1 |
dl |
1.1 |
/* |
2 |
|
|
* Written by Doug Lea with assistance from members of JCP JSR-166 |
3 |
|
|
* Expert Group and released to the public domain, as explained at |
4 |
jsr166 |
1.39 |
* http://creativecommons.org/publicdomain/zero/1.0/ |
5 |
jsr166 |
1.22 |
* Other contributors include Andrew Wright, Jeffrey Hayes, |
6 |
|
|
* Pat Fisher, Mike Judd. |
7 |
dl |
1.1 |
*/ |
8 |
|
|
|
9 |
|
|
import junit.framework.*; |
10 |
|
|
import java.util.*; |
11 |
jsr166 |
1.30 |
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
12 |
jsr166 |
1.41 |
import java.util.concurrent.locks.AbstractQueuedSynchronizer; |
13 |
|
|
import java.util.concurrent.locks.AbstractQueuedSynchronizer.ConditionObject; |
14 |
dl |
1.1 |
|
15 |
|
|
public class AbstractQueuedSynchronizerTest extends JSR166TestCase { |
16 |
|
|
public static void main(String[] args) { |
17 |
jsr166 |
1.34 |
junit.textui.TestRunner.run(suite()); |
18 |
dl |
1.1 |
} |
19 |
|
|
public static Test suite() { |
20 |
|
|
return new TestSuite(AbstractQueuedSynchronizerTest.class); |
21 |
|
|
} |
22 |
|
|
|
23 |
|
|
/** |
24 |
jsr166 |
1.41 |
* A simple mutex class, adapted from the class javadoc. Exclusive |
25 |
|
|
* acquire tests exercise this as a sample user extension. Other |
26 |
|
|
* methods/features of AbstractQueuedSynchronizer are tested via |
27 |
|
|
* other test classes, including those for ReentrantLock, |
28 |
|
|
* ReentrantReadWriteLock, and Semaphore. |
29 |
dl |
1.12 |
*/ |
30 |
|
|
static class Mutex extends AbstractQueuedSynchronizer { |
31 |
jsr166 |
1.41 |
/** An eccentric value for locked synchronizer state. */ |
32 |
|
|
static final int LOCKED = (1 << 31) | (1 << 15); |
33 |
|
|
|
34 |
|
|
static final int UNLOCKED = 0; |
35 |
|
|
|
36 |
|
|
@Override public boolean isHeldExclusively() { |
37 |
|
|
int state = getState(); |
38 |
|
|
assertTrue(state == UNLOCKED || state == LOCKED); |
39 |
|
|
return state == LOCKED; |
40 |
|
|
} |
41 |
jsr166 |
1.22 |
|
42 |
jsr166 |
1.41 |
@Override public boolean tryAcquire(int acquires) { |
43 |
|
|
assertEquals(LOCKED, acquires); |
44 |
|
|
return compareAndSetState(UNLOCKED, LOCKED); |
45 |
dl |
1.12 |
} |
46 |
jsr166 |
1.22 |
|
47 |
jsr166 |
1.41 |
@Override public boolean tryRelease(int releases) { |
48 |
|
|
if (getState() != LOCKED) throw new IllegalMonitorStateException(); |
49 |
|
|
assertEquals(LOCKED, releases); |
50 |
|
|
setState(UNLOCKED); |
51 |
dl |
1.12 |
return true; |
52 |
|
|
} |
53 |
jsr166 |
1.22 |
|
54 |
jsr166 |
1.41 |
public boolean tryAcquireNanos(long nanos) throws InterruptedException { |
55 |
|
|
return tryAcquireNanos(LOCKED, nanos); |
56 |
jsr166 |
1.35 |
} |
57 |
dl |
1.12 |
|
58 |
jsr166 |
1.41 |
public boolean tryAcquire() { |
59 |
|
|
return tryAcquire(LOCKED); |
60 |
|
|
} |
61 |
|
|
|
62 |
|
|
public boolean tryRelease() { |
63 |
|
|
return tryRelease(LOCKED); |
64 |
|
|
} |
65 |
|
|
|
66 |
|
|
public void acquire() { |
67 |
|
|
acquire(LOCKED); |
68 |
|
|
} |
69 |
|
|
|
70 |
|
|
public void acquireInterruptibly() throws InterruptedException { |
71 |
|
|
acquireInterruptibly(LOCKED); |
72 |
|
|
} |
73 |
|
|
|
74 |
|
|
public void release() { |
75 |
|
|
release(LOCKED); |
76 |
|
|
} |
77 |
|
|
|
78 |
|
|
public ConditionObject newCondition() { |
79 |
|
|
return new ConditionObject(); |
80 |
|
|
} |
81 |
dl |
1.12 |
} |
82 |
|
|
|
83 |
|
|
/** |
84 |
|
|
* A simple latch class, to test shared mode. |
85 |
|
|
*/ |
86 |
jsr166 |
1.22 |
static class BooleanLatch extends AbstractQueuedSynchronizer { |
87 |
dl |
1.12 |
public boolean isSignalled() { return getState() != 0; } |
88 |
|
|
|
89 |
|
|
public int tryAcquireShared(int ignore) { |
90 |
jsr166 |
1.38 |
return isSignalled() ? 1 : -1; |
91 |
dl |
1.1 |
} |
92 |
jsr166 |
1.22 |
|
93 |
dl |
1.12 |
public boolean tryReleaseShared(int ignore) { |
94 |
|
|
setState(1); |
95 |
|
|
return true; |
96 |
dl |
1.1 |
} |
97 |
|
|
} |
98 |
|
|
|
99 |
|
|
/** |
100 |
jsr166 |
1.28 |
* A runnable calling acquireInterruptibly that does not expect to |
101 |
|
|
* be interrupted. |
102 |
dl |
1.1 |
*/ |
103 |
jsr166 |
1.28 |
class InterruptibleSyncRunnable extends CheckedRunnable { |
104 |
dl |
1.17 |
final Mutex sync; |
105 |
jsr166 |
1.41 |
InterruptibleSyncRunnable(Mutex sync) { this.sync = sync; } |
106 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
107 |
jsr166 |
1.41 |
sync.acquireInterruptibly(); |
108 |
dl |
1.1 |
} |
109 |
|
|
} |
110 |
|
|
|
111 |
|
|
/** |
112 |
dl |
1.16 |
* A runnable calling acquireInterruptibly that expects to be |
113 |
jsr166 |
1.28 |
* interrupted. |
114 |
dl |
1.1 |
*/ |
115 |
jsr166 |
1.28 |
class InterruptedSyncRunnable extends CheckedInterruptedRunnable { |
116 |
dl |
1.17 |
final Mutex sync; |
117 |
jsr166 |
1.41 |
InterruptedSyncRunnable(Mutex sync) { this.sync = sync; } |
118 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
119 |
jsr166 |
1.41 |
sync.acquireInterruptibly(); |
120 |
|
|
} |
121 |
|
|
} |
122 |
|
|
|
123 |
|
|
/** A constant to clarify calls to checking methods below. */ |
124 |
|
|
final static Thread[] NO_THREADS = new Thread[0]; |
125 |
|
|
|
126 |
|
|
/** |
127 |
|
|
* Spin-waits until sync.isQueued(t) becomes true. |
128 |
|
|
*/ |
129 |
|
|
void waitForQueuedThread(AbstractQueuedSynchronizer sync, Thread t) { |
130 |
|
|
long startTime = System.nanoTime(); |
131 |
|
|
while (!sync.isQueued(t)) { |
132 |
|
|
if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
133 |
|
|
throw new AssertionFailedError("timed out"); |
134 |
|
|
Thread.yield(); |
135 |
dl |
1.1 |
} |
136 |
jsr166 |
1.41 |
assertTrue(t.isAlive()); |
137 |
|
|
} |
138 |
|
|
|
139 |
|
|
/** |
140 |
|
|
* Checks that sync has exactly the given queued threads. |
141 |
|
|
*/ |
142 |
|
|
void assertHasQueuedThreads(AbstractQueuedSynchronizer sync, |
143 |
|
|
Thread... expected) { |
144 |
|
|
Collection<Thread> actual = sync.getQueuedThreads(); |
145 |
|
|
assertEquals(expected.length > 0, sync.hasQueuedThreads()); |
146 |
|
|
assertEquals(expected.length, sync.getQueueLength()); |
147 |
|
|
assertEquals(expected.length, actual.size()); |
148 |
|
|
assertEquals(expected.length == 0, actual.isEmpty()); |
149 |
|
|
assertEquals(new HashSet<Thread>(actual), |
150 |
|
|
new HashSet<Thread>(Arrays.asList(expected))); |
151 |
|
|
} |
152 |
|
|
|
153 |
|
|
/** |
154 |
|
|
* Checks that sync has exactly the given (exclusive) queued threads. |
155 |
|
|
*/ |
156 |
|
|
void assertHasExclusiveQueuedThreads(AbstractQueuedSynchronizer sync, |
157 |
|
|
Thread... expected) { |
158 |
|
|
assertHasQueuedThreads(sync, expected); |
159 |
|
|
assertEquals(new HashSet<Thread>(sync.getExclusiveQueuedThreads()), |
160 |
|
|
new HashSet<Thread>(sync.getQueuedThreads())); |
161 |
|
|
assertEquals(0, sync.getSharedQueuedThreads().size()); |
162 |
|
|
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
163 |
|
|
} |
164 |
|
|
|
165 |
|
|
/** |
166 |
|
|
* Checks that sync has exactly the given (shared) queued threads. |
167 |
|
|
*/ |
168 |
|
|
void assertHasSharedQueuedThreads(AbstractQueuedSynchronizer sync, |
169 |
|
|
Thread... expected) { |
170 |
|
|
assertHasQueuedThreads(sync, expected); |
171 |
|
|
assertEquals(new HashSet<Thread>(sync.getSharedQueuedThreads()), |
172 |
|
|
new HashSet<Thread>(sync.getQueuedThreads())); |
173 |
|
|
assertEquals(0, sync.getExclusiveQueuedThreads().size()); |
174 |
|
|
assertTrue(sync.getExclusiveQueuedThreads().isEmpty()); |
175 |
|
|
} |
176 |
|
|
|
177 |
|
|
/** |
178 |
|
|
* Checks that condition c has exactly the given waiter threads, |
179 |
|
|
* after acquiring mutex. |
180 |
|
|
*/ |
181 |
|
|
void assertHasWaitersUnlocked(Mutex sync, ConditionObject c, |
182 |
|
|
Thread... threads) { |
183 |
|
|
sync.acquire(); |
184 |
|
|
assertHasWaitersLocked(sync, c, threads); |
185 |
|
|
sync.release(); |
186 |
|
|
} |
187 |
|
|
|
188 |
|
|
/** |
189 |
|
|
* Checks that condition c has exactly the given waiter threads. |
190 |
|
|
*/ |
191 |
|
|
void assertHasWaitersLocked(Mutex sync, ConditionObject c, |
192 |
|
|
Thread... threads) { |
193 |
|
|
assertEquals(threads.length > 0, sync.hasWaiters(c)); |
194 |
|
|
assertEquals(threads.length, sync.getWaitQueueLength(c)); |
195 |
|
|
assertEquals(threads.length == 0, sync.getWaitingThreads(c).isEmpty()); |
196 |
|
|
assertEquals(threads.length, sync.getWaitingThreads(c).size()); |
197 |
|
|
assertEquals(new HashSet<Thread>(sync.getWaitingThreads(c)), |
198 |
|
|
new HashSet<Thread>(Arrays.asList(threads))); |
199 |
|
|
} |
200 |
|
|
|
201 |
|
|
enum AwaitMethod { await, awaitTimed, awaitNanos, awaitUntil }; |
202 |
|
|
|
203 |
|
|
/** |
204 |
|
|
* Awaits condition using the specified AwaitMethod. |
205 |
|
|
*/ |
206 |
|
|
void await(ConditionObject c, AwaitMethod awaitMethod) |
207 |
|
|
throws InterruptedException { |
208 |
|
|
long timeoutMillis = 2 * LONG_DELAY_MS; |
209 |
|
|
switch (awaitMethod) { |
210 |
|
|
case await: |
211 |
|
|
c.await(); |
212 |
|
|
break; |
213 |
|
|
case awaitTimed: |
214 |
|
|
assertTrue(c.await(timeoutMillis, MILLISECONDS)); |
215 |
|
|
break; |
216 |
|
|
case awaitNanos: |
217 |
|
|
long nanosTimeout = MILLISECONDS.toNanos(timeoutMillis); |
218 |
|
|
long nanosRemaining = c.awaitNanos(nanosTimeout); |
219 |
|
|
assertTrue(nanosRemaining > 0); |
220 |
|
|
break; |
221 |
|
|
case awaitUntil: |
222 |
|
|
assertTrue(c.awaitUntil(delayedDate(timeoutMillis))); |
223 |
|
|
break; |
224 |
|
|
} |
225 |
|
|
} |
226 |
|
|
|
227 |
|
|
/** |
228 |
|
|
* Checks that awaiting the given condition times out (using the |
229 |
|
|
* default timeout duration). |
230 |
|
|
*/ |
231 |
|
|
void assertAwaitTimesOut(ConditionObject c, AwaitMethod awaitMethod) { |
232 |
|
|
long timeoutMillis = timeoutMillis(); |
233 |
|
|
long startTime = System.nanoTime(); |
234 |
|
|
try { |
235 |
|
|
switch (awaitMethod) { |
236 |
|
|
case awaitTimed: |
237 |
|
|
assertFalse(c.await(timeoutMillis, MILLISECONDS)); |
238 |
|
|
break; |
239 |
|
|
case awaitNanos: |
240 |
|
|
long nanosTimeout = MILLISECONDS.toNanos(timeoutMillis); |
241 |
|
|
long nanosRemaining = c.awaitNanos(nanosTimeout); |
242 |
|
|
assertTrue(nanosRemaining <= 0); |
243 |
|
|
break; |
244 |
|
|
case awaitUntil: |
245 |
|
|
assertFalse(c.awaitUntil(delayedDate(timeoutMillis))); |
246 |
|
|
break; |
247 |
|
|
default: |
248 |
|
|
throw new UnsupportedOperationException(); |
249 |
|
|
} |
250 |
|
|
} catch (InterruptedException ie) { threadUnexpectedException(ie); } |
251 |
|
|
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
252 |
dl |
1.1 |
} |
253 |
dl |
1.16 |
|
254 |
|
|
/** |
255 |
|
|
* isHeldExclusively is false upon construction |
256 |
|
|
*/ |
257 |
jsr166 |
1.22 |
public void testIsHeldExclusively() { |
258 |
jsr166 |
1.41 |
Mutex sync = new Mutex(); |
259 |
|
|
assertFalse(sync.isHeldExclusively()); |
260 |
dl |
1.16 |
} |
261 |
jsr166 |
1.22 |
|
262 |
dl |
1.1 |
/** |
263 |
dl |
1.17 |
* acquiring released sync succeeds |
264 |
dl |
1.1 |
*/ |
265 |
jsr166 |
1.22 |
public void testAcquire() { |
266 |
jsr166 |
1.41 |
Mutex sync = new Mutex(); |
267 |
|
|
sync.acquire(); |
268 |
|
|
assertTrue(sync.isHeldExclusively()); |
269 |
|
|
sync.release(); |
270 |
|
|
assertFalse(sync.isHeldExclusively()); |
271 |
dl |
1.1 |
} |
272 |
|
|
|
273 |
|
|
/** |
274 |
jsr166 |
1.41 |
* tryAcquire on a released sync succeeds |
275 |
dl |
1.1 |
*/ |
276 |
jsr166 |
1.22 |
public void testTryAcquire() { |
277 |
jsr166 |
1.41 |
Mutex sync = new Mutex(); |
278 |
|
|
assertTrue(sync.tryAcquire()); |
279 |
|
|
assertTrue(sync.isHeldExclusively()); |
280 |
|
|
sync.release(); |
281 |
|
|
assertFalse(sync.isHeldExclusively()); |
282 |
dl |
1.1 |
} |
283 |
|
|
|
284 |
|
|
/** |
285 |
|
|
* hasQueuedThreads reports whether there are waiting threads |
286 |
|
|
*/ |
287 |
jsr166 |
1.41 |
public void testHasQueuedThreads() { |
288 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
289 |
jsr166 |
1.26 |
assertFalse(sync.hasQueuedThreads()); |
290 |
jsr166 |
1.41 |
sync.acquire(); |
291 |
|
|
Thread t1 = newStartedThread(new InterruptedSyncRunnable(sync)); |
292 |
|
|
waitForQueuedThread(sync, t1); |
293 |
jsr166 |
1.26 |
assertTrue(sync.hasQueuedThreads()); |
294 |
jsr166 |
1.41 |
Thread t2 = newStartedThread(new InterruptibleSyncRunnable(sync)); |
295 |
|
|
waitForQueuedThread(sync, t2); |
296 |
jsr166 |
1.26 |
assertTrue(sync.hasQueuedThreads()); |
297 |
|
|
t1.interrupt(); |
298 |
jsr166 |
1.41 |
awaitTermination(t1); |
299 |
jsr166 |
1.26 |
assertTrue(sync.hasQueuedThreads()); |
300 |
jsr166 |
1.41 |
sync.release(); |
301 |
|
|
awaitTermination(t2); |
302 |
jsr166 |
1.26 |
assertFalse(sync.hasQueuedThreads()); |
303 |
jsr166 |
1.22 |
} |
304 |
dl |
1.10 |
|
305 |
|
|
/** |
306 |
jsr166 |
1.41 |
* isQueued(null) throws NullPointerException |
307 |
dl |
1.11 |
*/ |
308 |
jsr166 |
1.22 |
public void testIsQueuedNPE() { |
309 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
310 |
dl |
1.11 |
try { |
311 |
dl |
1.17 |
sync.isQueued(null); |
312 |
dl |
1.11 |
shouldThrow(); |
313 |
jsr166 |
1.26 |
} catch (NullPointerException success) {} |
314 |
dl |
1.11 |
} |
315 |
|
|
|
316 |
|
|
/** |
317 |
jsr166 |
1.41 |
* isQueued reports whether a thread is queued |
318 |
dl |
1.10 |
*/ |
319 |
jsr166 |
1.41 |
public void testIsQueued() { |
320 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
321 |
dl |
1.17 |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
322 |
|
|
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
323 |
jsr166 |
1.26 |
assertFalse(sync.isQueued(t1)); |
324 |
|
|
assertFalse(sync.isQueued(t2)); |
325 |
jsr166 |
1.41 |
sync.acquire(); |
326 |
jsr166 |
1.26 |
t1.start(); |
327 |
jsr166 |
1.41 |
waitForQueuedThread(sync, t1); |
328 |
jsr166 |
1.26 |
assertTrue(sync.isQueued(t1)); |
329 |
jsr166 |
1.41 |
assertFalse(sync.isQueued(t2)); |
330 |
jsr166 |
1.26 |
t2.start(); |
331 |
jsr166 |
1.41 |
waitForQueuedThread(sync, t2); |
332 |
jsr166 |
1.26 |
assertTrue(sync.isQueued(t1)); |
333 |
|
|
assertTrue(sync.isQueued(t2)); |
334 |
|
|
t1.interrupt(); |
335 |
jsr166 |
1.41 |
awaitTermination(t1); |
336 |
jsr166 |
1.26 |
assertFalse(sync.isQueued(t1)); |
337 |
|
|
assertTrue(sync.isQueued(t2)); |
338 |
jsr166 |
1.41 |
sync.release(); |
339 |
|
|
awaitTermination(t2); |
340 |
jsr166 |
1.26 |
assertFalse(sync.isQueued(t1)); |
341 |
|
|
assertFalse(sync.isQueued(t2)); |
342 |
jsr166 |
1.22 |
} |
343 |
dl |
1.8 |
|
344 |
dl |
1.12 |
/** |
345 |
dl |
1.17 |
* getFirstQueuedThread returns first waiting thread or null if none |
346 |
dl |
1.12 |
*/ |
347 |
jsr166 |
1.41 |
public void testGetFirstQueuedThread() { |
348 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
349 |
jsr166 |
1.26 |
assertNull(sync.getFirstQueuedThread()); |
350 |
jsr166 |
1.41 |
sync.acquire(); |
351 |
|
|
Thread t1 = newStartedThread(new InterruptedSyncRunnable(sync)); |
352 |
|
|
waitForQueuedThread(sync, t1); |
353 |
jsr166 |
1.26 |
assertEquals(t1, sync.getFirstQueuedThread()); |
354 |
jsr166 |
1.41 |
Thread t2 = newStartedThread(new InterruptibleSyncRunnable(sync)); |
355 |
|
|
waitForQueuedThread(sync, t2); |
356 |
jsr166 |
1.26 |
assertEquals(t1, sync.getFirstQueuedThread()); |
357 |
|
|
t1.interrupt(); |
358 |
jsr166 |
1.41 |
awaitTermination(t1); |
359 |
jsr166 |
1.26 |
assertEquals(t2, sync.getFirstQueuedThread()); |
360 |
jsr166 |
1.41 |
sync.release(); |
361 |
|
|
awaitTermination(t2); |
362 |
jsr166 |
1.26 |
assertNull(sync.getFirstQueuedThread()); |
363 |
jsr166 |
1.22 |
} |
364 |
dl |
1.12 |
|
365 |
dl |
1.8 |
/** |
366 |
dl |
1.12 |
* hasContended reports false if no thread has ever blocked, else true |
367 |
dl |
1.8 |
*/ |
368 |
jsr166 |
1.41 |
public void testHasContended() { |
369 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
370 |
jsr166 |
1.26 |
assertFalse(sync.hasContended()); |
371 |
jsr166 |
1.41 |
sync.acquire(); |
372 |
|
|
assertFalse(sync.hasContended()); |
373 |
|
|
Thread t1 = newStartedThread(new InterruptedSyncRunnable(sync)); |
374 |
|
|
waitForQueuedThread(sync, t1); |
375 |
jsr166 |
1.26 |
assertTrue(sync.hasContended()); |
376 |
jsr166 |
1.41 |
Thread t2 = newStartedThread(new InterruptibleSyncRunnable(sync)); |
377 |
|
|
waitForQueuedThread(sync, t2); |
378 |
jsr166 |
1.26 |
assertTrue(sync.hasContended()); |
379 |
|
|
t1.interrupt(); |
380 |
jsr166 |
1.41 |
awaitTermination(t1); |
381 |
jsr166 |
1.26 |
assertTrue(sync.hasContended()); |
382 |
jsr166 |
1.41 |
sync.release(); |
383 |
|
|
awaitTermination(t2); |
384 |
jsr166 |
1.26 |
assertTrue(sync.hasContended()); |
385 |
jsr166 |
1.22 |
} |
386 |
dl |
1.17 |
|
387 |
|
|
/** |
388 |
jsr166 |
1.41 |
* getQueuedThreads returns all waiting threads |
389 |
dl |
1.17 |
*/ |
390 |
jsr166 |
1.41 |
public void testGetQueuedThreads() { |
391 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
392 |
dl |
1.17 |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
393 |
|
|
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
394 |
jsr166 |
1.41 |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
395 |
|
|
sync.acquire(); |
396 |
|
|
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
397 |
jsr166 |
1.26 |
t1.start(); |
398 |
jsr166 |
1.41 |
waitForQueuedThread(sync, t1); |
399 |
|
|
assertHasExclusiveQueuedThreads(sync, t1); |
400 |
jsr166 |
1.26 |
assertTrue(sync.getQueuedThreads().contains(t1)); |
401 |
jsr166 |
1.41 |
assertFalse(sync.getQueuedThreads().contains(t2)); |
402 |
jsr166 |
1.26 |
t2.start(); |
403 |
jsr166 |
1.41 |
waitForQueuedThread(sync, t2); |
404 |
|
|
assertHasExclusiveQueuedThreads(sync, t1, t2); |
405 |
jsr166 |
1.26 |
assertTrue(sync.getQueuedThreads().contains(t1)); |
406 |
|
|
assertTrue(sync.getQueuedThreads().contains(t2)); |
407 |
|
|
t1.interrupt(); |
408 |
jsr166 |
1.41 |
awaitTermination(t1); |
409 |
|
|
assertHasExclusiveQueuedThreads(sync, t2); |
410 |
|
|
sync.release(); |
411 |
|
|
awaitTermination(t2); |
412 |
|
|
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
413 |
jsr166 |
1.22 |
} |
414 |
dl |
1.17 |
|
415 |
|
|
/** |
416 |
jsr166 |
1.41 |
* getExclusiveQueuedThreads returns all exclusive waiting threads |
417 |
dl |
1.17 |
*/ |
418 |
jsr166 |
1.41 |
public void testGetExclusiveQueuedThreads() { |
419 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
420 |
dl |
1.17 |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
421 |
|
|
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
422 |
jsr166 |
1.41 |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
423 |
|
|
sync.acquire(); |
424 |
|
|
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
425 |
jsr166 |
1.26 |
t1.start(); |
426 |
jsr166 |
1.41 |
waitForQueuedThread(sync, t1); |
427 |
|
|
assertHasExclusiveQueuedThreads(sync, t1); |
428 |
jsr166 |
1.26 |
assertTrue(sync.getExclusiveQueuedThreads().contains(t1)); |
429 |
jsr166 |
1.41 |
assertFalse(sync.getExclusiveQueuedThreads().contains(t2)); |
430 |
jsr166 |
1.26 |
t2.start(); |
431 |
jsr166 |
1.41 |
waitForQueuedThread(sync, t2); |
432 |
|
|
assertHasExclusiveQueuedThreads(sync, t1, t2); |
433 |
jsr166 |
1.26 |
assertTrue(sync.getExclusiveQueuedThreads().contains(t1)); |
434 |
|
|
assertTrue(sync.getExclusiveQueuedThreads().contains(t2)); |
435 |
|
|
t1.interrupt(); |
436 |
jsr166 |
1.41 |
awaitTermination(t1); |
437 |
|
|
assertHasExclusiveQueuedThreads(sync, t2); |
438 |
|
|
sync.release(); |
439 |
|
|
awaitTermination(t2); |
440 |
|
|
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
441 |
jsr166 |
1.22 |
} |
442 |
dl |
1.17 |
|
443 |
|
|
/** |
444 |
|
|
* getSharedQueuedThreads does not include exclusively waiting threads |
445 |
|
|
*/ |
446 |
jsr166 |
1.41 |
public void testGetSharedQueuedThreads_Exclusive() { |
447 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
448 |
jsr166 |
1.26 |
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
449 |
jsr166 |
1.41 |
sync.acquire(); |
450 |
jsr166 |
1.26 |
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
451 |
jsr166 |
1.41 |
Thread t1 = newStartedThread(new InterruptedSyncRunnable(sync)); |
452 |
|
|
waitForQueuedThread(sync, t1); |
453 |
jsr166 |
1.26 |
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
454 |
jsr166 |
1.41 |
Thread t2 = newStartedThread(new InterruptibleSyncRunnable(sync)); |
455 |
|
|
waitForQueuedThread(sync, t2); |
456 |
jsr166 |
1.26 |
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
457 |
|
|
t1.interrupt(); |
458 |
jsr166 |
1.41 |
awaitTermination(t1); |
459 |
jsr166 |
1.26 |
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
460 |
jsr166 |
1.41 |
sync.release(); |
461 |
|
|
awaitTermination(t2); |
462 |
jsr166 |
1.26 |
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
463 |
jsr166 |
1.22 |
} |
464 |
dl |
1.1 |
|
465 |
|
|
/** |
466 |
jsr166 |
1.41 |
* getSharedQueuedThreads returns all shared waiting threads |
467 |
|
|
*/ |
468 |
|
|
public void testGetSharedQueuedThreads_Shared() { |
469 |
|
|
final BooleanLatch l = new BooleanLatch(); |
470 |
|
|
assertHasSharedQueuedThreads(l, NO_THREADS); |
471 |
|
|
Thread t1 = newStartedThread(new CheckedInterruptedRunnable() { |
472 |
|
|
public void realRun() throws InterruptedException { |
473 |
|
|
l.acquireSharedInterruptibly(0); |
474 |
|
|
}}); |
475 |
|
|
waitForQueuedThread(l, t1); |
476 |
|
|
assertHasSharedQueuedThreads(l, t1); |
477 |
|
|
Thread t2 = newStartedThread(new CheckedRunnable() { |
478 |
|
|
public void realRun() throws InterruptedException { |
479 |
|
|
l.acquireSharedInterruptibly(0); |
480 |
|
|
}}); |
481 |
|
|
waitForQueuedThread(l, t2); |
482 |
|
|
assertHasSharedQueuedThreads(l, t1, t2); |
483 |
|
|
t1.interrupt(); |
484 |
|
|
awaitTermination(t1); |
485 |
|
|
assertHasSharedQueuedThreads(l, t2); |
486 |
|
|
assertTrue(l.releaseShared(0)); |
487 |
|
|
awaitTermination(t2); |
488 |
|
|
assertHasSharedQueuedThreads(l, NO_THREADS); |
489 |
|
|
} |
490 |
|
|
|
491 |
|
|
/** |
492 |
|
|
* tryAcquireNanos is interruptible |
493 |
dl |
1.1 |
*/ |
494 |
jsr166 |
1.41 |
public void testTryAcquireNanos_Interruptible() { |
495 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
496 |
jsr166 |
1.41 |
sync.acquire(); |
497 |
|
|
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
498 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
499 |
jsr166 |
1.41 |
sync.tryAcquireNanos(MILLISECONDS.toNanos(2 * LONG_DELAY_MS)); |
500 |
jsr166 |
1.28 |
}}); |
501 |
jsr166 |
1.26 |
|
502 |
jsr166 |
1.41 |
waitForQueuedThread(sync, t); |
503 |
jsr166 |
1.26 |
t.interrupt(); |
504 |
jsr166 |
1.41 |
awaitTermination(t); |
505 |
dl |
1.1 |
} |
506 |
|
|
|
507 |
|
|
/** |
508 |
jsr166 |
1.41 |
* tryAcquire on exclusively held sync fails |
509 |
dl |
1.1 |
*/ |
510 |
jsr166 |
1.41 |
public void testTryAcquireWhenSynced() { |
511 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
512 |
jsr166 |
1.41 |
sync.acquire(); |
513 |
|
|
Thread t = newStartedThread(new CheckedRunnable() { |
514 |
jsr166 |
1.28 |
public void realRun() { |
515 |
jsr166 |
1.41 |
assertFalse(sync.tryAcquire()); |
516 |
jsr166 |
1.28 |
}}); |
517 |
jsr166 |
1.26 |
|
518 |
jsr166 |
1.41 |
awaitTermination(t); |
519 |
|
|
sync.release(); |
520 |
jsr166 |
1.22 |
} |
521 |
dl |
1.1 |
|
522 |
|
|
/** |
523 |
dl |
1.17 |
* tryAcquireNanos on an exclusively held sync times out |
524 |
dl |
1.1 |
*/ |
525 |
jsr166 |
1.41 |
public void testAcquireNanos_Timeout() { |
526 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
527 |
jsr166 |
1.41 |
sync.acquire(); |
528 |
|
|
Thread t = newStartedThread(new CheckedRunnable() { |
529 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
530 |
jsr166 |
1.41 |
long startTime = System.nanoTime(); |
531 |
|
|
long nanos = MILLISECONDS.toNanos(timeoutMillis()); |
532 |
|
|
assertFalse(sync.tryAcquireNanos(nanos)); |
533 |
|
|
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
534 |
jsr166 |
1.28 |
}}); |
535 |
jsr166 |
1.26 |
|
536 |
jsr166 |
1.41 |
awaitTermination(t); |
537 |
|
|
sync.release(); |
538 |
jsr166 |
1.22 |
} |
539 |
|
|
|
540 |
dl |
1.1 |
/** |
541 |
dl |
1.13 |
* getState is true when acquired and false when not |
542 |
dl |
1.1 |
*/ |
543 |
jsr166 |
1.41 |
public void testGetState() { |
544 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
545 |
jsr166 |
1.41 |
sync.acquire(); |
546 |
jsr166 |
1.29 |
assertTrue(sync.isHeldExclusively()); |
547 |
jsr166 |
1.41 |
sync.release(); |
548 |
jsr166 |
1.29 |
assertFalse(sync.isHeldExclusively()); |
549 |
jsr166 |
1.41 |
|
550 |
|
|
final BooleanLatch acquired = new BooleanLatch(); |
551 |
|
|
final BooleanLatch done = new BooleanLatch(); |
552 |
|
|
Thread t = newStartedThread(new CheckedRunnable() { |
553 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
554 |
jsr166 |
1.41 |
sync.acquire(); |
555 |
|
|
assertTrue(acquired.releaseShared(0)); |
556 |
|
|
done.acquireShared(0); |
557 |
|
|
sync.release(); |
558 |
jsr166 |
1.28 |
}}); |
559 |
jsr166 |
1.26 |
|
560 |
jsr166 |
1.41 |
acquired.acquireShared(0); |
561 |
jsr166 |
1.26 |
assertTrue(sync.isHeldExclusively()); |
562 |
jsr166 |
1.41 |
assertTrue(done.releaseShared(0)); |
563 |
|
|
awaitTermination(t); |
564 |
jsr166 |
1.26 |
assertFalse(sync.isHeldExclusively()); |
565 |
dl |
1.1 |
} |
566 |
|
|
|
567 |
|
|
/** |
568 |
jsr166 |
1.41 |
* acquireInterruptibly succeeds when released, else is interruptible |
569 |
dl |
1.1 |
*/ |
570 |
jsr166 |
1.41 |
public void testAcquireInterruptibly() throws InterruptedException { |
571 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
572 |
jsr166 |
1.41 |
final BooleanLatch threadStarted = new BooleanLatch(); |
573 |
|
|
sync.acquireInterruptibly(); |
574 |
|
|
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
575 |
|
|
public void realRun() throws InterruptedException { |
576 |
|
|
assertTrue(threadStarted.releaseShared(0)); |
577 |
|
|
sync.acquireInterruptibly(); |
578 |
|
|
}}); |
579 |
jsr166 |
1.26 |
|
580 |
jsr166 |
1.41 |
threadStarted.acquireShared(0); |
581 |
|
|
waitForQueuedThread(sync, t); |
582 |
jsr166 |
1.26 |
t.interrupt(); |
583 |
jsr166 |
1.41 |
awaitTermination(t); |
584 |
jsr166 |
1.26 |
assertTrue(sync.isHeldExclusively()); |
585 |
dl |
1.1 |
} |
586 |
|
|
|
587 |
|
|
/** |
588 |
dl |
1.17 |
* owns is true for a condition created by sync else false |
589 |
dl |
1.12 |
*/ |
590 |
|
|
public void testOwns() { |
591 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
592 |
jsr166 |
1.41 |
final ConditionObject c = sync.newCondition(); |
593 |
dl |
1.17 |
final Mutex sync2 = new Mutex(); |
594 |
|
|
assertTrue(sync.owns(c)); |
595 |
|
|
assertFalse(sync2.owns(c)); |
596 |
dl |
1.12 |
} |
597 |
|
|
|
598 |
|
|
/** |
599 |
dl |
1.17 |
* Calling await without holding sync throws IllegalMonitorStateException |
600 |
dl |
1.1 |
*/ |
601 |
jsr166 |
1.41 |
public void testAwait_IMSE() { |
602 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
603 |
jsr166 |
1.41 |
final ConditionObject c = sync.newCondition(); |
604 |
|
|
for (AwaitMethod awaitMethod : AwaitMethod.values()) { |
605 |
|
|
long startTime = System.nanoTime(); |
606 |
|
|
try { |
607 |
|
|
await(c, awaitMethod); |
608 |
|
|
shouldThrow(); |
609 |
|
|
} catch (IllegalMonitorStateException success) { |
610 |
|
|
} catch (InterruptedException e) { threadUnexpectedException(e); } |
611 |
|
|
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
612 |
|
|
} |
613 |
dl |
1.1 |
} |
614 |
|
|
|
615 |
|
|
/** |
616 |
dl |
1.17 |
* Calling signal without holding sync throws IllegalMonitorStateException |
617 |
dl |
1.1 |
*/ |
618 |
jsr166 |
1.41 |
public void testSignal_IMSE() { |
619 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
620 |
jsr166 |
1.41 |
final ConditionObject c = sync.newCondition(); |
621 |
dl |
1.1 |
try { |
622 |
|
|
c.signal(); |
623 |
|
|
shouldThrow(); |
624 |
jsr166 |
1.28 |
} catch (IllegalMonitorStateException success) {} |
625 |
jsr166 |
1.41 |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
626 |
dl |
1.1 |
} |
627 |
|
|
|
628 |
|
|
/** |
629 |
jsr166 |
1.41 |
* Calling signalAll without holding sync throws IllegalMonitorStateException |
630 |
dl |
1.1 |
*/ |
631 |
jsr166 |
1.41 |
public void testSignalAll_IMSE() { |
632 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
633 |
jsr166 |
1.41 |
final ConditionObject c = sync.newCondition(); |
634 |
|
|
try { |
635 |
|
|
c.signalAll(); |
636 |
|
|
shouldThrow(); |
637 |
|
|
} catch (IllegalMonitorStateException success) {} |
638 |
dl |
1.1 |
} |
639 |
|
|
|
640 |
|
|
/** |
641 |
jsr166 |
1.41 |
* await/awaitNanos/awaitUntil without a signal times out |
642 |
dl |
1.1 |
*/ |
643 |
jsr166 |
1.41 |
public void testAwaitTimed_Timeout() { testAwait_Timeout(AwaitMethod.awaitTimed); } |
644 |
|
|
public void testAwaitNanos_Timeout() { testAwait_Timeout(AwaitMethod.awaitNanos); } |
645 |
|
|
public void testAwaitUntil_Timeout() { testAwait_Timeout(AwaitMethod.awaitUntil); } |
646 |
|
|
public void testAwait_Timeout(AwaitMethod awaitMethod) { |
647 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
648 |
jsr166 |
1.41 |
final ConditionObject c = sync.newCondition(); |
649 |
|
|
sync.acquire(); |
650 |
|
|
assertAwaitTimesOut(c, awaitMethod); |
651 |
|
|
sync.release(); |
652 |
dl |
1.1 |
} |
653 |
|
|
|
654 |
|
|
/** |
655 |
jsr166 |
1.41 |
* await/awaitNanos/awaitUntil returns when signalled |
656 |
dl |
1.1 |
*/ |
657 |
jsr166 |
1.41 |
public void testSignal_await() { testSignal(AwaitMethod.await); } |
658 |
|
|
public void testSignal_awaitTimed() { testSignal(AwaitMethod.awaitTimed); } |
659 |
|
|
public void testSignal_awaitNanos() { testSignal(AwaitMethod.awaitNanos); } |
660 |
|
|
public void testSignal_awaitUntil() { testSignal(AwaitMethod.awaitUntil); } |
661 |
|
|
public void testSignal(final AwaitMethod awaitMethod) { |
662 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
663 |
jsr166 |
1.41 |
final ConditionObject c = sync.newCondition(); |
664 |
|
|
final BooleanLatch acquired = new BooleanLatch(); |
665 |
|
|
Thread t = newStartedThread(new CheckedRunnable() { |
666 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
667 |
jsr166 |
1.41 |
sync.acquire(); |
668 |
|
|
assertTrue(acquired.releaseShared(0)); |
669 |
|
|
await(c, awaitMethod); |
670 |
|
|
sync.release(); |
671 |
jsr166 |
1.28 |
}}); |
672 |
dl |
1.15 |
|
673 |
jsr166 |
1.41 |
acquired.acquireShared(0); |
674 |
|
|
sync.acquire(); |
675 |
|
|
assertHasWaitersLocked(sync, c, t); |
676 |
|
|
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
677 |
jsr166 |
1.26 |
c.signal(); |
678 |
jsr166 |
1.41 |
assertHasWaitersLocked(sync, c, NO_THREADS); |
679 |
|
|
assertHasExclusiveQueuedThreads(sync, t); |
680 |
|
|
sync.release(); |
681 |
|
|
awaitTermination(t); |
682 |
dl |
1.15 |
} |
683 |
|
|
|
684 |
|
|
/** |
685 |
jsr166 |
1.41 |
* hasWaiters(null) throws NullPointerException |
686 |
dl |
1.15 |
*/ |
687 |
|
|
public void testHasWaitersNPE() { |
688 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
689 |
dl |
1.15 |
try { |
690 |
dl |
1.17 |
sync.hasWaiters(null); |
691 |
dl |
1.15 |
shouldThrow(); |
692 |
jsr166 |
1.26 |
} catch (NullPointerException success) {} |
693 |
dl |
1.15 |
} |
694 |
|
|
|
695 |
|
|
/** |
696 |
jsr166 |
1.41 |
* getWaitQueueLength(null) throws NullPointerException |
697 |
dl |
1.15 |
*/ |
698 |
|
|
public void testGetWaitQueueLengthNPE() { |
699 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
700 |
dl |
1.15 |
try { |
701 |
dl |
1.17 |
sync.getWaitQueueLength(null); |
702 |
dl |
1.15 |
shouldThrow(); |
703 |
jsr166 |
1.26 |
} catch (NullPointerException success) {} |
704 |
dl |
1.15 |
} |
705 |
|
|
|
706 |
|
|
/** |
707 |
jsr166 |
1.41 |
* getWaitingThreads(null) throws NullPointerException |
708 |
dl |
1.15 |
*/ |
709 |
|
|
public void testGetWaitingThreadsNPE() { |
710 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
711 |
dl |
1.15 |
try { |
712 |
dl |
1.17 |
sync.getWaitingThreads(null); |
713 |
dl |
1.15 |
shouldThrow(); |
714 |
jsr166 |
1.26 |
} catch (NullPointerException success) {} |
715 |
dl |
1.15 |
} |
716 |
|
|
|
717 |
|
|
/** |
718 |
jsr166 |
1.41 |
* hasWaiters throws IllegalArgumentException if not owned |
719 |
dl |
1.15 |
*/ |
720 |
|
|
public void testHasWaitersIAE() { |
721 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
722 |
jsr166 |
1.41 |
final ConditionObject c = sync.newCondition(); |
723 |
jsr166 |
1.29 |
final Mutex sync2 = new Mutex(); |
724 |
dl |
1.15 |
try { |
725 |
dl |
1.17 |
sync2.hasWaiters(c); |
726 |
dl |
1.15 |
shouldThrow(); |
727 |
jsr166 |
1.26 |
} catch (IllegalArgumentException success) {} |
728 |
jsr166 |
1.41 |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
729 |
dl |
1.15 |
} |
730 |
|
|
|
731 |
|
|
/** |
732 |
jsr166 |
1.41 |
* hasWaiters throws IllegalMonitorStateException if not synced |
733 |
dl |
1.15 |
*/ |
734 |
|
|
public void testHasWaitersIMSE() { |
735 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
736 |
jsr166 |
1.41 |
final ConditionObject c = sync.newCondition(); |
737 |
dl |
1.15 |
try { |
738 |
dl |
1.17 |
sync.hasWaiters(c); |
739 |
dl |
1.15 |
shouldThrow(); |
740 |
jsr166 |
1.26 |
} catch (IllegalMonitorStateException success) {} |
741 |
jsr166 |
1.41 |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
742 |
dl |
1.15 |
} |
743 |
|
|
|
744 |
|
|
/** |
745 |
jsr166 |
1.41 |
* getWaitQueueLength throws IllegalArgumentException if not owned |
746 |
dl |
1.15 |
*/ |
747 |
|
|
public void testGetWaitQueueLengthIAE() { |
748 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
749 |
jsr166 |
1.41 |
final ConditionObject c = sync.newCondition(); |
750 |
jsr166 |
1.29 |
final Mutex sync2 = new Mutex(); |
751 |
dl |
1.15 |
try { |
752 |
dl |
1.17 |
sync2.getWaitQueueLength(c); |
753 |
dl |
1.15 |
shouldThrow(); |
754 |
jsr166 |
1.26 |
} catch (IllegalArgumentException success) {} |
755 |
jsr166 |
1.41 |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
756 |
dl |
1.15 |
} |
757 |
|
|
|
758 |
|
|
/** |
759 |
jsr166 |
1.41 |
* getWaitQueueLength throws IllegalMonitorStateException if not synced |
760 |
dl |
1.15 |
*/ |
761 |
|
|
public void testGetWaitQueueLengthIMSE() { |
762 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
763 |
jsr166 |
1.41 |
final ConditionObject c = sync.newCondition(); |
764 |
dl |
1.15 |
try { |
765 |
dl |
1.17 |
sync.getWaitQueueLength(c); |
766 |
dl |
1.15 |
shouldThrow(); |
767 |
jsr166 |
1.26 |
} catch (IllegalMonitorStateException success) {} |
768 |
jsr166 |
1.41 |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
769 |
dl |
1.15 |
} |
770 |
|
|
|
771 |
|
|
/** |
772 |
jsr166 |
1.41 |
* getWaitingThreads throws IllegalArgumentException if not owned |
773 |
dl |
1.15 |
*/ |
774 |
|
|
public void testGetWaitingThreadsIAE() { |
775 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
776 |
jsr166 |
1.41 |
final ConditionObject c = sync.newCondition(); |
777 |
jsr166 |
1.29 |
final Mutex sync2 = new Mutex(); |
778 |
dl |
1.15 |
try { |
779 |
dl |
1.17 |
sync2.getWaitingThreads(c); |
780 |
dl |
1.15 |
shouldThrow(); |
781 |
jsr166 |
1.26 |
} catch (IllegalArgumentException success) {} |
782 |
jsr166 |
1.41 |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
783 |
dl |
1.15 |
} |
784 |
|
|
|
785 |
|
|
/** |
786 |
jsr166 |
1.41 |
* getWaitingThreads throws IllegalMonitorStateException if not synced |
787 |
dl |
1.15 |
*/ |
788 |
|
|
public void testGetWaitingThreadsIMSE() { |
789 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
790 |
jsr166 |
1.41 |
final ConditionObject c = sync.newCondition(); |
791 |
dl |
1.15 |
try { |
792 |
dl |
1.17 |
sync.getWaitingThreads(c); |
793 |
dl |
1.15 |
shouldThrow(); |
794 |
jsr166 |
1.26 |
} catch (IllegalMonitorStateException success) {} |
795 |
jsr166 |
1.41 |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
796 |
dl |
1.15 |
} |
797 |
|
|
|
798 |
|
|
/** |
799 |
|
|
* hasWaiters returns true when a thread is waiting, else false |
800 |
|
|
*/ |
801 |
jsr166 |
1.41 |
public void testHasWaiters() { |
802 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
803 |
jsr166 |
1.41 |
final ConditionObject c = sync.newCondition(); |
804 |
|
|
final BooleanLatch acquired = new BooleanLatch(); |
805 |
|
|
Thread t = newStartedThread(new CheckedRunnable() { |
806 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
807 |
jsr166 |
1.41 |
sync.acquire(); |
808 |
|
|
assertHasWaitersLocked(sync, c, NO_THREADS); |
809 |
jsr166 |
1.35 |
assertFalse(sync.hasWaiters(c)); |
810 |
jsr166 |
1.41 |
assertTrue(acquired.releaseShared(0)); |
811 |
jsr166 |
1.28 |
c.await(); |
812 |
jsr166 |
1.41 |
sync.release(); |
813 |
jsr166 |
1.28 |
}}); |
814 |
dl |
1.15 |
|
815 |
jsr166 |
1.41 |
acquired.acquireShared(0); |
816 |
|
|
sync.acquire(); |
817 |
|
|
assertHasWaitersLocked(sync, c, t); |
818 |
|
|
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
819 |
jsr166 |
1.26 |
assertTrue(sync.hasWaiters(c)); |
820 |
|
|
c.signal(); |
821 |
jsr166 |
1.41 |
assertHasWaitersLocked(sync, c, NO_THREADS); |
822 |
|
|
assertHasExclusiveQueuedThreads(sync, t); |
823 |
jsr166 |
1.26 |
assertFalse(sync.hasWaiters(c)); |
824 |
jsr166 |
1.41 |
sync.release(); |
825 |
|
|
|
826 |
|
|
awaitTermination(t); |
827 |
|
|
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
828 |
dl |
1.15 |
} |
829 |
|
|
|
830 |
|
|
/** |
831 |
|
|
* getWaitQueueLength returns number of waiting threads |
832 |
|
|
*/ |
833 |
jsr166 |
1.41 |
public void testGetWaitQueueLength() { |
834 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
835 |
jsr166 |
1.41 |
final ConditionObject c = sync.newCondition(); |
836 |
|
|
final BooleanLatch acquired1 = new BooleanLatch(); |
837 |
|
|
final BooleanLatch acquired2 = new BooleanLatch(); |
838 |
|
|
final Thread t1 = newStartedThread(new CheckedRunnable() { |
839 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
840 |
jsr166 |
1.41 |
sync.acquire(); |
841 |
|
|
assertHasWaitersLocked(sync, c, NO_THREADS); |
842 |
jsr166 |
1.35 |
assertEquals(0, sync.getWaitQueueLength(c)); |
843 |
jsr166 |
1.41 |
assertTrue(acquired1.releaseShared(0)); |
844 |
jsr166 |
1.28 |
c.await(); |
845 |
jsr166 |
1.41 |
sync.release(); |
846 |
jsr166 |
1.28 |
}}); |
847 |
jsr166 |
1.41 |
acquired1.acquireShared(0); |
848 |
|
|
sync.acquire(); |
849 |
|
|
assertHasWaitersLocked(sync, c, t1); |
850 |
|
|
assertEquals(1, sync.getWaitQueueLength(c)); |
851 |
|
|
sync.release(); |
852 |
jsr166 |
1.28 |
|
853 |
jsr166 |
1.41 |
final Thread t2 = newStartedThread(new CheckedRunnable() { |
854 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
855 |
jsr166 |
1.41 |
sync.acquire(); |
856 |
|
|
assertHasWaitersLocked(sync, c, t1); |
857 |
jsr166 |
1.35 |
assertEquals(1, sync.getWaitQueueLength(c)); |
858 |
jsr166 |
1.41 |
assertTrue(acquired2.releaseShared(0)); |
859 |
jsr166 |
1.28 |
c.await(); |
860 |
jsr166 |
1.41 |
sync.release(); |
861 |
jsr166 |
1.28 |
}}); |
862 |
jsr166 |
1.41 |
acquired2.acquireShared(0); |
863 |
|
|
sync.acquire(); |
864 |
|
|
assertHasWaitersLocked(sync, c, t1, t2); |
865 |
|
|
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
866 |
jsr166 |
1.26 |
assertEquals(2, sync.getWaitQueueLength(c)); |
867 |
|
|
c.signalAll(); |
868 |
jsr166 |
1.41 |
assertHasWaitersLocked(sync, c, NO_THREADS); |
869 |
|
|
assertHasExclusiveQueuedThreads(sync, t1, t2); |
870 |
jsr166 |
1.26 |
assertEquals(0, sync.getWaitQueueLength(c)); |
871 |
jsr166 |
1.41 |
sync.release(); |
872 |
|
|
|
873 |
|
|
awaitTermination(t1); |
874 |
|
|
awaitTermination(t2); |
875 |
|
|
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
876 |
dl |
1.15 |
} |
877 |
|
|
|
878 |
|
|
/** |
879 |
|
|
* getWaitingThreads returns only and all waiting threads |
880 |
|
|
*/ |
881 |
jsr166 |
1.41 |
public void testGetWaitingThreads() { |
882 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
883 |
jsr166 |
1.41 |
final ConditionObject c = sync.newCondition(); |
884 |
|
|
final BooleanLatch acquired1 = new BooleanLatch(); |
885 |
|
|
final BooleanLatch acquired2 = new BooleanLatch(); |
886 |
|
|
final Thread t1 = new Thread(new CheckedRunnable() { |
887 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
888 |
jsr166 |
1.41 |
sync.acquire(); |
889 |
|
|
assertHasWaitersLocked(sync, c, NO_THREADS); |
890 |
jsr166 |
1.35 |
assertTrue(sync.getWaitingThreads(c).isEmpty()); |
891 |
jsr166 |
1.41 |
assertTrue(acquired1.releaseShared(0)); |
892 |
jsr166 |
1.28 |
c.await(); |
893 |
jsr166 |
1.41 |
sync.release(); |
894 |
jsr166 |
1.28 |
}}); |
895 |
|
|
|
896 |
jsr166 |
1.41 |
final Thread t2 = new Thread(new CheckedRunnable() { |
897 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
898 |
jsr166 |
1.41 |
sync.acquire(); |
899 |
|
|
assertHasWaitersLocked(sync, c, t1); |
900 |
|
|
assertTrue(sync.getWaitingThreads(c).contains(t1)); |
901 |
jsr166 |
1.35 |
assertFalse(sync.getWaitingThreads(c).isEmpty()); |
902 |
jsr166 |
1.41 |
assertEquals(1, sync.getWaitingThreads(c).size()); |
903 |
|
|
assertTrue(acquired2.releaseShared(0)); |
904 |
jsr166 |
1.28 |
c.await(); |
905 |
jsr166 |
1.41 |
sync.release(); |
906 |
jsr166 |
1.28 |
}}); |
907 |
dl |
1.1 |
|
908 |
jsr166 |
1.41 |
sync.acquire(); |
909 |
|
|
assertHasWaitersLocked(sync, c, NO_THREADS); |
910 |
|
|
assertFalse(sync.getWaitingThreads(c).contains(t1)); |
911 |
|
|
assertFalse(sync.getWaitingThreads(c).contains(t2)); |
912 |
jsr166 |
1.26 |
assertTrue(sync.getWaitingThreads(c).isEmpty()); |
913 |
jsr166 |
1.41 |
assertEquals(0, sync.getWaitingThreads(c).size()); |
914 |
|
|
sync.release(); |
915 |
|
|
|
916 |
jsr166 |
1.26 |
t1.start(); |
917 |
jsr166 |
1.41 |
acquired1.acquireShared(0); |
918 |
|
|
sync.acquire(); |
919 |
|
|
assertHasWaitersLocked(sync, c, t1); |
920 |
|
|
assertTrue(sync.getWaitingThreads(c).contains(t1)); |
921 |
|
|
assertFalse(sync.getWaitingThreads(c).contains(t2)); |
922 |
|
|
assertFalse(sync.getWaitingThreads(c).isEmpty()); |
923 |
|
|
assertEquals(1, sync.getWaitingThreads(c).size()); |
924 |
|
|
sync.release(); |
925 |
|
|
|
926 |
jsr166 |
1.26 |
t2.start(); |
927 |
jsr166 |
1.41 |
acquired2.acquireShared(0); |
928 |
|
|
sync.acquire(); |
929 |
|
|
assertHasWaitersLocked(sync, c, t1, t2); |
930 |
|
|
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
931 |
jsr166 |
1.26 |
assertTrue(sync.getWaitingThreads(c).contains(t1)); |
932 |
|
|
assertTrue(sync.getWaitingThreads(c).contains(t2)); |
933 |
jsr166 |
1.41 |
assertFalse(sync.getWaitingThreads(c).isEmpty()); |
934 |
|
|
assertEquals(2, sync.getWaitingThreads(c).size()); |
935 |
jsr166 |
1.26 |
c.signalAll(); |
936 |
jsr166 |
1.41 |
assertHasWaitersLocked(sync, c, NO_THREADS); |
937 |
|
|
assertHasExclusiveQueuedThreads(sync, t1, t2); |
938 |
|
|
assertFalse(sync.getWaitingThreads(c).contains(t1)); |
939 |
|
|
assertFalse(sync.getWaitingThreads(c).contains(t2)); |
940 |
jsr166 |
1.26 |
assertTrue(sync.getWaitingThreads(c).isEmpty()); |
941 |
jsr166 |
1.41 |
assertEquals(0, sync.getWaitingThreads(c).size()); |
942 |
|
|
sync.release(); |
943 |
|
|
|
944 |
|
|
awaitTermination(t1); |
945 |
|
|
awaitTermination(t2); |
946 |
|
|
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
947 |
dl |
1.15 |
} |
948 |
|
|
|
949 |
|
|
/** |
950 |
jsr166 |
1.42 |
* awaitUninterruptibly is uninterruptible |
951 |
dl |
1.15 |
*/ |
952 |
jsr166 |
1.41 |
public void testAwaitUninterruptibly() { |
953 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
954 |
jsr166 |
1.41 |
final ConditionObject c = sync.newCondition(); |
955 |
jsr166 |
1.42 |
final BooleanLatch pleaseInterrupt = new BooleanLatch(); |
956 |
jsr166 |
1.41 |
Thread t = newStartedThread(new CheckedRunnable() { |
957 |
jsr166 |
1.28 |
public void realRun() { |
958 |
jsr166 |
1.41 |
sync.acquire(); |
959 |
jsr166 |
1.42 |
assertTrue(pleaseInterrupt.releaseShared(0)); |
960 |
jsr166 |
1.28 |
c.awaitUninterruptibly(); |
961 |
jsr166 |
1.41 |
assertTrue(Thread.interrupted()); |
962 |
|
|
assertHasWaitersLocked(sync, c, NO_THREADS); |
963 |
|
|
sync.release(); |
964 |
jsr166 |
1.28 |
}}); |
965 |
dl |
1.15 |
|
966 |
jsr166 |
1.42 |
pleaseInterrupt.acquireShared(0); |
967 |
jsr166 |
1.41 |
sync.acquire(); |
968 |
|
|
assertHasWaitersLocked(sync, c, t); |
969 |
|
|
sync.release(); |
970 |
jsr166 |
1.26 |
t.interrupt(); |
971 |
jsr166 |
1.41 |
assertHasWaitersUnlocked(sync, c, t); |
972 |
|
|
assertThreadStaysAlive(t); |
973 |
|
|
sync.acquire(); |
974 |
|
|
assertHasWaitersLocked(sync, c, t); |
975 |
|
|
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
976 |
jsr166 |
1.26 |
c.signal(); |
977 |
jsr166 |
1.41 |
assertHasWaitersLocked(sync, c, NO_THREADS); |
978 |
|
|
assertHasExclusiveQueuedThreads(sync, t); |
979 |
|
|
sync.release(); |
980 |
|
|
awaitTermination(t); |
981 |
dl |
1.15 |
} |
982 |
|
|
|
983 |
|
|
/** |
984 |
jsr166 |
1.41 |
* await/awaitNanos/awaitUntil is interruptible |
985 |
dl |
1.15 |
*/ |
986 |
jsr166 |
1.41 |
public void testInterruptible_await() { testInterruptible(AwaitMethod.await); } |
987 |
|
|
public void testInterruptible_awaitTimed() { testInterruptible(AwaitMethod.awaitTimed); } |
988 |
|
|
public void testInterruptible_awaitNanos() { testInterruptible(AwaitMethod.awaitNanos); } |
989 |
|
|
public void testInterruptible_awaitUntil() { testInterruptible(AwaitMethod.awaitUntil); } |
990 |
|
|
public void testInterruptible(final AwaitMethod awaitMethod) { |
991 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
992 |
jsr166 |
1.41 |
final ConditionObject c = sync.newCondition(); |
993 |
jsr166 |
1.42 |
final BooleanLatch pleaseInterrupt = new BooleanLatch(); |
994 |
jsr166 |
1.41 |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
995 |
jsr166 |
1.29 |
public void realRun() throws InterruptedException { |
996 |
jsr166 |
1.41 |
sync.acquire(); |
997 |
jsr166 |
1.42 |
assertTrue(pleaseInterrupt.releaseShared(0)); |
998 |
jsr166 |
1.41 |
await(c, awaitMethod); |
999 |
jsr166 |
1.28 |
}}); |
1000 |
dl |
1.15 |
|
1001 |
jsr166 |
1.42 |
pleaseInterrupt.acquireShared(0); |
1002 |
jsr166 |
1.26 |
t.interrupt(); |
1003 |
jsr166 |
1.41 |
awaitTermination(t); |
1004 |
dl |
1.12 |
} |
1005 |
|
|
|
1006 |
dl |
1.14 |
/** |
1007 |
dl |
1.15 |
* signalAll wakes up all threads |
1008 |
|
|
*/ |
1009 |
jsr166 |
1.41 |
public void testSignalAll_await() { testSignalAll(AwaitMethod.await); } |
1010 |
|
|
public void testSignalAll_awaitTimed() { testSignalAll(AwaitMethod.awaitTimed); } |
1011 |
|
|
public void testSignalAll_awaitNanos() { testSignalAll(AwaitMethod.awaitNanos); } |
1012 |
|
|
public void testSignalAll_awaitUntil() { testSignalAll(AwaitMethod.awaitUntil); } |
1013 |
|
|
public void testSignalAll(final AwaitMethod awaitMethod) { |
1014 |
|
|
final Mutex sync = new Mutex(); |
1015 |
|
|
final ConditionObject c = sync.newCondition(); |
1016 |
|
|
final BooleanLatch acquired1 = new BooleanLatch(); |
1017 |
|
|
final BooleanLatch acquired2 = new BooleanLatch(); |
1018 |
|
|
Thread t1 = newStartedThread(new CheckedRunnable() { |
1019 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
1020 |
jsr166 |
1.41 |
sync.acquire(); |
1021 |
|
|
acquired1.releaseShared(0); |
1022 |
|
|
await(c, awaitMethod); |
1023 |
|
|
sync.release(); |
1024 |
jsr166 |
1.28 |
}}); |
1025 |
|
|
|
1026 |
jsr166 |
1.41 |
Thread t2 = newStartedThread(new CheckedRunnable() { |
1027 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
1028 |
jsr166 |
1.41 |
sync.acquire(); |
1029 |
|
|
acquired2.releaseShared(0); |
1030 |
|
|
await(c, awaitMethod); |
1031 |
|
|
sync.release(); |
1032 |
jsr166 |
1.28 |
}}); |
1033 |
dl |
1.15 |
|
1034 |
jsr166 |
1.41 |
acquired1.acquireShared(0); |
1035 |
|
|
acquired2.acquireShared(0); |
1036 |
|
|
sync.acquire(); |
1037 |
|
|
assertHasWaitersLocked(sync, c, t1, t2); |
1038 |
|
|
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
1039 |
jsr166 |
1.26 |
c.signalAll(); |
1040 |
jsr166 |
1.41 |
assertHasWaitersLocked(sync, c, NO_THREADS); |
1041 |
|
|
assertHasExclusiveQueuedThreads(sync, t1, t2); |
1042 |
|
|
sync.release(); |
1043 |
|
|
awaitTermination(t1); |
1044 |
|
|
awaitTermination(t2); |
1045 |
dl |
1.15 |
} |
1046 |
|
|
|
1047 |
|
|
/** |
1048 |
dl |
1.14 |
* toString indicates current state |
1049 |
|
|
*/ |
1050 |
|
|
public void testToString() { |
1051 |
dl |
1.17 |
Mutex sync = new Mutex(); |
1052 |
jsr166 |
1.41 |
assertTrue(sync.toString().contains("State = " + Mutex.UNLOCKED)); |
1053 |
|
|
sync.acquire(); |
1054 |
|
|
assertTrue(sync.toString().contains("State = " + Mutex.LOCKED)); |
1055 |
dl |
1.14 |
} |
1056 |
|
|
|
1057 |
|
|
/** |
1058 |
jsr166 |
1.41 |
* A serialized AQS deserializes with current state, but no queued threads |
1059 |
|
|
*/ |
1060 |
|
|
public void testSerialization() { |
1061 |
|
|
Mutex sync = new Mutex(); |
1062 |
|
|
assertFalse(serialClone(sync).isHeldExclusively()); |
1063 |
|
|
sync.acquire(); |
1064 |
|
|
Thread t = newStartedThread(new InterruptedSyncRunnable(sync)); |
1065 |
|
|
waitForQueuedThread(sync, t); |
1066 |
|
|
assertTrue(sync.isHeldExclusively()); |
1067 |
|
|
|
1068 |
|
|
Mutex clone = serialClone(sync); |
1069 |
|
|
assertTrue(clone.isHeldExclusively()); |
1070 |
|
|
assertHasExclusiveQueuedThreads(sync, t); |
1071 |
|
|
assertHasExclusiveQueuedThreads(clone, NO_THREADS); |
1072 |
|
|
t.interrupt(); |
1073 |
|
|
awaitTermination(t); |
1074 |
|
|
sync.release(); |
1075 |
|
|
assertFalse(sync.isHeldExclusively()); |
1076 |
|
|
assertTrue(clone.isHeldExclusively()); |
1077 |
|
|
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
1078 |
|
|
assertHasExclusiveQueuedThreads(clone, NO_THREADS); |
1079 |
dl |
1.14 |
} |
1080 |
|
|
|
1081 |
dl |
1.12 |
/** |
1082 |
dl |
1.15 |
* tryReleaseShared setting state changes getState |
1083 |
dl |
1.12 |
*/ |
1084 |
dl |
1.15 |
public void testGetStateWithReleaseShared() { |
1085 |
jsr166 |
1.29 |
final BooleanLatch l = new BooleanLatch(); |
1086 |
|
|
assertFalse(l.isSignalled()); |
1087 |
jsr166 |
1.41 |
assertTrue(l.releaseShared(0)); |
1088 |
jsr166 |
1.29 |
assertTrue(l.isSignalled()); |
1089 |
dl |
1.12 |
} |
1090 |
|
|
|
1091 |
|
|
/** |
1092 |
dl |
1.17 |
* releaseShared has no effect when already signalled |
1093 |
dl |
1.12 |
*/ |
1094 |
dl |
1.13 |
public void testReleaseShared() { |
1095 |
jsr166 |
1.29 |
final BooleanLatch l = new BooleanLatch(); |
1096 |
|
|
assertFalse(l.isSignalled()); |
1097 |
jsr166 |
1.41 |
assertTrue(l.releaseShared(0)); |
1098 |
jsr166 |
1.29 |
assertTrue(l.isSignalled()); |
1099 |
jsr166 |
1.41 |
assertTrue(l.releaseShared(0)); |
1100 |
jsr166 |
1.29 |
assertTrue(l.isSignalled()); |
1101 |
dl |
1.12 |
} |
1102 |
|
|
|
1103 |
|
|
/** |
1104 |
|
|
* acquireSharedInterruptibly returns after release, but not before |
1105 |
|
|
*/ |
1106 |
jsr166 |
1.41 |
public void testAcquireSharedInterruptibly() { |
1107 |
jsr166 |
1.29 |
final BooleanLatch l = new BooleanLatch(); |
1108 |
dl |
1.12 |
|
1109 |
jsr166 |
1.41 |
Thread t = newStartedThread(new CheckedRunnable() { |
1110 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
1111 |
jsr166 |
1.35 |
assertFalse(l.isSignalled()); |
1112 |
jsr166 |
1.28 |
l.acquireSharedInterruptibly(0); |
1113 |
jsr166 |
1.35 |
assertTrue(l.isSignalled()); |
1114 |
jsr166 |
1.41 |
l.acquireSharedInterruptibly(0); |
1115 |
|
|
assertTrue(l.isSignalled()); |
1116 |
jsr166 |
1.28 |
}}); |
1117 |
jsr166 |
1.26 |
|
1118 |
jsr166 |
1.41 |
waitForQueuedThread(l, t); |
1119 |
jsr166 |
1.26 |
assertFalse(l.isSignalled()); |
1120 |
jsr166 |
1.41 |
assertThreadStaysAlive(t); |
1121 |
|
|
assertHasSharedQueuedThreads(l, t); |
1122 |
|
|
assertTrue(l.releaseShared(0)); |
1123 |
jsr166 |
1.26 |
assertTrue(l.isSignalled()); |
1124 |
jsr166 |
1.41 |
awaitTermination(t); |
1125 |
dl |
1.12 |
} |
1126 |
jsr166 |
1.22 |
|
1127 |
dl |
1.12 |
/** |
1128 |
jsr166 |
1.41 |
* tryAcquireSharedNanos returns after release, but not before |
1129 |
dl |
1.12 |
*/ |
1130 |
jsr166 |
1.41 |
public void testTryAcquireSharedNanos() { |
1131 |
jsr166 |
1.29 |
final BooleanLatch l = new BooleanLatch(); |
1132 |
dl |
1.12 |
|
1133 |
jsr166 |
1.41 |
Thread t = newStartedThread(new CheckedRunnable() { |
1134 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
1135 |
jsr166 |
1.33 |
assertFalse(l.isSignalled()); |
1136 |
jsr166 |
1.41 |
long nanos = MILLISECONDS.toNanos(2 * LONG_DELAY_MS); |
1137 |
|
|
assertTrue(l.tryAcquireSharedNanos(0, nanos)); |
1138 |
|
|
assertTrue(l.isSignalled()); |
1139 |
jsr166 |
1.33 |
assertTrue(l.tryAcquireSharedNanos(0, nanos)); |
1140 |
|
|
assertTrue(l.isSignalled()); |
1141 |
jsr166 |
1.28 |
}}); |
1142 |
jsr166 |
1.26 |
|
1143 |
jsr166 |
1.41 |
waitForQueuedThread(l, t); |
1144 |
jsr166 |
1.26 |
assertFalse(l.isSignalled()); |
1145 |
jsr166 |
1.41 |
assertThreadStaysAlive(t); |
1146 |
|
|
assertTrue(l.releaseShared(0)); |
1147 |
jsr166 |
1.26 |
assertTrue(l.isSignalled()); |
1148 |
jsr166 |
1.41 |
awaitTermination(t); |
1149 |
dl |
1.12 |
} |
1150 |
jsr166 |
1.22 |
|
1151 |
dl |
1.12 |
/** |
1152 |
jsr166 |
1.41 |
* acquireSharedInterruptibly is interruptible |
1153 |
dl |
1.12 |
*/ |
1154 |
jsr166 |
1.41 |
public void testAcquireSharedInterruptibly_Interruptible() { |
1155 |
dl |
1.12 |
final BooleanLatch l = new BooleanLatch(); |
1156 |
jsr166 |
1.41 |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
1157 |
jsr166 |
1.29 |
public void realRun() throws InterruptedException { |
1158 |
jsr166 |
1.35 |
assertFalse(l.isSignalled()); |
1159 |
jsr166 |
1.28 |
l.acquireSharedInterruptibly(0); |
1160 |
|
|
}}); |
1161 |
|
|
|
1162 |
jsr166 |
1.41 |
waitForQueuedThread(l, t); |
1163 |
jsr166 |
1.26 |
assertFalse(l.isSignalled()); |
1164 |
|
|
t.interrupt(); |
1165 |
jsr166 |
1.41 |
awaitTermination(t); |
1166 |
|
|
assertFalse(l.isSignalled()); |
1167 |
dl |
1.12 |
} |
1168 |
|
|
|
1169 |
|
|
/** |
1170 |
jsr166 |
1.41 |
* tryAcquireSharedNanos is interruptible |
1171 |
dl |
1.12 |
*/ |
1172 |
jsr166 |
1.41 |
public void testTryAcquireSharedNanos_Interruptible() { |
1173 |
dl |
1.12 |
final BooleanLatch l = new BooleanLatch(); |
1174 |
jsr166 |
1.41 |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
1175 |
jsr166 |
1.29 |
public void realRun() throws InterruptedException { |
1176 |
jsr166 |
1.33 |
assertFalse(l.isSignalled()); |
1177 |
jsr166 |
1.41 |
long nanos = MILLISECONDS.toNanos(2 * LONG_DELAY_MS); |
1178 |
jsr166 |
1.33 |
l.tryAcquireSharedNanos(0, nanos); |
1179 |
jsr166 |
1.28 |
}}); |
1180 |
|
|
|
1181 |
jsr166 |
1.41 |
waitForQueuedThread(l, t); |
1182 |
jsr166 |
1.26 |
assertFalse(l.isSignalled()); |
1183 |
|
|
t.interrupt(); |
1184 |
jsr166 |
1.41 |
awaitTermination(t); |
1185 |
|
|
assertFalse(l.isSignalled()); |
1186 |
dl |
1.12 |
} |
1187 |
|
|
|
1188 |
|
|
/** |
1189 |
jsr166 |
1.41 |
* tryAcquireSharedNanos times out if not released before timeout |
1190 |
dl |
1.12 |
*/ |
1191 |
jsr166 |
1.41 |
public void testTryAcquireSharedNanos_Timeout() { |
1192 |
dl |
1.12 |
final BooleanLatch l = new BooleanLatch(); |
1193 |
jsr166 |
1.41 |
Thread t = newStartedThread(new CheckedRunnable() { |
1194 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
1195 |
jsr166 |
1.33 |
assertFalse(l.isSignalled()); |
1196 |
jsr166 |
1.41 |
long startTime = System.nanoTime(); |
1197 |
|
|
long nanos = MILLISECONDS.toNanos(timeoutMillis()); |
1198 |
jsr166 |
1.33 |
assertFalse(l.tryAcquireSharedNanos(0, nanos)); |
1199 |
jsr166 |
1.41 |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
1200 |
|
|
assertFalse(l.isSignalled()); |
1201 |
jsr166 |
1.28 |
}}); |
1202 |
|
|
|
1203 |
jsr166 |
1.41 |
waitForQueuedThread(l, t); |
1204 |
|
|
assertFalse(l.isSignalled()); |
1205 |
|
|
awaitTermination(t); |
1206 |
jsr166 |
1.26 |
assertFalse(l.isSignalled()); |
1207 |
dl |
1.1 |
} |
1208 |
dl |
1.14 |
|
1209 |
dl |
1.1 |
} |