22 |
|
} |
23 |
|
|
24 |
|
/** |
25 |
< |
* A simple mutex class, from the AbstractQueuedSynchronizer |
26 |
< |
* javadoc. All tests exercise this as a sample user extension. |
27 |
< |
* Other methods/features of AbstractQueuedSynchronizerTest are |
28 |
< |
* tested implicitly in ReentrantLock, ReentrantReadWriteLock, and |
29 |
< |
* Semaphore test classes |
30 |
< |
*/ |
31 |
< |
static class Mutex implements Lock, java.io.Serializable { |
32 |
< |
private static class Sync extends AbstractQueuedSynchronizer { |
33 |
< |
boolean isLocked() { return getState() == 1; } |
34 |
< |
|
35 |
< |
public boolean tryAcquireExclusive(boolean isQueued, int acquires) { |
36 |
< |
assert acquires == 1; // Does not use multiple acquires |
37 |
< |
return compareAndSetState(0, 1); |
38 |
< |
} |
39 |
< |
|
40 |
< |
public boolean tryReleaseExclusive(int releases) { |
41 |
< |
setState(0); |
42 |
< |
return true; |
43 |
< |
} |
44 |
< |
|
45 |
< |
public void checkConditionAccess(Thread thread, boolean waiting) { |
46 |
< |
if (getState() == 0) throw new IllegalMonitorStateException(); |
47 |
< |
} |
48 |
< |
|
49 |
< |
Condition newCondition() { return new ConditionObject(); } |
50 |
< |
|
51 |
< |
private void readObject(ObjectInputStream s) throws IOException, ClassNotFoundException { |
52 |
< |
s.defaultReadObject(); |
53 |
< |
setState(0); // reset to unlocked state |
54 |
< |
} |
55 |
< |
} |
56 |
< |
|
57 |
< |
private final Sync sync = new Sync(); |
58 |
< |
public boolean tryLock() { |
59 |
< |
return sync.tryAcquireExclusive(false, 1); |
60 |
< |
} |
61 |
< |
public void lock() { |
62 |
< |
sync.acquireExclusiveUninterruptibly(1); |
63 |
< |
} |
64 |
< |
public void lockInterruptibly() throws InterruptedException { |
65 |
< |
sync.acquireExclusiveInterruptibly(1); |
66 |
< |
} |
67 |
< |
public boolean tryLock(long timeout, TimeUnit unit) throws InterruptedException { |
68 |
< |
return sync.acquireExclusiveTimed(1, unit.toNanos(timeout)); |
69 |
< |
} |
70 |
< |
public void unlock() { sync.releaseExclusive(1); } |
71 |
< |
public Condition newCondition() { return sync.newCondition(); } |
72 |
< |
public boolean isLocked() { return sync.isLocked(); } |
73 |
< |
public boolean hasQueuedThreads() { return sync.hasQueuedThreads(); } |
25 |
> |
* A simple mutex class, adapted from the |
26 |
> |
* AbstractQueuedSynchronizer javadoc. Exclusive acquire tests |
27 |
> |
* exercise this as a sample user extension. Other |
28 |
> |
* methods/features of AbstractQueuedSynchronizerTest are tested |
29 |
> |
* via other test classes, including those for ReentrantLock, |
30 |
> |
* ReentrantReadWriteLock, and Semaphore |
31 |
> |
*/ |
32 |
> |
static class Mutex extends AbstractQueuedSynchronizer { |
33 |
> |
public boolean isHeldExclusively() { return getState() == 1; } |
34 |
> |
|
35 |
> |
public boolean tryAcquire(int acquires) { |
36 |
> |
assertTrue(acquires == 1); |
37 |
> |
return compareAndSetState(0, 1); |
38 |
> |
} |
39 |
> |
|
40 |
> |
public boolean tryRelease(int releases) { |
41 |
> |
if (getState() == 0) throw new IllegalMonitorStateException(); |
42 |
> |
setState(0); |
43 |
> |
return true; |
44 |
> |
} |
45 |
> |
|
46 |
> |
public AbstractQueuedSynchronizer.ConditionObject newCondition() { return new AbstractQueuedSynchronizer.ConditionObject(); } |
47 |
> |
|
48 |
|
} |
49 |
|
|
50 |
+ |
|
51 |
|
/** |
52 |
< |
* A runnable calling lockInterruptibly |
53 |
< |
*/ |
54 |
< |
class InterruptibleLockRunnable implements Runnable { |
55 |
< |
final Mutex lock; |
56 |
< |
InterruptibleLockRunnable(Mutex l) { lock = l; } |
52 |
> |
* A simple latch class, to test shared mode. |
53 |
> |
*/ |
54 |
> |
static class BooleanLatch extends AbstractQueuedSynchronizer { |
55 |
> |
public boolean isSignalled() { return getState() != 0; } |
56 |
> |
|
57 |
> |
public int tryAcquireShared(int ignore) { |
58 |
> |
return isSignalled()? 1 : -1; |
59 |
> |
} |
60 |
> |
|
61 |
> |
public boolean tryReleaseShared(int ignore) { |
62 |
> |
setState(1); |
63 |
> |
return true; |
64 |
> |
} |
65 |
> |
} |
66 |
> |
|
67 |
> |
/** |
68 |
> |
* A runnable calling acquireInterruptibly |
69 |
> |
*/ |
70 |
> |
class InterruptibleSyncRunnable implements Runnable { |
71 |
> |
final Mutex sync; |
72 |
> |
InterruptibleSyncRunnable(Mutex l) { sync = l; } |
73 |
|
public void run() { |
74 |
|
try { |
75 |
< |
lock.lockInterruptibly(); |
75 |
> |
sync.acquireInterruptibly(1); |
76 |
|
} catch(InterruptedException success){} |
77 |
|
} |
78 |
|
} |
79 |
|
|
80 |
|
|
81 |
|
/** |
82 |
< |
* A runnable calling lockInterruptibly that expects to be |
82 |
> |
* A runnable calling acquireInterruptibly that expects to be |
83 |
|
* interrupted |
84 |
|
*/ |
85 |
< |
class InterruptedLockRunnable implements Runnable { |
86 |
< |
final Mutex lock; |
87 |
< |
InterruptedLockRunnable(Mutex l) { lock = l; } |
85 |
> |
class InterruptedSyncRunnable implements Runnable { |
86 |
> |
final Mutex sync; |
87 |
> |
InterruptedSyncRunnable(Mutex l) { sync = l; } |
88 |
|
public void run() { |
89 |
|
try { |
90 |
< |
lock.lockInterruptibly(); |
90 |
> |
sync.acquireInterruptibly(1); |
91 |
|
threadShouldThrow(); |
92 |
|
} catch(InterruptedException success){} |
93 |
|
} |
94 |
|
} |
95 |
+ |
|
96 |
+ |
/** |
97 |
+ |
* isHeldExclusively is false upon construction |
98 |
+ |
*/ |
99 |
+ |
public void testIsHeldExclusively() { |
100 |
+ |
Mutex rl = new Mutex(); |
101 |
+ |
assertFalse(rl.isHeldExclusively()); |
102 |
+ |
} |
103 |
|
|
104 |
|
/** |
105 |
< |
* locking an unlocked lock succeeds |
105 |
> |
* acquiring released sync succeeds |
106 |
|
*/ |
107 |
< |
public void testLock() { |
107 |
> |
public void testAcquire() { |
108 |
|
Mutex rl = new Mutex(); |
109 |
< |
rl.lock(); |
110 |
< |
assertTrue(rl.isLocked()); |
111 |
< |
rl.unlock(); |
109 |
> |
rl.acquire(1); |
110 |
> |
assertTrue(rl.isHeldExclusively()); |
111 |
> |
rl.release(1); |
112 |
> |
assertFalse(rl.isHeldExclusively()); |
113 |
|
} |
114 |
|
|
115 |
|
/** |
116 |
< |
* tryLock on an unlocked lock succeeds |
116 |
> |
* tryAcquire on an released sync succeeds |
117 |
|
*/ |
118 |
< |
public void testTryLock() { |
118 |
> |
public void testTryAcquire() { |
119 |
|
Mutex rl = new Mutex(); |
120 |
< |
assertTrue(rl.tryLock()); |
121 |
< |
assertTrue(rl.isLocked()); |
122 |
< |
rl.unlock(); |
120 |
> |
assertTrue(rl.tryAcquire(1)); |
121 |
> |
assertTrue(rl.isHeldExclusively()); |
122 |
> |
rl.release(1); |
123 |
|
} |
124 |
|
|
125 |
|
/** |
126 |
|
* hasQueuedThreads reports whether there are waiting threads |
127 |
|
*/ |
128 |
|
public void testhasQueuedThreads() { |
129 |
< |
final Mutex lock = new Mutex(); |
130 |
< |
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
131 |
< |
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
129 |
> |
final Mutex sync = new Mutex(); |
130 |
> |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
131 |
> |
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
132 |
> |
try { |
133 |
> |
assertFalse(sync.hasQueuedThreads()); |
134 |
> |
sync.acquire(1); |
135 |
> |
t1.start(); |
136 |
> |
Thread.sleep(SHORT_DELAY_MS); |
137 |
> |
assertTrue(sync.hasQueuedThreads()); |
138 |
> |
t2.start(); |
139 |
> |
Thread.sleep(SHORT_DELAY_MS); |
140 |
> |
assertTrue(sync.hasQueuedThreads()); |
141 |
> |
t1.interrupt(); |
142 |
> |
Thread.sleep(SHORT_DELAY_MS); |
143 |
> |
assertTrue(sync.hasQueuedThreads()); |
144 |
> |
sync.release(1); |
145 |
> |
Thread.sleep(SHORT_DELAY_MS); |
146 |
> |
assertFalse(sync.hasQueuedThreads()); |
147 |
> |
t1.join(); |
148 |
> |
t2.join(); |
149 |
> |
} catch(Exception e){ |
150 |
> |
unexpectedException(); |
151 |
> |
} |
152 |
> |
} |
153 |
> |
|
154 |
> |
/** |
155 |
> |
* isQueued(null) throws NPE |
156 |
> |
*/ |
157 |
> |
public void testIsQueuedNPE() { |
158 |
> |
final Mutex sync = new Mutex(); |
159 |
> |
try { |
160 |
> |
sync.isQueued(null); |
161 |
> |
shouldThrow(); |
162 |
> |
} catch (NullPointerException success) { |
163 |
> |
} |
164 |
> |
} |
165 |
> |
|
166 |
> |
/** |
167 |
> |
* isQueued reports whether a thread is queued. |
168 |
> |
*/ |
169 |
> |
public void testIsQueued() { |
170 |
> |
final Mutex sync = new Mutex(); |
171 |
> |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
172 |
> |
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
173 |
> |
try { |
174 |
> |
assertFalse(sync.isQueued(t1)); |
175 |
> |
assertFalse(sync.isQueued(t2)); |
176 |
> |
sync.acquire(1); |
177 |
> |
t1.start(); |
178 |
> |
Thread.sleep(SHORT_DELAY_MS); |
179 |
> |
assertTrue(sync.isQueued(t1)); |
180 |
> |
t2.start(); |
181 |
> |
Thread.sleep(SHORT_DELAY_MS); |
182 |
> |
assertTrue(sync.isQueued(t1)); |
183 |
> |
assertTrue(sync.isQueued(t2)); |
184 |
> |
t1.interrupt(); |
185 |
> |
Thread.sleep(SHORT_DELAY_MS); |
186 |
> |
assertFalse(sync.isQueued(t1)); |
187 |
> |
assertTrue(sync.isQueued(t2)); |
188 |
> |
sync.release(1); |
189 |
> |
Thread.sleep(SHORT_DELAY_MS); |
190 |
> |
assertFalse(sync.isQueued(t1)); |
191 |
> |
Thread.sleep(SHORT_DELAY_MS); |
192 |
> |
assertFalse(sync.isQueued(t2)); |
193 |
> |
t1.join(); |
194 |
> |
t2.join(); |
195 |
> |
} catch(Exception e){ |
196 |
> |
unexpectedException(); |
197 |
> |
} |
198 |
> |
} |
199 |
> |
|
200 |
> |
/** |
201 |
> |
* getFirstQueuedThread returns first waiting thread or null if none |
202 |
> |
*/ |
203 |
> |
public void testGetFirstQueuedThread() { |
204 |
> |
final Mutex sync = new Mutex(); |
205 |
> |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
206 |
> |
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
207 |
> |
try { |
208 |
> |
assertNull(sync.getFirstQueuedThread()); |
209 |
> |
sync.acquire(1); |
210 |
> |
t1.start(); |
211 |
> |
Thread.sleep(SHORT_DELAY_MS); |
212 |
> |
assertEquals(t1, sync.getFirstQueuedThread()); |
213 |
> |
t2.start(); |
214 |
> |
Thread.sleep(SHORT_DELAY_MS); |
215 |
> |
assertEquals(t1, sync.getFirstQueuedThread()); |
216 |
> |
t1.interrupt(); |
217 |
> |
Thread.sleep(SHORT_DELAY_MS); |
218 |
> |
Thread.sleep(SHORT_DELAY_MS); |
219 |
> |
assertEquals(t2, sync.getFirstQueuedThread()); |
220 |
> |
sync.release(1); |
221 |
> |
Thread.sleep(SHORT_DELAY_MS); |
222 |
> |
assertNull(sync.getFirstQueuedThread()); |
223 |
> |
t1.join(); |
224 |
> |
t2.join(); |
225 |
> |
} catch(Exception e){ |
226 |
> |
unexpectedException(); |
227 |
> |
} |
228 |
> |
} |
229 |
> |
|
230 |
> |
|
231 |
> |
/** |
232 |
> |
* hasContended reports false if no thread has ever blocked, else true |
233 |
> |
*/ |
234 |
> |
public void testHasContended() { |
235 |
> |
final Mutex sync = new Mutex(); |
236 |
> |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
237 |
> |
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
238 |
> |
try { |
239 |
> |
assertFalse(sync.hasContended()); |
240 |
> |
sync.acquire(1); |
241 |
> |
t1.start(); |
242 |
> |
Thread.sleep(SHORT_DELAY_MS); |
243 |
> |
assertTrue(sync.hasContended()); |
244 |
> |
t2.start(); |
245 |
> |
Thread.sleep(SHORT_DELAY_MS); |
246 |
> |
assertTrue(sync.hasContended()); |
247 |
> |
t1.interrupt(); |
248 |
> |
Thread.sleep(SHORT_DELAY_MS); |
249 |
> |
assertTrue(sync.hasContended()); |
250 |
> |
sync.release(1); |
251 |
> |
Thread.sleep(SHORT_DELAY_MS); |
252 |
> |
assertTrue(sync.hasContended()); |
253 |
> |
t1.join(); |
254 |
> |
t2.join(); |
255 |
> |
} catch(Exception e){ |
256 |
> |
unexpectedException(); |
257 |
> |
} |
258 |
> |
} |
259 |
> |
|
260 |
> |
/** |
261 |
> |
* getQueuedThreads includes waiting threads |
262 |
> |
*/ |
263 |
> |
public void testGetQueuedThreads() { |
264 |
> |
final Mutex sync = new Mutex(); |
265 |
> |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
266 |
> |
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
267 |
> |
try { |
268 |
> |
assertTrue(sync.getQueuedThreads().isEmpty()); |
269 |
> |
sync.acquire(1); |
270 |
> |
assertTrue(sync.getQueuedThreads().isEmpty()); |
271 |
> |
t1.start(); |
272 |
> |
Thread.sleep(SHORT_DELAY_MS); |
273 |
> |
assertTrue(sync.getQueuedThreads().contains(t1)); |
274 |
> |
t2.start(); |
275 |
> |
Thread.sleep(SHORT_DELAY_MS); |
276 |
> |
assertTrue(sync.getQueuedThreads().contains(t1)); |
277 |
> |
assertTrue(sync.getQueuedThreads().contains(t2)); |
278 |
> |
t1.interrupt(); |
279 |
> |
Thread.sleep(SHORT_DELAY_MS); |
280 |
> |
assertFalse(sync.getQueuedThreads().contains(t1)); |
281 |
> |
assertTrue(sync.getQueuedThreads().contains(t2)); |
282 |
> |
sync.release(1); |
283 |
> |
Thread.sleep(SHORT_DELAY_MS); |
284 |
> |
assertTrue(sync.getQueuedThreads().isEmpty()); |
285 |
> |
t1.join(); |
286 |
> |
t2.join(); |
287 |
> |
} catch(Exception e){ |
288 |
> |
unexpectedException(); |
289 |
> |
} |
290 |
> |
} |
291 |
> |
|
292 |
> |
/** |
293 |
> |
* getExclusiveQueuedThreads includes waiting threads |
294 |
> |
*/ |
295 |
> |
public void testGetExclusiveQueuedThreads() { |
296 |
> |
final Mutex sync = new Mutex(); |
297 |
> |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
298 |
> |
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
299 |
|
try { |
300 |
< |
assertFalse(lock.hasQueuedThreads()); |
301 |
< |
lock.lock(); |
300 |
> |
assertTrue(sync.getExclusiveQueuedThreads().isEmpty()); |
301 |
> |
sync.acquire(1); |
302 |
> |
assertTrue(sync.getExclusiveQueuedThreads().isEmpty()); |
303 |
|
t1.start(); |
304 |
|
Thread.sleep(SHORT_DELAY_MS); |
305 |
< |
assertTrue(lock.hasQueuedThreads()); |
305 |
> |
assertTrue(sync.getExclusiveQueuedThreads().contains(t1)); |
306 |
|
t2.start(); |
307 |
|
Thread.sleep(SHORT_DELAY_MS); |
308 |
< |
assertTrue(lock.hasQueuedThreads()); |
308 |
> |
assertTrue(sync.getExclusiveQueuedThreads().contains(t1)); |
309 |
> |
assertTrue(sync.getExclusiveQueuedThreads().contains(t2)); |
310 |
|
t1.interrupt(); |
311 |
|
Thread.sleep(SHORT_DELAY_MS); |
312 |
< |
assertTrue(lock.hasQueuedThreads()); |
313 |
< |
lock.unlock(); |
312 |
> |
assertFalse(sync.getExclusiveQueuedThreads().contains(t1)); |
313 |
> |
assertTrue(sync.getExclusiveQueuedThreads().contains(t2)); |
314 |
> |
sync.release(1); |
315 |
|
Thread.sleep(SHORT_DELAY_MS); |
316 |
< |
assertFalse(lock.hasQueuedThreads()); |
316 |
> |
assertTrue(sync.getExclusiveQueuedThreads().isEmpty()); |
317 |
|
t1.join(); |
318 |
|
t2.join(); |
319 |
|
} catch(Exception e){ |
322 |
|
} |
323 |
|
|
324 |
|
/** |
325 |
< |
* timed tryLock is interruptible. |
325 |
> |
* getSharedQueuedThreads does not include exclusively waiting threads |
326 |
> |
*/ |
327 |
> |
public void testGetSharedQueuedThreads() { |
328 |
> |
final Mutex sync = new Mutex(); |
329 |
> |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
330 |
> |
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
331 |
> |
try { |
332 |
> |
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
333 |
> |
sync.acquire(1); |
334 |
> |
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
335 |
> |
t1.start(); |
336 |
> |
Thread.sleep(SHORT_DELAY_MS); |
337 |
> |
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
338 |
> |
t2.start(); |
339 |
> |
Thread.sleep(SHORT_DELAY_MS); |
340 |
> |
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
341 |
> |
t1.interrupt(); |
342 |
> |
Thread.sleep(SHORT_DELAY_MS); |
343 |
> |
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
344 |
> |
sync.release(1); |
345 |
> |
Thread.sleep(SHORT_DELAY_MS); |
346 |
> |
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
347 |
> |
t1.join(); |
348 |
> |
t2.join(); |
349 |
> |
} catch(Exception e){ |
350 |
> |
unexpectedException(); |
351 |
> |
} |
352 |
> |
} |
353 |
> |
|
354 |
> |
/** |
355 |
> |
* tryAcquireNanos is interruptible. |
356 |
|
*/ |
357 |
|
public void testInterruptedException2() { |
358 |
< |
final Mutex lock = new Mutex(); |
359 |
< |
lock.lock(); |
358 |
> |
final Mutex sync = new Mutex(); |
359 |
> |
sync.acquire(1); |
360 |
|
Thread t = new Thread(new Runnable() { |
361 |
|
public void run() { |
362 |
|
try { |
363 |
< |
lock.tryLock(MEDIUM_DELAY_MS,TimeUnit.MILLISECONDS); |
363 |
> |
sync.tryAcquireNanos(1, MEDIUM_DELAY_MS * 1000 * 1000); |
364 |
|
threadShouldThrow(); |
365 |
|
} catch(InterruptedException success){} |
366 |
|
} |
375 |
|
|
376 |
|
|
377 |
|
/** |
378 |
< |
* TryLock on a locked lock fails |
378 |
> |
* TryAcquire on exclusively held sync fails |
379 |
|
*/ |
380 |
< |
public void testTryLockWhenLocked() { |
381 |
< |
final Mutex lock = new Mutex(); |
382 |
< |
lock.lock(); |
380 |
> |
public void testTryAcquireWhenSynced() { |
381 |
> |
final Mutex sync = new Mutex(); |
382 |
> |
sync.acquire(1); |
383 |
|
Thread t = new Thread(new Runnable() { |
384 |
|
public void run() { |
385 |
< |
threadAssertFalse(lock.tryLock()); |
385 |
> |
threadAssertFalse(sync.tryAcquire(1)); |
386 |
|
} |
387 |
|
}); |
388 |
|
try { |
389 |
|
t.start(); |
390 |
|
t.join(); |
391 |
< |
lock.unlock(); |
391 |
> |
sync.release(1); |
392 |
|
} catch(Exception e){ |
393 |
|
unexpectedException(); |
394 |
|
} |
395 |
|
} |
396 |
|
|
397 |
|
/** |
398 |
< |
* Timed tryLock on a locked lock times out |
398 |
> |
* tryAcquireNanos on an exclusively held sync times out |
399 |
|
*/ |
400 |
< |
public void testTryLock_Timeout() { |
401 |
< |
final Mutex lock = new Mutex(); |
402 |
< |
lock.lock(); |
400 |
> |
public void testAcquireNanos_Timeout() { |
401 |
> |
final Mutex sync = new Mutex(); |
402 |
> |
sync.acquire(1); |
403 |
|
Thread t = new Thread(new Runnable() { |
404 |
|
public void run() { |
405 |
|
try { |
406 |
< |
threadAssertFalse(lock.tryLock(1, TimeUnit.MILLISECONDS)); |
406 |
> |
threadAssertFalse(sync.tryAcquireNanos(1, 1000 * 1000)); |
407 |
|
} catch (Exception ex) { |
408 |
|
threadUnexpectedException(); |
409 |
|
} |
412 |
|
try { |
413 |
|
t.start(); |
414 |
|
t.join(); |
415 |
< |
lock.unlock(); |
415 |
> |
sync.release(1); |
416 |
|
} catch(Exception e){ |
417 |
|
unexpectedException(); |
418 |
|
} |
420 |
|
|
421 |
|
|
422 |
|
/** |
423 |
< |
* isLocked is true when locked and false when not |
423 |
> |
* getState is true when acquired and false when not |
424 |
|
*/ |
425 |
< |
public void testIsLocked() { |
426 |
< |
final Mutex lock = new Mutex(); |
427 |
< |
lock.lock(); |
428 |
< |
assertTrue(lock.isLocked()); |
429 |
< |
lock.unlock(); |
430 |
< |
assertFalse(lock.isLocked()); |
425 |
> |
public void testGetState() { |
426 |
> |
final Mutex sync = new Mutex(); |
427 |
> |
sync.acquire(1); |
428 |
> |
assertTrue(sync.isHeldExclusively()); |
429 |
> |
sync.release(1); |
430 |
> |
assertFalse(sync.isHeldExclusively()); |
431 |
|
Thread t = new Thread(new Runnable() { |
432 |
|
public void run() { |
433 |
< |
lock.lock(); |
433 |
> |
sync.acquire(1); |
434 |
|
try { |
435 |
|
Thread.sleep(SMALL_DELAY_MS); |
436 |
|
} |
437 |
|
catch(Exception e) { |
438 |
|
threadUnexpectedException(); |
439 |
|
} |
440 |
< |
lock.unlock(); |
440 |
> |
sync.release(1); |
441 |
|
} |
442 |
|
}); |
443 |
|
try { |
444 |
|
t.start(); |
445 |
|
Thread.sleep(SHORT_DELAY_MS); |
446 |
< |
assertTrue(lock.isLocked()); |
446 |
> |
assertTrue(sync.isHeldExclusively()); |
447 |
|
t.join(); |
448 |
< |
assertFalse(lock.isLocked()); |
448 |
> |
assertFalse(sync.isHeldExclusively()); |
449 |
|
} catch(Exception e){ |
450 |
|
unexpectedException(); |
451 |
|
} |
453 |
|
|
454 |
|
|
455 |
|
/** |
456 |
< |
* lockInterruptibly is interruptible. |
456 |
> |
* acquireInterruptibly is interruptible. |
457 |
|
*/ |
458 |
< |
public void testLockInterruptibly1() { |
459 |
< |
final Mutex lock = new Mutex(); |
460 |
< |
lock.lock(); |
461 |
< |
Thread t = new Thread(new InterruptedLockRunnable(lock)); |
458 |
> |
public void testAcquireInterruptibly1() { |
459 |
> |
final Mutex sync = new Mutex(); |
460 |
> |
sync.acquire(1); |
461 |
> |
Thread t = new Thread(new InterruptedSyncRunnable(sync)); |
462 |
|
try { |
463 |
|
t.start(); |
464 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
465 |
|
t.interrupt(); |
466 |
< |
lock.unlock(); |
466 |
> |
sync.release(1); |
467 |
|
t.join(); |
468 |
|
} catch(Exception e){ |
469 |
|
unexpectedException(); |
471 |
|
} |
472 |
|
|
473 |
|
/** |
474 |
< |
* lockInterruptibly succeeds when unlocked, else is interruptible |
474 |
> |
* acquireInterruptibly succeeds when released, else is interruptible |
475 |
|
*/ |
476 |
< |
public void testLockInterruptibly2() { |
477 |
< |
final Mutex lock = new Mutex(); |
476 |
> |
public void testAcquireInterruptibly2() { |
477 |
> |
final Mutex sync = new Mutex(); |
478 |
|
try { |
479 |
< |
lock.lockInterruptibly(); |
479 |
> |
sync.acquireInterruptibly(1); |
480 |
|
} catch(Exception e) { |
481 |
|
unexpectedException(); |
482 |
|
} |
483 |
< |
Thread t = new Thread(new InterruptedLockRunnable(lock)); |
483 |
> |
Thread t = new Thread(new InterruptedSyncRunnable(sync)); |
484 |
|
try { |
485 |
|
t.start(); |
486 |
|
t.interrupt(); |
487 |
< |
assertTrue(lock.isLocked()); |
487 |
> |
assertTrue(sync.isHeldExclusively()); |
488 |
|
t.join(); |
489 |
|
} catch(Exception e){ |
490 |
|
unexpectedException(); |
492 |
|
} |
493 |
|
|
494 |
|
/** |
495 |
< |
* Calling await without holding lock throws IllegalMonitorStateException |
495 |
> |
* owns is true for a condition created by sync else false |
496 |
> |
*/ |
497 |
> |
public void testOwns() { |
498 |
> |
final Mutex sync = new Mutex(); |
499 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
500 |
> |
final Mutex sync2 = new Mutex(); |
501 |
> |
assertTrue(sync.owns(c)); |
502 |
> |
assertFalse(sync2.owns(c)); |
503 |
> |
} |
504 |
> |
|
505 |
> |
/** |
506 |
> |
* Calling await without holding sync throws IllegalMonitorStateException |
507 |
|
*/ |
508 |
|
public void testAwait_IllegalMonitor() { |
509 |
< |
final Mutex lock = new Mutex(); |
510 |
< |
final Condition c = lock.newCondition(); |
509 |
> |
final Mutex sync = new Mutex(); |
510 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
511 |
|
try { |
512 |
|
c.await(); |
513 |
|
shouldThrow(); |
520 |
|
} |
521 |
|
|
522 |
|
/** |
523 |
< |
* Calling signal without holding lock throws IllegalMonitorStateException |
523 |
> |
* Calling signal without holding sync throws IllegalMonitorStateException |
524 |
|
*/ |
525 |
|
public void testSignal_IllegalMonitor() { |
526 |
< |
final Mutex lock = new Mutex(); |
527 |
< |
final Condition c = lock.newCondition(); |
526 |
> |
final Mutex sync = new Mutex(); |
527 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
528 |
|
try { |
529 |
|
c.signal(); |
530 |
|
shouldThrow(); |
540 |
|
* awaitNanos without a signal times out |
541 |
|
*/ |
542 |
|
public void testAwaitNanos_Timeout() { |
543 |
< |
final Mutex lock = new Mutex(); |
544 |
< |
final Condition c = lock.newCondition(); |
543 |
> |
final Mutex sync = new Mutex(); |
544 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
545 |
|
try { |
546 |
< |
lock.lock(); |
546 |
> |
sync.acquire(1); |
547 |
|
long t = c.awaitNanos(100); |
548 |
|
assertTrue(t <= 0); |
549 |
< |
lock.unlock(); |
549 |
> |
sync.release(1); |
550 |
|
} |
551 |
|
catch (Exception ex) { |
552 |
|
unexpectedException(); |
554 |
|
} |
555 |
|
|
556 |
|
/** |
557 |
< |
* timed await without a signal times out |
557 |
> |
* Timed await without a signal times out |
558 |
|
*/ |
559 |
|
public void testAwait_Timeout() { |
560 |
< |
final Mutex lock = new Mutex(); |
561 |
< |
final Condition c = lock.newCondition(); |
560 |
> |
final Mutex sync = new Mutex(); |
561 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
562 |
|
try { |
563 |
< |
lock.lock(); |
563 |
> |
sync.acquire(1); |
564 |
|
assertFalse(c.await(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
565 |
< |
lock.unlock(); |
565 |
> |
sync.release(1); |
566 |
|
} |
567 |
|
catch (Exception ex) { |
568 |
|
unexpectedException(); |
573 |
|
* awaitUntil without a signal times out |
574 |
|
*/ |
575 |
|
public void testAwaitUntil_Timeout() { |
576 |
< |
final Mutex lock = new Mutex(); |
577 |
< |
final Condition c = lock.newCondition(); |
576 |
> |
final Mutex sync = new Mutex(); |
577 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
578 |
|
try { |
579 |
< |
lock.lock(); |
579 |
> |
sync.acquire(1); |
580 |
|
java.util.Date d = new java.util.Date(); |
581 |
|
assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10))); |
582 |
< |
lock.unlock(); |
582 |
> |
sync.release(1); |
583 |
|
} |
584 |
|
catch (Exception ex) { |
585 |
|
unexpectedException(); |
590 |
|
* await returns when signalled |
591 |
|
*/ |
592 |
|
public void testAwait() { |
593 |
< |
final Mutex lock = new Mutex(); |
594 |
< |
final Condition c = lock.newCondition(); |
593 |
> |
final Mutex sync = new Mutex(); |
594 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
595 |
> |
Thread t = new Thread(new Runnable() { |
596 |
> |
public void run() { |
597 |
> |
try { |
598 |
> |
sync.acquire(1); |
599 |
> |
c.await(); |
600 |
> |
sync.release(1); |
601 |
> |
} |
602 |
> |
catch(InterruptedException e) { |
603 |
> |
threadUnexpectedException(); |
604 |
> |
} |
605 |
> |
} |
606 |
> |
}); |
607 |
> |
|
608 |
> |
try { |
609 |
> |
t.start(); |
610 |
> |
Thread.sleep(SHORT_DELAY_MS); |
611 |
> |
sync.acquire(1); |
612 |
> |
c.signal(); |
613 |
> |
sync.release(1); |
614 |
> |
t.join(SHORT_DELAY_MS); |
615 |
> |
assertFalse(t.isAlive()); |
616 |
> |
} |
617 |
> |
catch (Exception ex) { |
618 |
> |
unexpectedException(); |
619 |
> |
} |
620 |
> |
} |
621 |
> |
|
622 |
> |
|
623 |
> |
|
624 |
> |
/** |
625 |
> |
* hasWaiters throws NPE if null |
626 |
> |
*/ |
627 |
> |
public void testHasWaitersNPE() { |
628 |
> |
final Mutex sync = new Mutex(); |
629 |
> |
try { |
630 |
> |
sync.hasWaiters(null); |
631 |
> |
shouldThrow(); |
632 |
> |
} catch (NullPointerException success) { |
633 |
> |
} catch (Exception ex) { |
634 |
> |
unexpectedException(); |
635 |
> |
} |
636 |
> |
} |
637 |
> |
|
638 |
> |
/** |
639 |
> |
* getWaitQueueLength throws NPE if null |
640 |
> |
*/ |
641 |
> |
public void testGetWaitQueueLengthNPE() { |
642 |
> |
final Mutex sync = new Mutex(); |
643 |
> |
try { |
644 |
> |
sync.getWaitQueueLength(null); |
645 |
> |
shouldThrow(); |
646 |
> |
} catch (NullPointerException success) { |
647 |
> |
} catch (Exception ex) { |
648 |
> |
unexpectedException(); |
649 |
> |
} |
650 |
> |
} |
651 |
> |
|
652 |
> |
|
653 |
> |
/** |
654 |
> |
* getWaitingThreads throws NPE if null |
655 |
> |
*/ |
656 |
> |
public void testGetWaitingThreadsNPE() { |
657 |
> |
final Mutex sync = new Mutex(); |
658 |
> |
try { |
659 |
> |
sync.getWaitingThreads(null); |
660 |
> |
shouldThrow(); |
661 |
> |
} catch (NullPointerException success) { |
662 |
> |
} catch (Exception ex) { |
663 |
> |
unexpectedException(); |
664 |
> |
} |
665 |
> |
} |
666 |
> |
|
667 |
> |
|
668 |
> |
/** |
669 |
> |
* hasWaiters throws IAE if not owned |
670 |
> |
*/ |
671 |
> |
public void testHasWaitersIAE() { |
672 |
> |
final Mutex sync = new Mutex(); |
673 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = (sync.newCondition()); |
674 |
> |
final Mutex sync2 = new Mutex(); |
675 |
> |
try { |
676 |
> |
sync2.hasWaiters(c); |
677 |
> |
shouldThrow(); |
678 |
> |
} catch (IllegalArgumentException success) { |
679 |
> |
} catch (Exception ex) { |
680 |
> |
unexpectedException(); |
681 |
> |
} |
682 |
> |
} |
683 |
> |
|
684 |
> |
/** |
685 |
> |
* hasWaiters throws IMSE if not synced |
686 |
> |
*/ |
687 |
> |
public void testHasWaitersIMSE() { |
688 |
> |
final Mutex sync = new Mutex(); |
689 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = (sync.newCondition()); |
690 |
> |
try { |
691 |
> |
sync.hasWaiters(c); |
692 |
> |
shouldThrow(); |
693 |
> |
} catch (IllegalMonitorStateException success) { |
694 |
> |
} catch (Exception ex) { |
695 |
> |
unexpectedException(); |
696 |
> |
} |
697 |
> |
} |
698 |
> |
|
699 |
> |
|
700 |
> |
/** |
701 |
> |
* getWaitQueueLength throws IAE if not owned |
702 |
> |
*/ |
703 |
> |
public void testGetWaitQueueLengthIAE() { |
704 |
> |
final Mutex sync = new Mutex(); |
705 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = (sync.newCondition()); |
706 |
> |
final Mutex sync2 = new Mutex(); |
707 |
> |
try { |
708 |
> |
sync2.getWaitQueueLength(c); |
709 |
> |
shouldThrow(); |
710 |
> |
} catch (IllegalArgumentException success) { |
711 |
> |
} catch (Exception ex) { |
712 |
> |
unexpectedException(); |
713 |
> |
} |
714 |
> |
} |
715 |
> |
|
716 |
> |
/** |
717 |
> |
* getWaitQueueLength throws IMSE if not synced |
718 |
> |
*/ |
719 |
> |
public void testGetWaitQueueLengthIMSE() { |
720 |
> |
final Mutex sync = new Mutex(); |
721 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = (sync.newCondition()); |
722 |
> |
try { |
723 |
> |
sync.getWaitQueueLength(c); |
724 |
> |
shouldThrow(); |
725 |
> |
} catch (IllegalMonitorStateException success) { |
726 |
> |
} catch (Exception ex) { |
727 |
> |
unexpectedException(); |
728 |
> |
} |
729 |
> |
} |
730 |
> |
|
731 |
> |
|
732 |
> |
/** |
733 |
> |
* getWaitingThreads throws IAE if not owned |
734 |
> |
*/ |
735 |
> |
public void testGetWaitingThreadsIAE() { |
736 |
> |
final Mutex sync = new Mutex(); |
737 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = (sync.newCondition()); |
738 |
> |
final Mutex sync2 = new Mutex(); |
739 |
> |
try { |
740 |
> |
sync2.getWaitingThreads(c); |
741 |
> |
shouldThrow(); |
742 |
> |
} catch (IllegalArgumentException success) { |
743 |
> |
} catch (Exception ex) { |
744 |
> |
unexpectedException(); |
745 |
> |
} |
746 |
> |
} |
747 |
> |
|
748 |
> |
/** |
749 |
> |
* getWaitingThreads throws IMSE if not synced |
750 |
> |
*/ |
751 |
> |
public void testGetWaitingThreadsIMSE() { |
752 |
> |
final Mutex sync = new Mutex(); |
753 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = (sync.newCondition()); |
754 |
> |
try { |
755 |
> |
sync.getWaitingThreads(c); |
756 |
> |
shouldThrow(); |
757 |
> |
} catch (IllegalMonitorStateException success) { |
758 |
> |
} catch (Exception ex) { |
759 |
> |
unexpectedException(); |
760 |
> |
} |
761 |
> |
} |
762 |
> |
|
763 |
> |
|
764 |
> |
|
765 |
> |
/** |
766 |
> |
* hasWaiters returns true when a thread is waiting, else false |
767 |
> |
*/ |
768 |
> |
public void testHasWaiters() { |
769 |
> |
final Mutex sync = new Mutex(); |
770 |
> |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
771 |
|
Thread t = new Thread(new Runnable() { |
772 |
|
public void run() { |
773 |
|
try { |
774 |
< |
lock.lock(); |
774 |
> |
sync.acquire(1); |
775 |
> |
threadAssertFalse(sync.hasWaiters(c)); |
776 |
> |
threadAssertEquals(0, sync.getWaitQueueLength(c)); |
777 |
|
c.await(); |
778 |
< |
lock.unlock(); |
778 |
> |
sync.release(1); |
779 |
|
} |
780 |
|
catch(InterruptedException e) { |
781 |
|
threadUnexpectedException(); |
786 |
|
try { |
787 |
|
t.start(); |
788 |
|
Thread.sleep(SHORT_DELAY_MS); |
789 |
< |
lock.lock(); |
789 |
> |
sync.acquire(1); |
790 |
> |
assertTrue(sync.hasWaiters(c)); |
791 |
> |
assertEquals(1, sync.getWaitQueueLength(c)); |
792 |
|
c.signal(); |
793 |
< |
lock.unlock(); |
793 |
> |
sync.release(1); |
794 |
> |
Thread.sleep(SHORT_DELAY_MS); |
795 |
> |
sync.acquire(1); |
796 |
> |
assertFalse(sync.hasWaiters(c)); |
797 |
> |
assertEquals(0, sync.getWaitQueueLength(c)); |
798 |
> |
sync.release(1); |
799 |
|
t.join(SHORT_DELAY_MS); |
800 |
|
assertFalse(t.isAlive()); |
801 |
|
} |
803 |
|
unexpectedException(); |
804 |
|
} |
805 |
|
} |
806 |
+ |
|
807 |
+ |
/** |
808 |
+ |
* getWaitQueueLength returns number of waiting threads |
809 |
+ |
*/ |
810 |
+ |
public void testGetWaitQueueLength() { |
811 |
+ |
final Mutex sync = new Mutex(); |
812 |
+ |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
813 |
+ |
Thread t1 = new Thread(new Runnable() { |
814 |
+ |
public void run() { |
815 |
+ |
try { |
816 |
+ |
sync.acquire(1); |
817 |
+ |
threadAssertFalse(sync.hasWaiters(c)); |
818 |
+ |
threadAssertEquals(0, sync.getWaitQueueLength(c)); |
819 |
+ |
c.await(); |
820 |
+ |
sync.release(1); |
821 |
+ |
} |
822 |
+ |
catch(InterruptedException e) { |
823 |
+ |
threadUnexpectedException(); |
824 |
+ |
} |
825 |
+ |
} |
826 |
+ |
}); |
827 |
+ |
|
828 |
+ |
Thread t2 = new Thread(new Runnable() { |
829 |
+ |
public void run() { |
830 |
+ |
try { |
831 |
+ |
sync.acquire(1); |
832 |
+ |
threadAssertTrue(sync.hasWaiters(c)); |
833 |
+ |
threadAssertEquals(1, sync.getWaitQueueLength(c)); |
834 |
+ |
c.await(); |
835 |
+ |
sync.release(1); |
836 |
+ |
} |
837 |
+ |
catch(InterruptedException e) { |
838 |
+ |
threadUnexpectedException(); |
839 |
+ |
} |
840 |
+ |
} |
841 |
+ |
}); |
842 |
+ |
|
843 |
+ |
try { |
844 |
+ |
t1.start(); |
845 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
846 |
+ |
t2.start(); |
847 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
848 |
+ |
sync.acquire(1); |
849 |
+ |
assertTrue(sync.hasWaiters(c)); |
850 |
+ |
assertEquals(2, sync.getWaitQueueLength(c)); |
851 |
+ |
c.signalAll(); |
852 |
+ |
sync.release(1); |
853 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
854 |
+ |
sync.acquire(1); |
855 |
+ |
assertFalse(sync.hasWaiters(c)); |
856 |
+ |
assertEquals(0, sync.getWaitQueueLength(c)); |
857 |
+ |
sync.release(1); |
858 |
+ |
t1.join(SHORT_DELAY_MS); |
859 |
+ |
t2.join(SHORT_DELAY_MS); |
860 |
+ |
assertFalse(t1.isAlive()); |
861 |
+ |
assertFalse(t2.isAlive()); |
862 |
+ |
} |
863 |
+ |
catch (Exception ex) { |
864 |
+ |
unexpectedException(); |
865 |
+ |
} |
866 |
+ |
} |
867 |
+ |
|
868 |
+ |
/** |
869 |
+ |
* getWaitingThreads returns only and all waiting threads |
870 |
+ |
*/ |
871 |
+ |
public void testGetWaitingThreads() { |
872 |
+ |
final Mutex sync = new Mutex(); |
873 |
+ |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
874 |
+ |
Thread t1 = new Thread(new Runnable() { |
875 |
+ |
public void run() { |
876 |
+ |
try { |
877 |
+ |
sync.acquire(1); |
878 |
+ |
threadAssertTrue(sync.getWaitingThreads(c).isEmpty()); |
879 |
+ |
c.await(); |
880 |
+ |
sync.release(1); |
881 |
+ |
} |
882 |
+ |
catch(InterruptedException e) { |
883 |
+ |
threadUnexpectedException(); |
884 |
+ |
} |
885 |
+ |
} |
886 |
+ |
}); |
887 |
+ |
|
888 |
+ |
Thread t2 = new Thread(new Runnable() { |
889 |
+ |
public void run() { |
890 |
+ |
try { |
891 |
+ |
sync.acquire(1); |
892 |
+ |
threadAssertFalse(sync.getWaitingThreads(c).isEmpty()); |
893 |
+ |
c.await(); |
894 |
+ |
sync.release(1); |
895 |
+ |
} |
896 |
+ |
catch(InterruptedException e) { |
897 |
+ |
threadUnexpectedException(); |
898 |
+ |
} |
899 |
+ |
} |
900 |
+ |
}); |
901 |
+ |
|
902 |
+ |
try { |
903 |
+ |
sync.acquire(1); |
904 |
+ |
assertTrue(sync.getWaitingThreads(c).isEmpty()); |
905 |
+ |
sync.release(1); |
906 |
+ |
t1.start(); |
907 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
908 |
+ |
t2.start(); |
909 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
910 |
+ |
sync.acquire(1); |
911 |
+ |
assertTrue(sync.hasWaiters(c)); |
912 |
+ |
assertTrue(sync.getWaitingThreads(c).contains(t1)); |
913 |
+ |
assertTrue(sync.getWaitingThreads(c).contains(t2)); |
914 |
+ |
c.signalAll(); |
915 |
+ |
sync.release(1); |
916 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
917 |
+ |
sync.acquire(1); |
918 |
+ |
assertFalse(sync.hasWaiters(c)); |
919 |
+ |
assertTrue(sync.getWaitingThreads(c).isEmpty()); |
920 |
+ |
sync.release(1); |
921 |
+ |
t1.join(SHORT_DELAY_MS); |
922 |
+ |
t2.join(SHORT_DELAY_MS); |
923 |
+ |
assertFalse(t1.isAlive()); |
924 |
+ |
assertFalse(t2.isAlive()); |
925 |
+ |
} |
926 |
+ |
catch (Exception ex) { |
927 |
+ |
unexpectedException(); |
928 |
+ |
} |
929 |
+ |
} |
930 |
+ |
|
931 |
+ |
|
932 |
+ |
|
933 |
+ |
/** |
934 |
+ |
* awaitUninterruptibly doesn't abort on interrupt |
935 |
+ |
*/ |
936 |
+ |
public void testAwaitUninterruptibly() { |
937 |
+ |
final Mutex sync = new Mutex(); |
938 |
+ |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
939 |
+ |
Thread t = new Thread(new Runnable() { |
940 |
+ |
public void run() { |
941 |
+ |
sync.acquire(1); |
942 |
+ |
c.awaitUninterruptibly(); |
943 |
+ |
sync.release(1); |
944 |
+ |
} |
945 |
+ |
}); |
946 |
+ |
|
947 |
+ |
try { |
948 |
+ |
t.start(); |
949 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
950 |
+ |
t.interrupt(); |
951 |
+ |
sync.acquire(1); |
952 |
+ |
c.signal(); |
953 |
+ |
sync.release(1); |
954 |
+ |
t.join(SHORT_DELAY_MS); |
955 |
+ |
assertFalse(t.isAlive()); |
956 |
+ |
} |
957 |
+ |
catch (Exception ex) { |
958 |
+ |
unexpectedException(); |
959 |
+ |
} |
960 |
+ |
} |
961 |
+ |
|
962 |
+ |
/** |
963 |
+ |
* await is interruptible |
964 |
+ |
*/ |
965 |
+ |
public void testAwait_Interrupt() { |
966 |
+ |
final Mutex sync = new Mutex(); |
967 |
+ |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
968 |
+ |
Thread t = new Thread(new Runnable() { |
969 |
+ |
public void run() { |
970 |
+ |
try { |
971 |
+ |
sync.acquire(1); |
972 |
+ |
c.await(); |
973 |
+ |
sync.release(1); |
974 |
+ |
threadShouldThrow(); |
975 |
+ |
} |
976 |
+ |
catch(InterruptedException success) { |
977 |
+ |
} |
978 |
+ |
} |
979 |
+ |
}); |
980 |
+ |
|
981 |
+ |
try { |
982 |
+ |
t.start(); |
983 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
984 |
+ |
t.interrupt(); |
985 |
+ |
t.join(SHORT_DELAY_MS); |
986 |
+ |
assertFalse(t.isAlive()); |
987 |
+ |
} |
988 |
+ |
catch (Exception ex) { |
989 |
+ |
unexpectedException(); |
990 |
+ |
} |
991 |
+ |
} |
992 |
+ |
|
993 |
+ |
/** |
994 |
+ |
* awaitNanos is interruptible |
995 |
+ |
*/ |
996 |
+ |
public void testAwaitNanos_Interrupt() { |
997 |
+ |
final Mutex sync = new Mutex(); |
998 |
+ |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
999 |
+ |
Thread t = new Thread(new Runnable() { |
1000 |
+ |
public void run() { |
1001 |
+ |
try { |
1002 |
+ |
sync.acquire(1); |
1003 |
+ |
c.awaitNanos(1000 * 1000 * 1000); // 1 sec |
1004 |
+ |
sync.release(1); |
1005 |
+ |
threadShouldThrow(); |
1006 |
+ |
} |
1007 |
+ |
catch(InterruptedException success) { |
1008 |
+ |
} |
1009 |
+ |
} |
1010 |
+ |
}); |
1011 |
+ |
|
1012 |
+ |
try { |
1013 |
+ |
t.start(); |
1014 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1015 |
+ |
t.interrupt(); |
1016 |
+ |
t.join(SHORT_DELAY_MS); |
1017 |
+ |
assertFalse(t.isAlive()); |
1018 |
+ |
} |
1019 |
+ |
catch (Exception ex) { |
1020 |
+ |
unexpectedException(); |
1021 |
+ |
} |
1022 |
+ |
} |
1023 |
+ |
|
1024 |
+ |
/** |
1025 |
+ |
* awaitUntil is interruptible |
1026 |
+ |
*/ |
1027 |
+ |
public void testAwaitUntil_Interrupt() { |
1028 |
+ |
final Mutex sync = new Mutex(); |
1029 |
+ |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
1030 |
+ |
Thread t = new Thread(new Runnable() { |
1031 |
+ |
public void run() { |
1032 |
+ |
try { |
1033 |
+ |
sync.acquire(1); |
1034 |
+ |
java.util.Date d = new java.util.Date(); |
1035 |
+ |
c.awaitUntil(new java.util.Date(d.getTime() + 10000)); |
1036 |
+ |
sync.release(1); |
1037 |
+ |
threadShouldThrow(); |
1038 |
+ |
} |
1039 |
+ |
catch(InterruptedException success) { |
1040 |
+ |
} |
1041 |
+ |
} |
1042 |
+ |
}); |
1043 |
+ |
|
1044 |
+ |
try { |
1045 |
+ |
t.start(); |
1046 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1047 |
+ |
t.interrupt(); |
1048 |
+ |
t.join(SHORT_DELAY_MS); |
1049 |
+ |
assertFalse(t.isAlive()); |
1050 |
+ |
} |
1051 |
+ |
catch (Exception ex) { |
1052 |
+ |
unexpectedException(); |
1053 |
+ |
} |
1054 |
+ |
} |
1055 |
+ |
|
1056 |
+ |
/** |
1057 |
+ |
* signalAll wakes up all threads |
1058 |
+ |
*/ |
1059 |
+ |
public void testSignalAll() { |
1060 |
+ |
final Mutex sync = new Mutex(); |
1061 |
+ |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
1062 |
+ |
Thread t1 = new Thread(new Runnable() { |
1063 |
+ |
public void run() { |
1064 |
+ |
try { |
1065 |
+ |
sync.acquire(1); |
1066 |
+ |
c.await(); |
1067 |
+ |
sync.release(1); |
1068 |
+ |
} |
1069 |
+ |
catch(InterruptedException e) { |
1070 |
+ |
threadUnexpectedException(); |
1071 |
+ |
} |
1072 |
+ |
} |
1073 |
+ |
}); |
1074 |
+ |
|
1075 |
+ |
Thread t2 = new Thread(new Runnable() { |
1076 |
+ |
public void run() { |
1077 |
+ |
try { |
1078 |
+ |
sync.acquire(1); |
1079 |
+ |
c.await(); |
1080 |
+ |
sync.release(1); |
1081 |
+ |
} |
1082 |
+ |
catch(InterruptedException e) { |
1083 |
+ |
threadUnexpectedException(); |
1084 |
+ |
} |
1085 |
+ |
} |
1086 |
+ |
}); |
1087 |
+ |
|
1088 |
+ |
try { |
1089 |
+ |
t1.start(); |
1090 |
+ |
t2.start(); |
1091 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1092 |
+ |
sync.acquire(1); |
1093 |
+ |
c.signalAll(); |
1094 |
+ |
sync.release(1); |
1095 |
+ |
t1.join(SHORT_DELAY_MS); |
1096 |
+ |
t2.join(SHORT_DELAY_MS); |
1097 |
+ |
assertFalse(t1.isAlive()); |
1098 |
+ |
assertFalse(t2.isAlive()); |
1099 |
+ |
} |
1100 |
+ |
catch (Exception ex) { |
1101 |
+ |
unexpectedException(); |
1102 |
+ |
} |
1103 |
+ |
} |
1104 |
+ |
|
1105 |
+ |
|
1106 |
+ |
/** |
1107 |
+ |
* toString indicates current state |
1108 |
+ |
*/ |
1109 |
+ |
public void testToString() { |
1110 |
+ |
Mutex sync = new Mutex(); |
1111 |
+ |
String us = sync.toString(); |
1112 |
+ |
assertTrue(us.indexOf("State = 0") >= 0); |
1113 |
+ |
sync.acquire(1); |
1114 |
+ |
String ls = sync.toString(); |
1115 |
+ |
assertTrue(ls.indexOf("State = 1") >= 0); |
1116 |
+ |
} |
1117 |
+ |
|
1118 |
+ |
/** |
1119 |
+ |
* A serialized AQS deserializes with current state |
1120 |
+ |
*/ |
1121 |
+ |
public void testSerialization() { |
1122 |
+ |
Mutex l = new Mutex(); |
1123 |
+ |
l.acquire(1); |
1124 |
+ |
assertTrue(l.isHeldExclusively()); |
1125 |
+ |
|
1126 |
+ |
try { |
1127 |
+ |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
1128 |
+ |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
1129 |
+ |
out.writeObject(l); |
1130 |
+ |
out.close(); |
1131 |
+ |
|
1132 |
+ |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
1133 |
+ |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
1134 |
+ |
Mutex r = (Mutex) in.readObject(); |
1135 |
+ |
assertTrue(r.isHeldExclusively()); |
1136 |
+ |
} catch(Exception e){ |
1137 |
+ |
e.printStackTrace(); |
1138 |
+ |
unexpectedException(); |
1139 |
+ |
} |
1140 |
+ |
} |
1141 |
+ |
|
1142 |
+ |
|
1143 |
+ |
/** |
1144 |
+ |
* tryReleaseShared setting state changes getState |
1145 |
+ |
*/ |
1146 |
+ |
public void testGetStateWithReleaseShared() { |
1147 |
+ |
final BooleanLatch l = new BooleanLatch(); |
1148 |
+ |
assertFalse(l.isSignalled()); |
1149 |
+ |
l.releaseShared(0); |
1150 |
+ |
assertTrue(l.isSignalled()); |
1151 |
+ |
} |
1152 |
+ |
|
1153 |
+ |
/** |
1154 |
+ |
* releaseShared has no effect when already signalled |
1155 |
+ |
*/ |
1156 |
+ |
public void testReleaseShared() { |
1157 |
+ |
final BooleanLatch l = new BooleanLatch(); |
1158 |
+ |
assertFalse(l.isSignalled()); |
1159 |
+ |
l.releaseShared(0); |
1160 |
+ |
assertTrue(l.isSignalled()); |
1161 |
+ |
l.releaseShared(0); |
1162 |
+ |
assertTrue(l.isSignalled()); |
1163 |
+ |
} |
1164 |
+ |
|
1165 |
+ |
/** |
1166 |
+ |
* acquireSharedInterruptibly returns after release, but not before |
1167 |
+ |
*/ |
1168 |
+ |
public void testAcquireSharedInterruptibly() { |
1169 |
+ |
final BooleanLatch l = new BooleanLatch(); |
1170 |
+ |
|
1171 |
+ |
Thread t = new Thread(new Runnable() { |
1172 |
+ |
public void run() { |
1173 |
+ |
try { |
1174 |
+ |
threadAssertFalse(l.isSignalled()); |
1175 |
+ |
l.acquireSharedInterruptibly(0); |
1176 |
+ |
threadAssertTrue(l.isSignalled()); |
1177 |
+ |
} catch(InterruptedException e){ |
1178 |
+ |
threadUnexpectedException(); |
1179 |
+ |
} |
1180 |
+ |
} |
1181 |
+ |
}); |
1182 |
+ |
try { |
1183 |
+ |
t.start(); |
1184 |
+ |
assertFalse(l.isSignalled()); |
1185 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1186 |
+ |
l.releaseShared(0); |
1187 |
+ |
assertTrue(l.isSignalled()); |
1188 |
+ |
t.join(); |
1189 |
+ |
} catch (InterruptedException e){ |
1190 |
+ |
unexpectedException(); |
1191 |
+ |
} |
1192 |
+ |
} |
1193 |
+ |
|
1194 |
+ |
|
1195 |
+ |
/** |
1196 |
+ |
* acquireSharedTimed returns after release |
1197 |
+ |
*/ |
1198 |
+ |
public void testAsquireSharedTimed() { |
1199 |
+ |
final BooleanLatch l = new BooleanLatch(); |
1200 |
+ |
|
1201 |
+ |
Thread t = new Thread(new Runnable() { |
1202 |
+ |
public void run() { |
1203 |
+ |
try { |
1204 |
+ |
threadAssertFalse(l.isSignalled()); |
1205 |
+ |
threadAssertTrue(l.tryAcquireSharedNanos(0, MEDIUM_DELAY_MS* 1000 * 1000)); |
1206 |
+ |
threadAssertTrue(l.isSignalled()); |
1207 |
+ |
|
1208 |
+ |
} catch(InterruptedException e){ |
1209 |
+ |
threadUnexpectedException(); |
1210 |
+ |
} |
1211 |
+ |
} |
1212 |
+ |
}); |
1213 |
+ |
try { |
1214 |
+ |
t.start(); |
1215 |
+ |
assertFalse(l.isSignalled()); |
1216 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1217 |
+ |
l.releaseShared(0); |
1218 |
+ |
assertTrue(l.isSignalled()); |
1219 |
+ |
t.join(); |
1220 |
+ |
} catch (InterruptedException e){ |
1221 |
+ |
unexpectedException(); |
1222 |
+ |
} |
1223 |
+ |
} |
1224 |
+ |
|
1225 |
+ |
/** |
1226 |
+ |
* acquireSharedInterruptibly throws IE if interrupted before released |
1227 |
+ |
*/ |
1228 |
+ |
public void testAcquireSharedInterruptibly_InterruptedException() { |
1229 |
+ |
final BooleanLatch l = new BooleanLatch(); |
1230 |
+ |
Thread t = new Thread(new Runnable() { |
1231 |
+ |
public void run() { |
1232 |
+ |
try { |
1233 |
+ |
threadAssertFalse(l.isSignalled()); |
1234 |
+ |
l.acquireSharedInterruptibly(0); |
1235 |
+ |
threadShouldThrow(); |
1236 |
+ |
} catch(InterruptedException success){} |
1237 |
+ |
} |
1238 |
+ |
}); |
1239 |
+ |
t.start(); |
1240 |
+ |
try { |
1241 |
+ |
assertFalse(l.isSignalled()); |
1242 |
+ |
t.interrupt(); |
1243 |
+ |
t.join(); |
1244 |
+ |
} catch (InterruptedException e){ |
1245 |
+ |
unexpectedException(); |
1246 |
+ |
} |
1247 |
+ |
} |
1248 |
+ |
|
1249 |
+ |
/** |
1250 |
+ |
* acquireSharedTimed throws IE if interrupted before released |
1251 |
+ |
*/ |
1252 |
+ |
public void testAcquireSharedNanos_InterruptedException() { |
1253 |
+ |
final BooleanLatch l = new BooleanLatch(); |
1254 |
+ |
Thread t = new Thread(new Runnable() { |
1255 |
+ |
public void run() { |
1256 |
+ |
try { |
1257 |
+ |
threadAssertFalse(l.isSignalled()); |
1258 |
+ |
l.tryAcquireSharedNanos(0, SMALL_DELAY_MS* 1000 * 1000); |
1259 |
+ |
threadShouldThrow(); |
1260 |
+ |
} catch(InterruptedException success){} |
1261 |
+ |
} |
1262 |
+ |
}); |
1263 |
+ |
t.start(); |
1264 |
+ |
try { |
1265 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1266 |
+ |
assertFalse(l.isSignalled()); |
1267 |
+ |
t.interrupt(); |
1268 |
+ |
t.join(); |
1269 |
+ |
} catch (InterruptedException e){ |
1270 |
+ |
unexpectedException(); |
1271 |
+ |
} |
1272 |
+ |
} |
1273 |
+ |
|
1274 |
+ |
/** |
1275 |
+ |
* acquireSharedTimed times out if not released before timeout |
1276 |
+ |
*/ |
1277 |
+ |
public void testAcquireSharedNanos_Timeout() { |
1278 |
+ |
final BooleanLatch l = new BooleanLatch(); |
1279 |
+ |
Thread t = new Thread(new Runnable() { |
1280 |
+ |
public void run() { |
1281 |
+ |
try { |
1282 |
+ |
threadAssertFalse(l.isSignalled()); |
1283 |
+ |
threadAssertFalse(l.tryAcquireSharedNanos(0, SMALL_DELAY_MS* 1000 * 1000)); |
1284 |
+ |
} catch(InterruptedException ie){ |
1285 |
+ |
threadUnexpectedException(); |
1286 |
+ |
} |
1287 |
+ |
} |
1288 |
+ |
}); |
1289 |
+ |
t.start(); |
1290 |
+ |
try { |
1291 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1292 |
+ |
assertFalse(l.isSignalled()); |
1293 |
+ |
t.join(); |
1294 |
+ |
} catch (InterruptedException e){ |
1295 |
+ |
unexpectedException(); |
1296 |
+ |
} |
1297 |
+ |
} |
1298 |
+ |
|
1299 |
|
|
1300 |
|
} |