1 |
/* |
2 |
* Written by Doug Lea with assistance from members of JCP JSR-166 |
3 |
* Expert Group and released to the public domain, as explained at |
4 |
* http://creativecommons.org/publicdomain/zero/1.0/ |
5 |
*/ |
6 |
|
7 |
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
8 |
|
9 |
import java.util.Arrays; |
10 |
import java.util.concurrent.CountDownLatch; |
11 |
import java.util.concurrent.ExecutionException; |
12 |
import java.util.concurrent.ForkJoinPool; |
13 |
import java.util.concurrent.ForkJoinTask; |
14 |
import java.util.concurrent.ForkJoinWorkerThread; |
15 |
import java.util.concurrent.RecursiveAction; |
16 |
import java.util.concurrent.TimeoutException; |
17 |
|
18 |
import junit.framework.Test; |
19 |
import junit.framework.TestSuite; |
20 |
|
21 |
public class ForkJoinTask8Test extends JSR166TestCase { |
22 |
|
23 |
/* |
24 |
* Testing notes: This differs from ForkJoinTaskTest mainly by |
25 |
* defining a version of BinaryAsyncAction that uses JDK8 task |
26 |
* tags for control state, thereby testing getForkJoinTaskTag, |
27 |
* setForkJoinTaskTag, and compareAndSetForkJoinTaskTag across |
28 |
* various contexts. Most of the test methods using it are |
29 |
* otherwise identical, but omitting retest of those dealing with |
30 |
* cancellation, which is not represented in this tag scheme. |
31 |
*/ |
32 |
|
33 |
static final short INITIAL_STATE = -1; |
34 |
static final short COMPLETE_STATE = 0; |
35 |
static final short EXCEPTION_STATE = 1; |
36 |
|
37 |
public static void main(String[] args) { |
38 |
main(suite(), args); |
39 |
} |
40 |
|
41 |
public static Test suite() { |
42 |
return new TestSuite(ForkJoinTask8Test.class); |
43 |
} |
44 |
|
45 |
// Runs with "mainPool" use > 1 thread. singletonPool tests use 1 |
46 |
static final int mainPoolSize = |
47 |
Math.max(2, Runtime.getRuntime().availableProcessors()); |
48 |
|
49 |
private static ForkJoinPool mainPool() { |
50 |
return new ForkJoinPool(mainPoolSize); |
51 |
} |
52 |
|
53 |
private static ForkJoinPool singletonPool() { |
54 |
return new ForkJoinPool(1); |
55 |
} |
56 |
|
57 |
private static ForkJoinPool asyncSingletonPool() { |
58 |
return new ForkJoinPool(1, |
59 |
ForkJoinPool.defaultForkJoinWorkerThreadFactory, |
60 |
null, true); |
61 |
} |
62 |
|
63 |
// Compute fib naively and efficiently |
64 |
final int[] fib; |
65 |
{ |
66 |
int[] fib = new int[10]; |
67 |
fib[0] = 0; |
68 |
fib[1] = 1; |
69 |
for (int i = 2; i < fib.length; i++) |
70 |
fib[i] = fib[i - 1] + fib[i - 2]; |
71 |
this.fib = fib; |
72 |
} |
73 |
|
74 |
private void testInvokeOnPool(ForkJoinPool pool, RecursiveAction a) { |
75 |
try (PoolCleaner cleaner = cleaner(pool)) { |
76 |
assertFalse(a.isDone()); |
77 |
assertFalse(a.isCompletedNormally()); |
78 |
assertFalse(a.isCompletedAbnormally()); |
79 |
assertFalse(a.isCancelled()); |
80 |
assertNull(a.getException()); |
81 |
assertNull(a.getRawResult()); |
82 |
|
83 |
assertNull(pool.invoke(a)); |
84 |
|
85 |
assertTrue(a.isDone()); |
86 |
assertTrue(a.isCompletedNormally()); |
87 |
assertFalse(a.isCompletedAbnormally()); |
88 |
assertFalse(a.isCancelled()); |
89 |
assertNull(a.getException()); |
90 |
assertNull(a.getRawResult()); |
91 |
} |
92 |
} |
93 |
|
94 |
void checkNotDone(ForkJoinTask a) { |
95 |
assertFalse(a.isDone()); |
96 |
assertFalse(a.isCompletedNormally()); |
97 |
assertFalse(a.isCompletedAbnormally()); |
98 |
assertFalse(a.isCancelled()); |
99 |
assertNull(a.getException()); |
100 |
assertNull(a.getRawResult()); |
101 |
if (a instanceof BinaryAsyncAction) |
102 |
assertEquals(INITIAL_STATE, |
103 |
((BinaryAsyncAction)a).getForkJoinTaskTag()); |
104 |
|
105 |
try { |
106 |
a.get(randomExpiredTimeout(), randomTimeUnit()); |
107 |
shouldThrow(); |
108 |
} catch (TimeoutException success) { |
109 |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
110 |
} |
111 |
|
112 |
<T> void checkCompletedNormally(ForkJoinTask<T> a) { |
113 |
checkCompletedNormally(a, null); |
114 |
} |
115 |
|
116 |
<T> void checkCompletedNormally(ForkJoinTask<T> a, T expected) { |
117 |
assertTrue(a.isDone()); |
118 |
assertFalse(a.isCancelled()); |
119 |
assertTrue(a.isCompletedNormally()); |
120 |
assertFalse(a.isCompletedAbnormally()); |
121 |
assertNull(a.getException()); |
122 |
assertSame(expected, a.getRawResult()); |
123 |
if (a instanceof BinaryAsyncAction) |
124 |
assertEquals(COMPLETE_STATE, |
125 |
((BinaryAsyncAction)a).getForkJoinTaskTag()); |
126 |
|
127 |
{ |
128 |
Thread.currentThread().interrupt(); |
129 |
long startTime = System.nanoTime(); |
130 |
assertSame(expected, a.join()); |
131 |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
132 |
Thread.interrupted(); |
133 |
} |
134 |
|
135 |
{ |
136 |
Thread.currentThread().interrupt(); |
137 |
long startTime = System.nanoTime(); |
138 |
a.quietlyJoin(); // should be no-op |
139 |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
140 |
Thread.interrupted(); |
141 |
} |
142 |
|
143 |
assertFalse(a.cancel(false)); |
144 |
assertFalse(a.cancel(true)); |
145 |
try { |
146 |
assertSame(expected, a.get()); |
147 |
assertSame(expected, a.get(randomTimeout(), randomTimeUnit())); |
148 |
} catch (Exception fail) { threadUnexpectedException(fail); } |
149 |
} |
150 |
|
151 |
void checkCompletedAbnormally(ForkJoinTask a, Throwable t) { |
152 |
assertTrue(a.isDone()); |
153 |
assertFalse(a.isCancelled()); |
154 |
assertFalse(a.isCompletedNormally()); |
155 |
assertTrue(a.isCompletedAbnormally()); |
156 |
assertSame(t.getClass(), a.getException().getClass()); |
157 |
assertNull(a.getRawResult()); |
158 |
assertFalse(a.cancel(false)); |
159 |
assertFalse(a.cancel(true)); |
160 |
if (a instanceof BinaryAsyncAction) |
161 |
assertTrue(((BinaryAsyncAction)a).getForkJoinTaskTag() != INITIAL_STATE); |
162 |
|
163 |
try { |
164 |
Thread.currentThread().interrupt(); |
165 |
a.join(); |
166 |
shouldThrow(); |
167 |
} catch (Throwable expected) { |
168 |
assertSame(t.getClass(), expected.getClass()); |
169 |
} |
170 |
Thread.interrupted(); |
171 |
|
172 |
{ |
173 |
long startTime = System.nanoTime(); |
174 |
a.quietlyJoin(); // should be no-op |
175 |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
176 |
} |
177 |
|
178 |
try { |
179 |
a.get(); |
180 |
shouldThrow(); |
181 |
} catch (ExecutionException success) { |
182 |
assertSame(t.getClass(), success.getCause().getClass()); |
183 |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
184 |
|
185 |
try { |
186 |
a.get(randomTimeout(), randomTimeUnit()); |
187 |
shouldThrow(); |
188 |
} catch (ExecutionException success) { |
189 |
assertSame(t.getClass(), success.getCause().getClass()); |
190 |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
191 |
} |
192 |
|
193 |
public static final class FJException extends RuntimeException { |
194 |
FJException() { super(); } |
195 |
} |
196 |
|
197 |
abstract static class BinaryAsyncAction extends ForkJoinTask<Void> { |
198 |
|
199 |
private volatile BinaryAsyncAction parent; |
200 |
|
201 |
private volatile BinaryAsyncAction sibling; |
202 |
|
203 |
protected BinaryAsyncAction() { |
204 |
setForkJoinTaskTag(INITIAL_STATE); |
205 |
} |
206 |
|
207 |
public final Void getRawResult() { return null; } |
208 |
protected final void setRawResult(Void mustBeNull) { } |
209 |
|
210 |
public final void linkSubtasks(BinaryAsyncAction x, BinaryAsyncAction y) { |
211 |
x.parent = y.parent = this; |
212 |
x.sibling = y; |
213 |
y.sibling = x; |
214 |
} |
215 |
|
216 |
protected void onComplete(BinaryAsyncAction x, BinaryAsyncAction y) { |
217 |
if (this.getForkJoinTaskTag() != COMPLETE_STATE || |
218 |
x.getForkJoinTaskTag() != COMPLETE_STATE || |
219 |
y.getForkJoinTaskTag() != COMPLETE_STATE) { |
220 |
completeThisExceptionally(new FJException()); |
221 |
} |
222 |
} |
223 |
|
224 |
protected boolean onException() { |
225 |
return true; |
226 |
} |
227 |
|
228 |
public void linkAndForkSubtasks(BinaryAsyncAction x, BinaryAsyncAction y) { |
229 |
linkSubtasks(x, y); |
230 |
y.fork(); |
231 |
x.fork(); |
232 |
} |
233 |
|
234 |
private void completeThis() { |
235 |
setForkJoinTaskTag(COMPLETE_STATE); |
236 |
super.complete(null); |
237 |
} |
238 |
|
239 |
private void completeThisExceptionally(Throwable ex) { |
240 |
setForkJoinTaskTag(EXCEPTION_STATE); |
241 |
super.completeExceptionally(ex); |
242 |
} |
243 |
|
244 |
public boolean cancel(boolean mayInterruptIfRunning) { |
245 |
if (super.cancel(mayInterruptIfRunning)) { |
246 |
completeExceptionally(new FJException()); |
247 |
return true; |
248 |
} |
249 |
return false; |
250 |
} |
251 |
|
252 |
public final void complete() { |
253 |
BinaryAsyncAction a = this; |
254 |
for (;;) { |
255 |
BinaryAsyncAction s = a.sibling; |
256 |
BinaryAsyncAction p = a.parent; |
257 |
a.sibling = null; |
258 |
a.parent = null; |
259 |
a.completeThis(); |
260 |
if (p == null || |
261 |
p.compareAndSetForkJoinTaskTag(INITIAL_STATE, COMPLETE_STATE)) |
262 |
break; |
263 |
try { |
264 |
p.onComplete(a, s); |
265 |
} catch (Throwable rex) { |
266 |
p.completeExceptionally(rex); |
267 |
return; |
268 |
} |
269 |
a = p; |
270 |
} |
271 |
} |
272 |
|
273 |
public final void completeExceptionally(Throwable ex) { |
274 |
for (BinaryAsyncAction a = this;;) { |
275 |
a.completeThisExceptionally(ex); |
276 |
BinaryAsyncAction s = a.sibling; |
277 |
if (s != null && !s.isDone()) |
278 |
s.completeExceptionally(ex); |
279 |
if ((a = a.parent) == null) |
280 |
break; |
281 |
} |
282 |
} |
283 |
|
284 |
public final BinaryAsyncAction getParent() { |
285 |
return parent; |
286 |
} |
287 |
|
288 |
public BinaryAsyncAction getSibling() { |
289 |
return sibling; |
290 |
} |
291 |
|
292 |
public void reinitialize() { |
293 |
parent = sibling = null; |
294 |
super.reinitialize(); |
295 |
} |
296 |
|
297 |
} |
298 |
|
299 |
final class AsyncFib extends BinaryAsyncAction { |
300 |
int number; |
301 |
int expectedResult; |
302 |
public AsyncFib(int number) { |
303 |
this.number = number; |
304 |
this.expectedResult = fib[number]; |
305 |
} |
306 |
|
307 |
public final boolean exec() { |
308 |
try { |
309 |
AsyncFib f = this; |
310 |
int n = f.number; |
311 |
while (n > 1) { |
312 |
AsyncFib p = f; |
313 |
AsyncFib r = new AsyncFib(n - 2); |
314 |
f = new AsyncFib(--n); |
315 |
p.linkSubtasks(r, f); |
316 |
r.fork(); |
317 |
} |
318 |
f.complete(); |
319 |
} |
320 |
catch (Throwable ex) { |
321 |
compareAndSetForkJoinTaskTag(INITIAL_STATE, EXCEPTION_STATE); |
322 |
} |
323 |
if (getForkJoinTaskTag() == EXCEPTION_STATE) |
324 |
throw new FJException(); |
325 |
return false; |
326 |
} |
327 |
|
328 |
protected void onComplete(BinaryAsyncAction x, BinaryAsyncAction y) { |
329 |
number = ((AsyncFib)x).number + ((AsyncFib)y).number; |
330 |
super.onComplete(x, y); |
331 |
} |
332 |
|
333 |
public void checkCompletedNormally() { |
334 |
assertEquals(expectedResult, number); |
335 |
ForkJoinTask8Test.this.checkCompletedNormally(this); |
336 |
} |
337 |
} |
338 |
|
339 |
static final class FailingAsyncFib extends BinaryAsyncAction { |
340 |
int number; |
341 |
public FailingAsyncFib(int n) { |
342 |
this.number = n; |
343 |
} |
344 |
|
345 |
public final boolean exec() { |
346 |
try { |
347 |
FailingAsyncFib f = this; |
348 |
int n = f.number; |
349 |
while (n > 1) { |
350 |
FailingAsyncFib p = f; |
351 |
FailingAsyncFib r = new FailingAsyncFib(n - 2); |
352 |
f = new FailingAsyncFib(--n); |
353 |
p.linkSubtasks(r, f); |
354 |
r.fork(); |
355 |
} |
356 |
f.complete(); |
357 |
} |
358 |
catch (Throwable ex) { |
359 |
compareAndSetForkJoinTaskTag(INITIAL_STATE, EXCEPTION_STATE); |
360 |
} |
361 |
if (getForkJoinTaskTag() == EXCEPTION_STATE) |
362 |
throw new FJException(); |
363 |
return false; |
364 |
} |
365 |
|
366 |
protected void onComplete(BinaryAsyncAction x, BinaryAsyncAction y) { |
367 |
completeExceptionally(new FJException()); |
368 |
} |
369 |
} |
370 |
|
371 |
/** |
372 |
* invoke returns when task completes normally. |
373 |
* isCompletedAbnormally and isCancelled return false for normally |
374 |
* completed tasks; getRawResult returns null. |
375 |
*/ |
376 |
public void testInvoke() { |
377 |
testInvoke(mainPool()); |
378 |
} |
379 |
public void testInvoke_Singleton() { |
380 |
testInvoke(singletonPool()); |
381 |
} |
382 |
public void testInvoke(ForkJoinPool pool) { |
383 |
RecursiveAction a = new CheckedRecursiveAction() { |
384 |
protected void realCompute() { |
385 |
AsyncFib f = new AsyncFib(8); |
386 |
assertNull(f.invoke()); |
387 |
f.checkCompletedNormally(); |
388 |
}}; |
389 |
testInvokeOnPool(pool, a); |
390 |
} |
391 |
|
392 |
/** |
393 |
* quietlyInvoke task returns when task completes normally. |
394 |
* isCompletedAbnormally and isCancelled return false for normally |
395 |
* completed tasks |
396 |
*/ |
397 |
public void testQuietlyInvoke() { |
398 |
testQuietlyInvoke(mainPool()); |
399 |
} |
400 |
public void testQuietlyInvoke_Singleton() { |
401 |
testQuietlyInvoke(singletonPool()); |
402 |
} |
403 |
public void testQuietlyInvoke(ForkJoinPool pool) { |
404 |
RecursiveAction a = new CheckedRecursiveAction() { |
405 |
protected void realCompute() { |
406 |
AsyncFib f = new AsyncFib(8); |
407 |
f.quietlyInvoke(); |
408 |
f.checkCompletedNormally(); |
409 |
}}; |
410 |
testInvokeOnPool(pool, a); |
411 |
} |
412 |
|
413 |
/** |
414 |
* join of a forked task returns when task completes |
415 |
*/ |
416 |
public void testForkJoin() { |
417 |
testForkJoin(mainPool()); |
418 |
} |
419 |
public void testForkJoin_Singleton() { |
420 |
testForkJoin(singletonPool()); |
421 |
} |
422 |
public void testForkJoin(ForkJoinPool pool) { |
423 |
RecursiveAction a = new CheckedRecursiveAction() { |
424 |
protected void realCompute() { |
425 |
AsyncFib f = new AsyncFib(8); |
426 |
assertSame(f, f.fork()); |
427 |
assertNull(f.join()); |
428 |
f.checkCompletedNormally(); |
429 |
}}; |
430 |
testInvokeOnPool(pool, a); |
431 |
} |
432 |
|
433 |
/** |
434 |
* get of a forked task returns when task completes |
435 |
*/ |
436 |
public void testForkGet() { |
437 |
testForkGet(mainPool()); |
438 |
} |
439 |
public void testForkGet_Singleton() { |
440 |
testForkGet(singletonPool()); |
441 |
} |
442 |
public void testForkGet(ForkJoinPool pool) { |
443 |
RecursiveAction a = new CheckedRecursiveAction() { |
444 |
protected void realCompute() throws Exception { |
445 |
AsyncFib f = new AsyncFib(8); |
446 |
assertSame(f, f.fork()); |
447 |
assertNull(f.get()); |
448 |
f.checkCompletedNormally(); |
449 |
}}; |
450 |
testInvokeOnPool(pool, a); |
451 |
} |
452 |
|
453 |
/** |
454 |
* timed get of a forked task returns when task completes |
455 |
*/ |
456 |
public void testForkTimedGet() { |
457 |
testForkTimedGet(mainPool()); |
458 |
} |
459 |
public void testForkTimedGet_Singleton() { |
460 |
testForkTimedGet(singletonPool()); |
461 |
} |
462 |
public void testForkTimedGet(ForkJoinPool pool) { |
463 |
RecursiveAction a = new CheckedRecursiveAction() { |
464 |
protected void realCompute() throws Exception { |
465 |
AsyncFib f = new AsyncFib(8); |
466 |
assertSame(f, f.fork()); |
467 |
assertNull(f.get(LONG_DELAY_MS, MILLISECONDS)); |
468 |
f.checkCompletedNormally(); |
469 |
}}; |
470 |
testInvokeOnPool(pool, a); |
471 |
} |
472 |
|
473 |
/** |
474 |
* timed get with null time unit throws NullPointerException |
475 |
*/ |
476 |
public void testForkTimedGetNullTimeUnit() { |
477 |
testForkTimedGetNullTimeUnit(mainPool()); |
478 |
} |
479 |
public void testForkTimedGetNullTimeUnit_Singleton() { |
480 |
testForkTimedGet(singletonPool()); |
481 |
} |
482 |
public void testForkTimedGetNullTimeUnit(ForkJoinPool pool) { |
483 |
RecursiveAction a = new CheckedRecursiveAction() { |
484 |
protected void realCompute() throws Exception { |
485 |
AsyncFib f = new AsyncFib(8); |
486 |
assertSame(f, f.fork()); |
487 |
try { |
488 |
f.get(randomTimeout(), null); |
489 |
shouldThrow(); |
490 |
} catch (NullPointerException success) {} |
491 |
}}; |
492 |
testInvokeOnPool(pool, a); |
493 |
} |
494 |
|
495 |
/** |
496 |
* quietlyJoin of a forked task returns when task completes |
497 |
*/ |
498 |
public void testForkQuietlyJoin() { |
499 |
testForkQuietlyJoin(mainPool()); |
500 |
} |
501 |
public void testForkQuietlyJoin_Singleton() { |
502 |
testForkQuietlyJoin(singletonPool()); |
503 |
} |
504 |
public void testForkQuietlyJoin(ForkJoinPool pool) { |
505 |
RecursiveAction a = new CheckedRecursiveAction() { |
506 |
protected void realCompute() { |
507 |
AsyncFib f = new AsyncFib(8); |
508 |
assertSame(f, f.fork()); |
509 |
f.quietlyJoin(); |
510 |
f.checkCompletedNormally(); |
511 |
}}; |
512 |
testInvokeOnPool(pool, a); |
513 |
} |
514 |
|
515 |
/** |
516 |
* helpQuiesce returns when tasks are complete. |
517 |
* getQueuedTaskCount returns 0 when quiescent |
518 |
*/ |
519 |
public void testForkHelpQuiesce() { |
520 |
testForkHelpQuiesce(mainPool()); |
521 |
} |
522 |
public void testForkHelpQuiesce_Singleton() { |
523 |
testForkHelpQuiesce(singletonPool()); |
524 |
} |
525 |
public void testForkHelpQuiesce(ForkJoinPool pool) { |
526 |
RecursiveAction a = new CheckedRecursiveAction() { |
527 |
protected void realCompute() { |
528 |
AsyncFib f = new AsyncFib(8); |
529 |
assertSame(f, f.fork()); |
530 |
helpQuiesce(); |
531 |
assertEquals(0, getQueuedTaskCount()); |
532 |
f.checkCompletedNormally(); |
533 |
}}; |
534 |
testInvokeOnPool(pool, a); |
535 |
} |
536 |
|
537 |
/** |
538 |
* invoke task throws exception when task completes abnormally |
539 |
*/ |
540 |
public void testAbnormalInvoke() { |
541 |
testAbnormalInvoke(mainPool()); |
542 |
} |
543 |
public void testAbnormalInvoke_Singleton() { |
544 |
testAbnormalInvoke(singletonPool()); |
545 |
} |
546 |
public void testAbnormalInvoke(ForkJoinPool pool) { |
547 |
RecursiveAction a = new CheckedRecursiveAction() { |
548 |
protected void realCompute() { |
549 |
FailingAsyncFib f = new FailingAsyncFib(8); |
550 |
try { |
551 |
f.invoke(); |
552 |
shouldThrow(); |
553 |
} catch (FJException success) { |
554 |
checkCompletedAbnormally(f, success); |
555 |
} |
556 |
}}; |
557 |
testInvokeOnPool(pool, a); |
558 |
} |
559 |
|
560 |
/** |
561 |
* quietlyInvoke task returns when task completes abnormally |
562 |
*/ |
563 |
public void testAbnormalQuietlyInvoke() { |
564 |
testAbnormalQuietlyInvoke(mainPool()); |
565 |
} |
566 |
public void testAbnormalQuietlyInvoke_Singleton() { |
567 |
testAbnormalQuietlyInvoke(singletonPool()); |
568 |
} |
569 |
public void testAbnormalQuietlyInvoke(ForkJoinPool pool) { |
570 |
RecursiveAction a = new CheckedRecursiveAction() { |
571 |
protected void realCompute() { |
572 |
FailingAsyncFib f = new FailingAsyncFib(8); |
573 |
f.quietlyInvoke(); |
574 |
assertTrue(f.getException() instanceof FJException); |
575 |
checkCompletedAbnormally(f, f.getException()); |
576 |
}}; |
577 |
testInvokeOnPool(pool, a); |
578 |
} |
579 |
|
580 |
/** |
581 |
* join of a forked task throws exception when task completes abnormally |
582 |
*/ |
583 |
public void testAbnormalForkJoin() { |
584 |
testAbnormalForkJoin(mainPool()); |
585 |
} |
586 |
public void testAbnormalForkJoin_Singleton() { |
587 |
testAbnormalForkJoin(singletonPool()); |
588 |
} |
589 |
public void testAbnormalForkJoin(ForkJoinPool pool) { |
590 |
RecursiveAction a = new CheckedRecursiveAction() { |
591 |
protected void realCompute() { |
592 |
FailingAsyncFib f = new FailingAsyncFib(8); |
593 |
assertSame(f, f.fork()); |
594 |
try { |
595 |
f.join(); |
596 |
shouldThrow(); |
597 |
} catch (FJException success) { |
598 |
checkCompletedAbnormally(f, success); |
599 |
} |
600 |
}}; |
601 |
testInvokeOnPool(pool, a); |
602 |
} |
603 |
|
604 |
/** |
605 |
* get of a forked task throws exception when task completes abnormally |
606 |
*/ |
607 |
public void testAbnormalForkGet() { |
608 |
testAbnormalForkGet(mainPool()); |
609 |
} |
610 |
public void testAbnormalForkGet_Singleton() { |
611 |
testAbnormalForkJoin(singletonPool()); |
612 |
} |
613 |
public void testAbnormalForkGet(ForkJoinPool pool) { |
614 |
RecursiveAction a = new CheckedRecursiveAction() { |
615 |
protected void realCompute() throws Exception { |
616 |
FailingAsyncFib f = new FailingAsyncFib(8); |
617 |
assertSame(f, f.fork()); |
618 |
try { |
619 |
f.get(); |
620 |
shouldThrow(); |
621 |
} catch (ExecutionException success) { |
622 |
Throwable cause = success.getCause(); |
623 |
assertTrue(cause instanceof FJException); |
624 |
checkCompletedAbnormally(f, cause); |
625 |
} |
626 |
}}; |
627 |
testInvokeOnPool(pool, a); |
628 |
} |
629 |
|
630 |
/** |
631 |
* timed get of a forked task throws exception when task completes abnormally |
632 |
*/ |
633 |
public void testAbnormalForkTimedGet() { |
634 |
testAbnormalForkTimedGet(mainPool()); |
635 |
} |
636 |
public void testAbnormalForkTimedGet_Singleton() { |
637 |
testAbnormalForkTimedGet(singletonPool()); |
638 |
} |
639 |
public void testAbnormalForkTimedGet(ForkJoinPool pool) { |
640 |
RecursiveAction a = new CheckedRecursiveAction() { |
641 |
protected void realCompute() throws Exception { |
642 |
FailingAsyncFib f = new FailingAsyncFib(8); |
643 |
assertSame(f, f.fork()); |
644 |
try { |
645 |
f.get(LONG_DELAY_MS, MILLISECONDS); |
646 |
shouldThrow(); |
647 |
} catch (ExecutionException success) { |
648 |
Throwable cause = success.getCause(); |
649 |
assertTrue(cause instanceof FJException); |
650 |
checkCompletedAbnormally(f, cause); |
651 |
} |
652 |
}}; |
653 |
testInvokeOnPool(pool, a); |
654 |
} |
655 |
|
656 |
/** |
657 |
* quietlyJoin of a forked task returns when task completes abnormally |
658 |
*/ |
659 |
public void testAbnormalForkQuietlyJoin() { |
660 |
testAbnormalForkQuietlyJoin(mainPool()); |
661 |
} |
662 |
public void testAbnormalForkQuietlyJoin_Singleton() { |
663 |
testAbnormalForkQuietlyJoin(singletonPool()); |
664 |
} |
665 |
public void testAbnormalForkQuietlyJoin(ForkJoinPool pool) { |
666 |
RecursiveAction a = new CheckedRecursiveAction() { |
667 |
protected void realCompute() { |
668 |
FailingAsyncFib f = new FailingAsyncFib(8); |
669 |
assertSame(f, f.fork()); |
670 |
f.quietlyJoin(); |
671 |
assertTrue(f.getException() instanceof FJException); |
672 |
checkCompletedAbnormally(f, f.getException()); |
673 |
}}; |
674 |
testInvokeOnPool(pool, a); |
675 |
} |
676 |
|
677 |
/** |
678 |
* getPool of executing task returns its pool |
679 |
*/ |
680 |
public void testGetPool() { |
681 |
testGetPool(mainPool()); |
682 |
} |
683 |
public void testGetPool_Singleton() { |
684 |
testGetPool(singletonPool()); |
685 |
} |
686 |
public void testGetPool(ForkJoinPool pool) { |
687 |
RecursiveAction a = new CheckedRecursiveAction() { |
688 |
protected void realCompute() { |
689 |
assertSame(pool, getPool()); |
690 |
}}; |
691 |
testInvokeOnPool(pool, a); |
692 |
} |
693 |
|
694 |
/** |
695 |
* getPool of non-FJ task returns null |
696 |
*/ |
697 |
public void testGetPool2() { |
698 |
RecursiveAction a = new CheckedRecursiveAction() { |
699 |
protected void realCompute() { |
700 |
assertNull(getPool()); |
701 |
}}; |
702 |
assertNull(a.invoke()); |
703 |
} |
704 |
|
705 |
/** |
706 |
* inForkJoinPool of executing task returns true |
707 |
*/ |
708 |
public void testInForkJoinPool() { |
709 |
testInForkJoinPool(mainPool()); |
710 |
} |
711 |
public void testInForkJoinPool_Singleton() { |
712 |
testInForkJoinPool(singletonPool()); |
713 |
} |
714 |
public void testInForkJoinPool(ForkJoinPool pool) { |
715 |
RecursiveAction a = new CheckedRecursiveAction() { |
716 |
protected void realCompute() { |
717 |
assertTrue(inForkJoinPool()); |
718 |
}}; |
719 |
testInvokeOnPool(pool, a); |
720 |
} |
721 |
|
722 |
/** |
723 |
* inForkJoinPool of non-FJ task returns false |
724 |
*/ |
725 |
public void testInForkJoinPool2() { |
726 |
RecursiveAction a = new CheckedRecursiveAction() { |
727 |
protected void realCompute() { |
728 |
assertFalse(inForkJoinPool()); |
729 |
}}; |
730 |
assertNull(a.invoke()); |
731 |
} |
732 |
|
733 |
/** |
734 |
* setRawResult(null) succeeds |
735 |
*/ |
736 |
public void testSetRawResult() { |
737 |
RecursiveAction a = new CheckedRecursiveAction() { |
738 |
protected void realCompute() { |
739 |
setRawResult(null); |
740 |
assertNull(getRawResult()); |
741 |
}}; |
742 |
assertNull(a.invoke()); |
743 |
} |
744 |
|
745 |
/** |
746 |
* invoke task throws exception after invoking completeExceptionally |
747 |
*/ |
748 |
public void testCompleteExceptionally() { |
749 |
testCompleteExceptionally(mainPool()); |
750 |
} |
751 |
public void testCompleteExceptionally_Singleton() { |
752 |
testCompleteExceptionally(singletonPool()); |
753 |
} |
754 |
public void testCompleteExceptionally(ForkJoinPool pool) { |
755 |
RecursiveAction a = new CheckedRecursiveAction() { |
756 |
protected void realCompute() { |
757 |
AsyncFib f = new AsyncFib(8); |
758 |
f.completeExceptionally(new FJException()); |
759 |
try { |
760 |
f.invoke(); |
761 |
shouldThrow(); |
762 |
} catch (FJException success) { |
763 |
checkCompletedAbnormally(f, success); |
764 |
} |
765 |
}}; |
766 |
testInvokeOnPool(pool, a); |
767 |
} |
768 |
|
769 |
/** |
770 |
* invokeAll(tasks) with 1 argument invokes task |
771 |
*/ |
772 |
public void testInvokeAll1() { |
773 |
testInvokeAll1(mainPool()); |
774 |
} |
775 |
public void testInvokeAll1_Singleton() { |
776 |
testInvokeAll1(singletonPool()); |
777 |
} |
778 |
public void testInvokeAll1(ForkJoinPool pool) { |
779 |
RecursiveAction a = new CheckedRecursiveAction() { |
780 |
protected void realCompute() { |
781 |
AsyncFib f = new AsyncFib(8); |
782 |
invokeAll(f); |
783 |
f.checkCompletedNormally(); |
784 |
}}; |
785 |
testInvokeOnPool(pool, a); |
786 |
} |
787 |
|
788 |
/** |
789 |
* invokeAll(t1, t2) invokes all task arguments |
790 |
*/ |
791 |
public void testInvokeAll2() { |
792 |
testInvokeAll2(mainPool()); |
793 |
} |
794 |
public void testInvokeAll2_Singleton() { |
795 |
testInvokeAll2(singletonPool()); |
796 |
} |
797 |
public void testInvokeAll2(ForkJoinPool pool) { |
798 |
RecursiveAction a = new CheckedRecursiveAction() { |
799 |
protected void realCompute() { |
800 |
AsyncFib[] tasks = { |
801 |
new AsyncFib(8), |
802 |
new AsyncFib(9), |
803 |
}; |
804 |
invokeAll(tasks[0], tasks[1]); |
805 |
for (AsyncFib task : tasks) assertTrue(task.isDone()); |
806 |
for (AsyncFib task : tasks) task.checkCompletedNormally(); |
807 |
}}; |
808 |
testInvokeOnPool(pool, a); |
809 |
} |
810 |
|
811 |
/** |
812 |
* invokeAll(tasks) with > 2 argument invokes tasks |
813 |
*/ |
814 |
public void testInvokeAll3() { |
815 |
testInvokeAll3(mainPool()); |
816 |
} |
817 |
public void testInvokeAll3_Singleton() { |
818 |
testInvokeAll3(singletonPool()); |
819 |
} |
820 |
public void testInvokeAll3(ForkJoinPool pool) { |
821 |
RecursiveAction a = new CheckedRecursiveAction() { |
822 |
protected void realCompute() { |
823 |
AsyncFib[] tasks = { |
824 |
new AsyncFib(8), |
825 |
new AsyncFib(9), |
826 |
new AsyncFib(7), |
827 |
}; |
828 |
invokeAll(tasks[0], tasks[1], tasks[2]); |
829 |
for (AsyncFib task : tasks) assertTrue(task.isDone()); |
830 |
for (AsyncFib task : tasks) task.checkCompletedNormally(); |
831 |
}}; |
832 |
testInvokeOnPool(pool, a); |
833 |
} |
834 |
|
835 |
/** |
836 |
* invokeAll(collection) invokes all tasks in the collection |
837 |
*/ |
838 |
public void testInvokeAllCollection() { |
839 |
testInvokeAllCollection(mainPool()); |
840 |
} |
841 |
public void testInvokeAllCollection_Singleton() { |
842 |
testInvokeAllCollection(singletonPool()); |
843 |
} |
844 |
public void testInvokeAllCollection(ForkJoinPool pool) { |
845 |
RecursiveAction a = new CheckedRecursiveAction() { |
846 |
protected void realCompute() { |
847 |
AsyncFib[] tasks = { |
848 |
new AsyncFib(8), |
849 |
new AsyncFib(9), |
850 |
new AsyncFib(7), |
851 |
}; |
852 |
invokeAll(Arrays.asList(tasks)); |
853 |
for (AsyncFib task : tasks) assertTrue(task.isDone()); |
854 |
for (AsyncFib task : tasks) task.checkCompletedNormally(); |
855 |
}}; |
856 |
testInvokeOnPool(pool, a); |
857 |
} |
858 |
|
859 |
/** |
860 |
* invokeAll(tasks) with any null task throws NullPointerException |
861 |
*/ |
862 |
public void testInvokeAllNullTask() { |
863 |
testInvokeAllNullTask(mainPool()); |
864 |
} |
865 |
public void testInvokeAllNullTask_Singleton() { |
866 |
testInvokeAllNullTask(singletonPool()); |
867 |
} |
868 |
public void testInvokeAllNullTask(ForkJoinPool pool) { |
869 |
RecursiveAction a = new CheckedRecursiveAction() { |
870 |
protected void realCompute() { |
871 |
AsyncFib nul = null; |
872 |
Runnable[] throwingActions = { |
873 |
() -> invokeAll(nul), |
874 |
() -> invokeAll(nul, nul), |
875 |
() -> invokeAll(new AsyncFib(8), new AsyncFib(9), nul), |
876 |
() -> invokeAll(new AsyncFib(8), nul, new AsyncFib(9)), |
877 |
() -> invokeAll(nul, new AsyncFib(8), new AsyncFib(9)), |
878 |
}; |
879 |
assertThrows(NullPointerException.class, throwingActions); |
880 |
}}; |
881 |
testInvokeOnPool(pool, a); |
882 |
} |
883 |
|
884 |
/** |
885 |
* invokeAll(tasks) with 1 argument throws exception if task does |
886 |
*/ |
887 |
public void testAbnormalInvokeAll1() { |
888 |
testAbnormalInvokeAll1(mainPool()); |
889 |
} |
890 |
public void testAbnormalInvokeAll1_Singleton() { |
891 |
testAbnormalInvokeAll1(singletonPool()); |
892 |
} |
893 |
public void testAbnormalInvokeAll1(ForkJoinPool pool) { |
894 |
RecursiveAction a = new CheckedRecursiveAction() { |
895 |
protected void realCompute() { |
896 |
FailingAsyncFib g = new FailingAsyncFib(9); |
897 |
try { |
898 |
invokeAll(g); |
899 |
shouldThrow(); |
900 |
} catch (FJException success) { |
901 |
checkCompletedAbnormally(g, success); |
902 |
} |
903 |
}}; |
904 |
testInvokeOnPool(pool, a); |
905 |
} |
906 |
|
907 |
/** |
908 |
* invokeAll(t1, t2) throw exception if any task does |
909 |
*/ |
910 |
public void testAbnormalInvokeAll2() { |
911 |
testAbnormalInvokeAll2(mainPool()); |
912 |
} |
913 |
public void testAbnormalInvokeAll2_Singleton() { |
914 |
testAbnormalInvokeAll2(singletonPool()); |
915 |
} |
916 |
public void testAbnormalInvokeAll2(ForkJoinPool pool) { |
917 |
RecursiveAction a = new CheckedRecursiveAction() { |
918 |
protected void realCompute() { |
919 |
AsyncFib f = new AsyncFib(8); |
920 |
FailingAsyncFib g = new FailingAsyncFib(9); |
921 |
ForkJoinTask[] tasks = { f, g }; |
922 |
shuffle(tasks); |
923 |
try { |
924 |
invokeAll(tasks[0], tasks[1]); |
925 |
shouldThrow(); |
926 |
} catch (FJException success) { |
927 |
checkCompletedAbnormally(g, success); |
928 |
} |
929 |
}}; |
930 |
testInvokeOnPool(pool, a); |
931 |
} |
932 |
|
933 |
/** |
934 |
* invokeAll(tasks) with > 2 argument throws exception if any task does |
935 |
*/ |
936 |
public void testAbnormalInvokeAll3() { |
937 |
testAbnormalInvokeAll3(mainPool()); |
938 |
} |
939 |
public void testAbnormalInvokeAll3_Singleton() { |
940 |
testAbnormalInvokeAll3(singletonPool()); |
941 |
} |
942 |
public void testAbnormalInvokeAll3(ForkJoinPool pool) { |
943 |
RecursiveAction a = new CheckedRecursiveAction() { |
944 |
protected void realCompute() { |
945 |
AsyncFib f = new AsyncFib(8); |
946 |
FailingAsyncFib g = new FailingAsyncFib(9); |
947 |
AsyncFib h = new AsyncFib(7); |
948 |
ForkJoinTask[] tasks = { f, g, h }; |
949 |
shuffle(tasks); |
950 |
try { |
951 |
invokeAll(tasks[0], tasks[1], tasks[2]); |
952 |
shouldThrow(); |
953 |
} catch (FJException success) { |
954 |
checkCompletedAbnormally(g, success); |
955 |
} |
956 |
}}; |
957 |
testInvokeOnPool(pool, a); |
958 |
} |
959 |
|
960 |
/** |
961 |
* invokeAll(collection) throws exception if any task does |
962 |
*/ |
963 |
public void testAbnormalInvokeAllCollection() { |
964 |
testAbnormalInvokeAllCollection(mainPool()); |
965 |
} |
966 |
public void testAbnormalInvokeAllCollection_Singleton() { |
967 |
testAbnormalInvokeAllCollection(singletonPool()); |
968 |
} |
969 |
public void testAbnormalInvokeAllCollection(ForkJoinPool pool) { |
970 |
RecursiveAction a = new CheckedRecursiveAction() { |
971 |
protected void realCompute() { |
972 |
FailingAsyncFib f = new FailingAsyncFib(8); |
973 |
AsyncFib g = new AsyncFib(9); |
974 |
AsyncFib h = new AsyncFib(7); |
975 |
ForkJoinTask[] tasks = { f, g, h }; |
976 |
shuffle(tasks); |
977 |
try { |
978 |
invokeAll(Arrays.asList(tasks)); |
979 |
shouldThrow(); |
980 |
} catch (FJException success) { |
981 |
checkCompletedAbnormally(f, success); |
982 |
} |
983 |
}}; |
984 |
testInvokeOnPool(pool, a); |
985 |
} |
986 |
|
987 |
/** |
988 |
* tryUnfork returns true for most recent unexecuted task, |
989 |
* and suppresses execution |
990 |
*/ |
991 |
public void testTryUnfork() { |
992 |
RecursiveAction a = new CheckedRecursiveAction() { |
993 |
protected void realCompute() { |
994 |
AsyncFib g = new AsyncFib(9); |
995 |
assertSame(g, g.fork()); |
996 |
AsyncFib f = new AsyncFib(8); |
997 |
assertSame(f, f.fork()); |
998 |
assertTrue(f.tryUnfork()); |
999 |
helpQuiesce(); |
1000 |
checkNotDone(f); |
1001 |
g.checkCompletedNormally(); |
1002 |
}}; |
1003 |
testInvokeOnPool(singletonPool(), a); |
1004 |
} |
1005 |
|
1006 |
/** |
1007 |
* getSurplusQueuedTaskCount returns > 0 when |
1008 |
* there are more tasks than threads |
1009 |
*/ |
1010 |
public void testGetSurplusQueuedTaskCount() { |
1011 |
RecursiveAction a = new CheckedRecursiveAction() { |
1012 |
protected void realCompute() { |
1013 |
AsyncFib h = new AsyncFib(7); |
1014 |
assertSame(h, h.fork()); |
1015 |
AsyncFib g = new AsyncFib(9); |
1016 |
assertSame(g, g.fork()); |
1017 |
AsyncFib f = new AsyncFib(8); |
1018 |
assertSame(f, f.fork()); |
1019 |
assertTrue(getSurplusQueuedTaskCount() > 0); |
1020 |
helpQuiesce(); |
1021 |
assertEquals(0, getSurplusQueuedTaskCount()); |
1022 |
f.checkCompletedNormally(); |
1023 |
g.checkCompletedNormally(); |
1024 |
h.checkCompletedNormally(); |
1025 |
}}; |
1026 |
testInvokeOnPool(singletonPool(), a); |
1027 |
} |
1028 |
|
1029 |
/** |
1030 |
* peekNextLocalTask returns most recent unexecuted task. |
1031 |
*/ |
1032 |
public void testPeekNextLocalTask() { |
1033 |
RecursiveAction a = new CheckedRecursiveAction() { |
1034 |
protected void realCompute() { |
1035 |
AsyncFib g = new AsyncFib(9); |
1036 |
assertSame(g, g.fork()); |
1037 |
AsyncFib f = new AsyncFib(8); |
1038 |
assertSame(f, f.fork()); |
1039 |
assertSame(f, peekNextLocalTask()); |
1040 |
assertNull(f.join()); |
1041 |
f.checkCompletedNormally(); |
1042 |
helpQuiesce(); |
1043 |
g.checkCompletedNormally(); |
1044 |
}}; |
1045 |
testInvokeOnPool(singletonPool(), a); |
1046 |
} |
1047 |
|
1048 |
/** |
1049 |
* pollNextLocalTask returns most recent unexecuted task without |
1050 |
* executing it |
1051 |
*/ |
1052 |
public void testPollNextLocalTask() { |
1053 |
RecursiveAction a = new CheckedRecursiveAction() { |
1054 |
protected void realCompute() { |
1055 |
AsyncFib g = new AsyncFib(9); |
1056 |
assertSame(g, g.fork()); |
1057 |
AsyncFib f = new AsyncFib(8); |
1058 |
assertSame(f, f.fork()); |
1059 |
assertSame(f, pollNextLocalTask()); |
1060 |
helpQuiesce(); |
1061 |
checkNotDone(f); |
1062 |
g.checkCompletedNormally(); |
1063 |
}}; |
1064 |
testInvokeOnPool(singletonPool(), a); |
1065 |
} |
1066 |
|
1067 |
/** |
1068 |
* pollTask returns an unexecuted task without executing it |
1069 |
*/ |
1070 |
public void testPollTask() { |
1071 |
RecursiveAction a = new CheckedRecursiveAction() { |
1072 |
protected void realCompute() { |
1073 |
AsyncFib g = new AsyncFib(9); |
1074 |
assertSame(g, g.fork()); |
1075 |
AsyncFib f = new AsyncFib(8); |
1076 |
assertSame(f, f.fork()); |
1077 |
assertSame(f, pollTask()); |
1078 |
helpQuiesce(); |
1079 |
checkNotDone(f); |
1080 |
g.checkCompletedNormally(); |
1081 |
}}; |
1082 |
testInvokeOnPool(singletonPool(), a); |
1083 |
} |
1084 |
|
1085 |
/** |
1086 |
* peekNextLocalTask returns least recent unexecuted task in async mode |
1087 |
*/ |
1088 |
public void testPeekNextLocalTaskAsync() { |
1089 |
RecursiveAction a = new CheckedRecursiveAction() { |
1090 |
protected void realCompute() { |
1091 |
AsyncFib g = new AsyncFib(9); |
1092 |
assertSame(g, g.fork()); |
1093 |
AsyncFib f = new AsyncFib(8); |
1094 |
assertSame(f, f.fork()); |
1095 |
assertSame(g, peekNextLocalTask()); |
1096 |
assertNull(f.join()); |
1097 |
helpQuiesce(); |
1098 |
f.checkCompletedNormally(); |
1099 |
g.checkCompletedNormally(); |
1100 |
}}; |
1101 |
testInvokeOnPool(asyncSingletonPool(), a); |
1102 |
} |
1103 |
|
1104 |
/** |
1105 |
* pollNextLocalTask returns least recent unexecuted task without |
1106 |
* executing it, in async mode |
1107 |
*/ |
1108 |
public void testPollNextLocalTaskAsync() { |
1109 |
RecursiveAction a = new CheckedRecursiveAction() { |
1110 |
protected void realCompute() { |
1111 |
AsyncFib g = new AsyncFib(9); |
1112 |
assertSame(g, g.fork()); |
1113 |
AsyncFib f = new AsyncFib(8); |
1114 |
assertSame(f, f.fork()); |
1115 |
assertSame(g, pollNextLocalTask()); |
1116 |
helpQuiesce(); |
1117 |
f.checkCompletedNormally(); |
1118 |
checkNotDone(g); |
1119 |
}}; |
1120 |
testInvokeOnPool(asyncSingletonPool(), a); |
1121 |
} |
1122 |
|
1123 |
/** |
1124 |
* pollTask returns an unexecuted task without executing it, in |
1125 |
* async mode |
1126 |
*/ |
1127 |
public void testPollTaskAsync() { |
1128 |
RecursiveAction a = new CheckedRecursiveAction() { |
1129 |
protected void realCompute() { |
1130 |
AsyncFib g = new AsyncFib(9); |
1131 |
assertSame(g, g.fork()); |
1132 |
AsyncFib f = new AsyncFib(8); |
1133 |
assertSame(f, f.fork()); |
1134 |
assertSame(g, pollTask()); |
1135 |
helpQuiesce(); |
1136 |
f.checkCompletedNormally(); |
1137 |
checkNotDone(g); |
1138 |
}}; |
1139 |
testInvokeOnPool(asyncSingletonPool(), a); |
1140 |
} |
1141 |
|
1142 |
/** |
1143 |
* ForkJoinTask.quietlyComplete returns when task completes |
1144 |
* normally without setting a value. The most recent value |
1145 |
* established by setRawResult(V) (or null by default) is returned |
1146 |
* from invoke. |
1147 |
*/ |
1148 |
public void testQuietlyComplete() { |
1149 |
RecursiveAction a = new CheckedRecursiveAction() { |
1150 |
protected void realCompute() { |
1151 |
AsyncFib f = new AsyncFib(8); |
1152 |
f.quietlyComplete(); |
1153 |
assertEquals(8, f.number); |
1154 |
assertTrue(f.isDone()); |
1155 |
assertFalse(f.isCancelled()); |
1156 |
assertTrue(f.isCompletedNormally()); |
1157 |
assertFalse(f.isCompletedAbnormally()); |
1158 |
assertNull(f.getException()); |
1159 |
}}; |
1160 |
testInvokeOnPool(mainPool(), a); |
1161 |
} |
1162 |
|
1163 |
// jdk9 |
1164 |
|
1165 |
/** |
1166 |
* pollSubmission returns unexecuted submitted task, if present |
1167 |
*/ |
1168 |
public void testPollSubmission() { |
1169 |
final CountDownLatch done = new CountDownLatch(1); |
1170 |
final ForkJoinTask a = ForkJoinTask.adapt(awaiter(done)); |
1171 |
final ForkJoinTask b = ForkJoinTask.adapt(awaiter(done)); |
1172 |
final ForkJoinTask c = ForkJoinTask.adapt(awaiter(done)); |
1173 |
final ForkJoinPool p = singletonPool(); |
1174 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
1175 |
Thread external = new Thread(new CheckedRunnable() { |
1176 |
public void realRun() { |
1177 |
p.execute(a); |
1178 |
p.execute(b); |
1179 |
p.execute(c); |
1180 |
}}); |
1181 |
RecursiveAction s = new CheckedRecursiveAction() { |
1182 |
protected void realCompute() { |
1183 |
external.start(); |
1184 |
try { |
1185 |
external.join(); |
1186 |
} catch (Exception ex) { |
1187 |
threadUnexpectedException(ex); |
1188 |
} |
1189 |
assertTrue(p.hasQueuedSubmissions()); |
1190 |
assertTrue(Thread.currentThread() instanceof ForkJoinWorkerThread); |
1191 |
ForkJoinTask r = ForkJoinTask.pollSubmission(); |
1192 |
assertTrue(r == a || r == b || r == c); |
1193 |
assertFalse(r.isDone()); |
1194 |
}}; |
1195 |
p.invoke(s); |
1196 |
} |
1197 |
} |
1198 |
|
1199 |
} |