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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/licenses/publicdomain |
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< |
* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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> |
* Other contributors include Andrew Wright, Jeffrey Hayes, |
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> |
* Pat Fisher, Mike Judd. |
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*/ |
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|
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import junit.framework.*; |
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|
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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); |
23 |
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/** |
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* A runnable calling lockInterruptibly |
25 |
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*/ |
26 |
< |
class InterruptibleLockRunnable implements Runnable { |
26 |
> |
class InterruptibleLockRunnable extends CheckedRunnable { |
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final ReentrantReadWriteLock lock; |
28 |
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InterruptibleLockRunnable(ReentrantReadWriteLock l) { lock = l; } |
29 |
< |
public void run() { |
30 |
< |
try { |
31 |
< |
lock.writeLock().lockInterruptibly(); |
32 |
< |
} catch(InterruptedException success){} |
29 |
> |
public void realRun() throws InterruptedException { |
30 |
> |
lock.writeLock().lockInterruptibly(); |
31 |
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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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*/ |
39 |
< |
class InterruptedLockRunnable implements Runnable { |
39 |
> |
class InterruptedLockRunnable extends CheckedInterruptedRunnable { |
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final ReentrantReadWriteLock lock; |
41 |
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InterruptedLockRunnable(ReentrantReadWriteLock l) { lock = l; } |
42 |
< |
public void run() { |
43 |
< |
try { |
46 |
< |
lock.writeLock().lockInterruptibly(); |
47 |
< |
threadShouldThrow(); |
48 |
< |
} catch(InterruptedException success){} |
42 |
> |
public void realRun() throws InterruptedException { |
43 |
> |
lock.writeLock().lockInterruptibly(); |
44 |
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} |
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} |
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|
49 |
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*/ |
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static class PublicReentrantReadWriteLock extends ReentrantReadWriteLock { |
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PublicReentrantReadWriteLock() { super(); } |
52 |
< |
public Collection<Thread> getQueuedThreads() { |
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< |
return super.getQueuedThreads(); |
52 |
> |
public Collection<Thread> getQueuedThreads() { |
53 |
> |
return super.getQueuedThreads(); |
54 |
> |
} |
55 |
> |
public Collection<Thread> getWaitingThreads(Condition c) { |
56 |
> |
return super.getWaitingThreads(c); |
57 |
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} |
58 |
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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 |
62 |
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*/ |
63 |
< |
public void testConstructor() { |
63 |
> |
public void testConstructor() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
65 |
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assertFalse(rl.isFair()); |
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assertFalse(rl.isWriteLocked()); |
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assertTrue(r2.isFair()); |
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assertFalse(r2.isWriteLocked()); |
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assertEquals(0, r2.getReadLockCount()); |
72 |
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ReentrantReadWriteLock r3 = new ReentrantReadWriteLock(false); |
73 |
+ |
assertFalse(r3.isFair()); |
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assertFalse(r3.isWriteLocked()); |
75 |
+ |
assertEquals(0, r3.getReadLockCount()); |
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} |
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|
78 |
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/** |
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* write-locking and read-locking an unlocked lock succeed |
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*/ |
81 |
< |
public void testLock() { |
81 |
> |
public void testLock() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
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rl.writeLock().lock(); |
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assertTrue(rl.isWriteLocked()); |
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assertTrue(rl.isWriteLockedByCurrentThread()); |
86 |
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assertTrue(rl.writeLock().isHeldByCurrentThread()); |
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assertEquals(0, rl.getReadLockCount()); |
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rl.writeLock().unlock(); |
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assertFalse(rl.isWriteLocked()); |
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assertFalse(rl.isWriteLockedByCurrentThread()); |
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assertFalse(rl.writeLock().isHeldByCurrentThread()); |
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assertEquals(0, rl.getReadLockCount()); |
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rl.readLock().lock(); |
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assertFalse(rl.isWriteLocked()); |
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/** |
105 |
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* locking an unlocked fair lock succeeds |
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*/ |
107 |
< |
public void testFairLock() { |
107 |
> |
public void testFairLock() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(true); |
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rl.writeLock().lock(); |
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assertTrue(rl.isWriteLocked()); |
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assertTrue(rl.isWriteLockedByCurrentThread()); |
112 |
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assertTrue(rl.writeLock().isHeldByCurrentThread()); |
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assertEquals(0, rl.getReadLockCount()); |
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rl.writeLock().unlock(); |
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assertFalse(rl.isWriteLocked()); |
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assertFalse(rl.isWriteLockedByCurrentThread()); |
117 |
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assertFalse(rl.writeLock().isHeldByCurrentThread()); |
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assertEquals(0, rl.getReadLockCount()); |
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rl.readLock().lock(); |
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assertFalse(rl.isWriteLocked()); |
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/** |
130 |
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* getWriteHoldCount returns number of recursive holds |
131 |
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*/ |
132 |
< |
public void testGetHoldCount() { |
132 |
> |
public void testGetWriteHoldCount() { |
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ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
134 |
< |
for(int i = 1; i <= SIZE; i++) { |
134 |
> |
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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} |
138 |
< |
for(int i = SIZE; i > 0; i--) { |
138 |
> |
for (int i = SIZE; i > 0; i--) { |
139 |
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lock.writeLock().unlock(); |
140 |
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assertEquals(i-1,lock.getWriteHoldCount()); |
141 |
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} |
142 |
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} |
143 |
< |
|
143 |
> |
|
144 |
> |
/** |
145 |
> |
* WriteLock.getHoldCount returns number of recursive holds |
146 |
> |
*/ |
147 |
> |
public void testGetHoldCount() { |
148 |
> |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
149 |
> |
for (int i = 1; i <= SIZE; i++) { |
150 |
> |
lock.writeLock().lock(); |
151 |
> |
assertEquals(i,lock.writeLock().getHoldCount()); |
152 |
> |
} |
153 |
> |
for (int i = SIZE; i > 0; i--) { |
154 |
> |
lock.writeLock().unlock(); |
155 |
> |
assertEquals(i-1,lock.writeLock().getHoldCount()); |
156 |
> |
} |
157 |
> |
} |
158 |
> |
|
159 |
> |
/** |
160 |
> |
* getReadHoldCount returns number of recursive holds |
161 |
> |
*/ |
162 |
> |
public void testGetReadHoldCount() { |
163 |
> |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
164 |
> |
for (int i = 1; i <= SIZE; i++) { |
165 |
> |
lock.readLock().lock(); |
166 |
> |
assertEquals(i,lock.getReadHoldCount()); |
167 |
> |
} |
168 |
> |
for (int i = SIZE; i > 0; i--) { |
169 |
> |
lock.readLock().unlock(); |
170 |
> |
assertEquals(i-1,lock.getReadHoldCount()); |
171 |
> |
} |
172 |
> |
} |
173 |
> |
|
174 |
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|
175 |
|
/** |
176 |
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* write-unlocking an unlocked lock throws IllegalMonitorStateException |
177 |
|
*/ |
178 |
< |
public void testUnlock_IllegalMonitorStateException() { |
178 |
> |
public void testUnlock_IllegalMonitorStateException() { |
179 |
|
ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
180 |
|
try { |
181 |
|
rl.writeLock().unlock(); |
182 |
|
shouldThrow(); |
183 |
< |
} catch(IllegalMonitorStateException success){} |
183 |
> |
} catch (IllegalMonitorStateException success) {} |
184 |
|
} |
185 |
|
|
186 |
|
|
187 |
|
/** |
188 |
|
* write-lockInterruptibly is interruptible |
189 |
|
*/ |
190 |
< |
public void testWriteLockInterruptibly_Interrupted() { |
190 |
> |
public void testWriteLockInterruptibly_Interrupted() throws Exception { |
191 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
192 |
< |
lock.writeLock().lock(); |
193 |
< |
Thread t = new Thread(new Runnable() { |
194 |
< |
public void run() { |
195 |
< |
try { |
196 |
< |
lock.writeLock().lockInterruptibly(); |
197 |
< |
threadShouldThrow(); |
198 |
< |
} catch(InterruptedException success){} |
199 |
< |
} |
200 |
< |
}); |
201 |
< |
try { |
202 |
< |
t.start(); |
203 |
< |
t.interrupt(); |
204 |
< |
lock.writeLock().unlock(); |
205 |
< |
t.join(); |
206 |
< |
} catch(Exception e){ |
207 |
< |
unexpectedException(); |
172 |
< |
} |
173 |
< |
} |
192 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
193 |
> |
public void realRun() throws InterruptedException { |
194 |
> |
lock.writeLock().lockInterruptibly(); |
195 |
> |
lock.writeLock().unlock(); |
196 |
> |
lock.writeLock().lockInterruptibly(); |
197 |
> |
lock.writeLock().unlock(); |
198 |
> |
}}); |
199 |
> |
|
200 |
> |
lock.writeLock().lock(); |
201 |
> |
t.start(); |
202 |
> |
Thread.sleep(SHORT_DELAY_MS); |
203 |
> |
t.interrupt(); |
204 |
> |
Thread.sleep(SHORT_DELAY_MS); |
205 |
> |
lock.writeLock().unlock(); |
206 |
> |
t.join(); |
207 |
> |
} |
208 |
|
|
209 |
|
/** |
210 |
< |
* timed write-trylock is interruptible |
210 |
> |
* timed write-tryLock is interruptible |
211 |
|
*/ |
212 |
< |
public void testWriteTryLock_Interrupted() { |
212 |
> |
public void testWriteTryLock_Interrupted() throws InterruptedException { |
213 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
214 |
|
lock.writeLock().lock(); |
215 |
< |
Thread t = new Thread(new Runnable() { |
216 |
< |
public void run() { |
217 |
< |
try { |
218 |
< |
lock.writeLock().tryLock(1000,TimeUnit.MILLISECONDS); |
219 |
< |
threadShouldThrow(); |
220 |
< |
} catch(InterruptedException success){} |
221 |
< |
} |
222 |
< |
}); |
223 |
< |
try { |
190 |
< |
t.start(); |
191 |
< |
t.interrupt(); |
192 |
< |
lock.writeLock().unlock(); |
193 |
< |
t.join(); |
194 |
< |
} catch(Exception e){ |
195 |
< |
unexpectedException(); |
196 |
< |
} |
215 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
216 |
> |
public void realRun() throws InterruptedException { |
217 |
> |
lock.writeLock().tryLock(1000,TimeUnit.MILLISECONDS); |
218 |
> |
}}); |
219 |
> |
|
220 |
> |
t.start(); |
221 |
> |
t.interrupt(); |
222 |
> |
lock.writeLock().unlock(); |
223 |
> |
t.join(); |
224 |
|
} |
225 |
|
|
226 |
|
/** |
227 |
|
* read-lockInterruptibly is interruptible |
228 |
|
*/ |
229 |
< |
public void testReadLockInterruptibly_Interrupted() { |
229 |
> |
public void testReadLockInterruptibly_Interrupted() throws InterruptedException { |
230 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
231 |
|
lock.writeLock().lock(); |
232 |
< |
Thread t = new Thread(new Runnable() { |
233 |
< |
public void run() { |
234 |
< |
try { |
235 |
< |
lock.readLock().lockInterruptibly(); |
236 |
< |
threadShouldThrow(); |
237 |
< |
} catch(InterruptedException success){} |
238 |
< |
} |
239 |
< |
}); |
240 |
< |
try { |
241 |
< |
t.start(); |
242 |
< |
t.interrupt(); |
243 |
< |
lock.writeLock().unlock(); |
217 |
< |
t.join(); |
218 |
< |
} catch(Exception e){ |
219 |
< |
unexpectedException(); |
220 |
< |
} |
221 |
< |
} |
232 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
233 |
> |
public void realRun() throws InterruptedException { |
234 |
> |
lock.readLock().lockInterruptibly(); |
235 |
> |
}}); |
236 |
> |
|
237 |
> |
t.start(); |
238 |
> |
Thread.sleep(SHORT_DELAY_MS); |
239 |
> |
t.interrupt(); |
240 |
> |
Thread.sleep(SHORT_DELAY_MS); |
241 |
> |
lock.writeLock().unlock(); |
242 |
> |
t.join(); |
243 |
> |
} |
244 |
|
|
245 |
|
/** |
246 |
< |
* timed read-trylock is interruptible |
246 |
> |
* timed read-tryLock is interruptible |
247 |
|
*/ |
248 |
< |
public void testReadTryLock_Interrupted() { |
248 |
> |
public void testReadTryLock_Interrupted() throws InterruptedException { |
249 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
250 |
|
lock.writeLock().lock(); |
251 |
< |
Thread t = new Thread(new Runnable() { |
252 |
< |
public void run() { |
253 |
< |
try { |
254 |
< |
lock.readLock().tryLock(1000,TimeUnit.MILLISECONDS); |
255 |
< |
threadShouldThrow(); |
256 |
< |
} catch(InterruptedException success){} |
257 |
< |
} |
258 |
< |
}); |
237 |
< |
try { |
238 |
< |
t.start(); |
239 |
< |
t.interrupt(); |
240 |
< |
t.join(); |
241 |
< |
} catch(Exception e){ |
242 |
< |
unexpectedException(); |
243 |
< |
} |
251 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
252 |
> |
public void realRun() throws InterruptedException { |
253 |
> |
lock.readLock().tryLock(1000,TimeUnit.MILLISECONDS); |
254 |
> |
}}); |
255 |
> |
|
256 |
> |
t.start(); |
257 |
> |
t.interrupt(); |
258 |
> |
t.join(); |
259 |
|
} |
260 |
|
|
261 |
< |
|
261 |
> |
|
262 |
|
/** |
263 |
< |
* write-trylock fails if locked |
263 |
> |
* write-tryLock fails if locked |
264 |
|
*/ |
265 |
< |
public void testWriteTryLockWhenLocked() { |
265 |
> |
public void testWriteTryLockWhenLocked() throws InterruptedException { |
266 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
267 |
|
lock.writeLock().lock(); |
268 |
|
Thread t = new Thread(new Runnable() { |
270 |
|
threadAssertFalse(lock.writeLock().tryLock()); |
271 |
|
} |
272 |
|
}); |
273 |
< |
try { |
274 |
< |
t.start(); |
275 |
< |
t.join(); |
276 |
< |
lock.writeLock().unlock(); |
277 |
< |
} catch(Exception e){ |
263 |
< |
unexpectedException(); |
264 |
< |
} |
265 |
< |
} |
273 |
> |
|
274 |
> |
t.start(); |
275 |
> |
t.join(); |
276 |
> |
lock.writeLock().unlock(); |
277 |
> |
} |
278 |
|
|
279 |
|
/** |
280 |
< |
* read-trylock fails if locked |
280 |
> |
* read-tryLock fails if locked |
281 |
|
*/ |
282 |
< |
public void testReadTryLockWhenLocked() { |
282 |
> |
public void testReadTryLockWhenLocked() throws InterruptedException { |
283 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
284 |
|
lock.writeLock().lock(); |
285 |
|
Thread t = new Thread(new Runnable() { |
287 |
|
threadAssertFalse(lock.readLock().tryLock()); |
288 |
|
} |
289 |
|
}); |
290 |
< |
try { |
291 |
< |
t.start(); |
292 |
< |
t.join(); |
293 |
< |
lock.writeLock().unlock(); |
294 |
< |
} catch(Exception e){ |
283 |
< |
unexpectedException(); |
284 |
< |
} |
285 |
< |
} |
290 |
> |
|
291 |
> |
t.start(); |
292 |
> |
t.join(); |
293 |
> |
lock.writeLock().unlock(); |
294 |
> |
} |
295 |
|
|
296 |
|
/** |
297 |
|
* Multiple threads can hold a read lock when not write-locked |
298 |
|
*/ |
299 |
< |
public void testMultipleReadLocks() { |
299 |
> |
public void testMultipleReadLocks() throws InterruptedException { |
300 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
301 |
|
lock.readLock().lock(); |
302 |
|
Thread t = new Thread(new Runnable() { |
305 |
|
lock.readLock().unlock(); |
306 |
|
} |
307 |
|
}); |
308 |
< |
try { |
309 |
< |
t.start(); |
310 |
< |
t.join(); |
311 |
< |
lock.readLock().unlock(); |
312 |
< |
} catch(Exception e){ |
304 |
< |
unexpectedException(); |
305 |
< |
} |
306 |
< |
} |
308 |
> |
|
309 |
> |
t.start(); |
310 |
> |
t.join(); |
311 |
> |
lock.readLock().unlock(); |
312 |
> |
} |
313 |
|
|
314 |
|
/** |
315 |
|
* A writelock succeeds after reading threads unlock |
316 |
|
*/ |
317 |
< |
public void testWriteAfterMultipleReadLocks() { |
317 |
> |
public void testWriteAfterMultipleReadLocks() throws InterruptedException { |
318 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
319 |
|
lock.readLock().lock(); |
320 |
|
Thread t1 = new Thread(new Runnable() { |
330 |
|
} |
331 |
|
}); |
332 |
|
|
333 |
< |
try { |
334 |
< |
t1.start(); |
335 |
< |
t2.start(); |
336 |
< |
Thread.sleep(SHORT_DELAY_MS); |
337 |
< |
lock.readLock().unlock(); |
338 |
< |
t1.join(MEDIUM_DELAY_MS); |
339 |
< |
t2.join(MEDIUM_DELAY_MS); |
340 |
< |
assertTrue(!t1.isAlive()); |
341 |
< |
assertTrue(!t2.isAlive()); |
336 |
< |
|
337 |
< |
} catch(Exception e){ |
338 |
< |
unexpectedException(); |
339 |
< |
} |
340 |
< |
} |
333 |
> |
t1.start(); |
334 |
> |
t2.start(); |
335 |
> |
Thread.sleep(SHORT_DELAY_MS); |
336 |
> |
lock.readLock().unlock(); |
337 |
> |
t1.join(MEDIUM_DELAY_MS); |
338 |
> |
t2.join(MEDIUM_DELAY_MS); |
339 |
> |
assertTrue(!t1.isAlive()); |
340 |
> |
assertTrue(!t2.isAlive()); |
341 |
> |
} |
342 |
|
|
343 |
|
/** |
344 |
|
* Readlocks succeed after a writing thread unlocks |
345 |
|
*/ |
346 |
< |
public void testReadAfterWriteLock() { |
346 |
> |
public void testReadAfterWriteLock() throws InterruptedException { |
347 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
348 |
|
lock.writeLock().lock(); |
349 |
|
Thread t1 = new Thread(new Runnable() { |
359 |
|
} |
360 |
|
}); |
361 |
|
|
362 |
< |
try { |
363 |
< |
t1.start(); |
364 |
< |
t2.start(); |
365 |
< |
Thread.sleep(SHORT_DELAY_MS); |
366 |
< |
lock.writeLock().unlock(); |
367 |
< |
t1.join(MEDIUM_DELAY_MS); |
368 |
< |
t2.join(MEDIUM_DELAY_MS); |
369 |
< |
assertTrue(!t1.isAlive()); |
370 |
< |
assertTrue(!t2.isAlive()); |
371 |
< |
|
372 |
< |
} catch(Exception e){ |
373 |
< |
unexpectedException(); |
374 |
< |
} |
375 |
< |
} |
362 |
> |
t1.start(); |
363 |
> |
t2.start(); |
364 |
> |
Thread.sleep(SHORT_DELAY_MS); |
365 |
> |
lock.writeLock().unlock(); |
366 |
> |
t1.join(MEDIUM_DELAY_MS); |
367 |
> |
t2.join(MEDIUM_DELAY_MS); |
368 |
> |
assertTrue(!t1.isAlive()); |
369 |
> |
assertTrue(!t2.isAlive()); |
370 |
> |
} |
371 |
> |
|
372 |
> |
/** |
373 |
> |
* Read trylock succeeds if write locked by current thread |
374 |
> |
*/ |
375 |
> |
public void testReadHoldingWriteLock() { |
376 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
377 |
> |
lock.writeLock().lock(); |
378 |
> |
assertTrue(lock.readLock().tryLock()); |
379 |
> |
lock.readLock().unlock(); |
380 |
> |
lock.writeLock().unlock(); |
381 |
> |
} |
382 |
> |
|
383 |
> |
/** |
384 |
> |
* Read lock succeeds if write locked by current thread even if |
385 |
> |
* other threads are waiting for readlock |
386 |
> |
*/ |
387 |
> |
public void testReadHoldingWriteLock2() throws InterruptedException { |
388 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
389 |
> |
lock.writeLock().lock(); |
390 |
> |
Thread t1 = new Thread(new Runnable() { |
391 |
> |
public void run() { |
392 |
> |
lock.readLock().lock(); |
393 |
> |
lock.readLock().unlock(); |
394 |
> |
} |
395 |
> |
}); |
396 |
> |
Thread t2 = new Thread(new Runnable() { |
397 |
> |
public void run() { |
398 |
> |
lock.readLock().lock(); |
399 |
> |
lock.readLock().unlock(); |
400 |
> |
} |
401 |
> |
}); |
402 |
> |
|
403 |
> |
t1.start(); |
404 |
> |
t2.start(); |
405 |
> |
lock.readLock().lock(); |
406 |
> |
lock.readLock().unlock(); |
407 |
> |
Thread.sleep(SHORT_DELAY_MS); |
408 |
> |
lock.readLock().lock(); |
409 |
> |
lock.readLock().unlock(); |
410 |
> |
lock.writeLock().unlock(); |
411 |
> |
t1.join(MEDIUM_DELAY_MS); |
412 |
> |
t2.join(MEDIUM_DELAY_MS); |
413 |
> |
assertTrue(!t1.isAlive()); |
414 |
> |
assertTrue(!t2.isAlive()); |
415 |
> |
} |
416 |
> |
|
417 |
> |
/** |
418 |
> |
* Read lock succeeds if write locked by current thread even if |
419 |
> |
* other threads are waiting for writelock |
420 |
> |
*/ |
421 |
> |
public void testReadHoldingWriteLock3() throws InterruptedException { |
422 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
423 |
> |
lock.writeLock().lock(); |
424 |
> |
Thread t1 = new Thread(new Runnable() { |
425 |
> |
public void run() { |
426 |
> |
lock.writeLock().lock(); |
427 |
> |
lock.writeLock().unlock(); |
428 |
> |
} |
429 |
> |
}); |
430 |
> |
Thread t2 = new Thread(new Runnable() { |
431 |
> |
public void run() { |
432 |
> |
lock.writeLock().lock(); |
433 |
> |
lock.writeLock().unlock(); |
434 |
> |
} |
435 |
> |
}); |
436 |
> |
|
437 |
> |
t1.start(); |
438 |
> |
t2.start(); |
439 |
> |
lock.readLock().lock(); |
440 |
> |
lock.readLock().unlock(); |
441 |
> |
Thread.sleep(SHORT_DELAY_MS); |
442 |
> |
lock.readLock().lock(); |
443 |
> |
lock.readLock().unlock(); |
444 |
> |
lock.writeLock().unlock(); |
445 |
> |
t1.join(MEDIUM_DELAY_MS); |
446 |
> |
t2.join(MEDIUM_DELAY_MS); |
447 |
> |
assertTrue(!t1.isAlive()); |
448 |
> |
assertTrue(!t2.isAlive()); |
449 |
> |
} |
450 |
|
|
451 |
|
|
452 |
|
/** |
453 |
< |
* Read trylock succeeds if readlocked but not writelocked |
453 |
> |
* Write lock succeeds if write locked by current thread even if |
454 |
> |
* other threads are waiting for writelock |
455 |
|
*/ |
456 |
< |
public void testTryLockWhenReadLocked() { |
456 |
> |
public void testWriteHoldingWriteLock4() throws InterruptedException { |
457 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
458 |
> |
lock.writeLock().lock(); |
459 |
> |
Thread t1 = new Thread(new Runnable() { |
460 |
> |
public void run() { |
461 |
> |
lock.writeLock().lock(); |
462 |
> |
lock.writeLock().unlock(); |
463 |
> |
} |
464 |
> |
}); |
465 |
> |
Thread t2 = new Thread(new Runnable() { |
466 |
> |
public void run() { |
467 |
> |
lock.writeLock().lock(); |
468 |
> |
lock.writeLock().unlock(); |
469 |
> |
} |
470 |
> |
}); |
471 |
> |
|
472 |
> |
t1.start(); |
473 |
> |
t2.start(); |
474 |
> |
lock.writeLock().lock(); |
475 |
> |
lock.writeLock().unlock(); |
476 |
> |
Thread.sleep(SHORT_DELAY_MS); |
477 |
> |
lock.writeLock().lock(); |
478 |
> |
lock.writeLock().unlock(); |
479 |
> |
lock.writeLock().unlock(); |
480 |
> |
t1.join(MEDIUM_DELAY_MS); |
481 |
> |
t2.join(MEDIUM_DELAY_MS); |
482 |
> |
assertTrue(!t1.isAlive()); |
483 |
> |
assertTrue(!t2.isAlive()); |
484 |
> |
} |
485 |
> |
|
486 |
> |
|
487 |
> |
/** |
488 |
> |
* Fair Read trylock succeeds if write locked by current thread |
489 |
> |
*/ |
490 |
> |
public void testReadHoldingWriteLockFair() { |
491 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
492 |
> |
lock.writeLock().lock(); |
493 |
> |
assertTrue(lock.readLock().tryLock()); |
494 |
> |
lock.readLock().unlock(); |
495 |
> |
lock.writeLock().unlock(); |
496 |
> |
} |
497 |
> |
|
498 |
> |
/** |
499 |
> |
* Fair Read lock succeeds if write locked by current thread even if |
500 |
> |
* other threads are waiting for readlock |
501 |
> |
*/ |
502 |
> |
public void testReadHoldingWriteLockFair2() throws InterruptedException { |
503 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
504 |
> |
lock.writeLock().lock(); |
505 |
> |
Thread t1 = new Thread(new Runnable() { |
506 |
> |
public void run() { |
507 |
> |
lock.readLock().lock(); |
508 |
> |
lock.readLock().unlock(); |
509 |
> |
} |
510 |
> |
}); |
511 |
> |
Thread t2 = new Thread(new Runnable() { |
512 |
> |
public void run() { |
513 |
> |
lock.readLock().lock(); |
514 |
> |
lock.readLock().unlock(); |
515 |
> |
} |
516 |
> |
}); |
517 |
> |
|
518 |
> |
t1.start(); |
519 |
> |
t2.start(); |
520 |
> |
lock.readLock().lock(); |
521 |
> |
lock.readLock().unlock(); |
522 |
> |
Thread.sleep(SHORT_DELAY_MS); |
523 |
> |
lock.readLock().lock(); |
524 |
> |
lock.readLock().unlock(); |
525 |
> |
lock.writeLock().unlock(); |
526 |
> |
t1.join(MEDIUM_DELAY_MS); |
527 |
> |
t2.join(MEDIUM_DELAY_MS); |
528 |
> |
assertTrue(!t1.isAlive()); |
529 |
> |
assertTrue(!t2.isAlive()); |
530 |
> |
} |
531 |
> |
|
532 |
> |
|
533 |
> |
/** |
534 |
> |
* Fair Read lock succeeds if write locked by current thread even if |
535 |
> |
* other threads are waiting for writelock |
536 |
> |
*/ |
537 |
> |
public void testReadHoldingWriteLockFair3() throws InterruptedException { |
538 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
539 |
> |
lock.writeLock().lock(); |
540 |
> |
Thread t1 = new Thread(new Runnable() { |
541 |
> |
public void run() { |
542 |
> |
lock.writeLock().lock(); |
543 |
> |
lock.writeLock().unlock(); |
544 |
> |
} |
545 |
> |
}); |
546 |
> |
Thread t2 = new Thread(new Runnable() { |
547 |
> |
public void run() { |
548 |
> |
lock.writeLock().lock(); |
549 |
> |
lock.writeLock().unlock(); |
550 |
> |
} |
551 |
> |
}); |
552 |
> |
|
553 |
> |
t1.start(); |
554 |
> |
t2.start(); |
555 |
> |
lock.readLock().lock(); |
556 |
> |
lock.readLock().unlock(); |
557 |
> |
Thread.sleep(SHORT_DELAY_MS); |
558 |
> |
lock.readLock().lock(); |
559 |
> |
lock.readLock().unlock(); |
560 |
> |
lock.writeLock().unlock(); |
561 |
> |
t1.join(MEDIUM_DELAY_MS); |
562 |
> |
t2.join(MEDIUM_DELAY_MS); |
563 |
> |
assertTrue(!t1.isAlive()); |
564 |
> |
assertTrue(!t2.isAlive()); |
565 |
> |
} |
566 |
> |
|
567 |
> |
|
568 |
> |
/** |
569 |
> |
* Fair Write lock succeeds if write locked by current thread even if |
570 |
> |
* other threads are waiting for writelock |
571 |
> |
*/ |
572 |
> |
public void testWriteHoldingWriteLockFair4() throws InterruptedException { |
573 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
574 |
> |
lock.writeLock().lock(); |
575 |
> |
Thread t1 = new Thread(new Runnable() { |
576 |
> |
public void run() { |
577 |
> |
lock.writeLock().lock(); |
578 |
> |
lock.writeLock().unlock(); |
579 |
> |
} |
580 |
> |
}); |
581 |
> |
Thread t2 = new Thread(new Runnable() { |
582 |
> |
public void run() { |
583 |
> |
lock.writeLock().lock(); |
584 |
> |
lock.writeLock().unlock(); |
585 |
> |
} |
586 |
> |
}); |
587 |
> |
|
588 |
> |
t1.start(); |
589 |
> |
t2.start(); |
590 |
> |
Thread.sleep(SHORT_DELAY_MS); |
591 |
> |
assertTrue(lock.isWriteLockedByCurrentThread()); |
592 |
> |
assertTrue(lock.getWriteHoldCount() == 1); |
593 |
> |
lock.writeLock().lock(); |
594 |
> |
assertTrue(lock.getWriteHoldCount() == 2); |
595 |
> |
lock.writeLock().unlock(); |
596 |
> |
lock.writeLock().lock(); |
597 |
> |
lock.writeLock().unlock(); |
598 |
> |
lock.writeLock().unlock(); |
599 |
> |
t1.join(MEDIUM_DELAY_MS); |
600 |
> |
t2.join(MEDIUM_DELAY_MS); |
601 |
> |
assertTrue(!t1.isAlive()); |
602 |
> |
assertTrue(!t2.isAlive()); |
603 |
> |
} |
604 |
> |
|
605 |
> |
|
606 |
> |
/** |
607 |
> |
* Read tryLock succeeds if readlocked but not writelocked |
608 |
> |
*/ |
609 |
> |
public void testTryLockWhenReadLocked() throws InterruptedException { |
610 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
611 |
|
lock.readLock().lock(); |
612 |
|
Thread t = new Thread(new Runnable() { |
615 |
|
lock.readLock().unlock(); |
616 |
|
} |
617 |
|
}); |
389 |
– |
try { |
390 |
– |
t.start(); |
391 |
– |
t.join(); |
392 |
– |
lock.readLock().unlock(); |
393 |
– |
} catch(Exception e){ |
394 |
– |
unexpectedException(); |
395 |
– |
} |
396 |
– |
} |
618 |
|
|
619 |
< |
|
619 |
> |
t.start(); |
620 |
> |
t.join(); |
621 |
> |
lock.readLock().unlock(); |
622 |
> |
} |
623 |
> |
|
624 |
> |
|
625 |
|
|
626 |
|
/** |
627 |
< |
* write trylock fails when readlocked |
627 |
> |
* write tryLock fails when readlocked |
628 |
|
*/ |
629 |
< |
public void testWriteTryLockWhenReadLocked() { |
629 |
> |
public void testWriteTryLockWhenReadLocked() throws InterruptedException { |
630 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
631 |
|
lock.readLock().lock(); |
632 |
|
Thread t = new Thread(new Runnable() { |
634 |
|
threadAssertFalse(lock.writeLock().tryLock()); |
635 |
|
} |
636 |
|
}); |
411 |
– |
try { |
412 |
– |
t.start(); |
413 |
– |
t.join(); |
414 |
– |
lock.readLock().unlock(); |
415 |
– |
} catch(Exception e){ |
416 |
– |
unexpectedException(); |
417 |
– |
} |
418 |
– |
} |
637 |
|
|
638 |
< |
|
638 |
> |
t.start(); |
639 |
> |
t.join(); |
640 |
> |
lock.readLock().unlock(); |
641 |
> |
} |
642 |
> |
|
643 |
|
|
644 |
|
/** |
645 |
< |
* write timed trylock times out if locked |
645 |
> |
* Fair Read tryLock succeeds if readlocked but not writelocked |
646 |
|
*/ |
647 |
< |
public void testWriteTryLock_Timeout() { |
648 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
649 |
< |
lock.writeLock().lock(); |
647 |
> |
public void testTryLockWhenReadLockedFair() throws InterruptedException { |
648 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
649 |
> |
lock.readLock().lock(); |
650 |
|
Thread t = new Thread(new Runnable() { |
651 |
|
public void run() { |
652 |
< |
try { |
653 |
< |
threadAssertFalse(lock.writeLock().tryLock(1, TimeUnit.MILLISECONDS)); |
432 |
< |
} catch (Exception ex) { |
433 |
< |
threadUnexpectedException(); |
434 |
< |
} |
652 |
> |
threadAssertTrue(lock.readLock().tryLock()); |
653 |
> |
lock.readLock().unlock(); |
654 |
|
} |
655 |
|
}); |
656 |
< |
try { |
657 |
< |
t.start(); |
658 |
< |
t.join(); |
659 |
< |
lock.writeLock().unlock(); |
660 |
< |
} catch(Exception e){ |
661 |
< |
unexpectedException(); |
662 |
< |
} |
444 |
< |
} |
656 |
> |
|
657 |
> |
t.start(); |
658 |
> |
t.join(); |
659 |
> |
lock.readLock().unlock(); |
660 |
> |
} |
661 |
> |
|
662 |
> |
|
663 |
|
|
664 |
|
/** |
665 |
< |
* read timed trylock times out if write-locked |
665 |
> |
* Fair write tryLock fails when readlocked |
666 |
|
*/ |
667 |
< |
public void testReadTryLock_Timeout() { |
668 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
669 |
< |
lock.writeLock().lock(); |
667 |
> |
public void testWriteTryLockWhenReadLockedFair() throws InterruptedException { |
668 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
669 |
> |
lock.readLock().lock(); |
670 |
|
Thread t = new Thread(new Runnable() { |
671 |
|
public void run() { |
672 |
< |
try { |
455 |
< |
threadAssertFalse(lock.readLock().tryLock(1, TimeUnit.MILLISECONDS)); |
456 |
< |
} catch (Exception ex) { |
457 |
< |
threadUnexpectedException(); |
458 |
< |
} |
672 |
> |
threadAssertFalse(lock.writeLock().tryLock()); |
673 |
|
} |
674 |
|
}); |
675 |
< |
try { |
676 |
< |
t.start(); |
677 |
< |
t.join(); |
678 |
< |
lock.writeLock().unlock(); |
679 |
< |
} catch(Exception e){ |
680 |
< |
unexpectedException(); |
681 |
< |
} |
682 |
< |
} |
675 |
> |
|
676 |
> |
t.start(); |
677 |
> |
t.join(); |
678 |
> |
lock.readLock().unlock(); |
679 |
> |
} |
680 |
> |
|
681 |
> |
|
682 |
> |
|
683 |
> |
/** |
684 |
> |
* write timed tryLock times out if locked |
685 |
> |
*/ |
686 |
> |
public void testWriteTryLock_Timeout() throws InterruptedException { |
687 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
688 |
> |
lock.writeLock().lock(); |
689 |
> |
Thread t = new Thread(new CheckedRunnable() { |
690 |
> |
public void realRun() throws InterruptedException { |
691 |
> |
threadAssertFalse(lock.writeLock().tryLock(1, TimeUnit.MILLISECONDS)); |
692 |
> |
}}); |
693 |
> |
|
694 |
> |
t.start(); |
695 |
> |
t.join(); |
696 |
> |
lock.writeLock().unlock(); |
697 |
> |
} |
698 |
> |
|
699 |
> |
/** |
700 |
> |
* read timed tryLock times out if write-locked |
701 |
> |
*/ |
702 |
> |
public void testReadTryLock_Timeout() throws InterruptedException { |
703 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
704 |
> |
lock.writeLock().lock(); |
705 |
> |
Thread t = new Thread(new CheckedRunnable() { |
706 |
> |
public void realRun() throws InterruptedException { |
707 |
> |
threadAssertFalse(lock.readLock().tryLock(1, TimeUnit.MILLISECONDS)); |
708 |
> |
}}); |
709 |
> |
|
710 |
> |
t.start(); |
711 |
> |
t.join(); |
712 |
> |
lock.writeLock().unlock(); |
713 |
> |
} |
714 |
|
|
715 |
|
|
716 |
|
/** |
717 |
|
* write lockInterruptibly succeeds if lock free else is interruptible |
718 |
|
*/ |
719 |
< |
public void testWriteLockInterruptibly() { |
719 |
> |
public void testWriteLockInterruptibly() throws InterruptedException { |
720 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
721 |
< |
try { |
722 |
< |
lock.writeLock().lockInterruptibly(); |
723 |
< |
} catch(Exception e) { |
724 |
< |
unexpectedException(); |
725 |
< |
} |
726 |
< |
Thread t = new Thread(new Runnable() { |
727 |
< |
public void run() { |
728 |
< |
try { |
729 |
< |
lock.writeLock().lockInterruptibly(); |
730 |
< |
threadShouldThrow(); |
731 |
< |
} |
732 |
< |
catch(InterruptedException success) { |
488 |
< |
} |
489 |
< |
} |
490 |
< |
}); |
491 |
< |
try { |
492 |
< |
t.start(); |
493 |
< |
t.interrupt(); |
494 |
< |
t.join(); |
495 |
< |
lock.writeLock().unlock(); |
496 |
< |
} catch(Exception e){ |
497 |
< |
unexpectedException(); |
498 |
< |
} |
721 |
> |
lock.writeLock().lockInterruptibly(); |
722 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
723 |
> |
public void realRun() throws InterruptedException { |
724 |
> |
lock.writeLock().lockInterruptibly(); |
725 |
> |
}}); |
726 |
> |
|
727 |
> |
t.start(); |
728 |
> |
Thread.sleep(SHORT_DELAY_MS); |
729 |
> |
t.interrupt(); |
730 |
> |
Thread.sleep(SHORT_DELAY_MS); |
731 |
> |
t.join(); |
732 |
> |
lock.writeLock().unlock(); |
733 |
|
} |
734 |
|
|
735 |
|
/** |
736 |
|
* read lockInterruptibly succeeds if lock free else is interruptible |
737 |
|
*/ |
738 |
< |
public void testReadLockInterruptibly() { |
738 |
> |
public void testReadLockInterruptibly() throws InterruptedException { |
739 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
740 |
< |
try { |
741 |
< |
lock.writeLock().lockInterruptibly(); |
742 |
< |
} catch(Exception e) { |
743 |
< |
unexpectedException(); |
744 |
< |
} |
745 |
< |
Thread t = new Thread(new Runnable() { |
746 |
< |
public void run() { |
747 |
< |
try { |
748 |
< |
lock.readLock().lockInterruptibly(); |
749 |
< |
threadShouldThrow(); |
750 |
< |
} |
517 |
< |
catch(InterruptedException success) { |
518 |
< |
} |
519 |
< |
} |
520 |
< |
}); |
521 |
< |
try { |
522 |
< |
t.start(); |
523 |
< |
t.interrupt(); |
524 |
< |
t.join(); |
525 |
< |
lock.writeLock().unlock(); |
526 |
< |
} catch(Exception e){ |
527 |
< |
unexpectedException(); |
528 |
< |
} |
740 |
> |
lock.writeLock().lockInterruptibly(); |
741 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
742 |
> |
public void realRun() throws InterruptedException { |
743 |
> |
lock.readLock().lockInterruptibly(); |
744 |
> |
}}); |
745 |
> |
|
746 |
> |
t.start(); |
747 |
> |
Thread.sleep(SHORT_DELAY_MS); |
748 |
> |
t.interrupt(); |
749 |
> |
t.join(); |
750 |
> |
lock.writeLock().unlock(); |
751 |
|
} |
752 |
|
|
753 |
|
/** |
754 |
|
* Calling await without holding lock throws IllegalMonitorStateException |
755 |
|
*/ |
756 |
< |
public void testAwait_IllegalMonitor() { |
757 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
756 |
> |
public void testAwait_IllegalMonitor() throws InterruptedException { |
757 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
758 |
|
final Condition c = lock.writeLock().newCondition(); |
759 |
|
try { |
760 |
|
c.await(); |
761 |
|
shouldThrow(); |
762 |
< |
} |
541 |
< |
catch (IllegalMonitorStateException success) { |
542 |
< |
} |
543 |
< |
catch (Exception ex) { |
544 |
< |
shouldThrow(); |
545 |
< |
} |
762 |
> |
} catch (IllegalMonitorStateException success) {} |
763 |
|
} |
764 |
|
|
765 |
|
/** |
766 |
|
* Calling signal without holding lock throws IllegalMonitorStateException |
767 |
|
*/ |
768 |
|
public void testSignal_IllegalMonitor() { |
769 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
769 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
770 |
|
final Condition c = lock.writeLock().newCondition(); |
771 |
|
try { |
772 |
|
c.signal(); |
773 |
|
shouldThrow(); |
774 |
< |
} |
558 |
< |
catch (IllegalMonitorStateException success) { |
559 |
< |
} |
560 |
< |
catch (Exception ex) { |
561 |
< |
unexpectedException(); |
562 |
< |
} |
774 |
> |
} catch (IllegalMonitorStateException success) {} |
775 |
|
} |
776 |
|
|
777 |
|
/** |
778 |
|
* awaitNanos without a signal times out |
779 |
|
*/ |
780 |
< |
public void testAwaitNanos_Timeout() { |
781 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
780 |
> |
public void testAwaitNanos_Timeout() throws InterruptedException { |
781 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
782 |
|
final Condition c = lock.writeLock().newCondition(); |
783 |
< |
try { |
784 |
< |
lock.writeLock().lock(); |
785 |
< |
long t = c.awaitNanos(100); |
786 |
< |
assertTrue(t <= 0); |
787 |
< |
lock.writeLock().unlock(); |
576 |
< |
} |
577 |
< |
catch (Exception ex) { |
578 |
< |
unexpectedException(); |
579 |
< |
} |
783 |
> |
|
784 |
> |
lock.writeLock().lock(); |
785 |
> |
long t = c.awaitNanos(100); |
786 |
> |
assertTrue(t <= 0); |
787 |
> |
lock.writeLock().unlock(); |
788 |
|
} |
789 |
|
|
790 |
|
|
792 |
|
* timed await without a signal times out |
793 |
|
*/ |
794 |
|
public void testAwait_Timeout() { |
795 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
795 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
796 |
|
final Condition c = lock.writeLock().newCondition(); |
797 |
< |
try { |
798 |
< |
lock.writeLock().lock(); |
591 |
< |
assertFalse(c.await(10, TimeUnit.MILLISECONDS)); |
592 |
< |
lock.writeLock().unlock(); |
593 |
< |
} |
594 |
< |
catch (Exception ex) { |
595 |
< |
unexpectedException(); |
596 |
< |
} |
797 |
> |
lock.writeLock().lock(); |
798 |
> |
lock.writeLock().unlock(); |
799 |
|
} |
800 |
|
|
801 |
|
/** |
802 |
|
* awaitUntil without a signal times out |
803 |
|
*/ |
804 |
|
public void testAwaitUntil_Timeout() { |
805 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
805 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
806 |
|
final Condition c = lock.writeLock().newCondition(); |
807 |
< |
try { |
808 |
< |
lock.writeLock().lock(); |
809 |
< |
java.util.Date d = new java.util.Date(); |
608 |
< |
assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10))); |
609 |
< |
lock.writeLock().unlock(); |
610 |
< |
} |
611 |
< |
catch (Exception ex) { |
612 |
< |
unexpectedException(); |
613 |
< |
} |
807 |
> |
lock.writeLock().lock(); |
808 |
> |
java.util.Date d = new java.util.Date(); |
809 |
> |
lock.writeLock().unlock(); |
810 |
|
} |
811 |
|
|
812 |
|
/** |
813 |
|
* await returns when signalled |
814 |
|
*/ |
815 |
< |
public void testAwait() { |
816 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
815 |
> |
public void testAwait() throws InterruptedException { |
816 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
817 |
|
final Condition c = lock.writeLock().newCondition(); |
818 |
< |
Thread t = new Thread(new Runnable() { |
819 |
< |
public void run() { |
820 |
< |
try { |
821 |
< |
lock.writeLock().lock(); |
822 |
< |
c.await(); |
823 |
< |
lock.writeLock().unlock(); |
824 |
< |
} |
825 |
< |
catch(InterruptedException e) { |
826 |
< |
threadUnexpectedException(); |
827 |
< |
} |
828 |
< |
} |
829 |
< |
}); |
818 |
> |
Thread t = new Thread(new CheckedRunnable() { |
819 |
> |
public void realRun() throws InterruptedException { |
820 |
> |
lock.writeLock().lock(); |
821 |
> |
c.await(); |
822 |
> |
lock.writeLock().unlock(); |
823 |
> |
}}); |
824 |
> |
|
825 |
> |
t.start(); |
826 |
> |
Thread.sleep(SHORT_DELAY_MS); |
827 |
> |
lock.writeLock().lock(); |
828 |
> |
c.signal(); |
829 |
> |
lock.writeLock().unlock(); |
830 |
> |
t.join(SHORT_DELAY_MS); |
831 |
> |
assertFalse(t.isAlive()); |
832 |
> |
} |
833 |
> |
|
834 |
> |
/** A helper class for uninterruptible wait tests */ |
835 |
> |
class UninterruptableThread extends Thread { |
836 |
> |
private Lock lock; |
837 |
> |
private Condition c; |
838 |
> |
|
839 |
> |
public volatile boolean canAwake = false; |
840 |
> |
public volatile boolean interrupted = false; |
841 |
> |
public volatile boolean lockStarted = false; |
842 |
> |
|
843 |
> |
public UninterruptableThread(Lock lock, Condition c) { |
844 |
> |
this.lock = lock; |
845 |
> |
this.c = c; |
846 |
> |
} |
847 |
> |
|
848 |
> |
public synchronized void run() { |
849 |
> |
lock.lock(); |
850 |
> |
lockStarted = true; |
851 |
> |
|
852 |
> |
while (!canAwake) { |
853 |
> |
c.awaitUninterruptibly(); |
854 |
> |
} |
855 |
|
|
856 |
< |
try { |
857 |
< |
t.start(); |
637 |
< |
Thread.sleep(SHORT_DELAY_MS); |
638 |
< |
lock.writeLock().lock(); |
639 |
< |
c.signal(); |
640 |
< |
lock.writeLock().unlock(); |
641 |
< |
t.join(SHORT_DELAY_MS); |
642 |
< |
assertFalse(t.isAlive()); |
643 |
< |
} |
644 |
< |
catch (Exception ex) { |
645 |
< |
unexpectedException(); |
856 |
> |
interrupted = isInterrupted(); |
857 |
> |
lock.unlock(); |
858 |
|
} |
859 |
|
} |
860 |
|
|
861 |
|
/** |
862 |
|
* awaitUninterruptibly doesn't abort on interrupt |
863 |
|
*/ |
864 |
< |
public void testAwaitUninterruptibly() { |
865 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
864 |
> |
public void testAwaitUninterruptibly() throws InterruptedException { |
865 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
866 |
|
final Condition c = lock.writeLock().newCondition(); |
867 |
< |
Thread t = new Thread(new Runnable() { |
868 |
< |
public void run() { |
869 |
< |
lock.writeLock().lock(); |
658 |
< |
c.awaitUninterruptibly(); |
659 |
< |
lock.writeLock().unlock(); |
660 |
< |
} |
661 |
< |
}); |
867 |
> |
UninterruptableThread thread = new UninterruptableThread(lock.writeLock(), c); |
868 |
> |
|
869 |
> |
thread.start(); |
870 |
|
|
871 |
+ |
while (!thread.lockStarted) { |
872 |
+ |
Thread.sleep(100); |
873 |
+ |
} |
874 |
+ |
|
875 |
+ |
lock.writeLock().lock(); |
876 |
|
try { |
877 |
< |
t.start(); |
878 |
< |
Thread.sleep(SHORT_DELAY_MS); |
666 |
< |
t.interrupt(); |
667 |
< |
lock.writeLock().lock(); |
877 |
> |
thread.interrupt(); |
878 |
> |
thread.canAwake = true; |
879 |
|
c.signal(); |
880 |
+ |
} finally { |
881 |
|
lock.writeLock().unlock(); |
670 |
– |
assert(t.isInterrupted()); |
671 |
– |
t.join(SHORT_DELAY_MS); |
672 |
– |
assertFalse(t.isAlive()); |
673 |
– |
} |
674 |
– |
catch (Exception ex) { |
675 |
– |
unexpectedException(); |
882 |
|
} |
883 |
+ |
|
884 |
+ |
thread.join(); |
885 |
+ |
assertTrue(thread.interrupted); |
886 |
+ |
assertFalse(thread.isAlive()); |
887 |
|
} |
888 |
|
|
889 |
|
/** |
890 |
|
* await is interruptible |
891 |
|
*/ |
892 |
< |
public void testAwait_Interrupt() { |
893 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
892 |
> |
public void testAwait_Interrupt() throws InterruptedException { |
893 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
894 |
|
final Condition c = lock.writeLock().newCondition(); |
895 |
< |
Thread t = new Thread(new Runnable() { |
896 |
< |
public void run() { |
897 |
< |
try { |
898 |
< |
lock.writeLock().lock(); |
899 |
< |
c.await(); |
900 |
< |
lock.writeLock().unlock(); |
901 |
< |
threadShouldThrow(); |
902 |
< |
} |
903 |
< |
catch(InterruptedException success) { |
904 |
< |
} |
905 |
< |
} |
906 |
< |
}); |
697 |
< |
|
698 |
< |
try { |
699 |
< |
t.start(); |
700 |
< |
Thread.sleep(SHORT_DELAY_MS); |
701 |
< |
t.interrupt(); |
702 |
< |
t.join(SHORT_DELAY_MS); |
703 |
< |
assertFalse(t.isAlive()); |
704 |
< |
} |
705 |
< |
catch (Exception ex) { |
706 |
< |
unexpectedException(); |
707 |
< |
} |
895 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
896 |
> |
public void realRun() throws InterruptedException { |
897 |
> |
lock.writeLock().lock(); |
898 |
> |
c.await(); |
899 |
> |
lock.writeLock().unlock(); |
900 |
> |
}}); |
901 |
> |
|
902 |
> |
t.start(); |
903 |
> |
Thread.sleep(SHORT_DELAY_MS); |
904 |
> |
t.interrupt(); |
905 |
> |
t.join(SHORT_DELAY_MS); |
906 |
> |
assertFalse(t.isAlive()); |
907 |
|
} |
908 |
|
|
909 |
|
/** |
910 |
|
* awaitNanos is interruptible |
911 |
|
*/ |
912 |
< |
public void testAwaitNanos_Interrupt() { |
913 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
912 |
> |
public void testAwaitNanos_Interrupt() throws InterruptedException { |
913 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
914 |
|
final Condition c = lock.writeLock().newCondition(); |
915 |
< |
Thread t = new Thread(new Runnable() { |
916 |
< |
public void run() { |
917 |
< |
try { |
918 |
< |
lock.writeLock().lock(); |
919 |
< |
c.awaitNanos(SHORT_DELAY_MS * 2 * 1000000); |
920 |
< |
lock.writeLock().unlock(); |
921 |
< |
threadShouldThrow(); |
922 |
< |
} |
923 |
< |
catch(InterruptedException success) { |
924 |
< |
} |
925 |
< |
} |
926 |
< |
}); |
728 |
< |
|
729 |
< |
try { |
730 |
< |
t.start(); |
731 |
< |
Thread.sleep(SHORT_DELAY_MS); |
732 |
< |
t.interrupt(); |
733 |
< |
t.join(SHORT_DELAY_MS); |
734 |
< |
assertFalse(t.isAlive()); |
735 |
< |
} |
736 |
< |
catch (Exception ex) { |
737 |
< |
unexpectedException(); |
738 |
< |
} |
915 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
916 |
> |
public void realRun() throws InterruptedException { |
917 |
> |
lock.writeLock().lock(); |
918 |
> |
c.awaitNanos(SHORT_DELAY_MS * 2 * 1000000); |
919 |
> |
lock.writeLock().unlock(); |
920 |
> |
}}); |
921 |
> |
|
922 |
> |
t.start(); |
923 |
> |
Thread.sleep(SHORT_DELAY_MS); |
924 |
> |
t.interrupt(); |
925 |
> |
t.join(SHORT_DELAY_MS); |
926 |
> |
assertFalse(t.isAlive()); |
927 |
|
} |
928 |
|
|
929 |
|
/** |
930 |
|
* awaitUntil is interruptible |
931 |
|
*/ |
932 |
< |
public void testAwaitUntil_Interrupt() { |
933 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
932 |
> |
public void testAwaitUntil_Interrupt() throws InterruptedException { |
933 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
934 |
|
final Condition c = lock.writeLock().newCondition(); |
935 |
< |
Thread t = new Thread(new Runnable() { |
936 |
< |
public void run() { |
937 |
< |
try { |
938 |
< |
lock.writeLock().lock(); |
939 |
< |
java.util.Date d = new java.util.Date(); |
940 |
< |
c.awaitUntil(new java.util.Date(d.getTime() + 10000)); |
941 |
< |
lock.writeLock().unlock(); |
942 |
< |
threadShouldThrow(); |
943 |
< |
} |
944 |
< |
catch(InterruptedException success) { |
945 |
< |
} |
946 |
< |
} |
947 |
< |
}); |
760 |
< |
|
761 |
< |
try { |
762 |
< |
t.start(); |
763 |
< |
Thread.sleep(SHORT_DELAY_MS); |
764 |
< |
t.interrupt(); |
765 |
< |
t.join(SHORT_DELAY_MS); |
766 |
< |
assertFalse(t.isAlive()); |
767 |
< |
} |
768 |
< |
catch (Exception ex) { |
769 |
< |
unexpectedException(); |
770 |
< |
} |
935 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
936 |
> |
public void realRun() throws InterruptedException { |
937 |
> |
lock.writeLock().lock(); |
938 |
> |
java.util.Date d = new java.util.Date(); |
939 |
> |
c.awaitUntil(new java.util.Date(d.getTime() + 10000)); |
940 |
> |
lock.writeLock().unlock(); |
941 |
> |
}}); |
942 |
> |
|
943 |
> |
t.start(); |
944 |
> |
Thread.sleep(SHORT_DELAY_MS); |
945 |
> |
t.interrupt(); |
946 |
> |
t.join(SHORT_DELAY_MS); |
947 |
> |
assertFalse(t.isAlive()); |
948 |
|
} |
949 |
|
|
950 |
|
/** |
951 |
|
* signalAll wakes up all threads |
952 |
|
*/ |
953 |
< |
public void testSignalAll() { |
954 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
953 |
> |
public void testSignalAll() throws InterruptedException { |
954 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
955 |
|
final Condition c = lock.writeLock().newCondition(); |
956 |
< |
Thread t1 = new Thread(new Runnable() { |
957 |
< |
public void run() { |
958 |
< |
try { |
959 |
< |
lock.writeLock().lock(); |
960 |
< |
c.await(); |
961 |
< |
lock.writeLock().unlock(); |
962 |
< |
} |
963 |
< |
catch(InterruptedException e) { |
964 |
< |
threadUnexpectedException(); |
965 |
< |
} |
966 |
< |
} |
967 |
< |
}); |
968 |
< |
|
969 |
< |
Thread t2 = new Thread(new Runnable() { |
970 |
< |
public void run() { |
971 |
< |
try { |
972 |
< |
lock.writeLock().lock(); |
973 |
< |
c.await(); |
974 |
< |
lock.writeLock().unlock(); |
975 |
< |
} |
976 |
< |
catch(InterruptedException e) { |
977 |
< |
threadUnexpectedException(); |
978 |
< |
} |
979 |
< |
} |
803 |
< |
}); |
804 |
< |
|
805 |
< |
try { |
806 |
< |
t1.start(); |
807 |
< |
t2.start(); |
808 |
< |
Thread.sleep(SHORT_DELAY_MS); |
809 |
< |
lock.writeLock().lock(); |
810 |
< |
c.signalAll(); |
811 |
< |
lock.writeLock().unlock(); |
812 |
< |
t1.join(SHORT_DELAY_MS); |
813 |
< |
t2.join(SHORT_DELAY_MS); |
814 |
< |
assertFalse(t1.isAlive()); |
815 |
< |
assertFalse(t2.isAlive()); |
816 |
< |
} |
817 |
< |
catch (Exception ex) { |
818 |
< |
unexpectedException(); |
819 |
< |
} |
956 |
> |
Thread t1 = new Thread(new CheckedRunnable() { |
957 |
> |
public void realRun() throws InterruptedException { |
958 |
> |
lock.writeLock().lock(); |
959 |
> |
c.await(); |
960 |
> |
lock.writeLock().unlock(); |
961 |
> |
}}); |
962 |
> |
|
963 |
> |
Thread t2 = new Thread(new CheckedRunnable() { |
964 |
> |
public void realRun() throws InterruptedException { |
965 |
> |
lock.writeLock().lock(); |
966 |
> |
c.await(); |
967 |
> |
lock.writeLock().unlock(); |
968 |
> |
}}); |
969 |
> |
|
970 |
> |
t1.start(); |
971 |
> |
t2.start(); |
972 |
> |
Thread.sleep(SHORT_DELAY_MS); |
973 |
> |
lock.writeLock().lock(); |
974 |
> |
c.signalAll(); |
975 |
> |
lock.writeLock().unlock(); |
976 |
> |
t1.join(SHORT_DELAY_MS); |
977 |
> |
t2.join(SHORT_DELAY_MS); |
978 |
> |
assertFalse(t1.isAlive()); |
979 |
> |
assertFalse(t2.isAlive()); |
980 |
|
} |
981 |
|
|
982 |
|
/** |
983 |
|
* A serialized lock deserializes as unlocked |
984 |
|
*/ |
985 |
< |
public void testSerialization() { |
985 |
> |
public void testSerialization() throws Exception { |
986 |
|
ReentrantReadWriteLock l = new ReentrantReadWriteLock(); |
987 |
|
l.readLock().lock(); |
988 |
|
l.readLock().unlock(); |
989 |
|
|
990 |
+ |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
991 |
+ |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
992 |
+ |
out.writeObject(l); |
993 |
+ |
out.close(); |
994 |
+ |
|
995 |
+ |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
996 |
+ |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
997 |
+ |
ReentrantReadWriteLock r = (ReentrantReadWriteLock) in.readObject(); |
998 |
+ |
r.readLock().lock(); |
999 |
+ |
r.readLock().unlock(); |
1000 |
+ |
} |
1001 |
+ |
|
1002 |
+ |
/** |
1003 |
+ |
* hasQueuedThreads reports whether there are waiting threads |
1004 |
+ |
*/ |
1005 |
+ |
public void testhasQueuedThreads() throws InterruptedException { |
1006 |
+ |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1007 |
+ |
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
1008 |
+ |
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
1009 |
+ |
assertFalse(lock.hasQueuedThreads()); |
1010 |
+ |
lock.writeLock().lock(); |
1011 |
+ |
t1.start(); |
1012 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1013 |
+ |
assertTrue(lock.hasQueuedThreads()); |
1014 |
+ |
t2.start(); |
1015 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1016 |
+ |
assertTrue(lock.hasQueuedThreads()); |
1017 |
+ |
t1.interrupt(); |
1018 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1019 |
+ |
assertTrue(lock.hasQueuedThreads()); |
1020 |
+ |
lock.writeLock().unlock(); |
1021 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1022 |
+ |
assertFalse(lock.hasQueuedThreads()); |
1023 |
+ |
t1.join(); |
1024 |
+ |
t2.join(); |
1025 |
+ |
} |
1026 |
+ |
|
1027 |
+ |
/** |
1028 |
+ |
* hasQueuedThread(null) throws NPE |
1029 |
+ |
*/ |
1030 |
+ |
public void testHasQueuedThreadNPE() { |
1031 |
+ |
final ReentrantReadWriteLock sync = new ReentrantReadWriteLock(); |
1032 |
|
try { |
1033 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
1034 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
1035 |
< |
out.writeObject(l); |
834 |
< |
out.close(); |
835 |
< |
|
836 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
837 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
838 |
< |
ReentrantReadWriteLock r = (ReentrantReadWriteLock) in.readObject(); |
839 |
< |
r.readLock().lock(); |
840 |
< |
r.readLock().unlock(); |
841 |
< |
} catch(Exception e){ |
842 |
< |
e.printStackTrace(); |
843 |
< |
unexpectedException(); |
844 |
< |
} |
1033 |
> |
sync.hasQueuedThread(null); |
1034 |
> |
shouldThrow(); |
1035 |
> |
} catch (NullPointerException success) {} |
1036 |
|
} |
1037 |
|
|
1038 |
|
/** |
1039 |
+ |
* hasQueuedThread reports whether a thread is queued. |
1040 |
+ |
*/ |
1041 |
+ |
public void testHasQueuedThread() throws InterruptedException { |
1042 |
+ |
final ReentrantReadWriteLock sync = new ReentrantReadWriteLock(); |
1043 |
+ |
Thread t1 = new Thread(new InterruptedLockRunnable(sync)); |
1044 |
+ |
Thread t2 = new Thread(new InterruptibleLockRunnable(sync)); |
1045 |
+ |
assertFalse(sync.hasQueuedThread(t1)); |
1046 |
+ |
assertFalse(sync.hasQueuedThread(t2)); |
1047 |
+ |
sync.writeLock().lock(); |
1048 |
+ |
t1.start(); |
1049 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1050 |
+ |
assertTrue(sync.hasQueuedThread(t1)); |
1051 |
+ |
t2.start(); |
1052 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1053 |
+ |
assertTrue(sync.hasQueuedThread(t1)); |
1054 |
+ |
assertTrue(sync.hasQueuedThread(t2)); |
1055 |
+ |
t1.interrupt(); |
1056 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1057 |
+ |
assertFalse(sync.hasQueuedThread(t1)); |
1058 |
+ |
assertTrue(sync.hasQueuedThread(t2)); |
1059 |
+ |
sync.writeLock().unlock(); |
1060 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1061 |
+ |
assertFalse(sync.hasQueuedThread(t1)); |
1062 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1063 |
+ |
assertFalse(sync.hasQueuedThread(t2)); |
1064 |
+ |
t1.join(); |
1065 |
+ |
t2.join(); |
1066 |
+ |
} |
1067 |
+ |
|
1068 |
+ |
|
1069 |
+ |
/** |
1070 |
|
* getQueueLength reports number of waiting threads |
1071 |
|
*/ |
1072 |
< |
public void testGetQueueLength() { |
1072 |
> |
public void testGetQueueLength() throws InterruptedException { |
1073 |
|
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1074 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
1075 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
1076 |
< |
try { |
1077 |
< |
assertEquals(0, lock.getQueueLength()); |
1078 |
< |
lock.writeLock().lock(); |
1079 |
< |
t1.start(); |
1080 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1081 |
< |
assertEquals(1, lock.getQueueLength()); |
1082 |
< |
t2.start(); |
1083 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1084 |
< |
assertEquals(2, lock.getQueueLength()); |
1085 |
< |
t1.interrupt(); |
1086 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1087 |
< |
assertEquals(1, lock.getQueueLength()); |
1088 |
< |
lock.writeLock().unlock(); |
1089 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1090 |
< |
assertEquals(0, lock.getQueueLength()); |
1091 |
< |
t1.join(); |
1092 |
< |
t2.join(); |
871 |
< |
} catch(Exception e){ |
872 |
< |
unexpectedException(); |
873 |
< |
} |
874 |
< |
} |
1076 |
> |
assertEquals(0, lock.getQueueLength()); |
1077 |
> |
lock.writeLock().lock(); |
1078 |
> |
t1.start(); |
1079 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1080 |
> |
assertEquals(1, lock.getQueueLength()); |
1081 |
> |
t2.start(); |
1082 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1083 |
> |
assertEquals(2, lock.getQueueLength()); |
1084 |
> |
t1.interrupt(); |
1085 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1086 |
> |
assertEquals(1, lock.getQueueLength()); |
1087 |
> |
lock.writeLock().unlock(); |
1088 |
> |
Thread.sleep(SHORT_DELAY_MS); |
1089 |
> |
assertEquals(0, lock.getQueueLength()); |
1090 |
> |
t1.join(); |
1091 |
> |
t2.join(); |
1092 |
> |
} |
1093 |
|
|
1094 |
|
/** |
1095 |
|
* getQueuedThreads includes waiting threads |
1096 |
|
*/ |
1097 |
< |
public void testGetQueuedThreads() { |
1097 |
> |
public void testGetQueuedThreads() throws InterruptedException { |
1098 |
|
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1099 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
1100 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
1101 |
+ |
assertTrue(lock.getQueuedThreads().isEmpty()); |
1102 |
+ |
lock.writeLock().lock(); |
1103 |
+ |
assertTrue(lock.getQueuedThreads().isEmpty()); |
1104 |
+ |
t1.start(); |
1105 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1106 |
+ |
assertTrue(lock.getQueuedThreads().contains(t1)); |
1107 |
+ |
t2.start(); |
1108 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1109 |
+ |
assertTrue(lock.getQueuedThreads().contains(t1)); |
1110 |
+ |
assertTrue(lock.getQueuedThreads().contains(t2)); |
1111 |
+ |
t1.interrupt(); |
1112 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1113 |
+ |
assertFalse(lock.getQueuedThreads().contains(t1)); |
1114 |
+ |
assertTrue(lock.getQueuedThreads().contains(t2)); |
1115 |
+ |
lock.writeLock().unlock(); |
1116 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1117 |
+ |
assertTrue(lock.getQueuedThreads().isEmpty()); |
1118 |
+ |
t1.join(); |
1119 |
+ |
t2.join(); |
1120 |
+ |
} |
1121 |
+ |
|
1122 |
+ |
/** |
1123 |
+ |
* hasWaiters throws NPE if null |
1124 |
+ |
*/ |
1125 |
+ |
public void testHasWaitersNPE() { |
1126 |
+ |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1127 |
|
try { |
1128 |
< |
assertTrue(lock.getQueuedThreads().isEmpty()); |
1129 |
< |
lock.writeLock().lock(); |
1130 |
< |
assertTrue(lock.getQueuedThreads().isEmpty()); |
1131 |
< |
t1.start(); |
888 |
< |
Thread.sleep(SHORT_DELAY_MS); |
889 |
< |
assertTrue(lock.getQueuedThreads().contains(t1)); |
890 |
< |
t2.start(); |
891 |
< |
Thread.sleep(SHORT_DELAY_MS); |
892 |
< |
assertTrue(lock.getQueuedThreads().contains(t1)); |
893 |
< |
assertTrue(lock.getQueuedThreads().contains(t2)); |
894 |
< |
t1.interrupt(); |
895 |
< |
Thread.sleep(SHORT_DELAY_MS); |
896 |
< |
assertFalse(lock.getQueuedThreads().contains(t1)); |
897 |
< |
assertTrue(lock.getQueuedThreads().contains(t2)); |
898 |
< |
lock.writeLock().unlock(); |
899 |
< |
Thread.sleep(SHORT_DELAY_MS); |
900 |
< |
assertTrue(lock.getQueuedThreads().isEmpty()); |
901 |
< |
t1.join(); |
902 |
< |
t2.join(); |
903 |
< |
} catch(Exception e){ |
904 |
< |
unexpectedException(); |
905 |
< |
} |
906 |
< |
} |
1128 |
> |
lock.hasWaiters(null); |
1129 |
> |
shouldThrow(); |
1130 |
> |
} catch (NullPointerException success) {} |
1131 |
> |
} |
1132 |
|
|
1133 |
|
/** |
1134 |
< |
* hasWaiters returns true when a thread is waiting, else false |
1134 |
> |
* getWaitQueueLength throws NPE if null |
1135 |
|
*/ |
1136 |
< |
public void testHasWaiters() { |
1137 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1138 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = (lock.writeLock().newCondition()); |
1139 |
< |
Thread t = new Thread(new Runnable() { |
1140 |
< |
public void run() { |
1141 |
< |
try { |
1142 |
< |
lock.writeLock().lock(); |
918 |
< |
threadAssertFalse(c.hasWaiters()); |
919 |
< |
threadAssertEquals(0, c.getWaitQueueLength()); |
920 |
< |
c.await(); |
921 |
< |
lock.writeLock().unlock(); |
922 |
< |
} |
923 |
< |
catch(InterruptedException e) { |
924 |
< |
threadUnexpectedException(); |
925 |
< |
} |
926 |
< |
} |
927 |
< |
}); |
1136 |
> |
public void testGetWaitQueueLengthNPE() { |
1137 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1138 |
> |
try { |
1139 |
> |
lock.getWaitQueueLength(null); |
1140 |
> |
shouldThrow(); |
1141 |
> |
} catch (NullPointerException success) {} |
1142 |
> |
} |
1143 |
|
|
1144 |
+ |
|
1145 |
+ |
/** |
1146 |
+ |
* getWaitingThreads throws NPE if null |
1147 |
+ |
*/ |
1148 |
+ |
public void testGetWaitingThreadsNPE() { |
1149 |
+ |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1150 |
|
try { |
1151 |
< |
t.start(); |
1152 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1153 |
< |
lock.writeLock().lock(); |
933 |
< |
assertTrue(c.hasWaiters()); |
934 |
< |
assertEquals(1, c.getWaitQueueLength()); |
935 |
< |
c.signal(); |
936 |
< |
lock.writeLock().unlock(); |
937 |
< |
Thread.sleep(SHORT_DELAY_MS); |
938 |
< |
lock.writeLock().lock(); |
939 |
< |
assertFalse(c.hasWaiters()); |
940 |
< |
assertEquals(0, c.getWaitQueueLength()); |
941 |
< |
lock.writeLock().unlock(); |
942 |
< |
t.join(SHORT_DELAY_MS); |
943 |
< |
assertFalse(t.isAlive()); |
944 |
< |
} |
945 |
< |
catch (Exception ex) { |
946 |
< |
unexpectedException(); |
947 |
< |
} |
1151 |
> |
lock.getWaitingThreads(null); |
1152 |
> |
shouldThrow(); |
1153 |
> |
} catch (NullPointerException success) {} |
1154 |
|
} |
1155 |
|
|
1156 |
|
/** |
1157 |
< |
* getWaitQueueLength returns number of waiting threads |
1157 |
> |
* hasWaiters throws IAE if not owned |
1158 |
|
*/ |
1159 |
< |
public void testGetWaitQueueLength() { |
1160 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1161 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = (lock.writeLock().newCondition()); |
1162 |
< |
Thread t1 = new Thread(new Runnable() { |
1163 |
< |
public void run() { |
1164 |
< |
try { |
1165 |
< |
lock.writeLock().lock(); |
1166 |
< |
threadAssertFalse(c.hasWaiters()); |
1167 |
< |
threadAssertEquals(0, c.getWaitQueueLength()); |
962 |
< |
c.await(); |
963 |
< |
lock.writeLock().unlock(); |
964 |
< |
} |
965 |
< |
catch(InterruptedException e) { |
966 |
< |
threadUnexpectedException(); |
967 |
< |
} |
968 |
< |
} |
969 |
< |
}); |
1159 |
> |
public void testHasWaitersIAE() { |
1160 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1161 |
> |
final Condition c = lock.writeLock().newCondition(); |
1162 |
> |
final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(); |
1163 |
> |
try { |
1164 |
> |
lock2.hasWaiters(c); |
1165 |
> |
shouldThrow(); |
1166 |
> |
} catch (IllegalArgumentException success) {} |
1167 |
> |
} |
1168 |
|
|
1169 |
< |
Thread t2 = new Thread(new Runnable() { |
1170 |
< |
public void run() { |
1171 |
< |
try { |
1172 |
< |
lock.writeLock().lock(); |
1173 |
< |
threadAssertTrue(c.hasWaiters()); |
1174 |
< |
threadAssertEquals(1, c.getWaitQueueLength()); |
1175 |
< |
c.await(); |
1176 |
< |
lock.writeLock().unlock(); |
1177 |
< |
} |
1178 |
< |
catch(InterruptedException e) { |
1179 |
< |
threadUnexpectedException(); |
982 |
< |
} |
983 |
< |
} |
984 |
< |
}); |
1169 |
> |
/** |
1170 |
> |
* hasWaiters throws IMSE if not locked |
1171 |
> |
*/ |
1172 |
> |
public void testHasWaitersIMSE() { |
1173 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1174 |
> |
final Condition c = lock.writeLock().newCondition(); |
1175 |
> |
try { |
1176 |
> |
lock.hasWaiters(c); |
1177 |
> |
shouldThrow(); |
1178 |
> |
} catch (IllegalMonitorStateException success) {} |
1179 |
> |
} |
1180 |
|
|
1181 |
+ |
|
1182 |
+ |
/** |
1183 |
+ |
* getWaitQueueLength throws IAE if not owned |
1184 |
+ |
*/ |
1185 |
+ |
public void testGetWaitQueueLengthIAE() { |
1186 |
+ |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1187 |
+ |
final Condition c = lock.writeLock().newCondition(); |
1188 |
+ |
final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(); |
1189 |
|
try { |
1190 |
< |
t1.start(); |
1191 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1192 |
< |
t2.start(); |
1193 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1194 |
< |
lock.writeLock().lock(); |
1195 |
< |
assertTrue(c.hasWaiters()); |
1196 |
< |
assertEquals(2, c.getWaitQueueLength()); |
1197 |
< |
c.signalAll(); |
1198 |
< |
lock.writeLock().unlock(); |
1199 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1200 |
< |
lock.writeLock().lock(); |
1201 |
< |
assertFalse(c.hasWaiters()); |
1202 |
< |
assertEquals(0, c.getWaitQueueLength()); |
1203 |
< |
lock.writeLock().unlock(); |
1204 |
< |
t1.join(SHORT_DELAY_MS); |
1205 |
< |
t2.join(SHORT_DELAY_MS); |
1206 |
< |
assertFalse(t1.isAlive()); |
1207 |
< |
assertFalse(t2.isAlive()); |
1208 |
< |
} |
1209 |
< |
catch (Exception ex) { |
1210 |
< |
unexpectedException(); |
1211 |
< |
} |
1190 |
> |
lock2.getWaitQueueLength(c); |
1191 |
> |
shouldThrow(); |
1192 |
> |
} catch (IllegalArgumentException success) {} |
1193 |
> |
} |
1194 |
> |
|
1195 |
> |
/** |
1196 |
> |
* getWaitQueueLength throws IMSE if not locked |
1197 |
> |
*/ |
1198 |
> |
public void testGetWaitQueueLengthIMSE() { |
1199 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1200 |
> |
final Condition c = lock.writeLock().newCondition(); |
1201 |
> |
try { |
1202 |
> |
lock.getWaitQueueLength(c); |
1203 |
> |
shouldThrow(); |
1204 |
> |
} catch (IllegalMonitorStateException success) {} |
1205 |
> |
} |
1206 |
> |
|
1207 |
> |
|
1208 |
> |
/** |
1209 |
> |
* getWaitingThreads throws IAE if not owned |
1210 |
> |
*/ |
1211 |
> |
public void testGetWaitingThreadsIAE() { |
1212 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1213 |
> |
final Condition c = lock.writeLock().newCondition(); |
1214 |
> |
final PublicReentrantReadWriteLock lock2 = new PublicReentrantReadWriteLock(); |
1215 |
> |
try { |
1216 |
> |
lock2.getWaitingThreads(c); |
1217 |
> |
shouldThrow(); |
1218 |
> |
} catch (IllegalArgumentException success) {} |
1219 |
> |
} |
1220 |
> |
|
1221 |
> |
/** |
1222 |
> |
* getWaitingThreads throws IMSE if not locked |
1223 |
> |
*/ |
1224 |
> |
public void testGetWaitingThreadsIMSE() { |
1225 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1226 |
> |
final Condition c = lock.writeLock().newCondition(); |
1227 |
> |
try { |
1228 |
> |
lock.getWaitingThreads(c); |
1229 |
> |
shouldThrow(); |
1230 |
> |
} catch (IllegalMonitorStateException success) {} |
1231 |
|
} |
1232 |
+ |
|
1233 |
+ |
|
1234 |
+ |
/** |
1235 |
+ |
* hasWaiters returns true when a thread is waiting, else false |
1236 |
+ |
*/ |
1237 |
+ |
public void testHasWaiters() throws InterruptedException { |
1238 |
+ |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1239 |
+ |
final Condition c = lock.writeLock().newCondition(); |
1240 |
+ |
Thread t = new Thread(new CheckedRunnable() { |
1241 |
+ |
public void realRun() throws InterruptedException { |
1242 |
+ |
lock.writeLock().lock(); |
1243 |
+ |
threadAssertFalse(lock.hasWaiters(c)); |
1244 |
+ |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
1245 |
+ |
c.await(); |
1246 |
+ |
lock.writeLock().unlock(); |
1247 |
+ |
}}); |
1248 |
+ |
|
1249 |
+ |
t.start(); |
1250 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1251 |
+ |
lock.writeLock().lock(); |
1252 |
+ |
assertTrue(lock.hasWaiters(c)); |
1253 |
+ |
assertEquals(1, lock.getWaitQueueLength(c)); |
1254 |
+ |
c.signal(); |
1255 |
+ |
lock.writeLock().unlock(); |
1256 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1257 |
+ |
lock.writeLock().lock(); |
1258 |
+ |
assertFalse(lock.hasWaiters(c)); |
1259 |
+ |
assertEquals(0, lock.getWaitQueueLength(c)); |
1260 |
+ |
lock.writeLock().unlock(); |
1261 |
+ |
t.join(SHORT_DELAY_MS); |
1262 |
+ |
assertFalse(t.isAlive()); |
1263 |
+ |
} |
1264 |
+ |
|
1265 |
+ |
/** |
1266 |
+ |
* getWaitQueueLength returns number of waiting threads |
1267 |
+ |
*/ |
1268 |
+ |
public void testGetWaitQueueLength() throws InterruptedException { |
1269 |
+ |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1270 |
+ |
final Condition c = lock.writeLock().newCondition(); |
1271 |
+ |
Thread t = new Thread(new CheckedRunnable() { |
1272 |
+ |
public void realRun() throws InterruptedException { |
1273 |
+ |
lock.writeLock().lock(); |
1274 |
+ |
threadAssertFalse(lock.hasWaiters(c)); |
1275 |
+ |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
1276 |
+ |
c.await(); |
1277 |
+ |
lock.writeLock().unlock(); |
1278 |
+ |
}}); |
1279 |
+ |
|
1280 |
+ |
t.start(); |
1281 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1282 |
+ |
lock.writeLock().lock(); |
1283 |
+ |
assertTrue(lock.hasWaiters(c)); |
1284 |
+ |
assertEquals(1, lock.getWaitQueueLength(c)); |
1285 |
+ |
c.signal(); |
1286 |
+ |
lock.writeLock().unlock(); |
1287 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1288 |
+ |
lock.writeLock().lock(); |
1289 |
+ |
assertFalse(lock.hasWaiters(c)); |
1290 |
+ |
assertEquals(0, lock.getWaitQueueLength(c)); |
1291 |
+ |
lock.writeLock().unlock(); |
1292 |
+ |
t.join(SHORT_DELAY_MS); |
1293 |
+ |
assertFalse(t.isAlive()); |
1294 |
+ |
} |
1295 |
+ |
|
1296 |
+ |
|
1297 |
+ |
/** |
1298 |
+ |
* getWaitingThreads returns only and all waiting threads |
1299 |
+ |
*/ |
1300 |
+ |
public void testGetWaitingThreads() throws InterruptedException { |
1301 |
+ |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1302 |
+ |
final Condition c = lock.writeLock().newCondition(); |
1303 |
+ |
Thread t1 = new Thread(new CheckedRunnable() { |
1304 |
+ |
public void realRun() throws InterruptedException { |
1305 |
+ |
lock.writeLock().lock(); |
1306 |
+ |
threadAssertTrue(lock.getWaitingThreads(c).isEmpty()); |
1307 |
+ |
c.await(); |
1308 |
+ |
lock.writeLock().unlock(); |
1309 |
+ |
}}); |
1310 |
+ |
|
1311 |
+ |
Thread t2 = new Thread(new CheckedRunnable() { |
1312 |
+ |
public void realRun() throws InterruptedException { |
1313 |
+ |
lock.writeLock().lock(); |
1314 |
+ |
threadAssertFalse(lock.getWaitingThreads(c).isEmpty()); |
1315 |
+ |
c.await(); |
1316 |
+ |
lock.writeLock().unlock(); |
1317 |
+ |
}}); |
1318 |
+ |
|
1319 |
+ |
lock.writeLock().lock(); |
1320 |
+ |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
1321 |
+ |
lock.writeLock().unlock(); |
1322 |
+ |
t1.start(); |
1323 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1324 |
+ |
t2.start(); |
1325 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1326 |
+ |
lock.writeLock().lock(); |
1327 |
+ |
assertTrue(lock.hasWaiters(c)); |
1328 |
+ |
assertTrue(lock.getWaitingThreads(c).contains(t1)); |
1329 |
+ |
assertTrue(lock.getWaitingThreads(c).contains(t2)); |
1330 |
+ |
c.signalAll(); |
1331 |
+ |
lock.writeLock().unlock(); |
1332 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
1333 |
+ |
lock.writeLock().lock(); |
1334 |
+ |
assertFalse(lock.hasWaiters(c)); |
1335 |
+ |
assertTrue(lock.getWaitingThreads(c).isEmpty()); |
1336 |
+ |
lock.writeLock().unlock(); |
1337 |
+ |
t1.join(SHORT_DELAY_MS); |
1338 |
+ |
t2.join(SHORT_DELAY_MS); |
1339 |
+ |
assertFalse(t1.isAlive()); |
1340 |
+ |
assertFalse(t2.isAlive()); |
1341 |
+ |
} |
1342 |
+ |
|
1343 |
+ |
/** |
1344 |
+ |
* toString indicates current lock state |
1345 |
+ |
*/ |
1346 |
+ |
public void testToString() { |
1347 |
+ |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1348 |
+ |
String us = lock.toString(); |
1349 |
+ |
assertTrue(us.indexOf("Write locks = 0") >= 0); |
1350 |
+ |
assertTrue(us.indexOf("Read locks = 0") >= 0); |
1351 |
+ |
lock.writeLock().lock(); |
1352 |
+ |
String ws = lock.toString(); |
1353 |
+ |
assertTrue(ws.indexOf("Write locks = 1") >= 0); |
1354 |
+ |
assertTrue(ws.indexOf("Read locks = 0") >= 0); |
1355 |
+ |
lock.writeLock().unlock(); |
1356 |
+ |
lock.readLock().lock(); |
1357 |
+ |
lock.readLock().lock(); |
1358 |
+ |
String rs = lock.toString(); |
1359 |
+ |
assertTrue(rs.indexOf("Write locks = 0") >= 0); |
1360 |
+ |
assertTrue(rs.indexOf("Read locks = 2") >= 0); |
1361 |
+ |
} |
1362 |
+ |
|
1363 |
+ |
/** |
1364 |
+ |
* readLock.toString indicates current lock state |
1365 |
+ |
*/ |
1366 |
+ |
public void testReadLockToString() { |
1367 |
+ |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1368 |
+ |
String us = lock.readLock().toString(); |
1369 |
+ |
assertTrue(us.indexOf("Read locks = 0") >= 0); |
1370 |
+ |
lock.readLock().lock(); |
1371 |
+ |
lock.readLock().lock(); |
1372 |
+ |
String rs = lock.readLock().toString(); |
1373 |
+ |
assertTrue(rs.indexOf("Read locks = 2") >= 0); |
1374 |
+ |
} |
1375 |
+ |
|
1376 |
+ |
/** |
1377 |
+ |
* writeLock.toString indicates current lock state |
1378 |
+ |
*/ |
1379 |
+ |
public void testWriteLockToString() { |
1380 |
+ |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1381 |
+ |
String us = lock.writeLock().toString(); |
1382 |
+ |
assertTrue(us.indexOf("Unlocked") >= 0); |
1383 |
+ |
lock.writeLock().lock(); |
1384 |
+ |
String ls = lock.writeLock().toString(); |
1385 |
+ |
assertTrue(ls.indexOf("Locked") >= 0); |
1386 |
+ |
} |
1387 |
+ |
|
1388 |
|
} |