
405 |
|
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public void testCancelledInvoke() { |
406 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
407 |
|
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public Integer compute() { |
408 |
|
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try { |
409 |
|
|
FibTask f = new FibTask(8); |
410 |
|
|
f.cancel(true); |
411 |
|
|
Integer r = f.invoke(); |
412 |
|
|
shouldThrow(); |
413 |
|
|
return r; |
414 |
jsr166 |
1.2 |
} catch (CancellationException success) { |
415 |
dl |
1.1 |
} |
416 |
|
|
return NoResult; |
417 |
|
|
} |
418 |
|
|
}; |
419 |
|
|
mainPool.invoke(a); |
420 |
|
|
} |
421 |
|
|
|
422 |
jsr166 |
1.2 |
/** |
423 |
dl |
1.1 |
* join of a forked task throws exception when task cancelled |
424 |
|
|
*/ |
425 |
|
|
public void testCancelledForkJoin() { |
426 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
427 |
|
|
public Integer compute() { |
428 |
|
|
try { |
429 |
|
|
FibTask f = new FibTask(8); |
430 |
|
|
f.cancel(true); |
431 |
|
|
f.fork(); |
432 |
|
|
Integer r = f.join(); |
433 |
|
|
shouldThrow(); |
434 |
|
|
return r; |
435 |
jsr166 |
1.2 |
} catch (CancellationException success) { |
436 |
dl |
1.1 |
} |
437 |
|
|
return NoResult; |
438 |
|
|
} |
439 |
|
|
}; |
440 |
|
|
mainPool.invoke(a); |
441 |
|
|
} |
442 |
|
|
|
443 |
jsr166 |
1.2 |
/** |
444 |
dl |
1.1 |
* get of a forked task throws exception when task cancelled |
445 |
|
|
*/ |
446 |
|
|
public void testCancelledForkGet() { |
447 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
448 |
|
|
public Integer compute() { |
449 |
|
|
try { |
450 |
|
|
FibTask f = new FibTask(8); |
451 |
|
|
f.cancel(true); |
452 |
|
|
f.fork(); |
453 |
|
|
Integer r = f.get(); |
454 |
|
|
shouldThrow(); |
455 |
|
|
return r; |
456 |
jsr166 |
1.5 |
} catch (CancellationException success) { |
457 |
|
|
} catch (Exception ex) { |
458 |
|
|
unexpectedException(ex); |
459 |
dl |
1.1 |
} |
460 |
|
|
return NoResult; |
461 |
|
|
} |
462 |
|
|
}; |
463 |
|
|
mainPool.invoke(a); |
464 |
|
|
} |
465 |
|
|
|
466 |
jsr166 |
1.2 |
/** |
467 |
dl |
1.1 |
* timed get of a forked task throws exception when task cancelled |
468 |
|
|
*/ |
469 |
|
|
public void testCancelledForkTimedGet() { |
470 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
471 |
|
|
public Integer compute() { |
472 |
|
|
try { |
473 |
|
|
FibTask f = new FibTask(8); |
474 |
|
|
f.cancel(true); |
475 |
|
|
f.fork(); |
476 |
|
|
Integer r = f.get(5L, TimeUnit.SECONDS); |
477 |
|
|
shouldThrow(); |
478 |
|
|
return r; |
479 |
jsr166 |
1.5 |
} catch (CancellationException success) { |
480 |
|
|
} catch (Exception ex) { |
481 |
|
|
unexpectedException(ex); |
482 |
dl |
1.1 |
} |
483 |
|
|
return NoResult; |
484 |
|
|
} |
485 |
|
|
}; |
486 |
|
|
mainPool.invoke(a); |
487 |
|
|
} |
488 |
|
|
|
489 |
jsr166 |
1.2 |
/** |
490 |
dl |
1.1 |
* join of a forked task throws exception when task cancelled |
491 |
|
|
*/ |
492 |
|
|
public void testCancelledForkHelpJoin() { |
493 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
494 |
|
|
public Integer compute() { |
495 |
|
|
try { |
496 |
|
|
FibTask f = new FibTask(8); |
497 |
|
|
f.cancel(true); |
498 |
|
|
f.fork(); |
499 |
|
|
Integer r = f.helpJoin(); |
500 |
|
|
shouldThrow(); |
501 |
|
|
return r; |
502 |
jsr166 |
1.2 |
} catch (CancellationException success) { |
503 |
dl |
1.1 |
} |
504 |
|
|
return NoResult; |
505 |
|
|
} |
506 |
|
|
}; |
507 |
|
|
mainPool.invoke(a); |
508 |
|
|
} |
509 |
|
|
|
510 |
jsr166 |
1.2 |
/** |
511 |
dl |
1.1 |
* quietlyHelpJoin of a forked task returns when task cancelled. |
512 |
|
|
* getException of cancelled task returns its exception |
513 |
|
|
* isCompletedAbnormally of a cancelled task returns true. |
514 |
|
|
* isCancelled of a cancelled task returns true |
515 |
|
|
*/ |
516 |
|
|
public void testCancelledForkQuietlyHelpJoin() { |
517 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
518 |
|
|
public Integer compute() { |
519 |
|
|
FibTask f = new FibTask(8); |
520 |
|
|
f.cancel(true); |
521 |
|
|
f.fork(); |
522 |
|
|
f.quietlyHelpJoin(); |
523 |
|
|
threadAssertTrue(f.isDone()); |
524 |
|
|
threadAssertTrue(f.isCompletedAbnormally()); |
525 |
|
|
threadAssertTrue(f.isCancelled()); |
526 |
|
|
threadAssertTrue(f.getException() instanceof CancellationException); |
527 |
|
|
return NoResult; |
528 |
|
|
} |
529 |
|
|
}; |
530 |
|
|
mainPool.invoke(a); |
531 |
|
|
} |
532 |
|
|
|
533 |
jsr166 |
1.2 |
/** |
534 |
dl |
1.1 |
* quietlyJoin of a forked task returns when task cancelled |
535 |
|
|
*/ |
536 |
|
|
public void testCancelledForkQuietlyJoin() { |
537 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
538 |
|
|
public Integer compute() { |
539 |
|
|
FibTask f = new FibTask(8); |
540 |
|
|
f.cancel(true); |
541 |
|
|
f.fork(); |
542 |
|
|
f.quietlyJoin(); |
543 |
|
|
threadAssertTrue(f.isDone()); |
544 |
|
|
threadAssertTrue(f.isCompletedAbnormally()); |
545 |
|
|
threadAssertTrue(f.getException() instanceof CancellationException); |
546 |
|
|
return NoResult; |
547 |
|
|
} |
548 |
|
|
}; |
549 |
|
|
mainPool.invoke(a); |
550 |
|
|
} |
551 |
|
|
|
552 |
|
|
/** |
553 |
|
|
* getPool of executing task returns its pool |
554 |
|
|
*/ |
555 |
|
|
public void testGetPool() { |
556 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
557 |
|
|
public Integer compute() { |
558 |
|
|
threadAssertTrue(getPool() == mainPool); |
559 |
|
|
return NoResult; |
560 |
|
|
} |
561 |
|
|
}; |
562 |
|
|
mainPool.invoke(a); |
563 |
|
|
} |
564 |
|
|
|
565 |
|
|
/** |
566 |
|
|
* getPool of non-FJ task returns null |
567 |
|
|
*/ |
568 |
|
|
public void testGetPool2() { |
569 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
570 |
|
|
public Integer compute() { |
571 |
|
|
threadAssertTrue(getPool() == null); |
572 |
|
|
return NoResult; |
573 |
|
|
} |
574 |
|
|
}; |
575 |
|
|
a.invoke(); |
576 |
|
|
} |
577 |
jsr166 |
1.2 |
|
578 |
dl |
1.1 |
/** |
579 |
|
|
* inForkJoinPool of executing task returns true |
580 |
|
|
*/ |
581 |
|
|
public void testInForkJoinPool() { |
582 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
583 |
|
|
public Integer compute() { |
584 |
|
|
threadAssertTrue(inForkJoinPool()); |
585 |
|
|
return NoResult; |
586 |
|
|
} |
587 |
|
|
}; |
588 |
|
|
mainPool.invoke(a); |
589 |
|
|
} |
590 |
|
|
|
591 |
|
|
/** |
592 |
|
|
* inForkJoinPool of non-FJ task returns false |
593 |
|
|
*/ |
594 |
|
|
public void testInForkJoinPool2() { |
595 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
596 |
|
|
public Integer compute() { |
597 |
|
|
threadAssertTrue(!inForkJoinPool()); |
598 |
|
|
return NoResult; |
599 |
|
|
} |
600 |
|
|
}; |
601 |
|
|
a.invoke(); |
602 |
|
|
} |
603 |
|
|
|
604 |
|
|
/** |
605 |
|
|
* setRawResult(null) succeeds |
606 |
|
|
*/ |
607 |
|
|
public void testSetRawResult() { |
608 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
609 |
|
|
public Integer compute() { |
610 |
|
|
setRawResult(NoResult); |
611 |
|
|
return NoResult; |
612 |
|
|
} |
613 |
|
|
}; |
614 |
|
|
assertEquals(a.invoke(), NoResult); |
615 |
|
|
} |
616 |
|
|
|
617 |
jsr166 |
1.2 |
/** |
618 |
dl |
1.1 |
* A reinitialized task may be re-invoked |
619 |
|
|
*/ |
620 |
|
|
public void testReinitialize() { |
621 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
622 |
|
|
public Integer compute() { |
623 |
|
|
FibTask f = new FibTask(8); |
624 |
|
|
Integer r = f.invoke(); |
625 |
|
|
threadAssertTrue(r == 21); |
626 |
|
|
threadAssertTrue(f.isDone()); |
627 |
|
|
threadAssertFalse(f.isCancelled()); |
628 |
|
|
threadAssertFalse(f.isCompletedAbnormally()); |
629 |
|
|
f.reinitialize(); |
630 |
|
|
r = f.invoke(); |
631 |
|
|
threadAssertTrue(r == 21); |
632 |
|
|
return NoResult; |
633 |
|
|
} |
634 |
|
|
}; |
635 |
|
|
mainPool.invoke(a); |
636 |
|
|
} |
637 |
|
|
|
638 |
jsr166 |
1.2 |
/** |
639 |
dl |
1.1 |
* invoke task throws exception after invoking completeExceptionally |
640 |
|
|
*/ |
641 |
|
|
public void testCompleteExceptionally() { |
642 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
643 |
|
|
public Integer compute() { |
644 |
|
|
try { |
645 |
|
|
FibTask f = new FibTask(8); |
646 |
|
|
f.completeExceptionally(new FJException()); |
647 |
|
|
Integer r = f.invoke(); |
648 |
|
|
shouldThrow(); |
649 |
|
|
return r; |
650 |
jsr166 |
1.2 |
} catch (FJException success) { |
651 |
dl |
1.1 |
} |
652 |
|
|
return NoResult; |
653 |
|
|
} |
654 |
|
|
}; |
655 |
|
|
mainPool.invoke(a); |
656 |
|
|
} |
657 |
|
|
|
658 |
jsr166 |
1.2 |
/** |
659 |
dl |
1.1 |
* invoke task suppresses execution invoking complete |
660 |
|
|
*/ |
661 |
|
|
public void testComplete() { |
662 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
663 |
|
|
public Integer compute() { |
664 |
|
|
FibTask f = new FibTask(8); |
665 |
|
|
f.complete(NoResult); |
666 |
|
|
Integer r = f.invoke(); |
667 |
|
|
threadAssertTrue(f.isDone()); |
668 |
|
|
threadAssertTrue(r == NoResult); |
669 |
|
|
return r; |
670 |
|
|
} |
671 |
|
|
}; |
672 |
|
|
mainPool.invoke(a); |
673 |
|
|
} |
674 |
|
|
|
675 |
jsr166 |
1.2 |
/** |
676 |
dl |
1.1 |
* invokeAll(t1, t2) invokes all task arguments |
677 |
|
|
*/ |
678 |
|
|
public void testInvokeAll2() { |
679 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
680 |
|
|
public Integer compute() { |
681 |
|
|
FibTask f = new FibTask(8); |
682 |
|
|
FibTask g = new FibTask(9); |
683 |
|
|
invokeAll(f, g); |
684 |
|
|
threadAssertTrue(f.isDone()); |
685 |
|
|
threadAssertTrue(f.join() == 21); |
686 |
|
|
threadAssertTrue(g.isDone()); |
687 |
|
|
threadAssertTrue(g.join() == 34); |
688 |
|
|
return NoResult; |
689 |
|
|
} |
690 |
|
|
}; |
691 |
|
|
mainPool.invoke(a); |
692 |
|
|
} |
693 |
|
|
|
694 |
jsr166 |
1.2 |
/** |
695 |
dl |
1.1 |
* invokeAll(tasks) with 1 argument invokes task |
696 |
|
|
*/ |
697 |
|
|
public void testInvokeAll1() { |
698 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
699 |
|
|
public Integer compute() { |
700 |
|
|
FibTask f = new FibTask(8); |
701 |
|
|
invokeAll(f); |
702 |
|
|
threadAssertTrue(f.isDone()); |
703 |
|
|
threadAssertTrue(f.join() == 21); |
704 |
|
|
return NoResult; |
705 |
|
|
} |
706 |
|
|
}; |
707 |
|
|
mainPool.invoke(a); |
708 |
|
|
} |
709 |
|
|
|
710 |
jsr166 |
1.2 |
/** |
711 |
dl |
1.1 |
* invokeAll(tasks) with > 2 argument invokes tasks |
712 |
|
|
*/ |
713 |
|
|
public void testInvokeAll3() { |
714 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
715 |
|
|
public Integer compute() { |
716 |
|
|
FibTask f = new FibTask(8); |
717 |
|
|
FibTask g = new FibTask(9); |
718 |
|
|
FibTask h = new FibTask(7); |
719 |
|
|
invokeAll(f, g, h); |
720 |
|
|
threadAssertTrue(f.isDone()); |
721 |
|
|
threadAssertTrue(f.join() == 21); |
722 |
|
|
threadAssertTrue(g.isDone()); |
723 |
|
|
threadAssertTrue(g.join() == 34); |
724 |
|
|
threadAssertTrue(h.isDone()); |
725 |
|
|
threadAssertTrue(h.join() == 13); |
726 |
|
|
return NoResult; |
727 |
|
|
} |
728 |
|
|
}; |
729 |
|
|
mainPool.invoke(a); |
730 |
|
|
} |
731 |
|
|
|
732 |
jsr166 |
1.2 |
/** |
733 |
dl |
1.1 |
* invokeAll(collection) invokes all tasks in the collection |
734 |
|
|
*/ |
735 |
|
|
public void testInvokeAllCollection() { |
736 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
737 |
|
|
public Integer compute() { |
738 |
|
|
FibTask f = new FibTask(8); |
739 |
|
|
FibTask g = new FibTask(9); |
740 |
|
|
FibTask h = new FibTask(7); |
741 |
|
|
HashSet set = new HashSet(); |
742 |
|
|
set.add(f); |
743 |
|
|
set.add(g); |
744 |
|
|
set.add(h); |
745 |
|
|
invokeAll(set); |
746 |
|
|
threadAssertTrue(f.isDone()); |
747 |
|
|
threadAssertTrue(f.join() == 21); |
748 |
|
|
threadAssertTrue(g.isDone()); |
749 |
|
|
threadAssertTrue(g.join() == 34); |
750 |
|
|
threadAssertTrue(h.isDone()); |
751 |
|
|
threadAssertTrue(h.join() == 13); |
752 |
|
|
return NoResult; |
753 |
|
|
} |
754 |
|
|
}; |
755 |
|
|
mainPool.invoke(a); |
756 |
|
|
} |
757 |
|
|
|
758 |
|
|
|
759 |
jsr166 |
1.2 |
/** |
760 |
dl |
1.1 |
* invokeAll(t1, t2) throw exception if any task does |
761 |
|
|
*/ |
762 |
|
|
public void testAbnormalInvokeAll2() { |
763 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
764 |
|
|
public Integer compute() { |
765 |
|
|
try { |
766 |
|
|
FibTask f = new FibTask(8); |
767 |
|
|
FailingFibTask g = new FailingFibTask(9); |
768 |
|
|
invokeAll(f, g); |
769 |
|
|
shouldThrow(); |
770 |
|
|
return NoResult; |
771 |
jsr166 |
1.2 |
} catch (FJException success) { |
772 |
dl |
1.1 |
} |
773 |
|
|
return NoResult; |
774 |
|
|
} |
775 |
|
|
}; |
776 |
|
|
mainPool.invoke(a); |
777 |
|
|
} |
778 |
|
|
|
779 |
jsr166 |
1.2 |
/** |
780 |
dl |
1.1 |
* invokeAll(tasks) with 1 argument throws exception if task does |
781 |
|
|
*/ |
782 |
|
|
public void testAbnormalInvokeAll1() { |
783 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
784 |
|
|
public Integer compute() { |
785 |
|
|
try { |
786 |
|
|
FailingFibTask g = new FailingFibTask(9); |
787 |
|
|
invokeAll(g); |
788 |
|
|
shouldThrow(); |
789 |
|
|
return NoResult; |
790 |
jsr166 |
1.2 |
} catch (FJException success) { |
791 |
dl |
1.1 |
} |
792 |
|
|
return NoResult; |
793 |
|
|
} |
794 |
|
|
}; |
795 |
|
|
mainPool.invoke(a); |
796 |
|
|
} |
797 |
|
|
|
798 |
jsr166 |
1.2 |
/** |
799 |
dl |
1.1 |
* invokeAll(tasks) with > 2 argument throws exception if any task does |
800 |
|
|
*/ |
801 |
|
|
public void testAbnormalInvokeAll3() { |
802 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
803 |
|
|
public Integer compute() { |
804 |
|
|
try { |
805 |
|
|
FibTask f = new FibTask(8); |
806 |
|
|
FailingFibTask g = new FailingFibTask(9); |
807 |
|
|
FibTask h = new FibTask(7); |
808 |
|
|
invokeAll(f, g, h); |
809 |
|
|
shouldThrow(); |
810 |
|
|
return NoResult; |
811 |
jsr166 |
1.2 |
} catch (FJException success) { |
812 |
dl |
1.1 |
} |
813 |
|
|
return NoResult; |
814 |
|
|
} |
815 |
|
|
}; |
816 |
|
|
mainPool.invoke(a); |
817 |
|
|
} |
818 |
|
|
|
819 |
jsr166 |
1.2 |
/** |
820 |
jsr166 |
1.3 |
* invokeAll(collection) throws exception if any task does |
821 |
dl |
1.1 |
*/ |
822 |
|
|
public void testAbnormalInvokeAllCollection() { |
823 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
824 |
|
|
public Integer compute() { |
825 |
|
|
try { |
826 |
|
|
FailingFibTask f = new FailingFibTask(8); |
827 |
|
|
FibTask g = new FibTask(9); |
828 |
|
|
FibTask h = new FibTask(7); |
829 |
|
|
HashSet set = new HashSet(); |
830 |
|
|
set.add(f); |
831 |
|
|
set.add(g); |
832 |
|
|
set.add(h); |
833 |
|
|
invokeAll(set); |
834 |
|
|
shouldThrow(); |
835 |
|
|
return NoResult; |
836 |
jsr166 |
1.2 |
} catch (FJException success) { |
837 |
dl |
1.1 |
} |
838 |
|
|
return NoResult; |
839 |
|
|
} |
840 |
|
|
}; |
841 |
|
|
mainPool.invoke(a); |
842 |
|
|
} |
843 |
|
|
|
844 |
jsr166 |
1.2 |
/** |
845 |
dl |
1.1 |
* tryUnfork returns true for most recent unexecuted task, |
846 |
|
|
* and suppresses execution |
847 |
|
|
*/ |
848 |
|
|
public void testTryUnfork() { |
849 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
850 |
|
|
public Integer compute() { |
851 |
|
|
FibTask g = new FibTask(9); |
852 |
|
|
g.fork(); |
853 |
|
|
FibTask f = new FibTask(8); |
854 |
|
|
f.fork(); |
855 |
|
|
threadAssertTrue(f.tryUnfork()); |
856 |
|
|
helpQuiesce(); |
857 |
|
|
threadAssertFalse(f.isDone()); |
858 |
|
|
threadAssertTrue(g.isDone()); |
859 |
|
|
return NoResult; |
860 |
|
|
} |
861 |
|
|
}; |
862 |
|
|
singletonPool.invoke(a); |
863 |
|
|
} |
864 |
|
|
|
865 |
jsr166 |
1.2 |
/** |
866 |
dl |
1.1 |
* getSurplusQueuedTaskCount returns > 0 when |
867 |
|
|
* there are more tasks than threads |
868 |
|
|
*/ |
869 |
|
|
public void testGetSurplusQueuedTaskCount() { |
870 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
871 |
|
|
public Integer compute() { |
872 |
|
|
FibTask h = new FibTask(7); |
873 |
|
|
h.fork(); |
874 |
|
|
FibTask g = new FibTask(9); |
875 |
|
|
g.fork(); |
876 |
|
|
FibTask f = new FibTask(8); |
877 |
|
|
f.fork(); |
878 |
|
|
threadAssertTrue(getSurplusQueuedTaskCount() > 0); |
879 |
|
|
helpQuiesce(); |
880 |
|
|
return NoResult; |
881 |
|
|
} |
882 |
|
|
}; |
883 |
|
|
singletonPool.invoke(a); |
884 |
|
|
} |
885 |
|
|
|
886 |
jsr166 |
1.2 |
/** |
887 |
dl |
1.1 |
* peekNextLocalTask returns most recent unexecuted task. |
888 |
|
|
*/ |
889 |
|
|
public void testPeekNextLocalTask() { |
890 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
891 |
|
|
public Integer compute() { |
892 |
|
|
FibTask g = new FibTask(9); |
893 |
|
|
g.fork(); |
894 |
|
|
FibTask f = new FibTask(8); |
895 |
|
|
f.fork(); |
896 |
|
|
threadAssertTrue(peekNextLocalTask() == f); |
897 |
|
|
f.join(); |
898 |
|
|
threadAssertTrue(f.isDone()); |
899 |
|
|
helpQuiesce(); |
900 |
|
|
return NoResult; |
901 |
|
|
} |
902 |
|
|
}; |
903 |
|
|
singletonPool.invoke(a); |
904 |
|
|
} |
905 |
|
|
|
906 |
jsr166 |
1.2 |
/** |
907 |
dl |
1.1 |
* pollNextLocalTask returns most recent unexecuted task |
908 |
|
|
* without executing it |
909 |
|
|
*/ |
910 |
|
|
public void testPollNextLocalTask() { |
911 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
912 |
|
|
public Integer compute() { |
913 |
|
|
FibTask g = new FibTask(9); |
914 |
|
|
g.fork(); |
915 |
|
|
FibTask f = new FibTask(8); |
916 |
|
|
f.fork(); |
917 |
|
|
threadAssertTrue(pollNextLocalTask() == f); |
918 |
|
|
helpQuiesce(); |
919 |
|
|
threadAssertFalse(f.isDone()); |
920 |
|
|
return NoResult; |
921 |
|
|
} |
922 |
|
|
}; |
923 |
|
|
singletonPool.invoke(a); |
924 |
|
|
} |
925 |
|
|
|
926 |
jsr166 |
1.2 |
/** |
927 |
dl |
1.1 |
* pollTask returns an unexecuted task |
928 |
|
|
* without executing it |
929 |
|
|
*/ |
930 |
|
|
public void testPollTask() { |
931 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
932 |
|
|
public Integer compute() { |
933 |
|
|
FibTask g = new FibTask(9); |
934 |
|
|
g.fork(); |
935 |
|
|
FibTask f = new FibTask(8); |
936 |
|
|
f.fork(); |
937 |
|
|
threadAssertTrue(pollTask() == f); |
938 |
|
|
helpQuiesce(); |
939 |
|
|
threadAssertFalse(f.isDone()); |
940 |
|
|
threadAssertTrue(g.isDone()); |
941 |
|
|
return NoResult; |
942 |
|
|
} |
943 |
|
|
}; |
944 |
|
|
singletonPool.invoke(a); |
945 |
|
|
} |
946 |
|
|
|
947 |
jsr166 |
1.2 |
/** |
948 |
dl |
1.1 |
* peekNextLocalTask returns least recent unexecuted task in async mode |
949 |
|
|
*/ |
950 |
|
|
public void testPeekNextLocalTaskAsync() { |
951 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
952 |
|
|
public Integer compute() { |
953 |
|
|
FibTask g = new FibTask(9); |
954 |
|
|
g.fork(); |
955 |
|
|
FibTask f = new FibTask(8); |
956 |
|
|
f.fork(); |
957 |
|
|
threadAssertTrue(peekNextLocalTask() == g); |
958 |
|
|
f.join(); |
959 |
|
|
helpQuiesce(); |
960 |
|
|
threadAssertTrue(f.isDone()); |
961 |
|
|
return NoResult; |
962 |
|
|
} |
963 |
|
|
}; |
964 |
|
|
asyncSingletonPool.invoke(a); |
965 |
|
|
} |
966 |
|
|
|
967 |
jsr166 |
1.2 |
/** |
968 |
dl |
1.1 |
* pollNextLocalTask returns least recent unexecuted task |
969 |
|
|
* without executing it, in async mode |
970 |
|
|
*/ |
971 |
|
|
public void testPollNextLocalTaskAsync() { |
972 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
973 |
|
|
public Integer compute() { |
974 |
|
|
FibTask g = new FibTask(9); |
975 |
|
|
g.fork(); |
976 |
|
|
FibTask f = new FibTask(8); |
977 |
|
|
f.fork(); |
978 |
|
|
threadAssertTrue(pollNextLocalTask() == g); |
979 |
|
|
helpQuiesce(); |
980 |
|
|
threadAssertTrue(f.isDone()); |
981 |
|
|
threadAssertFalse(g.isDone()); |
982 |
|
|
return NoResult; |
983 |
|
|
} |
984 |
|
|
}; |
985 |
|
|
asyncSingletonPool.invoke(a); |
986 |
|
|
} |
987 |
|
|
|
988 |
jsr166 |
1.2 |
/** |
989 |
dl |
1.1 |
* pollTask returns an unexecuted task |
990 |
|
|
* without executing it, in async mode |
991 |
|
|
*/ |
992 |
|
|
public void testPollTaskAsync() { |
993 |
|
|
RecursiveTask<Integer> a = new RecursiveTask<Integer>() { |
994 |
|
|
public Integer compute() { |
995 |
|
|
FibTask g = new FibTask(9); |
996 |
|
|
g.fork(); |
997 |
|
|
FibTask f = new FibTask(8); |
998 |
|
|
f.fork(); |
999 |
|
|
threadAssertTrue(pollTask() == g); |
1000 |
|
|
helpQuiesce(); |
1001 |
|
|
threadAssertTrue(f.isDone()); |
1002 |
|
|
threadAssertFalse(g.isDone()); |
1003 |
|
|
return NoResult; |
1004 |
|
|
} |
1005 |
|
|
}; |
1006 |
|
|
asyncSingletonPool.invoke(a); |
1007 |
|
|
} |
1008 |
|
|
|
1009 |
|
|
} |