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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/licenses/publicdomain |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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* 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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public class ReentrantReadWriteLockTest extends JSR166TestCase { |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run (suite()); |
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junit.textui.TestRunner.run (suite()); |
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} |
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public static Test suite() { |
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return new TestSuite(ReentrantReadWriteLockTest.class); |
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public void run() { |
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try { |
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lock.writeLock().lockInterruptibly(); |
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} catch(InterruptedException success){} |
32 |
> |
} catch (InterruptedException success){} |
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} |
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} |
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|
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try { |
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lock.writeLock().lockInterruptibly(); |
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threadShouldThrow(); |
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} catch(InterruptedException success){} |
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> |
} catch (InterruptedException success){} |
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} |
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} |
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|
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*/ |
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static class PublicReentrantReadWriteLock extends ReentrantReadWriteLock { |
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PublicReentrantReadWriteLock() { super(); } |
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public Collection<Thread> getQueuedThreads() { |
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return super.getQueuedThreads(); |
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public Collection<Thread> getQueuedThreads() { |
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return super.getQueuedThreads(); |
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} |
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public Collection<Thread> getWaitingThreads(Condition c) { |
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return super.getWaitingThreads(c); |
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public Collection<Thread> getWaitingThreads(Condition c) { |
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return super.getWaitingThreads(c); |
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} |
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} |
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|
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/** |
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* Constructor sets given fairness, and is in unlocked state |
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*/ |
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public void testConstructor() { |
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> |
public void testConstructor() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
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assertFalse(rl.isFair()); |
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assertFalse(rl.isWriteLocked()); |
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/** |
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* write-locking and read-locking an unlocked lock succeed |
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*/ |
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public void testLock() { |
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> |
public void testLock() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
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rl.writeLock().lock(); |
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assertTrue(rl.isWriteLocked()); |
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assertTrue(rl.isWriteLockedByCurrentThread()); |
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assertTrue(rl.writeLock().isHeldByCurrentThread()); |
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assertEquals(0, rl.getReadLockCount()); |
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rl.writeLock().unlock(); |
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assertFalse(rl.isWriteLocked()); |
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assertFalse(rl.isWriteLockedByCurrentThread()); |
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assertFalse(rl.writeLock().isHeldByCurrentThread()); |
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assertEquals(0, rl.getReadLockCount()); |
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rl.readLock().lock(); |
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assertFalse(rl.isWriteLocked()); |
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/** |
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* locking an unlocked fair lock succeeds |
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*/ |
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public void testFairLock() { |
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public void testFairLock() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(true); |
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rl.writeLock().lock(); |
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assertTrue(rl.isWriteLocked()); |
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assertTrue(rl.isWriteLockedByCurrentThread()); |
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assertTrue(rl.writeLock().isHeldByCurrentThread()); |
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assertEquals(0, rl.getReadLockCount()); |
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rl.writeLock().unlock(); |
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assertFalse(rl.isWriteLocked()); |
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assertFalse(rl.isWriteLockedByCurrentThread()); |
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assertFalse(rl.writeLock().isHeldByCurrentThread()); |
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assertEquals(0, rl.getReadLockCount()); |
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rl.readLock().lock(); |
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assertFalse(rl.isWriteLocked()); |
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*/ |
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public void testGetWriteHoldCount() { |
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ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
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for(int i = 1; i <= SIZE; i++) { |
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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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for (int i = SIZE; i > 0; i--) { |
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lock.writeLock().unlock(); |
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assertEquals(i-1,lock.getWriteHoldCount()); |
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} |
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} |
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|
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/** |
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* WriteLock.getHoldCount returns number of recursive holds |
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*/ |
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public void testGetHoldCount() { |
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ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
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for (int i = 1; i <= SIZE; i++) { |
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lock.writeLock().lock(); |
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assertEquals(i,lock.writeLock().getHoldCount()); |
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} |
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for (int i = SIZE; i > 0; i--) { |
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lock.writeLock().unlock(); |
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assertEquals(i-1,lock.writeLock().getHoldCount()); |
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} |
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} |
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|
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/** |
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* getReadHoldCount returns number of recursive holds |
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*/ |
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public void testGetReadHoldCount() { |
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ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
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for(int i = 1; i <= SIZE; i++) { |
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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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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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|
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|
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/** |
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* write-unlocking an unlocked lock throws IllegalMonitorStateException |
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*/ |
179 |
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public void testUnlock_IllegalMonitorStateException() { |
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> |
public void testUnlock_IllegalMonitorStateException() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
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try { |
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rl.writeLock().unlock(); |
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shouldThrow(); |
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< |
} catch(IllegalMonitorStateException success){} |
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} catch (IllegalMonitorStateException success){} |
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} |
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|
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|
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/** |
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* write-lockInterruptibly is interruptible |
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*/ |
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public void testWriteLockInterruptibly_Interrupted() { |
191 |
> |
public void testWriteLockInterruptibly_Interrupted() { |
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final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
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Thread t = new Thread(new Runnable() { |
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public void run() { |
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lock.writeLock().unlock(); |
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lock.writeLock().lockInterruptibly(); |
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lock.writeLock().unlock(); |
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} catch(InterruptedException success){} |
200 |
> |
} catch (InterruptedException success){} |
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} |
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}); |
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try { |
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lock.writeLock().lock(); |
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t.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
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t.interrupt(); |
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Thread.sleep(SHORT_DELAY_MS); |
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lock.writeLock().unlock(); |
210 |
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t.join(); |
211 |
< |
} catch(Exception e){ |
211 |
> |
} catch (Exception e){ |
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unexpectedException(); |
213 |
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} |
214 |
< |
} |
214 |
> |
} |
215 |
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|
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/** |
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* timed write-tryLock is interruptible |
218 |
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*/ |
219 |
< |
public void testWriteTryLock_Interrupted() { |
219 |
> |
public void testWriteTryLock_Interrupted() { |
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final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
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lock.writeLock().lock(); |
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Thread t = new Thread(new Runnable() { |
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public void run() { |
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try { |
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lock.writeLock().tryLock(1000,TimeUnit.MILLISECONDS); |
226 |
< |
} catch(InterruptedException success){} |
226 |
> |
} catch (InterruptedException success){} |
227 |
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} |
228 |
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}); |
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try { |
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t.interrupt(); |
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lock.writeLock().unlock(); |
233 |
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t.join(); |
234 |
< |
} catch(Exception e){ |
234 |
> |
} catch (Exception e){ |
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unexpectedException(); |
236 |
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} |
237 |
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} |
239 |
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/** |
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* read-lockInterruptibly is interruptible |
241 |
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*/ |
242 |
< |
public void testReadLockInterruptibly_Interrupted() { |
242 |
> |
public void testReadLockInterruptibly_Interrupted() { |
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final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
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lock.writeLock().lock(); |
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Thread t = new Thread(new Runnable() { |
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public void run() { |
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try { |
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lock.readLock().lockInterruptibly(); |
249 |
< |
} catch(InterruptedException success){} |
249 |
> |
} catch (InterruptedException success){} |
250 |
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} |
251 |
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}); |
252 |
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try { |
253 |
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t.start(); |
254 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
255 |
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t.interrupt(); |
256 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
257 |
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lock.writeLock().unlock(); |
258 |
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t.join(); |
259 |
< |
} catch(Exception e){ |
259 |
> |
} catch (Exception e){ |
260 |
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unexpectedException(); |
261 |
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} |
262 |
< |
} |
262 |
> |
} |
263 |
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|
264 |
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/** |
265 |
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* timed read-tryLock is interruptible |
266 |
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*/ |
267 |
< |
public void testReadTryLock_Interrupted() { |
267 |
> |
public void testReadTryLock_Interrupted() { |
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final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
269 |
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lock.writeLock().lock(); |
270 |
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Thread t = new Thread(new Runnable() { |
272 |
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try { |
273 |
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lock.readLock().tryLock(1000,TimeUnit.MILLISECONDS); |
274 |
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threadShouldThrow(); |
275 |
< |
} catch(InterruptedException success){} |
275 |
> |
} catch (InterruptedException success){} |
276 |
|
} |
277 |
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}); |
278 |
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try { |
279 |
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t.start(); |
280 |
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t.interrupt(); |
281 |
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t.join(); |
282 |
< |
} catch(Exception e){ |
282 |
> |
} catch (Exception e){ |
283 |
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unexpectedException(); |
284 |
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} |
285 |
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} |
286 |
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|
287 |
< |
|
287 |
> |
|
288 |
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/** |
289 |
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* write-tryLock fails if locked |
290 |
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*/ |
291 |
< |
public void testWriteTryLockWhenLocked() { |
291 |
> |
public void testWriteTryLockWhenLocked() { |
292 |
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final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
293 |
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lock.writeLock().lock(); |
294 |
|
Thread t = new Thread(new Runnable() { |
300 |
|
t.start(); |
301 |
|
t.join(); |
302 |
|
lock.writeLock().unlock(); |
303 |
< |
} catch(Exception e){ |
303 |
> |
} catch (Exception e){ |
304 |
|
unexpectedException(); |
305 |
|
} |
306 |
< |
} |
306 |
> |
} |
307 |
|
|
308 |
|
/** |
309 |
|
* read-tryLock fails if locked |
310 |
|
*/ |
311 |
< |
public void testReadTryLockWhenLocked() { |
311 |
> |
public void testReadTryLockWhenLocked() { |
312 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
313 |
|
lock.writeLock().lock(); |
314 |
|
Thread t = new Thread(new Runnable() { |
320 |
|
t.start(); |
321 |
|
t.join(); |
322 |
|
lock.writeLock().unlock(); |
323 |
< |
} catch(Exception e){ |
323 |
> |
} catch (Exception e){ |
324 |
|
unexpectedException(); |
325 |
|
} |
326 |
< |
} |
326 |
> |
} |
327 |
|
|
328 |
|
/** |
329 |
|
* Multiple threads can hold a read lock when not write-locked |
330 |
|
*/ |
331 |
< |
public void testMultipleReadLocks() { |
331 |
> |
public void testMultipleReadLocks() { |
332 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
333 |
|
lock.readLock().lock(); |
334 |
|
Thread t = new Thread(new Runnable() { |
341 |
|
t.start(); |
342 |
|
t.join(); |
343 |
|
lock.readLock().unlock(); |
344 |
< |
} catch(Exception e){ |
344 |
> |
} catch (Exception e){ |
345 |
|
unexpectedException(); |
346 |
|
} |
347 |
< |
} |
347 |
> |
} |
348 |
|
|
349 |
|
/** |
350 |
|
* A writelock succeeds after reading threads unlock |
351 |
|
*/ |
352 |
< |
public void testWriteAfterMultipleReadLocks() { |
352 |
> |
public void testWriteAfterMultipleReadLocks() { |
353 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
354 |
|
lock.readLock().lock(); |
355 |
|
Thread t1 = new Thread(new Runnable() { |
374 |
|
t2.join(MEDIUM_DELAY_MS); |
375 |
|
assertTrue(!t1.isAlive()); |
376 |
|
assertTrue(!t2.isAlive()); |
377 |
< |
|
378 |
< |
} catch(Exception e){ |
377 |
> |
|
378 |
> |
} catch (Exception e){ |
379 |
|
unexpectedException(); |
380 |
|
} |
381 |
< |
} |
381 |
> |
} |
382 |
|
|
383 |
|
/** |
384 |
|
* Readlocks succeed after a writing thread unlocks |
385 |
|
*/ |
386 |
< |
public void testReadAfterWriteLock() { |
386 |
> |
public void testReadAfterWriteLock() { |
387 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
388 |
|
lock.writeLock().lock(); |
389 |
|
Thread t1 = new Thread(new Runnable() { |
408 |
|
t2.join(MEDIUM_DELAY_MS); |
409 |
|
assertTrue(!t1.isAlive()); |
410 |
|
assertTrue(!t2.isAlive()); |
411 |
< |
|
412 |
< |
} catch(Exception e){ |
411 |
> |
|
412 |
> |
} catch (Exception e){ |
413 |
|
unexpectedException(); |
414 |
|
} |
415 |
< |
} |
415 |
> |
} |
416 |
|
|
417 |
|
/** |
418 |
|
* Read trylock succeeds if write locked by current thread |
419 |
|
*/ |
420 |
< |
public void testReadHoldingWriteLock() { |
420 |
> |
public void testReadHoldingWriteLock() { |
421 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
422 |
|
lock.writeLock().lock(); |
423 |
|
assertTrue(lock.readLock().tryLock()); |
424 |
|
lock.readLock().unlock(); |
425 |
|
lock.writeLock().unlock(); |
426 |
< |
} |
426 |
> |
} |
427 |
|
|
428 |
|
/** |
429 |
|
* Read lock succeeds if write locked by current thread even if |
430 |
|
* other threads are waiting for readlock |
431 |
|
*/ |
432 |
< |
public void testReadHoldingWriteLock2() { |
432 |
> |
public void testReadHoldingWriteLock2() { |
433 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
434 |
|
lock.writeLock().lock(); |
435 |
|
Thread t1 = new Thread(new Runnable() { |
458 |
|
t2.join(MEDIUM_DELAY_MS); |
459 |
|
assertTrue(!t1.isAlive()); |
460 |
|
assertTrue(!t2.isAlive()); |
461 |
< |
|
462 |
< |
} catch(Exception e){ |
461 |
> |
|
462 |
> |
} catch (Exception e){ |
463 |
|
unexpectedException(); |
464 |
|
} |
465 |
< |
} |
465 |
> |
} |
466 |
|
|
467 |
|
/** |
468 |
|
* Read lock succeeds if write locked by current thread even if |
469 |
|
* other threads are waiting for writelock |
470 |
|
*/ |
471 |
< |
public void testReadHoldingWriteLock3() { |
471 |
> |
public void testReadHoldingWriteLock3() { |
472 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
473 |
|
lock.writeLock().lock(); |
474 |
|
Thread t1 = new Thread(new Runnable() { |
497 |
|
t2.join(MEDIUM_DELAY_MS); |
498 |
|
assertTrue(!t1.isAlive()); |
499 |
|
assertTrue(!t2.isAlive()); |
500 |
< |
|
501 |
< |
} catch(Exception e){ |
500 |
> |
|
501 |
> |
} catch (Exception e){ |
502 |
|
unexpectedException(); |
503 |
|
} |
504 |
< |
} |
504 |
> |
} |
505 |
|
|
506 |
|
|
507 |
|
/** |
508 |
|
* Write lock succeeds if write locked by current thread even if |
509 |
|
* other threads are waiting for writelock |
510 |
|
*/ |
511 |
< |
public void testWriteHoldingWriteLock4() { |
511 |
> |
public void testWriteHoldingWriteLock4() { |
512 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
513 |
|
lock.writeLock().lock(); |
514 |
|
Thread t1 = new Thread(new Runnable() { |
537 |
|
t2.join(MEDIUM_DELAY_MS); |
538 |
|
assertTrue(!t1.isAlive()); |
539 |
|
assertTrue(!t2.isAlive()); |
540 |
< |
|
541 |
< |
} catch(Exception e){ |
540 |
> |
|
541 |
> |
} catch (Exception e){ |
542 |
|
unexpectedException(); |
543 |
|
} |
544 |
< |
} |
544 |
> |
} |
545 |
|
|
546 |
|
|
547 |
|
/** |
548 |
|
* Fair Read trylock succeeds if write locked by current thread |
549 |
|
*/ |
550 |
< |
public void testReadHoldingWriteLockFair() { |
550 |
> |
public void testReadHoldingWriteLockFair() { |
551 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
552 |
|
lock.writeLock().lock(); |
553 |
|
assertTrue(lock.readLock().tryLock()); |
554 |
|
lock.readLock().unlock(); |
555 |
|
lock.writeLock().unlock(); |
556 |
< |
} |
556 |
> |
} |
557 |
|
|
558 |
|
/** |
559 |
|
* Fair Read lock succeeds if write locked by current thread even if |
560 |
|
* other threads are waiting for readlock |
561 |
|
*/ |
562 |
< |
public void testReadHoldingWriteLockFair2() { |
562 |
> |
public void testReadHoldingWriteLockFair2() { |
563 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
564 |
|
lock.writeLock().lock(); |
565 |
|
Thread t1 = new Thread(new Runnable() { |
588 |
|
t2.join(MEDIUM_DELAY_MS); |
589 |
|
assertTrue(!t1.isAlive()); |
590 |
|
assertTrue(!t2.isAlive()); |
591 |
< |
|
592 |
< |
} catch(Exception e){ |
591 |
> |
|
592 |
> |
} catch (Exception e){ |
593 |
|
unexpectedException(); |
594 |
|
} |
595 |
< |
} |
595 |
> |
} |
596 |
|
|
597 |
|
|
598 |
|
/** |
599 |
|
* Fair Read lock succeeds if write locked by current thread even if |
600 |
|
* other threads are waiting for writelock |
601 |
|
*/ |
602 |
< |
public void testReadHoldingWriteLockFair3() { |
602 |
> |
public void testReadHoldingWriteLockFair3() { |
603 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
604 |
|
lock.writeLock().lock(); |
605 |
|
Thread t1 = new Thread(new Runnable() { |
628 |
|
t2.join(MEDIUM_DELAY_MS); |
629 |
|
assertTrue(!t1.isAlive()); |
630 |
|
assertTrue(!t2.isAlive()); |
631 |
< |
|
632 |
< |
} catch(Exception e){ |
631 |
> |
|
632 |
> |
} catch (Exception e){ |
633 |
|
unexpectedException(); |
634 |
|
} |
635 |
< |
} |
635 |
> |
} |
636 |
|
|
637 |
|
|
638 |
|
/** |
639 |
|
* Fair Write lock succeeds if write locked by current thread even if |
640 |
|
* other threads are waiting for writelock |
641 |
|
*/ |
642 |
< |
public void testWriteHoldingWriteLockFair4() { |
642 |
> |
public void testWriteHoldingWriteLockFair4() { |
643 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
644 |
|
lock.writeLock().lock(); |
645 |
|
Thread t1 = new Thread(new Runnable() { |
671 |
|
t2.join(MEDIUM_DELAY_MS); |
672 |
|
assertTrue(!t1.isAlive()); |
673 |
|
assertTrue(!t2.isAlive()); |
674 |
< |
|
675 |
< |
} catch(Exception e){ |
674 |
> |
|
675 |
> |
} catch (Exception e){ |
676 |
|
unexpectedException(); |
677 |
|
} |
678 |
< |
} |
678 |
> |
} |
679 |
|
|
680 |
|
|
681 |
|
/** |
682 |
|
* Read tryLock succeeds if readlocked but not writelocked |
683 |
|
*/ |
684 |
< |
public void testTryLockWhenReadLocked() { |
684 |
> |
public void testTryLockWhenReadLocked() { |
685 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
686 |
|
lock.readLock().lock(); |
687 |
|
Thread t = new Thread(new Runnable() { |
694 |
|
t.start(); |
695 |
|
t.join(); |
696 |
|
lock.readLock().unlock(); |
697 |
< |
} catch(Exception e){ |
697 |
> |
} catch (Exception e){ |
698 |
|
unexpectedException(); |
699 |
|
} |
700 |
< |
} |
700 |
> |
} |
701 |
> |
|
702 |
|
|
679 |
– |
|
703 |
|
|
704 |
|
/** |
705 |
|
* write tryLock fails when readlocked |
706 |
|
*/ |
707 |
< |
public void testWriteTryLockWhenReadLocked() { |
707 |
> |
public void testWriteTryLockWhenReadLocked() { |
708 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
709 |
|
lock.readLock().lock(); |
710 |
|
Thread t = new Thread(new Runnable() { |
716 |
|
t.start(); |
717 |
|
t.join(); |
718 |
|
lock.readLock().unlock(); |
719 |
< |
} catch(Exception e){ |
719 |
> |
} catch (Exception e){ |
720 |
|
unexpectedException(); |
721 |
|
} |
722 |
< |
} |
722 |
> |
} |
723 |
> |
|
724 |
> |
|
725 |
> |
/** |
726 |
> |
* Fair Read tryLock succeeds if readlocked but not writelocked |
727 |
> |
*/ |
728 |
> |
public void testTryLockWhenReadLockedFair() { |
729 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
730 |
> |
lock.readLock().lock(); |
731 |
> |
Thread t = new Thread(new Runnable() { |
732 |
> |
public void run() { |
733 |
> |
threadAssertTrue(lock.readLock().tryLock()); |
734 |
> |
lock.readLock().unlock(); |
735 |
> |
} |
736 |
> |
}); |
737 |
> |
try { |
738 |
> |
t.start(); |
739 |
> |
t.join(); |
740 |
> |
lock.readLock().unlock(); |
741 |
> |
} catch (Exception e){ |
742 |
> |
unexpectedException(); |
743 |
> |
} |
744 |
> |
} |
745 |
> |
|
746 |
> |
|
747 |
> |
|
748 |
> |
/** |
749 |
> |
* Fair write tryLock fails when readlocked |
750 |
> |
*/ |
751 |
> |
public void testWriteTryLockWhenReadLockedFair() { |
752 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
753 |
> |
lock.readLock().lock(); |
754 |
> |
Thread t = new Thread(new Runnable() { |
755 |
> |
public void run() { |
756 |
> |
threadAssertFalse(lock.writeLock().tryLock()); |
757 |
> |
} |
758 |
> |
}); |
759 |
> |
try { |
760 |
> |
t.start(); |
761 |
> |
t.join(); |
762 |
> |
lock.readLock().unlock(); |
763 |
> |
} catch (Exception e){ |
764 |
> |
unexpectedException(); |
765 |
> |
} |
766 |
> |
} |
767 |
> |
|
768 |
|
|
701 |
– |
|
769 |
|
|
770 |
|
/** |
771 |
|
* write timed tryLock times out if locked |
772 |
|
*/ |
773 |
< |
public void testWriteTryLock_Timeout() { |
773 |
> |
public void testWriteTryLock_Timeout() { |
774 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
775 |
|
lock.writeLock().lock(); |
776 |
|
Thread t = new Thread(new Runnable() { |
786 |
|
t.start(); |
787 |
|
t.join(); |
788 |
|
lock.writeLock().unlock(); |
789 |
< |
} catch(Exception e){ |
789 |
> |
} catch (Exception e){ |
790 |
|
unexpectedException(); |
791 |
|
} |
792 |
< |
} |
792 |
> |
} |
793 |
|
|
794 |
|
/** |
795 |
|
* read timed tryLock times out if write-locked |
796 |
|
*/ |
797 |
< |
public void testReadTryLock_Timeout() { |
797 |
> |
public void testReadTryLock_Timeout() { |
798 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
799 |
|
lock.writeLock().lock(); |
800 |
|
Thread t = new Thread(new Runnable() { |
810 |
|
t.start(); |
811 |
|
t.join(); |
812 |
|
lock.writeLock().unlock(); |
813 |
< |
} catch(Exception e){ |
813 |
> |
} catch (Exception e){ |
814 |
|
unexpectedException(); |
815 |
|
} |
816 |
< |
} |
816 |
> |
} |
817 |
|
|
818 |
|
|
819 |
|
/** |
823 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
824 |
|
try { |
825 |
|
lock.writeLock().lockInterruptibly(); |
826 |
< |
} catch(Exception e) { |
826 |
> |
} catch (Exception e) { |
827 |
|
unexpectedException(); |
828 |
|
} |
829 |
< |
Thread t = new Thread(new Runnable() { |
829 |
> |
Thread t = new Thread(new Runnable() { |
830 |
|
public void run() { |
831 |
|
try { |
832 |
|
lock.writeLock().lockInterruptibly(); |
833 |
|
threadShouldThrow(); |
834 |
|
} |
835 |
< |
catch(InterruptedException success) { |
835 |
> |
catch (InterruptedException success) { |
836 |
|
} |
837 |
|
} |
838 |
|
}); |
839 |
|
try { |
840 |
|
t.start(); |
841 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
842 |
|
t.interrupt(); |
843 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
844 |
|
t.join(); |
845 |
|
lock.writeLock().unlock(); |
846 |
< |
} catch(Exception e){ |
846 |
> |
} catch (Exception e){ |
847 |
|
unexpectedException(); |
848 |
|
} |
849 |
|
} |
855 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
856 |
|
try { |
857 |
|
lock.writeLock().lockInterruptibly(); |
858 |
< |
} catch(Exception e) { |
858 |
> |
} catch (Exception e) { |
859 |
|
unexpectedException(); |
860 |
|
} |
861 |
< |
Thread t = new Thread(new Runnable() { |
861 |
> |
Thread t = new Thread(new Runnable() { |
862 |
|
public void run() { |
863 |
|
try { |
864 |
|
lock.readLock().lockInterruptibly(); |
865 |
|
threadShouldThrow(); |
866 |
|
} |
867 |
< |
catch(InterruptedException success) { |
867 |
> |
catch (InterruptedException success) { |
868 |
|
} |
869 |
|
} |
870 |
|
}); |
871 |
|
try { |
872 |
|
t.start(); |
873 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
874 |
|
t.interrupt(); |
875 |
|
t.join(); |
876 |
|
lock.writeLock().unlock(); |
877 |
< |
} catch(Exception e){ |
877 |
> |
} catch (Exception e){ |
878 |
|
unexpectedException(); |
879 |
|
} |
880 |
|
} |
883 |
|
* Calling await without holding lock throws IllegalMonitorStateException |
884 |
|
*/ |
885 |
|
public void testAwait_IllegalMonitor() { |
886 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
886 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
887 |
|
final Condition c = lock.writeLock().newCondition(); |
888 |
|
try { |
889 |
|
c.await(); |
900 |
|
* Calling signal without holding lock throws IllegalMonitorStateException |
901 |
|
*/ |
902 |
|
public void testSignal_IllegalMonitor() { |
903 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
903 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
904 |
|
final Condition c = lock.writeLock().newCondition(); |
905 |
|
try { |
906 |
|
c.signal(); |
917 |
|
* awaitNanos without a signal times out |
918 |
|
*/ |
919 |
|
public void testAwaitNanos_Timeout() { |
920 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
920 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
921 |
|
final Condition c = lock.writeLock().newCondition(); |
922 |
|
try { |
923 |
|
lock.writeLock().lock(); |
935 |
|
* timed await without a signal times out |
936 |
|
*/ |
937 |
|
public void testAwait_Timeout() { |
938 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
938 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
939 |
|
final Condition c = lock.writeLock().newCondition(); |
940 |
|
try { |
941 |
|
lock.writeLock().lock(); |
950 |
|
* awaitUntil without a signal times out |
951 |
|
*/ |
952 |
|
public void testAwaitUntil_Timeout() { |
953 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
953 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
954 |
|
final Condition c = lock.writeLock().newCondition(); |
955 |
|
try { |
956 |
|
lock.writeLock().lock(); |
966 |
|
* await returns when signalled |
967 |
|
*/ |
968 |
|
public void testAwait() { |
969 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
969 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
970 |
|
final Condition c = lock.writeLock().newCondition(); |
971 |
< |
Thread t = new Thread(new Runnable() { |
971 |
> |
Thread t = new Thread(new Runnable() { |
972 |
|
public void run() { |
973 |
|
try { |
974 |
|
lock.writeLock().lock(); |
975 |
|
c.await(); |
976 |
|
lock.writeLock().unlock(); |
977 |
|
} |
978 |
< |
catch(InterruptedException e) { |
978 |
> |
catch (InterruptedException e) { |
979 |
|
threadUnexpectedException(); |
980 |
|
} |
981 |
|
} |
999 |
|
class UninterruptableThread extends Thread { |
1000 |
|
private Lock lock; |
1001 |
|
private Condition c; |
1002 |
< |
|
1002 |
> |
|
1003 |
|
public volatile boolean canAwake = false; |
1004 |
|
public volatile boolean interrupted = false; |
1005 |
|
public volatile boolean lockStarted = false; |
1006 |
< |
|
1006 |
> |
|
1007 |
|
public UninterruptableThread(Lock lock, Condition c) { |
1008 |
|
this.lock = lock; |
1009 |
|
this.c = c; |
1010 |
|
} |
1011 |
< |
|
1011 |
> |
|
1012 |
|
public synchronized void run() { |
1013 |
|
lock.lock(); |
1014 |
|
lockStarted = true; |
1015 |
< |
|
1015 |
> |
|
1016 |
|
while (!canAwake) { |
1017 |
|
c.awaitUninterruptibly(); |
1018 |
|
} |
1019 |
< |
|
1019 |
> |
|
1020 |
|
interrupted = isInterrupted(); |
1021 |
|
lock.unlock(); |
1022 |
|
} |
1058 |
|
* await is interruptible |
1059 |
|
*/ |
1060 |
|
public void testAwait_Interrupt() { |
1061 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1061 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1062 |
|
final Condition c = lock.writeLock().newCondition(); |
1063 |
< |
Thread t = new Thread(new Runnable() { |
1063 |
> |
Thread t = new Thread(new Runnable() { |
1064 |
|
public void run() { |
1065 |
|
try { |
1066 |
|
lock.writeLock().lock(); |
1068 |
|
lock.writeLock().unlock(); |
1069 |
|
threadShouldThrow(); |
1070 |
|
} |
1071 |
< |
catch(InterruptedException success) { |
1071 |
> |
catch (InterruptedException success) { |
1072 |
|
} |
1073 |
|
} |
1074 |
|
}); |
1089 |
|
* awaitNanos is interruptible |
1090 |
|
*/ |
1091 |
|
public void testAwaitNanos_Interrupt() { |
1092 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1092 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1093 |
|
final Condition c = lock.writeLock().newCondition(); |
1094 |
< |
Thread t = new Thread(new Runnable() { |
1094 |
> |
Thread t = new Thread(new Runnable() { |
1095 |
|
public void run() { |
1096 |
|
try { |
1097 |
|
lock.writeLock().lock(); |
1099 |
|
lock.writeLock().unlock(); |
1100 |
|
threadShouldThrow(); |
1101 |
|
} |
1102 |
< |
catch(InterruptedException success) { |
1102 |
> |
catch (InterruptedException success) { |
1103 |
|
} |
1104 |
|
} |
1105 |
|
}); |
1120 |
|
* awaitUntil is interruptible |
1121 |
|
*/ |
1122 |
|
public void testAwaitUntil_Interrupt() { |
1123 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1123 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1124 |
|
final Condition c = lock.writeLock().newCondition(); |
1125 |
< |
Thread t = new Thread(new Runnable() { |
1125 |
> |
Thread t = new Thread(new Runnable() { |
1126 |
|
public void run() { |
1127 |
|
try { |
1128 |
|
lock.writeLock().lock(); |
1131 |
|
lock.writeLock().unlock(); |
1132 |
|
threadShouldThrow(); |
1133 |
|
} |
1134 |
< |
catch(InterruptedException success) { |
1134 |
> |
catch (InterruptedException success) { |
1135 |
|
} |
1136 |
|
} |
1137 |
|
}); |
1152 |
|
* signalAll wakes up all threads |
1153 |
|
*/ |
1154 |
|
public void testSignalAll() { |
1155 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1155 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1156 |
|
final Condition c = lock.writeLock().newCondition(); |
1157 |
< |
Thread t1 = new Thread(new Runnable() { |
1157 |
> |
Thread t1 = new Thread(new Runnable() { |
1158 |
|
public void run() { |
1159 |
|
try { |
1160 |
|
lock.writeLock().lock(); |
1161 |
|
c.await(); |
1162 |
|
lock.writeLock().unlock(); |
1163 |
|
} |
1164 |
< |
catch(InterruptedException e) { |
1164 |
> |
catch (InterruptedException e) { |
1165 |
|
threadUnexpectedException(); |
1166 |
|
} |
1167 |
|
} |
1168 |
|
}); |
1169 |
|
|
1170 |
< |
Thread t2 = new Thread(new Runnable() { |
1170 |
> |
Thread t2 = new Thread(new Runnable() { |
1171 |
|
public void run() { |
1172 |
|
try { |
1173 |
|
lock.writeLock().lock(); |
1174 |
|
c.await(); |
1175 |
|
lock.writeLock().unlock(); |
1176 |
|
} |
1177 |
< |
catch(InterruptedException e) { |
1177 |
> |
catch (InterruptedException e) { |
1178 |
|
threadUnexpectedException(); |
1179 |
|
} |
1180 |
|
} |
1216 |
|
ReentrantReadWriteLock r = (ReentrantReadWriteLock) in.readObject(); |
1217 |
|
r.readLock().lock(); |
1218 |
|
r.readLock().unlock(); |
1219 |
< |
} catch(Exception e){ |
1219 |
> |
} catch (Exception e){ |
1220 |
|
e.printStackTrace(); |
1221 |
|
unexpectedException(); |
1222 |
|
} |
1225 |
|
/** |
1226 |
|
* hasQueuedThreads reports whether there are waiting threads |
1227 |
|
*/ |
1228 |
< |
public void testhasQueuedThreads() { |
1228 |
> |
public void testhasQueuedThreads() { |
1229 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1230 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
1231 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
1246 |
|
assertFalse(lock.hasQueuedThreads()); |
1247 |
|
t1.join(); |
1248 |
|
t2.join(); |
1249 |
< |
} catch(Exception e){ |
1249 |
> |
} catch (Exception e){ |
1250 |
|
unexpectedException(); |
1251 |
|
} |
1252 |
< |
} |
1252 |
> |
} |
1253 |
|
|
1254 |
|
/** |
1255 |
|
* hasQueuedThread(null) throws NPE |
1256 |
|
*/ |
1257 |
< |
public void testHasQueuedThreadNPE() { |
1257 |
> |
public void testHasQueuedThreadNPE() { |
1258 |
|
final ReentrantReadWriteLock sync = new ReentrantReadWriteLock(); |
1259 |
|
try { |
1260 |
|
sync.hasQueuedThread(null); |
1266 |
|
/** |
1267 |
|
* hasQueuedThread reports whether a thread is queued. |
1268 |
|
*/ |
1269 |
< |
public void testHasQueuedThread() { |
1269 |
> |
public void testHasQueuedThread() { |
1270 |
|
final ReentrantReadWriteLock sync = new ReentrantReadWriteLock(); |
1271 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(sync)); |
1272 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(sync)); |
1292 |
|
assertFalse(sync.hasQueuedThread(t2)); |
1293 |
|
t1.join(); |
1294 |
|
t2.join(); |
1295 |
< |
} catch(Exception e){ |
1295 |
> |
} catch (Exception e){ |
1296 |
|
unexpectedException(); |
1297 |
|
} |
1298 |
< |
} |
1298 |
> |
} |
1299 |
|
|
1300 |
|
|
1301 |
|
/** |
1302 |
|
* getQueueLength reports number of waiting threads |
1303 |
|
*/ |
1304 |
< |
public void testGetQueueLength() { |
1304 |
> |
public void testGetQueueLength() { |
1305 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1306 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
1307 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
1322 |
|
assertEquals(0, lock.getQueueLength()); |
1323 |
|
t1.join(); |
1324 |
|
t2.join(); |
1325 |
< |
} catch(Exception e){ |
1325 |
> |
} catch (Exception e){ |
1326 |
|
unexpectedException(); |
1327 |
|
} |
1328 |
< |
} |
1328 |
> |
} |
1329 |
|
|
1330 |
|
/** |
1331 |
|
* getQueuedThreads includes waiting threads |
1332 |
|
*/ |
1333 |
< |
public void testGetQueuedThreads() { |
1333 |
> |
public void testGetQueuedThreads() { |
1334 |
|
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1335 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
1336 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
1354 |
|
assertTrue(lock.getQueuedThreads().isEmpty()); |
1355 |
|
t1.join(); |
1356 |
|
t2.join(); |
1357 |
< |
} catch(Exception e){ |
1357 |
> |
} catch (Exception e){ |
1358 |
|
unexpectedException(); |
1359 |
|
} |
1360 |
< |
} |
1360 |
> |
} |
1361 |
|
|
1362 |
|
/** |
1363 |
|
* hasWaiters throws NPE if null |
1470 |
|
* getWaitingThreads throws IAE if not owned |
1471 |
|
*/ |
1472 |
|
public void testGetWaitingThreadsIAE() { |
1473 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1473 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1474 |
|
final Condition c = (lock.writeLock().newCondition()); |
1475 |
< |
final PublicReentrantReadWriteLock lock2 = new PublicReentrantReadWriteLock(); |
1475 |
> |
final PublicReentrantReadWriteLock lock2 = new PublicReentrantReadWriteLock(); |
1476 |
|
try { |
1477 |
|
lock2.getWaitingThreads(c); |
1478 |
|
shouldThrow(); |
1486 |
|
* getWaitingThreads throws IMSE if not locked |
1487 |
|
*/ |
1488 |
|
public void testGetWaitingThreadsIMSE() { |
1489 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1489 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1490 |
|
final Condition c = (lock.writeLock().newCondition()); |
1491 |
|
try { |
1492 |
|
lock.getWaitingThreads(c); |
1504 |
|
public void testHasWaiters() { |
1505 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1506 |
|
final Condition c = (lock.writeLock().newCondition()); |
1507 |
< |
Thread t = new Thread(new Runnable() { |
1507 |
> |
Thread t = new Thread(new Runnable() { |
1508 |
|
public void run() { |
1509 |
|
try { |
1510 |
|
lock.writeLock().lock(); |
1513 |
|
c.await(); |
1514 |
|
lock.writeLock().unlock(); |
1515 |
|
} |
1516 |
< |
catch(InterruptedException e) { |
1516 |
> |
catch (InterruptedException e) { |
1517 |
|
threadUnexpectedException(); |
1518 |
|
} |
1519 |
|
} |
1546 |
|
public void testGetWaitQueueLength() { |
1547 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1548 |
|
final Condition c = (lock.writeLock().newCondition()); |
1549 |
< |
Thread t = new Thread(new Runnable() { |
1549 |
> |
Thread t = new Thread(new Runnable() { |
1550 |
|
public void run() { |
1551 |
|
try { |
1552 |
|
lock.writeLock().lock(); |
1555 |
|
c.await(); |
1556 |
|
lock.writeLock().unlock(); |
1557 |
|
} |
1558 |
< |
catch(InterruptedException e) { |
1558 |
> |
catch (InterruptedException e) { |
1559 |
|
threadUnexpectedException(); |
1560 |
|
} |
1561 |
|
} |
1587 |
|
* getWaitingThreads returns only and all waiting threads |
1588 |
|
*/ |
1589 |
|
public void testGetWaitingThreads() { |
1590 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1590 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1591 |
|
final Condition c = lock.writeLock().newCondition(); |
1592 |
< |
Thread t1 = new Thread(new Runnable() { |
1592 |
> |
Thread t1 = new Thread(new Runnable() { |
1593 |
|
public void run() { |
1594 |
|
try { |
1595 |
|
lock.writeLock().lock(); |
1597 |
|
c.await(); |
1598 |
|
lock.writeLock().unlock(); |
1599 |
|
} |
1600 |
< |
catch(InterruptedException e) { |
1600 |
> |
catch (InterruptedException e) { |
1601 |
|
threadUnexpectedException(); |
1602 |
|
} |
1603 |
|
} |
1604 |
|
}); |
1605 |
|
|
1606 |
< |
Thread t2 = new Thread(new Runnable() { |
1606 |
> |
Thread t2 = new Thread(new Runnable() { |
1607 |
|
public void run() { |
1608 |
|
try { |
1609 |
|
lock.writeLock().lock(); |
1611 |
|
c.await(); |
1612 |
|
lock.writeLock().unlock(); |
1613 |
|
} |
1614 |
< |
catch(InterruptedException e) { |
1614 |
> |
catch (InterruptedException e) { |
1615 |
|
threadUnexpectedException(); |
1616 |
|
} |
1617 |
|
} |