30 |
|
* ReentrantReadWriteLock, and Semaphore |
31 |
|
*/ |
32 |
|
static class Mutex extends AbstractQueuedSynchronizer { |
33 |
< |
public boolean isLocked() { return getState() == 1; } |
33 |
> |
public boolean isHeldExclusively() { return getState() == 1; } |
34 |
|
|
35 |
< |
public boolean tryAcquireExclusive(int acquires) { |
35 |
> |
public boolean tryAcquire(int acquires) { |
36 |
|
assertTrue(acquires == 1); |
37 |
|
return compareAndSetState(0, 1); |
38 |
|
} |
39 |
|
|
40 |
< |
public boolean tryReleaseExclusive(int releases) { |
40 |
> |
public boolean tryRelease(int releases) { |
41 |
> |
if (getState() == 0) throw new IllegalMonitorStateException(); |
42 |
|
setState(0); |
43 |
|
return true; |
44 |
|
} |
45 |
|
|
46 |
< |
public void checkConditionAccess(Thread thread) { |
46 |
< |
if (getState() == 0) throw new IllegalMonitorStateException(); |
47 |
< |
} |
48 |
< |
|
49 |
< |
public ConditionObject newCondition() { return new ConditionObject(); } |
46 |
> |
public AbstractQueuedSynchronizer.ConditionObject newCondition() { return new AbstractQueuedSynchronizer.ConditionObject(); } |
47 |
|
|
48 |
|
public void lock() { |
49 |
< |
acquireExclusiveUninterruptibly(1); |
49 |
> |
acquire(1); |
50 |
|
} |
51 |
|
|
52 |
|
} |
69 |
|
} |
70 |
|
|
71 |
|
/** |
72 |
< |
* A runnable calling acquireExclusiveInterruptibly |
72 |
> |
* A runnable calling acquireInterruptibly |
73 |
|
*/ |
74 |
|
class InterruptibleLockRunnable implements Runnable { |
75 |
|
final Mutex lock; |
76 |
|
InterruptibleLockRunnable(Mutex l) { lock = l; } |
77 |
|
public void run() { |
78 |
|
try { |
79 |
< |
lock.acquireExclusiveInterruptibly(1); |
79 |
> |
lock.acquireInterruptibly(1); |
80 |
|
} catch(InterruptedException success){} |
81 |
|
} |
82 |
|
} |
83 |
|
|
84 |
|
|
85 |
|
/** |
86 |
< |
* A runnable calling acquireExclusiveInterruptibly that expects to be |
86 |
> |
* A runnable calling acquireInterruptibly that expects to be |
87 |
|
* interrupted |
88 |
|
*/ |
89 |
|
class InterruptedLockRunnable implements Runnable { |
91 |
|
InterruptedLockRunnable(Mutex l) { lock = l; } |
92 |
|
public void run() { |
93 |
|
try { |
94 |
< |
lock.acquireExclusiveInterruptibly(1); |
94 |
> |
lock.acquireInterruptibly(1); |
95 |
|
threadShouldThrow(); |
96 |
|
} catch(InterruptedException success){} |
97 |
|
} |
98 |
|
} |
99 |
+ |
|
100 |
+ |
/** |
101 |
+ |
* isHeldExclusively is false upon construction |
102 |
+ |
*/ |
103 |
+ |
public void testIsHeldExclusively() { |
104 |
+ |
Mutex rl = new Mutex(); |
105 |
+ |
assertFalse(rl.isHeldExclusively()); |
106 |
+ |
} |
107 |
|
|
108 |
|
/** |
109 |
< |
* acquireExclusiveUninterruptiblying an releaseExclusiveed lock succeeds |
109 |
> |
* acquiring released lock succeeds |
110 |
|
*/ |
111 |
< |
public void testAcquireExclusiveUninterruptibly() { |
111 |
> |
public void testAcquire() { |
112 |
|
Mutex rl = new Mutex(); |
113 |
< |
rl.acquireExclusiveUninterruptibly(1); |
114 |
< |
assertTrue(rl.isLocked()); |
115 |
< |
rl.releaseExclusive(1); |
113 |
> |
rl.acquire(1); |
114 |
> |
assertTrue(rl.isHeldExclusively()); |
115 |
> |
rl.release(1); |
116 |
|
} |
117 |
|
|
118 |
|
/** |
119 |
< |
* tryAcquireExclusive on an releaseExclusiveed lock succeeds |
119 |
> |
* tryAcquire on an released lock succeeds |
120 |
|
*/ |
121 |
< |
public void testTryAcquireExclusive() { |
121 |
> |
public void testTryAcquire() { |
122 |
|
Mutex rl = new Mutex(); |
123 |
< |
assertTrue(rl.tryAcquireExclusive(1)); |
124 |
< |
assertTrue(rl.isLocked()); |
125 |
< |
rl.releaseExclusive(1); |
123 |
> |
assertTrue(rl.tryAcquire(1)); |
124 |
> |
assertTrue(rl.isHeldExclusively()); |
125 |
> |
rl.release(1); |
126 |
|
} |
127 |
|
|
128 |
|
/** |
134 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
135 |
|
try { |
136 |
|
assertFalse(lock.hasQueuedThreads()); |
137 |
< |
lock.acquireExclusiveUninterruptibly(1); |
137 |
> |
lock.acquire(1); |
138 |
|
t1.start(); |
139 |
|
Thread.sleep(SHORT_DELAY_MS); |
140 |
|
assertTrue(lock.hasQueuedThreads()); |
144 |
|
t1.interrupt(); |
145 |
|
Thread.sleep(SHORT_DELAY_MS); |
146 |
|
assertTrue(lock.hasQueuedThreads()); |
147 |
< |
lock.releaseExclusive(1); |
147 |
> |
lock.release(1); |
148 |
|
Thread.sleep(SHORT_DELAY_MS); |
149 |
|
assertFalse(lock.hasQueuedThreads()); |
150 |
|
t1.join(); |
176 |
|
try { |
177 |
|
assertFalse(lock.isQueued(t1)); |
178 |
|
assertFalse(lock.isQueued(t2)); |
179 |
< |
lock.acquireExclusiveUninterruptibly(1); |
179 |
> |
lock.acquire(1); |
180 |
|
t1.start(); |
181 |
|
Thread.sleep(SHORT_DELAY_MS); |
182 |
|
assertTrue(lock.isQueued(t1)); |
188 |
|
Thread.sleep(SHORT_DELAY_MS); |
189 |
|
assertFalse(lock.isQueued(t1)); |
190 |
|
assertTrue(lock.isQueued(t2)); |
191 |
< |
lock.releaseExclusive(1); |
191 |
> |
lock.release(1); |
192 |
|
Thread.sleep(SHORT_DELAY_MS); |
193 |
|
assertFalse(lock.isQueued(t1)); |
194 |
|
assertFalse(lock.isQueued(t2)); |
208 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
209 |
|
try { |
210 |
|
assertNull(lock.getFirstQueuedThread()); |
211 |
< |
lock.acquireExclusiveUninterruptibly(1); |
211 |
> |
lock.acquire(1); |
212 |
|
t1.start(); |
213 |
|
Thread.sleep(SHORT_DELAY_MS); |
214 |
|
assertEquals(t1, lock.getFirstQueuedThread()); |
218 |
|
t1.interrupt(); |
219 |
|
Thread.sleep(SHORT_DELAY_MS); |
220 |
|
assertEquals(t2, lock.getFirstQueuedThread()); |
221 |
< |
lock.releaseExclusive(1); |
221 |
> |
lock.release(1); |
222 |
|
Thread.sleep(SHORT_DELAY_MS); |
223 |
|
assertNull(lock.getFirstQueuedThread()); |
224 |
|
t1.join(); |
238 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
239 |
|
try { |
240 |
|
assertFalse(lock.hasContended()); |
241 |
< |
lock.acquireExclusiveUninterruptibly(1); |
241 |
> |
lock.acquire(1); |
242 |
|
t1.start(); |
243 |
|
Thread.sleep(SHORT_DELAY_MS); |
244 |
|
assertTrue(lock.hasContended()); |
248 |
|
t1.interrupt(); |
249 |
|
Thread.sleep(SHORT_DELAY_MS); |
250 |
|
assertTrue(lock.hasContended()); |
251 |
< |
lock.releaseExclusive(1); |
251 |
> |
lock.release(1); |
252 |
|
Thread.sleep(SHORT_DELAY_MS); |
253 |
|
assertTrue(lock.hasContended()); |
254 |
|
t1.join(); |
259 |
|
} |
260 |
|
|
261 |
|
/** |
262 |
< |
* timed tryAcquireExclusive is interruptible. |
262 |
> |
* tryAcquireNanos is interruptible. |
263 |
|
*/ |
264 |
|
public void testInterruptedException2() { |
265 |
|
final Mutex lock = new Mutex(); |
266 |
< |
lock.acquireExclusiveUninterruptibly(1); |
266 |
> |
lock.acquire(1); |
267 |
|
Thread t = new Thread(new Runnable() { |
268 |
|
public void run() { |
269 |
|
try { |
270 |
< |
lock.acquireExclusiveNanos(1, MEDIUM_DELAY_MS * 1000 * 1000); |
270 |
> |
lock.tryAcquireNanos(1, MEDIUM_DELAY_MS * 1000 * 1000); |
271 |
|
threadShouldThrow(); |
272 |
|
} catch(InterruptedException success){} |
273 |
|
} |
282 |
|
|
283 |
|
|
284 |
|
/** |
285 |
< |
* TryAcquireExclusive on a locked lock fails |
285 |
> |
* TryAcquire on a locked lock fails |
286 |
|
*/ |
287 |
< |
public void testTryAcquireExclusiveWhenLocked() { |
287 |
> |
public void testTryAcquireWhenLocked() { |
288 |
|
final Mutex lock = new Mutex(); |
289 |
< |
lock.acquireExclusiveUninterruptibly(1); |
289 |
> |
lock.acquire(1); |
290 |
|
Thread t = new Thread(new Runnable() { |
291 |
|
public void run() { |
292 |
< |
threadAssertFalse(lock.tryAcquireExclusive(1)); |
292 |
> |
threadAssertFalse(lock.tryAcquire(1)); |
293 |
|
} |
294 |
|
}); |
295 |
|
try { |
296 |
|
t.start(); |
297 |
|
t.join(); |
298 |
< |
lock.releaseExclusive(1); |
298 |
> |
lock.release(1); |
299 |
|
} catch(Exception e){ |
300 |
|
unexpectedException(); |
301 |
|
} |
302 |
|
} |
303 |
|
|
304 |
|
/** |
305 |
< |
* acquireExclusiveTimed on a locked lock times out |
305 |
> |
* tryAcquireNanos on a locked lock times out |
306 |
|
*/ |
307 |
< |
public void testacquireExclusiveTimed_Timeout() { |
307 |
> |
public void testAcquireNanos_Timeout() { |
308 |
|
final Mutex lock = new Mutex(); |
309 |
< |
lock.acquireExclusiveUninterruptibly(1); |
309 |
> |
lock.acquire(1); |
310 |
|
Thread t = new Thread(new Runnable() { |
311 |
|
public void run() { |
312 |
|
try { |
313 |
< |
threadAssertFalse(lock.acquireExclusiveNanos(1, 1000 * 1000)); |
313 |
> |
threadAssertFalse(lock.tryAcquireNanos(1, 1000 * 1000)); |
314 |
|
} catch (Exception ex) { |
315 |
|
threadUnexpectedException(); |
316 |
|
} |
319 |
|
try { |
320 |
|
t.start(); |
321 |
|
t.join(); |
322 |
< |
lock.releaseExclusive(1); |
322 |
> |
lock.release(1); |
323 |
|
} catch(Exception e){ |
324 |
|
unexpectedException(); |
325 |
|
} |
327 |
|
|
328 |
|
|
329 |
|
/** |
330 |
< |
* isLocked is true when locked and false when not |
330 |
> |
* getState is true when acquired and false when not |
331 |
|
*/ |
332 |
< |
public void testIsLocked() { |
332 |
> |
public void testGetState() { |
333 |
|
final Mutex lock = new Mutex(); |
334 |
< |
lock.acquireExclusiveUninterruptibly(1); |
335 |
< |
assertTrue(lock.isLocked()); |
336 |
< |
lock.releaseExclusive(1); |
337 |
< |
assertFalse(lock.isLocked()); |
334 |
> |
lock.acquire(1); |
335 |
> |
assertTrue(lock.isHeldExclusively()); |
336 |
> |
lock.release(1); |
337 |
> |
assertFalse(lock.isHeldExclusively()); |
338 |
|
Thread t = new Thread(new Runnable() { |
339 |
|
public void run() { |
340 |
< |
lock.acquireExclusiveUninterruptibly(1); |
340 |
> |
lock.acquire(1); |
341 |
|
try { |
342 |
|
Thread.sleep(SMALL_DELAY_MS); |
343 |
|
} |
344 |
|
catch(Exception e) { |
345 |
|
threadUnexpectedException(); |
346 |
|
} |
347 |
< |
lock.releaseExclusive(1); |
347 |
> |
lock.release(1); |
348 |
|
} |
349 |
|
}); |
350 |
|
try { |
351 |
|
t.start(); |
352 |
|
Thread.sleep(SHORT_DELAY_MS); |
353 |
< |
assertTrue(lock.isLocked()); |
353 |
> |
assertTrue(lock.isHeldExclusively()); |
354 |
|
t.join(); |
355 |
< |
assertFalse(lock.isLocked()); |
355 |
> |
assertFalse(lock.isHeldExclusively()); |
356 |
|
} catch(Exception e){ |
357 |
|
unexpectedException(); |
358 |
|
} |
360 |
|
|
361 |
|
|
362 |
|
/** |
363 |
< |
* acquireExclusiveInterruptibly is interruptible. |
363 |
> |
* acquireInterruptibly is interruptible. |
364 |
|
*/ |
365 |
|
public void testAcquireInterruptibly1() { |
366 |
|
final Mutex lock = new Mutex(); |
367 |
< |
lock.acquireExclusiveUninterruptibly(1); |
367 |
> |
lock.acquire(1); |
368 |
|
Thread t = new Thread(new InterruptedLockRunnable(lock)); |
369 |
|
try { |
370 |
|
t.start(); |
371 |
|
t.interrupt(); |
372 |
< |
lock.releaseExclusive(1); |
372 |
> |
lock.release(1); |
373 |
|
t.join(); |
374 |
|
} catch(Exception e){ |
375 |
|
unexpectedException(); |
377 |
|
} |
378 |
|
|
379 |
|
/** |
380 |
< |
* acquireExclusiveInterruptibly succeeds when released, else is interruptible |
380 |
> |
* acquireInterruptibly succeeds when released, else is interruptible |
381 |
|
*/ |
382 |
|
public void testAcquireInterruptibly2() { |
383 |
|
final Mutex lock = new Mutex(); |
384 |
|
try { |
385 |
< |
lock.acquireExclusiveInterruptibly(1); |
385 |
> |
lock.acquireInterruptibly(1); |
386 |
|
} catch(Exception e) { |
387 |
|
unexpectedException(); |
388 |
|
} |
390 |
|
try { |
391 |
|
t.start(); |
392 |
|
t.interrupt(); |
393 |
< |
assertTrue(lock.isLocked()); |
393 |
> |
assertTrue(lock.isHeldExclusively()); |
394 |
|
t.join(); |
395 |
|
} catch(Exception e){ |
396 |
|
unexpectedException(); |
413 |
|
*/ |
414 |
|
public void testAwait_IllegalMonitor() { |
415 |
|
final Mutex lock = new Mutex(); |
416 |
< |
final Condition c = lock.newCondition(); |
416 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition(); |
417 |
|
try { |
418 |
|
c.await(); |
419 |
|
shouldThrow(); |
430 |
|
*/ |
431 |
|
public void testSignal_IllegalMonitor() { |
432 |
|
final Mutex lock = new Mutex(); |
433 |
< |
final Condition c = lock.newCondition(); |
433 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition(); |
434 |
|
try { |
435 |
|
c.signal(); |
436 |
|
shouldThrow(); |
447 |
|
*/ |
448 |
|
public void testAwaitNanos_Timeout() { |
449 |
|
final Mutex lock = new Mutex(); |
450 |
< |
final Condition c = lock.newCondition(); |
450 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition(); |
451 |
|
try { |
452 |
< |
lock.acquireExclusiveUninterruptibly(1); |
452 |
> |
lock.acquire(1); |
453 |
|
long t = c.awaitNanos(100); |
454 |
|
assertTrue(t <= 0); |
455 |
< |
lock.releaseExclusive(1); |
455 |
> |
lock.release(1); |
456 |
|
} |
457 |
|
catch (Exception ex) { |
458 |
|
unexpectedException(); |
464 |
|
*/ |
465 |
|
public void testAwait_Timeout() { |
466 |
|
final Mutex lock = new Mutex(); |
467 |
< |
final Condition c = lock.newCondition(); |
467 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition(); |
468 |
|
try { |
469 |
< |
lock.acquireExclusiveUninterruptibly(1); |
469 |
> |
lock.acquire(1); |
470 |
|
assertFalse(c.await(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
471 |
< |
lock.releaseExclusive(1); |
471 |
> |
lock.release(1); |
472 |
|
} |
473 |
|
catch (Exception ex) { |
474 |
|
unexpectedException(); |
480 |
|
*/ |
481 |
|
public void testAwaitUntil_Timeout() { |
482 |
|
final Mutex lock = new Mutex(); |
483 |
< |
final Condition c = lock.newCondition(); |
483 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition(); |
484 |
|
try { |
485 |
< |
lock.acquireExclusiveUninterruptibly(1); |
485 |
> |
lock.acquire(1); |
486 |
|
java.util.Date d = new java.util.Date(); |
487 |
|
assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10))); |
488 |
< |
lock.releaseExclusive(1); |
488 |
> |
lock.release(1); |
489 |
|
} |
490 |
|
catch (Exception ex) { |
491 |
|
unexpectedException(); |
497 |
|
*/ |
498 |
|
public void testAwait() { |
499 |
|
final Mutex lock = new Mutex(); |
500 |
< |
final Condition c = lock.newCondition(); |
500 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition(); |
501 |
|
Thread t = new Thread(new Runnable() { |
502 |
|
public void run() { |
503 |
|
try { |
504 |
< |
lock.acquireExclusiveUninterruptibly(1); |
504 |
> |
lock.acquire(1); |
505 |
> |
c.await(); |
506 |
> |
lock.release(1); |
507 |
> |
} |
508 |
> |
catch(InterruptedException e) { |
509 |
> |
threadUnexpectedException(); |
510 |
> |
} |
511 |
> |
} |
512 |
> |
}); |
513 |
> |
|
514 |
> |
try { |
515 |
> |
t.start(); |
516 |
> |
Thread.sleep(SHORT_DELAY_MS); |
517 |
> |
lock.acquire(1); |
518 |
> |
c.signal(); |
519 |
> |
lock.release(1); |
520 |
> |
t.join(SHORT_DELAY_MS); |
521 |
> |
assertFalse(t.isAlive()); |
522 |
> |
} |
523 |
> |
catch (Exception ex) { |
524 |
> |
unexpectedException(); |
525 |
> |
} |
526 |
> |
} |
527 |
> |
|
528 |
> |
|
529 |
> |
|
530 |
> |
/** |
531 |
> |
* hasWaiters throws NPE if null |
532 |
> |
*/ |
533 |
> |
public void testHasWaitersNPE() { |
534 |
> |
final Mutex lock = new Mutex(); |
535 |
> |
try { |
536 |
> |
lock.hasWaiters(null); |
537 |
> |
shouldThrow(); |
538 |
> |
} catch (NullPointerException success) { |
539 |
> |
} catch (Exception ex) { |
540 |
> |
unexpectedException(); |
541 |
> |
} |
542 |
> |
} |
543 |
> |
|
544 |
> |
/** |
545 |
> |
* getWaitQueueLength throws NPE if null |
546 |
> |
*/ |
547 |
> |
public void testGetWaitQueueLengthNPE() { |
548 |
> |
final Mutex lock = new Mutex(); |
549 |
> |
try { |
550 |
> |
lock.getWaitQueueLength(null); |
551 |
> |
shouldThrow(); |
552 |
> |
} catch (NullPointerException success) { |
553 |
> |
} catch (Exception ex) { |
554 |
> |
unexpectedException(); |
555 |
> |
} |
556 |
> |
} |
557 |
> |
|
558 |
> |
|
559 |
> |
/** |
560 |
> |
* getWaitingThreads throws NPE if null |
561 |
> |
*/ |
562 |
> |
public void testGetWaitingThreadsNPE() { |
563 |
> |
final Mutex lock = new Mutex(); |
564 |
> |
try { |
565 |
> |
lock.getWaitingThreads(null); |
566 |
> |
shouldThrow(); |
567 |
> |
} catch (NullPointerException success) { |
568 |
> |
} catch (Exception ex) { |
569 |
> |
unexpectedException(); |
570 |
> |
} |
571 |
> |
} |
572 |
> |
|
573 |
> |
|
574 |
> |
/** |
575 |
> |
* hasWaiters throws IAE if not owned |
576 |
> |
*/ |
577 |
> |
public void testHasWaitersIAE() { |
578 |
> |
final Mutex lock = new Mutex(); |
579 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = (lock.newCondition()); |
580 |
> |
final Mutex lock2 = new Mutex(); |
581 |
> |
try { |
582 |
> |
lock2.hasWaiters(c); |
583 |
> |
shouldThrow(); |
584 |
> |
} catch (IllegalArgumentException success) { |
585 |
> |
} catch (Exception ex) { |
586 |
> |
unexpectedException(); |
587 |
> |
} |
588 |
> |
} |
589 |
> |
|
590 |
> |
/** |
591 |
> |
* hasWaiters throws IMSE if not locked |
592 |
> |
*/ |
593 |
> |
public void testHasWaitersIMSE() { |
594 |
> |
final Mutex lock = new Mutex(); |
595 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = (lock.newCondition()); |
596 |
> |
try { |
597 |
> |
lock.hasWaiters(c); |
598 |
> |
shouldThrow(); |
599 |
> |
} catch (IllegalMonitorStateException success) { |
600 |
> |
} catch (Exception ex) { |
601 |
> |
unexpectedException(); |
602 |
> |
} |
603 |
> |
} |
604 |
> |
|
605 |
> |
|
606 |
> |
/** |
607 |
> |
* getWaitQueueLength throws IAE if not owned |
608 |
> |
*/ |
609 |
> |
public void testGetWaitQueueLengthIAE() { |
610 |
> |
final Mutex lock = new Mutex(); |
611 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = (lock.newCondition()); |
612 |
> |
final Mutex lock2 = new Mutex(); |
613 |
> |
try { |
614 |
> |
lock2.getWaitQueueLength(c); |
615 |
> |
shouldThrow(); |
616 |
> |
} catch (IllegalArgumentException success) { |
617 |
> |
} catch (Exception ex) { |
618 |
> |
unexpectedException(); |
619 |
> |
} |
620 |
> |
} |
621 |
> |
|
622 |
> |
/** |
623 |
> |
* getWaitQueueLength throws IMSE if not locked |
624 |
> |
*/ |
625 |
> |
public void testGetWaitQueueLengthIMSE() { |
626 |
> |
final Mutex lock = new Mutex(); |
627 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = (lock.newCondition()); |
628 |
> |
try { |
629 |
> |
lock.getWaitQueueLength(c); |
630 |
> |
shouldThrow(); |
631 |
> |
} catch (IllegalMonitorStateException success) { |
632 |
> |
} catch (Exception ex) { |
633 |
> |
unexpectedException(); |
634 |
> |
} |
635 |
> |
} |
636 |
> |
|
637 |
> |
|
638 |
> |
/** |
639 |
> |
* getWaitingThreads throws IAE if not owned |
640 |
> |
*/ |
641 |
> |
public void testGetWaitingThreadsIAE() { |
642 |
> |
final Mutex lock = new Mutex(); |
643 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = (lock.newCondition()); |
644 |
> |
final Mutex lock2 = new Mutex(); |
645 |
> |
try { |
646 |
> |
lock2.getWaitingThreads(c); |
647 |
> |
shouldThrow(); |
648 |
> |
} catch (IllegalArgumentException success) { |
649 |
> |
} catch (Exception ex) { |
650 |
> |
unexpectedException(); |
651 |
> |
} |
652 |
> |
} |
653 |
> |
|
654 |
> |
/** |
655 |
> |
* getWaitingThreads throws IMSE if not locked |
656 |
> |
*/ |
657 |
> |
public void testGetWaitingThreadsIMSE() { |
658 |
> |
final Mutex lock = new Mutex(); |
659 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = (lock.newCondition()); |
660 |
> |
try { |
661 |
> |
lock.getWaitingThreads(c); |
662 |
> |
shouldThrow(); |
663 |
> |
} catch (IllegalMonitorStateException success) { |
664 |
> |
} catch (Exception ex) { |
665 |
> |
unexpectedException(); |
666 |
> |
} |
667 |
> |
} |
668 |
> |
|
669 |
> |
|
670 |
> |
|
671 |
> |
/** |
672 |
> |
* hasWaiters returns true when a thread is waiting, else false |
673 |
> |
*/ |
674 |
> |
public void testHasWaiters() { |
675 |
> |
final Mutex lock = new Mutex(); |
676 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition(); |
677 |
> |
Thread t = new Thread(new Runnable() { |
678 |
> |
public void run() { |
679 |
> |
try { |
680 |
> |
lock.acquire(1); |
681 |
> |
threadAssertFalse(lock.hasWaiters(c)); |
682 |
> |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
683 |
> |
c.await(); |
684 |
> |
lock.release(1); |
685 |
> |
} |
686 |
> |
catch(InterruptedException e) { |
687 |
> |
threadUnexpectedException(); |
688 |
> |
} |
689 |
> |
} |
690 |
> |
}); |
691 |
> |
|
692 |
> |
try { |
693 |
> |
t.start(); |
694 |
> |
Thread.sleep(SHORT_DELAY_MS); |
695 |
> |
lock.acquire(1); |
696 |
> |
assertTrue(lock.hasWaiters(c)); |
697 |
> |
assertEquals(1, lock.getWaitQueueLength(c)); |
698 |
> |
c.signal(); |
699 |
> |
lock.release(1); |
700 |
> |
Thread.sleep(SHORT_DELAY_MS); |
701 |
> |
lock.acquire(1); |
702 |
> |
assertFalse(lock.hasWaiters(c)); |
703 |
> |
assertEquals(0, lock.getWaitQueueLength(c)); |
704 |
> |
lock.release(1); |
705 |
> |
t.join(SHORT_DELAY_MS); |
706 |
> |
assertFalse(t.isAlive()); |
707 |
> |
} |
708 |
> |
catch (Exception ex) { |
709 |
> |
unexpectedException(); |
710 |
> |
} |
711 |
> |
} |
712 |
> |
|
713 |
> |
/** |
714 |
> |
* getWaitQueueLength returns number of waiting threads |
715 |
> |
*/ |
716 |
> |
public void testGetWaitQueueLength() { |
717 |
> |
final Mutex lock = new Mutex(); |
718 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition(); |
719 |
> |
Thread t1 = new Thread(new Runnable() { |
720 |
> |
public void run() { |
721 |
> |
try { |
722 |
> |
lock.acquire(1); |
723 |
> |
threadAssertFalse(lock.hasWaiters(c)); |
724 |
> |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
725 |
> |
c.await(); |
726 |
> |
lock.release(1); |
727 |
> |
} |
728 |
> |
catch(InterruptedException e) { |
729 |
> |
threadUnexpectedException(); |
730 |
> |
} |
731 |
> |
} |
732 |
> |
}); |
733 |
> |
|
734 |
> |
Thread t2 = new Thread(new Runnable() { |
735 |
> |
public void run() { |
736 |
> |
try { |
737 |
> |
lock.acquire(1); |
738 |
> |
threadAssertTrue(lock.hasWaiters(c)); |
739 |
> |
threadAssertEquals(1, lock.getWaitQueueLength(c)); |
740 |
> |
c.await(); |
741 |
> |
lock.release(1); |
742 |
> |
} |
743 |
> |
catch(InterruptedException e) { |
744 |
> |
threadUnexpectedException(); |
745 |
> |
} |
746 |
> |
} |
747 |
> |
}); |
748 |
> |
|
749 |
> |
try { |
750 |
> |
t1.start(); |
751 |
> |
Thread.sleep(SHORT_DELAY_MS); |
752 |
> |
t2.start(); |
753 |
> |
Thread.sleep(SHORT_DELAY_MS); |
754 |
> |
lock.acquire(1); |
755 |
> |
assertTrue(lock.hasWaiters(c)); |
756 |
> |
assertEquals(2, lock.getWaitQueueLength(c)); |
757 |
> |
c.signalAll(); |
758 |
> |
lock.release(1); |
759 |
> |
Thread.sleep(SHORT_DELAY_MS); |
760 |
> |
lock.acquire(1); |
761 |
> |
assertFalse(lock.hasWaiters(c)); |
762 |
> |
assertEquals(0, lock.getWaitQueueLength(c)); |
763 |
> |
lock.release(1); |
764 |
> |
t1.join(SHORT_DELAY_MS); |
765 |
> |
t2.join(SHORT_DELAY_MS); |
766 |
> |
assertFalse(t1.isAlive()); |
767 |
> |
assertFalse(t2.isAlive()); |
768 |
> |
} |
769 |
> |
catch (Exception ex) { |
770 |
> |
unexpectedException(); |
771 |
> |
} |
772 |
> |
} |
773 |
> |
|
774 |
> |
/** |
775 |
> |
* getWaitingThreads returns only and all waiting threads |
776 |
> |
*/ |
777 |
> |
public void testGetWaitingThreads() { |
778 |
> |
final Mutex lock = new Mutex(); |
779 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition(); |
780 |
> |
Thread t1 = new Thread(new Runnable() { |
781 |
> |
public void run() { |
782 |
> |
try { |
783 |
> |
lock.acquire(1); |
784 |
> |
threadAssertTrue(lock.getWaitingThreads(c).isEmpty()); |
785 |
|
c.await(); |
786 |
< |
lock.releaseExclusive(1); |
786 |
> |
lock.release(1); |
787 |
> |
} |
788 |
> |
catch(InterruptedException e) { |
789 |
> |
threadUnexpectedException(); |
790 |
> |
} |
791 |
> |
} |
792 |
> |
}); |
793 |
> |
|
794 |
> |
Thread t2 = new Thread(new Runnable() { |
795 |
> |
public void run() { |
796 |
> |
try { |
797 |
> |
lock.acquire(1); |
798 |
> |
threadAssertFalse(lock.getWaitingThreads(c).isEmpty()); |
799 |
> |
c.await(); |
800 |
> |
lock.release(1); |
801 |
|
} |
802 |
|
catch(InterruptedException e) { |
803 |
|
threadUnexpectedException(); |
806 |
|
}); |
807 |
|
|
808 |
|
try { |
809 |
+ |
lock.acquire(1); |
810 |
+ |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
811 |
+ |
lock.release(1); |
812 |
+ |
t1.start(); |
813 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
814 |
+ |
t2.start(); |
815 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
816 |
+ |
lock.acquire(1); |
817 |
+ |
assertTrue(lock.hasWaiters(c)); |
818 |
+ |
assertTrue(lock.getWaitingThreads(c).contains(t1)); |
819 |
+ |
assertTrue(lock.getWaitingThreads(c).contains(t2)); |
820 |
+ |
c.signalAll(); |
821 |
+ |
lock.release(1); |
822 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
823 |
+ |
lock.acquire(1); |
824 |
+ |
assertFalse(lock.hasWaiters(c)); |
825 |
+ |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
826 |
+ |
lock.release(1); |
827 |
+ |
t1.join(SHORT_DELAY_MS); |
828 |
+ |
t2.join(SHORT_DELAY_MS); |
829 |
+ |
assertFalse(t1.isAlive()); |
830 |
+ |
assertFalse(t2.isAlive()); |
831 |
+ |
} |
832 |
+ |
catch (Exception ex) { |
833 |
+ |
unexpectedException(); |
834 |
+ |
} |
835 |
+ |
} |
836 |
+ |
|
837 |
+ |
|
838 |
+ |
|
839 |
+ |
/** |
840 |
+ |
* awaitUninterruptibly doesn't abort on interrupt |
841 |
+ |
*/ |
842 |
+ |
public void testAwaitUninterruptibly() { |
843 |
+ |
final Mutex lock = new Mutex(); |
844 |
+ |
final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition(); |
845 |
+ |
Thread t = new Thread(new Runnable() { |
846 |
+ |
public void run() { |
847 |
+ |
lock.acquire(1); |
848 |
+ |
c.awaitUninterruptibly(); |
849 |
+ |
lock.release(1); |
850 |
+ |
} |
851 |
+ |
}); |
852 |
+ |
|
853 |
+ |
try { |
854 |
|
t.start(); |
855 |
|
Thread.sleep(SHORT_DELAY_MS); |
856 |
< |
lock.acquireExclusiveUninterruptibly(1); |
856 |
> |
t.interrupt(); |
857 |
> |
lock.acquire(1); |
858 |
|
c.signal(); |
859 |
< |
lock.releaseExclusive(1); |
859 |
> |
lock.release(1); |
860 |
> |
assert(t.isInterrupted()); |
861 |
|
t.join(SHORT_DELAY_MS); |
862 |
|
assertFalse(t.isAlive()); |
863 |
|
} |
866 |
|
} |
867 |
|
} |
868 |
|
|
869 |
+ |
/** |
870 |
+ |
* await is interruptible |
871 |
+ |
*/ |
872 |
+ |
public void testAwait_Interrupt() { |
873 |
+ |
final Mutex lock = new Mutex(); |
874 |
+ |
final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition(); |
875 |
+ |
Thread t = new Thread(new Runnable() { |
876 |
+ |
public void run() { |
877 |
+ |
try { |
878 |
+ |
lock.acquire(1); |
879 |
+ |
c.await(); |
880 |
+ |
lock.release(1); |
881 |
+ |
threadShouldThrow(); |
882 |
+ |
} |
883 |
+ |
catch(InterruptedException success) { |
884 |
+ |
} |
885 |
+ |
} |
886 |
+ |
}); |
887 |
+ |
|
888 |
+ |
try { |
889 |
+ |
t.start(); |
890 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
891 |
+ |
t.interrupt(); |
892 |
+ |
t.join(SHORT_DELAY_MS); |
893 |
+ |
assertFalse(t.isAlive()); |
894 |
+ |
} |
895 |
+ |
catch (Exception ex) { |
896 |
+ |
unexpectedException(); |
897 |
+ |
} |
898 |
+ |
} |
899 |
|
|
900 |
|
/** |
901 |
< |
* Latch isSignalled initially returns false, then true after release |
901 |
> |
* awaitNanos is interruptible |
902 |
|
*/ |
903 |
< |
public void testLatchIsSignalled() { |
903 |
> |
public void testAwaitNanos_Interrupt() { |
904 |
> |
final Mutex lock = new Mutex(); |
905 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition(); |
906 |
> |
Thread t = new Thread(new Runnable() { |
907 |
> |
public void run() { |
908 |
> |
try { |
909 |
> |
lock.acquire(1); |
910 |
> |
c.awaitNanos(1000 * 1000 * 1000); // 1 sec |
911 |
> |
lock.release(1); |
912 |
> |
threadShouldThrow(); |
913 |
> |
} |
914 |
> |
catch(InterruptedException success) { |
915 |
> |
} |
916 |
> |
} |
917 |
> |
}); |
918 |
> |
|
919 |
> |
try { |
920 |
> |
t.start(); |
921 |
> |
Thread.sleep(SHORT_DELAY_MS); |
922 |
> |
t.interrupt(); |
923 |
> |
t.join(SHORT_DELAY_MS); |
924 |
> |
assertFalse(t.isAlive()); |
925 |
> |
} |
926 |
> |
catch (Exception ex) { |
927 |
> |
unexpectedException(); |
928 |
> |
} |
929 |
> |
} |
930 |
> |
|
931 |
> |
/** |
932 |
> |
* awaitUntil is interruptible |
933 |
> |
*/ |
934 |
> |
public void testAwaitUntil_Interrupt() { |
935 |
> |
final Mutex lock = new Mutex(); |
936 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition(); |
937 |
> |
Thread t = new Thread(new Runnable() { |
938 |
> |
public void run() { |
939 |
> |
try { |
940 |
> |
lock.acquire(1); |
941 |
> |
java.util.Date d = new java.util.Date(); |
942 |
> |
c.awaitUntil(new java.util.Date(d.getTime() + 10000)); |
943 |
> |
lock.release(1); |
944 |
> |
threadShouldThrow(); |
945 |
> |
} |
946 |
> |
catch(InterruptedException success) { |
947 |
> |
} |
948 |
> |
} |
949 |
> |
}); |
950 |
> |
|
951 |
> |
try { |
952 |
> |
t.start(); |
953 |
> |
Thread.sleep(SHORT_DELAY_MS); |
954 |
> |
t.interrupt(); |
955 |
> |
t.join(SHORT_DELAY_MS); |
956 |
> |
assertFalse(t.isAlive()); |
957 |
> |
} |
958 |
> |
catch (Exception ex) { |
959 |
> |
unexpectedException(); |
960 |
> |
} |
961 |
> |
} |
962 |
> |
|
963 |
> |
/** |
964 |
> |
* signalAll wakes up all threads |
965 |
> |
*/ |
966 |
> |
public void testSignalAll() { |
967 |
> |
final Mutex lock = new Mutex(); |
968 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = lock.newCondition(); |
969 |
> |
Thread t1 = new Thread(new Runnable() { |
970 |
> |
public void run() { |
971 |
> |
try { |
972 |
> |
lock.acquire(1); |
973 |
> |
c.await(); |
974 |
> |
lock.release(1); |
975 |
> |
} |
976 |
> |
catch(InterruptedException e) { |
977 |
> |
threadUnexpectedException(); |
978 |
> |
} |
979 |
> |
} |
980 |
> |
}); |
981 |
> |
|
982 |
> |
Thread t2 = new Thread(new Runnable() { |
983 |
> |
public void run() { |
984 |
> |
try { |
985 |
> |
lock.acquire(1); |
986 |
> |
c.await(); |
987 |
> |
lock.release(1); |
988 |
> |
} |
989 |
> |
catch(InterruptedException e) { |
990 |
> |
threadUnexpectedException(); |
991 |
> |
} |
992 |
> |
} |
993 |
> |
}); |
994 |
> |
|
995 |
> |
try { |
996 |
> |
t1.start(); |
997 |
> |
t2.start(); |
998 |
> |
Thread.sleep(SHORT_DELAY_MS); |
999 |
> |
lock.acquire(1); |
1000 |
> |
c.signalAll(); |
1001 |
> |
lock.release(1); |
1002 |
> |
t1.join(SHORT_DELAY_MS); |
1003 |
> |
t2.join(SHORT_DELAY_MS); |
1004 |
> |
assertFalse(t1.isAlive()); |
1005 |
> |
assertFalse(t2.isAlive()); |
1006 |
> |
} |
1007 |
> |
catch (Exception ex) { |
1008 |
> |
unexpectedException(); |
1009 |
> |
} |
1010 |
> |
} |
1011 |
> |
|
1012 |
> |
|
1013 |
> |
/** |
1014 |
> |
* toString indicates current state |
1015 |
> |
*/ |
1016 |
> |
public void testToString() { |
1017 |
> |
Mutex lock = new Mutex(); |
1018 |
> |
String us = lock.toString(); |
1019 |
> |
assertTrue(us.indexOf("State = 0") >= 0); |
1020 |
> |
lock.acquire(1); |
1021 |
> |
String ls = lock.toString(); |
1022 |
> |
assertTrue(ls.indexOf("State = 1") >= 0); |
1023 |
> |
} |
1024 |
> |
|
1025 |
> |
/** |
1026 |
> |
* A serialized AQS deserializes with current state |
1027 |
> |
*/ |
1028 |
> |
public void testSerialization() { |
1029 |
> |
Mutex l = new Mutex(); |
1030 |
> |
l.acquire(1); |
1031 |
> |
assertTrue(l.isHeldExclusively()); |
1032 |
> |
|
1033 |
> |
try { |
1034 |
> |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
1035 |
> |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
1036 |
> |
out.writeObject(l); |
1037 |
> |
out.close(); |
1038 |
> |
|
1039 |
> |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
1040 |
> |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
1041 |
> |
Mutex r = (Mutex) in.readObject(); |
1042 |
> |
assertTrue(r.isHeldExclusively()); |
1043 |
> |
} catch(Exception e){ |
1044 |
> |
e.printStackTrace(); |
1045 |
> |
unexpectedException(); |
1046 |
> |
} |
1047 |
> |
} |
1048 |
> |
|
1049 |
> |
|
1050 |
> |
/** |
1051 |
> |
* tryReleaseShared setting state changes getState |
1052 |
> |
*/ |
1053 |
> |
public void testGetStateWithReleaseShared() { |
1054 |
|
final BooleanLatch l = new BooleanLatch(); |
1055 |
|
assertFalse(l.isSignalled()); |
1056 |
|
l.releaseShared(0); |
1060 |
|
/** |
1061 |
|
* release and has no effect when already signalled |
1062 |
|
*/ |
1063 |
< |
public void testLatchBoolean() { |
1063 |
> |
public void testReleaseShared() { |
1064 |
|
final BooleanLatch l = new BooleanLatch(); |
1065 |
|
assertFalse(l.isSignalled()); |
1066 |
|
l.releaseShared(0); |
1072 |
|
/** |
1073 |
|
* acquireSharedInterruptibly returns after release, but not before |
1074 |
|
*/ |
1075 |
< |
public void testLatchAcquireSharedInterruptibly() { |
1075 |
> |
public void testAcquireSharedInterruptibly() { |
1076 |
|
final BooleanLatch l = new BooleanLatch(); |
1077 |
|
|
1078 |
|
Thread t = new Thread(new Runnable() { |
1102 |
|
/** |
1103 |
|
* acquireSharedTimed returns after release |
1104 |
|
*/ |
1105 |
< |
public void testLatchTimedacquireSharedInterruptibly() { |
1105 |
> |
public void testAsquireSharedTimed() { |
1106 |
|
final BooleanLatch l = new BooleanLatch(); |
1107 |
|
|
1108 |
|
Thread t = new Thread(new Runnable() { |
1109 |
|
public void run() { |
1110 |
|
try { |
1111 |
|
threadAssertFalse(l.isSignalled()); |
1112 |
< |
threadAssertTrue(l.acquireSharedNanos(0, MEDIUM_DELAY_MS* 1000 * 1000)); |
1112 |
> |
threadAssertTrue(l.tryAcquireSharedNanos(0, MEDIUM_DELAY_MS* 1000 * 1000)); |
1113 |
|
threadAssertTrue(l.isSignalled()); |
1114 |
|
|
1115 |
|
} catch(InterruptedException e){ |
1132 |
|
/** |
1133 |
|
* acquireSharedInterruptibly throws IE if interrupted before released |
1134 |
|
*/ |
1135 |
< |
public void testLatchAcquireSharedInterruptibly_InterruptedException() { |
1135 |
> |
public void testAcquireSharedInterruptibly_InterruptedException() { |
1136 |
|
final BooleanLatch l = new BooleanLatch(); |
1137 |
|
Thread t = new Thread(new Runnable() { |
1138 |
|
public void run() { |
1156 |
|
/** |
1157 |
|
* acquireSharedTimed throws IE if interrupted before released |
1158 |
|
*/ |
1159 |
< |
public void testLatchTimedAwait_InterruptedException() { |
1159 |
> |
public void testAcquireSharedNanos_InterruptedException() { |
1160 |
|
final BooleanLatch l = new BooleanLatch(); |
1161 |
|
Thread t = new Thread(new Runnable() { |
1162 |
|
public void run() { |
1163 |
|
try { |
1164 |
|
threadAssertFalse(l.isSignalled()); |
1165 |
< |
l.acquireSharedNanos(0, SMALL_DELAY_MS* 1000 * 1000); |
1165 |
> |
l.tryAcquireSharedNanos(0, SMALL_DELAY_MS* 1000 * 1000); |
1166 |
|
threadShouldThrow(); |
1167 |
|
} catch(InterruptedException success){} |
1168 |
|
} |
1181 |
|
/** |
1182 |
|
* acquireSharedTimed times out if not released before timeout |
1183 |
|
*/ |
1184 |
< |
public void testLatchAwaitTimeout() { |
1184 |
> |
public void testAcquireSharedNanos_Timeout() { |
1185 |
|
final BooleanLatch l = new BooleanLatch(); |
1186 |
|
Thread t = new Thread(new Runnable() { |
1187 |
|
public void run() { |
1188 |
|
try { |
1189 |
|
threadAssertFalse(l.isSignalled()); |
1190 |
< |
threadAssertFalse(l.acquireSharedNanos(0, SMALL_DELAY_MS* 1000 * 1000)); |
1190 |
> |
threadAssertFalse(l.tryAcquireSharedNanos(0, SMALL_DELAY_MS* 1000 * 1000)); |
1191 |
|
} catch(InterruptedException ie){ |
1192 |
|
threadUnexpectedException(); |
1193 |
|
} |
1202 |
|
unexpectedException(); |
1203 |
|
} |
1204 |
|
} |
1205 |
+ |
|
1206 |
|
|
1207 |
|
} |