57 |
|
public Collection<Thread> getQueuedThreads() { |
58 |
|
return super.getQueuedThreads(); |
59 |
|
} |
60 |
+ |
public Collection<Thread> getWaitingThreads(Condition c) { |
61 |
+ |
return super.getWaitingThreads(c); |
62 |
+ |
} |
63 |
+ |
|
64 |
|
|
65 |
|
} |
66 |
|
|
118 |
|
|
119 |
|
|
120 |
|
/** |
121 |
+ |
* hasQueuedThreads reports whether there are waiting threads |
122 |
+ |
*/ |
123 |
+ |
public void testhasQueuedThreads() { |
124 |
+ |
final ReentrantLock lock = new ReentrantLock(); |
125 |
+ |
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
126 |
+ |
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
127 |
+ |
try { |
128 |
+ |
assertFalse(lock.hasQueuedThreads()); |
129 |
+ |
lock.lock(); |
130 |
+ |
t1.start(); |
131 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
132 |
+ |
assertTrue(lock.hasQueuedThreads()); |
133 |
+ |
t2.start(); |
134 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
135 |
+ |
assertTrue(lock.hasQueuedThreads()); |
136 |
+ |
t1.interrupt(); |
137 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
138 |
+ |
assertTrue(lock.hasQueuedThreads()); |
139 |
+ |
lock.unlock(); |
140 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
141 |
+ |
assertFalse(lock.hasQueuedThreads()); |
142 |
+ |
t1.join(); |
143 |
+ |
t2.join(); |
144 |
+ |
} catch(Exception e){ |
145 |
+ |
unexpectedException(); |
146 |
+ |
} |
147 |
+ |
} |
148 |
+ |
|
149 |
+ |
/** |
150 |
|
* getQueueLength reports number of waiting threads |
151 |
|
*/ |
152 |
|
public void testGetQueueLength() { |
452 |
|
*/ |
453 |
|
public void testAwait() { |
454 |
|
final ReentrantLock lock = new ReentrantLock(); |
455 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition(); |
455 |
> |
final Condition c = lock.newCondition(); |
456 |
|
Thread t = new Thread(new Runnable() { |
457 |
|
public void run() { |
458 |
|
try { |
481 |
|
} |
482 |
|
|
483 |
|
/** |
484 |
+ |
* hasWaiters throws IAE if not owned |
485 |
+ |
*/ |
486 |
+ |
public void testHasWaitersIAE() { |
487 |
+ |
final ReentrantLock lock = new ReentrantLock(); |
488 |
+ |
final Condition c = (lock.newCondition()); |
489 |
+ |
final ReentrantLock lock2 = new ReentrantLock(); |
490 |
+ |
try { |
491 |
+ |
lock2.hasWaiters(c); |
492 |
+ |
shouldThrow(); |
493 |
+ |
} catch (IllegalArgumentException success) { |
494 |
+ |
} catch (Exception ex) { |
495 |
+ |
unexpectedException(); |
496 |
+ |
} |
497 |
+ |
} |
498 |
+ |
|
499 |
+ |
/** |
500 |
+ |
* hasWaiters throws IMSE if not locked |
501 |
+ |
*/ |
502 |
+ |
public void testHasWaitersIMSE() { |
503 |
+ |
final ReentrantLock lock = new ReentrantLock(); |
504 |
+ |
final Condition c = (lock.newCondition()); |
505 |
+ |
try { |
506 |
+ |
lock.hasWaiters(c); |
507 |
+ |
shouldThrow(); |
508 |
+ |
} catch (IllegalMonitorStateException success) { |
509 |
+ |
} catch (Exception ex) { |
510 |
+ |
unexpectedException(); |
511 |
+ |
} |
512 |
+ |
} |
513 |
+ |
|
514 |
+ |
|
515 |
+ |
/** |
516 |
+ |
* getWaitQueueLength throws IAE if not owned |
517 |
+ |
*/ |
518 |
+ |
public void testGetWaitQueueLengthIAE() { |
519 |
+ |
final ReentrantLock lock = new ReentrantLock(); |
520 |
+ |
final Condition c = (lock.newCondition()); |
521 |
+ |
final ReentrantLock lock2 = new ReentrantLock(); |
522 |
+ |
try { |
523 |
+ |
lock2.getWaitQueueLength(c); |
524 |
+ |
shouldThrow(); |
525 |
+ |
} catch (IllegalArgumentException success) { |
526 |
+ |
} catch (Exception ex) { |
527 |
+ |
unexpectedException(); |
528 |
+ |
} |
529 |
+ |
} |
530 |
+ |
|
531 |
+ |
/** |
532 |
+ |
* getWaitQueueLength throws IMSE if not locked |
533 |
+ |
*/ |
534 |
+ |
public void testGetWaitQueueLengthIMSE() { |
535 |
+ |
final ReentrantLock lock = new ReentrantLock(); |
536 |
+ |
final Condition c = (lock.newCondition()); |
537 |
+ |
try { |
538 |
+ |
lock.getWaitQueueLength(c); |
539 |
+ |
shouldThrow(); |
540 |
+ |
} catch (IllegalMonitorStateException success) { |
541 |
+ |
} catch (Exception ex) { |
542 |
+ |
unexpectedException(); |
543 |
+ |
} |
544 |
+ |
} |
545 |
+ |
|
546 |
+ |
|
547 |
+ |
/** |
548 |
+ |
* getWaitingThreads throws IAE if not owned |
549 |
+ |
*/ |
550 |
+ |
public void testGetWaitingThreadsIAE() { |
551 |
+ |
final PublicReentrantLock lock = new PublicReentrantLock(); |
552 |
+ |
final Condition c = (lock.newCondition()); |
553 |
+ |
final PublicReentrantLock lock2 = new PublicReentrantLock(); |
554 |
+ |
try { |
555 |
+ |
lock2.getWaitingThreads(c); |
556 |
+ |
shouldThrow(); |
557 |
+ |
} catch (IllegalArgumentException success) { |
558 |
+ |
} catch (Exception ex) { |
559 |
+ |
unexpectedException(); |
560 |
+ |
} |
561 |
+ |
} |
562 |
+ |
|
563 |
+ |
/** |
564 |
+ |
* getWaitingThreads throws IMSE if not locked |
565 |
+ |
*/ |
566 |
+ |
public void testGetWaitingThreadsIMSE() { |
567 |
+ |
final PublicReentrantLock lock = new PublicReentrantLock(); |
568 |
+ |
final Condition c = (lock.newCondition()); |
569 |
+ |
try { |
570 |
+ |
lock.getWaitingThreads(c); |
571 |
+ |
shouldThrow(); |
572 |
+ |
} catch (IllegalMonitorStateException success) { |
573 |
+ |
} catch (Exception ex) { |
574 |
+ |
unexpectedException(); |
575 |
+ |
} |
576 |
+ |
} |
577 |
+ |
|
578 |
+ |
|
579 |
+ |
|
580 |
+ |
/** |
581 |
|
* hasWaiters returns true when a thread is waiting, else false |
582 |
|
*/ |
583 |
|
public void testHasWaiters() { |
584 |
|
final ReentrantLock lock = new ReentrantLock(); |
585 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition(); |
585 |
> |
final Condition c = lock.newCondition(); |
586 |
|
Thread t = new Thread(new Runnable() { |
587 |
|
public void run() { |
588 |
|
try { |
589 |
|
lock.lock(); |
590 |
< |
threadAssertFalse(c.hasWaiters()); |
591 |
< |
threadAssertEquals(0, c.getWaitQueueLength()); |
590 |
> |
threadAssertFalse(lock.hasWaiters(c)); |
591 |
> |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
592 |
|
c.await(); |
593 |
|
lock.unlock(); |
594 |
|
} |
602 |
|
t.start(); |
603 |
|
Thread.sleep(SHORT_DELAY_MS); |
604 |
|
lock.lock(); |
605 |
< |
assertTrue(c.hasWaiters()); |
606 |
< |
assertEquals(1, c.getWaitQueueLength()); |
605 |
> |
assertTrue(lock.hasWaiters(c)); |
606 |
> |
assertEquals(1, lock.getWaitQueueLength(c)); |
607 |
|
c.signal(); |
608 |
|
lock.unlock(); |
609 |
|
Thread.sleep(SHORT_DELAY_MS); |
610 |
|
lock.lock(); |
611 |
< |
assertFalse(c.hasWaiters()); |
612 |
< |
assertEquals(0, c.getWaitQueueLength()); |
611 |
> |
assertFalse(lock.hasWaiters(c)); |
612 |
> |
assertEquals(0, lock.getWaitQueueLength(c)); |
613 |
|
lock.unlock(); |
614 |
|
t.join(SHORT_DELAY_MS); |
615 |
|
assertFalse(t.isAlive()); |
624 |
|
*/ |
625 |
|
public void testGetWaitQueueLength() { |
626 |
|
final ReentrantLock lock = new ReentrantLock(); |
627 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition(); |
627 |
> |
final Condition c = lock.newCondition(); |
628 |
> |
Thread t1 = new Thread(new Runnable() { |
629 |
> |
public void run() { |
630 |
> |
try { |
631 |
> |
lock.lock(); |
632 |
> |
threadAssertFalse(lock.hasWaiters(c)); |
633 |
> |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
634 |
> |
c.await(); |
635 |
> |
lock.unlock(); |
636 |
> |
} |
637 |
> |
catch(InterruptedException e) { |
638 |
> |
threadUnexpectedException(); |
639 |
> |
} |
640 |
> |
} |
641 |
> |
}); |
642 |
> |
|
643 |
> |
Thread t2 = new Thread(new Runnable() { |
644 |
> |
public void run() { |
645 |
> |
try { |
646 |
> |
lock.lock(); |
647 |
> |
threadAssertTrue(lock.hasWaiters(c)); |
648 |
> |
threadAssertEquals(1, lock.getWaitQueueLength(c)); |
649 |
> |
c.await(); |
650 |
> |
lock.unlock(); |
651 |
> |
} |
652 |
> |
catch(InterruptedException e) { |
653 |
> |
threadUnexpectedException(); |
654 |
> |
} |
655 |
> |
} |
656 |
> |
}); |
657 |
> |
|
658 |
> |
try { |
659 |
> |
t1.start(); |
660 |
> |
Thread.sleep(SHORT_DELAY_MS); |
661 |
> |
t2.start(); |
662 |
> |
Thread.sleep(SHORT_DELAY_MS); |
663 |
> |
lock.lock(); |
664 |
> |
assertTrue(lock.hasWaiters(c)); |
665 |
> |
assertEquals(2, lock.getWaitQueueLength(c)); |
666 |
> |
c.signalAll(); |
667 |
> |
lock.unlock(); |
668 |
> |
Thread.sleep(SHORT_DELAY_MS); |
669 |
> |
lock.lock(); |
670 |
> |
assertFalse(lock.hasWaiters(c)); |
671 |
> |
assertEquals(0, lock.getWaitQueueLength(c)); |
672 |
> |
lock.unlock(); |
673 |
> |
t1.join(SHORT_DELAY_MS); |
674 |
> |
t2.join(SHORT_DELAY_MS); |
675 |
> |
assertFalse(t1.isAlive()); |
676 |
> |
assertFalse(t2.isAlive()); |
677 |
> |
} |
678 |
> |
catch (Exception ex) { |
679 |
> |
unexpectedException(); |
680 |
> |
} |
681 |
> |
} |
682 |
> |
|
683 |
> |
/** |
684 |
> |
* getWaitingThreads returns only and all waiting threads |
685 |
> |
*/ |
686 |
> |
public void testGetWaitingThreads() { |
687 |
> |
final PublicReentrantLock lock = new PublicReentrantLock(); |
688 |
> |
final Condition c = lock.newCondition(); |
689 |
|
Thread t1 = new Thread(new Runnable() { |
690 |
|
public void run() { |
691 |
|
try { |
692 |
|
lock.lock(); |
693 |
< |
threadAssertFalse(c.hasWaiters()); |
503 |
< |
threadAssertEquals(0, c.getWaitQueueLength()); |
693 |
> |
threadAssertTrue(lock.getWaitingThreads(c).isEmpty()); |
694 |
|
c.await(); |
695 |
|
lock.unlock(); |
696 |
|
} |
704 |
|
public void run() { |
705 |
|
try { |
706 |
|
lock.lock(); |
707 |
< |
threadAssertTrue(c.hasWaiters()); |
518 |
< |
threadAssertEquals(1, c.getWaitQueueLength()); |
707 |
> |
threadAssertFalse(lock.getWaitingThreads(c).isEmpty()); |
708 |
|
c.await(); |
709 |
|
lock.unlock(); |
710 |
|
} |
715 |
|
}); |
716 |
|
|
717 |
|
try { |
718 |
+ |
lock.lock(); |
719 |
+ |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
720 |
+ |
lock.unlock(); |
721 |
|
t1.start(); |
722 |
|
Thread.sleep(SHORT_DELAY_MS); |
723 |
|
t2.start(); |
724 |
|
Thread.sleep(SHORT_DELAY_MS); |
725 |
|
lock.lock(); |
726 |
< |
assertTrue(c.hasWaiters()); |
727 |
< |
assertEquals(2, c.getWaitQueueLength()); |
726 |
> |
assertTrue(lock.hasWaiters(c)); |
727 |
> |
assertTrue(lock.getWaitingThreads(c).contains(t1)); |
728 |
> |
assertTrue(lock.getWaitingThreads(c).contains(t2)); |
729 |
|
c.signalAll(); |
730 |
|
lock.unlock(); |
731 |
|
Thread.sleep(SHORT_DELAY_MS); |
732 |
|
lock.lock(); |
733 |
< |
assertFalse(c.hasWaiters()); |
734 |
< |
assertEquals(0, c.getWaitQueueLength()); |
733 |
> |
assertFalse(lock.hasWaiters(c)); |
734 |
> |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
735 |
|
lock.unlock(); |
736 |
|
t1.join(SHORT_DELAY_MS); |
737 |
|
t2.join(SHORT_DELAY_MS); |
743 |
|
} |
744 |
|
} |
745 |
|
|
746 |
+ |
|
747 |
+ |
|
748 |
|
/** |
749 |
|
* awaitUninterruptibly doesn't abort on interrupt |
750 |
|
*/ |