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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/licenses/publicdomain |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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*/ |
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import junit.framework.*; |
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import java.util.concurrent.locks.*; |
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import java.util.concurrent.*; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import java.io.*; |
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import java.util.*; |
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public class ReentrantReadWriteLockTest extends JSR166TestCase { |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run (suite()); |
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junit.textui.TestRunner.run(suite()); |
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} |
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public static Test suite() { |
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return new TestSuite(ReentrantReadWriteLockTest.class); |
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return new TestSuite(ReentrantReadWriteLockTest.class); |
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} |
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/** |
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} |
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/** |
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* Releases lock, checking that it had a hold count of 1. |
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*/ |
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void releaseLock(ReentrantReadWriteLock.WriteLock lock) { |
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assertTrue(lock.isHeldByCurrentThread()); |
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lock.unlock(); |
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assertFalse(lock.isHeldByCurrentThread()); |
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} |
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|
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/** |
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* Constructor sets given fairness, and is in unlocked state |
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*/ |
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public void testConstructor() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
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assertFalse(rl.isFair()); |
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assertFalse(rl.isWriteLocked()); |
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assertEquals(0, rl.getReadLockCount()); |
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ReentrantReadWriteLock r2 = new ReentrantReadWriteLock(true); |
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ReentrantReadWriteLock r2 = new ReentrantReadWriteLock(true); |
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assertTrue(r2.isFair()); |
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assertFalse(r2.isWriteLocked()); |
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assertEquals(0, r2.getReadLockCount()); |
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ReentrantReadWriteLock r3 = new ReentrantReadWriteLock(false); |
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ReentrantReadWriteLock r3 = new ReentrantReadWriteLock(false); |
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assertFalse(r3.isFair()); |
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assertFalse(r3.isWriteLocked()); |
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assertEquals(0, r3.getReadLockCount()); |
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* write-locking and read-locking an unlocked lock succeed |
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*/ |
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public void testLock() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
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rl.writeLock().lock(); |
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assertTrue(rl.isWriteLocked()); |
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assertTrue(rl.isWriteLockedByCurrentThread()); |
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* locking an unlocked fair lock succeeds |
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*/ |
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public void testFairLock() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(true); |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(true); |
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rl.writeLock().lock(); |
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assertTrue(rl.isWriteLocked()); |
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assertTrue(rl.isWriteLockedByCurrentThread()); |
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* getWriteHoldCount returns number of recursive holds |
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*/ |
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public void testGetWriteHoldCount() { |
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ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
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for (int i = 1; i <= SIZE; i++) { |
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lock.writeLock().lock(); |
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assertEquals(i,lock.getWriteHoldCount()); |
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} |
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for (int i = SIZE; i > 0; i--) { |
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lock.writeLock().unlock(); |
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assertEquals(i-1,lock.getWriteHoldCount()); |
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} |
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ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
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for (int i = 1; i <= SIZE; i++) { |
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lock.writeLock().lock(); |
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assertEquals(i,lock.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() { |
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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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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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* getReadHoldCount returns number of recursive holds |
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*/ |
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public void testGetReadHoldCount() { |
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ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
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for (int i = 1; i <= SIZE; i++) { |
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lock.readLock().lock(); |
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assertEquals(i,lock.getReadHoldCount()); |
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} |
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for (int i = SIZE; i > 0; i--) { |
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lock.readLock().unlock(); |
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assertEquals(i-1,lock.getReadHoldCount()); |
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} |
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ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
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for (int i = 1; i <= SIZE; i++) { |
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lock.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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* write-unlocking an unlocked lock throws IllegalMonitorStateException |
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*/ |
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public void testUnlock_IllegalMonitorStateException() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
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try { |
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rl.writeLock().unlock(); |
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shouldThrow(); |
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} catch (IllegalMonitorStateException success) {} |
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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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} |
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|
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* write-lockInterruptibly is interruptible |
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*/ |
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public void testWriteLockInterruptibly_Interrupted() throws Exception { |
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final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
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Thread t = new Thread(new Runnable() { |
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public void run() { |
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try { |
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lock.writeLock().lockInterruptibly(); |
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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) {} |
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} |
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}); |
202 |
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|
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final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
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lock.writeLock().lock(); |
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t.start(); |
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Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
204 |
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public void realRun() throws InterruptedException { |
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lock.writeLock().lockInterruptibly(); |
206 |
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}}); |
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|
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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(); |
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t.join(); |
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releaseLock(lock.writeLock()); |
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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_Interrupted() throws InterruptedException { |
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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() { |
222 |
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try { |
223 |
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lock.writeLock().tryLock(1000,TimeUnit.MILLISECONDS); |
222 |
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} catch (InterruptedException success) {} |
223 |
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} |
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}); |
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final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
219 |
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lock.writeLock().lock(); |
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Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
221 |
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public void realRun() throws InterruptedException { |
222 |
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lock.writeLock().tryLock(SMALL_DELAY_MS, MILLISECONDS); |
223 |
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}}); |
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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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lock.writeLock().unlock(); |
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t.join(); |
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releaseLock(lock.writeLock()); |
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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_Interrupted() throws InterruptedException { |
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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(); |
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} catch (InterruptedException success) {} |
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} |
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}); |
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final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
236 |
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lock.writeLock().lock(); |
237 |
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Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
238 |
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public void realRun() throws InterruptedException { |
239 |
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lock.readLock().lockInterruptibly(); |
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}}); |
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|
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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(); |
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t.join(); |
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releaseLock(lock.writeLock()); |
246 |
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} |
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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_Interrupted() throws InterruptedException { |
252 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
253 |
< |
lock.writeLock().lock(); |
254 |
< |
Thread t = new Thread(new Runnable() { |
255 |
< |
public void run() { |
256 |
< |
try { |
257 |
< |
lock.readLock().tryLock(1000,TimeUnit.MILLISECONDS); |
264 |
< |
threadShouldThrow(); |
265 |
< |
} catch (InterruptedException success) {} |
266 |
< |
} |
267 |
< |
}); |
252 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
253 |
> |
lock.writeLock().lock(); |
254 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
255 |
> |
public void realRun() throws InterruptedException { |
256 |
> |
lock.readLock().tryLock(LONG_DELAY_MS, MILLISECONDS); |
257 |
> |
}}); |
258 |
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|
259 |
< |
t.start(); |
259 |
> |
Thread.sleep(SHORT_DELAY_MS); |
260 |
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t.interrupt(); |
261 |
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t.join(); |
262 |
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} |
266 |
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* write-tryLock fails if locked |
267 |
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*/ |
268 |
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public void testWriteTryLockWhenLocked() throws InterruptedException { |
269 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
270 |
< |
lock.writeLock().lock(); |
271 |
< |
Thread t = new Thread(new Runnable() { |
272 |
< |
public void run() { |
273 |
< |
threadAssertFalse(lock.writeLock().tryLock()); |
274 |
< |
} |
285 |
< |
}); |
269 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
270 |
> |
lock.writeLock().lock(); |
271 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
272 |
> |
public void realRun() { |
273 |
> |
assertFalse(lock.writeLock().tryLock()); |
274 |
> |
}}); |
275 |
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|
287 |
– |
t.start(); |
276 |
|
t.join(); |
277 |
|
lock.writeLock().unlock(); |
278 |
|
} |
281 |
|
* read-tryLock fails if locked |
282 |
|
*/ |
283 |
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public void testReadTryLockWhenLocked() throws InterruptedException { |
284 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
285 |
< |
lock.writeLock().lock(); |
286 |
< |
Thread t = new Thread(new Runnable() { |
287 |
< |
public void run() { |
288 |
< |
threadAssertFalse(lock.readLock().tryLock()); |
289 |
< |
} |
302 |
< |
}); |
284 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
285 |
> |
lock.writeLock().lock(); |
286 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
287 |
> |
public void realRun() { |
288 |
> |
assertFalse(lock.readLock().tryLock()); |
289 |
> |
}}); |
290 |
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|
304 |
– |
t.start(); |
291 |
|
t.join(); |
292 |
|
lock.writeLock().unlock(); |
293 |
|
} |
296 |
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* Multiple threads can hold a read lock when not write-locked |
297 |
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*/ |
298 |
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public void testMultipleReadLocks() throws InterruptedException { |
299 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
300 |
< |
lock.readLock().lock(); |
301 |
< |
Thread t = new Thread(new Runnable() { |
302 |
< |
public void run() { |
303 |
< |
threadAssertTrue(lock.readLock().tryLock()); |
304 |
< |
lock.readLock().unlock(); |
305 |
< |
} |
320 |
< |
}); |
299 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
300 |
> |
lock.readLock().lock(); |
301 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
302 |
> |
public void realRun() { |
303 |
> |
assertTrue(lock.readLock().tryLock()); |
304 |
> |
lock.readLock().unlock(); |
305 |
> |
}}); |
306 |
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|
322 |
– |
t.start(); |
307 |
|
t.join(); |
308 |
|
lock.readLock().unlock(); |
309 |
|
} |
312 |
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* A writelock succeeds after reading threads unlock |
313 |
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*/ |
314 |
|
public void testWriteAfterMultipleReadLocks() throws InterruptedException { |
315 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
316 |
< |
lock.readLock().lock(); |
317 |
< |
Thread t1 = new Thread(new Runnable() { |
318 |
< |
public void run() { |
319 |
< |
lock.readLock().lock(); |
320 |
< |
lock.readLock().unlock(); |
321 |
< |
} |
322 |
< |
}); |
323 |
< |
Thread t2 = new Thread(new Runnable() { |
324 |
< |
public void run() { |
325 |
< |
lock.writeLock().lock(); |
326 |
< |
lock.writeLock().unlock(); |
343 |
< |
} |
344 |
< |
}); |
315 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
316 |
> |
lock.readLock().lock(); |
317 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
318 |
> |
public void realRun() { |
319 |
> |
lock.readLock().lock(); |
320 |
> |
lock.readLock().unlock(); |
321 |
> |
}}); |
322 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
323 |
> |
public void realRun() { |
324 |
> |
lock.writeLock().lock(); |
325 |
> |
lock.writeLock().unlock(); |
326 |
> |
}}); |
327 |
|
|
346 |
– |
t1.start(); |
347 |
– |
t2.start(); |
328 |
|
Thread.sleep(SHORT_DELAY_MS); |
329 |
|
lock.readLock().unlock(); |
330 |
|
t1.join(MEDIUM_DELAY_MS); |
337 |
|
* Readlocks succeed after a writing thread unlocks |
338 |
|
*/ |
339 |
|
public void testReadAfterWriteLock() throws InterruptedException { |
340 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
341 |
< |
lock.writeLock().lock(); |
342 |
< |
Thread t1 = new Thread(new Runnable() { |
343 |
< |
public void run() { |
344 |
< |
lock.readLock().lock(); |
345 |
< |
lock.readLock().unlock(); |
346 |
< |
} |
347 |
< |
}); |
348 |
< |
Thread t2 = new Thread(new Runnable() { |
349 |
< |
public void run() { |
350 |
< |
lock.readLock().lock(); |
351 |
< |
lock.readLock().unlock(); |
372 |
< |
} |
373 |
< |
}); |
340 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
341 |
> |
lock.writeLock().lock(); |
342 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
343 |
> |
public void realRun() { |
344 |
> |
lock.readLock().lock(); |
345 |
> |
lock.readLock().unlock(); |
346 |
> |
}}); |
347 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
348 |
> |
public void realRun() { |
349 |
> |
lock.readLock().lock(); |
350 |
> |
lock.readLock().unlock(); |
351 |
> |
}}); |
352 |
|
|
375 |
– |
t1.start(); |
376 |
– |
t2.start(); |
353 |
|
Thread.sleep(SHORT_DELAY_MS); |
354 |
|
lock.writeLock().unlock(); |
355 |
|
t1.join(MEDIUM_DELAY_MS); |
362 |
|
* Read trylock succeeds if write locked by current thread |
363 |
|
*/ |
364 |
|
public void testReadHoldingWriteLock() { |
365 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
366 |
< |
lock.writeLock().lock(); |
365 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
366 |
> |
lock.writeLock().lock(); |
367 |
|
assertTrue(lock.readLock().tryLock()); |
368 |
|
lock.readLock().unlock(); |
369 |
|
lock.writeLock().unlock(); |
374 |
|
* other threads are waiting for readlock |
375 |
|
*/ |
376 |
|
public void testReadHoldingWriteLock2() throws InterruptedException { |
377 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
378 |
< |
lock.writeLock().lock(); |
379 |
< |
Thread t1 = new Thread(new Runnable() { |
380 |
< |
public void run() { |
381 |
< |
lock.readLock().lock(); |
382 |
< |
lock.readLock().unlock(); |
383 |
< |
} |
384 |
< |
}); |
385 |
< |
Thread t2 = new Thread(new Runnable() { |
386 |
< |
public void run() { |
387 |
< |
lock.readLock().lock(); |
388 |
< |
lock.readLock().unlock(); |
413 |
< |
} |
414 |
< |
}); |
377 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
378 |
> |
lock.writeLock().lock(); |
379 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
380 |
> |
public void realRun() { |
381 |
> |
lock.readLock().lock(); |
382 |
> |
lock.readLock().unlock(); |
383 |
> |
}}); |
384 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
385 |
> |
public void realRun() { |
386 |
> |
lock.readLock().lock(); |
387 |
> |
lock.readLock().unlock(); |
388 |
> |
}}); |
389 |
|
|
416 |
– |
t1.start(); |
417 |
– |
t2.start(); |
390 |
|
lock.readLock().lock(); |
391 |
|
lock.readLock().unlock(); |
392 |
|
Thread.sleep(SHORT_DELAY_MS); |
400 |
|
} |
401 |
|
|
402 |
|
/** |
403 |
< |
* Read lock succeeds if write locked by current thread even if |
403 |
> |
* Read lock succeeds if write locked by current thread even if |
404 |
|
* other threads are waiting for writelock |
405 |
|
*/ |
406 |
|
public void testReadHoldingWriteLock3() throws InterruptedException { |
407 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
408 |
< |
lock.writeLock().lock(); |
409 |
< |
Thread t1 = new Thread(new Runnable() { |
410 |
< |
public void run() { |
411 |
< |
lock.writeLock().lock(); |
412 |
< |
lock.writeLock().unlock(); |
413 |
< |
} |
414 |
< |
}); |
415 |
< |
Thread t2 = new Thread(new Runnable() { |
416 |
< |
public void run() { |
417 |
< |
lock.writeLock().lock(); |
418 |
< |
lock.writeLock().unlock(); |
447 |
< |
} |
448 |
< |
}); |
407 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
408 |
> |
lock.writeLock().lock(); |
409 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
410 |
> |
public void realRun() { |
411 |
> |
lock.writeLock().lock(); |
412 |
> |
lock.writeLock().unlock(); |
413 |
> |
}}); |
414 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
415 |
> |
public void realRun() { |
416 |
> |
lock.writeLock().lock(); |
417 |
> |
lock.writeLock().unlock(); |
418 |
> |
}}); |
419 |
|
|
450 |
– |
t1.start(); |
451 |
– |
t2.start(); |
420 |
|
lock.readLock().lock(); |
421 |
|
lock.readLock().unlock(); |
422 |
|
Thread.sleep(SHORT_DELAY_MS); |
431 |
|
|
432 |
|
|
433 |
|
/** |
434 |
< |
* Write lock succeeds if write locked by current thread even if |
434 |
> |
* Write lock succeeds if write locked by current thread even if |
435 |
|
* other threads are waiting for writelock |
436 |
|
*/ |
437 |
|
public void testWriteHoldingWriteLock4() throws InterruptedException { |
438 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
439 |
< |
lock.writeLock().lock(); |
440 |
< |
Thread t1 = new Thread(new Runnable() { |
441 |
< |
public void run() { |
442 |
< |
lock.writeLock().lock(); |
443 |
< |
lock.writeLock().unlock(); |
444 |
< |
} |
445 |
< |
}); |
446 |
< |
Thread t2 = new Thread(new Runnable() { |
447 |
< |
public void run() { |
448 |
< |
lock.writeLock().lock(); |
449 |
< |
lock.writeLock().unlock(); |
482 |
< |
} |
483 |
< |
}); |
438 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
439 |
> |
lock.writeLock().lock(); |
440 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
441 |
> |
public void realRun() { |
442 |
> |
lock.writeLock().lock(); |
443 |
> |
lock.writeLock().unlock(); |
444 |
> |
}}); |
445 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
446 |
> |
public void realRun() { |
447 |
> |
lock.writeLock().lock(); |
448 |
> |
lock.writeLock().unlock(); |
449 |
> |
}}); |
450 |
|
|
485 |
– |
t1.start(); |
486 |
– |
t2.start(); |
451 |
|
lock.writeLock().lock(); |
452 |
|
lock.writeLock().unlock(); |
453 |
|
Thread.sleep(SHORT_DELAY_MS); |
465 |
|
* Fair Read trylock succeeds if write locked by current thread |
466 |
|
*/ |
467 |
|
public void testReadHoldingWriteLockFair() { |
468 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
469 |
< |
lock.writeLock().lock(); |
468 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
469 |
> |
lock.writeLock().lock(); |
470 |
|
assertTrue(lock.readLock().tryLock()); |
471 |
|
lock.readLock().unlock(); |
472 |
|
lock.writeLock().unlock(); |
477 |
|
* other threads are waiting for readlock |
478 |
|
*/ |
479 |
|
public void testReadHoldingWriteLockFair2() throws InterruptedException { |
480 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
481 |
< |
lock.writeLock().lock(); |
482 |
< |
Thread t1 = new Thread(new Runnable() { |
483 |
< |
public void run() { |
484 |
< |
lock.readLock().lock(); |
485 |
< |
lock.readLock().unlock(); |
486 |
< |
} |
487 |
< |
}); |
488 |
< |
Thread t2 = new Thread(new Runnable() { |
489 |
< |
public void run() { |
490 |
< |
lock.readLock().lock(); |
491 |
< |
lock.readLock().unlock(); |
528 |
< |
} |
529 |
< |
}); |
480 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
481 |
> |
lock.writeLock().lock(); |
482 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
483 |
> |
public void realRun() { |
484 |
> |
lock.readLock().lock(); |
485 |
> |
lock.readLock().unlock(); |
486 |
> |
}}); |
487 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
488 |
> |
public void realRun() { |
489 |
> |
lock.readLock().lock(); |
490 |
> |
lock.readLock().unlock(); |
491 |
> |
}}); |
492 |
|
|
531 |
– |
t1.start(); |
532 |
– |
t2.start(); |
493 |
|
lock.readLock().lock(); |
494 |
|
lock.readLock().unlock(); |
495 |
|
Thread.sleep(SHORT_DELAY_MS); |
508 |
|
* other threads are waiting for writelock |
509 |
|
*/ |
510 |
|
public void testReadHoldingWriteLockFair3() throws InterruptedException { |
511 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
512 |
< |
lock.writeLock().lock(); |
513 |
< |
Thread t1 = new Thread(new Runnable() { |
514 |
< |
public void run() { |
515 |
< |
lock.writeLock().lock(); |
516 |
< |
lock.writeLock().unlock(); |
517 |
< |
} |
518 |
< |
}); |
519 |
< |
Thread t2 = new Thread(new Runnable() { |
520 |
< |
public void run() { |
521 |
< |
lock.writeLock().lock(); |
522 |
< |
lock.writeLock().unlock(); |
563 |
< |
} |
564 |
< |
}); |
511 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
512 |
> |
lock.writeLock().lock(); |
513 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
514 |
> |
public void realRun() { |
515 |
> |
lock.writeLock().lock(); |
516 |
> |
lock.writeLock().unlock(); |
517 |
> |
}}); |
518 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
519 |
> |
public void realRun() { |
520 |
> |
lock.writeLock().lock(); |
521 |
> |
lock.writeLock().unlock(); |
522 |
> |
}}); |
523 |
|
|
566 |
– |
t1.start(); |
567 |
– |
t2.start(); |
524 |
|
lock.readLock().lock(); |
525 |
|
lock.readLock().unlock(); |
526 |
|
Thread.sleep(SHORT_DELAY_MS); |
539 |
|
* other threads are waiting for writelock |
540 |
|
*/ |
541 |
|
public void testWriteHoldingWriteLockFair4() throws InterruptedException { |
542 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
543 |
< |
lock.writeLock().lock(); |
544 |
< |
Thread t1 = new Thread(new Runnable() { |
545 |
< |
public void run() { |
546 |
< |
lock.writeLock().lock(); |
547 |
< |
lock.writeLock().unlock(); |
548 |
< |
} |
549 |
< |
}); |
550 |
< |
Thread t2 = new Thread(new Runnable() { |
551 |
< |
public void run() { |
552 |
< |
lock.writeLock().lock(); |
553 |
< |
lock.writeLock().unlock(); |
598 |
< |
} |
599 |
< |
}); |
542 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
543 |
> |
lock.writeLock().lock(); |
544 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
545 |
> |
public void realRun() { |
546 |
> |
lock.writeLock().lock(); |
547 |
> |
lock.writeLock().unlock(); |
548 |
> |
}}); |
549 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
550 |
> |
public void realRun() { |
551 |
> |
lock.writeLock().lock(); |
552 |
> |
lock.writeLock().unlock(); |
553 |
> |
}}); |
554 |
|
|
601 |
– |
t1.start(); |
602 |
– |
t2.start(); |
555 |
|
Thread.sleep(SHORT_DELAY_MS); |
556 |
|
assertTrue(lock.isWriteLockedByCurrentThread()); |
557 |
< |
assertTrue(lock.getWriteHoldCount() == 1); |
557 |
> |
assertEquals(1, lock.getWriteHoldCount()); |
558 |
|
lock.writeLock().lock(); |
559 |
< |
assertTrue(lock.getWriteHoldCount() == 2); |
559 |
> |
assertEquals(2, lock.getWriteHoldCount()); |
560 |
|
lock.writeLock().unlock(); |
561 |
|
lock.writeLock().lock(); |
562 |
|
lock.writeLock().unlock(); |
572 |
|
* Read tryLock succeeds if readlocked but not writelocked |
573 |
|
*/ |
574 |
|
public void testTryLockWhenReadLocked() throws InterruptedException { |
575 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
576 |
< |
lock.readLock().lock(); |
577 |
< |
Thread t = new Thread(new Runnable() { |
578 |
< |
public void run() { |
579 |
< |
threadAssertTrue(lock.readLock().tryLock()); |
580 |
< |
lock.readLock().unlock(); |
581 |
< |
} |
630 |
< |
}); |
575 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
576 |
> |
lock.readLock().lock(); |
577 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
578 |
> |
public void realRun() { |
579 |
> |
assertTrue(lock.readLock().tryLock()); |
580 |
> |
lock.readLock().unlock(); |
581 |
> |
}}); |
582 |
|
|
632 |
– |
t.start(); |
583 |
|
t.join(); |
584 |
|
lock.readLock().unlock(); |
585 |
|
} |
586 |
|
|
637 |
– |
|
638 |
– |
|
587 |
|
/** |
588 |
|
* write tryLock fails when readlocked |
589 |
|
*/ |
590 |
|
public void testWriteTryLockWhenReadLocked() throws InterruptedException { |
591 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
592 |
< |
lock.readLock().lock(); |
593 |
< |
Thread t = new Thread(new Runnable() { |
594 |
< |
public void run() { |
595 |
< |
threadAssertFalse(lock.writeLock().tryLock()); |
596 |
< |
} |
649 |
< |
}); |
591 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
592 |
> |
lock.readLock().lock(); |
593 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
594 |
> |
public void realRun() { |
595 |
> |
assertFalse(lock.writeLock().tryLock()); |
596 |
> |
}}); |
597 |
|
|
651 |
– |
t.start(); |
598 |
|
t.join(); |
599 |
|
lock.readLock().unlock(); |
600 |
|
} |
604 |
|
* Fair Read tryLock succeeds if readlocked but not writelocked |
605 |
|
*/ |
606 |
|
public void testTryLockWhenReadLockedFair() throws InterruptedException { |
607 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
608 |
< |
lock.readLock().lock(); |
609 |
< |
Thread t = new Thread(new Runnable() { |
610 |
< |
public void run() { |
611 |
< |
threadAssertTrue(lock.readLock().tryLock()); |
612 |
< |
lock.readLock().unlock(); |
613 |
< |
} |
668 |
< |
}); |
607 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
608 |
> |
lock.readLock().lock(); |
609 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
610 |
> |
public void realRun() { |
611 |
> |
assertTrue(lock.readLock().tryLock()); |
612 |
> |
lock.readLock().unlock(); |
613 |
> |
}}); |
614 |
|
|
670 |
– |
t.start(); |
615 |
|
t.join(); |
616 |
|
lock.readLock().unlock(); |
617 |
|
} |
622 |
|
* Fair write tryLock fails when readlocked |
623 |
|
*/ |
624 |
|
public void testWriteTryLockWhenReadLockedFair() throws InterruptedException { |
625 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
626 |
< |
lock.readLock().lock(); |
627 |
< |
Thread t = new Thread(new Runnable() { |
628 |
< |
public void run() { |
629 |
< |
threadAssertFalse(lock.writeLock().tryLock()); |
630 |
< |
} |
687 |
< |
}); |
625 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
626 |
> |
lock.readLock().lock(); |
627 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
628 |
> |
public void realRun() { |
629 |
> |
assertFalse(lock.writeLock().tryLock()); |
630 |
> |
}}); |
631 |
|
|
689 |
– |
t.start(); |
632 |
|
t.join(); |
633 |
|
lock.readLock().unlock(); |
634 |
|
} |
639 |
|
* write timed tryLock times out if locked |
640 |
|
*/ |
641 |
|
public void testWriteTryLock_Timeout() throws InterruptedException { |
642 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
643 |
< |
lock.writeLock().lock(); |
644 |
< |
Thread t = new Thread(new Runnable() { |
645 |
< |
public void run() { |
646 |
< |
try { |
647 |
< |
threadAssertFalse(lock.writeLock().tryLock(1, TimeUnit.MILLISECONDS)); |
706 |
< |
} catch (Exception ex) { |
707 |
< |
threadUnexpectedException(); |
708 |
< |
} |
709 |
< |
} |
710 |
< |
}); |
642 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
643 |
> |
lock.writeLock().lock(); |
644 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
645 |
> |
public void realRun() throws InterruptedException { |
646 |
> |
assertFalse(lock.writeLock().tryLock(1, MILLISECONDS)); |
647 |
> |
}}); |
648 |
|
|
712 |
– |
t.start(); |
649 |
|
t.join(); |
650 |
+ |
assertTrue(lock.writeLock().isHeldByCurrentThread()); |
651 |
|
lock.writeLock().unlock(); |
652 |
|
} |
653 |
|
|
655 |
|
* read timed tryLock times out if write-locked |
656 |
|
*/ |
657 |
|
public void testReadTryLock_Timeout() throws InterruptedException { |
658 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
659 |
< |
lock.writeLock().lock(); |
660 |
< |
Thread t = new Thread(new Runnable() { |
661 |
< |
public void run() { |
662 |
< |
try { |
663 |
< |
threadAssertFalse(lock.readLock().tryLock(1, TimeUnit.MILLISECONDS)); |
727 |
< |
} catch (Exception ex) { |
728 |
< |
threadUnexpectedException(); |
729 |
< |
} |
730 |
< |
} |
731 |
< |
}); |
658 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
659 |
> |
lock.writeLock().lock(); |
660 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
661 |
> |
public void realRun() throws InterruptedException { |
662 |
> |
assertFalse(lock.readLock().tryLock(1, MILLISECONDS)); |
663 |
> |
}}); |
664 |
|
|
733 |
– |
t.start(); |
665 |
|
t.join(); |
666 |
+ |
assertTrue(lock.writeLock().isHeldByCurrentThread()); |
667 |
|
lock.writeLock().unlock(); |
668 |
|
} |
669 |
|
|
672 |
|
* write lockInterruptibly succeeds if lock free else is interruptible |
673 |
|
*/ |
674 |
|
public void testWriteLockInterruptibly() throws InterruptedException { |
675 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
675 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
676 |
|
lock.writeLock().lockInterruptibly(); |
677 |
< |
Thread t = new Thread(new Runnable() { |
678 |
< |
public void run() { |
679 |
< |
try { |
680 |
< |
lock.writeLock().lockInterruptibly(); |
749 |
< |
threadShouldThrow(); |
750 |
< |
} |
751 |
< |
catch (InterruptedException success) { |
752 |
< |
} |
753 |
< |
} |
754 |
< |
}); |
677 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
678 |
> |
public void realRun() throws InterruptedException { |
679 |
> |
lock.writeLock().lockInterruptibly(); |
680 |
> |
}}); |
681 |
|
|
756 |
– |
t.start(); |
682 |
|
Thread.sleep(SHORT_DELAY_MS); |
683 |
|
t.interrupt(); |
684 |
|
Thread.sleep(SHORT_DELAY_MS); |
687 |
|
} |
688 |
|
|
689 |
|
/** |
690 |
< |
* read lockInterruptibly succeeds if lock free else is interruptible |
690 |
> |
* read lockInterruptibly succeeds if lock free else is interruptible |
691 |
|
*/ |
692 |
|
public void testReadLockInterruptibly() throws InterruptedException { |
693 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
693 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
694 |
|
lock.writeLock().lockInterruptibly(); |
695 |
< |
Thread t = new Thread(new Runnable() { |
696 |
< |
public void run() { |
697 |
< |
try { |
698 |
< |
lock.readLock().lockInterruptibly(); |
774 |
< |
threadShouldThrow(); |
775 |
< |
} |
776 |
< |
catch (InterruptedException success) { |
777 |
< |
} |
778 |
< |
} |
779 |
< |
}); |
695 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
696 |
> |
public void realRun() throws InterruptedException { |
697 |
> |
lock.readLock().lockInterruptibly(); |
698 |
> |
}}); |
699 |
|
|
781 |
– |
t.start(); |
700 |
|
Thread.sleep(SHORT_DELAY_MS); |
701 |
|
t.interrupt(); |
702 |
|
t.join(); |
707 |
|
* Calling await without holding lock throws IllegalMonitorStateException |
708 |
|
*/ |
709 |
|
public void testAwait_IllegalMonitor() throws InterruptedException { |
710 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
710 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
711 |
|
final Condition c = lock.writeLock().newCondition(); |
712 |
|
try { |
713 |
|
c.await(); |
719 |
|
* Calling signal without holding lock throws IllegalMonitorStateException |
720 |
|
*/ |
721 |
|
public void testSignal_IllegalMonitor() { |
722 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
722 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
723 |
|
final Condition c = lock.writeLock().newCondition(); |
724 |
|
try { |
725 |
|
c.signal(); |
731 |
|
* awaitNanos without a signal times out |
732 |
|
*/ |
733 |
|
public void testAwaitNanos_Timeout() throws InterruptedException { |
734 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
734 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
735 |
|
final Condition c = lock.writeLock().newCondition(); |
736 |
|
|
737 |
|
lock.writeLock().lock(); |
742 |
|
|
743 |
|
|
744 |
|
/** |
745 |
< |
* timed await without a signal times out |
745 |
> |
* timed await without a signal times out |
746 |
|
*/ |
747 |
< |
public void testAwait_Timeout() { |
748 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
747 |
> |
public void testAwait_Timeout() throws InterruptedException { |
748 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
749 |
|
final Condition c = lock.writeLock().newCondition(); |
750 |
|
lock.writeLock().lock(); |
751 |
+ |
assertFalse(c.await(SHORT_DELAY_MS, MILLISECONDS)); |
752 |
|
lock.writeLock().unlock(); |
753 |
|
} |
754 |
|
|
755 |
|
/** |
756 |
|
* awaitUntil without a signal times out |
757 |
|
*/ |
758 |
< |
public void testAwaitUntil_Timeout() { |
759 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
758 |
> |
public void testAwaitUntil_Timeout() throws InterruptedException { |
759 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
760 |
|
final Condition c = lock.writeLock().newCondition(); |
761 |
|
lock.writeLock().lock(); |
762 |
|
java.util.Date d = new java.util.Date(); |
763 |
+ |
assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10))); |
764 |
|
lock.writeLock().unlock(); |
765 |
|
} |
766 |
|
|
768 |
|
* await returns when signalled |
769 |
|
*/ |
770 |
|
public void testAwait() throws InterruptedException { |
771 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
771 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
772 |
|
final Condition c = lock.writeLock().newCondition(); |
773 |
< |
Thread t = new Thread(new Runnable() { |
774 |
< |
public void run() { |
775 |
< |
try { |
776 |
< |
lock.writeLock().lock(); |
777 |
< |
c.await(); |
778 |
< |
lock.writeLock().unlock(); |
859 |
< |
} |
860 |
< |
catch (InterruptedException e) { |
861 |
< |
threadUnexpectedException(); |
862 |
< |
} |
863 |
< |
} |
864 |
< |
}); |
773 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
774 |
> |
public void realRun() throws InterruptedException { |
775 |
> |
lock.writeLock().lock(); |
776 |
> |
c.await(); |
777 |
> |
lock.writeLock().unlock(); |
778 |
> |
}}); |
779 |
|
|
866 |
– |
t.start(); |
780 |
|
Thread.sleep(SHORT_DELAY_MS); |
781 |
|
lock.writeLock().lock(); |
782 |
|
c.signal(); |
844 |
|
* await is interruptible |
845 |
|
*/ |
846 |
|
public void testAwait_Interrupt() throws InterruptedException { |
847 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
847 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
848 |
|
final Condition c = lock.writeLock().newCondition(); |
849 |
< |
Thread t = new Thread(new Runnable() { |
850 |
< |
public void run() { |
851 |
< |
try { |
852 |
< |
lock.writeLock().lock(); |
853 |
< |
c.await(); |
854 |
< |
lock.writeLock().unlock(); |
942 |
< |
threadShouldThrow(); |
943 |
< |
} |
944 |
< |
catch (InterruptedException success) { |
945 |
< |
} |
946 |
< |
} |
947 |
< |
}); |
849 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
850 |
> |
public void realRun() throws InterruptedException { |
851 |
> |
lock.writeLock().lock(); |
852 |
> |
c.await(); |
853 |
> |
lock.writeLock().unlock(); |
854 |
> |
}}); |
855 |
|
|
949 |
– |
t.start(); |
856 |
|
Thread.sleep(SHORT_DELAY_MS); |
857 |
|
t.interrupt(); |
858 |
|
t.join(SHORT_DELAY_MS); |
863 |
|
* awaitNanos is interruptible |
864 |
|
*/ |
865 |
|
public void testAwaitNanos_Interrupt() throws InterruptedException { |
866 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
866 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
867 |
|
final Condition c = lock.writeLock().newCondition(); |
868 |
< |
Thread t = new Thread(new Runnable() { |
869 |
< |
public void run() { |
870 |
< |
try { |
871 |
< |
lock.writeLock().lock(); |
872 |
< |
c.awaitNanos(SHORT_DELAY_MS * 2 * 1000000); |
873 |
< |
lock.writeLock().unlock(); |
968 |
< |
threadShouldThrow(); |
969 |
< |
} |
970 |
< |
catch (InterruptedException success) { |
971 |
< |
} |
972 |
< |
} |
973 |
< |
}); |
868 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
869 |
> |
public void realRun() throws InterruptedException { |
870 |
> |
lock.writeLock().lock(); |
871 |
> |
c.awaitNanos(MILLISECONDS.toNanos(LONG_DELAY_MS)); |
872 |
> |
lock.writeLock().unlock(); |
873 |
> |
}}); |
874 |
|
|
975 |
– |
t.start(); |
875 |
|
Thread.sleep(SHORT_DELAY_MS); |
876 |
|
t.interrupt(); |
877 |
|
t.join(SHORT_DELAY_MS); |
882 |
|
* awaitUntil is interruptible |
883 |
|
*/ |
884 |
|
public void testAwaitUntil_Interrupt() throws InterruptedException { |
885 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
885 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
886 |
|
final Condition c = lock.writeLock().newCondition(); |
887 |
< |
Thread t = new Thread(new Runnable() { |
888 |
< |
public void run() { |
889 |
< |
try { |
890 |
< |
lock.writeLock().lock(); |
891 |
< |
java.util.Date d = new java.util.Date(); |
892 |
< |
c.awaitUntil(new java.util.Date(d.getTime() + 10000)); |
893 |
< |
lock.writeLock().unlock(); |
995 |
< |
threadShouldThrow(); |
996 |
< |
} |
997 |
< |
catch (InterruptedException success) { |
998 |
< |
} |
999 |
< |
} |
1000 |
< |
}); |
887 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
888 |
> |
public void realRun() throws InterruptedException { |
889 |
> |
lock.writeLock().lock(); |
890 |
> |
java.util.Date d = new java.util.Date(); |
891 |
> |
c.awaitUntil(new java.util.Date(d.getTime() + 10000)); |
892 |
> |
lock.writeLock().unlock(); |
893 |
> |
}}); |
894 |
|
|
1002 |
– |
t.start(); |
895 |
|
Thread.sleep(SHORT_DELAY_MS); |
896 |
|
t.interrupt(); |
897 |
|
t.join(SHORT_DELAY_MS); |
902 |
|
* signalAll wakes up all threads |
903 |
|
*/ |
904 |
|
public void testSignalAll() throws InterruptedException { |
905 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
905 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
906 |
|
final Condition c = lock.writeLock().newCondition(); |
907 |
< |
Thread t1 = new Thread(new Runnable() { |
908 |
< |
public void run() { |
909 |
< |
try { |
910 |
< |
lock.writeLock().lock(); |
911 |
< |
c.await(); |
912 |
< |
lock.writeLock().unlock(); |
913 |
< |
} |
914 |
< |
catch (InterruptedException e) { |
915 |
< |
threadUnexpectedException(); |
916 |
< |
} |
917 |
< |
} |
918 |
< |
}); |
919 |
< |
|
1028 |
< |
Thread t2 = new Thread(new Runnable() { |
1029 |
< |
public void run() { |
1030 |
< |
try { |
1031 |
< |
lock.writeLock().lock(); |
1032 |
< |
c.await(); |
1033 |
< |
lock.writeLock().unlock(); |
1034 |
< |
} |
1035 |
< |
catch (InterruptedException e) { |
1036 |
< |
threadUnexpectedException(); |
1037 |
< |
} |
1038 |
< |
} |
1039 |
< |
}); |
907 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
908 |
> |
public void realRun() throws InterruptedException { |
909 |
> |
lock.writeLock().lock(); |
910 |
> |
c.await(); |
911 |
> |
lock.writeLock().unlock(); |
912 |
> |
}}); |
913 |
> |
|
914 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
915 |
> |
public void realRun() throws InterruptedException { |
916 |
> |
lock.writeLock().lock(); |
917 |
> |
c.await(); |
918 |
> |
lock.writeLock().unlock(); |
919 |
> |
}}); |
920 |
|
|
1041 |
– |
t1.start(); |
1042 |
– |
t2.start(); |
921 |
|
Thread.sleep(SHORT_DELAY_MS); |
922 |
|
lock.writeLock().lock(); |
923 |
|
c.signalAll(); |
952 |
|
* hasQueuedThreads reports whether there are waiting threads |
953 |
|
*/ |
954 |
|
public void testhasQueuedThreads() throws InterruptedException { |
955 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
955 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
956 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
957 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
958 |
|
assertFalse(lock.hasQueuedThreads()); |
977 |
|
* hasQueuedThread(null) throws NPE |
978 |
|
*/ |
979 |
|
public void testHasQueuedThreadNPE() { |
980 |
< |
final ReentrantReadWriteLock sync = new ReentrantReadWriteLock(); |
980 |
> |
final ReentrantReadWriteLock sync = new ReentrantReadWriteLock(); |
981 |
|
try { |
982 |
|
sync.hasQueuedThread(null); |
983 |
|
shouldThrow(); |
984 |
< |
} catch (NullPointerException success) { |
1107 |
< |
} |
984 |
> |
} catch (NullPointerException success) {} |
985 |
|
} |
986 |
|
|
987 |
|
/** |
988 |
|
* hasQueuedThread reports whether a thread is queued. |
989 |
|
*/ |
990 |
|
public void testHasQueuedThread() throws InterruptedException { |
991 |
< |
final ReentrantReadWriteLock sync = new ReentrantReadWriteLock(); |
991 |
> |
final ReentrantReadWriteLock sync = new ReentrantReadWriteLock(); |
992 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(sync)); |
993 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(sync)); |
994 |
|
assertFalse(sync.hasQueuedThread(t1)); |
1019 |
|
* getQueueLength reports number of waiting threads |
1020 |
|
*/ |
1021 |
|
public void testGetQueueLength() throws InterruptedException { |
1022 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1022 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1023 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
1024 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
1025 |
|
assertEquals(0, lock.getQueueLength()); |
1044 |
|
* getQueuedThreads includes waiting threads |
1045 |
|
*/ |
1046 |
|
public void testGetQueuedThreads() throws InterruptedException { |
1047 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1047 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1048 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
1049 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
1050 |
|
assertTrue(lock.getQueuedThreads().isEmpty()); |
1072 |
|
* hasWaiters throws NPE if null |
1073 |
|
*/ |
1074 |
|
public void testHasWaitersNPE() { |
1075 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1075 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1076 |
|
try { |
1077 |
|
lock.hasWaiters(null); |
1078 |
|
shouldThrow(); |
1083 |
|
* getWaitQueueLength throws NPE if null |
1084 |
|
*/ |
1085 |
|
public void testGetWaitQueueLengthNPE() { |
1086 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1086 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1087 |
|
try { |
1088 |
|
lock.getWaitQueueLength(null); |
1089 |
|
shouldThrow(); |
1095 |
|
* getWaitingThreads throws NPE if null |
1096 |
|
*/ |
1097 |
|
public void testGetWaitingThreadsNPE() { |
1098 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1098 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1099 |
|
try { |
1100 |
|
lock.getWaitingThreads(null); |
1101 |
|
shouldThrow(); |
1106 |
|
* hasWaiters throws IAE if not owned |
1107 |
|
*/ |
1108 |
|
public void testHasWaitersIAE() { |
1109 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1109 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1110 |
|
final Condition c = lock.writeLock().newCondition(); |
1111 |
< |
final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(); |
1111 |
> |
final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(); |
1112 |
|
try { |
1113 |
|
lock2.hasWaiters(c); |
1114 |
|
shouldThrow(); |
1119 |
|
* hasWaiters throws IMSE if not locked |
1120 |
|
*/ |
1121 |
|
public void testHasWaitersIMSE() { |
1122 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1122 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1123 |
|
final Condition c = lock.writeLock().newCondition(); |
1124 |
|
try { |
1125 |
|
lock.hasWaiters(c); |
1132 |
|
* getWaitQueueLength throws IAE if not owned |
1133 |
|
*/ |
1134 |
|
public void testGetWaitQueueLengthIAE() { |
1135 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1135 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1136 |
|
final Condition c = lock.writeLock().newCondition(); |
1137 |
< |
final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(); |
1137 |
> |
final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(); |
1138 |
|
try { |
1139 |
|
lock2.getWaitQueueLength(c); |
1140 |
|
shouldThrow(); |
1145 |
|
* getWaitQueueLength throws IMSE if not locked |
1146 |
|
*/ |
1147 |
|
public void testGetWaitQueueLengthIMSE() { |
1148 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1148 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1149 |
|
final Condition c = lock.writeLock().newCondition(); |
1150 |
|
try { |
1151 |
|
lock.getWaitQueueLength(c); |
1158 |
|
* getWaitingThreads throws IAE if not owned |
1159 |
|
*/ |
1160 |
|
public void testGetWaitingThreadsIAE() { |
1161 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1161 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1162 |
|
final Condition c = lock.writeLock().newCondition(); |
1163 |
< |
final PublicReentrantReadWriteLock lock2 = new PublicReentrantReadWriteLock(); |
1163 |
> |
final PublicReentrantReadWriteLock lock2 = new PublicReentrantReadWriteLock(); |
1164 |
|
try { |
1165 |
|
lock2.getWaitingThreads(c); |
1166 |
|
shouldThrow(); |
1171 |
|
* getWaitingThreads throws IMSE if not locked |
1172 |
|
*/ |
1173 |
|
public void testGetWaitingThreadsIMSE() { |
1174 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1174 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1175 |
|
final Condition c = lock.writeLock().newCondition(); |
1176 |
|
try { |
1177 |
|
lock.getWaitingThreads(c); |
1184 |
|
* hasWaiters returns true when a thread is waiting, else false |
1185 |
|
*/ |
1186 |
|
public void testHasWaiters() throws InterruptedException { |
1187 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1187 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1188 |
|
final Condition c = lock.writeLock().newCondition(); |
1189 |
< |
Thread t = new Thread(new Runnable() { |
1190 |
< |
public void run() { |
1191 |
< |
try { |
1192 |
< |
lock.writeLock().lock(); |
1193 |
< |
threadAssertFalse(lock.hasWaiters(c)); |
1194 |
< |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
1195 |
< |
c.await(); |
1196 |
< |
lock.writeLock().unlock(); |
1320 |
< |
} |
1321 |
< |
catch (InterruptedException e) { |
1322 |
< |
threadUnexpectedException(); |
1323 |
< |
} |
1324 |
< |
} |
1325 |
< |
}); |
1189 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
1190 |
> |
public void realRun() throws InterruptedException { |
1191 |
> |
lock.writeLock().lock(); |
1192 |
> |
assertFalse(lock.hasWaiters(c)); |
1193 |
> |
assertEquals(0, lock.getWaitQueueLength(c)); |
1194 |
> |
c.await(); |
1195 |
> |
lock.writeLock().unlock(); |
1196 |
> |
}}); |
1197 |
|
|
1327 |
– |
t.start(); |
1198 |
|
Thread.sleep(SHORT_DELAY_MS); |
1199 |
|
lock.writeLock().lock(); |
1200 |
|
assertTrue(lock.hasWaiters(c)); |
1214 |
|
* getWaitQueueLength returns number of waiting threads |
1215 |
|
*/ |
1216 |
|
public void testGetWaitQueueLength() throws InterruptedException { |
1217 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1217 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1218 |
|
final Condition c = lock.writeLock().newCondition(); |
1219 |
< |
Thread t = new Thread(new Runnable() { |
1220 |
< |
public void run() { |
1221 |
< |
try { |
1222 |
< |
lock.writeLock().lock(); |
1223 |
< |
threadAssertFalse(lock.hasWaiters(c)); |
1224 |
< |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
1225 |
< |
c.await(); |
1226 |
< |
lock.writeLock().unlock(); |
1357 |
< |
} |
1358 |
< |
catch (InterruptedException e) { |
1359 |
< |
threadUnexpectedException(); |
1360 |
< |
} |
1361 |
< |
} |
1362 |
< |
}); |
1219 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
1220 |
> |
public void realRun() throws InterruptedException { |
1221 |
> |
lock.writeLock().lock(); |
1222 |
> |
assertFalse(lock.hasWaiters(c)); |
1223 |
> |
assertEquals(0, lock.getWaitQueueLength(c)); |
1224 |
> |
c.await(); |
1225 |
> |
lock.writeLock().unlock(); |
1226 |
> |
}}); |
1227 |
|
|
1364 |
– |
t.start(); |
1228 |
|
Thread.sleep(SHORT_DELAY_MS); |
1229 |
|
lock.writeLock().lock(); |
1230 |
|
assertTrue(lock.hasWaiters(c)); |
1245 |
|
* getWaitingThreads returns only and all waiting threads |
1246 |
|
*/ |
1247 |
|
public void testGetWaitingThreads() throws InterruptedException { |
1248 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1248 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1249 |
|
final Condition c = lock.writeLock().newCondition(); |
1250 |
< |
Thread t1 = new Thread(new Runnable() { |
1251 |
< |
public void run() { |
1252 |
< |
try { |
1253 |
< |
lock.writeLock().lock(); |
1254 |
< |
threadAssertTrue(lock.getWaitingThreads(c).isEmpty()); |
1255 |
< |
c.await(); |
1256 |
< |
lock.writeLock().unlock(); |
1257 |
< |
} |
1258 |
< |
catch (InterruptedException e) { |
1259 |
< |
threadUnexpectedException(); |
1260 |
< |
} |
1261 |
< |
} |
1262 |
< |
}); |
1263 |
< |
|
1264 |
< |
Thread t2 = new Thread(new Runnable() { |
1402 |
< |
public void run() { |
1403 |
< |
try { |
1404 |
< |
lock.writeLock().lock(); |
1405 |
< |
threadAssertFalse(lock.getWaitingThreads(c).isEmpty()); |
1406 |
< |
c.await(); |
1407 |
< |
lock.writeLock().unlock(); |
1408 |
< |
} |
1409 |
< |
catch (InterruptedException e) { |
1410 |
< |
threadUnexpectedException(); |
1411 |
< |
} |
1412 |
< |
} |
1413 |
< |
}); |
1250 |
> |
Thread t1 = new Thread(new CheckedRunnable() { |
1251 |
> |
public void realRun() throws InterruptedException { |
1252 |
> |
lock.writeLock().lock(); |
1253 |
> |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
1254 |
> |
c.await(); |
1255 |
> |
lock.writeLock().unlock(); |
1256 |
> |
}}); |
1257 |
> |
|
1258 |
> |
Thread t2 = new Thread(new CheckedRunnable() { |
1259 |
> |
public void realRun() throws InterruptedException { |
1260 |
> |
lock.writeLock().lock(); |
1261 |
> |
assertFalse(lock.getWaitingThreads(c).isEmpty()); |
1262 |
> |
c.await(); |
1263 |
> |
lock.writeLock().unlock(); |
1264 |
> |
}}); |
1265 |
|
|
1266 |
|
lock.writeLock().lock(); |
1267 |
|
assertTrue(lock.getWaitingThreads(c).isEmpty()); |