ViewVC Help
View File | Revision Log | Show Annotations | Download File | Root Listing
root/jsr166/jsr166/src/test/tck/ForkJoinPool8Test.java
(Generate patch)

Comparing jsr166/src/test/tck/ForkJoinPool8Test.java (file contents):
Revision 1.10 by jsr166, Sun Jul 14 16:36:37 2013 UTC vs.
Revision 1.35 by jsr166, Sat Mar 18 18:20:00 2017 UTC

# Line 4 | Line 4
4   * http://creativecommons.org/publicdomain/zero/1.0/
5   */
6  
7 < import junit.framework.*;
7 > import static java.util.concurrent.TimeUnit.MILLISECONDS;
8 > import static java.util.concurrent.TimeUnit.SECONDS;
9 >
10 > import java.util.HashSet;
11   import java.util.concurrent.CancellationException;
12 + import java.util.concurrent.CountedCompleter;
13   import java.util.concurrent.ExecutionException;
14   import java.util.concurrent.ForkJoinPool;
15   import java.util.concurrent.ForkJoinTask;
12 – import java.util.concurrent.ForkJoinWorkerThread;
16   import java.util.concurrent.RecursiveAction;
14 – import java.util.concurrent.CountedCompleter;
15 – import java.util.concurrent.ThreadLocalRandom;
16 – import java.util.concurrent.TimeUnit;
17   import java.util.concurrent.TimeoutException;
18 < import static java.util.concurrent.TimeUnit.SECONDS;
19 < import static java.util.concurrent.TimeUnit.MILLISECONDS;
20 < import java.util.Arrays;
21 < import java.util.HashSet;
18 >
19 > import junit.framework.Test;
20 > import junit.framework.TestSuite;
21  
22   public class ForkJoinPool8Test extends JSR166TestCase {
23      public static void main(String[] args) {
24 <        junit.textui.TestRunner.run(suite());
24 >        main(suite(), args);
25      }
26  
27      public static Test suite() {
# Line 180 | Line 179 | public class ForkJoinPool8Test extends J
179          public FJException(Throwable cause) { super(cause); }
180      }
181  
182 <    // A simple recursive action for testing
182 >    /** A simple recursive action for testing. */
183      final class FibAction extends CheckedRecursiveAction {
184          final int number;
185          int result;
# Line 198 | Line 197 | public class ForkJoinPool8Test extends J
197          }
198      }
199  
200 <    // A recursive action failing in base case
200 >    /** A recursive action failing in base case. */
201      static final class FailingFibAction extends RecursiveAction {
202          final int number;
203          int result;
# Line 270 | Line 269 | public class ForkJoinPool8Test extends J
269          RecursiveAction a = new CheckedRecursiveAction() {
270              protected void realCompute() {
271                  FibAction f = new FibAction(8);
272 <                final Thread myself = Thread.currentThread();
272 >                final Thread currentThread = Thread.currentThread();
273  
274                  // test join()
275                  assertSame(f, f.fork());
276 <                myself.interrupt();
278 <                assertTrue(myself.isInterrupted());
276 >                currentThread.interrupt();
277                  assertNull(f.join());
278                  Thread.interrupted();
279                  assertEquals(21, f.result);
# Line 284 | Line 282 | public class ForkJoinPool8Test extends J
282                  f = new FibAction(8);
283                  f.cancel(true);
284                  assertSame(f, f.fork());
285 <                myself.interrupt();
288 <                assertTrue(myself.isInterrupted());
285 >                currentThread.interrupt();
286                  try {
287                      f.join();
288                      shouldThrow();
# Line 297 | Line 294 | public class ForkJoinPool8Test extends J
294                  f = new FibAction(8);
295                  f.completeExceptionally(new FJException());
296                  assertSame(f, f.fork());
297 <                myself.interrupt();
301 <                assertTrue(myself.isInterrupted());
297 >                currentThread.interrupt();
298                  try {
299                      f.join();
300                      shouldThrow();
# Line 310 | Line 306 | public class ForkJoinPool8Test extends J
306                  // test quietlyJoin()
307                  f = new FibAction(8);
308                  assertSame(f, f.fork());
309 <                myself.interrupt();
314 <                assertTrue(myself.isInterrupted());
309 >                currentThread.interrupt();
310                  f.quietlyJoin();
311                  Thread.interrupted();
312                  assertEquals(21, f.result);
# Line 320 | Line 315 | public class ForkJoinPool8Test extends J
315                  f = new FibAction(8);
316                  f.cancel(true);
317                  assertSame(f, f.fork());
318 <                myself.interrupt();
324 <                assertTrue(myself.isInterrupted());
318 >                currentThread.interrupt();
319                  f.quietlyJoin();
320                  Thread.interrupted();
321                  checkCancelled(f);
# Line 329 | Line 323 | public class ForkJoinPool8Test extends J
323                  f = new FibAction(8);
324                  f.completeExceptionally(new FJException());
325                  assertSame(f, f.fork());
326 <                myself.interrupt();
333 <                assertTrue(myself.isInterrupted());
326 >                currentThread.interrupt();
327                  f.quietlyJoin();
328                  Thread.interrupted();
329                  checkCompletedAbnormally(f, f.getException());
# Line 479 | Line 472 | public class ForkJoinPool8Test extends J
472                  FailingFibAction f = new FailingFibAction(8);
473                  assertSame(f, f.fork());
474                  try {
475 <                    f.get(5L, TimeUnit.SECONDS);
475 >                    f.get(5L, SECONDS);
476                      shouldThrow();
477                  } catch (ExecutionException success) {
478                      Throwable cause = success.getCause();
# Line 912 | Line 905 | public class ForkJoinPool8Test extends J
905          }
906      }
907  
908 <    // Version of CCF with forced failure in left completions
908 >    /** Version of CCF with forced failure in left completions. */
909      abstract static class FailingCCF extends CountedCompleter {
910          int number;
911          int rnumber;
# Line 1462 | Line 1455 | public class ForkJoinPool8Test extends J
1455      }
1456  
1457      /**
1458 <     * invokeAll(collection)  throws exception if any task does
1458 >     * invokeAll(collection) throws exception if any task does
1459       */
1460      public void testAbnormalInvokeAllCollectionCC() {
1461          ForkJoinTask a = new CheckedRecursiveAction() {
# Line 1484 | Line 1477 | public class ForkJoinPool8Test extends J
1477          checkInvoke(a);
1478      }
1479  
1480 +    /**
1481 +     * awaitQuiescence by a worker is equivalent in effect to
1482 +     * ForkJoinTask.helpQuiesce()
1483 +     */
1484 +    public void testAwaitQuiescence1() throws Exception {
1485 +        final ForkJoinPool p = new ForkJoinPool();
1486 +        try (PoolCleaner cleaner = cleaner(p)) {
1487 +            final long startTime = System.nanoTime();
1488 +            assertTrue(p.isQuiescent());
1489 +            ForkJoinTask a = new CheckedRecursiveAction() {
1490 +                protected void realCompute() {
1491 +                    FibAction f = new FibAction(8);
1492 +                    assertSame(f, f.fork());
1493 +                    assertSame(p, ForkJoinTask.getPool());
1494 +                    boolean quiescent = p.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS);
1495 +                    assertTrue(quiescent);
1496 +                    assertFalse(p.isQuiescent());
1497 +                    while (!f.isDone()) {
1498 +                        assertFalse(p.getAsyncMode());
1499 +                        assertFalse(p.isShutdown());
1500 +                        assertFalse(p.isTerminating());
1501 +                        assertFalse(p.isTerminated());
1502 +                        Thread.yield();
1503 +                    }
1504 +                    assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1505 +                    assertFalse(p.isQuiescent());
1506 +                    assertEquals(0, ForkJoinTask.getQueuedTaskCount());
1507 +                    assertEquals(21, f.result);
1508 +                }};
1509 +            p.execute(a);
1510 +            while (!a.isDone() || !p.isQuiescent()) {
1511 +                assertFalse(p.getAsyncMode());
1512 +                assertFalse(p.isShutdown());
1513 +                assertFalse(p.isTerminating());
1514 +                assertFalse(p.isTerminated());
1515 +                Thread.yield();
1516 +            }
1517 +            assertEquals(0, p.getQueuedTaskCount());
1518 +            assertFalse(p.getAsyncMode());
1519 +            assertEquals(0, p.getQueuedSubmissionCount());
1520 +            assertFalse(p.hasQueuedSubmissions());
1521 +            while (p.getActiveThreadCount() != 0
1522 +                   && millisElapsedSince(startTime) < LONG_DELAY_MS)
1523 +                Thread.yield();
1524 +            assertFalse(p.isShutdown());
1525 +            assertFalse(p.isTerminating());
1526 +            assertFalse(p.isTerminated());
1527 +            assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1528 +        }
1529 +    }
1530 +
1531 +    /**
1532 +     * awaitQuiescence returns when pool isQuiescent() or the indicated
1533 +     * timeout elapsed
1534 +     */
1535 +    public void testAwaitQuiescence2() throws Exception {
1536 +        /**
1537 +         * """It is possible to disable or limit the use of threads in the
1538 +         * common pool by setting the parallelism property to zero. However
1539 +         * doing so may cause unjoined tasks to never be executed."""
1540 +         */
1541 +        if ("0".equals(System.getProperty(
1542 +             "java.util.concurrent.ForkJoinPool.common.parallelism")))
1543 +            return;
1544 +        final ForkJoinPool p = new ForkJoinPool();
1545 +        try (PoolCleaner cleaner = cleaner(p)) {
1546 +            assertTrue(p.isQuiescent());
1547 +            final long startTime = System.nanoTime();
1548 +            ForkJoinTask a = new CheckedRecursiveAction() {
1549 +                protected void realCompute() {
1550 +                    FibAction f = new FibAction(8);
1551 +                    assertSame(f, f.fork());
1552 +                    while (!f.isDone()
1553 +                           && millisElapsedSince(startTime) < LONG_DELAY_MS) {
1554 +                        assertFalse(p.getAsyncMode());
1555 +                        assertFalse(p.isShutdown());
1556 +                        assertFalse(p.isTerminating());
1557 +                        assertFalse(p.isTerminated());
1558 +                        Thread.yield();
1559 +                    }
1560 +                    assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1561 +                    assertEquals(0, ForkJoinTask.getQueuedTaskCount());
1562 +                    assertEquals(21, f.result);
1563 +                }};
1564 +            p.execute(a);
1565 +            assertTrue(p.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS));
1566 +            assertTrue(p.isQuiescent());
1567 +            assertTrue(a.isDone());
1568 +            assertEquals(0, p.getQueuedTaskCount());
1569 +            assertFalse(p.getAsyncMode());
1570 +            assertEquals(0, p.getQueuedSubmissionCount());
1571 +            assertFalse(p.hasQueuedSubmissions());
1572 +            while (p.getActiveThreadCount() != 0
1573 +                   && millisElapsedSince(startTime) < LONG_DELAY_MS)
1574 +                Thread.yield();
1575 +            assertFalse(p.isShutdown());
1576 +            assertFalse(p.isTerminating());
1577 +            assertFalse(p.isTerminated());
1578 +            assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1579 +        }
1580 +    }
1581 +
1582   }

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines