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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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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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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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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.io.*; |
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import java.util.*; |
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public class ReentrantReadWriteLockTest 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(ReentrantReadWriteLockTest.class); |
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return new TestSuite(ReentrantReadWriteLockTest.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 ReentrantReadWriteLock lock; |
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InterruptibleLockRunnable(ReentrantReadWriteLock l) { lock = l; } |
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public void run() { |
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try { |
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lock.writeLock().lockInterruptibly(); |
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} catch(InterruptedException success){} |
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public void realRun() throws InterruptedException { |
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lock.writeLock().lockInterruptibly(); |
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} |
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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 ReentrantReadWriteLock lock; |
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InterruptedLockRunnable(ReentrantReadWriteLock l) { lock = l; } |
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public void run() { |
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try { |
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lock.writeLock().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.writeLock().lockInterruptibly(); |
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} |
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} |
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|
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*/ |
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static class PublicReentrantReadWriteLock extends ReentrantReadWriteLock { |
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PublicReentrantReadWriteLock() { 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 Collection<Thread> getWaitingThreads(Condition c) { |
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return super.getWaitingThreads(c); |
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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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} |
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|
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/** |
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* Releases write lock, checking that it had a hold count of 1. |
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*/ |
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void releaseWriteLock(ReentrantReadWriteLock lock) { |
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ReentrantReadWriteLock.WriteLock writeLock = lock.writeLock(); |
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assertTrue(writeLock.isHeldByCurrentThread()); |
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writeLock.unlock(); |
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assertFalse(writeLock.isHeldByCurrentThread()); |
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} |
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|
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/** |
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* Constructor sets given fairness, and is in unlocked state |
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*/ |
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public void testConstructor() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
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public void testConstructor() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
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assertFalse(rl.isFair()); |
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assertFalse(rl.isWriteLocked()); |
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assertEquals(0, rl.getReadLockCount()); |
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ReentrantReadWriteLock r2 = new ReentrantReadWriteLock(true); |
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ReentrantReadWriteLock r2 = new ReentrantReadWriteLock(true); |
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assertTrue(r2.isFair()); |
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assertFalse(r2.isWriteLocked()); |
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assertEquals(0, r2.getReadLockCount()); |
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ReentrantReadWriteLock r3 = new ReentrantReadWriteLock(false); |
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assertFalse(r3.isFair()); |
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assertFalse(r3.isWriteLocked()); |
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assertEquals(0, r3.getReadLockCount()); |
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} |
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|
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/** |
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* write-locking and read-locking an unlocked lock succeed |
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*/ |
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public void testLock() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
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public void testLock() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
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rl.writeLock().lock(); |
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assertTrue(rl.isWriteLocked()); |
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assertTrue(rl.isWriteLockedByCurrentThread()); |
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assertTrue(rl.writeLock().isHeldByCurrentThread()); |
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assertEquals(0, rl.getReadLockCount()); |
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rl.writeLock().unlock(); |
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assertFalse(rl.isWriteLocked()); |
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assertFalse(rl.isWriteLockedByCurrentThread()); |
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assertFalse(rl.writeLock().isHeldByCurrentThread()); |
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assertEquals(0, rl.getReadLockCount()); |
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rl.readLock().lock(); |
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assertFalse(rl.isWriteLocked()); |
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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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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(true); |
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public void testFairLock() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(true); |
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rl.writeLock().lock(); |
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assertTrue(rl.isWriteLocked()); |
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assertTrue(rl.isWriteLockedByCurrentThread()); |
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assertTrue(rl.writeLock().isHeldByCurrentThread()); |
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assertEquals(0, rl.getReadLockCount()); |
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rl.writeLock().unlock(); |
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assertFalse(rl.isWriteLocked()); |
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assertFalse(rl.isWriteLockedByCurrentThread()); |
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assertFalse(rl.writeLock().isHeldByCurrentThread()); |
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assertEquals(0, rl.getReadLockCount()); |
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rl.readLock().lock(); |
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assertFalse(rl.isWriteLocked()); |
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/** |
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* getWriteHoldCount returns number of recursive holds |
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*/ |
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public void testGetWriteHoldCount() { |
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ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
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for (int i = 1; i <= SIZE; i++) { |
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lock.writeLock().lock(); |
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assertEquals(i,lock.getWriteHoldCount()); |
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} |
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for (int i = SIZE; i > 0; i--) { |
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lock.writeLock().unlock(); |
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assertEquals(i-1,lock.getWriteHoldCount()); |
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} |
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} |
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|
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/** |
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* WriteLock.getHoldCount returns number of recursive holds |
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*/ |
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public void testGetHoldCount() { |
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ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
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for(int i = 1; i <= SIZE; i++) { |
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lock.writeLock().lock(); |
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assertEquals(i,lock.getWriteHoldCount()); |
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} |
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for(int i = SIZE; i > 0; i--) { |
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lock.writeLock().unlock(); |
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assertEquals(i-1,lock.getWriteHoldCount()); |
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} |
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ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
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for (int i = 1; i <= SIZE; i++) { |
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lock.writeLock().lock(); |
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assertEquals(i,lock.writeLock().getHoldCount()); |
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} |
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for (int i = SIZE; i > 0; i--) { |
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lock.writeLock().unlock(); |
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assertEquals(i-1,lock.writeLock().getHoldCount()); |
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} |
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} |
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|
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|
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/** |
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* getReadHoldCount returns number of recursive holds |
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*/ |
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public void testGetReadHoldCount() { |
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ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
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for (int i = 1; i <= SIZE; i++) { |
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lock.readLock().lock(); |
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assertEquals(i,lock.getReadHoldCount()); |
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} |
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for (int i = SIZE; i > 0; i--) { |
180 |
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lock.readLock().unlock(); |
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assertEquals(i-1,lock.getReadHoldCount()); |
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} |
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} |
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|
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|
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/** |
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* write-unlocking an unlocked lock throws IllegalMonitorStateException |
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*/ |
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public void testUnlock_IllegalMonitorStateException() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
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try { |
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rl.writeLock().unlock(); |
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shouldThrow(); |
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} catch(IllegalMonitorStateException success){} |
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public void testUnlock_IllegalMonitorStateException() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
191 |
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try { |
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rl.writeLock().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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/** |
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* write-lockInterruptibly is interruptible |
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*/ |
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public void testWriteLockInterruptibly_Interrupted() { |
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final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
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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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lock.writeLock().lockInterruptibly(); |
207 |
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lock.writeLock().unlock(); |
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lock.writeLock().lockInterruptibly(); |
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lock.writeLock().unlock(); |
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< |
} catch(InterruptedException success){} |
211 |
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} |
212 |
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}); |
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try { |
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lock.writeLock().lock(); |
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t.start(); |
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t.interrupt(); |
173 |
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lock.writeLock().unlock(); |
174 |
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t.join(); |
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} catch(Exception e){ |
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unexpectedException(); |
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} |
178 |
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} |
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public void testWriteLockInterruptibly_Interrupted() throws Exception { |
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final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
203 |
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lock.writeLock().lock(); |
204 |
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Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
205 |
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public void realRun() throws InterruptedException { |
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lock.writeLock().lockInterruptibly(); |
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}}); |
208 |
> |
|
209 |
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Thread.sleep(SHORT_DELAY_MS); |
210 |
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t.interrupt(); |
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awaitTermination(t, LONG_DELAY_MS); |
212 |
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releaseWriteLock(lock); |
213 |
> |
} |
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|
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/** |
216 |
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* timed write-tryLock is interruptible |
217 |
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*/ |
218 |
< |
public void testWriteTryLock_Interrupted() { |
219 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
220 |
< |
lock.writeLock().lock(); |
221 |
< |
Thread t = new Thread(new Runnable() { |
222 |
< |
public void run() { |
223 |
< |
try { |
224 |
< |
lock.writeLock().tryLock(1000,TimeUnit.MILLISECONDS); |
225 |
< |
} catch(InterruptedException success){} |
226 |
< |
} |
227 |
< |
}); |
228 |
< |
try { |
229 |
< |
t.start(); |
195 |
< |
t.interrupt(); |
196 |
< |
lock.writeLock().unlock(); |
197 |
< |
t.join(); |
198 |
< |
} catch(Exception e){ |
199 |
< |
unexpectedException(); |
200 |
< |
} |
218 |
> |
public void testWriteTryLock_Interrupted() throws InterruptedException { |
219 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
220 |
> |
lock.writeLock().lock(); |
221 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
222 |
> |
public void realRun() throws InterruptedException { |
223 |
> |
lock.writeLock().tryLock(SMALL_DELAY_MS, MILLISECONDS); |
224 |
> |
}}); |
225 |
> |
|
226 |
> |
Thread.sleep(SHORT_DELAY_MS); |
227 |
> |
t.interrupt(); |
228 |
> |
awaitTermination(t, LONG_DELAY_MS); |
229 |
> |
releaseWriteLock(lock); |
230 |
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} |
231 |
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|
232 |
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/** |
233 |
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* read-lockInterruptibly is interruptible |
234 |
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*/ |
235 |
< |
public void testReadLockInterruptibly_Interrupted() { |
236 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
237 |
< |
lock.writeLock().lock(); |
238 |
< |
Thread t = new Thread(new Runnable() { |
239 |
< |
public void run() { |
240 |
< |
try { |
241 |
< |
lock.readLock().lockInterruptibly(); |
242 |
< |
} catch(InterruptedException success){} |
243 |
< |
} |
244 |
< |
}); |
245 |
< |
try { |
246 |
< |
t.start(); |
247 |
< |
t.interrupt(); |
219 |
< |
lock.writeLock().unlock(); |
220 |
< |
t.join(); |
221 |
< |
} catch(Exception e){ |
222 |
< |
unexpectedException(); |
223 |
< |
} |
224 |
< |
} |
235 |
> |
public void testReadLockInterruptibly_Interrupted() throws InterruptedException { |
236 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
237 |
> |
lock.writeLock().lock(); |
238 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
239 |
> |
public void realRun() throws InterruptedException { |
240 |
> |
lock.readLock().lockInterruptibly(); |
241 |
> |
}}); |
242 |
> |
|
243 |
> |
Thread.sleep(SHORT_DELAY_MS); |
244 |
> |
t.interrupt(); |
245 |
> |
awaitTermination(t, LONG_DELAY_MS); |
246 |
> |
releaseWriteLock(lock); |
247 |
> |
} |
248 |
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|
249 |
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/** |
250 |
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* timed read-tryLock is interruptible |
251 |
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*/ |
252 |
< |
public void testReadTryLock_Interrupted() { |
253 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
254 |
< |
lock.writeLock().lock(); |
255 |
< |
Thread t = new Thread(new Runnable() { |
256 |
< |
public void run() { |
257 |
< |
try { |
258 |
< |
lock.readLock().tryLock(1000,TimeUnit.MILLISECONDS); |
259 |
< |
threadShouldThrow(); |
260 |
< |
} catch(InterruptedException success){} |
261 |
< |
} |
262 |
< |
}); |
263 |
< |
try { |
241 |
< |
t.start(); |
242 |
< |
t.interrupt(); |
243 |
< |
t.join(); |
244 |
< |
} catch(Exception e){ |
245 |
< |
unexpectedException(); |
246 |
< |
} |
252 |
> |
public void testReadTryLock_Interrupted() throws InterruptedException { |
253 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
254 |
> |
lock.writeLock().lock(); |
255 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
256 |
> |
public void realRun() throws InterruptedException { |
257 |
> |
lock.readLock().tryLock(LONG_DELAY_MS, MILLISECONDS); |
258 |
> |
}}); |
259 |
> |
|
260 |
> |
Thread.sleep(SHORT_DELAY_MS); |
261 |
> |
t.interrupt(); |
262 |
> |
awaitTermination(t, LONG_DELAY_MS); |
263 |
> |
releaseWriteLock(lock); |
264 |
|
} |
265 |
|
|
266 |
< |
|
266 |
> |
|
267 |
|
/** |
268 |
|
* write-tryLock fails if locked |
269 |
|
*/ |
270 |
< |
public void testWriteTryLockWhenLocked() { |
271 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
272 |
< |
lock.writeLock().lock(); |
273 |
< |
Thread t = new Thread(new Runnable() { |
274 |
< |
public void run() { |
275 |
< |
threadAssertFalse(lock.writeLock().tryLock()); |
276 |
< |
} |
277 |
< |
}); |
278 |
< |
try { |
279 |
< |
t.start(); |
280 |
< |
t.join(); |
264 |
< |
lock.writeLock().unlock(); |
265 |
< |
} catch(Exception e){ |
266 |
< |
unexpectedException(); |
267 |
< |
} |
268 |
< |
} |
270 |
> |
public void testWriteTryLockWhenLocked() throws InterruptedException { |
271 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
272 |
> |
lock.writeLock().lock(); |
273 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
274 |
> |
public void realRun() { |
275 |
> |
assertFalse(lock.writeLock().tryLock()); |
276 |
> |
}}); |
277 |
> |
|
278 |
> |
awaitTermination(t, LONG_DELAY_MS); |
279 |
> |
releaseWriteLock(lock); |
280 |
> |
} |
281 |
|
|
282 |
|
/** |
283 |
|
* read-tryLock fails if locked |
284 |
|
*/ |
285 |
< |
public void testReadTryLockWhenLocked() { |
286 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
287 |
< |
lock.writeLock().lock(); |
288 |
< |
Thread t = new Thread(new Runnable() { |
289 |
< |
public void run() { |
290 |
< |
threadAssertFalse(lock.readLock().tryLock()); |
291 |
< |
} |
292 |
< |
}); |
293 |
< |
try { |
294 |
< |
t.start(); |
295 |
< |
t.join(); |
284 |
< |
lock.writeLock().unlock(); |
285 |
< |
} catch(Exception e){ |
286 |
< |
unexpectedException(); |
287 |
< |
} |
288 |
< |
} |
285 |
> |
public void testReadTryLockWhenLocked() throws InterruptedException { |
286 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
287 |
> |
lock.writeLock().lock(); |
288 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
289 |
> |
public void realRun() { |
290 |
> |
assertFalse(lock.readLock().tryLock()); |
291 |
> |
}}); |
292 |
> |
|
293 |
> |
awaitTermination(t, LONG_DELAY_MS); |
294 |
> |
releaseWriteLock(lock); |
295 |
> |
} |
296 |
|
|
297 |
|
/** |
298 |
|
* Multiple threads can hold a read lock when not write-locked |
299 |
|
*/ |
300 |
< |
public void testMultipleReadLocks() { |
301 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
302 |
< |
lock.readLock().lock(); |
303 |
< |
Thread t = new Thread(new Runnable() { |
304 |
< |
public void run() { |
305 |
< |
threadAssertTrue(lock.readLock().tryLock()); |
306 |
< |
lock.readLock().unlock(); |
307 |
< |
} |
308 |
< |
}); |
309 |
< |
try { |
310 |
< |
t.start(); |
311 |
< |
t.join(); |
305 |
< |
lock.readLock().unlock(); |
306 |
< |
} catch(Exception e){ |
307 |
< |
unexpectedException(); |
308 |
< |
} |
309 |
< |
} |
300 |
> |
public void testMultipleReadLocks() throws InterruptedException { |
301 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
302 |
> |
lock.readLock().lock(); |
303 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
304 |
> |
public void realRun() { |
305 |
> |
assertTrue(lock.readLock().tryLock()); |
306 |
> |
lock.readLock().unlock(); |
307 |
> |
}}); |
308 |
> |
|
309 |
> |
awaitTermination(t, LONG_DELAY_MS); |
310 |
> |
lock.readLock().unlock(); |
311 |
> |
} |
312 |
|
|
313 |
|
/** |
314 |
|
* A writelock succeeds after reading threads unlock |
315 |
|
*/ |
316 |
< |
public void testWriteAfterMultipleReadLocks() { |
317 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
318 |
< |
lock.readLock().lock(); |
319 |
< |
Thread t1 = new Thread(new Runnable() { |
320 |
< |
public void run() { |
321 |
< |
lock.readLock().lock(); |
322 |
< |
lock.readLock().unlock(); |
323 |
< |
} |
324 |
< |
}); |
325 |
< |
Thread t2 = new Thread(new Runnable() { |
326 |
< |
public void run() { |
327 |
< |
lock.writeLock().lock(); |
328 |
< |
lock.writeLock().unlock(); |
329 |
< |
} |
330 |
< |
}); |
331 |
< |
|
332 |
< |
try { |
333 |
< |
t1.start(); |
334 |
< |
t2.start(); |
333 |
< |
Thread.sleep(SHORT_DELAY_MS); |
334 |
< |
lock.readLock().unlock(); |
335 |
< |
t1.join(MEDIUM_DELAY_MS); |
336 |
< |
t2.join(MEDIUM_DELAY_MS); |
337 |
< |
assertTrue(!t1.isAlive()); |
338 |
< |
assertTrue(!t2.isAlive()); |
339 |
< |
|
340 |
< |
} catch(Exception e){ |
341 |
< |
unexpectedException(); |
342 |
< |
} |
343 |
< |
} |
316 |
> |
public void testWriteAfterMultipleReadLocks() throws InterruptedException { |
317 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
318 |
> |
lock.readLock().lock(); |
319 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
320 |
> |
public void realRun() { |
321 |
> |
lock.readLock().lock(); |
322 |
> |
lock.readLock().unlock(); |
323 |
> |
}}); |
324 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
325 |
> |
public void realRun() { |
326 |
> |
lock.writeLock().lock(); |
327 |
> |
lock.writeLock().unlock(); |
328 |
> |
}}); |
329 |
> |
|
330 |
> |
Thread.sleep(SHORT_DELAY_MS); |
331 |
> |
lock.readLock().unlock(); |
332 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
333 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
334 |
> |
} |
335 |
|
|
336 |
|
/** |
337 |
|
* Readlocks succeed after a writing thread unlocks |
338 |
|
*/ |
339 |
< |
public void testReadAfterWriteLock() { |
340 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
341 |
< |
lock.writeLock().lock(); |
342 |
< |
Thread t1 = new Thread(new Runnable() { |
343 |
< |
public void run() { |
344 |
< |
lock.readLock().lock(); |
345 |
< |
lock.readLock().unlock(); |
346 |
< |
} |
347 |
< |
}); |
348 |
< |
Thread t2 = new Thread(new Runnable() { |
349 |
< |
public void run() { |
350 |
< |
lock.readLock().lock(); |
351 |
< |
lock.readLock().unlock(); |
352 |
< |
} |
353 |
< |
}); |
354 |
< |
|
355 |
< |
try { |
356 |
< |
t1.start(); |
357 |
< |
t2.start(); |
358 |
< |
Thread.sleep(SHORT_DELAY_MS); |
359 |
< |
lock.writeLock().unlock(); |
360 |
< |
t1.join(MEDIUM_DELAY_MS); |
361 |
< |
t2.join(MEDIUM_DELAY_MS); |
362 |
< |
assertTrue(!t1.isAlive()); |
363 |
< |
assertTrue(!t2.isAlive()); |
364 |
< |
|
365 |
< |
} catch(Exception e){ |
366 |
< |
unexpectedException(); |
367 |
< |
} |
368 |
< |
} |
339 |
> |
public void testReadAfterWriteLock() throws InterruptedException { |
340 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
341 |
> |
lock.writeLock().lock(); |
342 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
343 |
> |
public void realRun() { |
344 |
> |
lock.readLock().lock(); |
345 |
> |
lock.readLock().unlock(); |
346 |
> |
}}); |
347 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
348 |
> |
public void realRun() { |
349 |
> |
lock.readLock().lock(); |
350 |
> |
lock.readLock().unlock(); |
351 |
> |
}}); |
352 |
> |
|
353 |
> |
Thread.sleep(SHORT_DELAY_MS); |
354 |
> |
assertTrue(t1.isAlive()); |
355 |
> |
assertTrue(t2.isAlive()); |
356 |
> |
releaseWriteLock(lock); |
357 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
358 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
359 |
> |
} |
360 |
> |
|
361 |
> |
/** |
362 |
> |
* Read trylock succeeds if write locked by current thread |
363 |
> |
*/ |
364 |
> |
public void testReadHoldingWriteLock() { |
365 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
366 |
> |
lock.writeLock().lock(); |
367 |
> |
assertTrue(lock.readLock().tryLock()); |
368 |
> |
lock.readLock().unlock(); |
369 |
> |
lock.writeLock().unlock(); |
370 |
> |
} |
371 |
> |
|
372 |
> |
/** |
373 |
> |
* Read lock succeeds if write locked by current thread even if |
374 |
> |
* other threads are waiting for readlock |
375 |
> |
*/ |
376 |
> |
public void testReadHoldingWriteLock2() throws InterruptedException { |
377 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
378 |
> |
lock.writeLock().lock(); |
379 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
380 |
> |
public void realRun() { |
381 |
> |
lock.readLock().lock(); |
382 |
> |
lock.readLock().unlock(); |
383 |
> |
}}); |
384 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
385 |
> |
public void realRun() { |
386 |
> |
lock.readLock().lock(); |
387 |
> |
lock.readLock().unlock(); |
388 |
> |
}}); |
389 |
> |
|
390 |
> |
lock.readLock().lock(); |
391 |
> |
lock.readLock().unlock(); |
392 |
> |
Thread.sleep(SHORT_DELAY_MS); |
393 |
> |
lock.readLock().lock(); |
394 |
> |
lock.readLock().unlock(); |
395 |
> |
lock.writeLock().unlock(); |
396 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
397 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
398 |
> |
} |
399 |
> |
|
400 |
> |
/** |
401 |
> |
* Read lock succeeds if write locked by current thread even if |
402 |
> |
* other threads are waiting for writelock |
403 |
> |
*/ |
404 |
> |
public void testReadHoldingWriteLock3() throws InterruptedException { |
405 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
406 |
> |
lock.writeLock().lock(); |
407 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
408 |
> |
public void realRun() { |
409 |
> |
lock.writeLock().lock(); |
410 |
> |
lock.writeLock().unlock(); |
411 |
> |
}}); |
412 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
413 |
> |
public void realRun() { |
414 |
> |
lock.writeLock().lock(); |
415 |
> |
lock.writeLock().unlock(); |
416 |
> |
}}); |
417 |
> |
|
418 |
> |
lock.readLock().lock(); |
419 |
> |
lock.readLock().unlock(); |
420 |
> |
Thread.sleep(SHORT_DELAY_MS); |
421 |
> |
lock.readLock().lock(); |
422 |
> |
lock.readLock().unlock(); |
423 |
> |
lock.writeLock().unlock(); |
424 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
425 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
426 |
> |
} |
427 |
> |
|
428 |
> |
|
429 |
> |
/** |
430 |
> |
* Write lock succeeds if write locked by current thread even if |
431 |
> |
* other threads are waiting for writelock |
432 |
> |
*/ |
433 |
> |
public void testWriteHoldingWriteLock4() throws InterruptedException { |
434 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
435 |
> |
lock.writeLock().lock(); |
436 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
437 |
> |
public void realRun() { |
438 |
> |
lock.writeLock().lock(); |
439 |
> |
lock.writeLock().unlock(); |
440 |
> |
}}); |
441 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
442 |
> |
public void realRun() { |
443 |
> |
lock.writeLock().lock(); |
444 |
> |
lock.writeLock().unlock(); |
445 |
> |
}}); |
446 |
> |
|
447 |
> |
lock.writeLock().lock(); |
448 |
> |
lock.writeLock().unlock(); |
449 |
> |
Thread.sleep(SHORT_DELAY_MS); |
450 |
> |
lock.writeLock().lock(); |
451 |
> |
lock.writeLock().unlock(); |
452 |
> |
lock.writeLock().unlock(); |
453 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
454 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
455 |
> |
} |
456 |
> |
|
457 |
> |
|
458 |
> |
/** |
459 |
> |
* Fair Read trylock succeeds if write locked by current thread |
460 |
> |
*/ |
461 |
> |
public void testReadHoldingWriteLockFair() { |
462 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
463 |
> |
lock.writeLock().lock(); |
464 |
> |
assertTrue(lock.readLock().tryLock()); |
465 |
> |
lock.readLock().unlock(); |
466 |
> |
lock.writeLock().unlock(); |
467 |
> |
} |
468 |
> |
|
469 |
> |
/** |
470 |
> |
* Fair Read lock succeeds if write locked by current thread even if |
471 |
> |
* other threads are waiting for readlock |
472 |
> |
*/ |
473 |
> |
public void testReadHoldingWriteLockFair2() throws InterruptedException { |
474 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
475 |
> |
lock.writeLock().lock(); |
476 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
477 |
> |
public void realRun() { |
478 |
> |
lock.readLock().lock(); |
479 |
> |
lock.readLock().unlock(); |
480 |
> |
}}); |
481 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
482 |
> |
public void realRun() { |
483 |
> |
lock.readLock().lock(); |
484 |
> |
lock.readLock().unlock(); |
485 |
> |
}}); |
486 |
> |
|
487 |
> |
lock.readLock().lock(); |
488 |
> |
lock.readLock().unlock(); |
489 |
> |
Thread.sleep(SHORT_DELAY_MS); |
490 |
> |
lock.readLock().lock(); |
491 |
> |
lock.readLock().unlock(); |
492 |
> |
lock.writeLock().unlock(); |
493 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
494 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
495 |
> |
} |
496 |
> |
|
497 |
> |
|
498 |
> |
/** |
499 |
> |
* Fair Read lock succeeds if write locked by current thread even if |
500 |
> |
* other threads are waiting for writelock |
501 |
> |
*/ |
502 |
> |
public void testReadHoldingWriteLockFair3() throws InterruptedException { |
503 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
504 |
> |
lock.writeLock().lock(); |
505 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
506 |
> |
public void realRun() { |
507 |
> |
lock.writeLock().lock(); |
508 |
> |
lock.writeLock().unlock(); |
509 |
> |
}}); |
510 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
511 |
> |
public void realRun() { |
512 |
> |
lock.writeLock().lock(); |
513 |
> |
lock.writeLock().unlock(); |
514 |
> |
}}); |
515 |
> |
|
516 |
> |
lock.readLock().lock(); |
517 |
> |
lock.readLock().unlock(); |
518 |
> |
Thread.sleep(SHORT_DELAY_MS); |
519 |
> |
lock.readLock().lock(); |
520 |
> |
lock.readLock().unlock(); |
521 |
> |
lock.writeLock().unlock(); |
522 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
523 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
524 |
> |
} |
525 |
> |
|
526 |
> |
|
527 |
> |
/** |
528 |
> |
* Fair Write lock succeeds if write locked by current thread even if |
529 |
> |
* other threads are waiting for writelock |
530 |
> |
*/ |
531 |
> |
public void testWriteHoldingWriteLockFair4() throws InterruptedException { |
532 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
533 |
> |
lock.writeLock().lock(); |
534 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
535 |
> |
public void realRun() { |
536 |
> |
lock.writeLock().lock(); |
537 |
> |
lock.writeLock().unlock(); |
538 |
> |
}}); |
539 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
540 |
> |
public void realRun() { |
541 |
> |
lock.writeLock().lock(); |
542 |
> |
lock.writeLock().unlock(); |
543 |
> |
}}); |
544 |
> |
|
545 |
> |
Thread.sleep(SHORT_DELAY_MS); |
546 |
> |
assertTrue(lock.isWriteLockedByCurrentThread()); |
547 |
> |
assertEquals(1, lock.getWriteHoldCount()); |
548 |
> |
lock.writeLock().lock(); |
549 |
> |
assertEquals(2, lock.getWriteHoldCount()); |
550 |
> |
lock.writeLock().unlock(); |
551 |
> |
lock.writeLock().lock(); |
552 |
> |
lock.writeLock().unlock(); |
553 |
> |
lock.writeLock().unlock(); |
554 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
555 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
556 |
> |
} |
557 |
|
|
558 |
|
|
559 |
|
/** |
560 |
|
* Read tryLock succeeds if readlocked but not writelocked |
561 |
|
*/ |
562 |
< |
public void testTryLockWhenReadLocked() { |
563 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
564 |
< |
lock.readLock().lock(); |
565 |
< |
Thread t = new Thread(new Runnable() { |
566 |
< |
public void run() { |
567 |
< |
threadAssertTrue(lock.readLock().tryLock()); |
568 |
< |
lock.readLock().unlock(); |
569 |
< |
} |
391 |
< |
}); |
392 |
< |
try { |
393 |
< |
t.start(); |
394 |
< |
t.join(); |
395 |
< |
lock.readLock().unlock(); |
396 |
< |
} catch(Exception e){ |
397 |
< |
unexpectedException(); |
398 |
< |
} |
399 |
< |
} |
562 |
> |
public void testTryLockWhenReadLocked() throws InterruptedException { |
563 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
564 |
> |
lock.readLock().lock(); |
565 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
566 |
> |
public void realRun() { |
567 |
> |
assertTrue(lock.readLock().tryLock()); |
568 |
> |
lock.readLock().unlock(); |
569 |
> |
}}); |
570 |
|
|
571 |
< |
|
571 |
> |
awaitTermination(t, LONG_DELAY_MS); |
572 |
> |
lock.readLock().unlock(); |
573 |
> |
} |
574 |
|
|
575 |
|
/** |
576 |
|
* write tryLock fails when readlocked |
577 |
|
*/ |
578 |
< |
public void testWriteTryLockWhenReadLocked() { |
579 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
580 |
< |
lock.readLock().lock(); |
581 |
< |
Thread t = new Thread(new Runnable() { |
582 |
< |
public void run() { |
583 |
< |
threadAssertFalse(lock.writeLock().tryLock()); |
584 |
< |
} |
585 |
< |
}); |
586 |
< |
try { |
587 |
< |
t.start(); |
588 |
< |
t.join(); |
589 |
< |
lock.readLock().unlock(); |
590 |
< |
} catch(Exception e){ |
591 |
< |
unexpectedException(); |
592 |
< |
} |
593 |
< |
} |
578 |
> |
public void testWriteTryLockWhenReadLocked() throws InterruptedException { |
579 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
580 |
> |
lock.readLock().lock(); |
581 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
582 |
> |
public void realRun() { |
583 |
> |
assertFalse(lock.writeLock().tryLock()); |
584 |
> |
}}); |
585 |
> |
|
586 |
> |
awaitTermination(t, LONG_DELAY_MS); |
587 |
> |
lock.readLock().unlock(); |
588 |
> |
} |
589 |
> |
|
590 |
> |
|
591 |
> |
/** |
592 |
> |
* Fair Read tryLock succeeds if readlocked but not writelocked |
593 |
> |
*/ |
594 |
> |
public void testTryLockWhenReadLockedFair() throws InterruptedException { |
595 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
596 |
> |
lock.readLock().lock(); |
597 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
598 |
> |
public void realRun() { |
599 |
> |
assertTrue(lock.readLock().tryLock()); |
600 |
> |
lock.readLock().unlock(); |
601 |
> |
}}); |
602 |
> |
|
603 |
> |
awaitTermination(t, LONG_DELAY_MS); |
604 |
> |
lock.readLock().unlock(); |
605 |
> |
} |
606 |
> |
|
607 |
> |
|
608 |
> |
|
609 |
> |
/** |
610 |
> |
* Fair write tryLock fails when readlocked |
611 |
> |
*/ |
612 |
> |
public void testWriteTryLockWhenReadLockedFair() throws InterruptedException { |
613 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
614 |
> |
lock.readLock().lock(); |
615 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
616 |
> |
public void realRun() { |
617 |
> |
assertFalse(lock.writeLock().tryLock()); |
618 |
> |
}}); |
619 |
> |
|
620 |
> |
awaitTermination(t, LONG_DELAY_MS); |
621 |
> |
lock.readLock().unlock(); |
622 |
> |
} |
623 |
> |
|
624 |
|
|
423 |
– |
|
625 |
|
|
626 |
|
/** |
627 |
|
* write timed tryLock times out if locked |
628 |
|
*/ |
629 |
< |
public void testWriteTryLock_Timeout() { |
630 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
631 |
< |
lock.writeLock().lock(); |
632 |
< |
Thread t = new Thread(new Runnable() { |
633 |
< |
public void run() { |
634 |
< |
try { |
635 |
< |
threadAssertFalse(lock.writeLock().tryLock(1, TimeUnit.MILLISECONDS)); |
636 |
< |
} catch (Exception ex) { |
637 |
< |
threadUnexpectedException(); |
638 |
< |
} |
639 |
< |
} |
640 |
< |
}); |
440 |
< |
try { |
441 |
< |
t.start(); |
442 |
< |
t.join(); |
443 |
< |
lock.writeLock().unlock(); |
444 |
< |
} catch(Exception e){ |
445 |
< |
unexpectedException(); |
446 |
< |
} |
447 |
< |
} |
629 |
> |
public void testWriteTryLock_Timeout() throws InterruptedException { |
630 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
631 |
> |
lock.writeLock().lock(); |
632 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
633 |
> |
public void realRun() throws InterruptedException { |
634 |
> |
assertFalse(lock.writeLock().tryLock(1, MILLISECONDS)); |
635 |
> |
}}); |
636 |
> |
|
637 |
> |
awaitTermination(t, LONG_DELAY_MS); |
638 |
> |
assertTrue(lock.writeLock().isHeldByCurrentThread()); |
639 |
> |
lock.writeLock().unlock(); |
640 |
> |
} |
641 |
|
|
642 |
|
/** |
643 |
|
* read timed tryLock times out if write-locked |
644 |
|
*/ |
645 |
< |
public void testReadTryLock_Timeout() { |
646 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
647 |
< |
lock.writeLock().lock(); |
648 |
< |
Thread t = new Thread(new Runnable() { |
649 |
< |
public void run() { |
650 |
< |
try { |
651 |
< |
threadAssertFalse(lock.readLock().tryLock(1, TimeUnit.MILLISECONDS)); |
652 |
< |
} catch (Exception ex) { |
653 |
< |
threadUnexpectedException(); |
654 |
< |
} |
655 |
< |
} |
656 |
< |
}); |
464 |
< |
try { |
465 |
< |
t.start(); |
466 |
< |
t.join(); |
467 |
< |
lock.writeLock().unlock(); |
468 |
< |
} catch(Exception e){ |
469 |
< |
unexpectedException(); |
470 |
< |
} |
471 |
< |
} |
645 |
> |
public void testReadTryLock_Timeout() throws InterruptedException { |
646 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
647 |
> |
lock.writeLock().lock(); |
648 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
649 |
> |
public void realRun() throws InterruptedException { |
650 |
> |
assertFalse(lock.readLock().tryLock(1, MILLISECONDS)); |
651 |
> |
}}); |
652 |
> |
|
653 |
> |
awaitTermination(t, LONG_DELAY_MS); |
654 |
> |
assertTrue(lock.writeLock().isHeldByCurrentThread()); |
655 |
> |
lock.writeLock().unlock(); |
656 |
> |
} |
657 |
|
|
658 |
|
|
659 |
|
/** |
660 |
|
* write lockInterruptibly succeeds if lock free else is interruptible |
661 |
|
*/ |
662 |
< |
public void testWriteLockInterruptibly() { |
663 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
664 |
< |
try { |
665 |
< |
lock.writeLock().lockInterruptibly(); |
666 |
< |
} catch(Exception e) { |
667 |
< |
unexpectedException(); |
668 |
< |
} |
669 |
< |
Thread t = new Thread(new Runnable() { |
670 |
< |
public void run() { |
671 |
< |
try { |
672 |
< |
lock.writeLock().lockInterruptibly(); |
673 |
< |
threadShouldThrow(); |
489 |
< |
} |
490 |
< |
catch(InterruptedException success) { |
491 |
< |
} |
492 |
< |
} |
493 |
< |
}); |
494 |
< |
try { |
495 |
< |
t.start(); |
496 |
< |
t.interrupt(); |
497 |
< |
t.join(); |
498 |
< |
lock.writeLock().unlock(); |
499 |
< |
} catch(Exception e){ |
500 |
< |
unexpectedException(); |
501 |
< |
} |
662 |
> |
public void testWriteLockInterruptibly() throws InterruptedException { |
663 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
664 |
> |
lock.writeLock().lockInterruptibly(); |
665 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
666 |
> |
public void realRun() throws InterruptedException { |
667 |
> |
lock.writeLock().lockInterruptibly(); |
668 |
> |
}}); |
669 |
> |
|
670 |
> |
Thread.sleep(SHORT_DELAY_MS); |
671 |
> |
t.interrupt(); |
672 |
> |
awaitTermination(t, LONG_DELAY_MS); |
673 |
> |
releaseWriteLock(lock); |
674 |
|
} |
675 |
|
|
676 |
|
/** |
677 |
< |
* read lockInterruptibly succeeds if lock free else is interruptible |
677 |
> |
* read lockInterruptibly succeeds if lock free else is interruptible |
678 |
|
*/ |
679 |
< |
public void testReadLockInterruptibly() { |
680 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
681 |
< |
try { |
682 |
< |
lock.writeLock().lockInterruptibly(); |
683 |
< |
} catch(Exception e) { |
684 |
< |
unexpectedException(); |
685 |
< |
} |
686 |
< |
Thread t = new Thread(new Runnable() { |
687 |
< |
public void run() { |
688 |
< |
try { |
689 |
< |
lock.readLock().lockInterruptibly(); |
690 |
< |
threadShouldThrow(); |
519 |
< |
} |
520 |
< |
catch(InterruptedException success) { |
521 |
< |
} |
522 |
< |
} |
523 |
< |
}); |
524 |
< |
try { |
525 |
< |
t.start(); |
526 |
< |
t.interrupt(); |
527 |
< |
t.join(); |
528 |
< |
lock.writeLock().unlock(); |
529 |
< |
} catch(Exception e){ |
530 |
< |
unexpectedException(); |
531 |
< |
} |
679 |
> |
public void testReadLockInterruptibly() throws InterruptedException { |
680 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
681 |
> |
lock.writeLock().lockInterruptibly(); |
682 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
683 |
> |
public void realRun() throws InterruptedException { |
684 |
> |
lock.readLock().lockInterruptibly(); |
685 |
> |
}}); |
686 |
> |
|
687 |
> |
Thread.sleep(SHORT_DELAY_MS); |
688 |
> |
t.interrupt(); |
689 |
> |
awaitTermination(t, LONG_DELAY_MS); |
690 |
> |
releaseWriteLock(lock); |
691 |
|
} |
692 |
|
|
693 |
|
/** |
694 |
|
* Calling await without holding lock throws IllegalMonitorStateException |
695 |
|
*/ |
696 |
< |
public void testAwait_IllegalMonitor() { |
697 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
696 |
> |
public void testAwait_IllegalMonitor() throws InterruptedException { |
697 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
698 |
|
final Condition c = lock.writeLock().newCondition(); |
699 |
|
try { |
700 |
|
c.await(); |
701 |
|
shouldThrow(); |
702 |
< |
} |
544 |
< |
catch (IllegalMonitorStateException success) { |
545 |
< |
} |
546 |
< |
catch (Exception ex) { |
547 |
< |
shouldThrow(); |
548 |
< |
} |
702 |
> |
} catch (IllegalMonitorStateException success) {} |
703 |
|
} |
704 |
|
|
705 |
|
/** |
706 |
|
* Calling signal without holding lock throws IllegalMonitorStateException |
707 |
|
*/ |
708 |
|
public void testSignal_IllegalMonitor() { |
709 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
709 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
710 |
|
final Condition c = lock.writeLock().newCondition(); |
711 |
|
try { |
712 |
|
c.signal(); |
713 |
|
shouldThrow(); |
714 |
< |
} |
561 |
< |
catch (IllegalMonitorStateException success) { |
562 |
< |
} |
563 |
< |
catch (Exception ex) { |
564 |
< |
unexpectedException(); |
565 |
< |
} |
714 |
> |
} catch (IllegalMonitorStateException success) {} |
715 |
|
} |
716 |
|
|
717 |
|
/** |
718 |
|
* awaitNanos without a signal times out |
719 |
|
*/ |
720 |
< |
public void testAwaitNanos_Timeout() { |
721 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
720 |
> |
public void testAwaitNanos_Timeout() throws InterruptedException { |
721 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
722 |
|
final Condition c = lock.writeLock().newCondition(); |
723 |
< |
try { |
724 |
< |
lock.writeLock().lock(); |
725 |
< |
long t = c.awaitNanos(100); |
726 |
< |
assertTrue(t <= 0); |
727 |
< |
lock.writeLock().unlock(); |
579 |
< |
} |
580 |
< |
catch (Exception ex) { |
581 |
< |
unexpectedException(); |
582 |
< |
} |
723 |
> |
|
724 |
> |
lock.writeLock().lock(); |
725 |
> |
long t = c.awaitNanos(100); |
726 |
> |
assertTrue(t <= 0); |
727 |
> |
lock.writeLock().unlock(); |
728 |
|
} |
729 |
|
|
730 |
|
|
731 |
|
/** |
732 |
< |
* timed await without a signal times out |
732 |
> |
* timed await without a signal times out |
733 |
|
*/ |
734 |
< |
public void testAwait_Timeout() { |
735 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
734 |
> |
public void testAwait_Timeout() throws InterruptedException { |
735 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
736 |
|
final Condition c = lock.writeLock().newCondition(); |
737 |
< |
try { |
738 |
< |
lock.writeLock().lock(); |
739 |
< |
assertFalse(c.await(10, TimeUnit.MILLISECONDS)); |
595 |
< |
lock.writeLock().unlock(); |
596 |
< |
} |
597 |
< |
catch (Exception ex) { |
598 |
< |
unexpectedException(); |
599 |
< |
} |
737 |
> |
lock.writeLock().lock(); |
738 |
> |
assertFalse(c.await(SHORT_DELAY_MS, MILLISECONDS)); |
739 |
> |
lock.writeLock().unlock(); |
740 |
|
} |
741 |
|
|
742 |
|
/** |
743 |
|
* awaitUntil without a signal times out |
744 |
|
*/ |
745 |
< |
public void testAwaitUntil_Timeout() { |
746 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
745 |
> |
public void testAwaitUntil_Timeout() throws InterruptedException { |
746 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
747 |
|
final Condition c = lock.writeLock().newCondition(); |
748 |
< |
try { |
749 |
< |
lock.writeLock().lock(); |
750 |
< |
java.util.Date d = new java.util.Date(); |
751 |
< |
assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10))); |
612 |
< |
lock.writeLock().unlock(); |
613 |
< |
} |
614 |
< |
catch (Exception ex) { |
615 |
< |
unexpectedException(); |
616 |
< |
} |
748 |
> |
lock.writeLock().lock(); |
749 |
> |
java.util.Date d = new java.util.Date(); |
750 |
> |
assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10))); |
751 |
> |
lock.writeLock().unlock(); |
752 |
|
} |
753 |
|
|
754 |
|
/** |
755 |
|
* await returns when signalled |
756 |
|
*/ |
757 |
< |
public void testAwait() { |
758 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
757 |
> |
public void testAwait() throws InterruptedException { |
758 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
759 |
|
final Condition c = lock.writeLock().newCondition(); |
760 |
< |
Thread t = new Thread(new Runnable() { |
761 |
< |
public void run() { |
762 |
< |
try { |
763 |
< |
lock.writeLock().lock(); |
764 |
< |
c.await(); |
765 |
< |
lock.writeLock().unlock(); |
766 |
< |
} |
767 |
< |
catch(InterruptedException e) { |
768 |
< |
threadUnexpectedException(); |
769 |
< |
} |
770 |
< |
} |
771 |
< |
}); |
760 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
761 |
> |
public void realRun() throws InterruptedException { |
762 |
> |
lock.writeLock().lock(); |
763 |
> |
c.await(); |
764 |
> |
lock.writeLock().unlock(); |
765 |
> |
}}); |
766 |
> |
|
767 |
> |
Thread.sleep(SHORT_DELAY_MS); |
768 |
> |
lock.writeLock().lock(); |
769 |
> |
c.signal(); |
770 |
> |
lock.writeLock().unlock(); |
771 |
> |
awaitTermination(t, LONG_DELAY_MS); |
772 |
> |
} |
773 |
> |
|
774 |
> |
/** A helper class for uninterruptible wait tests */ |
775 |
> |
class UninterruptableThread extends Thread { |
776 |
> |
private Lock lock; |
777 |
> |
private Condition c; |
778 |
> |
|
779 |
> |
public volatile boolean canAwake = false; |
780 |
> |
public volatile boolean interrupted = false; |
781 |
> |
public volatile boolean lockStarted = false; |
782 |
> |
|
783 |
> |
public UninterruptableThread(Lock lock, Condition c) { |
784 |
> |
this.lock = lock; |
785 |
> |
this.c = c; |
786 |
> |
} |
787 |
> |
|
788 |
> |
public synchronized void run() { |
789 |
> |
lock.lock(); |
790 |
> |
lockStarted = true; |
791 |
> |
|
792 |
> |
while (!canAwake) { |
793 |
> |
c.awaitUninterruptibly(); |
794 |
> |
} |
795 |
|
|
796 |
< |
try { |
797 |
< |
t.start(); |
640 |
< |
Thread.sleep(SHORT_DELAY_MS); |
641 |
< |
lock.writeLock().lock(); |
642 |
< |
c.signal(); |
643 |
< |
lock.writeLock().unlock(); |
644 |
< |
t.join(SHORT_DELAY_MS); |
645 |
< |
assertFalse(t.isAlive()); |
646 |
< |
} |
647 |
< |
catch (Exception ex) { |
648 |
< |
unexpectedException(); |
796 |
> |
interrupted = isInterrupted(); |
797 |
> |
lock.unlock(); |
798 |
|
} |
799 |
|
} |
800 |
|
|
801 |
|
/** |
802 |
|
* awaitUninterruptibly doesn't abort on interrupt |
803 |
|
*/ |
804 |
< |
public void testAwaitUninterruptibly() { |
805 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
804 |
> |
public void testAwaitUninterruptibly() throws InterruptedException { |
805 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
806 |
|
final Condition c = lock.writeLock().newCondition(); |
807 |
< |
Thread t = new Thread(new Runnable() { |
808 |
< |
public void run() { |
809 |
< |
lock.writeLock().lock(); |
810 |
< |
c.awaitUninterruptibly(); |
811 |
< |
lock.writeLock().unlock(); |
812 |
< |
} |
813 |
< |
}); |
807 |
> |
UninterruptableThread thread = new UninterruptableThread(lock.writeLock(), c); |
808 |
> |
|
809 |
> |
thread.start(); |
810 |
> |
|
811 |
> |
while (!thread.lockStarted) { |
812 |
> |
Thread.sleep(100); |
813 |
> |
} |
814 |
|
|
815 |
+ |
lock.writeLock().lock(); |
816 |
|
try { |
817 |
< |
t.start(); |
818 |
< |
Thread.sleep(SHORT_DELAY_MS); |
669 |
< |
t.interrupt(); |
670 |
< |
lock.writeLock().lock(); |
817 |
> |
thread.interrupt(); |
818 |
> |
thread.canAwake = true; |
819 |
|
c.signal(); |
820 |
+ |
} finally { |
821 |
|
lock.writeLock().unlock(); |
673 |
– |
assert(t.isInterrupted()); |
674 |
– |
t.join(SHORT_DELAY_MS); |
675 |
– |
assertFalse(t.isAlive()); |
676 |
– |
} |
677 |
– |
catch (Exception ex) { |
678 |
– |
unexpectedException(); |
822 |
|
} |
823 |
+ |
|
824 |
+ |
awaitTermination(thread, LONG_DELAY_MS); |
825 |
+ |
assertTrue(thread.interrupted); |
826 |
|
} |
827 |
|
|
828 |
|
/** |
829 |
|
* await is interruptible |
830 |
|
*/ |
831 |
< |
public void testAwait_Interrupt() { |
832 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
831 |
> |
public void testAwait_Interrupt() throws InterruptedException { |
832 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
833 |
|
final Condition c = lock.writeLock().newCondition(); |
834 |
< |
Thread t = new Thread(new Runnable() { |
835 |
< |
public void run() { |
836 |
< |
try { |
837 |
< |
lock.writeLock().lock(); |
838 |
< |
c.await(); |
839 |
< |
lock.writeLock().unlock(); |
840 |
< |
threadShouldThrow(); |
841 |
< |
} |
842 |
< |
catch(InterruptedException success) { |
843 |
< |
} |
844 |
< |
} |
845 |
< |
}); |
846 |
< |
|
847 |
< |
try { |
848 |
< |
t.start(); |
849 |
< |
Thread.sleep(SHORT_DELAY_MS); |
704 |
< |
t.interrupt(); |
705 |
< |
t.join(SHORT_DELAY_MS); |
706 |
< |
assertFalse(t.isAlive()); |
707 |
< |
} |
708 |
< |
catch (Exception ex) { |
709 |
< |
unexpectedException(); |
710 |
< |
} |
834 |
> |
final CountDownLatch locked = new CountDownLatch(1); |
835 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
836 |
> |
public void realRun() throws InterruptedException { |
837 |
> |
lock.writeLock().lock(); |
838 |
> |
assertTrue(lock.isWriteLocked()); |
839 |
> |
locked.countDown(); |
840 |
> |
try { c.await(); } |
841 |
> |
finally { lock.writeLock().unlock(); } |
842 |
> |
}}); |
843 |
> |
|
844 |
> |
locked.await(); |
845 |
> |
while (lock.isWriteLocked()) |
846 |
> |
Thread.yield(); |
847 |
> |
t.interrupt(); |
848 |
> |
awaitTermination(t, LONG_DELAY_MS); |
849 |
> |
assertFalse(lock.isWriteLocked()); |
850 |
|
} |
851 |
|
|
852 |
|
/** |
853 |
|
* awaitNanos is interruptible |
854 |
|
*/ |
855 |
< |
public void testAwaitNanos_Interrupt() { |
856 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
855 |
> |
public void testAwaitNanos_Interrupt() throws InterruptedException { |
856 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
857 |
|
final Condition c = lock.writeLock().newCondition(); |
858 |
< |
Thread t = new Thread(new Runnable() { |
859 |
< |
public void run() { |
860 |
< |
try { |
861 |
< |
lock.writeLock().lock(); |
862 |
< |
c.awaitNanos(SHORT_DELAY_MS * 2 * 1000000); |
863 |
< |
lock.writeLock().unlock(); |
864 |
< |
threadShouldThrow(); |
865 |
< |
} |
866 |
< |
catch(InterruptedException success) { |
867 |
< |
} |
868 |
< |
} |
869 |
< |
}); |
870 |
< |
|
871 |
< |
try { |
872 |
< |
t.start(); |
873 |
< |
Thread.sleep(SHORT_DELAY_MS); |
735 |
< |
t.interrupt(); |
736 |
< |
t.join(SHORT_DELAY_MS); |
737 |
< |
assertFalse(t.isAlive()); |
738 |
< |
} |
739 |
< |
catch (Exception ex) { |
740 |
< |
unexpectedException(); |
741 |
< |
} |
858 |
> |
final CountDownLatch locked = new CountDownLatch(1); |
859 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
860 |
> |
public void realRun() throws InterruptedException { |
861 |
> |
lock.writeLock().lock(); |
862 |
> |
assertTrue(lock.isWriteLocked()); |
863 |
> |
locked.countDown(); |
864 |
> |
try { c.awaitNanos(MILLISECONDS.toNanos(LONG_DELAY_MS)); } |
865 |
> |
finally { lock.writeLock().unlock(); } |
866 |
> |
}}); |
867 |
> |
|
868 |
> |
locked.await(); |
869 |
> |
while (lock.isWriteLocked()) |
870 |
> |
Thread.yield(); |
871 |
> |
t.interrupt(); |
872 |
> |
awaitTermination(t, LONG_DELAY_MS); |
873 |
> |
assertFalse(lock.isWriteLocked()); |
874 |
|
} |
875 |
|
|
876 |
|
/** |
877 |
|
* awaitUntil is interruptible |
878 |
|
*/ |
879 |
< |
public void testAwaitUntil_Interrupt() { |
880 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
879 |
> |
public void testAwaitUntil_Interrupt() throws InterruptedException { |
880 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
881 |
|
final Condition c = lock.writeLock().newCondition(); |
882 |
< |
Thread t = new Thread(new Runnable() { |
883 |
< |
public void run() { |
884 |
< |
try { |
885 |
< |
lock.writeLock().lock(); |
886 |
< |
java.util.Date d = new java.util.Date(); |
887 |
< |
c.awaitUntil(new java.util.Date(d.getTime() + 10000)); |
888 |
< |
lock.writeLock().unlock(); |
889 |
< |
threadShouldThrow(); |
890 |
< |
} |
891 |
< |
catch(InterruptedException success) { |
892 |
< |
} |
893 |
< |
} |
894 |
< |
}); |
895 |
< |
|
896 |
< |
try { |
897 |
< |
t.start(); |
898 |
< |
Thread.sleep(SHORT_DELAY_MS); |
767 |
< |
t.interrupt(); |
768 |
< |
t.join(SHORT_DELAY_MS); |
769 |
< |
assertFalse(t.isAlive()); |
770 |
< |
} |
771 |
< |
catch (Exception ex) { |
772 |
< |
unexpectedException(); |
773 |
< |
} |
882 |
> |
final CountDownLatch locked = new CountDownLatch(1); |
883 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
884 |
> |
public void realRun() throws InterruptedException { |
885 |
> |
lock.writeLock().lock(); |
886 |
> |
assertTrue(lock.isWriteLocked()); |
887 |
> |
locked.countDown(); |
888 |
> |
java.util.Date d = new java.util.Date(); |
889 |
> |
try { c.awaitUntil(new java.util.Date(d.getTime() + 10000)); } |
890 |
> |
finally { lock.writeLock().unlock(); } |
891 |
> |
}}); |
892 |
> |
|
893 |
> |
locked.await(); |
894 |
> |
while (lock.isWriteLocked()) |
895 |
> |
Thread.yield(); |
896 |
> |
t.interrupt(); |
897 |
> |
awaitTermination(t, LONG_DELAY_MS); |
898 |
> |
assertFalse(lock.isWriteLocked()); |
899 |
|
} |
900 |
|
|
901 |
|
/** |
902 |
|
* signalAll wakes up all threads |
903 |
|
*/ |
904 |
< |
public void testSignalAll() { |
905 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
904 |
> |
public void testSignalAll() throws InterruptedException { |
905 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
906 |
|
final Condition c = lock.writeLock().newCondition(); |
907 |
< |
Thread t1 = new Thread(new Runnable() { |
908 |
< |
public void run() { |
909 |
< |
try { |
910 |
< |
lock.writeLock().lock(); |
911 |
< |
c.await(); |
912 |
< |
lock.writeLock().unlock(); |
913 |
< |
} |
914 |
< |
catch(InterruptedException e) { |
915 |
< |
threadUnexpectedException(); |
916 |
< |
} |
917 |
< |
} |
918 |
< |
}); |
919 |
< |
|
920 |
< |
Thread t2 = new Thread(new Runnable() { |
921 |
< |
public void run() { |
922 |
< |
try { |
923 |
< |
lock.writeLock().lock(); |
924 |
< |
c.await(); |
925 |
< |
lock.writeLock().unlock(); |
926 |
< |
} |
802 |
< |
catch(InterruptedException e) { |
803 |
< |
threadUnexpectedException(); |
804 |
< |
} |
805 |
< |
} |
806 |
< |
}); |
807 |
< |
|
808 |
< |
try { |
809 |
< |
t1.start(); |
810 |
< |
t2.start(); |
811 |
< |
Thread.sleep(SHORT_DELAY_MS); |
812 |
< |
lock.writeLock().lock(); |
813 |
< |
c.signalAll(); |
814 |
< |
lock.writeLock().unlock(); |
815 |
< |
t1.join(SHORT_DELAY_MS); |
816 |
< |
t2.join(SHORT_DELAY_MS); |
817 |
< |
assertFalse(t1.isAlive()); |
818 |
< |
assertFalse(t2.isAlive()); |
819 |
< |
} |
820 |
< |
catch (Exception ex) { |
821 |
< |
unexpectedException(); |
822 |
< |
} |
907 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
908 |
> |
public void realRun() throws InterruptedException { |
909 |
> |
lock.writeLock().lock(); |
910 |
> |
c.await(); |
911 |
> |
lock.writeLock().unlock(); |
912 |
> |
}}); |
913 |
> |
|
914 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
915 |
> |
public void realRun() throws InterruptedException { |
916 |
> |
lock.writeLock().lock(); |
917 |
> |
c.await(); |
918 |
> |
lock.writeLock().unlock(); |
919 |
> |
}}); |
920 |
> |
|
921 |
> |
Thread.sleep(SHORT_DELAY_MS); |
922 |
> |
lock.writeLock().lock(); |
923 |
> |
c.signalAll(); |
924 |
> |
lock.writeLock().unlock(); |
925 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
926 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
927 |
|
} |
928 |
|
|
929 |
|
/** |
930 |
|
* A serialized lock deserializes as unlocked |
931 |
|
*/ |
932 |
< |
public void testSerialization() { |
932 |
> |
public void testSerialization() throws Exception { |
933 |
|
ReentrantReadWriteLock l = new ReentrantReadWriteLock(); |
934 |
|
l.readLock().lock(); |
935 |
|
l.readLock().unlock(); |
936 |
|
|
937 |
< |
try { |
938 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
939 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
940 |
< |
out.writeObject(l); |
941 |
< |
out.close(); |
942 |
< |
|
943 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
944 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
945 |
< |
ReentrantReadWriteLock r = (ReentrantReadWriteLock) in.readObject(); |
946 |
< |
r.readLock().lock(); |
843 |
< |
r.readLock().unlock(); |
844 |
< |
} catch(Exception e){ |
845 |
< |
e.printStackTrace(); |
846 |
< |
unexpectedException(); |
847 |
< |
} |
937 |
> |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
938 |
> |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
939 |
> |
out.writeObject(l); |
940 |
> |
out.close(); |
941 |
> |
|
942 |
> |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
943 |
> |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
944 |
> |
ReentrantReadWriteLock r = (ReentrantReadWriteLock) in.readObject(); |
945 |
> |
r.readLock().lock(); |
946 |
> |
r.readLock().unlock(); |
947 |
|
} |
948 |
|
|
949 |
|
/** |
950 |
|
* hasQueuedThreads reports whether there are waiting threads |
951 |
|
*/ |
952 |
< |
public void testhasQueuedThreads() { |
953 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
952 |
> |
public void testhasQueuedThreads() throws InterruptedException { |
953 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
954 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
955 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
956 |
< |
try { |
957 |
< |
assertFalse(lock.hasQueuedThreads()); |
958 |
< |
lock.writeLock().lock(); |
959 |
< |
t1.start(); |
960 |
< |
Thread.sleep(SHORT_DELAY_MS); |
961 |
< |
assertTrue(lock.hasQueuedThreads()); |
962 |
< |
t2.start(); |
963 |
< |
Thread.sleep(SHORT_DELAY_MS); |
964 |
< |
assertTrue(lock.hasQueuedThreads()); |
965 |
< |
t1.interrupt(); |
966 |
< |
Thread.sleep(SHORT_DELAY_MS); |
967 |
< |
assertTrue(lock.hasQueuedThreads()); |
968 |
< |
lock.writeLock().unlock(); |
969 |
< |
Thread.sleep(SHORT_DELAY_MS); |
970 |
< |
assertFalse(lock.hasQueuedThreads()); |
971 |
< |
t1.join(); |
972 |
< |
t2.join(); |
874 |
< |
} catch(Exception e){ |
875 |
< |
unexpectedException(); |
876 |
< |
} |
877 |
< |
} |
956 |
> |
assertFalse(lock.hasQueuedThreads()); |
957 |
> |
lock.writeLock().lock(); |
958 |
> |
t1.start(); |
959 |
> |
Thread.sleep(SHORT_DELAY_MS); |
960 |
> |
assertTrue(lock.hasQueuedThreads()); |
961 |
> |
t2.start(); |
962 |
> |
Thread.sleep(SHORT_DELAY_MS); |
963 |
> |
assertTrue(lock.hasQueuedThreads()); |
964 |
> |
t1.interrupt(); |
965 |
> |
Thread.sleep(SHORT_DELAY_MS); |
966 |
> |
assertTrue(lock.hasQueuedThreads()); |
967 |
> |
lock.writeLock().unlock(); |
968 |
> |
Thread.sleep(SHORT_DELAY_MS); |
969 |
> |
assertFalse(lock.hasQueuedThreads()); |
970 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
971 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
972 |
> |
} |
973 |
|
|
974 |
|
/** |
975 |
|
* hasQueuedThread(null) throws NPE |
976 |
|
*/ |
977 |
< |
public void testHasQueuedThreadNPE() { |
978 |
< |
final ReentrantReadWriteLock sync = new ReentrantReadWriteLock(); |
977 |
> |
public void testHasQueuedThreadNPE() { |
978 |
> |
final ReentrantReadWriteLock sync = new ReentrantReadWriteLock(); |
979 |
|
try { |
980 |
|
sync.hasQueuedThread(null); |
981 |
|
shouldThrow(); |
982 |
< |
} catch (NullPointerException success) { |
888 |
< |
} |
982 |
> |
} catch (NullPointerException success) {} |
983 |
|
} |
984 |
|
|
985 |
|
/** |
986 |
|
* hasQueuedThread reports whether a thread is queued. |
987 |
|
*/ |
988 |
< |
public void testHasQueuedThread() { |
989 |
< |
final ReentrantReadWriteLock sync = new ReentrantReadWriteLock(); |
988 |
> |
public void testHasQueuedThread() throws InterruptedException { |
989 |
> |
final ReentrantReadWriteLock sync = new ReentrantReadWriteLock(); |
990 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(sync)); |
991 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(sync)); |
992 |
< |
try { |
993 |
< |
assertFalse(sync.hasQueuedThread(t1)); |
994 |
< |
assertFalse(sync.hasQueuedThread(t2)); |
995 |
< |
sync.writeLock().lock(); |
996 |
< |
t1.start(); |
997 |
< |
Thread.sleep(SHORT_DELAY_MS); |
998 |
< |
assertTrue(sync.hasQueuedThread(t1)); |
999 |
< |
t2.start(); |
1000 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1001 |
< |
assertTrue(sync.hasQueuedThread(t1)); |
1002 |
< |
assertTrue(sync.hasQueuedThread(t2)); |
1003 |
< |
t1.interrupt(); |
1004 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1005 |
< |
assertFalse(sync.hasQueuedThread(t1)); |
1006 |
< |
assertTrue(sync.hasQueuedThread(t2)); |
1007 |
< |
sync.writeLock().unlock(); |
1008 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1009 |
< |
assertFalse(sync.hasQueuedThread(t1)); |
1010 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1011 |
< |
assertFalse(sync.hasQueuedThread(t2)); |
1012 |
< |
t1.join(); |
1013 |
< |
t2.join(); |
920 |
< |
} catch(Exception e){ |
921 |
< |
unexpectedException(); |
922 |
< |
} |
923 |
< |
} |
992 |
> |
assertFalse(sync.hasQueuedThread(t1)); |
993 |
> |
assertFalse(sync.hasQueuedThread(t2)); |
994 |
> |
sync.writeLock().lock(); |
995 |
> |
t1.start(); |
996 |
> |
Thread.sleep(SHORT_DELAY_MS); |
997 |
> |
assertTrue(sync.hasQueuedThread(t1)); |
998 |
> |
t2.start(); |
999 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1000 |
> |
assertTrue(sync.hasQueuedThread(t1)); |
1001 |
> |
assertTrue(sync.hasQueuedThread(t2)); |
1002 |
> |
t1.interrupt(); |
1003 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1004 |
> |
assertFalse(sync.hasQueuedThread(t1)); |
1005 |
> |
assertTrue(sync.hasQueuedThread(t2)); |
1006 |
> |
sync.writeLock().unlock(); |
1007 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1008 |
> |
assertFalse(sync.hasQueuedThread(t1)); |
1009 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1010 |
> |
assertFalse(sync.hasQueuedThread(t2)); |
1011 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
1012 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
1013 |
> |
} |
1014 |
|
|
1015 |
|
|
1016 |
|
/** |
1017 |
|
* getQueueLength reports number of waiting threads |
1018 |
|
*/ |
1019 |
< |
public void testGetQueueLength() { |
1020 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1019 |
> |
public void testGetQueueLength() throws InterruptedException { |
1020 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1021 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
1022 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
1023 |
< |
try { |
1024 |
< |
assertEquals(0, lock.getQueueLength()); |
1025 |
< |
lock.writeLock().lock(); |
1026 |
< |
t1.start(); |
1027 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1028 |
< |
assertEquals(1, lock.getQueueLength()); |
1029 |
< |
t2.start(); |
1030 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1031 |
< |
assertEquals(2, lock.getQueueLength()); |
1032 |
< |
t1.interrupt(); |
1033 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1034 |
< |
assertEquals(1, lock.getQueueLength()); |
1035 |
< |
lock.writeLock().unlock(); |
1036 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1037 |
< |
assertEquals(0, lock.getQueueLength()); |
1038 |
< |
t1.join(); |
1039 |
< |
t2.join(); |
950 |
< |
} catch(Exception e){ |
951 |
< |
unexpectedException(); |
952 |
< |
} |
953 |
< |
} |
1023 |
> |
assertEquals(0, lock.getQueueLength()); |
1024 |
> |
lock.writeLock().lock(); |
1025 |
> |
t1.start(); |
1026 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1027 |
> |
assertEquals(1, lock.getQueueLength()); |
1028 |
> |
t2.start(); |
1029 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1030 |
> |
assertEquals(2, lock.getQueueLength()); |
1031 |
> |
t1.interrupt(); |
1032 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1033 |
> |
assertEquals(1, lock.getQueueLength()); |
1034 |
> |
lock.writeLock().unlock(); |
1035 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1036 |
> |
assertEquals(0, lock.getQueueLength()); |
1037 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
1038 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
1039 |
> |
} |
1040 |
|
|
1041 |
|
/** |
1042 |
|
* getQueuedThreads includes waiting threads |
1043 |
|
*/ |
1044 |
< |
public void testGetQueuedThreads() { |
1045 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1044 |
> |
public void testGetQueuedThreads() throws InterruptedException { |
1045 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1046 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
1047 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
1048 |
< |
try { |
1049 |
< |
assertTrue(lock.getQueuedThreads().isEmpty()); |
1050 |
< |
lock.writeLock().lock(); |
1051 |
< |
assertTrue(lock.getQueuedThreads().isEmpty()); |
1052 |
< |
t1.start(); |
1053 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1054 |
< |
assertTrue(lock.getQueuedThreads().contains(t1)); |
1055 |
< |
t2.start(); |
1056 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1057 |
< |
assertTrue(lock.getQueuedThreads().contains(t1)); |
1058 |
< |
assertTrue(lock.getQueuedThreads().contains(t2)); |
1059 |
< |
t1.interrupt(); |
1060 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1061 |
< |
assertFalse(lock.getQueuedThreads().contains(t1)); |
1062 |
< |
assertTrue(lock.getQueuedThreads().contains(t2)); |
1063 |
< |
lock.writeLock().unlock(); |
1064 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1065 |
< |
assertTrue(lock.getQueuedThreads().isEmpty()); |
1066 |
< |
t1.join(); |
1067 |
< |
t2.join(); |
982 |
< |
} catch(Exception e){ |
983 |
< |
unexpectedException(); |
984 |
< |
} |
985 |
< |
} |
1048 |
> |
assertTrue(lock.getQueuedThreads().isEmpty()); |
1049 |
> |
lock.writeLock().lock(); |
1050 |
> |
assertTrue(lock.getQueuedThreads().isEmpty()); |
1051 |
> |
t1.start(); |
1052 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1053 |
> |
assertTrue(lock.getQueuedThreads().contains(t1)); |
1054 |
> |
t2.start(); |
1055 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1056 |
> |
assertTrue(lock.getQueuedThreads().contains(t1)); |
1057 |
> |
assertTrue(lock.getQueuedThreads().contains(t2)); |
1058 |
> |
t1.interrupt(); |
1059 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1060 |
> |
assertFalse(lock.getQueuedThreads().contains(t1)); |
1061 |
> |
assertTrue(lock.getQueuedThreads().contains(t2)); |
1062 |
> |
lock.writeLock().unlock(); |
1063 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1064 |
> |
assertTrue(lock.getQueuedThreads().isEmpty()); |
1065 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
1066 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
1067 |
> |
} |
1068 |
|
|
1069 |
|
/** |
1070 |
|
* hasWaiters throws NPE if null |
1071 |
|
*/ |
1072 |
|
public void testHasWaitersNPE() { |
1073 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1073 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1074 |
|
try { |
1075 |
|
lock.hasWaiters(null); |
1076 |
|
shouldThrow(); |
1077 |
< |
} catch (NullPointerException success) { |
996 |
< |
} catch (Exception ex) { |
997 |
< |
unexpectedException(); |
998 |
< |
} |
1077 |
> |
} catch (NullPointerException success) {} |
1078 |
|
} |
1079 |
|
|
1080 |
|
/** |
1081 |
|
* getWaitQueueLength throws NPE if null |
1082 |
|
*/ |
1083 |
|
public void testGetWaitQueueLengthNPE() { |
1084 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1084 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1085 |
|
try { |
1086 |
|
lock.getWaitQueueLength(null); |
1087 |
|
shouldThrow(); |
1088 |
< |
} catch (NullPointerException success) { |
1010 |
< |
} catch (Exception ex) { |
1011 |
< |
unexpectedException(); |
1012 |
< |
} |
1088 |
> |
} catch (NullPointerException success) {} |
1089 |
|
} |
1090 |
|
|
1091 |
|
|
1093 |
|
* getWaitingThreads throws NPE if null |
1094 |
|
*/ |
1095 |
|
public void testGetWaitingThreadsNPE() { |
1096 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1096 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1097 |
|
try { |
1098 |
|
lock.getWaitingThreads(null); |
1099 |
|
shouldThrow(); |
1100 |
< |
} catch (NullPointerException success) { |
1025 |
< |
} catch (Exception ex) { |
1026 |
< |
unexpectedException(); |
1027 |
< |
} |
1100 |
> |
} catch (NullPointerException success) {} |
1101 |
|
} |
1102 |
|
|
1103 |
|
/** |
1104 |
|
* hasWaiters throws IAE if not owned |
1105 |
|
*/ |
1106 |
|
public void testHasWaitersIAE() { |
1107 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1108 |
< |
final Condition c = (lock.writeLock().newCondition()); |
1109 |
< |
final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(); |
1107 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1108 |
> |
final Condition c = lock.writeLock().newCondition(); |
1109 |
> |
final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(); |
1110 |
|
try { |
1111 |
|
lock2.hasWaiters(c); |
1112 |
|
shouldThrow(); |
1113 |
< |
} catch (IllegalArgumentException success) { |
1041 |
< |
} catch (Exception ex) { |
1042 |
< |
unexpectedException(); |
1043 |
< |
} |
1113 |
> |
} catch (IllegalArgumentException success) {} |
1114 |
|
} |
1115 |
|
|
1116 |
|
/** |
1117 |
|
* hasWaiters throws IMSE if not locked |
1118 |
|
*/ |
1119 |
|
public void testHasWaitersIMSE() { |
1120 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1121 |
< |
final Condition c = (lock.writeLock().newCondition()); |
1120 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1121 |
> |
final Condition c = lock.writeLock().newCondition(); |
1122 |
|
try { |
1123 |
|
lock.hasWaiters(c); |
1124 |
|
shouldThrow(); |
1125 |
< |
} catch (IllegalMonitorStateException success) { |
1056 |
< |
} catch (Exception ex) { |
1057 |
< |
unexpectedException(); |
1058 |
< |
} |
1125 |
> |
} catch (IllegalMonitorStateException success) {} |
1126 |
|
} |
1127 |
|
|
1128 |
|
|
1130 |
|
* getWaitQueueLength throws IAE if not owned |
1131 |
|
*/ |
1132 |
|
public void testGetWaitQueueLengthIAE() { |
1133 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1134 |
< |
final Condition c = (lock.writeLock().newCondition()); |
1135 |
< |
final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(); |
1133 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1134 |
> |
final Condition c = lock.writeLock().newCondition(); |
1135 |
> |
final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(); |
1136 |
|
try { |
1137 |
|
lock2.getWaitQueueLength(c); |
1138 |
|
shouldThrow(); |
1139 |
< |
} catch (IllegalArgumentException success) { |
1073 |
< |
} catch (Exception ex) { |
1074 |
< |
unexpectedException(); |
1075 |
< |
} |
1139 |
> |
} catch (IllegalArgumentException success) {} |
1140 |
|
} |
1141 |
|
|
1142 |
|
/** |
1143 |
|
* getWaitQueueLength throws IMSE if not locked |
1144 |
|
*/ |
1145 |
|
public void testGetWaitQueueLengthIMSE() { |
1146 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1147 |
< |
final Condition c = (lock.writeLock().newCondition()); |
1146 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1147 |
> |
final Condition c = lock.writeLock().newCondition(); |
1148 |
|
try { |
1149 |
|
lock.getWaitQueueLength(c); |
1150 |
|
shouldThrow(); |
1151 |
< |
} catch (IllegalMonitorStateException success) { |
1088 |
< |
} catch (Exception ex) { |
1089 |
< |
unexpectedException(); |
1090 |
< |
} |
1151 |
> |
} catch (IllegalMonitorStateException success) {} |
1152 |
|
} |
1153 |
|
|
1154 |
|
|
1156 |
|
* getWaitingThreads throws IAE if not owned |
1157 |
|
*/ |
1158 |
|
public void testGetWaitingThreadsIAE() { |
1159 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1160 |
< |
final Condition c = (lock.writeLock().newCondition()); |
1161 |
< |
final PublicReentrantReadWriteLock lock2 = new PublicReentrantReadWriteLock(); |
1159 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1160 |
> |
final Condition c = lock.writeLock().newCondition(); |
1161 |
> |
final PublicReentrantReadWriteLock lock2 = new PublicReentrantReadWriteLock(); |
1162 |
|
try { |
1163 |
|
lock2.getWaitingThreads(c); |
1164 |
|
shouldThrow(); |
1165 |
< |
} catch (IllegalArgumentException success) { |
1105 |
< |
} catch (Exception ex) { |
1106 |
< |
unexpectedException(); |
1107 |
< |
} |
1165 |
> |
} catch (IllegalArgumentException success) {} |
1166 |
|
} |
1167 |
|
|
1168 |
|
/** |
1169 |
|
* getWaitingThreads throws IMSE if not locked |
1170 |
|
*/ |
1171 |
|
public void testGetWaitingThreadsIMSE() { |
1172 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1173 |
< |
final Condition c = (lock.writeLock().newCondition()); |
1172 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1173 |
> |
final Condition c = lock.writeLock().newCondition(); |
1174 |
|
try { |
1175 |
|
lock.getWaitingThreads(c); |
1176 |
|
shouldThrow(); |
1177 |
< |
} catch (IllegalMonitorStateException success) { |
1120 |
< |
} catch (Exception ex) { |
1121 |
< |
unexpectedException(); |
1122 |
< |
} |
1177 |
> |
} catch (IllegalMonitorStateException success) {} |
1178 |
|
} |
1179 |
|
|
1180 |
|
|
1181 |
|
/** |
1182 |
|
* hasWaiters returns true when a thread is waiting, else false |
1183 |
|
*/ |
1184 |
< |
public void testHasWaiters() { |
1185 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1186 |
< |
final Condition c = (lock.writeLock().newCondition()); |
1187 |
< |
Thread t = new Thread(new Runnable() { |
1188 |
< |
public void run() { |
1189 |
< |
try { |
1190 |
< |
lock.writeLock().lock(); |
1191 |
< |
threadAssertFalse(lock.hasWaiters(c)); |
1192 |
< |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
1193 |
< |
c.await(); |
1194 |
< |
lock.writeLock().unlock(); |
1195 |
< |
} |
1196 |
< |
catch(InterruptedException e) { |
1197 |
< |
threadUnexpectedException(); |
1198 |
< |
} |
1199 |
< |
} |
1200 |
< |
}); |
1201 |
< |
|
1202 |
< |
try { |
1203 |
< |
t.start(); |
1204 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1205 |
< |
lock.writeLock().lock(); |
1206 |
< |
assertTrue(lock.hasWaiters(c)); |
1207 |
< |
assertEquals(1, lock.getWaitQueueLength(c)); |
1153 |
< |
c.signal(); |
1154 |
< |
lock.writeLock().unlock(); |
1155 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1156 |
< |
lock.writeLock().lock(); |
1157 |
< |
assertFalse(lock.hasWaiters(c)); |
1158 |
< |
assertEquals(0, lock.getWaitQueueLength(c)); |
1159 |
< |
lock.writeLock().unlock(); |
1160 |
< |
t.join(SHORT_DELAY_MS); |
1161 |
< |
assertFalse(t.isAlive()); |
1162 |
< |
} |
1163 |
< |
catch (Exception ex) { |
1164 |
< |
unexpectedException(); |
1165 |
< |
} |
1184 |
> |
public void testHasWaiters() throws InterruptedException { |
1185 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1186 |
> |
final Condition c = lock.writeLock().newCondition(); |
1187 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
1188 |
> |
public void realRun() throws InterruptedException { |
1189 |
> |
lock.writeLock().lock(); |
1190 |
> |
assertFalse(lock.hasWaiters(c)); |
1191 |
> |
assertEquals(0, lock.getWaitQueueLength(c)); |
1192 |
> |
c.await(); |
1193 |
> |
lock.writeLock().unlock(); |
1194 |
> |
}}); |
1195 |
> |
|
1196 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1197 |
> |
lock.writeLock().lock(); |
1198 |
> |
assertTrue(lock.hasWaiters(c)); |
1199 |
> |
assertEquals(1, lock.getWaitQueueLength(c)); |
1200 |
> |
c.signal(); |
1201 |
> |
lock.writeLock().unlock(); |
1202 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1203 |
> |
lock.writeLock().lock(); |
1204 |
> |
assertFalse(lock.hasWaiters(c)); |
1205 |
> |
assertEquals(0, lock.getWaitQueueLength(c)); |
1206 |
> |
lock.writeLock().unlock(); |
1207 |
> |
awaitTermination(t, LONG_DELAY_MS); |
1208 |
|
} |
1209 |
|
|
1210 |
|
/** |
1211 |
|
* getWaitQueueLength returns number of waiting threads |
1212 |
|
*/ |
1213 |
< |
public void testGetWaitQueueLength() { |
1214 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1215 |
< |
final Condition c = (lock.writeLock().newCondition()); |
1216 |
< |
Thread t = new Thread(new Runnable() { |
1217 |
< |
public void run() { |
1218 |
< |
try { |
1219 |
< |
lock.writeLock().lock(); |
1220 |
< |
threadAssertFalse(lock.hasWaiters(c)); |
1221 |
< |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
1222 |
< |
c.await(); |
1223 |
< |
lock.writeLock().unlock(); |
1224 |
< |
} |
1225 |
< |
catch(InterruptedException e) { |
1226 |
< |
threadUnexpectedException(); |
1227 |
< |
} |
1228 |
< |
} |
1229 |
< |
}); |
1230 |
< |
|
1231 |
< |
try { |
1232 |
< |
t.start(); |
1233 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1234 |
< |
lock.writeLock().lock(); |
1235 |
< |
assertTrue(lock.hasWaiters(c)); |
1236 |
< |
assertEquals(1, lock.getWaitQueueLength(c)); |
1195 |
< |
c.signal(); |
1196 |
< |
lock.writeLock().unlock(); |
1197 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1198 |
< |
lock.writeLock().lock(); |
1199 |
< |
assertFalse(lock.hasWaiters(c)); |
1200 |
< |
assertEquals(0, lock.getWaitQueueLength(c)); |
1201 |
< |
lock.writeLock().unlock(); |
1202 |
< |
t.join(SHORT_DELAY_MS); |
1203 |
< |
assertFalse(t.isAlive()); |
1204 |
< |
} |
1205 |
< |
catch (Exception ex) { |
1206 |
< |
unexpectedException(); |
1207 |
< |
} |
1213 |
> |
public void testGetWaitQueueLength() throws InterruptedException { |
1214 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1215 |
> |
final Condition c = lock.writeLock().newCondition(); |
1216 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
1217 |
> |
public void realRun() throws InterruptedException { |
1218 |
> |
lock.writeLock().lock(); |
1219 |
> |
assertFalse(lock.hasWaiters(c)); |
1220 |
> |
assertEquals(0, lock.getWaitQueueLength(c)); |
1221 |
> |
c.await(); |
1222 |
> |
lock.writeLock().unlock(); |
1223 |
> |
}}); |
1224 |
> |
|
1225 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1226 |
> |
lock.writeLock().lock(); |
1227 |
> |
assertTrue(lock.hasWaiters(c)); |
1228 |
> |
assertEquals(1, lock.getWaitQueueLength(c)); |
1229 |
> |
c.signal(); |
1230 |
> |
lock.writeLock().unlock(); |
1231 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1232 |
> |
lock.writeLock().lock(); |
1233 |
> |
assertFalse(lock.hasWaiters(c)); |
1234 |
> |
assertEquals(0, lock.getWaitQueueLength(c)); |
1235 |
> |
lock.writeLock().unlock(); |
1236 |
> |
awaitTermination(t, LONG_DELAY_MS); |
1237 |
|
} |
1238 |
|
|
1239 |
|
|
1240 |
|
/** |
1241 |
|
* getWaitingThreads returns only and all waiting threads |
1242 |
|
*/ |
1243 |
< |
public void testGetWaitingThreads() { |
1244 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1243 |
> |
public void testGetWaitingThreads() throws InterruptedException { |
1244 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1245 |
|
final Condition c = lock.writeLock().newCondition(); |
1246 |
< |
Thread t1 = new Thread(new Runnable() { |
1247 |
< |
public void run() { |
1248 |
< |
try { |
1249 |
< |
lock.writeLock().lock(); |
1250 |
< |
threadAssertTrue(lock.getWaitingThreads(c).isEmpty()); |
1251 |
< |
c.await(); |
1252 |
< |
lock.writeLock().unlock(); |
1253 |
< |
} |
1254 |
< |
catch(InterruptedException e) { |
1255 |
< |
threadUnexpectedException(); |
1256 |
< |
} |
1257 |
< |
} |
1258 |
< |
}); |
1259 |
< |
|
1260 |
< |
Thread t2 = new Thread(new Runnable() { |
1261 |
< |
public void run() { |
1262 |
< |
try { |
1263 |
< |
lock.writeLock().lock(); |
1264 |
< |
threadAssertFalse(lock.getWaitingThreads(c).isEmpty()); |
1265 |
< |
c.await(); |
1266 |
< |
lock.writeLock().unlock(); |
1267 |
< |
} |
1268 |
< |
catch(InterruptedException e) { |
1269 |
< |
threadUnexpectedException(); |
1270 |
< |
} |
1271 |
< |
} |
1272 |
< |
}); |
1273 |
< |
|
1274 |
< |
try { |
1275 |
< |
lock.writeLock().lock(); |
1276 |
< |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
1277 |
< |
lock.writeLock().unlock(); |
1278 |
< |
t1.start(); |
1279 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1280 |
< |
t2.start(); |
1281 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1253 |
< |
lock.writeLock().lock(); |
1254 |
< |
assertTrue(lock.hasWaiters(c)); |
1255 |
< |
assertTrue(lock.getWaitingThreads(c).contains(t1)); |
1256 |
< |
assertTrue(lock.getWaitingThreads(c).contains(t2)); |
1257 |
< |
c.signalAll(); |
1258 |
< |
lock.writeLock().unlock(); |
1259 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1260 |
< |
lock.writeLock().lock(); |
1261 |
< |
assertFalse(lock.hasWaiters(c)); |
1262 |
< |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
1263 |
< |
lock.writeLock().unlock(); |
1264 |
< |
t1.join(SHORT_DELAY_MS); |
1265 |
< |
t2.join(SHORT_DELAY_MS); |
1266 |
< |
assertFalse(t1.isAlive()); |
1267 |
< |
assertFalse(t2.isAlive()); |
1268 |
< |
} |
1269 |
< |
catch (Exception ex) { |
1270 |
< |
unexpectedException(); |
1271 |
< |
} |
1246 |
> |
Thread t1 = new Thread(new CheckedRunnable() { |
1247 |
> |
public void realRun() throws InterruptedException { |
1248 |
> |
lock.writeLock().lock(); |
1249 |
> |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
1250 |
> |
c.await(); |
1251 |
> |
lock.writeLock().unlock(); |
1252 |
> |
}}); |
1253 |
> |
|
1254 |
> |
Thread t2 = new Thread(new CheckedRunnable() { |
1255 |
> |
public void realRun() throws InterruptedException { |
1256 |
> |
lock.writeLock().lock(); |
1257 |
> |
assertFalse(lock.getWaitingThreads(c).isEmpty()); |
1258 |
> |
c.await(); |
1259 |
> |
lock.writeLock().unlock(); |
1260 |
> |
}}); |
1261 |
> |
|
1262 |
> |
lock.writeLock().lock(); |
1263 |
> |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
1264 |
> |
lock.writeLock().unlock(); |
1265 |
> |
t1.start(); |
1266 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1267 |
> |
t2.start(); |
1268 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1269 |
> |
lock.writeLock().lock(); |
1270 |
> |
assertTrue(lock.hasWaiters(c)); |
1271 |
> |
assertTrue(lock.getWaitingThreads(c).contains(t1)); |
1272 |
> |
assertTrue(lock.getWaitingThreads(c).contains(t2)); |
1273 |
> |
c.signalAll(); |
1274 |
> |
lock.writeLock().unlock(); |
1275 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1276 |
> |
lock.writeLock().lock(); |
1277 |
> |
assertFalse(lock.hasWaiters(c)); |
1278 |
> |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
1279 |
> |
lock.writeLock().unlock(); |
1280 |
> |
awaitTermination(t1, LONG_DELAY_MS); |
1281 |
> |
awaitTermination(t2, LONG_DELAY_MS); |
1282 |
|
} |
1283 |
|
|
1284 |
|
/** |