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import junit.framework.*; |
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import java.util.concurrent.locks.*; |
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import java.util.concurrent.*; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import java.io.*; |
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import java.util.*; |
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public class ReentrantReadWriteLockTest extends JSR166TestCase { |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run (suite()); |
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junit.textui.TestRunner.run (suite()); |
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} |
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public static Test suite() { |
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return new TestSuite(ReentrantReadWriteLockTest.class); |
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return new TestSuite(ReentrantReadWriteLockTest.class); |
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} |
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|
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/** |
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* Constructor sets given fairness, and is in unlocked state |
63 |
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*/ |
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public void testConstructor() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
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> |
ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
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assertFalse(rl.isFair()); |
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assertFalse(rl.isWriteLocked()); |
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assertEquals(0, rl.getReadLockCount()); |
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ReentrantReadWriteLock r2 = new ReentrantReadWriteLock(true); |
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> |
ReentrantReadWriteLock r2 = new ReentrantReadWriteLock(true); |
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assertTrue(r2.isFair()); |
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assertFalse(r2.isWriteLocked()); |
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assertEquals(0, r2.getReadLockCount()); |
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ReentrantReadWriteLock r3 = new ReentrantReadWriteLock(false); |
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ReentrantReadWriteLock r3 = new ReentrantReadWriteLock(false); |
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assertFalse(r3.isFair()); |
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assertFalse(r3.isWriteLocked()); |
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assertEquals(0, r3.getReadLockCount()); |
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* write-locking and read-locking an unlocked lock succeed |
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*/ |
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public void testLock() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
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rl.writeLock().lock(); |
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assertTrue(rl.isWriteLocked()); |
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assertTrue(rl.isWriteLockedByCurrentThread()); |
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* locking an unlocked fair lock succeeds |
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*/ |
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public void testFairLock() { |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(true); |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(true); |
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rl.writeLock().lock(); |
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assertTrue(rl.isWriteLocked()); |
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assertTrue(rl.isWriteLockedByCurrentThread()); |
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* getWriteHoldCount returns number of recursive holds |
132 |
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*/ |
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public void testGetWriteHoldCount() { |
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ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
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for (int i = 1; i <= SIZE; i++) { |
136 |
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lock.writeLock().lock(); |
137 |
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assertEquals(i,lock.getWriteHoldCount()); |
138 |
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} |
139 |
< |
for (int i = SIZE; i > 0; i--) { |
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lock.writeLock().unlock(); |
141 |
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assertEquals(i-1,lock.getWriteHoldCount()); |
142 |
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} |
134 |
> |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
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for (int i = 1; i <= SIZE; i++) { |
136 |
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lock.writeLock().lock(); |
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> |
assertEquals(i,lock.getWriteHoldCount()); |
138 |
> |
} |
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for (int i = SIZE; i > 0; i--) { |
140 |
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lock.writeLock().unlock(); |
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> |
assertEquals(i-1,lock.getWriteHoldCount()); |
142 |
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} |
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} |
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|
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/** |
146 |
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* WriteLock.getHoldCount returns number of recursive holds |
147 |
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*/ |
148 |
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public void testGetHoldCount() { |
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ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
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for (int i = 1; i <= SIZE; i++) { |
151 |
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lock.writeLock().lock(); |
152 |
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assertEquals(i,lock.writeLock().getHoldCount()); |
153 |
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} |
154 |
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for (int i = SIZE; i > 0; i--) { |
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lock.writeLock().unlock(); |
156 |
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assertEquals(i-1,lock.writeLock().getHoldCount()); |
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} |
149 |
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ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
150 |
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for (int i = 1; i <= SIZE; i++) { |
151 |
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lock.writeLock().lock(); |
152 |
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assertEquals(i,lock.writeLock().getHoldCount()); |
153 |
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} |
154 |
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for (int i = SIZE; i > 0; i--) { |
155 |
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lock.writeLock().unlock(); |
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assertEquals(i-1,lock.writeLock().getHoldCount()); |
157 |
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} |
158 |
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} |
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|
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/** |
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* getReadHoldCount returns number of recursive holds |
162 |
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*/ |
163 |
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public void testGetReadHoldCount() { |
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ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
165 |
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for (int i = 1; i <= SIZE; i++) { |
166 |
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lock.readLock().lock(); |
167 |
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assertEquals(i,lock.getReadHoldCount()); |
168 |
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} |
169 |
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for (int i = SIZE; i > 0; i--) { |
170 |
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lock.readLock().unlock(); |
171 |
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assertEquals(i-1,lock.getReadHoldCount()); |
172 |
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} |
164 |
> |
ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
165 |
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for (int i = 1; i <= SIZE; i++) { |
166 |
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lock.readLock().lock(); |
167 |
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assertEquals(i,lock.getReadHoldCount()); |
168 |
> |
} |
169 |
> |
for (int i = SIZE; i > 0; i--) { |
170 |
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lock.readLock().unlock(); |
171 |
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assertEquals(i-1,lock.getReadHoldCount()); |
172 |
> |
} |
173 |
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} |
174 |
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|
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|
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* write-unlocking an unlocked lock throws IllegalMonitorStateException |
178 |
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*/ |
179 |
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public void testUnlock_IllegalMonitorStateException() { |
180 |
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ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
181 |
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try { |
182 |
< |
rl.writeLock().unlock(); |
183 |
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shouldThrow(); |
184 |
< |
} catch (IllegalMonitorStateException success) {} |
180 |
> |
ReentrantReadWriteLock rl = new ReentrantReadWriteLock(); |
181 |
> |
try { |
182 |
> |
rl.writeLock().unlock(); |
183 |
> |
shouldThrow(); |
184 |
> |
} catch (IllegalMonitorStateException success) {} |
185 |
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} |
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|
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|
189 |
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* write-lockInterruptibly is interruptible |
190 |
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*/ |
191 |
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public void testWriteLockInterruptibly_Interrupted() throws Exception { |
192 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
193 |
< |
Thread t = new Thread(new Runnable() { |
194 |
< |
public void run() { |
195 |
< |
try { |
196 |
< |
lock.writeLock().lockInterruptibly(); |
197 |
< |
lock.writeLock().unlock(); |
198 |
< |
lock.writeLock().lockInterruptibly(); |
199 |
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lock.writeLock().unlock(); |
199 |
< |
} catch (InterruptedException success) {} |
200 |
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} |
201 |
< |
}); |
192 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
193 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
194 |
> |
public void realRun() throws InterruptedException { |
195 |
> |
lock.writeLock().lockInterruptibly(); |
196 |
> |
lock.writeLock().unlock(); |
197 |
> |
lock.writeLock().lockInterruptibly(); |
198 |
> |
lock.writeLock().unlock(); |
199 |
> |
}}); |
200 |
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|
201 |
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lock.writeLock().lock(); |
202 |
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t.start(); |
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* timed write-tryLock is interruptible |
212 |
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*/ |
213 |
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public void testWriteTryLock_Interrupted() throws InterruptedException { |
214 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
215 |
< |
lock.writeLock().lock(); |
216 |
< |
Thread t = new Thread(new Runnable() { |
217 |
< |
public void run() { |
218 |
< |
try { |
219 |
< |
lock.writeLock().tryLock(1000,TimeUnit.MILLISECONDS); |
222 |
< |
} catch (InterruptedException success) {} |
223 |
< |
} |
224 |
< |
}); |
214 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
215 |
> |
lock.writeLock().lock(); |
216 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
217 |
> |
public void realRun() throws InterruptedException { |
218 |
> |
lock.writeLock().tryLock(SMALL_DELAY_MS, MILLISECONDS); |
219 |
> |
}}); |
220 |
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|
221 |
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t.start(); |
222 |
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Thread.sleep(SHORT_DELAY_MS); |
223 |
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t.interrupt(); |
224 |
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lock.writeLock().unlock(); |
225 |
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t.join(); |
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* read-lockInterruptibly is interruptible |
230 |
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*/ |
231 |
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public void testReadLockInterruptibly_Interrupted() throws InterruptedException { |
232 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
233 |
< |
lock.writeLock().lock(); |
234 |
< |
Thread t = new Thread(new Runnable() { |
235 |
< |
public void run() { |
236 |
< |
try { |
237 |
< |
lock.readLock().lockInterruptibly(); |
242 |
< |
} catch (InterruptedException success) {} |
243 |
< |
} |
244 |
< |
}); |
232 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
233 |
> |
lock.writeLock().lock(); |
234 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
235 |
> |
public void realRun() throws InterruptedException { |
236 |
> |
lock.readLock().lockInterruptibly(); |
237 |
> |
}}); |
238 |
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|
239 |
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t.start(); |
240 |
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Thread.sleep(SHORT_DELAY_MS); |
248 |
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* timed read-tryLock is interruptible |
249 |
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*/ |
250 |
|
public void testReadTryLock_Interrupted() throws InterruptedException { |
251 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
252 |
< |
lock.writeLock().lock(); |
253 |
< |
Thread t = new Thread(new Runnable() { |
254 |
< |
public void run() { |
255 |
< |
try { |
256 |
< |
lock.readLock().tryLock(1000,TimeUnit.MILLISECONDS); |
264 |
< |
threadShouldThrow(); |
265 |
< |
} catch (InterruptedException success) {} |
266 |
< |
} |
267 |
< |
}); |
251 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
252 |
> |
lock.writeLock().lock(); |
253 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
254 |
> |
public void realRun() throws InterruptedException { |
255 |
> |
lock.readLock().tryLock(LONG_DELAY_MS, MILLISECONDS); |
256 |
> |
}}); |
257 |
|
|
258 |
|
t.start(); |
259 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
260 |
|
t.interrupt(); |
261 |
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t.join(); |
262 |
|
} |
266 |
|
* write-tryLock fails if locked |
267 |
|
*/ |
268 |
|
public void testWriteTryLockWhenLocked() throws InterruptedException { |
269 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
270 |
< |
lock.writeLock().lock(); |
271 |
< |
Thread t = new Thread(new Runnable() { |
272 |
< |
public void run() { |
273 |
< |
threadAssertFalse(lock.writeLock().tryLock()); |
274 |
< |
} |
285 |
< |
}); |
269 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
270 |
> |
lock.writeLock().lock(); |
271 |
> |
Thread t = new Thread(new CheckedRunnable() { |
272 |
> |
public void realRun() { |
273 |
> |
threadAssertFalse(lock.writeLock().tryLock()); |
274 |
> |
}}); |
275 |
|
|
276 |
|
t.start(); |
277 |
|
t.join(); |
282 |
|
* read-tryLock fails if locked |
283 |
|
*/ |
284 |
|
public void testReadTryLockWhenLocked() throws InterruptedException { |
285 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
286 |
< |
lock.writeLock().lock(); |
287 |
< |
Thread t = new Thread(new Runnable() { |
288 |
< |
public void run() { |
289 |
< |
threadAssertFalse(lock.readLock().tryLock()); |
290 |
< |
} |
302 |
< |
}); |
285 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
286 |
> |
lock.writeLock().lock(); |
287 |
> |
Thread t = new Thread(new CheckedRunnable() { |
288 |
> |
public void realRun() { |
289 |
> |
threadAssertFalse(lock.readLock().tryLock()); |
290 |
> |
}}); |
291 |
|
|
292 |
|
t.start(); |
293 |
|
t.join(); |
298 |
|
* Multiple threads can hold a read lock when not write-locked |
299 |
|
*/ |
300 |
|
public void testMultipleReadLocks() throws InterruptedException { |
301 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
302 |
< |
lock.readLock().lock(); |
303 |
< |
Thread t = new Thread(new Runnable() { |
304 |
< |
public void run() { |
305 |
< |
threadAssertTrue(lock.readLock().tryLock()); |
306 |
< |
lock.readLock().unlock(); |
307 |
< |
} |
320 |
< |
}); |
301 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
302 |
> |
lock.readLock().lock(); |
303 |
> |
Thread t = new Thread(new CheckedRunnable() { |
304 |
> |
public void realRun() { |
305 |
> |
threadAssertTrue(lock.readLock().tryLock()); |
306 |
> |
lock.readLock().unlock(); |
307 |
> |
}}); |
308 |
|
|
309 |
|
t.start(); |
310 |
|
t.join(); |
315 |
|
* A writelock succeeds after reading threads unlock |
316 |
|
*/ |
317 |
|
public void testWriteAfterMultipleReadLocks() throws InterruptedException { |
318 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
319 |
< |
lock.readLock().lock(); |
320 |
< |
Thread t1 = new Thread(new Runnable() { |
321 |
< |
public void run() { |
322 |
< |
lock.readLock().lock(); |
323 |
< |
lock.readLock().unlock(); |
324 |
< |
} |
325 |
< |
}); |
326 |
< |
Thread t2 = new Thread(new Runnable() { |
327 |
< |
public void run() { |
328 |
< |
lock.writeLock().lock(); |
329 |
< |
lock.writeLock().unlock(); |
343 |
< |
} |
344 |
< |
}); |
318 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
319 |
> |
lock.readLock().lock(); |
320 |
> |
Thread t1 = new Thread(new CheckedRunnable() { |
321 |
> |
public void realRun() { |
322 |
> |
lock.readLock().lock(); |
323 |
> |
lock.readLock().unlock(); |
324 |
> |
}}); |
325 |
> |
Thread t2 = new Thread(new CheckedRunnable() { |
326 |
> |
public void realRun() { |
327 |
> |
lock.writeLock().lock(); |
328 |
> |
lock.writeLock().unlock(); |
329 |
> |
}}); |
330 |
|
|
331 |
|
t1.start(); |
332 |
|
t2.start(); |
342 |
|
* Readlocks succeed after a writing thread unlocks |
343 |
|
*/ |
344 |
|
public void testReadAfterWriteLock() throws InterruptedException { |
345 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
346 |
< |
lock.writeLock().lock(); |
347 |
< |
Thread t1 = new Thread(new Runnable() { |
348 |
< |
public void run() { |
349 |
< |
lock.readLock().lock(); |
350 |
< |
lock.readLock().unlock(); |
351 |
< |
} |
352 |
< |
}); |
353 |
< |
Thread t2 = new Thread(new Runnable() { |
354 |
< |
public void run() { |
355 |
< |
lock.readLock().lock(); |
356 |
< |
lock.readLock().unlock(); |
372 |
< |
} |
373 |
< |
}); |
345 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
346 |
> |
lock.writeLock().lock(); |
347 |
> |
Thread t1 = new Thread(new CheckedRunnable() { |
348 |
> |
public void realRun() { |
349 |
> |
lock.readLock().lock(); |
350 |
> |
lock.readLock().unlock(); |
351 |
> |
}}); |
352 |
> |
Thread t2 = new Thread(new CheckedRunnable() { |
353 |
> |
public void realRun() { |
354 |
> |
lock.readLock().lock(); |
355 |
> |
lock.readLock().unlock(); |
356 |
> |
}}); |
357 |
|
|
358 |
|
t1.start(); |
359 |
|
t2.start(); |
369 |
|
* Read trylock succeeds if write locked by current thread |
370 |
|
*/ |
371 |
|
public void testReadHoldingWriteLock() { |
372 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
373 |
< |
lock.writeLock().lock(); |
372 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
373 |
> |
lock.writeLock().lock(); |
374 |
|
assertTrue(lock.readLock().tryLock()); |
375 |
|
lock.readLock().unlock(); |
376 |
|
lock.writeLock().unlock(); |
381 |
|
* other threads are waiting for readlock |
382 |
|
*/ |
383 |
|
public void testReadHoldingWriteLock2() throws InterruptedException { |
384 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
385 |
< |
lock.writeLock().lock(); |
386 |
< |
Thread t1 = new Thread(new Runnable() { |
387 |
< |
public void run() { |
388 |
< |
lock.readLock().lock(); |
389 |
< |
lock.readLock().unlock(); |
390 |
< |
} |
391 |
< |
}); |
392 |
< |
Thread t2 = new Thread(new Runnable() { |
393 |
< |
public void run() { |
394 |
< |
lock.readLock().lock(); |
395 |
< |
lock.readLock().unlock(); |
413 |
< |
} |
414 |
< |
}); |
384 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
385 |
> |
lock.writeLock().lock(); |
386 |
> |
Thread t1 = new Thread(new CheckedRunnable() { |
387 |
> |
public void realRun() { |
388 |
> |
lock.readLock().lock(); |
389 |
> |
lock.readLock().unlock(); |
390 |
> |
}}); |
391 |
> |
Thread t2 = new Thread(new CheckedRunnable() { |
392 |
> |
public void realRun() { |
393 |
> |
lock.readLock().lock(); |
394 |
> |
lock.readLock().unlock(); |
395 |
> |
}}); |
396 |
|
|
397 |
|
t1.start(); |
398 |
|
t2.start(); |
413 |
|
* other threads are waiting for writelock |
414 |
|
*/ |
415 |
|
public void testReadHoldingWriteLock3() throws InterruptedException { |
416 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
417 |
< |
lock.writeLock().lock(); |
418 |
< |
Thread t1 = new Thread(new Runnable() { |
419 |
< |
public void run() { |
420 |
< |
lock.writeLock().lock(); |
421 |
< |
lock.writeLock().unlock(); |
422 |
< |
} |
423 |
< |
}); |
424 |
< |
Thread t2 = new Thread(new Runnable() { |
425 |
< |
public void run() { |
426 |
< |
lock.writeLock().lock(); |
427 |
< |
lock.writeLock().unlock(); |
447 |
< |
} |
448 |
< |
}); |
416 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
417 |
> |
lock.writeLock().lock(); |
418 |
> |
Thread t1 = new Thread(new CheckedRunnable() { |
419 |
> |
public void realRun() { |
420 |
> |
lock.writeLock().lock(); |
421 |
> |
lock.writeLock().unlock(); |
422 |
> |
}}); |
423 |
> |
Thread t2 = new Thread(new CheckedRunnable() { |
424 |
> |
public void realRun() { |
425 |
> |
lock.writeLock().lock(); |
426 |
> |
lock.writeLock().unlock(); |
427 |
> |
}}); |
428 |
|
|
429 |
|
t1.start(); |
430 |
|
t2.start(); |
446 |
|
* other threads are waiting for writelock |
447 |
|
*/ |
448 |
|
public void testWriteHoldingWriteLock4() throws InterruptedException { |
449 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
450 |
< |
lock.writeLock().lock(); |
451 |
< |
Thread t1 = new Thread(new Runnable() { |
452 |
< |
public void run() { |
453 |
< |
lock.writeLock().lock(); |
454 |
< |
lock.writeLock().unlock(); |
455 |
< |
} |
456 |
< |
}); |
457 |
< |
Thread t2 = new Thread(new Runnable() { |
458 |
< |
public void run() { |
459 |
< |
lock.writeLock().lock(); |
460 |
< |
lock.writeLock().unlock(); |
482 |
< |
} |
483 |
< |
}); |
449 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
450 |
> |
lock.writeLock().lock(); |
451 |
> |
Thread t1 = new Thread(new CheckedRunnable() { |
452 |
> |
public void realRun() { |
453 |
> |
lock.writeLock().lock(); |
454 |
> |
lock.writeLock().unlock(); |
455 |
> |
}}); |
456 |
> |
Thread t2 = new Thread(new CheckedRunnable() { |
457 |
> |
public void realRun() { |
458 |
> |
lock.writeLock().lock(); |
459 |
> |
lock.writeLock().unlock(); |
460 |
> |
}}); |
461 |
|
|
462 |
|
t1.start(); |
463 |
|
t2.start(); |
478 |
|
* Fair Read trylock succeeds if write locked by current thread |
479 |
|
*/ |
480 |
|
public void testReadHoldingWriteLockFair() { |
481 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
482 |
< |
lock.writeLock().lock(); |
481 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
482 |
> |
lock.writeLock().lock(); |
483 |
|
assertTrue(lock.readLock().tryLock()); |
484 |
|
lock.readLock().unlock(); |
485 |
|
lock.writeLock().unlock(); |
490 |
|
* other threads are waiting for readlock |
491 |
|
*/ |
492 |
|
public void testReadHoldingWriteLockFair2() throws InterruptedException { |
493 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
494 |
< |
lock.writeLock().lock(); |
495 |
< |
Thread t1 = new Thread(new Runnable() { |
496 |
< |
public void run() { |
497 |
< |
lock.readLock().lock(); |
498 |
< |
lock.readLock().unlock(); |
499 |
< |
} |
500 |
< |
}); |
501 |
< |
Thread t2 = new Thread(new Runnable() { |
502 |
< |
public void run() { |
503 |
< |
lock.readLock().lock(); |
504 |
< |
lock.readLock().unlock(); |
528 |
< |
} |
529 |
< |
}); |
493 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
494 |
> |
lock.writeLock().lock(); |
495 |
> |
Thread t1 = new Thread(new CheckedRunnable() { |
496 |
> |
public void realRun() { |
497 |
> |
lock.readLock().lock(); |
498 |
> |
lock.readLock().unlock(); |
499 |
> |
}}); |
500 |
> |
Thread t2 = new Thread(new CheckedRunnable() { |
501 |
> |
public void realRun() { |
502 |
> |
lock.readLock().lock(); |
503 |
> |
lock.readLock().unlock(); |
504 |
> |
}}); |
505 |
|
|
506 |
|
t1.start(); |
507 |
|
t2.start(); |
523 |
|
* other threads are waiting for writelock |
524 |
|
*/ |
525 |
|
public void testReadHoldingWriteLockFair3() throws InterruptedException { |
526 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
527 |
< |
lock.writeLock().lock(); |
528 |
< |
Thread t1 = new Thread(new Runnable() { |
529 |
< |
public void run() { |
530 |
< |
lock.writeLock().lock(); |
531 |
< |
lock.writeLock().unlock(); |
532 |
< |
} |
533 |
< |
}); |
534 |
< |
Thread t2 = new Thread(new Runnable() { |
535 |
< |
public void run() { |
536 |
< |
lock.writeLock().lock(); |
537 |
< |
lock.writeLock().unlock(); |
563 |
< |
} |
564 |
< |
}); |
526 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
527 |
> |
lock.writeLock().lock(); |
528 |
> |
Thread t1 = new Thread(new CheckedRunnable() { |
529 |
> |
public void realRun() { |
530 |
> |
lock.writeLock().lock(); |
531 |
> |
lock.writeLock().unlock(); |
532 |
> |
}}); |
533 |
> |
Thread t2 = new Thread(new CheckedRunnable() { |
534 |
> |
public void realRun() { |
535 |
> |
lock.writeLock().lock(); |
536 |
> |
lock.writeLock().unlock(); |
537 |
> |
}}); |
538 |
|
|
539 |
|
t1.start(); |
540 |
|
t2.start(); |
556 |
|
* other threads are waiting for writelock |
557 |
|
*/ |
558 |
|
public void testWriteHoldingWriteLockFair4() throws InterruptedException { |
559 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
560 |
< |
lock.writeLock().lock(); |
561 |
< |
Thread t1 = new Thread(new Runnable() { |
562 |
< |
public void run() { |
563 |
< |
lock.writeLock().lock(); |
564 |
< |
lock.writeLock().unlock(); |
565 |
< |
} |
566 |
< |
}); |
567 |
< |
Thread t2 = new Thread(new Runnable() { |
568 |
< |
public void run() { |
569 |
< |
lock.writeLock().lock(); |
570 |
< |
lock.writeLock().unlock(); |
598 |
< |
} |
599 |
< |
}); |
559 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
560 |
> |
lock.writeLock().lock(); |
561 |
> |
Thread t1 = new Thread(new CheckedRunnable() { |
562 |
> |
public void realRun() { |
563 |
> |
lock.writeLock().lock(); |
564 |
> |
lock.writeLock().unlock(); |
565 |
> |
}}); |
566 |
> |
Thread t2 = new Thread(new CheckedRunnable() { |
567 |
> |
public void realRun() { |
568 |
> |
lock.writeLock().lock(); |
569 |
> |
lock.writeLock().unlock(); |
570 |
> |
}}); |
571 |
|
|
572 |
|
t1.start(); |
573 |
|
t2.start(); |
591 |
|
* Read tryLock succeeds if readlocked but not writelocked |
592 |
|
*/ |
593 |
|
public void testTryLockWhenReadLocked() throws InterruptedException { |
594 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
595 |
< |
lock.readLock().lock(); |
596 |
< |
Thread t = new Thread(new Runnable() { |
597 |
< |
public void run() { |
598 |
< |
threadAssertTrue(lock.readLock().tryLock()); |
599 |
< |
lock.readLock().unlock(); |
600 |
< |
} |
630 |
< |
}); |
594 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
595 |
> |
lock.readLock().lock(); |
596 |
> |
Thread t = new Thread(new CheckedRunnable() { |
597 |
> |
public void realRun() { |
598 |
> |
threadAssertTrue(lock.readLock().tryLock()); |
599 |
> |
lock.readLock().unlock(); |
600 |
> |
}}); |
601 |
|
|
602 |
|
t.start(); |
603 |
|
t.join(); |
610 |
|
* write tryLock fails when readlocked |
611 |
|
*/ |
612 |
|
public void testWriteTryLockWhenReadLocked() throws InterruptedException { |
613 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
614 |
< |
lock.readLock().lock(); |
615 |
< |
Thread t = new Thread(new Runnable() { |
616 |
< |
public void run() { |
617 |
< |
threadAssertFalse(lock.writeLock().tryLock()); |
618 |
< |
} |
649 |
< |
}); |
613 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
614 |
> |
lock.readLock().lock(); |
615 |
> |
Thread t = new Thread(new CheckedRunnable() { |
616 |
> |
public void realRun() { |
617 |
> |
threadAssertFalse(lock.writeLock().tryLock()); |
618 |
> |
}}); |
619 |
|
|
620 |
|
t.start(); |
621 |
|
t.join(); |
627 |
|
* Fair Read tryLock succeeds if readlocked but not writelocked |
628 |
|
*/ |
629 |
|
public void testTryLockWhenReadLockedFair() throws InterruptedException { |
630 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
631 |
< |
lock.readLock().lock(); |
632 |
< |
Thread t = new Thread(new Runnable() { |
633 |
< |
public void run() { |
634 |
< |
threadAssertTrue(lock.readLock().tryLock()); |
635 |
< |
lock.readLock().unlock(); |
636 |
< |
} |
668 |
< |
}); |
630 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
631 |
> |
lock.readLock().lock(); |
632 |
> |
Thread t = new Thread(new CheckedRunnable() { |
633 |
> |
public void realRun() { |
634 |
> |
threadAssertTrue(lock.readLock().tryLock()); |
635 |
> |
lock.readLock().unlock(); |
636 |
> |
}}); |
637 |
|
|
638 |
|
t.start(); |
639 |
|
t.join(); |
646 |
|
* Fair write tryLock fails when readlocked |
647 |
|
*/ |
648 |
|
public void testWriteTryLockWhenReadLockedFair() throws InterruptedException { |
649 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
650 |
< |
lock.readLock().lock(); |
651 |
< |
Thread t = new Thread(new Runnable() { |
652 |
< |
public void run() { |
653 |
< |
threadAssertFalse(lock.writeLock().tryLock()); |
654 |
< |
} |
687 |
< |
}); |
649 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(true); |
650 |
> |
lock.readLock().lock(); |
651 |
> |
Thread t = new Thread(new CheckedRunnable() { |
652 |
> |
public void realRun() { |
653 |
> |
threadAssertFalse(lock.writeLock().tryLock()); |
654 |
> |
}}); |
655 |
|
|
656 |
|
t.start(); |
657 |
|
t.join(); |
664 |
|
* write timed tryLock times out if locked |
665 |
|
*/ |
666 |
|
public void testWriteTryLock_Timeout() throws InterruptedException { |
667 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
668 |
< |
lock.writeLock().lock(); |
669 |
< |
Thread t = new Thread(new Runnable() { |
670 |
< |
public void run() { |
671 |
< |
try { |
672 |
< |
threadAssertFalse(lock.writeLock().tryLock(1, TimeUnit.MILLISECONDS)); |
706 |
< |
} catch (Exception ex) { |
707 |
< |
threadUnexpectedException(); |
708 |
< |
} |
709 |
< |
} |
710 |
< |
}); |
667 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
668 |
> |
lock.writeLock().lock(); |
669 |
> |
Thread t = new Thread(new CheckedRunnable() { |
670 |
> |
public void realRun() throws InterruptedException { |
671 |
> |
threadAssertFalse(lock.writeLock().tryLock(1, MILLISECONDS)); |
672 |
> |
}}); |
673 |
|
|
674 |
|
t.start(); |
675 |
|
t.join(); |
676 |
+ |
assertTrue(lock.writeLock().isHeldByCurrentThread()); |
677 |
|
lock.writeLock().unlock(); |
678 |
|
} |
679 |
|
|
681 |
|
* read timed tryLock times out if write-locked |
682 |
|
*/ |
683 |
|
public void testReadTryLock_Timeout() throws InterruptedException { |
684 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
685 |
< |
lock.writeLock().lock(); |
686 |
< |
Thread t = new Thread(new Runnable() { |
687 |
< |
public void run() { |
688 |
< |
try { |
689 |
< |
threadAssertFalse(lock.readLock().tryLock(1, TimeUnit.MILLISECONDS)); |
727 |
< |
} catch (Exception ex) { |
728 |
< |
threadUnexpectedException(); |
729 |
< |
} |
730 |
< |
} |
731 |
< |
}); |
684 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
685 |
> |
lock.writeLock().lock(); |
686 |
> |
Thread t = new Thread(new CheckedRunnable() { |
687 |
> |
public void realRun() throws InterruptedException { |
688 |
> |
threadAssertFalse(lock.readLock().tryLock(1, MILLISECONDS)); |
689 |
> |
}}); |
690 |
|
|
691 |
|
t.start(); |
692 |
|
t.join(); |
693 |
+ |
assertTrue(lock.writeLock().isHeldByCurrentThread()); |
694 |
|
lock.writeLock().unlock(); |
695 |
|
} |
696 |
|
|
699 |
|
* write lockInterruptibly succeeds if lock free else is interruptible |
700 |
|
*/ |
701 |
|
public void testWriteLockInterruptibly() throws InterruptedException { |
702 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
702 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
703 |
|
lock.writeLock().lockInterruptibly(); |
704 |
< |
Thread t = new Thread(new Runnable() { |
705 |
< |
public void run() { |
706 |
< |
try { |
707 |
< |
lock.writeLock().lockInterruptibly(); |
749 |
< |
threadShouldThrow(); |
750 |
< |
} |
751 |
< |
catch (InterruptedException success) { |
752 |
< |
} |
753 |
< |
} |
754 |
< |
}); |
704 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
705 |
> |
public void realRun() throws InterruptedException { |
706 |
> |
lock.writeLock().lockInterruptibly(); |
707 |
> |
}}); |
708 |
|
|
709 |
|
t.start(); |
710 |
|
Thread.sleep(SHORT_DELAY_MS); |
718 |
|
* read lockInterruptibly succeeds if lock free else is interruptible |
719 |
|
*/ |
720 |
|
public void testReadLockInterruptibly() throws InterruptedException { |
721 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
721 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
722 |
|
lock.writeLock().lockInterruptibly(); |
723 |
< |
Thread t = new Thread(new Runnable() { |
724 |
< |
public void run() { |
725 |
< |
try { |
726 |
< |
lock.readLock().lockInterruptibly(); |
774 |
< |
threadShouldThrow(); |
775 |
< |
} |
776 |
< |
catch (InterruptedException success) { |
777 |
< |
} |
778 |
< |
} |
779 |
< |
}); |
723 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
724 |
> |
public void realRun() throws InterruptedException { |
725 |
> |
lock.readLock().lockInterruptibly(); |
726 |
> |
}}); |
727 |
|
|
728 |
|
t.start(); |
729 |
|
Thread.sleep(SHORT_DELAY_MS); |
736 |
|
* Calling await without holding lock throws IllegalMonitorStateException |
737 |
|
*/ |
738 |
|
public void testAwait_IllegalMonitor() throws InterruptedException { |
739 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
739 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
740 |
|
final Condition c = lock.writeLock().newCondition(); |
741 |
|
try { |
742 |
|
c.await(); |
748 |
|
* Calling signal without holding lock throws IllegalMonitorStateException |
749 |
|
*/ |
750 |
|
public void testSignal_IllegalMonitor() { |
751 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
751 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
752 |
|
final Condition c = lock.writeLock().newCondition(); |
753 |
|
try { |
754 |
|
c.signal(); |
760 |
|
* awaitNanos without a signal times out |
761 |
|
*/ |
762 |
|
public void testAwaitNanos_Timeout() throws InterruptedException { |
763 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
763 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
764 |
|
final Condition c = lock.writeLock().newCondition(); |
765 |
|
|
766 |
|
lock.writeLock().lock(); |
773 |
|
/** |
774 |
|
* timed await without a signal times out |
775 |
|
*/ |
776 |
< |
public void testAwait_Timeout() { |
777 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
776 |
> |
public void testAwait_Timeout() throws InterruptedException { |
777 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
778 |
|
final Condition c = lock.writeLock().newCondition(); |
779 |
|
lock.writeLock().lock(); |
780 |
+ |
assertFalse(c.await(SHORT_DELAY_MS, MILLISECONDS)); |
781 |
|
lock.writeLock().unlock(); |
782 |
|
} |
783 |
|
|
784 |
|
/** |
785 |
|
* awaitUntil without a signal times out |
786 |
|
*/ |
787 |
< |
public void testAwaitUntil_Timeout() { |
788 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
787 |
> |
public void testAwaitUntil_Timeout() throws InterruptedException { |
788 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
789 |
|
final Condition c = lock.writeLock().newCondition(); |
790 |
|
lock.writeLock().lock(); |
791 |
|
java.util.Date d = new java.util.Date(); |
792 |
+ |
assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10))); |
793 |
|
lock.writeLock().unlock(); |
794 |
|
} |
795 |
|
|
797 |
|
* await returns when signalled |
798 |
|
*/ |
799 |
|
public void testAwait() throws InterruptedException { |
800 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
800 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
801 |
|
final Condition c = lock.writeLock().newCondition(); |
802 |
< |
Thread t = new Thread(new Runnable() { |
803 |
< |
public void run() { |
804 |
< |
try { |
805 |
< |
lock.writeLock().lock(); |
806 |
< |
c.await(); |
807 |
< |
lock.writeLock().unlock(); |
859 |
< |
} |
860 |
< |
catch (InterruptedException e) { |
861 |
< |
threadUnexpectedException(); |
862 |
< |
} |
863 |
< |
} |
864 |
< |
}); |
802 |
> |
Thread t = new Thread(new CheckedRunnable() { |
803 |
> |
public void realRun() throws InterruptedException { |
804 |
> |
lock.writeLock().lock(); |
805 |
> |
c.await(); |
806 |
> |
lock.writeLock().unlock(); |
807 |
> |
}}); |
808 |
|
|
809 |
|
t.start(); |
810 |
|
Thread.sleep(SHORT_DELAY_MS); |
874 |
|
* await is interruptible |
875 |
|
*/ |
876 |
|
public void testAwait_Interrupt() throws InterruptedException { |
877 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
877 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
878 |
|
final Condition c = lock.writeLock().newCondition(); |
879 |
< |
Thread t = new Thread(new Runnable() { |
880 |
< |
public void run() { |
881 |
< |
try { |
882 |
< |
lock.writeLock().lock(); |
883 |
< |
c.await(); |
884 |
< |
lock.writeLock().unlock(); |
942 |
< |
threadShouldThrow(); |
943 |
< |
} |
944 |
< |
catch (InterruptedException success) { |
945 |
< |
} |
946 |
< |
} |
947 |
< |
}); |
879 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
880 |
> |
public void realRun() throws InterruptedException { |
881 |
> |
lock.writeLock().lock(); |
882 |
> |
c.await(); |
883 |
> |
lock.writeLock().unlock(); |
884 |
> |
}}); |
885 |
|
|
886 |
|
t.start(); |
887 |
|
Thread.sleep(SHORT_DELAY_MS); |
894 |
|
* awaitNanos is interruptible |
895 |
|
*/ |
896 |
|
public void testAwaitNanos_Interrupt() throws InterruptedException { |
897 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
897 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
898 |
|
final Condition c = lock.writeLock().newCondition(); |
899 |
< |
Thread t = new Thread(new Runnable() { |
900 |
< |
public void run() { |
901 |
< |
try { |
902 |
< |
lock.writeLock().lock(); |
903 |
< |
c.awaitNanos(SHORT_DELAY_MS * 2 * 1000000); |
904 |
< |
lock.writeLock().unlock(); |
968 |
< |
threadShouldThrow(); |
969 |
< |
} |
970 |
< |
catch (InterruptedException success) { |
971 |
< |
} |
972 |
< |
} |
973 |
< |
}); |
899 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
900 |
> |
public void realRun() throws InterruptedException { |
901 |
> |
lock.writeLock().lock(); |
902 |
> |
c.awaitNanos(LONG_DELAY_MS * 1000L * 1000L); |
903 |
> |
lock.writeLock().unlock(); |
904 |
> |
}}); |
905 |
|
|
906 |
|
t.start(); |
907 |
|
Thread.sleep(SHORT_DELAY_MS); |
914 |
|
* awaitUntil is interruptible |
915 |
|
*/ |
916 |
|
public void testAwaitUntil_Interrupt() throws InterruptedException { |
917 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
917 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
918 |
|
final Condition c = lock.writeLock().newCondition(); |
919 |
< |
Thread t = new Thread(new Runnable() { |
920 |
< |
public void run() { |
921 |
< |
try { |
922 |
< |
lock.writeLock().lock(); |
923 |
< |
java.util.Date d = new java.util.Date(); |
924 |
< |
c.awaitUntil(new java.util.Date(d.getTime() + 10000)); |
925 |
< |
lock.writeLock().unlock(); |
995 |
< |
threadShouldThrow(); |
996 |
< |
} |
997 |
< |
catch (InterruptedException success) { |
998 |
< |
} |
999 |
< |
} |
1000 |
< |
}); |
919 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
920 |
> |
public void realRun() throws InterruptedException { |
921 |
> |
lock.writeLock().lock(); |
922 |
> |
java.util.Date d = new java.util.Date(); |
923 |
> |
c.awaitUntil(new java.util.Date(d.getTime() + 10000)); |
924 |
> |
lock.writeLock().unlock(); |
925 |
> |
}}); |
926 |
|
|
927 |
|
t.start(); |
928 |
|
Thread.sleep(SHORT_DELAY_MS); |
935 |
|
* signalAll wakes up all threads |
936 |
|
*/ |
937 |
|
public void testSignalAll() throws InterruptedException { |
938 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
938 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
939 |
|
final Condition c = lock.writeLock().newCondition(); |
940 |
< |
Thread t1 = new Thread(new Runnable() { |
941 |
< |
public void run() { |
942 |
< |
try { |
943 |
< |
lock.writeLock().lock(); |
944 |
< |
c.await(); |
945 |
< |
lock.writeLock().unlock(); |
946 |
< |
} |
947 |
< |
catch (InterruptedException e) { |
948 |
< |
threadUnexpectedException(); |
949 |
< |
} |
950 |
< |
} |
951 |
< |
}); |
952 |
< |
|
1028 |
< |
Thread t2 = new Thread(new Runnable() { |
1029 |
< |
public void run() { |
1030 |
< |
try { |
1031 |
< |
lock.writeLock().lock(); |
1032 |
< |
c.await(); |
1033 |
< |
lock.writeLock().unlock(); |
1034 |
< |
} |
1035 |
< |
catch (InterruptedException e) { |
1036 |
< |
threadUnexpectedException(); |
1037 |
< |
} |
1038 |
< |
} |
1039 |
< |
}); |
940 |
> |
Thread t1 = new Thread(new CheckedRunnable() { |
941 |
> |
public void realRun() throws InterruptedException { |
942 |
> |
lock.writeLock().lock(); |
943 |
> |
c.await(); |
944 |
> |
lock.writeLock().unlock(); |
945 |
> |
}}); |
946 |
> |
|
947 |
> |
Thread t2 = new Thread(new CheckedRunnable() { |
948 |
> |
public void realRun() throws InterruptedException { |
949 |
> |
lock.writeLock().lock(); |
950 |
> |
c.await(); |
951 |
> |
lock.writeLock().unlock(); |
952 |
> |
}}); |
953 |
|
|
954 |
|
t1.start(); |
955 |
|
t2.start(); |
987 |
|
* hasQueuedThreads reports whether there are waiting threads |
988 |
|
*/ |
989 |
|
public void testhasQueuedThreads() throws InterruptedException { |
990 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
990 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
991 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
992 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
993 |
|
assertFalse(lock.hasQueuedThreads()); |
1012 |
|
* hasQueuedThread(null) throws NPE |
1013 |
|
*/ |
1014 |
|
public void testHasQueuedThreadNPE() { |
1015 |
< |
final ReentrantReadWriteLock sync = new ReentrantReadWriteLock(); |
1015 |
> |
final ReentrantReadWriteLock sync = new ReentrantReadWriteLock(); |
1016 |
|
try { |
1017 |
|
sync.hasQueuedThread(null); |
1018 |
|
shouldThrow(); |
1019 |
< |
} catch (NullPointerException success) { |
1107 |
< |
} |
1019 |
> |
} catch (NullPointerException success) {} |
1020 |
|
} |
1021 |
|
|
1022 |
|
/** |
1023 |
|
* hasQueuedThread reports whether a thread is queued. |
1024 |
|
*/ |
1025 |
|
public void testHasQueuedThread() throws InterruptedException { |
1026 |
< |
final ReentrantReadWriteLock sync = new ReentrantReadWriteLock(); |
1026 |
> |
final ReentrantReadWriteLock sync = new ReentrantReadWriteLock(); |
1027 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(sync)); |
1028 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(sync)); |
1029 |
|
assertFalse(sync.hasQueuedThread(t1)); |
1054 |
|
* getQueueLength reports number of waiting threads |
1055 |
|
*/ |
1056 |
|
public void testGetQueueLength() throws InterruptedException { |
1057 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1057 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1058 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
1059 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
1060 |
|
assertEquals(0, lock.getQueueLength()); |
1079 |
|
* getQueuedThreads includes waiting threads |
1080 |
|
*/ |
1081 |
|
public void testGetQueuedThreads() throws InterruptedException { |
1082 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1082 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1083 |
|
Thread t1 = new Thread(new InterruptedLockRunnable(lock)); |
1084 |
|
Thread t2 = new Thread(new InterruptibleLockRunnable(lock)); |
1085 |
|
assertTrue(lock.getQueuedThreads().isEmpty()); |
1107 |
|
* hasWaiters throws NPE if null |
1108 |
|
*/ |
1109 |
|
public void testHasWaitersNPE() { |
1110 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1110 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1111 |
|
try { |
1112 |
|
lock.hasWaiters(null); |
1113 |
|
shouldThrow(); |
1118 |
|
* getWaitQueueLength throws NPE if null |
1119 |
|
*/ |
1120 |
|
public void testGetWaitQueueLengthNPE() { |
1121 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1121 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1122 |
|
try { |
1123 |
|
lock.getWaitQueueLength(null); |
1124 |
|
shouldThrow(); |
1130 |
|
* getWaitingThreads throws NPE if null |
1131 |
|
*/ |
1132 |
|
public void testGetWaitingThreadsNPE() { |
1133 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1133 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1134 |
|
try { |
1135 |
|
lock.getWaitingThreads(null); |
1136 |
|
shouldThrow(); |
1141 |
|
* hasWaiters throws IAE if not owned |
1142 |
|
*/ |
1143 |
|
public void testHasWaitersIAE() { |
1144 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1144 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1145 |
|
final Condition c = lock.writeLock().newCondition(); |
1146 |
< |
final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(); |
1146 |
> |
final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(); |
1147 |
|
try { |
1148 |
|
lock2.hasWaiters(c); |
1149 |
|
shouldThrow(); |
1154 |
|
* hasWaiters throws IMSE if not locked |
1155 |
|
*/ |
1156 |
|
public void testHasWaitersIMSE() { |
1157 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1157 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1158 |
|
final Condition c = lock.writeLock().newCondition(); |
1159 |
|
try { |
1160 |
|
lock.hasWaiters(c); |
1167 |
|
* getWaitQueueLength throws IAE if not owned |
1168 |
|
*/ |
1169 |
|
public void testGetWaitQueueLengthIAE() { |
1170 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1170 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1171 |
|
final Condition c = lock.writeLock().newCondition(); |
1172 |
< |
final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(); |
1172 |
> |
final ReentrantReadWriteLock lock2 = new ReentrantReadWriteLock(); |
1173 |
|
try { |
1174 |
|
lock2.getWaitQueueLength(c); |
1175 |
|
shouldThrow(); |
1180 |
|
* getWaitQueueLength throws IMSE if not locked |
1181 |
|
*/ |
1182 |
|
public void testGetWaitQueueLengthIMSE() { |
1183 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1183 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1184 |
|
final Condition c = lock.writeLock().newCondition(); |
1185 |
|
try { |
1186 |
|
lock.getWaitQueueLength(c); |
1193 |
|
* getWaitingThreads throws IAE if not owned |
1194 |
|
*/ |
1195 |
|
public void testGetWaitingThreadsIAE() { |
1196 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1196 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1197 |
|
final Condition c = lock.writeLock().newCondition(); |
1198 |
< |
final PublicReentrantReadWriteLock lock2 = new PublicReentrantReadWriteLock(); |
1198 |
> |
final PublicReentrantReadWriteLock lock2 = new PublicReentrantReadWriteLock(); |
1199 |
|
try { |
1200 |
|
lock2.getWaitingThreads(c); |
1201 |
|
shouldThrow(); |
1206 |
|
* getWaitingThreads throws IMSE if not locked |
1207 |
|
*/ |
1208 |
|
public void testGetWaitingThreadsIMSE() { |
1209 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1209 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1210 |
|
final Condition c = lock.writeLock().newCondition(); |
1211 |
|
try { |
1212 |
|
lock.getWaitingThreads(c); |
1219 |
|
* hasWaiters returns true when a thread is waiting, else false |
1220 |
|
*/ |
1221 |
|
public void testHasWaiters() throws InterruptedException { |
1222 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1222 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1223 |
|
final Condition c = lock.writeLock().newCondition(); |
1224 |
< |
Thread t = new Thread(new Runnable() { |
1225 |
< |
public void run() { |
1226 |
< |
try { |
1227 |
< |
lock.writeLock().lock(); |
1228 |
< |
threadAssertFalse(lock.hasWaiters(c)); |
1229 |
< |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
1230 |
< |
c.await(); |
1231 |
< |
lock.writeLock().unlock(); |
1320 |
< |
} |
1321 |
< |
catch (InterruptedException e) { |
1322 |
< |
threadUnexpectedException(); |
1323 |
< |
} |
1324 |
< |
} |
1325 |
< |
}); |
1224 |
> |
Thread t = new Thread(new CheckedRunnable() { |
1225 |
> |
public void realRun() throws InterruptedException { |
1226 |
> |
lock.writeLock().lock(); |
1227 |
> |
threadAssertFalse(lock.hasWaiters(c)); |
1228 |
> |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
1229 |
> |
c.await(); |
1230 |
> |
lock.writeLock().unlock(); |
1231 |
> |
}}); |
1232 |
|
|
1233 |
|
t.start(); |
1234 |
|
Thread.sleep(SHORT_DELAY_MS); |
1250 |
|
* getWaitQueueLength returns number of waiting threads |
1251 |
|
*/ |
1252 |
|
public void testGetWaitQueueLength() throws InterruptedException { |
1253 |
< |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1253 |
> |
final ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); |
1254 |
|
final Condition c = lock.writeLock().newCondition(); |
1255 |
< |
Thread t = new Thread(new Runnable() { |
1256 |
< |
public void run() { |
1257 |
< |
try { |
1258 |
< |
lock.writeLock().lock(); |
1259 |
< |
threadAssertFalse(lock.hasWaiters(c)); |
1260 |
< |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
1261 |
< |
c.await(); |
1262 |
< |
lock.writeLock().unlock(); |
1357 |
< |
} |
1358 |
< |
catch (InterruptedException e) { |
1359 |
< |
threadUnexpectedException(); |
1360 |
< |
} |
1361 |
< |
} |
1362 |
< |
}); |
1255 |
> |
Thread t = new Thread(new CheckedRunnable() { |
1256 |
> |
public void realRun() throws InterruptedException { |
1257 |
> |
lock.writeLock().lock(); |
1258 |
> |
threadAssertFalse(lock.hasWaiters(c)); |
1259 |
> |
threadAssertEquals(0, lock.getWaitQueueLength(c)); |
1260 |
> |
c.await(); |
1261 |
> |
lock.writeLock().unlock(); |
1262 |
> |
}}); |
1263 |
|
|
1264 |
|
t.start(); |
1265 |
|
Thread.sleep(SHORT_DELAY_MS); |
1282 |
|
* getWaitingThreads returns only and all waiting threads |
1283 |
|
*/ |
1284 |
|
public void testGetWaitingThreads() throws InterruptedException { |
1285 |
< |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1285 |
> |
final PublicReentrantReadWriteLock lock = new PublicReentrantReadWriteLock(); |
1286 |
|
final Condition c = lock.writeLock().newCondition(); |
1287 |
< |
Thread t1 = new Thread(new Runnable() { |
1288 |
< |
public void run() { |
1289 |
< |
try { |
1290 |
< |
lock.writeLock().lock(); |
1291 |
< |
threadAssertTrue(lock.getWaitingThreads(c).isEmpty()); |
1292 |
< |
c.await(); |
1293 |
< |
lock.writeLock().unlock(); |
1294 |
< |
} |
1295 |
< |
catch (InterruptedException e) { |
1296 |
< |
threadUnexpectedException(); |
1297 |
< |
} |
1298 |
< |
} |
1299 |
< |
}); |
1300 |
< |
|
1301 |
< |
Thread t2 = new Thread(new Runnable() { |
1402 |
< |
public void run() { |
1403 |
< |
try { |
1404 |
< |
lock.writeLock().lock(); |
1405 |
< |
threadAssertFalse(lock.getWaitingThreads(c).isEmpty()); |
1406 |
< |
c.await(); |
1407 |
< |
lock.writeLock().unlock(); |
1408 |
< |
} |
1409 |
< |
catch (InterruptedException e) { |
1410 |
< |
threadUnexpectedException(); |
1411 |
< |
} |
1412 |
< |
} |
1413 |
< |
}); |
1287 |
> |
Thread t1 = new Thread(new CheckedRunnable() { |
1288 |
> |
public void realRun() throws InterruptedException { |
1289 |
> |
lock.writeLock().lock(); |
1290 |
> |
threadAssertTrue(lock.getWaitingThreads(c).isEmpty()); |
1291 |
> |
c.await(); |
1292 |
> |
lock.writeLock().unlock(); |
1293 |
> |
}}); |
1294 |
> |
|
1295 |
> |
Thread t2 = new Thread(new CheckedRunnable() { |
1296 |
> |
public void realRun() throws InterruptedException { |
1297 |
> |
lock.writeLock().lock(); |
1298 |
> |
threadAssertFalse(lock.getWaitingThreads(c).isEmpty()); |
1299 |
> |
c.await(); |
1300 |
> |
lock.writeLock().unlock(); |
1301 |
> |
}}); |
1302 |
|
|
1303 |
|
lock.writeLock().lock(); |
1304 |
|
assertTrue(lock.getWaitingThreads(c).isEmpty()); |