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dl |
1.1 |
/* |
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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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jsr166 |
1.22 |
* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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dl |
1.1 |
*/ |
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import junit.framework.*; |
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import java.util.*; |
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import java.util.concurrent.*; |
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import java.util.concurrent.locks.*; |
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import java.io.*; |
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public class AbstractQueuedSynchronizerTest 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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} |
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public static Test suite() { |
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return new TestSuite(AbstractQueuedSynchronizerTest.class); |
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} |
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/** |
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dl |
1.12 |
* A simple mutex class, adapted from the |
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* AbstractQueuedSynchronizer javadoc. Exclusive acquire tests |
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* exercise this as a sample user extension. Other |
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* methods/features of AbstractQueuedSynchronizerTest are tested |
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* via other test classes, including those for ReentrantLock, |
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* ReentrantReadWriteLock, and Semaphore |
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*/ |
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static class Mutex extends AbstractQueuedSynchronizer { |
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dl |
1.16 |
public boolean isHeldExclusively() { return getState() == 1; } |
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jsr166 |
1.22 |
|
35 |
dl |
1.16 |
public boolean tryAcquire(int acquires) { |
36 |
jsr166 |
1.22 |
assertTrue(acquires == 1); |
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dl |
1.12 |
return compareAndSetState(0, 1); |
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} |
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jsr166 |
1.22 |
|
40 |
dl |
1.16 |
public boolean tryRelease(int releases) { |
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if (getState() == 0) throw new IllegalMonitorStateException(); |
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dl |
1.12 |
setState(0); |
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return true; |
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} |
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jsr166 |
1.22 |
|
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dl |
1.15 |
public AbstractQueuedSynchronizer.ConditionObject newCondition() { return new AbstractQueuedSynchronizer.ConditionObject(); } |
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dl |
1.12 |
|
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} |
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jsr166 |
1.22 |
|
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dl |
1.12 |
/** |
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* A simple latch class, to test shared mode. |
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*/ |
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jsr166 |
1.22 |
static class BooleanLatch extends AbstractQueuedSynchronizer { |
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dl |
1.12 |
public boolean isSignalled() { return getState() != 0; } |
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public int tryAcquireShared(int ignore) { |
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return isSignalled()? 1 : -1; |
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dl |
1.1 |
} |
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jsr166 |
1.22 |
|
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dl |
1.12 |
public boolean tryReleaseShared(int ignore) { |
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setState(1); |
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return true; |
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dl |
1.1 |
} |
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} |
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/** |
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jsr166 |
1.28 |
* A runnable calling acquireInterruptibly that does not expect to |
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* be interrupted. |
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dl |
1.1 |
*/ |
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jsr166 |
1.28 |
class InterruptibleSyncRunnable extends CheckedRunnable { |
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dl |
1.17 |
final Mutex sync; |
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InterruptibleSyncRunnable(Mutex l) { sync = l; } |
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jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
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sync.acquireInterruptibly(1); |
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dl |
1.1 |
} |
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} |
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/** |
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dl |
1.16 |
* A runnable calling acquireInterruptibly that expects to be |
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jsr166 |
1.28 |
* interrupted. |
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dl |
1.1 |
*/ |
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jsr166 |
1.28 |
class InterruptedSyncRunnable extends CheckedInterruptedRunnable { |
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dl |
1.17 |
final Mutex sync; |
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InterruptedSyncRunnable(Mutex l) { sync = l; } |
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jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
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sync.acquireInterruptibly(1); |
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dl |
1.1 |
} |
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} |
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dl |
1.16 |
|
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/** |
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* isHeldExclusively is false upon construction |
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*/ |
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jsr166 |
1.22 |
public void testIsHeldExclusively() { |
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jsr166 |
1.29 |
Mutex rl = new Mutex(); |
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dl |
1.16 |
assertFalse(rl.isHeldExclusively()); |
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} |
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jsr166 |
1.22 |
|
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dl |
1.1 |
/** |
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dl |
1.17 |
* acquiring released sync succeeds |
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dl |
1.1 |
*/ |
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jsr166 |
1.22 |
public void testAcquire() { |
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jsr166 |
1.29 |
Mutex rl = new Mutex(); |
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dl |
1.16 |
rl.acquire(1); |
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assertTrue(rl.isHeldExclusively()); |
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rl.release(1); |
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dl |
1.17 |
assertFalse(rl.isHeldExclusively()); |
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dl |
1.1 |
} |
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/** |
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dl |
1.17 |
* tryAcquire on an released sync succeeds |
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dl |
1.1 |
*/ |
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jsr166 |
1.22 |
public void testTryAcquire() { |
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jsr166 |
1.29 |
Mutex rl = new Mutex(); |
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dl |
1.16 |
assertTrue(rl.tryAcquire(1)); |
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assertTrue(rl.isHeldExclusively()); |
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rl.release(1); |
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dl |
1.1 |
} |
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/** |
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* hasQueuedThreads reports whether there are waiting threads |
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*/ |
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jsr166 |
1.26 |
public void testhasQueuedThreads() throws InterruptedException { |
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jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
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dl |
1.17 |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
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Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
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jsr166 |
1.26 |
assertFalse(sync.hasQueuedThreads()); |
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sync.acquire(1); |
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t1.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertTrue(sync.hasQueuedThreads()); |
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t2.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertTrue(sync.hasQueuedThreads()); |
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t1.interrupt(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertTrue(sync.hasQueuedThreads()); |
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sync.release(1); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertFalse(sync.hasQueuedThreads()); |
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t1.join(); |
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t2.join(); |
144 |
jsr166 |
1.22 |
} |
145 |
dl |
1.10 |
|
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/** |
147 |
dl |
1.11 |
* isQueued(null) throws NPE |
148 |
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*/ |
149 |
jsr166 |
1.22 |
public void testIsQueuedNPE() { |
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jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
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dl |
1.11 |
try { |
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dl |
1.17 |
sync.isQueued(null); |
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dl |
1.11 |
shouldThrow(); |
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jsr166 |
1.26 |
} catch (NullPointerException success) {} |
155 |
dl |
1.11 |
} |
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157 |
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/** |
158 |
dl |
1.10 |
* isQueued reports whether a thread is queued. |
159 |
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*/ |
160 |
jsr166 |
1.26 |
public void testIsQueued() throws InterruptedException { |
161 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
162 |
dl |
1.17 |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
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Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
164 |
jsr166 |
1.26 |
assertFalse(sync.isQueued(t1)); |
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assertFalse(sync.isQueued(t2)); |
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sync.acquire(1); |
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t1.start(); |
168 |
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Thread.sleep(SHORT_DELAY_MS); |
169 |
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assertTrue(sync.isQueued(t1)); |
170 |
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t2.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertTrue(sync.isQueued(t1)); |
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assertTrue(sync.isQueued(t2)); |
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t1.interrupt(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertFalse(sync.isQueued(t1)); |
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assertTrue(sync.isQueued(t2)); |
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sync.release(1); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertFalse(sync.isQueued(t1)); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertFalse(sync.isQueued(t2)); |
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t1.join(); |
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t2.join(); |
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jsr166 |
1.22 |
} |
186 |
dl |
1.8 |
|
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dl |
1.12 |
/** |
188 |
dl |
1.17 |
* getFirstQueuedThread returns first waiting thread or null if none |
189 |
dl |
1.12 |
*/ |
190 |
jsr166 |
1.26 |
public void testGetFirstQueuedThread() throws InterruptedException { |
191 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
192 |
dl |
1.17 |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
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Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
194 |
jsr166 |
1.26 |
assertNull(sync.getFirstQueuedThread()); |
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sync.acquire(1); |
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t1.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertEquals(t1, sync.getFirstQueuedThread()); |
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t2.start(); |
200 |
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Thread.sleep(SHORT_DELAY_MS); |
201 |
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assertEquals(t1, sync.getFirstQueuedThread()); |
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t1.interrupt(); |
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Thread.sleep(SHORT_DELAY_MS); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertEquals(t2, sync.getFirstQueuedThread()); |
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sync.release(1); |
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Thread.sleep(SHORT_DELAY_MS); |
208 |
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assertNull(sync.getFirstQueuedThread()); |
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t1.join(); |
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t2.join(); |
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jsr166 |
1.22 |
} |
212 |
dl |
1.12 |
|
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dl |
1.8 |
|
214 |
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/** |
215 |
dl |
1.12 |
* hasContended reports false if no thread has ever blocked, else true |
216 |
dl |
1.8 |
*/ |
217 |
jsr166 |
1.26 |
public void testHasContended() throws InterruptedException { |
218 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
219 |
dl |
1.17 |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
220 |
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Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
221 |
jsr166 |
1.26 |
assertFalse(sync.hasContended()); |
222 |
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sync.acquire(1); |
223 |
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t1.start(); |
224 |
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Thread.sleep(SHORT_DELAY_MS); |
225 |
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assertTrue(sync.hasContended()); |
226 |
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t2.start(); |
227 |
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Thread.sleep(SHORT_DELAY_MS); |
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assertTrue(sync.hasContended()); |
229 |
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t1.interrupt(); |
230 |
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Thread.sleep(SHORT_DELAY_MS); |
231 |
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assertTrue(sync.hasContended()); |
232 |
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sync.release(1); |
233 |
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Thread.sleep(SHORT_DELAY_MS); |
234 |
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assertTrue(sync.hasContended()); |
235 |
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t1.join(); |
236 |
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t2.join(); |
237 |
jsr166 |
1.22 |
} |
238 |
dl |
1.17 |
|
239 |
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/** |
240 |
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* getQueuedThreads includes waiting threads |
241 |
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*/ |
242 |
jsr166 |
1.26 |
public void testGetQueuedThreads() throws InterruptedException { |
243 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
244 |
dl |
1.17 |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
245 |
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Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
246 |
jsr166 |
1.26 |
assertTrue(sync.getQueuedThreads().isEmpty()); |
247 |
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sync.acquire(1); |
248 |
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assertTrue(sync.getQueuedThreads().isEmpty()); |
249 |
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t1.start(); |
250 |
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Thread.sleep(SHORT_DELAY_MS); |
251 |
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assertTrue(sync.getQueuedThreads().contains(t1)); |
252 |
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t2.start(); |
253 |
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Thread.sleep(SHORT_DELAY_MS); |
254 |
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assertTrue(sync.getQueuedThreads().contains(t1)); |
255 |
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assertTrue(sync.getQueuedThreads().contains(t2)); |
256 |
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t1.interrupt(); |
257 |
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Thread.sleep(SHORT_DELAY_MS); |
258 |
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assertFalse(sync.getQueuedThreads().contains(t1)); |
259 |
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assertTrue(sync.getQueuedThreads().contains(t2)); |
260 |
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sync.release(1); |
261 |
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Thread.sleep(SHORT_DELAY_MS); |
262 |
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assertTrue(sync.getQueuedThreads().isEmpty()); |
263 |
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t1.join(); |
264 |
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t2.join(); |
265 |
jsr166 |
1.22 |
} |
266 |
dl |
1.17 |
|
267 |
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/** |
268 |
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* getExclusiveQueuedThreads includes waiting threads |
269 |
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*/ |
270 |
jsr166 |
1.26 |
public void testGetExclusiveQueuedThreads() throws InterruptedException { |
271 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
272 |
dl |
1.17 |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
273 |
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Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
274 |
jsr166 |
1.26 |
assertTrue(sync.getExclusiveQueuedThreads().isEmpty()); |
275 |
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sync.acquire(1); |
276 |
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assertTrue(sync.getExclusiveQueuedThreads().isEmpty()); |
277 |
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t1.start(); |
278 |
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Thread.sleep(SHORT_DELAY_MS); |
279 |
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assertTrue(sync.getExclusiveQueuedThreads().contains(t1)); |
280 |
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t2.start(); |
281 |
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Thread.sleep(SHORT_DELAY_MS); |
282 |
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assertTrue(sync.getExclusiveQueuedThreads().contains(t1)); |
283 |
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assertTrue(sync.getExclusiveQueuedThreads().contains(t2)); |
284 |
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t1.interrupt(); |
285 |
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Thread.sleep(SHORT_DELAY_MS); |
286 |
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assertFalse(sync.getExclusiveQueuedThreads().contains(t1)); |
287 |
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assertTrue(sync.getExclusiveQueuedThreads().contains(t2)); |
288 |
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sync.release(1); |
289 |
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Thread.sleep(SHORT_DELAY_MS); |
290 |
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assertTrue(sync.getExclusiveQueuedThreads().isEmpty()); |
291 |
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t1.join(); |
292 |
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t2.join(); |
293 |
jsr166 |
1.22 |
} |
294 |
dl |
1.17 |
|
295 |
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/** |
296 |
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* getSharedQueuedThreads does not include exclusively waiting threads |
297 |
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*/ |
298 |
jsr166 |
1.26 |
public void testGetSharedQueuedThreads() throws InterruptedException { |
299 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
300 |
dl |
1.17 |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
301 |
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Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
302 |
jsr166 |
1.26 |
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
303 |
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sync.acquire(1); |
304 |
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assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
305 |
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t1.start(); |
306 |
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Thread.sleep(SHORT_DELAY_MS); |
307 |
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assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
308 |
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t2.start(); |
309 |
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Thread.sleep(SHORT_DELAY_MS); |
310 |
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assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
311 |
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t1.interrupt(); |
312 |
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Thread.sleep(SHORT_DELAY_MS); |
313 |
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assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
314 |
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sync.release(1); |
315 |
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Thread.sleep(SHORT_DELAY_MS); |
316 |
|
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assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
317 |
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t1.join(); |
318 |
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t2.join(); |
319 |
jsr166 |
1.22 |
} |
320 |
dl |
1.1 |
|
321 |
|
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/** |
322 |
dl |
1.16 |
* tryAcquireNanos is interruptible. |
323 |
dl |
1.1 |
*/ |
324 |
jsr166 |
1.27 |
public void testInterruptedException2() throws InterruptedException { |
325 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
326 |
|
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sync.acquire(1); |
327 |
|
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Thread t = new Thread(new CheckedInterruptedRunnable() { |
328 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
329 |
|
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sync.tryAcquireNanos(1, MEDIUM_DELAY_MS * 1000 * 1000); |
330 |
|
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}}); |
331 |
jsr166 |
1.26 |
|
332 |
|
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t.start(); |
333 |
|
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t.interrupt(); |
334 |
jsr166 |
1.27 |
t.join(); |
335 |
dl |
1.1 |
} |
336 |
|
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|
337 |
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|
338 |
|
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/** |
339 |
dl |
1.17 |
* TryAcquire on exclusively held sync fails |
340 |
dl |
1.1 |
*/ |
341 |
jsr166 |
1.26 |
public void testTryAcquireWhenSynced() throws InterruptedException { |
342 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
343 |
|
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sync.acquire(1); |
344 |
|
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Thread t = new Thread(new CheckedRunnable() { |
345 |
jsr166 |
1.28 |
public void realRun() { |
346 |
|
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threadAssertFalse(sync.tryAcquire(1)); |
347 |
|
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}}); |
348 |
jsr166 |
1.26 |
|
349 |
|
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t.start(); |
350 |
|
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t.join(); |
351 |
|
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sync.release(1); |
352 |
jsr166 |
1.22 |
} |
353 |
dl |
1.1 |
|
354 |
|
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/** |
355 |
dl |
1.17 |
* tryAcquireNanos on an exclusively held sync times out |
356 |
dl |
1.1 |
*/ |
357 |
jsr166 |
1.26 |
public void testAcquireNanos_Timeout() throws InterruptedException { |
358 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
359 |
|
|
sync.acquire(1); |
360 |
|
|
Thread t = new Thread(new CheckedRunnable() { |
361 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
362 |
|
|
threadAssertFalse(sync.tryAcquireNanos(1, 1000 * 1000)); |
363 |
|
|
}}); |
364 |
jsr166 |
1.26 |
|
365 |
|
|
t.start(); |
366 |
|
|
t.join(); |
367 |
|
|
sync.release(1); |
368 |
jsr166 |
1.22 |
} |
369 |
|
|
|
370 |
|
|
|
371 |
dl |
1.1 |
/** |
372 |
dl |
1.13 |
* getState is true when acquired and false when not |
373 |
dl |
1.1 |
*/ |
374 |
jsr166 |
1.26 |
public void testGetState() throws InterruptedException { |
375 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
376 |
|
|
sync.acquire(1); |
377 |
|
|
assertTrue(sync.isHeldExclusively()); |
378 |
|
|
sync.release(1); |
379 |
|
|
assertFalse(sync.isHeldExclusively()); |
380 |
|
|
Thread t = new Thread(new CheckedRunnable() { |
381 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
382 |
|
|
sync.acquire(1); |
383 |
|
|
Thread.sleep(SMALL_DELAY_MS); |
384 |
|
|
sync.release(1); |
385 |
|
|
}}); |
386 |
jsr166 |
1.26 |
|
387 |
|
|
t.start(); |
388 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
389 |
|
|
assertTrue(sync.isHeldExclusively()); |
390 |
|
|
t.join(); |
391 |
|
|
assertFalse(sync.isHeldExclusively()); |
392 |
dl |
1.1 |
} |
393 |
|
|
|
394 |
|
|
|
395 |
|
|
/** |
396 |
dl |
1.16 |
* acquireInterruptibly is interruptible. |
397 |
dl |
1.1 |
*/ |
398 |
jsr166 |
1.26 |
public void testAcquireInterruptibly1() throws InterruptedException { |
399 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
400 |
|
|
sync.acquire(1); |
401 |
|
|
Thread t = new Thread(new InterruptedSyncRunnable(sync)); |
402 |
jsr166 |
1.26 |
|
403 |
|
|
t.start(); |
404 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
405 |
|
|
t.interrupt(); |
406 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
407 |
|
|
sync.release(1); |
408 |
|
|
t.join(); |
409 |
jsr166 |
1.22 |
} |
410 |
dl |
1.1 |
|
411 |
|
|
/** |
412 |
dl |
1.16 |
* acquireInterruptibly succeeds when released, else is interruptible |
413 |
dl |
1.1 |
*/ |
414 |
jsr166 |
1.26 |
public void testAcquireInterruptibly2() throws InterruptedException { |
415 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
416 |
jsr166 |
1.26 |
sync.acquireInterruptibly(1); |
417 |
jsr166 |
1.29 |
Thread t = new Thread(new InterruptedSyncRunnable(sync)); |
418 |
jsr166 |
1.26 |
t.start(); |
419 |
|
|
t.interrupt(); |
420 |
|
|
assertTrue(sync.isHeldExclusively()); |
421 |
|
|
t.join(); |
422 |
dl |
1.1 |
} |
423 |
|
|
|
424 |
|
|
/** |
425 |
dl |
1.17 |
* owns is true for a condition created by sync else false |
426 |
dl |
1.12 |
*/ |
427 |
|
|
public void testOwns() { |
428 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
429 |
dl |
1.17 |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
430 |
|
|
final Mutex sync2 = new Mutex(); |
431 |
|
|
assertTrue(sync.owns(c)); |
432 |
|
|
assertFalse(sync2.owns(c)); |
433 |
dl |
1.12 |
} |
434 |
|
|
|
435 |
|
|
/** |
436 |
dl |
1.17 |
* Calling await without holding sync throws IllegalMonitorStateException |
437 |
dl |
1.1 |
*/ |
438 |
jsr166 |
1.26 |
public void testAwait_IllegalMonitor() throws InterruptedException { |
439 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
440 |
dl |
1.17 |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
441 |
dl |
1.1 |
try { |
442 |
|
|
c.await(); |
443 |
|
|
shouldThrow(); |
444 |
jsr166 |
1.28 |
} catch (IllegalMonitorStateException success) {} |
445 |
dl |
1.1 |
} |
446 |
|
|
|
447 |
|
|
/** |
448 |
dl |
1.17 |
* Calling signal without holding sync throws IllegalMonitorStateException |
449 |
dl |
1.1 |
*/ |
450 |
|
|
public void testSignal_IllegalMonitor() { |
451 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
452 |
dl |
1.17 |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
453 |
dl |
1.1 |
try { |
454 |
|
|
c.signal(); |
455 |
|
|
shouldThrow(); |
456 |
jsr166 |
1.28 |
} catch (IllegalMonitorStateException success) {} |
457 |
dl |
1.1 |
} |
458 |
|
|
|
459 |
|
|
/** |
460 |
|
|
* awaitNanos without a signal times out |
461 |
|
|
*/ |
462 |
jsr166 |
1.26 |
public void testAwaitNanos_Timeout() throws InterruptedException { |
463 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
464 |
dl |
1.17 |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
465 |
jsr166 |
1.26 |
sync.acquire(1); |
466 |
|
|
long t = c.awaitNanos(100); |
467 |
|
|
assertTrue(t <= 0); |
468 |
|
|
sync.release(1); |
469 |
dl |
1.1 |
} |
470 |
|
|
|
471 |
|
|
/** |
472 |
dl |
1.17 |
* Timed await without a signal times out |
473 |
dl |
1.1 |
*/ |
474 |
jsr166 |
1.26 |
public void testAwait_Timeout() throws InterruptedException { |
475 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
476 |
dl |
1.17 |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
477 |
jsr166 |
1.26 |
sync.acquire(1); |
478 |
|
|
assertFalse(c.await(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
479 |
|
|
sync.release(1); |
480 |
dl |
1.1 |
} |
481 |
|
|
|
482 |
|
|
/** |
483 |
|
|
* awaitUntil without a signal times out |
484 |
|
|
*/ |
485 |
jsr166 |
1.26 |
public void testAwaitUntil_Timeout() throws InterruptedException { |
486 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
487 |
dl |
1.17 |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
488 |
jsr166 |
1.26 |
sync.acquire(1); |
489 |
|
|
java.util.Date d = new java.util.Date(); |
490 |
|
|
assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10))); |
491 |
|
|
sync.release(1); |
492 |
dl |
1.1 |
} |
493 |
|
|
|
494 |
|
|
/** |
495 |
|
|
* await returns when signalled |
496 |
|
|
*/ |
497 |
jsr166 |
1.26 |
public void testAwait() throws InterruptedException { |
498 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
499 |
dl |
1.17 |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
500 |
jsr166 |
1.29 |
Thread t = new Thread(new CheckedRunnable() { |
501 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
502 |
|
|
sync.acquire(1); |
503 |
|
|
c.await(); |
504 |
|
|
sync.release(1); |
505 |
|
|
}}); |
506 |
dl |
1.15 |
|
507 |
jsr166 |
1.26 |
t.start(); |
508 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
509 |
|
|
sync.acquire(1); |
510 |
|
|
c.signal(); |
511 |
|
|
sync.release(1); |
512 |
|
|
t.join(SHORT_DELAY_MS); |
513 |
|
|
assertFalse(t.isAlive()); |
514 |
dl |
1.15 |
} |
515 |
|
|
|
516 |
|
|
|
517 |
|
|
|
518 |
|
|
/** |
519 |
|
|
* hasWaiters throws NPE if null |
520 |
|
|
*/ |
521 |
|
|
public void testHasWaitersNPE() { |
522 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
523 |
dl |
1.15 |
try { |
524 |
dl |
1.17 |
sync.hasWaiters(null); |
525 |
dl |
1.15 |
shouldThrow(); |
526 |
jsr166 |
1.26 |
} catch (NullPointerException success) {} |
527 |
dl |
1.15 |
} |
528 |
|
|
|
529 |
|
|
/** |
530 |
|
|
* getWaitQueueLength throws NPE if null |
531 |
|
|
*/ |
532 |
|
|
public void testGetWaitQueueLengthNPE() { |
533 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
534 |
dl |
1.15 |
try { |
535 |
dl |
1.17 |
sync.getWaitQueueLength(null); |
536 |
dl |
1.15 |
shouldThrow(); |
537 |
jsr166 |
1.26 |
} catch (NullPointerException success) {} |
538 |
dl |
1.15 |
} |
539 |
|
|
|
540 |
|
|
|
541 |
|
|
/** |
542 |
|
|
* getWaitingThreads throws NPE if null |
543 |
|
|
*/ |
544 |
|
|
public void testGetWaitingThreadsNPE() { |
545 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
546 |
dl |
1.15 |
try { |
547 |
dl |
1.17 |
sync.getWaitingThreads(null); |
548 |
dl |
1.15 |
shouldThrow(); |
549 |
jsr166 |
1.26 |
} catch (NullPointerException success) {} |
550 |
dl |
1.15 |
} |
551 |
|
|
|
552 |
|
|
|
553 |
|
|
/** |
554 |
|
|
* hasWaiters throws IAE if not owned |
555 |
|
|
*/ |
556 |
|
|
public void testHasWaitersIAE() { |
557 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
558 |
jsr166 |
1.25 |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
559 |
jsr166 |
1.29 |
final Mutex sync2 = new Mutex(); |
560 |
dl |
1.15 |
try { |
561 |
dl |
1.17 |
sync2.hasWaiters(c); |
562 |
dl |
1.15 |
shouldThrow(); |
563 |
jsr166 |
1.26 |
} catch (IllegalArgumentException success) {} |
564 |
dl |
1.15 |
} |
565 |
|
|
|
566 |
|
|
/** |
567 |
dl |
1.17 |
* hasWaiters throws IMSE if not synced |
568 |
dl |
1.15 |
*/ |
569 |
|
|
public void testHasWaitersIMSE() { |
570 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
571 |
jsr166 |
1.25 |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
572 |
dl |
1.15 |
try { |
573 |
dl |
1.17 |
sync.hasWaiters(c); |
574 |
dl |
1.15 |
shouldThrow(); |
575 |
jsr166 |
1.26 |
} catch (IllegalMonitorStateException success) {} |
576 |
dl |
1.15 |
} |
577 |
|
|
|
578 |
|
|
|
579 |
|
|
/** |
580 |
|
|
* getWaitQueueLength throws IAE if not owned |
581 |
|
|
*/ |
582 |
|
|
public void testGetWaitQueueLengthIAE() { |
583 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
584 |
jsr166 |
1.25 |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
585 |
jsr166 |
1.29 |
final Mutex sync2 = new Mutex(); |
586 |
dl |
1.15 |
try { |
587 |
dl |
1.17 |
sync2.getWaitQueueLength(c); |
588 |
dl |
1.15 |
shouldThrow(); |
589 |
jsr166 |
1.26 |
} catch (IllegalArgumentException success) {} |
590 |
dl |
1.15 |
} |
591 |
|
|
|
592 |
|
|
/** |
593 |
dl |
1.17 |
* getWaitQueueLength throws IMSE if not synced |
594 |
dl |
1.15 |
*/ |
595 |
|
|
public void testGetWaitQueueLengthIMSE() { |
596 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
597 |
jsr166 |
1.25 |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
598 |
dl |
1.15 |
try { |
599 |
dl |
1.17 |
sync.getWaitQueueLength(c); |
600 |
dl |
1.15 |
shouldThrow(); |
601 |
jsr166 |
1.26 |
} catch (IllegalMonitorStateException success) {} |
602 |
dl |
1.15 |
} |
603 |
|
|
|
604 |
|
|
|
605 |
|
|
/** |
606 |
|
|
* getWaitingThreads throws IAE if not owned |
607 |
|
|
*/ |
608 |
|
|
public void testGetWaitingThreadsIAE() { |
609 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
610 |
jsr166 |
1.25 |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
611 |
jsr166 |
1.29 |
final Mutex sync2 = new Mutex(); |
612 |
dl |
1.15 |
try { |
613 |
dl |
1.17 |
sync2.getWaitingThreads(c); |
614 |
dl |
1.15 |
shouldThrow(); |
615 |
jsr166 |
1.26 |
} catch (IllegalArgumentException success) {} |
616 |
dl |
1.15 |
} |
617 |
|
|
|
618 |
|
|
/** |
619 |
dl |
1.17 |
* getWaitingThreads throws IMSE if not synced |
620 |
dl |
1.15 |
*/ |
621 |
|
|
public void testGetWaitingThreadsIMSE() { |
622 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
623 |
jsr166 |
1.25 |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
624 |
dl |
1.15 |
try { |
625 |
dl |
1.17 |
sync.getWaitingThreads(c); |
626 |
dl |
1.15 |
shouldThrow(); |
627 |
jsr166 |
1.26 |
} catch (IllegalMonitorStateException success) {} |
628 |
dl |
1.15 |
} |
629 |
|
|
|
630 |
|
|
|
631 |
|
|
|
632 |
|
|
/** |
633 |
|
|
* hasWaiters returns true when a thread is waiting, else false |
634 |
|
|
*/ |
635 |
jsr166 |
1.26 |
public void testHasWaiters() throws InterruptedException { |
636 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
637 |
dl |
1.17 |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
638 |
jsr166 |
1.29 |
Thread t = new Thread(new CheckedRunnable() { |
639 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
640 |
|
|
sync.acquire(1); |
641 |
|
|
threadAssertFalse(sync.hasWaiters(c)); |
642 |
|
|
threadAssertEquals(0, sync.getWaitQueueLength(c)); |
643 |
|
|
c.await(); |
644 |
|
|
sync.release(1); |
645 |
|
|
}}); |
646 |
dl |
1.15 |
|
647 |
jsr166 |
1.26 |
t.start(); |
648 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
649 |
|
|
sync.acquire(1); |
650 |
|
|
assertTrue(sync.hasWaiters(c)); |
651 |
|
|
assertEquals(1, sync.getWaitQueueLength(c)); |
652 |
|
|
c.signal(); |
653 |
|
|
sync.release(1); |
654 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
655 |
|
|
sync.acquire(1); |
656 |
|
|
assertFalse(sync.hasWaiters(c)); |
657 |
|
|
assertEquals(0, sync.getWaitQueueLength(c)); |
658 |
|
|
sync.release(1); |
659 |
|
|
t.join(SHORT_DELAY_MS); |
660 |
|
|
assertFalse(t.isAlive()); |
661 |
dl |
1.15 |
} |
662 |
|
|
|
663 |
|
|
/** |
664 |
|
|
* getWaitQueueLength returns number of waiting threads |
665 |
|
|
*/ |
666 |
jsr166 |
1.26 |
public void testGetWaitQueueLength() throws InterruptedException { |
667 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
668 |
dl |
1.17 |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
669 |
jsr166 |
1.29 |
Thread t1 = new Thread(new CheckedRunnable() { |
670 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
671 |
|
|
sync.acquire(1); |
672 |
|
|
threadAssertFalse(sync.hasWaiters(c)); |
673 |
|
|
threadAssertEquals(0, sync.getWaitQueueLength(c)); |
674 |
|
|
c.await(); |
675 |
|
|
sync.release(1); |
676 |
|
|
}}); |
677 |
|
|
|
678 |
jsr166 |
1.29 |
Thread t2 = new Thread(new CheckedRunnable() { |
679 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
680 |
|
|
sync.acquire(1); |
681 |
|
|
threadAssertTrue(sync.hasWaiters(c)); |
682 |
|
|
threadAssertEquals(1, sync.getWaitQueueLength(c)); |
683 |
|
|
c.await(); |
684 |
|
|
sync.release(1); |
685 |
|
|
}}); |
686 |
dl |
1.15 |
|
687 |
jsr166 |
1.26 |
t1.start(); |
688 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
689 |
|
|
t2.start(); |
690 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
691 |
|
|
sync.acquire(1); |
692 |
|
|
assertTrue(sync.hasWaiters(c)); |
693 |
|
|
assertEquals(2, sync.getWaitQueueLength(c)); |
694 |
|
|
c.signalAll(); |
695 |
|
|
sync.release(1); |
696 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
697 |
|
|
sync.acquire(1); |
698 |
|
|
assertFalse(sync.hasWaiters(c)); |
699 |
|
|
assertEquals(0, sync.getWaitQueueLength(c)); |
700 |
|
|
sync.release(1); |
701 |
|
|
t1.join(SHORT_DELAY_MS); |
702 |
|
|
t2.join(SHORT_DELAY_MS); |
703 |
|
|
assertFalse(t1.isAlive()); |
704 |
|
|
assertFalse(t2.isAlive()); |
705 |
dl |
1.15 |
} |
706 |
|
|
|
707 |
|
|
/** |
708 |
|
|
* getWaitingThreads returns only and all waiting threads |
709 |
|
|
*/ |
710 |
jsr166 |
1.26 |
public void testGetWaitingThreads() throws InterruptedException { |
711 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
712 |
dl |
1.17 |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
713 |
jsr166 |
1.29 |
Thread t1 = new Thread(new CheckedRunnable() { |
714 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
715 |
|
|
sync.acquire(1); |
716 |
|
|
threadAssertTrue(sync.getWaitingThreads(c).isEmpty()); |
717 |
|
|
c.await(); |
718 |
|
|
sync.release(1); |
719 |
|
|
}}); |
720 |
|
|
|
721 |
jsr166 |
1.29 |
Thread t2 = new Thread(new CheckedRunnable() { |
722 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
723 |
|
|
sync.acquire(1); |
724 |
|
|
threadAssertFalse(sync.getWaitingThreads(c).isEmpty()); |
725 |
|
|
c.await(); |
726 |
|
|
sync.release(1); |
727 |
|
|
}}); |
728 |
dl |
1.1 |
|
729 |
jsr166 |
1.26 |
sync.acquire(1); |
730 |
|
|
assertTrue(sync.getWaitingThreads(c).isEmpty()); |
731 |
|
|
sync.release(1); |
732 |
|
|
t1.start(); |
733 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
734 |
|
|
t2.start(); |
735 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
736 |
|
|
sync.acquire(1); |
737 |
|
|
assertTrue(sync.hasWaiters(c)); |
738 |
|
|
assertTrue(sync.getWaitingThreads(c).contains(t1)); |
739 |
|
|
assertTrue(sync.getWaitingThreads(c).contains(t2)); |
740 |
|
|
c.signalAll(); |
741 |
|
|
sync.release(1); |
742 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
743 |
|
|
sync.acquire(1); |
744 |
|
|
assertFalse(sync.hasWaiters(c)); |
745 |
|
|
assertTrue(sync.getWaitingThreads(c).isEmpty()); |
746 |
|
|
sync.release(1); |
747 |
|
|
t1.join(SHORT_DELAY_MS); |
748 |
|
|
t2.join(SHORT_DELAY_MS); |
749 |
|
|
assertFalse(t1.isAlive()); |
750 |
|
|
assertFalse(t2.isAlive()); |
751 |
dl |
1.15 |
} |
752 |
|
|
|
753 |
|
|
|
754 |
|
|
|
755 |
|
|
/** |
756 |
|
|
* awaitUninterruptibly doesn't abort on interrupt |
757 |
|
|
*/ |
758 |
jsr166 |
1.26 |
public void testAwaitUninterruptibly() throws InterruptedException { |
759 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
760 |
dl |
1.17 |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
761 |
jsr166 |
1.29 |
Thread t = new Thread(new CheckedRunnable() { |
762 |
jsr166 |
1.28 |
public void realRun() { |
763 |
|
|
sync.acquire(1); |
764 |
|
|
c.awaitUninterruptibly(); |
765 |
|
|
sync.release(1); |
766 |
|
|
}}); |
767 |
dl |
1.15 |
|
768 |
jsr166 |
1.26 |
t.start(); |
769 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
770 |
|
|
t.interrupt(); |
771 |
|
|
sync.acquire(1); |
772 |
|
|
c.signal(); |
773 |
|
|
sync.release(1); |
774 |
|
|
t.join(SHORT_DELAY_MS); |
775 |
|
|
assertFalse(t.isAlive()); |
776 |
dl |
1.15 |
} |
777 |
|
|
|
778 |
|
|
/** |
779 |
|
|
* await is interruptible |
780 |
|
|
*/ |
781 |
jsr166 |
1.26 |
public void testAwait_Interrupt() throws InterruptedException { |
782 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
783 |
dl |
1.17 |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
784 |
jsr166 |
1.29 |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
785 |
|
|
public void realRun() throws InterruptedException { |
786 |
jsr166 |
1.28 |
sync.acquire(1); |
787 |
|
|
c.await(); |
788 |
|
|
sync.release(1); |
789 |
|
|
}}); |
790 |
dl |
1.15 |
|
791 |
jsr166 |
1.26 |
t.start(); |
792 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
793 |
|
|
t.interrupt(); |
794 |
|
|
t.join(SHORT_DELAY_MS); |
795 |
|
|
assertFalse(t.isAlive()); |
796 |
dl |
1.15 |
} |
797 |
|
|
|
798 |
|
|
/** |
799 |
|
|
* awaitNanos is interruptible |
800 |
|
|
*/ |
801 |
jsr166 |
1.26 |
public void testAwaitNanos_Interrupt() throws InterruptedException { |
802 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
803 |
dl |
1.17 |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
804 |
jsr166 |
1.29 |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
805 |
|
|
public void realRun() throws InterruptedException { |
806 |
jsr166 |
1.28 |
sync.acquire(1); |
807 |
|
|
c.awaitNanos(1000 * 1000 * 1000); // 1 sec |
808 |
|
|
sync.release(1); |
809 |
|
|
}}); |
810 |
dl |
1.15 |
|
811 |
jsr166 |
1.26 |
t.start(); |
812 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
813 |
|
|
t.interrupt(); |
814 |
|
|
t.join(SHORT_DELAY_MS); |
815 |
|
|
assertFalse(t.isAlive()); |
816 |
dl |
1.15 |
} |
817 |
|
|
|
818 |
|
|
/** |
819 |
|
|
* awaitUntil is interruptible |
820 |
|
|
*/ |
821 |
jsr166 |
1.26 |
public void testAwaitUntil_Interrupt() throws InterruptedException { |
822 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
823 |
dl |
1.17 |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
824 |
jsr166 |
1.29 |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
825 |
|
|
public void realRun() throws InterruptedException { |
826 |
jsr166 |
1.28 |
sync.acquire(1); |
827 |
|
|
java.util.Date d = new java.util.Date(); |
828 |
|
|
c.awaitUntil(new java.util.Date(d.getTime() + 10000)); |
829 |
|
|
sync.release(1); |
830 |
|
|
}}); |
831 |
dl |
1.15 |
|
832 |
jsr166 |
1.26 |
t.start(); |
833 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
834 |
|
|
t.interrupt(); |
835 |
|
|
t.join(SHORT_DELAY_MS); |
836 |
|
|
assertFalse(t.isAlive()); |
837 |
dl |
1.12 |
} |
838 |
|
|
|
839 |
dl |
1.14 |
/** |
840 |
dl |
1.15 |
* signalAll wakes up all threads |
841 |
|
|
*/ |
842 |
jsr166 |
1.26 |
public void testSignalAll() throws InterruptedException { |
843 |
jsr166 |
1.29 |
final Mutex sync = new Mutex(); |
844 |
dl |
1.17 |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
845 |
jsr166 |
1.29 |
Thread t1 = new Thread(new CheckedRunnable() { |
846 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
847 |
|
|
sync.acquire(1); |
848 |
|
|
c.await(); |
849 |
|
|
sync.release(1); |
850 |
|
|
}}); |
851 |
|
|
|
852 |
jsr166 |
1.29 |
Thread t2 = new Thread(new CheckedRunnable() { |
853 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
854 |
|
|
sync.acquire(1); |
855 |
|
|
c.await(); |
856 |
|
|
sync.release(1); |
857 |
|
|
}}); |
858 |
dl |
1.15 |
|
859 |
jsr166 |
1.26 |
t1.start(); |
860 |
|
|
t2.start(); |
861 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
862 |
|
|
sync.acquire(1); |
863 |
|
|
c.signalAll(); |
864 |
|
|
sync.release(1); |
865 |
|
|
t1.join(SHORT_DELAY_MS); |
866 |
|
|
t2.join(SHORT_DELAY_MS); |
867 |
|
|
assertFalse(t1.isAlive()); |
868 |
|
|
assertFalse(t2.isAlive()); |
869 |
dl |
1.15 |
} |
870 |
|
|
|
871 |
|
|
|
872 |
|
|
/** |
873 |
dl |
1.14 |
* toString indicates current state |
874 |
|
|
*/ |
875 |
|
|
public void testToString() { |
876 |
dl |
1.17 |
Mutex sync = new Mutex(); |
877 |
|
|
String us = sync.toString(); |
878 |
dl |
1.14 |
assertTrue(us.indexOf("State = 0") >= 0); |
879 |
dl |
1.17 |
sync.acquire(1); |
880 |
|
|
String ls = sync.toString(); |
881 |
dl |
1.14 |
assertTrue(ls.indexOf("State = 1") >= 0); |
882 |
|
|
} |
883 |
|
|
|
884 |
|
|
/** |
885 |
|
|
* A serialized AQS deserializes with current state |
886 |
|
|
*/ |
887 |
jsr166 |
1.26 |
public void testSerialization() throws Exception { |
888 |
dl |
1.14 |
Mutex l = new Mutex(); |
889 |
dl |
1.16 |
l.acquire(1); |
890 |
|
|
assertTrue(l.isHeldExclusively()); |
891 |
dl |
1.14 |
|
892 |
jsr166 |
1.26 |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
893 |
|
|
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
894 |
|
|
out.writeObject(l); |
895 |
|
|
out.close(); |
896 |
|
|
|
897 |
|
|
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
898 |
|
|
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
899 |
|
|
Mutex r = (Mutex) in.readObject(); |
900 |
|
|
assertTrue(r.isHeldExclusively()); |
901 |
dl |
1.14 |
} |
902 |
|
|
|
903 |
dl |
1.12 |
|
904 |
|
|
/** |
905 |
dl |
1.15 |
* tryReleaseShared setting state changes getState |
906 |
dl |
1.12 |
*/ |
907 |
dl |
1.15 |
public void testGetStateWithReleaseShared() { |
908 |
jsr166 |
1.29 |
final BooleanLatch l = new BooleanLatch(); |
909 |
|
|
assertFalse(l.isSignalled()); |
910 |
|
|
l.releaseShared(0); |
911 |
|
|
assertTrue(l.isSignalled()); |
912 |
dl |
1.12 |
} |
913 |
|
|
|
914 |
|
|
/** |
915 |
dl |
1.17 |
* releaseShared has no effect when already signalled |
916 |
dl |
1.12 |
*/ |
917 |
dl |
1.13 |
public void testReleaseShared() { |
918 |
jsr166 |
1.29 |
final BooleanLatch l = new BooleanLatch(); |
919 |
|
|
assertFalse(l.isSignalled()); |
920 |
|
|
l.releaseShared(0); |
921 |
|
|
assertTrue(l.isSignalled()); |
922 |
|
|
l.releaseShared(0); |
923 |
|
|
assertTrue(l.isSignalled()); |
924 |
dl |
1.12 |
} |
925 |
|
|
|
926 |
|
|
/** |
927 |
|
|
* acquireSharedInterruptibly returns after release, but not before |
928 |
|
|
*/ |
929 |
jsr166 |
1.26 |
public void testAcquireSharedInterruptibly() throws InterruptedException { |
930 |
jsr166 |
1.29 |
final BooleanLatch l = new BooleanLatch(); |
931 |
dl |
1.12 |
|
932 |
jsr166 |
1.29 |
Thread t = new Thread(new CheckedRunnable() { |
933 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
934 |
|
|
threadAssertFalse(l.isSignalled()); |
935 |
|
|
l.acquireSharedInterruptibly(0); |
936 |
|
|
threadAssertTrue(l.isSignalled()); |
937 |
|
|
}}); |
938 |
jsr166 |
1.26 |
|
939 |
|
|
t.start(); |
940 |
|
|
assertFalse(l.isSignalled()); |
941 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
942 |
|
|
l.releaseShared(0); |
943 |
|
|
assertTrue(l.isSignalled()); |
944 |
|
|
t.join(); |
945 |
dl |
1.12 |
} |
946 |
jsr166 |
1.22 |
|
947 |
dl |
1.12 |
|
948 |
|
|
/** |
949 |
|
|
* acquireSharedTimed returns after release |
950 |
|
|
*/ |
951 |
jsr166 |
1.26 |
public void testAsquireSharedTimed() throws InterruptedException { |
952 |
jsr166 |
1.29 |
final BooleanLatch l = new BooleanLatch(); |
953 |
dl |
1.12 |
|
954 |
jsr166 |
1.29 |
Thread t = new Thread(new CheckedRunnable() { |
955 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
956 |
|
|
threadAssertFalse(l.isSignalled()); |
957 |
|
|
threadAssertTrue(l.tryAcquireSharedNanos(0, MEDIUM_DELAY_MS* 1000 * 1000)); |
958 |
|
|
threadAssertTrue(l.isSignalled()); |
959 |
|
|
}}); |
960 |
jsr166 |
1.26 |
|
961 |
|
|
t.start(); |
962 |
|
|
assertFalse(l.isSignalled()); |
963 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
964 |
|
|
l.releaseShared(0); |
965 |
|
|
assertTrue(l.isSignalled()); |
966 |
|
|
t.join(); |
967 |
dl |
1.12 |
} |
968 |
jsr166 |
1.22 |
|
969 |
dl |
1.12 |
/** |
970 |
|
|
* acquireSharedInterruptibly throws IE if interrupted before released |
971 |
|
|
*/ |
972 |
jsr166 |
1.26 |
public void testAcquireSharedInterruptibly_InterruptedException() throws InterruptedException { |
973 |
dl |
1.12 |
final BooleanLatch l = new BooleanLatch(); |
974 |
jsr166 |
1.29 |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
975 |
|
|
public void realRun() throws InterruptedException { |
976 |
jsr166 |
1.28 |
threadAssertFalse(l.isSignalled()); |
977 |
|
|
l.acquireSharedInterruptibly(0); |
978 |
|
|
}}); |
979 |
|
|
|
980 |
jsr166 |
1.29 |
t.start(); |
981 |
jsr166 |
1.26 |
assertFalse(l.isSignalled()); |
982 |
|
|
t.interrupt(); |
983 |
|
|
t.join(); |
984 |
dl |
1.12 |
} |
985 |
|
|
|
986 |
|
|
/** |
987 |
|
|
* acquireSharedTimed throws IE if interrupted before released |
988 |
|
|
*/ |
989 |
jsr166 |
1.26 |
public void testAcquireSharedNanos_InterruptedException() throws InterruptedException { |
990 |
dl |
1.12 |
final BooleanLatch l = new BooleanLatch(); |
991 |
jsr166 |
1.29 |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
992 |
|
|
public void realRun() throws InterruptedException { |
993 |
jsr166 |
1.28 |
threadAssertFalse(l.isSignalled()); |
994 |
|
|
l.tryAcquireSharedNanos(0, SMALL_DELAY_MS* 1000 * 1000); |
995 |
|
|
}}); |
996 |
|
|
|
997 |
dl |
1.12 |
t.start(); |
998 |
jsr166 |
1.26 |
Thread.sleep(SHORT_DELAY_MS); |
999 |
|
|
assertFalse(l.isSignalled()); |
1000 |
|
|
t.interrupt(); |
1001 |
|
|
t.join(); |
1002 |
dl |
1.12 |
} |
1003 |
|
|
|
1004 |
|
|
/** |
1005 |
|
|
* acquireSharedTimed times out if not released before timeout |
1006 |
|
|
*/ |
1007 |
jsr166 |
1.26 |
public void testAcquireSharedNanos_Timeout() throws InterruptedException { |
1008 |
dl |
1.12 |
final BooleanLatch l = new BooleanLatch(); |
1009 |
jsr166 |
1.29 |
Thread t = new Thread(new CheckedRunnable() { |
1010 |
jsr166 |
1.28 |
public void realRun() throws InterruptedException { |
1011 |
|
|
threadAssertFalse(l.isSignalled()); |
1012 |
|
|
threadAssertFalse(l.tryAcquireSharedNanos(0, SMALL_DELAY_MS* 1000 * 1000)); |
1013 |
|
|
}}); |
1014 |
|
|
|
1015 |
dl |
1.12 |
t.start(); |
1016 |
jsr166 |
1.26 |
Thread.sleep(SHORT_DELAY_MS); |
1017 |
|
|
assertFalse(l.isSignalled()); |
1018 |
|
|
t.join(); |
1019 |
dl |
1.1 |
} |
1020 |
dl |
1.14 |
|
1021 |
dl |
1.1 |
} |