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/* |
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* Written by members of JCP JSR-166 Expert Group and released to the |
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* public domain. Use, modify, and redistribute this code in any way |
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* without acknowledgement. Other contributors include Andrew Wright, |
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* Jeffrey Hayes, Pat Fischer, Mike Judd. |
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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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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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*/ |
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import junit.framework.*; |
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import java.util.concurrent.locks.*; |
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import java.util.concurrent.*; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import java.util.*; |
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import java.io.*; |
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public class ReentrantLockTest 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(ReentrantLockTest.class); |
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return new TestSuite(ReentrantLockTest.class); |
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} |
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/** |
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* A runnable calling lockInterruptibly |
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*/ |
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class InterruptibleLockRunnable implements Runnable { |
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class InterruptibleLockRunnable extends CheckedRunnable { |
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final ReentrantLock lock; |
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InterruptibleLockRunnable(ReentrantLock l) { lock = l; } |
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public void run() { |
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try { |
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lock.lockInterruptibly(); |
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} catch(InterruptedException success){} |
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public void realRun() throws InterruptedException { |
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lock.lockInterruptibly(); |
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} |
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} |
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* A runnable calling lockInterruptibly that expects to be |
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* interrupted |
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*/ |
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class InterruptedLockRunnable implements Runnable { |
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class InterruptedLockRunnable extends CheckedInterruptedRunnable { |
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final ReentrantLock lock; |
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InterruptedLockRunnable(ReentrantLock l) { lock = l; } |
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public void run() { |
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try { |
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lock.lockInterruptibly(); |
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threadShouldThrow(); |
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} catch(InterruptedException success){} |
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public void realRun() throws InterruptedException { |
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lock.lockInterruptibly(); |
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} |
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} |
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|
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*/ |
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static class PublicReentrantLock extends ReentrantLock { |
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PublicReentrantLock() { super(); } |
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public Collection<Thread> getQueuedThreads() { |
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return super.getQueuedThreads(); |
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public Collection<Thread> getQueuedThreads() { |
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return super.getQueuedThreads(); |
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} |
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public ConditionObject newCondition() { |
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return new PublicCondition(); |
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public Collection<Thread> getWaitingThreads(Condition c) { |
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return super.getWaitingThreads(c); |
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} |
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class PublicCondition extends ReentrantLock.ConditionObject { |
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PublicCondition() { } |
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public Collection<Thread> getWaitingThreads() { |
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return super.getWaitingThreads(); |
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} |
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} |
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|
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} |
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/** |
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* Constructor sets given fairness |
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*/ |
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public void testConstructor() { |
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ReentrantLock rl = new ReentrantLock(); |
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assertFalse(rl.isFair()); |
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ReentrantLock r2 = new ReentrantLock(true); |
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assertTrue(r2.isFair()); |
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public void testConstructor() { |
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assertFalse(new ReentrantLock().isFair()); |
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assertFalse(new ReentrantLock(false).isFair()); |
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assertTrue(new ReentrantLock(true).isFair()); |
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} |
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/** |
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* locking an unlocked lock succeeds |
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*/ |
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public void testLock() { |
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ReentrantLock rl = new ReentrantLock(); |
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public void testLock() { |
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ReentrantLock rl = new ReentrantLock(); |
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rl.lock(); |
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assertTrue(rl.isLocked()); |
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rl.unlock(); |
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assertFalse(rl.isLocked()); |
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} |
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/** |
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* locking an unlocked fair lock succeeds |
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*/ |
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public void testFairLock() { |
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ReentrantLock rl = new ReentrantLock(true); |
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public void testFairLock() { |
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ReentrantLock rl = new ReentrantLock(true); |
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rl.lock(); |
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assertTrue(rl.isLocked()); |
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rl.unlock(); |
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/** |
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* Unlocking an unlocked lock throws IllegalMonitorStateException |
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*/ |
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public void testUnlock_IllegalMonitorStateException() { |
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ReentrantLock rl = new ReentrantLock(); |
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try { |
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rl.unlock(); |
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shouldThrow(); |
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|
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} catch(IllegalMonitorStateException success){} |
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public void testUnlock_IllegalMonitorStateException() { |
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ReentrantLock rl = new ReentrantLock(); |
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try { |
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rl.unlock(); |
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shouldThrow(); |
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} catch (IllegalMonitorStateException success) {} |
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} |
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/** |
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* trylock on an unlocked lock succeeds |
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* tryLock on an unlocked lock succeeds |
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*/ |
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public void testTryLock() { |
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ReentrantLock rl = new ReentrantLock(); |
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public void testTryLock() { |
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ReentrantLock rl = new ReentrantLock(); |
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assertTrue(rl.tryLock()); |
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assertTrue(rl.isLocked()); |
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rl.unlock(); |
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/** |
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* getQueueLength reports number of waiting threads |
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* hasQueuedThreads reports whether there are waiting threads |
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*/ |
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public void testGetQueueLength() { |
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final ReentrantLock lock = new ReentrantLock(); |
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public void testhasQueuedThreads() throws InterruptedException { |
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final ReentrantLock lock = new ReentrantLock(); |
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Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
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Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
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try { |
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assertEquals(0, lock.getQueueLength()); |
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lock.lock(); |
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t1.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertEquals(1, lock.getQueueLength()); |
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t2.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertEquals(2, lock.getQueueLength()); |
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t1.interrupt(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertEquals(1, lock.getQueueLength()); |
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lock.unlock(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertEquals(0, lock.getQueueLength()); |
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t1.join(); |
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t2.join(); |
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} catch(Exception e){ |
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unexpectedException(); |
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} |
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} |
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assertFalse(lock.hasQueuedThreads()); |
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lock.lock(); |
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t1.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertTrue(lock.hasQueuedThreads()); |
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t2.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertTrue(lock.hasQueuedThreads()); |
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t1.interrupt(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertTrue(lock.hasQueuedThreads()); |
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lock.unlock(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertFalse(lock.hasQueuedThreads()); |
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t1.join(); |
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t2.join(); |
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} |
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|
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/** |
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* getQueuedThreads includes waiting threads |
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* getQueueLength reports number of waiting threads |
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*/ |
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public void testGetQueuedThreads() { |
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final PublicReentrantLock lock = new PublicReentrantLock(); |
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public void testGetQueueLength() throws InterruptedException { |
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final ReentrantLock lock = new ReentrantLock(); |
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Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
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Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
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try { |
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assertTrue(lock.getQueuedThreads().isEmpty()); |
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lock.lock(); |
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assertTrue(lock.getQueuedThreads().isEmpty()); |
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t1.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertTrue(lock.getQueuedThreads().contains(t1)); |
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t2.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertTrue(lock.getQueuedThreads().contains(t1)); |
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assertTrue(lock.getQueuedThreads().contains(t2)); |
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t1.interrupt(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertFalse(lock.getQueuedThreads().contains(t1)); |
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assertTrue(lock.getQueuedThreads().contains(t2)); |
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lock.unlock(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertTrue(lock.getQueuedThreads().isEmpty()); |
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t1.join(); |
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t2.join(); |
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} catch(Exception e){ |
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unexpectedException(); |
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} |
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} |
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|
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assertEquals(0, lock.getQueueLength()); |
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lock.lock(); |
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t1.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertEquals(1, lock.getQueueLength()); |
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t2.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertEquals(2, lock.getQueueLength()); |
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t1.interrupt(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertEquals(1, lock.getQueueLength()); |
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lock.unlock(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertEquals(0, lock.getQueueLength()); |
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t1.join(); |
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t2.join(); |
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} |
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|
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/** |
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* timed trylock is interruptible. |
164 |
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* getQueueLength reports number of waiting threads |
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*/ |
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public void testInterruptedException2() { |
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final ReentrantLock lock = new ReentrantLock(); |
168 |
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lock.lock(); |
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Thread t = new Thread(new Runnable() { |
170 |
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public void run() { |
171 |
< |
try { |
172 |
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lock.tryLock(MEDIUM_DELAY_MS,TimeUnit.MILLISECONDS); |
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threadShouldThrow(); |
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< |
} catch(InterruptedException success){} |
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} |
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}); |
177 |
< |
try { |
178 |
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t.start(); |
179 |
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t.interrupt(); |
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} catch(Exception e){ |
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unexpectedException(); |
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} |
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public void testGetQueueLength_fair() throws InterruptedException { |
167 |
> |
final ReentrantLock lock = new ReentrantLock(true); |
168 |
> |
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
169 |
> |
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
170 |
> |
assertEquals(0, lock.getQueueLength()); |
171 |
> |
lock.lock(); |
172 |
> |
t1.start(); |
173 |
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Thread.sleep(SHORT_DELAY_MS); |
174 |
> |
assertEquals(1, lock.getQueueLength()); |
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> |
t2.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
177 |
> |
assertEquals(2, lock.getQueueLength()); |
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> |
t1.interrupt(); |
179 |
> |
Thread.sleep(SHORT_DELAY_MS); |
180 |
> |
assertEquals(1, lock.getQueueLength()); |
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> |
lock.unlock(); |
182 |
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Thread.sleep(SHORT_DELAY_MS); |
183 |
> |
assertEquals(0, lock.getQueueLength()); |
184 |
> |
t1.join(); |
185 |
> |
t2.join(); |
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|
} |
187 |
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|
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|
188 |
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/** |
189 |
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* Trylock on a locked lock fails |
189 |
> |
* hasQueuedThread(null) throws NPE |
190 |
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*/ |
191 |
< |
public void testTryLockWhenLocked() { |
192 |
< |
final ReentrantLock lock = new ReentrantLock(); |
215 |
< |
lock.lock(); |
216 |
< |
Thread t = new Thread(new Runnable() { |
217 |
< |
public void run() { |
218 |
< |
threadAssertFalse(lock.tryLock()); |
219 |
< |
} |
220 |
< |
}); |
191 |
> |
public void testHasQueuedThreadNPE() { |
192 |
> |
final ReentrantLock sync = new ReentrantLock(); |
193 |
|
try { |
194 |
< |
t.start(); |
195 |
< |
t.join(); |
196 |
< |
lock.unlock(); |
197 |
< |
} catch(Exception e){ |
226 |
< |
unexpectedException(); |
227 |
< |
} |
228 |
< |
} |
194 |
> |
sync.hasQueuedThread(null); |
195 |
> |
shouldThrow(); |
196 |
> |
} catch (NullPointerException success) {} |
197 |
> |
} |
198 |
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|
199 |
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/** |
200 |
< |
* Timed trylock on a locked lock times out |
200 |
> |
* hasQueuedThread reports whether a thread is queued. |
201 |
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*/ |
202 |
< |
public void testTryLock_Timeout() { |
203 |
< |
final ReentrantLock lock = new ReentrantLock(); |
204 |
< |
lock.lock(); |
205 |
< |
Thread t = new Thread(new Runnable() { |
206 |
< |
public void run() { |
207 |
< |
try { |
208 |
< |
threadAssertFalse(lock.tryLock(1, TimeUnit.MILLISECONDS)); |
209 |
< |
} catch (Exception ex) { |
210 |
< |
threadUnexpectedException(); |
211 |
< |
} |
212 |
< |
} |
213 |
< |
}); |
214 |
< |
try { |
215 |
< |
t.start(); |
216 |
< |
t.join(); |
217 |
< |
lock.unlock(); |
218 |
< |
} catch(Exception e){ |
219 |
< |
unexpectedException(); |
220 |
< |
} |
221 |
< |
} |
222 |
< |
|
202 |
> |
public void testHasQueuedThread() throws InterruptedException { |
203 |
> |
final ReentrantLock sync = new ReentrantLock(); |
204 |
> |
Thread t1 = new Thread(new InterruptedLockRunnable(sync)); |
205 |
> |
Thread t2 = new Thread(new InterruptibleLockRunnable(sync)); |
206 |
> |
assertFalse(sync.hasQueuedThread(t1)); |
207 |
> |
assertFalse(sync.hasQueuedThread(t2)); |
208 |
> |
sync.lock(); |
209 |
> |
t1.start(); |
210 |
> |
Thread.sleep(SHORT_DELAY_MS); |
211 |
> |
assertTrue(sync.hasQueuedThread(t1)); |
212 |
> |
t2.start(); |
213 |
> |
Thread.sleep(SHORT_DELAY_MS); |
214 |
> |
assertTrue(sync.hasQueuedThread(t1)); |
215 |
> |
assertTrue(sync.hasQueuedThread(t2)); |
216 |
> |
t1.interrupt(); |
217 |
> |
Thread.sleep(SHORT_DELAY_MS); |
218 |
> |
assertFalse(sync.hasQueuedThread(t1)); |
219 |
> |
assertTrue(sync.hasQueuedThread(t2)); |
220 |
> |
sync.unlock(); |
221 |
> |
Thread.sleep(SHORT_DELAY_MS); |
222 |
> |
assertFalse(sync.hasQueuedThread(t1)); |
223 |
> |
Thread.sleep(SHORT_DELAY_MS); |
224 |
> |
assertFalse(sync.hasQueuedThread(t2)); |
225 |
> |
t1.join(); |
226 |
> |
t2.join(); |
227 |
> |
} |
228 |
> |
|
229 |
> |
|
230 |
> |
/** |
231 |
> |
* getQueuedThreads includes waiting threads |
232 |
> |
*/ |
233 |
> |
public void testGetQueuedThreads() throws InterruptedException { |
234 |
> |
final PublicReentrantLock lock = new PublicReentrantLock(); |
235 |
> |
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
236 |
> |
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
237 |
> |
assertTrue(lock.getQueuedThreads().isEmpty()); |
238 |
> |
lock.lock(); |
239 |
> |
assertTrue(lock.getQueuedThreads().isEmpty()); |
240 |
> |
t1.start(); |
241 |
> |
Thread.sleep(SHORT_DELAY_MS); |
242 |
> |
assertTrue(lock.getQueuedThreads().contains(t1)); |
243 |
> |
t2.start(); |
244 |
> |
Thread.sleep(SHORT_DELAY_MS); |
245 |
> |
assertTrue(lock.getQueuedThreads().contains(t1)); |
246 |
> |
assertTrue(lock.getQueuedThreads().contains(t2)); |
247 |
> |
t1.interrupt(); |
248 |
> |
Thread.sleep(SHORT_DELAY_MS); |
249 |
> |
assertFalse(lock.getQueuedThreads().contains(t1)); |
250 |
> |
assertTrue(lock.getQueuedThreads().contains(t2)); |
251 |
> |
lock.unlock(); |
252 |
> |
Thread.sleep(SHORT_DELAY_MS); |
253 |
> |
assertTrue(lock.getQueuedThreads().isEmpty()); |
254 |
> |
t1.join(); |
255 |
> |
t2.join(); |
256 |
> |
} |
257 |
> |
|
258 |
> |
|
259 |
> |
/** |
260 |
> |
* timed tryLock is interruptible. |
261 |
> |
*/ |
262 |
> |
public void testInterruptedException2() throws InterruptedException { |
263 |
> |
final ReentrantLock lock = new ReentrantLock(); |
264 |
> |
lock.lock(); |
265 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
266 |
> |
public void realRun() throws InterruptedException { |
267 |
> |
lock.tryLock(MEDIUM_DELAY_MS,MILLISECONDS); |
268 |
> |
}}); |
269 |
> |
|
270 |
> |
t.start(); |
271 |
> |
Thread.sleep(SHORT_DELAY_MS); |
272 |
> |
t.interrupt(); |
273 |
> |
t.join(); |
274 |
> |
} |
275 |
> |
|
276 |
> |
|
277 |
> |
/** |
278 |
> |
* TryLock on a locked lock fails |
279 |
> |
*/ |
280 |
> |
public void testTryLockWhenLocked() throws InterruptedException { |
281 |
> |
final ReentrantLock lock = new ReentrantLock(); |
282 |
> |
lock.lock(); |
283 |
> |
Thread t = new Thread(new CheckedRunnable() { |
284 |
> |
public void realRun() { |
285 |
> |
threadAssertFalse(lock.tryLock()); |
286 |
> |
}}); |
287 |
> |
|
288 |
> |
t.start(); |
289 |
> |
t.join(); |
290 |
> |
lock.unlock(); |
291 |
> |
} |
292 |
> |
|
293 |
> |
/** |
294 |
> |
* Timed tryLock on a locked lock times out |
295 |
> |
*/ |
296 |
> |
public void testTryLock_Timeout() throws InterruptedException { |
297 |
> |
final ReentrantLock lock = new ReentrantLock(); |
298 |
> |
lock.lock(); |
299 |
> |
Thread t = new Thread(new CheckedRunnable() { |
300 |
> |
public void realRun() throws InterruptedException { |
301 |
> |
threadAssertFalse(lock.tryLock(1, MILLISECONDS)); |
302 |
> |
}}); |
303 |
> |
|
304 |
> |
t.start(); |
305 |
> |
t.join(); |
306 |
> |
lock.unlock(); |
307 |
> |
} |
308 |
> |
|
309 |
|
/** |
310 |
|
* getHoldCount returns number of recursive holds |
311 |
|
*/ |
312 |
|
public void testGetHoldCount() { |
313 |
< |
ReentrantLock lock = new ReentrantLock(); |
314 |
< |
for(int i = 1; i <= SIZE; i++) { |
315 |
< |
lock.lock(); |
316 |
< |
assertEquals(i,lock.getHoldCount()); |
317 |
< |
} |
318 |
< |
for(int i = SIZE; i > 0; i--) { |
319 |
< |
lock.unlock(); |
320 |
< |
assertEquals(i-1,lock.getHoldCount()); |
321 |
< |
} |
313 |
> |
ReentrantLock lock = new ReentrantLock(); |
314 |
> |
for (int i = 1; i <= SIZE; i++) { |
315 |
> |
lock.lock(); |
316 |
> |
assertEquals(i, lock.getHoldCount()); |
317 |
> |
} |
318 |
> |
for (int i = SIZE; i > 0; i--) { |
319 |
> |
lock.unlock(); |
320 |
> |
assertEquals(i-1, lock.getHoldCount()); |
321 |
> |
} |
322 |
|
} |
323 |
< |
|
324 |
< |
|
323 |
> |
|
324 |
> |
|
325 |
|
/** |
326 |
|
* isLocked is true when locked and false when not |
327 |
|
*/ |
328 |
< |
public void testIsLocked() { |
329 |
< |
final ReentrantLock lock = new ReentrantLock(); |
330 |
< |
lock.lock(); |
331 |
< |
assertTrue(lock.isLocked()); |
332 |
< |
lock.unlock(); |
333 |
< |
assertFalse(lock.isLocked()); |
334 |
< |
Thread t = new Thread(new Runnable() { |
335 |
< |
public void run() { |
336 |
< |
lock.lock(); |
337 |
< |
try { |
338 |
< |
Thread.sleep(SMALL_DELAY_MS); |
339 |
< |
} |
340 |
< |
catch(Exception e) { |
341 |
< |
threadUnexpectedException(); |
342 |
< |
} |
343 |
< |
lock.unlock(); |
344 |
< |
} |
345 |
< |
}); |
291 |
< |
try { |
292 |
< |
t.start(); |
293 |
< |
Thread.sleep(SHORT_DELAY_MS); |
294 |
< |
assertTrue(lock.isLocked()); |
295 |
< |
t.join(); |
296 |
< |
assertFalse(lock.isLocked()); |
297 |
< |
} catch(Exception e){ |
298 |
< |
unexpectedException(); |
299 |
< |
} |
328 |
> |
public void testIsLocked() throws InterruptedException { |
329 |
> |
final ReentrantLock lock = new ReentrantLock(); |
330 |
> |
lock.lock(); |
331 |
> |
assertTrue(lock.isLocked()); |
332 |
> |
lock.unlock(); |
333 |
> |
assertFalse(lock.isLocked()); |
334 |
> |
Thread t = new Thread(new CheckedRunnable() { |
335 |
> |
public void realRun() throws InterruptedException { |
336 |
> |
lock.lock(); |
337 |
> |
Thread.sleep(SMALL_DELAY_MS); |
338 |
> |
lock.unlock(); |
339 |
> |
}}); |
340 |
> |
|
341 |
> |
t.start(); |
342 |
> |
Thread.sleep(SHORT_DELAY_MS); |
343 |
> |
assertTrue(lock.isLocked()); |
344 |
> |
t.join(); |
345 |
> |
assertFalse(lock.isLocked()); |
346 |
|
} |
347 |
|
|
348 |
|
|
349 |
|
/** |
350 |
|
* lockInterruptibly is interruptible. |
351 |
|
*/ |
352 |
< |
public void testLockInterruptibly1() { |
353 |
< |
final ReentrantLock lock = new ReentrantLock(); |
354 |
< |
lock.lock(); |
355 |
< |
Thread t = new Thread(new InterruptedLockRunnable(lock)); |
356 |
< |
try { |
357 |
< |
t.start(); |
358 |
< |
t.interrupt(); |
359 |
< |
lock.unlock(); |
360 |
< |
t.join(); |
361 |
< |
} catch(Exception e){ |
362 |
< |
unexpectedException(); |
317 |
< |
} |
318 |
< |
} |
352 |
> |
public void testLockInterruptibly1() throws InterruptedException { |
353 |
> |
final ReentrantLock lock = new ReentrantLock(); |
354 |
> |
lock.lock(); |
355 |
> |
Thread t = new Thread(new InterruptedLockRunnable(lock)); |
356 |
> |
t.start(); |
357 |
> |
Thread.sleep(SHORT_DELAY_MS); |
358 |
> |
t.interrupt(); |
359 |
> |
Thread.sleep(SHORT_DELAY_MS); |
360 |
> |
lock.unlock(); |
361 |
> |
t.join(); |
362 |
> |
} |
363 |
|
|
364 |
|
/** |
365 |
|
* lockInterruptibly succeeds when unlocked, else is interruptible |
366 |
|
*/ |
367 |
< |
public void testLockInterruptibly2() { |
368 |
< |
final ReentrantLock lock = new ReentrantLock(); |
369 |
< |
try { |
370 |
< |
lock.lockInterruptibly(); |
371 |
< |
} catch(Exception e) { |
372 |
< |
unexpectedException(); |
373 |
< |
} |
374 |
< |
Thread t = new Thread(new InterruptedLockRunnable(lock)); |
375 |
< |
try { |
376 |
< |
t.start(); |
333 |
< |
t.interrupt(); |
334 |
< |
assertTrue(lock.isLocked()); |
335 |
< |
assertTrue(lock.isHeldByCurrentThread()); |
336 |
< |
t.join(); |
337 |
< |
} catch(Exception e){ |
338 |
< |
unexpectedException(); |
339 |
< |
} |
367 |
> |
public void testLockInterruptibly2() throws InterruptedException { |
368 |
> |
final ReentrantLock lock = new ReentrantLock(); |
369 |
> |
lock.lockInterruptibly(); |
370 |
> |
Thread t = new Thread(new InterruptedLockRunnable(lock)); |
371 |
> |
t.start(); |
372 |
> |
Thread.sleep(SHORT_DELAY_MS); |
373 |
> |
t.interrupt(); |
374 |
> |
assertTrue(lock.isLocked()); |
375 |
> |
assertTrue(lock.isHeldByCurrentThread()); |
376 |
> |
t.join(); |
377 |
|
} |
378 |
|
|
379 |
|
/** |
380 |
|
* Calling await without holding lock throws IllegalMonitorStateException |
381 |
|
*/ |
382 |
< |
public void testAwait_IllegalMonitor() { |
383 |
< |
final ReentrantLock lock = new ReentrantLock(); |
382 |
> |
public void testAwait_IllegalMonitor() throws InterruptedException { |
383 |
> |
final ReentrantLock lock = new ReentrantLock(); |
384 |
|
final Condition c = lock.newCondition(); |
385 |
|
try { |
386 |
|
c.await(); |
387 |
|
shouldThrow(); |
388 |
< |
} |
352 |
< |
catch (IllegalMonitorStateException success) { |
353 |
< |
} |
354 |
< |
catch (Exception ex) { |
355 |
< |
unexpectedException(); |
356 |
< |
} |
388 |
> |
} catch (IllegalMonitorStateException success) {} |
389 |
|
} |
390 |
|
|
391 |
|
/** |
392 |
|
* Calling signal without holding lock throws IllegalMonitorStateException |
393 |
|
*/ |
394 |
|
public void testSignal_IllegalMonitor() { |
395 |
< |
final ReentrantLock lock = new ReentrantLock(); |
395 |
> |
final ReentrantLock lock = new ReentrantLock(); |
396 |
|
final Condition c = lock.newCondition(); |
397 |
|
try { |
398 |
|
c.signal(); |
399 |
|
shouldThrow(); |
400 |
< |
} |
369 |
< |
catch (IllegalMonitorStateException success) { |
370 |
< |
} |
371 |
< |
catch (Exception ex) { |
372 |
< |
unexpectedException(); |
373 |
< |
} |
400 |
> |
} catch (IllegalMonitorStateException success) {} |
401 |
|
} |
402 |
|
|
403 |
|
/** |
404 |
|
* awaitNanos without a signal times out |
405 |
|
*/ |
406 |
< |
public void testAwaitNanos_Timeout() { |
407 |
< |
final ReentrantLock lock = new ReentrantLock(); |
406 |
> |
public void testAwaitNanos_Timeout() throws InterruptedException { |
407 |
> |
final ReentrantLock lock = new ReentrantLock(); |
408 |
|
final Condition c = lock.newCondition(); |
409 |
< |
try { |
410 |
< |
lock.lock(); |
411 |
< |
long t = c.awaitNanos(100); |
412 |
< |
assertTrue(t <= 0); |
386 |
< |
lock.unlock(); |
387 |
< |
} |
388 |
< |
catch (Exception ex) { |
389 |
< |
unexpectedException(); |
390 |
< |
} |
409 |
> |
lock.lock(); |
410 |
> |
long t = c.awaitNanos(100); |
411 |
> |
assertTrue(t <= 0); |
412 |
> |
lock.unlock(); |
413 |
|
} |
414 |
|
|
415 |
|
/** |
416 |
|
* timed await without a signal times out |
417 |
|
*/ |
418 |
< |
public void testAwait_Timeout() { |
419 |
< |
final ReentrantLock lock = new ReentrantLock(); |
418 |
> |
public void testAwait_Timeout() throws InterruptedException { |
419 |
> |
final ReentrantLock lock = new ReentrantLock(); |
420 |
|
final Condition c = lock.newCondition(); |
421 |
< |
try { |
422 |
< |
lock.lock(); |
423 |
< |
assertFalse(c.await(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
402 |
< |
lock.unlock(); |
403 |
< |
} |
404 |
< |
catch (Exception ex) { |
405 |
< |
unexpectedException(); |
406 |
< |
} |
421 |
> |
lock.lock(); |
422 |
> |
assertFalse(c.await(SHORT_DELAY_MS, MILLISECONDS)); |
423 |
> |
lock.unlock(); |
424 |
|
} |
425 |
|
|
426 |
|
/** |
427 |
|
* awaitUntil without a signal times out |
428 |
|
*/ |
429 |
< |
public void testAwaitUntil_Timeout() { |
430 |
< |
final ReentrantLock lock = new ReentrantLock(); |
429 |
> |
public void testAwaitUntil_Timeout() throws InterruptedException { |
430 |
> |
final ReentrantLock lock = new ReentrantLock(); |
431 |
|
final Condition c = lock.newCondition(); |
432 |
< |
try { |
433 |
< |
lock.lock(); |
434 |
< |
java.util.Date d = new java.util.Date(); |
435 |
< |
assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10))); |
419 |
< |
lock.unlock(); |
420 |
< |
} |
421 |
< |
catch (Exception ex) { |
422 |
< |
unexpectedException(); |
423 |
< |
} |
432 |
> |
lock.lock(); |
433 |
> |
java.util.Date d = new java.util.Date(); |
434 |
> |
assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10))); |
435 |
> |
lock.unlock(); |
436 |
|
} |
437 |
|
|
438 |
|
/** |
439 |
|
* await returns when signalled |
440 |
|
*/ |
441 |
< |
public void testAwait() { |
442 |
< |
final ReentrantLock lock = new ReentrantLock(); |
443 |
< |
final ReentrantLock.ConditionObject c = lock.newCondition(); |
444 |
< |
Thread t = new Thread(new Runnable() { |
445 |
< |
public void run() { |
446 |
< |
try { |
447 |
< |
lock.lock(); |
448 |
< |
c.await(); |
449 |
< |
lock.unlock(); |
450 |
< |
} |
451 |
< |
catch(InterruptedException e) { |
452 |
< |
threadUnexpectedException(); |
453 |
< |
} |
454 |
< |
} |
455 |
< |
}); |
441 |
> |
public void testAwait() throws InterruptedException { |
442 |
> |
final ReentrantLock lock = new ReentrantLock(); |
443 |
> |
final Condition c = lock.newCondition(); |
444 |
> |
Thread t = new Thread(new CheckedRunnable() { |
445 |
> |
public void realRun() throws InterruptedException { |
446 |
> |
lock.lock(); |
447 |
> |
c.await(); |
448 |
> |
lock.unlock(); |
449 |
> |
}}); |
450 |
> |
|
451 |
> |
t.start(); |
452 |
> |
Thread.sleep(SHORT_DELAY_MS); |
453 |
> |
lock.lock(); |
454 |
> |
c.signal(); |
455 |
> |
lock.unlock(); |
456 |
> |
t.join(SHORT_DELAY_MS); |
457 |
> |
assertFalse(t.isAlive()); |
458 |
> |
} |
459 |
|
|
460 |
+ |
/** |
461 |
+ |
* hasWaiters throws NPE if null |
462 |
+ |
*/ |
463 |
+ |
public void testHasWaitersNPE() { |
464 |
+ |
final ReentrantLock lock = new ReentrantLock(); |
465 |
|
try { |
466 |
< |
t.start(); |
467 |
< |
Thread.sleep(SHORT_DELAY_MS); |
468 |
< |
lock.lock(); |
449 |
< |
c.signal(); |
450 |
< |
lock.unlock(); |
451 |
< |
t.join(SHORT_DELAY_MS); |
452 |
< |
assertFalse(t.isAlive()); |
453 |
< |
} |
454 |
< |
catch (Exception ex) { |
455 |
< |
unexpectedException(); |
456 |
< |
} |
466 |
> |
lock.hasWaiters(null); |
467 |
> |
shouldThrow(); |
468 |
> |
} catch (NullPointerException success) {} |
469 |
|
} |
470 |
|
|
471 |
|
/** |
472 |
< |
* hasWaiters returns true when a thread is waiting, else false |
472 |
> |
* getWaitQueueLength throws NPE if null |
473 |
|
*/ |
474 |
< |
public void testHasWaiters() { |
475 |
< |
final ReentrantLock lock = new ReentrantLock(); |
476 |
< |
final ReentrantLock.ConditionObject c = lock.newCondition(); |
477 |
< |
Thread t = new Thread(new Runnable() { |
478 |
< |
public void run() { |
479 |
< |
try { |
480 |
< |
lock.lock(); |
469 |
< |
threadAssertFalse(c.hasWaiters()); |
470 |
< |
threadAssertEquals(0, c.getWaitQueueLength()); |
471 |
< |
c.await(); |
472 |
< |
lock.unlock(); |
473 |
< |
} |
474 |
< |
catch(InterruptedException e) { |
475 |
< |
threadUnexpectedException(); |
476 |
< |
} |
477 |
< |
} |
478 |
< |
}); |
474 |
> |
public void testGetWaitQueueLengthNPE() { |
475 |
> |
final ReentrantLock lock = new ReentrantLock(); |
476 |
> |
try { |
477 |
> |
lock.getWaitQueueLength(null); |
478 |
> |
shouldThrow(); |
479 |
> |
} catch (NullPointerException success) {} |
480 |
> |
} |
481 |
|
|
482 |
+ |
|
483 |
+ |
/** |
484 |
+ |
* getWaitingThreads throws NPE if null |
485 |
+ |
*/ |
486 |
+ |
public void testGetWaitingThreadsNPE() { |
487 |
+ |
final PublicReentrantLock lock = new PublicReentrantLock(); |
488 |
|
try { |
489 |
< |
t.start(); |
490 |
< |
Thread.sleep(SHORT_DELAY_MS); |
491 |
< |
lock.lock(); |
492 |
< |
assertTrue(c.hasWaiters()); |
493 |
< |
assertEquals(1, c.getWaitQueueLength()); |
494 |
< |
c.signal(); |
495 |
< |
lock.unlock(); |
496 |
< |
Thread.sleep(SHORT_DELAY_MS); |
497 |
< |
lock.lock(); |
498 |
< |
assertFalse(c.hasWaiters()); |
499 |
< |
assertEquals(0, c.getWaitQueueLength()); |
500 |
< |
lock.unlock(); |
501 |
< |
t.join(SHORT_DELAY_MS); |
502 |
< |
assertFalse(t.isAlive()); |
503 |
< |
} |
504 |
< |
catch (Exception ex) { |
505 |
< |
unexpectedException(); |
506 |
< |
} |
489 |
> |
lock.getWaitingThreads(null); |
490 |
> |
shouldThrow(); |
491 |
> |
} catch (NullPointerException success) {} |
492 |
> |
} |
493 |
> |
|
494 |
> |
|
495 |
> |
/** |
496 |
> |
* hasWaiters throws IAE if not owned |
497 |
> |
*/ |
498 |
> |
public void testHasWaitersIAE() { |
499 |
> |
final ReentrantLock lock = new ReentrantLock(); |
500 |
> |
final Condition c = lock.newCondition(); |
501 |
> |
final ReentrantLock lock2 = new ReentrantLock(); |
502 |
> |
try { |
503 |
> |
lock2.hasWaiters(c); |
504 |
> |
shouldThrow(); |
505 |
> |
} catch (IllegalArgumentException success) {} |
506 |
> |
} |
507 |
> |
|
508 |
> |
/** |
509 |
> |
* hasWaiters throws IMSE if not locked |
510 |
> |
*/ |
511 |
> |
public void testHasWaitersIMSE() { |
512 |
> |
final ReentrantLock lock = new ReentrantLock(); |
513 |
> |
final Condition c = lock.newCondition(); |
514 |
> |
try { |
515 |
> |
lock.hasWaiters(c); |
516 |
> |
shouldThrow(); |
517 |
> |
} catch (IllegalMonitorStateException success) {} |
518 |
> |
} |
519 |
> |
|
520 |
> |
|
521 |
> |
/** |
522 |
> |
* getWaitQueueLength throws IAE if not owned |
523 |
> |
*/ |
524 |
> |
public void testGetWaitQueueLengthIAE() { |
525 |
> |
final ReentrantLock lock = new ReentrantLock(); |
526 |
> |
final Condition c = lock.newCondition(); |
527 |
> |
final ReentrantLock lock2 = new ReentrantLock(); |
528 |
> |
try { |
529 |
> |
lock2.getWaitQueueLength(c); |
530 |
> |
shouldThrow(); |
531 |
> |
} catch (IllegalArgumentException success) {} |
532 |
> |
} |
533 |
> |
|
534 |
> |
/** |
535 |
> |
* getWaitQueueLength throws IMSE if not locked |
536 |
> |
*/ |
537 |
> |
public void testGetWaitQueueLengthIMSE() { |
538 |
> |
final ReentrantLock lock = new ReentrantLock(); |
539 |
> |
final Condition c = lock.newCondition(); |
540 |
> |
try { |
541 |
> |
lock.getWaitQueueLength(c); |
542 |
> |
shouldThrow(); |
543 |
> |
} catch (IllegalMonitorStateException success) {} |
544 |
> |
} |
545 |
> |
|
546 |
> |
|
547 |
> |
/** |
548 |
> |
* getWaitingThreads throws IAE if not owned |
549 |
> |
*/ |
550 |
> |
public void testGetWaitingThreadsIAE() { |
551 |
> |
final PublicReentrantLock lock = new PublicReentrantLock(); |
552 |
> |
final Condition c = lock.newCondition(); |
553 |
> |
final PublicReentrantLock lock2 = new PublicReentrantLock(); |
554 |
> |
try { |
555 |
> |
lock2.getWaitingThreads(c); |
556 |
> |
shouldThrow(); |
557 |
> |
} catch (IllegalArgumentException success) {} |
558 |
> |
} |
559 |
> |
|
560 |
> |
/** |
561 |
> |
* getWaitingThreads throws IMSE if not locked |
562 |
> |
*/ |
563 |
> |
public void testGetWaitingThreadsIMSE() { |
564 |
> |
final PublicReentrantLock lock = new PublicReentrantLock(); |
565 |
> |
final Condition c = lock.newCondition(); |
566 |
> |
try { |
567 |
> |
lock.getWaitingThreads(c); |
568 |
> |
shouldThrow(); |
569 |
> |
} catch (IllegalMonitorStateException success) {} |
570 |
> |
} |
571 |
> |
|
572 |
> |
|
573 |
> |
/** |
574 |
> |
* hasWaiters returns true when a thread is waiting, else false |
575 |
> |
*/ |
576 |
> |
public void testHasWaiters() throws InterruptedException { |
577 |
> |
final ReentrantLock lock = new ReentrantLock(); |
578 |
> |
final Condition c = lock.newCondition(); |
579 |
> |
Thread t = new Thread(new CheckedRunnable() { |
580 |
> |
public void realRun() throws InterruptedException { |
581 |
> |
lock.lock(); |
582 |
> |
threadAssertFalse(lock.hasWaiters(c)); |
583 |
> |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
584 |
> |
c.await(); |
585 |
> |
lock.unlock(); |
586 |
> |
}}); |
587 |
> |
|
588 |
> |
t.start(); |
589 |
> |
Thread.sleep(SHORT_DELAY_MS); |
590 |
> |
lock.lock(); |
591 |
> |
assertTrue(lock.hasWaiters(c)); |
592 |
> |
assertEquals(1, lock.getWaitQueueLength(c)); |
593 |
> |
c.signal(); |
594 |
> |
lock.unlock(); |
595 |
> |
Thread.sleep(SHORT_DELAY_MS); |
596 |
> |
lock.lock(); |
597 |
> |
assertFalse(lock.hasWaiters(c)); |
598 |
> |
assertEquals(0, lock.getWaitQueueLength(c)); |
599 |
> |
lock.unlock(); |
600 |
> |
t.join(SHORT_DELAY_MS); |
601 |
> |
assertFalse(t.isAlive()); |
602 |
|
} |
603 |
|
|
604 |
|
/** |
605 |
|
* getWaitQueueLength returns number of waiting threads |
606 |
|
*/ |
607 |
< |
public void testGetWaitQueueLength() { |
608 |
< |
final ReentrantLock lock = new ReentrantLock(); |
609 |
< |
final ReentrantLock.ConditionObject c = lock.newCondition(); |
610 |
< |
Thread t1 = new Thread(new Runnable() { |
611 |
< |
public void run() { |
612 |
< |
try { |
613 |
< |
lock.lock(); |
614 |
< |
threadAssertFalse(c.hasWaiters()); |
615 |
< |
threadAssertEquals(0, c.getWaitQueueLength()); |
616 |
< |
c.await(); |
617 |
< |
lock.unlock(); |
618 |
< |
} |
619 |
< |
catch(InterruptedException e) { |
620 |
< |
threadUnexpectedException(); |
621 |
< |
} |
622 |
< |
} |
623 |
< |
}); |
624 |
< |
|
625 |
< |
Thread t2 = new Thread(new Runnable() { |
626 |
< |
public void run() { |
627 |
< |
try { |
628 |
< |
lock.lock(); |
629 |
< |
threadAssertTrue(c.hasWaiters()); |
630 |
< |
threadAssertEquals(1, c.getWaitQueueLength()); |
631 |
< |
c.await(); |
632 |
< |
lock.unlock(); |
633 |
< |
} |
634 |
< |
catch(InterruptedException e) { |
635 |
< |
threadUnexpectedException(); |
636 |
< |
} |
637 |
< |
} |
638 |
< |
}); |
639 |
< |
|
640 |
< |
try { |
641 |
< |
t1.start(); |
642 |
< |
Thread.sleep(SHORT_DELAY_MS); |
643 |
< |
t2.start(); |
644 |
< |
Thread.sleep(SHORT_DELAY_MS); |
645 |
< |
lock.lock(); |
543 |
< |
assertTrue(c.hasWaiters()); |
544 |
< |
assertEquals(2, c.getWaitQueueLength()); |
545 |
< |
c.signalAll(); |
546 |
< |
lock.unlock(); |
547 |
< |
Thread.sleep(SHORT_DELAY_MS); |
548 |
< |
lock.lock(); |
549 |
< |
assertFalse(c.hasWaiters()); |
550 |
< |
assertEquals(0, c.getWaitQueueLength()); |
551 |
< |
lock.unlock(); |
552 |
< |
t1.join(SHORT_DELAY_MS); |
553 |
< |
t2.join(SHORT_DELAY_MS); |
554 |
< |
assertFalse(t1.isAlive()); |
555 |
< |
assertFalse(t2.isAlive()); |
556 |
< |
} |
557 |
< |
catch (Exception ex) { |
558 |
< |
unexpectedException(); |
559 |
< |
} |
607 |
> |
public void testGetWaitQueueLength() throws InterruptedException { |
608 |
> |
final ReentrantLock lock = new ReentrantLock(); |
609 |
> |
final Condition c = lock.newCondition(); |
610 |
> |
Thread t1 = new Thread(new CheckedRunnable() { |
611 |
> |
public void realRun() throws InterruptedException { |
612 |
> |
lock.lock(); |
613 |
> |
threadAssertFalse(lock.hasWaiters(c)); |
614 |
> |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
615 |
> |
c.await(); |
616 |
> |
lock.unlock(); |
617 |
> |
}}); |
618 |
> |
|
619 |
> |
Thread t2 = new Thread(new CheckedRunnable() { |
620 |
> |
public void realRun() throws InterruptedException { |
621 |
> |
lock.lock(); |
622 |
> |
threadAssertTrue(lock.hasWaiters(c)); |
623 |
> |
threadAssertEquals(1, lock.getWaitQueueLength(c)); |
624 |
> |
c.await(); |
625 |
> |
lock.unlock(); |
626 |
> |
}}); |
627 |
> |
|
628 |
> |
t1.start(); |
629 |
> |
Thread.sleep(SHORT_DELAY_MS); |
630 |
> |
t2.start(); |
631 |
> |
Thread.sleep(SHORT_DELAY_MS); |
632 |
> |
lock.lock(); |
633 |
> |
assertTrue(lock.hasWaiters(c)); |
634 |
> |
assertEquals(2, lock.getWaitQueueLength(c)); |
635 |
> |
c.signalAll(); |
636 |
> |
lock.unlock(); |
637 |
> |
Thread.sleep(SHORT_DELAY_MS); |
638 |
> |
lock.lock(); |
639 |
> |
assertFalse(lock.hasWaiters(c)); |
640 |
> |
assertEquals(0, lock.getWaitQueueLength(c)); |
641 |
> |
lock.unlock(); |
642 |
> |
t1.join(SHORT_DELAY_MS); |
643 |
> |
t2.join(SHORT_DELAY_MS); |
644 |
> |
assertFalse(t1.isAlive()); |
645 |
> |
assertFalse(t2.isAlive()); |
646 |
|
} |
647 |
|
|
648 |
|
/** |
649 |
|
* getWaitingThreads returns only and all waiting threads |
650 |
|
*/ |
651 |
< |
public void testGetWaitingThreads() { |
652 |
< |
final PublicReentrantLock lock = new PublicReentrantLock(); |
653 |
< |
final PublicReentrantLock.PublicCondition c = (PublicReentrantLock.PublicCondition)lock.newCondition(); |
654 |
< |
Thread t1 = new Thread(new Runnable() { |
655 |
< |
public void run() { |
656 |
< |
try { |
657 |
< |
lock.lock(); |
658 |
< |
threadAssertTrue(c.getWaitingThreads().isEmpty()); |
659 |
< |
c.await(); |
660 |
< |
lock.unlock(); |
661 |
< |
} |
662 |
< |
catch(InterruptedException e) { |
663 |
< |
threadUnexpectedException(); |
664 |
< |
} |
665 |
< |
} |
666 |
< |
}); |
667 |
< |
|
668 |
< |
Thread t2 = new Thread(new Runnable() { |
669 |
< |
public void run() { |
670 |
< |
try { |
671 |
< |
lock.lock(); |
672 |
< |
threadAssertFalse(c.getWaitingThreads().isEmpty()); |
673 |
< |
c.await(); |
674 |
< |
lock.unlock(); |
675 |
< |
} |
676 |
< |
catch(InterruptedException e) { |
677 |
< |
threadUnexpectedException(); |
678 |
< |
} |
679 |
< |
} |
680 |
< |
}); |
651 |
> |
public void testGetWaitingThreads() throws InterruptedException { |
652 |
> |
final PublicReentrantLock lock = new PublicReentrantLock(); |
653 |
> |
final Condition c = lock.newCondition(); |
654 |
> |
Thread t1 = new Thread(new CheckedRunnable() { |
655 |
> |
public void realRun() throws InterruptedException { |
656 |
> |
lock.lock(); |
657 |
> |
threadAssertTrue(lock.getWaitingThreads(c).isEmpty()); |
658 |
> |
c.await(); |
659 |
> |
lock.unlock(); |
660 |
> |
}}); |
661 |
> |
|
662 |
> |
Thread t2 = new Thread(new CheckedRunnable() { |
663 |
> |
public void realRun() throws InterruptedException { |
664 |
> |
lock.lock(); |
665 |
> |
threadAssertFalse(lock.getWaitingThreads(c).isEmpty()); |
666 |
> |
c.await(); |
667 |
> |
lock.unlock(); |
668 |
> |
}}); |
669 |
> |
|
670 |
> |
lock.lock(); |
671 |
> |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
672 |
> |
lock.unlock(); |
673 |
> |
t1.start(); |
674 |
> |
Thread.sleep(SHORT_DELAY_MS); |
675 |
> |
t2.start(); |
676 |
> |
Thread.sleep(SHORT_DELAY_MS); |
677 |
> |
lock.lock(); |
678 |
> |
assertTrue(lock.hasWaiters(c)); |
679 |
> |
assertTrue(lock.getWaitingThreads(c).contains(t1)); |
680 |
> |
assertTrue(lock.getWaitingThreads(c).contains(t2)); |
681 |
> |
c.signalAll(); |
682 |
> |
lock.unlock(); |
683 |
> |
Thread.sleep(SHORT_DELAY_MS); |
684 |
> |
lock.lock(); |
685 |
> |
assertFalse(lock.hasWaiters(c)); |
686 |
> |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
687 |
> |
lock.unlock(); |
688 |
> |
t1.join(SHORT_DELAY_MS); |
689 |
> |
t2.join(SHORT_DELAY_MS); |
690 |
> |
assertFalse(t1.isAlive()); |
691 |
> |
assertFalse(t2.isAlive()); |
692 |
> |
} |
693 |
> |
|
694 |
> |
/** A helper class for uninterruptible wait tests */ |
695 |
> |
class UninterruptibleThread extends Thread { |
696 |
> |
private ReentrantLock lock; |
697 |
> |
private Condition c; |
698 |
> |
|
699 |
> |
public volatile boolean canAwake = false; |
700 |
> |
public volatile boolean interrupted = false; |
701 |
> |
public volatile boolean lockStarted = false; |
702 |
> |
|
703 |
> |
public UninterruptibleThread(ReentrantLock lock, Condition c) { |
704 |
> |
this.lock = lock; |
705 |
> |
this.c = c; |
706 |
> |
} |
707 |
|
|
708 |
< |
try { |
597 |
< |
lock.lock(); |
598 |
< |
assertTrue(c.getWaitingThreads().isEmpty()); |
599 |
< |
lock.unlock(); |
600 |
< |
t1.start(); |
601 |
< |
Thread.sleep(SHORT_DELAY_MS); |
602 |
< |
t2.start(); |
603 |
< |
Thread.sleep(SHORT_DELAY_MS); |
604 |
< |
lock.lock(); |
605 |
< |
assertTrue(c.hasWaiters()); |
606 |
< |
assertTrue(c.getWaitingThreads().contains(t1)); |
607 |
< |
assertTrue(c.getWaitingThreads().contains(t2)); |
608 |
< |
c.signalAll(); |
609 |
< |
lock.unlock(); |
610 |
< |
Thread.sleep(SHORT_DELAY_MS); |
708 |
> |
public synchronized void run() { |
709 |
|
lock.lock(); |
710 |
< |
assertFalse(c.hasWaiters()); |
711 |
< |
assertTrue(c.getWaitingThreads().isEmpty()); |
710 |
> |
lockStarted = true; |
711 |
> |
|
712 |
> |
while (!canAwake) { |
713 |
> |
c.awaitUninterruptibly(); |
714 |
> |
} |
715 |
> |
|
716 |
> |
interrupted = isInterrupted(); |
717 |
|
lock.unlock(); |
615 |
– |
t1.join(SHORT_DELAY_MS); |
616 |
– |
t2.join(SHORT_DELAY_MS); |
617 |
– |
assertFalse(t1.isAlive()); |
618 |
– |
assertFalse(t2.isAlive()); |
619 |
– |
} |
620 |
– |
catch (Exception ex) { |
621 |
– |
unexpectedException(); |
718 |
|
} |
719 |
|
} |
720 |
|
|
721 |
|
/** |
722 |
|
* awaitUninterruptibly doesn't abort on interrupt |
723 |
|
*/ |
724 |
< |
public void testAwaitUninterruptibly() { |
725 |
< |
final ReentrantLock lock = new ReentrantLock(); |
724 |
> |
public void testAwaitUninterruptibly() throws InterruptedException { |
725 |
> |
final ReentrantLock lock = new ReentrantLock(); |
726 |
|
final Condition c = lock.newCondition(); |
727 |
< |
Thread t = new Thread(new Runnable() { |
728 |
< |
public void run() { |
729 |
< |
lock.lock(); |
634 |
< |
c.awaitUninterruptibly(); |
635 |
< |
lock.unlock(); |
636 |
< |
} |
637 |
< |
}); |
727 |
> |
UninterruptibleThread thread = new UninterruptibleThread(lock, c); |
728 |
> |
|
729 |
> |
thread.start(); |
730 |
|
|
731 |
+ |
while (!thread.lockStarted) { |
732 |
+ |
Thread.sleep(100); |
733 |
+ |
} |
734 |
+ |
|
735 |
+ |
lock.lock(); |
736 |
|
try { |
737 |
< |
t.start(); |
738 |
< |
Thread.sleep(SHORT_DELAY_MS); |
642 |
< |
t.interrupt(); |
643 |
< |
lock.lock(); |
737 |
> |
thread.interrupt(); |
738 |
> |
thread.canAwake = true; |
739 |
|
c.signal(); |
740 |
+ |
} finally { |
741 |
|
lock.unlock(); |
646 |
– |
assert(t.isInterrupted()); |
647 |
– |
t.join(SHORT_DELAY_MS); |
648 |
– |
assertFalse(t.isAlive()); |
649 |
– |
} |
650 |
– |
catch (Exception ex) { |
651 |
– |
unexpectedException(); |
742 |
|
} |
743 |
+ |
|
744 |
+ |
thread.join(); |
745 |
+ |
assertTrue(thread.interrupted); |
746 |
+ |
assertFalse(thread.isAlive()); |
747 |
|
} |
748 |
|
|
749 |
|
/** |
750 |
|
* await is interruptible |
751 |
|
*/ |
752 |
< |
public void testAwait_Interrupt() { |
753 |
< |
final ReentrantLock lock = new ReentrantLock(); |
752 |
> |
public void testAwait_Interrupt() throws InterruptedException { |
753 |
> |
final ReentrantLock lock = new ReentrantLock(); |
754 |
|
final Condition c = lock.newCondition(); |
755 |
< |
Thread t = new Thread(new Runnable() { |
756 |
< |
public void run() { |
757 |
< |
try { |
758 |
< |
lock.lock(); |
759 |
< |
c.await(); |
760 |
< |
lock.unlock(); |
761 |
< |
threadShouldThrow(); |
762 |
< |
} |
763 |
< |
catch(InterruptedException success) { |
764 |
< |
} |
765 |
< |
} |
672 |
< |
}); |
673 |
< |
|
674 |
< |
try { |
675 |
< |
t.start(); |
676 |
< |
Thread.sleep(SHORT_DELAY_MS); |
677 |
< |
t.interrupt(); |
678 |
< |
t.join(SHORT_DELAY_MS); |
679 |
< |
assertFalse(t.isAlive()); |
680 |
< |
} |
681 |
< |
catch (Exception ex) { |
682 |
< |
unexpectedException(); |
683 |
< |
} |
755 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
756 |
> |
public void realRun() throws InterruptedException { |
757 |
> |
lock.lock(); |
758 |
> |
c.await(); |
759 |
> |
}}); |
760 |
> |
|
761 |
> |
t.start(); |
762 |
> |
Thread.sleep(SHORT_DELAY_MS); |
763 |
> |
t.interrupt(); |
764 |
> |
t.join(SHORT_DELAY_MS); |
765 |
> |
assertFalse(t.isAlive()); |
766 |
|
} |
767 |
|
|
768 |
|
/** |
769 |
|
* awaitNanos is interruptible |
770 |
|
*/ |
771 |
< |
public void testAwaitNanos_Interrupt() { |
772 |
< |
final ReentrantLock lock = new ReentrantLock(); |
771 |
> |
public void testAwaitNanos_Interrupt() throws InterruptedException { |
772 |
> |
final ReentrantLock lock = new ReentrantLock(); |
773 |
|
final Condition c = lock.newCondition(); |
774 |
< |
Thread t = new Thread(new Runnable() { |
775 |
< |
public void run() { |
776 |
< |
try { |
777 |
< |
lock.lock(); |
778 |
< |
c.awaitNanos(SHORT_DELAY_MS * 2 * 1000000); |
779 |
< |
lock.unlock(); |
780 |
< |
threadShouldThrow(); |
781 |
< |
} |
782 |
< |
catch(InterruptedException success) { |
783 |
< |
} |
784 |
< |
} |
703 |
< |
}); |
704 |
< |
|
705 |
< |
try { |
706 |
< |
t.start(); |
707 |
< |
Thread.sleep(SHORT_DELAY_MS); |
708 |
< |
t.interrupt(); |
709 |
< |
t.join(SHORT_DELAY_MS); |
710 |
< |
assertFalse(t.isAlive()); |
711 |
< |
} |
712 |
< |
catch (Exception ex) { |
713 |
< |
unexpectedException(); |
714 |
< |
} |
774 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
775 |
> |
public void realRun() throws InterruptedException { |
776 |
> |
lock.lock(); |
777 |
> |
c.awaitNanos(MILLISECONDS.toNanos(LONG_DELAY_MS)); |
778 |
> |
}}); |
779 |
> |
|
780 |
> |
t.start(); |
781 |
> |
Thread.sleep(SHORT_DELAY_MS); |
782 |
> |
t.interrupt(); |
783 |
> |
t.join(SHORT_DELAY_MS); |
784 |
> |
assertFalse(t.isAlive()); |
785 |
|
} |
786 |
|
|
787 |
|
/** |
788 |
|
* awaitUntil is interruptible |
789 |
|
*/ |
790 |
< |
public void testAwaitUntil_Interrupt() { |
791 |
< |
final ReentrantLock lock = new ReentrantLock(); |
790 |
> |
public void testAwaitUntil_Interrupt() throws InterruptedException { |
791 |
> |
final ReentrantLock lock = new ReentrantLock(); |
792 |
|
final Condition c = lock.newCondition(); |
793 |
< |
Thread t = new Thread(new Runnable() { |
794 |
< |
public void run() { |
795 |
< |
try { |
796 |
< |
lock.lock(); |
797 |
< |
java.util.Date d = new java.util.Date(); |
798 |
< |
c.awaitUntil(new java.util.Date(d.getTime() + 10000)); |
799 |
< |
lock.unlock(); |
800 |
< |
threadShouldThrow(); |
801 |
< |
} |
802 |
< |
catch(InterruptedException success) { |
803 |
< |
} |
804 |
< |
} |
735 |
< |
}); |
736 |
< |
|
737 |
< |
try { |
738 |
< |
t.start(); |
739 |
< |
Thread.sleep(SHORT_DELAY_MS); |
740 |
< |
t.interrupt(); |
741 |
< |
t.join(SHORT_DELAY_MS); |
742 |
< |
assertFalse(t.isAlive()); |
743 |
< |
} |
744 |
< |
catch (Exception ex) { |
745 |
< |
unexpectedException(); |
746 |
< |
} |
793 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
794 |
> |
public void realRun() throws InterruptedException { |
795 |
> |
lock.lock(); |
796 |
> |
java.util.Date d = new java.util.Date(); |
797 |
> |
c.awaitUntil(new java.util.Date(d.getTime() + 10000)); |
798 |
> |
}}); |
799 |
> |
|
800 |
> |
t.start(); |
801 |
> |
Thread.sleep(SHORT_DELAY_MS); |
802 |
> |
t.interrupt(); |
803 |
> |
t.join(SHORT_DELAY_MS); |
804 |
> |
assertFalse(t.isAlive()); |
805 |
|
} |
806 |
|
|
807 |
|
/** |
808 |
|
* signalAll wakes up all threads |
809 |
|
*/ |
810 |
< |
public void testSignalAll() { |
811 |
< |
final ReentrantLock lock = new ReentrantLock(); |
810 |
> |
public void testSignalAll() throws InterruptedException { |
811 |
> |
final ReentrantLock lock = new ReentrantLock(); |
812 |
|
final Condition c = lock.newCondition(); |
813 |
< |
Thread t1 = new Thread(new Runnable() { |
814 |
< |
public void run() { |
815 |
< |
try { |
816 |
< |
lock.lock(); |
817 |
< |
c.await(); |
818 |
< |
lock.unlock(); |
819 |
< |
} |
820 |
< |
catch(InterruptedException e) { |
821 |
< |
threadUnexpectedException(); |
822 |
< |
} |
823 |
< |
} |
824 |
< |
}); |
825 |
< |
|
826 |
< |
Thread t2 = new Thread(new Runnable() { |
827 |
< |
public void run() { |
828 |
< |
try { |
829 |
< |
lock.lock(); |
830 |
< |
c.await(); |
831 |
< |
lock.unlock(); |
832 |
< |
} |
833 |
< |
catch(InterruptedException e) { |
834 |
< |
threadUnexpectedException(); |
835 |
< |
} |
836 |
< |
} |
837 |
< |
}); |
838 |
< |
|
839 |
< |
try { |
840 |
< |
t1.start(); |
841 |
< |
t2.start(); |
842 |
< |
Thread.sleep(SHORT_DELAY_MS); |
843 |
< |
lock.lock(); |
844 |
< |
c.signalAll(); |
845 |
< |
lock.unlock(); |
846 |
< |
t1.join(SHORT_DELAY_MS); |
847 |
< |
t2.join(SHORT_DELAY_MS); |
848 |
< |
assertFalse(t1.isAlive()); |
849 |
< |
assertFalse(t2.isAlive()); |
850 |
< |
} |
851 |
< |
catch (Exception ex) { |
852 |
< |
unexpectedException(); |
853 |
< |
} |
813 |
> |
Thread t1 = new Thread(new CheckedRunnable() { |
814 |
> |
public void realRun() throws InterruptedException { |
815 |
> |
lock.lock(); |
816 |
> |
c.await(); |
817 |
> |
lock.unlock(); |
818 |
> |
}}); |
819 |
> |
|
820 |
> |
Thread t2 = new Thread(new CheckedRunnable() { |
821 |
> |
public void realRun() throws InterruptedException { |
822 |
> |
lock.lock(); |
823 |
> |
c.await(); |
824 |
> |
lock.unlock(); |
825 |
> |
}}); |
826 |
> |
|
827 |
> |
t1.start(); |
828 |
> |
t2.start(); |
829 |
> |
Thread.sleep(SHORT_DELAY_MS); |
830 |
> |
lock.lock(); |
831 |
> |
c.signalAll(); |
832 |
> |
lock.unlock(); |
833 |
> |
t1.join(SHORT_DELAY_MS); |
834 |
> |
t2.join(SHORT_DELAY_MS); |
835 |
> |
assertFalse(t1.isAlive()); |
836 |
> |
assertFalse(t2.isAlive()); |
837 |
> |
} |
838 |
> |
|
839 |
> |
/** |
840 |
> |
* await after multiple reentrant locking preserves lock count |
841 |
> |
*/ |
842 |
> |
public void testAwaitLockCount() throws InterruptedException { |
843 |
> |
final ReentrantLock lock = new ReentrantLock(); |
844 |
> |
final Condition c = lock.newCondition(); |
845 |
> |
Thread t1 = new Thread(new CheckedRunnable() { |
846 |
> |
public void realRun() throws InterruptedException { |
847 |
> |
lock.lock(); |
848 |
> |
threadAssertEquals(1, lock.getHoldCount()); |
849 |
> |
c.await(); |
850 |
> |
threadAssertEquals(1, lock.getHoldCount()); |
851 |
> |
lock.unlock(); |
852 |
> |
}}); |
853 |
> |
|
854 |
> |
Thread t2 = new Thread(new CheckedRunnable() { |
855 |
> |
public void realRun() throws InterruptedException { |
856 |
> |
lock.lock(); |
857 |
> |
lock.lock(); |
858 |
> |
threadAssertEquals(2, lock.getHoldCount()); |
859 |
> |
c.await(); |
860 |
> |
threadAssertEquals(2, lock.getHoldCount()); |
861 |
> |
lock.unlock(); |
862 |
> |
lock.unlock(); |
863 |
> |
}}); |
864 |
> |
|
865 |
> |
t1.start(); |
866 |
> |
t2.start(); |
867 |
> |
Thread.sleep(SHORT_DELAY_MS); |
868 |
> |
lock.lock(); |
869 |
> |
c.signalAll(); |
870 |
> |
lock.unlock(); |
871 |
> |
t1.join(SHORT_DELAY_MS); |
872 |
> |
t2.join(SHORT_DELAY_MS); |
873 |
> |
assertFalse(t1.isAlive()); |
874 |
> |
assertFalse(t2.isAlive()); |
875 |
|
} |
876 |
|
|
877 |
|
/** |
878 |
|
* A serialized lock deserializes as unlocked |
879 |
|
*/ |
880 |
< |
public void testSerialization() { |
880 |
> |
public void testSerialization() throws Exception { |
881 |
|
ReentrantLock l = new ReentrantLock(); |
882 |
|
l.lock(); |
883 |
|
l.unlock(); |
884 |
|
|
885 |
< |
try { |
886 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
887 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
888 |
< |
out.writeObject(l); |
889 |
< |
out.close(); |
890 |
< |
|
891 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
892 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
893 |
< |
ReentrantLock r = (ReentrantLock) in.readObject(); |
894 |
< |
r.lock(); |
895 |
< |
r.unlock(); |
896 |
< |
} catch(Exception e){ |
897 |
< |
e.printStackTrace(); |
898 |
< |
unexpectedException(); |
899 |
< |
} |
885 |
> |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
886 |
> |
ObjectOutputStream out = |
887 |
> |
new ObjectOutputStream(new BufferedOutputStream(bout)); |
888 |
> |
out.writeObject(l); |
889 |
> |
out.close(); |
890 |
> |
|
891 |
> |
ByteArrayInputStream bin = |
892 |
> |
new ByteArrayInputStream(bout.toByteArray()); |
893 |
> |
ObjectInputStream in = |
894 |
> |
new ObjectInputStream(new BufferedInputStream(bin)); |
895 |
> |
ReentrantLock r = (ReentrantLock) in.readObject(); |
896 |
> |
r.lock(); |
897 |
> |
r.unlock(); |
898 |
> |
} |
899 |
> |
|
900 |
> |
/** |
901 |
> |
* toString indicates current lock state |
902 |
> |
*/ |
903 |
> |
public void testToString() { |
904 |
> |
ReentrantLock lock = new ReentrantLock(); |
905 |
> |
String us = lock.toString(); |
906 |
> |
assertTrue(us.indexOf("Unlocked") >= 0); |
907 |
> |
lock.lock(); |
908 |
> |
String ls = lock.toString(); |
909 |
> |
assertTrue(ls.indexOf("Locked") >= 0); |
910 |
|
} |
911 |
|
|
912 |
|
} |