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jsr166 |
1.1 |
/* |
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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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import junit.framework.*; |
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dl |
1.4 |
import java.util.concurrent.CancellationException; |
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import java.util.concurrent.ExecutionException; |
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jsr166 |
1.1 |
import java.util.concurrent.ForkJoinPool; |
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import java.util.concurrent.ForkJoinTask; |
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dl |
1.4 |
import java.util.concurrent.RecursiveAction; |
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import java.util.concurrent.CountedCompleter; |
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import java.util.concurrent.TimeoutException; |
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import static java.util.concurrent.TimeUnit.SECONDS; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import java.util.HashSet; |
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jsr166 |
1.1 |
|
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public class ForkJoinPool8Test extends JSR166TestCase { |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run(suite()); |
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} |
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public static Test suite() { |
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return new TestSuite(ForkJoinPool8Test.class); |
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} |
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/** |
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* Common pool exists and has expected parallelism. |
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*/ |
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public void testCommonPoolParallelism() { |
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assertEquals(ForkJoinPool.getCommonPoolParallelism(), |
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ForkJoinPool.commonPool().getParallelism()); |
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} |
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dl |
1.4 |
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/** |
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* Common pool cannot be shut down |
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*/ |
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public void testCommonPoolShutDown() { |
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assertFalse(ForkJoinPool.commonPool().isShutdown()); |
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assertFalse(ForkJoinPool.commonPool().isTerminating()); |
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assertFalse(ForkJoinPool.commonPool().isTerminated()); |
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ForkJoinPool.commonPool().shutdown(); |
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assertFalse(ForkJoinPool.commonPool().isShutdown()); |
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assertFalse(ForkJoinPool.commonPool().isTerminating()); |
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assertFalse(ForkJoinPool.commonPool().isTerminated()); |
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ForkJoinPool.commonPool().shutdownNow(); |
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assertFalse(ForkJoinPool.commonPool().isShutdown()); |
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assertFalse(ForkJoinPool.commonPool().isTerminating()); |
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assertFalse(ForkJoinPool.commonPool().isTerminated()); |
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} |
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/* |
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* All of the following test methods are adaptations of those for |
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* RecursiveAction and CountedCompleter, but with all actions |
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* executed in the common pool, generally implicitly via |
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* checkInvoke. |
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jsr166 |
1.5 |
*/ |
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dl |
1.4 |
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private void checkInvoke(ForkJoinTask a) { |
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checkNotDone(a); |
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assertNull(a.invoke()); |
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checkCompletedNormally(a); |
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} |
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void checkNotDone(ForkJoinTask 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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if (! ForkJoinTask.inForkJoinPool()) { |
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Thread.currentThread().interrupt(); |
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try { |
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a.get(); |
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shouldThrow(); |
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} catch (InterruptedException success) { |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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Thread.currentThread().interrupt(); |
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try { |
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a.get(5L, SECONDS); |
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shouldThrow(); |
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} catch (InterruptedException 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(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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void checkCompletedNormally(ForkJoinTask 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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assertNull(a.join()); |
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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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} |
114 |
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115 |
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void checkCancelled(ForkJoinTask 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()); |
120 |
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assertTrue(a.getException() instanceof CancellationException); |
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assertNull(a.getRawResult()); |
122 |
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try { |
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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); } |
128 |
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try { |
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a.get(); |
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shouldThrow(); |
132 |
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} catch (CancellationException success) { |
133 |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
134 |
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135 |
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try { |
136 |
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a.get(5L, SECONDS); |
137 |
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shouldThrow(); |
138 |
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} catch (CancellationException success) { |
139 |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
140 |
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} |
141 |
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void checkCompletedAbnormally(ForkJoinTask 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()); |
148 |
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assertNull(a.getRawResult()); |
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assertFalse(a.cancel(false)); |
150 |
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assertFalse(a.cancel(true)); |
151 |
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152 |
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try { |
153 |
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a.join(); |
154 |
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shouldThrow(); |
155 |
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} catch (Throwable expected) { |
156 |
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assertSame(expected.getClass(), t.getClass()); |
157 |
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} |
158 |
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159 |
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try { |
160 |
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a.get(); |
161 |
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shouldThrow(); |
162 |
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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); } |
165 |
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166 |
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try { |
167 |
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a.get(5L, SECONDS); |
168 |
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shouldThrow(); |
169 |
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} catch (ExecutionException success) { |
170 |
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assertSame(t.getClass(), success.getCause().getClass()); |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
172 |
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} |
173 |
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174 |
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public static final class FJException extends RuntimeException { |
175 |
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public FJException() { super(); } |
176 |
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public FJException(Throwable cause) { super(cause); } |
177 |
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} |
178 |
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179 |
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// A simple recursive action for testing |
180 |
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final class FibAction extends CheckedRecursiveAction { |
181 |
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final int number; |
182 |
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int result; |
183 |
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FibAction(int n) { number = n; } |
184 |
jsr166 |
1.9 |
protected void realCompute() { |
185 |
dl |
1.4 |
int n = number; |
186 |
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if (n <= 1) |
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result = n; |
188 |
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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); |
191 |
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invokeAll(f1, f2); |
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result = f1.result + f2.result; |
193 |
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} |
194 |
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} |
195 |
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} |
196 |
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197 |
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// A recursive action failing in base case |
198 |
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static final class FailingFibAction extends RecursiveAction { |
199 |
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final int number; |
200 |
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int result; |
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FailingFibAction(int n) { number = n; } |
202 |
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public void compute() { |
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int n = number; |
204 |
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if (n <= 1) |
205 |
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throw new FJException(); |
206 |
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else { |
207 |
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FailingFibAction f1 = new FailingFibAction(n - 1); |
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FailingFibAction f2 = new FailingFibAction(n - 2); |
209 |
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invokeAll(f1, f2); |
210 |
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result = f1.result + f2.result; |
211 |
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} |
212 |
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} |
213 |
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} |
214 |
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215 |
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/** |
216 |
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* invoke returns when task completes normally. |
217 |
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* isCompletedAbnormally and isCancelled return false for normally |
218 |
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* completed tasks. getRawResult of a RecursiveAction returns null; |
219 |
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*/ |
220 |
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public void testInvoke() { |
221 |
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RecursiveAction a = new CheckedRecursiveAction() { |
222 |
jsr166 |
1.9 |
protected void realCompute() { |
223 |
dl |
1.4 |
FibAction f = new FibAction(8); |
224 |
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assertNull(f.invoke()); |
225 |
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assertEquals(21, f.result); |
226 |
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checkCompletedNormally(f); |
227 |
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}}; |
228 |
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checkInvoke(a); |
229 |
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} |
230 |
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231 |
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/** |
232 |
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* quietlyInvoke task returns when task completes normally. |
233 |
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* isCompletedAbnormally and isCancelled return false for normally |
234 |
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* completed tasks |
235 |
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*/ |
236 |
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public void testQuietlyInvoke() { |
237 |
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RecursiveAction a = new CheckedRecursiveAction() { |
238 |
jsr166 |
1.9 |
protected void realCompute() { |
239 |
dl |
1.4 |
FibAction f = new FibAction(8); |
240 |
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f.quietlyInvoke(); |
241 |
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assertEquals(21, f.result); |
242 |
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checkCompletedNormally(f); |
243 |
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}}; |
244 |
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checkInvoke(a); |
245 |
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} |
246 |
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247 |
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/** |
248 |
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* join of a forked task returns when task completes |
249 |
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*/ |
250 |
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public void testForkJoin() { |
251 |
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RecursiveAction a = new CheckedRecursiveAction() { |
252 |
jsr166 |
1.9 |
protected void realCompute() { |
253 |
dl |
1.4 |
FibAction f = new FibAction(8); |
254 |
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assertSame(f, f.fork()); |
255 |
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assertNull(f.join()); |
256 |
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assertEquals(21, f.result); |
257 |
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checkCompletedNormally(f); |
258 |
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}}; |
259 |
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checkInvoke(a); |
260 |
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} |
261 |
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262 |
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/** |
263 |
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* join/quietlyJoin of a forked task succeeds in the presence of interrupts |
264 |
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*/ |
265 |
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public void testJoinIgnoresInterrupts() { |
266 |
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RecursiveAction a = new CheckedRecursiveAction() { |
267 |
jsr166 |
1.9 |
protected void realCompute() { |
268 |
dl |
1.4 |
FibAction f = new FibAction(8); |
269 |
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final Thread myself = Thread.currentThread(); |
270 |
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271 |
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// test join() |
272 |
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assertSame(f, f.fork()); |
273 |
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myself.interrupt(); |
274 |
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assertTrue(myself.isInterrupted()); |
275 |
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assertNull(f.join()); |
276 |
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Thread.interrupted(); |
277 |
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assertEquals(21, f.result); |
278 |
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checkCompletedNormally(f); |
279 |
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280 |
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f = new FibAction(8); |
281 |
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f.cancel(true); |
282 |
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assertSame(f, f.fork()); |
283 |
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myself.interrupt(); |
284 |
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assertTrue(myself.isInterrupted()); |
285 |
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try { |
286 |
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f.join(); |
287 |
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shouldThrow(); |
288 |
|
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} catch (CancellationException success) { |
289 |
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Thread.interrupted(); |
290 |
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checkCancelled(f); |
291 |
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} |
292 |
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293 |
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f = new FibAction(8); |
294 |
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f.completeExceptionally(new FJException()); |
295 |
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assertSame(f, f.fork()); |
296 |
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myself.interrupt(); |
297 |
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assertTrue(myself.isInterrupted()); |
298 |
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try { |
299 |
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f.join(); |
300 |
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shouldThrow(); |
301 |
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} catch (FJException success) { |
302 |
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Thread.interrupted(); |
303 |
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checkCompletedAbnormally(f, success); |
304 |
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} |
305 |
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306 |
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// test quietlyJoin() |
307 |
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f = new FibAction(8); |
308 |
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assertSame(f, f.fork()); |
309 |
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myself.interrupt(); |
310 |
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assertTrue(myself.isInterrupted()); |
311 |
|
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f.quietlyJoin(); |
312 |
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Thread.interrupted(); |
313 |
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assertEquals(21, f.result); |
314 |
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checkCompletedNormally(f); |
315 |
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|
316 |
|
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f = new FibAction(8); |
317 |
|
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f.cancel(true); |
318 |
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assertSame(f, f.fork()); |
319 |
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myself.interrupt(); |
320 |
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assertTrue(myself.isInterrupted()); |
321 |
|
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f.quietlyJoin(); |
322 |
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Thread.interrupted(); |
323 |
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checkCancelled(f); |
324 |
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325 |
|
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f = new FibAction(8); |
326 |
|
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f.completeExceptionally(new FJException()); |
327 |
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assertSame(f, f.fork()); |
328 |
|
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myself.interrupt(); |
329 |
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assertTrue(myself.isInterrupted()); |
330 |
|
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f.quietlyJoin(); |
331 |
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Thread.interrupted(); |
332 |
|
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checkCompletedAbnormally(f, f.getException()); |
333 |
|
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}}; |
334 |
|
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checkInvoke(a); |
335 |
|
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a.reinitialize(); |
336 |
|
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checkInvoke(a); |
337 |
|
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} |
338 |
|
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|
339 |
|
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/** |
340 |
|
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* get of a forked task returns when task completes |
341 |
|
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*/ |
342 |
|
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public void testForkGet() { |
343 |
|
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RecursiveAction a = new CheckedRecursiveAction() { |
344 |
jsr166 |
1.9 |
protected void realCompute() throws Exception { |
345 |
dl |
1.4 |
FibAction f = new FibAction(8); |
346 |
|
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assertSame(f, f.fork()); |
347 |
|
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assertNull(f.get()); |
348 |
|
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assertEquals(21, f.result); |
349 |
|
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checkCompletedNormally(f); |
350 |
|
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}}; |
351 |
|
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checkInvoke(a); |
352 |
|
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} |
353 |
|
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|
354 |
|
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/** |
355 |
|
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* timed get of a forked task returns when task completes |
356 |
|
|
*/ |
357 |
|
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public void testForkTimedGet() { |
358 |
|
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RecursiveAction a = new CheckedRecursiveAction() { |
359 |
jsr166 |
1.9 |
protected void realCompute() throws Exception { |
360 |
dl |
1.4 |
FibAction f = new FibAction(8); |
361 |
|
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assertSame(f, f.fork()); |
362 |
|
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assertNull(f.get(5L, SECONDS)); |
363 |
|
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assertEquals(21, f.result); |
364 |
|
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checkCompletedNormally(f); |
365 |
|
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}}; |
366 |
|
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checkInvoke(a); |
367 |
|
|
} |
368 |
|
|
|
369 |
|
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/** |
370 |
|
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* timed get with null time unit throws NPE |
371 |
|
|
*/ |
372 |
|
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public void testForkTimedGetNPE() { |
373 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
374 |
jsr166 |
1.9 |
protected void realCompute() throws Exception { |
375 |
dl |
1.4 |
FibAction f = new FibAction(8); |
376 |
|
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assertSame(f, f.fork()); |
377 |
|
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try { |
378 |
|
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f.get(5L, null); |
379 |
|
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shouldThrow(); |
380 |
|
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} catch (NullPointerException success) {} |
381 |
|
|
}}; |
382 |
|
|
checkInvoke(a); |
383 |
|
|
} |
384 |
|
|
|
385 |
|
|
/** |
386 |
|
|
* quietlyJoin of a forked task returns when task completes |
387 |
|
|
*/ |
388 |
|
|
public void testForkQuietlyJoin() { |
389 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
390 |
jsr166 |
1.9 |
protected void realCompute() { |
391 |
dl |
1.4 |
FibAction f = new FibAction(8); |
392 |
|
|
assertSame(f, f.fork()); |
393 |
|
|
f.quietlyJoin(); |
394 |
|
|
assertEquals(21, f.result); |
395 |
|
|
checkCompletedNormally(f); |
396 |
|
|
}}; |
397 |
|
|
checkInvoke(a); |
398 |
|
|
} |
399 |
|
|
|
400 |
|
|
/** |
401 |
|
|
* invoke task throws exception when task completes abnormally |
402 |
|
|
*/ |
403 |
|
|
public void testAbnormalInvoke() { |
404 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
405 |
jsr166 |
1.9 |
protected void realCompute() { |
406 |
dl |
1.4 |
FailingFibAction f = new FailingFibAction(8); |
407 |
|
|
try { |
408 |
|
|
f.invoke(); |
409 |
|
|
shouldThrow(); |
410 |
|
|
} catch (FJException success) { |
411 |
|
|
checkCompletedAbnormally(f, success); |
412 |
|
|
} |
413 |
|
|
}}; |
414 |
|
|
checkInvoke(a); |
415 |
|
|
} |
416 |
|
|
|
417 |
|
|
/** |
418 |
|
|
* quietlyInvoke task returns when task completes abnormally |
419 |
|
|
*/ |
420 |
|
|
public void testAbnormalQuietlyInvoke() { |
421 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
422 |
jsr166 |
1.9 |
protected void realCompute() { |
423 |
dl |
1.4 |
FailingFibAction f = new FailingFibAction(8); |
424 |
|
|
f.quietlyInvoke(); |
425 |
|
|
assertTrue(f.getException() instanceof FJException); |
426 |
|
|
checkCompletedAbnormally(f, f.getException()); |
427 |
|
|
}}; |
428 |
|
|
checkInvoke(a); |
429 |
|
|
} |
430 |
|
|
|
431 |
|
|
/** |
432 |
|
|
* join of a forked task throws exception when task completes abnormally |
433 |
|
|
*/ |
434 |
|
|
public void testAbnormalForkJoin() { |
435 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
436 |
jsr166 |
1.9 |
protected void realCompute() { |
437 |
dl |
1.4 |
FailingFibAction f = new FailingFibAction(8); |
438 |
|
|
assertSame(f, f.fork()); |
439 |
|
|
try { |
440 |
|
|
f.join(); |
441 |
|
|
shouldThrow(); |
442 |
|
|
} catch (FJException success) { |
443 |
|
|
checkCompletedAbnormally(f, success); |
444 |
|
|
} |
445 |
|
|
}}; |
446 |
|
|
checkInvoke(a); |
447 |
|
|
} |
448 |
|
|
|
449 |
|
|
/** |
450 |
|
|
* get of a forked task throws exception when task completes abnormally |
451 |
|
|
*/ |
452 |
|
|
public void testAbnormalForkGet() { |
453 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
454 |
jsr166 |
1.9 |
protected void realCompute() throws Exception { |
455 |
dl |
1.4 |
FailingFibAction f = new FailingFibAction(8); |
456 |
|
|
assertSame(f, f.fork()); |
457 |
|
|
try { |
458 |
|
|
f.get(); |
459 |
|
|
shouldThrow(); |
460 |
|
|
} catch (ExecutionException success) { |
461 |
|
|
Throwable cause = success.getCause(); |
462 |
|
|
assertTrue(cause instanceof FJException); |
463 |
|
|
checkCompletedAbnormally(f, cause); |
464 |
|
|
} |
465 |
|
|
}}; |
466 |
|
|
checkInvoke(a); |
467 |
|
|
} |
468 |
|
|
|
469 |
|
|
/** |
470 |
|
|
* timed get of a forked task throws exception when task completes abnormally |
471 |
|
|
*/ |
472 |
|
|
public void testAbnormalForkTimedGet() { |
473 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
474 |
jsr166 |
1.9 |
protected void realCompute() throws Exception { |
475 |
dl |
1.4 |
FailingFibAction f = new FailingFibAction(8); |
476 |
|
|
assertSame(f, f.fork()); |
477 |
|
|
try { |
478 |
jsr166 |
1.28 |
f.get(5L, SECONDS); |
479 |
dl |
1.4 |
shouldThrow(); |
480 |
|
|
} catch (ExecutionException success) { |
481 |
|
|
Throwable cause = success.getCause(); |
482 |
|
|
assertTrue(cause instanceof FJException); |
483 |
|
|
checkCompletedAbnormally(f, cause); |
484 |
|
|
} |
485 |
|
|
}}; |
486 |
|
|
checkInvoke(a); |
487 |
|
|
} |
488 |
|
|
|
489 |
|
|
/** |
490 |
|
|
* quietlyJoin of a forked task returns when task completes abnormally |
491 |
|
|
*/ |
492 |
|
|
public void testAbnormalForkQuietlyJoin() { |
493 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
494 |
jsr166 |
1.9 |
protected void realCompute() { |
495 |
dl |
1.4 |
FailingFibAction f = new FailingFibAction(8); |
496 |
|
|
assertSame(f, f.fork()); |
497 |
|
|
f.quietlyJoin(); |
498 |
|
|
assertTrue(f.getException() instanceof FJException); |
499 |
|
|
checkCompletedAbnormally(f, f.getException()); |
500 |
|
|
}}; |
501 |
|
|
checkInvoke(a); |
502 |
|
|
} |
503 |
|
|
|
504 |
|
|
/** |
505 |
|
|
* invoke task throws exception when task cancelled |
506 |
|
|
*/ |
507 |
|
|
public void testCancelledInvoke() { |
508 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
509 |
jsr166 |
1.9 |
protected void realCompute() { |
510 |
dl |
1.4 |
FibAction f = new FibAction(8); |
511 |
|
|
assertTrue(f.cancel(true)); |
512 |
|
|
try { |
513 |
|
|
f.invoke(); |
514 |
|
|
shouldThrow(); |
515 |
|
|
} catch (CancellationException success) { |
516 |
|
|
checkCancelled(f); |
517 |
|
|
} |
518 |
|
|
}}; |
519 |
|
|
checkInvoke(a); |
520 |
|
|
} |
521 |
|
|
|
522 |
|
|
/** |
523 |
|
|
* join of a forked task throws exception when task cancelled |
524 |
|
|
*/ |
525 |
|
|
public void testCancelledForkJoin() { |
526 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
527 |
jsr166 |
1.9 |
protected void realCompute() { |
528 |
dl |
1.4 |
FibAction f = new FibAction(8); |
529 |
|
|
assertTrue(f.cancel(true)); |
530 |
|
|
assertSame(f, f.fork()); |
531 |
|
|
try { |
532 |
|
|
f.join(); |
533 |
|
|
shouldThrow(); |
534 |
|
|
} catch (CancellationException success) { |
535 |
|
|
checkCancelled(f); |
536 |
|
|
} |
537 |
|
|
}}; |
538 |
|
|
checkInvoke(a); |
539 |
|
|
} |
540 |
|
|
|
541 |
|
|
/** |
542 |
|
|
* get of a forked task throws exception when task cancelled |
543 |
|
|
*/ |
544 |
|
|
public void testCancelledForkGet() { |
545 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
546 |
jsr166 |
1.9 |
protected void realCompute() throws Exception { |
547 |
dl |
1.4 |
FibAction f = new FibAction(8); |
548 |
|
|
assertTrue(f.cancel(true)); |
549 |
|
|
assertSame(f, f.fork()); |
550 |
|
|
try { |
551 |
|
|
f.get(); |
552 |
|
|
shouldThrow(); |
553 |
|
|
} catch (CancellationException success) { |
554 |
|
|
checkCancelled(f); |
555 |
|
|
} |
556 |
|
|
}}; |
557 |
|
|
checkInvoke(a); |
558 |
|
|
} |
559 |
|
|
|
560 |
|
|
/** |
561 |
|
|
* timed get of a forked task throws exception when task cancelled |
562 |
|
|
*/ |
563 |
|
|
public void testCancelledForkTimedGet() { |
564 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
565 |
jsr166 |
1.9 |
protected void realCompute() throws Exception { |
566 |
dl |
1.4 |
FibAction f = new FibAction(8); |
567 |
|
|
assertTrue(f.cancel(true)); |
568 |
|
|
assertSame(f, f.fork()); |
569 |
|
|
try { |
570 |
|
|
f.get(5L, SECONDS); |
571 |
|
|
shouldThrow(); |
572 |
|
|
} catch (CancellationException success) { |
573 |
|
|
checkCancelled(f); |
574 |
|
|
} |
575 |
|
|
}}; |
576 |
|
|
checkInvoke(a); |
577 |
|
|
} |
578 |
|
|
|
579 |
|
|
/** |
580 |
|
|
* quietlyJoin of a forked task returns when task cancelled |
581 |
|
|
*/ |
582 |
|
|
public void testCancelledForkQuietlyJoin() { |
583 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
584 |
jsr166 |
1.9 |
protected void realCompute() { |
585 |
dl |
1.4 |
FibAction f = new FibAction(8); |
586 |
|
|
assertTrue(f.cancel(true)); |
587 |
|
|
assertSame(f, f.fork()); |
588 |
|
|
f.quietlyJoin(); |
589 |
|
|
checkCancelled(f); |
590 |
|
|
}}; |
591 |
|
|
checkInvoke(a); |
592 |
|
|
} |
593 |
|
|
|
594 |
|
|
/** |
595 |
|
|
* inForkJoinPool of non-FJ task returns false |
596 |
|
|
*/ |
597 |
|
|
public void testInForkJoinPool2() { |
598 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
599 |
jsr166 |
1.9 |
protected void realCompute() { |
600 |
dl |
1.4 |
assertFalse(inForkJoinPool()); |
601 |
|
|
}}; |
602 |
|
|
assertNull(a.invoke()); |
603 |
|
|
} |
604 |
|
|
|
605 |
|
|
/** |
606 |
|
|
* A reinitialized normally completed task may be re-invoked |
607 |
|
|
*/ |
608 |
|
|
public void testReinitialize() { |
609 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
610 |
jsr166 |
1.9 |
protected void realCompute() { |
611 |
dl |
1.4 |
FibAction f = new FibAction(8); |
612 |
|
|
checkNotDone(f); |
613 |
|
|
|
614 |
|
|
for (int i = 0; i < 3; i++) { |
615 |
|
|
assertNull(f.invoke()); |
616 |
|
|
assertEquals(21, f.result); |
617 |
|
|
checkCompletedNormally(f); |
618 |
|
|
f.reinitialize(); |
619 |
|
|
checkNotDone(f); |
620 |
|
|
} |
621 |
|
|
}}; |
622 |
|
|
checkInvoke(a); |
623 |
|
|
} |
624 |
|
|
|
625 |
|
|
/** |
626 |
|
|
* A reinitialized abnormally completed task may be re-invoked |
627 |
|
|
*/ |
628 |
|
|
public void testReinitializeAbnormal() { |
629 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
630 |
jsr166 |
1.9 |
protected void realCompute() { |
631 |
dl |
1.4 |
FailingFibAction f = new FailingFibAction(8); |
632 |
|
|
checkNotDone(f); |
633 |
|
|
|
634 |
|
|
for (int i = 0; i < 3; i++) { |
635 |
|
|
try { |
636 |
|
|
f.invoke(); |
637 |
|
|
shouldThrow(); |
638 |
|
|
} catch (FJException success) { |
639 |
|
|
checkCompletedAbnormally(f, success); |
640 |
|
|
} |
641 |
|
|
f.reinitialize(); |
642 |
|
|
checkNotDone(f); |
643 |
|
|
} |
644 |
|
|
}}; |
645 |
|
|
checkInvoke(a); |
646 |
|
|
} |
647 |
|
|
|
648 |
|
|
/** |
649 |
|
|
* invoke task throws exception after invoking completeExceptionally |
650 |
|
|
*/ |
651 |
|
|
public void testCompleteExceptionally() { |
652 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
653 |
jsr166 |
1.9 |
protected void realCompute() { |
654 |
dl |
1.4 |
FibAction f = new FibAction(8); |
655 |
|
|
f.completeExceptionally(new FJException()); |
656 |
|
|
try { |
657 |
|
|
f.invoke(); |
658 |
|
|
shouldThrow(); |
659 |
|
|
} catch (FJException success) { |
660 |
|
|
checkCompletedAbnormally(f, success); |
661 |
|
|
} |
662 |
|
|
}}; |
663 |
|
|
checkInvoke(a); |
664 |
|
|
} |
665 |
|
|
|
666 |
|
|
/** |
667 |
|
|
* invoke task suppresses execution invoking complete |
668 |
|
|
*/ |
669 |
|
|
public void testComplete() { |
670 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
671 |
jsr166 |
1.9 |
protected void realCompute() { |
672 |
dl |
1.4 |
FibAction f = new FibAction(8); |
673 |
|
|
f.complete(null); |
674 |
|
|
assertNull(f.invoke()); |
675 |
|
|
assertEquals(0, f.result); |
676 |
|
|
checkCompletedNormally(f); |
677 |
|
|
}}; |
678 |
|
|
checkInvoke(a); |
679 |
|
|
} |
680 |
|
|
|
681 |
|
|
/** |
682 |
|
|
* invokeAll(t1, t2) invokes all task arguments |
683 |
|
|
*/ |
684 |
|
|
public void testInvokeAll2() { |
685 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
686 |
jsr166 |
1.9 |
protected void realCompute() { |
687 |
dl |
1.4 |
FibAction f = new FibAction(8); |
688 |
|
|
FibAction g = new FibAction(9); |
689 |
|
|
invokeAll(f, g); |
690 |
|
|
checkCompletedNormally(f); |
691 |
|
|
assertEquals(21, f.result); |
692 |
|
|
checkCompletedNormally(g); |
693 |
|
|
assertEquals(34, g.result); |
694 |
|
|
}}; |
695 |
|
|
checkInvoke(a); |
696 |
|
|
} |
697 |
|
|
|
698 |
|
|
/** |
699 |
|
|
* invokeAll(tasks) with 1 argument invokes task |
700 |
|
|
*/ |
701 |
|
|
public void testInvokeAll1() { |
702 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
703 |
jsr166 |
1.9 |
protected void realCompute() { |
704 |
dl |
1.4 |
FibAction f = new FibAction(8); |
705 |
|
|
invokeAll(f); |
706 |
|
|
checkCompletedNormally(f); |
707 |
|
|
assertEquals(21, f.result); |
708 |
|
|
}}; |
709 |
|
|
checkInvoke(a); |
710 |
|
|
} |
711 |
|
|
|
712 |
|
|
/** |
713 |
|
|
* invokeAll(tasks) with > 2 argument invokes tasks |
714 |
|
|
*/ |
715 |
|
|
public void testInvokeAll3() { |
716 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
717 |
jsr166 |
1.9 |
protected void realCompute() { |
718 |
dl |
1.4 |
FibAction f = new FibAction(8); |
719 |
|
|
FibAction g = new FibAction(9); |
720 |
|
|
FibAction h = new FibAction(7); |
721 |
|
|
invokeAll(f, g, h); |
722 |
|
|
assertTrue(f.isDone()); |
723 |
|
|
assertTrue(g.isDone()); |
724 |
|
|
assertTrue(h.isDone()); |
725 |
|
|
checkCompletedNormally(f); |
726 |
|
|
assertEquals(21, f.result); |
727 |
|
|
checkCompletedNormally(g); |
728 |
|
|
assertEquals(34, g.result); |
729 |
|
|
checkCompletedNormally(g); |
730 |
|
|
assertEquals(13, h.result); |
731 |
|
|
}}; |
732 |
|
|
checkInvoke(a); |
733 |
|
|
} |
734 |
|
|
|
735 |
|
|
/** |
736 |
|
|
* invokeAll(collection) invokes all tasks in the collection |
737 |
|
|
*/ |
738 |
|
|
public void testInvokeAllCollection() { |
739 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
740 |
jsr166 |
1.9 |
protected void realCompute() { |
741 |
dl |
1.4 |
FibAction f = new FibAction(8); |
742 |
|
|
FibAction g = new FibAction(9); |
743 |
|
|
FibAction h = new FibAction(7); |
744 |
|
|
HashSet set = new HashSet(); |
745 |
|
|
set.add(f); |
746 |
|
|
set.add(g); |
747 |
|
|
set.add(h); |
748 |
|
|
invokeAll(set); |
749 |
|
|
assertTrue(f.isDone()); |
750 |
|
|
assertTrue(g.isDone()); |
751 |
|
|
assertTrue(h.isDone()); |
752 |
|
|
checkCompletedNormally(f); |
753 |
|
|
assertEquals(21, f.result); |
754 |
|
|
checkCompletedNormally(g); |
755 |
|
|
assertEquals(34, g.result); |
756 |
|
|
checkCompletedNormally(g); |
757 |
|
|
assertEquals(13, h.result); |
758 |
|
|
}}; |
759 |
|
|
checkInvoke(a); |
760 |
|
|
} |
761 |
|
|
|
762 |
|
|
/** |
763 |
|
|
* invokeAll(tasks) with any null task throws NPE |
764 |
|
|
*/ |
765 |
|
|
public void testInvokeAllNPE() { |
766 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
767 |
jsr166 |
1.9 |
protected void realCompute() { |
768 |
dl |
1.4 |
FibAction f = new FibAction(8); |
769 |
|
|
FibAction g = new FibAction(9); |
770 |
|
|
FibAction h = null; |
771 |
|
|
try { |
772 |
|
|
invokeAll(f, g, h); |
773 |
|
|
shouldThrow(); |
774 |
|
|
} catch (NullPointerException success) {} |
775 |
|
|
}}; |
776 |
|
|
checkInvoke(a); |
777 |
|
|
} |
778 |
|
|
|
779 |
|
|
/** |
780 |
|
|
* invokeAll(t1, t2) throw exception if any task does |
781 |
|
|
*/ |
782 |
|
|
public void testAbnormalInvokeAll2() { |
783 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
784 |
jsr166 |
1.9 |
protected void realCompute() { |
785 |
dl |
1.4 |
FibAction f = new FibAction(8); |
786 |
|
|
FailingFibAction g = new FailingFibAction(9); |
787 |
|
|
try { |
788 |
|
|
invokeAll(f, g); |
789 |
|
|
shouldThrow(); |
790 |
|
|
} catch (FJException success) { |
791 |
|
|
checkCompletedAbnormally(g, success); |
792 |
|
|
} |
793 |
|
|
}}; |
794 |
|
|
checkInvoke(a); |
795 |
|
|
} |
796 |
|
|
|
797 |
|
|
/** |
798 |
|
|
* invokeAll(tasks) with 1 argument throws exception if task does |
799 |
|
|
*/ |
800 |
|
|
public void testAbnormalInvokeAll1() { |
801 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
802 |
jsr166 |
1.9 |
protected void realCompute() { |
803 |
dl |
1.4 |
FailingFibAction g = new FailingFibAction(9); |
804 |
|
|
try { |
805 |
|
|
invokeAll(g); |
806 |
|
|
shouldThrow(); |
807 |
|
|
} catch (FJException success) { |
808 |
|
|
checkCompletedAbnormally(g, success); |
809 |
|
|
} |
810 |
|
|
}}; |
811 |
|
|
checkInvoke(a); |
812 |
|
|
} |
813 |
|
|
|
814 |
|
|
/** |
815 |
|
|
* invokeAll(tasks) with > 2 argument throws exception if any task does |
816 |
|
|
*/ |
817 |
|
|
public void testAbnormalInvokeAll3() { |
818 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
819 |
jsr166 |
1.9 |
protected void realCompute() { |
820 |
dl |
1.4 |
FibAction f = new FibAction(8); |
821 |
|
|
FailingFibAction g = new FailingFibAction(9); |
822 |
|
|
FibAction h = new FibAction(7); |
823 |
|
|
try { |
824 |
|
|
invokeAll(f, g, h); |
825 |
|
|
shouldThrow(); |
826 |
|
|
} catch (FJException success) { |
827 |
|
|
checkCompletedAbnormally(g, success); |
828 |
|
|
} |
829 |
|
|
}}; |
830 |
|
|
checkInvoke(a); |
831 |
|
|
} |
832 |
|
|
|
833 |
|
|
/** |
834 |
|
|
* invokeAll(collection) throws exception if any task does |
835 |
|
|
*/ |
836 |
|
|
public void testAbnormalInvokeAllCollection() { |
837 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
838 |
jsr166 |
1.9 |
protected void realCompute() { |
839 |
dl |
1.4 |
FailingFibAction f = new FailingFibAction(8); |
840 |
|
|
FibAction g = new FibAction(9); |
841 |
|
|
FibAction h = new FibAction(7); |
842 |
|
|
HashSet set = new HashSet(); |
843 |
|
|
set.add(f); |
844 |
|
|
set.add(g); |
845 |
|
|
set.add(h); |
846 |
|
|
try { |
847 |
|
|
invokeAll(set); |
848 |
|
|
shouldThrow(); |
849 |
|
|
} catch (FJException success) { |
850 |
|
|
checkCompletedAbnormally(f, success); |
851 |
|
|
} |
852 |
|
|
}}; |
853 |
|
|
checkInvoke(a); |
854 |
|
|
} |
855 |
|
|
|
856 |
|
|
// CountedCompleter versions |
857 |
|
|
|
858 |
jsr166 |
1.5 |
abstract static class CCF extends CountedCompleter { |
859 |
dl |
1.4 |
int number; |
860 |
|
|
int rnumber; |
861 |
|
|
|
862 |
|
|
public CCF(CountedCompleter parent, int n) { |
863 |
|
|
super(parent, 1); |
864 |
|
|
this.number = n; |
865 |
|
|
} |
866 |
|
|
|
867 |
|
|
public final void compute() { |
868 |
|
|
CountedCompleter p; |
869 |
|
|
CCF f = this; |
870 |
|
|
int n = number; |
871 |
|
|
while (n >= 2) { |
872 |
|
|
new RCCF(f, n - 2).fork(); |
873 |
|
|
f = new LCCF(f, --n); |
874 |
|
|
} |
875 |
|
|
f.number = n; |
876 |
|
|
f.onCompletion(f); |
877 |
|
|
if ((p = f.getCompleter()) != null) |
878 |
|
|
p.tryComplete(); |
879 |
jsr166 |
1.5 |
else |
880 |
|
|
f.quietlyComplete(); |
881 |
dl |
1.4 |
} |
882 |
|
|
} |
883 |
|
|
|
884 |
|
|
static final class LCCF extends CCF { |
885 |
|
|
public LCCF(CountedCompleter parent, int n) { |
886 |
|
|
super(parent, n); |
887 |
|
|
} |
888 |
|
|
public final void onCompletion(CountedCompleter caller) { |
889 |
|
|
CCF p = (CCF)getCompleter(); |
890 |
|
|
int n = number + rnumber; |
891 |
|
|
if (p != null) |
892 |
|
|
p.number = n; |
893 |
|
|
else |
894 |
|
|
number = n; |
895 |
|
|
} |
896 |
|
|
} |
897 |
|
|
static final class RCCF extends CCF { |
898 |
|
|
public RCCF(CountedCompleter parent, int n) { |
899 |
|
|
super(parent, n); |
900 |
|
|
} |
901 |
|
|
public final void onCompletion(CountedCompleter caller) { |
902 |
|
|
CCF p = (CCF)getCompleter(); |
903 |
|
|
int n = number + rnumber; |
904 |
|
|
if (p != null) |
905 |
|
|
p.rnumber = n; |
906 |
|
|
else |
907 |
|
|
number = n; |
908 |
|
|
} |
909 |
|
|
} |
910 |
|
|
|
911 |
|
|
// Version of CCF with forced failure in left completions |
912 |
jsr166 |
1.5 |
abstract static class FailingCCF extends CountedCompleter { |
913 |
dl |
1.4 |
int number; |
914 |
|
|
int rnumber; |
915 |
|
|
|
916 |
|
|
public FailingCCF(CountedCompleter parent, int n) { |
917 |
|
|
super(parent, 1); |
918 |
|
|
this.number = n; |
919 |
|
|
} |
920 |
|
|
|
921 |
|
|
public final void compute() { |
922 |
|
|
CountedCompleter p; |
923 |
|
|
FailingCCF f = this; |
924 |
|
|
int n = number; |
925 |
|
|
while (n >= 2) { |
926 |
|
|
new RFCCF(f, n - 2).fork(); |
927 |
|
|
f = new LFCCF(f, --n); |
928 |
|
|
} |
929 |
|
|
f.number = n; |
930 |
|
|
f.onCompletion(f); |
931 |
|
|
if ((p = f.getCompleter()) != null) |
932 |
|
|
p.tryComplete(); |
933 |
jsr166 |
1.5 |
else |
934 |
|
|
f.quietlyComplete(); |
935 |
dl |
1.4 |
} |
936 |
|
|
} |
937 |
|
|
|
938 |
|
|
static final class LFCCF extends FailingCCF { |
939 |
|
|
public LFCCF(CountedCompleter parent, int n) { |
940 |
|
|
super(parent, n); |
941 |
|
|
} |
942 |
|
|
public final void onCompletion(CountedCompleter caller) { |
943 |
|
|
FailingCCF p = (FailingCCF)getCompleter(); |
944 |
|
|
int n = number + rnumber; |
945 |
|
|
if (p != null) |
946 |
|
|
p.number = n; |
947 |
|
|
else |
948 |
|
|
number = n; |
949 |
|
|
} |
950 |
|
|
} |
951 |
|
|
static final class RFCCF extends FailingCCF { |
952 |
|
|
public RFCCF(CountedCompleter parent, int n) { |
953 |
|
|
super(parent, n); |
954 |
|
|
} |
955 |
|
|
public final void onCompletion(CountedCompleter caller) { |
956 |
|
|
completeExceptionally(new FJException()); |
957 |
|
|
} |
958 |
|
|
} |
959 |
jsr166 |
1.5 |
|
960 |
dl |
1.4 |
/** |
961 |
|
|
* invoke returns when task completes normally. |
962 |
|
|
* isCompletedAbnormally and isCancelled return false for normally |
963 |
|
|
* completed tasks; getRawResult returns null. |
964 |
|
|
*/ |
965 |
|
|
public void testInvokeCC() { |
966 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
967 |
|
|
protected void realCompute() { |
968 |
dl |
1.4 |
CCF f = new LCCF(null, 8); |
969 |
|
|
assertNull(f.invoke()); |
970 |
|
|
assertEquals(21, f.number); |
971 |
|
|
checkCompletedNormally(f); |
972 |
|
|
}}; |
973 |
|
|
checkInvoke(a); |
974 |
|
|
} |
975 |
|
|
|
976 |
|
|
/** |
977 |
|
|
* quietlyInvoke task returns when task completes normally. |
978 |
|
|
* isCompletedAbnormally and isCancelled return false for normally |
979 |
|
|
* completed tasks |
980 |
|
|
*/ |
981 |
|
|
public void testQuietlyInvokeCC() { |
982 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
983 |
|
|
protected void realCompute() { |
984 |
dl |
1.4 |
CCF f = new LCCF(null, 8); |
985 |
|
|
f.quietlyInvoke(); |
986 |
|
|
assertEquals(21, f.number); |
987 |
|
|
checkCompletedNormally(f); |
988 |
|
|
}}; |
989 |
|
|
checkInvoke(a); |
990 |
|
|
} |
991 |
|
|
|
992 |
|
|
/** |
993 |
|
|
* join of a forked task returns when task completes |
994 |
|
|
*/ |
995 |
|
|
public void testForkJoinCC() { |
996 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
997 |
|
|
protected void realCompute() { |
998 |
dl |
1.4 |
CCF f = new LCCF(null, 8); |
999 |
|
|
assertSame(f, f.fork()); |
1000 |
|
|
assertNull(f.join()); |
1001 |
|
|
assertEquals(21, f.number); |
1002 |
|
|
checkCompletedNormally(f); |
1003 |
|
|
}}; |
1004 |
|
|
checkInvoke(a); |
1005 |
|
|
} |
1006 |
|
|
|
1007 |
|
|
/** |
1008 |
|
|
* get of a forked task returns when task completes |
1009 |
|
|
*/ |
1010 |
|
|
public void testForkGetCC() { |
1011 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1012 |
|
|
protected void realCompute() throws Exception { |
1013 |
dl |
1.4 |
CCF f = new LCCF(null, 8); |
1014 |
|
|
assertSame(f, f.fork()); |
1015 |
|
|
assertNull(f.get()); |
1016 |
|
|
assertEquals(21, f.number); |
1017 |
|
|
checkCompletedNormally(f); |
1018 |
|
|
}}; |
1019 |
|
|
checkInvoke(a); |
1020 |
|
|
} |
1021 |
|
|
|
1022 |
|
|
/** |
1023 |
|
|
* timed get of a forked task returns when task completes |
1024 |
|
|
*/ |
1025 |
|
|
public void testForkTimedGetCC() { |
1026 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1027 |
|
|
protected void realCompute() throws Exception { |
1028 |
dl |
1.4 |
CCF f = new LCCF(null, 8); |
1029 |
|
|
assertSame(f, f.fork()); |
1030 |
|
|
assertNull(f.get(LONG_DELAY_MS, MILLISECONDS)); |
1031 |
|
|
assertEquals(21, f.number); |
1032 |
|
|
checkCompletedNormally(f); |
1033 |
|
|
}}; |
1034 |
|
|
checkInvoke(a); |
1035 |
|
|
} |
1036 |
|
|
|
1037 |
|
|
/** |
1038 |
|
|
* timed get with null time unit throws NPE |
1039 |
|
|
*/ |
1040 |
|
|
public void testForkTimedGetNPECC() { |
1041 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1042 |
|
|
protected void realCompute() throws Exception { |
1043 |
dl |
1.4 |
CCF f = new LCCF(null, 8); |
1044 |
|
|
assertSame(f, f.fork()); |
1045 |
|
|
try { |
1046 |
|
|
f.get(5L, null); |
1047 |
|
|
shouldThrow(); |
1048 |
|
|
} catch (NullPointerException success) {} |
1049 |
|
|
}}; |
1050 |
|
|
checkInvoke(a); |
1051 |
|
|
} |
1052 |
|
|
|
1053 |
|
|
/** |
1054 |
|
|
* quietlyJoin of a forked task returns when task completes |
1055 |
|
|
*/ |
1056 |
|
|
public void testForkQuietlyJoinCC() { |
1057 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1058 |
|
|
protected void realCompute() { |
1059 |
dl |
1.4 |
CCF f = new LCCF(null, 8); |
1060 |
|
|
assertSame(f, f.fork()); |
1061 |
|
|
f.quietlyJoin(); |
1062 |
|
|
assertEquals(21, f.number); |
1063 |
|
|
checkCompletedNormally(f); |
1064 |
|
|
}}; |
1065 |
|
|
checkInvoke(a); |
1066 |
|
|
} |
1067 |
|
|
|
1068 |
|
|
/** |
1069 |
|
|
* invoke task throws exception when task completes abnormally |
1070 |
|
|
*/ |
1071 |
|
|
public void testAbnormalInvokeCC() { |
1072 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1073 |
|
|
protected void realCompute() { |
1074 |
dl |
1.4 |
FailingCCF f = new LFCCF(null, 8); |
1075 |
|
|
try { |
1076 |
|
|
f.invoke(); |
1077 |
|
|
shouldThrow(); |
1078 |
|
|
} catch (FJException success) { |
1079 |
|
|
checkCompletedAbnormally(f, success); |
1080 |
|
|
} |
1081 |
|
|
}}; |
1082 |
|
|
checkInvoke(a); |
1083 |
|
|
} |
1084 |
|
|
|
1085 |
|
|
/** |
1086 |
|
|
* quietlyInvoke task returns when task completes abnormally |
1087 |
|
|
*/ |
1088 |
|
|
public void testAbnormalQuietlyInvokeCC() { |
1089 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1090 |
|
|
protected void realCompute() { |
1091 |
dl |
1.4 |
FailingCCF f = new LFCCF(null, 8); |
1092 |
|
|
f.quietlyInvoke(); |
1093 |
|
|
assertTrue(f.getException() instanceof FJException); |
1094 |
|
|
checkCompletedAbnormally(f, f.getException()); |
1095 |
|
|
}}; |
1096 |
|
|
checkInvoke(a); |
1097 |
|
|
} |
1098 |
|
|
|
1099 |
|
|
/** |
1100 |
|
|
* join of a forked task throws exception when task completes abnormally |
1101 |
|
|
*/ |
1102 |
|
|
public void testAbnormalForkJoinCC() { |
1103 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1104 |
|
|
protected void realCompute() { |
1105 |
dl |
1.4 |
FailingCCF f = new LFCCF(null, 8); |
1106 |
|
|
assertSame(f, f.fork()); |
1107 |
|
|
try { |
1108 |
|
|
f.join(); |
1109 |
|
|
shouldThrow(); |
1110 |
|
|
} catch (FJException success) { |
1111 |
|
|
checkCompletedAbnormally(f, success); |
1112 |
|
|
} |
1113 |
|
|
}}; |
1114 |
|
|
checkInvoke(a); |
1115 |
|
|
} |
1116 |
|
|
|
1117 |
|
|
/** |
1118 |
|
|
* get of a forked task throws exception when task completes abnormally |
1119 |
|
|
*/ |
1120 |
|
|
public void testAbnormalForkGetCC() { |
1121 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1122 |
|
|
protected void realCompute() throws Exception { |
1123 |
dl |
1.4 |
FailingCCF f = new LFCCF(null, 8); |
1124 |
|
|
assertSame(f, f.fork()); |
1125 |
|
|
try { |
1126 |
|
|
f.get(); |
1127 |
|
|
shouldThrow(); |
1128 |
|
|
} catch (ExecutionException success) { |
1129 |
|
|
Throwable cause = success.getCause(); |
1130 |
|
|
assertTrue(cause instanceof FJException); |
1131 |
|
|
checkCompletedAbnormally(f, cause); |
1132 |
|
|
} |
1133 |
|
|
}}; |
1134 |
|
|
checkInvoke(a); |
1135 |
|
|
} |
1136 |
|
|
|
1137 |
|
|
/** |
1138 |
|
|
* timed get of a forked task throws exception when task completes abnormally |
1139 |
|
|
*/ |
1140 |
|
|
public void testAbnormalForkTimedGetCC() { |
1141 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1142 |
|
|
protected void realCompute() throws Exception { |
1143 |
dl |
1.4 |
FailingCCF f = new LFCCF(null, 8); |
1144 |
|
|
assertSame(f, f.fork()); |
1145 |
|
|
try { |
1146 |
|
|
f.get(LONG_DELAY_MS, MILLISECONDS); |
1147 |
|
|
shouldThrow(); |
1148 |
|
|
} catch (ExecutionException success) { |
1149 |
|
|
Throwable cause = success.getCause(); |
1150 |
|
|
assertTrue(cause instanceof FJException); |
1151 |
|
|
checkCompletedAbnormally(f, cause); |
1152 |
|
|
} |
1153 |
|
|
}}; |
1154 |
|
|
checkInvoke(a); |
1155 |
|
|
} |
1156 |
|
|
|
1157 |
|
|
/** |
1158 |
|
|
* quietlyJoin of a forked task returns when task completes abnormally |
1159 |
|
|
*/ |
1160 |
|
|
public void testAbnormalForkQuietlyJoinCC() { |
1161 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1162 |
|
|
protected void realCompute() { |
1163 |
dl |
1.4 |
FailingCCF f = new LFCCF(null, 8); |
1164 |
|
|
assertSame(f, f.fork()); |
1165 |
|
|
f.quietlyJoin(); |
1166 |
|
|
assertTrue(f.getException() instanceof FJException); |
1167 |
|
|
checkCompletedAbnormally(f, f.getException()); |
1168 |
|
|
}}; |
1169 |
|
|
checkInvoke(a); |
1170 |
|
|
} |
1171 |
|
|
|
1172 |
|
|
/** |
1173 |
|
|
* invoke task throws exception when task cancelled |
1174 |
|
|
*/ |
1175 |
|
|
public void testCancelledInvokeCC() { |
1176 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1177 |
|
|
protected void realCompute() { |
1178 |
dl |
1.4 |
CCF f = new LCCF(null, 8); |
1179 |
|
|
assertTrue(f.cancel(true)); |
1180 |
|
|
try { |
1181 |
|
|
f.invoke(); |
1182 |
|
|
shouldThrow(); |
1183 |
|
|
} catch (CancellationException success) { |
1184 |
|
|
checkCancelled(f); |
1185 |
|
|
} |
1186 |
|
|
}}; |
1187 |
|
|
checkInvoke(a); |
1188 |
|
|
} |
1189 |
|
|
|
1190 |
|
|
/** |
1191 |
|
|
* join of a forked task throws exception when task cancelled |
1192 |
|
|
*/ |
1193 |
|
|
public void testCancelledForkJoinCC() { |
1194 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1195 |
|
|
protected void realCompute() { |
1196 |
dl |
1.4 |
CCF f = new LCCF(null, 8); |
1197 |
|
|
assertTrue(f.cancel(true)); |
1198 |
|
|
assertSame(f, f.fork()); |
1199 |
|
|
try { |
1200 |
|
|
f.join(); |
1201 |
|
|
shouldThrow(); |
1202 |
|
|
} catch (CancellationException success) { |
1203 |
|
|
checkCancelled(f); |
1204 |
|
|
} |
1205 |
|
|
}}; |
1206 |
|
|
checkInvoke(a); |
1207 |
|
|
} |
1208 |
|
|
|
1209 |
|
|
/** |
1210 |
|
|
* get of a forked task throws exception when task cancelled |
1211 |
|
|
*/ |
1212 |
|
|
public void testCancelledForkGetCC() { |
1213 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1214 |
|
|
protected void realCompute() throws Exception { |
1215 |
dl |
1.4 |
CCF f = new LCCF(null, 8); |
1216 |
|
|
assertTrue(f.cancel(true)); |
1217 |
|
|
assertSame(f, f.fork()); |
1218 |
|
|
try { |
1219 |
|
|
f.get(); |
1220 |
|
|
shouldThrow(); |
1221 |
|
|
} catch (CancellationException success) { |
1222 |
|
|
checkCancelled(f); |
1223 |
|
|
} |
1224 |
|
|
}}; |
1225 |
|
|
checkInvoke(a); |
1226 |
|
|
} |
1227 |
|
|
|
1228 |
|
|
/** |
1229 |
|
|
* timed get of a forked task throws exception when task cancelled |
1230 |
|
|
*/ |
1231 |
|
|
public void testCancelledForkTimedGetCC() throws Exception { |
1232 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1233 |
|
|
protected void realCompute() throws Exception { |
1234 |
dl |
1.4 |
CCF f = new LCCF(null, 8); |
1235 |
|
|
assertTrue(f.cancel(true)); |
1236 |
|
|
assertSame(f, f.fork()); |
1237 |
|
|
try { |
1238 |
|
|
f.get(LONG_DELAY_MS, MILLISECONDS); |
1239 |
|
|
shouldThrow(); |
1240 |
|
|
} catch (CancellationException success) { |
1241 |
|
|
checkCancelled(f); |
1242 |
|
|
} |
1243 |
|
|
}}; |
1244 |
|
|
checkInvoke(a); |
1245 |
|
|
} |
1246 |
|
|
|
1247 |
|
|
/** |
1248 |
|
|
* quietlyJoin of a forked task returns when task cancelled |
1249 |
|
|
*/ |
1250 |
|
|
public void testCancelledForkQuietlyJoinCC() { |
1251 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1252 |
|
|
protected void realCompute() { |
1253 |
dl |
1.4 |
CCF f = new LCCF(null, 8); |
1254 |
|
|
assertTrue(f.cancel(true)); |
1255 |
|
|
assertSame(f, f.fork()); |
1256 |
|
|
f.quietlyJoin(); |
1257 |
|
|
checkCancelled(f); |
1258 |
|
|
}}; |
1259 |
|
|
checkInvoke(a); |
1260 |
|
|
} |
1261 |
|
|
|
1262 |
|
|
/** |
1263 |
|
|
* getPool of non-FJ task returns null |
1264 |
|
|
*/ |
1265 |
|
|
public void testGetPool2CC() { |
1266 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1267 |
|
|
protected void realCompute() { |
1268 |
dl |
1.4 |
assertNull(getPool()); |
1269 |
|
|
}}; |
1270 |
|
|
assertNull(a.invoke()); |
1271 |
|
|
} |
1272 |
|
|
|
1273 |
|
|
/** |
1274 |
|
|
* inForkJoinPool of non-FJ task returns false |
1275 |
|
|
*/ |
1276 |
|
|
public void testInForkJoinPool2CC() { |
1277 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1278 |
|
|
protected void realCompute() { |
1279 |
dl |
1.4 |
assertFalse(inForkJoinPool()); |
1280 |
|
|
}}; |
1281 |
|
|
assertNull(a.invoke()); |
1282 |
|
|
} |
1283 |
|
|
|
1284 |
|
|
/** |
1285 |
|
|
* setRawResult(null) succeeds |
1286 |
|
|
*/ |
1287 |
|
|
public void testSetRawResultCC() { |
1288 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1289 |
|
|
protected void realCompute() { |
1290 |
dl |
1.4 |
setRawResult(null); |
1291 |
|
|
assertNull(getRawResult()); |
1292 |
|
|
}}; |
1293 |
|
|
assertNull(a.invoke()); |
1294 |
|
|
} |
1295 |
|
|
|
1296 |
|
|
/** |
1297 |
|
|
* invoke task throws exception after invoking completeExceptionally |
1298 |
|
|
*/ |
1299 |
|
|
public void testCompleteExceptionally2CC() { |
1300 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1301 |
|
|
protected void realCompute() { |
1302 |
dl |
1.4 |
CCF f = new LCCF(null, 8); |
1303 |
|
|
f.completeExceptionally(new FJException()); |
1304 |
|
|
try { |
1305 |
|
|
f.invoke(); |
1306 |
|
|
shouldThrow(); |
1307 |
|
|
} catch (FJException success) { |
1308 |
|
|
checkCompletedAbnormally(f, success); |
1309 |
|
|
} |
1310 |
|
|
}}; |
1311 |
|
|
checkInvoke(a); |
1312 |
|
|
} |
1313 |
|
|
|
1314 |
|
|
/** |
1315 |
|
|
* invokeAll(t1, t2) invokes all task arguments |
1316 |
|
|
*/ |
1317 |
|
|
public void testInvokeAll2CC() { |
1318 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1319 |
|
|
protected void realCompute() { |
1320 |
dl |
1.4 |
CCF f = new LCCF(null, 8); |
1321 |
|
|
CCF g = new LCCF(null, 9); |
1322 |
|
|
invokeAll(f, g); |
1323 |
|
|
assertEquals(21, f.number); |
1324 |
|
|
assertEquals(34, g.number); |
1325 |
|
|
checkCompletedNormally(f); |
1326 |
|
|
checkCompletedNormally(g); |
1327 |
|
|
}}; |
1328 |
|
|
checkInvoke(a); |
1329 |
|
|
} |
1330 |
|
|
|
1331 |
|
|
/** |
1332 |
|
|
* invokeAll(tasks) with 1 argument invokes task |
1333 |
|
|
*/ |
1334 |
|
|
public void testInvokeAll1CC() { |
1335 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1336 |
|
|
protected void realCompute() { |
1337 |
dl |
1.4 |
CCF f = new LCCF(null, 8); |
1338 |
|
|
invokeAll(f); |
1339 |
|
|
checkCompletedNormally(f); |
1340 |
|
|
assertEquals(21, f.number); |
1341 |
|
|
}}; |
1342 |
|
|
checkInvoke(a); |
1343 |
|
|
} |
1344 |
|
|
|
1345 |
|
|
/** |
1346 |
|
|
* invokeAll(tasks) with > 2 argument invokes tasks |
1347 |
|
|
*/ |
1348 |
|
|
public void testInvokeAll3CC() { |
1349 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1350 |
|
|
protected void realCompute() { |
1351 |
dl |
1.4 |
CCF f = new LCCF(null, 8); |
1352 |
|
|
CCF g = new LCCF(null, 9); |
1353 |
|
|
CCF h = new LCCF(null, 7); |
1354 |
|
|
invokeAll(f, g, h); |
1355 |
|
|
assertEquals(21, f.number); |
1356 |
|
|
assertEquals(34, g.number); |
1357 |
|
|
assertEquals(13, h.number); |
1358 |
|
|
checkCompletedNormally(f); |
1359 |
|
|
checkCompletedNormally(g); |
1360 |
|
|
checkCompletedNormally(h); |
1361 |
|
|
}}; |
1362 |
|
|
checkInvoke(a); |
1363 |
|
|
} |
1364 |
|
|
|
1365 |
|
|
/** |
1366 |
|
|
* invokeAll(collection) invokes all tasks in the collection |
1367 |
|
|
*/ |
1368 |
|
|
public void testInvokeAllCollectionCC() { |
1369 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1370 |
|
|
protected void realCompute() { |
1371 |
dl |
1.4 |
CCF f = new LCCF(null, 8); |
1372 |
|
|
CCF g = new LCCF(null, 9); |
1373 |
|
|
CCF h = new LCCF(null, 7); |
1374 |
|
|
HashSet set = new HashSet(); |
1375 |
|
|
set.add(f); |
1376 |
|
|
set.add(g); |
1377 |
|
|
set.add(h); |
1378 |
|
|
invokeAll(set); |
1379 |
|
|
assertEquals(21, f.number); |
1380 |
|
|
assertEquals(34, g.number); |
1381 |
|
|
assertEquals(13, h.number); |
1382 |
|
|
checkCompletedNormally(f); |
1383 |
|
|
checkCompletedNormally(g); |
1384 |
|
|
checkCompletedNormally(h); |
1385 |
|
|
}}; |
1386 |
|
|
checkInvoke(a); |
1387 |
|
|
} |
1388 |
|
|
|
1389 |
|
|
/** |
1390 |
|
|
* invokeAll(tasks) with any null task throws NPE |
1391 |
|
|
*/ |
1392 |
|
|
public void testInvokeAllNPECC() { |
1393 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1394 |
|
|
protected void realCompute() { |
1395 |
dl |
1.4 |
CCF f = new LCCF(null, 8); |
1396 |
|
|
CCF g = new LCCF(null, 9); |
1397 |
|
|
CCF h = null; |
1398 |
|
|
try { |
1399 |
|
|
invokeAll(f, g, h); |
1400 |
|
|
shouldThrow(); |
1401 |
|
|
} catch (NullPointerException success) {} |
1402 |
|
|
}}; |
1403 |
|
|
checkInvoke(a); |
1404 |
|
|
} |
1405 |
|
|
|
1406 |
|
|
/** |
1407 |
|
|
* invokeAll(t1, t2) throw exception if any task does |
1408 |
|
|
*/ |
1409 |
|
|
public void testAbnormalInvokeAll2CC() { |
1410 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1411 |
|
|
protected void realCompute() { |
1412 |
dl |
1.4 |
CCF f = new LCCF(null, 8); |
1413 |
|
|
FailingCCF g = new LFCCF(null, 9); |
1414 |
|
|
try { |
1415 |
|
|
invokeAll(f, g); |
1416 |
|
|
shouldThrow(); |
1417 |
|
|
} catch (FJException success) { |
1418 |
|
|
checkCompletedAbnormally(g, success); |
1419 |
|
|
} |
1420 |
|
|
}}; |
1421 |
|
|
checkInvoke(a); |
1422 |
|
|
} |
1423 |
|
|
|
1424 |
|
|
/** |
1425 |
|
|
* invokeAll(tasks) with 1 argument throws exception if task does |
1426 |
|
|
*/ |
1427 |
|
|
public void testAbnormalInvokeAll1CC() { |
1428 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1429 |
|
|
protected void realCompute() { |
1430 |
dl |
1.4 |
FailingCCF g = new LFCCF(null, 9); |
1431 |
|
|
try { |
1432 |
|
|
invokeAll(g); |
1433 |
|
|
shouldThrow(); |
1434 |
|
|
} catch (FJException success) { |
1435 |
|
|
checkCompletedAbnormally(g, success); |
1436 |
|
|
} |
1437 |
|
|
}}; |
1438 |
|
|
checkInvoke(a); |
1439 |
|
|
} |
1440 |
|
|
|
1441 |
|
|
/** |
1442 |
|
|
* invokeAll(tasks) with > 2 argument throws exception if any task does |
1443 |
|
|
*/ |
1444 |
|
|
public void testAbnormalInvokeAll3CC() { |
1445 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1446 |
|
|
protected void realCompute() { |
1447 |
dl |
1.4 |
CCF f = new LCCF(null, 8); |
1448 |
|
|
FailingCCF g = new LFCCF(null, 9); |
1449 |
|
|
CCF h = new LCCF(null, 7); |
1450 |
|
|
try { |
1451 |
|
|
invokeAll(f, g, h); |
1452 |
|
|
shouldThrow(); |
1453 |
|
|
} catch (FJException success) { |
1454 |
|
|
checkCompletedAbnormally(g, success); |
1455 |
|
|
} |
1456 |
|
|
}}; |
1457 |
|
|
checkInvoke(a); |
1458 |
|
|
} |
1459 |
|
|
|
1460 |
|
|
/** |
1461 |
jsr166 |
1.14 |
* invokeAll(collection) throws exception if any task does |
1462 |
dl |
1.4 |
*/ |
1463 |
|
|
public void testAbnormalInvokeAllCollectionCC() { |
1464 |
jsr166 |
1.9 |
ForkJoinTask a = new CheckedRecursiveAction() { |
1465 |
|
|
protected void realCompute() { |
1466 |
dl |
1.4 |
FailingCCF f = new LFCCF(null, 8); |
1467 |
|
|
CCF g = new LCCF(null, 9); |
1468 |
|
|
CCF h = new LCCF(null, 7); |
1469 |
|
|
HashSet set = new HashSet(); |
1470 |
|
|
set.add(f); |
1471 |
|
|
set.add(g); |
1472 |
|
|
set.add(h); |
1473 |
|
|
try { |
1474 |
|
|
invokeAll(set); |
1475 |
|
|
shouldThrow(); |
1476 |
|
|
} catch (FJException success) { |
1477 |
|
|
checkCompletedAbnormally(f, success); |
1478 |
|
|
} |
1479 |
|
|
}}; |
1480 |
|
|
checkInvoke(a); |
1481 |
|
|
} |
1482 |
|
|
|
1483 |
dl |
1.11 |
/** |
1484 |
jsr166 |
1.18 |
* awaitQuiescence by a worker is equivalent in effect to |
1485 |
dl |
1.11 |
* ForkJoinTask.helpQuiesce() |
1486 |
jsr166 |
1.12 |
*/ |
1487 |
jsr166 |
1.18 |
public void testAwaitQuiescence1() throws Exception { |
1488 |
dl |
1.11 |
final ForkJoinPool p = new ForkJoinPool(); |
1489 |
|
|
try { |
1490 |
|
|
final long startTime = System.nanoTime(); |
1491 |
|
|
assertTrue(p.isQuiescent()); |
1492 |
|
|
ForkJoinTask a = new CheckedRecursiveAction() { |
1493 |
jsr166 |
1.16 |
protected void realCompute() { |
1494 |
|
|
FibAction f = new FibAction(8); |
1495 |
|
|
assertSame(f, f.fork()); |
1496 |
jsr166 |
1.22 |
assertSame(p, ForkJoinTask.getPool()); |
1497 |
|
|
boolean quiescent = p.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS); |
1498 |
jsr166 |
1.19 |
assertTrue(quiescent); |
1499 |
jsr166 |
1.22 |
assertFalse(p.isQuiescent()); |
1500 |
jsr166 |
1.16 |
while (!f.isDone()) { |
1501 |
|
|
assertFalse(p.getAsyncMode()); |
1502 |
|
|
assertFalse(p.isShutdown()); |
1503 |
|
|
assertFalse(p.isTerminating()); |
1504 |
|
|
assertFalse(p.isTerminated()); |
1505 |
|
|
Thread.yield(); |
1506 |
|
|
} |
1507 |
jsr166 |
1.23 |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1508 |
jsr166 |
1.16 |
assertFalse(p.isQuiescent()); |
1509 |
|
|
assertEquals(0, ForkJoinTask.getQueuedTaskCount()); |
1510 |
jsr166 |
1.20 |
assertEquals(21, f.result); |
1511 |
jsr166 |
1.16 |
}}; |
1512 |
dl |
1.11 |
p.execute(a); |
1513 |
|
|
while (!a.isDone() || !p.isQuiescent()) { |
1514 |
|
|
assertFalse(p.getAsyncMode()); |
1515 |
|
|
assertFalse(p.isShutdown()); |
1516 |
|
|
assertFalse(p.isTerminating()); |
1517 |
|
|
assertFalse(p.isTerminated()); |
1518 |
|
|
Thread.yield(); |
1519 |
|
|
} |
1520 |
jsr166 |
1.23 |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1521 |
dl |
1.11 |
assertEquals(0, p.getQueuedTaskCount()); |
1522 |
|
|
assertFalse(p.getAsyncMode()); |
1523 |
|
|
assertEquals(0, p.getActiveThreadCount()); |
1524 |
|
|
assertEquals(0, p.getQueuedTaskCount()); |
1525 |
|
|
assertEquals(0, p.getQueuedSubmissionCount()); |
1526 |
|
|
assertFalse(p.hasQueuedSubmissions()); |
1527 |
|
|
assertFalse(p.isShutdown()); |
1528 |
|
|
assertFalse(p.isTerminating()); |
1529 |
|
|
assertFalse(p.isTerminated()); |
1530 |
|
|
} finally { |
1531 |
|
|
joinPool(p); |
1532 |
|
|
} |
1533 |
|
|
} |
1534 |
jsr166 |
1.12 |
|
1535 |
dl |
1.11 |
/** |
1536 |
jsr166 |
1.18 |
* awaitQuiescence returns when pool isQuiescent() or the indicated |
1537 |
|
|
* timeout elapsed |
1538 |
jsr166 |
1.12 |
*/ |
1539 |
jsr166 |
1.18 |
public void testAwaitQuiescence2() throws Exception { |
1540 |
jsr166 |
1.27 |
/** |
1541 |
|
|
* """It is possible to disable or limit the use of threads in the |
1542 |
|
|
* common pool by setting the parallelism property to zero. However |
1543 |
|
|
* doing so may cause unjoined tasks to never be executed.""" |
1544 |
|
|
*/ |
1545 |
|
|
if ("0".equals(System.getProperty( |
1546 |
|
|
"java.util.concurrent.ForkJoinPool.common.parallelism"))) |
1547 |
|
|
return; |
1548 |
dl |
1.11 |
final ForkJoinPool p = new ForkJoinPool(); |
1549 |
|
|
try { |
1550 |
|
|
assertTrue(p.isQuiescent()); |
1551 |
jsr166 |
1.26 |
final long startTime = System.nanoTime(); |
1552 |
|
|
ForkJoinTask a = new CheckedRecursiveAction() { |
1553 |
|
|
protected void realCompute() { |
1554 |
|
|
FibAction f = new FibAction(8); |
1555 |
|
|
assertSame(f, f.fork()); |
1556 |
|
|
while (!f.isDone() |
1557 |
|
|
&& millisElapsedSince(startTime) < LONG_DELAY_MS) { |
1558 |
|
|
assertFalse(p.getAsyncMode()); |
1559 |
|
|
assertFalse(p.isShutdown()); |
1560 |
|
|
assertFalse(p.isTerminating()); |
1561 |
|
|
assertFalse(p.isTerminated()); |
1562 |
|
|
Thread.yield(); |
1563 |
|
|
} |
1564 |
|
|
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1565 |
|
|
assertEquals(0, ForkJoinTask.getQueuedTaskCount()); |
1566 |
|
|
assertEquals(21, f.result); |
1567 |
|
|
}}; |
1568 |
|
|
p.execute(a); |
1569 |
|
|
assertTrue(p.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS)); |
1570 |
|
|
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1571 |
|
|
assertTrue(p.isQuiescent()); |
1572 |
|
|
assertTrue(a.isDone()); |
1573 |
|
|
assertEquals(0, p.getQueuedTaskCount()); |
1574 |
|
|
assertFalse(p.getAsyncMode()); |
1575 |
|
|
assertEquals(0, p.getActiveThreadCount()); |
1576 |
|
|
assertEquals(0, p.getQueuedTaskCount()); |
1577 |
|
|
assertEquals(0, p.getQueuedSubmissionCount()); |
1578 |
|
|
assertFalse(p.hasQueuedSubmissions()); |
1579 |
|
|
assertFalse(p.isShutdown()); |
1580 |
|
|
assertFalse(p.isTerminating()); |
1581 |
|
|
assertFalse(p.isTerminated()); |
1582 |
dl |
1.11 |
} finally { |
1583 |
|
|
joinPool(p); |
1584 |
|
|
} |
1585 |
|
|
} |
1586 |
|
|
|
1587 |
jsr166 |
1.1 |
} |