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/* |
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* Written by members of JCP JSR-166 Expert Group and released to the |
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* public domain. Use, modify, and redistribute this code in any way |
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* without acknowledgement. Other contributors include Andrew Wright, |
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* Jeffrey Hayes, Pat Fischer, Mike Judd. |
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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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*/ |
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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 java.util.*; |
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import java.io.*; |
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public class ReentrantLockTest extends JSR166TestCase { |
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static int HOLD_COUNT_TEST_LIMIT = 20; |
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|
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public static void main(String[] args) { |
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junit.textui.TestRunner.run (suite()); |
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} |
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|
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public static Test suite() { |
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return new TestSuite(ReentrantLockTest.class); |
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} |
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|
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/* |
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* Unlocks an unlocked lock, throws Illegal Monitor State |
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* |
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/** |
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* A runnable calling lockInterruptibly |
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*/ |
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class InterruptibleLockRunnable implements Runnable { |
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final ReentrantLock lock; |
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InterruptibleLockRunnable(ReentrantLock l) { lock = l; } |
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public void run() { |
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try { |
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lock.lockInterruptibly(); |
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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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/** |
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* A runnable calling lockInterruptibly that expects to be |
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* interrupted |
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*/ |
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class InterruptedLockRunnable implements Runnable { |
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final ReentrantLock lock; |
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InterruptedLockRunnable(ReentrantLock l) { lock = l; } |
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public void run() { |
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> |
try { |
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> |
lock.lockInterruptibly(); |
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> |
threadShouldThrow(); |
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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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* Subclass to expose protected methods |
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> |
*/ |
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> |
static class PublicReentrantLock extends ReentrantLock { |
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PublicReentrantLock() { super(); } |
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public Collection<Thread> getQueuedThreads() { |
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return super.getQueuedThreads(); |
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} |
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public Collection<Thread> getWaitingThreads(Condition c) { |
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return super.getWaitingThreads(c); |
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} |
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|
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|
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} |
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|
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/** |
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* Constructor sets given fairness |
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*/ |
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public void testConstructor() { |
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ReentrantLock rl = new ReentrantLock(); |
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assertFalse(rl.isFair()); |
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ReentrantLock r2 = new ReentrantLock(true); |
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assertTrue(r2.isFair()); |
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} |
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|
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/** |
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* locking an unlocked lock succeeds |
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*/ |
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public void testLock() { |
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ReentrantLock rl = new ReentrantLock(); |
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rl.lock(); |
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> |
assertTrue(rl.isLocked()); |
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rl.unlock(); |
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} |
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|
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/** |
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* locking an unlocked fair lock succeeds |
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*/ |
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public void testIllegalMonitorStateException(){ |
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public void testFairLock() { |
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ReentrantLock rl = new ReentrantLock(true); |
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rl.lock(); |
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assertTrue(rl.isLocked()); |
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rl.unlock(); |
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> |
} |
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|
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/** |
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* Unlocking an unlocked lock throws IllegalMonitorStateException |
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*/ |
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public void testUnlock_IllegalMonitorStateException() { |
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ReentrantLock rl = new ReentrantLock(); |
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try{ |
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try { |
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rl.unlock(); |
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fail("Should of thown Illegal Monitor State Exception"); |
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shouldThrow(); |
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|
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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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* tryLock on an unlocked lock succeeds |
111 |
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*/ |
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public void testTryLock() { |
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ReentrantLock rl = new ReentrantLock(); |
114 |
> |
assertTrue(rl.tryLock()); |
115 |
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assertTrue(rl.isLocked()); |
116 |
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rl.unlock(); |
117 |
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} |
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|
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/* |
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* makes a lock, locks it, tries to aquire the lock in another thread |
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* interrupts that thread and waits for an interrupted Exception to |
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* be thrown. |
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|
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|
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/** |
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* hasQueuedThreads reports whether there are waiting threads |
122 |
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*/ |
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public void testhasQueuedThreads() { |
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final ReentrantLock lock = new ReentrantLock(); |
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Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
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Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
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try { |
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assertFalse(lock.hasQueuedThreads()); |
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lock.lock(); |
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t1.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertTrue(lock.hasQueuedThreads()); |
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t2.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertTrue(lock.hasQueuedThreads()); |
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t1.interrupt(); |
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Thread.sleep(SHORT_DELAY_MS); |
138 |
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assertTrue(lock.hasQueuedThreads()); |
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lock.unlock(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertFalse(lock.hasQueuedThreads()); |
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t1.join(); |
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t2.join(); |
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} catch(Exception e){ |
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unexpectedException(); |
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} |
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} |
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|
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public void testInterruptedException(){ |
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/** |
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> |
* getQueueLength reports number of waiting threads |
151 |
> |
*/ |
152 |
> |
public void testGetQueueLength() { |
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final ReentrantLock lock = new ReentrantLock(); |
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< |
lock.lock(); |
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< |
Thread t = new Thread(new Runnable() { |
49 |
< |
public void run(){ |
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< |
try{ |
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< |
lock.lockInterruptibly(); |
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< |
threadFail("should throw"); |
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< |
} catch(InterruptedException success){} |
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} |
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}); |
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> |
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
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> |
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
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try { |
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< |
t.start(); |
158 |
< |
t.interrupt(); |
157 |
> |
assertEquals(0, lock.getQueueLength()); |
158 |
> |
lock.lock(); |
159 |
> |
t1.start(); |
160 |
> |
Thread.sleep(SHORT_DELAY_MS); |
161 |
> |
assertEquals(1, lock.getQueueLength()); |
162 |
> |
t2.start(); |
163 |
> |
Thread.sleep(SHORT_DELAY_MS); |
164 |
> |
assertEquals(2, lock.getQueueLength()); |
165 |
> |
t1.interrupt(); |
166 |
> |
Thread.sleep(SHORT_DELAY_MS); |
167 |
> |
assertEquals(1, lock.getQueueLength()); |
168 |
|
lock.unlock(); |
169 |
< |
t.join(); |
169 |
> |
Thread.sleep(SHORT_DELAY_MS); |
170 |
> |
assertEquals(0, lock.getQueueLength()); |
171 |
> |
t1.join(); |
172 |
> |
t2.join(); |
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|
} catch(Exception e){ |
174 |
< |
fail("unexpected exception"); |
174 |
> |
unexpectedException(); |
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} |
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} |
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|
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/* |
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* tests for interrupted exception on a timed wait |
68 |
< |
* |
178 |
> |
/** |
179 |
> |
* getQueueLength reports number of waiting threads |
180 |
|
*/ |
181 |
< |
|
181 |
> |
public void testGetQueueLength_fair() { |
182 |
> |
final ReentrantLock lock = new ReentrantLock(true); |
183 |
> |
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
184 |
> |
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
185 |
> |
try { |
186 |
> |
assertEquals(0, lock.getQueueLength()); |
187 |
> |
lock.lock(); |
188 |
> |
t1.start(); |
189 |
> |
Thread.sleep(SHORT_DELAY_MS); |
190 |
> |
assertEquals(1, lock.getQueueLength()); |
191 |
> |
t2.start(); |
192 |
> |
Thread.sleep(SHORT_DELAY_MS); |
193 |
> |
assertEquals(2, lock.getQueueLength()); |
194 |
> |
t1.interrupt(); |
195 |
> |
Thread.sleep(SHORT_DELAY_MS); |
196 |
> |
assertEquals(1, lock.getQueueLength()); |
197 |
> |
lock.unlock(); |
198 |
> |
Thread.sleep(SHORT_DELAY_MS); |
199 |
> |
assertEquals(0, lock.getQueueLength()); |
200 |
> |
t1.join(); |
201 |
> |
t2.join(); |
202 |
> |
} catch(Exception e){ |
203 |
> |
unexpectedException(); |
204 |
> |
} |
205 |
> |
} |
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|
|
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< |
public void testInterruptedException2(){ |
207 |
> |
/** |
208 |
> |
* getQueuedThreads includes waiting threads |
209 |
> |
*/ |
210 |
> |
public void testGetQueuedThreads() { |
211 |
> |
final PublicReentrantLock lock = new PublicReentrantLock(); |
212 |
> |
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
213 |
> |
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
214 |
> |
try { |
215 |
> |
assertTrue(lock.getQueuedThreads().isEmpty()); |
216 |
> |
lock.lock(); |
217 |
> |
assertTrue(lock.getQueuedThreads().isEmpty()); |
218 |
> |
t1.start(); |
219 |
> |
Thread.sleep(SHORT_DELAY_MS); |
220 |
> |
assertTrue(lock.getQueuedThreads().contains(t1)); |
221 |
> |
t2.start(); |
222 |
> |
Thread.sleep(SHORT_DELAY_MS); |
223 |
> |
assertTrue(lock.getQueuedThreads().contains(t1)); |
224 |
> |
assertTrue(lock.getQueuedThreads().contains(t2)); |
225 |
> |
t1.interrupt(); |
226 |
> |
Thread.sleep(SHORT_DELAY_MS); |
227 |
> |
assertFalse(lock.getQueuedThreads().contains(t1)); |
228 |
> |
assertTrue(lock.getQueuedThreads().contains(t2)); |
229 |
> |
lock.unlock(); |
230 |
> |
Thread.sleep(SHORT_DELAY_MS); |
231 |
> |
assertTrue(lock.getQueuedThreads().isEmpty()); |
232 |
> |
t1.join(); |
233 |
> |
t2.join(); |
234 |
> |
} catch(Exception e){ |
235 |
> |
unexpectedException(); |
236 |
> |
} |
237 |
> |
} |
238 |
> |
|
239 |
> |
|
240 |
> |
/** |
241 |
> |
* timed tryLock is interruptible. |
242 |
> |
*/ |
243 |
> |
public void testInterruptedException2() { |
244 |
|
final ReentrantLock lock = new ReentrantLock(); |
245 |
|
lock.lock(); |
246 |
|
Thread t = new Thread(new Runnable() { |
247 |
< |
public void run(){ |
248 |
< |
try{ |
247 |
> |
public void run() { |
248 |
> |
try { |
249 |
|
lock.tryLock(MEDIUM_DELAY_MS,TimeUnit.MILLISECONDS); |
250 |
< |
threadFail("should throw"); |
250 |
> |
threadShouldThrow(); |
251 |
|
} catch(InterruptedException success){} |
252 |
|
} |
253 |
|
}); |
255 |
|
t.start(); |
256 |
|
t.interrupt(); |
257 |
|
} catch(Exception e){ |
258 |
< |
fail("unexpected exception"); |
258 |
> |
unexpectedException(); |
259 |
|
} |
260 |
|
} |
261 |
|
|
262 |
|
|
263 |
+ |
/** |
264 |
+ |
* TryLock on a locked lock fails |
265 |
+ |
*/ |
266 |
|
public void testTryLockWhenLocked() { |
267 |
|
final ReentrantLock lock = new ReentrantLock(); |
268 |
|
lock.lock(); |
269 |
|
Thread t = new Thread(new Runnable() { |
270 |
< |
public void run(){ |
270 |
> |
public void run() { |
271 |
|
threadAssertFalse(lock.tryLock()); |
272 |
|
} |
273 |
|
}); |
276 |
|
t.join(); |
277 |
|
lock.unlock(); |
278 |
|
} catch(Exception e){ |
279 |
< |
fail("unexpected exception"); |
279 |
> |
unexpectedException(); |
280 |
|
} |
281 |
|
} |
282 |
|
|
283 |
< |
public void testTryLock_Timeout(){ |
283 |
> |
/** |
284 |
> |
* Timed tryLock on a locked lock times out |
285 |
> |
*/ |
286 |
> |
public void testTryLock_Timeout() { |
287 |
|
final ReentrantLock lock = new ReentrantLock(); |
288 |
|
lock.lock(); |
289 |
|
Thread t = new Thread(new Runnable() { |
290 |
< |
public void run(){ |
290 |
> |
public void run() { |
291 |
|
try { |
292 |
|
threadAssertFalse(lock.tryLock(1, TimeUnit.MILLISECONDS)); |
293 |
|
} catch (Exception ex) { |
294 |
< |
threadFail("unexpected exception"); |
294 |
> |
threadUnexpectedException(); |
295 |
|
} |
296 |
|
} |
297 |
|
}); |
300 |
|
t.join(); |
301 |
|
lock.unlock(); |
302 |
|
} catch(Exception e){ |
303 |
< |
fail("unexpected exception"); |
303 |
> |
unexpectedException(); |
304 |
|
} |
305 |
|
} |
306 |
|
|
307 |
+ |
/** |
308 |
+ |
* getHoldCount returns number of recursive holds |
309 |
+ |
*/ |
310 |
|
public void testGetHoldCount() { |
311 |
|
ReentrantLock lock = new ReentrantLock(); |
312 |
< |
for(int i = 1; i <= ReentrantLockTest.HOLD_COUNT_TEST_LIMIT;i++) { |
312 |
> |
for(int i = 1; i <= SIZE; i++) { |
313 |
|
lock.lock(); |
314 |
|
assertEquals(i,lock.getHoldCount()); |
315 |
|
} |
316 |
< |
for(int i = ReentrantLockTest.HOLD_COUNT_TEST_LIMIT; i > 0; i--) { |
316 |
> |
for(int i = SIZE; i > 0; i--) { |
317 |
|
lock.unlock(); |
318 |
|
assertEquals(i-1,lock.getHoldCount()); |
319 |
|
} |
320 |
|
} |
321 |
|
|
322 |
|
|
323 |
< |
|
324 |
< |
|
323 |
> |
/** |
324 |
> |
* isLocked is true when locked and false when not |
325 |
> |
*/ |
326 |
|
public void testIsLocked() { |
327 |
|
final ReentrantLock lock = new ReentrantLock(); |
328 |
|
lock.lock(); |
336 |
|
Thread.sleep(SMALL_DELAY_MS); |
337 |
|
} |
338 |
|
catch(Exception e) { |
339 |
< |
threadFail("unexpected exception"); |
339 |
> |
threadUnexpectedException(); |
340 |
|
} |
341 |
|
lock.unlock(); |
342 |
|
} |
343 |
|
}); |
344 |
< |
try{ |
344 |
> |
try { |
345 |
|
t.start(); |
346 |
|
Thread.sleep(SHORT_DELAY_MS); |
347 |
|
assertTrue(lock.isLocked()); |
348 |
|
t.join(); |
349 |
|
assertFalse(lock.isLocked()); |
350 |
|
} catch(Exception e){ |
351 |
< |
fail("unexpected exception"); |
351 |
> |
unexpectedException(); |
352 |
|
} |
353 |
|
} |
354 |
|
|
355 |
|
|
356 |
< |
public void testLockInterruptibly() { |
356 |
> |
/** |
357 |
> |
* lockInterruptibly is interruptible. |
358 |
> |
*/ |
359 |
> |
public void testLockInterruptibly1() { |
360 |
> |
final ReentrantLock lock = new ReentrantLock(); |
361 |
> |
lock.lock(); |
362 |
> |
Thread t = new Thread(new InterruptedLockRunnable(lock)); |
363 |
> |
try { |
364 |
> |
t.start(); |
365 |
> |
t.interrupt(); |
366 |
> |
lock.unlock(); |
367 |
> |
t.join(); |
368 |
> |
} catch(Exception e){ |
369 |
> |
unexpectedException(); |
370 |
> |
} |
371 |
> |
} |
372 |
> |
|
373 |
> |
/** |
374 |
> |
* lockInterruptibly succeeds when unlocked, else is interruptible |
375 |
> |
*/ |
376 |
> |
public void testLockInterruptibly2() { |
377 |
|
final ReentrantLock lock = new ReentrantLock(); |
378 |
|
try { |
379 |
|
lock.lockInterruptibly(); |
380 |
|
} catch(Exception e) { |
381 |
< |
fail("unexpected exception"); |
381 |
> |
unexpectedException(); |
382 |
|
} |
383 |
< |
Thread t = new Thread(new Runnable() { |
183 |
< |
public void run() { |
184 |
< |
try { |
185 |
< |
lock.lockInterruptibly(); |
186 |
< |
threadFail("should throw"); |
187 |
< |
} |
188 |
< |
catch(InterruptedException e) {} |
189 |
< |
} |
190 |
< |
}); |
383 |
> |
Thread t = new Thread(new InterruptedLockRunnable(lock)); |
384 |
|
try { |
385 |
|
t.start(); |
386 |
|
t.interrupt(); |
388 |
|
assertTrue(lock.isHeldByCurrentThread()); |
389 |
|
t.join(); |
390 |
|
} catch(Exception e){ |
391 |
< |
fail("unexpected exception"); |
391 |
> |
unexpectedException(); |
392 |
|
} |
393 |
|
} |
394 |
|
|
395 |
+ |
/** |
396 |
+ |
* Calling await without holding lock throws IllegalMonitorStateException |
397 |
+ |
*/ |
398 |
|
public void testAwait_IllegalMonitor() { |
399 |
|
final ReentrantLock lock = new ReentrantLock(); |
400 |
|
final Condition c = lock.newCondition(); |
401 |
|
try { |
402 |
|
c.await(); |
403 |
< |
fail("should throw"); |
403 |
> |
shouldThrow(); |
404 |
|
} |
405 |
|
catch (IllegalMonitorStateException success) { |
406 |
|
} |
407 |
|
catch (Exception ex) { |
408 |
< |
fail("should throw IMSE"); |
408 |
> |
unexpectedException(); |
409 |
|
} |
410 |
|
} |
411 |
|
|
412 |
+ |
/** |
413 |
+ |
* Calling signal without holding lock throws IllegalMonitorStateException |
414 |
+ |
*/ |
415 |
|
public void testSignal_IllegalMonitor() { |
416 |
|
final ReentrantLock lock = new ReentrantLock(); |
417 |
|
final Condition c = lock.newCondition(); |
418 |
|
try { |
419 |
|
c.signal(); |
420 |
< |
fail("should throw"); |
420 |
> |
shouldThrow(); |
421 |
|
} |
422 |
|
catch (IllegalMonitorStateException success) { |
423 |
|
} |
424 |
|
catch (Exception ex) { |
425 |
< |
fail("should throw IMSE"); |
425 |
> |
unexpectedException(); |
426 |
|
} |
427 |
|
} |
428 |
|
|
429 |
+ |
/** |
430 |
+ |
* awaitNanos without a signal times out |
431 |
+ |
*/ |
432 |
|
public void testAwaitNanos_Timeout() { |
433 |
|
final ReentrantLock lock = new ReentrantLock(); |
434 |
|
final Condition c = lock.newCondition(); |
439 |
|
lock.unlock(); |
440 |
|
} |
441 |
|
catch (Exception ex) { |
442 |
< |
fail("unexpected exception"); |
442 |
> |
unexpectedException(); |
443 |
|
} |
444 |
|
} |
445 |
|
|
446 |
+ |
/** |
447 |
+ |
* timed await without a signal times out |
448 |
+ |
*/ |
449 |
|
public void testAwait_Timeout() { |
450 |
|
final ReentrantLock lock = new ReentrantLock(); |
451 |
|
final Condition c = lock.newCondition(); |
455 |
|
lock.unlock(); |
456 |
|
} |
457 |
|
catch (Exception ex) { |
458 |
< |
fail("unexpected exception"); |
458 |
> |
unexpectedException(); |
459 |
|
} |
460 |
|
} |
461 |
|
|
462 |
+ |
/** |
463 |
+ |
* awaitUntil without a signal times out |
464 |
+ |
*/ |
465 |
|
public void testAwaitUntil_Timeout() { |
466 |
|
final ReentrantLock lock = new ReentrantLock(); |
467 |
|
final Condition c = lock.newCondition(); |
472 |
|
lock.unlock(); |
473 |
|
} |
474 |
|
catch (Exception ex) { |
475 |
< |
fail("unexpected exception"); |
475 |
> |
unexpectedException(); |
476 |
|
} |
477 |
|
} |
478 |
|
|
479 |
+ |
/** |
480 |
+ |
* await returns when signalled |
481 |
+ |
*/ |
482 |
|
public void testAwait() { |
483 |
|
final ReentrantLock lock = new ReentrantLock(); |
484 |
|
final Condition c = lock.newCondition(); |
490 |
|
lock.unlock(); |
491 |
|
} |
492 |
|
catch(InterruptedException e) { |
493 |
< |
threadFail("unexpected exception"); |
493 |
> |
threadUnexpectedException(); |
494 |
> |
} |
495 |
> |
} |
496 |
> |
}); |
497 |
> |
|
498 |
> |
try { |
499 |
> |
t.start(); |
500 |
> |
Thread.sleep(SHORT_DELAY_MS); |
501 |
> |
lock.lock(); |
502 |
> |
c.signal(); |
503 |
> |
lock.unlock(); |
504 |
> |
t.join(SHORT_DELAY_MS); |
505 |
> |
assertFalse(t.isAlive()); |
506 |
> |
} |
507 |
> |
catch (Exception ex) { |
508 |
> |
unexpectedException(); |
509 |
> |
} |
510 |
> |
} |
511 |
> |
|
512 |
> |
/** |
513 |
> |
* hasWaiters throws NPE if null |
514 |
> |
*/ |
515 |
> |
public void testHasWaitersNPE() { |
516 |
> |
final ReentrantLock lock = new ReentrantLock(); |
517 |
> |
try { |
518 |
> |
lock.hasWaiters(null); |
519 |
> |
shouldThrow(); |
520 |
> |
} catch (NullPointerException success) { |
521 |
> |
} catch (Exception ex) { |
522 |
> |
unexpectedException(); |
523 |
> |
} |
524 |
> |
} |
525 |
> |
|
526 |
> |
/** |
527 |
> |
* getWaitQueueLength throws NPE if null |
528 |
> |
*/ |
529 |
> |
public void testGetWaitQueueLengthNPE() { |
530 |
> |
final ReentrantLock lock = new ReentrantLock(); |
531 |
> |
try { |
532 |
> |
lock.getWaitQueueLength(null); |
533 |
> |
shouldThrow(); |
534 |
> |
} catch (NullPointerException success) { |
535 |
> |
} catch (Exception ex) { |
536 |
> |
unexpectedException(); |
537 |
> |
} |
538 |
> |
} |
539 |
> |
|
540 |
> |
|
541 |
> |
/** |
542 |
> |
* getWaitingThreads throws NPE if null |
543 |
> |
*/ |
544 |
> |
public void testGetWaitingThreadsNPE() { |
545 |
> |
final PublicReentrantLock lock = new PublicReentrantLock(); |
546 |
> |
try { |
547 |
> |
lock.getWaitingThreads(null); |
548 |
> |
shouldThrow(); |
549 |
> |
} catch (NullPointerException success) { |
550 |
> |
} catch (Exception ex) { |
551 |
> |
unexpectedException(); |
552 |
> |
} |
553 |
> |
} |
554 |
> |
|
555 |
> |
|
556 |
> |
/** |
557 |
> |
* hasWaiters throws IAE if not owned |
558 |
> |
*/ |
559 |
> |
public void testHasWaitersIAE() { |
560 |
> |
final ReentrantLock lock = new ReentrantLock(); |
561 |
> |
final Condition c = (lock.newCondition()); |
562 |
> |
final ReentrantLock lock2 = new ReentrantLock(); |
563 |
> |
try { |
564 |
> |
lock2.hasWaiters(c); |
565 |
> |
shouldThrow(); |
566 |
> |
} catch (IllegalArgumentException success) { |
567 |
> |
} catch (Exception ex) { |
568 |
> |
unexpectedException(); |
569 |
> |
} |
570 |
> |
} |
571 |
> |
|
572 |
> |
/** |
573 |
> |
* hasWaiters throws IMSE if not locked |
574 |
> |
*/ |
575 |
> |
public void testHasWaitersIMSE() { |
576 |
> |
final ReentrantLock lock = new ReentrantLock(); |
577 |
> |
final Condition c = (lock.newCondition()); |
578 |
> |
try { |
579 |
> |
lock.hasWaiters(c); |
580 |
> |
shouldThrow(); |
581 |
> |
} catch (IllegalMonitorStateException success) { |
582 |
> |
} catch (Exception ex) { |
583 |
> |
unexpectedException(); |
584 |
> |
} |
585 |
> |
} |
586 |
> |
|
587 |
> |
|
588 |
> |
/** |
589 |
> |
* getWaitQueueLength throws IAE if not owned |
590 |
> |
*/ |
591 |
> |
public void testGetWaitQueueLengthIAE() { |
592 |
> |
final ReentrantLock lock = new ReentrantLock(); |
593 |
> |
final Condition c = (lock.newCondition()); |
594 |
> |
final ReentrantLock lock2 = new ReentrantLock(); |
595 |
> |
try { |
596 |
> |
lock2.getWaitQueueLength(c); |
597 |
> |
shouldThrow(); |
598 |
> |
} catch (IllegalArgumentException success) { |
599 |
> |
} catch (Exception ex) { |
600 |
> |
unexpectedException(); |
601 |
> |
} |
602 |
> |
} |
603 |
> |
|
604 |
> |
/** |
605 |
> |
* getWaitQueueLength throws IMSE if not locked |
606 |
> |
*/ |
607 |
> |
public void testGetWaitQueueLengthIMSE() { |
608 |
> |
final ReentrantLock lock = new ReentrantLock(); |
609 |
> |
final Condition c = (lock.newCondition()); |
610 |
> |
try { |
611 |
> |
lock.getWaitQueueLength(c); |
612 |
> |
shouldThrow(); |
613 |
> |
} catch (IllegalMonitorStateException success) { |
614 |
> |
} catch (Exception ex) { |
615 |
> |
unexpectedException(); |
616 |
> |
} |
617 |
> |
} |
618 |
> |
|
619 |
> |
|
620 |
> |
/** |
621 |
> |
* getWaitingThreads throws IAE if not owned |
622 |
> |
*/ |
623 |
> |
public void testGetWaitingThreadsIAE() { |
624 |
> |
final PublicReentrantLock lock = new PublicReentrantLock(); |
625 |
> |
final Condition c = (lock.newCondition()); |
626 |
> |
final PublicReentrantLock lock2 = new PublicReentrantLock(); |
627 |
> |
try { |
628 |
> |
lock2.getWaitingThreads(c); |
629 |
> |
shouldThrow(); |
630 |
> |
} catch (IllegalArgumentException success) { |
631 |
> |
} catch (Exception ex) { |
632 |
> |
unexpectedException(); |
633 |
> |
} |
634 |
> |
} |
635 |
> |
|
636 |
> |
/** |
637 |
> |
* getWaitingThreads throws IMSE if not locked |
638 |
> |
*/ |
639 |
> |
public void testGetWaitingThreadsIMSE() { |
640 |
> |
final PublicReentrantLock lock = new PublicReentrantLock(); |
641 |
> |
final Condition c = (lock.newCondition()); |
642 |
> |
try { |
643 |
> |
lock.getWaitingThreads(c); |
644 |
> |
shouldThrow(); |
645 |
> |
} catch (IllegalMonitorStateException success) { |
646 |
> |
} catch (Exception ex) { |
647 |
> |
unexpectedException(); |
648 |
> |
} |
649 |
> |
} |
650 |
> |
|
651 |
> |
|
652 |
> |
|
653 |
> |
/** |
654 |
> |
* hasWaiters returns true when a thread is waiting, else false |
655 |
> |
*/ |
656 |
> |
public void testHasWaiters() { |
657 |
> |
final ReentrantLock lock = new ReentrantLock(); |
658 |
> |
final Condition c = lock.newCondition(); |
659 |
> |
Thread t = new Thread(new Runnable() { |
660 |
> |
public void run() { |
661 |
> |
try { |
662 |
> |
lock.lock(); |
663 |
> |
threadAssertFalse(lock.hasWaiters(c)); |
664 |
> |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
665 |
> |
c.await(); |
666 |
> |
lock.unlock(); |
667 |
> |
} |
668 |
> |
catch(InterruptedException e) { |
669 |
> |
threadUnexpectedException(); |
670 |
|
} |
671 |
|
} |
672 |
|
}); |
675 |
|
t.start(); |
676 |
|
Thread.sleep(SHORT_DELAY_MS); |
677 |
|
lock.lock(); |
678 |
+ |
assertTrue(lock.hasWaiters(c)); |
679 |
+ |
assertEquals(1, lock.getWaitQueueLength(c)); |
680 |
|
c.signal(); |
681 |
|
lock.unlock(); |
682 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
683 |
+ |
lock.lock(); |
684 |
+ |
assertFalse(lock.hasWaiters(c)); |
685 |
+ |
assertEquals(0, lock.getWaitQueueLength(c)); |
686 |
+ |
lock.unlock(); |
687 |
|
t.join(SHORT_DELAY_MS); |
688 |
|
assertFalse(t.isAlive()); |
689 |
|
} |
690 |
|
catch (Exception ex) { |
691 |
< |
fail("unexpected exception"); |
691 |
> |
unexpectedException(); |
692 |
|
} |
693 |
|
} |
694 |
|
|
695 |
+ |
/** |
696 |
+ |
* getWaitQueueLength returns number of waiting threads |
697 |
+ |
*/ |
698 |
+ |
public void testGetWaitQueueLength() { |
699 |
+ |
final ReentrantLock lock = new ReentrantLock(); |
700 |
+ |
final Condition c = lock.newCondition(); |
701 |
+ |
Thread t1 = new Thread(new Runnable() { |
702 |
+ |
public void run() { |
703 |
+ |
try { |
704 |
+ |
lock.lock(); |
705 |
+ |
threadAssertFalse(lock.hasWaiters(c)); |
706 |
+ |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
707 |
+ |
c.await(); |
708 |
+ |
lock.unlock(); |
709 |
+ |
} |
710 |
+ |
catch(InterruptedException e) { |
711 |
+ |
threadUnexpectedException(); |
712 |
+ |
} |
713 |
+ |
} |
714 |
+ |
}); |
715 |
+ |
|
716 |
+ |
Thread t2 = new Thread(new Runnable() { |
717 |
+ |
public void run() { |
718 |
+ |
try { |
719 |
+ |
lock.lock(); |
720 |
+ |
threadAssertTrue(lock.hasWaiters(c)); |
721 |
+ |
threadAssertEquals(1, lock.getWaitQueueLength(c)); |
722 |
+ |
c.await(); |
723 |
+ |
lock.unlock(); |
724 |
+ |
} |
725 |
+ |
catch(InterruptedException e) { |
726 |
+ |
threadUnexpectedException(); |
727 |
+ |
} |
728 |
+ |
} |
729 |
+ |
}); |
730 |
+ |
|
731 |
+ |
try { |
732 |
+ |
t1.start(); |
733 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
734 |
+ |
t2.start(); |
735 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
736 |
+ |
lock.lock(); |
737 |
+ |
assertTrue(lock.hasWaiters(c)); |
738 |
+ |
assertEquals(2, lock.getWaitQueueLength(c)); |
739 |
+ |
c.signalAll(); |
740 |
+ |
lock.unlock(); |
741 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
742 |
+ |
lock.lock(); |
743 |
+ |
assertFalse(lock.hasWaiters(c)); |
744 |
+ |
assertEquals(0, lock.getWaitQueueLength(c)); |
745 |
+ |
lock.unlock(); |
746 |
+ |
t1.join(SHORT_DELAY_MS); |
747 |
+ |
t2.join(SHORT_DELAY_MS); |
748 |
+ |
assertFalse(t1.isAlive()); |
749 |
+ |
assertFalse(t2.isAlive()); |
750 |
+ |
} |
751 |
+ |
catch (Exception ex) { |
752 |
+ |
unexpectedException(); |
753 |
+ |
} |
754 |
+ |
} |
755 |
+ |
|
756 |
+ |
/** |
757 |
+ |
* getWaitingThreads returns only and all waiting threads |
758 |
+ |
*/ |
759 |
+ |
public void testGetWaitingThreads() { |
760 |
+ |
final PublicReentrantLock lock = new PublicReentrantLock(); |
761 |
+ |
final Condition c = lock.newCondition(); |
762 |
+ |
Thread t1 = new Thread(new Runnable() { |
763 |
+ |
public void run() { |
764 |
+ |
try { |
765 |
+ |
lock.lock(); |
766 |
+ |
threadAssertTrue(lock.getWaitingThreads(c).isEmpty()); |
767 |
+ |
c.await(); |
768 |
+ |
lock.unlock(); |
769 |
+ |
} |
770 |
+ |
catch(InterruptedException e) { |
771 |
+ |
threadUnexpectedException(); |
772 |
+ |
} |
773 |
+ |
} |
774 |
+ |
}); |
775 |
+ |
|
776 |
+ |
Thread t2 = new Thread(new Runnable() { |
777 |
+ |
public void run() { |
778 |
+ |
try { |
779 |
+ |
lock.lock(); |
780 |
+ |
threadAssertFalse(lock.getWaitingThreads(c).isEmpty()); |
781 |
+ |
c.await(); |
782 |
+ |
lock.unlock(); |
783 |
+ |
} |
784 |
+ |
catch(InterruptedException e) { |
785 |
+ |
threadUnexpectedException(); |
786 |
+ |
} |
787 |
+ |
} |
788 |
+ |
}); |
789 |
+ |
|
790 |
+ |
try { |
791 |
+ |
lock.lock(); |
792 |
+ |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
793 |
+ |
lock.unlock(); |
794 |
+ |
t1.start(); |
795 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
796 |
+ |
t2.start(); |
797 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
798 |
+ |
lock.lock(); |
799 |
+ |
assertTrue(lock.hasWaiters(c)); |
800 |
+ |
assertTrue(lock.getWaitingThreads(c).contains(t1)); |
801 |
+ |
assertTrue(lock.getWaitingThreads(c).contains(t2)); |
802 |
+ |
c.signalAll(); |
803 |
+ |
lock.unlock(); |
804 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
805 |
+ |
lock.lock(); |
806 |
+ |
assertFalse(lock.hasWaiters(c)); |
807 |
+ |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
808 |
+ |
lock.unlock(); |
809 |
+ |
t1.join(SHORT_DELAY_MS); |
810 |
+ |
t2.join(SHORT_DELAY_MS); |
811 |
+ |
assertFalse(t1.isAlive()); |
812 |
+ |
assertFalse(t2.isAlive()); |
813 |
+ |
} |
814 |
+ |
catch (Exception ex) { |
815 |
+ |
unexpectedException(); |
816 |
+ |
} |
817 |
+ |
} |
818 |
+ |
|
819 |
+ |
|
820 |
+ |
|
821 |
+ |
/** |
822 |
+ |
* awaitUninterruptibly doesn't abort on interrupt |
823 |
+ |
*/ |
824 |
|
public void testAwaitUninterruptibly() { |
825 |
|
final ReentrantLock lock = new ReentrantLock(); |
826 |
|
final Condition c = lock.newCondition(); |
839 |
|
lock.lock(); |
840 |
|
c.signal(); |
841 |
|
lock.unlock(); |
842 |
+ |
assert(t.isInterrupted()); |
843 |
|
t.join(SHORT_DELAY_MS); |
844 |
|
assertFalse(t.isAlive()); |
845 |
|
} |
846 |
|
catch (Exception ex) { |
847 |
< |
fail("unexpected exception"); |
847 |
> |
unexpectedException(); |
848 |
|
} |
849 |
|
} |
850 |
|
|
851 |
+ |
/** |
852 |
+ |
* await is interruptible |
853 |
+ |
*/ |
854 |
|
public void testAwait_Interrupt() { |
855 |
|
final ReentrantLock lock = new ReentrantLock(); |
856 |
|
final Condition c = lock.newCondition(); |
860 |
|
lock.lock(); |
861 |
|
c.await(); |
862 |
|
lock.unlock(); |
863 |
< |
threadFail("should throw"); |
863 |
> |
threadShouldThrow(); |
864 |
|
} |
865 |
|
catch(InterruptedException success) { |
866 |
|
} |
875 |
|
assertFalse(t.isAlive()); |
876 |
|
} |
877 |
|
catch (Exception ex) { |
878 |
< |
fail("unexpected exception"); |
878 |
> |
unexpectedException(); |
879 |
|
} |
880 |
|
} |
881 |
|
|
882 |
+ |
/** |
883 |
+ |
* awaitNanos is interruptible |
884 |
+ |
*/ |
885 |
|
public void testAwaitNanos_Interrupt() { |
886 |
|
final ReentrantLock lock = new ReentrantLock(); |
887 |
|
final Condition c = lock.newCondition(); |
891 |
|
lock.lock(); |
892 |
|
c.awaitNanos(SHORT_DELAY_MS * 2 * 1000000); |
893 |
|
lock.unlock(); |
894 |
< |
threadFail("should throw"); |
894 |
> |
threadShouldThrow(); |
895 |
|
} |
896 |
|
catch(InterruptedException success) { |
897 |
|
} |
906 |
|
assertFalse(t.isAlive()); |
907 |
|
} |
908 |
|
catch (Exception ex) { |
909 |
< |
fail("unexpected exception"); |
909 |
> |
unexpectedException(); |
910 |
|
} |
911 |
|
} |
912 |
|
|
913 |
+ |
/** |
914 |
+ |
* awaitUntil is interruptible |
915 |
+ |
*/ |
916 |
|
public void testAwaitUntil_Interrupt() { |
917 |
|
final ReentrantLock lock = new ReentrantLock(); |
918 |
|
final Condition c = lock.newCondition(); |
923 |
|
java.util.Date d = new java.util.Date(); |
924 |
|
c.awaitUntil(new java.util.Date(d.getTime() + 10000)); |
925 |
|
lock.unlock(); |
926 |
< |
threadFail("should throw"); |
926 |
> |
threadShouldThrow(); |
927 |
|
} |
928 |
|
catch(InterruptedException success) { |
929 |
|
} |
938 |
|
assertFalse(t.isAlive()); |
939 |
|
} |
940 |
|
catch (Exception ex) { |
941 |
< |
fail("unexpected exception"); |
941 |
> |
unexpectedException(); |
942 |
|
} |
943 |
|
} |
944 |
|
|
945 |
+ |
/** |
946 |
+ |
* signalAll wakes up all threads |
947 |
+ |
*/ |
948 |
|
public void testSignalAll() { |
949 |
|
final ReentrantLock lock = new ReentrantLock(); |
950 |
|
final Condition c = lock.newCondition(); |
956 |
|
lock.unlock(); |
957 |
|
} |
958 |
|
catch(InterruptedException e) { |
959 |
< |
threadFail("unexpected exception"); |
959 |
> |
threadUnexpectedException(); |
960 |
|
} |
961 |
|
} |
962 |
|
}); |
969 |
|
lock.unlock(); |
970 |
|
} |
971 |
|
catch(InterruptedException e) { |
972 |
< |
threadFail("unexpected exception"); |
972 |
> |
threadUnexpectedException(); |
973 |
|
} |
974 |
|
} |
975 |
|
}); |
987 |
|
assertFalse(t2.isAlive()); |
988 |
|
} |
989 |
|
catch (Exception ex) { |
990 |
< |
fail("unexpected exception"); |
990 |
> |
unexpectedException(); |
991 |
|
} |
992 |
|
} |
993 |
|
|
994 |
+ |
/** |
995 |
+ |
* A serialized lock deserializes as unlocked |
996 |
+ |
*/ |
997 |
|
public void testSerialization() { |
998 |
|
ReentrantLock l = new ReentrantLock(); |
999 |
|
l.lock(); |
1012 |
|
r.unlock(); |
1013 |
|
} catch(Exception e){ |
1014 |
|
e.printStackTrace(); |
1015 |
< |
fail("unexpected exception"); |
1015 |
> |
unexpectedException(); |
1016 |
|
} |
1017 |
|
} |
1018 |
|
|