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jsr166 |
1.1 |
/* |
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* Written by Doug Lea and Martin Buchholz |
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* with assistance from members of JCP JSR-166 Expert Group and |
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* released to the public domain, as explained at |
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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.Condition; |
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import java.util.concurrent.locks.Lock; |
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import java.util.concurrent.locks.ReentrantReadWriteLock; |
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import java.util.concurrent.CountDownLatch; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import java.util.*; |
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public class StampedLockTest 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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} |
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public static Test suite() { |
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return new TestSuite(StampedLockTest.class); |
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} |
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// XXXX Just a skeleton implementation for now. |
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public void testTODO() { fail("StampedLockTest needs help"); } |
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// /** |
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// * A runnable calling lockInterruptibly |
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// */ |
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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 realRun() throws InterruptedException { |
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// lock.writeLock().lockInterruptibly(); |
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// } |
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// } |
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// /** |
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// * A runnable calling lockInterruptibly that expects to be |
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// * interrupted |
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// */ |
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// class InterruptedLockRunnable extends CheckedInterruptedRunnable { |
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// final ReentrantReadWriteLock lock; |
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// InterruptedLockRunnable(ReentrantReadWriteLock l) { lock = l; } |
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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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// * Subclass to expose protected methods |
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// */ |
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// static class PublicReentrantReadWriteLock extends ReentrantReadWriteLock { |
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// PublicReentrantReadWriteLock() { super(); } |
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// PublicReentrantReadWriteLock(boolean fair) { super(fair); } |
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// public Thread getOwner() { |
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// return super.getOwner(); |
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// } |
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// public Collection<Thread> getQueuedThreads() { |
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// return super.getQueuedThreads(); |
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// } |
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// public Collection<Thread> getWaitingThreads(Condition c) { |
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// return super.getWaitingThreads(c); |
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// } |
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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(PublicReentrantReadWriteLock lock) { |
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// ReentrantReadWriteLock.WriteLock writeLock = lock.writeLock(); |
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// assertWriteLockedByMoi(lock); |
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// assertEquals(1, lock.getWriteHoldCount()); |
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// writeLock.unlock(); |
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// assertNotWriteLocked(lock); |
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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(PublicReentrantReadWriteLock 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 AssertionFailedError("timed out"); |
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// Thread.yield(); |
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// } |
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// assertTrue(t.isAlive()); |
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// assertTrue(lock.getOwner() != t); |
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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(PublicReentrantReadWriteLock lock) { |
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// assertFalse(lock.isWriteLocked()); |
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// assertFalse(lock.isWriteLockedByCurrentThread()); |
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// assertFalse(lock.writeLock().isHeldByCurrentThread()); |
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// assertEquals(0, lock.getWriteHoldCount()); |
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// assertEquals(0, lock.writeLock().getHoldCount()); |
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// assertNull(lock.getOwner()); |
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// } |
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// /** |
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// * Checks that lock is write-locked by the given thread. |
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// */ |
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// void assertWriteLockedBy(PublicReentrantReadWriteLock lock, Thread t) { |
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// assertTrue(lock.isWriteLocked()); |
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// assertSame(t, lock.getOwner()); |
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// assertEquals(t == Thread.currentThread(), |
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// lock.isWriteLockedByCurrentThread()); |
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// assertEquals(t == Thread.currentThread(), |
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// lock.writeLock().isHeldByCurrentThread()); |
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// assertEquals(t == Thread.currentThread(), |
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// lock.getWriteHoldCount() > 0); |
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// assertEquals(t == Thread.currentThread(), |
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// lock.writeLock().getHoldCount() > 0); |
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// assertEquals(0, lock.getReadLockCount()); |
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// } |
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// /** |
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// * Checks that lock is write-locked by the current thread. |
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// */ |
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// void assertWriteLockedByMoi(PublicReentrantReadWriteLock lock) { |
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// assertWriteLockedBy(lock, Thread.currentThread()); |
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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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// * 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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// enum AwaitMethod { await, awaitTimed, awaitNanos, awaitUntil }; |
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// /** |
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// * Awaits condition using the specified AwaitMethod. |
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// */ |
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// void await(Condition c, AwaitMethod awaitMethod) |
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// throws InterruptedException { |
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// switch (awaitMethod) { |
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// case await: |
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// c.await(); |
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// break; |
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// case awaitTimed: |
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// assertTrue(c.await(2 * LONG_DELAY_MS, MILLISECONDS)); |
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// break; |
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// case awaitNanos: |
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// long nanosRemaining = c.awaitNanos(MILLISECONDS.toNanos(2 * LONG_DELAY_MS)); |
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// assertTrue(nanosRemaining > 0); |
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// break; |
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// case awaitUntil: |
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// java.util.Date d = new java.util.Date(); |
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// assertTrue(c.awaitUntil(new java.util.Date(d.getTime() + 2 * LONG_DELAY_MS))); |
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// break; |
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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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// PublicReentrantReadWriteLock lock; |
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// lock = new PublicReentrantReadWriteLock(); |
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// assertFalse(lock.isFair()); |
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// assertNotWriteLocked(lock); |
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// assertEquals(0, lock.getReadLockCount()); |
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// lock = new PublicReentrantReadWriteLock(true); |
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// assertTrue(lock.isFair()); |
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// assertNotWriteLocked(lock); |
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// assertEquals(0, lock.getReadLockCount()); |
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// lock = new PublicReentrantReadWriteLock(false); |
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// assertFalse(lock.isFair()); |
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// assertNotWriteLocked(lock); |
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// assertEquals(0, lock.getReadLockCount()); |
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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() { testLock(false); } |
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// public void testLock_fair() { testLock(true); } |
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// public void testLock(boolean fair) { |
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// PublicReentrantReadWriteLock lock = |
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// new PublicReentrantReadWriteLock(fair); |
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// assertNotWriteLocked(lock); |
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// lock.writeLock().lock(); |
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// assertWriteLockedByMoi(lock); |
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// lock.writeLock().unlock(); |
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// assertNotWriteLocked(lock); |
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// assertEquals(0, lock.getReadLockCount()); |
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// lock.readLock().lock(); |
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// assertNotWriteLocked(lock); |
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// assertEquals(1, lock.getReadLockCount()); |
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// lock.readLock().unlock(); |
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// assertNotWriteLocked(lock); |
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// assertEquals(0, lock.getReadLockCount()); |
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// } |
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// /** |
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// * getWriteHoldCount returns number of recursive holds |
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// */ |
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// public void testGetWriteHoldCount() { testGetWriteHoldCount(false); } |
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// public void testGetWriteHoldCount_fair() { testGetWriteHoldCount(true); } |
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// public void testGetWriteHoldCount(boolean fair) { |
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// ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
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// for (int i = 1; i <= SIZE; i++) { |
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// lock.writeLock().lock(); |
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// assertEquals(i,lock.getWriteHoldCount()); |
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// } |
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// for (int i = SIZE; i > 0; i--) { |
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// lock.writeLock().unlock(); |
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// assertEquals(i-1,lock.getWriteHoldCount()); |
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// } |
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// } |
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// /** |
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// * writelock.getHoldCount returns number of recursive holds |
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// */ |
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// public void testGetHoldCount() { testGetHoldCount(false); } |
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// public void testGetHoldCount_fair() { testGetHoldCount(true); } |
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// public void testGetHoldCount(boolean fair) { |
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// ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
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// for (int i = 1; i <= SIZE; i++) { |
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// lock.writeLock().lock(); |
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// assertEquals(i,lock.writeLock().getHoldCount()); |
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// } |
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// for (int i = SIZE; i > 0; i--) { |
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// lock.writeLock().unlock(); |
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// assertEquals(i-1,lock.writeLock().getHoldCount()); |
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// } |
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// } |
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// /** |
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// * getReadHoldCount returns number of recursive holds |
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// */ |
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// public void testGetReadHoldCount() { testGetReadHoldCount(false); } |
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// public void testGetReadHoldCount_fair() { testGetReadHoldCount(true); } |
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// public void testGetReadHoldCount(boolean fair) { |
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// ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
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// for (int i = 1; i <= SIZE; i++) { |
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// lock.readLock().lock(); |
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// assertEquals(i,lock.getReadHoldCount()); |
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// } |
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// for (int i = SIZE; i > 0; i--) { |
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// lock.readLock().unlock(); |
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// assertEquals(i-1,lock.getReadHoldCount()); |
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// } |
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// } |
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// /** |
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// * write-unlocking an unlocked lock throws IllegalMonitorStateException |
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// */ |
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// public void testWriteUnlock_IMSE() { testWriteUnlock_IMSE(false); } |
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// public void testWriteUnlock_IMSE_fair() { testWriteUnlock_IMSE(true); } |
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// public void testWriteUnlock_IMSE(boolean fair) { |
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// ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
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// try { |
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// lock.writeLock().unlock(); |
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// shouldThrow(); |
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// } catch (IllegalMonitorStateException success) {} |
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// } |
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// /** |
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// * read-unlocking an unlocked lock throws IllegalMonitorStateException |
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// */ |
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// public void testReadUnlock_IMSE() { testReadUnlock_IMSE(false); } |
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// public void testReadUnlock_IMSE_fair() { testReadUnlock_IMSE(true); } |
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// public void testReadUnlock_IMSE(boolean fair) { |
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// ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
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// try { |
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// lock.readLock().unlock(); |
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// shouldThrow(); |
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// } catch (IllegalMonitorStateException success) {} |
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// } |
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// /** |
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// * write-lockInterruptibly is interruptible |
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// */ |
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// public void testWriteLockInterruptibly_Interruptible() { testWriteLockInterruptibly_Interruptible(false); } |
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// public void testWriteLockInterruptibly_Interruptible_fair() { testWriteLockInterruptibly_Interruptible(true); } |
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// public void testWriteLockInterruptibly_Interruptible(boolean fair) { |
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// final PublicReentrantReadWriteLock lock = |
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// new PublicReentrantReadWriteLock(fair); |
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// lock.writeLock().lock(); |
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// Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
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// public void realRun() throws InterruptedException { |
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// lock.writeLock().lockInterruptibly(); |
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// }}); |
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// waitForQueuedThread(lock, t); |
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// t.interrupt(); |
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// awaitTermination(t); |
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// releaseWriteLock(lock); |
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// } |
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// /** |
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// * timed write-tryLock is interruptible |
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// */ |
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// public void testWriteTryLock_Interruptible() { testWriteTryLock_Interruptible(false); } |
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// public void testWriteTryLock_Interruptible_fair() { testWriteTryLock_Interruptible(true); } |
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// public void testWriteTryLock_Interruptible(boolean fair) { |
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// final PublicReentrantReadWriteLock lock = |
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// new PublicReentrantReadWriteLock(fair); |
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// lock.writeLock().lock(); |
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// Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
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// public void realRun() throws InterruptedException { |
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// lock.writeLock().tryLock(2 * LONG_DELAY_MS, MILLISECONDS); |
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// }}); |
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// waitForQueuedThread(lock, t); |
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// t.interrupt(); |
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// awaitTermination(t); |
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// releaseWriteLock(lock); |
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// } |
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// /** |
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// * read-lockInterruptibly is interruptible |
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// */ |
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// public void testReadLockInterruptibly_Interruptible() { testReadLockInterruptibly_Interruptible(false); } |
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// public void testReadLockInterruptibly_Interruptible_fair() { testReadLockInterruptibly_Interruptible(true); } |
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// public void testReadLockInterruptibly_Interruptible(boolean fair) { |
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// final PublicReentrantReadWriteLock lock = |
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// new PublicReentrantReadWriteLock(fair); |
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// lock.writeLock().lock(); |
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// Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
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// public void realRun() throws InterruptedException { |
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// lock.readLock().lockInterruptibly(); |
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// }}); |
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// waitForQueuedThread(lock, t); |
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// t.interrupt(); |
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// awaitTermination(t); |
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// releaseWriteLock(lock); |
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// } |
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// /** |
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// * timed read-tryLock is interruptible |
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// */ |
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// public void testReadTryLock_Interruptible() { testReadTryLock_Interruptible(false); } |
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// public void testReadTryLock_Interruptible_fair() { testReadTryLock_Interruptible(true); } |
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// public void testReadTryLock_Interruptible(boolean fair) { |
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// final PublicReentrantReadWriteLock lock = |
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// new PublicReentrantReadWriteLock(fair); |
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// lock.writeLock().lock(); |
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|
|
// Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
369 |
|
|
// public void realRun() throws InterruptedException { |
370 |
|
|
// lock.readLock().tryLock(2 * LONG_DELAY_MS, MILLISECONDS); |
371 |
|
|
// }}); |
372 |
|
|
|
373 |
|
|
// waitForQueuedThread(lock, t); |
374 |
|
|
// t.interrupt(); |
375 |
|
|
// awaitTermination(t); |
376 |
|
|
// releaseWriteLock(lock); |
377 |
|
|
// } |
378 |
|
|
|
379 |
|
|
// /** |
380 |
|
|
// * write-tryLock on an unlocked lock succeeds |
381 |
|
|
// */ |
382 |
|
|
// public void testWriteTryLock() { testWriteTryLock(false); } |
383 |
|
|
// public void testWriteTryLock_fair() { testWriteTryLock(true); } |
384 |
|
|
// public void testWriteTryLock(boolean fair) { |
385 |
|
|
// final PublicReentrantReadWriteLock lock = |
386 |
|
|
// new PublicReentrantReadWriteLock(fair); |
387 |
|
|
// assertTrue(lock.writeLock().tryLock()); |
388 |
|
|
// assertWriteLockedByMoi(lock); |
389 |
|
|
// assertTrue(lock.writeLock().tryLock()); |
390 |
|
|
// assertWriteLockedByMoi(lock); |
391 |
|
|
// lock.writeLock().unlock(); |
392 |
|
|
// releaseWriteLock(lock); |
393 |
|
|
// } |
394 |
|
|
|
395 |
|
|
// /** |
396 |
|
|
// * write-tryLock fails if locked |
397 |
|
|
// */ |
398 |
|
|
// public void testWriteTryLockWhenLocked() { testWriteTryLockWhenLocked(false); } |
399 |
|
|
// public void testWriteTryLockWhenLocked_fair() { testWriteTryLockWhenLocked(true); } |
400 |
|
|
// public void testWriteTryLockWhenLocked(boolean fair) { |
401 |
|
|
// final PublicReentrantReadWriteLock lock = |
402 |
|
|
// new PublicReentrantReadWriteLock(fair); |
403 |
|
|
// lock.writeLock().lock(); |
404 |
|
|
// Thread t = newStartedThread(new CheckedRunnable() { |
405 |
|
|
// public void realRun() { |
406 |
|
|
// assertFalse(lock.writeLock().tryLock()); |
407 |
|
|
// }}); |
408 |
|
|
|
409 |
|
|
// awaitTermination(t); |
410 |
|
|
// releaseWriteLock(lock); |
411 |
|
|
// } |
412 |
|
|
|
413 |
|
|
// /** |
414 |
|
|
// * read-tryLock fails if locked |
415 |
|
|
// */ |
416 |
|
|
// public void testReadTryLockWhenLocked() { testReadTryLockWhenLocked(false); } |
417 |
|
|
// public void testReadTryLockWhenLocked_fair() { testReadTryLockWhenLocked(true); } |
418 |
|
|
// public void testReadTryLockWhenLocked(boolean fair) { |
419 |
|
|
// final PublicReentrantReadWriteLock lock = |
420 |
|
|
// new PublicReentrantReadWriteLock(fair); |
421 |
|
|
// lock.writeLock().lock(); |
422 |
|
|
// Thread t = newStartedThread(new CheckedRunnable() { |
423 |
|
|
// public void realRun() { |
424 |
|
|
// assertFalse(lock.readLock().tryLock()); |
425 |
|
|
// }}); |
426 |
|
|
|
427 |
|
|
// awaitTermination(t); |
428 |
|
|
// releaseWriteLock(lock); |
429 |
|
|
// } |
430 |
|
|
|
431 |
|
|
// /** |
432 |
|
|
// * Multiple threads can hold a read lock when not write-locked |
433 |
|
|
// */ |
434 |
|
|
// public void testMultipleReadLocks() { testMultipleReadLocks(false); } |
435 |
|
|
// public void testMultipleReadLocks_fair() { testMultipleReadLocks(true); } |
436 |
|
|
// public void testMultipleReadLocks(boolean fair) { |
437 |
|
|
// final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
438 |
|
|
// lock.readLock().lock(); |
439 |
|
|
// Thread t = newStartedThread(new CheckedRunnable() { |
440 |
|
|
// public void realRun() throws InterruptedException { |
441 |
|
|
// assertTrue(lock.readLock().tryLock()); |
442 |
|
|
// lock.readLock().unlock(); |
443 |
|
|
// assertTrue(lock.readLock().tryLock(LONG_DELAY_MS, MILLISECONDS)); |
444 |
|
|
// lock.readLock().unlock(); |
445 |
|
|
// lock.readLock().lock(); |
446 |
|
|
// lock.readLock().unlock(); |
447 |
|
|
// }}); |
448 |
|
|
|
449 |
|
|
// awaitTermination(t); |
450 |
|
|
// lock.readLock().unlock(); |
451 |
|
|
// } |
452 |
|
|
|
453 |
|
|
// /** |
454 |
|
|
// * A writelock succeeds only after a reading thread unlocks |
455 |
|
|
// */ |
456 |
|
|
// public void testWriteAfterReadLock() { testWriteAfterReadLock(false); } |
457 |
|
|
// public void testWriteAfterReadLock_fair() { testWriteAfterReadLock(true); } |
458 |
|
|
// public void testWriteAfterReadLock(boolean fair) { |
459 |
|
|
// final PublicReentrantReadWriteLock lock = |
460 |
|
|
// new PublicReentrantReadWriteLock(fair); |
461 |
|
|
// lock.readLock().lock(); |
462 |
|
|
// Thread t = newStartedThread(new CheckedRunnable() { |
463 |
|
|
// public void realRun() { |
464 |
|
|
// assertEquals(1, lock.getReadLockCount()); |
465 |
|
|
// lock.writeLock().lock(); |
466 |
|
|
// assertEquals(0, lock.getReadLockCount()); |
467 |
|
|
// lock.writeLock().unlock(); |
468 |
|
|
// }}); |
469 |
|
|
// waitForQueuedThread(lock, t); |
470 |
|
|
// assertNotWriteLocked(lock); |
471 |
|
|
// assertEquals(1, lock.getReadLockCount()); |
472 |
|
|
// lock.readLock().unlock(); |
473 |
|
|
// assertEquals(0, lock.getReadLockCount()); |
474 |
|
|
// awaitTermination(t); |
475 |
|
|
// assertNotWriteLocked(lock); |
476 |
|
|
// } |
477 |
|
|
|
478 |
|
|
// /** |
479 |
|
|
// * A writelock succeeds only after reading threads unlock |
480 |
|
|
// */ |
481 |
|
|
// public void testWriteAfterMultipleReadLocks() { testWriteAfterMultipleReadLocks(false); } |
482 |
|
|
// public void testWriteAfterMultipleReadLocks_fair() { testWriteAfterMultipleReadLocks(true); } |
483 |
|
|
// public void testWriteAfterMultipleReadLocks(boolean fair) { |
484 |
|
|
// final PublicReentrantReadWriteLock lock = |
485 |
|
|
// new PublicReentrantReadWriteLock(fair); |
486 |
|
|
// lock.readLock().lock(); |
487 |
|
|
// lock.readLock().lock(); |
488 |
|
|
// Thread t1 = newStartedThread(new CheckedRunnable() { |
489 |
|
|
// public void realRun() { |
490 |
|
|
// lock.readLock().lock(); |
491 |
|
|
// assertEquals(3, lock.getReadLockCount()); |
492 |
|
|
// lock.readLock().unlock(); |
493 |
|
|
// }}); |
494 |
|
|
// awaitTermination(t1); |
495 |
|
|
|
496 |
|
|
// Thread t2 = newStartedThread(new CheckedRunnable() { |
497 |
|
|
// public void realRun() { |
498 |
|
|
// assertEquals(2, lock.getReadLockCount()); |
499 |
|
|
// lock.writeLock().lock(); |
500 |
|
|
// assertEquals(0, lock.getReadLockCount()); |
501 |
|
|
// lock.writeLock().unlock(); |
502 |
|
|
// }}); |
503 |
|
|
// waitForQueuedThread(lock, t2); |
504 |
|
|
// assertNotWriteLocked(lock); |
505 |
|
|
// assertEquals(2, lock.getReadLockCount()); |
506 |
|
|
// lock.readLock().unlock(); |
507 |
|
|
// lock.readLock().unlock(); |
508 |
|
|
// assertEquals(0, lock.getReadLockCount()); |
509 |
|
|
// awaitTermination(t2); |
510 |
|
|
// assertNotWriteLocked(lock); |
511 |
|
|
// } |
512 |
|
|
|
513 |
|
|
// /** |
514 |
|
|
// * A thread that tries to acquire a fair read lock (non-reentrantly) |
515 |
|
|
// * will block if there is a waiting writer thread |
516 |
|
|
// */ |
517 |
|
|
// public void testReaderWriterReaderFairFifo() { |
518 |
|
|
// final PublicReentrantReadWriteLock lock = |
519 |
|
|
// new PublicReentrantReadWriteLock(true); |
520 |
|
|
// final AtomicBoolean t1GotLock = new AtomicBoolean(false); |
521 |
|
|
|
522 |
|
|
// lock.readLock().lock(); |
523 |
|
|
// Thread t1 = newStartedThread(new CheckedRunnable() { |
524 |
|
|
// public void realRun() { |
525 |
|
|
// assertEquals(1, lock.getReadLockCount()); |
526 |
|
|
// lock.writeLock().lock(); |
527 |
|
|
// assertEquals(0, lock.getReadLockCount()); |
528 |
|
|
// t1GotLock.set(true); |
529 |
|
|
// lock.writeLock().unlock(); |
530 |
|
|
// }}); |
531 |
|
|
// waitForQueuedThread(lock, t1); |
532 |
|
|
|
533 |
|
|
// Thread t2 = newStartedThread(new CheckedRunnable() { |
534 |
|
|
// public void realRun() { |
535 |
|
|
// assertEquals(1, lock.getReadLockCount()); |
536 |
|
|
// lock.readLock().lock(); |
537 |
|
|
// assertEquals(1, lock.getReadLockCount()); |
538 |
|
|
// assertTrue(t1GotLock.get()); |
539 |
|
|
// lock.readLock().unlock(); |
540 |
|
|
// }}); |
541 |
|
|
// waitForQueuedThread(lock, t2); |
542 |
|
|
// assertTrue(t1.isAlive()); |
543 |
|
|
// assertNotWriteLocked(lock); |
544 |
|
|
// assertEquals(1, lock.getReadLockCount()); |
545 |
|
|
// lock.readLock().unlock(); |
546 |
|
|
// awaitTermination(t1); |
547 |
|
|
// awaitTermination(t2); |
548 |
|
|
// assertNotWriteLocked(lock); |
549 |
|
|
// } |
550 |
|
|
|
551 |
|
|
// /** |
552 |
|
|
// * Readlocks succeed only after a writing thread unlocks |
553 |
|
|
// */ |
554 |
|
|
// public void testReadAfterWriteLock() { testReadAfterWriteLock(false); } |
555 |
|
|
// public void testReadAfterWriteLock_fair() { testReadAfterWriteLock(true); } |
556 |
|
|
// public void testReadAfterWriteLock(boolean fair) { |
557 |
|
|
// final PublicReentrantReadWriteLock lock = |
558 |
|
|
// new PublicReentrantReadWriteLock(fair); |
559 |
|
|
// lock.writeLock().lock(); |
560 |
|
|
// Thread t1 = newStartedThread(new CheckedRunnable() { |
561 |
|
|
// public void realRun() { |
562 |
|
|
// lock.readLock().lock(); |
563 |
|
|
// lock.readLock().unlock(); |
564 |
|
|
// }}); |
565 |
|
|
// Thread t2 = newStartedThread(new CheckedRunnable() { |
566 |
|
|
// public void realRun() { |
567 |
|
|
// lock.readLock().lock(); |
568 |
|
|
// lock.readLock().unlock(); |
569 |
|
|
// }}); |
570 |
|
|
|
571 |
|
|
// waitForQueuedThread(lock, t1); |
572 |
|
|
// waitForQueuedThread(lock, t2); |
573 |
|
|
// releaseWriteLock(lock); |
574 |
|
|
// awaitTermination(t1); |
575 |
|
|
// awaitTermination(t2); |
576 |
|
|
// } |
577 |
|
|
|
578 |
|
|
// /** |
579 |
|
|
// * Read trylock succeeds if write locked by current thread |
580 |
|
|
// */ |
581 |
|
|
// public void testReadHoldingWriteLock() { testReadHoldingWriteLock(false); } |
582 |
|
|
// public void testReadHoldingWriteLock_fair() { testReadHoldingWriteLock(true); } |
583 |
|
|
// public void testReadHoldingWriteLock(boolean fair) { |
584 |
|
|
// final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
585 |
|
|
// lock.writeLock().lock(); |
586 |
|
|
// assertTrue(lock.readLock().tryLock()); |
587 |
|
|
// lock.readLock().unlock(); |
588 |
|
|
// lock.writeLock().unlock(); |
589 |
|
|
// } |
590 |
|
|
|
591 |
|
|
// /** |
592 |
|
|
// * Read trylock succeeds (barging) even in the presence of waiting |
593 |
|
|
// * readers and/or writers |
594 |
|
|
// */ |
595 |
|
|
// public void testReadTryLockBarging() { testReadTryLockBarging(false); } |
596 |
|
|
// public void testReadTryLockBarging_fair() { testReadTryLockBarging(true); } |
597 |
|
|
// public void testReadTryLockBarging(boolean fair) { |
598 |
|
|
// final PublicReentrantReadWriteLock lock = |
599 |
|
|
// new PublicReentrantReadWriteLock(fair); |
600 |
|
|
// lock.readLock().lock(); |
601 |
|
|
|
602 |
|
|
// Thread t1 = newStartedThread(new CheckedRunnable() { |
603 |
|
|
// public void realRun() { |
604 |
|
|
// lock.writeLock().lock(); |
605 |
|
|
// lock.writeLock().unlock(); |
606 |
|
|
// }}); |
607 |
|
|
|
608 |
|
|
// waitForQueuedThread(lock, t1); |
609 |
|
|
|
610 |
|
|
// Thread t2 = newStartedThread(new CheckedRunnable() { |
611 |
|
|
// public void realRun() { |
612 |
|
|
// lock.readLock().lock(); |
613 |
|
|
// lock.readLock().unlock(); |
614 |
|
|
// }}); |
615 |
|
|
|
616 |
|
|
// if (fair) |
617 |
|
|
// waitForQueuedThread(lock, t2); |
618 |
|
|
|
619 |
|
|
// Thread t3 = newStartedThread(new CheckedRunnable() { |
620 |
|
|
// public void realRun() { |
621 |
|
|
// lock.readLock().tryLock(); |
622 |
|
|
// lock.readLock().unlock(); |
623 |
|
|
// }}); |
624 |
|
|
|
625 |
|
|
// assertTrue(lock.getReadLockCount() > 0); |
626 |
|
|
// awaitTermination(t3); |
627 |
|
|
// assertTrue(t1.isAlive()); |
628 |
|
|
// if (fair) assertTrue(t2.isAlive()); |
629 |
|
|
// lock.readLock().unlock(); |
630 |
|
|
// awaitTermination(t1); |
631 |
|
|
// awaitTermination(t2); |
632 |
|
|
// } |
633 |
|
|
|
634 |
|
|
// /** |
635 |
|
|
// * Read lock succeeds if write locked by current thread even if |
636 |
|
|
// * other threads are waiting for readlock |
637 |
|
|
// */ |
638 |
|
|
// public void testReadHoldingWriteLock2() { testReadHoldingWriteLock2(false); } |
639 |
|
|
// public void testReadHoldingWriteLock2_fair() { testReadHoldingWriteLock2(true); } |
640 |
|
|
// public void testReadHoldingWriteLock2(boolean fair) { |
641 |
|
|
// final PublicReentrantReadWriteLock lock = |
642 |
|
|
// new PublicReentrantReadWriteLock(fair); |
643 |
|
|
// lock.writeLock().lock(); |
644 |
|
|
// lock.readLock().lock(); |
645 |
|
|
// lock.readLock().unlock(); |
646 |
|
|
|
647 |
|
|
// Thread t1 = newStartedThread(new CheckedRunnable() { |
648 |
|
|
// public void realRun() { |
649 |
|
|
// lock.readLock().lock(); |
650 |
|
|
// lock.readLock().unlock(); |
651 |
|
|
// }}); |
652 |
|
|
// Thread t2 = newStartedThread(new CheckedRunnable() { |
653 |
|
|
// public void realRun() { |
654 |
|
|
// lock.readLock().lock(); |
655 |
|
|
// lock.readLock().unlock(); |
656 |
|
|
// }}); |
657 |
|
|
|
658 |
|
|
// waitForQueuedThread(lock, t1); |
659 |
|
|
// waitForQueuedThread(lock, t2); |
660 |
|
|
// assertWriteLockedByMoi(lock); |
661 |
|
|
// lock.readLock().lock(); |
662 |
|
|
// lock.readLock().unlock(); |
663 |
|
|
// releaseWriteLock(lock); |
664 |
|
|
// awaitTermination(t1); |
665 |
|
|
// awaitTermination(t2); |
666 |
|
|
// } |
667 |
|
|
|
668 |
|
|
// /** |
669 |
|
|
// * Read lock succeeds if write locked by current thread even if |
670 |
|
|
// * other threads are waiting for writelock |
671 |
|
|
// */ |
672 |
|
|
// public void testReadHoldingWriteLock3() { testReadHoldingWriteLock3(false); } |
673 |
|
|
// public void testReadHoldingWriteLock3_fair() { testReadHoldingWriteLock3(true); } |
674 |
|
|
// public void testReadHoldingWriteLock3(boolean fair) { |
675 |
|
|
// final PublicReentrantReadWriteLock lock = |
676 |
|
|
// new PublicReentrantReadWriteLock(fair); |
677 |
|
|
// lock.writeLock().lock(); |
678 |
|
|
// lock.readLock().lock(); |
679 |
|
|
// lock.readLock().unlock(); |
680 |
|
|
|
681 |
|
|
// Thread t1 = newStartedThread(new CheckedRunnable() { |
682 |
|
|
// public void realRun() { |
683 |
|
|
// lock.writeLock().lock(); |
684 |
|
|
// lock.writeLock().unlock(); |
685 |
|
|
// }}); |
686 |
|
|
// Thread t2 = newStartedThread(new CheckedRunnable() { |
687 |
|
|
// public void realRun() { |
688 |
|
|
// lock.writeLock().lock(); |
689 |
|
|
// lock.writeLock().unlock(); |
690 |
|
|
// }}); |
691 |
|
|
|
692 |
|
|
// waitForQueuedThread(lock, t1); |
693 |
|
|
// waitForQueuedThread(lock, t2); |
694 |
|
|
// assertWriteLockedByMoi(lock); |
695 |
|
|
// lock.readLock().lock(); |
696 |
|
|
// lock.readLock().unlock(); |
697 |
|
|
// assertWriteLockedByMoi(lock); |
698 |
|
|
// lock.writeLock().unlock(); |
699 |
|
|
// awaitTermination(t1); |
700 |
|
|
// awaitTermination(t2); |
701 |
|
|
// } |
702 |
|
|
|
703 |
|
|
// /** |
704 |
|
|
// * Write lock succeeds if write locked by current thread even if |
705 |
|
|
// * other threads are waiting for writelock |
706 |
|
|
// */ |
707 |
|
|
// public void testWriteHoldingWriteLock4() { testWriteHoldingWriteLock4(false); } |
708 |
|
|
// public void testWriteHoldingWriteLock4_fair() { testWriteHoldingWriteLock4(true); } |
709 |
|
|
// public void testWriteHoldingWriteLock4(boolean fair) { |
710 |
|
|
// final PublicReentrantReadWriteLock lock = |
711 |
|
|
// new PublicReentrantReadWriteLock(fair); |
712 |
|
|
// lock.writeLock().lock(); |
713 |
|
|
// lock.writeLock().lock(); |
714 |
|
|
// lock.writeLock().unlock(); |
715 |
|
|
|
716 |
|
|
// Thread t1 = newStartedThread(new CheckedRunnable() { |
717 |
|
|
// public void realRun() { |
718 |
|
|
// lock.writeLock().lock(); |
719 |
|
|
// lock.writeLock().unlock(); |
720 |
|
|
// }}); |
721 |
|
|
// Thread t2 = newStartedThread(new CheckedRunnable() { |
722 |
|
|
// public void realRun() { |
723 |
|
|
// lock.writeLock().lock(); |
724 |
|
|
// lock.writeLock().unlock(); |
725 |
|
|
// }}); |
726 |
|
|
|
727 |
|
|
// waitForQueuedThread(lock, t1); |
728 |
|
|
// waitForQueuedThread(lock, t2); |
729 |
|
|
// assertWriteLockedByMoi(lock); |
730 |
|
|
// assertEquals(1, lock.getWriteHoldCount()); |
731 |
|
|
// lock.writeLock().lock(); |
732 |
|
|
// assertWriteLockedByMoi(lock); |
733 |
|
|
// assertEquals(2, lock.getWriteHoldCount()); |
734 |
|
|
// lock.writeLock().unlock(); |
735 |
|
|
// assertWriteLockedByMoi(lock); |
736 |
|
|
// assertEquals(1, lock.getWriteHoldCount()); |
737 |
|
|
// lock.writeLock().unlock(); |
738 |
|
|
// awaitTermination(t1); |
739 |
|
|
// awaitTermination(t2); |
740 |
|
|
// } |
741 |
|
|
|
742 |
|
|
// /** |
743 |
|
|
// * Read tryLock succeeds if readlocked but not writelocked |
744 |
|
|
// */ |
745 |
|
|
// public void testTryLockWhenReadLocked() { testTryLockWhenReadLocked(false); } |
746 |
|
|
// public void testTryLockWhenReadLocked_fair() { testTryLockWhenReadLocked(true); } |
747 |
|
|
// public void testTryLockWhenReadLocked(boolean fair) { |
748 |
|
|
// final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
749 |
|
|
// lock.readLock().lock(); |
750 |
|
|
// Thread t = newStartedThread(new CheckedRunnable() { |
751 |
|
|
// public void realRun() { |
752 |
|
|
// assertTrue(lock.readLock().tryLock()); |
753 |
|
|
// lock.readLock().unlock(); |
754 |
|
|
// }}); |
755 |
|
|
|
756 |
|
|
// awaitTermination(t); |
757 |
|
|
// lock.readLock().unlock(); |
758 |
|
|
// } |
759 |
|
|
|
760 |
|
|
// /** |
761 |
|
|
// * write tryLock fails when readlocked |
762 |
|
|
// */ |
763 |
|
|
// public void testWriteTryLockWhenReadLocked() { testWriteTryLockWhenReadLocked(false); } |
764 |
|
|
// public void testWriteTryLockWhenReadLocked_fair() { testWriteTryLockWhenReadLocked(true); } |
765 |
|
|
// public void testWriteTryLockWhenReadLocked(boolean fair) { |
766 |
|
|
// final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
767 |
|
|
// lock.readLock().lock(); |
768 |
|
|
// Thread t = newStartedThread(new CheckedRunnable() { |
769 |
|
|
// public void realRun() { |
770 |
|
|
// assertFalse(lock.writeLock().tryLock()); |
771 |
|
|
// }}); |
772 |
|
|
|
773 |
|
|
// awaitTermination(t); |
774 |
|
|
// lock.readLock().unlock(); |
775 |
|
|
// } |
776 |
|
|
|
777 |
|
|
// /** |
778 |
|
|
// * write timed tryLock times out if locked |
779 |
|
|
// */ |
780 |
|
|
// public void testWriteTryLock_Timeout() { testWriteTryLock_Timeout(false); } |
781 |
|
|
// public void testWriteTryLock_Timeout_fair() { testWriteTryLock_Timeout(true); } |
782 |
|
|
// public void testWriteTryLock_Timeout(boolean fair) { |
783 |
|
|
// final PublicReentrantReadWriteLock lock = |
784 |
|
|
// new PublicReentrantReadWriteLock(fair); |
785 |
|
|
// lock.writeLock().lock(); |
786 |
|
|
// Thread t = newStartedThread(new CheckedRunnable() { |
787 |
|
|
// public void realRun() throws InterruptedException { |
788 |
|
|
// long startTime = System.nanoTime(); |
789 |
|
|
// long timeoutMillis = 10; |
790 |
|
|
// assertFalse(lock.writeLock().tryLock(timeoutMillis, MILLISECONDS)); |
791 |
|
|
// assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
792 |
|
|
// }}); |
793 |
|
|
|
794 |
|
|
// awaitTermination(t); |
795 |
|
|
// releaseWriteLock(lock); |
796 |
|
|
// } |
797 |
|
|
|
798 |
|
|
// /** |
799 |
|
|
// * read timed tryLock times out if write-locked |
800 |
|
|
// */ |
801 |
|
|
// public void testReadTryLock_Timeout() { testReadTryLock_Timeout(false); } |
802 |
|
|
// public void testReadTryLock_Timeout_fair() { testReadTryLock_Timeout(true); } |
803 |
|
|
// public void testReadTryLock_Timeout(boolean fair) { |
804 |
|
|
// final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
805 |
|
|
// lock.writeLock().lock(); |
806 |
|
|
// Thread t = newStartedThread(new CheckedRunnable() { |
807 |
|
|
// public void realRun() throws InterruptedException { |
808 |
|
|
// long startTime = System.nanoTime(); |
809 |
|
|
// long timeoutMillis = 10; |
810 |
|
|
// assertFalse(lock.readLock().tryLock(timeoutMillis, MILLISECONDS)); |
811 |
|
|
// assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
812 |
|
|
// }}); |
813 |
|
|
|
814 |
|
|
// awaitTermination(t); |
815 |
|
|
// assertTrue(lock.writeLock().isHeldByCurrentThread()); |
816 |
|
|
// lock.writeLock().unlock(); |
817 |
|
|
// } |
818 |
|
|
|
819 |
|
|
// /** |
820 |
|
|
// * write lockInterruptibly succeeds if unlocked, else is interruptible |
821 |
|
|
// */ |
822 |
|
|
// public void testWriteLockInterruptibly() { testWriteLockInterruptibly(false); } |
823 |
|
|
// public void testWriteLockInterruptibly_fair() { testWriteLockInterruptibly(true); } |
824 |
|
|
// public void testWriteLockInterruptibly(boolean fair) { |
825 |
|
|
// final PublicReentrantReadWriteLock lock = |
826 |
|
|
// new PublicReentrantReadWriteLock(fair); |
827 |
|
|
// try { |
828 |
|
|
// lock.writeLock().lockInterruptibly(); |
829 |
|
|
// } catch (InterruptedException ie) { |
830 |
|
|
// threadUnexpectedException(ie); |
831 |
|
|
// } |
832 |
|
|
// Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
833 |
|
|
// public void realRun() throws InterruptedException { |
834 |
|
|
// lock.writeLock().lockInterruptibly(); |
835 |
|
|
// }}); |
836 |
|
|
|
837 |
|
|
// waitForQueuedThread(lock, t); |
838 |
|
|
// t.interrupt(); |
839 |
|
|
// assertTrue(lock.writeLock().isHeldByCurrentThread()); |
840 |
|
|
// awaitTermination(t); |
841 |
|
|
// releaseWriteLock(lock); |
842 |
|
|
// } |
843 |
|
|
|
844 |
|
|
// /** |
845 |
|
|
// * read lockInterruptibly succeeds if lock free else is interruptible |
846 |
|
|
// */ |
847 |
|
|
// public void testReadLockInterruptibly() { testReadLockInterruptibly(false); } |
848 |
|
|
// public void testReadLockInterruptibly_fair() { testReadLockInterruptibly(true); } |
849 |
|
|
// public void testReadLockInterruptibly(boolean fair) { |
850 |
|
|
// final PublicReentrantReadWriteLock lock = |
851 |
|
|
// new PublicReentrantReadWriteLock(fair); |
852 |
|
|
// try { |
853 |
|
|
// lock.readLock().lockInterruptibly(); |
854 |
|
|
// lock.readLock().unlock(); |
855 |
|
|
// lock.writeLock().lockInterruptibly(); |
856 |
|
|
// } catch (InterruptedException ie) { |
857 |
|
|
// threadUnexpectedException(ie); |
858 |
|
|
// } |
859 |
|
|
// Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
860 |
|
|
// public void realRun() throws InterruptedException { |
861 |
|
|
// lock.readLock().lockInterruptibly(); |
862 |
|
|
// }}); |
863 |
|
|
|
864 |
|
|
// waitForQueuedThread(lock, t); |
865 |
|
|
// t.interrupt(); |
866 |
|
|
// awaitTermination(t); |
867 |
|
|
// releaseWriteLock(lock); |
868 |
|
|
// } |
869 |
|
|
|
870 |
|
|
// /** |
871 |
|
|
// * Calling await without holding lock throws IllegalMonitorStateException |
872 |
|
|
// */ |
873 |
|
|
// public void testAwait_IMSE() { testAwait_IMSE(false); } |
874 |
|
|
// public void testAwait_IMSE_fair() { testAwait_IMSE(true); } |
875 |
|
|
// public void testAwait_IMSE(boolean fair) { |
876 |
|
|
// final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
877 |
|
|
// final Condition c = lock.writeLock().newCondition(); |
878 |
|
|
// for (AwaitMethod awaitMethod : AwaitMethod.values()) { |
879 |
|
|
// long startTime = System.nanoTime(); |
880 |
|
|
// try { |
881 |
|
|
// await(c, awaitMethod); |
882 |
|
|
// shouldThrow(); |
883 |
|
|
// } catch (IllegalMonitorStateException success) { |
884 |
|
|
// } catch (InterruptedException e) { threadUnexpectedException(e); } |
885 |
|
|
// assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
886 |
|
|
// } |
887 |
|
|
// } |
888 |
|
|
|
889 |
|
|
// /** |
890 |
|
|
// * Calling signal without holding lock throws IllegalMonitorStateException |
891 |
|
|
// */ |
892 |
|
|
// public void testSignal_IMSE() { testSignal_IMSE(false); } |
893 |
|
|
// public void testSignal_IMSE_fair() { testSignal_IMSE(true); } |
894 |
|
|
// public void testSignal_IMSE(boolean fair) { |
895 |
|
|
// final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
896 |
|
|
// final Condition c = lock.writeLock().newCondition(); |
897 |
|
|
// try { |
898 |
|
|
// c.signal(); |
899 |
|
|
// shouldThrow(); |
900 |
|
|
// } catch (IllegalMonitorStateException success) {} |
901 |
|
|
// } |
902 |
|
|
|
903 |
|
|
// /** |
904 |
|
|
// * Calling signalAll without holding lock throws IllegalMonitorStateException |
905 |
|
|
// */ |
906 |
|
|
// public void testSignalAll_IMSE() { testSignalAll_IMSE(false); } |
907 |
|
|
// public void testSignalAll_IMSE_fair() { testSignalAll_IMSE(true); } |
908 |
|
|
// public void testSignalAll_IMSE(boolean fair) { |
909 |
|
|
// final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
910 |
|
|
// final Condition c = lock.writeLock().newCondition(); |
911 |
|
|
// try { |
912 |
|
|
// c.signalAll(); |
913 |
|
|
// shouldThrow(); |
914 |
|
|
// } catch (IllegalMonitorStateException success) {} |
915 |
|
|
// } |
916 |
|
|
|
917 |
|
|
// /** |
918 |
|
|
// * awaitNanos without a signal times out |
919 |
|
|
// */ |
920 |
|
|
// public void testAwaitNanos_Timeout() { testAwaitNanos_Timeout(false); } |
921 |
|
|
// public void testAwaitNanos_Timeout_fair() { testAwaitNanos_Timeout(true); } |
922 |
|
|
// public void testAwaitNanos_Timeout(boolean fair) { |
923 |
|
|
// try { |
924 |
|
|
// final ReentrantReadWriteLock lock = |
925 |
|
|
// new ReentrantReadWriteLock(fair); |
926 |
|
|
// final Condition c = lock.writeLock().newCondition(); |
927 |
|
|
// lock.writeLock().lock(); |
928 |
|
|
// long startTime = System.nanoTime(); |
929 |
|
|
// long timeoutMillis = 10; |
930 |
|
|
// long timeoutNanos = MILLISECONDS.toNanos(timeoutMillis); |
931 |
|
|
// long nanosRemaining = c.awaitNanos(timeoutNanos); |
932 |
|
|
// assertTrue(nanosRemaining <= 0); |
933 |
|
|
// assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
934 |
|
|
// lock.writeLock().unlock(); |
935 |
|
|
// } catch (InterruptedException e) { |
936 |
|
|
// threadUnexpectedException(e); |
937 |
|
|
// } |
938 |
|
|
// } |
939 |
|
|
|
940 |
|
|
// /** |
941 |
|
|
// * timed await without a signal times out |
942 |
|
|
// */ |
943 |
|
|
// public void testAwait_Timeout() { testAwait_Timeout(false); } |
944 |
|
|
// public void testAwait_Timeout_fair() { testAwait_Timeout(true); } |
945 |
|
|
// public void testAwait_Timeout(boolean fair) { |
946 |
|
|
// try { |
947 |
|
|
// final ReentrantReadWriteLock lock = |
948 |
|
|
// new ReentrantReadWriteLock(fair); |
949 |
|
|
// final Condition c = lock.writeLock().newCondition(); |
950 |
|
|
// lock.writeLock().lock(); |
951 |
|
|
// long startTime = System.nanoTime(); |
952 |
|
|
// long timeoutMillis = 10; |
953 |
|
|
// assertFalse(c.await(timeoutMillis, MILLISECONDS)); |
954 |
|
|
// assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
955 |
|
|
// lock.writeLock().unlock(); |
956 |
|
|
// } catch (InterruptedException e) { |
957 |
|
|
// threadUnexpectedException(e); |
958 |
|
|
// } |
959 |
|
|
// } |
960 |
|
|
|
961 |
|
|
// /** |
962 |
|
|
// * awaitUntil without a signal times out |
963 |
|
|
// */ |
964 |
|
|
// public void testAwaitUntil_Timeout() { testAwaitUntil_Timeout(false); } |
965 |
|
|
// public void testAwaitUntil_Timeout_fair() { testAwaitUntil_Timeout(true); } |
966 |
|
|
// public void testAwaitUntil_Timeout(boolean fair) { |
967 |
|
|
// try { |
968 |
|
|
// final ReentrantReadWriteLock lock = |
969 |
|
|
// new ReentrantReadWriteLock(fair); |
970 |
|
|
// final Condition c = lock.writeLock().newCondition(); |
971 |
|
|
// lock.writeLock().lock(); |
972 |
|
|
// long startTime = System.nanoTime(); |
973 |
|
|
// long timeoutMillis = 10; |
974 |
|
|
// java.util.Date d = new java.util.Date(); |
975 |
|
|
// assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + timeoutMillis))); |
976 |
|
|
// assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
977 |
|
|
// lock.writeLock().unlock(); |
978 |
|
|
// } catch (InterruptedException e) { |
979 |
|
|
// threadUnexpectedException(e); |
980 |
|
|
// } |
981 |
|
|
// } |
982 |
|
|
|
983 |
|
|
// /** |
984 |
|
|
// * await returns when signalled |
985 |
|
|
// */ |
986 |
|
|
// public void testAwait() { testAwait(false); } |
987 |
|
|
// public void testAwait_fair() { testAwait(true); } |
988 |
|
|
// public void testAwait(boolean fair) { |
989 |
|
|
// final PublicReentrantReadWriteLock lock = |
990 |
|
|
// new PublicReentrantReadWriteLock(fair); |
991 |
|
|
// final Condition c = lock.writeLock().newCondition(); |
992 |
|
|
// final CountDownLatch locked = new CountDownLatch(1); |
993 |
|
|
// Thread t = newStartedThread(new CheckedRunnable() { |
994 |
|
|
// public void realRun() throws InterruptedException { |
995 |
|
|
// lock.writeLock().lock(); |
996 |
|
|
// locked.countDown(); |
997 |
|
|
// c.await(); |
998 |
|
|
// lock.writeLock().unlock(); |
999 |
|
|
// }}); |
1000 |
|
|
|
1001 |
|
|
// await(locked); |
1002 |
|
|
// lock.writeLock().lock(); |
1003 |
|
|
// assertHasWaiters(lock, c, t); |
1004 |
|
|
// c.signal(); |
1005 |
|
|
// assertHasNoWaiters(lock, c); |
1006 |
|
|
// assertTrue(t.isAlive()); |
1007 |
|
|
// lock.writeLock().unlock(); |
1008 |
|
|
// awaitTermination(t); |
1009 |
|
|
// } |
1010 |
|
|
|
1011 |
|
|
// /** |
1012 |
|
|
// * awaitUninterruptibly is uninterruptible |
1013 |
|
|
// */ |
1014 |
|
|
// public void testAwaitUninterruptibly() { testAwaitUninterruptibly(false); } |
1015 |
|
|
// public void testAwaitUninterruptibly_fair() { testAwaitUninterruptibly(true); } |
1016 |
|
|
// public void testAwaitUninterruptibly(boolean fair) { |
1017 |
|
|
// final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
1018 |
|
|
// final Condition c = lock.writeLock().newCondition(); |
1019 |
|
|
// final CountDownLatch pleaseInterrupt = new CountDownLatch(2); |
1020 |
|
|
|
1021 |
|
|
// Thread t1 = newStartedThread(new CheckedRunnable() { |
1022 |
|
|
// public void realRun() { |
1023 |
|
|
// // Interrupt before awaitUninterruptibly |
1024 |
|
|
// lock.writeLock().lock(); |
1025 |
|
|
// pleaseInterrupt.countDown(); |
1026 |
|
|
// Thread.currentThread().interrupt(); |
1027 |
|
|
// c.awaitUninterruptibly(); |
1028 |
|
|
// assertTrue(Thread.interrupted()); |
1029 |
|
|
// lock.writeLock().unlock(); |
1030 |
|
|
// }}); |
1031 |
|
|
|
1032 |
|
|
// Thread t2 = newStartedThread(new CheckedRunnable() { |
1033 |
|
|
// public void realRun() { |
1034 |
|
|
// // Interrupt during awaitUninterruptibly |
1035 |
|
|
// lock.writeLock().lock(); |
1036 |
|
|
// pleaseInterrupt.countDown(); |
1037 |
|
|
// c.awaitUninterruptibly(); |
1038 |
|
|
// assertTrue(Thread.interrupted()); |
1039 |
|
|
// lock.writeLock().unlock(); |
1040 |
|
|
// }}); |
1041 |
|
|
|
1042 |
|
|
// await(pleaseInterrupt); |
1043 |
|
|
// lock.writeLock().lock(); |
1044 |
|
|
// lock.writeLock().unlock(); |
1045 |
|
|
// t2.interrupt(); |
1046 |
|
|
|
1047 |
|
|
// assertThreadStaysAlive(t1); |
1048 |
|
|
// assertTrue(t2.isAlive()); |
1049 |
|
|
|
1050 |
|
|
// lock.writeLock().lock(); |
1051 |
|
|
// c.signalAll(); |
1052 |
|
|
// lock.writeLock().unlock(); |
1053 |
|
|
|
1054 |
|
|
// awaitTermination(t1); |
1055 |
|
|
// awaitTermination(t2); |
1056 |
|
|
// } |
1057 |
|
|
|
1058 |
|
|
// /** |
1059 |
|
|
// * await/awaitNanos/awaitUntil is interruptible |
1060 |
|
|
// */ |
1061 |
|
|
// public void testInterruptible_await() { testInterruptible(false, AwaitMethod.await); } |
1062 |
|
|
// public void testInterruptible_await_fair() { testInterruptible(true, AwaitMethod.await); } |
1063 |
|
|
// public void testInterruptible_awaitTimed() { testInterruptible(false, AwaitMethod.awaitTimed); } |
1064 |
|
|
// public void testInterruptible_awaitTimed_fair() { testInterruptible(true, AwaitMethod.awaitTimed); } |
1065 |
|
|
// public void testInterruptible_awaitNanos() { testInterruptible(false, AwaitMethod.awaitNanos); } |
1066 |
|
|
// public void testInterruptible_awaitNanos_fair() { testInterruptible(true, AwaitMethod.awaitNanos); } |
1067 |
|
|
// public void testInterruptible_awaitUntil() { testInterruptible(false, AwaitMethod.awaitUntil); } |
1068 |
|
|
// public void testInterruptible_awaitUntil_fair() { testInterruptible(true, AwaitMethod.awaitUntil); } |
1069 |
|
|
// public void testInterruptible(boolean fair, final AwaitMethod awaitMethod) { |
1070 |
|
|
// final PublicReentrantReadWriteLock lock = |
1071 |
|
|
// new PublicReentrantReadWriteLock(fair); |
1072 |
|
|
// final Condition c = lock.writeLock().newCondition(); |
1073 |
|
|
// final CountDownLatch locked = new CountDownLatch(1); |
1074 |
|
|
// Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
1075 |
|
|
// public void realRun() throws InterruptedException { |
1076 |
|
|
// lock.writeLock().lock(); |
1077 |
|
|
// assertWriteLockedByMoi(lock); |
1078 |
|
|
// assertHasNoWaiters(lock, c); |
1079 |
|
|
// locked.countDown(); |
1080 |
|
|
// try { |
1081 |
|
|
// await(c, awaitMethod); |
1082 |
|
|
// } finally { |
1083 |
|
|
// assertWriteLockedByMoi(lock); |
1084 |
|
|
// assertHasNoWaiters(lock, c); |
1085 |
|
|
// lock.writeLock().unlock(); |
1086 |
|
|
// assertFalse(Thread.interrupted()); |
1087 |
|
|
// } |
1088 |
|
|
// }}); |
1089 |
|
|
|
1090 |
|
|
// await(locked); |
1091 |
|
|
// assertHasWaiters(lock, c, t); |
1092 |
|
|
// t.interrupt(); |
1093 |
|
|
// awaitTermination(t); |
1094 |
|
|
// assertNotWriteLocked(lock); |
1095 |
|
|
// } |
1096 |
|
|
|
1097 |
|
|
// /** |
1098 |
|
|
// * signalAll wakes up all threads |
1099 |
|
|
// */ |
1100 |
|
|
// public void testSignalAll_await() { testSignalAll(false, AwaitMethod.await); } |
1101 |
|
|
// public void testSignalAll_await_fair() { testSignalAll(true, AwaitMethod.await); } |
1102 |
|
|
// public void testSignalAll_awaitTimed() { testSignalAll(false, AwaitMethod.awaitTimed); } |
1103 |
|
|
// public void testSignalAll_awaitTimed_fair() { testSignalAll(true, AwaitMethod.awaitTimed); } |
1104 |
|
|
// public void testSignalAll_awaitNanos() { testSignalAll(false, AwaitMethod.awaitNanos); } |
1105 |
|
|
// public void testSignalAll_awaitNanos_fair() { testSignalAll(true, AwaitMethod.awaitNanos); } |
1106 |
|
|
// public void testSignalAll_awaitUntil() { testSignalAll(false, AwaitMethod.awaitUntil); } |
1107 |
|
|
// public void testSignalAll_awaitUntil_fair() { testSignalAll(true, AwaitMethod.awaitUntil); } |
1108 |
|
|
// public void testSignalAll(boolean fair, final AwaitMethod awaitMethod) { |
1109 |
|
|
// final PublicReentrantReadWriteLock lock = |
1110 |
|
|
// new PublicReentrantReadWriteLock(fair); |
1111 |
|
|
// final Condition c = lock.writeLock().newCondition(); |
1112 |
|
|
// final CountDownLatch locked = new CountDownLatch(2); |
1113 |
|
|
// final Lock writeLock = lock.writeLock(); |
1114 |
|
|
// class Awaiter extends CheckedRunnable { |
1115 |
|
|
// public void realRun() throws InterruptedException { |
1116 |
|
|
// writeLock.lock(); |
1117 |
|
|
// locked.countDown(); |
1118 |
|
|
// await(c, awaitMethod); |
1119 |
|
|
// writeLock.unlock(); |
1120 |
|
|
// } |
1121 |
|
|
// } |
1122 |
|
|
|
1123 |
|
|
// Thread t1 = newStartedThread(new Awaiter()); |
1124 |
|
|
// Thread t2 = newStartedThread(new Awaiter()); |
1125 |
|
|
|
1126 |
|
|
// await(locked); |
1127 |
|
|
// writeLock.lock(); |
1128 |
|
|
// assertHasWaiters(lock, c, t1, t2); |
1129 |
|
|
// c.signalAll(); |
1130 |
|
|
// assertHasNoWaiters(lock, c); |
1131 |
|
|
// writeLock.unlock(); |
1132 |
|
|
// awaitTermination(t1); |
1133 |
|
|
// awaitTermination(t2); |
1134 |
|
|
// } |
1135 |
|
|
|
1136 |
|
|
// /** |
1137 |
|
|
// * signal wakes up waiting threads in FIFO order |
1138 |
|
|
// */ |
1139 |
|
|
// public void testSignalWakesFifo() { testSignalWakesFifo(false); } |
1140 |
|
|
// public void testSignalWakesFifo_fair() { testSignalWakesFifo(true); } |
1141 |
|
|
// public void testSignalWakesFifo(boolean fair) { |
1142 |
|
|
// final PublicReentrantReadWriteLock lock = |
1143 |
|
|
// new PublicReentrantReadWriteLock(fair); |
1144 |
|
|
// final Condition c = lock.writeLock().newCondition(); |
1145 |
|
|
// final CountDownLatch locked1 = new CountDownLatch(1); |
1146 |
|
|
// final CountDownLatch locked2 = new CountDownLatch(1); |
1147 |
|
|
// final Lock writeLock = lock.writeLock(); |
1148 |
|
|
// Thread t1 = newStartedThread(new CheckedRunnable() { |
1149 |
|
|
// public void realRun() throws InterruptedException { |
1150 |
|
|
// writeLock.lock(); |
1151 |
|
|
// locked1.countDown(); |
1152 |
|
|
// c.await(); |
1153 |
|
|
// writeLock.unlock(); |
1154 |
|
|
// }}); |
1155 |
|
|
|
1156 |
|
|
// await(locked1); |
1157 |
|
|
|
1158 |
|
|
// Thread t2 = newStartedThread(new CheckedRunnable() { |
1159 |
|
|
// public void realRun() throws InterruptedException { |
1160 |
|
|
// writeLock.lock(); |
1161 |
|
|
// locked2.countDown(); |
1162 |
|
|
// c.await(); |
1163 |
|
|
// writeLock.unlock(); |
1164 |
|
|
// }}); |
1165 |
|
|
|
1166 |
|
|
// await(locked2); |
1167 |
|
|
|
1168 |
|
|
// writeLock.lock(); |
1169 |
|
|
// assertHasWaiters(lock, c, t1, t2); |
1170 |
|
|
// assertFalse(lock.hasQueuedThreads()); |
1171 |
|
|
// c.signal(); |
1172 |
|
|
// assertHasWaiters(lock, c, t2); |
1173 |
|
|
// assertTrue(lock.hasQueuedThread(t1)); |
1174 |
|
|
// assertFalse(lock.hasQueuedThread(t2)); |
1175 |
|
|
// c.signal(); |
1176 |
|
|
// assertHasNoWaiters(lock, c); |
1177 |
|
|
// assertTrue(lock.hasQueuedThread(t1)); |
1178 |
|
|
// assertTrue(lock.hasQueuedThread(t2)); |
1179 |
|
|
// writeLock.unlock(); |
1180 |
|
|
// awaitTermination(t1); |
1181 |
|
|
// awaitTermination(t2); |
1182 |
|
|
// } |
1183 |
|
|
|
1184 |
|
|
// /** |
1185 |
|
|
// * await after multiple reentrant locking preserves lock count |
1186 |
|
|
// */ |
1187 |
|
|
// public void testAwaitLockCount() { testAwaitLockCount(false); } |
1188 |
|
|
// public void testAwaitLockCount_fair() { testAwaitLockCount(true); } |
1189 |
|
|
// public void testAwaitLockCount(boolean fair) { |
1190 |
|
|
// final PublicReentrantReadWriteLock lock = |
1191 |
|
|
// new PublicReentrantReadWriteLock(fair); |
1192 |
|
|
// final Condition c = lock.writeLock().newCondition(); |
1193 |
|
|
// final CountDownLatch locked = new CountDownLatch(2); |
1194 |
|
|
// Thread t1 = newStartedThread(new CheckedRunnable() { |
1195 |
|
|
// public void realRun() throws InterruptedException { |
1196 |
|
|
// lock.writeLock().lock(); |
1197 |
|
|
// assertWriteLockedByMoi(lock); |
1198 |
|
|
// assertEquals(1, lock.writeLock().getHoldCount()); |
1199 |
|
|
// locked.countDown(); |
1200 |
|
|
// c.await(); |
1201 |
|
|
// assertWriteLockedByMoi(lock); |
1202 |
|
|
// assertEquals(1, lock.writeLock().getHoldCount()); |
1203 |
|
|
// lock.writeLock().unlock(); |
1204 |
|
|
// }}); |
1205 |
|
|
|
1206 |
|
|
// Thread t2 = newStartedThread(new CheckedRunnable() { |
1207 |
|
|
// public void realRun() throws InterruptedException { |
1208 |
|
|
// lock.writeLock().lock(); |
1209 |
|
|
// lock.writeLock().lock(); |
1210 |
|
|
// assertWriteLockedByMoi(lock); |
1211 |
|
|
// assertEquals(2, lock.writeLock().getHoldCount()); |
1212 |
|
|
// locked.countDown(); |
1213 |
|
|
// c.await(); |
1214 |
|
|
// assertWriteLockedByMoi(lock); |
1215 |
|
|
// assertEquals(2, lock.writeLock().getHoldCount()); |
1216 |
|
|
// lock.writeLock().unlock(); |
1217 |
|
|
// lock.writeLock().unlock(); |
1218 |
|
|
// }}); |
1219 |
|
|
|
1220 |
|
|
// await(locked); |
1221 |
|
|
// lock.writeLock().lock(); |
1222 |
|
|
// assertHasWaiters(lock, c, t1, t2); |
1223 |
|
|
// c.signalAll(); |
1224 |
|
|
// assertHasNoWaiters(lock, c); |
1225 |
|
|
// lock.writeLock().unlock(); |
1226 |
|
|
// awaitTermination(t1); |
1227 |
|
|
// awaitTermination(t2); |
1228 |
|
|
// } |
1229 |
|
|
|
1230 |
|
|
// /** |
1231 |
|
|
// * A serialized lock deserializes as unlocked |
1232 |
|
|
// */ |
1233 |
|
|
// public void testSerialization() { testSerialization(false); } |
1234 |
|
|
// public void testSerialization_fair() { testSerialization(true); } |
1235 |
|
|
// public void testSerialization(boolean fair) { |
1236 |
|
|
// ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
1237 |
|
|
// lock.writeLock().lock(); |
1238 |
|
|
// lock.readLock().lock(); |
1239 |
|
|
|
1240 |
|
|
// ReentrantReadWriteLock clone = serialClone(lock); |
1241 |
|
|
// assertEquals(lock.isFair(), clone.isFair()); |
1242 |
|
|
// assertTrue(lock.isWriteLocked()); |
1243 |
|
|
// assertFalse(clone.isWriteLocked()); |
1244 |
|
|
// assertEquals(1, lock.getReadLockCount()); |
1245 |
|
|
// assertEquals(0, clone.getReadLockCount()); |
1246 |
|
|
// clone.writeLock().lock(); |
1247 |
|
|
// clone.readLock().lock(); |
1248 |
|
|
// assertTrue(clone.isWriteLocked()); |
1249 |
|
|
// assertEquals(1, clone.getReadLockCount()); |
1250 |
|
|
// clone.readLock().unlock(); |
1251 |
|
|
// clone.writeLock().unlock(); |
1252 |
|
|
// assertFalse(clone.isWriteLocked()); |
1253 |
|
|
// assertEquals(1, lock.getReadLockCount()); |
1254 |
|
|
// assertEquals(0, clone.getReadLockCount()); |
1255 |
|
|
// } |
1256 |
|
|
|
1257 |
|
|
// /** |
1258 |
|
|
// * hasQueuedThreads reports whether there are waiting threads |
1259 |
|
|
// */ |
1260 |
|
|
// public void testHasQueuedThreads() { testHasQueuedThreads(false); } |
1261 |
|
|
// public void testHasQueuedThreads_fair() { testHasQueuedThreads(true); } |
1262 |
|
|
// public void testHasQueuedThreads(boolean fair) { |
1263 |
|
|
// final PublicReentrantReadWriteLock lock = |
1264 |
|
|
// new PublicReentrantReadWriteLock(fair); |
1265 |
|
|
// Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
1266 |
|
|
// Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
1267 |
|
|
// assertFalse(lock.hasQueuedThreads()); |
1268 |
|
|
// lock.writeLock().lock(); |
1269 |
|
|
// assertFalse(lock.hasQueuedThreads()); |
1270 |
|
|
// t1.start(); |
1271 |
|
|
// waitForQueuedThread(lock, t1); |
1272 |
|
|
// assertTrue(lock.hasQueuedThreads()); |
1273 |
|
|
// t2.start(); |
1274 |
|
|
// waitForQueuedThread(lock, t2); |
1275 |
|
|
// assertTrue(lock.hasQueuedThreads()); |
1276 |
|
|
// t1.interrupt(); |
1277 |
|
|
// awaitTermination(t1); |
1278 |
|
|
// assertTrue(lock.hasQueuedThreads()); |
1279 |
|
|
// lock.writeLock().unlock(); |
1280 |
|
|
// awaitTermination(t2); |
1281 |
|
|
// assertFalse(lock.hasQueuedThreads()); |
1282 |
|
|
// } |
1283 |
|
|
|
1284 |
|
|
// /** |
1285 |
|
|
// * hasQueuedThread(null) throws NPE |
1286 |
|
|
// */ |
1287 |
|
|
// public void testHasQueuedThreadNPE() { testHasQueuedThreadNPE(false); } |
1288 |
|
|
// public void testHasQueuedThreadNPE_fair() { testHasQueuedThreadNPE(true); } |
1289 |
|
|
// public void testHasQueuedThreadNPE(boolean fair) { |
1290 |
|
|
// final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
1291 |
|
|
// try { |
1292 |
|
|
// lock.hasQueuedThread(null); |
1293 |
|
|
// shouldThrow(); |
1294 |
|
|
// } catch (NullPointerException success) {} |
1295 |
|
|
// } |
1296 |
|
|
|
1297 |
|
|
// /** |
1298 |
|
|
// * hasQueuedThread reports whether a thread is queued |
1299 |
|
|
// */ |
1300 |
|
|
// public void testHasQueuedThread() { testHasQueuedThread(false); } |
1301 |
|
|
// public void testHasQueuedThread_fair() { testHasQueuedThread(true); } |
1302 |
|
|
// public void testHasQueuedThread(boolean fair) { |
1303 |
|
|
// final PublicReentrantReadWriteLock lock = |
1304 |
|
|
// new PublicReentrantReadWriteLock(fair); |
1305 |
|
|
// Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
1306 |
|
|
// Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
1307 |
|
|
// assertFalse(lock.hasQueuedThread(t1)); |
1308 |
|
|
// assertFalse(lock.hasQueuedThread(t2)); |
1309 |
|
|
// lock.writeLock().lock(); |
1310 |
|
|
// t1.start(); |
1311 |
|
|
// waitForQueuedThread(lock, t1); |
1312 |
|
|
// assertTrue(lock.hasQueuedThread(t1)); |
1313 |
|
|
// assertFalse(lock.hasQueuedThread(t2)); |
1314 |
|
|
// t2.start(); |
1315 |
|
|
// waitForQueuedThread(lock, t2); |
1316 |
|
|
// assertTrue(lock.hasQueuedThread(t1)); |
1317 |
|
|
// assertTrue(lock.hasQueuedThread(t2)); |
1318 |
|
|
// t1.interrupt(); |
1319 |
|
|
// awaitTermination(t1); |
1320 |
|
|
// assertFalse(lock.hasQueuedThread(t1)); |
1321 |
|
|
// assertTrue(lock.hasQueuedThread(t2)); |
1322 |
|
|
// lock.writeLock().unlock(); |
1323 |
|
|
// awaitTermination(t2); |
1324 |
|
|
// assertFalse(lock.hasQueuedThread(t1)); |
1325 |
|
|
// assertFalse(lock.hasQueuedThread(t2)); |
1326 |
|
|
// } |
1327 |
|
|
|
1328 |
|
|
// /** |
1329 |
|
|
// * getQueueLength reports number of waiting threads |
1330 |
|
|
// */ |
1331 |
|
|
// public void testGetQueueLength() { testGetQueueLength(false); } |
1332 |
|
|
// public void testGetQueueLength_fair() { testGetQueueLength(true); } |
1333 |
|
|
// public void testGetQueueLength(boolean fair) { |
1334 |
|
|
// final PublicReentrantReadWriteLock lock = |
1335 |
|
|
// new PublicReentrantReadWriteLock(fair); |
1336 |
|
|
// Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
1337 |
|
|
// Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
1338 |
|
|
// assertEquals(0, lock.getQueueLength()); |
1339 |
|
|
// lock.writeLock().lock(); |
1340 |
|
|
// t1.start(); |
1341 |
|
|
// waitForQueuedThread(lock, t1); |
1342 |
|
|
// assertEquals(1, lock.getQueueLength()); |
1343 |
|
|
// t2.start(); |
1344 |
|
|
// waitForQueuedThread(lock, t2); |
1345 |
|
|
// assertEquals(2, lock.getQueueLength()); |
1346 |
|
|
// t1.interrupt(); |
1347 |
|
|
// awaitTermination(t1); |
1348 |
|
|
// assertEquals(1, lock.getQueueLength()); |
1349 |
|
|
// lock.writeLock().unlock(); |
1350 |
|
|
// awaitTermination(t2); |
1351 |
|
|
// assertEquals(0, lock.getQueueLength()); |
1352 |
|
|
// } |
1353 |
|
|
|
1354 |
|
|
// /** |
1355 |
|
|
// * getQueuedThreads includes waiting threads |
1356 |
|
|
// */ |
1357 |
|
|
// public void testGetQueuedThreads() { testGetQueuedThreads(false); } |
1358 |
|
|
// public void testGetQueuedThreads_fair() { testGetQueuedThreads(true); } |
1359 |
|
|
// public void testGetQueuedThreads(boolean fair) { |
1360 |
|
|
// final PublicReentrantReadWriteLock lock = |
1361 |
|
|
// new PublicReentrantReadWriteLock(fair); |
1362 |
|
|
// Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
1363 |
|
|
// Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
1364 |
|
|
// assertTrue(lock.getQueuedThreads().isEmpty()); |
1365 |
|
|
// lock.writeLock().lock(); |
1366 |
|
|
// assertTrue(lock.getQueuedThreads().isEmpty()); |
1367 |
|
|
// t1.start(); |
1368 |
|
|
// waitForQueuedThread(lock, t1); |
1369 |
|
|
// assertEquals(1, lock.getQueuedThreads().size()); |
1370 |
|
|
// assertTrue(lock.getQueuedThreads().contains(t1)); |
1371 |
|
|
// t2.start(); |
1372 |
|
|
// waitForQueuedThread(lock, t2); |
1373 |
|
|
// assertEquals(2, lock.getQueuedThreads().size()); |
1374 |
|
|
// assertTrue(lock.getQueuedThreads().contains(t1)); |
1375 |
|
|
// assertTrue(lock.getQueuedThreads().contains(t2)); |
1376 |
|
|
// t1.interrupt(); |
1377 |
|
|
// awaitTermination(t1); |
1378 |
|
|
// assertFalse(lock.getQueuedThreads().contains(t1)); |
1379 |
|
|
// assertTrue(lock.getQueuedThreads().contains(t2)); |
1380 |
|
|
// assertEquals(1, lock.getQueuedThreads().size()); |
1381 |
|
|
// lock.writeLock().unlock(); |
1382 |
|
|
// awaitTermination(t2); |
1383 |
|
|
// assertTrue(lock.getQueuedThreads().isEmpty()); |
1384 |
|
|
// } |
1385 |
|
|
|
1386 |
|
|
// /** |
1387 |
|
|
// * hasWaiters throws NPE if null |
1388 |
|
|
// */ |
1389 |
|
|
// public void testHasWaitersNPE() { testHasWaitersNPE(false); } |
1390 |
|
|
// public void testHasWaitersNPE_fair() { testHasWaitersNPE(true); } |
1391 |
|
|
// public void testHasWaitersNPE(boolean fair) { |
1392 |
|
|
// final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
1393 |
|
|
// try { |
1394 |
|
|
// lock.hasWaiters(null); |
1395 |
|
|
// shouldThrow(); |
1396 |
|
|
// } catch (NullPointerException success) {} |
1397 |
|
|
// } |
1398 |
|
|
|
1399 |
|
|
// /** |
1400 |
|
|
// * getWaitQueueLength throws NPE if null |
1401 |
|
|
// */ |
1402 |
|
|
// public void testGetWaitQueueLengthNPE() { testGetWaitQueueLengthNPE(false); } |
1403 |
|
|
// public void testGetWaitQueueLengthNPE_fair() { testGetWaitQueueLengthNPE(true); } |
1404 |
|
|
// public void testGetWaitQueueLengthNPE(boolean fair) { |
1405 |
|
|
// final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
1406 |
|
|
// try { |
1407 |
|
|
// lock.getWaitQueueLength(null); |
1408 |
|
|
// shouldThrow(); |
1409 |
|
|
// } catch (NullPointerException success) {} |
1410 |
|
|
// } |
1411 |
|
|
|
1412 |
|
|
// /** |
1413 |
|
|
// * getWaitingThreads throws NPE if null |
1414 |
|
|
// */ |
1415 |
|
|
// public void testGetWaitingThreadsNPE() { testGetWaitingThreadsNPE(false); } |
1416 |
|
|
// public void testGetWaitingThreadsNPE_fair() { testGetWaitingThreadsNPE(true); } |
1417 |
|
|
// public void testGetWaitingThreadsNPE(boolean fair) { |
1418 |
|
|
// final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(fair); |
1419 |
|
|
// try { |
1420 |
|
|
// lock.getWaitingThreads(null); |
1421 |
|
|
// shouldThrow(); |
1422 |
|
|
// } catch (NullPointerException success) {} |
1423 |
|
|
// } |
1424 |
|
|
|
1425 |
|
|
// /** |
1426 |
|
|
// * hasWaiters throws IllegalArgumentException if not owned |
1427 |
|
|
// */ |
1428 |
|
|
// public void testHasWaitersIAE() { testHasWaitersIAE(false); } |
1429 |
|
|
// public void testHasWaitersIAE_fair() { testHasWaitersIAE(true); } |
1430 |
|
|
// public void testHasWaitersIAE(boolean fair) { |
1431 |
|
|
// final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
1432 |
|
|
// final Condition c = lock.writeLock().newCondition(); |
1433 |
|
|
// final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(fair); |
1434 |
|
|
// try { |
1435 |
|
|
// lock2.hasWaiters(c); |
1436 |
|
|
// shouldThrow(); |
1437 |
|
|
// } catch (IllegalArgumentException success) {} |
1438 |
|
|
// } |
1439 |
|
|
|
1440 |
|
|
// /** |
1441 |
|
|
// * hasWaiters throws IllegalMonitorStateException if not locked |
1442 |
|
|
// */ |
1443 |
|
|
// public void testHasWaitersIMSE() { testHasWaitersIMSE(false); } |
1444 |
|
|
// public void testHasWaitersIMSE_fair() { testHasWaitersIMSE(true); } |
1445 |
|
|
// public void testHasWaitersIMSE(boolean fair) { |
1446 |
|
|
// final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
1447 |
|
|
// final Condition c = lock.writeLock().newCondition(); |
1448 |
|
|
// try { |
1449 |
|
|
// lock.hasWaiters(c); |
1450 |
|
|
// shouldThrow(); |
1451 |
|
|
// } catch (IllegalMonitorStateException success) {} |
1452 |
|
|
// } |
1453 |
|
|
|
1454 |
|
|
// /** |
1455 |
|
|
// * getWaitQueueLength throws IllegalArgumentException if not owned |
1456 |
|
|
// */ |
1457 |
|
|
// public void testGetWaitQueueLengthIAE() { testGetWaitQueueLengthIAE(false); } |
1458 |
|
|
// public void testGetWaitQueueLengthIAE_fair() { testGetWaitQueueLengthIAE(true); } |
1459 |
|
|
// public void testGetWaitQueueLengthIAE(boolean fair) { |
1460 |
|
|
// final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
1461 |
|
|
// final Condition c = lock.writeLock().newCondition(); |
1462 |
|
|
// final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(fair); |
1463 |
|
|
// try { |
1464 |
|
|
// lock2.getWaitQueueLength(c); |
1465 |
|
|
// shouldThrow(); |
1466 |
|
|
// } catch (IllegalArgumentException success) {} |
1467 |
|
|
// } |
1468 |
|
|
|
1469 |
|
|
// /** |
1470 |
|
|
// * getWaitQueueLength throws IllegalMonitorStateException if not locked |
1471 |
|
|
// */ |
1472 |
|
|
// public void testGetWaitQueueLengthIMSE() { testGetWaitQueueLengthIMSE(false); } |
1473 |
|
|
// public void testGetWaitQueueLengthIMSE_fair() { testGetWaitQueueLengthIMSE(true); } |
1474 |
|
|
// public void testGetWaitQueueLengthIMSE(boolean fair) { |
1475 |
|
|
// final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
1476 |
|
|
// final Condition c = lock.writeLock().newCondition(); |
1477 |
|
|
// try { |
1478 |
|
|
// lock.getWaitQueueLength(c); |
1479 |
|
|
// shouldThrow(); |
1480 |
|
|
// } catch (IllegalMonitorStateException success) {} |
1481 |
|
|
// } |
1482 |
|
|
|
1483 |
|
|
// /** |
1484 |
|
|
// * getWaitingThreads throws IllegalArgumentException if not owned |
1485 |
|
|
// */ |
1486 |
|
|
// public void testGetWaitingThreadsIAE() { testGetWaitingThreadsIAE(false); } |
1487 |
|
|
// public void testGetWaitingThreadsIAE_fair() { testGetWaitingThreadsIAE(true); } |
1488 |
|
|
// public void testGetWaitingThreadsIAE(boolean fair) { |
1489 |
|
|
// final PublicReentrantReadWriteLock lock = |
1490 |
|
|
// new PublicReentrantReadWriteLock(fair); |
1491 |
|
|
// final Condition c = lock.writeLock().newCondition(); |
1492 |
|
|
// final PublicReentrantReadWriteLock lock2 = |
1493 |
|
|
// new PublicReentrantReadWriteLock(fair); |
1494 |
|
|
// try { |
1495 |
|
|
// lock2.getWaitingThreads(c); |
1496 |
|
|
// shouldThrow(); |
1497 |
|
|
// } catch (IllegalArgumentException success) {} |
1498 |
|
|
// } |
1499 |
|
|
|
1500 |
|
|
// /** |
1501 |
|
|
// * getWaitingThreads throws IllegalMonitorStateException if not locked |
1502 |
|
|
// */ |
1503 |
|
|
// public void testGetWaitingThreadsIMSE() { testGetWaitingThreadsIMSE(false); } |
1504 |
|
|
// public void testGetWaitingThreadsIMSE_fair() { testGetWaitingThreadsIMSE(true); } |
1505 |
|
|
// public void testGetWaitingThreadsIMSE(boolean fair) { |
1506 |
|
|
// final PublicReentrantReadWriteLock lock = |
1507 |
|
|
// new PublicReentrantReadWriteLock(fair); |
1508 |
|
|
// final Condition c = lock.writeLock().newCondition(); |
1509 |
|
|
// try { |
1510 |
|
|
// lock.getWaitingThreads(c); |
1511 |
|
|
// shouldThrow(); |
1512 |
|
|
// } catch (IllegalMonitorStateException success) {} |
1513 |
|
|
// } |
1514 |
|
|
|
1515 |
|
|
// /** |
1516 |
|
|
// * hasWaiters returns true when a thread is waiting, else false |
1517 |
|
|
// */ |
1518 |
|
|
// public void testHasWaiters() { testHasWaiters(false); } |
1519 |
|
|
// public void testHasWaiters_fair() { testHasWaiters(true); } |
1520 |
|
|
// public void testHasWaiters(boolean fair) { |
1521 |
|
|
// final PublicReentrantReadWriteLock lock = |
1522 |
|
|
// new PublicReentrantReadWriteLock(fair); |
1523 |
|
|
// final Condition c = lock.writeLock().newCondition(); |
1524 |
|
|
// final CountDownLatch locked = new CountDownLatch(1); |
1525 |
|
|
// Thread t = newStartedThread(new CheckedRunnable() { |
1526 |
|
|
// public void realRun() throws InterruptedException { |
1527 |
|
|
// lock.writeLock().lock(); |
1528 |
|
|
// assertHasNoWaiters(lock, c); |
1529 |
|
|
// assertFalse(lock.hasWaiters(c)); |
1530 |
|
|
// locked.countDown(); |
1531 |
|
|
// c.await(); |
1532 |
|
|
// assertHasNoWaiters(lock, c); |
1533 |
|
|
// assertFalse(lock.hasWaiters(c)); |
1534 |
|
|
// lock.writeLock().unlock(); |
1535 |
|
|
// }}); |
1536 |
|
|
|
1537 |
|
|
// await(locked); |
1538 |
|
|
// lock.writeLock().lock(); |
1539 |
|
|
// assertHasWaiters(lock, c, t); |
1540 |
|
|
// assertTrue(lock.hasWaiters(c)); |
1541 |
|
|
// c.signal(); |
1542 |
|
|
// assertHasNoWaiters(lock, c); |
1543 |
|
|
// assertFalse(lock.hasWaiters(c)); |
1544 |
|
|
// lock.writeLock().unlock(); |
1545 |
|
|
// awaitTermination(t); |
1546 |
|
|
// assertHasNoWaiters(lock, c); |
1547 |
|
|
// } |
1548 |
|
|
|
1549 |
|
|
// /** |
1550 |
|
|
// * getWaitQueueLength returns number of waiting threads |
1551 |
|
|
// */ |
1552 |
|
|
// public void testGetWaitQueueLength() { testGetWaitQueueLength(false); } |
1553 |
|
|
// public void testGetWaitQueueLength_fair() { testGetWaitQueueLength(true); } |
1554 |
|
|
// public void testGetWaitQueueLength(boolean fair) { |
1555 |
|
|
// final PublicReentrantReadWriteLock lock = |
1556 |
|
|
// new PublicReentrantReadWriteLock(fair); |
1557 |
|
|
// final Condition c = lock.writeLock().newCondition(); |
1558 |
|
|
// final CountDownLatch locked = new CountDownLatch(1); |
1559 |
|
|
// Thread t = newStartedThread(new CheckedRunnable() { |
1560 |
|
|
// public void realRun() throws InterruptedException { |
1561 |
|
|
// lock.writeLock().lock(); |
1562 |
|
|
// assertEquals(0, lock.getWaitQueueLength(c)); |
1563 |
|
|
// locked.countDown(); |
1564 |
|
|
// c.await(); |
1565 |
|
|
// lock.writeLock().unlock(); |
1566 |
|
|
// }}); |
1567 |
|
|
|
1568 |
|
|
// await(locked); |
1569 |
|
|
// lock.writeLock().lock(); |
1570 |
|
|
// assertHasWaiters(lock, c, t); |
1571 |
|
|
// assertEquals(1, lock.getWaitQueueLength(c)); |
1572 |
|
|
// c.signal(); |
1573 |
|
|
// assertHasNoWaiters(lock, c); |
1574 |
|
|
// assertEquals(0, lock.getWaitQueueLength(c)); |
1575 |
|
|
// lock.writeLock().unlock(); |
1576 |
|
|
// awaitTermination(t); |
1577 |
|
|
// } |
1578 |
|
|
|
1579 |
|
|
// /** |
1580 |
|
|
// * getWaitingThreads returns only and all waiting threads |
1581 |
|
|
// */ |
1582 |
|
|
// public void testGetWaitingThreads() { testGetWaitingThreads(false); } |
1583 |
|
|
// public void testGetWaitingThreads_fair() { testGetWaitingThreads(true); } |
1584 |
|
|
// public void testGetWaitingThreads(boolean fair) { |
1585 |
|
|
// final PublicReentrantReadWriteLock lock = |
1586 |
|
|
// new PublicReentrantReadWriteLock(fair); |
1587 |
|
|
// final Condition c = lock.writeLock().newCondition(); |
1588 |
|
|
// final CountDownLatch locked1 = new CountDownLatch(1); |
1589 |
|
|
// final CountDownLatch locked2 = new CountDownLatch(1); |
1590 |
|
|
// Thread t1 = new Thread(new CheckedRunnable() { |
1591 |
|
|
// public void realRun() throws InterruptedException { |
1592 |
|
|
// lock.writeLock().lock(); |
1593 |
|
|
// assertTrue(lock.getWaitingThreads(c).isEmpty()); |
1594 |
|
|
// locked1.countDown(); |
1595 |
|
|
// c.await(); |
1596 |
|
|
// lock.writeLock().unlock(); |
1597 |
|
|
// }}); |
1598 |
|
|
|
1599 |
|
|
// Thread t2 = new Thread(new CheckedRunnable() { |
1600 |
|
|
// public void realRun() throws InterruptedException { |
1601 |
|
|
// lock.writeLock().lock(); |
1602 |
|
|
// assertFalse(lock.getWaitingThreads(c).isEmpty()); |
1603 |
|
|
// locked2.countDown(); |
1604 |
|
|
// c.await(); |
1605 |
|
|
// lock.writeLock().unlock(); |
1606 |
|
|
// }}); |
1607 |
|
|
|
1608 |
|
|
// lock.writeLock().lock(); |
1609 |
|
|
// assertTrue(lock.getWaitingThreads(c).isEmpty()); |
1610 |
|
|
// lock.writeLock().unlock(); |
1611 |
|
|
|
1612 |
|
|
// t1.start(); |
1613 |
|
|
// await(locked1); |
1614 |
|
|
// t2.start(); |
1615 |
|
|
// await(locked2); |
1616 |
|
|
|
1617 |
|
|
// lock.writeLock().lock(); |
1618 |
|
|
// assertTrue(lock.hasWaiters(c)); |
1619 |
|
|
// assertTrue(lock.getWaitingThreads(c).contains(t1)); |
1620 |
|
|
// assertTrue(lock.getWaitingThreads(c).contains(t2)); |
1621 |
|
|
// assertEquals(2, lock.getWaitingThreads(c).size()); |
1622 |
|
|
// c.signalAll(); |
1623 |
|
|
// assertHasNoWaiters(lock, c); |
1624 |
|
|
// lock.writeLock().unlock(); |
1625 |
|
|
|
1626 |
|
|
// awaitTermination(t1); |
1627 |
|
|
// awaitTermination(t2); |
1628 |
|
|
|
1629 |
|
|
// assertHasNoWaiters(lock, c); |
1630 |
|
|
// } |
1631 |
|
|
|
1632 |
|
|
// /** |
1633 |
|
|
// * toString indicates current lock state |
1634 |
|
|
// */ |
1635 |
|
|
// public void testToString() { testToString(false); } |
1636 |
|
|
// public void testToString_fair() { testToString(true); } |
1637 |
|
|
// public void testToString(boolean fair) { |
1638 |
|
|
// ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
1639 |
|
|
// assertTrue(lock.toString().contains("Write locks = 0")); |
1640 |
|
|
// assertTrue(lock.toString().contains("Read locks = 0")); |
1641 |
|
|
// lock.writeLock().lock(); |
1642 |
|
|
// assertTrue(lock.toString().contains("Write locks = 1")); |
1643 |
|
|
// assertTrue(lock.toString().contains("Read locks = 0")); |
1644 |
|
|
// lock.writeLock().unlock(); |
1645 |
|
|
// lock.readLock().lock(); |
1646 |
|
|
// lock.readLock().lock(); |
1647 |
|
|
// assertTrue(lock.toString().contains("Write locks = 0")); |
1648 |
|
|
// assertTrue(lock.toString().contains("Read locks = 2")); |
1649 |
|
|
// } |
1650 |
|
|
|
1651 |
|
|
// /** |
1652 |
|
|
// * readLock.toString indicates current lock state |
1653 |
|
|
// */ |
1654 |
|
|
// public void testReadLockToString() { testReadLockToString(false); } |
1655 |
|
|
// public void testReadLockToString_fair() { testReadLockToString(true); } |
1656 |
|
|
// public void testReadLockToString(boolean fair) { |
1657 |
|
|
// ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
1658 |
|
|
// assertTrue(lock.readLock().toString().contains("Read locks = 0")); |
1659 |
|
|
// lock.readLock().lock(); |
1660 |
|
|
// lock.readLock().lock(); |
1661 |
|
|
// assertTrue(lock.readLock().toString().contains("Read locks = 2")); |
1662 |
|
|
// } |
1663 |
|
|
|
1664 |
|
|
// /** |
1665 |
|
|
// * writeLock.toString indicates current lock state |
1666 |
|
|
// */ |
1667 |
|
|
// public void testWriteLockToString() { testWriteLockToString(false); } |
1668 |
|
|
// public void testWriteLockToString_fair() { testWriteLockToString(true); } |
1669 |
|
|
// public void testWriteLockToString(boolean fair) { |
1670 |
|
|
// ReentrantReadWriteLock lock = new ReentrantReadWriteLock(fair); |
1671 |
|
|
// assertTrue(lock.writeLock().toString().contains("Unlocked")); |
1672 |
|
|
// lock.writeLock().lock(); |
1673 |
|
|
// assertTrue(lock.writeLock().toString().contains("Locked")); |
1674 |
|
|
// lock.writeLock().unlock(); |
1675 |
|
|
// assertTrue(lock.writeLock().toString().contains("Unlocked")); |
1676 |
|
|
// } |
1677 |
|
|
|
1678 |
|
|
} |