156 |
|
*/ |
157 |
|
public void testWriteLockInterruptibly_Interrupted() { |
158 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
159 |
– |
lock.writeLock().lock(); |
159 |
|
Thread t = new Thread(new Runnable() { |
160 |
|
public void run() { |
161 |
|
try { |
162 |
|
lock.writeLock().lockInterruptibly(); |
163 |
< |
threadShouldThrow(); |
163 |
> |
lock.writeLock().unlock(); |
164 |
> |
lock.writeLock().lockInterruptibly(); |
165 |
> |
lock.writeLock().unlock(); |
166 |
|
} catch(InterruptedException success){} |
167 |
|
} |
168 |
|
}); |
169 |
|
try { |
170 |
+ |
lock.writeLock().lock(); |
171 |
|
t.start(); |
172 |
|
t.interrupt(); |
173 |
|
lock.writeLock().unlock(); |
178 |
|
} |
179 |
|
|
180 |
|
/** |
181 |
< |
* timed write-trylock is interruptible |
181 |
> |
* timed write-tryLock is interruptible |
182 |
|
*/ |
183 |
|
public void testWriteTryLock_Interrupted() { |
184 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
187 |
|
public void run() { |
188 |
|
try { |
189 |
|
lock.writeLock().tryLock(1000,TimeUnit.MILLISECONDS); |
188 |
– |
threadShouldThrow(); |
190 |
|
} catch(InterruptedException success){} |
191 |
|
} |
192 |
|
}); |
210 |
|
public void run() { |
211 |
|
try { |
212 |
|
lock.readLock().lockInterruptibly(); |
212 |
– |
threadShouldThrow(); |
213 |
|
} catch(InterruptedException success){} |
214 |
|
} |
215 |
|
}); |
224 |
|
} |
225 |
|
|
226 |
|
/** |
227 |
< |
* timed read-trylock is interruptible |
227 |
> |
* timed read-tryLock is interruptible |
228 |
|
*/ |
229 |
|
public void testReadTryLock_Interrupted() { |
230 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
248 |
|
|
249 |
|
|
250 |
|
/** |
251 |
< |
* write-trylock fails if locked |
251 |
> |
* write-tryLock fails if locked |
252 |
|
*/ |
253 |
|
public void testWriteTryLockWhenLocked() { |
254 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
268 |
|
} |
269 |
|
|
270 |
|
/** |
271 |
< |
* read-trylock fails if locked |
271 |
> |
* read-tryLock fails if locked |
272 |
|
*/ |
273 |
|
public void testReadTryLockWhenLocked() { |
274 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
376 |
|
} |
377 |
|
} |
378 |
|
|
379 |
+ |
/** |
380 |
+ |
* Read trylock succeeds if write locked by current thread |
381 |
+ |
*/ |
382 |
+ |
public void testReadHoldingWriteLock() { |
383 |
+ |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
384 |
+ |
lock.writeLock().lock(); |
385 |
+ |
assertTrue(lock.readLock().tryLock()); |
386 |
+ |
lock.readLock().unlock(); |
387 |
+ |
lock.writeLock().unlock(); |
388 |
+ |
} |
389 |
|
|
390 |
|
/** |
391 |
< |
* Read trylock succeeds if readlocked but not writelocked |
391 |
> |
* Read lock succeeds if write locked by current thread even if |
392 |
> |
* other threads are waiting |
393 |
> |
*/ |
394 |
> |
public void testReadHoldingWriteLock2() { |
395 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
396 |
> |
lock.writeLock().lock(); |
397 |
> |
Thread t1 = new Thread(new Runnable() { |
398 |
> |
public void run() { |
399 |
> |
lock.readLock().lock(); |
400 |
> |
lock.readLock().unlock(); |
401 |
> |
} |
402 |
> |
}); |
403 |
> |
Thread t2 = new Thread(new Runnable() { |
404 |
> |
public void run() { |
405 |
> |
lock.readLock().lock(); |
406 |
> |
lock.readLock().unlock(); |
407 |
> |
} |
408 |
> |
}); |
409 |
> |
|
410 |
> |
try { |
411 |
> |
t1.start(); |
412 |
> |
t2.start(); |
413 |
> |
lock.readLock().lock(); |
414 |
> |
lock.readLock().unlock(); |
415 |
> |
Thread.sleep(SHORT_DELAY_MS); |
416 |
> |
lock.readLock().lock(); |
417 |
> |
lock.readLock().unlock(); |
418 |
> |
lock.writeLock().unlock(); |
419 |
> |
t1.join(MEDIUM_DELAY_MS); |
420 |
> |
t2.join(MEDIUM_DELAY_MS); |
421 |
> |
assertTrue(!t1.isAlive()); |
422 |
> |
assertTrue(!t2.isAlive()); |
423 |
> |
|
424 |
> |
} catch(Exception e){ |
425 |
> |
unexpectedException(); |
426 |
> |
} |
427 |
> |
} |
428 |
> |
|
429 |
> |
/** |
430 |
> |
* Fair Read trylock succeeds if write locked by current thread |
431 |
> |
*/ |
432 |
> |
public void testReadHoldingWriteLockFair() { |
433 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
434 |
> |
lock.writeLock().lock(); |
435 |
> |
assertTrue(lock.readLock().tryLock()); |
436 |
> |
lock.readLock().unlock(); |
437 |
> |
lock.writeLock().unlock(); |
438 |
> |
} |
439 |
> |
|
440 |
> |
/** |
441 |
> |
* Fair Read lock succeeds if write locked by current thread even if |
442 |
> |
* other threads are waiting |
443 |
> |
*/ |
444 |
> |
public void testReadHoldingWriteLockFair2() { |
445 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
446 |
> |
lock.writeLock().lock(); |
447 |
> |
Thread t1 = new Thread(new Runnable() { |
448 |
> |
public void run() { |
449 |
> |
lock.readLock().lock(); |
450 |
> |
lock.readLock().unlock(); |
451 |
> |
} |
452 |
> |
}); |
453 |
> |
Thread t2 = new Thread(new Runnable() { |
454 |
> |
public void run() { |
455 |
> |
lock.readLock().lock(); |
456 |
> |
lock.readLock().unlock(); |
457 |
> |
} |
458 |
> |
}); |
459 |
> |
|
460 |
> |
try { |
461 |
> |
t1.start(); |
462 |
> |
t2.start(); |
463 |
> |
lock.readLock().lock(); |
464 |
> |
lock.readLock().unlock(); |
465 |
> |
Thread.sleep(SHORT_DELAY_MS); |
466 |
> |
lock.readLock().lock(); |
467 |
> |
lock.readLock().unlock(); |
468 |
> |
lock.writeLock().unlock(); |
469 |
> |
t1.join(MEDIUM_DELAY_MS); |
470 |
> |
t2.join(MEDIUM_DELAY_MS); |
471 |
> |
assertTrue(!t1.isAlive()); |
472 |
> |
assertTrue(!t2.isAlive()); |
473 |
> |
|
474 |
> |
} catch(Exception e){ |
475 |
> |
unexpectedException(); |
476 |
> |
} |
477 |
> |
} |
478 |
> |
|
479 |
> |
|
480 |
> |
/** |
481 |
> |
* Read tryLock succeeds if readlocked but not writelocked |
482 |
|
*/ |
483 |
|
public void testTryLockWhenReadLocked() { |
484 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
501 |
|
|
502 |
|
|
503 |
|
/** |
504 |
< |
* write trylock fails when readlocked |
504 |
> |
* write tryLock fails when readlocked |
505 |
|
*/ |
506 |
|
public void testWriteTryLockWhenReadLocked() { |
507 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
523 |
|
|
524 |
|
|
525 |
|
/** |
526 |
< |
* write timed trylock times out if locked |
526 |
> |
* write timed tryLock times out if locked |
527 |
|
*/ |
528 |
|
public void testWriteTryLock_Timeout() { |
529 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
547 |
|
} |
548 |
|
|
549 |
|
/** |
550 |
< |
* read timed trylock times out if write-locked |
550 |
> |
* read timed tryLock times out if write-locked |
551 |
|
*/ |
552 |
|
public void testReadTryLock_Timeout() { |
553 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
691 |
|
final Condition c = lock.writeLock().newCondition(); |
692 |
|
try { |
693 |
|
lock.writeLock().lock(); |
594 |
– |
assertFalse(c.await(10, TimeUnit.MILLISECONDS)); |
694 |
|
lock.writeLock().unlock(); |
695 |
|
} |
696 |
|
catch (Exception ex) { |
707 |
|
try { |
708 |
|
lock.writeLock().lock(); |
709 |
|
java.util.Date d = new java.util.Date(); |
611 |
– |
assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10))); |
710 |
|
lock.writeLock().unlock(); |
711 |
|
} |
712 |
|
catch (Exception ex) { |
975 |
|
} |
976 |
|
|
977 |
|
/** |
978 |
+ |
* hasQueuedThread(null) throws NPE |
979 |
+ |
*/ |
980 |
+ |
public void testHasQueuedThreadNPE() { |
981 |
+ |
final ReentrantReadWriteLock sync = new ReentrantReadWriteLock(); |
982 |
+ |
try { |
983 |
+ |
sync.hasQueuedThread(null); |
984 |
+ |
shouldThrow(); |
985 |
+ |
} catch (NullPointerException success) { |
986 |
+ |
} |
987 |
+ |
} |
988 |
+ |
|
989 |
+ |
/** |
990 |
+ |
* hasQueuedThread reports whether a thread is queued. |
991 |
+ |
*/ |
992 |
+ |
public void testHasQueuedThread() { |
993 |
+ |
final ReentrantReadWriteLock sync = new ReentrantReadWriteLock(); |
994 |
+ |
Thread t1 = new Thread(new InterruptedLockRunnable(sync)); |
995 |
+ |
Thread t2 = new Thread(new InterruptibleLockRunnable(sync)); |
996 |
+ |
try { |
997 |
+ |
assertFalse(sync.hasQueuedThread(t1)); |
998 |
+ |
assertFalse(sync.hasQueuedThread(t2)); |
999 |
+ |
sync.writeLock().lock(); |
1000 |
+ |
t1.start(); |
1001 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1002 |
+ |
assertTrue(sync.hasQueuedThread(t1)); |
1003 |
+ |
t2.start(); |
1004 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1005 |
+ |
assertTrue(sync.hasQueuedThread(t1)); |
1006 |
+ |
assertTrue(sync.hasQueuedThread(t2)); |
1007 |
+ |
t1.interrupt(); |
1008 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1009 |
+ |
assertFalse(sync.hasQueuedThread(t1)); |
1010 |
+ |
assertTrue(sync.hasQueuedThread(t2)); |
1011 |
+ |
sync.writeLock().unlock(); |
1012 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1013 |
+ |
assertFalse(sync.hasQueuedThread(t1)); |
1014 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1015 |
+ |
assertFalse(sync.hasQueuedThread(t2)); |
1016 |
+ |
t1.join(); |
1017 |
+ |
t2.join(); |
1018 |
+ |
} catch(Exception e){ |
1019 |
+ |
unexpectedException(); |
1020 |
+ |
} |
1021 |
+ |
} |
1022 |
+ |
|
1023 |
+ |
|
1024 |
+ |
/** |
1025 |
|
* getQueueLength reports number of waiting threads |
1026 |
|
*/ |
1027 |
|
public void testGetQueueLength() { |
1083 |
|
} |
1084 |
|
|
1085 |
|
/** |
1086 |
+ |
* hasWaiters throws NPE if null |
1087 |
+ |
*/ |
1088 |
+ |
public void testHasWaitersNPE() { |
1089 |
+ |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1090 |
+ |
try { |
1091 |
+ |
lock.hasWaiters(null); |
1092 |
+ |
shouldThrow(); |
1093 |
+ |
} catch (NullPointerException success) { |
1094 |
+ |
} catch (Exception ex) { |
1095 |
+ |
unexpectedException(); |
1096 |
+ |
} |
1097 |
+ |
} |
1098 |
+ |
|
1099 |
+ |
/** |
1100 |
+ |
* getWaitQueueLength throws NPE if null |
1101 |
+ |
*/ |
1102 |
+ |
public void testGetWaitQueueLengthNPE() { |
1103 |
+ |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1104 |
+ |
try { |
1105 |
+ |
lock.getWaitQueueLength(null); |
1106 |
+ |
shouldThrow(); |
1107 |
+ |
} catch (NullPointerException success) { |
1108 |
+ |
} catch (Exception ex) { |
1109 |
+ |
unexpectedException(); |
1110 |
+ |
} |
1111 |
+ |
} |
1112 |
+ |
|
1113 |
+ |
|
1114 |
+ |
/** |
1115 |
+ |
* getWaitingThreads throws NPE if null |
1116 |
+ |
*/ |
1117 |
+ |
public void testGetWaitingThreadsNPE() { |
1118 |
+ |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1119 |
+ |
try { |
1120 |
+ |
lock.getWaitingThreads(null); |
1121 |
+ |
shouldThrow(); |
1122 |
+ |
} catch (NullPointerException success) { |
1123 |
+ |
} catch (Exception ex) { |
1124 |
+ |
unexpectedException(); |
1125 |
+ |
} |
1126 |
+ |
} |
1127 |
+ |
|
1128 |
+ |
/** |
1129 |
|
* hasWaiters throws IAE if not owned |
1130 |
|
*/ |
1131 |
|
public void testHasWaitersIAE() { |
1369 |
|
} |
1370 |
|
} |
1371 |
|
|
1372 |
+ |
/** |
1373 |
+ |
* toString indicates current lock state |
1374 |
+ |
*/ |
1375 |
+ |
public void testToString() { |
1376 |
+ |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1377 |
+ |
String us = lock.toString(); |
1378 |
+ |
assertTrue(us.indexOf("Write locks = 0") >= 0); |
1379 |
+ |
assertTrue(us.indexOf("Read locks = 0") >= 0); |
1380 |
+ |
lock.writeLock().lock(); |
1381 |
+ |
String ws = lock.toString(); |
1382 |
+ |
assertTrue(ws.indexOf("Write locks = 1") >= 0); |
1383 |
+ |
assertTrue(ws.indexOf("Read locks = 0") >= 0); |
1384 |
+ |
lock.writeLock().unlock(); |
1385 |
+ |
lock.readLock().lock(); |
1386 |
+ |
lock.readLock().lock(); |
1387 |
+ |
String rs = lock.toString(); |
1388 |
+ |
assertTrue(rs.indexOf("Write locks = 0") >= 0); |
1389 |
+ |
assertTrue(rs.indexOf("Read locks = 2") >= 0); |
1390 |
+ |
} |
1391 |
+ |
|
1392 |
+ |
/** |
1393 |
+ |
* readLock.toString indicates current lock state |
1394 |
+ |
*/ |
1395 |
+ |
public void testReadLockToString() { |
1396 |
+ |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1397 |
+ |
String us = lock.readLock().toString(); |
1398 |
+ |
assertTrue(us.indexOf("Read locks = 0") >= 0); |
1399 |
+ |
lock.readLock().lock(); |
1400 |
+ |
lock.readLock().lock(); |
1401 |
+ |
String rs = lock.readLock().toString(); |
1402 |
+ |
assertTrue(rs.indexOf("Read locks = 2") >= 0); |
1403 |
+ |
} |
1404 |
+ |
|
1405 |
+ |
/** |
1406 |
+ |
* writeLock.toString indicates current lock state |
1407 |
+ |
*/ |
1408 |
+ |
public void testWriteLockToString() { |
1409 |
+ |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1410 |
+ |
String us = lock.writeLock().toString(); |
1411 |
+ |
assertTrue(us.indexOf("Unlocked") >= 0); |
1412 |
+ |
lock.writeLock().lock(); |
1413 |
+ |
String ls = lock.writeLock().toString(); |
1414 |
+ |
assertTrue(ls.indexOf("Locked") >= 0); |
1415 |
+ |
} |
1416 |
+ |
|
1417 |
|
} |