4 |
|
* http://creativecommons.org/publicdomain/zero/1.0/ |
5 |
|
*/ |
6 |
|
|
7 |
< |
import junit.framework.*; |
7 |
> |
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
8 |
> |
import static java.util.concurrent.TimeUnit.SECONDS; |
9 |
> |
|
10 |
> |
import java.util.HashSet; |
11 |
|
import java.util.concurrent.CancellationException; |
12 |
+ |
import java.util.concurrent.CountedCompleter; |
13 |
|
import java.util.concurrent.ExecutionException; |
14 |
|
import java.util.concurrent.ForkJoinPool; |
15 |
|
import java.util.concurrent.ForkJoinTask; |
12 |
– |
import java.util.concurrent.ForkJoinWorkerThread; |
16 |
|
import java.util.concurrent.RecursiveAction; |
14 |
– |
import java.util.concurrent.CountedCompleter; |
15 |
– |
import java.util.concurrent.ThreadLocalRandom; |
16 |
– |
import java.util.concurrent.TimeUnit; |
17 |
|
import java.util.concurrent.TimeoutException; |
18 |
< |
import static java.util.concurrent.TimeUnit.SECONDS; |
19 |
< |
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
20 |
< |
import java.util.Arrays; |
21 |
< |
import java.util.HashSet; |
18 |
> |
|
19 |
> |
import junit.framework.Test; |
20 |
> |
import junit.framework.TestSuite; |
21 |
|
|
22 |
|
public class ForkJoinPool8Test extends JSR166TestCase { |
23 |
|
public static void main(String[] args) { |
478 |
|
FailingFibAction f = new FailingFibAction(8); |
479 |
|
assertSame(f, f.fork()); |
480 |
|
try { |
481 |
< |
f.get(5L, TimeUnit.SECONDS); |
481 |
> |
f.get(5L, SECONDS); |
482 |
|
shouldThrow(); |
483 |
|
} catch (ExecutionException success) { |
484 |
|
Throwable cause = success.getCause(); |
1540 |
|
* timeout elapsed |
1541 |
|
*/ |
1542 |
|
public void testAwaitQuiescence2() throws Exception { |
1543 |
+ |
/** |
1544 |
+ |
* """It is possible to disable or limit the use of threads in the |
1545 |
+ |
* common pool by setting the parallelism property to zero. However |
1546 |
+ |
* doing so may cause unjoined tasks to never be executed.""" |
1547 |
+ |
*/ |
1548 |
+ |
if ("0".equals(System.getProperty( |
1549 |
+ |
"java.util.concurrent.ForkJoinPool.common.parallelism"))) |
1550 |
+ |
return; |
1551 |
|
final ForkJoinPool p = new ForkJoinPool(); |
1552 |
|
try { |
1553 |
|
assertTrue(p.isQuiescent()); |
1554 |
< |
for (;;) { |
1555 |
< |
final long startTime = System.nanoTime(); |
1556 |
< |
ForkJoinTask a = new CheckedRecursiveAction() { |
1557 |
< |
protected void realCompute() { |
1558 |
< |
FibAction f = new FibAction(8); |
1559 |
< |
assertSame(f, f.fork()); |
1560 |
< |
ForkJoinTask.helpQuiesce(); |
1561 |
< |
while (!f.isDone()) { |
1562 |
< |
assertFalse(p.getAsyncMode()); |
1563 |
< |
assertFalse(p.isShutdown()); |
1564 |
< |
assertFalse(p.isTerminating()); |
1565 |
< |
assertFalse(p.isTerminated()); |
1566 |
< |
Thread.yield(); |
1567 |
< |
} |
1568 |
< |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1569 |
< |
assertEquals(0, ForkJoinTask.getQueuedTaskCount()); |
1570 |
< |
assertEquals(21, f.result); |
1571 |
< |
}}; |
1572 |
< |
p.execute(a); |
1573 |
< |
if (a.isDone() || p.isQuiescent()) |
1574 |
< |
continue; // Already done so cannot test; retry |
1575 |
< |
assertTrue(p.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS)); |
1576 |
< |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1577 |
< |
assertTrue(p.isQuiescent()); |
1578 |
< |
assertTrue(a.isDone()); |
1579 |
< |
assertEquals(0, p.getQueuedTaskCount()); |
1580 |
< |
assertFalse(p.getAsyncMode()); |
1581 |
< |
assertEquals(0, p.getActiveThreadCount()); |
1582 |
< |
assertEquals(0, p.getQueuedTaskCount()); |
1583 |
< |
assertEquals(0, p.getQueuedSubmissionCount()); |
1584 |
< |
assertFalse(p.hasQueuedSubmissions()); |
1578 |
< |
assertFalse(p.isShutdown()); |
1579 |
< |
assertFalse(p.isTerminating()); |
1580 |
< |
assertFalse(p.isTerminated()); |
1581 |
< |
break; |
1582 |
< |
} |
1554 |
> |
final long startTime = System.nanoTime(); |
1555 |
> |
ForkJoinTask a = new CheckedRecursiveAction() { |
1556 |
> |
protected void realCompute() { |
1557 |
> |
FibAction f = new FibAction(8); |
1558 |
> |
assertSame(f, f.fork()); |
1559 |
> |
while (!f.isDone() |
1560 |
> |
&& millisElapsedSince(startTime) < LONG_DELAY_MS) { |
1561 |
> |
assertFalse(p.getAsyncMode()); |
1562 |
> |
assertFalse(p.isShutdown()); |
1563 |
> |
assertFalse(p.isTerminating()); |
1564 |
> |
assertFalse(p.isTerminated()); |
1565 |
> |
Thread.yield(); |
1566 |
> |
} |
1567 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1568 |
> |
assertEquals(0, ForkJoinTask.getQueuedTaskCount()); |
1569 |
> |
assertEquals(21, f.result); |
1570 |
> |
}}; |
1571 |
> |
p.execute(a); |
1572 |
> |
assertTrue(p.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS)); |
1573 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1574 |
> |
assertTrue(p.isQuiescent()); |
1575 |
> |
assertTrue(a.isDone()); |
1576 |
> |
assertEquals(0, p.getQueuedTaskCount()); |
1577 |
> |
assertFalse(p.getAsyncMode()); |
1578 |
> |
assertEquals(0, p.getActiveThreadCount()); |
1579 |
> |
assertEquals(0, p.getQueuedTaskCount()); |
1580 |
> |
assertEquals(0, p.getQueuedSubmissionCount()); |
1581 |
> |
assertFalse(p.hasQueuedSubmissions()); |
1582 |
> |
assertFalse(p.isShutdown()); |
1583 |
> |
assertFalse(p.isTerminating()); |
1584 |
> |
assertFalse(p.isTerminated()); |
1585 |
|
} finally { |
1586 |
|
joinPool(p); |
1587 |
|
} |