6 |
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* Pat Fisher, Mike Judd. |
7 |
|
*/ |
8 |
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|
9 |
– |
|
10 |
– |
import junit.framework.*; |
11 |
– |
import java.util.*; |
12 |
– |
import java.util.concurrent.*; |
9 |
|
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
10 |
< |
import java.util.concurrent.locks.*; |
11 |
< |
import java.io.*; |
10 |
> |
import static java.util.concurrent.TimeUnit.NANOSECONDS; |
11 |
> |
|
12 |
> |
import java.util.Arrays; |
13 |
> |
import java.util.Collection; |
14 |
> |
import java.util.HashSet; |
15 |
> |
import java.util.concurrent.ThreadLocalRandom; |
16 |
> |
import java.util.concurrent.locks.AbstractQueuedLongSynchronizer; |
17 |
> |
import java.util.concurrent.locks.AbstractQueuedLongSynchronizer.ConditionObject; |
18 |
|
|
19 |
+ |
import junit.framework.Test; |
20 |
+ |
import junit.framework.TestSuite; |
21 |
+ |
|
22 |
+ |
@SuppressWarnings("WaitNotInLoop") // we implement spurious-wakeup freedom |
23 |
|
public class AbstractQueuedLongSynchronizerTest extends JSR166TestCase { |
24 |
|
public static void main(String[] args) { |
25 |
< |
junit.textui.TestRunner.run(suite()); |
25 |
> |
main(suite(), args); |
26 |
|
} |
27 |
|
public static Test suite() { |
28 |
|
return new TestSuite(AbstractQueuedLongSynchronizerTest.class); |
29 |
|
} |
30 |
|
|
31 |
|
/** |
32 |
< |
* A simple mutex class, adapted from the |
33 |
< |
* AbstractQueuedLongSynchronizer javadoc. Exclusive acquire tests |
34 |
< |
* exercise this as a sample user extension. Other |
35 |
< |
* methods/features of AbstractQueuedLongSynchronizerTest are tested |
36 |
< |
* via other test classes, including those for ReentrantLock, |
31 |
< |
* ReentrantReadWriteLock, and Semaphore |
32 |
> |
* A simple mutex class, adapted from the class javadoc. Exclusive |
33 |
> |
* acquire tests exercise this as a sample user extension. |
34 |
> |
* |
35 |
> |
* Unlike the javadoc sample, we don't track owner thread via |
36 |
> |
* AbstractOwnableSynchronizer methods. |
37 |
|
*/ |
38 |
|
static class Mutex extends AbstractQueuedLongSynchronizer { |
39 |
< |
// Use value > 32 bits for locked state |
40 |
< |
static final long LOCKED = 1 << 48; |
41 |
< |
public boolean isHeldExclusively() { |
42 |
< |
return getState() == LOCKED; |
39 |
> |
/** An eccentric value > 32 bits for locked synchronizer state. */ |
40 |
> |
static final long LOCKED = (1L << 63) | (1L << 15); |
41 |
> |
|
42 |
> |
static final long UNLOCKED = 0; |
43 |
> |
|
44 |
> |
/** Owner thread is untracked, so this is really just isLocked(). */ |
45 |
> |
@Override public boolean isHeldExclusively() { |
46 |
> |
long state = getState(); |
47 |
> |
assertTrue(state == UNLOCKED || state == LOCKED); |
48 |
> |
return state == LOCKED; |
49 |
|
} |
50 |
|
|
51 |
< |
public boolean tryAcquire(long acquires) { |
52 |
< |
return compareAndSetState(0, LOCKED); |
51 |
> |
@Override protected boolean tryAcquire(long acquires) { |
52 |
> |
assertEquals(LOCKED, acquires); |
53 |
> |
return compareAndSetState(UNLOCKED, LOCKED); |
54 |
|
} |
55 |
|
|
56 |
< |
public boolean tryRelease(long releases) { |
57 |
< |
if (getState() == 0) throw new IllegalMonitorStateException(); |
58 |
< |
setState(0); |
56 |
> |
@Override protected boolean tryRelease(long releases) { |
57 |
> |
if (getState() != LOCKED) throw new IllegalMonitorStateException(); |
58 |
> |
setState(UNLOCKED); |
59 |
|
return true; |
60 |
|
} |
61 |
|
|
62 |
< |
public AbstractQueuedLongSynchronizer.ConditionObject newCondition() { |
63 |
< |
return new AbstractQueuedLongSynchronizer.ConditionObject(); |
62 |
> |
public boolean tryAcquireNanos(long nanos) throws InterruptedException { |
63 |
> |
return tryAcquireNanos(LOCKED, nanos); |
64 |
|
} |
65 |
|
|
66 |
< |
} |
66 |
> |
public boolean tryAcquire() { |
67 |
> |
return tryAcquire(LOCKED); |
68 |
> |
} |
69 |
> |
|
70 |
> |
public boolean tryRelease() { |
71 |
> |
return tryRelease(LOCKED); |
72 |
> |
} |
73 |
> |
|
74 |
> |
public void acquire() { |
75 |
> |
acquire(LOCKED); |
76 |
> |
} |
77 |
> |
|
78 |
> |
public void acquireInterruptibly() throws InterruptedException { |
79 |
> |
acquireInterruptibly(LOCKED); |
80 |
> |
} |
81 |
> |
|
82 |
> |
public void release() { |
83 |
> |
release(LOCKED); |
84 |
> |
} |
85 |
|
|
86 |
+ |
/** Faux-Implements Lock.newCondition(). */ |
87 |
+ |
public ConditionObject newCondition() { |
88 |
+ |
return new ConditionObject(); |
89 |
+ |
} |
90 |
+ |
} |
91 |
|
|
92 |
|
/** |
93 |
< |
* A simple latch class, to test shared mode. |
93 |
> |
* A minimal latch class, to test shared mode. |
94 |
|
*/ |
95 |
|
static class BooleanLatch extends AbstractQueuedLongSynchronizer { |
96 |
|
public boolean isSignalled() { return getState() != 0; } |
100 |
|
} |
101 |
|
|
102 |
|
public boolean tryReleaseShared(long ignore) { |
103 |
< |
setState(1 << 62); |
103 |
> |
setState(1L << 62); |
104 |
|
return true; |
105 |
|
} |
106 |
|
} |
111 |
|
*/ |
112 |
|
class InterruptibleSyncRunnable extends CheckedRunnable { |
113 |
|
final Mutex sync; |
114 |
< |
InterruptibleSyncRunnable(Mutex l) { sync = l; } |
114 |
> |
InterruptibleSyncRunnable(Mutex sync) { this.sync = sync; } |
115 |
|
public void realRun() throws InterruptedException { |
116 |
< |
sync.acquireInterruptibly(1); |
116 |
> |
sync.acquireInterruptibly(); |
117 |
|
} |
118 |
|
} |
119 |
|
|
85 |
– |
|
120 |
|
/** |
121 |
|
* A runnable calling acquireInterruptibly that expects to be |
122 |
|
* interrupted. |
123 |
|
*/ |
124 |
|
class InterruptedSyncRunnable extends CheckedInterruptedRunnable { |
125 |
|
final Mutex sync; |
126 |
< |
InterruptedSyncRunnable(Mutex l) { sync = l; } |
126 |
> |
InterruptedSyncRunnable(Mutex sync) { this.sync = sync; } |
127 |
|
public void realRun() throws InterruptedException { |
128 |
< |
sync.acquireInterruptibly(1); |
128 |
> |
sync.acquireInterruptibly(); |
129 |
> |
} |
130 |
> |
} |
131 |
> |
|
132 |
> |
/** A constant to clarify calls to checking methods below. */ |
133 |
> |
static final Thread[] NO_THREADS = new Thread[0]; |
134 |
> |
|
135 |
> |
/** |
136 |
> |
* Spin-waits until sync.isQueued(t) becomes true. |
137 |
> |
*/ |
138 |
> |
void waitForQueuedThread(AbstractQueuedLongSynchronizer sync, |
139 |
> |
Thread t) { |
140 |
> |
long startTime = System.nanoTime(); |
141 |
> |
while (!sync.isQueued(t)) { |
142 |
> |
if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
143 |
> |
throw new AssertionError("timed out"); |
144 |
> |
Thread.yield(); |
145 |
|
} |
146 |
+ |
assertTrue(t.isAlive()); |
147 |
+ |
} |
148 |
+ |
|
149 |
+ |
/** |
150 |
+ |
* Checks that sync has exactly the given queued threads. |
151 |
+ |
*/ |
152 |
+ |
void assertHasQueuedThreads(AbstractQueuedLongSynchronizer sync, |
153 |
+ |
Thread... expected) { |
154 |
+ |
Collection<Thread> actual = sync.getQueuedThreads(); |
155 |
+ |
assertEquals(expected.length > 0, sync.hasQueuedThreads()); |
156 |
+ |
assertEquals(expected.length, sync.getQueueLength()); |
157 |
+ |
assertEquals(expected.length, actual.size()); |
158 |
+ |
assertEquals(expected.length == 0, actual.isEmpty()); |
159 |
+ |
assertEquals(new HashSet<Thread>(actual), |
160 |
+ |
new HashSet<Thread>(Arrays.asList(expected))); |
161 |
+ |
} |
162 |
+ |
|
163 |
+ |
/** |
164 |
+ |
* Checks that sync has exactly the given (exclusive) queued threads. |
165 |
+ |
*/ |
166 |
+ |
void assertHasExclusiveQueuedThreads(AbstractQueuedLongSynchronizer sync, |
167 |
+ |
Thread... expected) { |
168 |
+ |
assertHasQueuedThreads(sync, expected); |
169 |
+ |
assertEquals(new HashSet<Thread>(sync.getExclusiveQueuedThreads()), |
170 |
+ |
new HashSet<Thread>(sync.getQueuedThreads())); |
171 |
+ |
assertEquals(0, sync.getSharedQueuedThreads().size()); |
172 |
+ |
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
173 |
+ |
} |
174 |
+ |
|
175 |
+ |
/** |
176 |
+ |
* Checks that sync has exactly the given (shared) queued threads. |
177 |
+ |
*/ |
178 |
+ |
void assertHasSharedQueuedThreads(AbstractQueuedLongSynchronizer sync, |
179 |
+ |
Thread... expected) { |
180 |
+ |
assertHasQueuedThreads(sync, expected); |
181 |
+ |
assertEquals(new HashSet<Thread>(sync.getSharedQueuedThreads()), |
182 |
+ |
new HashSet<Thread>(sync.getQueuedThreads())); |
183 |
+ |
assertEquals(0, sync.getExclusiveQueuedThreads().size()); |
184 |
+ |
assertTrue(sync.getExclusiveQueuedThreads().isEmpty()); |
185 |
+ |
} |
186 |
+ |
|
187 |
+ |
/** |
188 |
+ |
* Checks that condition c has exactly the given waiter threads, |
189 |
+ |
* after acquiring mutex. |
190 |
+ |
*/ |
191 |
+ |
void assertHasWaitersUnlocked(Mutex sync, ConditionObject c, |
192 |
+ |
Thread... threads) { |
193 |
+ |
sync.acquire(); |
194 |
+ |
assertHasWaitersLocked(sync, c, threads); |
195 |
+ |
sync.release(); |
196 |
+ |
} |
197 |
+ |
|
198 |
+ |
/** |
199 |
+ |
* Checks that condition c has exactly the given waiter threads. |
200 |
+ |
*/ |
201 |
+ |
void assertHasWaitersLocked(Mutex sync, ConditionObject c, |
202 |
+ |
Thread... threads) { |
203 |
+ |
assertEquals(threads.length > 0, sync.hasWaiters(c)); |
204 |
+ |
assertEquals(threads.length, sync.getWaitQueueLength(c)); |
205 |
+ |
assertEquals(threads.length == 0, sync.getWaitingThreads(c).isEmpty()); |
206 |
+ |
assertEquals(threads.length, sync.getWaitingThreads(c).size()); |
207 |
+ |
assertEquals(new HashSet<Thread>(sync.getWaitingThreads(c)), |
208 |
+ |
new HashSet<Thread>(Arrays.asList(threads))); |
209 |
+ |
} |
210 |
+ |
|
211 |
+ |
enum AwaitMethod { await, awaitTimed, awaitNanos, awaitUntil } |
212 |
+ |
|
213 |
+ |
/** |
214 |
+ |
* Awaits condition using the specified AwaitMethod. |
215 |
+ |
*/ |
216 |
+ |
void await(ConditionObject c, AwaitMethod awaitMethod) |
217 |
+ |
throws InterruptedException { |
218 |
+ |
long timeoutMillis = 2 * LONG_DELAY_MS; |
219 |
+ |
switch (awaitMethod) { |
220 |
+ |
case await: |
221 |
+ |
c.await(); |
222 |
+ |
break; |
223 |
+ |
case awaitTimed: |
224 |
+ |
assertTrue(c.await(timeoutMillis, MILLISECONDS)); |
225 |
+ |
break; |
226 |
+ |
case awaitNanos: |
227 |
+ |
long timeoutNanos = MILLISECONDS.toNanos(timeoutMillis); |
228 |
+ |
long nanosRemaining = c.awaitNanos(timeoutNanos); |
229 |
+ |
assertTrue(nanosRemaining > 0); |
230 |
+ |
break; |
231 |
+ |
case awaitUntil: |
232 |
+ |
assertTrue(c.awaitUntil(delayedDate(timeoutMillis))); |
233 |
+ |
break; |
234 |
+ |
default: |
235 |
+ |
throw new AssertionError(); |
236 |
+ |
} |
237 |
+ |
} |
238 |
+ |
|
239 |
+ |
/** |
240 |
+ |
* Checks that awaiting the given condition times out (using the |
241 |
+ |
* default timeout duration). |
242 |
+ |
*/ |
243 |
+ |
void assertAwaitTimesOut(ConditionObject c, AwaitMethod awaitMethod) { |
244 |
+ |
final long timeoutMillis = timeoutMillis(); |
245 |
+ |
final long startTime; |
246 |
+ |
try { |
247 |
+ |
switch (awaitMethod) { |
248 |
+ |
case awaitTimed: |
249 |
+ |
startTime = System.nanoTime(); |
250 |
+ |
assertFalse(c.await(timeoutMillis, MILLISECONDS)); |
251 |
+ |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
252 |
+ |
break; |
253 |
+ |
case awaitNanos: |
254 |
+ |
startTime = System.nanoTime(); |
255 |
+ |
long timeoutNanos = MILLISECONDS.toNanos(timeoutMillis); |
256 |
+ |
long nanosRemaining = c.awaitNanos(timeoutNanos); |
257 |
+ |
assertTrue(nanosRemaining <= 0); |
258 |
+ |
assertTrue(nanosRemaining > -MILLISECONDS.toNanos(LONG_DELAY_MS)); |
259 |
+ |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
260 |
+ |
break; |
261 |
+ |
case awaitUntil: |
262 |
+ |
// We shouldn't assume that nanoTime and currentTimeMillis |
263 |
+ |
// use the same time source, so don't use nanoTime here. |
264 |
+ |
java.util.Date delayedDate = delayedDate(timeoutMillis); |
265 |
+ |
assertFalse(c.awaitUntil(delayedDate(timeoutMillis))); |
266 |
+ |
assertTrue(new java.util.Date().getTime() >= delayedDate.getTime()); |
267 |
+ |
break; |
268 |
+ |
default: |
269 |
+ |
throw new UnsupportedOperationException(); |
270 |
+ |
} |
271 |
+ |
} catch (InterruptedException ie) { threadUnexpectedException(ie); } |
272 |
|
} |
273 |
|
|
274 |
|
/** |
275 |
|
* isHeldExclusively is false upon construction |
276 |
|
*/ |
277 |
|
public void testIsHeldExclusively() { |
278 |
< |
Mutex rl = new Mutex(); |
279 |
< |
assertFalse(rl.isHeldExclusively()); |
278 |
> |
Mutex sync = new Mutex(); |
279 |
> |
assertFalse(sync.isHeldExclusively()); |
280 |
|
} |
281 |
|
|
282 |
|
/** |
283 |
|
* acquiring released sync succeeds |
284 |
|
*/ |
285 |
|
public void testAcquire() { |
286 |
< |
Mutex rl = new Mutex(); |
287 |
< |
rl.acquire(1); |
288 |
< |
assertTrue(rl.isHeldExclusively()); |
289 |
< |
rl.release(1); |
290 |
< |
assertFalse(rl.isHeldExclusively()); |
286 |
> |
Mutex sync = new Mutex(); |
287 |
> |
sync.acquire(); |
288 |
> |
assertTrue(sync.isHeldExclusively()); |
289 |
> |
sync.release(); |
290 |
> |
assertFalse(sync.isHeldExclusively()); |
291 |
|
} |
292 |
|
|
293 |
|
/** |
294 |
< |
* tryAcquire on an released sync succeeds |
294 |
> |
* tryAcquire on a released sync succeeds |
295 |
|
*/ |
296 |
|
public void testTryAcquire() { |
297 |
< |
Mutex rl = new Mutex(); |
298 |
< |
assertTrue(rl.tryAcquire(1)); |
299 |
< |
assertTrue(rl.isHeldExclusively()); |
300 |
< |
rl.release(1); |
297 |
> |
Mutex sync = new Mutex(); |
298 |
> |
assertTrue(sync.tryAcquire()); |
299 |
> |
assertTrue(sync.isHeldExclusively()); |
300 |
> |
sync.release(); |
301 |
> |
assertFalse(sync.isHeldExclusively()); |
302 |
|
} |
303 |
|
|
304 |
|
/** |
305 |
|
* hasQueuedThreads reports whether there are waiting threads |
306 |
|
*/ |
307 |
< |
public void testhasQueuedThreads() throws InterruptedException { |
307 |
> |
public void testHasQueuedThreads() { |
308 |
|
final Mutex sync = new Mutex(); |
132 |
– |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
133 |
– |
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
309 |
|
assertFalse(sync.hasQueuedThreads()); |
310 |
< |
sync.acquire(1); |
311 |
< |
t1.start(); |
312 |
< |
Thread.sleep(SHORT_DELAY_MS); |
310 |
> |
sync.acquire(); |
311 |
> |
Thread t1 = newStartedThread(new InterruptedSyncRunnable(sync)); |
312 |
> |
waitForQueuedThread(sync, t1); |
313 |
|
assertTrue(sync.hasQueuedThreads()); |
314 |
< |
t2.start(); |
315 |
< |
Thread.sleep(SHORT_DELAY_MS); |
314 |
> |
Thread t2 = newStartedThread(new InterruptibleSyncRunnable(sync)); |
315 |
> |
waitForQueuedThread(sync, t2); |
316 |
|
assertTrue(sync.hasQueuedThreads()); |
317 |
|
t1.interrupt(); |
318 |
< |
Thread.sleep(SHORT_DELAY_MS); |
318 |
> |
awaitTermination(t1); |
319 |
|
assertTrue(sync.hasQueuedThreads()); |
320 |
< |
sync.release(1); |
321 |
< |
Thread.sleep(SHORT_DELAY_MS); |
320 |
> |
sync.release(); |
321 |
> |
awaitTermination(t2); |
322 |
|
assertFalse(sync.hasQueuedThreads()); |
148 |
– |
t1.join(); |
149 |
– |
t2.join(); |
323 |
|
} |
324 |
|
|
325 |
|
/** |
326 |
< |
* isQueued(null) throws NPE |
326 |
> |
* isQueued(null) throws NullPointerException |
327 |
|
*/ |
328 |
|
public void testIsQueuedNPE() { |
329 |
|
final Mutex sync = new Mutex(); |
334 |
|
} |
335 |
|
|
336 |
|
/** |
337 |
< |
* isQueued reports whether a thread is queued. |
337 |
> |
* isQueued reports whether a thread is queued |
338 |
|
*/ |
339 |
< |
public void testIsQueued() throws InterruptedException { |
339 |
> |
public void testIsQueued() { |
340 |
|
final Mutex sync = new Mutex(); |
341 |
|
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
342 |
|
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
343 |
|
assertFalse(sync.isQueued(t1)); |
344 |
|
assertFalse(sync.isQueued(t2)); |
345 |
< |
sync.acquire(1); |
345 |
> |
sync.acquire(); |
346 |
|
t1.start(); |
347 |
< |
Thread.sleep(SHORT_DELAY_MS); |
347 |
> |
waitForQueuedThread(sync, t1); |
348 |
|
assertTrue(sync.isQueued(t1)); |
349 |
+ |
assertFalse(sync.isQueued(t2)); |
350 |
|
t2.start(); |
351 |
< |
Thread.sleep(SHORT_DELAY_MS); |
351 |
> |
waitForQueuedThread(sync, t2); |
352 |
|
assertTrue(sync.isQueued(t1)); |
353 |
|
assertTrue(sync.isQueued(t2)); |
354 |
|
t1.interrupt(); |
355 |
< |
Thread.sleep(SHORT_DELAY_MS); |
355 |
> |
awaitTermination(t1); |
356 |
|
assertFalse(sync.isQueued(t1)); |
357 |
|
assertTrue(sync.isQueued(t2)); |
358 |
< |
sync.release(1); |
359 |
< |
Thread.sleep(SHORT_DELAY_MS); |
358 |
> |
sync.release(); |
359 |
> |
awaitTermination(t2); |
360 |
|
assertFalse(sync.isQueued(t1)); |
187 |
– |
Thread.sleep(SHORT_DELAY_MS); |
361 |
|
assertFalse(sync.isQueued(t2)); |
189 |
– |
t1.join(); |
190 |
– |
t2.join(); |
362 |
|
} |
363 |
|
|
364 |
|
/** |
365 |
|
* getFirstQueuedThread returns first waiting thread or null if none |
366 |
|
*/ |
367 |
< |
public void testGetFirstQueuedThread() throws InterruptedException { |
367 |
> |
public void testGetFirstQueuedThread() { |
368 |
|
final Mutex sync = new Mutex(); |
198 |
– |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
199 |
– |
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
369 |
|
assertNull(sync.getFirstQueuedThread()); |
370 |
< |
sync.acquire(1); |
371 |
< |
t1.start(); |
372 |
< |
Thread.sleep(SHORT_DELAY_MS); |
370 |
> |
sync.acquire(); |
371 |
> |
Thread t1 = newStartedThread(new InterruptedSyncRunnable(sync)); |
372 |
> |
waitForQueuedThread(sync, t1); |
373 |
|
assertEquals(t1, sync.getFirstQueuedThread()); |
374 |
< |
t2.start(); |
375 |
< |
Thread.sleep(SHORT_DELAY_MS); |
374 |
> |
Thread t2 = newStartedThread(new InterruptibleSyncRunnable(sync)); |
375 |
> |
waitForQueuedThread(sync, t2); |
376 |
|
assertEquals(t1, sync.getFirstQueuedThread()); |
377 |
|
t1.interrupt(); |
378 |
< |
Thread.sleep(SHORT_DELAY_MS); |
210 |
< |
Thread.sleep(SHORT_DELAY_MS); |
378 |
> |
awaitTermination(t1); |
379 |
|
assertEquals(t2, sync.getFirstQueuedThread()); |
380 |
< |
sync.release(1); |
381 |
< |
Thread.sleep(SHORT_DELAY_MS); |
380 |
> |
sync.release(); |
381 |
> |
awaitTermination(t2); |
382 |
|
assertNull(sync.getFirstQueuedThread()); |
215 |
– |
t1.join(); |
216 |
– |
t2.join(); |
383 |
|
} |
384 |
|
|
219 |
– |
|
385 |
|
/** |
386 |
|
* hasContended reports false if no thread has ever blocked, else true |
387 |
|
*/ |
388 |
< |
public void testHasContended() throws InterruptedException { |
388 |
> |
public void testHasContended() { |
389 |
|
final Mutex sync = new Mutex(); |
225 |
– |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
226 |
– |
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
390 |
|
assertFalse(sync.hasContended()); |
391 |
< |
sync.acquire(1); |
392 |
< |
t1.start(); |
393 |
< |
Thread.sleep(SHORT_DELAY_MS); |
391 |
> |
sync.acquire(); |
392 |
> |
assertFalse(sync.hasContended()); |
393 |
> |
Thread t1 = newStartedThread(new InterruptedSyncRunnable(sync)); |
394 |
> |
waitForQueuedThread(sync, t1); |
395 |
|
assertTrue(sync.hasContended()); |
396 |
< |
t2.start(); |
397 |
< |
Thread.sleep(SHORT_DELAY_MS); |
396 |
> |
Thread t2 = newStartedThread(new InterruptibleSyncRunnable(sync)); |
397 |
> |
waitForQueuedThread(sync, t2); |
398 |
|
assertTrue(sync.hasContended()); |
399 |
|
t1.interrupt(); |
400 |
< |
Thread.sleep(SHORT_DELAY_MS); |
400 |
> |
awaitTermination(t1); |
401 |
|
assertTrue(sync.hasContended()); |
402 |
< |
sync.release(1); |
403 |
< |
Thread.sleep(SHORT_DELAY_MS); |
402 |
> |
sync.release(); |
403 |
> |
awaitTermination(t2); |
404 |
|
assertTrue(sync.hasContended()); |
241 |
– |
t1.join(); |
242 |
– |
t2.join(); |
405 |
|
} |
406 |
|
|
407 |
|
/** |
408 |
< |
* getQueuedThreads includes waiting threads |
408 |
> |
* getQueuedThreads returns all waiting threads |
409 |
|
*/ |
410 |
< |
public void testGetQueuedThreads() throws InterruptedException { |
410 |
> |
public void testGetQueuedThreads() { |
411 |
|
final Mutex sync = new Mutex(); |
412 |
|
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
413 |
|
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
414 |
< |
assertTrue(sync.getQueuedThreads().isEmpty()); |
415 |
< |
sync.acquire(1); |
416 |
< |
assertTrue(sync.getQueuedThreads().isEmpty()); |
414 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
415 |
> |
sync.acquire(); |
416 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
417 |
|
t1.start(); |
418 |
< |
Thread.sleep(SHORT_DELAY_MS); |
418 |
> |
waitForQueuedThread(sync, t1); |
419 |
> |
assertHasExclusiveQueuedThreads(sync, t1); |
420 |
|
assertTrue(sync.getQueuedThreads().contains(t1)); |
421 |
+ |
assertFalse(sync.getQueuedThreads().contains(t2)); |
422 |
|
t2.start(); |
423 |
< |
Thread.sleep(SHORT_DELAY_MS); |
423 |
> |
waitForQueuedThread(sync, t2); |
424 |
> |
assertHasExclusiveQueuedThreads(sync, t1, t2); |
425 |
|
assertTrue(sync.getQueuedThreads().contains(t1)); |
426 |
|
assertTrue(sync.getQueuedThreads().contains(t2)); |
427 |
|
t1.interrupt(); |
428 |
< |
Thread.sleep(SHORT_DELAY_MS); |
429 |
< |
assertFalse(sync.getQueuedThreads().contains(t1)); |
430 |
< |
assertTrue(sync.getQueuedThreads().contains(t2)); |
431 |
< |
sync.release(1); |
432 |
< |
Thread.sleep(SHORT_DELAY_MS); |
268 |
< |
assertTrue(sync.getQueuedThreads().isEmpty()); |
269 |
< |
t1.join(); |
270 |
< |
t2.join(); |
428 |
> |
awaitTermination(t1); |
429 |
> |
assertHasExclusiveQueuedThreads(sync, t2); |
430 |
> |
sync.release(); |
431 |
> |
awaitTermination(t2); |
432 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
433 |
|
} |
434 |
|
|
435 |
|
/** |
436 |
< |
* getExclusiveQueuedThreads includes waiting threads |
436 |
> |
* getExclusiveQueuedThreads returns all exclusive waiting threads |
437 |
|
*/ |
438 |
< |
public void testGetExclusiveQueuedThreads() throws InterruptedException { |
438 |
> |
public void testGetExclusiveQueuedThreads() { |
439 |
|
final Mutex sync = new Mutex(); |
440 |
|
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
441 |
|
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
442 |
< |
assertTrue(sync.getExclusiveQueuedThreads().isEmpty()); |
443 |
< |
sync.acquire(1); |
444 |
< |
assertTrue(sync.getExclusiveQueuedThreads().isEmpty()); |
442 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
443 |
> |
sync.acquire(); |
444 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
445 |
|
t1.start(); |
446 |
< |
Thread.sleep(SHORT_DELAY_MS); |
446 |
> |
waitForQueuedThread(sync, t1); |
447 |
> |
assertHasExclusiveQueuedThreads(sync, t1); |
448 |
|
assertTrue(sync.getExclusiveQueuedThreads().contains(t1)); |
449 |
+ |
assertFalse(sync.getExclusiveQueuedThreads().contains(t2)); |
450 |
|
t2.start(); |
451 |
< |
Thread.sleep(SHORT_DELAY_MS); |
451 |
> |
waitForQueuedThread(sync, t2); |
452 |
> |
assertHasExclusiveQueuedThreads(sync, t1, t2); |
453 |
|
assertTrue(sync.getExclusiveQueuedThreads().contains(t1)); |
454 |
|
assertTrue(sync.getExclusiveQueuedThreads().contains(t2)); |
455 |
|
t1.interrupt(); |
456 |
< |
Thread.sleep(SHORT_DELAY_MS); |
457 |
< |
assertFalse(sync.getExclusiveQueuedThreads().contains(t1)); |
458 |
< |
assertTrue(sync.getExclusiveQueuedThreads().contains(t2)); |
459 |
< |
sync.release(1); |
460 |
< |
Thread.sleep(SHORT_DELAY_MS); |
296 |
< |
assertTrue(sync.getExclusiveQueuedThreads().isEmpty()); |
297 |
< |
t1.join(); |
298 |
< |
t2.join(); |
456 |
> |
awaitTermination(t1); |
457 |
> |
assertHasExclusiveQueuedThreads(sync, t2); |
458 |
> |
sync.release(); |
459 |
> |
awaitTermination(t2); |
460 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
461 |
|
} |
462 |
|
|
463 |
|
/** |
464 |
|
* getSharedQueuedThreads does not include exclusively waiting threads |
465 |
|
*/ |
466 |
< |
public void testGetSharedQueuedThreads() throws InterruptedException { |
466 |
> |
public void testGetSharedQueuedThreads_Exclusive() { |
467 |
|
final Mutex sync = new Mutex(); |
306 |
– |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
307 |
– |
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
468 |
|
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
469 |
< |
sync.acquire(1); |
469 |
> |
sync.acquire(); |
470 |
|
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
471 |
< |
t1.start(); |
472 |
< |
Thread.sleep(SHORT_DELAY_MS); |
471 |
> |
Thread t1 = newStartedThread(new InterruptedSyncRunnable(sync)); |
472 |
> |
waitForQueuedThread(sync, t1); |
473 |
|
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
474 |
< |
t2.start(); |
475 |
< |
Thread.sleep(SHORT_DELAY_MS); |
474 |
> |
Thread t2 = newStartedThread(new InterruptibleSyncRunnable(sync)); |
475 |
> |
waitForQueuedThread(sync, t2); |
476 |
|
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
477 |
|
t1.interrupt(); |
478 |
< |
Thread.sleep(SHORT_DELAY_MS); |
478 |
> |
awaitTermination(t1); |
479 |
|
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
480 |
< |
sync.release(1); |
481 |
< |
Thread.sleep(SHORT_DELAY_MS); |
480 |
> |
sync.release(); |
481 |
> |
awaitTermination(t2); |
482 |
|
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
323 |
– |
t1.join(); |
324 |
– |
t2.join(); |
483 |
|
} |
484 |
|
|
485 |
|
/** |
486 |
< |
* tryAcquireNanos is interruptible. |
486 |
> |
* getSharedQueuedThreads returns all shared waiting threads |
487 |
|
*/ |
488 |
< |
public void testInterruptedException2() throws InterruptedException { |
488 |
> |
public void testGetSharedQueuedThreads_Shared() { |
489 |
> |
final BooleanLatch l = new BooleanLatch(); |
490 |
> |
assertHasSharedQueuedThreads(l, NO_THREADS); |
491 |
> |
Thread t1 = newStartedThread(new CheckedInterruptedRunnable() { |
492 |
> |
public void realRun() throws InterruptedException { |
493 |
> |
l.acquireSharedInterruptibly(0); |
494 |
> |
}}); |
495 |
> |
waitForQueuedThread(l, t1); |
496 |
> |
assertHasSharedQueuedThreads(l, t1); |
497 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
498 |
> |
public void realRun() throws InterruptedException { |
499 |
> |
l.acquireSharedInterruptibly(0); |
500 |
> |
}}); |
501 |
> |
waitForQueuedThread(l, t2); |
502 |
> |
assertHasSharedQueuedThreads(l, t1, t2); |
503 |
> |
t1.interrupt(); |
504 |
> |
awaitTermination(t1); |
505 |
> |
assertHasSharedQueuedThreads(l, t2); |
506 |
> |
assertTrue(l.releaseShared(0)); |
507 |
> |
awaitTermination(t2); |
508 |
> |
assertHasSharedQueuedThreads(l, NO_THREADS); |
509 |
> |
} |
510 |
> |
|
511 |
> |
/** |
512 |
> |
* tryAcquireNanos is interruptible |
513 |
> |
*/ |
514 |
> |
public void testTryAcquireNanos_Interruptible() { |
515 |
|
final Mutex sync = new Mutex(); |
516 |
< |
sync.acquire(1); |
517 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
516 |
> |
sync.acquire(); |
517 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
518 |
|
public void realRun() throws InterruptedException { |
519 |
< |
sync.tryAcquireNanos(1, MILLISECONDS.toNanos(MEDIUM_DELAY_MS)); |
519 |
> |
sync.tryAcquireNanos(MILLISECONDS.toNanos(2 * LONG_DELAY_MS)); |
520 |
|
}}); |
521 |
|
|
522 |
< |
t.start(); |
339 |
< |
Thread.sleep(SHORT_DELAY_MS); |
522 |
> |
waitForQueuedThread(sync, t); |
523 |
|
t.interrupt(); |
524 |
< |
t.join(); |
524 |
> |
awaitTermination(t); |
525 |
|
} |
526 |
|
|
344 |
– |
|
527 |
|
/** |
528 |
< |
* TryAcquire on exclusively held sync fails |
528 |
> |
* tryAcquire on exclusively held sync fails |
529 |
|
*/ |
530 |
< |
public void testTryAcquireWhenSynced() throws InterruptedException { |
530 |
> |
public void testTryAcquireWhenSynced() { |
531 |
|
final Mutex sync = new Mutex(); |
532 |
< |
sync.acquire(1); |
533 |
< |
Thread t = new Thread(new CheckedRunnable() { |
532 |
> |
sync.acquire(); |
533 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
534 |
|
public void realRun() { |
535 |
< |
assertFalse(sync.tryAcquire(1)); |
535 |
> |
assertFalse(sync.tryAcquire()); |
536 |
|
}}); |
537 |
|
|
538 |
< |
t.start(); |
539 |
< |
t.join(); |
358 |
< |
sync.release(1); |
538 |
> |
awaitTermination(t); |
539 |
> |
sync.release(); |
540 |
|
} |
541 |
|
|
542 |
|
/** |
543 |
|
* tryAcquireNanos on an exclusively held sync times out |
544 |
|
*/ |
545 |
< |
public void testAcquireNanos_Timeout() throws InterruptedException { |
545 |
> |
public void testAcquireNanos_Timeout() { |
546 |
|
final Mutex sync = new Mutex(); |
547 |
< |
sync.acquire(1); |
548 |
< |
Thread t = new Thread(new CheckedRunnable() { |
547 |
> |
sync.acquire(); |
548 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
549 |
|
public void realRun() throws InterruptedException { |
550 |
< |
long nanos = MILLISECONDS.toNanos(SHORT_DELAY_MS); |
551 |
< |
assertFalse(sync.tryAcquireNanos(1, nanos)); |
550 |
> |
long startTime = System.nanoTime(); |
551 |
> |
long nanos = MILLISECONDS.toNanos(timeoutMillis()); |
552 |
> |
assertFalse(sync.tryAcquireNanos(nanos)); |
553 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
554 |
|
}}); |
555 |
|
|
556 |
< |
t.start(); |
557 |
< |
t.join(); |
375 |
< |
sync.release(1); |
556 |
> |
awaitTermination(t); |
557 |
> |
sync.release(); |
558 |
|
} |
559 |
|
|
378 |
– |
|
560 |
|
/** |
561 |
|
* getState is true when acquired and false when not |
562 |
|
*/ |
563 |
< |
public void testGetState() throws InterruptedException { |
563 |
> |
public void testGetState() { |
564 |
|
final Mutex sync = new Mutex(); |
565 |
< |
sync.acquire(1); |
565 |
> |
sync.acquire(); |
566 |
|
assertTrue(sync.isHeldExclusively()); |
567 |
< |
sync.release(1); |
567 |
> |
sync.release(); |
568 |
|
assertFalse(sync.isHeldExclusively()); |
569 |
< |
Thread t = new Thread(new CheckedRunnable() { |
569 |
> |
|
570 |
> |
final BooleanLatch acquired = new BooleanLatch(); |
571 |
> |
final BooleanLatch done = new BooleanLatch(); |
572 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
573 |
|
public void realRun() throws InterruptedException { |
574 |
< |
sync.acquire(1); |
575 |
< |
Thread.sleep(SMALL_DELAY_MS); |
576 |
< |
sync.release(1); |
574 |
> |
sync.acquire(); |
575 |
> |
assertTrue(acquired.releaseShared(0)); |
576 |
> |
done.acquireShared(0); |
577 |
> |
sync.release(); |
578 |
|
}}); |
579 |
|
|
580 |
< |
t.start(); |
396 |
< |
Thread.sleep(SHORT_DELAY_MS); |
580 |
> |
acquired.acquireShared(0); |
581 |
|
assertTrue(sync.isHeldExclusively()); |
582 |
< |
t.join(); |
582 |
> |
assertTrue(done.releaseShared(0)); |
583 |
> |
awaitTermination(t); |
584 |
|
assertFalse(sync.isHeldExclusively()); |
585 |
|
} |
586 |
|
|
402 |
– |
|
403 |
– |
/** |
404 |
– |
* acquireInterruptibly is interruptible. |
405 |
– |
*/ |
406 |
– |
public void testAcquireInterruptibly1() throws InterruptedException { |
407 |
– |
final Mutex sync = new Mutex(); |
408 |
– |
sync.acquire(1); |
409 |
– |
Thread t = new Thread(new InterruptedSyncRunnable(sync)); |
410 |
– |
t.start(); |
411 |
– |
Thread.sleep(SHORT_DELAY_MS); |
412 |
– |
t.interrupt(); |
413 |
– |
Thread.sleep(SHORT_DELAY_MS); |
414 |
– |
sync.release(1); |
415 |
– |
t.join(); |
416 |
– |
} |
417 |
– |
|
587 |
|
/** |
588 |
|
* acquireInterruptibly succeeds when released, else is interruptible |
589 |
|
*/ |
590 |
< |
public void testAcquireInterruptibly2() throws InterruptedException { |
590 |
> |
public void testAcquireInterruptibly() throws InterruptedException { |
591 |
|
final Mutex sync = new Mutex(); |
592 |
< |
sync.acquireInterruptibly(1); |
593 |
< |
Thread t = new Thread(new InterruptedSyncRunnable(sync)); |
594 |
< |
t.start(); |
595 |
< |
Thread.sleep(SHORT_DELAY_MS); |
592 |
> |
final BooleanLatch threadStarted = new BooleanLatch(); |
593 |
> |
sync.acquireInterruptibly(); |
594 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
595 |
> |
public void realRun() throws InterruptedException { |
596 |
> |
assertTrue(threadStarted.releaseShared(0)); |
597 |
> |
sync.acquireInterruptibly(); |
598 |
> |
}}); |
599 |
> |
|
600 |
> |
threadStarted.acquireShared(0); |
601 |
> |
waitForQueuedThread(sync, t); |
602 |
|
t.interrupt(); |
603 |
+ |
awaitTermination(t); |
604 |
|
assertTrue(sync.isHeldExclusively()); |
429 |
– |
t.join(); |
605 |
|
} |
606 |
|
|
607 |
|
/** |
609 |
|
*/ |
610 |
|
public void testOwns() { |
611 |
|
final Mutex sync = new Mutex(); |
612 |
< |
final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition(); |
612 |
> |
final ConditionObject c = sync.newCondition(); |
613 |
|
final Mutex sync2 = new Mutex(); |
614 |
|
assertTrue(sync.owns(c)); |
615 |
|
assertFalse(sync2.owns(c)); |
618 |
|
/** |
619 |
|
* Calling await without holding sync throws IllegalMonitorStateException |
620 |
|
*/ |
621 |
< |
public void testAwait_IllegalMonitor() throws InterruptedException { |
621 |
> |
public void testAwait_IMSE() { |
622 |
|
final Mutex sync = new Mutex(); |
623 |
< |
final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition(); |
624 |
< |
try { |
625 |
< |
c.await(); |
626 |
< |
shouldThrow(); |
627 |
< |
} catch (IllegalMonitorStateException success) {} |
623 |
> |
final ConditionObject c = sync.newCondition(); |
624 |
> |
for (AwaitMethod awaitMethod : AwaitMethod.values()) { |
625 |
> |
long startTime = System.nanoTime(); |
626 |
> |
try { |
627 |
> |
await(c, awaitMethod); |
628 |
> |
shouldThrow(); |
629 |
> |
} catch (IllegalMonitorStateException success) { |
630 |
> |
} catch (InterruptedException e) { threadUnexpectedException(e); } |
631 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
632 |
> |
} |
633 |
|
} |
634 |
|
|
635 |
|
/** |
636 |
|
* Calling signal without holding sync throws IllegalMonitorStateException |
637 |
|
*/ |
638 |
< |
public void testSignal_IllegalMonitor() throws InterruptedException { |
638 |
> |
public void testSignal_IMSE() { |
639 |
|
final Mutex sync = new Mutex(); |
640 |
< |
final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition(); |
640 |
> |
final ConditionObject c = sync.newCondition(); |
641 |
|
try { |
642 |
|
c.signal(); |
643 |
|
shouldThrow(); |
644 |
|
} catch (IllegalMonitorStateException success) {} |
645 |
+ |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
646 |
|
} |
647 |
|
|
648 |
|
/** |
649 |
< |
* awaitNanos without a signal times out |
469 |
< |
*/ |
470 |
< |
public void testAwaitNanos_Timeout() throws InterruptedException { |
471 |
< |
final Mutex sync = new Mutex(); |
472 |
< |
final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition(); |
473 |
< |
sync.acquire(1); |
474 |
< |
long t = c.awaitNanos(100); |
475 |
< |
assertTrue(t <= 0); |
476 |
< |
sync.release(1); |
477 |
< |
} |
478 |
< |
|
479 |
< |
/** |
480 |
< |
* Timed await without a signal times out |
649 |
> |
* Calling signalAll without holding sync throws IllegalMonitorStateException |
650 |
|
*/ |
651 |
< |
public void testAwait_Timeout() throws InterruptedException { |
651 |
> |
public void testSignalAll_IMSE() { |
652 |
|
final Mutex sync = new Mutex(); |
653 |
< |
final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition(); |
654 |
< |
sync.acquire(1); |
655 |
< |
assertFalse(c.await(SHORT_DELAY_MS, MILLISECONDS)); |
656 |
< |
sync.release(1); |
653 |
> |
final ConditionObject c = sync.newCondition(); |
654 |
> |
try { |
655 |
> |
c.signalAll(); |
656 |
> |
shouldThrow(); |
657 |
> |
} catch (IllegalMonitorStateException success) {} |
658 |
|
} |
659 |
|
|
660 |
|
/** |
661 |
< |
* awaitUntil without a signal times out |
661 |
> |
* await/awaitNanos/awaitUntil without a signal times out |
662 |
|
*/ |
663 |
< |
public void testAwaitUntil_Timeout() throws InterruptedException { |
663 |
> |
public void testAwaitTimed_Timeout() { testAwait_Timeout(AwaitMethod.awaitTimed); } |
664 |
> |
public void testAwaitNanos_Timeout() { testAwait_Timeout(AwaitMethod.awaitNanos); } |
665 |
> |
public void testAwaitUntil_Timeout() { testAwait_Timeout(AwaitMethod.awaitUntil); } |
666 |
> |
public void testAwait_Timeout(AwaitMethod awaitMethod) { |
667 |
|
final Mutex sync = new Mutex(); |
668 |
< |
final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition(); |
669 |
< |
sync.acquire(1); |
670 |
< |
java.util.Date d = new java.util.Date(); |
671 |
< |
assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10))); |
499 |
< |
sync.release(1); |
668 |
> |
final ConditionObject c = sync.newCondition(); |
669 |
> |
sync.acquire(); |
670 |
> |
assertAwaitTimesOut(c, awaitMethod); |
671 |
> |
sync.release(); |
672 |
|
} |
673 |
|
|
674 |
|
/** |
675 |
< |
* await returns when signalled |
675 |
> |
* await/awaitNanos/awaitUntil returns when signalled |
676 |
|
*/ |
677 |
< |
public void testAwait() throws InterruptedException { |
677 |
> |
public void testSignal_await() { testSignal(AwaitMethod.await); } |
678 |
> |
public void testSignal_awaitTimed() { testSignal(AwaitMethod.awaitTimed); } |
679 |
> |
public void testSignal_awaitNanos() { testSignal(AwaitMethod.awaitNanos); } |
680 |
> |
public void testSignal_awaitUntil() { testSignal(AwaitMethod.awaitUntil); } |
681 |
> |
public void testSignal(final AwaitMethod awaitMethod) { |
682 |
|
final Mutex sync = new Mutex(); |
683 |
< |
final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition(); |
684 |
< |
Thread t = new Thread(new CheckedRunnable() { |
683 |
> |
final ConditionObject c = sync.newCondition(); |
684 |
> |
final BooleanLatch acquired = new BooleanLatch(); |
685 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
686 |
|
public void realRun() throws InterruptedException { |
687 |
< |
sync.acquire(1); |
688 |
< |
c.await(); |
689 |
< |
sync.release(1); |
687 |
> |
sync.acquire(); |
688 |
> |
assertTrue(acquired.releaseShared(0)); |
689 |
> |
await(c, awaitMethod); |
690 |
> |
sync.release(); |
691 |
|
}}); |
692 |
|
|
693 |
< |
t.start(); |
694 |
< |
Thread.sleep(SHORT_DELAY_MS); |
695 |
< |
sync.acquire(1); |
693 |
> |
acquired.acquireShared(0); |
694 |
> |
sync.acquire(); |
695 |
> |
assertHasWaitersLocked(sync, c, t); |
696 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
697 |
|
c.signal(); |
698 |
< |
sync.release(1); |
699 |
< |
t.join(SHORT_DELAY_MS); |
700 |
< |
assertFalse(t.isAlive()); |
698 |
> |
assertHasWaitersLocked(sync, c, NO_THREADS); |
699 |
> |
assertHasExclusiveQueuedThreads(sync, t); |
700 |
> |
sync.release(); |
701 |
> |
awaitTermination(t); |
702 |
|
} |
703 |
|
|
524 |
– |
|
525 |
– |
|
704 |
|
/** |
705 |
< |
* hasWaiters throws NPE if null |
705 |
> |
* hasWaiters(null) throws NullPointerException |
706 |
|
*/ |
707 |
|
public void testHasWaitersNPE() { |
708 |
|
final Mutex sync = new Mutex(); |
713 |
|
} |
714 |
|
|
715 |
|
/** |
716 |
< |
* getWaitQueueLength throws NPE if null |
716 |
> |
* getWaitQueueLength(null) throws NullPointerException |
717 |
|
*/ |
718 |
|
public void testGetWaitQueueLengthNPE() { |
719 |
|
final Mutex sync = new Mutex(); |
723 |
|
} catch (NullPointerException success) {} |
724 |
|
} |
725 |
|
|
548 |
– |
|
726 |
|
/** |
727 |
|
* getWaitingThreads throws NPE if null |
728 |
|
*/ |
734 |
|
} catch (NullPointerException success) {} |
735 |
|
} |
736 |
|
|
560 |
– |
|
737 |
|
/** |
738 |
< |
* hasWaiters throws IAE if not owned |
738 |
> |
* hasWaiters throws IllegalArgumentException if not owned |
739 |
|
*/ |
740 |
|
public void testHasWaitersIAE() { |
741 |
|
final Mutex sync = new Mutex(); |
742 |
< |
final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition(); |
742 |
> |
final ConditionObject c = sync.newCondition(); |
743 |
|
final Mutex sync2 = new Mutex(); |
744 |
|
try { |
745 |
|
sync2.hasWaiters(c); |
746 |
|
shouldThrow(); |
747 |
|
} catch (IllegalArgumentException success) {} |
748 |
+ |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
749 |
|
} |
750 |
|
|
751 |
|
/** |
752 |
< |
* hasWaiters throws IMSE if not synced |
752 |
> |
* hasWaiters throws IllegalMonitorStateException if not synced |
753 |
|
*/ |
754 |
|
public void testHasWaitersIMSE() { |
755 |
|
final Mutex sync = new Mutex(); |
756 |
< |
final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition(); |
756 |
> |
final ConditionObject c = sync.newCondition(); |
757 |
|
try { |
758 |
|
sync.hasWaiters(c); |
759 |
|
shouldThrow(); |
760 |
|
} catch (IllegalMonitorStateException success) {} |
761 |
+ |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
762 |
|
} |
763 |
|
|
586 |
– |
|
764 |
|
/** |
765 |
< |
* getWaitQueueLength throws IAE if not owned |
765 |
> |
* getWaitQueueLength throws IllegalArgumentException if not owned |
766 |
|
*/ |
767 |
|
public void testGetWaitQueueLengthIAE() { |
768 |
|
final Mutex sync = new Mutex(); |
769 |
< |
final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition(); |
769 |
> |
final ConditionObject c = sync.newCondition(); |
770 |
|
final Mutex sync2 = new Mutex(); |
771 |
|
try { |
772 |
|
sync2.getWaitQueueLength(c); |
773 |
|
shouldThrow(); |
774 |
|
} catch (IllegalArgumentException success) {} |
775 |
+ |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
776 |
|
} |
777 |
|
|
778 |
|
/** |
779 |
< |
* getWaitQueueLength throws IMSE if not synced |
779 |
> |
* getWaitQueueLength throws IllegalMonitorStateException if not synced |
780 |
|
*/ |
781 |
|
public void testGetWaitQueueLengthIMSE() { |
782 |
|
final Mutex sync = new Mutex(); |
783 |
< |
final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition(); |
783 |
> |
final ConditionObject c = sync.newCondition(); |
784 |
|
try { |
785 |
|
sync.getWaitQueueLength(c); |
786 |
|
shouldThrow(); |
787 |
|
} catch (IllegalMonitorStateException success) {} |
788 |
+ |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
789 |
|
} |
790 |
|
|
612 |
– |
|
791 |
|
/** |
792 |
< |
* getWaitingThreads throws IAE if not owned |
792 |
> |
* getWaitingThreads throws IllegalArgumentException if not owned |
793 |
|
*/ |
794 |
|
public void testGetWaitingThreadsIAE() { |
795 |
|
final Mutex sync = new Mutex(); |
796 |
< |
final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition(); |
796 |
> |
final ConditionObject c = sync.newCondition(); |
797 |
|
final Mutex sync2 = new Mutex(); |
798 |
|
try { |
799 |
|
sync2.getWaitingThreads(c); |
800 |
|
shouldThrow(); |
801 |
|
} catch (IllegalArgumentException success) {} |
802 |
+ |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
803 |
|
} |
804 |
|
|
805 |
|
/** |
806 |
< |
* getWaitingThreads throws IMSE if not synced |
806 |
> |
* getWaitingThreads throws IllegalMonitorStateException if not synced |
807 |
|
*/ |
808 |
|
public void testGetWaitingThreadsIMSE() { |
809 |
|
final Mutex sync = new Mutex(); |
810 |
< |
final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition(); |
810 |
> |
final ConditionObject c = sync.newCondition(); |
811 |
|
try { |
812 |
|
sync.getWaitingThreads(c); |
813 |
|
shouldThrow(); |
814 |
|
} catch (IllegalMonitorStateException success) {} |
815 |
+ |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
816 |
|
} |
817 |
|
|
638 |
– |
|
639 |
– |
|
818 |
|
/** |
819 |
|
* hasWaiters returns true when a thread is waiting, else false |
820 |
|
*/ |
821 |
< |
public void testHasWaiters() throws InterruptedException { |
821 |
> |
public void testHasWaiters() { |
822 |
|
final Mutex sync = new Mutex(); |
823 |
< |
final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition(); |
824 |
< |
Thread t = new Thread(new CheckedRunnable() { |
823 |
> |
final ConditionObject c = sync.newCondition(); |
824 |
> |
final BooleanLatch acquired = new BooleanLatch(); |
825 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
826 |
|
public void realRun() throws InterruptedException { |
827 |
< |
sync.acquire(1); |
827 |
> |
sync.acquire(); |
828 |
> |
assertHasWaitersLocked(sync, c, NO_THREADS); |
829 |
|
assertFalse(sync.hasWaiters(c)); |
830 |
< |
assertEquals(0, sync.getWaitQueueLength(c)); |
830 |
> |
assertTrue(acquired.releaseShared(0)); |
831 |
|
c.await(); |
832 |
< |
sync.release(1); |
832 |
> |
sync.release(); |
833 |
|
}}); |
834 |
|
|
835 |
< |
t.start(); |
836 |
< |
Thread.sleep(SHORT_DELAY_MS); |
837 |
< |
sync.acquire(1); |
835 |
> |
acquired.acquireShared(0); |
836 |
> |
sync.acquire(); |
837 |
> |
assertHasWaitersLocked(sync, c, t); |
838 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
839 |
|
assertTrue(sync.hasWaiters(c)); |
659 |
– |
assertEquals(1, sync.getWaitQueueLength(c)); |
840 |
|
c.signal(); |
841 |
< |
sync.release(1); |
842 |
< |
Thread.sleep(SHORT_DELAY_MS); |
663 |
< |
sync.acquire(1); |
841 |
> |
assertHasWaitersLocked(sync, c, NO_THREADS); |
842 |
> |
assertHasExclusiveQueuedThreads(sync, t); |
843 |
|
assertFalse(sync.hasWaiters(c)); |
844 |
< |
assertEquals(0, sync.getWaitQueueLength(c)); |
845 |
< |
sync.release(1); |
846 |
< |
t.join(SHORT_DELAY_MS); |
847 |
< |
assertFalse(t.isAlive()); |
844 |
> |
sync.release(); |
845 |
> |
|
846 |
> |
awaitTermination(t); |
847 |
> |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
848 |
|
} |
849 |
|
|
850 |
|
/** |
851 |
|
* getWaitQueueLength returns number of waiting threads |
852 |
|
*/ |
853 |
< |
public void testGetWaitQueueLength() throws InterruptedException { |
853 |
> |
public void testGetWaitQueueLength() { |
854 |
|
final Mutex sync = new Mutex(); |
855 |
< |
final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition(); |
856 |
< |
Thread t1 = new Thread(new CheckedRunnable() { |
855 |
> |
final ConditionObject c = sync.newCondition(); |
856 |
> |
final BooleanLatch acquired1 = new BooleanLatch(); |
857 |
> |
final BooleanLatch acquired2 = new BooleanLatch(); |
858 |
> |
final Thread t1 = newStartedThread(new CheckedRunnable() { |
859 |
|
public void realRun() throws InterruptedException { |
860 |
< |
sync.acquire(1); |
861 |
< |
assertFalse(sync.hasWaiters(c)); |
860 |
> |
sync.acquire(); |
861 |
> |
assertHasWaitersLocked(sync, c, NO_THREADS); |
862 |
|
assertEquals(0, sync.getWaitQueueLength(c)); |
863 |
+ |
assertTrue(acquired1.releaseShared(0)); |
864 |
|
c.await(); |
865 |
< |
sync.release(1); |
865 |
> |
sync.release(); |
866 |
|
}}); |
867 |
+ |
acquired1.acquireShared(0); |
868 |
+ |
sync.acquire(); |
869 |
+ |
assertHasWaitersLocked(sync, c, t1); |
870 |
+ |
assertEquals(1, sync.getWaitQueueLength(c)); |
871 |
+ |
sync.release(); |
872 |
|
|
873 |
< |
Thread t2 = new Thread(new CheckedRunnable() { |
873 |
> |
final Thread t2 = newStartedThread(new CheckedRunnable() { |
874 |
|
public void realRun() throws InterruptedException { |
875 |
< |
sync.acquire(1); |
876 |
< |
assertTrue(sync.hasWaiters(c)); |
875 |
> |
sync.acquire(); |
876 |
> |
assertHasWaitersLocked(sync, c, t1); |
877 |
|
assertEquals(1, sync.getWaitQueueLength(c)); |
878 |
+ |
assertTrue(acquired2.releaseShared(0)); |
879 |
|
c.await(); |
880 |
< |
sync.release(1); |
880 |
> |
sync.release(); |
881 |
|
}}); |
882 |
< |
|
883 |
< |
t1.start(); |
884 |
< |
Thread.sleep(SHORT_DELAY_MS); |
885 |
< |
t2.start(); |
698 |
< |
Thread.sleep(SHORT_DELAY_MS); |
699 |
< |
sync.acquire(1); |
700 |
< |
assertTrue(sync.hasWaiters(c)); |
882 |
> |
acquired2.acquireShared(0); |
883 |
> |
sync.acquire(); |
884 |
> |
assertHasWaitersLocked(sync, c, t1, t2); |
885 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
886 |
|
assertEquals(2, sync.getWaitQueueLength(c)); |
887 |
|
c.signalAll(); |
888 |
< |
sync.release(1); |
889 |
< |
Thread.sleep(SHORT_DELAY_MS); |
705 |
< |
sync.acquire(1); |
706 |
< |
assertFalse(sync.hasWaiters(c)); |
888 |
> |
assertHasWaitersLocked(sync, c, NO_THREADS); |
889 |
> |
assertHasExclusiveQueuedThreads(sync, t1, t2); |
890 |
|
assertEquals(0, sync.getWaitQueueLength(c)); |
891 |
< |
sync.release(1); |
892 |
< |
t1.join(SHORT_DELAY_MS); |
893 |
< |
t2.join(SHORT_DELAY_MS); |
894 |
< |
assertFalse(t1.isAlive()); |
895 |
< |
assertFalse(t2.isAlive()); |
891 |
> |
sync.release(); |
892 |
> |
|
893 |
> |
awaitTermination(t1); |
894 |
> |
awaitTermination(t2); |
895 |
> |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
896 |
|
} |
897 |
|
|
898 |
|
/** |
899 |
|
* getWaitingThreads returns only and all waiting threads |
900 |
|
*/ |
901 |
< |
public void testGetWaitingThreads() throws InterruptedException { |
901 |
> |
public void testGetWaitingThreads() { |
902 |
|
final Mutex sync = new Mutex(); |
903 |
< |
final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition(); |
904 |
< |
Thread t1 = new Thread(new CheckedRunnable() { |
903 |
> |
final ConditionObject c = sync.newCondition(); |
904 |
> |
final BooleanLatch acquired1 = new BooleanLatch(); |
905 |
> |
final BooleanLatch acquired2 = new BooleanLatch(); |
906 |
> |
final Thread t1 = new Thread(new CheckedRunnable() { |
907 |
|
public void realRun() throws InterruptedException { |
908 |
< |
sync.acquire(1); |
908 |
> |
sync.acquire(); |
909 |
> |
assertHasWaitersLocked(sync, c, NO_THREADS); |
910 |
|
assertTrue(sync.getWaitingThreads(c).isEmpty()); |
911 |
+ |
assertTrue(acquired1.releaseShared(0)); |
912 |
|
c.await(); |
913 |
< |
sync.release(1); |
913 |
> |
sync.release(); |
914 |
|
}}); |
915 |
|
|
916 |
< |
Thread t2 = new Thread(new CheckedRunnable() { |
916 |
> |
final Thread t2 = new Thread(new CheckedRunnable() { |
917 |
|
public void realRun() throws InterruptedException { |
918 |
< |
sync.acquire(1); |
918 |
> |
sync.acquire(); |
919 |
> |
assertHasWaitersLocked(sync, c, t1); |
920 |
> |
assertTrue(sync.getWaitingThreads(c).contains(t1)); |
921 |
|
assertFalse(sync.getWaitingThreads(c).isEmpty()); |
922 |
+ |
assertEquals(1, sync.getWaitingThreads(c).size()); |
923 |
+ |
assertTrue(acquired2.releaseShared(0)); |
924 |
|
c.await(); |
925 |
< |
sync.release(1); |
925 |
> |
sync.release(); |
926 |
|
}}); |
927 |
|
|
928 |
< |
sync.acquire(1); |
929 |
< |
assertTrue(sync.getWaitingThreads(c).isEmpty()); |
930 |
< |
sync.release(1); |
931 |
< |
t1.start(); |
932 |
< |
Thread.sleep(SHORT_DELAY_MS); |
933 |
< |
t2.start(); |
934 |
< |
Thread.sleep(SHORT_DELAY_MS); |
744 |
< |
sync.acquire(1); |
745 |
< |
assertTrue(sync.hasWaiters(c)); |
746 |
< |
assertTrue(sync.getWaitingThreads(c).contains(t1)); |
747 |
< |
assertTrue(sync.getWaitingThreads(c).contains(t2)); |
748 |
< |
c.signalAll(); |
749 |
< |
sync.release(1); |
750 |
< |
Thread.sleep(SHORT_DELAY_MS); |
751 |
< |
sync.acquire(1); |
752 |
< |
assertFalse(sync.hasWaiters(c)); |
753 |
< |
assertTrue(sync.getWaitingThreads(c).isEmpty()); |
754 |
< |
sync.release(1); |
755 |
< |
t1.join(SHORT_DELAY_MS); |
756 |
< |
t2.join(SHORT_DELAY_MS); |
757 |
< |
assertFalse(t1.isAlive()); |
758 |
< |
assertFalse(t2.isAlive()); |
759 |
< |
} |
760 |
< |
|
928 |
> |
sync.acquire(); |
929 |
> |
assertHasWaitersLocked(sync, c, NO_THREADS); |
930 |
> |
assertFalse(sync.getWaitingThreads(c).contains(t1)); |
931 |
> |
assertFalse(sync.getWaitingThreads(c).contains(t2)); |
932 |
> |
assertTrue(sync.getWaitingThreads(c).isEmpty()); |
933 |
> |
assertEquals(0, sync.getWaitingThreads(c).size()); |
934 |
> |
sync.release(); |
935 |
|
|
936 |
+ |
t1.start(); |
937 |
+ |
acquired1.acquireShared(0); |
938 |
+ |
sync.acquire(); |
939 |
+ |
assertHasWaitersLocked(sync, c, t1); |
940 |
+ |
assertTrue(sync.getWaitingThreads(c).contains(t1)); |
941 |
+ |
assertFalse(sync.getWaitingThreads(c).contains(t2)); |
942 |
+ |
assertFalse(sync.getWaitingThreads(c).isEmpty()); |
943 |
+ |
assertEquals(1, sync.getWaitingThreads(c).size()); |
944 |
+ |
sync.release(); |
945 |
|
|
946 |
< |
/** |
947 |
< |
* awaitUninterruptibly doesn't abort on interrupt |
948 |
< |
*/ |
949 |
< |
public void testAwaitUninterruptibly() throws InterruptedException { |
950 |
< |
final Mutex sync = new Mutex(); |
951 |
< |
final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition(); |
952 |
< |
Thread t = new Thread(new CheckedRunnable() { |
953 |
< |
public void realRun() { |
954 |
< |
sync.acquire(1); |
955 |
< |
c.awaitUninterruptibly(); |
956 |
< |
sync.release(1); |
957 |
< |
}}); |
958 |
< |
|
959 |
< |
t.start(); |
960 |
< |
Thread.sleep(SHORT_DELAY_MS); |
961 |
< |
t.interrupt(); |
962 |
< |
sync.acquire(1); |
780 |
< |
c.signal(); |
781 |
< |
sync.release(1); |
782 |
< |
t.join(SHORT_DELAY_MS); |
783 |
< |
assertFalse(t.isAlive()); |
784 |
< |
} |
785 |
< |
|
786 |
< |
/** |
787 |
< |
* await is interruptible |
788 |
< |
*/ |
789 |
< |
public void testAwait_Interrupt() throws InterruptedException { |
790 |
< |
final Mutex sync = new Mutex(); |
791 |
< |
final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition(); |
792 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
793 |
< |
public void realRun() throws InterruptedException { |
794 |
< |
sync.acquire(1); |
795 |
< |
c.await(); |
796 |
< |
}}); |
946 |
> |
t2.start(); |
947 |
> |
acquired2.acquireShared(0); |
948 |
> |
sync.acquire(); |
949 |
> |
assertHasWaitersLocked(sync, c, t1, t2); |
950 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
951 |
> |
assertTrue(sync.getWaitingThreads(c).contains(t1)); |
952 |
> |
assertTrue(sync.getWaitingThreads(c).contains(t2)); |
953 |
> |
assertFalse(sync.getWaitingThreads(c).isEmpty()); |
954 |
> |
assertEquals(2, sync.getWaitingThreads(c).size()); |
955 |
> |
c.signalAll(); |
956 |
> |
assertHasWaitersLocked(sync, c, NO_THREADS); |
957 |
> |
assertHasExclusiveQueuedThreads(sync, t1, t2); |
958 |
> |
assertFalse(sync.getWaitingThreads(c).contains(t1)); |
959 |
> |
assertFalse(sync.getWaitingThreads(c).contains(t2)); |
960 |
> |
assertTrue(sync.getWaitingThreads(c).isEmpty()); |
961 |
> |
assertEquals(0, sync.getWaitingThreads(c).size()); |
962 |
> |
sync.release(); |
963 |
|
|
964 |
< |
t.start(); |
965 |
< |
Thread.sleep(SHORT_DELAY_MS); |
966 |
< |
t.interrupt(); |
801 |
< |
t.join(SHORT_DELAY_MS); |
802 |
< |
assertFalse(t.isAlive()); |
964 |
> |
awaitTermination(t1); |
965 |
> |
awaitTermination(t2); |
966 |
> |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
967 |
|
} |
968 |
|
|
969 |
|
/** |
970 |
< |
* awaitNanos is interruptible |
970 |
> |
* awaitUninterruptibly is uninterruptible |
971 |
|
*/ |
972 |
< |
public void testAwaitNanos_Interrupt() throws InterruptedException { |
972 |
> |
public void testAwaitUninterruptibly() { |
973 |
|
final Mutex sync = new Mutex(); |
974 |
< |
final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition(); |
975 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
976 |
< |
public void realRun() throws InterruptedException { |
977 |
< |
sync.acquire(1); |
978 |
< |
c.awaitNanos(MILLISECONDS.toNanos(LONG_DELAY_MS)); |
974 |
> |
final ConditionObject condition = sync.newCondition(); |
975 |
> |
final BooleanLatch pleaseInterrupt = new BooleanLatch(); |
976 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
977 |
> |
public void realRun() { |
978 |
> |
sync.acquire(); |
979 |
> |
assertTrue(pleaseInterrupt.releaseShared(0)); |
980 |
> |
condition.awaitUninterruptibly(); |
981 |
> |
assertTrue(Thread.interrupted()); |
982 |
> |
assertHasWaitersLocked(sync, condition, NO_THREADS); |
983 |
> |
sync.release(); |
984 |
|
}}); |
985 |
|
|
986 |
< |
t.start(); |
987 |
< |
Thread.sleep(SHORT_DELAY_MS); |
986 |
> |
pleaseInterrupt.acquireShared(0); |
987 |
> |
sync.acquire(); |
988 |
> |
assertHasWaitersLocked(sync, condition, t); |
989 |
> |
sync.release(); |
990 |
|
t.interrupt(); |
991 |
< |
t.join(SHORT_DELAY_MS); |
992 |
< |
assertFalse(t.isAlive()); |
991 |
> |
assertHasWaitersUnlocked(sync, condition, t); |
992 |
> |
assertThreadBlocks(t, Thread.State.WAITING); |
993 |
> |
sync.acquire(); |
994 |
> |
assertHasWaitersLocked(sync, condition, t); |
995 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
996 |
> |
condition.signal(); |
997 |
> |
assertHasWaitersLocked(sync, condition, NO_THREADS); |
998 |
> |
assertHasExclusiveQueuedThreads(sync, t); |
999 |
> |
sync.release(); |
1000 |
> |
awaitTermination(t); |
1001 |
|
} |
1002 |
|
|
1003 |
|
/** |
1004 |
< |
* awaitUntil is interruptible |
1005 |
< |
*/ |
1006 |
< |
public void testAwaitUntil_Interrupt() throws InterruptedException { |
1007 |
< |
final Mutex sync = new Mutex(); |
1008 |
< |
final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition(); |
1009 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
1004 |
> |
* await/awaitNanos/awaitUntil is interruptible |
1005 |
> |
*/ |
1006 |
> |
public void testInterruptible_await() { testInterruptible(AwaitMethod.await); } |
1007 |
> |
public void testInterruptible_awaitTimed() { testInterruptible(AwaitMethod.awaitTimed); } |
1008 |
> |
public void testInterruptible_awaitNanos() { testInterruptible(AwaitMethod.awaitNanos); } |
1009 |
> |
public void testInterruptible_awaitUntil() { testInterruptible(AwaitMethod.awaitUntil); } |
1010 |
> |
public void testInterruptible(final AwaitMethod awaitMethod) { |
1011 |
> |
final Mutex sync = new Mutex(); |
1012 |
> |
final ConditionObject c = sync.newCondition(); |
1013 |
> |
final BooleanLatch pleaseInterrupt = new BooleanLatch(); |
1014 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
1015 |
|
public void realRun() throws InterruptedException { |
1016 |
< |
sync.acquire(1); |
1017 |
< |
java.util.Date d = new java.util.Date(); |
1018 |
< |
c.awaitUntil(new java.util.Date(d.getTime() + 10000)); |
1016 |
> |
sync.acquire(); |
1017 |
> |
assertTrue(pleaseInterrupt.releaseShared(0)); |
1018 |
> |
await(c, awaitMethod); |
1019 |
|
}}); |
1020 |
|
|
1021 |
< |
t.start(); |
838 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1021 |
> |
pleaseInterrupt.acquireShared(0); |
1022 |
|
t.interrupt(); |
1023 |
< |
t.join(SHORT_DELAY_MS); |
841 |
< |
assertFalse(t.isAlive()); |
1023 |
> |
awaitTermination(t); |
1024 |
|
} |
1025 |
|
|
1026 |
|
/** |
1027 |
|
* signalAll wakes up all threads |
1028 |
|
*/ |
1029 |
< |
public void testSignalAll() throws InterruptedException { |
1030 |
< |
final Mutex sync = new Mutex(); |
1031 |
< |
final AbstractQueuedLongSynchronizer.ConditionObject c = sync.newCondition(); |
1032 |
< |
Thread t1 = new Thread(new CheckedRunnable() { |
1029 |
> |
public void testSignalAll_await() { testSignalAll(AwaitMethod.await); } |
1030 |
> |
public void testSignalAll_awaitTimed() { testSignalAll(AwaitMethod.awaitTimed); } |
1031 |
> |
public void testSignalAll_awaitNanos() { testSignalAll(AwaitMethod.awaitNanos); } |
1032 |
> |
public void testSignalAll_awaitUntil() { testSignalAll(AwaitMethod.awaitUntil); } |
1033 |
> |
public void testSignalAll(final AwaitMethod awaitMethod) { |
1034 |
> |
final Mutex sync = new Mutex(); |
1035 |
> |
final ConditionObject c = sync.newCondition(); |
1036 |
> |
final BooleanLatch acquired1 = new BooleanLatch(); |
1037 |
> |
final BooleanLatch acquired2 = new BooleanLatch(); |
1038 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
1039 |
|
public void realRun() throws InterruptedException { |
1040 |
< |
sync.acquire(1); |
1041 |
< |
c.await(); |
1042 |
< |
sync.release(1); |
1040 |
> |
sync.acquire(); |
1041 |
> |
acquired1.releaseShared(0); |
1042 |
> |
await(c, awaitMethod); |
1043 |
> |
sync.release(); |
1044 |
|
}}); |
1045 |
|
|
1046 |
< |
Thread t2 = new Thread(new CheckedRunnable() { |
1046 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
1047 |
|
public void realRun() throws InterruptedException { |
1048 |
< |
sync.acquire(1); |
1049 |
< |
c.await(); |
1050 |
< |
sync.release(1); |
1048 |
> |
sync.acquire(); |
1049 |
> |
acquired2.releaseShared(0); |
1050 |
> |
await(c, awaitMethod); |
1051 |
> |
sync.release(); |
1052 |
|
}}); |
1053 |
|
|
1054 |
< |
t1.start(); |
1055 |
< |
t2.start(); |
1056 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1057 |
< |
sync.acquire(1); |
1054 |
> |
acquired1.acquireShared(0); |
1055 |
> |
acquired2.acquireShared(0); |
1056 |
> |
sync.acquire(); |
1057 |
> |
assertHasWaitersLocked(sync, c, t1, t2); |
1058 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
1059 |
|
c.signalAll(); |
1060 |
< |
sync.release(1); |
1061 |
< |
t1.join(SHORT_DELAY_MS); |
1062 |
< |
t2.join(SHORT_DELAY_MS); |
1063 |
< |
assertFalse(t1.isAlive()); |
1064 |
< |
assertFalse(t2.isAlive()); |
1060 |
> |
assertHasWaitersLocked(sync, c, NO_THREADS); |
1061 |
> |
assertHasExclusiveQueuedThreads(sync, t1, t2); |
1062 |
> |
sync.release(); |
1063 |
> |
awaitTermination(t1); |
1064 |
> |
awaitTermination(t2); |
1065 |
|
} |
1066 |
|
|
876 |
– |
|
1067 |
|
/** |
1068 |
|
* toString indicates current state |
1069 |
|
*/ |
1070 |
|
public void testToString() { |
1071 |
|
Mutex sync = new Mutex(); |
1072 |
< |
String us = sync.toString(); |
1073 |
< |
assertTrue(us.indexOf("State = 0") >= 0); |
1074 |
< |
sync.acquire(1); |
885 |
< |
String ls = sync.toString(); |
886 |
< |
assertTrue(ls.indexOf("State = " + Mutex.LOCKED) >= 0); |
1072 |
> |
assertTrue(sync.toString().contains("State = " + Mutex.UNLOCKED)); |
1073 |
> |
sync.acquire(); |
1074 |
> |
assertTrue(sync.toString().contains("State = " + Mutex.LOCKED)); |
1075 |
|
} |
1076 |
|
|
1077 |
|
/** |
1078 |
< |
* A serialized AQS deserializes with current state |
1079 |
< |
*/ |
1080 |
< |
public void testSerialization() throws Exception { |
1081 |
< |
Mutex l = new Mutex(); |
1082 |
< |
l.acquire(1); |
1083 |
< |
assertTrue(l.isHeldExclusively()); |
1084 |
< |
|
1085 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
1086 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
899 |
< |
out.writeObject(l); |
900 |
< |
out.close(); |
901 |
< |
|
902 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
903 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
904 |
< |
Mutex r = (Mutex) in.readObject(); |
905 |
< |
assertTrue(r.isHeldExclusively()); |
906 |
< |
} |
1078 |
> |
* A serialized AQS deserializes with current state, but no queued threads |
1079 |
> |
*/ |
1080 |
> |
public void testSerialization() { |
1081 |
> |
Mutex sync = new Mutex(); |
1082 |
> |
assertFalse(serialClone(sync).isHeldExclusively()); |
1083 |
> |
sync.acquire(); |
1084 |
> |
Thread t = newStartedThread(new InterruptedSyncRunnable(sync)); |
1085 |
> |
waitForQueuedThread(sync, t); |
1086 |
> |
assertTrue(sync.isHeldExclusively()); |
1087 |
|
|
1088 |
+ |
Mutex clone = serialClone(sync); |
1089 |
+ |
assertTrue(clone.isHeldExclusively()); |
1090 |
+ |
assertHasExclusiveQueuedThreads(sync, t); |
1091 |
+ |
assertHasExclusiveQueuedThreads(clone, NO_THREADS); |
1092 |
+ |
t.interrupt(); |
1093 |
+ |
awaitTermination(t); |
1094 |
+ |
sync.release(); |
1095 |
+ |
assertFalse(sync.isHeldExclusively()); |
1096 |
+ |
assertTrue(clone.isHeldExclusively()); |
1097 |
+ |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
1098 |
+ |
assertHasExclusiveQueuedThreads(clone, NO_THREADS); |
1099 |
+ |
} |
1100 |
|
|
1101 |
|
/** |
1102 |
|
* tryReleaseShared setting state changes getState |
1104 |
|
public void testGetStateWithReleaseShared() { |
1105 |
|
final BooleanLatch l = new BooleanLatch(); |
1106 |
|
assertFalse(l.isSignalled()); |
1107 |
< |
l.releaseShared(0); |
1107 |
> |
assertTrue(l.releaseShared(0)); |
1108 |
|
assertTrue(l.isSignalled()); |
1109 |
|
} |
1110 |
|
|
1114 |
|
public void testReleaseShared() { |
1115 |
|
final BooleanLatch l = new BooleanLatch(); |
1116 |
|
assertFalse(l.isSignalled()); |
1117 |
< |
l.releaseShared(0); |
1117 |
> |
assertTrue(l.releaseShared(0)); |
1118 |
|
assertTrue(l.isSignalled()); |
1119 |
< |
l.releaseShared(0); |
1119 |
> |
assertTrue(l.releaseShared(0)); |
1120 |
|
assertTrue(l.isSignalled()); |
1121 |
|
} |
1122 |
|
|
1123 |
|
/** |
1124 |
|
* acquireSharedInterruptibly returns after release, but not before |
1125 |
|
*/ |
1126 |
< |
public void testAcquireSharedInterruptibly() throws InterruptedException { |
1126 |
> |
public void testAcquireSharedInterruptibly() { |
1127 |
|
final BooleanLatch l = new BooleanLatch(); |
1128 |
|
|
1129 |
< |
Thread t = new Thread(new CheckedRunnable() { |
1129 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
1130 |
|
public void realRun() throws InterruptedException { |
1131 |
|
assertFalse(l.isSignalled()); |
1132 |
|
l.acquireSharedInterruptibly(0); |
1133 |
|
assertTrue(l.isSignalled()); |
1134 |
+ |
l.acquireSharedInterruptibly(0); |
1135 |
+ |
assertTrue(l.isSignalled()); |
1136 |
|
}}); |
1137 |
|
|
1138 |
< |
t.start(); |
1138 |
> |
waitForQueuedThread(l, t); |
1139 |
|
assertFalse(l.isSignalled()); |
1140 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1141 |
< |
l.releaseShared(0); |
1140 |
> |
assertThreadBlocks(t, Thread.State.WAITING); |
1141 |
> |
assertHasSharedQueuedThreads(l, t); |
1142 |
> |
assertTrue(l.releaseShared(0)); |
1143 |
|
assertTrue(l.isSignalled()); |
1144 |
< |
t.join(); |
1144 |
> |
awaitTermination(t); |
1145 |
|
} |
1146 |
|
|
952 |
– |
|
1147 |
|
/** |
1148 |
< |
* acquireSharedTimed returns after release |
1148 |
> |
* tryAcquireSharedNanos returns after release, but not before |
1149 |
|
*/ |
1150 |
< |
public void testAcquireSharedTimed() throws InterruptedException { |
1150 |
> |
public void testTryAcquireSharedNanos() { |
1151 |
|
final BooleanLatch l = new BooleanLatch(); |
1152 |
|
|
1153 |
< |
Thread t = new Thread(new CheckedRunnable() { |
1153 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
1154 |
|
public void realRun() throws InterruptedException { |
1155 |
|
assertFalse(l.isSignalled()); |
1156 |
< |
long nanos = MILLISECONDS.toNanos(MEDIUM_DELAY_MS); |
1156 |
> |
long nanos = MILLISECONDS.toNanos(2 * LONG_DELAY_MS); |
1157 |
> |
assertTrue(l.tryAcquireSharedNanos(0, nanos)); |
1158 |
> |
assertTrue(l.isSignalled()); |
1159 |
|
assertTrue(l.tryAcquireSharedNanos(0, nanos)); |
1160 |
|
assertTrue(l.isSignalled()); |
1161 |
|
}}); |
1162 |
|
|
1163 |
< |
t.start(); |
1163 |
> |
waitForQueuedThread(l, t); |
1164 |
|
assertFalse(l.isSignalled()); |
1165 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1166 |
< |
l.releaseShared(0); |
1165 |
> |
assertThreadBlocks(t, Thread.State.TIMED_WAITING); |
1166 |
> |
assertTrue(l.releaseShared(0)); |
1167 |
|
assertTrue(l.isSignalled()); |
1168 |
< |
t.join(); |
1168 |
> |
awaitTermination(t); |
1169 |
|
} |
1170 |
|
|
1171 |
|
/** |
1172 |
< |
* acquireSharedInterruptibly throws IE if interrupted before released |
1172 |
> |
* acquireSharedInterruptibly is interruptible |
1173 |
|
*/ |
1174 |
< |
public void testAcquireSharedInterruptibly_InterruptedException() |
979 |
< |
throws InterruptedException { |
1174 |
> |
public void testAcquireSharedInterruptibly_Interruptible() { |
1175 |
|
final BooleanLatch l = new BooleanLatch(); |
1176 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
1176 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
1177 |
|
public void realRun() throws InterruptedException { |
1178 |
|
assertFalse(l.isSignalled()); |
1179 |
|
l.acquireSharedInterruptibly(0); |
1180 |
|
}}); |
1181 |
|
|
1182 |
< |
t.start(); |
1182 |
> |
waitForQueuedThread(l, t); |
1183 |
|
assertFalse(l.isSignalled()); |
1184 |
|
t.interrupt(); |
1185 |
< |
t.join(); |
1185 |
> |
awaitTermination(t); |
1186 |
> |
assertFalse(l.isSignalled()); |
1187 |
|
} |
1188 |
|
|
1189 |
|
/** |
1190 |
< |
* acquireSharedTimed throws IE if interrupted before released |
1190 |
> |
* tryAcquireSharedNanos is interruptible |
1191 |
|
*/ |
1192 |
< |
public void testAcquireSharedNanos_InterruptedException() throws InterruptedException { |
1192 |
> |
public void testTryAcquireSharedNanos_Interruptible() { |
1193 |
|
final BooleanLatch l = new BooleanLatch(); |
1194 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
1194 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
1195 |
|
public void realRun() throws InterruptedException { |
1196 |
|
assertFalse(l.isSignalled()); |
1197 |
< |
long nanos = MILLISECONDS.toNanos(SMALL_DELAY_MS); |
1197 |
> |
long nanos = MILLISECONDS.toNanos(2 * LONG_DELAY_MS); |
1198 |
|
l.tryAcquireSharedNanos(0, nanos); |
1199 |
|
}}); |
1200 |
|
|
1201 |
< |
t.start(); |
1006 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1201 |
> |
waitForQueuedThread(l, t); |
1202 |
|
assertFalse(l.isSignalled()); |
1203 |
|
t.interrupt(); |
1204 |
< |
t.join(); |
1204 |
> |
awaitTermination(t); |
1205 |
> |
assertFalse(l.isSignalled()); |
1206 |
|
} |
1207 |
|
|
1208 |
|
/** |
1209 |
< |
* acquireSharedTimed times out if not released before timeout |
1209 |
> |
* tryAcquireSharedNanos times out if not released before timeout |
1210 |
|
*/ |
1211 |
< |
public void testAcquireSharedNanos_Timeout() throws InterruptedException { |
1211 |
> |
public void testTryAcquireSharedNanos_Timeout() { |
1212 |
|
final BooleanLatch l = new BooleanLatch(); |
1213 |
< |
Thread t = new Thread(new CheckedRunnable() { |
1213 |
> |
final BooleanLatch observedQueued = new BooleanLatch(); |
1214 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
1215 |
|
public void realRun() throws InterruptedException { |
1216 |
|
assertFalse(l.isSignalled()); |
1217 |
< |
long nanos = MILLISECONDS.toNanos(SMALL_DELAY_MS); |
1218 |
< |
assertFalse(l.tryAcquireSharedNanos(0, nanos)); |
1217 |
> |
for (long millis = timeoutMillis(); |
1218 |
> |
!observedQueued.isSignalled(); |
1219 |
> |
millis *= 2) { |
1220 |
> |
long nanos = MILLISECONDS.toNanos(millis); |
1221 |
> |
long startTime = System.nanoTime(); |
1222 |
> |
assertFalse(l.tryAcquireSharedNanos(0, nanos)); |
1223 |
> |
assertTrue(millisElapsedSince(startTime) >= millis); |
1224 |
> |
} |
1225 |
> |
assertFalse(l.isSignalled()); |
1226 |
|
}}); |
1227 |
|
|
1228 |
< |
t.start(); |
1229 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1228 |
> |
waitForQueuedThread(l, t); |
1229 |
> |
observedQueued.releaseShared(0); |
1230 |
|
assertFalse(l.isSignalled()); |
1231 |
< |
t.join(); |
1231 |
> |
awaitTermination(t); |
1232 |
> |
assertFalse(l.isSignalled()); |
1233 |
> |
} |
1234 |
> |
|
1235 |
> |
/** |
1236 |
> |
* awaitNanos/timed await with 0 wait times out immediately |
1237 |
> |
*/ |
1238 |
> |
public void testAwait_Zero() throws InterruptedException { |
1239 |
> |
final Mutex sync = new Mutex(); |
1240 |
> |
final ConditionObject c = sync.newCondition(); |
1241 |
> |
sync.acquire(); |
1242 |
> |
assertTrue(c.awaitNanos(0L) <= 0); |
1243 |
> |
assertFalse(c.await(0L, NANOSECONDS)); |
1244 |
> |
sync.release(); |
1245 |
> |
} |
1246 |
> |
|
1247 |
> |
/** |
1248 |
> |
* awaitNanos/timed await with maximum negative wait times does not underflow |
1249 |
> |
*/ |
1250 |
> |
public void testAwait_NegativeInfinity() throws InterruptedException { |
1251 |
> |
final Mutex sync = new Mutex(); |
1252 |
> |
final ConditionObject c = sync.newCondition(); |
1253 |
> |
sync.acquire(); |
1254 |
> |
assertTrue(c.awaitNanos(Long.MIN_VALUE) <= 0); |
1255 |
> |
assertFalse(c.await(Long.MIN_VALUE, NANOSECONDS)); |
1256 |
> |
sync.release(); |
1257 |
> |
} |
1258 |
> |
|
1259 |
> |
/** |
1260 |
> |
* Tests scenario for |
1261 |
> |
* JDK-8191937: Lost interrupt in AbstractQueuedSynchronizer when tryAcquire methods throw |
1262 |
> |
*/ |
1263 |
> |
public void testInterruptedFailingAcquire() throws InterruptedException { |
1264 |
> |
final RuntimeException ex = new RuntimeException(); |
1265 |
> |
|
1266 |
> |
// A synchronizer only offering a choice of failure modes |
1267 |
> |
class Sync extends AbstractQueuedLongSynchronizer { |
1268 |
> |
boolean pleaseThrow; |
1269 |
> |
@Override protected boolean tryAcquire(long ignored) { |
1270 |
> |
if (pleaseThrow) throw ex; |
1271 |
> |
return false; |
1272 |
> |
} |
1273 |
> |
@Override protected long tryAcquireShared(long ignored) { |
1274 |
> |
if (pleaseThrow) throw ex; |
1275 |
> |
return -1; |
1276 |
> |
} |
1277 |
> |
@Override protected boolean tryRelease(long ignored) { |
1278 |
> |
return true; |
1279 |
> |
} |
1280 |
> |
@Override protected boolean tryReleaseShared(long ignored) { |
1281 |
> |
return true; |
1282 |
> |
} |
1283 |
> |
} |
1284 |
> |
|
1285 |
> |
final Sync s = new Sync(); |
1286 |
> |
|
1287 |
> |
final Thread thread = newStartedThread(new CheckedRunnable() { |
1288 |
> |
public void realRun() { |
1289 |
> |
try { |
1290 |
> |
if (ThreadLocalRandom.current().nextBoolean()) |
1291 |
> |
s.acquire(1); |
1292 |
> |
else |
1293 |
> |
s.acquireShared(1); |
1294 |
> |
shouldThrow(); |
1295 |
> |
} catch (Throwable t) { |
1296 |
> |
assertSame(ex, t); |
1297 |
> |
assertTrue(Thread.interrupted()); |
1298 |
> |
} |
1299 |
> |
}}); |
1300 |
> |
waitForThreadToEnterWaitState(thread); |
1301 |
> |
assertSame(thread, s.getFirstQueuedThread()); |
1302 |
> |
assertTrue(s.hasQueuedPredecessors()); |
1303 |
> |
assertTrue(s.hasQueuedThreads()); |
1304 |
> |
assertEquals(1, s.getQueueLength()); |
1305 |
> |
|
1306 |
> |
s.pleaseThrow = true; |
1307 |
> |
thread.interrupt(); |
1308 |
> |
s.release(1); |
1309 |
> |
awaitTermination(thread); |
1310 |
|
} |
1311 |
|
|
1312 |
|
} |