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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/licenses/publicdomain |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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*/ |
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import junit.framework.*; |
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import java.util.concurrent.atomic.AtomicBoolean; |
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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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/** |
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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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– |
|
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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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|
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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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* Spin-waits until lock.hasQueuedThread(t) becomes true. |
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*/ |
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void waitForQueuedThread(ReentrantReadWriteLock lock, Thread t) { |
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long startTime = System.nanoTime(); |
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while (!lock.hasQueuedThread(t)) { |
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if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
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throw new AssertionError("timed out"); |
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Thread.yield(); |
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} |
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} |
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|
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/** |
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* Checks that lock is not write-locked. |
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*/ |
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void assertNotWriteLocked(ReentrantReadWriteLock lock) { |
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assertFalse(lock.isWriteLocked()); |
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assertFalse(lock.isWriteLockedByCurrentThread()); |
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assertEquals(0, lock.getWriteHoldCount()); |
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} |
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|
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/** |
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* Checks that condition c has no waiters. |
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*/ |
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void assertHasNoWaiters(PublicReentrantReadWriteLock lock, Condition c) { |
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assertHasWaiters(lock, c, new Thread[] {}); |
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} |
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|
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/** |
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* Checks that condition c has exactly the given waiter threads. |
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*/ |
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void assertHasWaiters(PublicReentrantReadWriteLock lock, Condition c, |
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Thread... threads) { |
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lock.writeLock().lock(); |
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assertEquals(threads.length > 0, lock.hasWaiters(c)); |
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assertEquals(threads.length, lock.getWaitQueueLength(c)); |
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assertEquals(threads.length == 0, lock.getWaitingThreads(c).isEmpty()); |
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assertEquals(threads.length, lock.getWaitingThreads(c).size()); |
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assertEquals(new HashSet<Thread>(lock.getWaitingThreads(c)), |
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new HashSet<Thread>(Arrays.asList(threads))); |
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lock.writeLock().unlock(); |
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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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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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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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assertEquals(0, rl.getReadLockCount()); |
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} |
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|
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/** |
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* locking an unlocked fair lock succeeds |
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*/ |
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public void testFairLock() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(true); |
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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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* 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--) { |
192 |
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lock.writeLock().unlock(); |
193 |
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assertEquals(i-1,lock.getWriteHoldCount()); |
194 |
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} |
186 |
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ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
187 |
> |
for (int i = 1; i <= SIZE; i++) { |
188 |
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lock.writeLock().lock(); |
189 |
> |
assertEquals(i,lock.getWriteHoldCount()); |
190 |
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} |
191 |
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for (int i = SIZE; i > 0; i--) { |
192 |
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lock.writeLock().unlock(); |
193 |
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assertEquals(i-1,lock.getWriteHoldCount()); |
194 |
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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 |
199 |
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*/ |
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public void testGetHoldCount() { |
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ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
202 |
< |
for (int i = 1; i <= SIZE; i++) { |
203 |
< |
lock.writeLock().lock(); |
204 |
< |
assertEquals(i,lock.writeLock().getHoldCount()); |
205 |
< |
} |
206 |
< |
for (int i = SIZE; i > 0; i--) { |
207 |
< |
lock.writeLock().unlock(); |
208 |
< |
assertEquals(i-1,lock.writeLock().getHoldCount()); |
209 |
< |
} |
201 |
> |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
202 |
> |
for (int i = 1; i <= SIZE; i++) { |
203 |
> |
lock.writeLock().lock(); |
204 |
> |
assertEquals(i,lock.writeLock().getHoldCount()); |
205 |
> |
} |
206 |
> |
for (int i = SIZE; i > 0; i--) { |
207 |
> |
lock.writeLock().unlock(); |
208 |
> |
assertEquals(i-1,lock.writeLock().getHoldCount()); |
209 |
> |
} |
210 |
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} |
211 |
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|
212 |
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/** |
213 |
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* getReadHoldCount returns number of recursive holds |
214 |
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*/ |
215 |
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public void testGetReadHoldCount() { |
216 |
< |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
217 |
< |
for (int i = 1; i <= SIZE; i++) { |
218 |
< |
lock.readLock().lock(); |
219 |
< |
assertEquals(i,lock.getReadHoldCount()); |
220 |
< |
} |
221 |
< |
for (int i = SIZE; i > 0; i--) { |
222 |
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lock.readLock().unlock(); |
223 |
< |
assertEquals(i-1,lock.getReadHoldCount()); |
224 |
< |
} |
216 |
> |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
217 |
> |
for (int i = 1; i <= SIZE; i++) { |
218 |
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lock.readLock().lock(); |
219 |
> |
assertEquals(i,lock.getReadHoldCount()); |
220 |
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} |
221 |
> |
for (int i = SIZE; i > 0; i--) { |
222 |
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lock.readLock().unlock(); |
223 |
> |
assertEquals(i-1,lock.getReadHoldCount()); |
224 |
> |
} |
225 |
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} |
226 |
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|
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– |
|
227 |
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/** |
228 |
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* write-unlocking an unlocked lock throws IllegalMonitorStateException |
229 |
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*/ |
230 |
< |
public void testUnlock_IllegalMonitorStateException() { |
231 |
< |
ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
232 |
< |
try { |
233 |
< |
rl.writeLock().unlock(); |
234 |
< |
shouldThrow(); |
235 |
< |
} catch (IllegalMonitorStateException success){} |
230 |
> |
public void testWriteUnlock_IllegalMonitorStateException() { |
231 |
> |
ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
232 |
> |
try { |
233 |
> |
rl.writeLock().unlock(); |
234 |
> |
shouldThrow(); |
235 |
> |
} catch (IllegalMonitorStateException success) {} |
236 |
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} |
237 |
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|
238 |
+ |
/** |
239 |
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* read-unlocking an unlocked lock throws IllegalMonitorStateException |
240 |
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*/ |
241 |
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public void testReadUnlock_IllegalMonitorStateException() { |
242 |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
243 |
+ |
try { |
244 |
+ |
rl.readLock().unlock(); |
245 |
+ |
shouldThrow(); |
246 |
+ |
} catch (IllegalMonitorStateException success) {} |
247 |
+ |
} |
248 |
|
|
249 |
|
/** |
250 |
|
* write-lockInterruptibly is interruptible |
251 |
|
*/ |
252 |
< |
public void testWriteLockInterruptibly_Interrupted() { |
253 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
254 |
< |
Thread t = new Thread(new Runnable() { |
255 |
< |
public void run() { |
256 |
< |
try { |
257 |
< |
lock.writeLock().lockInterruptibly(); |
258 |
< |
lock.writeLock().unlock(); |
259 |
< |
lock.writeLock().lockInterruptibly(); |
260 |
< |
lock.writeLock().unlock(); |
261 |
< |
} catch (InterruptedException success){} |
262 |
< |
} |
263 |
< |
}); |
203 |
< |
try { |
204 |
< |
lock.writeLock().lock(); |
205 |
< |
t.start(); |
206 |
< |
Thread.sleep(SHORT_DELAY_MS); |
207 |
< |
t.interrupt(); |
208 |
< |
Thread.sleep(SHORT_DELAY_MS); |
209 |
< |
lock.writeLock().unlock(); |
210 |
< |
t.join(); |
211 |
< |
} catch (Exception e){ |
212 |
< |
unexpectedException(); |
213 |
< |
} |
252 |
> |
public void testWriteLockInterruptibly_Interrupted() throws Exception { |
253 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
254 |
> |
lock.writeLock().lock(); |
255 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
256 |
> |
public void realRun() throws InterruptedException { |
257 |
> |
lock.writeLock().lockInterruptibly(); |
258 |
> |
}}); |
259 |
> |
|
260 |
> |
waitForQueuedThread(lock, t); |
261 |
> |
t.interrupt(); |
262 |
> |
awaitTermination(t); |
263 |
> |
releaseWriteLock(lock); |
264 |
|
} |
265 |
|
|
266 |
|
/** |
267 |
|
* timed write-tryLock is interruptible |
268 |
|
*/ |
269 |
< |
public void testWriteTryLock_Interrupted() { |
270 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
271 |
< |
lock.writeLock().lock(); |
272 |
< |
Thread t = new Thread(new Runnable() { |
273 |
< |
public void run() { |
274 |
< |
try { |
275 |
< |
lock.writeLock().tryLock(1000,TimeUnit.MILLISECONDS); |
276 |
< |
} catch (InterruptedException success){} |
277 |
< |
} |
278 |
< |
}); |
279 |
< |
try { |
280 |
< |
t.start(); |
231 |
< |
t.interrupt(); |
232 |
< |
lock.writeLock().unlock(); |
233 |
< |
t.join(); |
234 |
< |
} catch (Exception e){ |
235 |
< |
unexpectedException(); |
236 |
< |
} |
269 |
> |
public void testWriteTryLock_Interrupted() throws InterruptedException { |
270 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
271 |
> |
lock.writeLock().lock(); |
272 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
273 |
> |
public void realRun() throws InterruptedException { |
274 |
> |
lock.writeLock().tryLock(LONG_DELAY_MS, MILLISECONDS); |
275 |
> |
}}); |
276 |
> |
|
277 |
> |
waitForQueuedThread(lock, t); |
278 |
> |
t.interrupt(); |
279 |
> |
awaitTermination(t); |
280 |
> |
releaseWriteLock(lock); |
281 |
|
} |
282 |
|
|
283 |
|
/** |
284 |
|
* read-lockInterruptibly is interruptible |
285 |
|
*/ |
286 |
< |
public void testReadLockInterruptibly_Interrupted() { |
287 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
288 |
< |
lock.writeLock().lock(); |
289 |
< |
Thread t = new Thread(new Runnable() { |
290 |
< |
public void run() { |
291 |
< |
try { |
292 |
< |
lock.readLock().lockInterruptibly(); |
293 |
< |
} catch (InterruptedException success){} |
294 |
< |
} |
295 |
< |
}); |
296 |
< |
try { |
297 |
< |
t.start(); |
254 |
< |
Thread.sleep(SHORT_DELAY_MS); |
255 |
< |
t.interrupt(); |
256 |
< |
Thread.sleep(SHORT_DELAY_MS); |
257 |
< |
lock.writeLock().unlock(); |
258 |
< |
t.join(); |
259 |
< |
} catch (Exception e){ |
260 |
< |
unexpectedException(); |
261 |
< |
} |
286 |
> |
public void testReadLockInterruptibly_Interrupted() throws InterruptedException { |
287 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
288 |
> |
lock.writeLock().lock(); |
289 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
290 |
> |
public void realRun() throws InterruptedException { |
291 |
> |
lock.readLock().lockInterruptibly(); |
292 |
> |
}}); |
293 |
> |
|
294 |
> |
waitForQueuedThread(lock, t); |
295 |
> |
t.interrupt(); |
296 |
> |
awaitTermination(t); |
297 |
> |
releaseWriteLock(lock); |
298 |
|
} |
299 |
|
|
300 |
|
/** |
301 |
|
* timed read-tryLock is interruptible |
302 |
|
*/ |
303 |
< |
public void testReadTryLock_Interrupted() { |
304 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
305 |
< |
lock.writeLock().lock(); |
306 |
< |
Thread t = new Thread(new Runnable() { |
307 |
< |
public void run() { |
308 |
< |
try { |
309 |
< |
lock.readLock().tryLock(1000,TimeUnit.MILLISECONDS); |
310 |
< |
threadShouldThrow(); |
311 |
< |
} catch (InterruptedException success){} |
312 |
< |
} |
313 |
< |
}); |
314 |
< |
try { |
279 |
< |
t.start(); |
280 |
< |
t.interrupt(); |
281 |
< |
t.join(); |
282 |
< |
} catch (Exception e){ |
283 |
< |
unexpectedException(); |
284 |
< |
} |
303 |
> |
public void testReadTryLock_Interrupted() throws InterruptedException { |
304 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
305 |
> |
lock.writeLock().lock(); |
306 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
307 |
> |
public void realRun() throws InterruptedException { |
308 |
> |
lock.readLock().tryLock(LONG_DELAY_MS, MILLISECONDS); |
309 |
> |
}}); |
310 |
> |
|
311 |
> |
waitForQueuedThread(lock, t); |
312 |
> |
t.interrupt(); |
313 |
> |
awaitTermination(t); |
314 |
> |
releaseWriteLock(lock); |
315 |
|
} |
316 |
|
|
287 |
– |
|
317 |
|
/** |
318 |
|
* write-tryLock fails if locked |
319 |
|
*/ |
320 |
< |
public void testWriteTryLockWhenLocked() { |
321 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
322 |
< |
lock.writeLock().lock(); |
323 |
< |
Thread t = new Thread(new Runnable() { |
324 |
< |
public void run() { |
325 |
< |
threadAssertFalse(lock.writeLock().tryLock()); |
326 |
< |
} |
327 |
< |
}); |
328 |
< |
try { |
329 |
< |
t.start(); |
301 |
< |
t.join(); |
302 |
< |
lock.writeLock().unlock(); |
303 |
< |
} catch (Exception e){ |
304 |
< |
unexpectedException(); |
305 |
< |
} |
320 |
> |
public void testWriteTryLockWhenLocked() throws InterruptedException { |
321 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
322 |
> |
lock.writeLock().lock(); |
323 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
324 |
> |
public void realRun() { |
325 |
> |
assertFalse(lock.writeLock().tryLock()); |
326 |
> |
}}); |
327 |
> |
|
328 |
> |
awaitTermination(t); |
329 |
> |
releaseWriteLock(lock); |
330 |
|
} |
331 |
|
|
332 |
|
/** |
333 |
|
* read-tryLock fails if locked |
334 |
|
*/ |
335 |
< |
public void testReadTryLockWhenLocked() { |
336 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
337 |
< |
lock.writeLock().lock(); |
338 |
< |
Thread t = new Thread(new Runnable() { |
339 |
< |
public void run() { |
340 |
< |
threadAssertFalse(lock.readLock().tryLock()); |
341 |
< |
} |
342 |
< |
}); |
343 |
< |
try { |
344 |
< |
t.start(); |
321 |
< |
t.join(); |
322 |
< |
lock.writeLock().unlock(); |
323 |
< |
} catch (Exception e){ |
324 |
< |
unexpectedException(); |
325 |
< |
} |
335 |
> |
public void testReadTryLockWhenLocked() throws InterruptedException { |
336 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
337 |
> |
lock.writeLock().lock(); |
338 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
339 |
> |
public void realRun() { |
340 |
> |
assertFalse(lock.readLock().tryLock()); |
341 |
> |
}}); |
342 |
> |
|
343 |
> |
awaitTermination(t); |
344 |
> |
releaseWriteLock(lock); |
345 |
|
} |
346 |
|
|
347 |
|
/** |
348 |
|
* Multiple threads can hold a read lock when not write-locked |
349 |
|
*/ |
350 |
< |
public void testMultipleReadLocks() { |
351 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
352 |
< |
lock.readLock().lock(); |
353 |
< |
Thread t = new Thread(new Runnable() { |
354 |
< |
public void run() { |
355 |
< |
threadAssertTrue(lock.readLock().tryLock()); |
356 |
< |
lock.readLock().unlock(); |
357 |
< |
} |
358 |
< |
}); |
359 |
< |
try { |
360 |
< |
t.start(); |
342 |
< |
t.join(); |
343 |
< |
lock.readLock().unlock(); |
344 |
< |
} catch (Exception e){ |
345 |
< |
unexpectedException(); |
346 |
< |
} |
350 |
> |
public void testMultipleReadLocks() throws InterruptedException { |
351 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
352 |
> |
lock.readLock().lock(); |
353 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
354 |
> |
public void realRun() { |
355 |
> |
assertTrue(lock.readLock().tryLock()); |
356 |
> |
lock.readLock().unlock(); |
357 |
> |
}}); |
358 |
> |
|
359 |
> |
awaitTermination(t); |
360 |
> |
lock.readLock().unlock(); |
361 |
|
} |
362 |
|
|
363 |
|
/** |
364 |
< |
* A writelock succeeds after reading threads unlock |
364 |
> |
* A writelock succeeds only after reading threads unlock |
365 |
|
*/ |
366 |
< |
public void testWriteAfterMultipleReadLocks() { |
367 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
368 |
< |
lock.readLock().lock(); |
369 |
< |
Thread t1 = new Thread(new Runnable() { |
370 |
< |
public void run() { |
371 |
< |
lock.readLock().lock(); |
372 |
< |
lock.readLock().unlock(); |
373 |
< |
} |
374 |
< |
}); |
375 |
< |
Thread t2 = new Thread(new Runnable() { |
376 |
< |
public void run() { |
377 |
< |
lock.writeLock().lock(); |
378 |
< |
lock.writeLock().unlock(); |
365 |
< |
} |
366 |
< |
}); |
367 |
< |
|
368 |
< |
try { |
369 |
< |
t1.start(); |
370 |
< |
t2.start(); |
371 |
< |
Thread.sleep(SHORT_DELAY_MS); |
372 |
< |
lock.readLock().unlock(); |
373 |
< |
t1.join(MEDIUM_DELAY_MS); |
374 |
< |
t2.join(MEDIUM_DELAY_MS); |
375 |
< |
assertTrue(!t1.isAlive()); |
376 |
< |
assertTrue(!t2.isAlive()); |
366 |
> |
public void testWriteAfterMultipleReadLocks() throws InterruptedException { |
367 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
368 |
> |
lock.readLock().lock(); |
369 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
370 |
> |
public void realRun() { |
371 |
> |
lock.readLock().lock(); |
372 |
> |
lock.readLock().unlock(); |
373 |
> |
}}); |
374 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
375 |
> |
public void realRun() { |
376 |
> |
lock.writeLock().lock(); |
377 |
> |
lock.writeLock().unlock(); |
378 |
> |
}}); |
379 |
|
|
380 |
< |
} catch (Exception e){ |
381 |
< |
unexpectedException(); |
382 |
< |
} |
380 |
> |
awaitTermination(t1); |
381 |
> |
waitForQueuedThread(lock, t2); |
382 |
> |
assertNotWriteLocked(lock); |
383 |
> |
lock.readLock().unlock(); |
384 |
> |
awaitTermination(t2); |
385 |
|
} |
386 |
|
|
387 |
|
/** |
388 |
< |
* Readlocks succeed after a writing thread unlocks |
388 |
> |
* Readlocks succeed only after a writing thread unlocks |
389 |
|
*/ |
390 |
< |
public void testReadAfterWriteLock() { |
391 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
392 |
< |
lock.writeLock().lock(); |
393 |
< |
Thread t1 = new Thread(new Runnable() { |
394 |
< |
public void run() { |
395 |
< |
lock.readLock().lock(); |
396 |
< |
lock.readLock().unlock(); |
397 |
< |
} |
398 |
< |
}); |
399 |
< |
Thread t2 = new Thread(new Runnable() { |
400 |
< |
public void run() { |
401 |
< |
lock.readLock().lock(); |
402 |
< |
lock.readLock().unlock(); |
403 |
< |
} |
404 |
< |
}); |
405 |
< |
|
406 |
< |
try { |
407 |
< |
t1.start(); |
408 |
< |
t2.start(); |
405 |
< |
Thread.sleep(SHORT_DELAY_MS); |
406 |
< |
lock.writeLock().unlock(); |
407 |
< |
t1.join(MEDIUM_DELAY_MS); |
408 |
< |
t2.join(MEDIUM_DELAY_MS); |
409 |
< |
assertTrue(!t1.isAlive()); |
410 |
< |
assertTrue(!t2.isAlive()); |
411 |
< |
|
412 |
< |
} catch (Exception e){ |
413 |
< |
unexpectedException(); |
414 |
< |
} |
390 |
> |
public void testReadAfterWriteLock() throws InterruptedException { |
391 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
392 |
> |
lock.writeLock().lock(); |
393 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
394 |
> |
public void realRun() { |
395 |
> |
lock.readLock().lock(); |
396 |
> |
lock.readLock().unlock(); |
397 |
> |
}}); |
398 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
399 |
> |
public void realRun() { |
400 |
> |
lock.readLock().lock(); |
401 |
> |
lock.readLock().unlock(); |
402 |
> |
}}); |
403 |
> |
|
404 |
> |
waitForQueuedThread(lock, t1); |
405 |
> |
waitForQueuedThread(lock, t2); |
406 |
> |
releaseWriteLock(lock); |
407 |
> |
awaitTermination(t1); |
408 |
> |
awaitTermination(t2); |
409 |
|
} |
410 |
|
|
411 |
|
/** |
412 |
|
* Read trylock succeeds if write locked by current thread |
413 |
|
*/ |
414 |
|
public void testReadHoldingWriteLock() { |
415 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
416 |
< |
lock.writeLock().lock(); |
415 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
416 |
> |
lock.writeLock().lock(); |
417 |
|
assertTrue(lock.readLock().tryLock()); |
418 |
|
lock.readLock().unlock(); |
419 |
|
lock.writeLock().unlock(); |
423 |
|
* Read lock succeeds if write locked by current thread even if |
424 |
|
* other threads are waiting for readlock |
425 |
|
*/ |
426 |
< |
public void testReadHoldingWriteLock2() { |
427 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
428 |
< |
lock.writeLock().lock(); |
429 |
< |
Thread t1 = new Thread(new Runnable() { |
430 |
< |
public void run() { |
437 |
< |
lock.readLock().lock(); |
438 |
< |
lock.readLock().unlock(); |
439 |
< |
} |
440 |
< |
}); |
441 |
< |
Thread t2 = new Thread(new Runnable() { |
442 |
< |
public void run() { |
443 |
< |
lock.readLock().lock(); |
444 |
< |
lock.readLock().unlock(); |
445 |
< |
} |
446 |
< |
}); |
447 |
< |
|
448 |
< |
try { |
449 |
< |
t1.start(); |
450 |
< |
t2.start(); |
451 |
< |
lock.readLock().lock(); |
452 |
< |
lock.readLock().unlock(); |
453 |
< |
Thread.sleep(SHORT_DELAY_MS); |
454 |
< |
lock.readLock().lock(); |
455 |
< |
lock.readLock().unlock(); |
456 |
< |
lock.writeLock().unlock(); |
457 |
< |
t1.join(MEDIUM_DELAY_MS); |
458 |
< |
t2.join(MEDIUM_DELAY_MS); |
459 |
< |
assertTrue(!t1.isAlive()); |
460 |
< |
assertTrue(!t2.isAlive()); |
426 |
> |
public void testReadHoldingWriteLock2() throws InterruptedException { |
427 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
428 |
> |
lock.writeLock().lock(); |
429 |
> |
lock.readLock().lock(); |
430 |
> |
lock.readLock().unlock(); |
431 |
|
|
432 |
< |
} catch (Exception e){ |
433 |
< |
unexpectedException(); |
434 |
< |
} |
432 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
433 |
> |
public void realRun() { |
434 |
> |
lock.readLock().lock(); |
435 |
> |
lock.readLock().unlock(); |
436 |
> |
}}); |
437 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
438 |
> |
public void realRun() { |
439 |
> |
lock.readLock().lock(); |
440 |
> |
lock.readLock().unlock(); |
441 |
> |
}}); |
442 |
> |
|
443 |
> |
waitForQueuedThread(lock, t1); |
444 |
> |
waitForQueuedThread(lock, t2); |
445 |
> |
assertTrue(lock.isWriteLockedByCurrentThread()); |
446 |
> |
lock.readLock().lock(); |
447 |
> |
lock.readLock().unlock(); |
448 |
> |
releaseWriteLock(lock); |
449 |
> |
awaitTermination(t1); |
450 |
> |
awaitTermination(t2); |
451 |
|
} |
452 |
|
|
453 |
|
/** |
454 |
< |
* Read lock succeeds if write locked by current thread even if |
454 |
> |
* Read lock succeeds if write locked by current thread even if |
455 |
|
* other threads are waiting for writelock |
456 |
|
*/ |
457 |
< |
public void testReadHoldingWriteLock3() { |
458 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
459 |
< |
lock.writeLock().lock(); |
460 |
< |
Thread t1 = new Thread(new Runnable() { |
461 |
< |
public void run() { |
476 |
< |
lock.writeLock().lock(); |
477 |
< |
lock.writeLock().unlock(); |
478 |
< |
} |
479 |
< |
}); |
480 |
< |
Thread t2 = new Thread(new Runnable() { |
481 |
< |
public void run() { |
482 |
< |
lock.writeLock().lock(); |
483 |
< |
lock.writeLock().unlock(); |
484 |
< |
} |
485 |
< |
}); |
457 |
> |
public void testReadHoldingWriteLock3() throws InterruptedException { |
458 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
459 |
> |
lock.writeLock().lock(); |
460 |
> |
lock.readLock().lock(); |
461 |
> |
lock.readLock().unlock(); |
462 |
|
|
463 |
< |
try { |
464 |
< |
t1.start(); |
465 |
< |
t2.start(); |
466 |
< |
lock.readLock().lock(); |
467 |
< |
lock.readLock().unlock(); |
468 |
< |
Thread.sleep(SHORT_DELAY_MS); |
469 |
< |
lock.readLock().lock(); |
470 |
< |
lock.readLock().unlock(); |
471 |
< |
lock.writeLock().unlock(); |
472 |
< |
t1.join(MEDIUM_DELAY_MS); |
497 |
< |
t2.join(MEDIUM_DELAY_MS); |
498 |
< |
assertTrue(!t1.isAlive()); |
499 |
< |
assertTrue(!t2.isAlive()); |
463 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
464 |
> |
public void realRun() { |
465 |
> |
lock.writeLock().lock(); |
466 |
> |
lock.writeLock().unlock(); |
467 |
> |
}}); |
468 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
469 |
> |
public void realRun() { |
470 |
> |
lock.writeLock().lock(); |
471 |
> |
lock.writeLock().unlock(); |
472 |
> |
}}); |
473 |
|
|
474 |
< |
} catch (Exception e){ |
475 |
< |
unexpectedException(); |
476 |
< |
} |
474 |
> |
waitForQueuedThread(lock, t1); |
475 |
> |
waitForQueuedThread(lock, t2); |
476 |
> |
assertTrue(lock.isWriteLockedByCurrentThread()); |
477 |
> |
lock.readLock().lock(); |
478 |
> |
lock.readLock().unlock(); |
479 |
> |
releaseWriteLock(lock); |
480 |
> |
awaitTermination(t1); |
481 |
> |
awaitTermination(t2); |
482 |
|
} |
483 |
|
|
506 |
– |
|
484 |
|
/** |
485 |
< |
* Write lock succeeds if write locked by current thread even if |
485 |
> |
* Write lock succeeds if write locked by current thread even if |
486 |
|
* other threads are waiting for writelock |
487 |
|
*/ |
488 |
< |
public void testWriteHoldingWriteLock4() { |
489 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
490 |
< |
lock.writeLock().lock(); |
491 |
< |
Thread t1 = new Thread(new Runnable() { |
492 |
< |
public void run() { |
516 |
< |
lock.writeLock().lock(); |
517 |
< |
lock.writeLock().unlock(); |
518 |
< |
} |
519 |
< |
}); |
520 |
< |
Thread t2 = new Thread(new Runnable() { |
521 |
< |
public void run() { |
522 |
< |
lock.writeLock().lock(); |
523 |
< |
lock.writeLock().unlock(); |
524 |
< |
} |
525 |
< |
}); |
488 |
> |
public void testWriteHoldingWriteLock4() throws InterruptedException { |
489 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
490 |
> |
lock.writeLock().lock(); |
491 |
> |
lock.writeLock().lock(); |
492 |
> |
lock.writeLock().unlock(); |
493 |
|
|
494 |
< |
try { |
495 |
< |
t1.start(); |
496 |
< |
t2.start(); |
497 |
< |
lock.writeLock().lock(); |
498 |
< |
lock.writeLock().unlock(); |
499 |
< |
Thread.sleep(SHORT_DELAY_MS); |
500 |
< |
lock.writeLock().lock(); |
501 |
< |
lock.writeLock().unlock(); |
502 |
< |
lock.writeLock().unlock(); |
503 |
< |
t1.join(MEDIUM_DELAY_MS); |
537 |
< |
t2.join(MEDIUM_DELAY_MS); |
538 |
< |
assertTrue(!t1.isAlive()); |
539 |
< |
assertTrue(!t2.isAlive()); |
494 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
495 |
> |
public void realRun() { |
496 |
> |
lock.writeLock().lock(); |
497 |
> |
lock.writeLock().unlock(); |
498 |
> |
}}); |
499 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
500 |
> |
public void realRun() { |
501 |
> |
lock.writeLock().lock(); |
502 |
> |
lock.writeLock().unlock(); |
503 |
> |
}}); |
504 |
|
|
505 |
< |
} catch (Exception e){ |
506 |
< |
unexpectedException(); |
507 |
< |
} |
505 |
> |
waitForQueuedThread(lock, t1); |
506 |
> |
waitForQueuedThread(lock, t2); |
507 |
> |
assertTrue(lock.isWriteLockedByCurrentThread()); |
508 |
> |
assertEquals(1, lock.getWriteHoldCount()); |
509 |
> |
lock.writeLock().lock(); |
510 |
> |
assertTrue(lock.isWriteLockedByCurrentThread()); |
511 |
> |
assertEquals(2, lock.getWriteHoldCount()); |
512 |
> |
lock.writeLock().unlock(); |
513 |
> |
releaseWriteLock(lock); |
514 |
> |
awaitTermination(t1); |
515 |
> |
awaitTermination(t2); |
516 |
|
} |
517 |
|
|
546 |
– |
|
518 |
|
/** |
519 |
|
* Fair Read trylock succeeds if write locked by current thread |
520 |
|
*/ |
521 |
|
public void testReadHoldingWriteLockFair() { |
522 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
523 |
< |
lock.writeLock().lock(); |
522 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
523 |
> |
lock.writeLock().lock(); |
524 |
|
assertTrue(lock.readLock().tryLock()); |
525 |
|
lock.readLock().unlock(); |
526 |
|
lock.writeLock().unlock(); |
530 |
|
* Fair Read lock succeeds if write locked by current thread even if |
531 |
|
* other threads are waiting for readlock |
532 |
|
*/ |
533 |
< |
public void testReadHoldingWriteLockFair2() { |
534 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
535 |
< |
lock.writeLock().lock(); |
536 |
< |
Thread t1 = new Thread(new Runnable() { |
537 |
< |
public void run() { |
567 |
< |
lock.readLock().lock(); |
568 |
< |
lock.readLock().unlock(); |
569 |
< |
} |
570 |
< |
}); |
571 |
< |
Thread t2 = new Thread(new Runnable() { |
572 |
< |
public void run() { |
573 |
< |
lock.readLock().lock(); |
574 |
< |
lock.readLock().unlock(); |
575 |
< |
} |
576 |
< |
}); |
577 |
< |
|
578 |
< |
try { |
579 |
< |
t1.start(); |
580 |
< |
t2.start(); |
581 |
< |
lock.readLock().lock(); |
582 |
< |
lock.readLock().unlock(); |
583 |
< |
Thread.sleep(SHORT_DELAY_MS); |
584 |
< |
lock.readLock().lock(); |
585 |
< |
lock.readLock().unlock(); |
586 |
< |
lock.writeLock().unlock(); |
587 |
< |
t1.join(MEDIUM_DELAY_MS); |
588 |
< |
t2.join(MEDIUM_DELAY_MS); |
589 |
< |
assertTrue(!t1.isAlive()); |
590 |
< |
assertTrue(!t2.isAlive()); |
533 |
> |
public void testReadHoldingWriteLockFair2() throws InterruptedException { |
534 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
535 |
> |
lock.writeLock().lock(); |
536 |
> |
lock.readLock().lock(); |
537 |
> |
lock.readLock().unlock(); |
538 |
|
|
539 |
< |
} catch (Exception e){ |
540 |
< |
unexpectedException(); |
541 |
< |
} |
539 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
540 |
> |
public void realRun() { |
541 |
> |
lock.readLock().lock(); |
542 |
> |
lock.readLock().unlock(); |
543 |
> |
}}); |
544 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
545 |
> |
public void realRun() { |
546 |
> |
lock.readLock().lock(); |
547 |
> |
lock.readLock().unlock(); |
548 |
> |
}}); |
549 |
> |
|
550 |
> |
waitForQueuedThread(lock, t1); |
551 |
> |
waitForQueuedThread(lock, t2); |
552 |
> |
assertTrue(lock.isWriteLockedByCurrentThread()); |
553 |
> |
lock.readLock().lock(); |
554 |
> |
lock.readLock().unlock(); |
555 |
> |
releaseWriteLock(lock); |
556 |
> |
awaitTermination(t1); |
557 |
> |
awaitTermination(t2); |
558 |
|
} |
559 |
|
|
597 |
– |
|
560 |
|
/** |
561 |
|
* Fair Read lock succeeds if write locked by current thread even if |
562 |
|
* other threads are waiting for writelock |
563 |
|
*/ |
564 |
< |
public void testReadHoldingWriteLockFair3() { |
565 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
566 |
< |
lock.writeLock().lock(); |
567 |
< |
Thread t1 = new Thread(new Runnable() { |
568 |
< |
public void run() { |
607 |
< |
lock.writeLock().lock(); |
608 |
< |
lock.writeLock().unlock(); |
609 |
< |
} |
610 |
< |
}); |
611 |
< |
Thread t2 = new Thread(new Runnable() { |
612 |
< |
public void run() { |
613 |
< |
lock.writeLock().lock(); |
614 |
< |
lock.writeLock().unlock(); |
615 |
< |
} |
616 |
< |
}); |
564 |
> |
public void testReadHoldingWriteLockFair3() throws InterruptedException { |
565 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
566 |
> |
lock.writeLock().lock(); |
567 |
> |
lock.readLock().lock(); |
568 |
> |
lock.readLock().unlock(); |
569 |
|
|
570 |
< |
try { |
571 |
< |
t1.start(); |
572 |
< |
t2.start(); |
573 |
< |
lock.readLock().lock(); |
574 |
< |
lock.readLock().unlock(); |
575 |
< |
Thread.sleep(SHORT_DELAY_MS); |
576 |
< |
lock.readLock().lock(); |
577 |
< |
lock.readLock().unlock(); |
578 |
< |
lock.writeLock().unlock(); |
579 |
< |
t1.join(MEDIUM_DELAY_MS); |
628 |
< |
t2.join(MEDIUM_DELAY_MS); |
629 |
< |
assertTrue(!t1.isAlive()); |
630 |
< |
assertTrue(!t2.isAlive()); |
570 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
571 |
> |
public void realRun() { |
572 |
> |
lock.writeLock().lock(); |
573 |
> |
lock.writeLock().unlock(); |
574 |
> |
}}); |
575 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
576 |
> |
public void realRun() { |
577 |
> |
lock.writeLock().lock(); |
578 |
> |
lock.writeLock().unlock(); |
579 |
> |
}}); |
580 |
|
|
581 |
< |
} catch (Exception e){ |
582 |
< |
unexpectedException(); |
583 |
< |
} |
581 |
> |
waitForQueuedThread(lock, t1); |
582 |
> |
waitForQueuedThread(lock, t2); |
583 |
> |
assertTrue(lock.isWriteLockedByCurrentThread()); |
584 |
> |
lock.readLock().lock(); |
585 |
> |
lock.readLock().unlock(); |
586 |
> |
releaseWriteLock(lock); |
587 |
> |
awaitTermination(t1); |
588 |
> |
awaitTermination(t2); |
589 |
|
} |
590 |
|
|
637 |
– |
|
591 |
|
/** |
592 |
|
* Fair Write lock succeeds if write locked by current thread even if |
593 |
|
* other threads are waiting for writelock |
594 |
|
*/ |
595 |
< |
public void testWriteHoldingWriteLockFair4() { |
596 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
597 |
< |
lock.writeLock().lock(); |
598 |
< |
Thread t1 = new Thread(new Runnable() { |
599 |
< |
public void run() { |
600 |
< |
lock.writeLock().lock(); |
601 |
< |
lock.writeLock().unlock(); |
602 |
< |
} |
603 |
< |
}); |
604 |
< |
Thread t2 = new Thread(new Runnable() { |
605 |
< |
public void run() { |
606 |
< |
lock.writeLock().lock(); |
607 |
< |
lock.writeLock().unlock(); |
655 |
< |
} |
656 |
< |
}); |
657 |
< |
|
658 |
< |
try { |
659 |
< |
t1.start(); |
660 |
< |
t2.start(); |
661 |
< |
Thread.sleep(SHORT_DELAY_MS); |
662 |
< |
assertTrue(lock.isWriteLockedByCurrentThread()); |
663 |
< |
assertTrue(lock.getWriteHoldCount() == 1); |
664 |
< |
lock.writeLock().lock(); |
665 |
< |
assertTrue(lock.getWriteHoldCount() == 2); |
666 |
< |
lock.writeLock().unlock(); |
667 |
< |
lock.writeLock().lock(); |
668 |
< |
lock.writeLock().unlock(); |
669 |
< |
lock.writeLock().unlock(); |
670 |
< |
t1.join(MEDIUM_DELAY_MS); |
671 |
< |
t2.join(MEDIUM_DELAY_MS); |
672 |
< |
assertTrue(!t1.isAlive()); |
673 |
< |
assertTrue(!t2.isAlive()); |
595 |
> |
public void testWriteHoldingWriteLockFair4() throws InterruptedException { |
596 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
597 |
> |
lock.writeLock().lock(); |
598 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
599 |
> |
public void realRun() { |
600 |
> |
lock.writeLock().lock(); |
601 |
> |
lock.writeLock().unlock(); |
602 |
> |
}}); |
603 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
604 |
> |
public void realRun() { |
605 |
> |
lock.writeLock().lock(); |
606 |
> |
lock.writeLock().unlock(); |
607 |
> |
}}); |
608 |
|
|
609 |
< |
} catch (Exception e){ |
610 |
< |
unexpectedException(); |
611 |
< |
} |
609 |
> |
waitForQueuedThread(lock, t1); |
610 |
> |
waitForQueuedThread(lock, t2); |
611 |
> |
assertTrue(lock.isWriteLockedByCurrentThread()); |
612 |
> |
assertEquals(1, lock.getWriteHoldCount()); |
613 |
> |
lock.writeLock().lock(); |
614 |
> |
assertEquals(2, lock.getWriteHoldCount()); |
615 |
> |
lock.writeLock().unlock(); |
616 |
> |
lock.writeLock().lock(); |
617 |
> |
lock.writeLock().unlock(); |
618 |
> |
releaseWriteLock(lock); |
619 |
> |
awaitTermination(t1); |
620 |
> |
awaitTermination(t2); |
621 |
|
} |
622 |
|
|
680 |
– |
|
623 |
|
/** |
624 |
|
* Read tryLock succeeds if readlocked but not writelocked |
625 |
|
*/ |
626 |
< |
public void testTryLockWhenReadLocked() { |
627 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
628 |
< |
lock.readLock().lock(); |
629 |
< |
Thread t = new Thread(new Runnable() { |
630 |
< |
public void run() { |
631 |
< |
threadAssertTrue(lock.readLock().tryLock()); |
632 |
< |
lock.readLock().unlock(); |
633 |
< |
} |
692 |
< |
}); |
693 |
< |
try { |
694 |
< |
t.start(); |
695 |
< |
t.join(); |
696 |
< |
lock.readLock().unlock(); |
697 |
< |
} catch (Exception e){ |
698 |
< |
unexpectedException(); |
699 |
< |
} |
700 |
< |
} |
701 |
< |
|
626 |
> |
public void testTryLockWhenReadLocked() throws InterruptedException { |
627 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
628 |
> |
lock.readLock().lock(); |
629 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
630 |
> |
public void realRun() { |
631 |
> |
assertTrue(lock.readLock().tryLock()); |
632 |
> |
lock.readLock().unlock(); |
633 |
> |
}}); |
634 |
|
|
635 |
+ |
awaitTermination(t); |
636 |
+ |
lock.readLock().unlock(); |
637 |
+ |
} |
638 |
|
|
639 |
|
/** |
640 |
|
* write tryLock fails when readlocked |
641 |
|
*/ |
642 |
< |
public void testWriteTryLockWhenReadLocked() { |
643 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
644 |
< |
lock.readLock().lock(); |
645 |
< |
Thread t = new Thread(new Runnable() { |
646 |
< |
public void run() { |
647 |
< |
threadAssertFalse(lock.writeLock().tryLock()); |
648 |
< |
} |
714 |
< |
}); |
715 |
< |
try { |
716 |
< |
t.start(); |
717 |
< |
t.join(); |
718 |
< |
lock.readLock().unlock(); |
719 |
< |
} catch (Exception e){ |
720 |
< |
unexpectedException(); |
721 |
< |
} |
722 |
< |
} |
642 |
> |
public void testWriteTryLockWhenReadLocked() throws InterruptedException { |
643 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
644 |
> |
lock.readLock().lock(); |
645 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
646 |
> |
public void realRun() { |
647 |
> |
assertFalse(lock.writeLock().tryLock()); |
648 |
> |
}}); |
649 |
|
|
650 |
+ |
awaitTermination(t); |
651 |
+ |
lock.readLock().unlock(); |
652 |
+ |
} |
653 |
|
|
654 |
|
/** |
655 |
|
* Fair Read tryLock succeeds if readlocked but not writelocked |
656 |
|
*/ |
657 |
< |
public void testTryLockWhenReadLockedFair() { |
658 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
659 |
< |
lock.readLock().lock(); |
660 |
< |
Thread t = new Thread(new Runnable() { |
661 |
< |
public void run() { |
662 |
< |
threadAssertTrue(lock.readLock().tryLock()); |
663 |
< |
lock.readLock().unlock(); |
664 |
< |
} |
736 |
< |
}); |
737 |
< |
try { |
738 |
< |
t.start(); |
739 |
< |
t.join(); |
740 |
< |
lock.readLock().unlock(); |
741 |
< |
} catch (Exception e){ |
742 |
< |
unexpectedException(); |
743 |
< |
} |
744 |
< |
} |
745 |
< |
|
657 |
> |
public void testTryLockWhenReadLockedFair() throws InterruptedException { |
658 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
659 |
> |
lock.readLock().lock(); |
660 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
661 |
> |
public void realRun() { |
662 |
> |
assertTrue(lock.readLock().tryLock()); |
663 |
> |
lock.readLock().unlock(); |
664 |
> |
}}); |
665 |
|
|
666 |
+ |
awaitTermination(t); |
667 |
+ |
lock.readLock().unlock(); |
668 |
+ |
} |
669 |
|
|
670 |
|
/** |
671 |
|
* Fair write tryLock fails when readlocked |
672 |
|
*/ |
673 |
< |
public void testWriteTryLockWhenReadLockedFair() { |
674 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
675 |
< |
lock.readLock().lock(); |
676 |
< |
Thread t = new Thread(new Runnable() { |
677 |
< |
public void run() { |
678 |
< |
threadAssertFalse(lock.writeLock().tryLock()); |
679 |
< |
} |
758 |
< |
}); |
759 |
< |
try { |
760 |
< |
t.start(); |
761 |
< |
t.join(); |
762 |
< |
lock.readLock().unlock(); |
763 |
< |
} catch (Exception e){ |
764 |
< |
unexpectedException(); |
765 |
< |
} |
766 |
< |
} |
767 |
< |
|
673 |
> |
public void testWriteTryLockWhenReadLockedFair() throws InterruptedException { |
674 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
675 |
> |
lock.readLock().lock(); |
676 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
677 |
> |
public void realRun() { |
678 |
> |
assertFalse(lock.writeLock().tryLock()); |
679 |
> |
}}); |
680 |
|
|
681 |
+ |
awaitTermination(t); |
682 |
+ |
lock.readLock().unlock(); |
683 |
+ |
} |
684 |
|
|
685 |
|
/** |
686 |
|
* write timed tryLock times out if locked |
687 |
|
*/ |
688 |
< |
public void testWriteTryLock_Timeout() { |
689 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
690 |
< |
lock.writeLock().lock(); |
691 |
< |
Thread t = new Thread(new Runnable() { |
692 |
< |
public void run() { |
693 |
< |
try { |
694 |
< |
threadAssertFalse(lock.writeLock().tryLock(1, TimeUnit.MILLISECONDS)); |
695 |
< |
} catch (Exception ex) { |
696 |
< |
threadUnexpectedException(); |
697 |
< |
} |
698 |
< |
} |
784 |
< |
}); |
785 |
< |
try { |
786 |
< |
t.start(); |
787 |
< |
t.join(); |
788 |
< |
lock.writeLock().unlock(); |
789 |
< |
} catch (Exception e){ |
790 |
< |
unexpectedException(); |
791 |
< |
} |
688 |
> |
public void testWriteTryLock_Timeout() throws InterruptedException { |
689 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
690 |
> |
lock.writeLock().lock(); |
691 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
692 |
> |
public void realRun() throws InterruptedException { |
693 |
> |
assertFalse(lock.writeLock().tryLock(1, MILLISECONDS)); |
694 |
> |
}}); |
695 |
> |
|
696 |
> |
awaitTermination(t); |
697 |
> |
assertTrue(lock.writeLock().isHeldByCurrentThread()); |
698 |
> |
lock.writeLock().unlock(); |
699 |
|
} |
700 |
|
|
701 |
|
/** |
702 |
|
* read timed tryLock times out if write-locked |
703 |
|
*/ |
704 |
< |
public void testReadTryLock_Timeout() { |
705 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
706 |
< |
lock.writeLock().lock(); |
707 |
< |
Thread t = new Thread(new Runnable() { |
708 |
< |
public void run() { |
709 |
< |
try { |
710 |
< |
threadAssertFalse(lock.readLock().tryLock(1, TimeUnit.MILLISECONDS)); |
804 |
< |
} catch (Exception ex) { |
805 |
< |
threadUnexpectedException(); |
806 |
< |
} |
807 |
< |
} |
808 |
< |
}); |
809 |
< |
try { |
810 |
< |
t.start(); |
811 |
< |
t.join(); |
812 |
< |
lock.writeLock().unlock(); |
813 |
< |
} catch (Exception e){ |
814 |
< |
unexpectedException(); |
815 |
< |
} |
816 |
< |
} |
704 |
> |
public void testReadTryLock_Timeout() throws InterruptedException { |
705 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
706 |
> |
lock.writeLock().lock(); |
707 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
708 |
> |
public void realRun() throws InterruptedException { |
709 |
> |
assertFalse(lock.readLock().tryLock(1, MILLISECONDS)); |
710 |
> |
}}); |
711 |
|
|
712 |
+ |
awaitTermination(t); |
713 |
+ |
assertTrue(lock.writeLock().isHeldByCurrentThread()); |
714 |
+ |
lock.writeLock().unlock(); |
715 |
+ |
} |
716 |
|
|
717 |
|
/** |
718 |
|
* write lockInterruptibly succeeds if lock free else is interruptible |
719 |
|
*/ |
720 |
< |
public void testWriteLockInterruptibly() { |
721 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
722 |
< |
try { |
723 |
< |
lock.writeLock().lockInterruptibly(); |
724 |
< |
} catch (Exception e) { |
725 |
< |
unexpectedException(); |
726 |
< |
} |
727 |
< |
Thread t = new Thread(new Runnable() { |
728 |
< |
public void run() { |
729 |
< |
try { |
730 |
< |
lock.writeLock().lockInterruptibly(); |
731 |
< |
threadShouldThrow(); |
834 |
< |
} |
835 |
< |
catch (InterruptedException success) { |
836 |
< |
} |
837 |
< |
} |
838 |
< |
}); |
839 |
< |
try { |
840 |
< |
t.start(); |
841 |
< |
Thread.sleep(SHORT_DELAY_MS); |
842 |
< |
t.interrupt(); |
843 |
< |
Thread.sleep(SHORT_DELAY_MS); |
844 |
< |
t.join(); |
845 |
< |
lock.writeLock().unlock(); |
846 |
< |
} catch (Exception e){ |
847 |
< |
unexpectedException(); |
848 |
< |
} |
720 |
> |
public void testWriteLockInterruptibly() throws InterruptedException { |
721 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
722 |
> |
lock.writeLock().lockInterruptibly(); |
723 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
724 |
> |
public void realRun() throws InterruptedException { |
725 |
> |
lock.writeLock().lockInterruptibly(); |
726 |
> |
}}); |
727 |
> |
|
728 |
> |
waitForQueuedThread(lock, t); |
729 |
> |
t.interrupt(); |
730 |
> |
awaitTermination(t); |
731 |
> |
releaseWriteLock(lock); |
732 |
|
} |
733 |
|
|
734 |
|
/** |
735 |
< |
* read lockInterruptibly succeeds if lock free else is interruptible |
735 |
> |
* read lockInterruptibly succeeds if lock free else is interruptible |
736 |
|
*/ |
737 |
< |
public void testReadLockInterruptibly() { |
738 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
739 |
< |
try { |
740 |
< |
lock.writeLock().lockInterruptibly(); |
741 |
< |
} catch (Exception e) { |
742 |
< |
unexpectedException(); |
743 |
< |
} |
744 |
< |
Thread t = new Thread(new Runnable() { |
745 |
< |
public void run() { |
746 |
< |
try { |
747 |
< |
lock.readLock().lockInterruptibly(); |
748 |
< |
threadShouldThrow(); |
866 |
< |
} |
867 |
< |
catch (InterruptedException success) { |
868 |
< |
} |
869 |
< |
} |
870 |
< |
}); |
871 |
< |
try { |
872 |
< |
t.start(); |
873 |
< |
Thread.sleep(SHORT_DELAY_MS); |
874 |
< |
t.interrupt(); |
875 |
< |
t.join(); |
876 |
< |
lock.writeLock().unlock(); |
877 |
< |
} catch (Exception e){ |
878 |
< |
unexpectedException(); |
879 |
< |
} |
737 |
> |
public void testReadLockInterruptibly() throws InterruptedException { |
738 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
739 |
> |
lock.writeLock().lockInterruptibly(); |
740 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
741 |
> |
public void realRun() throws InterruptedException { |
742 |
> |
lock.readLock().lockInterruptibly(); |
743 |
> |
}}); |
744 |
> |
|
745 |
> |
waitForQueuedThread(lock, t); |
746 |
> |
t.interrupt(); |
747 |
> |
awaitTermination(t); |
748 |
> |
releaseWriteLock(lock); |
749 |
|
} |
750 |
|
|
751 |
|
/** |
752 |
|
* Calling await without holding lock throws IllegalMonitorStateException |
753 |
|
*/ |
754 |
< |
public void testAwait_IllegalMonitor() { |
755 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
754 |
> |
public void testAwait_IllegalMonitor() throws InterruptedException { |
755 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
756 |
|
final Condition c = lock.writeLock().newCondition(); |
757 |
|
try { |
758 |
|
c.await(); |
759 |
|
shouldThrow(); |
760 |
< |
} |
761 |
< |
catch (IllegalMonitorStateException success) { |
762 |
< |
} |
894 |
< |
catch (Exception ex) { |
760 |
> |
} catch (IllegalMonitorStateException success) {} |
761 |
> |
try { |
762 |
> |
c.await(LONG_DELAY_MS, MILLISECONDS); |
763 |
|
shouldThrow(); |
764 |
< |
} |
764 |
> |
} catch (IllegalMonitorStateException success) {} |
765 |
> |
try { |
766 |
> |
c.awaitNanos(100); |
767 |
> |
shouldThrow(); |
768 |
> |
} catch (IllegalMonitorStateException success) {} |
769 |
> |
try { |
770 |
> |
c.awaitUninterruptibly(); |
771 |
> |
shouldThrow(); |
772 |
> |
} catch (IllegalMonitorStateException success) {} |
773 |
|
} |
774 |
|
|
775 |
|
/** |
776 |
|
* Calling signal without holding lock throws IllegalMonitorStateException |
777 |
|
*/ |
778 |
|
public void testSignal_IllegalMonitor() { |
779 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
779 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
780 |
|
final Condition c = lock.writeLock().newCondition(); |
781 |
|
try { |
782 |
|
c.signal(); |
783 |
|
shouldThrow(); |
784 |
< |
} |
909 |
< |
catch (IllegalMonitorStateException success) { |
910 |
< |
} |
911 |
< |
catch (Exception ex) { |
912 |
< |
unexpectedException(); |
913 |
< |
} |
784 |
> |
} catch (IllegalMonitorStateException success) {} |
785 |
|
} |
786 |
|
|
787 |
|
/** |
788 |
< |
* awaitNanos without a signal times out |
788 |
> |
* Calling signalAll without holding lock throws IllegalMonitorStateException |
789 |
|
*/ |
790 |
< |
public void testAwaitNanos_Timeout() { |
791 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
790 |
> |
public void testSignalAll_IllegalMonitor() { |
791 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
792 |
|
final Condition c = lock.writeLock().newCondition(); |
793 |
|
try { |
794 |
< |
lock.writeLock().lock(); |
795 |
< |
long t = c.awaitNanos(100); |
796 |
< |
assertTrue(t <= 0); |
926 |
< |
lock.writeLock().unlock(); |
927 |
< |
} |
928 |
< |
catch (Exception ex) { |
929 |
< |
unexpectedException(); |
930 |
< |
} |
794 |
> |
c.signalAll(); |
795 |
> |
shouldThrow(); |
796 |
> |
} catch (IllegalMonitorStateException success) {} |
797 |
|
} |
798 |
|
|
799 |
+ |
/** |
800 |
+ |
* awaitNanos without a signal times out |
801 |
+ |
*/ |
802 |
+ |
public void testAwaitNanos_Timeout() throws InterruptedException { |
803 |
+ |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
804 |
+ |
final Condition c = lock.writeLock().newCondition(); |
805 |
+ |
lock.writeLock().lock(); |
806 |
+ |
long startTime = System.nanoTime(); |
807 |
+ |
long timeoutMillis = 10; |
808 |
+ |
long timeoutNanos = MILLISECONDS.toNanos(timeoutMillis); |
809 |
+ |
long nanosRemaining = c.awaitNanos(timeoutNanos); |
810 |
+ |
assertTrue(nanosRemaining <= 0); |
811 |
+ |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
812 |
+ |
lock.writeLock().unlock(); |
813 |
+ |
} |
814 |
|
|
815 |
|
/** |
816 |
< |
* timed await without a signal times out |
816 |
> |
* timed await without a signal times out |
817 |
|
*/ |
818 |
< |
public void testAwait_Timeout() { |
819 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
818 |
> |
public void testAwait_Timeout() throws InterruptedException { |
819 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
820 |
|
final Condition c = lock.writeLock().newCondition(); |
821 |
< |
try { |
822 |
< |
lock.writeLock().lock(); |
823 |
< |
lock.writeLock().unlock(); |
824 |
< |
} |
825 |
< |
catch (Exception ex) { |
826 |
< |
unexpectedException(); |
946 |
< |
} |
821 |
> |
lock.writeLock().lock(); |
822 |
> |
long startTime = System.nanoTime(); |
823 |
> |
long timeoutMillis = 10; |
824 |
> |
assertFalse(c.await(timeoutMillis, MILLISECONDS)); |
825 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
826 |
> |
lock.writeLock().unlock(); |
827 |
|
} |
828 |
|
|
829 |
|
/** |
830 |
|
* awaitUntil without a signal times out |
831 |
|
*/ |
832 |
< |
public void testAwaitUntil_Timeout() { |
833 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
832 |
> |
public void testAwaitUntil_Timeout() throws InterruptedException { |
833 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
834 |
|
final Condition c = lock.writeLock().newCondition(); |
835 |
< |
try { |
836 |
< |
lock.writeLock().lock(); |
837 |
< |
java.util.Date d = new java.util.Date(); |
838 |
< |
lock.writeLock().unlock(); |
959 |
< |
} |
960 |
< |
catch (Exception ex) { |
961 |
< |
unexpectedException(); |
962 |
< |
} |
835 |
> |
lock.writeLock().lock(); |
836 |
> |
java.util.Date d = new java.util.Date(); |
837 |
> |
assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10))); |
838 |
> |
lock.writeLock().unlock(); |
839 |
|
} |
840 |
|
|
841 |
|
/** |
842 |
|
* await returns when signalled |
843 |
|
*/ |
844 |
< |
public void testAwait() { |
845 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
844 |
> |
public void testAwait() throws InterruptedException { |
845 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
846 |
|
final Condition c = lock.writeLock().newCondition(); |
847 |
< |
Thread t = new Thread(new Runnable() { |
848 |
< |
public void run() { |
849 |
< |
try { |
850 |
< |
lock.writeLock().lock(); |
851 |
< |
c.await(); |
852 |
< |
lock.writeLock().unlock(); |
853 |
< |
} |
854 |
< |
catch (InterruptedException e) { |
979 |
< |
threadUnexpectedException(); |
980 |
< |
} |
981 |
< |
} |
982 |
< |
}); |
983 |
< |
|
984 |
< |
try { |
985 |
< |
t.start(); |
986 |
< |
Thread.sleep(SHORT_DELAY_MS); |
987 |
< |
lock.writeLock().lock(); |
988 |
< |
c.signal(); |
989 |
< |
lock.writeLock().unlock(); |
990 |
< |
t.join(SHORT_DELAY_MS); |
991 |
< |
assertFalse(t.isAlive()); |
992 |
< |
} |
993 |
< |
catch (Exception ex) { |
994 |
< |
unexpectedException(); |
995 |
< |
} |
996 |
< |
} |
997 |
< |
|
998 |
< |
/** A helper class for uninterruptible wait tests */ |
999 |
< |
class UninterruptableThread extends Thread { |
1000 |
< |
private Lock lock; |
1001 |
< |
private Condition c; |
1002 |
< |
|
1003 |
< |
public volatile boolean canAwake = false; |
1004 |
< |
public volatile boolean interrupted = false; |
1005 |
< |
public volatile boolean lockStarted = false; |
1006 |
< |
|
1007 |
< |
public UninterruptableThread(Lock lock, Condition c) { |
1008 |
< |
this.lock = lock; |
1009 |
< |
this.c = c; |
1010 |
< |
} |
1011 |
< |
|
1012 |
< |
public synchronized void run() { |
1013 |
< |
lock.lock(); |
1014 |
< |
lockStarted = true; |
1015 |
< |
|
1016 |
< |
while (!canAwake) { |
1017 |
< |
c.awaitUninterruptibly(); |
1018 |
< |
} |
847 |
> |
final CountDownLatch locked = new CountDownLatch(1); |
848 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
849 |
> |
public void realRun() throws InterruptedException { |
850 |
> |
lock.writeLock().lock(); |
851 |
> |
locked.countDown(); |
852 |
> |
c.await(); |
853 |
> |
lock.writeLock().unlock(); |
854 |
> |
}}); |
855 |
|
|
856 |
< |
interrupted = isInterrupted(); |
857 |
< |
lock.unlock(); |
858 |
< |
} |
856 |
> |
locked.await(); |
857 |
> |
lock.writeLock().lock(); |
858 |
> |
c.signal(); |
859 |
> |
assertTrue(t.isAlive()); |
860 |
> |
lock.writeLock().unlock(); |
861 |
> |
awaitTermination(t); |
862 |
|
} |
863 |
|
|
864 |
|
/** |
865 |
|
* awaitUninterruptibly doesn't abort on interrupt |
866 |
|
*/ |
867 |
< |
public void testAwaitUninterruptibly() { |
867 |
> |
public void testAwaitUninterruptibly() throws InterruptedException { |
868 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
869 |
|
final Condition c = lock.writeLock().newCondition(); |
870 |
< |
UninterruptableThread thread = new UninterruptableThread(lock.writeLock(), c); |
871 |
< |
|
872 |
< |
try { |
873 |
< |
thread.start(); |
874 |
< |
|
875 |
< |
while (!thread.lockStarted) { |
876 |
< |
Thread.sleep(100); |
877 |
< |
} |
1039 |
< |
|
1040 |
< |
lock.writeLock().lock(); |
1041 |
< |
try { |
1042 |
< |
thread.interrupt(); |
1043 |
< |
thread.canAwake = true; |
1044 |
< |
c.signal(); |
1045 |
< |
} finally { |
870 |
> |
final CountDownLatch locked = new CountDownLatch(1); |
871 |
> |
final AtomicBoolean canAwake = new AtomicBoolean(false); |
872 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
873 |
> |
public void realRun() { |
874 |
> |
lock.writeLock().lock(); |
875 |
> |
locked.countDown(); |
876 |
> |
c.awaitUninterruptibly(); |
877 |
> |
assertTrue(Thread.interrupted()); |
878 |
|
lock.writeLock().unlock(); |
879 |
< |
} |
879 |
> |
}}); |
880 |
|
|
881 |
< |
thread.join(); |
882 |
< |
assertTrue(thread.interrupted); |
883 |
< |
assertFalse(thread.isAlive()); |
884 |
< |
} catch (Exception ex) { |
885 |
< |
unexpectedException(); |
886 |
< |
} |
881 |
> |
locked.await(); |
882 |
> |
lock.writeLock().lock(); |
883 |
> |
lock.writeLock().unlock(); |
884 |
> |
t.interrupt(); |
885 |
> |
t.join(10); |
886 |
> |
assertTrue(t.isAlive()); |
887 |
> |
lock.writeLock().lock(); |
888 |
> |
c.signal(); |
889 |
> |
lock.writeLock().unlock(); |
890 |
> |
awaitTermination(t); |
891 |
|
} |
892 |
|
|
893 |
|
/** |
894 |
|
* await is interruptible |
895 |
|
*/ |
896 |
< |
public void testAwait_Interrupt() { |
897 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
896 |
> |
public void testAwait_Interrupt() throws InterruptedException { |
897 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
898 |
|
final Condition c = lock.writeLock().newCondition(); |
899 |
< |
Thread t = new Thread(new Runnable() { |
900 |
< |
public void run() { |
901 |
< |
try { |
902 |
< |
lock.writeLock().lock(); |
903 |
< |
c.await(); |
904 |
< |
lock.writeLock().unlock(); |
905 |
< |
threadShouldThrow(); |
906 |
< |
} |
907 |
< |
catch (InterruptedException success) { |
908 |
< |
} |
909 |
< |
} |
910 |
< |
}); |
911 |
< |
|
912 |
< |
try { |
913 |
< |
t.start(); |
914 |
< |
Thread.sleep(SHORT_DELAY_MS); |
915 |
< |
t.interrupt(); |
916 |
< |
t.join(SHORT_DELAY_MS); |
917 |
< |
assertFalse(t.isAlive()); |
918 |
< |
} |
919 |
< |
catch (Exception ex) { |
920 |
< |
unexpectedException(); |
921 |
< |
} |
899 |
> |
final CountDownLatch locked = new CountDownLatch(1); |
900 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
901 |
> |
public void realRun() throws InterruptedException { |
902 |
> |
lock.writeLock().lock(); |
903 |
> |
assertTrue(lock.isWriteLocked()); |
904 |
> |
assertTrue(lock.isWriteLockedByCurrentThread()); |
905 |
> |
assertHasNoWaiters(lock, c); |
906 |
> |
locked.countDown(); |
907 |
> |
try { |
908 |
> |
c.await(); |
909 |
> |
} finally { |
910 |
> |
assertTrue(lock.isWriteLocked()); |
911 |
> |
assertTrue(lock.isWriteLockedByCurrentThread()); |
912 |
> |
assertHasNoWaiters(lock, c); |
913 |
> |
lock.writeLock().unlock(); |
914 |
> |
assertFalse(Thread.interrupted()); |
915 |
> |
} |
916 |
> |
}}); |
917 |
> |
|
918 |
> |
locked.await(); |
919 |
> |
assertHasWaiters(lock, c, t); |
920 |
> |
t.interrupt(); |
921 |
> |
awaitTermination(t); |
922 |
> |
assertFalse(lock.isWriteLocked()); |
923 |
|
} |
924 |
|
|
925 |
|
/** |
926 |
|
* awaitNanos is interruptible |
927 |
|
*/ |
928 |
< |
public void testAwaitNanos_Interrupt() { |
929 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
928 |
> |
public void testAwaitNanos_Interrupt() throws InterruptedException { |
929 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
930 |
|
final Condition c = lock.writeLock().newCondition(); |
931 |
< |
Thread t = new Thread(new Runnable() { |
932 |
< |
public void run() { |
933 |
< |
try { |
934 |
< |
lock.writeLock().lock(); |
935 |
< |
c.awaitNanos(SHORT_DELAY_MS * 2 * 1000000); |
936 |
< |
lock.writeLock().unlock(); |
937 |
< |
threadShouldThrow(); |
938 |
< |
} |
939 |
< |
catch (InterruptedException success) { |
940 |
< |
} |
941 |
< |
} |
942 |
< |
}); |
943 |
< |
|
944 |
< |
try { |
945 |
< |
t.start(); |
946 |
< |
Thread.sleep(SHORT_DELAY_MS); |
947 |
< |
t.interrupt(); |
948 |
< |
t.join(SHORT_DELAY_MS); |
949 |
< |
assertFalse(t.isAlive()); |
950 |
< |
} |
951 |
< |
catch (Exception ex) { |
952 |
< |
unexpectedException(); |
953 |
< |
} |
931 |
> |
final CountDownLatch locked = new CountDownLatch(1); |
932 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
933 |
> |
public void realRun() throws InterruptedException { |
934 |
> |
lock.writeLock().lock(); |
935 |
> |
assertTrue(lock.isWriteLocked()); |
936 |
> |
assertTrue(lock.isWriteLockedByCurrentThread()); |
937 |
> |
assertHasNoWaiters(lock, c); |
938 |
> |
locked.countDown(); |
939 |
> |
try { |
940 |
> |
c.awaitNanos(MILLISECONDS.toNanos(LONG_DELAY_MS)); |
941 |
> |
} finally { |
942 |
> |
assertTrue(lock.isWriteLocked()); |
943 |
> |
assertTrue(lock.isWriteLockedByCurrentThread()); |
944 |
> |
assertHasNoWaiters(lock, c); |
945 |
> |
lock.writeLock().unlock(); |
946 |
> |
assertFalse(Thread.interrupted()); |
947 |
> |
} |
948 |
> |
}}); |
949 |
> |
|
950 |
> |
locked.await(); |
951 |
> |
assertHasWaiters(lock, c, t); |
952 |
> |
t.interrupt(); |
953 |
> |
awaitTermination(t); |
954 |
> |
assertFalse(lock.isWriteLocked()); |
955 |
|
} |
956 |
|
|
957 |
|
/** |
958 |
|
* awaitUntil is interruptible |
959 |
|
*/ |
960 |
< |
public void testAwaitUntil_Interrupt() { |
961 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
960 |
> |
public void testAwaitUntil_Interrupt() throws InterruptedException { |
961 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
962 |
|
final Condition c = lock.writeLock().newCondition(); |
963 |
< |
Thread t = new Thread(new Runnable() { |
964 |
< |
public void run() { |
965 |
< |
try { |
966 |
< |
lock.writeLock().lock(); |
967 |
< |
java.util.Date d = new java.util.Date(); |
968 |
< |
c.awaitUntil(new java.util.Date(d.getTime() + 10000)); |
969 |
< |
lock.writeLock().unlock(); |
970 |
< |
threadShouldThrow(); |
971 |
< |
} |
972 |
< |
catch (InterruptedException success) { |
973 |
< |
} |
974 |
< |
} |
975 |
< |
}); |
976 |
< |
|
977 |
< |
try { |
978 |
< |
t.start(); |
979 |
< |
Thread.sleep(SHORT_DELAY_MS); |
980 |
< |
t.interrupt(); |
981 |
< |
t.join(SHORT_DELAY_MS); |
982 |
< |
assertFalse(t.isAlive()); |
983 |
< |
} |
984 |
< |
catch (Exception ex) { |
985 |
< |
unexpectedException(); |
986 |
< |
} |
963 |
> |
final CountDownLatch locked = new CountDownLatch(1); |
964 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
965 |
> |
public void realRun() throws InterruptedException { |
966 |
> |
lock.writeLock().lock(); |
967 |
> |
assertTrue(lock.isWriteLocked()); |
968 |
> |
assertTrue(lock.isWriteLockedByCurrentThread()); |
969 |
> |
assertHasNoWaiters(lock, c); |
970 |
> |
locked.countDown(); |
971 |
> |
java.util.Date d = new java.util.Date(); |
972 |
> |
try { |
973 |
> |
c.awaitUntil(new java.util.Date(d.getTime() + 10000)); |
974 |
> |
} finally { |
975 |
> |
assertTrue(lock.isWriteLocked()); |
976 |
> |
assertTrue(lock.isWriteLockedByCurrentThread()); |
977 |
> |
assertHasNoWaiters(lock, c); |
978 |
> |
lock.writeLock().unlock(); |
979 |
> |
assertFalse(Thread.interrupted()); |
980 |
> |
} |
981 |
> |
}}); |
982 |
> |
|
983 |
> |
locked.await(); |
984 |
> |
assertHasWaiters(lock, c, t); |
985 |
> |
t.interrupt(); |
986 |
> |
awaitTermination(t); |
987 |
> |
assertFalse(lock.isWriteLocked()); |
988 |
|
} |
989 |
|
|
990 |
|
/** |
991 |
|
* signalAll wakes up all threads |
992 |
|
*/ |
993 |
< |
public void testSignalAll() { |
994 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
993 |
> |
public void testSignalAll() throws InterruptedException { |
994 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
995 |
|
final Condition c = lock.writeLock().newCondition(); |
996 |
< |
Thread t1 = new Thread(new Runnable() { |
997 |
< |
public void run() { |
998 |
< |
try { |
999 |
< |
lock.writeLock().lock(); |
1000 |
< |
c.await(); |
1001 |
< |
lock.writeLock().unlock(); |
1002 |
< |
} |
1003 |
< |
catch (InterruptedException e) { |
1004 |
< |
threadUnexpectedException(); |
1005 |
< |
} |
1006 |
< |
} |
1007 |
< |
}); |
1008 |
< |
|
1009 |
< |
Thread t2 = new Thread(new Runnable() { |
1010 |
< |
public void run() { |
1011 |
< |
try { |
1012 |
< |
lock.writeLock().lock(); |
1013 |
< |
c.await(); |
1014 |
< |
lock.writeLock().unlock(); |
1015 |
< |
} |
1016 |
< |
catch (InterruptedException e) { |
1017 |
< |
threadUnexpectedException(); |
1018 |
< |
} |
1019 |
< |
} |
1020 |
< |
}); |
996 |
> |
final CountDownLatch locked = new CountDownLatch(2); |
997 |
> |
final Lock writeLock = lock.writeLock(); |
998 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
999 |
> |
public void realRun() throws InterruptedException { |
1000 |
> |
writeLock.lock(); |
1001 |
> |
locked.countDown(); |
1002 |
> |
c.await(); |
1003 |
> |
writeLock.unlock(); |
1004 |
> |
}}); |
1005 |
> |
|
1006 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
1007 |
> |
public void realRun() throws InterruptedException { |
1008 |
> |
writeLock.lock(); |
1009 |
> |
locked.countDown(); |
1010 |
> |
c.await(); |
1011 |
> |
writeLock.unlock(); |
1012 |
> |
}}); |
1013 |
> |
|
1014 |
> |
locked.await(); |
1015 |
> |
writeLock.lock(); |
1016 |
> |
assertHasWaiters(lock, c, t1, t2); |
1017 |
> |
c.signalAll(); |
1018 |
> |
assertHasNoWaiters(lock, c); |
1019 |
> |
writeLock.unlock(); |
1020 |
> |
awaitTermination(t1); |
1021 |
> |
awaitTermination(t2); |
1022 |
> |
} |
1023 |
|
|
1024 |
< |
try { |
1025 |
< |
t1.start(); |
1026 |
< |
t2.start(); |
1027 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1028 |
< |
lock.writeLock().lock(); |
1029 |
< |
c.signalAll(); |
1030 |
< |
lock.writeLock().unlock(); |
1031 |
< |
t1.join(SHORT_DELAY_MS); |
1032 |
< |
t2.join(SHORT_DELAY_MS); |
1033 |
< |
assertFalse(t1.isAlive()); |
1034 |
< |
assertFalse(t2.isAlive()); |
1035 |
< |
} |
1036 |
< |
catch (Exception ex) { |
1037 |
< |
unexpectedException(); |
1038 |
< |
} |
1024 |
> |
/** |
1025 |
> |
* signal wakes up waiting threads in FIFO order. |
1026 |
> |
*/ |
1027 |
> |
public void testSignalWakesFifo() throws InterruptedException { |
1028 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1029 |
> |
final Condition c = lock.writeLock().newCondition(); |
1030 |
> |
final CountDownLatch locked1 = new CountDownLatch(1); |
1031 |
> |
final CountDownLatch locked2 = new CountDownLatch(1); |
1032 |
> |
final Lock writeLock = lock.writeLock(); |
1033 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
1034 |
> |
public void realRun() throws InterruptedException { |
1035 |
> |
writeLock.lock(); |
1036 |
> |
locked1.countDown(); |
1037 |
> |
c.await(); |
1038 |
> |
writeLock.unlock(); |
1039 |
> |
}}); |
1040 |
> |
|
1041 |
> |
locked1.await(); |
1042 |
> |
|
1043 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
1044 |
> |
public void realRun() throws InterruptedException { |
1045 |
> |
writeLock.lock(); |
1046 |
> |
locked2.countDown(); |
1047 |
> |
c.await(); |
1048 |
> |
writeLock.unlock(); |
1049 |
> |
}}); |
1050 |
> |
|
1051 |
> |
locked2.await(); |
1052 |
> |
|
1053 |
> |
writeLock.lock(); |
1054 |
> |
assertHasWaiters(lock, c, t1, t2); |
1055 |
> |
assertFalse(lock.hasQueuedThreads()); |
1056 |
> |
c.signal(); |
1057 |
> |
assertHasWaiters(lock, c, t2); |
1058 |
> |
assertTrue(lock.hasQueuedThread(t1)); |
1059 |
> |
assertFalse(lock.hasQueuedThread(t2)); |
1060 |
> |
c.signal(); |
1061 |
> |
assertHasNoWaiters(lock, c); |
1062 |
> |
assertTrue(lock.hasQueuedThread(t1)); |
1063 |
> |
assertTrue(lock.hasQueuedThread(t2)); |
1064 |
> |
writeLock.unlock(); |
1065 |
> |
awaitTermination(t1); |
1066 |
> |
awaitTermination(t2); |
1067 |
|
} |
1068 |
|
|
1069 |
|
/** |
1070 |
|
* A serialized lock deserializes as unlocked |
1071 |
|
*/ |
1072 |
< |
public void testSerialization() { |
1072 |
> |
public void testSerialization() throws Exception { |
1073 |
|
ReentrantReadWriteLock l = new ReentrantReadWriteLock(); |
1074 |
|
l.readLock().lock(); |
1075 |
|
l.readLock().unlock(); |
1076 |
|
|
1077 |
< |
try { |
1078 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
1079 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
1080 |
< |
out.writeObject(l); |
1081 |
< |
out.close(); |
1082 |
< |
|
1083 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
1084 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
1085 |
< |
ReentrantReadWriteLock r = (ReentrantReadWriteLock) in.readObject(); |
1086 |
< |
r.readLock().lock(); |
1218 |
< |
r.readLock().unlock(); |
1219 |
< |
} catch (Exception e){ |
1220 |
< |
e.printStackTrace(); |
1221 |
< |
unexpectedException(); |
1222 |
< |
} |
1077 |
> |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
1078 |
> |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
1079 |
> |
out.writeObject(l); |
1080 |
> |
out.close(); |
1081 |
> |
|
1082 |
> |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
1083 |
> |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
1084 |
> |
ReentrantReadWriteLock r = (ReentrantReadWriteLock) in.readObject(); |
1085 |
> |
r.readLock().lock(); |
1086 |
> |
r.readLock().unlock(); |
1087 |
|
} |
1088 |
|
|
1089 |
|
/** |
1090 |
|
* hasQueuedThreads reports whether there are waiting threads |
1091 |
|
*/ |
1092 |
< |
public void testhasQueuedThreads() { |
1093 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1092 |
> |
public void testhasQueuedThreads() throws InterruptedException { |
1093 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1094 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
1095 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
1096 |
< |
try { |
1097 |
< |
assertFalse(lock.hasQueuedThreads()); |
1098 |
< |
lock.writeLock().lock(); |
1099 |
< |
t1.start(); |
1100 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1101 |
< |
assertTrue(lock.hasQueuedThreads()); |
1102 |
< |
t2.start(); |
1103 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1104 |
< |
assertTrue(lock.hasQueuedThreads()); |
1105 |
< |
t1.interrupt(); |
1106 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1107 |
< |
assertTrue(lock.hasQueuedThreads()); |
1108 |
< |
lock.writeLock().unlock(); |
1109 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1110 |
< |
assertFalse(lock.hasQueuedThreads()); |
1247 |
< |
t1.join(); |
1248 |
< |
t2.join(); |
1249 |
< |
} catch (Exception e){ |
1250 |
< |
unexpectedException(); |
1251 |
< |
} |
1096 |
> |
assertFalse(lock.hasQueuedThreads()); |
1097 |
> |
lock.writeLock().lock(); |
1098 |
> |
assertFalse(lock.hasQueuedThreads()); |
1099 |
> |
long startTime = System.nanoTime(); |
1100 |
> |
t1.start(); |
1101 |
> |
waitForQueuedThread(lock, t1); |
1102 |
> |
t2.start(); |
1103 |
> |
waitForQueuedThread(lock, t2); |
1104 |
> |
assertTrue(lock.hasQueuedThreads()); |
1105 |
> |
t1.interrupt(); |
1106 |
> |
awaitTermination(t1); |
1107 |
> |
assertTrue(lock.hasQueuedThreads()); |
1108 |
> |
lock.writeLock().unlock(); |
1109 |
> |
awaitTermination(t2); |
1110 |
> |
assertFalse(lock.hasQueuedThreads()); |
1111 |
|
} |
1112 |
|
|
1113 |
|
/** |
1114 |
|
* hasQueuedThread(null) throws NPE |
1115 |
|
*/ |
1116 |
|
public void testHasQueuedThreadNPE() { |
1117 |
< |
final ReentrantReadWriteLock sync = new ReentrantReadWriteLock(); |
1117 |
> |
final ReentrantReadWriteLock sync = new ReentrantReadWriteLock(); |
1118 |
|
try { |
1119 |
|
sync.hasQueuedThread(null); |
1120 |
|
shouldThrow(); |
1121 |
< |
} catch (NullPointerException success) { |
1263 |
< |
} |
1121 |
> |
} catch (NullPointerException success) {} |
1122 |
|
} |
1123 |
|
|
1124 |
|
/** |
1125 |
|
* hasQueuedThread reports whether a thread is queued. |
1126 |
|
*/ |
1127 |
< |
public void testHasQueuedThread() { |
1128 |
< |
final ReentrantReadWriteLock sync = new ReentrantReadWriteLock(); |
1129 |
< |
Thread t1 = new Thread(new InterruptedLockRunnable(sync)); |
1130 |
< |
Thread t2 = new Thread(new InterruptibleLockRunnable(sync)); |
1131 |
< |
try { |
1132 |
< |
assertFalse(sync.hasQueuedThread(t1)); |
1133 |
< |
assertFalse(sync.hasQueuedThread(t2)); |
1134 |
< |
sync.writeLock().lock(); |
1135 |
< |
t1.start(); |
1136 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1137 |
< |
assertTrue(sync.hasQueuedThread(t1)); |
1138 |
< |
t2.start(); |
1139 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1140 |
< |
assertTrue(sync.hasQueuedThread(t1)); |
1141 |
< |
assertTrue(sync.hasQueuedThread(t2)); |
1142 |
< |
t1.interrupt(); |
1143 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1144 |
< |
assertFalse(sync.hasQueuedThread(t1)); |
1145 |
< |
assertTrue(sync.hasQueuedThread(t2)); |
1146 |
< |
sync.writeLock().unlock(); |
1147 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1148 |
< |
assertFalse(sync.hasQueuedThread(t1)); |
1149 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1150 |
< |
assertFalse(sync.hasQueuedThread(t2)); |
1293 |
< |
t1.join(); |
1294 |
< |
t2.join(); |
1295 |
< |
} catch (Exception e){ |
1296 |
< |
unexpectedException(); |
1297 |
< |
} |
1127 |
> |
public void testHasQueuedThread() throws InterruptedException { |
1128 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1129 |
> |
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
1130 |
> |
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
1131 |
> |
assertFalse(lock.hasQueuedThread(t1)); |
1132 |
> |
assertFalse(lock.hasQueuedThread(t2)); |
1133 |
> |
lock.writeLock().lock(); |
1134 |
> |
long startTime = System.nanoTime(); |
1135 |
> |
t1.start(); |
1136 |
> |
waitForQueuedThread(lock, t1); |
1137 |
> |
assertTrue(lock.hasQueuedThread(t1)); |
1138 |
> |
assertFalse(lock.hasQueuedThread(t2)); |
1139 |
> |
t2.start(); |
1140 |
> |
waitForQueuedThread(lock, t2); |
1141 |
> |
assertTrue(lock.hasQueuedThread(t1)); |
1142 |
> |
assertTrue(lock.hasQueuedThread(t2)); |
1143 |
> |
t1.interrupt(); |
1144 |
> |
awaitTermination(t1); |
1145 |
> |
assertFalse(lock.hasQueuedThread(t1)); |
1146 |
> |
assertTrue(lock.hasQueuedThread(t2)); |
1147 |
> |
lock.writeLock().unlock(); |
1148 |
> |
awaitTermination(t2); |
1149 |
> |
assertFalse(lock.hasQueuedThread(t1)); |
1150 |
> |
assertFalse(lock.hasQueuedThread(t2)); |
1151 |
|
} |
1152 |
|
|
1300 |
– |
|
1153 |
|
/** |
1154 |
|
* getQueueLength reports number of waiting threads |
1155 |
|
*/ |
1156 |
< |
public void testGetQueueLength() { |
1157 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1156 |
> |
public void testGetQueueLength() throws InterruptedException { |
1157 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1158 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
1159 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
1160 |
< |
try { |
1161 |
< |
assertEquals(0, lock.getQueueLength()); |
1162 |
< |
lock.writeLock().lock(); |
1163 |
< |
t1.start(); |
1164 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1165 |
< |
assertEquals(1, lock.getQueueLength()); |
1166 |
< |
t2.start(); |
1167 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1168 |
< |
assertEquals(2, lock.getQueueLength()); |
1169 |
< |
t1.interrupt(); |
1170 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1171 |
< |
assertEquals(1, lock.getQueueLength()); |
1172 |
< |
lock.writeLock().unlock(); |
1173 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1174 |
< |
assertEquals(0, lock.getQueueLength()); |
1323 |
< |
t1.join(); |
1324 |
< |
t2.join(); |
1325 |
< |
} catch (Exception e){ |
1326 |
< |
unexpectedException(); |
1327 |
< |
} |
1160 |
> |
assertEquals(0, lock.getQueueLength()); |
1161 |
> |
lock.writeLock().lock(); |
1162 |
> |
long startTime = System.nanoTime(); |
1163 |
> |
t1.start(); |
1164 |
> |
waitForQueuedThread(lock, t1); |
1165 |
> |
assertEquals(1, lock.getQueueLength()); |
1166 |
> |
t2.start(); |
1167 |
> |
waitForQueuedThread(lock, t2); |
1168 |
> |
assertEquals(2, lock.getQueueLength()); |
1169 |
> |
t1.interrupt(); |
1170 |
> |
awaitTermination(t1); |
1171 |
> |
assertEquals(1, lock.getQueueLength()); |
1172 |
> |
lock.writeLock().unlock(); |
1173 |
> |
awaitTermination(t2); |
1174 |
> |
assertEquals(0, lock.getQueueLength()); |
1175 |
|
} |
1176 |
|
|
1177 |
|
/** |
1178 |
|
* getQueuedThreads includes waiting threads |
1179 |
|
*/ |
1180 |
< |
public void testGetQueuedThreads() { |
1181 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1180 |
> |
public void testGetQueuedThreads() throws InterruptedException { |
1181 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1182 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
1183 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
1184 |
< |
try { |
1185 |
< |
assertTrue(lock.getQueuedThreads().isEmpty()); |
1186 |
< |
lock.writeLock().lock(); |
1187 |
< |
assertTrue(lock.getQueuedThreads().isEmpty()); |
1188 |
< |
t1.start(); |
1189 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1190 |
< |
assertTrue(lock.getQueuedThreads().contains(t1)); |
1191 |
< |
t2.start(); |
1192 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1193 |
< |
assertTrue(lock.getQueuedThreads().contains(t1)); |
1194 |
< |
assertTrue(lock.getQueuedThreads().contains(t2)); |
1195 |
< |
t1.interrupt(); |
1196 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1197 |
< |
assertFalse(lock.getQueuedThreads().contains(t1)); |
1198 |
< |
assertTrue(lock.getQueuedThreads().contains(t2)); |
1199 |
< |
lock.writeLock().unlock(); |
1200 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1201 |
< |
assertTrue(lock.getQueuedThreads().isEmpty()); |
1202 |
< |
t1.join(); |
1203 |
< |
t2.join(); |
1204 |
< |
} catch (Exception e){ |
1358 |
< |
unexpectedException(); |
1359 |
< |
} |
1184 |
> |
assertTrue(lock.getQueuedThreads().isEmpty()); |
1185 |
> |
lock.writeLock().lock(); |
1186 |
> |
long startTime = System.nanoTime(); |
1187 |
> |
assertTrue(lock.getQueuedThreads().isEmpty()); |
1188 |
> |
t1.start(); |
1189 |
> |
waitForQueuedThread(lock, t1); |
1190 |
> |
assertEquals(1, lock.getQueuedThreads().size()); |
1191 |
> |
assertTrue(lock.getQueuedThreads().contains(t1)); |
1192 |
> |
t2.start(); |
1193 |
> |
waitForQueuedThread(lock, t2); |
1194 |
> |
assertEquals(2, lock.getQueuedThreads().size()); |
1195 |
> |
assertTrue(lock.getQueuedThreads().contains(t1)); |
1196 |
> |
assertTrue(lock.getQueuedThreads().contains(t2)); |
1197 |
> |
t1.interrupt(); |
1198 |
> |
awaitTermination(t1); |
1199 |
> |
assertFalse(lock.getQueuedThreads().contains(t1)); |
1200 |
> |
assertTrue(lock.getQueuedThreads().contains(t2)); |
1201 |
> |
assertEquals(1, lock.getQueuedThreads().size()); |
1202 |
> |
lock.writeLock().unlock(); |
1203 |
> |
awaitTermination(t2); |
1204 |
> |
assertTrue(lock.getQueuedThreads().isEmpty()); |
1205 |
|
} |
1206 |
|
|
1207 |
|
/** |
1208 |
|
* hasWaiters throws NPE if null |
1209 |
|
*/ |
1210 |
|
public void testHasWaitersNPE() { |
1211 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1211 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1212 |
|
try { |
1213 |
|
lock.hasWaiters(null); |
1214 |
|
shouldThrow(); |
1215 |
< |
} catch (NullPointerException success) { |
1371 |
< |
} catch (Exception ex) { |
1372 |
< |
unexpectedException(); |
1373 |
< |
} |
1215 |
> |
} catch (NullPointerException success) {} |
1216 |
|
} |
1217 |
|
|
1218 |
|
/** |
1219 |
|
* getWaitQueueLength throws NPE if null |
1220 |
|
*/ |
1221 |
|
public void testGetWaitQueueLengthNPE() { |
1222 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1222 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1223 |
|
try { |
1224 |
|
lock.getWaitQueueLength(null); |
1225 |
|
shouldThrow(); |
1226 |
< |
} catch (NullPointerException success) { |
1385 |
< |
} catch (Exception ex) { |
1386 |
< |
unexpectedException(); |
1387 |
< |
} |
1226 |
> |
} catch (NullPointerException success) {} |
1227 |
|
} |
1228 |
|
|
1390 |
– |
|
1229 |
|
/** |
1230 |
|
* getWaitingThreads throws NPE if null |
1231 |
|
*/ |
1232 |
|
public void testGetWaitingThreadsNPE() { |
1233 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1233 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1234 |
|
try { |
1235 |
|
lock.getWaitingThreads(null); |
1236 |
|
shouldThrow(); |
1237 |
< |
} catch (NullPointerException success) { |
1400 |
< |
} catch (Exception ex) { |
1401 |
< |
unexpectedException(); |
1402 |
< |
} |
1237 |
> |
} catch (NullPointerException success) {} |
1238 |
|
} |
1239 |
|
|
1240 |
|
/** |
1241 |
|
* hasWaiters throws IAE if not owned |
1242 |
|
*/ |
1243 |
|
public void testHasWaitersIAE() { |
1244 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1245 |
< |
final Condition c = (lock.writeLock().newCondition()); |
1246 |
< |
final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(); |
1244 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1245 |
> |
final Condition c = lock.writeLock().newCondition(); |
1246 |
> |
final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(); |
1247 |
|
try { |
1248 |
|
lock2.hasWaiters(c); |
1249 |
|
shouldThrow(); |
1250 |
< |
} catch (IllegalArgumentException success) { |
1416 |
< |
} catch (Exception ex) { |
1417 |
< |
unexpectedException(); |
1418 |
< |
} |
1250 |
> |
} catch (IllegalArgumentException success) {} |
1251 |
|
} |
1252 |
|
|
1253 |
|
/** |
1254 |
|
* hasWaiters throws IMSE if not locked |
1255 |
|
*/ |
1256 |
|
public void testHasWaitersIMSE() { |
1257 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1258 |
< |
final Condition c = (lock.writeLock().newCondition()); |
1257 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1258 |
> |
final Condition c = lock.writeLock().newCondition(); |
1259 |
|
try { |
1260 |
|
lock.hasWaiters(c); |
1261 |
|
shouldThrow(); |
1262 |
< |
} catch (IllegalMonitorStateException success) { |
1431 |
< |
} catch (Exception ex) { |
1432 |
< |
unexpectedException(); |
1433 |
< |
} |
1262 |
> |
} catch (IllegalMonitorStateException success) {} |
1263 |
|
} |
1264 |
|
|
1436 |
– |
|
1265 |
|
/** |
1266 |
|
* getWaitQueueLength throws IAE if not owned |
1267 |
|
*/ |
1268 |
|
public void testGetWaitQueueLengthIAE() { |
1269 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1270 |
< |
final Condition c = (lock.writeLock().newCondition()); |
1271 |
< |
final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(); |
1269 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1270 |
> |
final Condition c = lock.writeLock().newCondition(); |
1271 |
> |
final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(); |
1272 |
|
try { |
1273 |
|
lock2.getWaitQueueLength(c); |
1274 |
|
shouldThrow(); |
1275 |
< |
} catch (IllegalArgumentException success) { |
1448 |
< |
} catch (Exception ex) { |
1449 |
< |
unexpectedException(); |
1450 |
< |
} |
1275 |
> |
} catch (IllegalArgumentException success) {} |
1276 |
|
} |
1277 |
|
|
1278 |
|
/** |
1279 |
|
* getWaitQueueLength throws IMSE if not locked |
1280 |
|
*/ |
1281 |
|
public void testGetWaitQueueLengthIMSE() { |
1282 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1283 |
< |
final Condition c = (lock.writeLock().newCondition()); |
1282 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1283 |
> |
final Condition c = lock.writeLock().newCondition(); |
1284 |
|
try { |
1285 |
|
lock.getWaitQueueLength(c); |
1286 |
|
shouldThrow(); |
1287 |
< |
} catch (IllegalMonitorStateException success) { |
1463 |
< |
} catch (Exception ex) { |
1464 |
< |
unexpectedException(); |
1465 |
< |
} |
1287 |
> |
} catch (IllegalMonitorStateException success) {} |
1288 |
|
} |
1289 |
|
|
1468 |
– |
|
1290 |
|
/** |
1291 |
|
* getWaitingThreads throws IAE if not owned |
1292 |
|
*/ |
1293 |
|
public void testGetWaitingThreadsIAE() { |
1294 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1295 |
< |
final Condition c = (lock.writeLock().newCondition()); |
1296 |
< |
final PublicReentrantReadWriteLock lock2 = new PublicReentrantReadWriteLock(); |
1294 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1295 |
> |
final Condition c = lock.writeLock().newCondition(); |
1296 |
> |
final PublicReentrantReadWriteLock lock2 = new PublicReentrantReadWriteLock(); |
1297 |
|
try { |
1298 |
|
lock2.getWaitingThreads(c); |
1299 |
|
shouldThrow(); |
1300 |
< |
} catch (IllegalArgumentException success) { |
1480 |
< |
} catch (Exception ex) { |
1481 |
< |
unexpectedException(); |
1482 |
< |
} |
1300 |
> |
} catch (IllegalArgumentException success) {} |
1301 |
|
} |
1302 |
|
|
1303 |
|
/** |
1304 |
|
* getWaitingThreads throws IMSE if not locked |
1305 |
|
*/ |
1306 |
|
public void testGetWaitingThreadsIMSE() { |
1307 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1308 |
< |
final Condition c = (lock.writeLock().newCondition()); |
1307 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1308 |
> |
final Condition c = lock.writeLock().newCondition(); |
1309 |
|
try { |
1310 |
|
lock.getWaitingThreads(c); |
1311 |
|
shouldThrow(); |
1312 |
< |
} catch (IllegalMonitorStateException success) { |
1495 |
< |
} catch (Exception ex) { |
1496 |
< |
unexpectedException(); |
1497 |
< |
} |
1312 |
> |
} catch (IllegalMonitorStateException success) {} |
1313 |
|
} |
1314 |
|
|
1500 |
– |
|
1315 |
|
/** |
1316 |
|
* hasWaiters returns true when a thread is waiting, else false |
1317 |
|
*/ |
1318 |
< |
public void testHasWaiters() { |
1319 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1320 |
< |
final Condition c = (lock.writeLock().newCondition()); |
1321 |
< |
Thread t = new Thread(new Runnable() { |
1322 |
< |
public void run() { |
1323 |
< |
try { |
1324 |
< |
lock.writeLock().lock(); |
1325 |
< |
threadAssertFalse(lock.hasWaiters(c)); |
1326 |
< |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
1327 |
< |
c.await(); |
1328 |
< |
lock.writeLock().unlock(); |
1329 |
< |
} |
1330 |
< |
catch (InterruptedException e) { |
1517 |
< |
threadUnexpectedException(); |
1518 |
< |
} |
1519 |
< |
} |
1520 |
< |
}); |
1318 |
> |
public void testHasWaiters() throws InterruptedException { |
1319 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1320 |
> |
final Condition c = lock.writeLock().newCondition(); |
1321 |
> |
final CountDownLatch locked = new CountDownLatch(1); |
1322 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
1323 |
> |
public void realRun() throws InterruptedException { |
1324 |
> |
lock.writeLock().lock(); |
1325 |
> |
assertFalse(lock.hasWaiters(c)); |
1326 |
> |
locked.countDown(); |
1327 |
> |
assertEquals(0, lock.getWaitQueueLength(c)); |
1328 |
> |
c.await(); |
1329 |
> |
lock.writeLock().unlock(); |
1330 |
> |
}}); |
1331 |
|
|
1332 |
< |
try { |
1333 |
< |
t.start(); |
1334 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1335 |
< |
lock.writeLock().lock(); |
1336 |
< |
assertTrue(lock.hasWaiters(c)); |
1337 |
< |
assertEquals(1, lock.getWaitQueueLength(c)); |
1338 |
< |
c.signal(); |
1339 |
< |
lock.writeLock().unlock(); |
1340 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1531 |
< |
lock.writeLock().lock(); |
1532 |
< |
assertFalse(lock.hasWaiters(c)); |
1533 |
< |
assertEquals(0, lock.getWaitQueueLength(c)); |
1534 |
< |
lock.writeLock().unlock(); |
1535 |
< |
t.join(SHORT_DELAY_MS); |
1536 |
< |
assertFalse(t.isAlive()); |
1537 |
< |
} |
1538 |
< |
catch (Exception ex) { |
1539 |
< |
unexpectedException(); |
1540 |
< |
} |
1332 |
> |
locked.await(); |
1333 |
> |
lock.writeLock().lock(); |
1334 |
> |
assertTrue(lock.hasWaiters(c)); |
1335 |
> |
assertEquals(1, lock.getWaitQueueLength(c)); |
1336 |
> |
c.signal(); |
1337 |
> |
assertHasNoWaiters(lock, c); |
1338 |
> |
lock.writeLock().unlock(); |
1339 |
> |
awaitTermination(t); |
1340 |
> |
assertHasNoWaiters(lock, c); |
1341 |
|
} |
1342 |
|
|
1343 |
|
/** |
1344 |
|
* getWaitQueueLength returns number of waiting threads |
1345 |
|
*/ |
1346 |
< |
public void testGetWaitQueueLength() { |
1347 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1348 |
< |
final Condition c = (lock.writeLock().newCondition()); |
1349 |
< |
Thread t = new Thread(new Runnable() { |
1350 |
< |
public void run() { |
1351 |
< |
try { |
1352 |
< |
lock.writeLock().lock(); |
1353 |
< |
threadAssertFalse(lock.hasWaiters(c)); |
1354 |
< |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
1355 |
< |
c.await(); |
1356 |
< |
lock.writeLock().unlock(); |
1357 |
< |
} |
1558 |
< |
catch (InterruptedException e) { |
1559 |
< |
threadUnexpectedException(); |
1560 |
< |
} |
1561 |
< |
} |
1562 |
< |
}); |
1346 |
> |
public void testGetWaitQueueLength() throws InterruptedException { |
1347 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1348 |
> |
final Condition c = lock.writeLock().newCondition(); |
1349 |
> |
final CountDownLatch locked = new CountDownLatch(1); |
1350 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
1351 |
> |
public void realRun() throws InterruptedException { |
1352 |
> |
lock.writeLock().lock(); |
1353 |
> |
assertEquals(0, lock.getWaitQueueLength(c)); |
1354 |
> |
locked.countDown(); |
1355 |
> |
c.await(); |
1356 |
> |
lock.writeLock().unlock(); |
1357 |
> |
}}); |
1358 |
|
|
1359 |
< |
try { |
1360 |
< |
t.start(); |
1361 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1362 |
< |
lock.writeLock().lock(); |
1363 |
< |
assertTrue(lock.hasWaiters(c)); |
1364 |
< |
assertEquals(1, lock.getWaitQueueLength(c)); |
1365 |
< |
c.signal(); |
1366 |
< |
lock.writeLock().unlock(); |
1367 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1573 |
< |
lock.writeLock().lock(); |
1574 |
< |
assertFalse(lock.hasWaiters(c)); |
1575 |
< |
assertEquals(0, lock.getWaitQueueLength(c)); |
1576 |
< |
lock.writeLock().unlock(); |
1577 |
< |
t.join(SHORT_DELAY_MS); |
1578 |
< |
assertFalse(t.isAlive()); |
1579 |
< |
} |
1580 |
< |
catch (Exception ex) { |
1581 |
< |
unexpectedException(); |
1582 |
< |
} |
1359 |
> |
locked.await(); |
1360 |
> |
lock.writeLock().lock(); |
1361 |
> |
assertHasWaiters(lock, c, t); |
1362 |
> |
assertEquals(1, lock.getWaitQueueLength(c)); |
1363 |
> |
c.signal(); |
1364 |
> |
assertHasNoWaiters(lock, c); |
1365 |
> |
assertEquals(0, lock.getWaitQueueLength(c)); |
1366 |
> |
lock.writeLock().unlock(); |
1367 |
> |
awaitTermination(t); |
1368 |
|
} |
1369 |
|
|
1585 |
– |
|
1370 |
|
/** |
1371 |
|
* getWaitingThreads returns only and all waiting threads |
1372 |
|
*/ |
1373 |
< |
public void testGetWaitingThreads() { |
1374 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1373 |
> |
public void testGetWaitingThreads() throws InterruptedException { |
1374 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1375 |
|
final Condition c = lock.writeLock().newCondition(); |
1376 |
< |
Thread t1 = new Thread(new Runnable() { |
1377 |
< |
public void run() { |
1378 |
< |
try { |
1379 |
< |
lock.writeLock().lock(); |
1380 |
< |
threadAssertTrue(lock.getWaitingThreads(c).isEmpty()); |
1381 |
< |
c.await(); |
1382 |
< |
lock.writeLock().unlock(); |
1383 |
< |
} |
1384 |
< |
catch (InterruptedException e) { |
1385 |
< |
threadUnexpectedException(); |
1602 |
< |
} |
1603 |
< |
} |
1604 |
< |
}); |
1605 |
< |
|
1606 |
< |
Thread t2 = new Thread(new Runnable() { |
1607 |
< |
public void run() { |
1608 |
< |
try { |
1609 |
< |
lock.writeLock().lock(); |
1610 |
< |
threadAssertFalse(lock.getWaitingThreads(c).isEmpty()); |
1611 |
< |
c.await(); |
1612 |
< |
lock.writeLock().unlock(); |
1613 |
< |
} |
1614 |
< |
catch (InterruptedException e) { |
1615 |
< |
threadUnexpectedException(); |
1616 |
< |
} |
1617 |
< |
} |
1618 |
< |
}); |
1376 |
> |
final CountDownLatch locked1 = new CountDownLatch(1); |
1377 |
> |
final CountDownLatch locked2 = new CountDownLatch(1); |
1378 |
> |
Thread t1 = new Thread(new CheckedRunnable() { |
1379 |
> |
public void realRun() throws InterruptedException { |
1380 |
> |
lock.writeLock().lock(); |
1381 |
> |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
1382 |
> |
locked1.countDown(); |
1383 |
> |
c.await(); |
1384 |
> |
lock.writeLock().unlock(); |
1385 |
> |
}}); |
1386 |
|
|
1387 |
< |
try { |
1388 |
< |
lock.writeLock().lock(); |
1389 |
< |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
1390 |
< |
lock.writeLock().unlock(); |
1391 |
< |
t1.start(); |
1392 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1393 |
< |
t2.start(); |
1394 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1395 |
< |
lock.writeLock().lock(); |
1396 |
< |
assertTrue(lock.hasWaiters(c)); |
1397 |
< |
assertTrue(lock.getWaitingThreads(c).contains(t1)); |
1398 |
< |
assertTrue(lock.getWaitingThreads(c).contains(t2)); |
1399 |
< |
c.signalAll(); |
1400 |
< |
lock.writeLock().unlock(); |
1401 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1402 |
< |
lock.writeLock().lock(); |
1403 |
< |
assertFalse(lock.hasWaiters(c)); |
1404 |
< |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
1405 |
< |
lock.writeLock().unlock(); |
1406 |
< |
t1.join(SHORT_DELAY_MS); |
1407 |
< |
t2.join(SHORT_DELAY_MS); |
1408 |
< |
assertFalse(t1.isAlive()); |
1409 |
< |
assertFalse(t2.isAlive()); |
1410 |
< |
} |
1411 |
< |
catch (Exception ex) { |
1412 |
< |
unexpectedException(); |
1413 |
< |
} |
1387 |
> |
Thread t2 = new Thread(new CheckedRunnable() { |
1388 |
> |
public void realRun() throws InterruptedException { |
1389 |
> |
lock.writeLock().lock(); |
1390 |
> |
assertFalse(lock.getWaitingThreads(c).isEmpty()); |
1391 |
> |
locked2.countDown(); |
1392 |
> |
c.await(); |
1393 |
> |
lock.writeLock().unlock(); |
1394 |
> |
}}); |
1395 |
> |
|
1396 |
> |
lock.writeLock().lock(); |
1397 |
> |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
1398 |
> |
lock.writeLock().unlock(); |
1399 |
> |
|
1400 |
> |
t1.start(); |
1401 |
> |
locked1.await(); |
1402 |
> |
t2.start(); |
1403 |
> |
locked2.await(); |
1404 |
> |
|
1405 |
> |
lock.writeLock().lock(); |
1406 |
> |
assertTrue(lock.hasWaiters(c)); |
1407 |
> |
assertTrue(lock.getWaitingThreads(c).contains(t1)); |
1408 |
> |
assertTrue(lock.getWaitingThreads(c).contains(t2)); |
1409 |
> |
assertEquals(2, lock.getWaitingThreads(c).size()); |
1410 |
> |
c.signalAll(); |
1411 |
> |
assertHasNoWaiters(lock, c); |
1412 |
> |
lock.writeLock().unlock(); |
1413 |
> |
|
1414 |
> |
awaitTermination(t1); |
1415 |
> |
awaitTermination(t2); |
1416 |
> |
|
1417 |
> |
assertHasNoWaiters(lock, c); |
1418 |
|
} |
1419 |
|
|
1420 |
|
/** |