1 |
dl |
1.1 |
/* |
2 |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
3 |
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* Expert Group and released to the public domain, as explained at |
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jsr166 |
1.30 |
* http://creativecommons.org/publicdomain/zero/1.0/ |
5 |
dl |
1.1 |
*/ |
6 |
jsr166 |
1.14 |
|
7 |
jsr166 |
1.40 |
import static java.util.concurrent.TimeUnit.SECONDS; |
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import java.util.Arrays; |
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import java.util.HashSet; |
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jsr166 |
1.15 |
import java.util.concurrent.CancellationException; |
12 |
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import java.util.concurrent.ExecutionException; |
13 |
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import java.util.concurrent.ForkJoinPool; |
14 |
jsr166 |
1.27 |
import java.util.concurrent.ForkJoinTask; |
15 |
jsr166 |
1.15 |
import java.util.concurrent.ForkJoinWorkerThread; |
16 |
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import java.util.concurrent.RecursiveAction; |
17 |
jsr166 |
1.40 |
import java.util.concurrent.SynchronousQueue; |
18 |
jsr166 |
1.34 |
import java.util.concurrent.ThreadLocalRandom; |
19 |
jsr166 |
1.40 |
import java.util.concurrent.TimeoutException; |
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21 |
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import junit.framework.Test; |
22 |
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import junit.framework.TestSuite; |
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dl |
1.1 |
|
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public class RecursiveActionTest extends JSR166TestCase { |
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public static void main(String[] args) { |
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jsr166 |
1.11 |
junit.textui.TestRunner.run(suite()); |
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dl |
1.1 |
} |
29 |
jsr166 |
1.13 |
|
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dl |
1.1 |
public static Test suite() { |
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jsr166 |
1.9 |
return new TestSuite(RecursiveActionTest.class); |
32 |
dl |
1.1 |
} |
33 |
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|
34 |
jsr166 |
1.14 |
private static ForkJoinPool mainPool() { |
35 |
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return new ForkJoinPool(); |
36 |
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} |
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private static ForkJoinPool singletonPool() { |
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return new ForkJoinPool(1); |
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} |
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private static ForkJoinPool asyncSingletonPool() { |
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return new ForkJoinPool(1, |
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ForkJoinPool.defaultForkJoinWorkerThreadFactory, |
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null, true); |
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} |
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48 |
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private void testInvokeOnPool(ForkJoinPool pool, RecursiveAction a) { |
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try { |
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jsr166 |
1.19 |
checkNotDone(a); |
51 |
jsr166 |
1.18 |
|
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assertNull(pool.invoke(a)); |
53 |
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jsr166 |
1.19 |
checkCompletedNormally(a); |
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jsr166 |
1.14 |
} finally { |
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joinPool(pool); |
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} |
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} |
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dl |
1.1 |
|
60 |
jsr166 |
1.19 |
void checkNotDone(RecursiveAction a) { |
61 |
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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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|
68 |
jsr166 |
1.27 |
if (! ForkJoinTask.inForkJoinPool()) { |
69 |
jsr166 |
1.19 |
Thread.currentThread().interrupt(); |
70 |
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try { |
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a.get(); |
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shouldThrow(); |
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} catch (InterruptedException success) { |
74 |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
75 |
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Thread.currentThread().interrupt(); |
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try { |
78 |
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a.get(5L, SECONDS); |
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shouldThrow(); |
80 |
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} catch (InterruptedException success) { |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
82 |
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} |
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84 |
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try { |
85 |
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a.get(0L, SECONDS); |
86 |
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shouldThrow(); |
87 |
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} catch (TimeoutException success) { |
88 |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
89 |
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} |
90 |
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void checkCompletedNormally(RecursiveAction a) { |
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assertTrue(a.isDone()); |
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assertFalse(a.isCancelled()); |
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assertTrue(a.isCompletedNormally()); |
95 |
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assertFalse(a.isCompletedAbnormally()); |
96 |
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assertNull(a.getException()); |
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assertNull(a.getRawResult()); |
98 |
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assertNull(a.join()); |
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jsr166 |
1.22 |
assertFalse(a.cancel(false)); |
100 |
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assertFalse(a.cancel(true)); |
101 |
jsr166 |
1.19 |
try { |
102 |
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assertNull(a.get()); |
103 |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
104 |
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try { |
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assertNull(a.get(5L, SECONDS)); |
106 |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
107 |
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} |
108 |
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109 |
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void checkCancelled(RecursiveAction a) { |
110 |
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assertTrue(a.isDone()); |
111 |
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assertTrue(a.isCancelled()); |
112 |
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assertFalse(a.isCompletedNormally()); |
113 |
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assertTrue(a.isCompletedAbnormally()); |
114 |
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assertTrue(a.getException() instanceof CancellationException); |
115 |
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assertNull(a.getRawResult()); |
116 |
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117 |
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try { |
118 |
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a.join(); |
119 |
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shouldThrow(); |
120 |
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} catch (CancellationException success) { |
121 |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
122 |
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try { |
124 |
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a.get(); |
125 |
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shouldThrow(); |
126 |
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} catch (CancellationException success) { |
127 |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
128 |
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129 |
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try { |
130 |
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a.get(5L, SECONDS); |
131 |
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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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136 |
jsr166 |
1.21 |
void checkCompletedAbnormally(RecursiveAction a, Throwable t) { |
137 |
jsr166 |
1.19 |
assertTrue(a.isDone()); |
138 |
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assertFalse(a.isCancelled()); |
139 |
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assertFalse(a.isCompletedNormally()); |
140 |
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assertTrue(a.isCompletedAbnormally()); |
141 |
dl |
1.29 |
assertSame(t.getClass(), a.getException().getClass()); |
142 |
jsr166 |
1.19 |
assertNull(a.getRawResult()); |
143 |
jsr166 |
1.22 |
assertFalse(a.cancel(false)); |
144 |
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assertFalse(a.cancel(true)); |
145 |
jsr166 |
1.19 |
|
146 |
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try { |
147 |
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a.join(); |
148 |
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shouldThrow(); |
149 |
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} catch (Throwable expected) { |
150 |
dl |
1.29 |
assertSame(expected.getClass(), t.getClass()); |
151 |
jsr166 |
1.19 |
} |
152 |
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153 |
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try { |
154 |
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a.get(); |
155 |
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shouldThrow(); |
156 |
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} catch (ExecutionException success) { |
157 |
dl |
1.29 |
assertSame(t.getClass(), success.getCause().getClass()); |
158 |
jsr166 |
1.19 |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
159 |
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160 |
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try { |
161 |
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a.get(5L, SECONDS); |
162 |
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shouldThrow(); |
163 |
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} catch (ExecutionException success) { |
164 |
dl |
1.29 |
assertSame(t.getClass(), success.getCause().getClass()); |
165 |
jsr166 |
1.19 |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
166 |
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} |
167 |
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168 |
dl |
1.29 |
public static final class FJException extends RuntimeException { |
169 |
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public FJException() { super(); } |
170 |
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public FJException(Throwable cause) { super(cause); } |
171 |
dl |
1.1 |
} |
172 |
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173 |
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// A simple recursive action for testing |
174 |
jsr166 |
1.18 |
final class FibAction extends CheckedRecursiveAction { |
175 |
dl |
1.1 |
final int number; |
176 |
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int result; |
177 |
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FibAction(int n) { number = n; } |
178 |
jsr166 |
1.39 |
protected void realCompute() { |
179 |
dl |
1.1 |
int n = number; |
180 |
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if (n <= 1) |
181 |
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result = n; |
182 |
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else { |
183 |
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FibAction f1 = new FibAction(n - 1); |
184 |
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FibAction f2 = new FibAction(n - 2); |
185 |
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invokeAll(f1, f2); |
186 |
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result = f1.result + f2.result; |
187 |
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} |
188 |
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} |
189 |
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} |
190 |
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191 |
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// A recursive action failing in base case |
192 |
jsr166 |
1.2 |
static final class FailingFibAction extends RecursiveAction { |
193 |
dl |
1.1 |
final int number; |
194 |
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int result; |
195 |
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FailingFibAction(int n) { number = n; } |
196 |
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public void compute() { |
197 |
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int n = number; |
198 |
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if (n <= 1) |
199 |
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throw new FJException(); |
200 |
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else { |
201 |
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FailingFibAction f1 = new FailingFibAction(n - 1); |
202 |
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FailingFibAction f2 = new FailingFibAction(n - 2); |
203 |
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invokeAll(f1, f2); |
204 |
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result = f1.result + f2.result; |
205 |
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} |
206 |
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} |
207 |
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} |
208 |
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|
209 |
jsr166 |
1.2 |
/** |
210 |
dl |
1.1 |
* invoke returns when task completes normally. |
211 |
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* isCompletedAbnormally and isCancelled return false for normally |
212 |
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* completed tasks. getRawResult of a RecursiveAction returns null; |
213 |
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*/ |
214 |
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public void testInvoke() { |
215 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
216 |
jsr166 |
1.39 |
protected void realCompute() { |
217 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
218 |
jsr166 |
1.18 |
assertNull(f.invoke()); |
219 |
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assertEquals(21, f.result); |
220 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
221 |
jsr166 |
1.7 |
}}; |
222 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
223 |
dl |
1.1 |
} |
224 |
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|
225 |
jsr166 |
1.2 |
/** |
226 |
dl |
1.1 |
* quietlyInvoke task returns when task completes normally. |
227 |
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* isCompletedAbnormally and isCancelled return false for normally |
228 |
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* completed tasks |
229 |
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*/ |
230 |
|
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public void testQuietlyInvoke() { |
231 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
232 |
jsr166 |
1.39 |
protected void realCompute() { |
233 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
234 |
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f.quietlyInvoke(); |
235 |
jsr166 |
1.18 |
assertEquals(21, f.result); |
236 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
237 |
jsr166 |
1.7 |
}}; |
238 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
239 |
dl |
1.1 |
} |
240 |
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|
241 |
jsr166 |
1.2 |
/** |
242 |
dl |
1.1 |
* join of a forked task returns when task completes |
243 |
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*/ |
244 |
|
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public void testForkJoin() { |
245 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
246 |
jsr166 |
1.39 |
protected void realCompute() { |
247 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
248 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
249 |
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assertNull(f.join()); |
250 |
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assertEquals(21, f.result); |
251 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
252 |
jsr166 |
1.7 |
}}; |
253 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
254 |
dl |
1.1 |
} |
255 |
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|
256 |
jsr166 |
1.2 |
/** |
257 |
jsr166 |
1.25 |
* join/quietlyJoin of a forked task succeeds in the presence of interrupts |
258 |
jsr166 |
1.24 |
*/ |
259 |
|
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public void testJoinIgnoresInterrupts() { |
260 |
|
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RecursiveAction a = new CheckedRecursiveAction() { |
261 |
jsr166 |
1.39 |
protected void realCompute() { |
262 |
jsr166 |
1.24 |
FibAction f = new FibAction(8); |
263 |
jsr166 |
1.28 |
final Thread myself = Thread.currentThread(); |
264 |
jsr166 |
1.24 |
|
265 |
|
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// test join() |
266 |
|
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assertSame(f, f.fork()); |
267 |
jsr166 |
1.28 |
myself.interrupt(); |
268 |
|
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assertTrue(myself.isInterrupted()); |
269 |
jsr166 |
1.24 |
assertNull(f.join()); |
270 |
jsr166 |
1.25 |
Thread.interrupted(); |
271 |
jsr166 |
1.24 |
assertEquals(21, f.result); |
272 |
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checkCompletedNormally(f); |
273 |
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|
274 |
dl |
1.32 |
f = new FibAction(8); |
275 |
jsr166 |
1.24 |
f.cancel(true); |
276 |
|
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assertSame(f, f.fork()); |
277 |
jsr166 |
1.28 |
myself.interrupt(); |
278 |
|
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assertTrue(myself.isInterrupted()); |
279 |
jsr166 |
1.24 |
try { |
280 |
|
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f.join(); |
281 |
|
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shouldThrow(); |
282 |
|
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} catch (CancellationException success) { |
283 |
jsr166 |
1.25 |
Thread.interrupted(); |
284 |
jsr166 |
1.24 |
checkCancelled(f); |
285 |
|
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} |
286 |
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|
287 |
dl |
1.32 |
f = new FibAction(8); |
288 |
jsr166 |
1.24 |
f.completeExceptionally(new FJException()); |
289 |
|
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assertSame(f, f.fork()); |
290 |
jsr166 |
1.28 |
myself.interrupt(); |
291 |
|
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assertTrue(myself.isInterrupted()); |
292 |
jsr166 |
1.24 |
try { |
293 |
|
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f.join(); |
294 |
|
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shouldThrow(); |
295 |
|
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} catch (FJException success) { |
296 |
jsr166 |
1.25 |
Thread.interrupted(); |
297 |
jsr166 |
1.24 |
checkCompletedAbnormally(f, success); |
298 |
|
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} |
299 |
|
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|
300 |
|
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// test quietlyJoin() |
301 |
dl |
1.32 |
f = new FibAction(8); |
302 |
jsr166 |
1.24 |
assertSame(f, f.fork()); |
303 |
jsr166 |
1.28 |
myself.interrupt(); |
304 |
|
|
assertTrue(myself.isInterrupted()); |
305 |
jsr166 |
1.24 |
f.quietlyJoin(); |
306 |
jsr166 |
1.25 |
Thread.interrupted(); |
307 |
jsr166 |
1.24 |
assertEquals(21, f.result); |
308 |
|
|
checkCompletedNormally(f); |
309 |
|
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|
310 |
dl |
1.32 |
f = new FibAction(8); |
311 |
jsr166 |
1.24 |
f.cancel(true); |
312 |
|
|
assertSame(f, f.fork()); |
313 |
jsr166 |
1.28 |
myself.interrupt(); |
314 |
|
|
assertTrue(myself.isInterrupted()); |
315 |
jsr166 |
1.24 |
f.quietlyJoin(); |
316 |
jsr166 |
1.25 |
Thread.interrupted(); |
317 |
jsr166 |
1.24 |
checkCancelled(f); |
318 |
|
|
|
319 |
dl |
1.32 |
f = new FibAction(8); |
320 |
jsr166 |
1.24 |
f.completeExceptionally(new FJException()); |
321 |
|
|
assertSame(f, f.fork()); |
322 |
jsr166 |
1.28 |
myself.interrupt(); |
323 |
|
|
assertTrue(myself.isInterrupted()); |
324 |
jsr166 |
1.24 |
f.quietlyJoin(); |
325 |
jsr166 |
1.25 |
Thread.interrupted(); |
326 |
jsr166 |
1.24 |
checkCompletedAbnormally(f, f.getException()); |
327 |
|
|
}}; |
328 |
|
|
testInvokeOnPool(mainPool(), a); |
329 |
|
|
a.reinitialize(); |
330 |
|
|
testInvokeOnPool(singletonPool(), a); |
331 |
|
|
} |
332 |
|
|
|
333 |
|
|
/** |
334 |
jsr166 |
1.26 |
* join/quietlyJoin of a forked task when not in ForkJoinPool |
335 |
|
|
* succeeds in the presence of interrupts |
336 |
|
|
*/ |
337 |
|
|
public void testJoinIgnoresInterruptsOutsideForkJoinPool() { |
338 |
|
|
final SynchronousQueue<FibAction[]> sq = |
339 |
|
|
new SynchronousQueue<FibAction[]>(); |
340 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
341 |
jsr166 |
1.39 |
protected void realCompute() throws InterruptedException { |
342 |
jsr166 |
1.26 |
FibAction[] fibActions = new FibAction[6]; |
343 |
|
|
for (int i = 0; i < fibActions.length; i++) |
344 |
|
|
fibActions[i] = new FibAction(8); |
345 |
|
|
|
346 |
|
|
fibActions[1].cancel(false); |
347 |
|
|
fibActions[2].completeExceptionally(new FJException()); |
348 |
|
|
fibActions[4].cancel(true); |
349 |
|
|
fibActions[5].completeExceptionally(new FJException()); |
350 |
|
|
|
351 |
|
|
for (int i = 0; i < fibActions.length; i++) |
352 |
|
|
fibActions[i].fork(); |
353 |
|
|
|
354 |
|
|
sq.put(fibActions); |
355 |
|
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|
356 |
|
|
helpQuiesce(); |
357 |
|
|
}}; |
358 |
|
|
|
359 |
|
|
Runnable r = new CheckedRunnable() { |
360 |
|
|
public void realRun() throws InterruptedException { |
361 |
|
|
FibAction[] fibActions = sq.take(); |
362 |
|
|
FibAction f; |
363 |
jsr166 |
1.28 |
final Thread myself = Thread.currentThread(); |
364 |
jsr166 |
1.26 |
|
365 |
|
|
// test join() ------------ |
366 |
|
|
|
367 |
|
|
f = fibActions[0]; |
368 |
jsr166 |
1.27 |
assertFalse(ForkJoinTask.inForkJoinPool()); |
369 |
jsr166 |
1.28 |
myself.interrupt(); |
370 |
|
|
assertTrue(myself.isInterrupted()); |
371 |
jsr166 |
1.26 |
assertNull(f.join()); |
372 |
|
|
assertTrue(Thread.interrupted()); |
373 |
|
|
assertEquals(21, f.result); |
374 |
|
|
checkCompletedNormally(f); |
375 |
|
|
|
376 |
|
|
f = fibActions[1]; |
377 |
jsr166 |
1.28 |
myself.interrupt(); |
378 |
|
|
assertTrue(myself.isInterrupted()); |
379 |
jsr166 |
1.26 |
try { |
380 |
|
|
f.join(); |
381 |
|
|
shouldThrow(); |
382 |
|
|
} catch (CancellationException success) { |
383 |
|
|
assertTrue(Thread.interrupted()); |
384 |
|
|
checkCancelled(f); |
385 |
|
|
} |
386 |
|
|
|
387 |
|
|
f = fibActions[2]; |
388 |
jsr166 |
1.28 |
myself.interrupt(); |
389 |
|
|
assertTrue(myself.isInterrupted()); |
390 |
jsr166 |
1.26 |
try { |
391 |
|
|
f.join(); |
392 |
|
|
shouldThrow(); |
393 |
|
|
} catch (FJException success) { |
394 |
|
|
assertTrue(Thread.interrupted()); |
395 |
|
|
checkCompletedAbnormally(f, success); |
396 |
|
|
} |
397 |
|
|
|
398 |
|
|
// test quietlyJoin() --------- |
399 |
|
|
|
400 |
|
|
f = fibActions[3]; |
401 |
jsr166 |
1.28 |
myself.interrupt(); |
402 |
|
|
assertTrue(myself.isInterrupted()); |
403 |
jsr166 |
1.26 |
f.quietlyJoin(); |
404 |
|
|
assertTrue(Thread.interrupted()); |
405 |
|
|
assertEquals(21, f.result); |
406 |
|
|
checkCompletedNormally(f); |
407 |
|
|
|
408 |
|
|
f = fibActions[4]; |
409 |
jsr166 |
1.28 |
myself.interrupt(); |
410 |
|
|
assertTrue(myself.isInterrupted()); |
411 |
jsr166 |
1.26 |
f.quietlyJoin(); |
412 |
|
|
assertTrue(Thread.interrupted()); |
413 |
|
|
checkCancelled(f); |
414 |
|
|
|
415 |
|
|
f = fibActions[5]; |
416 |
jsr166 |
1.28 |
myself.interrupt(); |
417 |
|
|
assertTrue(myself.isInterrupted()); |
418 |
jsr166 |
1.26 |
f.quietlyJoin(); |
419 |
|
|
assertTrue(Thread.interrupted()); |
420 |
|
|
assertTrue(f.getException() instanceof FJException); |
421 |
|
|
checkCompletedAbnormally(f, f.getException()); |
422 |
|
|
}}; |
423 |
|
|
|
424 |
|
|
Thread t; |
425 |
|
|
|
426 |
|
|
t = newStartedThread(r); |
427 |
|
|
testInvokeOnPool(mainPool(), a); |
428 |
|
|
awaitTermination(t, LONG_DELAY_MS); |
429 |
|
|
|
430 |
|
|
a.reinitialize(); |
431 |
|
|
t = newStartedThread(r); |
432 |
|
|
testInvokeOnPool(singletonPool(), a); |
433 |
|
|
awaitTermination(t, LONG_DELAY_MS); |
434 |
|
|
} |
435 |
|
|
|
436 |
|
|
/** |
437 |
dl |
1.1 |
* get of a forked task returns when task completes |
438 |
|
|
*/ |
439 |
|
|
public void testForkGet() { |
440 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
441 |
jsr166 |
1.39 |
protected void realCompute() throws Exception { |
442 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
443 |
|
|
assertSame(f, f.fork()); |
444 |
|
|
assertNull(f.get()); |
445 |
|
|
assertEquals(21, f.result); |
446 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
447 |
jsr166 |
1.7 |
}}; |
448 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
449 |
dl |
1.1 |
} |
450 |
|
|
|
451 |
jsr166 |
1.2 |
/** |
452 |
dl |
1.1 |
* timed get of a forked task returns when task completes |
453 |
|
|
*/ |
454 |
|
|
public void testForkTimedGet() { |
455 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
456 |
jsr166 |
1.39 |
protected void realCompute() throws Exception { |
457 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
458 |
|
|
assertSame(f, f.fork()); |
459 |
jsr166 |
1.19 |
assertNull(f.get(5L, SECONDS)); |
460 |
jsr166 |
1.18 |
assertEquals(21, f.result); |
461 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
462 |
jsr166 |
1.7 |
}}; |
463 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
464 |
dl |
1.1 |
} |
465 |
|
|
|
466 |
jsr166 |
1.2 |
/** |
467 |
dl |
1.1 |
* timed get with null time unit throws NPE |
468 |
|
|
*/ |
469 |
|
|
public void testForkTimedGetNPE() { |
470 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
471 |
jsr166 |
1.39 |
protected void realCompute() throws Exception { |
472 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
473 |
|
|
assertSame(f, f.fork()); |
474 |
jsr166 |
1.8 |
try { |
475 |
|
|
f.get(5L, null); |
476 |
|
|
shouldThrow(); |
477 |
jsr166 |
1.18 |
} catch (NullPointerException success) {} |
478 |
jsr166 |
1.8 |
}}; |
479 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
480 |
dl |
1.1 |
} |
481 |
|
|
|
482 |
jsr166 |
1.2 |
/** |
483 |
dl |
1.1 |
* quietlyJoin of a forked task returns when task completes |
484 |
|
|
*/ |
485 |
|
|
public void testForkQuietlyJoin() { |
486 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
487 |
jsr166 |
1.39 |
protected void realCompute() { |
488 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
489 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
490 |
jsr166 |
1.7 |
f.quietlyJoin(); |
491 |
jsr166 |
1.18 |
assertEquals(21, f.result); |
492 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
493 |
jsr166 |
1.7 |
}}; |
494 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
495 |
dl |
1.1 |
} |
496 |
|
|
|
497 |
jsr166 |
1.2 |
/** |
498 |
dl |
1.1 |
* helpQuiesce returns when tasks are complete. |
499 |
|
|
* getQueuedTaskCount returns 0 when quiescent |
500 |
|
|
*/ |
501 |
|
|
public void testForkHelpQuiesce() { |
502 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
503 |
jsr166 |
1.39 |
protected void realCompute() { |
504 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
505 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
506 |
jsr166 |
1.31 |
helpQuiesce(); |
507 |
dl |
1.41 |
while (!f.isDone()) // wait out race |
508 |
|
|
; |
509 |
jsr166 |
1.18 |
assertEquals(21, f.result); |
510 |
|
|
assertEquals(0, getQueuedTaskCount()); |
511 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
512 |
jsr166 |
1.7 |
}}; |
513 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
514 |
dl |
1.1 |
} |
515 |
|
|
|
516 |
jsr166 |
1.2 |
/** |
517 |
dl |
1.1 |
* invoke task throws exception when task completes abnormally |
518 |
|
|
*/ |
519 |
|
|
public void testAbnormalInvoke() { |
520 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
521 |
jsr166 |
1.39 |
protected void realCompute() { |
522 |
jsr166 |
1.18 |
FailingFibAction f = new FailingFibAction(8); |
523 |
jsr166 |
1.7 |
try { |
524 |
|
|
f.invoke(); |
525 |
|
|
shouldThrow(); |
526 |
jsr166 |
1.19 |
} catch (FJException success) { |
527 |
jsr166 |
1.21 |
checkCompletedAbnormally(f, success); |
528 |
jsr166 |
1.19 |
} |
529 |
jsr166 |
1.7 |
}}; |
530 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
531 |
dl |
1.1 |
} |
532 |
|
|
|
533 |
jsr166 |
1.2 |
/** |
534 |
jsr166 |
1.4 |
* quietlyInvoke task returns when task completes abnormally |
535 |
dl |
1.1 |
*/ |
536 |
|
|
public void testAbnormalQuietlyInvoke() { |
537 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
538 |
jsr166 |
1.39 |
protected void realCompute() { |
539 |
jsr166 |
1.7 |
FailingFibAction f = new FailingFibAction(8); |
540 |
|
|
f.quietlyInvoke(); |
541 |
jsr166 |
1.19 |
assertTrue(f.getException() instanceof FJException); |
542 |
jsr166 |
1.21 |
checkCompletedAbnormally(f, f.getException()); |
543 |
jsr166 |
1.7 |
}}; |
544 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
545 |
dl |
1.1 |
} |
546 |
|
|
|
547 |
jsr166 |
1.2 |
/** |
548 |
dl |
1.1 |
* join of a forked task throws exception when task completes abnormally |
549 |
|
|
*/ |
550 |
|
|
public void testAbnormalForkJoin() { |
551 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
552 |
jsr166 |
1.39 |
protected void realCompute() { |
553 |
jsr166 |
1.18 |
FailingFibAction f = new FailingFibAction(8); |
554 |
|
|
assertSame(f, f.fork()); |
555 |
jsr166 |
1.7 |
try { |
556 |
|
|
f.join(); |
557 |
|
|
shouldThrow(); |
558 |
jsr166 |
1.19 |
} catch (FJException success) { |
559 |
jsr166 |
1.21 |
checkCompletedAbnormally(f, success); |
560 |
jsr166 |
1.19 |
} |
561 |
jsr166 |
1.7 |
}}; |
562 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
563 |
dl |
1.1 |
} |
564 |
|
|
|
565 |
jsr166 |
1.2 |
/** |
566 |
dl |
1.1 |
* get of a forked task throws exception when task completes abnormally |
567 |
|
|
*/ |
568 |
|
|
public void testAbnormalForkGet() { |
569 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
570 |
jsr166 |
1.39 |
protected void realCompute() throws Exception { |
571 |
jsr166 |
1.18 |
FailingFibAction f = new FailingFibAction(8); |
572 |
|
|
assertSame(f, f.fork()); |
573 |
jsr166 |
1.7 |
try { |
574 |
|
|
f.get(); |
575 |
|
|
shouldThrow(); |
576 |
jsr166 |
1.19 |
} catch (ExecutionException success) { |
577 |
jsr166 |
1.21 |
Throwable cause = success.getCause(); |
578 |
|
|
assertTrue(cause instanceof FJException); |
579 |
|
|
checkCompletedAbnormally(f, cause); |
580 |
jsr166 |
1.19 |
} |
581 |
jsr166 |
1.7 |
}}; |
582 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
583 |
dl |
1.1 |
} |
584 |
|
|
|
585 |
jsr166 |
1.2 |
/** |
586 |
dl |
1.1 |
* timed get of a forked task throws exception when task completes abnormally |
587 |
|
|
*/ |
588 |
|
|
public void testAbnormalForkTimedGet() { |
589 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
590 |
jsr166 |
1.39 |
protected void realCompute() throws Exception { |
591 |
jsr166 |
1.18 |
FailingFibAction f = new FailingFibAction(8); |
592 |
|
|
assertSame(f, f.fork()); |
593 |
jsr166 |
1.7 |
try { |
594 |
jsr166 |
1.42 |
f.get(5L, SECONDS); |
595 |
jsr166 |
1.7 |
shouldThrow(); |
596 |
jsr166 |
1.19 |
} catch (ExecutionException success) { |
597 |
jsr166 |
1.21 |
Throwable cause = success.getCause(); |
598 |
|
|
assertTrue(cause instanceof FJException); |
599 |
|
|
checkCompletedAbnormally(f, cause); |
600 |
jsr166 |
1.19 |
} |
601 |
jsr166 |
1.7 |
}}; |
602 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
603 |
dl |
1.1 |
} |
604 |
|
|
|
605 |
jsr166 |
1.2 |
/** |
606 |
dl |
1.1 |
* quietlyJoin of a forked task returns when task completes abnormally |
607 |
|
|
*/ |
608 |
|
|
public void testAbnormalForkQuietlyJoin() { |
609 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
610 |
jsr166 |
1.39 |
protected void realCompute() { |
611 |
jsr166 |
1.7 |
FailingFibAction f = new FailingFibAction(8); |
612 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
613 |
jsr166 |
1.7 |
f.quietlyJoin(); |
614 |
jsr166 |
1.18 |
assertTrue(f.getException() instanceof FJException); |
615 |
jsr166 |
1.21 |
checkCompletedAbnormally(f, f.getException()); |
616 |
jsr166 |
1.7 |
}}; |
617 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
618 |
dl |
1.1 |
} |
619 |
|
|
|
620 |
jsr166 |
1.2 |
/** |
621 |
dl |
1.1 |
* invoke task throws exception when task cancelled |
622 |
|
|
*/ |
623 |
|
|
public void testCancelledInvoke() { |
624 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
625 |
jsr166 |
1.39 |
protected void realCompute() { |
626 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
627 |
|
|
assertTrue(f.cancel(true)); |
628 |
jsr166 |
1.7 |
try { |
629 |
|
|
f.invoke(); |
630 |
|
|
shouldThrow(); |
631 |
jsr166 |
1.19 |
} catch (CancellationException success) { |
632 |
|
|
checkCancelled(f); |
633 |
|
|
} |
634 |
jsr166 |
1.7 |
}}; |
635 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
636 |
dl |
1.1 |
} |
637 |
|
|
|
638 |
jsr166 |
1.2 |
/** |
639 |
dl |
1.1 |
* join of a forked task throws exception when task cancelled |
640 |
|
|
*/ |
641 |
|
|
public void testCancelledForkJoin() { |
642 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
643 |
jsr166 |
1.39 |
protected void realCompute() { |
644 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
645 |
|
|
assertTrue(f.cancel(true)); |
646 |
|
|
assertSame(f, f.fork()); |
647 |
jsr166 |
1.7 |
try { |
648 |
|
|
f.join(); |
649 |
|
|
shouldThrow(); |
650 |
jsr166 |
1.19 |
} catch (CancellationException success) { |
651 |
|
|
checkCancelled(f); |
652 |
|
|
} |
653 |
jsr166 |
1.7 |
}}; |
654 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
655 |
dl |
1.1 |
} |
656 |
|
|
|
657 |
jsr166 |
1.2 |
/** |
658 |
dl |
1.1 |
* get of a forked task throws exception when task cancelled |
659 |
|
|
*/ |
660 |
|
|
public void testCancelledForkGet() { |
661 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
662 |
jsr166 |
1.39 |
protected void realCompute() throws Exception { |
663 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
664 |
|
|
assertTrue(f.cancel(true)); |
665 |
|
|
assertSame(f, f.fork()); |
666 |
jsr166 |
1.7 |
try { |
667 |
|
|
f.get(); |
668 |
|
|
shouldThrow(); |
669 |
jsr166 |
1.19 |
} catch (CancellationException success) { |
670 |
|
|
checkCancelled(f); |
671 |
|
|
} |
672 |
jsr166 |
1.7 |
}}; |
673 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
674 |
dl |
1.1 |
} |
675 |
|
|
|
676 |
jsr166 |
1.2 |
/** |
677 |
dl |
1.1 |
* timed get of a forked task throws exception when task cancelled |
678 |
|
|
*/ |
679 |
|
|
public void testCancelledForkTimedGet() { |
680 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
681 |
jsr166 |
1.39 |
protected void realCompute() throws Exception { |
682 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
683 |
|
|
assertTrue(f.cancel(true)); |
684 |
|
|
assertSame(f, f.fork()); |
685 |
jsr166 |
1.7 |
try { |
686 |
jsr166 |
1.19 |
f.get(5L, SECONDS); |
687 |
jsr166 |
1.7 |
shouldThrow(); |
688 |
jsr166 |
1.19 |
} catch (CancellationException success) { |
689 |
|
|
checkCancelled(f); |
690 |
|
|
} |
691 |
jsr166 |
1.7 |
}}; |
692 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
693 |
dl |
1.1 |
} |
694 |
|
|
|
695 |
jsr166 |
1.2 |
/** |
696 |
dl |
1.1 |
* quietlyJoin of a forked task returns when task cancelled |
697 |
|
|
*/ |
698 |
|
|
public void testCancelledForkQuietlyJoin() { |
699 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
700 |
jsr166 |
1.39 |
protected void realCompute() { |
701 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
702 |
jsr166 |
1.18 |
assertTrue(f.cancel(true)); |
703 |
|
|
assertSame(f, f.fork()); |
704 |
jsr166 |
1.7 |
f.quietlyJoin(); |
705 |
jsr166 |
1.19 |
checkCancelled(f); |
706 |
jsr166 |
1.7 |
}}; |
707 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
708 |
dl |
1.1 |
} |
709 |
|
|
|
710 |
|
|
/** |
711 |
|
|
* getPool of executing task returns its pool |
712 |
|
|
*/ |
713 |
|
|
public void testGetPool() { |
714 |
jsr166 |
1.14 |
final ForkJoinPool mainPool = mainPool(); |
715 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
716 |
jsr166 |
1.39 |
protected void realCompute() { |
717 |
jsr166 |
1.18 |
assertSame(mainPool, getPool()); |
718 |
jsr166 |
1.7 |
}}; |
719 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool, a); |
720 |
dl |
1.1 |
} |
721 |
|
|
|
722 |
|
|
/** |
723 |
|
|
* getPool of non-FJ task returns null |
724 |
|
|
*/ |
725 |
|
|
public void testGetPool2() { |
726 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
727 |
jsr166 |
1.39 |
protected void realCompute() { |
728 |
jsr166 |
1.18 |
assertNull(getPool()); |
729 |
jsr166 |
1.7 |
}}; |
730 |
jsr166 |
1.16 |
assertNull(a.invoke()); |
731 |
dl |
1.1 |
} |
732 |
|
|
|
733 |
|
|
/** |
734 |
|
|
* inForkJoinPool of executing task returns true |
735 |
|
|
*/ |
736 |
|
|
public void testInForkJoinPool() { |
737 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
738 |
jsr166 |
1.39 |
protected void realCompute() { |
739 |
jsr166 |
1.18 |
assertTrue(inForkJoinPool()); |
740 |
jsr166 |
1.7 |
}}; |
741 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
742 |
dl |
1.1 |
} |
743 |
|
|
|
744 |
|
|
/** |
745 |
|
|
* inForkJoinPool of non-FJ task returns false |
746 |
|
|
*/ |
747 |
|
|
public void testInForkJoinPool2() { |
748 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
749 |
jsr166 |
1.39 |
protected void realCompute() { |
750 |
jsr166 |
1.18 |
assertFalse(inForkJoinPool()); |
751 |
jsr166 |
1.7 |
}}; |
752 |
jsr166 |
1.16 |
assertNull(a.invoke()); |
753 |
dl |
1.1 |
} |
754 |
|
|
|
755 |
|
|
/** |
756 |
|
|
* getPool of current thread in pool returns its pool |
757 |
|
|
*/ |
758 |
|
|
public void testWorkerGetPool() { |
759 |
jsr166 |
1.14 |
final ForkJoinPool mainPool = mainPool(); |
760 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
761 |
jsr166 |
1.39 |
protected void realCompute() { |
762 |
jsr166 |
1.7 |
ForkJoinWorkerThread w = |
763 |
jsr166 |
1.14 |
(ForkJoinWorkerThread) Thread.currentThread(); |
764 |
jsr166 |
1.18 |
assertSame(mainPool, w.getPool()); |
765 |
jsr166 |
1.7 |
}}; |
766 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool, a); |
767 |
dl |
1.1 |
} |
768 |
|
|
|
769 |
|
|
/** |
770 |
|
|
* getPoolIndex of current thread in pool returns 0 <= value < poolSize |
771 |
|
|
*/ |
772 |
|
|
public void testWorkerGetPoolIndex() { |
773 |
jsr166 |
1.14 |
final ForkJoinPool mainPool = mainPool(); |
774 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
775 |
jsr166 |
1.39 |
protected void realCompute() { |
776 |
jsr166 |
1.7 |
ForkJoinWorkerThread w = |
777 |
jsr166 |
1.28 |
(ForkJoinWorkerThread) Thread.currentThread(); |
778 |
jsr166 |
1.19 |
assertTrue(w.getPoolIndex() >= 0); |
779 |
dl |
1.29 |
// pool size can shrink after assigning index, so cannot check |
780 |
|
|
// assertTrue(w.getPoolIndex() < mainPool.getPoolSize()); |
781 |
jsr166 |
1.7 |
}}; |
782 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool, a); |
783 |
dl |
1.1 |
} |
784 |
|
|
|
785 |
|
|
/** |
786 |
|
|
* setRawResult(null) succeeds |
787 |
|
|
*/ |
788 |
|
|
public void testSetRawResult() { |
789 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
790 |
jsr166 |
1.39 |
protected void realCompute() { |
791 |
jsr166 |
1.7 |
setRawResult(null); |
792 |
jsr166 |
1.23 |
assertNull(getRawResult()); |
793 |
jsr166 |
1.7 |
}}; |
794 |
jsr166 |
1.16 |
assertNull(a.invoke()); |
795 |
dl |
1.1 |
} |
796 |
|
|
|
797 |
jsr166 |
1.2 |
/** |
798 |
jsr166 |
1.33 |
* A reinitialized normally completed task may be re-invoked |
799 |
dl |
1.1 |
*/ |
800 |
|
|
public void testReinitialize() { |
801 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
802 |
jsr166 |
1.39 |
protected void realCompute() { |
803 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
804 |
jsr166 |
1.19 |
checkNotDone(f); |
805 |
|
|
|
806 |
|
|
for (int i = 0; i < 3; i++) { |
807 |
|
|
assertNull(f.invoke()); |
808 |
|
|
assertEquals(21, f.result); |
809 |
|
|
checkCompletedNormally(f); |
810 |
|
|
f.reinitialize(); |
811 |
|
|
checkNotDone(f); |
812 |
|
|
} |
813 |
jsr166 |
1.7 |
}}; |
814 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
815 |
dl |
1.1 |
} |
816 |
|
|
|
817 |
jsr166 |
1.2 |
/** |
818 |
jsr166 |
1.33 |
* A reinitialized abnormally completed task may be re-invoked |
819 |
|
|
*/ |
820 |
|
|
public void testReinitializeAbnormal() { |
821 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
822 |
jsr166 |
1.39 |
protected void realCompute() { |
823 |
jsr166 |
1.33 |
FailingFibAction f = new FailingFibAction(8); |
824 |
|
|
checkNotDone(f); |
825 |
|
|
|
826 |
|
|
for (int i = 0; i < 3; i++) { |
827 |
|
|
try { |
828 |
|
|
f.invoke(); |
829 |
|
|
shouldThrow(); |
830 |
|
|
} catch (FJException success) { |
831 |
|
|
checkCompletedAbnormally(f, success); |
832 |
|
|
} |
833 |
|
|
f.reinitialize(); |
834 |
|
|
checkNotDone(f); |
835 |
|
|
} |
836 |
|
|
}}; |
837 |
|
|
testInvokeOnPool(mainPool(), a); |
838 |
|
|
} |
839 |
|
|
|
840 |
|
|
/** |
841 |
dl |
1.1 |
* invoke task throws exception after invoking completeExceptionally |
842 |
|
|
*/ |
843 |
|
|
public void testCompleteExceptionally() { |
844 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
845 |
jsr166 |
1.39 |
protected void realCompute() { |
846 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
847 |
|
|
f.completeExceptionally(new FJException()); |
848 |
jsr166 |
1.7 |
try { |
849 |
|
|
f.invoke(); |
850 |
|
|
shouldThrow(); |
851 |
jsr166 |
1.19 |
} catch (FJException success) { |
852 |
jsr166 |
1.21 |
checkCompletedAbnormally(f, success); |
853 |
jsr166 |
1.19 |
} |
854 |
jsr166 |
1.7 |
}}; |
855 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
856 |
dl |
1.1 |
} |
857 |
|
|
|
858 |
jsr166 |
1.2 |
/** |
859 |
dl |
1.1 |
* invoke task suppresses execution invoking complete |
860 |
|
|
*/ |
861 |
|
|
public void testComplete() { |
862 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
863 |
jsr166 |
1.39 |
protected void realCompute() { |
864 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
865 |
|
|
f.complete(null); |
866 |
jsr166 |
1.18 |
assertNull(f.invoke()); |
867 |
|
|
assertEquals(0, f.result); |
868 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
869 |
jsr166 |
1.7 |
}}; |
870 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
871 |
dl |
1.1 |
} |
872 |
|
|
|
873 |
jsr166 |
1.2 |
/** |
874 |
dl |
1.1 |
* invokeAll(t1, t2) invokes all task arguments |
875 |
|
|
*/ |
876 |
|
|
public void testInvokeAll2() { |
877 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
878 |
jsr166 |
1.39 |
protected void realCompute() { |
879 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
880 |
|
|
FibAction g = new FibAction(9); |
881 |
|
|
invokeAll(f, g); |
882 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
883 |
jsr166 |
1.18 |
assertEquals(21, f.result); |
884 |
jsr166 |
1.19 |
checkCompletedNormally(g); |
885 |
jsr166 |
1.18 |
assertEquals(34, g.result); |
886 |
jsr166 |
1.7 |
}}; |
887 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
888 |
dl |
1.1 |
} |
889 |
|
|
|
890 |
jsr166 |
1.2 |
/** |
891 |
dl |
1.1 |
* invokeAll(tasks) with 1 argument invokes task |
892 |
|
|
*/ |
893 |
|
|
public void testInvokeAll1() { |
894 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
895 |
jsr166 |
1.39 |
protected void realCompute() { |
896 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
897 |
|
|
invokeAll(f); |
898 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
899 |
jsr166 |
1.18 |
assertEquals(21, f.result); |
900 |
jsr166 |
1.7 |
}}; |
901 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
902 |
dl |
1.1 |
} |
903 |
|
|
|
904 |
jsr166 |
1.2 |
/** |
905 |
dl |
1.1 |
* invokeAll(tasks) with > 2 argument invokes tasks |
906 |
|
|
*/ |
907 |
|
|
public void testInvokeAll3() { |
908 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
909 |
jsr166 |
1.39 |
protected void realCompute() { |
910 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
911 |
|
|
FibAction g = new FibAction(9); |
912 |
|
|
FibAction h = new FibAction(7); |
913 |
|
|
invokeAll(f, g, h); |
914 |
jsr166 |
1.20 |
assertTrue(f.isDone()); |
915 |
|
|
assertTrue(g.isDone()); |
916 |
|
|
assertTrue(h.isDone()); |
917 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
918 |
jsr166 |
1.18 |
assertEquals(21, f.result); |
919 |
jsr166 |
1.19 |
checkCompletedNormally(g); |
920 |
jsr166 |
1.18 |
assertEquals(34, g.result); |
921 |
jsr166 |
1.19 |
checkCompletedNormally(g); |
922 |
jsr166 |
1.18 |
assertEquals(13, h.result); |
923 |
jsr166 |
1.7 |
}}; |
924 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
925 |
dl |
1.1 |
} |
926 |
|
|
|
927 |
jsr166 |
1.2 |
/** |
928 |
dl |
1.1 |
* invokeAll(collection) invokes all tasks in the collection |
929 |
|
|
*/ |
930 |
|
|
public void testInvokeAllCollection() { |
931 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
932 |
jsr166 |
1.39 |
protected void realCompute() { |
933 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
934 |
|
|
FibAction g = new FibAction(9); |
935 |
|
|
FibAction h = new FibAction(7); |
936 |
|
|
HashSet set = new HashSet(); |
937 |
|
|
set.add(f); |
938 |
|
|
set.add(g); |
939 |
|
|
set.add(h); |
940 |
|
|
invokeAll(set); |
941 |
jsr166 |
1.20 |
assertTrue(f.isDone()); |
942 |
|
|
assertTrue(g.isDone()); |
943 |
|
|
assertTrue(h.isDone()); |
944 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
945 |
jsr166 |
1.18 |
assertEquals(21, f.result); |
946 |
jsr166 |
1.19 |
checkCompletedNormally(g); |
947 |
jsr166 |
1.18 |
assertEquals(34, g.result); |
948 |
jsr166 |
1.19 |
checkCompletedNormally(g); |
949 |
jsr166 |
1.18 |
assertEquals(13, h.result); |
950 |
jsr166 |
1.7 |
}}; |
951 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
952 |
dl |
1.1 |
} |
953 |
|
|
|
954 |
jsr166 |
1.2 |
/** |
955 |
dl |
1.1 |
* invokeAll(tasks) with any null task throws NPE |
956 |
|
|
*/ |
957 |
|
|
public void testInvokeAllNPE() { |
958 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
959 |
jsr166 |
1.39 |
protected void realCompute() { |
960 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
961 |
|
|
FibAction g = new FibAction(9); |
962 |
|
|
FibAction h = null; |
963 |
jsr166 |
1.7 |
try { |
964 |
|
|
invokeAll(f, g, h); |
965 |
|
|
shouldThrow(); |
966 |
jsr166 |
1.18 |
} catch (NullPointerException success) {} |
967 |
jsr166 |
1.7 |
}}; |
968 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
969 |
dl |
1.1 |
} |
970 |
|
|
|
971 |
jsr166 |
1.2 |
/** |
972 |
dl |
1.1 |
* invokeAll(t1, t2) throw exception if any task does |
973 |
|
|
*/ |
974 |
|
|
public void testAbnormalInvokeAll2() { |
975 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
976 |
jsr166 |
1.39 |
protected void realCompute() { |
977 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
978 |
|
|
FailingFibAction g = new FailingFibAction(9); |
979 |
jsr166 |
1.7 |
try { |
980 |
|
|
invokeAll(f, g); |
981 |
|
|
shouldThrow(); |
982 |
jsr166 |
1.19 |
} catch (FJException success) { |
983 |
jsr166 |
1.21 |
checkCompletedAbnormally(g, success); |
984 |
jsr166 |
1.19 |
} |
985 |
jsr166 |
1.7 |
}}; |
986 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
987 |
dl |
1.1 |
} |
988 |
|
|
|
989 |
jsr166 |
1.2 |
/** |
990 |
dl |
1.1 |
* invokeAll(tasks) with 1 argument throws exception if task does |
991 |
|
|
*/ |
992 |
|
|
public void testAbnormalInvokeAll1() { |
993 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
994 |
jsr166 |
1.39 |
protected void realCompute() { |
995 |
jsr166 |
1.18 |
FailingFibAction g = new FailingFibAction(9); |
996 |
jsr166 |
1.7 |
try { |
997 |
|
|
invokeAll(g); |
998 |
|
|
shouldThrow(); |
999 |
jsr166 |
1.19 |
} catch (FJException success) { |
1000 |
jsr166 |
1.21 |
checkCompletedAbnormally(g, success); |
1001 |
jsr166 |
1.19 |
} |
1002 |
jsr166 |
1.7 |
}}; |
1003 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
1004 |
dl |
1.1 |
} |
1005 |
|
|
|
1006 |
jsr166 |
1.2 |
/** |
1007 |
dl |
1.1 |
* invokeAll(tasks) with > 2 argument throws exception if any task does |
1008 |
|
|
*/ |
1009 |
|
|
public void testAbnormalInvokeAll3() { |
1010 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
1011 |
jsr166 |
1.39 |
protected void realCompute() { |
1012 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
1013 |
|
|
FailingFibAction g = new FailingFibAction(9); |
1014 |
|
|
FibAction h = new FibAction(7); |
1015 |
jsr166 |
1.7 |
try { |
1016 |
|
|
invokeAll(f, g, h); |
1017 |
|
|
shouldThrow(); |
1018 |
jsr166 |
1.19 |
} catch (FJException success) { |
1019 |
jsr166 |
1.21 |
checkCompletedAbnormally(g, success); |
1020 |
jsr166 |
1.19 |
} |
1021 |
jsr166 |
1.7 |
}}; |
1022 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
1023 |
dl |
1.1 |
} |
1024 |
|
|
|
1025 |
jsr166 |
1.2 |
/** |
1026 |
jsr166 |
1.3 |
* invokeAll(collection) throws exception if any task does |
1027 |
dl |
1.1 |
*/ |
1028 |
|
|
public void testAbnormalInvokeAllCollection() { |
1029 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
1030 |
jsr166 |
1.39 |
protected void realCompute() { |
1031 |
jsr166 |
1.18 |
FailingFibAction f = new FailingFibAction(8); |
1032 |
|
|
FibAction g = new FibAction(9); |
1033 |
|
|
FibAction h = new FibAction(7); |
1034 |
|
|
HashSet set = new HashSet(); |
1035 |
|
|
set.add(f); |
1036 |
|
|
set.add(g); |
1037 |
|
|
set.add(h); |
1038 |
jsr166 |
1.7 |
try { |
1039 |
|
|
invokeAll(set); |
1040 |
|
|
shouldThrow(); |
1041 |
jsr166 |
1.19 |
} catch (FJException success) { |
1042 |
jsr166 |
1.21 |
checkCompletedAbnormally(f, success); |
1043 |
jsr166 |
1.19 |
} |
1044 |
jsr166 |
1.7 |
}}; |
1045 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
1046 |
dl |
1.1 |
} |
1047 |
|
|
|
1048 |
jsr166 |
1.2 |
/** |
1049 |
dl |
1.1 |
* tryUnfork returns true for most recent unexecuted task, |
1050 |
|
|
* and suppresses execution |
1051 |
|
|
*/ |
1052 |
|
|
public void testTryUnfork() { |
1053 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
1054 |
jsr166 |
1.39 |
protected void realCompute() { |
1055 |
jsr166 |
1.7 |
FibAction g = new FibAction(9); |
1056 |
jsr166 |
1.18 |
assertSame(g, g.fork()); |
1057 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
1058 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
1059 |
|
|
assertTrue(f.tryUnfork()); |
1060 |
jsr166 |
1.7 |
helpQuiesce(); |
1061 |
jsr166 |
1.19 |
checkNotDone(f); |
1062 |
|
|
checkCompletedNormally(g); |
1063 |
jsr166 |
1.7 |
}}; |
1064 |
jsr166 |
1.14 |
testInvokeOnPool(singletonPool(), a); |
1065 |
dl |
1.1 |
} |
1066 |
|
|
|
1067 |
jsr166 |
1.2 |
/** |
1068 |
dl |
1.1 |
* getSurplusQueuedTaskCount returns > 0 when |
1069 |
|
|
* there are more tasks than threads |
1070 |
|
|
*/ |
1071 |
|
|
public void testGetSurplusQueuedTaskCount() { |
1072 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
1073 |
jsr166 |
1.39 |
protected void realCompute() { |
1074 |
jsr166 |
1.7 |
FibAction h = new FibAction(7); |
1075 |
jsr166 |
1.18 |
assertSame(h, h.fork()); |
1076 |
jsr166 |
1.7 |
FibAction g = new FibAction(9); |
1077 |
jsr166 |
1.18 |
assertSame(g, g.fork()); |
1078 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
1079 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
1080 |
|
|
assertTrue(getSurplusQueuedTaskCount() > 0); |
1081 |
jsr166 |
1.7 |
helpQuiesce(); |
1082 |
jsr166 |
1.21 |
assertEquals(0, getSurplusQueuedTaskCount()); |
1083 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
1084 |
|
|
checkCompletedNormally(g); |
1085 |
|
|
checkCompletedNormally(h); |
1086 |
jsr166 |
1.7 |
}}; |
1087 |
jsr166 |
1.14 |
testInvokeOnPool(singletonPool(), a); |
1088 |
dl |
1.1 |
} |
1089 |
|
|
|
1090 |
jsr166 |
1.2 |
/** |
1091 |
dl |
1.1 |
* peekNextLocalTask returns most recent unexecuted task. |
1092 |
|
|
*/ |
1093 |
|
|
public void testPeekNextLocalTask() { |
1094 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
1095 |
jsr166 |
1.39 |
protected void realCompute() { |
1096 |
jsr166 |
1.7 |
FibAction g = new FibAction(9); |
1097 |
jsr166 |
1.18 |
assertSame(g, g.fork()); |
1098 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
1099 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
1100 |
|
|
assertSame(f, peekNextLocalTask()); |
1101 |
|
|
assertNull(f.join()); |
1102 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
1103 |
jsr166 |
1.7 |
helpQuiesce(); |
1104 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
1105 |
|
|
checkCompletedNormally(g); |
1106 |
jsr166 |
1.7 |
}}; |
1107 |
jsr166 |
1.14 |
testInvokeOnPool(singletonPool(), a); |
1108 |
dl |
1.1 |
} |
1109 |
|
|
|
1110 |
jsr166 |
1.2 |
/** |
1111 |
dl |
1.1 |
* pollNextLocalTask returns most recent unexecuted task |
1112 |
|
|
* without executing it |
1113 |
|
|
*/ |
1114 |
|
|
public void testPollNextLocalTask() { |
1115 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
1116 |
jsr166 |
1.39 |
protected void realCompute() { |
1117 |
jsr166 |
1.7 |
FibAction g = new FibAction(9); |
1118 |
jsr166 |
1.18 |
assertSame(g, g.fork()); |
1119 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
1120 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
1121 |
|
|
assertSame(f, pollNextLocalTask()); |
1122 |
jsr166 |
1.7 |
helpQuiesce(); |
1123 |
jsr166 |
1.19 |
checkNotDone(f); |
1124 |
|
|
checkCompletedNormally(g); |
1125 |
jsr166 |
1.7 |
}}; |
1126 |
jsr166 |
1.14 |
testInvokeOnPool(singletonPool(), a); |
1127 |
dl |
1.1 |
} |
1128 |
|
|
|
1129 |
jsr166 |
1.2 |
/** |
1130 |
jsr166 |
1.19 |
* pollTask returns an unexecuted task without executing it |
1131 |
dl |
1.1 |
*/ |
1132 |
|
|
public void testPollTask() { |
1133 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
1134 |
jsr166 |
1.39 |
protected void realCompute() { |
1135 |
jsr166 |
1.7 |
FibAction g = new FibAction(9); |
1136 |
jsr166 |
1.18 |
assertSame(g, g.fork()); |
1137 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
1138 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
1139 |
|
|
assertSame(f, pollTask()); |
1140 |
jsr166 |
1.7 |
helpQuiesce(); |
1141 |
jsr166 |
1.19 |
checkNotDone(f); |
1142 |
|
|
checkCompletedNormally(g); |
1143 |
jsr166 |
1.7 |
}}; |
1144 |
jsr166 |
1.14 |
testInvokeOnPool(singletonPool(), a); |
1145 |
dl |
1.1 |
} |
1146 |
|
|
|
1147 |
jsr166 |
1.2 |
/** |
1148 |
dl |
1.1 |
* peekNextLocalTask returns least recent unexecuted task in async mode |
1149 |
|
|
*/ |
1150 |
|
|
public void testPeekNextLocalTaskAsync() { |
1151 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
1152 |
jsr166 |
1.39 |
protected void realCompute() { |
1153 |
jsr166 |
1.7 |
FibAction g = new FibAction(9); |
1154 |
jsr166 |
1.18 |
assertSame(g, g.fork()); |
1155 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
1156 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
1157 |
|
|
assertSame(g, peekNextLocalTask()); |
1158 |
|
|
assertNull(f.join()); |
1159 |
jsr166 |
1.7 |
helpQuiesce(); |
1160 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
1161 |
|
|
checkCompletedNormally(g); |
1162 |
jsr166 |
1.7 |
}}; |
1163 |
jsr166 |
1.14 |
testInvokeOnPool(asyncSingletonPool(), a); |
1164 |
dl |
1.1 |
} |
1165 |
|
|
|
1166 |
jsr166 |
1.2 |
/** |
1167 |
jsr166 |
1.19 |
* pollNextLocalTask returns least recent unexecuted task without |
1168 |
|
|
* executing it, in async mode |
1169 |
dl |
1.1 |
*/ |
1170 |
|
|
public void testPollNextLocalTaskAsync() { |
1171 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
1172 |
jsr166 |
1.39 |
protected void realCompute() { |
1173 |
jsr166 |
1.7 |
FibAction g = new FibAction(9); |
1174 |
jsr166 |
1.18 |
assertSame(g, g.fork()); |
1175 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
1176 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
1177 |
|
|
assertSame(g, pollNextLocalTask()); |
1178 |
jsr166 |
1.7 |
helpQuiesce(); |
1179 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
1180 |
|
|
checkNotDone(g); |
1181 |
jsr166 |
1.7 |
}}; |
1182 |
jsr166 |
1.14 |
testInvokeOnPool(asyncSingletonPool(), a); |
1183 |
dl |
1.1 |
} |
1184 |
|
|
|
1185 |
jsr166 |
1.2 |
/** |
1186 |
jsr166 |
1.19 |
* pollTask returns an unexecuted task without executing it, in |
1187 |
|
|
* async mode |
1188 |
dl |
1.1 |
*/ |
1189 |
|
|
public void testPollTaskAsync() { |
1190 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
1191 |
jsr166 |
1.39 |
protected void realCompute() { |
1192 |
jsr166 |
1.7 |
FibAction g = new FibAction(9); |
1193 |
jsr166 |
1.18 |
assertSame(g, g.fork()); |
1194 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
1195 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
1196 |
|
|
assertSame(g, pollTask()); |
1197 |
jsr166 |
1.7 |
helpQuiesce(); |
1198 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
1199 |
|
|
checkNotDone(g); |
1200 |
jsr166 |
1.7 |
}}; |
1201 |
jsr166 |
1.14 |
testInvokeOnPool(asyncSingletonPool(), a); |
1202 |
dl |
1.1 |
} |
1203 |
|
|
|
1204 |
jsr166 |
1.37 |
/** Demo from RecursiveAction javadoc */ |
1205 |
jsr166 |
1.34 |
static class SortTask extends RecursiveAction { |
1206 |
|
|
final long[] array; final int lo, hi; |
1207 |
|
|
SortTask(long[] array, int lo, int hi) { |
1208 |
|
|
this.array = array; this.lo = lo; this.hi = hi; |
1209 |
|
|
} |
1210 |
jsr166 |
1.37 |
SortTask(long[] array) { this(array, 0, array.length); } |
1211 |
jsr166 |
1.34 |
protected void compute() { |
1212 |
|
|
if (hi - lo < THRESHOLD) |
1213 |
jsr166 |
1.37 |
sortSequentially(lo, hi); |
1214 |
jsr166 |
1.34 |
else { |
1215 |
|
|
int mid = (lo + hi) >>> 1; |
1216 |
|
|
invokeAll(new SortTask(array, lo, mid), |
1217 |
|
|
new SortTask(array, mid, hi)); |
1218 |
jsr166 |
1.37 |
merge(lo, mid, hi); |
1219 |
jsr166 |
1.34 |
} |
1220 |
|
|
} |
1221 |
jsr166 |
1.37 |
// implementation details follow: |
1222 |
jsr166 |
1.38 |
static final int THRESHOLD = 100; |
1223 |
jsr166 |
1.37 |
void sortSequentially(int lo, int hi) { |
1224 |
jsr166 |
1.34 |
Arrays.sort(array, lo, hi); |
1225 |
|
|
} |
1226 |
jsr166 |
1.37 |
void merge(int lo, int mid, int hi) { |
1227 |
jsr166 |
1.36 |
long[] buf = Arrays.copyOfRange(array, lo, mid); |
1228 |
|
|
for (int i = 0, j = lo, k = mid; i < buf.length; j++) |
1229 |
|
|
array[j] = (k == hi || buf[i] < array[k]) ? |
1230 |
|
|
buf[i++] : array[k++]; |
1231 |
jsr166 |
1.34 |
} |
1232 |
|
|
} |
1233 |
|
|
|
1234 |
|
|
/** |
1235 |
|
|
* SortTask demo works as advertised |
1236 |
|
|
*/ |
1237 |
|
|
public void testSortTaskDemo() { |
1238 |
|
|
ThreadLocalRandom rnd = ThreadLocalRandom.current(); |
1239 |
jsr166 |
1.35 |
long[] array = new long[1007]; |
1240 |
jsr166 |
1.34 |
for (int i = 0; i < array.length; i++) |
1241 |
|
|
array[i] = rnd.nextLong(); |
1242 |
|
|
long[] arrayClone = array.clone(); |
1243 |
jsr166 |
1.37 |
testInvokeOnPool(mainPool(), new SortTask(array)); |
1244 |
jsr166 |
1.34 |
Arrays.sort(arrayClone); |
1245 |
|
|
assertTrue(Arrays.equals(array, arrayClone)); |
1246 |
|
|
} |
1247 |
dl |
1.1 |
} |