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 |
4 |
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; |
8 |
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9 |
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import java.util.Arrays; |
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import java.util.HashSet; |
11 |
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; |
20 |
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21 |
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import junit.framework.Test; |
22 |
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import junit.framework.TestSuite; |
23 |
dl |
1.1 |
|
24 |
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public class RecursiveActionTest extends JSR166TestCase { |
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public static void main(String[] args) { |
27 |
jsr166 |
1.44 |
main(suite(), args); |
28 |
dl |
1.1 |
} |
29 |
jsr166 |
1.13 |
|
30 |
dl |
1.1 |
public static Test suite() { |
31 |
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() { |
39 |
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return new ForkJoinPool(1); |
40 |
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} |
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42 |
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private static ForkJoinPool asyncSingletonPool() { |
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return new ForkJoinPool(1, |
44 |
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ForkJoinPool.defaultForkJoinWorkerThreadFactory, |
45 |
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null, true); |
46 |
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} |
47 |
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48 |
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private void testInvokeOnPool(ForkJoinPool pool, RecursiveAction a) { |
49 |
jsr166 |
1.45 |
try (PoolCleaner cleaner = cleaner(pool)) { |
50 |
jsr166 |
1.19 |
checkNotDone(a); |
51 |
jsr166 |
1.18 |
|
52 |
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assertNull(pool.invoke(a)); |
53 |
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54 |
jsr166 |
1.19 |
checkCompletedNormally(a); |
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jsr166 |
1.14 |
} |
56 |
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} |
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dl |
1.1 |
|
58 |
jsr166 |
1.19 |
void checkNotDone(RecursiveAction a) { |
59 |
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assertFalse(a.isDone()); |
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assertFalse(a.isCompletedNormally()); |
61 |
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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()); |
65 |
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|
66 |
jsr166 |
1.27 |
if (! ForkJoinTask.inForkJoinPool()) { |
67 |
jsr166 |
1.19 |
Thread.currentThread().interrupt(); |
68 |
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try { |
69 |
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a.get(); |
70 |
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shouldThrow(); |
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} catch (InterruptedException success) { |
72 |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
73 |
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74 |
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Thread.currentThread().interrupt(); |
75 |
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try { |
76 |
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a.get(5L, SECONDS); |
77 |
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shouldThrow(); |
78 |
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} catch (InterruptedException success) { |
79 |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
80 |
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} |
81 |
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82 |
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try { |
83 |
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a.get(0L, SECONDS); |
84 |
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shouldThrow(); |
85 |
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} catch (TimeoutException success) { |
86 |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
87 |
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} |
88 |
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89 |
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void checkCompletedNormally(RecursiveAction a) { |
90 |
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assertTrue(a.isDone()); |
91 |
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assertFalse(a.isCancelled()); |
92 |
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assertTrue(a.isCompletedNormally()); |
93 |
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assertFalse(a.isCompletedAbnormally()); |
94 |
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assertNull(a.getException()); |
95 |
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assertNull(a.getRawResult()); |
96 |
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assertNull(a.join()); |
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jsr166 |
1.22 |
assertFalse(a.cancel(false)); |
98 |
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assertFalse(a.cancel(true)); |
99 |
jsr166 |
1.19 |
try { |
100 |
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assertNull(a.get()); |
101 |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
102 |
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try { |
103 |
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assertNull(a.get(5L, SECONDS)); |
104 |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
105 |
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} |
106 |
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107 |
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void checkCancelled(RecursiveAction a) { |
108 |
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assertTrue(a.isDone()); |
109 |
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assertTrue(a.isCancelled()); |
110 |
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assertFalse(a.isCompletedNormally()); |
111 |
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assertTrue(a.isCompletedAbnormally()); |
112 |
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assertTrue(a.getException() instanceof CancellationException); |
113 |
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assertNull(a.getRawResult()); |
114 |
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115 |
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try { |
116 |
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a.join(); |
117 |
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shouldThrow(); |
118 |
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} catch (CancellationException success) { |
119 |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
120 |
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121 |
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try { |
122 |
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a.get(); |
123 |
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shouldThrow(); |
124 |
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} catch (CancellationException success) { |
125 |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
126 |
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127 |
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try { |
128 |
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a.get(5L, SECONDS); |
129 |
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shouldThrow(); |
130 |
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} catch (CancellationException success) { |
131 |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
132 |
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} |
133 |
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|
134 |
jsr166 |
1.21 |
void checkCompletedAbnormally(RecursiveAction a, Throwable t) { |
135 |
jsr166 |
1.19 |
assertTrue(a.isDone()); |
136 |
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assertFalse(a.isCancelled()); |
137 |
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assertFalse(a.isCompletedNormally()); |
138 |
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assertTrue(a.isCompletedAbnormally()); |
139 |
dl |
1.29 |
assertSame(t.getClass(), a.getException().getClass()); |
140 |
jsr166 |
1.19 |
assertNull(a.getRawResult()); |
141 |
jsr166 |
1.22 |
assertFalse(a.cancel(false)); |
142 |
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assertFalse(a.cancel(true)); |
143 |
jsr166 |
1.19 |
|
144 |
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try { |
145 |
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a.join(); |
146 |
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shouldThrow(); |
147 |
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} catch (Throwable expected) { |
148 |
dl |
1.29 |
assertSame(expected.getClass(), t.getClass()); |
149 |
jsr166 |
1.19 |
} |
150 |
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151 |
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try { |
152 |
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a.get(); |
153 |
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shouldThrow(); |
154 |
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} catch (ExecutionException success) { |
155 |
dl |
1.29 |
assertSame(t.getClass(), success.getCause().getClass()); |
156 |
jsr166 |
1.19 |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
157 |
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158 |
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try { |
159 |
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a.get(5L, SECONDS); |
160 |
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shouldThrow(); |
161 |
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} catch (ExecutionException success) { |
162 |
dl |
1.29 |
assertSame(t.getClass(), success.getCause().getClass()); |
163 |
jsr166 |
1.19 |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
164 |
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} |
165 |
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|
166 |
dl |
1.29 |
public static final class FJException extends RuntimeException { |
167 |
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public FJException() { super(); } |
168 |
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public FJException(Throwable cause) { super(cause); } |
169 |
dl |
1.1 |
} |
170 |
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171 |
jsr166 |
1.49 |
/** A simple recursive action for testing. */ |
172 |
jsr166 |
1.18 |
final class FibAction extends CheckedRecursiveAction { |
173 |
dl |
1.1 |
final int number; |
174 |
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int result; |
175 |
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FibAction(int n) { number = n; } |
176 |
jsr166 |
1.39 |
protected void realCompute() { |
177 |
dl |
1.1 |
int n = number; |
178 |
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if (n <= 1) |
179 |
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result = n; |
180 |
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else { |
181 |
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FibAction f1 = new FibAction(n - 1); |
182 |
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FibAction f2 = new FibAction(n - 2); |
183 |
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invokeAll(f1, f2); |
184 |
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result = f1.result + f2.result; |
185 |
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} |
186 |
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} |
187 |
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} |
188 |
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|
189 |
jsr166 |
1.49 |
/** A recursive action failing in base case. */ |
190 |
jsr166 |
1.2 |
static final class FailingFibAction extends RecursiveAction { |
191 |
dl |
1.1 |
final int number; |
192 |
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int result; |
193 |
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FailingFibAction(int n) { number = n; } |
194 |
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public void compute() { |
195 |
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int n = number; |
196 |
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if (n <= 1) |
197 |
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throw new FJException(); |
198 |
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else { |
199 |
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FailingFibAction f1 = new FailingFibAction(n - 1); |
200 |
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FailingFibAction f2 = new FailingFibAction(n - 2); |
201 |
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invokeAll(f1, f2); |
202 |
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result = f1.result + f2.result; |
203 |
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} |
204 |
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} |
205 |
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} |
206 |
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|
207 |
jsr166 |
1.2 |
/** |
208 |
dl |
1.1 |
* invoke returns when task completes normally. |
209 |
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* isCompletedAbnormally and isCancelled return false for normally |
210 |
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* completed tasks. getRawResult of a RecursiveAction returns null; |
211 |
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*/ |
212 |
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public void testInvoke() { |
213 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
214 |
jsr166 |
1.39 |
protected void realCompute() { |
215 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
216 |
jsr166 |
1.18 |
assertNull(f.invoke()); |
217 |
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assertEquals(21, f.result); |
218 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
219 |
jsr166 |
1.7 |
}}; |
220 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
221 |
dl |
1.1 |
} |
222 |
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|
223 |
jsr166 |
1.2 |
/** |
224 |
dl |
1.1 |
* quietlyInvoke task returns when task completes normally. |
225 |
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* isCompletedAbnormally and isCancelled return false for normally |
226 |
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* completed tasks |
227 |
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*/ |
228 |
|
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public void testQuietlyInvoke() { |
229 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
230 |
jsr166 |
1.39 |
protected void realCompute() { |
231 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
232 |
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f.quietlyInvoke(); |
233 |
jsr166 |
1.18 |
assertEquals(21, f.result); |
234 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
235 |
jsr166 |
1.7 |
}}; |
236 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
237 |
dl |
1.1 |
} |
238 |
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|
239 |
jsr166 |
1.2 |
/** |
240 |
dl |
1.1 |
* join of a forked task returns when task completes |
241 |
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*/ |
242 |
|
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public void testForkJoin() { |
243 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
244 |
jsr166 |
1.39 |
protected void realCompute() { |
245 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
246 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
247 |
|
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assertNull(f.join()); |
248 |
|
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assertEquals(21, f.result); |
249 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
250 |
jsr166 |
1.7 |
}}; |
251 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
252 |
dl |
1.1 |
} |
253 |
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|
254 |
jsr166 |
1.2 |
/** |
255 |
jsr166 |
1.25 |
* join/quietlyJoin of a forked task succeeds in the presence of interrupts |
256 |
jsr166 |
1.24 |
*/ |
257 |
|
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public void testJoinIgnoresInterrupts() { |
258 |
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RecursiveAction a = new CheckedRecursiveAction() { |
259 |
jsr166 |
1.39 |
protected void realCompute() { |
260 |
jsr166 |
1.24 |
FibAction f = new FibAction(8); |
261 |
jsr166 |
1.47 |
final Thread currentThread = Thread.currentThread(); |
262 |
jsr166 |
1.24 |
|
263 |
|
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// test join() |
264 |
|
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assertSame(f, f.fork()); |
265 |
jsr166 |
1.47 |
currentThread.interrupt(); |
266 |
jsr166 |
1.24 |
assertNull(f.join()); |
267 |
jsr166 |
1.25 |
Thread.interrupted(); |
268 |
jsr166 |
1.24 |
assertEquals(21, f.result); |
269 |
|
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checkCompletedNormally(f); |
270 |
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|
271 |
dl |
1.32 |
f = new FibAction(8); |
272 |
jsr166 |
1.24 |
f.cancel(true); |
273 |
|
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assertSame(f, f.fork()); |
274 |
jsr166 |
1.47 |
currentThread.interrupt(); |
275 |
jsr166 |
1.24 |
try { |
276 |
|
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f.join(); |
277 |
|
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shouldThrow(); |
278 |
|
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} catch (CancellationException success) { |
279 |
jsr166 |
1.25 |
Thread.interrupted(); |
280 |
jsr166 |
1.24 |
checkCancelled(f); |
281 |
|
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} |
282 |
|
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|
283 |
dl |
1.32 |
f = new FibAction(8); |
284 |
jsr166 |
1.24 |
f.completeExceptionally(new FJException()); |
285 |
|
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assertSame(f, f.fork()); |
286 |
jsr166 |
1.47 |
currentThread.interrupt(); |
287 |
jsr166 |
1.24 |
try { |
288 |
|
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f.join(); |
289 |
|
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shouldThrow(); |
290 |
|
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} catch (FJException success) { |
291 |
jsr166 |
1.25 |
Thread.interrupted(); |
292 |
jsr166 |
1.24 |
checkCompletedAbnormally(f, success); |
293 |
|
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} |
294 |
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|
295 |
|
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// test quietlyJoin() |
296 |
dl |
1.32 |
f = new FibAction(8); |
297 |
jsr166 |
1.24 |
assertSame(f, f.fork()); |
298 |
jsr166 |
1.47 |
currentThread.interrupt(); |
299 |
jsr166 |
1.24 |
f.quietlyJoin(); |
300 |
jsr166 |
1.25 |
Thread.interrupted(); |
301 |
jsr166 |
1.24 |
assertEquals(21, f.result); |
302 |
|
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checkCompletedNormally(f); |
303 |
|
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|
304 |
dl |
1.32 |
f = new FibAction(8); |
305 |
jsr166 |
1.24 |
f.cancel(true); |
306 |
|
|
assertSame(f, f.fork()); |
307 |
jsr166 |
1.47 |
currentThread.interrupt(); |
308 |
jsr166 |
1.24 |
f.quietlyJoin(); |
309 |
jsr166 |
1.25 |
Thread.interrupted(); |
310 |
jsr166 |
1.24 |
checkCancelled(f); |
311 |
|
|
|
312 |
dl |
1.32 |
f = new FibAction(8); |
313 |
jsr166 |
1.24 |
f.completeExceptionally(new FJException()); |
314 |
|
|
assertSame(f, f.fork()); |
315 |
jsr166 |
1.47 |
currentThread.interrupt(); |
316 |
jsr166 |
1.24 |
f.quietlyJoin(); |
317 |
jsr166 |
1.25 |
Thread.interrupted(); |
318 |
jsr166 |
1.24 |
checkCompletedAbnormally(f, f.getException()); |
319 |
|
|
}}; |
320 |
|
|
testInvokeOnPool(mainPool(), a); |
321 |
|
|
a.reinitialize(); |
322 |
|
|
testInvokeOnPool(singletonPool(), a); |
323 |
|
|
} |
324 |
|
|
|
325 |
|
|
/** |
326 |
jsr166 |
1.26 |
* join/quietlyJoin of a forked task when not in ForkJoinPool |
327 |
|
|
* succeeds in the presence of interrupts |
328 |
|
|
*/ |
329 |
|
|
public void testJoinIgnoresInterruptsOutsideForkJoinPool() { |
330 |
|
|
final SynchronousQueue<FibAction[]> sq = |
331 |
|
|
new SynchronousQueue<FibAction[]>(); |
332 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
333 |
jsr166 |
1.39 |
protected void realCompute() throws InterruptedException { |
334 |
jsr166 |
1.26 |
FibAction[] fibActions = new FibAction[6]; |
335 |
|
|
for (int i = 0; i < fibActions.length; i++) |
336 |
|
|
fibActions[i] = new FibAction(8); |
337 |
|
|
|
338 |
|
|
fibActions[1].cancel(false); |
339 |
|
|
fibActions[2].completeExceptionally(new FJException()); |
340 |
|
|
fibActions[4].cancel(true); |
341 |
|
|
fibActions[5].completeExceptionally(new FJException()); |
342 |
|
|
|
343 |
|
|
for (int i = 0; i < fibActions.length; i++) |
344 |
|
|
fibActions[i].fork(); |
345 |
|
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|
346 |
|
|
sq.put(fibActions); |
347 |
|
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|
348 |
|
|
helpQuiesce(); |
349 |
|
|
}}; |
350 |
|
|
|
351 |
|
|
Runnable r = new CheckedRunnable() { |
352 |
|
|
public void realRun() throws InterruptedException { |
353 |
|
|
FibAction[] fibActions = sq.take(); |
354 |
|
|
FibAction f; |
355 |
jsr166 |
1.47 |
final Thread currentThread = Thread.currentThread(); |
356 |
jsr166 |
1.26 |
|
357 |
|
|
// test join() ------------ |
358 |
|
|
|
359 |
|
|
f = fibActions[0]; |
360 |
jsr166 |
1.27 |
assertFalse(ForkJoinTask.inForkJoinPool()); |
361 |
jsr166 |
1.47 |
currentThread.interrupt(); |
362 |
jsr166 |
1.26 |
assertNull(f.join()); |
363 |
|
|
assertTrue(Thread.interrupted()); |
364 |
|
|
assertEquals(21, f.result); |
365 |
|
|
checkCompletedNormally(f); |
366 |
|
|
|
367 |
|
|
f = fibActions[1]; |
368 |
jsr166 |
1.47 |
currentThread.interrupt(); |
369 |
jsr166 |
1.26 |
try { |
370 |
|
|
f.join(); |
371 |
|
|
shouldThrow(); |
372 |
|
|
} catch (CancellationException success) { |
373 |
|
|
assertTrue(Thread.interrupted()); |
374 |
|
|
checkCancelled(f); |
375 |
|
|
} |
376 |
|
|
|
377 |
|
|
f = fibActions[2]; |
378 |
jsr166 |
1.47 |
currentThread.interrupt(); |
379 |
jsr166 |
1.26 |
try { |
380 |
|
|
f.join(); |
381 |
|
|
shouldThrow(); |
382 |
|
|
} catch (FJException success) { |
383 |
|
|
assertTrue(Thread.interrupted()); |
384 |
|
|
checkCompletedAbnormally(f, success); |
385 |
|
|
} |
386 |
|
|
|
387 |
|
|
// test quietlyJoin() --------- |
388 |
|
|
|
389 |
|
|
f = fibActions[3]; |
390 |
jsr166 |
1.47 |
currentThread.interrupt(); |
391 |
jsr166 |
1.26 |
f.quietlyJoin(); |
392 |
|
|
assertTrue(Thread.interrupted()); |
393 |
|
|
assertEquals(21, f.result); |
394 |
|
|
checkCompletedNormally(f); |
395 |
|
|
|
396 |
|
|
f = fibActions[4]; |
397 |
jsr166 |
1.47 |
currentThread.interrupt(); |
398 |
jsr166 |
1.26 |
f.quietlyJoin(); |
399 |
|
|
assertTrue(Thread.interrupted()); |
400 |
|
|
checkCancelled(f); |
401 |
|
|
|
402 |
|
|
f = fibActions[5]; |
403 |
jsr166 |
1.47 |
currentThread.interrupt(); |
404 |
jsr166 |
1.26 |
f.quietlyJoin(); |
405 |
|
|
assertTrue(Thread.interrupted()); |
406 |
|
|
assertTrue(f.getException() instanceof FJException); |
407 |
|
|
checkCompletedAbnormally(f, f.getException()); |
408 |
|
|
}}; |
409 |
|
|
|
410 |
|
|
Thread t; |
411 |
|
|
|
412 |
|
|
t = newStartedThread(r); |
413 |
|
|
testInvokeOnPool(mainPool(), a); |
414 |
jsr166 |
1.46 |
awaitTermination(t); |
415 |
jsr166 |
1.26 |
|
416 |
|
|
a.reinitialize(); |
417 |
|
|
t = newStartedThread(r); |
418 |
|
|
testInvokeOnPool(singletonPool(), a); |
419 |
jsr166 |
1.46 |
awaitTermination(t); |
420 |
jsr166 |
1.26 |
} |
421 |
|
|
|
422 |
|
|
/** |
423 |
dl |
1.1 |
* get of a forked task returns when task completes |
424 |
|
|
*/ |
425 |
|
|
public void testForkGet() { |
426 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
427 |
jsr166 |
1.39 |
protected void realCompute() throws Exception { |
428 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
429 |
|
|
assertSame(f, f.fork()); |
430 |
|
|
assertNull(f.get()); |
431 |
|
|
assertEquals(21, f.result); |
432 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
433 |
jsr166 |
1.7 |
}}; |
434 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
435 |
dl |
1.1 |
} |
436 |
|
|
|
437 |
jsr166 |
1.2 |
/** |
438 |
dl |
1.1 |
* timed get of a forked task returns when task completes |
439 |
|
|
*/ |
440 |
|
|
public void testForkTimedGet() { |
441 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
442 |
jsr166 |
1.39 |
protected void realCompute() throws Exception { |
443 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
444 |
|
|
assertSame(f, f.fork()); |
445 |
jsr166 |
1.19 |
assertNull(f.get(5L, SECONDS)); |
446 |
jsr166 |
1.18 |
assertEquals(21, f.result); |
447 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
448 |
jsr166 |
1.7 |
}}; |
449 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
450 |
dl |
1.1 |
} |
451 |
|
|
|
452 |
jsr166 |
1.2 |
/** |
453 |
dl |
1.1 |
* timed get with null time unit throws NPE |
454 |
|
|
*/ |
455 |
|
|
public void testForkTimedGetNPE() { |
456 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
457 |
jsr166 |
1.39 |
protected void realCompute() throws Exception { |
458 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
459 |
|
|
assertSame(f, f.fork()); |
460 |
jsr166 |
1.8 |
try { |
461 |
|
|
f.get(5L, null); |
462 |
|
|
shouldThrow(); |
463 |
jsr166 |
1.18 |
} catch (NullPointerException success) {} |
464 |
jsr166 |
1.8 |
}}; |
465 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
466 |
dl |
1.1 |
} |
467 |
|
|
|
468 |
jsr166 |
1.2 |
/** |
469 |
dl |
1.1 |
* quietlyJoin of a forked task returns when task completes |
470 |
|
|
*/ |
471 |
|
|
public void testForkQuietlyJoin() { |
472 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
473 |
jsr166 |
1.39 |
protected void realCompute() { |
474 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
475 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
476 |
jsr166 |
1.7 |
f.quietlyJoin(); |
477 |
jsr166 |
1.18 |
assertEquals(21, f.result); |
478 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
479 |
jsr166 |
1.7 |
}}; |
480 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
481 |
dl |
1.1 |
} |
482 |
|
|
|
483 |
jsr166 |
1.2 |
/** |
484 |
dl |
1.1 |
* helpQuiesce returns when tasks are complete. |
485 |
|
|
* getQueuedTaskCount returns 0 when quiescent |
486 |
|
|
*/ |
487 |
|
|
public void testForkHelpQuiesce() { |
488 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
489 |
jsr166 |
1.39 |
protected void realCompute() { |
490 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
491 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
492 |
jsr166 |
1.31 |
helpQuiesce(); |
493 |
dl |
1.41 |
while (!f.isDone()) // wait out race |
494 |
|
|
; |
495 |
jsr166 |
1.18 |
assertEquals(21, f.result); |
496 |
|
|
assertEquals(0, getQueuedTaskCount()); |
497 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
498 |
jsr166 |
1.7 |
}}; |
499 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
500 |
dl |
1.1 |
} |
501 |
|
|
|
502 |
jsr166 |
1.2 |
/** |
503 |
dl |
1.1 |
* invoke task throws exception when task completes abnormally |
504 |
|
|
*/ |
505 |
|
|
public void testAbnormalInvoke() { |
506 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
507 |
jsr166 |
1.39 |
protected void realCompute() { |
508 |
jsr166 |
1.18 |
FailingFibAction f = new FailingFibAction(8); |
509 |
jsr166 |
1.7 |
try { |
510 |
|
|
f.invoke(); |
511 |
|
|
shouldThrow(); |
512 |
jsr166 |
1.19 |
} catch (FJException success) { |
513 |
jsr166 |
1.21 |
checkCompletedAbnormally(f, success); |
514 |
jsr166 |
1.19 |
} |
515 |
jsr166 |
1.7 |
}}; |
516 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
517 |
dl |
1.1 |
} |
518 |
|
|
|
519 |
jsr166 |
1.2 |
/** |
520 |
jsr166 |
1.4 |
* quietlyInvoke task returns when task completes abnormally |
521 |
dl |
1.1 |
*/ |
522 |
|
|
public void testAbnormalQuietlyInvoke() { |
523 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
524 |
jsr166 |
1.39 |
protected void realCompute() { |
525 |
jsr166 |
1.7 |
FailingFibAction f = new FailingFibAction(8); |
526 |
|
|
f.quietlyInvoke(); |
527 |
jsr166 |
1.19 |
assertTrue(f.getException() instanceof FJException); |
528 |
jsr166 |
1.21 |
checkCompletedAbnormally(f, f.getException()); |
529 |
jsr166 |
1.7 |
}}; |
530 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
531 |
dl |
1.1 |
} |
532 |
|
|
|
533 |
jsr166 |
1.2 |
/** |
534 |
dl |
1.1 |
* join of a forked task throws exception when task completes abnormally |
535 |
|
|
*/ |
536 |
|
|
public void testAbnormalForkJoin() { |
537 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
538 |
jsr166 |
1.39 |
protected void realCompute() { |
539 |
jsr166 |
1.18 |
FailingFibAction f = new FailingFibAction(8); |
540 |
|
|
assertSame(f, f.fork()); |
541 |
jsr166 |
1.7 |
try { |
542 |
|
|
f.join(); |
543 |
|
|
shouldThrow(); |
544 |
jsr166 |
1.19 |
} catch (FJException success) { |
545 |
jsr166 |
1.21 |
checkCompletedAbnormally(f, success); |
546 |
jsr166 |
1.19 |
} |
547 |
jsr166 |
1.7 |
}}; |
548 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
549 |
dl |
1.1 |
} |
550 |
|
|
|
551 |
jsr166 |
1.2 |
/** |
552 |
dl |
1.1 |
* get of a forked task throws exception when task completes abnormally |
553 |
|
|
*/ |
554 |
|
|
public void testAbnormalForkGet() { |
555 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
556 |
jsr166 |
1.39 |
protected void realCompute() throws Exception { |
557 |
jsr166 |
1.18 |
FailingFibAction f = new FailingFibAction(8); |
558 |
|
|
assertSame(f, f.fork()); |
559 |
jsr166 |
1.7 |
try { |
560 |
|
|
f.get(); |
561 |
|
|
shouldThrow(); |
562 |
jsr166 |
1.19 |
} catch (ExecutionException success) { |
563 |
jsr166 |
1.21 |
Throwable cause = success.getCause(); |
564 |
|
|
assertTrue(cause instanceof FJException); |
565 |
|
|
checkCompletedAbnormally(f, cause); |
566 |
jsr166 |
1.19 |
} |
567 |
jsr166 |
1.7 |
}}; |
568 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
569 |
dl |
1.1 |
} |
570 |
|
|
|
571 |
jsr166 |
1.2 |
/** |
572 |
dl |
1.1 |
* timed get of a forked task throws exception when task completes abnormally |
573 |
|
|
*/ |
574 |
|
|
public void testAbnormalForkTimedGet() { |
575 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
576 |
jsr166 |
1.39 |
protected void realCompute() throws Exception { |
577 |
jsr166 |
1.18 |
FailingFibAction f = new FailingFibAction(8); |
578 |
|
|
assertSame(f, f.fork()); |
579 |
jsr166 |
1.7 |
try { |
580 |
jsr166 |
1.42 |
f.get(5L, SECONDS); |
581 |
jsr166 |
1.7 |
shouldThrow(); |
582 |
jsr166 |
1.19 |
} catch (ExecutionException success) { |
583 |
jsr166 |
1.21 |
Throwable cause = success.getCause(); |
584 |
|
|
assertTrue(cause instanceof FJException); |
585 |
|
|
checkCompletedAbnormally(f, cause); |
586 |
jsr166 |
1.19 |
} |
587 |
jsr166 |
1.7 |
}}; |
588 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
589 |
dl |
1.1 |
} |
590 |
|
|
|
591 |
jsr166 |
1.2 |
/** |
592 |
dl |
1.1 |
* quietlyJoin of a forked task returns when task completes abnormally |
593 |
|
|
*/ |
594 |
|
|
public void testAbnormalForkQuietlyJoin() { |
595 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
596 |
jsr166 |
1.39 |
protected void realCompute() { |
597 |
jsr166 |
1.7 |
FailingFibAction f = new FailingFibAction(8); |
598 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
599 |
jsr166 |
1.7 |
f.quietlyJoin(); |
600 |
jsr166 |
1.18 |
assertTrue(f.getException() instanceof FJException); |
601 |
jsr166 |
1.21 |
checkCompletedAbnormally(f, f.getException()); |
602 |
jsr166 |
1.7 |
}}; |
603 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
604 |
dl |
1.1 |
} |
605 |
|
|
|
606 |
jsr166 |
1.2 |
/** |
607 |
dl |
1.1 |
* invoke task throws exception when task cancelled |
608 |
|
|
*/ |
609 |
|
|
public void testCancelledInvoke() { |
610 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
611 |
jsr166 |
1.39 |
protected void realCompute() { |
612 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
613 |
|
|
assertTrue(f.cancel(true)); |
614 |
jsr166 |
1.7 |
try { |
615 |
|
|
f.invoke(); |
616 |
|
|
shouldThrow(); |
617 |
jsr166 |
1.19 |
} catch (CancellationException success) { |
618 |
|
|
checkCancelled(f); |
619 |
|
|
} |
620 |
jsr166 |
1.7 |
}}; |
621 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
622 |
dl |
1.1 |
} |
623 |
|
|
|
624 |
jsr166 |
1.2 |
/** |
625 |
dl |
1.1 |
* join of a forked task throws exception when task cancelled |
626 |
|
|
*/ |
627 |
|
|
public void testCancelledForkJoin() { |
628 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
629 |
jsr166 |
1.39 |
protected void realCompute() { |
630 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
631 |
|
|
assertTrue(f.cancel(true)); |
632 |
|
|
assertSame(f, f.fork()); |
633 |
jsr166 |
1.7 |
try { |
634 |
|
|
f.join(); |
635 |
|
|
shouldThrow(); |
636 |
jsr166 |
1.19 |
} catch (CancellationException success) { |
637 |
|
|
checkCancelled(f); |
638 |
|
|
} |
639 |
jsr166 |
1.7 |
}}; |
640 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
641 |
dl |
1.1 |
} |
642 |
|
|
|
643 |
jsr166 |
1.2 |
/** |
644 |
dl |
1.1 |
* get of a forked task throws exception when task cancelled |
645 |
|
|
*/ |
646 |
|
|
public void testCancelledForkGet() { |
647 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
648 |
jsr166 |
1.39 |
protected void realCompute() throws Exception { |
649 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
650 |
|
|
assertTrue(f.cancel(true)); |
651 |
|
|
assertSame(f, f.fork()); |
652 |
jsr166 |
1.7 |
try { |
653 |
|
|
f.get(); |
654 |
|
|
shouldThrow(); |
655 |
jsr166 |
1.19 |
} catch (CancellationException success) { |
656 |
|
|
checkCancelled(f); |
657 |
|
|
} |
658 |
jsr166 |
1.7 |
}}; |
659 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
660 |
dl |
1.1 |
} |
661 |
|
|
|
662 |
jsr166 |
1.2 |
/** |
663 |
dl |
1.1 |
* timed get of a forked task throws exception when task cancelled |
664 |
|
|
*/ |
665 |
|
|
public void testCancelledForkTimedGet() { |
666 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
667 |
jsr166 |
1.39 |
protected void realCompute() throws Exception { |
668 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
669 |
|
|
assertTrue(f.cancel(true)); |
670 |
|
|
assertSame(f, f.fork()); |
671 |
jsr166 |
1.7 |
try { |
672 |
jsr166 |
1.19 |
f.get(5L, SECONDS); |
673 |
jsr166 |
1.7 |
shouldThrow(); |
674 |
jsr166 |
1.19 |
} catch (CancellationException success) { |
675 |
|
|
checkCancelled(f); |
676 |
|
|
} |
677 |
jsr166 |
1.7 |
}}; |
678 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
679 |
dl |
1.1 |
} |
680 |
|
|
|
681 |
jsr166 |
1.2 |
/** |
682 |
dl |
1.1 |
* quietlyJoin of a forked task returns when task cancelled |
683 |
|
|
*/ |
684 |
|
|
public void testCancelledForkQuietlyJoin() { |
685 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
686 |
jsr166 |
1.39 |
protected void realCompute() { |
687 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
688 |
jsr166 |
1.18 |
assertTrue(f.cancel(true)); |
689 |
|
|
assertSame(f, f.fork()); |
690 |
jsr166 |
1.7 |
f.quietlyJoin(); |
691 |
jsr166 |
1.19 |
checkCancelled(f); |
692 |
jsr166 |
1.7 |
}}; |
693 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
694 |
dl |
1.1 |
} |
695 |
|
|
|
696 |
|
|
/** |
697 |
|
|
* getPool of executing task returns its pool |
698 |
|
|
*/ |
699 |
|
|
public void testGetPool() { |
700 |
jsr166 |
1.14 |
final ForkJoinPool mainPool = mainPool(); |
701 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
702 |
jsr166 |
1.39 |
protected void realCompute() { |
703 |
jsr166 |
1.18 |
assertSame(mainPool, getPool()); |
704 |
jsr166 |
1.7 |
}}; |
705 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool, a); |
706 |
dl |
1.1 |
} |
707 |
|
|
|
708 |
|
|
/** |
709 |
|
|
* getPool of non-FJ task returns null |
710 |
|
|
*/ |
711 |
|
|
public void testGetPool2() { |
712 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
713 |
jsr166 |
1.39 |
protected void realCompute() { |
714 |
jsr166 |
1.18 |
assertNull(getPool()); |
715 |
jsr166 |
1.7 |
}}; |
716 |
jsr166 |
1.16 |
assertNull(a.invoke()); |
717 |
dl |
1.1 |
} |
718 |
|
|
|
719 |
|
|
/** |
720 |
|
|
* inForkJoinPool of executing task returns true |
721 |
|
|
*/ |
722 |
|
|
public void testInForkJoinPool() { |
723 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
724 |
jsr166 |
1.39 |
protected void realCompute() { |
725 |
jsr166 |
1.18 |
assertTrue(inForkJoinPool()); |
726 |
jsr166 |
1.7 |
}}; |
727 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
728 |
dl |
1.1 |
} |
729 |
|
|
|
730 |
|
|
/** |
731 |
|
|
* inForkJoinPool of non-FJ task returns false |
732 |
|
|
*/ |
733 |
|
|
public void testInForkJoinPool2() { |
734 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
735 |
jsr166 |
1.39 |
protected void realCompute() { |
736 |
jsr166 |
1.18 |
assertFalse(inForkJoinPool()); |
737 |
jsr166 |
1.7 |
}}; |
738 |
jsr166 |
1.16 |
assertNull(a.invoke()); |
739 |
dl |
1.1 |
} |
740 |
|
|
|
741 |
|
|
/** |
742 |
|
|
* getPool of current thread in pool returns its pool |
743 |
|
|
*/ |
744 |
|
|
public void testWorkerGetPool() { |
745 |
jsr166 |
1.14 |
final ForkJoinPool mainPool = mainPool(); |
746 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
747 |
jsr166 |
1.39 |
protected void realCompute() { |
748 |
jsr166 |
1.7 |
ForkJoinWorkerThread w = |
749 |
jsr166 |
1.14 |
(ForkJoinWorkerThread) Thread.currentThread(); |
750 |
jsr166 |
1.18 |
assertSame(mainPool, w.getPool()); |
751 |
jsr166 |
1.7 |
}}; |
752 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool, a); |
753 |
dl |
1.1 |
} |
754 |
|
|
|
755 |
|
|
/** |
756 |
|
|
* getPoolIndex of current thread in pool returns 0 <= value < poolSize |
757 |
|
|
*/ |
758 |
|
|
public void testWorkerGetPoolIndex() { |
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 |
1.28 |
(ForkJoinWorkerThread) Thread.currentThread(); |
764 |
jsr166 |
1.19 |
assertTrue(w.getPoolIndex() >= 0); |
765 |
dl |
1.29 |
// pool size can shrink after assigning index, so cannot check |
766 |
|
|
// assertTrue(w.getPoolIndex() < mainPool.getPoolSize()); |
767 |
jsr166 |
1.7 |
}}; |
768 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool, a); |
769 |
dl |
1.1 |
} |
770 |
|
|
|
771 |
|
|
/** |
772 |
|
|
* setRawResult(null) succeeds |
773 |
|
|
*/ |
774 |
|
|
public void testSetRawResult() { |
775 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
776 |
jsr166 |
1.39 |
protected void realCompute() { |
777 |
jsr166 |
1.7 |
setRawResult(null); |
778 |
jsr166 |
1.23 |
assertNull(getRawResult()); |
779 |
jsr166 |
1.7 |
}}; |
780 |
jsr166 |
1.16 |
assertNull(a.invoke()); |
781 |
dl |
1.1 |
} |
782 |
|
|
|
783 |
jsr166 |
1.2 |
/** |
784 |
jsr166 |
1.33 |
* A reinitialized normally completed task may be re-invoked |
785 |
dl |
1.1 |
*/ |
786 |
|
|
public void testReinitialize() { |
787 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
788 |
jsr166 |
1.39 |
protected void realCompute() { |
789 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
790 |
jsr166 |
1.19 |
checkNotDone(f); |
791 |
|
|
|
792 |
|
|
for (int i = 0; i < 3; i++) { |
793 |
|
|
assertNull(f.invoke()); |
794 |
|
|
assertEquals(21, f.result); |
795 |
|
|
checkCompletedNormally(f); |
796 |
|
|
f.reinitialize(); |
797 |
|
|
checkNotDone(f); |
798 |
|
|
} |
799 |
jsr166 |
1.7 |
}}; |
800 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
801 |
dl |
1.1 |
} |
802 |
|
|
|
803 |
jsr166 |
1.2 |
/** |
804 |
jsr166 |
1.33 |
* A reinitialized abnormally completed task may be re-invoked |
805 |
|
|
*/ |
806 |
|
|
public void testReinitializeAbnormal() { |
807 |
|
|
RecursiveAction a = new CheckedRecursiveAction() { |
808 |
jsr166 |
1.39 |
protected void realCompute() { |
809 |
jsr166 |
1.33 |
FailingFibAction f = new FailingFibAction(8); |
810 |
|
|
checkNotDone(f); |
811 |
|
|
|
812 |
|
|
for (int i = 0; i < 3; i++) { |
813 |
|
|
try { |
814 |
|
|
f.invoke(); |
815 |
|
|
shouldThrow(); |
816 |
|
|
} catch (FJException success) { |
817 |
|
|
checkCompletedAbnormally(f, success); |
818 |
|
|
} |
819 |
|
|
f.reinitialize(); |
820 |
|
|
checkNotDone(f); |
821 |
|
|
} |
822 |
|
|
}}; |
823 |
|
|
testInvokeOnPool(mainPool(), a); |
824 |
|
|
} |
825 |
|
|
|
826 |
|
|
/** |
827 |
dl |
1.1 |
* invoke task throws exception after invoking completeExceptionally |
828 |
|
|
*/ |
829 |
|
|
public void testCompleteExceptionally() { |
830 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
831 |
jsr166 |
1.39 |
protected void realCompute() { |
832 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
833 |
|
|
f.completeExceptionally(new FJException()); |
834 |
jsr166 |
1.7 |
try { |
835 |
|
|
f.invoke(); |
836 |
|
|
shouldThrow(); |
837 |
jsr166 |
1.19 |
} catch (FJException success) { |
838 |
jsr166 |
1.21 |
checkCompletedAbnormally(f, success); |
839 |
jsr166 |
1.19 |
} |
840 |
jsr166 |
1.7 |
}}; |
841 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
842 |
dl |
1.1 |
} |
843 |
|
|
|
844 |
jsr166 |
1.2 |
/** |
845 |
dl |
1.1 |
* invoke task suppresses execution invoking complete |
846 |
|
|
*/ |
847 |
|
|
public void testComplete() { |
848 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
849 |
jsr166 |
1.39 |
protected void realCompute() { |
850 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
851 |
|
|
f.complete(null); |
852 |
jsr166 |
1.18 |
assertNull(f.invoke()); |
853 |
|
|
assertEquals(0, f.result); |
854 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
855 |
jsr166 |
1.7 |
}}; |
856 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
857 |
dl |
1.1 |
} |
858 |
|
|
|
859 |
jsr166 |
1.2 |
/** |
860 |
dl |
1.1 |
* invokeAll(t1, t2) invokes all task arguments |
861 |
|
|
*/ |
862 |
|
|
public void testInvokeAll2() { |
863 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
864 |
jsr166 |
1.39 |
protected void realCompute() { |
865 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
866 |
|
|
FibAction g = new FibAction(9); |
867 |
|
|
invokeAll(f, g); |
868 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
869 |
jsr166 |
1.18 |
assertEquals(21, f.result); |
870 |
jsr166 |
1.19 |
checkCompletedNormally(g); |
871 |
jsr166 |
1.18 |
assertEquals(34, g.result); |
872 |
jsr166 |
1.7 |
}}; |
873 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
874 |
dl |
1.1 |
} |
875 |
|
|
|
876 |
jsr166 |
1.2 |
/** |
877 |
dl |
1.1 |
* invokeAll(tasks) with 1 argument invokes task |
878 |
|
|
*/ |
879 |
|
|
public void testInvokeAll1() { |
880 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
881 |
jsr166 |
1.39 |
protected void realCompute() { |
882 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
883 |
|
|
invokeAll(f); |
884 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
885 |
jsr166 |
1.18 |
assertEquals(21, f.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 > 2 argument invokes tasks |
892 |
|
|
*/ |
893 |
|
|
public void testInvokeAll3() { |
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 |
|
|
FibAction g = new FibAction(9); |
898 |
|
|
FibAction h = new FibAction(7); |
899 |
|
|
invokeAll(f, g, h); |
900 |
jsr166 |
1.20 |
assertTrue(f.isDone()); |
901 |
|
|
assertTrue(g.isDone()); |
902 |
|
|
assertTrue(h.isDone()); |
903 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
904 |
jsr166 |
1.18 |
assertEquals(21, f.result); |
905 |
jsr166 |
1.19 |
checkCompletedNormally(g); |
906 |
jsr166 |
1.18 |
assertEquals(34, g.result); |
907 |
jsr166 |
1.19 |
checkCompletedNormally(g); |
908 |
jsr166 |
1.18 |
assertEquals(13, h.result); |
909 |
jsr166 |
1.7 |
}}; |
910 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
911 |
dl |
1.1 |
} |
912 |
|
|
|
913 |
jsr166 |
1.2 |
/** |
914 |
dl |
1.1 |
* invokeAll(collection) invokes all tasks in the collection |
915 |
|
|
*/ |
916 |
|
|
public void testInvokeAllCollection() { |
917 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
918 |
jsr166 |
1.39 |
protected void realCompute() { |
919 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
920 |
|
|
FibAction g = new FibAction(9); |
921 |
|
|
FibAction h = new FibAction(7); |
922 |
|
|
HashSet set = new HashSet(); |
923 |
|
|
set.add(f); |
924 |
|
|
set.add(g); |
925 |
|
|
set.add(h); |
926 |
|
|
invokeAll(set); |
927 |
jsr166 |
1.20 |
assertTrue(f.isDone()); |
928 |
|
|
assertTrue(g.isDone()); |
929 |
|
|
assertTrue(h.isDone()); |
930 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
931 |
jsr166 |
1.18 |
assertEquals(21, f.result); |
932 |
jsr166 |
1.19 |
checkCompletedNormally(g); |
933 |
jsr166 |
1.18 |
assertEquals(34, g.result); |
934 |
jsr166 |
1.19 |
checkCompletedNormally(g); |
935 |
jsr166 |
1.18 |
assertEquals(13, h.result); |
936 |
jsr166 |
1.7 |
}}; |
937 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
938 |
dl |
1.1 |
} |
939 |
|
|
|
940 |
jsr166 |
1.2 |
/** |
941 |
dl |
1.1 |
* invokeAll(tasks) with any null task throws NPE |
942 |
|
|
*/ |
943 |
|
|
public void testInvokeAllNPE() { |
944 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
945 |
jsr166 |
1.39 |
protected void realCompute() { |
946 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
947 |
|
|
FibAction g = new FibAction(9); |
948 |
|
|
FibAction h = null; |
949 |
jsr166 |
1.7 |
try { |
950 |
|
|
invokeAll(f, g, h); |
951 |
|
|
shouldThrow(); |
952 |
jsr166 |
1.18 |
} catch (NullPointerException success) {} |
953 |
jsr166 |
1.7 |
}}; |
954 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
955 |
dl |
1.1 |
} |
956 |
|
|
|
957 |
jsr166 |
1.2 |
/** |
958 |
dl |
1.1 |
* invokeAll(t1, t2) throw exception if any task does |
959 |
|
|
*/ |
960 |
|
|
public void testAbnormalInvokeAll2() { |
961 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
962 |
jsr166 |
1.39 |
protected void realCompute() { |
963 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
964 |
|
|
FailingFibAction g = new FailingFibAction(9); |
965 |
jsr166 |
1.7 |
try { |
966 |
|
|
invokeAll(f, g); |
967 |
|
|
shouldThrow(); |
968 |
jsr166 |
1.19 |
} catch (FJException success) { |
969 |
jsr166 |
1.21 |
checkCompletedAbnormally(g, success); |
970 |
jsr166 |
1.19 |
} |
971 |
jsr166 |
1.7 |
}}; |
972 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
973 |
dl |
1.1 |
} |
974 |
|
|
|
975 |
jsr166 |
1.2 |
/** |
976 |
dl |
1.1 |
* invokeAll(tasks) with 1 argument throws exception if task does |
977 |
|
|
*/ |
978 |
|
|
public void testAbnormalInvokeAll1() { |
979 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
980 |
jsr166 |
1.39 |
protected void realCompute() { |
981 |
jsr166 |
1.18 |
FailingFibAction g = new FailingFibAction(9); |
982 |
jsr166 |
1.7 |
try { |
983 |
|
|
invokeAll(g); |
984 |
|
|
shouldThrow(); |
985 |
jsr166 |
1.19 |
} catch (FJException success) { |
986 |
jsr166 |
1.21 |
checkCompletedAbnormally(g, success); |
987 |
jsr166 |
1.19 |
} |
988 |
jsr166 |
1.7 |
}}; |
989 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
990 |
dl |
1.1 |
} |
991 |
|
|
|
992 |
jsr166 |
1.2 |
/** |
993 |
dl |
1.1 |
* invokeAll(tasks) with > 2 argument throws exception if any task does |
994 |
|
|
*/ |
995 |
|
|
public void testAbnormalInvokeAll3() { |
996 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
997 |
jsr166 |
1.39 |
protected void realCompute() { |
998 |
jsr166 |
1.18 |
FibAction f = new FibAction(8); |
999 |
|
|
FailingFibAction g = new FailingFibAction(9); |
1000 |
|
|
FibAction h = new FibAction(7); |
1001 |
jsr166 |
1.7 |
try { |
1002 |
|
|
invokeAll(f, g, h); |
1003 |
|
|
shouldThrow(); |
1004 |
jsr166 |
1.19 |
} catch (FJException success) { |
1005 |
jsr166 |
1.21 |
checkCompletedAbnormally(g, success); |
1006 |
jsr166 |
1.19 |
} |
1007 |
jsr166 |
1.7 |
}}; |
1008 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
1009 |
dl |
1.1 |
} |
1010 |
|
|
|
1011 |
jsr166 |
1.2 |
/** |
1012 |
jsr166 |
1.3 |
* invokeAll(collection) throws exception if any task does |
1013 |
dl |
1.1 |
*/ |
1014 |
|
|
public void testAbnormalInvokeAllCollection() { |
1015 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
1016 |
jsr166 |
1.39 |
protected void realCompute() { |
1017 |
jsr166 |
1.18 |
FailingFibAction f = new FailingFibAction(8); |
1018 |
|
|
FibAction g = new FibAction(9); |
1019 |
|
|
FibAction h = new FibAction(7); |
1020 |
|
|
HashSet set = new HashSet(); |
1021 |
|
|
set.add(f); |
1022 |
|
|
set.add(g); |
1023 |
|
|
set.add(h); |
1024 |
jsr166 |
1.7 |
try { |
1025 |
|
|
invokeAll(set); |
1026 |
|
|
shouldThrow(); |
1027 |
jsr166 |
1.19 |
} catch (FJException success) { |
1028 |
jsr166 |
1.21 |
checkCompletedAbnormally(f, success); |
1029 |
jsr166 |
1.19 |
} |
1030 |
jsr166 |
1.7 |
}}; |
1031 |
jsr166 |
1.14 |
testInvokeOnPool(mainPool(), a); |
1032 |
dl |
1.1 |
} |
1033 |
|
|
|
1034 |
jsr166 |
1.2 |
/** |
1035 |
dl |
1.1 |
* tryUnfork returns true for most recent unexecuted task, |
1036 |
|
|
* and suppresses execution |
1037 |
|
|
*/ |
1038 |
|
|
public void testTryUnfork() { |
1039 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
1040 |
jsr166 |
1.39 |
protected void realCompute() { |
1041 |
jsr166 |
1.7 |
FibAction g = new FibAction(9); |
1042 |
jsr166 |
1.18 |
assertSame(g, g.fork()); |
1043 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
1044 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
1045 |
|
|
assertTrue(f.tryUnfork()); |
1046 |
jsr166 |
1.7 |
helpQuiesce(); |
1047 |
jsr166 |
1.19 |
checkNotDone(f); |
1048 |
|
|
checkCompletedNormally(g); |
1049 |
jsr166 |
1.7 |
}}; |
1050 |
jsr166 |
1.14 |
testInvokeOnPool(singletonPool(), a); |
1051 |
dl |
1.1 |
} |
1052 |
|
|
|
1053 |
jsr166 |
1.2 |
/** |
1054 |
dl |
1.1 |
* getSurplusQueuedTaskCount returns > 0 when |
1055 |
|
|
* there are more tasks than threads |
1056 |
|
|
*/ |
1057 |
|
|
public void testGetSurplusQueuedTaskCount() { |
1058 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
1059 |
jsr166 |
1.39 |
protected void realCompute() { |
1060 |
jsr166 |
1.7 |
FibAction h = new FibAction(7); |
1061 |
jsr166 |
1.18 |
assertSame(h, h.fork()); |
1062 |
jsr166 |
1.7 |
FibAction g = new FibAction(9); |
1063 |
jsr166 |
1.18 |
assertSame(g, g.fork()); |
1064 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
1065 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
1066 |
|
|
assertTrue(getSurplusQueuedTaskCount() > 0); |
1067 |
jsr166 |
1.7 |
helpQuiesce(); |
1068 |
jsr166 |
1.21 |
assertEquals(0, getSurplusQueuedTaskCount()); |
1069 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
1070 |
|
|
checkCompletedNormally(g); |
1071 |
|
|
checkCompletedNormally(h); |
1072 |
jsr166 |
1.7 |
}}; |
1073 |
jsr166 |
1.14 |
testInvokeOnPool(singletonPool(), a); |
1074 |
dl |
1.1 |
} |
1075 |
|
|
|
1076 |
jsr166 |
1.2 |
/** |
1077 |
dl |
1.1 |
* peekNextLocalTask returns most recent unexecuted task. |
1078 |
|
|
*/ |
1079 |
|
|
public void testPeekNextLocalTask() { |
1080 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
1081 |
jsr166 |
1.39 |
protected void realCompute() { |
1082 |
jsr166 |
1.7 |
FibAction g = new FibAction(9); |
1083 |
jsr166 |
1.18 |
assertSame(g, g.fork()); |
1084 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
1085 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
1086 |
|
|
assertSame(f, peekNextLocalTask()); |
1087 |
|
|
assertNull(f.join()); |
1088 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
1089 |
jsr166 |
1.7 |
helpQuiesce(); |
1090 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
1091 |
|
|
checkCompletedNormally(g); |
1092 |
jsr166 |
1.7 |
}}; |
1093 |
jsr166 |
1.14 |
testInvokeOnPool(singletonPool(), a); |
1094 |
dl |
1.1 |
} |
1095 |
|
|
|
1096 |
jsr166 |
1.2 |
/** |
1097 |
dl |
1.1 |
* pollNextLocalTask returns most recent unexecuted task |
1098 |
|
|
* without executing it |
1099 |
|
|
*/ |
1100 |
|
|
public void testPollNextLocalTask() { |
1101 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
1102 |
jsr166 |
1.39 |
protected void realCompute() { |
1103 |
jsr166 |
1.7 |
FibAction g = new FibAction(9); |
1104 |
jsr166 |
1.18 |
assertSame(g, g.fork()); |
1105 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
1106 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
1107 |
|
|
assertSame(f, pollNextLocalTask()); |
1108 |
jsr166 |
1.7 |
helpQuiesce(); |
1109 |
jsr166 |
1.19 |
checkNotDone(f); |
1110 |
|
|
checkCompletedNormally(g); |
1111 |
jsr166 |
1.7 |
}}; |
1112 |
jsr166 |
1.14 |
testInvokeOnPool(singletonPool(), a); |
1113 |
dl |
1.1 |
} |
1114 |
|
|
|
1115 |
jsr166 |
1.2 |
/** |
1116 |
jsr166 |
1.19 |
* pollTask returns an unexecuted task without executing it |
1117 |
dl |
1.1 |
*/ |
1118 |
|
|
public void testPollTask() { |
1119 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
1120 |
jsr166 |
1.39 |
protected void realCompute() { |
1121 |
jsr166 |
1.7 |
FibAction g = new FibAction(9); |
1122 |
jsr166 |
1.18 |
assertSame(g, g.fork()); |
1123 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
1124 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
1125 |
|
|
assertSame(f, pollTask()); |
1126 |
jsr166 |
1.7 |
helpQuiesce(); |
1127 |
jsr166 |
1.19 |
checkNotDone(f); |
1128 |
|
|
checkCompletedNormally(g); |
1129 |
jsr166 |
1.7 |
}}; |
1130 |
jsr166 |
1.14 |
testInvokeOnPool(singletonPool(), a); |
1131 |
dl |
1.1 |
} |
1132 |
|
|
|
1133 |
jsr166 |
1.2 |
/** |
1134 |
dl |
1.1 |
* peekNextLocalTask returns least recent unexecuted task in async mode |
1135 |
|
|
*/ |
1136 |
|
|
public void testPeekNextLocalTaskAsync() { |
1137 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
1138 |
jsr166 |
1.39 |
protected void realCompute() { |
1139 |
jsr166 |
1.7 |
FibAction g = new FibAction(9); |
1140 |
jsr166 |
1.18 |
assertSame(g, g.fork()); |
1141 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
1142 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
1143 |
|
|
assertSame(g, peekNextLocalTask()); |
1144 |
|
|
assertNull(f.join()); |
1145 |
jsr166 |
1.7 |
helpQuiesce(); |
1146 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
1147 |
|
|
checkCompletedNormally(g); |
1148 |
jsr166 |
1.7 |
}}; |
1149 |
jsr166 |
1.14 |
testInvokeOnPool(asyncSingletonPool(), a); |
1150 |
dl |
1.1 |
} |
1151 |
|
|
|
1152 |
jsr166 |
1.2 |
/** |
1153 |
jsr166 |
1.19 |
* pollNextLocalTask returns least recent unexecuted task without |
1154 |
|
|
* executing it, in async mode |
1155 |
dl |
1.1 |
*/ |
1156 |
|
|
public void testPollNextLocalTaskAsync() { |
1157 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
1158 |
jsr166 |
1.39 |
protected void realCompute() { |
1159 |
jsr166 |
1.7 |
FibAction g = new FibAction(9); |
1160 |
jsr166 |
1.18 |
assertSame(g, g.fork()); |
1161 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
1162 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
1163 |
|
|
assertSame(g, pollNextLocalTask()); |
1164 |
jsr166 |
1.7 |
helpQuiesce(); |
1165 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
1166 |
|
|
checkNotDone(g); |
1167 |
jsr166 |
1.7 |
}}; |
1168 |
jsr166 |
1.14 |
testInvokeOnPool(asyncSingletonPool(), a); |
1169 |
dl |
1.1 |
} |
1170 |
|
|
|
1171 |
jsr166 |
1.2 |
/** |
1172 |
jsr166 |
1.19 |
* pollTask returns an unexecuted task without executing it, in |
1173 |
|
|
* async mode |
1174 |
dl |
1.1 |
*/ |
1175 |
|
|
public void testPollTaskAsync() { |
1176 |
jsr166 |
1.18 |
RecursiveAction a = new CheckedRecursiveAction() { |
1177 |
jsr166 |
1.39 |
protected void realCompute() { |
1178 |
jsr166 |
1.7 |
FibAction g = new FibAction(9); |
1179 |
jsr166 |
1.18 |
assertSame(g, g.fork()); |
1180 |
jsr166 |
1.7 |
FibAction f = new FibAction(8); |
1181 |
jsr166 |
1.18 |
assertSame(f, f.fork()); |
1182 |
|
|
assertSame(g, pollTask()); |
1183 |
jsr166 |
1.7 |
helpQuiesce(); |
1184 |
jsr166 |
1.19 |
checkCompletedNormally(f); |
1185 |
|
|
checkNotDone(g); |
1186 |
jsr166 |
1.7 |
}}; |
1187 |
jsr166 |
1.14 |
testInvokeOnPool(asyncSingletonPool(), a); |
1188 |
dl |
1.1 |
} |
1189 |
|
|
|
1190 |
jsr166 |
1.37 |
/** Demo from RecursiveAction javadoc */ |
1191 |
jsr166 |
1.34 |
static class SortTask extends RecursiveAction { |
1192 |
|
|
final long[] array; final int lo, hi; |
1193 |
|
|
SortTask(long[] array, int lo, int hi) { |
1194 |
|
|
this.array = array; this.lo = lo; this.hi = hi; |
1195 |
|
|
} |
1196 |
jsr166 |
1.37 |
SortTask(long[] array) { this(array, 0, array.length); } |
1197 |
jsr166 |
1.34 |
protected void compute() { |
1198 |
|
|
if (hi - lo < THRESHOLD) |
1199 |
jsr166 |
1.37 |
sortSequentially(lo, hi); |
1200 |
jsr166 |
1.34 |
else { |
1201 |
|
|
int mid = (lo + hi) >>> 1; |
1202 |
|
|
invokeAll(new SortTask(array, lo, mid), |
1203 |
|
|
new SortTask(array, mid, hi)); |
1204 |
jsr166 |
1.37 |
merge(lo, mid, hi); |
1205 |
jsr166 |
1.34 |
} |
1206 |
|
|
} |
1207 |
jsr166 |
1.37 |
// implementation details follow: |
1208 |
jsr166 |
1.38 |
static final int THRESHOLD = 100; |
1209 |
jsr166 |
1.37 |
void sortSequentially(int lo, int hi) { |
1210 |
jsr166 |
1.34 |
Arrays.sort(array, lo, hi); |
1211 |
|
|
} |
1212 |
jsr166 |
1.37 |
void merge(int lo, int mid, int hi) { |
1213 |
jsr166 |
1.36 |
long[] buf = Arrays.copyOfRange(array, lo, mid); |
1214 |
|
|
for (int i = 0, j = lo, k = mid; i < buf.length; j++) |
1215 |
|
|
array[j] = (k == hi || buf[i] < array[k]) ? |
1216 |
|
|
buf[i++] : array[k++]; |
1217 |
jsr166 |
1.34 |
} |
1218 |
|
|
} |
1219 |
|
|
|
1220 |
|
|
/** |
1221 |
|
|
* SortTask demo works as advertised |
1222 |
|
|
*/ |
1223 |
|
|
public void testSortTaskDemo() { |
1224 |
|
|
ThreadLocalRandom rnd = ThreadLocalRandom.current(); |
1225 |
jsr166 |
1.35 |
long[] array = new long[1007]; |
1226 |
jsr166 |
1.34 |
for (int i = 0; i < array.length; i++) |
1227 |
|
|
array[i] = rnd.nextLong(); |
1228 |
|
|
long[] arrayClone = array.clone(); |
1229 |
jsr166 |
1.37 |
testInvokeOnPool(mainPool(), new SortTask(array)); |
1230 |
jsr166 |
1.34 |
Arrays.sort(arrayClone); |
1231 |
|
|
assertTrue(Arrays.equals(array, arrayClone)); |
1232 |
|
|
} |
1233 |
dl |
1.1 |
} |