| 29 |
|
import java.util.concurrent.ThreadFactory; |
| 30 |
|
import java.util.concurrent.ThreadPoolExecutor; |
| 31 |
|
import java.util.concurrent.TimeUnit; |
| 32 |
+ |
import java.util.concurrent.atomic.AtomicInteger; |
| 33 |
|
|
| 34 |
|
import junit.framework.Test; |
| 35 |
|
import junit.framework.TestSuite; |
| 628 |
|
* shutdownNow returns a list containing tasks that were not run, |
| 629 |
|
* and those tasks are drained from the queue |
| 630 |
|
*/ |
| 631 |
< |
public void testShutdownNow() { |
| 631 |
> |
public void testShutdownNow() throws InterruptedException { |
| 632 |
> |
final int poolSize = 2; |
| 633 |
> |
final int count = 5; |
| 634 |
> |
final AtomicInteger ran = new AtomicInteger(0); |
| 635 |
|
final ThreadPoolExecutor p = |
| 636 |
< |
new ThreadPoolExecutor(1, 1, |
| 636 |
> |
new ThreadPoolExecutor(poolSize, poolSize, |
| 637 |
|
LONG_DELAY_MS, MILLISECONDS, |
| 638 |
|
new ArrayBlockingQueue<Runnable>(10)); |
| 639 |
< |
List l; |
| 640 |
< |
try { |
| 641 |
< |
for (int i = 0; i < 5; i++) |
| 638 |
< |
p.execute(new MediumPossiblyInterruptedRunnable()); |
| 639 |
< |
} |
| 640 |
< |
finally { |
| 639 |
> |
CountDownLatch threadsStarted = new CountDownLatch(poolSize); |
| 640 |
> |
CheckedRunnable waiter = new CheckedRunnable() { public void realRun() { |
| 641 |
> |
threadsStarted.countDown(); |
| 642 |
|
try { |
| 643 |
< |
l = p.shutdownNow(); |
| 644 |
< |
} catch (SecurityException ok) { return; } |
| 643 |
> |
MILLISECONDS.sleep(2 * LONG_DELAY_MS); |
| 644 |
> |
} catch (InterruptedException success) {} |
| 645 |
> |
ran.getAndIncrement(); |
| 646 |
> |
}}; |
| 647 |
> |
for (int i = 0; i < count; i++) |
| 648 |
> |
p.execute(waiter); |
| 649 |
> |
assertTrue(threadsStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
| 650 |
> |
final List<Runnable> queuedTasks; |
| 651 |
> |
try { |
| 652 |
> |
queuedTasks = p.shutdownNow(); |
| 653 |
> |
} catch (SecurityException ok) { |
| 654 |
> |
return; // Allowed in case test doesn't have privs |
| 655 |
|
} |
| 656 |
|
assertTrue(p.isShutdown()); |
| 657 |
|
assertTrue(p.getQueue().isEmpty()); |
| 658 |
< |
assertTrue(l.size() <= 4); |
| 658 |
> |
assertEquals(count - poolSize, queuedTasks.size()); |
| 659 |
> |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
| 660 |
> |
assertTrue(p.isTerminated()); |
| 661 |
> |
assertEquals(poolSize, ran.get()); |
| 662 |
|
} |
| 663 |
|
|
| 664 |
|
// Exception Tests |
