1 |
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/* |
2 |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
3 |
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* Expert Group and released to the public domain, as explained at |
4 |
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* http://creativecommons.org/licenses/publicdomain |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
7 |
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*/ |
59 |
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} |
60 |
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|
61 |
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/** |
62 |
+ |
* Releases lock, checking that it had a hold count of 1. |
63 |
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*/ |
64 |
+ |
void releaseLock(ReentrantReadWriteLock.WriteLock lock) { |
65 |
+ |
assertTrue(lock.isHeldByCurrentThread()); |
66 |
+ |
lock.unlock(); |
67 |
+ |
assertFalse(lock.isHeldByCurrentThread()); |
68 |
+ |
} |
69 |
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|
70 |
+ |
/** |
71 |
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* Constructor sets given fairness, and is in unlocked state |
72 |
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*/ |
73 |
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public void testConstructor() { |
199 |
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*/ |
200 |
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public void testWriteLockInterruptibly_Interrupted() throws Exception { |
201 |
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final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
202 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
202 |
> |
lock.writeLock().lock(); |
203 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
204 |
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public void realRun() throws InterruptedException { |
205 |
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lock.writeLock().lockInterruptibly(); |
196 |
– |
lock.writeLock().unlock(); |
197 |
– |
lock.writeLock().lockInterruptibly(); |
198 |
– |
lock.writeLock().unlock(); |
206 |
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}}); |
207 |
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|
201 |
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lock.writeLock().lock(); |
202 |
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t.start(); |
208 |
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Thread.sleep(SHORT_DELAY_MS); |
209 |
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t.interrupt(); |
210 |
< |
Thread.sleep(SHORT_DELAY_MS); |
211 |
< |
lock.writeLock().unlock(); |
207 |
< |
t.join(); |
210 |
> |
awaitTermination(t, LONG_DELAY_MS); |
211 |
> |
releaseLock(lock.writeLock()); |
212 |
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} |
213 |
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|
214 |
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/** |
217 |
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public void testWriteTryLock_Interrupted() throws InterruptedException { |
218 |
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final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
219 |
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lock.writeLock().lock(); |
220 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
220 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
221 |
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public void realRun() throws InterruptedException { |
222 |
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lock.writeLock().tryLock(SMALL_DELAY_MS, MILLISECONDS); |
223 |
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}}); |
224 |
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|
221 |
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t.start(); |
225 |
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Thread.sleep(SHORT_DELAY_MS); |
226 |
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t.interrupt(); |
227 |
< |
lock.writeLock().unlock(); |
228 |
< |
t.join(); |
227 |
> |
awaitTermination(t, LONG_DELAY_MS); |
228 |
> |
releaseLock(lock.writeLock()); |
229 |
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} |
230 |
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|
231 |
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/** |
234 |
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public void testReadLockInterruptibly_Interrupted() throws InterruptedException { |
235 |
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final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
236 |
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lock.writeLock().lock(); |
237 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
237 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
238 |
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public void realRun() throws InterruptedException { |
239 |
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lock.readLock().lockInterruptibly(); |
240 |
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}}); |
241 |
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|
239 |
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t.start(); |
242 |
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Thread.sleep(SHORT_DELAY_MS); |
243 |
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t.interrupt(); |
244 |
< |
Thread.sleep(SHORT_DELAY_MS); |
245 |
< |
lock.writeLock().unlock(); |
244 |
< |
t.join(); |
244 |
> |
awaitTermination(t, LONG_DELAY_MS); |
245 |
> |
releaseLock(lock.writeLock()); |
246 |
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} |
247 |
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|
248 |
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/** |
251 |
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public void testReadTryLock_Interrupted() throws InterruptedException { |
252 |
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final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
253 |
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lock.writeLock().lock(); |
254 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
254 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
255 |
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public void realRun() throws InterruptedException { |
256 |
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lock.readLock().tryLock(LONG_DELAY_MS, MILLISECONDS); |
257 |
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}}); |
258 |
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|
258 |
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t.start(); |
259 |
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Thread.sleep(SHORT_DELAY_MS); |
260 |
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t.interrupt(); |
261 |
< |
t.join(); |
261 |
> |
awaitTermination(t, LONG_DELAY_MS); |
262 |
> |
releaseLock(lock.writeLock()); |
263 |
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} |
264 |
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265 |
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269 |
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public void testWriteTryLockWhenLocked() throws InterruptedException { |
270 |
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final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
271 |
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lock.writeLock().lock(); |
272 |
< |
Thread t = new Thread(new CheckedRunnable() { |
272 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
273 |
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public void realRun() { |
274 |
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assertFalse(lock.writeLock().tryLock()); |
275 |
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}}); |
276 |
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|
277 |
< |
t.start(); |
277 |
< |
t.join(); |
277 |
> |
awaitTermination(t, LONG_DELAY_MS); |
278 |
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lock.writeLock().unlock(); |
279 |
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} |
280 |
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|
284 |
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public void testReadTryLockWhenLocked() throws InterruptedException { |
285 |
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final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
286 |
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lock.writeLock().lock(); |
287 |
< |
Thread t = new Thread(new CheckedRunnable() { |
287 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
288 |
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public void realRun() { |
289 |
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assertFalse(lock.readLock().tryLock()); |
290 |
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}}); |
291 |
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|
292 |
< |
t.start(); |
293 |
< |
t.join(); |
292 |
> |
awaitTermination(t, LONG_DELAY_MS); |
293 |
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lock.writeLock().unlock(); |
294 |
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} |
295 |
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|
299 |
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public void testMultipleReadLocks() throws InterruptedException { |
300 |
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final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
301 |
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lock.readLock().lock(); |
302 |
< |
Thread t = new Thread(new CheckedRunnable() { |
302 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
303 |
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public void realRun() { |
304 |
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assertTrue(lock.readLock().tryLock()); |
305 |
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lock.readLock().unlock(); |
306 |
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}}); |
307 |
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|
308 |
< |
t.start(); |
310 |
< |
t.join(); |
308 |
> |
awaitTermination(t, LONG_DELAY_MS); |
309 |
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lock.readLock().unlock(); |
310 |
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} |
311 |
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|
315 |
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public void testWriteAfterMultipleReadLocks() throws InterruptedException { |
316 |
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final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
317 |
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lock.readLock().lock(); |
318 |
< |
Thread t1 = new Thread(new CheckedRunnable() { |
318 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
319 |
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public void realRun() { |
320 |
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lock.readLock().lock(); |
321 |
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lock.readLock().unlock(); |
322 |
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}}); |
323 |
< |
Thread t2 = new Thread(new CheckedRunnable() { |
323 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
324 |
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public void realRun() { |
325 |
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lock.writeLock().lock(); |
326 |
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lock.writeLock().unlock(); |
327 |
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}}); |
328 |
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|
331 |
– |
t1.start(); |
332 |
– |
t2.start(); |
329 |
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Thread.sleep(SHORT_DELAY_MS); |
330 |
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lock.readLock().unlock(); |
331 |
< |
t1.join(MEDIUM_DELAY_MS); |
332 |
< |
t2.join(MEDIUM_DELAY_MS); |
337 |
< |
assertTrue(!t1.isAlive()); |
338 |
< |
assertTrue(!t2.isAlive()); |
331 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
332 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
333 |
|
} |
334 |
|
|
335 |
|
/** |
338 |
|
public void testReadAfterWriteLock() throws InterruptedException { |
339 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
340 |
|
lock.writeLock().lock(); |
341 |
< |
Thread t1 = new Thread(new CheckedRunnable() { |
341 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
342 |
|
public void realRun() { |
343 |
|
lock.readLock().lock(); |
344 |
|
lock.readLock().unlock(); |
345 |
|
}}); |
346 |
< |
Thread t2 = new Thread(new CheckedRunnable() { |
346 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
347 |
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public void realRun() { |
348 |
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lock.readLock().lock(); |
349 |
|
lock.readLock().unlock(); |
350 |
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}}); |
351 |
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|
358 |
– |
t1.start(); |
359 |
– |
t2.start(); |
352 |
|
Thread.sleep(SHORT_DELAY_MS); |
353 |
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lock.writeLock().unlock(); |
354 |
< |
t1.join(MEDIUM_DELAY_MS); |
355 |
< |
t2.join(MEDIUM_DELAY_MS); |
364 |
< |
assertTrue(!t1.isAlive()); |
365 |
< |
assertTrue(!t2.isAlive()); |
354 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
355 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
356 |
|
} |
357 |
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|
358 |
|
/** |
373 |
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public void testReadHoldingWriteLock2() throws InterruptedException { |
374 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
375 |
|
lock.writeLock().lock(); |
376 |
< |
Thread t1 = new Thread(new CheckedRunnable() { |
376 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
377 |
|
public void realRun() { |
378 |
|
lock.readLock().lock(); |
379 |
|
lock.readLock().unlock(); |
380 |
|
}}); |
381 |
< |
Thread t2 = new Thread(new CheckedRunnable() { |
381 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
382 |
|
public void realRun() { |
383 |
|
lock.readLock().lock(); |
384 |
|
lock.readLock().unlock(); |
385 |
|
}}); |
386 |
|
|
397 |
– |
t1.start(); |
398 |
– |
t2.start(); |
387 |
|
lock.readLock().lock(); |
388 |
|
lock.readLock().unlock(); |
389 |
|
Thread.sleep(SHORT_DELAY_MS); |
390 |
|
lock.readLock().lock(); |
391 |
|
lock.readLock().unlock(); |
392 |
|
lock.writeLock().unlock(); |
393 |
< |
t1.join(MEDIUM_DELAY_MS); |
394 |
< |
t2.join(MEDIUM_DELAY_MS); |
407 |
< |
assertTrue(!t1.isAlive()); |
408 |
< |
assertTrue(!t2.isAlive()); |
393 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
394 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
395 |
|
} |
396 |
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|
397 |
|
/** |
398 |
< |
* Read lock succeeds if write locked by current thread even if |
398 |
> |
* Read lock succeeds if write locked by current thread even if |
399 |
|
* other threads are waiting for writelock |
400 |
|
*/ |
401 |
|
public void testReadHoldingWriteLock3() throws InterruptedException { |
402 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
403 |
|
lock.writeLock().lock(); |
404 |
< |
Thread t1 = new Thread(new CheckedRunnable() { |
404 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
405 |
|
public void realRun() { |
406 |
|
lock.writeLock().lock(); |
407 |
|
lock.writeLock().unlock(); |
408 |
|
}}); |
409 |
< |
Thread t2 = new Thread(new CheckedRunnable() { |
409 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
410 |
|
public void realRun() { |
411 |
|
lock.writeLock().lock(); |
412 |
|
lock.writeLock().unlock(); |
413 |
|
}}); |
414 |
|
|
429 |
– |
t1.start(); |
430 |
– |
t2.start(); |
415 |
|
lock.readLock().lock(); |
416 |
|
lock.readLock().unlock(); |
417 |
|
Thread.sleep(SHORT_DELAY_MS); |
418 |
|
lock.readLock().lock(); |
419 |
|
lock.readLock().unlock(); |
420 |
|
lock.writeLock().unlock(); |
421 |
< |
t1.join(MEDIUM_DELAY_MS); |
422 |
< |
t2.join(MEDIUM_DELAY_MS); |
439 |
< |
assertTrue(!t1.isAlive()); |
440 |
< |
assertTrue(!t2.isAlive()); |
421 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
422 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
423 |
|
} |
424 |
|
|
425 |
|
|
426 |
|
/** |
427 |
< |
* Write lock succeeds if write locked by current thread even if |
427 |
> |
* Write lock succeeds if write locked by current thread even if |
428 |
|
* other threads are waiting for writelock |
429 |
|
*/ |
430 |
|
public void testWriteHoldingWriteLock4() throws InterruptedException { |
431 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
432 |
|
lock.writeLock().lock(); |
433 |
< |
Thread t1 = new Thread(new CheckedRunnable() { |
433 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
434 |
|
public void realRun() { |
435 |
|
lock.writeLock().lock(); |
436 |
|
lock.writeLock().unlock(); |
437 |
|
}}); |
438 |
< |
Thread t2 = new Thread(new CheckedRunnable() { |
438 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
439 |
|
public void realRun() { |
440 |
|
lock.writeLock().lock(); |
441 |
|
lock.writeLock().unlock(); |
442 |
|
}}); |
443 |
|
|
462 |
– |
t1.start(); |
463 |
– |
t2.start(); |
444 |
|
lock.writeLock().lock(); |
445 |
|
lock.writeLock().unlock(); |
446 |
|
Thread.sleep(SHORT_DELAY_MS); |
447 |
|
lock.writeLock().lock(); |
448 |
|
lock.writeLock().unlock(); |
449 |
|
lock.writeLock().unlock(); |
450 |
< |
t1.join(MEDIUM_DELAY_MS); |
451 |
< |
t2.join(MEDIUM_DELAY_MS); |
472 |
< |
assertTrue(!t1.isAlive()); |
473 |
< |
assertTrue(!t2.isAlive()); |
450 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
451 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
452 |
|
} |
453 |
|
|
454 |
|
|
470 |
|
public void testReadHoldingWriteLockFair2() throws InterruptedException { |
471 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
472 |
|
lock.writeLock().lock(); |
473 |
< |
Thread t1 = new Thread(new CheckedRunnable() { |
473 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
474 |
|
public void realRun() { |
475 |
|
lock.readLock().lock(); |
476 |
|
lock.readLock().unlock(); |
477 |
|
}}); |
478 |
< |
Thread t2 = new Thread(new CheckedRunnable() { |
478 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
479 |
|
public void realRun() { |
480 |
|
lock.readLock().lock(); |
481 |
|
lock.readLock().unlock(); |
482 |
|
}}); |
483 |
|
|
506 |
– |
t1.start(); |
507 |
– |
t2.start(); |
484 |
|
lock.readLock().lock(); |
485 |
|
lock.readLock().unlock(); |
486 |
|
Thread.sleep(SHORT_DELAY_MS); |
487 |
|
lock.readLock().lock(); |
488 |
|
lock.readLock().unlock(); |
489 |
|
lock.writeLock().unlock(); |
490 |
< |
t1.join(MEDIUM_DELAY_MS); |
491 |
< |
t2.join(MEDIUM_DELAY_MS); |
516 |
< |
assertTrue(!t1.isAlive()); |
517 |
< |
assertTrue(!t2.isAlive()); |
490 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
491 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
492 |
|
} |
493 |
|
|
494 |
|
|
499 |
|
public void testReadHoldingWriteLockFair3() throws InterruptedException { |
500 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
501 |
|
lock.writeLock().lock(); |
502 |
< |
Thread t1 = new Thread(new CheckedRunnable() { |
502 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
503 |
|
public void realRun() { |
504 |
|
lock.writeLock().lock(); |
505 |
|
lock.writeLock().unlock(); |
506 |
|
}}); |
507 |
< |
Thread t2 = new Thread(new CheckedRunnable() { |
507 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
508 |
|
public void realRun() { |
509 |
|
lock.writeLock().lock(); |
510 |
|
lock.writeLock().unlock(); |
511 |
|
}}); |
512 |
|
|
539 |
– |
t1.start(); |
540 |
– |
t2.start(); |
513 |
|
lock.readLock().lock(); |
514 |
|
lock.readLock().unlock(); |
515 |
|
Thread.sleep(SHORT_DELAY_MS); |
516 |
|
lock.readLock().lock(); |
517 |
|
lock.readLock().unlock(); |
518 |
|
lock.writeLock().unlock(); |
519 |
< |
t1.join(MEDIUM_DELAY_MS); |
520 |
< |
t2.join(MEDIUM_DELAY_MS); |
549 |
< |
assertTrue(!t1.isAlive()); |
550 |
< |
assertTrue(!t2.isAlive()); |
519 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
520 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
521 |
|
} |
522 |
|
|
523 |
|
|
528 |
|
public void testWriteHoldingWriteLockFair4() throws InterruptedException { |
529 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
530 |
|
lock.writeLock().lock(); |
531 |
< |
Thread t1 = new Thread(new CheckedRunnable() { |
531 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
532 |
|
public void realRun() { |
533 |
|
lock.writeLock().lock(); |
534 |
|
lock.writeLock().unlock(); |
535 |
|
}}); |
536 |
< |
Thread t2 = new Thread(new CheckedRunnable() { |
536 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
537 |
|
public void realRun() { |
538 |
|
lock.writeLock().lock(); |
539 |
|
lock.writeLock().unlock(); |
540 |
|
}}); |
541 |
|
|
572 |
– |
t1.start(); |
573 |
– |
t2.start(); |
542 |
|
Thread.sleep(SHORT_DELAY_MS); |
543 |
|
assertTrue(lock.isWriteLockedByCurrentThread()); |
544 |
|
assertEquals(1, lock.getWriteHoldCount()); |
548 |
|
lock.writeLock().lock(); |
549 |
|
lock.writeLock().unlock(); |
550 |
|
lock.writeLock().unlock(); |
551 |
< |
t1.join(MEDIUM_DELAY_MS); |
552 |
< |
t2.join(MEDIUM_DELAY_MS); |
585 |
< |
assertTrue(!t1.isAlive()); |
586 |
< |
assertTrue(!t2.isAlive()); |
551 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
552 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
553 |
|
} |
554 |
|
|
555 |
|
|
559 |
|
public void testTryLockWhenReadLocked() throws InterruptedException { |
560 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
561 |
|
lock.readLock().lock(); |
562 |
< |
Thread t = new Thread(new CheckedRunnable() { |
562 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
563 |
|
public void realRun() { |
564 |
|
assertTrue(lock.readLock().tryLock()); |
565 |
|
lock.readLock().unlock(); |
566 |
|
}}); |
567 |
|
|
568 |
< |
t.start(); |
603 |
< |
t.join(); |
568 |
> |
awaitTermination(t, LONG_DELAY_MS); |
569 |
|
lock.readLock().unlock(); |
570 |
|
} |
571 |
|
|
607 |
– |
|
608 |
– |
|
572 |
|
/** |
573 |
|
* write tryLock fails when readlocked |
574 |
|
*/ |
575 |
|
public void testWriteTryLockWhenReadLocked() throws InterruptedException { |
576 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
577 |
|
lock.readLock().lock(); |
578 |
< |
Thread t = new Thread(new CheckedRunnable() { |
578 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
579 |
|
public void realRun() { |
580 |
|
assertFalse(lock.writeLock().tryLock()); |
581 |
|
}}); |
582 |
|
|
583 |
< |
t.start(); |
621 |
< |
t.join(); |
583 |
> |
awaitTermination(t, LONG_DELAY_MS); |
584 |
|
lock.readLock().unlock(); |
585 |
|
} |
586 |
|
|
591 |
|
public void testTryLockWhenReadLockedFair() throws InterruptedException { |
592 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
593 |
|
lock.readLock().lock(); |
594 |
< |
Thread t = new Thread(new CheckedRunnable() { |
594 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
595 |
|
public void realRun() { |
596 |
|
assertTrue(lock.readLock().tryLock()); |
597 |
|
lock.readLock().unlock(); |
598 |
|
}}); |
599 |
|
|
600 |
< |
t.start(); |
639 |
< |
t.join(); |
600 |
> |
awaitTermination(t, LONG_DELAY_MS); |
601 |
|
lock.readLock().unlock(); |
602 |
|
} |
603 |
|
|
609 |
|
public void testWriteTryLockWhenReadLockedFair() throws InterruptedException { |
610 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
611 |
|
lock.readLock().lock(); |
612 |
< |
Thread t = new Thread(new CheckedRunnable() { |
612 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
613 |
|
public void realRun() { |
614 |
|
assertFalse(lock.writeLock().tryLock()); |
615 |
|
}}); |
616 |
|
|
617 |
< |
t.start(); |
657 |
< |
t.join(); |
617 |
> |
awaitTermination(t, LONG_DELAY_MS); |
618 |
|
lock.readLock().unlock(); |
619 |
|
} |
620 |
|
|
626 |
|
public void testWriteTryLock_Timeout() throws InterruptedException { |
627 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
628 |
|
lock.writeLock().lock(); |
629 |
< |
Thread t = new Thread(new CheckedRunnable() { |
629 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
630 |
|
public void realRun() throws InterruptedException { |
631 |
|
assertFalse(lock.writeLock().tryLock(1, MILLISECONDS)); |
632 |
|
}}); |
633 |
|
|
634 |
< |
t.start(); |
675 |
< |
t.join(); |
634 |
> |
awaitTermination(t, LONG_DELAY_MS); |
635 |
|
assertTrue(lock.writeLock().isHeldByCurrentThread()); |
636 |
|
lock.writeLock().unlock(); |
637 |
|
} |
642 |
|
public void testReadTryLock_Timeout() throws InterruptedException { |
643 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
644 |
|
lock.writeLock().lock(); |
645 |
< |
Thread t = new Thread(new CheckedRunnable() { |
645 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
646 |
|
public void realRun() throws InterruptedException { |
647 |
|
assertFalse(lock.readLock().tryLock(1, MILLISECONDS)); |
648 |
|
}}); |
649 |
|
|
650 |
< |
t.start(); |
692 |
< |
t.join(); |
650 |
> |
awaitTermination(t, LONG_DELAY_MS); |
651 |
|
assertTrue(lock.writeLock().isHeldByCurrentThread()); |
652 |
|
lock.writeLock().unlock(); |
653 |
|
} |
659 |
|
public void testWriteLockInterruptibly() throws InterruptedException { |
660 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
661 |
|
lock.writeLock().lockInterruptibly(); |
662 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
662 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
663 |
|
public void realRun() throws InterruptedException { |
664 |
|
lock.writeLock().lockInterruptibly(); |
665 |
|
}}); |
666 |
|
|
709 |
– |
t.start(); |
667 |
|
Thread.sleep(SHORT_DELAY_MS); |
668 |
|
t.interrupt(); |
669 |
< |
Thread.sleep(SHORT_DELAY_MS); |
670 |
< |
t.join(); |
714 |
< |
lock.writeLock().unlock(); |
669 |
> |
awaitTermination(t, LONG_DELAY_MS); |
670 |
> |
releaseLock(lock.writeLock()); |
671 |
|
} |
672 |
|
|
673 |
|
/** |
674 |
< |
* read lockInterruptibly succeeds if lock free else is interruptible |
674 |
> |
* read lockInterruptibly succeeds if lock free else is interruptible |
675 |
|
*/ |
676 |
|
public void testReadLockInterruptibly() throws InterruptedException { |
677 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
678 |
|
lock.writeLock().lockInterruptibly(); |
679 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
679 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
680 |
|
public void realRun() throws InterruptedException { |
681 |
|
lock.readLock().lockInterruptibly(); |
682 |
|
}}); |
683 |
|
|
728 |
– |
t.start(); |
684 |
|
Thread.sleep(SHORT_DELAY_MS); |
685 |
|
t.interrupt(); |
686 |
< |
t.join(); |
687 |
< |
lock.writeLock().unlock(); |
686 |
> |
awaitTermination(t, LONG_DELAY_MS); |
687 |
> |
releaseLock(lock.writeLock()); |
688 |
|
} |
689 |
|
|
690 |
|
/** |
726 |
|
|
727 |
|
|
728 |
|
/** |
729 |
< |
* timed await without a signal times out |
729 |
> |
* timed await without a signal times out |
730 |
|
*/ |
731 |
|
public void testAwait_Timeout() throws InterruptedException { |
732 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
754 |
|
public void testAwait() throws InterruptedException { |
755 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
756 |
|
final Condition c = lock.writeLock().newCondition(); |
757 |
< |
Thread t = new Thread(new CheckedRunnable() { |
757 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
758 |
|
public void realRun() throws InterruptedException { |
759 |
|
lock.writeLock().lock(); |
760 |
|
c.await(); |
761 |
|
lock.writeLock().unlock(); |
762 |
|
}}); |
763 |
|
|
809 |
– |
t.start(); |
764 |
|
Thread.sleep(SHORT_DELAY_MS); |
765 |
|
lock.writeLock().lock(); |
766 |
|
c.signal(); |
767 |
|
lock.writeLock().unlock(); |
768 |
< |
t.join(SHORT_DELAY_MS); |
815 |
< |
assertFalse(t.isAlive()); |
768 |
> |
awaitTermination(t, LONG_DELAY_MS); |
769 |
|
} |
770 |
|
|
771 |
|
/** A helper class for uninterruptible wait tests */ |
818 |
|
lock.writeLock().unlock(); |
819 |
|
} |
820 |
|
|
821 |
< |
thread.join(); |
821 |
> |
awaitTermination(thread, LONG_DELAY_MS); |
822 |
|
assertTrue(thread.interrupted); |
870 |
– |
assertFalse(thread.isAlive()); |
823 |
|
} |
824 |
|
|
825 |
|
/** |
828 |
|
public void testAwait_Interrupt() throws InterruptedException { |
829 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
830 |
|
final Condition c = lock.writeLock().newCondition(); |
831 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
831 |
> |
final CountDownLatch locked = new CountDownLatch(1); |
832 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
833 |
|
public void realRun() throws InterruptedException { |
834 |
|
lock.writeLock().lock(); |
835 |
< |
c.await(); |
836 |
< |
lock.writeLock().unlock(); |
835 |
> |
assertTrue(lock.isWriteLocked()); |
836 |
> |
locked.countDown(); |
837 |
> |
try { c.await(); } |
838 |
> |
finally { lock.writeLock().unlock(); } |
839 |
|
}}); |
840 |
|
|
841 |
< |
t.start(); |
842 |
< |
Thread.sleep(SHORT_DELAY_MS); |
841 |
> |
locked.await(); |
842 |
> |
while (lock.isWriteLocked()) |
843 |
> |
Thread.yield(); |
844 |
|
t.interrupt(); |
845 |
< |
t.join(SHORT_DELAY_MS); |
846 |
< |
assertFalse(t.isAlive()); |
845 |
> |
awaitTermination(t, LONG_DELAY_MS); |
846 |
> |
assertFalse(lock.isWriteLocked()); |
847 |
|
} |
848 |
|
|
849 |
|
/** |
852 |
|
public void testAwaitNanos_Interrupt() throws InterruptedException { |
853 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
854 |
|
final Condition c = lock.writeLock().newCondition(); |
855 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
855 |
> |
final CountDownLatch locked = new CountDownLatch(1); |
856 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
857 |
|
public void realRun() throws InterruptedException { |
858 |
|
lock.writeLock().lock(); |
859 |
< |
c.awaitNanos(MILLISECONDS.toNanos(LONG_DELAY_MS)); |
860 |
< |
lock.writeLock().unlock(); |
859 |
> |
assertTrue(lock.isWriteLocked()); |
860 |
> |
locked.countDown(); |
861 |
> |
try { c.awaitNanos(MILLISECONDS.toNanos(LONG_DELAY_MS)); } |
862 |
> |
finally { lock.writeLock().unlock(); } |
863 |
|
}}); |
864 |
|
|
865 |
< |
t.start(); |
866 |
< |
Thread.sleep(SHORT_DELAY_MS); |
865 |
> |
locked.await(); |
866 |
> |
while (lock.isWriteLocked()) |
867 |
> |
Thread.yield(); |
868 |
|
t.interrupt(); |
869 |
< |
t.join(SHORT_DELAY_MS); |
870 |
< |
assertFalse(t.isAlive()); |
869 |
> |
awaitTermination(t, LONG_DELAY_MS); |
870 |
> |
assertFalse(lock.isWriteLocked()); |
871 |
|
} |
872 |
|
|
873 |
|
/** |
876 |
|
public void testAwaitUntil_Interrupt() throws InterruptedException { |
877 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
878 |
|
final Condition c = lock.writeLock().newCondition(); |
879 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
879 |
> |
final CountDownLatch locked = new CountDownLatch(1); |
880 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
881 |
|
public void realRun() throws InterruptedException { |
882 |
|
lock.writeLock().lock(); |
883 |
+ |
assertTrue(lock.isWriteLocked()); |
884 |
+ |
locked.countDown(); |
885 |
|
java.util.Date d = new java.util.Date(); |
886 |
< |
c.awaitUntil(new java.util.Date(d.getTime() + 10000)); |
887 |
< |
lock.writeLock().unlock(); |
886 |
> |
try { c.awaitUntil(new java.util.Date(d.getTime() + 10000)); } |
887 |
> |
finally { lock.writeLock().unlock(); } |
888 |
|
}}); |
889 |
|
|
890 |
< |
t.start(); |
891 |
< |
Thread.sleep(SHORT_DELAY_MS); |
890 |
> |
locked.await(); |
891 |
> |
while (lock.isWriteLocked()) |
892 |
> |
Thread.yield(); |
893 |
|
t.interrupt(); |
894 |
< |
t.join(SHORT_DELAY_MS); |
895 |
< |
assertFalse(t.isAlive()); |
894 |
> |
awaitTermination(t, LONG_DELAY_MS); |
895 |
> |
assertFalse(lock.isWriteLocked()); |
896 |
|
} |
897 |
|
|
898 |
|
/** |
901 |
|
public void testSignalAll() throws InterruptedException { |
902 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
903 |
|
final Condition c = lock.writeLock().newCondition(); |
904 |
< |
Thread t1 = new Thread(new CheckedRunnable() { |
904 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
905 |
|
public void realRun() throws InterruptedException { |
906 |
|
lock.writeLock().lock(); |
907 |
|
c.await(); |
908 |
|
lock.writeLock().unlock(); |
909 |
|
}}); |
910 |
|
|
911 |
< |
Thread t2 = new Thread(new CheckedRunnable() { |
911 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
912 |
|
public void realRun() throws InterruptedException { |
913 |
|
lock.writeLock().lock(); |
914 |
|
c.await(); |
915 |
|
lock.writeLock().unlock(); |
916 |
|
}}); |
917 |
|
|
954 |
– |
t1.start(); |
955 |
– |
t2.start(); |
918 |
|
Thread.sleep(SHORT_DELAY_MS); |
919 |
|
lock.writeLock().lock(); |
920 |
|
c.signalAll(); |
921 |
|
lock.writeLock().unlock(); |
922 |
< |
t1.join(SHORT_DELAY_MS); |
923 |
< |
t2.join(SHORT_DELAY_MS); |
962 |
< |
assertFalse(t1.isAlive()); |
963 |
< |
assertFalse(t2.isAlive()); |
922 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
923 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
924 |
|
} |
925 |
|
|
926 |
|
/** |
964 |
|
lock.writeLock().unlock(); |
965 |
|
Thread.sleep(SHORT_DELAY_MS); |
966 |
|
assertFalse(lock.hasQueuedThreads()); |
967 |
< |
t1.join(); |
968 |
< |
t2.join(); |
967 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
968 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
969 |
|
} |
970 |
|
|
971 |
|
/** |
1005 |
|
assertFalse(sync.hasQueuedThread(t1)); |
1006 |
|
Thread.sleep(SHORT_DELAY_MS); |
1007 |
|
assertFalse(sync.hasQueuedThread(t2)); |
1008 |
< |
t1.join(); |
1009 |
< |
t2.join(); |
1008 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
1009 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
1010 |
|
} |
1011 |
|
|
1012 |
|
|
1031 |
|
lock.writeLock().unlock(); |
1032 |
|
Thread.sleep(SHORT_DELAY_MS); |
1033 |
|
assertEquals(0, lock.getQueueLength()); |
1034 |
< |
t1.join(); |
1035 |
< |
t2.join(); |
1034 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
1035 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
1036 |
|
} |
1037 |
|
|
1038 |
|
/** |
1059 |
|
lock.writeLock().unlock(); |
1060 |
|
Thread.sleep(SHORT_DELAY_MS); |
1061 |
|
assertTrue(lock.getQueuedThreads().isEmpty()); |
1062 |
< |
t1.join(); |
1063 |
< |
t2.join(); |
1062 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
1063 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
1064 |
|
} |
1065 |
|
|
1066 |
|
/** |
1181 |
|
public void testHasWaiters() throws InterruptedException { |
1182 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1183 |
|
final Condition c = lock.writeLock().newCondition(); |
1184 |
< |
Thread t = new Thread(new CheckedRunnable() { |
1184 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
1185 |
|
public void realRun() throws InterruptedException { |
1186 |
|
lock.writeLock().lock(); |
1187 |
|
assertFalse(lock.hasWaiters(c)); |
1190 |
|
lock.writeLock().unlock(); |
1191 |
|
}}); |
1192 |
|
|
1233 |
– |
t.start(); |
1193 |
|
Thread.sleep(SHORT_DELAY_MS); |
1194 |
|
lock.writeLock().lock(); |
1195 |
|
assertTrue(lock.hasWaiters(c)); |
1201 |
|
assertFalse(lock.hasWaiters(c)); |
1202 |
|
assertEquals(0, lock.getWaitQueueLength(c)); |
1203 |
|
lock.writeLock().unlock(); |
1204 |
< |
t.join(SHORT_DELAY_MS); |
1246 |
< |
assertFalse(t.isAlive()); |
1204 |
> |
awaitTermination(t, LONG_DELAY_MS); |
1205 |
|
} |
1206 |
|
|
1207 |
|
/** |
1210 |
|
public void testGetWaitQueueLength() throws InterruptedException { |
1211 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1212 |
|
final Condition c = lock.writeLock().newCondition(); |
1213 |
< |
Thread t = new Thread(new CheckedRunnable() { |
1213 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
1214 |
|
public void realRun() throws InterruptedException { |
1215 |
|
lock.writeLock().lock(); |
1216 |
|
assertFalse(lock.hasWaiters(c)); |
1219 |
|
lock.writeLock().unlock(); |
1220 |
|
}}); |
1221 |
|
|
1264 |
– |
t.start(); |
1222 |
|
Thread.sleep(SHORT_DELAY_MS); |
1223 |
|
lock.writeLock().lock(); |
1224 |
|
assertTrue(lock.hasWaiters(c)); |
1230 |
|
assertFalse(lock.hasWaiters(c)); |
1231 |
|
assertEquals(0, lock.getWaitQueueLength(c)); |
1232 |
|
lock.writeLock().unlock(); |
1233 |
< |
t.join(SHORT_DELAY_MS); |
1277 |
< |
assertFalse(t.isAlive()); |
1233 |
> |
awaitTermination(t, LONG_DELAY_MS); |
1234 |
|
} |
1235 |
|
|
1236 |
|
|
1274 |
|
assertFalse(lock.hasWaiters(c)); |
1275 |
|
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
1276 |
|
lock.writeLock().unlock(); |
1277 |
< |
t1.join(SHORT_DELAY_MS); |
1278 |
< |
t2.join(SHORT_DELAY_MS); |
1323 |
< |
assertFalse(t1.isAlive()); |
1324 |
< |
assertFalse(t2.isAlive()); |
1277 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
1278 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
1279 |
|
} |
1280 |
|
|
1281 |
|
/** |