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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/licenses/publicdomain |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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*/ |
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|
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import junit.framework.*; |
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import java.util.*; |
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import java.util.concurrent.*; |
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import java.util.concurrent.locks.*; |
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import java.util.concurrent.atomic.*; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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|
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import java.util.concurrent.BrokenBarrierException; |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.CyclicBarrier; |
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import java.util.concurrent.TimeoutException; |
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import java.util.concurrent.atomic.AtomicBoolean; |
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|
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import junit.framework.Test; |
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import junit.framework.TestSuite; |
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|
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public class CyclicBarrierTest extends JSR166TestCase { |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run (suite()); |
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junit.textui.TestRunner.run(suite()); |
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} |
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public static Test suite() { |
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return new TestSuite(CyclicBarrierTest.class); |
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} |
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|
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/** |
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* Spin-waits till the number of waiters == numberOfWaiters. |
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*/ |
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void awaitNumberWaiting(CyclicBarrier barrier, int numberOfWaiters) { |
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long startTime = System.nanoTime(); |
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while (barrier.getNumberWaiting() != numberOfWaiters) { |
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if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
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fail("timed out"); |
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Thread.yield(); |
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} |
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} |
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|
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/** |
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* Creating with negative parties throws IAE |
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*/ |
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public void testConstructor1() { |
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try { |
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new CyclicBarrier(-1, (Runnable)null); |
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shouldThrow(); |
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} catch (IllegalArgumentException e) {} |
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} catch (IllegalArgumentException success) {} |
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} |
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|
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/** |
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try { |
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new CyclicBarrier(-1); |
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shouldThrow(); |
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} catch (IllegalArgumentException e) {} |
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} catch (IllegalArgumentException success) {} |
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} |
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|
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/** |
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/** |
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* A 1-party barrier triggers after single await |
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*/ |
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public void testSingleParty() { |
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try { |
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CyclicBarrier b = new CyclicBarrier(1); |
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assertEquals(1, b.getParties()); |
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assertEquals(0, b.getNumberWaiting()); |
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b.await(); |
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b.await(); |
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assertEquals(0, b.getNumberWaiting()); |
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} |
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catch (Exception e) { |
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unexpectedException(); |
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} |
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public void testSingleParty() throws Exception { |
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CyclicBarrier b = new CyclicBarrier(1); |
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assertEquals(1, b.getParties()); |
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assertEquals(0, b.getNumberWaiting()); |
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b.await(); |
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b.await(); |
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assertEquals(0, b.getNumberWaiting()); |
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} |
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|
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/** |
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* The supplied barrier action is run at barrier |
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*/ |
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public void testBarrierAction() { |
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try { |
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countAction = 0; |
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CyclicBarrier b = new CyclicBarrier(1, new MyAction()); |
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assertEquals(1, b.getParties()); |
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assertEquals(0, b.getNumberWaiting()); |
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b.await(); |
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b.await(); |
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assertEquals(0, b.getNumberWaiting()); |
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assertEquals(countAction, 2); |
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} |
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catch (Exception e) { |
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unexpectedException(); |
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} |
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public void testBarrierAction() throws Exception { |
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countAction = 0; |
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CyclicBarrier b = new CyclicBarrier(1, new MyAction()); |
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assertEquals(1, b.getParties()); |
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assertEquals(0, b.getNumberWaiting()); |
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b.await(); |
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b.await(); |
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assertEquals(0, b.getNumberWaiting()); |
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assertEquals(2, countAction); |
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} |
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|
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/** |
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* A 2-party/thread barrier triggers after both threads invoke await |
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*/ |
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public void testTwoParties() { |
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public void testTwoParties() throws Exception { |
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final CyclicBarrier b = new CyclicBarrier(2); |
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Thread t = new Thread(new Runnable() { |
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public void run() { |
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try { |
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b.await(); |
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b.await(); |
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b.await(); |
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b.await(); |
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} catch (Exception e) { |
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threadUnexpectedException(); |
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}}}); |
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|
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try { |
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t.start(); |
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b.await(); |
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b.await(); |
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b.await(); |
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b.await(); |
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t.join(); |
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} catch (Exception e) { |
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unexpectedException(); |
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} |
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Thread t = newStartedThread(new CheckedRunnable() { |
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public void realRun() throws Exception { |
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b.await(); |
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b.await(); |
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b.await(); |
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b.await(); |
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}}); |
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|
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b.await(); |
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b.await(); |
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b.await(); |
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b.await(); |
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awaitTermination(t); |
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} |
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|
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|
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/** |
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* An interruption in one party causes others waiting in await to |
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* throw BrokenBarrierException |
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*/ |
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public void testAwait1_Interrupted_BrokenBarrier() { |
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final CyclicBarrier c = new CyclicBarrier(3); |
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Thread t1 = new Thread(new Runnable() { |
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public void run() { |
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try { |
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c.await(); |
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threadShouldThrow(); |
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} catch (InterruptedException success) {} |
132 |
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catch (Exception b) { |
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threadUnexpectedException(); |
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} |
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} |
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}); |
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Thread t2 = new Thread(new Runnable() { |
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public void run() { |
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try { |
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c.await(); |
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threadShouldThrow(); |
142 |
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} catch (BrokenBarrierException success) { |
143 |
< |
} catch (Exception i) { |
146 |
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threadUnexpectedException(); |
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} |
148 |
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} |
149 |
< |
}); |
150 |
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try { |
151 |
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t1.start(); |
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t2.start(); |
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< |
Thread.sleep(SHORT_DELAY_MS); |
154 |
< |
t1.interrupt(); |
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< |
t1.join(); |
156 |
< |
t2.join(); |
157 |
< |
} catch (InterruptedException e) { |
158 |
< |
unexpectedException(); |
159 |
< |
} |
126 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(2); |
127 |
> |
Thread t1 = new ThreadShouldThrow(InterruptedException.class) { |
128 |
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public void realRun() throws Exception { |
129 |
> |
pleaseInterrupt.countDown(); |
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c.await(); |
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> |
}}; |
132 |
> |
Thread t2 = new ThreadShouldThrow(BrokenBarrierException.class) { |
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public void realRun() throws Exception { |
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pleaseInterrupt.countDown(); |
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c.await(); |
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> |
}}; |
137 |
> |
|
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t1.start(); |
139 |
> |
t2.start(); |
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> |
await(pleaseInterrupt); |
141 |
> |
t1.interrupt(); |
142 |
> |
awaitTermination(t1); |
143 |
> |
awaitTermination(t2); |
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} |
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|
146 |
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/** |
147 |
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* An interruption in one party causes others waiting in timed await to |
148 |
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* throw BrokenBarrierException |
149 |
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*/ |
150 |
< |
public void testAwait2_Interrupted_BrokenBarrier() { |
150 |
> |
public void testAwait2_Interrupted_BrokenBarrier() throws Exception { |
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|
final CyclicBarrier c = new CyclicBarrier(3); |
152 |
< |
Thread t1 = new Thread(new Runnable() { |
153 |
< |
public void run() { |
154 |
< |
try { |
155 |
< |
c.await(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
156 |
< |
threadShouldThrow(); |
157 |
< |
} catch (InterruptedException success) { |
158 |
< |
} catch (Exception b) { |
159 |
< |
threadUnexpectedException(); |
160 |
< |
} |
161 |
< |
} |
162 |
< |
}); |
163 |
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Thread t2 = new Thread(new Runnable() { |
164 |
< |
public void run() { |
165 |
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try { |
166 |
< |
c.await(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
167 |
< |
threadShouldThrow(); |
168 |
< |
} catch (BrokenBarrierException success) { |
169 |
< |
} catch (Exception i) { |
186 |
< |
threadUnexpectedException(); |
187 |
< |
} |
188 |
< |
} |
189 |
< |
}); |
190 |
< |
try { |
191 |
< |
t1.start(); |
192 |
< |
t2.start(); |
193 |
< |
Thread.sleep(SHORT_DELAY_MS); |
194 |
< |
t1.interrupt(); |
195 |
< |
t1.join(); |
196 |
< |
t2.join(); |
197 |
< |
} catch (InterruptedException e) { |
198 |
< |
unexpectedException(); |
199 |
< |
} |
152 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(2); |
153 |
> |
Thread t1 = new ThreadShouldThrow(InterruptedException.class) { |
154 |
> |
public void realRun() throws Exception { |
155 |
> |
pleaseInterrupt.countDown(); |
156 |
> |
c.await(LONG_DELAY_MS, MILLISECONDS); |
157 |
> |
}}; |
158 |
> |
Thread t2 = new ThreadShouldThrow(BrokenBarrierException.class) { |
159 |
> |
public void realRun() throws Exception { |
160 |
> |
pleaseInterrupt.countDown(); |
161 |
> |
c.await(LONG_DELAY_MS, MILLISECONDS); |
162 |
> |
}}; |
163 |
> |
|
164 |
> |
t1.start(); |
165 |
> |
t2.start(); |
166 |
> |
await(pleaseInterrupt); |
167 |
> |
t1.interrupt(); |
168 |
> |
awaitTermination(t1); |
169 |
> |
awaitTermination(t2); |
170 |
|
} |
171 |
|
|
172 |
|
/** |
173 |
|
* A timeout in timed await throws TimeoutException |
174 |
|
*/ |
175 |
< |
public void testAwait3_TimeOutException() { |
175 |
> |
public void testAwait3_TimeoutException() throws InterruptedException { |
176 |
|
final CyclicBarrier c = new CyclicBarrier(2); |
177 |
< |
Thread t = new Thread(new Runnable() { |
178 |
< |
public void run() { |
179 |
< |
try { |
180 |
< |
c.await(SHORT_DELAY_MS, TimeUnit.MILLISECONDS); |
181 |
< |
threadShouldThrow(); |
182 |
< |
} catch (TimeoutException success) { |
183 |
< |
} catch (Exception b) { |
184 |
< |
threadUnexpectedException(); |
177 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
178 |
> |
public void realRun() throws Exception { |
179 |
> |
long startTime = System.nanoTime(); |
180 |
> |
try { |
181 |
> |
c.await(timeoutMillis(), MILLISECONDS); |
182 |
> |
shouldThrow(); |
183 |
> |
} catch (TimeoutException success) {} |
184 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
185 |
> |
}}); |
186 |
|
|
187 |
< |
} |
217 |
< |
} |
218 |
< |
}); |
219 |
< |
try { |
220 |
< |
t.start(); |
221 |
< |
t.join(); |
222 |
< |
} catch (InterruptedException e) { |
223 |
< |
unexpectedException(); |
224 |
< |
} |
187 |
> |
awaitTermination(t); |
188 |
|
} |
189 |
|
|
190 |
|
/** |
191 |
|
* A timeout in one party causes others waiting in timed await to |
192 |
|
* throw BrokenBarrierException |
193 |
|
*/ |
194 |
< |
public void testAwait4_Timeout_BrokenBarrier() { |
194 |
> |
public void testAwait4_Timeout_BrokenBarrier() throws InterruptedException { |
195 |
|
final CyclicBarrier c = new CyclicBarrier(3); |
196 |
< |
Thread t1 = new Thread(new Runnable() { |
197 |
< |
public void run() { |
198 |
< |
try { |
199 |
< |
c.await(SHORT_DELAY_MS, TimeUnit.MILLISECONDS); |
200 |
< |
threadShouldThrow(); |
201 |
< |
} catch (TimeoutException success) { |
202 |
< |
} catch (Exception b) { |
203 |
< |
threadUnexpectedException(); |
204 |
< |
} |
205 |
< |
} |
206 |
< |
}); |
207 |
< |
Thread t2 = new Thread(new Runnable() { |
208 |
< |
public void run() { |
209 |
< |
try { |
210 |
< |
c.await(MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
211 |
< |
threadShouldThrow(); |
212 |
< |
} catch (BrokenBarrierException success) { |
213 |
< |
} catch (Exception i) { |
214 |
< |
threadUnexpectedException(); |
215 |
< |
} |
253 |
< |
} |
254 |
< |
}); |
255 |
< |
try { |
256 |
< |
t1.start(); |
257 |
< |
t2.start(); |
258 |
< |
t1.join(); |
259 |
< |
t2.join(); |
260 |
< |
} catch (InterruptedException e) { |
261 |
< |
unexpectedException(); |
262 |
< |
} |
196 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
197 |
> |
public void realRun() throws Exception { |
198 |
> |
try { |
199 |
> |
c.await(LONG_DELAY_MS, MILLISECONDS); |
200 |
> |
shouldThrow(); |
201 |
> |
} catch (BrokenBarrierException success) {} |
202 |
> |
}}); |
203 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
204 |
> |
public void realRun() throws Exception { |
205 |
> |
awaitNumberWaiting(c, 1); |
206 |
> |
long startTime = System.nanoTime(); |
207 |
> |
try { |
208 |
> |
c.await(timeoutMillis(), MILLISECONDS); |
209 |
> |
shouldThrow(); |
210 |
> |
} catch (TimeoutException success) {} |
211 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
212 |
> |
}}); |
213 |
> |
|
214 |
> |
awaitTermination(t1); |
215 |
> |
awaitTermination(t2); |
216 |
|
} |
217 |
|
|
218 |
|
/** |
219 |
|
* A timeout in one party causes others waiting in await to |
220 |
|
* throw BrokenBarrierException |
221 |
|
*/ |
222 |
< |
public void testAwait5_Timeout_BrokenBarrier() { |
222 |
> |
public void testAwait5_Timeout_BrokenBarrier() throws InterruptedException { |
223 |
|
final CyclicBarrier c = new CyclicBarrier(3); |
224 |
< |
Thread t1 = new Thread(new Runnable() { |
225 |
< |
public void run() { |
226 |
< |
try { |
227 |
< |
c.await(SHORT_DELAY_MS, TimeUnit.MILLISECONDS); |
228 |
< |
threadShouldThrow(); |
229 |
< |
} catch (TimeoutException success) { |
230 |
< |
} catch (Exception b) { |
231 |
< |
threadUnexpectedException(); |
232 |
< |
} |
233 |
< |
} |
234 |
< |
}); |
235 |
< |
Thread t2 = new Thread(new Runnable() { |
236 |
< |
public void run() { |
237 |
< |
try { |
238 |
< |
c.await(); |
239 |
< |
threadShouldThrow(); |
240 |
< |
} catch (BrokenBarrierException success) { |
241 |
< |
} catch (Exception i) { |
242 |
< |
threadUnexpectedException(); |
243 |
< |
} |
291 |
< |
} |
292 |
< |
}); |
293 |
< |
try { |
294 |
< |
t1.start(); |
295 |
< |
t2.start(); |
296 |
< |
t1.join(); |
297 |
< |
t2.join(); |
298 |
< |
} catch (InterruptedException e) { |
299 |
< |
unexpectedException(); |
300 |
< |
} |
224 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
225 |
> |
public void realRun() throws Exception { |
226 |
> |
try { |
227 |
> |
c.await(); |
228 |
> |
shouldThrow(); |
229 |
> |
} catch (BrokenBarrierException success) {} |
230 |
> |
}}); |
231 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
232 |
> |
public void realRun() throws Exception { |
233 |
> |
awaitNumberWaiting(c, 1); |
234 |
> |
long startTime = System.nanoTime(); |
235 |
> |
try { |
236 |
> |
c.await(timeoutMillis(), MILLISECONDS); |
237 |
> |
shouldThrow(); |
238 |
> |
} catch (TimeoutException success) {} |
239 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
240 |
> |
}}); |
241 |
> |
|
242 |
> |
awaitTermination(t1); |
243 |
> |
awaitTermination(t2); |
244 |
|
} |
245 |
|
|
246 |
|
/** |
247 |
|
* A reset of an active barrier causes waiting threads to throw |
248 |
|
* BrokenBarrierException |
249 |
|
*/ |
250 |
< |
public void testReset_BrokenBarrier() { |
250 |
> |
public void testReset_BrokenBarrier() throws InterruptedException { |
251 |
|
final CyclicBarrier c = new CyclicBarrier(3); |
252 |
< |
Thread t1 = new Thread(new Runnable() { |
253 |
< |
public void run() { |
254 |
< |
try { |
255 |
< |
c.await(); |
256 |
< |
threadShouldThrow(); |
257 |
< |
} catch (BrokenBarrierException success) {} |
258 |
< |
catch (Exception b) { |
259 |
< |
threadUnexpectedException(); |
260 |
< |
} |
261 |
< |
} |
262 |
< |
}); |
263 |
< |
Thread t2 = new Thread(new Runnable() { |
264 |
< |
public void run() { |
265 |
< |
try { |
266 |
< |
c.await(); |
267 |
< |
threadShouldThrow(); |
268 |
< |
} catch (BrokenBarrierException success) { |
269 |
< |
} catch (Exception i) { |
270 |
< |
threadUnexpectedException(); |
271 |
< |
} |
329 |
< |
} |
330 |
< |
}); |
331 |
< |
try { |
332 |
< |
t1.start(); |
333 |
< |
t2.start(); |
334 |
< |
Thread.sleep(SHORT_DELAY_MS); |
335 |
< |
c.reset(); |
336 |
< |
t1.join(); |
337 |
< |
t2.join(); |
338 |
< |
} catch (InterruptedException e) { |
339 |
< |
unexpectedException(); |
340 |
< |
} |
252 |
> |
final CountDownLatch pleaseReset = new CountDownLatch(2); |
253 |
> |
Thread t1 = new ThreadShouldThrow(BrokenBarrierException.class) { |
254 |
> |
public void realRun() throws Exception { |
255 |
> |
pleaseReset.countDown(); |
256 |
> |
c.await(); |
257 |
> |
}}; |
258 |
> |
Thread t2 = new ThreadShouldThrow(BrokenBarrierException.class) { |
259 |
> |
public void realRun() throws Exception { |
260 |
> |
pleaseReset.countDown(); |
261 |
> |
c.await(); |
262 |
> |
}}; |
263 |
> |
|
264 |
> |
t1.start(); |
265 |
> |
t2.start(); |
266 |
> |
await(pleaseReset); |
267 |
> |
|
268 |
> |
awaitNumberWaiting(c, 2); |
269 |
> |
c.reset(); |
270 |
> |
awaitTermination(t1); |
271 |
> |
awaitTermination(t2); |
272 |
|
} |
273 |
|
|
274 |
|
/** |
275 |
|
* A reset before threads enter barrier does not throw |
276 |
|
* BrokenBarrierException |
277 |
|
*/ |
278 |
< |
public void testReset_NoBrokenBarrier() { |
278 |
> |
public void testReset_NoBrokenBarrier() throws Exception { |
279 |
|
final CyclicBarrier c = new CyclicBarrier(3); |
280 |
< |
Thread t1 = new Thread(new Runnable() { |
281 |
< |
public void run() { |
282 |
< |
try { |
283 |
< |
c.await(); |
284 |
< |
} catch (Exception b) { |
285 |
< |
threadUnexpectedException(); |
286 |
< |
} |
287 |
< |
} |
288 |
< |
}); |
289 |
< |
Thread t2 = new Thread(new Runnable() { |
290 |
< |
public void run() { |
291 |
< |
try { |
292 |
< |
c.await(); |
293 |
< |
} catch (Exception i) { |
363 |
< |
threadUnexpectedException(); |
364 |
< |
} |
365 |
< |
} |
366 |
< |
}); |
367 |
< |
try { |
368 |
< |
c.reset(); |
369 |
< |
t1.start(); |
370 |
< |
t2.start(); |
371 |
< |
c.await(); |
372 |
< |
t1.join(); |
373 |
< |
t2.join(); |
374 |
< |
} catch (Exception e) { |
375 |
< |
unexpectedException(); |
376 |
< |
} |
280 |
> |
c.reset(); |
281 |
> |
|
282 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
283 |
> |
public void realRun() throws Exception { |
284 |
> |
c.await(); |
285 |
> |
}}); |
286 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
287 |
> |
public void realRun() throws Exception { |
288 |
> |
c.await(); |
289 |
> |
}}); |
290 |
> |
|
291 |
> |
c.await(); |
292 |
> |
awaitTermination(t1); |
293 |
> |
awaitTermination(t2); |
294 |
|
} |
295 |
|
|
296 |
|
/** |
297 |
|
* All threads block while a barrier is broken. |
298 |
|
*/ |
299 |
< |
public void testReset_Leakage() { |
300 |
< |
try { |
301 |
< |
final CyclicBarrier c = new CyclicBarrier(2); |
302 |
< |
final AtomicBoolean done = new AtomicBoolean(); |
303 |
< |
Thread t = new Thread() { |
304 |
< |
public void run() { |
305 |
< |
while (!done.get()) { |
306 |
< |
try { |
307 |
< |
while (c.isBroken()) |
308 |
< |
c.reset(); |
309 |
< |
|
310 |
< |
c.await(); |
394 |
< |
threadFail("await should not return"); |
395 |
< |
} |
396 |
< |
catch (BrokenBarrierException e) { |
397 |
< |
} |
398 |
< |
catch (InterruptedException ie) { |
399 |
< |
} |
400 |
< |
} |
299 |
> |
public void testReset_Leakage() throws InterruptedException { |
300 |
> |
final CyclicBarrier c = new CyclicBarrier(2); |
301 |
> |
final AtomicBoolean done = new AtomicBoolean(); |
302 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
303 |
> |
public void realRun() { |
304 |
> |
while (!done.get()) { |
305 |
> |
try { |
306 |
> |
while (c.isBroken()) |
307 |
> |
c.reset(); |
308 |
> |
|
309 |
> |
c.await(); |
310 |
> |
shouldThrow(); |
311 |
|
} |
312 |
< |
}; |
312 |
> |
catch (BrokenBarrierException ok) {} |
313 |
> |
catch (InterruptedException ok) {} |
314 |
> |
}}}); |
315 |
|
|
316 |
< |
t.start(); |
317 |
< |
for ( int i = 0; i < 4; i++) { |
406 |
< |
Thread.sleep(SHORT_DELAY_MS); |
407 |
< |
t.interrupt(); |
408 |
< |
} |
409 |
< |
done.set(true); |
316 |
> |
for (int i = 0; i < 4; i++) { |
317 |
> |
delay(timeoutMillis()); |
318 |
|
t.interrupt(); |
319 |
|
} |
320 |
< |
catch (Exception ex) { |
321 |
< |
unexpectedException(); |
322 |
< |
} |
320 |
> |
done.set(true); |
321 |
> |
t.interrupt(); |
322 |
> |
awaitTermination(t); |
323 |
|
} |
324 |
|
|
325 |
|
/** |
326 |
|
* Reset of a non-broken barrier does not break barrier |
327 |
|
*/ |
328 |
< |
public void testResetWithoutBreakage() { |
329 |
< |
try { |
328 |
> |
public void testResetWithoutBreakage() throws Exception { |
329 |
> |
final CyclicBarrier barrier = new CyclicBarrier(3); |
330 |
> |
for (int i = 0; i < 3; i++) { |
331 |
|
final CyclicBarrier start = new CyclicBarrier(3); |
332 |
< |
final CyclicBarrier barrier = new CyclicBarrier(3); |
333 |
< |
for (int i = 0; i < 3; i++) { |
334 |
< |
Thread t1 = new Thread(new Runnable() { |
335 |
< |
public void run() { |
336 |
< |
try { start.await(); } |
337 |
< |
catch (Exception ie) { |
338 |
< |
threadFail("start barrier"); |
339 |
< |
} |
340 |
< |
try { barrier.await(); } |
341 |
< |
catch (Throwable thrown) { |
342 |
< |
unexpectedException(); |
343 |
< |
}}}); |
344 |
< |
|
345 |
< |
Thread t2 = new Thread(new Runnable() { |
346 |
< |
public void run() { |
347 |
< |
try { start.await(); } |
348 |
< |
catch (Exception ie) { |
349 |
< |
threadFail("start barrier"); |
350 |
< |
} |
351 |
< |
try { barrier.await(); } |
352 |
< |
catch (Throwable thrown) { |
444 |
< |
unexpectedException(); |
445 |
< |
}}}); |
446 |
< |
|
447 |
< |
|
448 |
< |
t1.start(); |
449 |
< |
t2.start(); |
450 |
< |
try { start.await(); } |
451 |
< |
catch (Exception ie) { threadFail("start barrier"); } |
452 |
< |
barrier.await(); |
453 |
< |
t1.join(); |
454 |
< |
t2.join(); |
455 |
< |
assertFalse(barrier.isBroken()); |
456 |
< |
assertEquals(0, barrier.getNumberWaiting()); |
457 |
< |
if (i == 1) barrier.reset(); |
458 |
< |
assertFalse(barrier.isBroken()); |
459 |
< |
assertEquals(0, barrier.getNumberWaiting()); |
460 |
< |
} |
461 |
< |
} |
462 |
< |
catch (Exception ex) { |
463 |
< |
unexpectedException(); |
332 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
333 |
> |
public void realRun() throws Exception { |
334 |
> |
start.await(); |
335 |
> |
barrier.await(); |
336 |
> |
}}); |
337 |
> |
|
338 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
339 |
> |
public void realRun() throws Exception { |
340 |
> |
start.await(); |
341 |
> |
barrier.await(); |
342 |
> |
}}); |
343 |
> |
|
344 |
> |
start.await(); |
345 |
> |
barrier.await(); |
346 |
> |
awaitTermination(t1); |
347 |
> |
awaitTermination(t2); |
348 |
> |
assertFalse(barrier.isBroken()); |
349 |
> |
assertEquals(0, barrier.getNumberWaiting()); |
350 |
> |
if (i == 1) barrier.reset(); |
351 |
> |
assertFalse(barrier.isBroken()); |
352 |
> |
assertEquals(0, barrier.getNumberWaiting()); |
353 |
|
} |
354 |
|
} |
355 |
|
|
356 |
|
/** |
357 |
|
* Reset of a barrier after interruption reinitializes it. |
358 |
|
*/ |
359 |
< |
public void testResetAfterInterrupt() { |
360 |
< |
try { |
359 |
> |
public void testResetAfterInterrupt() throws Exception { |
360 |
> |
final CyclicBarrier barrier = new CyclicBarrier(3); |
361 |
> |
for (int i = 0; i < 2; i++) { |
362 |
|
final CyclicBarrier start = new CyclicBarrier(3); |
363 |
< |
final CyclicBarrier barrier = new CyclicBarrier(3); |
364 |
< |
for (int i = 0; i < 2; i++) { |
365 |
< |
Thread t1 = new Thread(new Runnable() { |
366 |
< |
public void run() { |
367 |
< |
try { start.await(); } |
368 |
< |
catch (Exception ie) { |
369 |
< |
threadFail("start barrier"); |
370 |
< |
} |
371 |
< |
try { barrier.await(); } |
372 |
< |
catch (InterruptedException ok) {} |
373 |
< |
catch (Throwable thrown) { |
374 |
< |
unexpectedException(); |
375 |
< |
}}}); |
376 |
< |
|
377 |
< |
Thread t2 = new Thread(new Runnable() { |
378 |
< |
public void run() { |
379 |
< |
try { start.await(); } |
380 |
< |
catch (Exception ie) { |
381 |
< |
threadFail("start barrier"); |
382 |
< |
} |
383 |
< |
try { barrier.await(); } |
384 |
< |
catch (BrokenBarrierException ok) {} |
385 |
< |
catch (Throwable thrown) { |
496 |
< |
unexpectedException(); |
497 |
< |
}}}); |
498 |
< |
|
499 |
< |
t1.start(); |
500 |
< |
t2.start(); |
501 |
< |
try { start.await(); } |
502 |
< |
catch (Exception ie) { threadFail("start barrier"); } |
503 |
< |
t1.interrupt(); |
504 |
< |
t1.join(); |
505 |
< |
t2.join(); |
506 |
< |
assertTrue(barrier.isBroken()); |
507 |
< |
assertEquals(0, barrier.getNumberWaiting()); |
508 |
< |
barrier.reset(); |
509 |
< |
assertFalse(barrier.isBroken()); |
510 |
< |
assertEquals(0, barrier.getNumberWaiting()); |
511 |
< |
} |
512 |
< |
} |
513 |
< |
catch (Exception ex) { |
514 |
< |
unexpectedException(); |
363 |
> |
Thread t1 = new ThreadShouldThrow(InterruptedException.class) { |
364 |
> |
public void realRun() throws Exception { |
365 |
> |
start.await(); |
366 |
> |
barrier.await(); |
367 |
> |
}}; |
368 |
> |
|
369 |
> |
Thread t2 = new ThreadShouldThrow(BrokenBarrierException.class) { |
370 |
> |
public void realRun() throws Exception { |
371 |
> |
start.await(); |
372 |
> |
barrier.await(); |
373 |
> |
}}; |
374 |
> |
|
375 |
> |
t1.start(); |
376 |
> |
t2.start(); |
377 |
> |
start.await(); |
378 |
> |
t1.interrupt(); |
379 |
> |
awaitTermination(t1); |
380 |
> |
awaitTermination(t2); |
381 |
> |
assertTrue(barrier.isBroken()); |
382 |
> |
assertEquals(0, barrier.getNumberWaiting()); |
383 |
> |
barrier.reset(); |
384 |
> |
assertFalse(barrier.isBroken()); |
385 |
> |
assertEquals(0, barrier.getNumberWaiting()); |
386 |
|
} |
387 |
|
} |
388 |
|
|
389 |
|
/** |
390 |
|
* Reset of a barrier after timeout reinitializes it. |
391 |
|
*/ |
392 |
< |
public void testResetAfterTimeout() { |
393 |
< |
try { |
394 |
< |
final CyclicBarrier start = new CyclicBarrier(3); |
395 |
< |
final CyclicBarrier barrier = new CyclicBarrier(3); |
396 |
< |
for (int i = 0; i < 2; i++) { |
397 |
< |
Thread t1 = new Thread(new Runnable() { |
398 |
< |
public void run() { |
399 |
< |
try { start.await(); } |
400 |
< |
catch (Exception ie) { |
401 |
< |
threadFail("start barrier"); |
402 |
< |
} |
403 |
< |
try { barrier.await(MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); } |
404 |
< |
catch (TimeoutException ok) {} |
405 |
< |
catch (Throwable thrown) { |
406 |
< |
unexpectedException(); |
407 |
< |
}}}); |
408 |
< |
|
409 |
< |
Thread t2 = new Thread(new Runnable() { |
410 |
< |
public void run() { |
411 |
< |
try { start.await(); } |
412 |
< |
catch (Exception ie) { |
413 |
< |
threadFail("start barrier"); |
414 |
< |
} |
415 |
< |
try { barrier.await(); } |
416 |
< |
catch (BrokenBarrierException ok) {} |
417 |
< |
catch (Throwable thrown) { |
418 |
< |
unexpectedException(); |
419 |
< |
}}}); |
420 |
< |
|
421 |
< |
t1.start(); |
551 |
< |
t2.start(); |
552 |
< |
try { start.await(); } |
553 |
< |
catch (Exception ie) { threadFail("start barrier"); } |
554 |
< |
t1.join(); |
555 |
< |
t2.join(); |
556 |
< |
assertTrue(barrier.isBroken()); |
557 |
< |
assertEquals(0, barrier.getNumberWaiting()); |
558 |
< |
barrier.reset(); |
559 |
< |
assertFalse(barrier.isBroken()); |
560 |
< |
assertEquals(0, barrier.getNumberWaiting()); |
561 |
< |
} |
562 |
< |
} |
563 |
< |
catch (Exception ex) { |
564 |
< |
unexpectedException(); |
392 |
> |
public void testResetAfterTimeout() throws Exception { |
393 |
> |
final CyclicBarrier barrier = new CyclicBarrier(3); |
394 |
> |
for (int i = 0; i < 2; i++) { |
395 |
> |
assertEquals(0, barrier.getNumberWaiting()); |
396 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
397 |
> |
public void realRun() throws Exception { |
398 |
> |
try { |
399 |
> |
barrier.await(); |
400 |
> |
shouldThrow(); |
401 |
> |
} catch (BrokenBarrierException success) {} |
402 |
> |
}}); |
403 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
404 |
> |
public void realRun() throws Exception { |
405 |
> |
awaitNumberWaiting(barrier, 1); |
406 |
> |
long startTime = System.nanoTime(); |
407 |
> |
try { |
408 |
> |
barrier.await(timeoutMillis(), MILLISECONDS); |
409 |
> |
shouldThrow(); |
410 |
> |
} catch (TimeoutException success) {} |
411 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
412 |
> |
}}); |
413 |
> |
|
414 |
> |
awaitTermination(t1); |
415 |
> |
awaitTermination(t2); |
416 |
> |
assertEquals(0, barrier.getNumberWaiting()); |
417 |
> |
assertTrue(barrier.isBroken()); |
418 |
> |
assertEquals(0, barrier.getNumberWaiting()); |
419 |
> |
barrier.reset(); |
420 |
> |
assertFalse(barrier.isBroken()); |
421 |
> |
assertEquals(0, barrier.getNumberWaiting()); |
422 |
|
} |
423 |
|
} |
424 |
|
|
568 |
– |
|
425 |
|
/** |
426 |
|
* Reset of a barrier after a failed command reinitializes it. |
427 |
|
*/ |
428 |
< |
public void testResetAfterCommandException() { |
429 |
< |
try { |
428 |
> |
public void testResetAfterCommandException() throws Exception { |
429 |
> |
final CyclicBarrier barrier = |
430 |
> |
new CyclicBarrier(3, new Runnable() { |
431 |
> |
public void run() { |
432 |
> |
throw new NullPointerException(); }}); |
433 |
> |
for (int i = 0; i < 2; i++) { |
434 |
|
final CyclicBarrier start = new CyclicBarrier(3); |
435 |
< |
final CyclicBarrier barrier = |
436 |
< |
new CyclicBarrier(3, new Runnable() { |
437 |
< |
public void run() { |
438 |
< |
throw new NullPointerException(); }}); |
439 |
< |
for (int i = 0; i < 2; i++) { |
440 |
< |
Thread t1 = new Thread(new Runnable() { |
441 |
< |
public void run() { |
442 |
< |
try { start.await(); } |
443 |
< |
catch (Exception ie) { |
444 |
< |
threadFail("start barrier"); |
445 |
< |
} |
446 |
< |
try { barrier.await(); } |
447 |
< |
catch (BrokenBarrierException ok) {} |
448 |
< |
catch (Throwable thrown) { |
449 |
< |
unexpectedException(); |
450 |
< |
}}}); |
451 |
< |
|
452 |
< |
Thread t2 = new Thread(new Runnable() { |
453 |
< |
public void run() { |
454 |
< |
try { start.await(); } |
455 |
< |
catch (Exception ie) { |
456 |
< |
threadFail("start barrier"); |
457 |
< |
} |
458 |
< |
try { barrier.await(); } |
459 |
< |
catch (BrokenBarrierException ok) {} |
460 |
< |
catch (Throwable thrown) { |
461 |
< |
unexpectedException(); |
602 |
< |
}}}); |
603 |
< |
|
604 |
< |
t1.start(); |
605 |
< |
t2.start(); |
606 |
< |
try { start.await(); } |
607 |
< |
catch (Exception ie) { threadFail("start barrier"); } |
608 |
< |
while (barrier.getNumberWaiting() < 2) { Thread.yield(); } |
609 |
< |
try { barrier.await(); } |
610 |
< |
catch (Exception ok) { } |
611 |
< |
t1.join(); |
612 |
< |
t2.join(); |
613 |
< |
assertTrue(barrier.isBroken()); |
614 |
< |
assertEquals(0, barrier.getNumberWaiting()); |
615 |
< |
barrier.reset(); |
616 |
< |
assertFalse(barrier.isBroken()); |
617 |
< |
assertEquals(0, barrier.getNumberWaiting()); |
618 |
< |
} |
619 |
< |
} |
620 |
< |
catch (Exception ex) { |
621 |
< |
unexpectedException(); |
435 |
> |
Thread t1 = new ThreadShouldThrow(BrokenBarrierException.class) { |
436 |
> |
public void realRun() throws Exception { |
437 |
> |
start.await(); |
438 |
> |
barrier.await(); |
439 |
> |
}}; |
440 |
> |
|
441 |
> |
Thread t2 = new ThreadShouldThrow(BrokenBarrierException.class) { |
442 |
> |
public void realRun() throws Exception { |
443 |
> |
start.await(); |
444 |
> |
barrier.await(); |
445 |
> |
}}; |
446 |
> |
|
447 |
> |
t1.start(); |
448 |
> |
t2.start(); |
449 |
> |
start.await(); |
450 |
> |
awaitNumberWaiting(barrier, 2); |
451 |
> |
try { |
452 |
> |
barrier.await(); |
453 |
> |
shouldThrow(); |
454 |
> |
} catch (NullPointerException success) {} |
455 |
> |
awaitTermination(t1); |
456 |
> |
awaitTermination(t2); |
457 |
> |
assertTrue(barrier.isBroken()); |
458 |
> |
assertEquals(0, barrier.getNumberWaiting()); |
459 |
> |
barrier.reset(); |
460 |
> |
assertFalse(barrier.isBroken()); |
461 |
> |
assertEquals(0, barrier.getNumberWaiting()); |
462 |
|
} |
463 |
|
} |
464 |
|
} |