18 |
|
import java.util.concurrent.Executors; |
19 |
|
import java.util.concurrent.ExecutorService; |
20 |
|
import java.util.concurrent.SynchronousQueue; |
21 |
+ |
import java.util.concurrent.ThreadLocalRandom; |
22 |
|
|
23 |
|
import junit.framework.Test; |
24 |
|
|
37 |
|
} |
38 |
|
|
39 |
|
public static void main(String[] args) { |
40 |
< |
junit.textui.TestRunner.run(suite()); |
40 |
> |
main(suite(), args); |
41 |
|
} |
42 |
|
|
43 |
|
public static Test suite() { |
97 |
|
} |
98 |
|
|
99 |
|
/** |
100 |
< |
* addAll throws ISE if no active taker |
100 |
> |
* addAll throws IllegalStateException if no active taker |
101 |
|
*/ |
102 |
|
public void testAddAll_ISE() { testAddAll_ISE(false); } |
103 |
|
public void testAddAll_ISE_fair() { testAddAll_ISE(true); } |
139 |
|
}}); |
140 |
|
|
141 |
|
await(pleaseInterrupt); |
142 |
< |
assertThreadStaysAlive(t); |
142 |
> |
if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING); |
143 |
|
t.interrupt(); |
144 |
|
awaitTermination(t); |
145 |
|
assertEquals(0, q.remainingCapacity()); |
159 |
|
pleaseTake.countDown(); |
160 |
|
q.put(one); |
161 |
|
|
162 |
+ |
Thread.currentThread().interrupt(); |
163 |
+ |
try { |
164 |
+ |
q.put(99); |
165 |
+ |
shouldThrow(); |
166 |
+ |
} catch (InterruptedException success) {} |
167 |
+ |
assertFalse(Thread.interrupted()); |
168 |
+ |
|
169 |
|
pleaseInterrupt.countDown(); |
170 |
|
try { |
171 |
|
q.put(99); |
180 |
|
catch (InterruptedException e) { threadUnexpectedException(e); } |
181 |
|
|
182 |
|
await(pleaseInterrupt); |
183 |
< |
assertThreadStaysAlive(t); |
183 |
> |
if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING); |
184 |
|
t.interrupt(); |
185 |
|
awaitTermination(t); |
186 |
|
assertEquals(0, q.remainingCapacity()); |
189 |
|
/** |
190 |
|
* timed offer times out if elements not taken |
191 |
|
*/ |
192 |
< |
public void testTimedOffer() { testTimedOffer(false); } |
193 |
< |
public void testTimedOffer_fair() { testTimedOffer(true); } |
186 |
< |
public void testTimedOffer(boolean fair) { |
192 |
> |
public void testTimedOffer() { |
193 |
> |
final boolean fair = ThreadLocalRandom.current().nextBoolean(); |
194 |
|
final SynchronousQueue q = new SynchronousQueue(fair); |
195 |
|
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
196 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
197 |
|
public void realRun() throws InterruptedException { |
198 |
|
long startTime = System.nanoTime(); |
199 |
+ |
|
200 |
|
assertFalse(q.offer(new Object(), timeoutMillis(), MILLISECONDS)); |
201 |
|
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
202 |
+ |
|
203 |
+ |
Thread.currentThread().interrupt(); |
204 |
+ |
try { |
205 |
+ |
q.offer(new Object(), randomTimeout(), randomTimeUnit()); |
206 |
+ |
shouldThrow(); |
207 |
+ |
} catch (InterruptedException success) {} |
208 |
+ |
assertFalse(Thread.interrupted()); |
209 |
+ |
|
210 |
|
pleaseInterrupt.countDown(); |
211 |
|
try { |
212 |
< |
q.offer(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS); |
212 |
> |
q.offer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
213 |
|
shouldThrow(); |
214 |
|
} catch (InterruptedException success) {} |
215 |
+ |
assertFalse(Thread.interrupted()); |
216 |
+ |
|
217 |
+ |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
218 |
|
}}); |
219 |
|
|
220 |
|
await(pleaseInterrupt); |
221 |
< |
assertThreadStaysAlive(t); |
221 |
> |
if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING); |
222 |
|
t.interrupt(); |
223 |
|
awaitTermination(t); |
224 |
|
} |
247 |
|
/** |
248 |
|
* timed poll with nonzero timeout times out if no active putter |
249 |
|
*/ |
250 |
< |
public void testTimedPoll() { testTimedPoll(false); } |
251 |
< |
public void testTimedPoll_fair() { testTimedPoll(true); } |
233 |
< |
public void testTimedPoll(boolean fair) { |
250 |
> |
public void testTimedPoll() { |
251 |
> |
final boolean fair = ThreadLocalRandom.current().nextBoolean(); |
252 |
|
final SynchronousQueue q = new SynchronousQueue(fair); |
253 |
< |
long startTime = System.nanoTime(); |
253 |
> |
final long startTime = System.nanoTime(); |
254 |
|
try { assertNull(q.poll(timeoutMillis(), MILLISECONDS)); } |
255 |
|
catch (InterruptedException e) { threadUnexpectedException(e); } |
256 |
|
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
260 |
|
* timed poll before a delayed offer times out, returning null; |
261 |
|
* after offer succeeds; on interruption throws |
262 |
|
*/ |
263 |
< |
public void testTimedPollWithOffer() { testTimedPollWithOffer(false); } |
264 |
< |
public void testTimedPollWithOffer_fair() { testTimedPollWithOffer(true); } |
247 |
< |
public void testTimedPollWithOffer(boolean fair) { |
263 |
> |
public void testTimedPollWithOffer() { |
264 |
> |
final boolean fair = ThreadLocalRandom.current().nextBoolean(); |
265 |
|
final SynchronousQueue q = new SynchronousQueue(fair); |
266 |
|
final CountDownLatch pleaseOffer = new CountDownLatch(1); |
267 |
|
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
274 |
|
pleaseOffer.countDown(); |
275 |
|
startTime = System.nanoTime(); |
276 |
|
assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
260 |
– |
assertTrue(millisElapsedSince(startTime) < MEDIUM_DELAY_MS); |
277 |
|
|
278 |
|
Thread.currentThread().interrupt(); |
279 |
|
try { |
280 |
< |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
280 |
> |
q.poll(randomTimeout(), randomTimeUnit()); |
281 |
|
shouldThrow(); |
282 |
|
} catch (InterruptedException success) {} |
283 |
|
assertFalse(Thread.interrupted()); |
288 |
|
shouldThrow(); |
289 |
|
} catch (InterruptedException success) {} |
290 |
|
assertFalse(Thread.interrupted()); |
291 |
+ |
|
292 |
+ |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
293 |
|
}}); |
294 |
|
|
295 |
|
await(pleaseOffer); |
296 |
|
long startTime = System.nanoTime(); |
297 |
|
try { assertTrue(q.offer(zero, LONG_DELAY_MS, MILLISECONDS)); } |
298 |
|
catch (InterruptedException e) { threadUnexpectedException(e); } |
299 |
< |
assertTrue(millisElapsedSince(startTime) < MEDIUM_DELAY_MS); |
299 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
300 |
|
|
301 |
|
await(pleaseInterrupt); |
302 |
< |
assertThreadStaysAlive(t); |
302 |
> |
if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING); |
303 |
|
t.interrupt(); |
304 |
|
awaitTermination(t); |
305 |
|
} |
418 |
|
public void testToArray2() { testToArray2(false); } |
419 |
|
public void testToArray2_fair() { testToArray2(true); } |
420 |
|
public void testToArray2(boolean fair) { |
421 |
< |
final SynchronousQueue<Integer> q |
404 |
< |
= new SynchronousQueue<Integer>(fair); |
421 |
> |
final SynchronousQueue<Integer> q = new SynchronousQueue<>(fair); |
422 |
|
Integer[] a; |
423 |
|
|
424 |
|
a = new Integer[0]; |
440 |
|
public void testToArray_null(boolean fair) { |
441 |
|
final SynchronousQueue q = new SynchronousQueue(fair); |
442 |
|
try { |
443 |
< |
Object[] o = q.toArray(null); |
443 |
> |
Object[] o = q.toArray((Object[])null); |
444 |
|
shouldThrow(); |
445 |
|
} catch (NullPointerException success) {} |
446 |
|
} |
455 |
|
} |
456 |
|
|
457 |
|
/** |
458 |
< |
* iterator remove throws ISE |
458 |
> |
* iterator remove throws IllegalStateException |
459 |
|
*/ |
460 |
|
public void testIteratorRemove() { testIteratorRemove(false); } |
461 |
|
public void testIteratorRemove_fair() { testIteratorRemove(true); } |
486 |
|
public void testOfferInExecutor_fair() { testOfferInExecutor(true); } |
487 |
|
public void testOfferInExecutor(boolean fair) { |
488 |
|
final SynchronousQueue q = new SynchronousQueue(fair); |
472 |
– |
ExecutorService executor = Executors.newFixedThreadPool(2); |
489 |
|
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
490 |
+ |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
491 |
+ |
try (PoolCleaner cleaner = cleaner(executor)) { |
492 |
|
|
493 |
< |
executor.execute(new CheckedRunnable() { |
494 |
< |
public void realRun() throws InterruptedException { |
495 |
< |
assertFalse(q.offer(one)); |
496 |
< |
threadsStarted.await(); |
497 |
< |
assertTrue(q.offer(one, LONG_DELAY_MS, MILLISECONDS)); |
498 |
< |
assertEquals(0, q.remainingCapacity()); |
499 |
< |
}}); |
500 |
< |
|
501 |
< |
executor.execute(new CheckedRunnable() { |
502 |
< |
public void realRun() throws InterruptedException { |
503 |
< |
threadsStarted.await(); |
504 |
< |
assertSame(one, q.take()); |
505 |
< |
}}); |
506 |
< |
|
489 |
< |
joinPool(executor); |
493 |
> |
executor.execute(new CheckedRunnable() { |
494 |
> |
public void realRun() throws InterruptedException { |
495 |
> |
assertFalse(q.offer(one)); |
496 |
> |
threadsStarted.await(); |
497 |
> |
assertTrue(q.offer(one, LONG_DELAY_MS, MILLISECONDS)); |
498 |
> |
assertEquals(0, q.remainingCapacity()); |
499 |
> |
}}); |
500 |
> |
|
501 |
> |
executor.execute(new CheckedRunnable() { |
502 |
> |
public void realRun() throws InterruptedException { |
503 |
> |
threadsStarted.await(); |
504 |
> |
assertSame(one, q.take()); |
505 |
> |
}}); |
506 |
> |
} |
507 |
|
} |
508 |
|
|
509 |
|
/** |
514 |
|
public void testPollInExecutor(boolean fair) { |
515 |
|
final SynchronousQueue q = new SynchronousQueue(fair); |
516 |
|
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
517 |
< |
ExecutorService executor = Executors.newFixedThreadPool(2); |
518 |
< |
executor.execute(new CheckedRunnable() { |
519 |
< |
public void realRun() throws InterruptedException { |
520 |
< |
assertNull(q.poll()); |
521 |
< |
threadsStarted.await(); |
522 |
< |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
523 |
< |
assertTrue(q.isEmpty()); |
524 |
< |
}}); |
525 |
< |
|
526 |
< |
executor.execute(new CheckedRunnable() { |
527 |
< |
public void realRun() throws InterruptedException { |
528 |
< |
threadsStarted.await(); |
529 |
< |
q.put(one); |
530 |
< |
}}); |
531 |
< |
|
532 |
< |
joinPool(executor); |
517 |
> |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
518 |
> |
try (PoolCleaner cleaner = cleaner(executor)) { |
519 |
> |
executor.execute(new CheckedRunnable() { |
520 |
> |
public void realRun() throws InterruptedException { |
521 |
> |
assertNull(q.poll()); |
522 |
> |
threadsStarted.await(); |
523 |
> |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
524 |
> |
assertTrue(q.isEmpty()); |
525 |
> |
}}); |
526 |
> |
|
527 |
> |
executor.execute(new CheckedRunnable() { |
528 |
> |
public void realRun() throws InterruptedException { |
529 |
> |
threadsStarted.await(); |
530 |
> |
q.put(one); |
531 |
> |
}}); |
532 |
> |
} |
533 |
|
} |
534 |
|
|
535 |
|
/** |
536 |
< |
* a deserialized serialized queue is usable |
536 |
> |
* a deserialized/reserialized queue is usable |
537 |
|
*/ |
538 |
|
public void testSerialization() { |
539 |
|
final SynchronousQueue x = new SynchronousQueue(); |
586 |
|
fail("timed out"); |
587 |
|
Thread.yield(); |
588 |
|
} |
589 |
< |
assertTrue(l.size() == 1); |
589 |
> |
assertEquals(1, l.size()); |
590 |
|
assertSame(one, l.get(0)); |
591 |
|
awaitTermination(t); |
592 |
|
} |
607 |
|
}}); |
608 |
|
|
609 |
|
ArrayList l = new ArrayList(); |
610 |
< |
delay(SHORT_DELAY_MS); |
611 |
< |
q.drainTo(l, 1); |
610 |
> |
int drained; |
611 |
> |
while ((drained = q.drainTo(l, 1)) == 0) Thread.yield(); |
612 |
> |
assertEquals(1, drained); |
613 |
|
assertEquals(1, l.size()); |
614 |
< |
q.drainTo(l, 1); |
614 |
> |
while ((drained = q.drainTo(l, 1)) == 0) Thread.yield(); |
615 |
> |
assertEquals(1, drained); |
616 |
|
assertEquals(2, l.size()); |
617 |
|
assertTrue(l.contains(one)); |
618 |
|
assertTrue(l.contains(two)); |