18 |
|
import java.util.NoSuchElementException; |
19 |
|
import java.util.concurrent.*; |
20 |
|
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
21 |
+ |
import static java.util.concurrent.TimeUnit.NANOSECONDS; |
22 |
|
import junit.framework.Test; |
23 |
|
import junit.framework.TestSuite; |
24 |
|
|
25 |
|
@SuppressWarnings({"unchecked", "rawtypes"}) |
26 |
|
public class LinkedTransferQueueTest extends JSR166TestCase { |
27 |
|
|
28 |
+ |
public static class Generic extends BlockingQueueTest { |
29 |
+ |
protected BlockingQueue emptyCollection() { |
30 |
+ |
return new LinkedTransferQueue(); |
31 |
+ |
} |
32 |
+ |
} |
33 |
+ |
|
34 |
|
public static void main(String[] args) { |
35 |
|
junit.textui.TestRunner.run(suite()); |
36 |
|
} |
37 |
|
|
38 |
|
public static Test suite() { |
39 |
< |
return new TestSuite(LinkedTransferQueueTest.class); |
39 |
> |
return newTestSuite(LinkedTransferQueueTest.class, |
40 |
> |
new Generic().testSuite()); |
41 |
|
} |
42 |
|
|
43 |
< |
void checkEmpty(LinkedTransferQueue q) throws InterruptedException { |
36 |
< |
assertTrue(q.isEmpty()); |
37 |
< |
assertEquals(0, q.size()); |
38 |
< |
assertNull(q.peek()); |
39 |
< |
assertNull(q.poll()); |
40 |
< |
assertNull(q.poll(0, MILLISECONDS)); |
41 |
< |
assertEquals(q.toString(), "[]"); |
42 |
< |
assertTrue(Arrays.equals(q.toArray(), new Object[0])); |
43 |
< |
assertFalse(q.iterator().hasNext()); |
44 |
< |
try { |
45 |
< |
q.element(); |
46 |
< |
shouldThrow(); |
47 |
< |
} catch (NoSuchElementException success) {} |
48 |
< |
try { |
49 |
< |
q.iterator().next(); |
50 |
< |
shouldThrow(); |
51 |
< |
} catch (NoSuchElementException success) {} |
43 |
> |
void checkEmpty(BlockingQueue q) { |
44 |
|
try { |
45 |
< |
q.remove(); |
46 |
< |
shouldThrow(); |
47 |
< |
} catch (NoSuchElementException success) {} |
45 |
> |
assertTrue(q.isEmpty()); |
46 |
> |
assertEquals(0, q.size()); |
47 |
> |
assertNull(q.peek()); |
48 |
> |
assertNull(q.poll()); |
49 |
> |
assertNull(q.poll(0, MILLISECONDS)); |
50 |
> |
assertEquals(q.toString(), "[]"); |
51 |
> |
assertTrue(Arrays.equals(q.toArray(), new Object[0])); |
52 |
> |
assertFalse(q.iterator().hasNext()); |
53 |
> |
try { |
54 |
> |
q.element(); |
55 |
> |
shouldThrow(); |
56 |
> |
} catch (NoSuchElementException success) {} |
57 |
> |
try { |
58 |
> |
q.iterator().next(); |
59 |
> |
shouldThrow(); |
60 |
> |
} catch (NoSuchElementException success) {} |
61 |
> |
try { |
62 |
> |
q.remove(); |
63 |
> |
shouldThrow(); |
64 |
> |
} catch (NoSuchElementException success) {} |
65 |
> |
} catch (InterruptedException ie) { |
66 |
> |
threadUnexpectedException(ie); |
67 |
> |
} |
68 |
|
} |
69 |
|
|
70 |
|
/** |
278 |
|
} |
279 |
|
|
280 |
|
/** |
281 |
< |
* take blocks interruptibly when empty |
270 |
< |
*/ |
271 |
< |
public void testTakeFromEmpty() throws InterruptedException { |
272 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
273 |
< |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
274 |
< |
public void realRun() throws InterruptedException { |
275 |
< |
q.take(); |
276 |
< |
}}); |
277 |
< |
Thread.sleep(SHORT_DELAY_MS); |
278 |
< |
t.interrupt(); |
279 |
< |
t.join(); |
280 |
< |
} |
281 |
< |
|
282 |
< |
/** |
283 |
< |
* Take removes existing elements until empty, then blocks interruptibly |
281 |
> |
* take removes existing elements until empty, then blocks interruptibly |
282 |
|
*/ |
283 |
|
public void testBlockingTake() throws InterruptedException { |
284 |
< |
final LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
285 |
< |
Thread t = new Thread(new CheckedRunnable() { |
284 |
> |
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
285 |
> |
final CountDownLatch aboutToWait = new CountDownLatch(1); |
286 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
287 |
|
public void realRun() throws InterruptedException { |
288 |
|
for (int i = 0; i < SIZE; ++i) { |
289 |
|
assertEquals(i, (int) q.take()); |
290 |
|
} |
291 |
+ |
aboutToWait.countDown(); |
292 |
|
try { |
293 |
|
q.take(); |
294 |
|
shouldThrow(); |
295 |
|
} catch (InterruptedException success) {} |
296 |
|
}}); |
297 |
|
|
298 |
< |
t.start(); |
299 |
< |
Thread.sleep(SHORT_DELAY_MS); |
298 |
> |
aboutToWait.await(); |
299 |
> |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
300 |
|
t.interrupt(); |
301 |
< |
t.join(); |
301 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
302 |
|
checkEmpty(q); |
303 |
|
} |
304 |
|
|
315 |
|
} |
316 |
|
|
317 |
|
/** |
318 |
< |
* timed pool with zero timeout succeeds when non-empty, else times out |
318 |
> |
* timed poll with zero timeout succeeds when non-empty, else times out |
319 |
|
*/ |
320 |
|
public void testTimedPoll0() throws InterruptedException { |
321 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
327 |
|
} |
328 |
|
|
329 |
|
/** |
330 |
< |
* timed pool with nonzero timeout succeeds when non-empty, else times out |
330 |
> |
* timed poll with nonzero timeout succeeds when non-empty, else times out |
331 |
|
*/ |
332 |
|
public void testTimedPoll() throws InterruptedException { |
333 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
334 |
|
for (int i = 0; i < SIZE; ++i) { |
335 |
|
long t0 = System.nanoTime(); |
336 |
< |
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
337 |
< |
long millisElapsed = (System.nanoTime() - t0)/(1024 * 1024); |
338 |
< |
assertTrue(millisElapsed < SMALL_DELAY_MS); |
336 |
> |
assertEquals(i, (int) q.poll(SMALL_DELAY_MS, MILLISECONDS)); |
337 |
> |
assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS); |
338 |
|
} |
339 |
+ |
long t0 = System.nanoTime(); |
340 |
|
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
341 |
+ |
assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS); |
342 |
|
checkEmpty(q); |
343 |
|
} |
344 |
|
|
347 |
|
* returning timeout status |
348 |
|
*/ |
349 |
|
public void testInterruptedTimedPoll() throws InterruptedException { |
350 |
< |
final LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
350 |
> |
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
351 |
> |
final CountDownLatch aboutToWait = new CountDownLatch(1); |
352 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
353 |
|
public void realRun() throws InterruptedException { |
354 |
|
for (int i = 0; i < SIZE; ++i) { |
355 |
|
long t0 = System.nanoTime(); |
356 |
|
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
357 |
< |
long millisElapsed = (System.nanoTime() - t0)/(1024 * 1024); |
356 |
< |
assertTrue(millisElapsed < SMALL_DELAY_MS); |
357 |
> |
assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS); |
358 |
|
} |
359 |
+ |
long t0 = System.nanoTime(); |
360 |
+ |
aboutToWait.countDown(); |
361 |
|
try { |
362 |
< |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
362 |
> |
q.poll(MEDIUM_DELAY_MS, MILLISECONDS); |
363 |
|
shouldThrow(); |
364 |
< |
} catch (InterruptedException success) {} |
364 |
> |
} catch (InterruptedException success) { |
365 |
> |
assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS); |
366 |
> |
} |
367 |
|
}}); |
368 |
|
|
369 |
< |
Thread.sleep(SMALL_DELAY_MS); |
369 |
> |
aboutToWait.await(); |
370 |
> |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
371 |
|
t.interrupt(); |
372 |
< |
t.join(); |
372 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
373 |
|
checkEmpty(q); |
374 |
|
} |
375 |
|
|
376 |
|
/** |
377 |
< |
* timed poll before a delayed offer fails; after offer succeeds; |
378 |
< |
* on interruption throws |
377 |
> |
* timed poll after thread interrupted throws InterruptedException |
378 |
> |
* instead of returning timeout status |
379 |
|
*/ |
380 |
< |
public void testTimedPollWithOffer() throws InterruptedException { |
381 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
382 |
< |
Thread t = new Thread(new CheckedRunnable() { |
380 |
> |
public void testTimedPollAfterInterrupt() throws InterruptedException { |
381 |
> |
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
382 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
383 |
|
public void realRun() throws InterruptedException { |
384 |
< |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
385 |
< |
assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
384 |
> |
Thread.currentThread().interrupt(); |
385 |
> |
for (int i = 0; i < SIZE; ++i) { |
386 |
> |
long t0 = System.nanoTime(); |
387 |
> |
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
388 |
> |
assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS); |
389 |
> |
} |
390 |
|
try { |
391 |
< |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
391 |
> |
q.poll(MEDIUM_DELAY_MS, MILLISECONDS); |
392 |
|
shouldThrow(); |
393 |
|
} catch (InterruptedException success) {} |
394 |
|
}}); |
395 |
|
|
396 |
< |
t.start(); |
397 |
< |
Thread.sleep(SMALL_DELAY_MS); |
388 |
< |
assertTrue(q.offer(zero, SHORT_DELAY_MS, MILLISECONDS)); |
389 |
< |
t.interrupt(); |
390 |
< |
t.join(); |
396 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
397 |
> |
checkEmpty(q); |
398 |
|
} |
399 |
|
|
400 |
|
/** |
550 |
|
} |
551 |
|
|
552 |
|
/** |
553 |
< |
* toArray() contains all elements |
553 |
> |
* toArray() contains all elements in FIFO order |
554 |
|
*/ |
555 |
< |
public void testToArray() throws InterruptedException { |
555 |
> |
public void testToArray() { |
556 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
557 |
|
Object[] o = q.toArray(); |
558 |
|
for (int i = 0; i < o.length; i++) { |
559 |
< |
assertEquals(o[i], q.take()); |
559 |
> |
assertSame(o[i], q.poll()); |
560 |
|
} |
561 |
|
} |
562 |
|
|
563 |
|
/** |
564 |
< |
* toArray(a) contains all elements |
564 |
> |
* toArray(a) contains all elements in FIFO order |
565 |
|
*/ |
566 |
< |
public void testToArray2() throws InterruptedException { |
566 |
> |
public void testToArray2() { |
567 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
568 |
|
Integer[] ints = new Integer[SIZE]; |
569 |
< |
ints = q.toArray(ints); |
569 |
> |
Integer[] array = q.toArray(ints); |
570 |
> |
assertSame(ints, array); |
571 |
|
for (int i = 0; i < ints.length; i++) { |
572 |
< |
assertEquals(ints[i], q.take()); |
572 |
> |
assertSame(ints[i], q.poll()); |
573 |
|
} |
574 |
|
} |
575 |
|
|
576 |
|
/** |
577 |
|
* toArray(null) throws NullPointerException |
578 |
|
*/ |
579 |
< |
public void testToArray_BadArg() { |
579 |
> |
public void testToArray_NullArg() { |
580 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
581 |
|
try { |
582 |
< |
Object o[] = q.toArray(null); |
582 |
> |
q.toArray(null); |
583 |
|
shouldThrow(); |
584 |
|
} catch (NullPointerException success) {} |
585 |
|
} |
586 |
|
|
587 |
|
/** |
588 |
< |
* toArray(incompatible array type) throws CCE |
588 |
> |
* toArray(incompatible array type) throws ArrayStoreException |
589 |
|
*/ |
590 |
|
public void testToArray1_BadArg() { |
591 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
592 |
|
try { |
593 |
< |
Object o[] = q.toArray(new String[10]); |
593 |
> |
q.toArray(new String[10]); |
594 |
|
shouldThrow(); |
595 |
|
} catch (ArrayStoreException success) {} |
596 |
|
} |
622 |
|
it.remove(); |
623 |
|
|
624 |
|
it = q.iterator(); |
625 |
< |
assertEquals(it.next(), one); |
626 |
< |
assertEquals(it.next(), three); |
625 |
> |
assertSame(it.next(), one); |
626 |
> |
assertSame(it.next(), three); |
627 |
|
assertFalse(it.hasNext()); |
628 |
|
} |
629 |
|
|
676 |
|
*/ |
677 |
|
public void testOfferInExecutor() { |
678 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
679 |
< |
q.add(one); |
672 |
< |
q.add(two); |
679 |
> |
final CountDownLatch threadsStarted = new CountDownLatch(2); |
680 |
|
ExecutorService executor = Executors.newFixedThreadPool(2); |
681 |
|
|
682 |
|
executor.execute(new CheckedRunnable() { |
683 |
< |
public void realRun() { |
684 |
< |
assertTrue(q.offer(three, MEDIUM_DELAY_MS, MILLISECONDS)); |
683 |
> |
public void realRun() throws InterruptedException { |
684 |
> |
threadsStarted.countDown(); |
685 |
> |
threadsStarted.await(); |
686 |
> |
assertTrue(q.offer(one, MEDIUM_DELAY_MS, MILLISECONDS)); |
687 |
|
}}); |
688 |
|
|
689 |
|
executor.execute(new CheckedRunnable() { |
690 |
|
public void realRun() throws InterruptedException { |
691 |
< |
Thread.sleep(SMALL_DELAY_MS); |
692 |
< |
assertEquals(one, q.take()); |
691 |
> |
threadsStarted.countDown(); |
692 |
> |
threadsStarted.await(); |
693 |
> |
assertSame(one, q.take()); |
694 |
> |
checkEmpty(q); |
695 |
|
}}); |
696 |
|
|
697 |
|
joinPool(executor); |
702 |
|
*/ |
703 |
|
public void testPollInExecutor() { |
704 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
705 |
+ |
final CountDownLatch threadsStarted = new CountDownLatch(2); |
706 |
|
ExecutorService executor = Executors.newFixedThreadPool(2); |
707 |
|
|
708 |
|
executor.execute(new CheckedRunnable() { |
709 |
|
public void realRun() throws InterruptedException { |
710 |
|
assertNull(q.poll()); |
711 |
< |
assertSame(one, q.poll(MEDIUM_DELAY_MS, MILLISECONDS)); |
712 |
< |
assertTrue(q.isEmpty()); |
711 |
> |
threadsStarted.countDown(); |
712 |
> |
threadsStarted.await(); |
713 |
> |
assertSame(one, q.poll(SMALL_DELAY_MS, MILLISECONDS)); |
714 |
> |
checkEmpty(q); |
715 |
|
}}); |
716 |
|
|
717 |
|
executor.execute(new CheckedRunnable() { |
718 |
|
public void realRun() throws InterruptedException { |
719 |
< |
Thread.sleep(SMALL_DELAY_MS); |
719 |
> |
threadsStarted.countDown(); |
720 |
> |
threadsStarted.await(); |
721 |
|
q.put(one); |
722 |
|
}}); |
723 |
|
|
743 |
|
LinkedTransferQueue r = (LinkedTransferQueue) in.readObject(); |
744 |
|
|
745 |
|
assertEquals(q.size(), r.size()); |
746 |
+ |
assertEquals(q.toString(), r.toString()); |
747 |
+ |
assertTrue(Arrays.equals(q.toArray(), r.toArray())); |
748 |
|
while (!q.isEmpty()) { |
749 |
|
assertEquals(q.remove(), r.remove()); |
750 |
|
} |
813 |
|
for (int i = 0; i < SIZE; ++i) { |
814 |
|
assertEquals(l.get(i), i); |
815 |
|
} |
816 |
< |
t.join(); |
816 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
817 |
|
assertTrue(q.size() + l.size() >= SIZE); |
818 |
|
} |
819 |
|
|
840 |
|
} |
841 |
|
|
842 |
|
/** |
843 |
< |
* drainTo(c, n) empties first max {n, size} elements of queue into c |
843 |
> |
* drainTo(c, n) empties first min(n, size) elements of queue into c |
844 |
|
*/ |
845 |
|
public void testDrainToN() { |
846 |
|
LinkedTransferQueue q = new LinkedTransferQueue(); |
869 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
870 |
|
assertEquals(q.getWaitingConsumerCount(), 0); |
871 |
|
assertFalse(q.hasWaitingConsumer()); |
872 |
+ |
final CountDownLatch threadStarted = new CountDownLatch(1); |
873 |
|
|
874 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
875 |
|
public void realRun() throws InterruptedException { |
876 |
< |
Thread.sleep(SMALL_DELAY_MS); |
877 |
< |
assertTrue(q.hasWaitingConsumer()); |
860 |
< |
assertEquals(q.getWaitingConsumerCount(), 1); |
861 |
< |
assertTrue(q.offer(one)); |
862 |
< |
assertFalse(q.hasWaitingConsumer()); |
876 |
> |
threadStarted.countDown(); |
877 |
> |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
878 |
|
assertEquals(q.getWaitingConsumerCount(), 0); |
879 |
+ |
assertFalse(q.hasWaitingConsumer()); |
880 |
|
}}); |
881 |
|
|
882 |
< |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
882 |
> |
threadStarted.await(); |
883 |
> |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
884 |
> |
assertEquals(q.getWaitingConsumerCount(), 1); |
885 |
> |
assertTrue(q.hasWaitingConsumer()); |
886 |
> |
|
887 |
> |
assertTrue(q.offer(one)); |
888 |
|
assertEquals(q.getWaitingConsumerCount(), 0); |
889 |
|
assertFalse(q.hasWaitingConsumer()); |
890 |
< |
t.join(); |
890 |
> |
|
891 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
892 |
|
} |
893 |
|
|
894 |
|
/** |
909 |
|
public void testTransfer2() throws InterruptedException { |
910 |
|
final LinkedTransferQueue<Integer> q |
911 |
|
= new LinkedTransferQueue<Integer>(); |
912 |
+ |
final CountDownLatch threadStarted = new CountDownLatch(1); |
913 |
|
|
914 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
915 |
|
public void realRun() throws InterruptedException { |
916 |
< |
q.transfer(SIZE); |
917 |
< |
threadAssertTrue(q.isEmpty()); |
916 |
> |
threadStarted.countDown(); |
917 |
> |
q.transfer(five); |
918 |
> |
checkEmpty(q); |
919 |
|
}}); |
920 |
|
|
921 |
< |
Thread.sleep(SHORT_DELAY_MS); |
921 |
> |
threadStarted.await(); |
922 |
> |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
923 |
|
assertEquals(1, q.size()); |
924 |
< |
assertEquals(SIZE, (int) q.poll()); |
925 |
< |
assertTrue(q.isEmpty()); |
926 |
< |
t.join(); |
924 |
> |
assertSame(five, q.poll()); |
925 |
> |
checkEmpty(q); |
926 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
927 |
|
} |
928 |
|
|
929 |
|
/** |
935 |
|
|
936 |
|
Thread first = newStartedThread(new CheckedRunnable() { |
937 |
|
public void realRun() throws InterruptedException { |
938 |
< |
Integer i = SIZE + 1; |
939 |
< |
q.transfer(i); |
940 |
< |
threadAssertTrue(!q.contains(i)); |
916 |
< |
threadAssertEquals(1, q.size()); |
938 |
> |
q.transfer(four); |
939 |
> |
assertTrue(!q.contains(four)); |
940 |
> |
assertEquals(1, q.size()); |
941 |
|
}}); |
942 |
|
|
943 |
|
Thread interruptedThread = newStartedThread( |
944 |
|
new CheckedInterruptedRunnable() { |
945 |
|
public void realRun() throws InterruptedException { |
946 |
< |
while (q.size() == 0) |
946 |
> |
while (q.isEmpty()) |
947 |
|
Thread.yield(); |
948 |
< |
q.transfer(SIZE); |
948 |
> |
q.transfer(five); |
949 |
|
}}); |
950 |
|
|
951 |
|
while (q.size() < 2) |
952 |
|
Thread.yield(); |
953 |
|
assertEquals(2, q.size()); |
954 |
< |
assertEquals(SIZE + 1, (int) q.poll()); |
954 |
> |
assertSame(four, q.poll()); |
955 |
|
first.join(); |
956 |
|
assertEquals(1, q.size()); |
957 |
|
interruptedThread.interrupt(); |
958 |
|
interruptedThread.join(); |
959 |
< |
assertEquals(0, q.size()); |
936 |
< |
assertTrue(q.isEmpty()); |
959 |
> |
checkEmpty(q); |
960 |
|
} |
961 |
|
|
962 |
|
/** |
969 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
970 |
|
public void realRun() throws InterruptedException { |
971 |
|
q.transfer(four); |
972 |
< |
threadAssertFalse(q.contains(four)); |
973 |
< |
threadAssertEquals(three, q.poll()); |
972 |
> |
assertFalse(q.contains(four)); |
973 |
> |
assertSame(three, q.poll()); |
974 |
|
}}); |
975 |
|
|
976 |
< |
Thread.sleep(SHORT_DELAY_MS); |
976 |
> |
while (q.isEmpty()) |
977 |
> |
Thread.yield(); |
978 |
> |
assertFalse(q.isEmpty()); |
979 |
> |
assertEquals(1, q.size()); |
980 |
|
assertTrue(q.offer(three)); |
981 |
< |
assertEquals(four, q.poll()); |
982 |
< |
t.join(); |
981 |
> |
assertSame(four, q.poll()); |
982 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
983 |
|
} |
984 |
|
|
985 |
|
/** |
992 |
|
|
993 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
994 |
|
public void realRun() throws InterruptedException { |
995 |
< |
q.transfer(SIZE); |
995 |
> |
q.transfer(four); |
996 |
|
checkEmpty(q); |
997 |
|
}}); |
998 |
|
|
999 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1000 |
< |
assertEquals(SIZE, (int) q.take()); |
999 |
> |
while (q.isEmpty()) |
1000 |
> |
Thread.yield(); |
1001 |
> |
assertFalse(q.isEmpty()); |
1002 |
> |
assertEquals(1, q.size()); |
1003 |
> |
assertSame(four, q.take()); |
1004 |
|
checkEmpty(q); |
1005 |
< |
t.join(); |
1005 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
1006 |
|
} |
1007 |
|
|
1008 |
|
/** |
1039 |
|
public void realRun() { |
1040 |
|
while (! q.hasWaitingConsumer()) |
1041 |
|
Thread.yield(); |
1042 |
< |
threadAssertTrue(q.hasWaitingConsumer()); |
1043 |
< |
threadAssertTrue(q.isEmpty()); |
1044 |
< |
threadAssertTrue(q.size() == 0); |
1016 |
< |
threadAssertTrue(q.tryTransfer(hotPotato)); |
1042 |
> |
assertTrue(q.hasWaitingConsumer()); |
1043 |
> |
checkEmpty(q); |
1044 |
> |
assertTrue(q.tryTransfer(hotPotato)); |
1045 |
|
}}); |
1046 |
|
|
1047 |
|
assertSame(hotPotato, q.poll(MEDIUM_DELAY_MS, MILLISECONDS)); |
1048 |
|
checkEmpty(q); |
1049 |
< |
t.join(); |
1049 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
1050 |
|
} |
1051 |
|
|
1052 |
|
/** |
1061 |
|
public void realRun() { |
1062 |
|
while (! q.hasWaitingConsumer()) |
1063 |
|
Thread.yield(); |
1064 |
< |
threadAssertTrue(q.hasWaitingConsumer()); |
1065 |
< |
threadAssertTrue(q.isEmpty()); |
1066 |
< |
threadAssertTrue(q.size() == 0); |
1039 |
< |
threadAssertTrue(q.tryTransfer(hotPotato)); |
1064 |
> |
assertTrue(q.hasWaitingConsumer()); |
1065 |
> |
checkEmpty(q); |
1066 |
> |
assertTrue(q.tryTransfer(hotPotato)); |
1067 |
|
}}); |
1068 |
|
|
1069 |
|
assertSame(q.take(), hotPotato); |
1070 |
|
checkEmpty(q); |
1071 |
< |
t.join(); |
1071 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
1072 |
|
} |
1073 |
|
|
1074 |
|
/** |
1075 |
< |
* tryTransfer waits the amount given if interrupted, and |
1076 |
< |
* throws interrupted exception |
1075 |
> |
* tryTransfer waits the amount given, and throws |
1076 |
> |
* InterruptedException when interrupted. |
1077 |
|
*/ |
1078 |
|
public void testTryTransfer5() throws InterruptedException { |
1079 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
1080 |
+ |
final CountDownLatch threadStarted = new CountDownLatch(1); |
1081 |
+ |
assertTrue(q.isEmpty()); |
1082 |
|
|
1083 |
< |
Thread toInterrupt = newStartedThread(new CheckedInterruptedRunnable() { |
1083 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
1084 |
|
public void realRun() throws InterruptedException { |
1085 |
< |
q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
1085 |
> |
long t0 = System.nanoTime(); |
1086 |
> |
threadStarted.countDown(); |
1087 |
> |
try { |
1088 |
> |
q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
1089 |
> |
shouldThrow(); |
1090 |
> |
} catch (InterruptedException success) {} |
1091 |
> |
assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS); |
1092 |
> |
assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS); |
1093 |
|
}}); |
1094 |
|
|
1095 |
< |
Thread.sleep(SMALL_DELAY_MS); |
1096 |
< |
toInterrupt.interrupt(); |
1097 |
< |
toInterrupt.join(); |
1095 |
> |
threadStarted.await(); |
1096 |
> |
while (q.isEmpty()) |
1097 |
> |
Thread.yield(); |
1098 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1099 |
> |
t.interrupt(); |
1100 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
1101 |
> |
checkEmpty(q); |
1102 |
|
} |
1103 |
|
|
1104 |
|
/** |
1105 |
< |
* tryTransfer gives up after the timeout and return false |
1105 |
> |
* tryTransfer gives up after the timeout and returns false |
1106 |
|
*/ |
1107 |
|
public void testTryTransfer6() throws InterruptedException { |
1108 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
1109 |
|
|
1110 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
1111 |
|
public void realRun() throws InterruptedException { |
1112 |
+ |
long t0 = System.nanoTime(); |
1113 |
|
assertFalse(q.tryTransfer(new Object(), |
1114 |
|
SHORT_DELAY_MS, MILLISECONDS)); |
1115 |
+ |
assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS); |
1116 |
+ |
checkEmpty(q); |
1117 |
|
}}); |
1118 |
|
|
1119 |
< |
Thread.sleep(SMALL_DELAY_MS); |
1119 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
1120 |
|
checkEmpty(q); |
1078 |
– |
t.join(); |
1121 |
|
} |
1122 |
|
|
1123 |
|
/** |
1131 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
1132 |
|
public void realRun() throws InterruptedException { |
1133 |
|
assertTrue(q.tryTransfer(five, MEDIUM_DELAY_MS, MILLISECONDS)); |
1134 |
< |
assertTrue(q.isEmpty()); |
1134 |
> |
checkEmpty(q); |
1135 |
|
}}); |
1136 |
|
|
1137 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1137 |
> |
while (q.size() != 2) |
1138 |
> |
Thread.yield(); |
1139 |
|
assertEquals(2, q.size()); |
1140 |
< |
assertEquals(four, q.poll()); |
1141 |
< |
assertEquals(five, q.poll()); |
1140 |
> |
assertSame(four, q.poll()); |
1141 |
> |
assertSame(five, q.poll()); |
1142 |
|
checkEmpty(q); |
1143 |
< |
t.join(); |
1143 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
1144 |
|
} |
1145 |
|
|
1146 |
|
/** |
1147 |
< |
* tryTransfer attempts to enqueue into the q and fails returning |
1148 |
< |
* false not enqueueing and the successive poll is null |
1147 |
> |
* tryTransfer attempts to enqueue into the queue and fails |
1148 |
> |
* returning false not enqueueing and the successive poll is null |
1149 |
|
*/ |
1150 |
|
public void testTryTransfer8() throws InterruptedException { |
1151 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
1152 |
|
assertTrue(q.offer(four)); |
1153 |
|
assertEquals(1, q.size()); |
1154 |
+ |
long t0 = System.nanoTime(); |
1155 |
|
assertFalse(q.tryTransfer(five, SHORT_DELAY_MS, MILLISECONDS)); |
1156 |
+ |
assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS); |
1157 |
|
assertEquals(1, q.size()); |
1158 |
< |
assertEquals(four, q.poll()); |
1158 |
> |
assertSame(four, q.poll()); |
1159 |
|
assertNull(q.poll()); |
1160 |
|
checkEmpty(q); |
1161 |
|
} |
1162 |
|
|
1163 |
|
private LinkedTransferQueue<Integer> populatedQueue(int n) { |
1164 |
|
LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>(); |
1165 |
< |
assertTrue(q.isEmpty()); |
1165 |
> |
checkEmpty(q); |
1166 |
|
for (int i = 0; i < n; i++) { |
1167 |
|
assertEquals(i, q.size()); |
1168 |
|
assertTrue(q.offer(i)); |