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import java.util.concurrent.Executors; |
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import java.util.concurrent.ExecutorService; |
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import java.util.concurrent.SynchronousQueue; |
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import java.util.concurrent.ThreadLocalRandom; |
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import junit.framework.Test; |
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97 |
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} |
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/** |
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* addAll throws ISE if no active taker |
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* addAll throws IllegalStateException if no active taker |
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*/ |
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public void testAddAll_ISE() { testAddAll_ISE(false); } |
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public void testAddAll_ISE_fair() { testAddAll_ISE(true); } |
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}}); |
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await(pleaseInterrupt); |
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assertThreadStaysAlive(t); |
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if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING); |
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t.interrupt(); |
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awaitTermination(t); |
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assertEquals(0, q.remainingCapacity()); |
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pleaseTake.countDown(); |
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q.put(one); |
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Thread.currentThread().interrupt(); |
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try { |
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q.put(99); |
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shouldThrow(); |
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} catch (InterruptedException success) {} |
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assertFalse(Thread.interrupted()); |
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|
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pleaseInterrupt.countDown(); |
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try { |
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q.put(99); |
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catch (InterruptedException e) { threadUnexpectedException(e); } |
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await(pleaseInterrupt); |
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assertThreadStaysAlive(t); |
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if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING); |
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t.interrupt(); |
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awaitTermination(t); |
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assertEquals(0, q.remainingCapacity()); |
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/** |
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* timed offer times out if elements not taken |
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*/ |
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public void testTimedOffer() { testTimedOffer(false); } |
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public void testTimedOffer_fair() { testTimedOffer(true); } |
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public void testTimedOffer(boolean fair) { |
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> |
public void testTimedOffer() { |
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> |
final boolean fair = ThreadLocalRandom.current().nextBoolean(); |
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final SynchronousQueue q = new SynchronousQueue(fair); |
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final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
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Thread t = newStartedThread(new CheckedRunnable() { |
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public void realRun() throws InterruptedException { |
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long startTime = System.nanoTime(); |
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|
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assertFalse(q.offer(new Object(), timeoutMillis(), MILLISECONDS)); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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|
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Thread.currentThread().interrupt(); |
204 |
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try { |
205 |
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q.offer(new Object(), randomTimeout(), randomTimeUnit()); |
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shouldThrow(); |
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} catch (InterruptedException success) {} |
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assertFalse(Thread.interrupted()); |
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|
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pleaseInterrupt.countDown(); |
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try { |
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< |
q.offer(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS); |
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q.offer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
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shouldThrow(); |
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} catch (InterruptedException success) {} |
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assertFalse(Thread.interrupted()); |
216 |
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|
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assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
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}}); |
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await(pleaseInterrupt); |
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assertThreadStaysAlive(t); |
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if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING); |
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t.interrupt(); |
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awaitTermination(t); |
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} |
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/** |
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* timed poll with nonzero timeout times out if no active putter |
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*/ |
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< |
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(); |
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final SynchronousQueue q = new SynchronousQueue(fair); |
253 |
< |
long startTime = System.nanoTime(); |
253 |
> |
final long startTime = System.nanoTime(); |
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try { assertNull(q.poll(timeoutMillis(), MILLISECONDS)); } |
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catch (InterruptedException e) { threadUnexpectedException(e); } |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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* timed poll before a delayed offer times out, returning null; |
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* after offer succeeds; on interruption throws |
262 |
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*/ |
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(); |
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final SynchronousQueue q = new SynchronousQueue(fair); |
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final CountDownLatch pleaseOffer = new CountDownLatch(1); |
267 |
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final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
277 |
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|
278 |
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Thread.currentThread().interrupt(); |
279 |
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try { |
280 |
< |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
280 |
> |
q.poll(randomTimeout(), randomTimeUnit()); |
281 |
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shouldThrow(); |
282 |
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} catch (InterruptedException success) {} |
283 |
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assertFalse(Thread.interrupted()); |
299 |
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assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
300 |
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|
301 |
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await(pleaseInterrupt); |
302 |
< |
assertThreadStaysAlive(t); |
302 |
> |
if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING); |
303 |
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t.interrupt(); |
304 |
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awaitTermination(t); |
305 |
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} |
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 |
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} |
455 |
|
} |
456 |
|
|
457 |
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/** |
458 |
< |
* iterator remove throws ISE |
458 |
> |
* iterator remove throws IllegalStateException |
459 |
|
*/ |
460 |
|
public void testIteratorRemove() { testIteratorRemove(false); } |
461 |
|
public void testIteratorRemove_fair() { testIteratorRemove(true); } |
533 |
|
} |
534 |
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|
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(); |