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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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return new TestSuite(ReentrantLockTest.class); |
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} |
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|
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static int HOLD_COUNT_TEST_LIMIT = 20; |
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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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> |
public void run() { |
30 |
> |
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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// Same, except must interrupt |
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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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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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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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* To expose protected methods |
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* Subclass to expose protected methods |
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*/ |
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static class MyReentrantLock extends ReentrantLock { |
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MyReentrantLock() { super(); } |
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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 ConditionObject newCondition() { |
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return new MyCondition(this); |
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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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static class MyCondition extends ReentrantLock.ConditionObject { |
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MyCondition(MyReentrantLock l) { super(l); } |
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public Collection<Thread> getWaitingThreads() { |
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return super.getWaitingThreads(); |
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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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/** |
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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 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 testIllegalMonitorStateException(){ |
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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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* lockInterruptibly is interruptible. |
109 |
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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(); |
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assertTrue(rl.tryLock()); |
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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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/** |
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* hasQueuedThreads reports whether there are waiting threads |
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*/ |
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public void testInterruptedException(){ |
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public void testhasQueuedThreads() { |
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final ReentrantLock lock = new ReentrantLock(); |
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lock.lock(); |
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Thread t = new Thread(new InterruptedLockRunnable(lock)); |
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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(); |
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t.interrupt(); |
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> |
assertFalse(lock.hasQueuedThreads()); |
129 |
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lock.lock(); |
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t1.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
132 |
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assertTrue(lock.hasQueuedThreads()); |
133 |
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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); |
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assertTrue(lock.hasQueuedThreads()); |
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lock.unlock(); |
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t.join(); |
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Thread.sleep(SHORT_DELAY_MS); |
141 |
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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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fail("unexpected exception"); |
145 |
> |
unexpectedException(); |
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} |
147 |
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} |
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|
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/* |
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* getLockQueueLength reports number of waiting threads |
149 |
> |
/** |
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> |
* getQueueLength reports number of waiting threads |
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*/ |
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public void testgetLockQueueLength(){ |
152 |
> |
public void testGetQueueLength() { |
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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)); |
156 |
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try { |
157 |
< |
assertEquals(0, lock.getLockQueueLength()); |
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 |
> |
Thread.sleep(SHORT_DELAY_MS); |
170 |
> |
assertEquals(0, lock.getQueueLength()); |
171 |
> |
t1.join(); |
172 |
> |
t2.join(); |
173 |
> |
} catch(Exception e){ |
174 |
> |
unexpectedException(); |
175 |
> |
} |
176 |
> |
} |
177 |
> |
|
178 |
> |
/** |
179 |
> |
* getQueueLength reports number of waiting threads |
180 |
> |
*/ |
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.getLockQueueLength()); |
190 |
> |
assertEquals(1, lock.getQueueLength()); |
191 |
|
t2.start(); |
192 |
|
Thread.sleep(SHORT_DELAY_MS); |
193 |
< |
assertEquals(2, lock.getLockQueueLength()); |
193 |
> |
assertEquals(2, lock.getQueueLength()); |
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t1.interrupt(); |
195 |
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Thread.sleep(SHORT_DELAY_MS); |
196 |
< |
assertEquals(1, lock.getLockQueueLength()); |
196 |
> |
assertEquals(1, lock.getQueueLength()); |
197 |
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lock.unlock(); |
198 |
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Thread.sleep(SHORT_DELAY_MS); |
199 |
< |
assertEquals(0, lock.getLockQueueLength()); |
199 |
> |
assertEquals(0, lock.getQueueLength()); |
200 |
> |
t1.join(); |
201 |
> |
t2.join(); |
202 |
> |
} catch(Exception e){ |
203 |
> |
unexpectedException(); |
204 |
> |
} |
205 |
> |
} |
206 |
> |
|
207 |
> |
/** |
208 |
> |
* hasQueuedThread(null) throws NPE |
209 |
> |
*/ |
210 |
> |
public void testHasQueuedThreadNPE() { |
211 |
> |
final ReentrantLock sync = new ReentrantLock(); |
212 |
> |
try { |
213 |
> |
sync.hasQueuedThread(null); |
214 |
> |
shouldThrow(); |
215 |
> |
} catch (NullPointerException success) { |
216 |
> |
} |
217 |
> |
} |
218 |
> |
|
219 |
> |
/** |
220 |
> |
* hasQueuedThread reports whether a thread is queued. |
221 |
> |
*/ |
222 |
> |
public void testHasQueuedThread() { |
223 |
> |
final ReentrantLock sync = new ReentrantLock(); |
224 |
> |
Thread t1 = new Thread(new InterruptedLockRunnable(sync)); |
225 |
> |
Thread t2 = new Thread(new InterruptibleLockRunnable(sync)); |
226 |
> |
try { |
227 |
> |
assertFalse(sync.hasQueuedThread(t1)); |
228 |
> |
assertFalse(sync.hasQueuedThread(t2)); |
229 |
> |
sync.lock(); |
230 |
> |
t1.start(); |
231 |
> |
Thread.sleep(SHORT_DELAY_MS); |
232 |
> |
assertTrue(sync.hasQueuedThread(t1)); |
233 |
> |
t2.start(); |
234 |
> |
Thread.sleep(SHORT_DELAY_MS); |
235 |
> |
assertTrue(sync.hasQueuedThread(t1)); |
236 |
> |
assertTrue(sync.hasQueuedThread(t2)); |
237 |
> |
t1.interrupt(); |
238 |
> |
Thread.sleep(SHORT_DELAY_MS); |
239 |
> |
assertFalse(sync.hasQueuedThread(t1)); |
240 |
> |
assertTrue(sync.hasQueuedThread(t2)); |
241 |
> |
sync.unlock(); |
242 |
> |
Thread.sleep(SHORT_DELAY_MS); |
243 |
> |
assertFalse(sync.hasQueuedThread(t1)); |
244 |
> |
Thread.sleep(SHORT_DELAY_MS); |
245 |
> |
assertFalse(sync.hasQueuedThread(t2)); |
246 |
|
t1.join(); |
247 |
|
t2.join(); |
248 |
|
} catch(Exception e){ |
249 |
< |
fail("unexpected exception"); |
249 |
> |
unexpectedException(); |
250 |
|
} |
251 |
|
} |
252 |
|
|
253 |
< |
/* |
253 |
> |
|
254 |
> |
/** |
255 |
|
* getQueuedThreads includes waiting threads |
256 |
|
*/ |
257 |
< |
public void testGetQueuedThreads(){ |
258 |
< |
final MyReentrantLock lock = new MyReentrantLock(); |
257 |
> |
public void testGetQueuedThreads() { |
258 |
> |
final PublicReentrantLock lock = new PublicReentrantLock(); |
259 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
260 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
261 |
|
try { |
279 |
|
t1.join(); |
280 |
|
t2.join(); |
281 |
|
} catch(Exception e){ |
282 |
< |
fail("unexpected exception"); |
282 |
> |
unexpectedException(); |
283 |
|
} |
284 |
|
} |
285 |
|
|
286 |
|
|
287 |
< |
/* |
288 |
< |
* timed trylock is interruptible. |
287 |
> |
/** |
288 |
> |
* timed tryLock is interruptible. |
289 |
|
*/ |
290 |
< |
public void testInterruptedException2(){ |
290 |
> |
public void testInterruptedException2() { |
291 |
|
final ReentrantLock lock = new ReentrantLock(); |
292 |
|
lock.lock(); |
293 |
|
Thread t = new Thread(new Runnable() { |
294 |
< |
public void run(){ |
295 |
< |
try{ |
294 |
> |
public void run() { |
295 |
> |
try { |
296 |
|
lock.tryLock(MEDIUM_DELAY_MS,TimeUnit.MILLISECONDS); |
297 |
< |
threadFail("should throw"); |
297 |
> |
threadShouldThrow(); |
298 |
|
} catch(InterruptedException success){} |
299 |
|
} |
300 |
|
}); |
302 |
|
t.start(); |
303 |
|
t.interrupt(); |
304 |
|
} catch(Exception e){ |
305 |
< |
fail("unexpected exception"); |
305 |
> |
unexpectedException(); |
306 |
|
} |
307 |
|
} |
308 |
|
|
309 |
|
|
310 |
|
/** |
311 |
< |
* Trylock on a locked lock fails |
311 |
> |
* TryLock on a locked lock fails |
312 |
|
*/ |
313 |
|
public void testTryLockWhenLocked() { |
314 |
|
final ReentrantLock lock = new ReentrantLock(); |
315 |
|
lock.lock(); |
316 |
|
Thread t = new Thread(new Runnable() { |
317 |
< |
public void run(){ |
317 |
> |
public void run() { |
318 |
|
threadAssertFalse(lock.tryLock()); |
319 |
|
} |
320 |
|
}); |
323 |
|
t.join(); |
324 |
|
lock.unlock(); |
325 |
|
} catch(Exception e){ |
326 |
< |
fail("unexpected exception"); |
326 |
> |
unexpectedException(); |
327 |
|
} |
328 |
|
} |
329 |
|
|
330 |
|
/** |
331 |
< |
* Timed Trylock on a locked lock times out |
331 |
> |
* Timed tryLock on a locked lock times out |
332 |
|
*/ |
333 |
< |
public void testTryLock_Timeout(){ |
333 |
> |
public void testTryLock_Timeout() { |
334 |
|
final ReentrantLock lock = new ReentrantLock(); |
335 |
|
lock.lock(); |
336 |
|
Thread t = new Thread(new Runnable() { |
337 |
< |
public void run(){ |
337 |
> |
public void run() { |
338 |
|
try { |
339 |
|
threadAssertFalse(lock.tryLock(1, TimeUnit.MILLISECONDS)); |
340 |
|
} catch (Exception ex) { |
341 |
< |
threadFail("unexpected exception"); |
341 |
> |
threadUnexpectedException(); |
342 |
|
} |
343 |
|
} |
344 |
|
}); |
347 |
|
t.join(); |
348 |
|
lock.unlock(); |
349 |
|
} catch(Exception e){ |
350 |
< |
fail("unexpected exception"); |
350 |
> |
unexpectedException(); |
351 |
|
} |
352 |
|
} |
353 |
|
|
356 |
|
*/ |
357 |
|
public void testGetHoldCount() { |
358 |
|
ReentrantLock lock = new ReentrantLock(); |
359 |
< |
for(int i = 1; i <= ReentrantLockTest.HOLD_COUNT_TEST_LIMIT;i++) { |
359 |
> |
for(int i = 1; i <= SIZE; i++) { |
360 |
|
lock.lock(); |
361 |
|
assertEquals(i,lock.getHoldCount()); |
362 |
|
} |
363 |
< |
for(int i = ReentrantLockTest.HOLD_COUNT_TEST_LIMIT; i > 0; i--) { |
363 |
> |
for(int i = SIZE; i > 0; i--) { |
364 |
|
lock.unlock(); |
365 |
|
assertEquals(i-1,lock.getHoldCount()); |
366 |
|
} |
383 |
|
Thread.sleep(SMALL_DELAY_MS); |
384 |
|
} |
385 |
|
catch(Exception e) { |
386 |
< |
threadFail("unexpected exception"); |
386 |
> |
threadUnexpectedException(); |
387 |
|
} |
388 |
|
lock.unlock(); |
389 |
|
} |
390 |
|
}); |
391 |
< |
try{ |
391 |
> |
try { |
392 |
|
t.start(); |
393 |
|
Thread.sleep(SHORT_DELAY_MS); |
394 |
|
assertTrue(lock.isLocked()); |
395 |
|
t.join(); |
396 |
|
assertFalse(lock.isLocked()); |
397 |
|
} catch(Exception e){ |
398 |
< |
fail("unexpected exception"); |
398 |
> |
unexpectedException(); |
399 |
|
} |
400 |
|
} |
401 |
|
|
402 |
|
|
403 |
|
/** |
404 |
+ |
* lockInterruptibly is interruptible. |
405 |
+ |
*/ |
406 |
+ |
public void testLockInterruptibly1() { |
407 |
+ |
final ReentrantLock lock = new ReentrantLock(); |
408 |
+ |
lock.lock(); |
409 |
+ |
Thread t = new Thread(new InterruptedLockRunnable(lock)); |
410 |
+ |
try { |
411 |
+ |
t.start(); |
412 |
+ |
t.interrupt(); |
413 |
+ |
lock.unlock(); |
414 |
+ |
t.join(); |
415 |
+ |
} catch(Exception e){ |
416 |
+ |
unexpectedException(); |
417 |
+ |
} |
418 |
+ |
} |
419 |
+ |
|
420 |
+ |
/** |
421 |
|
* lockInterruptibly succeeds when unlocked, else is interruptible |
422 |
|
*/ |
423 |
< |
public void testLockInterruptibly() { |
423 |
> |
public void testLockInterruptibly2() { |
424 |
|
final ReentrantLock lock = new ReentrantLock(); |
425 |
|
try { |
426 |
|
lock.lockInterruptibly(); |
427 |
|
} catch(Exception e) { |
428 |
< |
fail("unexpected exception"); |
428 |
> |
unexpectedException(); |
429 |
|
} |
430 |
|
Thread t = new Thread(new InterruptedLockRunnable(lock)); |
431 |
|
try { |
435 |
|
assertTrue(lock.isHeldByCurrentThread()); |
436 |
|
t.join(); |
437 |
|
} catch(Exception e){ |
438 |
< |
fail("unexpected exception"); |
438 |
> |
unexpectedException(); |
439 |
|
} |
440 |
|
} |
441 |
|
|
442 |
+ |
/** |
443 |
+ |
* Calling await without holding lock throws IllegalMonitorStateException |
444 |
+ |
*/ |
445 |
|
public void testAwait_IllegalMonitor() { |
446 |
|
final ReentrantLock lock = new ReentrantLock(); |
447 |
|
final Condition c = lock.newCondition(); |
448 |
|
try { |
449 |
|
c.await(); |
450 |
< |
fail("should throw"); |
450 |
> |
shouldThrow(); |
451 |
|
} |
452 |
|
catch (IllegalMonitorStateException success) { |
453 |
|
} |
454 |
|
catch (Exception ex) { |
455 |
< |
fail("should throw IMSE"); |
455 |
> |
unexpectedException(); |
456 |
|
} |
457 |
|
} |
458 |
|
|
459 |
+ |
/** |
460 |
+ |
* Calling signal without holding lock throws IllegalMonitorStateException |
461 |
+ |
*/ |
462 |
|
public void testSignal_IllegalMonitor() { |
463 |
|
final ReentrantLock lock = new ReentrantLock(); |
464 |
|
final Condition c = lock.newCondition(); |
465 |
|
try { |
466 |
|
c.signal(); |
467 |
< |
fail("should throw"); |
467 |
> |
shouldThrow(); |
468 |
|
} |
469 |
|
catch (IllegalMonitorStateException success) { |
470 |
|
} |
471 |
|
catch (Exception ex) { |
472 |
< |
fail("should throw IMSE"); |
472 |
> |
unexpectedException(); |
473 |
|
} |
474 |
|
} |
475 |
|
|
476 |
+ |
/** |
477 |
+ |
* awaitNanos without a signal times out |
478 |
+ |
*/ |
479 |
|
public void testAwaitNanos_Timeout() { |
480 |
|
final ReentrantLock lock = new ReentrantLock(); |
481 |
|
final Condition c = lock.newCondition(); |
486 |
|
lock.unlock(); |
487 |
|
} |
488 |
|
catch (Exception ex) { |
489 |
< |
fail("unexpected exception"); |
489 |
> |
unexpectedException(); |
490 |
|
} |
491 |
|
} |
492 |
|
|
493 |
+ |
/** |
494 |
+ |
* timed await without a signal times out |
495 |
+ |
*/ |
496 |
|
public void testAwait_Timeout() { |
497 |
|
final ReentrantLock lock = new ReentrantLock(); |
498 |
|
final Condition c = lock.newCondition(); |
499 |
|
try { |
500 |
|
lock.lock(); |
501 |
< |
assertFalse(c.await(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
501 |
> |
c.await(SHORT_DELAY_MS, TimeUnit.MILLISECONDS); |
502 |
|
lock.unlock(); |
503 |
|
} |
504 |
|
catch (Exception ex) { |
505 |
< |
fail("unexpected exception"); |
505 |
> |
unexpectedException(); |
506 |
|
} |
507 |
|
} |
508 |
|
|
509 |
+ |
/** |
510 |
+ |
* awaitUntil without a signal times out |
511 |
+ |
*/ |
512 |
|
public void testAwaitUntil_Timeout() { |
513 |
|
final ReentrantLock lock = new ReentrantLock(); |
514 |
|
final Condition c = lock.newCondition(); |
515 |
|
try { |
516 |
|
lock.lock(); |
517 |
|
java.util.Date d = new java.util.Date(); |
518 |
< |
assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10))); |
518 |
> |
c.awaitUntil(new java.util.Date(d.getTime() + 10)); |
519 |
|
lock.unlock(); |
520 |
|
} |
521 |
|
catch (Exception ex) { |
522 |
< |
fail("unexpected exception"); |
522 |
> |
unexpectedException(); |
523 |
|
} |
524 |
|
} |
525 |
|
|
526 |
+ |
/** |
527 |
+ |
* await returns when signalled |
528 |
+ |
*/ |
529 |
|
public void testAwait() { |
530 |
|
final ReentrantLock lock = new ReentrantLock(); |
531 |
< |
final ReentrantLock.ConditionObject c = lock.newCondition(); |
531 |
> |
final Condition c = lock.newCondition(); |
532 |
|
Thread t = new Thread(new Runnable() { |
533 |
|
public void run() { |
534 |
|
try { |
537 |
|
lock.unlock(); |
538 |
|
} |
539 |
|
catch(InterruptedException e) { |
540 |
< |
threadFail("unexpected exception"); |
540 |
> |
threadUnexpectedException(); |
541 |
|
} |
542 |
|
} |
543 |
|
}); |
552 |
|
assertFalse(t.isAlive()); |
553 |
|
} |
554 |
|
catch (Exception ex) { |
555 |
< |
fail("unexpected exception"); |
555 |
> |
unexpectedException(); |
556 |
> |
} |
557 |
> |
} |
558 |
> |
|
559 |
> |
/** |
560 |
> |
* hasWaiters throws NPE if null |
561 |
> |
*/ |
562 |
> |
public void testHasWaitersNPE() { |
563 |
> |
final ReentrantLock lock = new ReentrantLock(); |
564 |
> |
try { |
565 |
> |
lock.hasWaiters(null); |
566 |
> |
shouldThrow(); |
567 |
> |
} catch (NullPointerException success) { |
568 |
> |
} catch (Exception ex) { |
569 |
> |
unexpectedException(); |
570 |
> |
} |
571 |
> |
} |
572 |
> |
|
573 |
> |
/** |
574 |
> |
* getWaitQueueLength throws NPE if null |
575 |
> |
*/ |
576 |
> |
public void testGetWaitQueueLengthNPE() { |
577 |
> |
final ReentrantLock lock = new ReentrantLock(); |
578 |
> |
try { |
579 |
> |
lock.getWaitQueueLength(null); |
580 |
> |
shouldThrow(); |
581 |
> |
} catch (NullPointerException success) { |
582 |
> |
} catch (Exception ex) { |
583 |
> |
unexpectedException(); |
584 |
> |
} |
585 |
> |
} |
586 |
> |
|
587 |
> |
|
588 |
> |
/** |
589 |
> |
* getWaitingThreads throws NPE if null |
590 |
> |
*/ |
591 |
> |
public void testGetWaitingThreadsNPE() { |
592 |
> |
final PublicReentrantLock lock = new PublicReentrantLock(); |
593 |
> |
try { |
594 |
> |
lock.getWaitingThreads(null); |
595 |
> |
shouldThrow(); |
596 |
> |
} catch (NullPointerException success) { |
597 |
> |
} catch (Exception ex) { |
598 |
> |
unexpectedException(); |
599 |
> |
} |
600 |
> |
} |
601 |
> |
|
602 |
> |
|
603 |
> |
/** |
604 |
> |
* hasWaiters throws IAE if not owned |
605 |
> |
*/ |
606 |
> |
public void testHasWaitersIAE() { |
607 |
> |
final ReentrantLock lock = new ReentrantLock(); |
608 |
> |
final Condition c = (lock.newCondition()); |
609 |
> |
final ReentrantLock lock2 = new ReentrantLock(); |
610 |
> |
try { |
611 |
> |
lock2.hasWaiters(c); |
612 |
> |
shouldThrow(); |
613 |
> |
} catch (IllegalArgumentException success) { |
614 |
> |
} catch (Exception ex) { |
615 |
> |
unexpectedException(); |
616 |
> |
} |
617 |
> |
} |
618 |
> |
|
619 |
> |
/** |
620 |
> |
* hasWaiters throws IMSE if not locked |
621 |
> |
*/ |
622 |
> |
public void testHasWaitersIMSE() { |
623 |
> |
final ReentrantLock lock = new ReentrantLock(); |
624 |
> |
final Condition c = (lock.newCondition()); |
625 |
> |
try { |
626 |
> |
lock.hasWaiters(c); |
627 |
> |
shouldThrow(); |
628 |
> |
} catch (IllegalMonitorStateException success) { |
629 |
> |
} catch (Exception ex) { |
630 |
> |
unexpectedException(); |
631 |
> |
} |
632 |
> |
} |
633 |
> |
|
634 |
> |
|
635 |
> |
/** |
636 |
> |
* getWaitQueueLength throws IAE if not owned |
637 |
> |
*/ |
638 |
> |
public void testGetWaitQueueLengthIAE() { |
639 |
> |
final ReentrantLock lock = new ReentrantLock(); |
640 |
> |
final Condition c = (lock.newCondition()); |
641 |
> |
final ReentrantLock lock2 = new ReentrantLock(); |
642 |
> |
try { |
643 |
> |
lock2.getWaitQueueLength(c); |
644 |
> |
shouldThrow(); |
645 |
> |
} catch (IllegalArgumentException success) { |
646 |
> |
} catch (Exception ex) { |
647 |
> |
unexpectedException(); |
648 |
|
} |
649 |
|
} |
650 |
|
|
651 |
+ |
/** |
652 |
+ |
* getWaitQueueLength throws IMSE if not locked |
653 |
+ |
*/ |
654 |
+ |
public void testGetWaitQueueLengthIMSE() { |
655 |
+ |
final ReentrantLock lock = new ReentrantLock(); |
656 |
+ |
final Condition c = (lock.newCondition()); |
657 |
+ |
try { |
658 |
+ |
lock.getWaitQueueLength(c); |
659 |
+ |
shouldThrow(); |
660 |
+ |
} catch (IllegalMonitorStateException success) { |
661 |
+ |
} catch (Exception ex) { |
662 |
+ |
unexpectedException(); |
663 |
+ |
} |
664 |
+ |
} |
665 |
+ |
|
666 |
+ |
|
667 |
+ |
/** |
668 |
+ |
* getWaitingThreads throws IAE if not owned |
669 |
+ |
*/ |
670 |
+ |
public void testGetWaitingThreadsIAE() { |
671 |
+ |
final PublicReentrantLock lock = new PublicReentrantLock(); |
672 |
+ |
final Condition c = (lock.newCondition()); |
673 |
+ |
final PublicReentrantLock lock2 = new PublicReentrantLock(); |
674 |
+ |
try { |
675 |
+ |
lock2.getWaitingThreads(c); |
676 |
+ |
shouldThrow(); |
677 |
+ |
} catch (IllegalArgumentException success) { |
678 |
+ |
} catch (Exception ex) { |
679 |
+ |
unexpectedException(); |
680 |
+ |
} |
681 |
+ |
} |
682 |
+ |
|
683 |
+ |
/** |
684 |
+ |
* getWaitingThreads throws IMSE if not locked |
685 |
+ |
*/ |
686 |
+ |
public void testGetWaitingThreadsIMSE() { |
687 |
+ |
final PublicReentrantLock lock = new PublicReentrantLock(); |
688 |
+ |
final Condition c = (lock.newCondition()); |
689 |
+ |
try { |
690 |
+ |
lock.getWaitingThreads(c); |
691 |
+ |
shouldThrow(); |
692 |
+ |
} catch (IllegalMonitorStateException success) { |
693 |
+ |
} catch (Exception ex) { |
694 |
+ |
unexpectedException(); |
695 |
+ |
} |
696 |
+ |
} |
697 |
+ |
|
698 |
+ |
|
699 |
+ |
|
700 |
+ |
/** |
701 |
+ |
* hasWaiters returns true when a thread is waiting, else false |
702 |
+ |
*/ |
703 |
|
public void testHasWaiters() { |
704 |
|
final ReentrantLock lock = new ReentrantLock(); |
705 |
< |
final ReentrantLock.ConditionObject c = lock.newCondition(); |
705 |
> |
final Condition c = lock.newCondition(); |
706 |
|
Thread t = new Thread(new Runnable() { |
707 |
|
public void run() { |
708 |
|
try { |
709 |
|
lock.lock(); |
710 |
< |
threadAssertFalse(c.hasWaiters()); |
711 |
< |
threadAssertEquals(0, c.getWaitQueueLength()); |
710 |
> |
threadAssertFalse(lock.hasWaiters(c)); |
711 |
> |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
712 |
|
c.await(); |
713 |
|
lock.unlock(); |
714 |
|
} |
715 |
|
catch(InterruptedException e) { |
716 |
< |
threadFail("unexpected exception"); |
716 |
> |
threadUnexpectedException(); |
717 |
|
} |
718 |
|
} |
719 |
|
}); |
722 |
|
t.start(); |
723 |
|
Thread.sleep(SHORT_DELAY_MS); |
724 |
|
lock.lock(); |
725 |
< |
assertTrue(c.hasWaiters()); |
726 |
< |
assertEquals(1, c.getWaitQueueLength()); |
725 |
> |
assertTrue(lock.hasWaiters(c)); |
726 |
> |
assertEquals(1, lock.getWaitQueueLength(c)); |
727 |
|
c.signal(); |
728 |
|
lock.unlock(); |
729 |
|
Thread.sleep(SHORT_DELAY_MS); |
730 |
|
lock.lock(); |
731 |
< |
assertFalse(c.hasWaiters()); |
732 |
< |
assertEquals(0, c.getWaitQueueLength()); |
731 |
> |
assertFalse(lock.hasWaiters(c)); |
732 |
> |
assertEquals(0, lock.getWaitQueueLength(c)); |
733 |
|
lock.unlock(); |
734 |
|
t.join(SHORT_DELAY_MS); |
735 |
|
assertFalse(t.isAlive()); |
736 |
|
} |
737 |
|
catch (Exception ex) { |
738 |
< |
fail("unexpected exception"); |
738 |
> |
unexpectedException(); |
739 |
|
} |
740 |
|
} |
741 |
|
|
742 |
+ |
/** |
743 |
+ |
* getWaitQueueLength returns number of waiting threads |
744 |
+ |
*/ |
745 |
|
public void testGetWaitQueueLength() { |
746 |
|
final ReentrantLock lock = new ReentrantLock(); |
747 |
< |
final ReentrantLock.ConditionObject c = lock.newCondition(); |
747 |
> |
final Condition c = lock.newCondition(); |
748 |
|
Thread t1 = new Thread(new Runnable() { |
749 |
|
public void run() { |
750 |
|
try { |
751 |
|
lock.lock(); |
752 |
< |
threadAssertFalse(c.hasWaiters()); |
753 |
< |
threadAssertEquals(0, c.getWaitQueueLength()); |
752 |
> |
threadAssertFalse(lock.hasWaiters(c)); |
753 |
> |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
754 |
|
c.await(); |
755 |
|
lock.unlock(); |
756 |
|
} |
757 |
|
catch(InterruptedException e) { |
758 |
< |
threadFail("unexpected exception"); |
758 |
> |
threadUnexpectedException(); |
759 |
|
} |
760 |
|
} |
761 |
|
}); |
764 |
|
public void run() { |
765 |
|
try { |
766 |
|
lock.lock(); |
767 |
< |
threadAssertTrue(c.hasWaiters()); |
768 |
< |
threadAssertEquals(1, c.getWaitQueueLength()); |
767 |
> |
threadAssertTrue(lock.hasWaiters(c)); |
768 |
> |
threadAssertEquals(1, lock.getWaitQueueLength(c)); |
769 |
|
c.await(); |
770 |
|
lock.unlock(); |
771 |
|
} |
772 |
|
catch(InterruptedException e) { |
773 |
< |
threadFail("unexpected exception"); |
773 |
> |
threadUnexpectedException(); |
774 |
|
} |
775 |
|
} |
776 |
|
}); |
781 |
|
t2.start(); |
782 |
|
Thread.sleep(SHORT_DELAY_MS); |
783 |
|
lock.lock(); |
784 |
< |
assertTrue(c.hasWaiters()); |
785 |
< |
assertEquals(2, c.getWaitQueueLength()); |
784 |
> |
assertTrue(lock.hasWaiters(c)); |
785 |
> |
assertEquals(2, lock.getWaitQueueLength(c)); |
786 |
|
c.signalAll(); |
787 |
|
lock.unlock(); |
788 |
|
Thread.sleep(SHORT_DELAY_MS); |
789 |
|
lock.lock(); |
790 |
< |
assertFalse(c.hasWaiters()); |
791 |
< |
assertEquals(0, c.getWaitQueueLength()); |
790 |
> |
assertFalse(lock.hasWaiters(c)); |
791 |
> |
assertEquals(0, lock.getWaitQueueLength(c)); |
792 |
|
lock.unlock(); |
793 |
|
t1.join(SHORT_DELAY_MS); |
794 |
|
t2.join(SHORT_DELAY_MS); |
796 |
|
assertFalse(t2.isAlive()); |
797 |
|
} |
798 |
|
catch (Exception ex) { |
799 |
< |
fail("unexpected exception"); |
799 |
> |
unexpectedException(); |
800 |
|
} |
801 |
|
} |
802 |
|
|
803 |
+ |
/** |
804 |
+ |
* getWaitingThreads returns only and all waiting threads |
805 |
+ |
*/ |
806 |
|
public void testGetWaitingThreads() { |
807 |
< |
final MyReentrantLock lock = new MyReentrantLock(); |
808 |
< |
final MyReentrantLock.MyCondition c = (MyReentrantLock.MyCondition)lock.newCondition(); |
807 |
> |
final PublicReentrantLock lock = new PublicReentrantLock(); |
808 |
> |
final Condition c = lock.newCondition(); |
809 |
|
Thread t1 = new Thread(new Runnable() { |
810 |
|
public void run() { |
811 |
|
try { |
812 |
|
lock.lock(); |
813 |
< |
threadAssertTrue(c.getWaitingThreads().isEmpty()); |
813 |
> |
threadAssertTrue(lock.getWaitingThreads(c).isEmpty()); |
814 |
|
c.await(); |
815 |
|
lock.unlock(); |
816 |
|
} |
817 |
|
catch(InterruptedException e) { |
818 |
< |
threadFail("unexpected exception"); |
818 |
> |
threadUnexpectedException(); |
819 |
|
} |
820 |
|
} |
821 |
|
}); |
824 |
|
public void run() { |
825 |
|
try { |
826 |
|
lock.lock(); |
827 |
< |
threadAssertFalse(c.getWaitingThreads().isEmpty()); |
827 |
> |
threadAssertFalse(lock.getWaitingThreads(c).isEmpty()); |
828 |
|
c.await(); |
829 |
|
lock.unlock(); |
830 |
|
} |
831 |
|
catch(InterruptedException e) { |
832 |
< |
threadFail("unexpected exception"); |
832 |
> |
threadUnexpectedException(); |
833 |
|
} |
834 |
|
} |
835 |
|
}); |
836 |
|
|
837 |
|
try { |
838 |
|
lock.lock(); |
839 |
< |
assertTrue(c.getWaitingThreads().isEmpty()); |
839 |
> |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
840 |
|
lock.unlock(); |
841 |
|
t1.start(); |
842 |
|
Thread.sleep(SHORT_DELAY_MS); |
843 |
|
t2.start(); |
844 |
|
Thread.sleep(SHORT_DELAY_MS); |
845 |
|
lock.lock(); |
846 |
< |
assertTrue(c.hasWaiters()); |
847 |
< |
assertTrue(c.getWaitingThreads().contains(t1)); |
848 |
< |
assertTrue(c.getWaitingThreads().contains(t2)); |
846 |
> |
assertTrue(lock.hasWaiters(c)); |
847 |
> |
assertTrue(lock.getWaitingThreads(c).contains(t1)); |
848 |
> |
assertTrue(lock.getWaitingThreads(c).contains(t2)); |
849 |
|
c.signalAll(); |
850 |
|
lock.unlock(); |
851 |
|
Thread.sleep(SHORT_DELAY_MS); |
852 |
|
lock.lock(); |
853 |
< |
assertFalse(c.hasWaiters()); |
854 |
< |
assertTrue(c.getWaitingThreads().isEmpty()); |
853 |
> |
assertFalse(lock.hasWaiters(c)); |
854 |
> |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
855 |
|
lock.unlock(); |
856 |
|
t1.join(SHORT_DELAY_MS); |
857 |
|
t2.join(SHORT_DELAY_MS); |
859 |
|
assertFalse(t2.isAlive()); |
860 |
|
} |
861 |
|
catch (Exception ex) { |
862 |
< |
fail("unexpected exception"); |
862 |
> |
unexpectedException(); |
863 |
|
} |
864 |
|
} |
865 |
|
|
866 |
+ |
/** A helper class for uninterruptible wait tests */ |
867 |
+ |
class UninterruptableThread extends Thread { |
868 |
+ |
private ReentrantLock lock; |
869 |
+ |
private Condition c; |
870 |
+ |
|
871 |
+ |
public volatile boolean canAwake = false; |
872 |
+ |
public volatile boolean interrupted = false; |
873 |
+ |
public volatile boolean lockStarted = false; |
874 |
+ |
|
875 |
+ |
public UninterruptableThread(ReentrantLock lock, Condition c) { |
876 |
+ |
this.lock = lock; |
877 |
+ |
this.c = c; |
878 |
+ |
} |
879 |
+ |
|
880 |
+ |
public synchronized void run() { |
881 |
+ |
lock.lock(); |
882 |
+ |
lockStarted = true; |
883 |
+ |
|
884 |
+ |
while (!canAwake) { |
885 |
+ |
c.awaitUninterruptibly(); |
886 |
+ |
} |
887 |
+ |
|
888 |
+ |
interrupted = isInterrupted(); |
889 |
+ |
lock.unlock(); |
890 |
+ |
} |
891 |
+ |
} |
892 |
+ |
|
893 |
+ |
/** |
894 |
+ |
* awaitUninterruptibly doesn't abort on interrupt |
895 |
+ |
*/ |
896 |
|
public void testAwaitUninterruptibly() { |
897 |
< |
final ReentrantLock lock = new ReentrantLock(); |
897 |
> |
final ReentrantLock lock = new ReentrantLock(); |
898 |
|
final Condition c = lock.newCondition(); |
899 |
< |
Thread t = new Thread(new Runnable() { |
556 |
< |
public void run() { |
557 |
< |
lock.lock(); |
558 |
< |
c.awaitUninterruptibly(); |
559 |
< |
lock.unlock(); |
560 |
< |
} |
561 |
< |
}); |
899 |
> |
UninterruptableThread thread = new UninterruptableThread(lock, c); |
900 |
|
|
901 |
|
try { |
902 |
< |
t.start(); |
903 |
< |
Thread.sleep(SHORT_DELAY_MS); |
904 |
< |
t.interrupt(); |
902 |
> |
thread.start(); |
903 |
> |
|
904 |
> |
while (!thread.lockStarted) { |
905 |
> |
Thread.sleep(100); |
906 |
> |
} |
907 |
> |
|
908 |
|
lock.lock(); |
909 |
< |
c.signal(); |
910 |
< |
lock.unlock(); |
911 |
< |
t.join(SHORT_DELAY_MS); |
912 |
< |
assertFalse(t.isAlive()); |
913 |
< |
} |
914 |
< |
catch (Exception ex) { |
915 |
< |
fail("unexpected exception"); |
909 |
> |
try { |
910 |
> |
thread.interrupt(); |
911 |
> |
thread.canAwake = true; |
912 |
> |
c.signal(); |
913 |
> |
} finally { |
914 |
> |
lock.unlock(); |
915 |
> |
} |
916 |
> |
|
917 |
> |
thread.join(); |
918 |
> |
assertTrue(thread.interrupted); |
919 |
> |
assertFalse(thread.isAlive()); |
920 |
> |
} catch (Exception ex) { |
921 |
> |
unexpectedException(); |
922 |
|
} |
923 |
|
} |
924 |
|
|
925 |
+ |
/** |
926 |
+ |
* await is interruptible |
927 |
+ |
*/ |
928 |
|
public void testAwait_Interrupt() { |
929 |
|
final ReentrantLock lock = new ReentrantLock(); |
930 |
|
final Condition c = lock.newCondition(); |
934 |
|
lock.lock(); |
935 |
|
c.await(); |
936 |
|
lock.unlock(); |
937 |
< |
threadFail("should throw"); |
937 |
> |
threadShouldThrow(); |
938 |
|
} |
939 |
|
catch(InterruptedException success) { |
940 |
|
} |
949 |
|
assertFalse(t.isAlive()); |
950 |
|
} |
951 |
|
catch (Exception ex) { |
952 |
< |
fail("unexpected exception"); |
952 |
> |
unexpectedException(); |
953 |
|
} |
954 |
|
} |
955 |
|
|
956 |
+ |
/** |
957 |
+ |
* awaitNanos is interruptible |
958 |
+ |
*/ |
959 |
|
public void testAwaitNanos_Interrupt() { |
960 |
|
final ReentrantLock lock = new ReentrantLock(); |
961 |
|
final Condition c = lock.newCondition(); |
963 |
|
public void run() { |
964 |
|
try { |
965 |
|
lock.lock(); |
966 |
< |
c.awaitNanos(SHORT_DELAY_MS * 2 * 1000000); |
966 |
> |
c.awaitNanos(1000 * 1000 * 1000); // 1 sec |
967 |
|
lock.unlock(); |
968 |
< |
threadFail("should throw"); |
968 |
> |
threadShouldThrow(); |
969 |
|
} |
970 |
|
catch(InterruptedException success) { |
971 |
|
} |
980 |
|
assertFalse(t.isAlive()); |
981 |
|
} |
982 |
|
catch (Exception ex) { |
983 |
< |
fail("unexpected exception"); |
983 |
> |
unexpectedException(); |
984 |
|
} |
985 |
|
} |
986 |
|
|
987 |
+ |
/** |
988 |
+ |
* awaitUntil is interruptible |
989 |
+ |
*/ |
990 |
|
public void testAwaitUntil_Interrupt() { |
991 |
|
final ReentrantLock lock = new ReentrantLock(); |
992 |
|
final Condition c = lock.newCondition(); |
997 |
|
java.util.Date d = new java.util.Date(); |
998 |
|
c.awaitUntil(new java.util.Date(d.getTime() + 10000)); |
999 |
|
lock.unlock(); |
1000 |
< |
threadFail("should throw"); |
1000 |
> |
threadShouldThrow(); |
1001 |
|
} |
1002 |
|
catch(InterruptedException success) { |
1003 |
|
} |
1012 |
|
assertFalse(t.isAlive()); |
1013 |
|
} |
1014 |
|
catch (Exception ex) { |
1015 |
< |
fail("unexpected exception"); |
1015 |
> |
unexpectedException(); |
1016 |
|
} |
1017 |
|
} |
1018 |
|
|
1019 |
+ |
/** |
1020 |
+ |
* signalAll wakes up all threads |
1021 |
+ |
*/ |
1022 |
|
public void testSignalAll() { |
1023 |
|
final ReentrantLock lock = new ReentrantLock(); |
1024 |
|
final Condition c = lock.newCondition(); |
1030 |
|
lock.unlock(); |
1031 |
|
} |
1032 |
|
catch(InterruptedException e) { |
1033 |
< |
threadFail("unexpected exception"); |
1033 |
> |
threadUnexpectedException(); |
1034 |
|
} |
1035 |
|
} |
1036 |
|
}); |
1043 |
|
lock.unlock(); |
1044 |
|
} |
1045 |
|
catch(InterruptedException e) { |
1046 |
< |
threadFail("unexpected exception"); |
1046 |
> |
threadUnexpectedException(); |
1047 |
|
} |
1048 |
|
} |
1049 |
|
}); |
1061 |
|
assertFalse(t2.isAlive()); |
1062 |
|
} |
1063 |
|
catch (Exception ex) { |
1064 |
< |
fail("unexpected exception"); |
1064 |
> |
unexpectedException(); |
1065 |
|
} |
1066 |
|
} |
1067 |
|
|
1068 |
+ |
/** |
1069 |
+ |
* A serialized lock deserializes as unlocked |
1070 |
+ |
*/ |
1071 |
|
public void testSerialization() { |
1072 |
|
ReentrantLock l = new ReentrantLock(); |
1073 |
|
l.lock(); |
1086 |
|
r.unlock(); |
1087 |
|
} catch(Exception e){ |
1088 |
|
e.printStackTrace(); |
1089 |
< |
fail("unexpected exception"); |
1089 |
> |
unexpectedException(); |
1090 |
|
} |
1091 |
|
} |
1092 |
|
|
1093 |
+ |
/** |
1094 |
+ |
* toString indicates current lock state |
1095 |
+ |
*/ |
1096 |
+ |
public void testToString() { |
1097 |
+ |
ReentrantLock lock = new ReentrantLock(); |
1098 |
+ |
String us = lock.toString(); |
1099 |
+ |
assertTrue(us.indexOf("Unlocked") >= 0); |
1100 |
+ |
lock.lock(); |
1101 |
+ |
String ls = lock.toString(); |
1102 |
+ |
assertTrue(ls.indexOf("Locked") >= 0); |
1103 |
+ |
} |
1104 |
+ |
|
1105 |
|
} |