| 14 |
|
import java.util.List; |
| 15 |
|
import java.util.concurrent.ArrayBlockingQueue; |
| 16 |
|
import java.util.concurrent.BlockingQueue; |
| 17 |
– |
import java.util.concurrent.CancellationException; |
| 17 |
|
import java.util.concurrent.Callable; |
| 18 |
+ |
import java.util.concurrent.CancellationException; |
| 19 |
|
import java.util.concurrent.CountDownLatch; |
| 20 |
|
import java.util.concurrent.ExecutionException; |
| 21 |
|
import java.util.concurrent.Executors; |
| 29 |
|
import java.util.concurrent.ThreadFactory; |
| 30 |
|
import java.util.concurrent.ThreadPoolExecutor; |
| 31 |
|
import java.util.concurrent.TimeUnit; |
| 32 |
+ |
import java.util.concurrent.atomic.AtomicInteger; |
| 33 |
|
|
| 34 |
|
import junit.framework.Test; |
| 35 |
|
import junit.framework.TestSuite; |
| 132 |
|
*/ |
| 133 |
|
public void testPrestartCoreThread() { |
| 134 |
|
final ThreadPoolExecutor p = |
| 135 |
< |
new ThreadPoolExecutor(2, 2, |
| 135 |
> |
new ThreadPoolExecutor(2, 6, |
| 136 |
|
LONG_DELAY_MS, MILLISECONDS, |
| 137 |
|
new ArrayBlockingQueue<Runnable>(10)); |
| 138 |
< |
assertEquals(0, p.getPoolSize()); |
| 139 |
< |
assertTrue(p.prestartCoreThread()); |
| 140 |
< |
assertEquals(1, p.getPoolSize()); |
| 141 |
< |
assertTrue(p.prestartCoreThread()); |
| 142 |
< |
assertEquals(2, p.getPoolSize()); |
| 143 |
< |
assertFalse(p.prestartCoreThread()); |
| 144 |
< |
assertEquals(2, p.getPoolSize()); |
| 145 |
< |
joinPool(p); |
| 138 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
| 139 |
> |
assertEquals(0, p.getPoolSize()); |
| 140 |
> |
assertTrue(p.prestartCoreThread()); |
| 141 |
> |
assertEquals(1, p.getPoolSize()); |
| 142 |
> |
assertTrue(p.prestartCoreThread()); |
| 143 |
> |
assertEquals(2, p.getPoolSize()); |
| 144 |
> |
assertFalse(p.prestartCoreThread()); |
| 145 |
> |
assertEquals(2, p.getPoolSize()); |
| 146 |
> |
p.setCorePoolSize(4); |
| 147 |
> |
assertTrue(p.prestartCoreThread()); |
| 148 |
> |
assertEquals(3, p.getPoolSize()); |
| 149 |
> |
assertTrue(p.prestartCoreThread()); |
| 150 |
> |
assertEquals(4, p.getPoolSize()); |
| 151 |
> |
assertFalse(p.prestartCoreThread()); |
| 152 |
> |
assertEquals(4, p.getPoolSize()); |
| 153 |
> |
} |
| 154 |
|
} |
| 155 |
|
|
| 156 |
|
/** |
| 633 |
|
} |
| 634 |
|
|
| 635 |
|
/** |
| 636 |
< |
* shutdownNow returns a list containing tasks that were not run |
| 636 |
> |
* shutdownNow returns a list containing tasks that were not run, |
| 637 |
> |
* and those tasks are drained from the queue |
| 638 |
|
*/ |
| 639 |
< |
public void testShutdownNow() { |
| 639 |
> |
public void testShutdownNow() throws InterruptedException { |
| 640 |
> |
final int poolSize = 2; |
| 641 |
> |
final int count = 5; |
| 642 |
> |
final AtomicInteger ran = new AtomicInteger(0); |
| 643 |
|
final ThreadPoolExecutor p = |
| 644 |
< |
new ThreadPoolExecutor(1, 1, |
| 644 |
> |
new ThreadPoolExecutor(poolSize, poolSize, |
| 645 |
|
LONG_DELAY_MS, MILLISECONDS, |
| 646 |
|
new ArrayBlockingQueue<Runnable>(10)); |
| 647 |
< |
List l; |
| 648 |
< |
try { |
| 649 |
< |
for (int i = 0; i < 5; i++) |
| 637 |
< |
p.execute(new MediumPossiblyInterruptedRunnable()); |
| 638 |
< |
} |
| 639 |
< |
finally { |
| 647 |
> |
CountDownLatch threadsStarted = new CountDownLatch(poolSize); |
| 648 |
> |
Runnable waiter = new CheckedRunnable() { public void realRun() { |
| 649 |
> |
threadsStarted.countDown(); |
| 650 |
|
try { |
| 651 |
< |
l = p.shutdownNow(); |
| 652 |
< |
} catch (SecurityException ok) { return; } |
| 651 |
> |
MILLISECONDS.sleep(2 * LONG_DELAY_MS); |
| 652 |
> |
} catch (InterruptedException success) {} |
| 653 |
> |
ran.getAndIncrement(); |
| 654 |
> |
}}; |
| 655 |
> |
for (int i = 0; i < count; i++) |
| 656 |
> |
p.execute(waiter); |
| 657 |
> |
assertTrue(threadsStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
| 658 |
> |
assertEquals(poolSize, p.getActiveCount()); |
| 659 |
> |
assertEquals(0, p.getCompletedTaskCount()); |
| 660 |
> |
final List<Runnable> queuedTasks; |
| 661 |
> |
try { |
| 662 |
> |
queuedTasks = p.shutdownNow(); |
| 663 |
> |
} catch (SecurityException ok) { |
| 664 |
> |
return; // Allowed in case test doesn't have privs |
| 665 |
|
} |
| 666 |
|
assertTrue(p.isShutdown()); |
| 667 |
< |
assertTrue(l.size() <= 4); |
| 667 |
> |
assertTrue(p.getQueue().isEmpty()); |
| 668 |
> |
assertEquals(count - poolSize, queuedTasks.size()); |
| 669 |
> |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
| 670 |
> |
assertTrue(p.isTerminated()); |
| 671 |
> |
assertEquals(poolSize, ran.get()); |
| 672 |
> |
assertEquals(poolSize, p.getCompletedTaskCount()); |
| 673 |
|
} |
| 674 |
|
|
| 675 |
|
// Exception Tests |
| 1902 |
|
l.add(new StringTask()); |
| 1903 |
|
l.add(new StringTask()); |
| 1904 |
|
List<Future<String>> futures = |
| 1905 |
< |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
| 1905 |
> |
e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS); |
| 1906 |
|
assertEquals(2, futures.size()); |
| 1907 |
|
for (Future<String> future : futures) |
| 1908 |
|
assertSame(TEST_STRING, future.get()); |
| 1922 |
|
try { |
| 1923 |
|
for (long timeout = timeoutMillis();;) { |
| 1924 |
|
List<Callable<String>> tasks = new ArrayList<>(); |
| 1925 |
< |
tasks.add(new StringTask()); |
| 1925 |
> |
tasks.add(new StringTask("0")); |
| 1926 |
|
tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING)); |
| 1927 |
< |
tasks.add(new StringTask()); |
| 1927 |
> |
tasks.add(new StringTask("2")); |
| 1928 |
|
long startTime = System.nanoTime(); |
| 1929 |
|
List<Future<String>> futures = |
| 1930 |
|
e.invokeAll(tasks, timeout, MILLISECONDS); |
| 1934 |
|
assertTrue(future.isDone()); |
| 1935 |
|
assertTrue(futures.get(1).isCancelled()); |
| 1936 |
|
try { |
| 1937 |
< |
assertEquals(TEST_STRING, futures.get(0).get()); |
| 1938 |
< |
assertEquals(TEST_STRING, futures.get(2).get()); |
| 1937 |
> |
assertEquals("0", futures.get(0).get()); |
| 1938 |
> |
assertEquals("2", futures.get(2).get()); |
| 1939 |
|
break; |
| 1940 |
|
} catch (CancellationException retryWithLongerTimeout) { |
| 1941 |
|
timeout *= 2; |
| 2070 |
|
} |
| 2071 |
|
} |
| 2072 |
|
|
| 2073 |
+ |
/** |
| 2074 |
+ |
* get(cancelled task) throws CancellationException |
| 2075 |
+ |
*/ |
| 2076 |
+ |
public void testGet_cancelled() throws Exception { |
| 2077 |
+ |
final ExecutorService e = |
| 2078 |
+ |
new ThreadPoolExecutor(1, 1, |
| 2079 |
+ |
LONG_DELAY_MS, MILLISECONDS, |
| 2080 |
+ |
new LinkedBlockingQueue<Runnable>()); |
| 2081 |
+ |
try { |
| 2082 |
+ |
final CountDownLatch blockerStarted = new CountDownLatch(1); |
| 2083 |
+ |
final CountDownLatch done = new CountDownLatch(1); |
| 2084 |
+ |
final List<Future<?>> futures = new ArrayList<>(); |
| 2085 |
+ |
for (int i = 0; i < 2; i++) { |
| 2086 |
+ |
Runnable r = new CheckedRunnable() { public void realRun() |
| 2087 |
+ |
throws Throwable { |
| 2088 |
+ |
blockerStarted.countDown(); |
| 2089 |
+ |
assertTrue(done.await(2 * LONG_DELAY_MS, MILLISECONDS)); |
| 2090 |
+ |
}}; |
| 2091 |
+ |
futures.add(e.submit(r)); |
| 2092 |
+ |
} |
| 2093 |
+ |
assertTrue(blockerStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
| 2094 |
+ |
for (Future<?> future : futures) future.cancel(false); |
| 2095 |
+ |
for (Future<?> future : futures) { |
| 2096 |
+ |
try { |
| 2097 |
+ |
future.get(); |
| 2098 |
+ |
shouldThrow(); |
| 2099 |
+ |
} catch (CancellationException success) {} |
| 2100 |
+ |
try { |
| 2101 |
+ |
future.get(LONG_DELAY_MS, MILLISECONDS); |
| 2102 |
+ |
shouldThrow(); |
| 2103 |
+ |
} catch (CancellationException success) {} |
| 2104 |
+ |
assertTrue(future.isCancelled()); |
| 2105 |
+ |
assertTrue(future.isDone()); |
| 2106 |
+ |
} |
| 2107 |
+ |
done.countDown(); |
| 2108 |
+ |
} finally { |
| 2109 |
+ |
joinPool(e); |
| 2110 |
+ |
} |
| 2111 |
+ |
} |
| 2112 |
+ |
|
| 2113 |
|
} |
