8 |
|
import junit.framework.*; |
9 |
|
import java.util.concurrent.locks.*; |
10 |
|
import java.util.concurrent.*; |
11 |
+ |
import java.util.*; |
12 |
|
import java.io.*; |
13 |
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|
14 |
|
public class ReentrantLockTest extends JSR166TestCase { |
14 |
– |
static int HOLD_COUNT_TEST_LIMIT = 20; |
15 |
– |
|
15 |
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public static void main(String[] args) { |
16 |
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junit.textui.TestRunner.run (suite()); |
17 |
|
} |
19 |
– |
|
18 |
|
public static Test suite() { |
19 |
|
return new TestSuite(ReentrantLockTest.class); |
20 |
|
} |
21 |
|
|
22 |
+ |
/** |
23 |
+ |
* A runnable calling lockInterruptibly |
24 |
+ |
*/ |
25 |
+ |
class InterruptibleLockRunnable implements Runnable { |
26 |
+ |
final ReentrantLock lock; |
27 |
+ |
InterruptibleLockRunnable(ReentrantLock l) { lock = l; } |
28 |
+ |
public void run() { |
29 |
+ |
try { |
30 |
+ |
lock.lockInterruptibly(); |
31 |
+ |
} catch(InterruptedException success){} |
32 |
+ |
} |
33 |
+ |
} |
34 |
+ |
|
35 |
+ |
|
36 |
+ |
/** |
37 |
+ |
* A runnable calling lockInterruptibly that expects to be |
38 |
+ |
* interrupted |
39 |
+ |
*/ |
40 |
+ |
class InterruptedLockRunnable implements Runnable { |
41 |
+ |
final ReentrantLock lock; |
42 |
+ |
InterruptedLockRunnable(ReentrantLock l) { lock = l; } |
43 |
+ |
public void run() { |
44 |
+ |
try { |
45 |
+ |
lock.lockInterruptibly(); |
46 |
+ |
threadShouldThrow(); |
47 |
+ |
} catch(InterruptedException success){} |
48 |
+ |
} |
49 |
+ |
} |
50 |
+ |
|
51 |
+ |
/** |
52 |
+ |
* Subclass to expose protected methods |
53 |
+ |
*/ |
54 |
+ |
static class PublicReentrantLock extends ReentrantLock { |
55 |
+ |
PublicReentrantLock() { super(); } |
56 |
+ |
public Collection<Thread> getQueuedThreads() { |
57 |
+ |
return super.getQueuedThreads(); |
58 |
+ |
} |
59 |
+ |
public ConditionObject newCondition() { |
60 |
+ |
return new PublicCondition(this); |
61 |
+ |
} |
62 |
+ |
|
63 |
+ |
static class PublicCondition extends ReentrantLock.ConditionObject { |
64 |
+ |
PublicCondition(PublicReentrantLock l) { super(l); } |
65 |
+ |
public Collection<Thread> getWaitingThreads() { |
66 |
+ |
return super.getWaitingThreads(); |
67 |
+ |
} |
68 |
+ |
} |
69 |
+ |
|
70 |
+ |
} |
71 |
+ |
|
72 |
|
/* |
73 |
< |
* Unlocks an unlocked lock, throws Illegal Monitor State |
26 |
< |
* |
73 |
> |
* locking an unlocked lock succeeds |
74 |
|
*/ |
75 |
< |
public void testIllegalMonitorStateException(){ |
75 |
> |
public void testLock() { |
76 |
|
ReentrantLock rl = new ReentrantLock(); |
77 |
< |
try{ |
78 |
< |
rl.unlock(); |
79 |
< |
fail("Should of thown Illegal Monitor State Exception"); |
77 |
> |
rl.lock(); |
78 |
> |
assertTrue(rl.isLocked()); |
79 |
> |
rl.unlock(); |
80 |
> |
} |
81 |
|
|
82 |
< |
} catch(IllegalMonitorStateException success){} |
82 |
> |
/* |
83 |
> |
* locking an unlocked fair lock succeeds |
84 |
> |
*/ |
85 |
> |
public void testFairLock() { |
86 |
> |
ReentrantLock rl = new ReentrantLock(true); |
87 |
> |
rl.lock(); |
88 |
> |
assertTrue(rl.isLocked()); |
89 |
> |
rl.unlock(); |
90 |
> |
} |
91 |
|
|
92 |
+ |
/* |
93 |
+ |
* Unlocking an unlocked lock throws IllegalMonitorStateException |
94 |
+ |
*/ |
95 |
+ |
public void testUnlock_IllegalMonitorStateException() { |
96 |
+ |
ReentrantLock rl = new ReentrantLock(); |
97 |
+ |
try { |
98 |
+ |
rl.unlock(); |
99 |
+ |
shouldThrow(); |
100 |
|
|
101 |
+ |
} catch(IllegalMonitorStateException success){} |
102 |
|
} |
103 |
< |
|
103 |
> |
|
104 |
|
/* |
105 |
< |
* makes a lock, locks it, tries to aquire the lock in another thread |
41 |
< |
* interrupts that thread and waits for an interrupted Exception to |
42 |
< |
* be thrown. |
105 |
> |
* trylock on an unlocked lock succeeds |
106 |
|
*/ |
107 |
+ |
public void testTryLock() { |
108 |
+ |
ReentrantLock rl = new ReentrantLock(); |
109 |
+ |
assertTrue(rl.tryLock()); |
110 |
+ |
assertTrue(rl.isLocked()); |
111 |
+ |
rl.unlock(); |
112 |
+ |
} |
113 |
+ |
|
114 |
|
|
115 |
< |
public void testInterruptedException(){ |
115 |
> |
/* |
116 |
> |
* getQueueLength reports number of waiting threads |
117 |
> |
*/ |
118 |
> |
public void testGetQueueLength() { |
119 |
|
final ReentrantLock lock = new ReentrantLock(); |
120 |
< |
lock.lock(); |
121 |
< |
Thread t = new Thread(new Runnable() { |
49 |
< |
public void run(){ |
50 |
< |
try{ |
51 |
< |
lock.lockInterruptibly(); |
52 |
< |
threadFail("should throw"); |
53 |
< |
} catch(InterruptedException success){} |
54 |
< |
} |
55 |
< |
}); |
120 |
> |
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
121 |
> |
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
122 |
|
try { |
123 |
< |
t.start(); |
124 |
< |
t.interrupt(); |
123 |
> |
assertEquals(0, lock.getQueueLength()); |
124 |
> |
lock.lock(); |
125 |
> |
t1.start(); |
126 |
> |
Thread.sleep(SHORT_DELAY_MS); |
127 |
> |
assertEquals(1, lock.getQueueLength()); |
128 |
> |
t2.start(); |
129 |
> |
Thread.sleep(SHORT_DELAY_MS); |
130 |
> |
assertEquals(2, lock.getQueueLength()); |
131 |
> |
t1.interrupt(); |
132 |
> |
Thread.sleep(SHORT_DELAY_MS); |
133 |
> |
assertEquals(1, lock.getQueueLength()); |
134 |
|
lock.unlock(); |
135 |
< |
t.join(); |
135 |
> |
Thread.sleep(SHORT_DELAY_MS); |
136 |
> |
assertEquals(0, lock.getQueueLength()); |
137 |
> |
t1.join(); |
138 |
> |
t2.join(); |
139 |
|
} catch(Exception e){ |
140 |
< |
fail("unexpected exception"); |
140 |
> |
unexpectedException(); |
141 |
|
} |
142 |
|
} |
143 |
|
|
144 |
|
/* |
145 |
< |
* tests for interrupted exception on a timed wait |
68 |
< |
* |
145 |
> |
* getQueuedThreads includes waiting threads |
146 |
|
*/ |
147 |
< |
|
147 |
> |
public void testGetQueuedThreads() { |
148 |
> |
final PublicReentrantLock lock = new PublicReentrantLock(); |
149 |
> |
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
150 |
> |
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
151 |
> |
try { |
152 |
> |
assertTrue(lock.getQueuedThreads().isEmpty()); |
153 |
> |
lock.lock(); |
154 |
> |
assertTrue(lock.getQueuedThreads().isEmpty()); |
155 |
> |
t1.start(); |
156 |
> |
Thread.sleep(SHORT_DELAY_MS); |
157 |
> |
assertTrue(lock.getQueuedThreads().contains(t1)); |
158 |
> |
t2.start(); |
159 |
> |
Thread.sleep(SHORT_DELAY_MS); |
160 |
> |
assertTrue(lock.getQueuedThreads().contains(t1)); |
161 |
> |
assertTrue(lock.getQueuedThreads().contains(t2)); |
162 |
> |
t1.interrupt(); |
163 |
> |
Thread.sleep(SHORT_DELAY_MS); |
164 |
> |
assertFalse(lock.getQueuedThreads().contains(t1)); |
165 |
> |
assertTrue(lock.getQueuedThreads().contains(t2)); |
166 |
> |
lock.unlock(); |
167 |
> |
Thread.sleep(SHORT_DELAY_MS); |
168 |
> |
assertTrue(lock.getQueuedThreads().isEmpty()); |
169 |
> |
t1.join(); |
170 |
> |
t2.join(); |
171 |
> |
} catch(Exception e){ |
172 |
> |
unexpectedException(); |
173 |
> |
} |
174 |
> |
} |
175 |
> |
|
176 |
|
|
177 |
< |
public void testInterruptedException2(){ |
177 |
> |
/* |
178 |
> |
* timed trylock is interruptible. |
179 |
> |
*/ |
180 |
> |
public void testInterruptedException2() { |
181 |
|
final ReentrantLock lock = new ReentrantLock(); |
182 |
|
lock.lock(); |
183 |
|
Thread t = new Thread(new Runnable() { |
184 |
< |
public void run(){ |
185 |
< |
try{ |
184 |
> |
public void run() { |
185 |
> |
try { |
186 |
|
lock.tryLock(MEDIUM_DELAY_MS,TimeUnit.MILLISECONDS); |
187 |
< |
threadFail("should throw"); |
187 |
> |
threadShouldThrow(); |
188 |
|
} catch(InterruptedException success){} |
189 |
|
} |
190 |
|
}); |
192 |
|
t.start(); |
193 |
|
t.interrupt(); |
194 |
|
} catch(Exception e){ |
195 |
< |
fail("unexpected exception"); |
195 |
> |
unexpectedException(); |
196 |
|
} |
197 |
|
} |
198 |
|
|
199 |
|
|
200 |
+ |
/** |
201 |
+ |
* Trylock on a locked lock fails |
202 |
+ |
*/ |
203 |
|
public void testTryLockWhenLocked() { |
204 |
|
final ReentrantLock lock = new ReentrantLock(); |
205 |
|
lock.lock(); |
206 |
|
Thread t = new Thread(new Runnable() { |
207 |
< |
public void run(){ |
207 |
> |
public void run() { |
208 |
|
threadAssertFalse(lock.tryLock()); |
209 |
|
} |
210 |
|
}); |
213 |
|
t.join(); |
214 |
|
lock.unlock(); |
215 |
|
} catch(Exception e){ |
216 |
< |
fail("unexpected exception"); |
216 |
> |
unexpectedException(); |
217 |
|
} |
218 |
|
} |
219 |
|
|
220 |
< |
public void testTryLock_Timeout(){ |
220 |
> |
/** |
221 |
> |
* Timed trylock on a locked lock times out |
222 |
> |
*/ |
223 |
> |
public void testTryLock_Timeout() { |
224 |
|
final ReentrantLock lock = new ReentrantLock(); |
225 |
|
lock.lock(); |
226 |
|
Thread t = new Thread(new Runnable() { |
227 |
< |
public void run(){ |
227 |
> |
public void run() { |
228 |
|
try { |
229 |
|
threadAssertFalse(lock.tryLock(1, TimeUnit.MILLISECONDS)); |
230 |
|
} catch (Exception ex) { |
231 |
< |
threadFail("unexpected exception"); |
231 |
> |
threadUnexpectedException(); |
232 |
|
} |
233 |
|
} |
234 |
|
}); |
237 |
|
t.join(); |
238 |
|
lock.unlock(); |
239 |
|
} catch(Exception e){ |
240 |
< |
fail("unexpected exception"); |
240 |
> |
unexpectedException(); |
241 |
|
} |
242 |
|
} |
243 |
|
|
244 |
+ |
/** |
245 |
+ |
* getHoldCount returns number of recursive holds |
246 |
+ |
*/ |
247 |
|
public void testGetHoldCount() { |
248 |
|
ReentrantLock lock = new ReentrantLock(); |
249 |
< |
for(int i = 1; i <= ReentrantLockTest.HOLD_COUNT_TEST_LIMIT;i++) { |
249 |
> |
for(int i = 1; i <= SIZE; i++) { |
250 |
|
lock.lock(); |
251 |
|
assertEquals(i,lock.getHoldCount()); |
252 |
|
} |
253 |
< |
for(int i = ReentrantLockTest.HOLD_COUNT_TEST_LIMIT; i > 0; i--) { |
253 |
> |
for(int i = SIZE; i > 0; i--) { |
254 |
|
lock.unlock(); |
255 |
|
assertEquals(i-1,lock.getHoldCount()); |
256 |
|
} |
257 |
|
} |
258 |
|
|
259 |
|
|
260 |
< |
|
261 |
< |
|
260 |
> |
/** |
261 |
> |
* isLocked is true when locked and false when not |
262 |
> |
*/ |
263 |
|
public void testIsLocked() { |
264 |
|
final ReentrantLock lock = new ReentrantLock(); |
265 |
|
lock.lock(); |
273 |
|
Thread.sleep(SMALL_DELAY_MS); |
274 |
|
} |
275 |
|
catch(Exception e) { |
276 |
< |
threadFail("unexpected exception"); |
276 |
> |
threadUnexpectedException(); |
277 |
|
} |
278 |
|
lock.unlock(); |
279 |
|
} |
280 |
|
}); |
281 |
< |
try{ |
281 |
> |
try { |
282 |
|
t.start(); |
283 |
|
Thread.sleep(SHORT_DELAY_MS); |
284 |
|
assertTrue(lock.isLocked()); |
285 |
|
t.join(); |
286 |
|
assertFalse(lock.isLocked()); |
287 |
|
} catch(Exception e){ |
288 |
< |
fail("unexpected exception"); |
288 |
> |
unexpectedException(); |
289 |
|
} |
290 |
|
} |
291 |
|
|
292 |
|
|
293 |
< |
public void testLockInterruptibly() { |
293 |
> |
/* |
294 |
> |
* lockInterruptibly is interruptible. |
295 |
> |
*/ |
296 |
> |
public void testLockInterruptibly1() { |
297 |
> |
final ReentrantLock lock = new ReentrantLock(); |
298 |
> |
lock.lock(); |
299 |
> |
Thread t = new Thread(new InterruptedLockRunnable(lock)); |
300 |
> |
try { |
301 |
> |
t.start(); |
302 |
> |
t.interrupt(); |
303 |
> |
lock.unlock(); |
304 |
> |
t.join(); |
305 |
> |
} catch(Exception e){ |
306 |
> |
unexpectedException(); |
307 |
> |
} |
308 |
> |
} |
309 |
> |
|
310 |
> |
/** |
311 |
> |
* lockInterruptibly succeeds when unlocked, else is interruptible |
312 |
> |
*/ |
313 |
> |
public void testLockInterruptibly2() { |
314 |
|
final ReentrantLock lock = new ReentrantLock(); |
315 |
|
try { |
316 |
|
lock.lockInterruptibly(); |
317 |
|
} catch(Exception e) { |
318 |
< |
fail("unexpected exception"); |
318 |
> |
unexpectedException(); |
319 |
|
} |
320 |
< |
Thread t = new Thread(new Runnable() { |
183 |
< |
public void run() { |
184 |
< |
try { |
185 |
< |
lock.lockInterruptibly(); |
186 |
< |
threadFail("should throw"); |
187 |
< |
} |
188 |
< |
catch(InterruptedException e) {} |
189 |
< |
} |
190 |
< |
}); |
320 |
> |
Thread t = new Thread(new InterruptedLockRunnable(lock)); |
321 |
|
try { |
322 |
|
t.start(); |
323 |
|
t.interrupt(); |
325 |
|
assertTrue(lock.isHeldByCurrentThread()); |
326 |
|
t.join(); |
327 |
|
} catch(Exception e){ |
328 |
< |
fail("unexpected exception"); |
328 |
> |
unexpectedException(); |
329 |
|
} |
330 |
|
} |
331 |
|
|
332 |
+ |
/** |
333 |
+ |
* Calling await without holding lock throws IllegalMonitorStateException |
334 |
+ |
*/ |
335 |
|
public void testAwait_IllegalMonitor() { |
336 |
|
final ReentrantLock lock = new ReentrantLock(); |
337 |
|
final Condition c = lock.newCondition(); |
338 |
|
try { |
339 |
|
c.await(); |
340 |
< |
fail("should throw"); |
340 |
> |
shouldThrow(); |
341 |
|
} |
342 |
|
catch (IllegalMonitorStateException success) { |
343 |
|
} |
344 |
|
catch (Exception ex) { |
345 |
< |
fail("should throw IMSE"); |
345 |
> |
unexpectedException(); |
346 |
|
} |
347 |
|
} |
348 |
|
|
349 |
+ |
/** |
350 |
+ |
* Calling signal without holding lock throws IllegalMonitorStateException |
351 |
+ |
*/ |
352 |
|
public void testSignal_IllegalMonitor() { |
353 |
|
final ReentrantLock lock = new ReentrantLock(); |
354 |
|
final Condition c = lock.newCondition(); |
355 |
|
try { |
356 |
|
c.signal(); |
357 |
< |
fail("should throw"); |
357 |
> |
shouldThrow(); |
358 |
|
} |
359 |
|
catch (IllegalMonitorStateException success) { |
360 |
|
} |
361 |
|
catch (Exception ex) { |
362 |
< |
fail("should throw IMSE"); |
362 |
> |
unexpectedException(); |
363 |
|
} |
364 |
|
} |
365 |
|
|
366 |
+ |
/** |
367 |
+ |
* awaitNanos without a signal times out |
368 |
+ |
*/ |
369 |
|
public void testAwaitNanos_Timeout() { |
370 |
|
final ReentrantLock lock = new ReentrantLock(); |
371 |
|
final Condition c = lock.newCondition(); |
376 |
|
lock.unlock(); |
377 |
|
} |
378 |
|
catch (Exception ex) { |
379 |
< |
fail("unexpected exception"); |
379 |
> |
unexpectedException(); |
380 |
|
} |
381 |
|
} |
382 |
|
|
383 |
+ |
/** |
384 |
+ |
* timed await without a signal times out |
385 |
+ |
*/ |
386 |
|
public void testAwait_Timeout() { |
387 |
|
final ReentrantLock lock = new ReentrantLock(); |
388 |
|
final Condition c = lock.newCondition(); |
392 |
|
lock.unlock(); |
393 |
|
} |
394 |
|
catch (Exception ex) { |
395 |
< |
fail("unexpected exception"); |
395 |
> |
unexpectedException(); |
396 |
|
} |
397 |
|
} |
398 |
|
|
399 |
+ |
/** |
400 |
+ |
* awaitUntil without a signal times out |
401 |
+ |
*/ |
402 |
|
public void testAwaitUntil_Timeout() { |
403 |
|
final ReentrantLock lock = new ReentrantLock(); |
404 |
|
final Condition c = lock.newCondition(); |
409 |
|
lock.unlock(); |
410 |
|
} |
411 |
|
catch (Exception ex) { |
412 |
< |
fail("unexpected exception"); |
412 |
> |
unexpectedException(); |
413 |
|
} |
414 |
|
} |
415 |
|
|
416 |
+ |
/** |
417 |
+ |
* await returns when signalled |
418 |
+ |
*/ |
419 |
|
public void testAwait() { |
420 |
|
final ReentrantLock lock = new ReentrantLock(); |
421 |
< |
final Condition c = lock.newCondition(); |
421 |
> |
final ReentrantLock.ConditionObject c = lock.newCondition(); |
422 |
|
Thread t = new Thread(new Runnable() { |
423 |
|
public void run() { |
424 |
|
try { |
427 |
|
lock.unlock(); |
428 |
|
} |
429 |
|
catch(InterruptedException e) { |
430 |
< |
threadFail("unexpected exception"); |
430 |
> |
threadUnexpectedException(); |
431 |
|
} |
432 |
|
} |
433 |
|
}); |
442 |
|
assertFalse(t.isAlive()); |
443 |
|
} |
444 |
|
catch (Exception ex) { |
445 |
< |
fail("unexpected exception"); |
445 |
> |
unexpectedException(); |
446 |
|
} |
447 |
|
} |
448 |
|
|
449 |
+ |
/** |
450 |
+ |
* hasWaiters returns true when a thread is waiting, else false |
451 |
+ |
*/ |
452 |
+ |
public void testHasWaiters() { |
453 |
+ |
final ReentrantLock lock = new ReentrantLock(); |
454 |
+ |
final ReentrantLock.ConditionObject c = lock.newCondition(); |
455 |
+ |
Thread t = new Thread(new Runnable() { |
456 |
+ |
public void run() { |
457 |
+ |
try { |
458 |
+ |
lock.lock(); |
459 |
+ |
threadAssertFalse(c.hasWaiters()); |
460 |
+ |
threadAssertEquals(0, c.getWaitQueueLength()); |
461 |
+ |
c.await(); |
462 |
+ |
lock.unlock(); |
463 |
+ |
} |
464 |
+ |
catch(InterruptedException e) { |
465 |
+ |
threadUnexpectedException(); |
466 |
+ |
} |
467 |
+ |
} |
468 |
+ |
}); |
469 |
+ |
|
470 |
+ |
try { |
471 |
+ |
t.start(); |
472 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
473 |
+ |
lock.lock(); |
474 |
+ |
assertTrue(c.hasWaiters()); |
475 |
+ |
assertEquals(1, c.getWaitQueueLength()); |
476 |
+ |
c.signal(); |
477 |
+ |
lock.unlock(); |
478 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
479 |
+ |
lock.lock(); |
480 |
+ |
assertFalse(c.hasWaiters()); |
481 |
+ |
assertEquals(0, c.getWaitQueueLength()); |
482 |
+ |
lock.unlock(); |
483 |
+ |
t.join(SHORT_DELAY_MS); |
484 |
+ |
assertFalse(t.isAlive()); |
485 |
+ |
} |
486 |
+ |
catch (Exception ex) { |
487 |
+ |
unexpectedException(); |
488 |
+ |
} |
489 |
+ |
} |
490 |
+ |
|
491 |
+ |
/** |
492 |
+ |
* getWaitQueueLength returns number of waiting threads |
493 |
+ |
*/ |
494 |
+ |
public void testGetWaitQueueLength() { |
495 |
+ |
final ReentrantLock lock = new ReentrantLock(); |
496 |
+ |
final ReentrantLock.ConditionObject c = lock.newCondition(); |
497 |
+ |
Thread t1 = new Thread(new Runnable() { |
498 |
+ |
public void run() { |
499 |
+ |
try { |
500 |
+ |
lock.lock(); |
501 |
+ |
threadAssertFalse(c.hasWaiters()); |
502 |
+ |
threadAssertEquals(0, c.getWaitQueueLength()); |
503 |
+ |
c.await(); |
504 |
+ |
lock.unlock(); |
505 |
+ |
} |
506 |
+ |
catch(InterruptedException e) { |
507 |
+ |
threadUnexpectedException(); |
508 |
+ |
} |
509 |
+ |
} |
510 |
+ |
}); |
511 |
+ |
|
512 |
+ |
Thread t2 = new Thread(new Runnable() { |
513 |
+ |
public void run() { |
514 |
+ |
try { |
515 |
+ |
lock.lock(); |
516 |
+ |
threadAssertTrue(c.hasWaiters()); |
517 |
+ |
threadAssertEquals(1, c.getWaitQueueLength()); |
518 |
+ |
c.await(); |
519 |
+ |
lock.unlock(); |
520 |
+ |
} |
521 |
+ |
catch(InterruptedException e) { |
522 |
+ |
threadUnexpectedException(); |
523 |
+ |
} |
524 |
+ |
} |
525 |
+ |
}); |
526 |
+ |
|
527 |
+ |
try { |
528 |
+ |
t1.start(); |
529 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
530 |
+ |
t2.start(); |
531 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
532 |
+ |
lock.lock(); |
533 |
+ |
assertTrue(c.hasWaiters()); |
534 |
+ |
assertEquals(2, c.getWaitQueueLength()); |
535 |
+ |
c.signalAll(); |
536 |
+ |
lock.unlock(); |
537 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
538 |
+ |
lock.lock(); |
539 |
+ |
assertFalse(c.hasWaiters()); |
540 |
+ |
assertEquals(0, c.getWaitQueueLength()); |
541 |
+ |
lock.unlock(); |
542 |
+ |
t1.join(SHORT_DELAY_MS); |
543 |
+ |
t2.join(SHORT_DELAY_MS); |
544 |
+ |
assertFalse(t1.isAlive()); |
545 |
+ |
assertFalse(t2.isAlive()); |
546 |
+ |
} |
547 |
+ |
catch (Exception ex) { |
548 |
+ |
unexpectedException(); |
549 |
+ |
} |
550 |
+ |
} |
551 |
+ |
|
552 |
+ |
/** |
553 |
+ |
* getWaitingThreads returns only and all waiting threads |
554 |
+ |
*/ |
555 |
+ |
public void testGetWaitingThreads() { |
556 |
+ |
final PublicReentrantLock lock = new PublicReentrantLock(); |
557 |
+ |
final PublicReentrantLock.PublicCondition c = (PublicReentrantLock.PublicCondition)lock.newCondition(); |
558 |
+ |
Thread t1 = new Thread(new Runnable() { |
559 |
+ |
public void run() { |
560 |
+ |
try { |
561 |
+ |
lock.lock(); |
562 |
+ |
threadAssertTrue(c.getWaitingThreads().isEmpty()); |
563 |
+ |
c.await(); |
564 |
+ |
lock.unlock(); |
565 |
+ |
} |
566 |
+ |
catch(InterruptedException e) { |
567 |
+ |
threadUnexpectedException(); |
568 |
+ |
} |
569 |
+ |
} |
570 |
+ |
}); |
571 |
+ |
|
572 |
+ |
Thread t2 = new Thread(new Runnable() { |
573 |
+ |
public void run() { |
574 |
+ |
try { |
575 |
+ |
lock.lock(); |
576 |
+ |
threadAssertFalse(c.getWaitingThreads().isEmpty()); |
577 |
+ |
c.await(); |
578 |
+ |
lock.unlock(); |
579 |
+ |
} |
580 |
+ |
catch(InterruptedException e) { |
581 |
+ |
threadUnexpectedException(); |
582 |
+ |
} |
583 |
+ |
} |
584 |
+ |
}); |
585 |
+ |
|
586 |
+ |
try { |
587 |
+ |
lock.lock(); |
588 |
+ |
assertTrue(c.getWaitingThreads().isEmpty()); |
589 |
+ |
lock.unlock(); |
590 |
+ |
t1.start(); |
591 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
592 |
+ |
t2.start(); |
593 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
594 |
+ |
lock.lock(); |
595 |
+ |
assertTrue(c.hasWaiters()); |
596 |
+ |
assertTrue(c.getWaitingThreads().contains(t1)); |
597 |
+ |
assertTrue(c.getWaitingThreads().contains(t2)); |
598 |
+ |
c.signalAll(); |
599 |
+ |
lock.unlock(); |
600 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
601 |
+ |
lock.lock(); |
602 |
+ |
assertFalse(c.hasWaiters()); |
603 |
+ |
assertTrue(c.getWaitingThreads().isEmpty()); |
604 |
+ |
lock.unlock(); |
605 |
+ |
t1.join(SHORT_DELAY_MS); |
606 |
+ |
t2.join(SHORT_DELAY_MS); |
607 |
+ |
assertFalse(t1.isAlive()); |
608 |
+ |
assertFalse(t2.isAlive()); |
609 |
+ |
} |
610 |
+ |
catch (Exception ex) { |
611 |
+ |
unexpectedException(); |
612 |
+ |
} |
613 |
+ |
} |
614 |
+ |
|
615 |
+ |
/** |
616 |
+ |
* awaitUninterruptibly doesn't abort on interrupt |
617 |
+ |
*/ |
618 |
|
public void testAwaitUninterruptibly() { |
619 |
|
final ReentrantLock lock = new ReentrantLock(); |
620 |
|
final Condition c = lock.newCondition(); |
633 |
|
lock.lock(); |
634 |
|
c.signal(); |
635 |
|
lock.unlock(); |
636 |
+ |
assert(t.isInterrupted()); |
637 |
|
t.join(SHORT_DELAY_MS); |
638 |
|
assertFalse(t.isAlive()); |
639 |
|
} |
640 |
|
catch (Exception ex) { |
641 |
< |
fail("unexpected exception"); |
641 |
> |
unexpectedException(); |
642 |
|
} |
643 |
|
} |
644 |
|
|
645 |
+ |
/** |
646 |
+ |
* await is interruptible |
647 |
+ |
*/ |
648 |
|
public void testAwait_Interrupt() { |
649 |
|
final ReentrantLock lock = new ReentrantLock(); |
650 |
|
final Condition c = lock.newCondition(); |
654 |
|
lock.lock(); |
655 |
|
c.await(); |
656 |
|
lock.unlock(); |
657 |
< |
threadFail("should throw"); |
657 |
> |
threadShouldThrow(); |
658 |
|
} |
659 |
|
catch(InterruptedException success) { |
660 |
|
} |
669 |
|
assertFalse(t.isAlive()); |
670 |
|
} |
671 |
|
catch (Exception ex) { |
672 |
< |
fail("unexpected exception"); |
672 |
> |
unexpectedException(); |
673 |
|
} |
674 |
|
} |
675 |
|
|
676 |
+ |
/** |
677 |
+ |
* awaitNanos is interruptible |
678 |
+ |
*/ |
679 |
|
public void testAwaitNanos_Interrupt() { |
680 |
|
final ReentrantLock lock = new ReentrantLock(); |
681 |
|
final Condition c = lock.newCondition(); |
685 |
|
lock.lock(); |
686 |
|
c.awaitNanos(SHORT_DELAY_MS * 2 * 1000000); |
687 |
|
lock.unlock(); |
688 |
< |
threadFail("should throw"); |
688 |
> |
threadShouldThrow(); |
689 |
|
} |
690 |
|
catch(InterruptedException success) { |
691 |
|
} |
700 |
|
assertFalse(t.isAlive()); |
701 |
|
} |
702 |
|
catch (Exception ex) { |
703 |
< |
fail("unexpected exception"); |
703 |
> |
unexpectedException(); |
704 |
|
} |
705 |
|
} |
706 |
|
|
707 |
+ |
/** |
708 |
+ |
* awaitUntil is interruptible |
709 |
+ |
*/ |
710 |
|
public void testAwaitUntil_Interrupt() { |
711 |
|
final ReentrantLock lock = new ReentrantLock(); |
712 |
|
final Condition c = lock.newCondition(); |
717 |
|
java.util.Date d = new java.util.Date(); |
718 |
|
c.awaitUntil(new java.util.Date(d.getTime() + 10000)); |
719 |
|
lock.unlock(); |
720 |
< |
threadFail("should throw"); |
720 |
> |
threadShouldThrow(); |
721 |
|
} |
722 |
|
catch(InterruptedException success) { |
723 |
|
} |
732 |
|
assertFalse(t.isAlive()); |
733 |
|
} |
734 |
|
catch (Exception ex) { |
735 |
< |
fail("unexpected exception"); |
735 |
> |
unexpectedException(); |
736 |
|
} |
737 |
|
} |
738 |
|
|
739 |
+ |
/** |
740 |
+ |
* signalAll wakes up all threads |
741 |
+ |
*/ |
742 |
|
public void testSignalAll() { |
743 |
|
final ReentrantLock lock = new ReentrantLock(); |
744 |
|
final Condition c = lock.newCondition(); |
750 |
|
lock.unlock(); |
751 |
|
} |
752 |
|
catch(InterruptedException e) { |
753 |
< |
threadFail("unexpected exception"); |
753 |
> |
threadUnexpectedException(); |
754 |
|
} |
755 |
|
} |
756 |
|
}); |
763 |
|
lock.unlock(); |
764 |
|
} |
765 |
|
catch(InterruptedException e) { |
766 |
< |
threadFail("unexpected exception"); |
766 |
> |
threadUnexpectedException(); |
767 |
|
} |
768 |
|
} |
769 |
|
}); |
781 |
|
assertFalse(t2.isAlive()); |
782 |
|
} |
783 |
|
catch (Exception ex) { |
784 |
< |
fail("unexpected exception"); |
784 |
> |
unexpectedException(); |
785 |
|
} |
786 |
|
} |
787 |
|
|
788 |
+ |
/** |
789 |
+ |
* A serialized lock deserializes as unlocked |
790 |
+ |
*/ |
791 |
|
public void testSerialization() { |
792 |
|
ReentrantLock l = new ReentrantLock(); |
793 |
|
l.lock(); |
806 |
|
r.unlock(); |
807 |
|
} catch(Exception e){ |
808 |
|
e.printStackTrace(); |
809 |
< |
fail("unexpected exception"); |
809 |
> |
unexpectedException(); |
810 |
|
} |
811 |
|
} |
812 |
|
|