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/* |
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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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* http://creativecommons.org/publicdomain/zero/1.0/ |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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*/ |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import static java.util.concurrent.TimeUnit.NANOSECONDS; |
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|
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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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import java.util.Arrays; |
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import java.util.Collection; |
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import java.util.HashSet; |
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import java.util.concurrent.locks.AbstractQueuedSynchronizer; |
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import java.util.concurrent.locks.AbstractQueuedSynchronizer.ConditionObject; |
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|
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import junit.framework.AssertionFailedError; |
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import junit.framework.Test; |
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import junit.framework.TestSuite; |
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|
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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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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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/** |
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* 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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* A simple mutex class, adapted from the class javadoc. Exclusive |
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* acquire tests exercise this as a sample user extension. Other |
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* methods/features of AbstractQueuedSynchronizer are tested via |
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* 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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public boolean isHeldExclusively() { return getState() == 1; } |
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/** An eccentric value for locked synchronizer state. */ |
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static final int LOCKED = (1 << 31) | (1 << 15); |
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|
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public boolean tryAcquire(int acquires) { |
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assertTrue(acquires == 1); |
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return compareAndSetState(0, 1); |
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static final int UNLOCKED = 0; |
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|
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@Override public boolean isHeldExclusively() { |
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int state = getState(); |
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assertTrue(state == UNLOCKED || state == LOCKED); |
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return state == LOCKED; |
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} |
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|
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@Override public boolean tryAcquire(int acquires) { |
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assertEquals(LOCKED, acquires); |
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return compareAndSetState(UNLOCKED, LOCKED); |
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} |
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|
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public boolean tryRelease(int releases) { |
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if (getState() == 0) throw new IllegalMonitorStateException(); |
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setState(0); |
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@Override public boolean tryRelease(int releases) { |
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if (getState() != LOCKED) throw new IllegalMonitorStateException(); |
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assertEquals(LOCKED, releases); |
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setState(UNLOCKED); |
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return true; |
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} |
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|
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public AbstractQueuedSynchronizer.ConditionObject newCondition() { return new AbstractQueuedSynchronizer.ConditionObject(); } |
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public boolean tryAcquireNanos(long nanos) throws InterruptedException { |
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return tryAcquireNanos(LOCKED, nanos); |
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} |
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|
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} |
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public boolean tryAcquire() { |
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return tryAcquire(LOCKED); |
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} |
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|
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public boolean tryRelease() { |
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return tryRelease(LOCKED); |
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} |
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|
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public void acquire() { |
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acquire(LOCKED); |
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} |
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|
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public void acquireInterruptibly() throws InterruptedException { |
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acquireInterruptibly(LOCKED); |
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} |
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|
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public void release() { |
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release(LOCKED); |
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} |
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|
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public ConditionObject newCondition() { |
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return new ConditionObject(); |
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} |
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} |
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|
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/** |
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* A simple latch class, to test shared mode. |
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public boolean isSignalled() { return getState() != 0; } |
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|
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public int tryAcquireShared(int ignore) { |
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return isSignalled()? 1 : -1; |
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return isSignalled() ? 1 : -1; |
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} |
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|
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public boolean tryReleaseShared(int ignore) { |
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} |
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|
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/** |
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* A runnable calling acquireInterruptibly |
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* A runnable calling acquireInterruptibly that does not expect to |
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* be interrupted. |
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*/ |
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class InterruptibleSyncRunnable implements Runnable { |
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class InterruptibleSyncRunnable extends CheckedRunnable { |
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final Mutex sync; |
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InterruptibleSyncRunnable(Mutex l) { sync = l; } |
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public void run() { |
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try { |
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sync.acquireInterruptibly(1); |
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} catch (InterruptedException success) {} |
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InterruptibleSyncRunnable(Mutex sync) { this.sync = sync; } |
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public void realRun() throws InterruptedException { |
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sync.acquireInterruptibly(); |
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} |
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} |
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|
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|
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/** |
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* A runnable calling acquireInterruptibly that expects to be |
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* interrupted |
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* interrupted. |
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*/ |
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class InterruptedSyncRunnable implements Runnable { |
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class InterruptedSyncRunnable extends CheckedInterruptedRunnable { |
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final Mutex sync; |
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InterruptedSyncRunnable(Mutex l) { sync = l; } |
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public void run() { |
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try { |
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sync.acquireInterruptibly(1); |
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threadShouldThrow(); |
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} catch (InterruptedException success) {} |
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InterruptedSyncRunnable(Mutex sync) { this.sync = sync; } |
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public void realRun() throws InterruptedException { |
126 |
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sync.acquireInterruptibly(); |
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} |
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} |
129 |
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|
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/** A constant to clarify calls to checking methods below. */ |
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static final Thread[] NO_THREADS = new Thread[0]; |
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|
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/** |
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* Spin-waits until sync.isQueued(t) becomes true. |
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*/ |
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void waitForQueuedThread(AbstractQueuedSynchronizer sync, Thread t) { |
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long startTime = System.nanoTime(); |
138 |
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while (!sync.isQueued(t)) { |
139 |
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if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
140 |
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throw new AssertionFailedError("timed out"); |
141 |
> |
Thread.yield(); |
142 |
> |
} |
143 |
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assertTrue(t.isAlive()); |
144 |
> |
} |
145 |
> |
|
146 |
> |
/** |
147 |
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* Checks that sync has exactly the given queued threads. |
148 |
> |
*/ |
149 |
> |
void assertHasQueuedThreads(AbstractQueuedSynchronizer sync, |
150 |
> |
Thread... expected) { |
151 |
> |
Collection<Thread> actual = sync.getQueuedThreads(); |
152 |
> |
assertEquals(expected.length > 0, sync.hasQueuedThreads()); |
153 |
> |
assertEquals(expected.length, sync.getQueueLength()); |
154 |
> |
assertEquals(expected.length, actual.size()); |
155 |
> |
assertEquals(expected.length == 0, actual.isEmpty()); |
156 |
> |
assertEquals(new HashSet<Thread>(actual), |
157 |
> |
new HashSet<Thread>(Arrays.asList(expected))); |
158 |
> |
} |
159 |
> |
|
160 |
> |
/** |
161 |
> |
* Checks that sync has exactly the given (exclusive) queued threads. |
162 |
> |
*/ |
163 |
> |
void assertHasExclusiveQueuedThreads(AbstractQueuedSynchronizer sync, |
164 |
> |
Thread... expected) { |
165 |
> |
assertHasQueuedThreads(sync, expected); |
166 |
> |
assertEquals(new HashSet<Thread>(sync.getExclusiveQueuedThreads()), |
167 |
> |
new HashSet<Thread>(sync.getQueuedThreads())); |
168 |
> |
assertEquals(0, sync.getSharedQueuedThreads().size()); |
169 |
> |
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
170 |
> |
} |
171 |
> |
|
172 |
> |
/** |
173 |
> |
* Checks that sync has exactly the given (shared) queued threads. |
174 |
> |
*/ |
175 |
> |
void assertHasSharedQueuedThreads(AbstractQueuedSynchronizer sync, |
176 |
> |
Thread... expected) { |
177 |
> |
assertHasQueuedThreads(sync, expected); |
178 |
> |
assertEquals(new HashSet<Thread>(sync.getSharedQueuedThreads()), |
179 |
> |
new HashSet<Thread>(sync.getQueuedThreads())); |
180 |
> |
assertEquals(0, sync.getExclusiveQueuedThreads().size()); |
181 |
> |
assertTrue(sync.getExclusiveQueuedThreads().isEmpty()); |
182 |
> |
} |
183 |
> |
|
184 |
> |
/** |
185 |
> |
* Checks that condition c has exactly the given waiter threads, |
186 |
> |
* after acquiring mutex. |
187 |
> |
*/ |
188 |
> |
void assertHasWaitersUnlocked(Mutex sync, ConditionObject c, |
189 |
> |
Thread... threads) { |
190 |
> |
sync.acquire(); |
191 |
> |
assertHasWaitersLocked(sync, c, threads); |
192 |
> |
sync.release(); |
193 |
> |
} |
194 |
> |
|
195 |
> |
/** |
196 |
> |
* Checks that condition c has exactly the given waiter threads. |
197 |
> |
*/ |
198 |
> |
void assertHasWaitersLocked(Mutex sync, ConditionObject c, |
199 |
> |
Thread... threads) { |
200 |
> |
assertEquals(threads.length > 0, sync.hasWaiters(c)); |
201 |
> |
assertEquals(threads.length, sync.getWaitQueueLength(c)); |
202 |
> |
assertEquals(threads.length == 0, sync.getWaitingThreads(c).isEmpty()); |
203 |
> |
assertEquals(threads.length, sync.getWaitingThreads(c).size()); |
204 |
> |
assertEquals(new HashSet<Thread>(sync.getWaitingThreads(c)), |
205 |
> |
new HashSet<Thread>(Arrays.asList(threads))); |
206 |
> |
} |
207 |
> |
|
208 |
> |
enum AwaitMethod { await, awaitTimed, awaitNanos, awaitUntil } |
209 |
> |
|
210 |
> |
/** |
211 |
> |
* Awaits condition using the specified AwaitMethod. |
212 |
> |
*/ |
213 |
> |
void await(ConditionObject c, AwaitMethod awaitMethod) |
214 |
> |
throws InterruptedException { |
215 |
> |
long timeoutMillis = 2 * LONG_DELAY_MS; |
216 |
> |
switch (awaitMethod) { |
217 |
> |
case await: |
218 |
> |
c.await(); |
219 |
> |
break; |
220 |
> |
case awaitTimed: |
221 |
> |
assertTrue(c.await(timeoutMillis, MILLISECONDS)); |
222 |
> |
break; |
223 |
> |
case awaitNanos: |
224 |
> |
long nanosTimeout = MILLISECONDS.toNanos(timeoutMillis); |
225 |
> |
long nanosRemaining = c.awaitNanos(nanosTimeout); |
226 |
> |
assertTrue(nanosRemaining > 0); |
227 |
> |
break; |
228 |
> |
case awaitUntil: |
229 |
> |
assertTrue(c.awaitUntil(delayedDate(timeoutMillis))); |
230 |
> |
break; |
231 |
> |
default: |
232 |
> |
throw new AssertionError(); |
233 |
|
} |
234 |
|
} |
235 |
|
|
236 |
|
/** |
237 |
+ |
* Checks that awaiting the given condition times out (using the |
238 |
+ |
* default timeout duration). |
239 |
+ |
*/ |
240 |
+ |
void assertAwaitTimesOut(ConditionObject c, AwaitMethod awaitMethod) { |
241 |
+ |
long timeoutMillis = timeoutMillis(); |
242 |
+ |
long startTime = System.nanoTime(); |
243 |
+ |
try { |
244 |
+ |
switch (awaitMethod) { |
245 |
+ |
case awaitTimed: |
246 |
+ |
assertFalse(c.await(timeoutMillis, MILLISECONDS)); |
247 |
+ |
break; |
248 |
+ |
case awaitNanos: |
249 |
+ |
long nanosTimeout = MILLISECONDS.toNanos(timeoutMillis); |
250 |
+ |
long nanosRemaining = c.awaitNanos(nanosTimeout); |
251 |
+ |
assertTrue(nanosRemaining <= 0); |
252 |
+ |
break; |
253 |
+ |
case awaitUntil: |
254 |
+ |
assertFalse(c.awaitUntil(delayedDate(timeoutMillis))); |
255 |
+ |
break; |
256 |
+ |
default: |
257 |
+ |
throw new UnsupportedOperationException(); |
258 |
+ |
} |
259 |
+ |
} catch (InterruptedException ie) { threadUnexpectedException(ie); } |
260 |
+ |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
261 |
+ |
} |
262 |
+ |
|
263 |
+ |
/** |
264 |
|
* isHeldExclusively is false upon construction |
265 |
|
*/ |
266 |
|
public void testIsHeldExclusively() { |
267 |
< |
Mutex rl = new Mutex(); |
268 |
< |
assertFalse(rl.isHeldExclusively()); |
267 |
> |
Mutex sync = new Mutex(); |
268 |
> |
assertFalse(sync.isHeldExclusively()); |
269 |
|
} |
270 |
|
|
271 |
|
/** |
272 |
|
* acquiring released sync succeeds |
273 |
|
*/ |
274 |
|
public void testAcquire() { |
275 |
< |
Mutex rl = new Mutex(); |
276 |
< |
rl.acquire(1); |
277 |
< |
assertTrue(rl.isHeldExclusively()); |
278 |
< |
rl.release(1); |
279 |
< |
assertFalse(rl.isHeldExclusively()); |
275 |
> |
Mutex sync = new Mutex(); |
276 |
> |
sync.acquire(); |
277 |
> |
assertTrue(sync.isHeldExclusively()); |
278 |
> |
sync.release(); |
279 |
> |
assertFalse(sync.isHeldExclusively()); |
280 |
|
} |
281 |
|
|
282 |
|
/** |
283 |
< |
* tryAcquire on an released sync succeeds |
283 |
> |
* tryAcquire on a released sync succeeds |
284 |
|
*/ |
285 |
|
public void testTryAcquire() { |
286 |
< |
Mutex rl = new Mutex(); |
287 |
< |
assertTrue(rl.tryAcquire(1)); |
288 |
< |
assertTrue(rl.isHeldExclusively()); |
289 |
< |
rl.release(1); |
286 |
> |
Mutex sync = new Mutex(); |
287 |
> |
assertTrue(sync.tryAcquire()); |
288 |
> |
assertTrue(sync.isHeldExclusively()); |
289 |
> |
sync.release(); |
290 |
> |
assertFalse(sync.isHeldExclusively()); |
291 |
|
} |
292 |
|
|
293 |
|
/** |
294 |
|
* hasQueuedThreads reports whether there are waiting threads |
295 |
|
*/ |
296 |
< |
public void testhasQueuedThreads() throws InterruptedException { |
297 |
< |
final Mutex sync = new Mutex(); |
130 |
< |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
131 |
< |
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
296 |
> |
public void testHasQueuedThreads() { |
297 |
> |
final Mutex sync = new Mutex(); |
298 |
|
assertFalse(sync.hasQueuedThreads()); |
299 |
< |
sync.acquire(1); |
300 |
< |
t1.start(); |
301 |
< |
Thread.sleep(SHORT_DELAY_MS); |
299 |
> |
sync.acquire(); |
300 |
> |
Thread t1 = newStartedThread(new InterruptedSyncRunnable(sync)); |
301 |
> |
waitForQueuedThread(sync, t1); |
302 |
|
assertTrue(sync.hasQueuedThreads()); |
303 |
< |
t2.start(); |
304 |
< |
Thread.sleep(SHORT_DELAY_MS); |
303 |
> |
Thread t2 = newStartedThread(new InterruptibleSyncRunnable(sync)); |
304 |
> |
waitForQueuedThread(sync, t2); |
305 |
|
assertTrue(sync.hasQueuedThreads()); |
306 |
|
t1.interrupt(); |
307 |
< |
Thread.sleep(SHORT_DELAY_MS); |
307 |
> |
awaitTermination(t1); |
308 |
|
assertTrue(sync.hasQueuedThreads()); |
309 |
< |
sync.release(1); |
310 |
< |
Thread.sleep(SHORT_DELAY_MS); |
309 |
> |
sync.release(); |
310 |
> |
awaitTermination(t2); |
311 |
|
assertFalse(sync.hasQueuedThreads()); |
146 |
– |
t1.join(); |
147 |
– |
t2.join(); |
312 |
|
} |
313 |
|
|
314 |
|
/** |
315 |
< |
* isQueued(null) throws NPE |
315 |
> |
* isQueued(null) throws NullPointerException |
316 |
|
*/ |
317 |
|
public void testIsQueuedNPE() { |
318 |
< |
final Mutex sync = new Mutex(); |
318 |
> |
final Mutex sync = new Mutex(); |
319 |
|
try { |
320 |
|
sync.isQueued(null); |
321 |
|
shouldThrow(); |
323 |
|
} |
324 |
|
|
325 |
|
/** |
326 |
< |
* isQueued reports whether a thread is queued. |
326 |
> |
* isQueued reports whether a thread is queued |
327 |
|
*/ |
328 |
< |
public void testIsQueued() throws InterruptedException { |
329 |
< |
final Mutex sync = new Mutex(); |
328 |
> |
public void testIsQueued() { |
329 |
> |
final Mutex sync = new Mutex(); |
330 |
|
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
331 |
|
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
332 |
|
assertFalse(sync.isQueued(t1)); |
333 |
|
assertFalse(sync.isQueued(t2)); |
334 |
< |
sync.acquire(1); |
334 |
> |
sync.acquire(); |
335 |
|
t1.start(); |
336 |
< |
Thread.sleep(SHORT_DELAY_MS); |
336 |
> |
waitForQueuedThread(sync, t1); |
337 |
|
assertTrue(sync.isQueued(t1)); |
338 |
+ |
assertFalse(sync.isQueued(t2)); |
339 |
|
t2.start(); |
340 |
< |
Thread.sleep(SHORT_DELAY_MS); |
340 |
> |
waitForQueuedThread(sync, t2); |
341 |
|
assertTrue(sync.isQueued(t1)); |
342 |
|
assertTrue(sync.isQueued(t2)); |
343 |
|
t1.interrupt(); |
344 |
< |
Thread.sleep(SHORT_DELAY_MS); |
344 |
> |
awaitTermination(t1); |
345 |
|
assertFalse(sync.isQueued(t1)); |
346 |
|
assertTrue(sync.isQueued(t2)); |
347 |
< |
sync.release(1); |
348 |
< |
Thread.sleep(SHORT_DELAY_MS); |
347 |
> |
sync.release(); |
348 |
> |
awaitTermination(t2); |
349 |
|
assertFalse(sync.isQueued(t1)); |
185 |
– |
Thread.sleep(SHORT_DELAY_MS); |
350 |
|
assertFalse(sync.isQueued(t2)); |
187 |
– |
t1.join(); |
188 |
– |
t2.join(); |
351 |
|
} |
352 |
|
|
353 |
|
/** |
354 |
|
* getFirstQueuedThread returns first waiting thread or null if none |
355 |
|
*/ |
356 |
< |
public void testGetFirstQueuedThread() throws InterruptedException { |
357 |
< |
final Mutex sync = new Mutex(); |
196 |
< |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
197 |
< |
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
356 |
> |
public void testGetFirstQueuedThread() { |
357 |
> |
final Mutex sync = new Mutex(); |
358 |
|
assertNull(sync.getFirstQueuedThread()); |
359 |
< |
sync.acquire(1); |
360 |
< |
t1.start(); |
361 |
< |
Thread.sleep(SHORT_DELAY_MS); |
359 |
> |
sync.acquire(); |
360 |
> |
Thread t1 = newStartedThread(new InterruptedSyncRunnable(sync)); |
361 |
> |
waitForQueuedThread(sync, t1); |
362 |
|
assertEquals(t1, sync.getFirstQueuedThread()); |
363 |
< |
t2.start(); |
364 |
< |
Thread.sleep(SHORT_DELAY_MS); |
363 |
> |
Thread t2 = newStartedThread(new InterruptibleSyncRunnable(sync)); |
364 |
> |
waitForQueuedThread(sync, t2); |
365 |
|
assertEquals(t1, sync.getFirstQueuedThread()); |
366 |
|
t1.interrupt(); |
367 |
< |
Thread.sleep(SHORT_DELAY_MS); |
208 |
< |
Thread.sleep(SHORT_DELAY_MS); |
367 |
> |
awaitTermination(t1); |
368 |
|
assertEquals(t2, sync.getFirstQueuedThread()); |
369 |
< |
sync.release(1); |
370 |
< |
Thread.sleep(SHORT_DELAY_MS); |
369 |
> |
sync.release(); |
370 |
> |
awaitTermination(t2); |
371 |
|
assertNull(sync.getFirstQueuedThread()); |
213 |
– |
t1.join(); |
214 |
– |
t2.join(); |
372 |
|
} |
373 |
|
|
217 |
– |
|
374 |
|
/** |
375 |
|
* hasContended reports false if no thread has ever blocked, else true |
376 |
|
*/ |
377 |
< |
public void testHasContended() throws InterruptedException { |
378 |
< |
final Mutex sync = new Mutex(); |
223 |
< |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
224 |
< |
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
377 |
> |
public void testHasContended() { |
378 |
> |
final Mutex sync = new Mutex(); |
379 |
|
assertFalse(sync.hasContended()); |
380 |
< |
sync.acquire(1); |
381 |
< |
t1.start(); |
382 |
< |
Thread.sleep(SHORT_DELAY_MS); |
380 |
> |
sync.acquire(); |
381 |
> |
assertFalse(sync.hasContended()); |
382 |
> |
Thread t1 = newStartedThread(new InterruptedSyncRunnable(sync)); |
383 |
> |
waitForQueuedThread(sync, t1); |
384 |
|
assertTrue(sync.hasContended()); |
385 |
< |
t2.start(); |
386 |
< |
Thread.sleep(SHORT_DELAY_MS); |
385 |
> |
Thread t2 = newStartedThread(new InterruptibleSyncRunnable(sync)); |
386 |
> |
waitForQueuedThread(sync, t2); |
387 |
|
assertTrue(sync.hasContended()); |
388 |
|
t1.interrupt(); |
389 |
< |
Thread.sleep(SHORT_DELAY_MS); |
389 |
> |
awaitTermination(t1); |
390 |
|
assertTrue(sync.hasContended()); |
391 |
< |
sync.release(1); |
392 |
< |
Thread.sleep(SHORT_DELAY_MS); |
391 |
> |
sync.release(); |
392 |
> |
awaitTermination(t2); |
393 |
|
assertTrue(sync.hasContended()); |
239 |
– |
t1.join(); |
240 |
– |
t2.join(); |
394 |
|
} |
395 |
|
|
396 |
|
/** |
397 |
< |
* getQueuedThreads includes waiting threads |
397 |
> |
* getQueuedThreads returns all waiting threads |
398 |
|
*/ |
399 |
< |
public void testGetQueuedThreads() throws InterruptedException { |
400 |
< |
final Mutex sync = new Mutex(); |
399 |
> |
public void testGetQueuedThreads() { |
400 |
> |
final Mutex sync = new Mutex(); |
401 |
|
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
402 |
|
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
403 |
< |
assertTrue(sync.getQueuedThreads().isEmpty()); |
404 |
< |
sync.acquire(1); |
405 |
< |
assertTrue(sync.getQueuedThreads().isEmpty()); |
403 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
404 |
> |
sync.acquire(); |
405 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
406 |
|
t1.start(); |
407 |
< |
Thread.sleep(SHORT_DELAY_MS); |
407 |
> |
waitForQueuedThread(sync, t1); |
408 |
> |
assertHasExclusiveQueuedThreads(sync, t1); |
409 |
|
assertTrue(sync.getQueuedThreads().contains(t1)); |
410 |
+ |
assertFalse(sync.getQueuedThreads().contains(t2)); |
411 |
|
t2.start(); |
412 |
< |
Thread.sleep(SHORT_DELAY_MS); |
412 |
> |
waitForQueuedThread(sync, t2); |
413 |
> |
assertHasExclusiveQueuedThreads(sync, t1, t2); |
414 |
|
assertTrue(sync.getQueuedThreads().contains(t1)); |
415 |
|
assertTrue(sync.getQueuedThreads().contains(t2)); |
416 |
|
t1.interrupt(); |
417 |
< |
Thread.sleep(SHORT_DELAY_MS); |
418 |
< |
assertFalse(sync.getQueuedThreads().contains(t1)); |
419 |
< |
assertTrue(sync.getQueuedThreads().contains(t2)); |
420 |
< |
sync.release(1); |
421 |
< |
Thread.sleep(SHORT_DELAY_MS); |
266 |
< |
assertTrue(sync.getQueuedThreads().isEmpty()); |
267 |
< |
t1.join(); |
268 |
< |
t2.join(); |
417 |
> |
awaitTermination(t1); |
418 |
> |
assertHasExclusiveQueuedThreads(sync, t2); |
419 |
> |
sync.release(); |
420 |
> |
awaitTermination(t2); |
421 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
422 |
|
} |
423 |
|
|
424 |
|
/** |
425 |
< |
* getExclusiveQueuedThreads includes waiting threads |
425 |
> |
* getExclusiveQueuedThreads returns all exclusive waiting threads |
426 |
|
*/ |
427 |
< |
public void testGetExclusiveQueuedThreads() throws InterruptedException { |
428 |
< |
final Mutex sync = new Mutex(); |
427 |
> |
public void testGetExclusiveQueuedThreads() { |
428 |
> |
final Mutex sync = new Mutex(); |
429 |
|
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
430 |
|
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
431 |
< |
assertTrue(sync.getExclusiveQueuedThreads().isEmpty()); |
432 |
< |
sync.acquire(1); |
433 |
< |
assertTrue(sync.getExclusiveQueuedThreads().isEmpty()); |
431 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
432 |
> |
sync.acquire(); |
433 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
434 |
|
t1.start(); |
435 |
< |
Thread.sleep(SHORT_DELAY_MS); |
435 |
> |
waitForQueuedThread(sync, t1); |
436 |
> |
assertHasExclusiveQueuedThreads(sync, t1); |
437 |
|
assertTrue(sync.getExclusiveQueuedThreads().contains(t1)); |
438 |
+ |
assertFalse(sync.getExclusiveQueuedThreads().contains(t2)); |
439 |
|
t2.start(); |
440 |
< |
Thread.sleep(SHORT_DELAY_MS); |
440 |
> |
waitForQueuedThread(sync, t2); |
441 |
> |
assertHasExclusiveQueuedThreads(sync, t1, t2); |
442 |
|
assertTrue(sync.getExclusiveQueuedThreads().contains(t1)); |
443 |
|
assertTrue(sync.getExclusiveQueuedThreads().contains(t2)); |
444 |
|
t1.interrupt(); |
445 |
< |
Thread.sleep(SHORT_DELAY_MS); |
446 |
< |
assertFalse(sync.getExclusiveQueuedThreads().contains(t1)); |
447 |
< |
assertTrue(sync.getExclusiveQueuedThreads().contains(t2)); |
448 |
< |
sync.release(1); |
449 |
< |
Thread.sleep(SHORT_DELAY_MS); |
294 |
< |
assertTrue(sync.getExclusiveQueuedThreads().isEmpty()); |
295 |
< |
t1.join(); |
296 |
< |
t2.join(); |
445 |
> |
awaitTermination(t1); |
446 |
> |
assertHasExclusiveQueuedThreads(sync, t2); |
447 |
> |
sync.release(); |
448 |
> |
awaitTermination(t2); |
449 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
450 |
|
} |
451 |
|
|
452 |
|
/** |
453 |
|
* getSharedQueuedThreads does not include exclusively waiting threads |
454 |
|
*/ |
455 |
< |
public void testGetSharedQueuedThreads() throws InterruptedException { |
456 |
< |
final Mutex sync = new Mutex(); |
304 |
< |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
305 |
< |
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
455 |
> |
public void testGetSharedQueuedThreads_Exclusive() { |
456 |
> |
final Mutex sync = new Mutex(); |
457 |
|
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
458 |
< |
sync.acquire(1); |
458 |
> |
sync.acquire(); |
459 |
|
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
460 |
< |
t1.start(); |
461 |
< |
Thread.sleep(SHORT_DELAY_MS); |
460 |
> |
Thread t1 = newStartedThread(new InterruptedSyncRunnable(sync)); |
461 |
> |
waitForQueuedThread(sync, t1); |
462 |
|
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
463 |
< |
t2.start(); |
464 |
< |
Thread.sleep(SHORT_DELAY_MS); |
463 |
> |
Thread t2 = newStartedThread(new InterruptibleSyncRunnable(sync)); |
464 |
> |
waitForQueuedThread(sync, t2); |
465 |
|
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
466 |
|
t1.interrupt(); |
467 |
< |
Thread.sleep(SHORT_DELAY_MS); |
467 |
> |
awaitTermination(t1); |
468 |
|
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
469 |
< |
sync.release(1); |
470 |
< |
Thread.sleep(SHORT_DELAY_MS); |
469 |
> |
sync.release(); |
470 |
> |
awaitTermination(t2); |
471 |
|
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
321 |
– |
t1.join(); |
322 |
– |
t2.join(); |
472 |
|
} |
473 |
|
|
474 |
|
/** |
475 |
< |
* tryAcquireNanos is interruptible. |
475 |
> |
* getSharedQueuedThreads returns all shared waiting threads |
476 |
> |
*/ |
477 |
> |
public void testGetSharedQueuedThreads_Shared() { |
478 |
> |
final BooleanLatch l = new BooleanLatch(); |
479 |
> |
assertHasSharedQueuedThreads(l, NO_THREADS); |
480 |
> |
Thread t1 = newStartedThread(new CheckedInterruptedRunnable() { |
481 |
> |
public void realRun() throws InterruptedException { |
482 |
> |
l.acquireSharedInterruptibly(0); |
483 |
> |
}}); |
484 |
> |
waitForQueuedThread(l, t1); |
485 |
> |
assertHasSharedQueuedThreads(l, t1); |
486 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
487 |
> |
public void realRun() throws InterruptedException { |
488 |
> |
l.acquireSharedInterruptibly(0); |
489 |
> |
}}); |
490 |
> |
waitForQueuedThread(l, t2); |
491 |
> |
assertHasSharedQueuedThreads(l, t1, t2); |
492 |
> |
t1.interrupt(); |
493 |
> |
awaitTermination(t1); |
494 |
> |
assertHasSharedQueuedThreads(l, t2); |
495 |
> |
assertTrue(l.releaseShared(0)); |
496 |
> |
awaitTermination(t2); |
497 |
> |
assertHasSharedQueuedThreads(l, NO_THREADS); |
498 |
> |
} |
499 |
> |
|
500 |
> |
/** |
501 |
> |
* tryAcquireNanos is interruptible |
502 |
|
*/ |
503 |
< |
public void testInterruptedException2() { |
504 |
< |
final Mutex sync = new Mutex(); |
505 |
< |
sync.acquire(1); |
506 |
< |
Thread t = new Thread(new Runnable() { |
507 |
< |
public void run() { |
508 |
< |
try { |
509 |
< |
sync.tryAcquireNanos(1, MEDIUM_DELAY_MS * 1000 * 1000); |
335 |
< |
threadShouldThrow(); |
336 |
< |
} catch (InterruptedException success) {} |
337 |
< |
} |
338 |
< |
}); |
503 |
> |
public void testTryAcquireNanos_Interruptible() { |
504 |
> |
final Mutex sync = new Mutex(); |
505 |
> |
sync.acquire(); |
506 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
507 |
> |
public void realRun() throws InterruptedException { |
508 |
> |
sync.tryAcquireNanos(MILLISECONDS.toNanos(2 * LONG_DELAY_MS)); |
509 |
> |
}}); |
510 |
|
|
511 |
< |
t.start(); |
511 |
> |
waitForQueuedThread(sync, t); |
512 |
|
t.interrupt(); |
513 |
+ |
awaitTermination(t); |
514 |
|
} |
515 |
|
|
344 |
– |
|
516 |
|
/** |
517 |
< |
* TryAcquire on exclusively held sync fails |
517 |
> |
* tryAcquire on exclusively held sync fails |
518 |
|
*/ |
519 |
< |
public void testTryAcquireWhenSynced() throws InterruptedException { |
520 |
< |
final Mutex sync = new Mutex(); |
521 |
< |
sync.acquire(1); |
522 |
< |
Thread t = new Thread(new Runnable() { |
523 |
< |
public void run() { |
524 |
< |
threadAssertFalse(sync.tryAcquire(1)); |
525 |
< |
} |
526 |
< |
}); |
527 |
< |
|
528 |
< |
t.start(); |
358 |
< |
t.join(); |
359 |
< |
sync.release(1); |
519 |
> |
public void testTryAcquireWhenSynced() { |
520 |
> |
final Mutex sync = new Mutex(); |
521 |
> |
sync.acquire(); |
522 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
523 |
> |
public void realRun() { |
524 |
> |
assertFalse(sync.tryAcquire()); |
525 |
> |
}}); |
526 |
> |
|
527 |
> |
awaitTermination(t); |
528 |
> |
sync.release(); |
529 |
|
} |
530 |
|
|
531 |
|
/** |
532 |
|
* tryAcquireNanos on an exclusively held sync times out |
533 |
|
*/ |
534 |
< |
public void testAcquireNanos_Timeout() throws InterruptedException { |
535 |
< |
final Mutex sync = new Mutex(); |
536 |
< |
sync.acquire(1); |
537 |
< |
Thread t = new Thread(new Runnable() { |
538 |
< |
public void run() { |
539 |
< |
try { |
540 |
< |
threadAssertFalse(sync.tryAcquireNanos(1, 1000 * 1000)); |
541 |
< |
} catch (Exception ex) { |
542 |
< |
threadUnexpectedException(); |
543 |
< |
} |
375 |
< |
} |
376 |
< |
}); |
377 |
< |
|
378 |
< |
t.start(); |
379 |
< |
t.join(); |
380 |
< |
sync.release(1); |
381 |
< |
} |
534 |
> |
public void testAcquireNanos_Timeout() { |
535 |
> |
final Mutex sync = new Mutex(); |
536 |
> |
sync.acquire(); |
537 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
538 |
> |
public void realRun() throws InterruptedException { |
539 |
> |
long startTime = System.nanoTime(); |
540 |
> |
long nanos = MILLISECONDS.toNanos(timeoutMillis()); |
541 |
> |
assertFalse(sync.tryAcquireNanos(nanos)); |
542 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
543 |
> |
}}); |
544 |
|
|
545 |
+ |
awaitTermination(t); |
546 |
+ |
sync.release(); |
547 |
+ |
} |
548 |
|
|
549 |
|
/** |
550 |
|
* getState is true when acquired and false when not |
551 |
|
*/ |
552 |
< |
public void testGetState() throws InterruptedException { |
553 |
< |
final Mutex sync = new Mutex(); |
554 |
< |
sync.acquire(1); |
390 |
< |
assertTrue(sync.isHeldExclusively()); |
391 |
< |
sync.release(1); |
392 |
< |
assertFalse(sync.isHeldExclusively()); |
393 |
< |
Thread t = new Thread(new Runnable() { |
394 |
< |
public void run() { |
395 |
< |
sync.acquire(1); |
396 |
< |
try { |
397 |
< |
Thread.sleep(SMALL_DELAY_MS); |
398 |
< |
} |
399 |
< |
catch (Exception e) { |
400 |
< |
threadUnexpectedException(); |
401 |
< |
} |
402 |
< |
sync.release(1); |
403 |
< |
} |
404 |
< |
}); |
405 |
< |
|
406 |
< |
t.start(); |
407 |
< |
Thread.sleep(SHORT_DELAY_MS); |
552 |
> |
public void testGetState() { |
553 |
> |
final Mutex sync = new Mutex(); |
554 |
> |
sync.acquire(); |
555 |
|
assertTrue(sync.isHeldExclusively()); |
556 |
< |
t.join(); |
556 |
> |
sync.release(); |
557 |
|
assertFalse(sync.isHeldExclusively()); |
411 |
– |
} |
412 |
– |
|
558 |
|
|
559 |
< |
/** |
560 |
< |
* acquireInterruptibly is interruptible. |
561 |
< |
*/ |
562 |
< |
public void testAcquireInterruptibly1() throws InterruptedException { |
563 |
< |
final Mutex sync = new Mutex(); |
564 |
< |
sync.acquire(1); |
565 |
< |
Thread t = new Thread(new InterruptedSyncRunnable(sync)); |
559 |
> |
final BooleanLatch acquired = new BooleanLatch(); |
560 |
> |
final BooleanLatch done = new BooleanLatch(); |
561 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
562 |
> |
public void realRun() throws InterruptedException { |
563 |
> |
sync.acquire(); |
564 |
> |
assertTrue(acquired.releaseShared(0)); |
565 |
> |
done.acquireShared(0); |
566 |
> |
sync.release(); |
567 |
> |
}}); |
568 |
|
|
569 |
< |
t.start(); |
570 |
< |
Thread.sleep(SHORT_DELAY_MS); |
571 |
< |
t.interrupt(); |
572 |
< |
Thread.sleep(SHORT_DELAY_MS); |
573 |
< |
sync.release(1); |
427 |
< |
t.join(); |
569 |
> |
acquired.acquireShared(0); |
570 |
> |
assertTrue(sync.isHeldExclusively()); |
571 |
> |
assertTrue(done.releaseShared(0)); |
572 |
> |
awaitTermination(t); |
573 |
> |
assertFalse(sync.isHeldExclusively()); |
574 |
|
} |
575 |
|
|
576 |
|
/** |
577 |
|
* acquireInterruptibly succeeds when released, else is interruptible |
578 |
|
*/ |
579 |
< |
public void testAcquireInterruptibly2() throws InterruptedException { |
580 |
< |
final Mutex sync = new Mutex(); |
581 |
< |
sync.acquireInterruptibly(1); |
582 |
< |
Thread t = new Thread(new InterruptedSyncRunnable(sync)); |
583 |
< |
t.start(); |
579 |
> |
public void testAcquireInterruptibly() throws InterruptedException { |
580 |
> |
final Mutex sync = new Mutex(); |
581 |
> |
final BooleanLatch threadStarted = new BooleanLatch(); |
582 |
> |
sync.acquireInterruptibly(); |
583 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
584 |
> |
public void realRun() throws InterruptedException { |
585 |
> |
assertTrue(threadStarted.releaseShared(0)); |
586 |
> |
sync.acquireInterruptibly(); |
587 |
> |
}}); |
588 |
> |
|
589 |
> |
threadStarted.acquireShared(0); |
590 |
> |
waitForQueuedThread(sync, t); |
591 |
|
t.interrupt(); |
592 |
+ |
awaitTermination(t); |
593 |
|
assertTrue(sync.isHeldExclusively()); |
440 |
– |
t.join(); |
594 |
|
} |
595 |
|
|
596 |
|
/** |
597 |
|
* owns is true for a condition created by sync else false |
598 |
|
*/ |
599 |
|
public void testOwns() { |
600 |
< |
final Mutex sync = new Mutex(); |
601 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
600 |
> |
final Mutex sync = new Mutex(); |
601 |
> |
final ConditionObject c = sync.newCondition(); |
602 |
|
final Mutex sync2 = new Mutex(); |
603 |
|
assertTrue(sync.owns(c)); |
604 |
|
assertFalse(sync2.owns(c)); |
607 |
|
/** |
608 |
|
* Calling await without holding sync throws IllegalMonitorStateException |
609 |
|
*/ |
610 |
< |
public void testAwait_IllegalMonitor() throws InterruptedException { |
611 |
< |
final Mutex sync = new Mutex(); |
612 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
613 |
< |
try { |
614 |
< |
c.await(); |
615 |
< |
shouldThrow(); |
610 |
> |
public void testAwait_IMSE() { |
611 |
> |
final Mutex sync = new Mutex(); |
612 |
> |
final ConditionObject c = sync.newCondition(); |
613 |
> |
for (AwaitMethod awaitMethod : AwaitMethod.values()) { |
614 |
> |
long startTime = System.nanoTime(); |
615 |
> |
try { |
616 |
> |
await(c, awaitMethod); |
617 |
> |
shouldThrow(); |
618 |
> |
} catch (IllegalMonitorStateException success) { |
619 |
> |
} catch (InterruptedException e) { threadUnexpectedException(e); } |
620 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
621 |
|
} |
464 |
– |
catch (IllegalMonitorStateException success) {} |
622 |
|
} |
623 |
|
|
624 |
|
/** |
625 |
|
* Calling signal without holding sync throws IllegalMonitorStateException |
626 |
|
*/ |
627 |
< |
public void testSignal_IllegalMonitor() { |
628 |
< |
final Mutex sync = new Mutex(); |
629 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
627 |
> |
public void testSignal_IMSE() { |
628 |
> |
final Mutex sync = new Mutex(); |
629 |
> |
final ConditionObject c = sync.newCondition(); |
630 |
|
try { |
631 |
|
c.signal(); |
632 |
|
shouldThrow(); |
633 |
< |
} |
634 |
< |
catch (IllegalMonitorStateException success) {} |
478 |
< |
} |
479 |
< |
|
480 |
< |
/** |
481 |
< |
* awaitNanos without a signal times out |
482 |
< |
*/ |
483 |
< |
public void testAwaitNanos_Timeout() throws InterruptedException { |
484 |
< |
final Mutex sync = new Mutex(); |
485 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
486 |
< |
sync.acquire(1); |
487 |
< |
long t = c.awaitNanos(100); |
488 |
< |
assertTrue(t <= 0); |
489 |
< |
sync.release(1); |
633 |
> |
} catch (IllegalMonitorStateException success) {} |
634 |
> |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
635 |
|
} |
636 |
|
|
637 |
|
/** |
638 |
< |
* Timed await without a signal times out |
638 |
> |
* Calling signalAll without holding sync throws IllegalMonitorStateException |
639 |
|
*/ |
640 |
< |
public void testAwait_Timeout() throws InterruptedException { |
641 |
< |
final Mutex sync = new Mutex(); |
642 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
643 |
< |
sync.acquire(1); |
644 |
< |
assertFalse(c.await(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
645 |
< |
sync.release(1); |
640 |
> |
public void testSignalAll_IMSE() { |
641 |
> |
final Mutex sync = new Mutex(); |
642 |
> |
final ConditionObject c = sync.newCondition(); |
643 |
> |
try { |
644 |
> |
c.signalAll(); |
645 |
> |
shouldThrow(); |
646 |
> |
} catch (IllegalMonitorStateException success) {} |
647 |
|
} |
648 |
|
|
649 |
|
/** |
650 |
< |
* awaitUntil without a signal times out |
650 |
> |
* await/awaitNanos/awaitUntil without a signal times out |
651 |
|
*/ |
652 |
< |
public void testAwaitUntil_Timeout() throws InterruptedException { |
653 |
< |
final Mutex sync = new Mutex(); |
654 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
655 |
< |
sync.acquire(1); |
656 |
< |
java.util.Date d = new java.util.Date(); |
657 |
< |
assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + 10))); |
658 |
< |
sync.release(1); |
652 |
> |
public void testAwaitTimed_Timeout() { testAwait_Timeout(AwaitMethod.awaitTimed); } |
653 |
> |
public void testAwaitNanos_Timeout() { testAwait_Timeout(AwaitMethod.awaitNanos); } |
654 |
> |
public void testAwaitUntil_Timeout() { testAwait_Timeout(AwaitMethod.awaitUntil); } |
655 |
> |
public void testAwait_Timeout(AwaitMethod awaitMethod) { |
656 |
> |
final Mutex sync = new Mutex(); |
657 |
> |
final ConditionObject c = sync.newCondition(); |
658 |
> |
sync.acquire(); |
659 |
> |
assertAwaitTimesOut(c, awaitMethod); |
660 |
> |
sync.release(); |
661 |
|
} |
662 |
|
|
663 |
|
/** |
664 |
< |
* await returns when signalled |
665 |
< |
*/ |
666 |
< |
public void testAwait() throws InterruptedException { |
667 |
< |
final Mutex sync = new Mutex(); |
668 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
669 |
< |
Thread t = new Thread(new Runnable() { |
670 |
< |
public void run() { |
671 |
< |
try { |
672 |
< |
sync.acquire(1); |
673 |
< |
c.await(); |
674 |
< |
sync.release(1); |
675 |
< |
} |
676 |
< |
catch (InterruptedException e) { |
677 |
< |
threadUnexpectedException(); |
678 |
< |
} |
679 |
< |
} |
680 |
< |
}); |
681 |
< |
|
682 |
< |
t.start(); |
683 |
< |
Thread.sleep(SHORT_DELAY_MS); |
684 |
< |
sync.acquire(1); |
664 |
> |
* await/awaitNanos/awaitUntil returns when signalled |
665 |
> |
*/ |
666 |
> |
public void testSignal_await() { testSignal(AwaitMethod.await); } |
667 |
> |
public void testSignal_awaitTimed() { testSignal(AwaitMethod.awaitTimed); } |
668 |
> |
public void testSignal_awaitNanos() { testSignal(AwaitMethod.awaitNanos); } |
669 |
> |
public void testSignal_awaitUntil() { testSignal(AwaitMethod.awaitUntil); } |
670 |
> |
public void testSignal(final AwaitMethod awaitMethod) { |
671 |
> |
final Mutex sync = new Mutex(); |
672 |
> |
final ConditionObject c = sync.newCondition(); |
673 |
> |
final BooleanLatch acquired = new BooleanLatch(); |
674 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
675 |
> |
public void realRun() throws InterruptedException { |
676 |
> |
sync.acquire(); |
677 |
> |
assertTrue(acquired.releaseShared(0)); |
678 |
> |
await(c, awaitMethod); |
679 |
> |
sync.release(); |
680 |
> |
}}); |
681 |
> |
|
682 |
> |
acquired.acquireShared(0); |
683 |
> |
sync.acquire(); |
684 |
> |
assertHasWaitersLocked(sync, c, t); |
685 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
686 |
|
c.signal(); |
687 |
< |
sync.release(1); |
688 |
< |
t.join(SHORT_DELAY_MS); |
689 |
< |
assertFalse(t.isAlive()); |
687 |
> |
assertHasWaitersLocked(sync, c, NO_THREADS); |
688 |
> |
assertHasExclusiveQueuedThreads(sync, t); |
689 |
> |
sync.release(); |
690 |
> |
awaitTermination(t); |
691 |
|
} |
692 |
|
|
543 |
– |
|
544 |
– |
|
693 |
|
/** |
694 |
< |
* hasWaiters throws NPE if null |
694 |
> |
* hasWaiters(null) throws NullPointerException |
695 |
|
*/ |
696 |
|
public void testHasWaitersNPE() { |
697 |
< |
final Mutex sync = new Mutex(); |
697 |
> |
final Mutex sync = new Mutex(); |
698 |
|
try { |
699 |
|
sync.hasWaiters(null); |
700 |
|
shouldThrow(); |
702 |
|
} |
703 |
|
|
704 |
|
/** |
705 |
< |
* getWaitQueueLength throws NPE if null |
705 |
> |
* getWaitQueueLength(null) throws NullPointerException |
706 |
|
*/ |
707 |
|
public void testGetWaitQueueLengthNPE() { |
708 |
< |
final Mutex sync = new Mutex(); |
708 |
> |
final Mutex sync = new Mutex(); |
709 |
|
try { |
710 |
|
sync.getWaitQueueLength(null); |
711 |
|
shouldThrow(); |
712 |
|
} catch (NullPointerException success) {} |
713 |
|
} |
714 |
|
|
567 |
– |
|
715 |
|
/** |
716 |
< |
* getWaitingThreads throws NPE if null |
716 |
> |
* getWaitingThreads(null) throws NullPointerException |
717 |
|
*/ |
718 |
|
public void testGetWaitingThreadsNPE() { |
719 |
< |
final Mutex sync = new Mutex(); |
719 |
> |
final Mutex sync = new Mutex(); |
720 |
|
try { |
721 |
|
sync.getWaitingThreads(null); |
722 |
|
shouldThrow(); |
723 |
|
} catch (NullPointerException success) {} |
724 |
|
} |
725 |
|
|
579 |
– |
|
726 |
|
/** |
727 |
< |
* hasWaiters throws IAE if not owned |
727 |
> |
* hasWaiters throws IllegalArgumentException if not owned |
728 |
|
*/ |
729 |
|
public void testHasWaitersIAE() { |
730 |
< |
final Mutex sync = new Mutex(); |
731 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
732 |
< |
final Mutex sync2 = new Mutex(); |
730 |
> |
final Mutex sync = new Mutex(); |
731 |
> |
final ConditionObject c = sync.newCondition(); |
732 |
> |
final Mutex sync2 = new Mutex(); |
733 |
|
try { |
734 |
|
sync2.hasWaiters(c); |
735 |
|
shouldThrow(); |
736 |
|
} catch (IllegalArgumentException success) {} |
737 |
+ |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
738 |
|
} |
739 |
|
|
740 |
|
/** |
741 |
< |
* hasWaiters throws IMSE if not synced |
741 |
> |
* hasWaiters throws IllegalMonitorStateException if not synced |
742 |
|
*/ |
743 |
|
public void testHasWaitersIMSE() { |
744 |
< |
final Mutex sync = new Mutex(); |
745 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
744 |
> |
final Mutex sync = new Mutex(); |
745 |
> |
final ConditionObject c = sync.newCondition(); |
746 |
|
try { |
747 |
|
sync.hasWaiters(c); |
748 |
|
shouldThrow(); |
749 |
|
} catch (IllegalMonitorStateException success) {} |
750 |
+ |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
751 |
|
} |
752 |
|
|
605 |
– |
|
753 |
|
/** |
754 |
< |
* getWaitQueueLength throws IAE if not owned |
754 |
> |
* getWaitQueueLength throws IllegalArgumentException if not owned |
755 |
|
*/ |
756 |
|
public void testGetWaitQueueLengthIAE() { |
757 |
< |
final Mutex sync = new Mutex(); |
758 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
759 |
< |
final Mutex sync2 = new Mutex(); |
757 |
> |
final Mutex sync = new Mutex(); |
758 |
> |
final ConditionObject c = sync.newCondition(); |
759 |
> |
final Mutex sync2 = new Mutex(); |
760 |
|
try { |
761 |
|
sync2.getWaitQueueLength(c); |
762 |
|
shouldThrow(); |
763 |
|
} catch (IllegalArgumentException success) {} |
764 |
+ |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
765 |
|
} |
766 |
|
|
767 |
|
/** |
768 |
< |
* getWaitQueueLength throws IMSE if not synced |
768 |
> |
* getWaitQueueLength throws IllegalMonitorStateException if not synced |
769 |
|
*/ |
770 |
|
public void testGetWaitQueueLengthIMSE() { |
771 |
< |
final Mutex sync = new Mutex(); |
772 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
771 |
> |
final Mutex sync = new Mutex(); |
772 |
> |
final ConditionObject c = sync.newCondition(); |
773 |
|
try { |
774 |
|
sync.getWaitQueueLength(c); |
775 |
|
shouldThrow(); |
776 |
|
} catch (IllegalMonitorStateException success) {} |
777 |
+ |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
778 |
|
} |
779 |
|
|
631 |
– |
|
780 |
|
/** |
781 |
< |
* getWaitingThreads throws IAE if not owned |
781 |
> |
* getWaitingThreads throws IllegalArgumentException if not owned |
782 |
|
*/ |
783 |
|
public void testGetWaitingThreadsIAE() { |
784 |
< |
final Mutex sync = new Mutex(); |
785 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
786 |
< |
final Mutex sync2 = new Mutex(); |
784 |
> |
final Mutex sync = new Mutex(); |
785 |
> |
final ConditionObject c = sync.newCondition(); |
786 |
> |
final Mutex sync2 = new Mutex(); |
787 |
|
try { |
788 |
|
sync2.getWaitingThreads(c); |
789 |
|
shouldThrow(); |
790 |
|
} catch (IllegalArgumentException success) {} |
791 |
+ |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
792 |
|
} |
793 |
|
|
794 |
|
/** |
795 |
< |
* getWaitingThreads throws IMSE if not synced |
795 |
> |
* getWaitingThreads throws IllegalMonitorStateException if not synced |
796 |
|
*/ |
797 |
|
public void testGetWaitingThreadsIMSE() { |
798 |
< |
final Mutex sync = new Mutex(); |
799 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
798 |
> |
final Mutex sync = new Mutex(); |
799 |
> |
final ConditionObject c = sync.newCondition(); |
800 |
|
try { |
801 |
|
sync.getWaitingThreads(c); |
802 |
|
shouldThrow(); |
803 |
|
} catch (IllegalMonitorStateException success) {} |
804 |
+ |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
805 |
|
} |
806 |
|
|
657 |
– |
|
658 |
– |
|
807 |
|
/** |
808 |
|
* hasWaiters returns true when a thread is waiting, else false |
809 |
|
*/ |
810 |
< |
public void testHasWaiters() throws InterruptedException { |
811 |
< |
final Mutex sync = new Mutex(); |
812 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
813 |
< |
Thread t = new Thread(new Runnable() { |
814 |
< |
public void run() { |
815 |
< |
try { |
816 |
< |
sync.acquire(1); |
817 |
< |
threadAssertFalse(sync.hasWaiters(c)); |
818 |
< |
threadAssertEquals(0, sync.getWaitQueueLength(c)); |
819 |
< |
c.await(); |
820 |
< |
sync.release(1); |
821 |
< |
} |
822 |
< |
catch (InterruptedException e) { |
823 |
< |
threadUnexpectedException(); |
824 |
< |
} |
825 |
< |
} |
826 |
< |
}); |
827 |
< |
|
680 |
< |
t.start(); |
681 |
< |
Thread.sleep(SHORT_DELAY_MS); |
682 |
< |
sync.acquire(1); |
810 |
> |
public void testHasWaiters() { |
811 |
> |
final Mutex sync = new Mutex(); |
812 |
> |
final ConditionObject c = sync.newCondition(); |
813 |
> |
final BooleanLatch acquired = new BooleanLatch(); |
814 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
815 |
> |
public void realRun() throws InterruptedException { |
816 |
> |
sync.acquire(); |
817 |
> |
assertHasWaitersLocked(sync, c, NO_THREADS); |
818 |
> |
assertFalse(sync.hasWaiters(c)); |
819 |
> |
assertTrue(acquired.releaseShared(0)); |
820 |
> |
c.await(); |
821 |
> |
sync.release(); |
822 |
> |
}}); |
823 |
> |
|
824 |
> |
acquired.acquireShared(0); |
825 |
> |
sync.acquire(); |
826 |
> |
assertHasWaitersLocked(sync, c, t); |
827 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
828 |
|
assertTrue(sync.hasWaiters(c)); |
684 |
– |
assertEquals(1, sync.getWaitQueueLength(c)); |
829 |
|
c.signal(); |
830 |
< |
sync.release(1); |
831 |
< |
Thread.sleep(SHORT_DELAY_MS); |
688 |
< |
sync.acquire(1); |
830 |
> |
assertHasWaitersLocked(sync, c, NO_THREADS); |
831 |
> |
assertHasExclusiveQueuedThreads(sync, t); |
832 |
|
assertFalse(sync.hasWaiters(c)); |
833 |
< |
assertEquals(0, sync.getWaitQueueLength(c)); |
834 |
< |
sync.release(1); |
835 |
< |
t.join(SHORT_DELAY_MS); |
836 |
< |
assertFalse(t.isAlive()); |
833 |
> |
sync.release(); |
834 |
> |
|
835 |
> |
awaitTermination(t); |
836 |
> |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
837 |
|
} |
838 |
|
|
839 |
|
/** |
840 |
|
* getWaitQueueLength returns number of waiting threads |
841 |
|
*/ |
842 |
< |
public void testGetWaitQueueLength() throws InterruptedException { |
843 |
< |
final Mutex sync = new Mutex(); |
844 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
845 |
< |
Thread t1 = new Thread(new Runnable() { |
846 |
< |
public void run() { |
847 |
< |
try { |
848 |
< |
sync.acquire(1); |
849 |
< |
threadAssertFalse(sync.hasWaiters(c)); |
850 |
< |
threadAssertEquals(0, sync.getWaitQueueLength(c)); |
851 |
< |
c.await(); |
852 |
< |
sync.release(1); |
853 |
< |
} |
854 |
< |
catch (InterruptedException e) { |
855 |
< |
threadUnexpectedException(); |
856 |
< |
} |
857 |
< |
} |
858 |
< |
}); |
859 |
< |
|
860 |
< |
Thread t2 = new Thread(new Runnable() { |
718 |
< |
public void run() { |
719 |
< |
try { |
720 |
< |
sync.acquire(1); |
721 |
< |
threadAssertTrue(sync.hasWaiters(c)); |
722 |
< |
threadAssertEquals(1, sync.getWaitQueueLength(c)); |
723 |
< |
c.await(); |
724 |
< |
sync.release(1); |
725 |
< |
} |
726 |
< |
catch (InterruptedException e) { |
727 |
< |
threadUnexpectedException(); |
728 |
< |
} |
729 |
< |
} |
730 |
< |
}); |
842 |
> |
public void testGetWaitQueueLength() { |
843 |
> |
final Mutex sync = new Mutex(); |
844 |
> |
final ConditionObject c = sync.newCondition(); |
845 |
> |
final BooleanLatch acquired1 = new BooleanLatch(); |
846 |
> |
final BooleanLatch acquired2 = new BooleanLatch(); |
847 |
> |
final Thread t1 = newStartedThread(new CheckedRunnable() { |
848 |
> |
public void realRun() throws InterruptedException { |
849 |
> |
sync.acquire(); |
850 |
> |
assertHasWaitersLocked(sync, c, NO_THREADS); |
851 |
> |
assertEquals(0, sync.getWaitQueueLength(c)); |
852 |
> |
assertTrue(acquired1.releaseShared(0)); |
853 |
> |
c.await(); |
854 |
> |
sync.release(); |
855 |
> |
}}); |
856 |
> |
acquired1.acquireShared(0); |
857 |
> |
sync.acquire(); |
858 |
> |
assertHasWaitersLocked(sync, c, t1); |
859 |
> |
assertEquals(1, sync.getWaitQueueLength(c)); |
860 |
> |
sync.release(); |
861 |
|
|
862 |
< |
t1.start(); |
863 |
< |
Thread.sleep(SHORT_DELAY_MS); |
864 |
< |
t2.start(); |
865 |
< |
Thread.sleep(SHORT_DELAY_MS); |
866 |
< |
sync.acquire(1); |
867 |
< |
assertTrue(sync.hasWaiters(c)); |
862 |
> |
final Thread t2 = newStartedThread(new CheckedRunnable() { |
863 |
> |
public void realRun() throws InterruptedException { |
864 |
> |
sync.acquire(); |
865 |
> |
assertHasWaitersLocked(sync, c, t1); |
866 |
> |
assertEquals(1, sync.getWaitQueueLength(c)); |
867 |
> |
assertTrue(acquired2.releaseShared(0)); |
868 |
> |
c.await(); |
869 |
> |
sync.release(); |
870 |
> |
}}); |
871 |
> |
acquired2.acquireShared(0); |
872 |
> |
sync.acquire(); |
873 |
> |
assertHasWaitersLocked(sync, c, t1, t2); |
874 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
875 |
|
assertEquals(2, sync.getWaitQueueLength(c)); |
876 |
|
c.signalAll(); |
877 |
< |
sync.release(1); |
878 |
< |
Thread.sleep(SHORT_DELAY_MS); |
742 |
< |
sync.acquire(1); |
743 |
< |
assertFalse(sync.hasWaiters(c)); |
877 |
> |
assertHasWaitersLocked(sync, c, NO_THREADS); |
878 |
> |
assertHasExclusiveQueuedThreads(sync, t1, t2); |
879 |
|
assertEquals(0, sync.getWaitQueueLength(c)); |
880 |
< |
sync.release(1); |
881 |
< |
t1.join(SHORT_DELAY_MS); |
882 |
< |
t2.join(SHORT_DELAY_MS); |
883 |
< |
assertFalse(t1.isAlive()); |
884 |
< |
assertFalse(t2.isAlive()); |
880 |
> |
sync.release(); |
881 |
> |
|
882 |
> |
awaitTermination(t1); |
883 |
> |
awaitTermination(t2); |
884 |
> |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
885 |
|
} |
886 |
|
|
887 |
|
/** |
888 |
|
* getWaitingThreads returns only and all waiting threads |
889 |
|
*/ |
890 |
< |
public void testGetWaitingThreads() throws InterruptedException { |
891 |
< |
final Mutex sync = new Mutex(); |
892 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
893 |
< |
Thread t1 = new Thread(new Runnable() { |
894 |
< |
public void run() { |
895 |
< |
try { |
896 |
< |
sync.acquire(1); |
897 |
< |
threadAssertTrue(sync.getWaitingThreads(c).isEmpty()); |
898 |
< |
c.await(); |
899 |
< |
sync.release(1); |
900 |
< |
} |
901 |
< |
catch (InterruptedException e) { |
902 |
< |
threadUnexpectedException(); |
903 |
< |
} |
904 |
< |
} |
905 |
< |
}); |
906 |
< |
|
907 |
< |
Thread t2 = new Thread(new Runnable() { |
908 |
< |
public void run() { |
909 |
< |
try { |
910 |
< |
sync.acquire(1); |
911 |
< |
threadAssertFalse(sync.getWaitingThreads(c).isEmpty()); |
912 |
< |
c.await(); |
913 |
< |
sync.release(1); |
914 |
< |
} |
915 |
< |
catch (InterruptedException e) { |
916 |
< |
threadUnexpectedException(); |
917 |
< |
} |
918 |
< |
} |
919 |
< |
}); |
920 |
< |
|
786 |
< |
sync.acquire(1); |
890 |
> |
public void testGetWaitingThreads() { |
891 |
> |
final Mutex sync = new Mutex(); |
892 |
> |
final ConditionObject c = sync.newCondition(); |
893 |
> |
final BooleanLatch acquired1 = new BooleanLatch(); |
894 |
> |
final BooleanLatch acquired2 = new BooleanLatch(); |
895 |
> |
final Thread t1 = new Thread(new CheckedRunnable() { |
896 |
> |
public void realRun() throws InterruptedException { |
897 |
> |
sync.acquire(); |
898 |
> |
assertHasWaitersLocked(sync, c, NO_THREADS); |
899 |
> |
assertTrue(sync.getWaitingThreads(c).isEmpty()); |
900 |
> |
assertTrue(acquired1.releaseShared(0)); |
901 |
> |
c.await(); |
902 |
> |
sync.release(); |
903 |
> |
}}); |
904 |
> |
|
905 |
> |
final Thread t2 = new Thread(new CheckedRunnable() { |
906 |
> |
public void realRun() throws InterruptedException { |
907 |
> |
sync.acquire(); |
908 |
> |
assertHasWaitersLocked(sync, c, t1); |
909 |
> |
assertTrue(sync.getWaitingThreads(c).contains(t1)); |
910 |
> |
assertFalse(sync.getWaitingThreads(c).isEmpty()); |
911 |
> |
assertEquals(1, sync.getWaitingThreads(c).size()); |
912 |
> |
assertTrue(acquired2.releaseShared(0)); |
913 |
> |
c.await(); |
914 |
> |
sync.release(); |
915 |
> |
}}); |
916 |
> |
|
917 |
> |
sync.acquire(); |
918 |
> |
assertHasWaitersLocked(sync, c, NO_THREADS); |
919 |
> |
assertFalse(sync.getWaitingThreads(c).contains(t1)); |
920 |
> |
assertFalse(sync.getWaitingThreads(c).contains(t2)); |
921 |
|
assertTrue(sync.getWaitingThreads(c).isEmpty()); |
922 |
< |
sync.release(1); |
922 |
> |
assertEquals(0, sync.getWaitingThreads(c).size()); |
923 |
> |
sync.release(); |
924 |
> |
|
925 |
|
t1.start(); |
926 |
< |
Thread.sleep(SHORT_DELAY_MS); |
926 |
> |
acquired1.acquireShared(0); |
927 |
> |
sync.acquire(); |
928 |
> |
assertHasWaitersLocked(sync, c, t1); |
929 |
> |
assertTrue(sync.getWaitingThreads(c).contains(t1)); |
930 |
> |
assertFalse(sync.getWaitingThreads(c).contains(t2)); |
931 |
> |
assertFalse(sync.getWaitingThreads(c).isEmpty()); |
932 |
> |
assertEquals(1, sync.getWaitingThreads(c).size()); |
933 |
> |
sync.release(); |
934 |
> |
|
935 |
|
t2.start(); |
936 |
< |
Thread.sleep(SHORT_DELAY_MS); |
937 |
< |
sync.acquire(1); |
938 |
< |
assertTrue(sync.hasWaiters(c)); |
936 |
> |
acquired2.acquireShared(0); |
937 |
> |
sync.acquire(); |
938 |
> |
assertHasWaitersLocked(sync, c, t1, t2); |
939 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
940 |
|
assertTrue(sync.getWaitingThreads(c).contains(t1)); |
941 |
|
assertTrue(sync.getWaitingThreads(c).contains(t2)); |
942 |
+ |
assertFalse(sync.getWaitingThreads(c).isEmpty()); |
943 |
+ |
assertEquals(2, sync.getWaitingThreads(c).size()); |
944 |
|
c.signalAll(); |
945 |
< |
sync.release(1); |
946 |
< |
Thread.sleep(SHORT_DELAY_MS); |
947 |
< |
sync.acquire(1); |
948 |
< |
assertFalse(sync.hasWaiters(c)); |
945 |
> |
assertHasWaitersLocked(sync, c, NO_THREADS); |
946 |
> |
assertHasExclusiveQueuedThreads(sync, t1, t2); |
947 |
> |
assertFalse(sync.getWaitingThreads(c).contains(t1)); |
948 |
> |
assertFalse(sync.getWaitingThreads(c).contains(t2)); |
949 |
|
assertTrue(sync.getWaitingThreads(c).isEmpty()); |
950 |
< |
sync.release(1); |
951 |
< |
t1.join(SHORT_DELAY_MS); |
805 |
< |
t2.join(SHORT_DELAY_MS); |
806 |
< |
assertFalse(t1.isAlive()); |
807 |
< |
assertFalse(t2.isAlive()); |
808 |
< |
} |
809 |
< |
|
950 |
> |
assertEquals(0, sync.getWaitingThreads(c).size()); |
951 |
> |
sync.release(); |
952 |
|
|
953 |
< |
|
954 |
< |
/** |
955 |
< |
* awaitUninterruptibly doesn't abort on interrupt |
814 |
< |
*/ |
815 |
< |
public void testAwaitUninterruptibly() throws InterruptedException { |
816 |
< |
final Mutex sync = new Mutex(); |
817 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
818 |
< |
Thread t = new Thread(new Runnable() { |
819 |
< |
public void run() { |
820 |
< |
sync.acquire(1); |
821 |
< |
c.awaitUninterruptibly(); |
822 |
< |
sync.release(1); |
823 |
< |
} |
824 |
< |
}); |
825 |
< |
|
826 |
< |
t.start(); |
827 |
< |
Thread.sleep(SHORT_DELAY_MS); |
828 |
< |
t.interrupt(); |
829 |
< |
sync.acquire(1); |
830 |
< |
c.signal(); |
831 |
< |
sync.release(1); |
832 |
< |
t.join(SHORT_DELAY_MS); |
833 |
< |
assertFalse(t.isAlive()); |
953 |
> |
awaitTermination(t1); |
954 |
> |
awaitTermination(t2); |
955 |
> |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
956 |
|
} |
957 |
|
|
958 |
|
/** |
959 |
< |
* await is interruptible |
960 |
< |
*/ |
961 |
< |
public void testAwait_Interrupt() throws InterruptedException { |
962 |
< |
final Mutex sync = new Mutex(); |
963 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
964 |
< |
Thread t = new Thread(new Runnable() { |
965 |
< |
public void run() { |
966 |
< |
try { |
967 |
< |
sync.acquire(1); |
968 |
< |
c.await(); |
969 |
< |
sync.release(1); |
970 |
< |
threadShouldThrow(); |
971 |
< |
} |
972 |
< |
catch (InterruptedException success) { |
973 |
< |
} |
974 |
< |
} |
975 |
< |
}); |
976 |
< |
|
977 |
< |
t.start(); |
978 |
< |
Thread.sleep(SHORT_DELAY_MS); |
857 |
< |
t.interrupt(); |
858 |
< |
t.join(SHORT_DELAY_MS); |
859 |
< |
assertFalse(t.isAlive()); |
860 |
< |
} |
861 |
< |
|
862 |
< |
/** |
863 |
< |
* awaitNanos is interruptible |
864 |
< |
*/ |
865 |
< |
public void testAwaitNanos_Interrupt() throws InterruptedException { |
866 |
< |
final Mutex sync = new Mutex(); |
867 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
868 |
< |
Thread t = new Thread(new Runnable() { |
869 |
< |
public void run() { |
870 |
< |
try { |
871 |
< |
sync.acquire(1); |
872 |
< |
c.awaitNanos(1000 * 1000 * 1000); // 1 sec |
873 |
< |
sync.release(1); |
874 |
< |
threadShouldThrow(); |
875 |
< |
} |
876 |
< |
catch (InterruptedException success) { |
877 |
< |
} |
878 |
< |
} |
879 |
< |
}); |
880 |
< |
|
881 |
< |
t.start(); |
882 |
< |
Thread.sleep(SHORT_DELAY_MS); |
959 |
> |
* awaitUninterruptibly is uninterruptible |
960 |
> |
*/ |
961 |
> |
public void testAwaitUninterruptibly() { |
962 |
> |
final Mutex sync = new Mutex(); |
963 |
> |
final ConditionObject c = sync.newCondition(); |
964 |
> |
final BooleanLatch pleaseInterrupt = new BooleanLatch(); |
965 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
966 |
> |
public void realRun() { |
967 |
> |
sync.acquire(); |
968 |
> |
assertTrue(pleaseInterrupt.releaseShared(0)); |
969 |
> |
c.awaitUninterruptibly(); |
970 |
> |
assertTrue(Thread.interrupted()); |
971 |
> |
assertHasWaitersLocked(sync, c, NO_THREADS); |
972 |
> |
sync.release(); |
973 |
> |
}}); |
974 |
> |
|
975 |
> |
pleaseInterrupt.acquireShared(0); |
976 |
> |
sync.acquire(); |
977 |
> |
assertHasWaitersLocked(sync, c, t); |
978 |
> |
sync.release(); |
979 |
|
t.interrupt(); |
980 |
< |
t.join(SHORT_DELAY_MS); |
981 |
< |
assertFalse(t.isAlive()); |
980 |
> |
assertHasWaitersUnlocked(sync, c, t); |
981 |
> |
assertThreadStaysAlive(t); |
982 |
> |
sync.acquire(); |
983 |
> |
assertHasWaitersLocked(sync, c, t); |
984 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
985 |
> |
c.signal(); |
986 |
> |
assertHasWaitersLocked(sync, c, NO_THREADS); |
987 |
> |
assertHasExclusiveQueuedThreads(sync, t); |
988 |
> |
sync.release(); |
989 |
> |
awaitTermination(t); |
990 |
|
} |
991 |
|
|
992 |
|
/** |
993 |
< |
* awaitUntil is interruptible |
994 |
< |
*/ |
995 |
< |
public void testAwaitUntil_Interrupt() throws InterruptedException { |
996 |
< |
final Mutex sync = new Mutex(); |
997 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
998 |
< |
Thread t = new Thread(new Runnable() { |
999 |
< |
public void run() { |
1000 |
< |
try { |
1001 |
< |
sync.acquire(1); |
1002 |
< |
java.util.Date d = new java.util.Date(); |
1003 |
< |
c.awaitUntil(new java.util.Date(d.getTime() + 10000)); |
1004 |
< |
sync.release(1); |
1005 |
< |
threadShouldThrow(); |
1006 |
< |
} |
1007 |
< |
catch (InterruptedException success) { |
1008 |
< |
} |
905 |
< |
} |
906 |
< |
}); |
993 |
> |
* await/awaitNanos/awaitUntil is interruptible |
994 |
> |
*/ |
995 |
> |
public void testInterruptible_await() { testInterruptible(AwaitMethod.await); } |
996 |
> |
public void testInterruptible_awaitTimed() { testInterruptible(AwaitMethod.awaitTimed); } |
997 |
> |
public void testInterruptible_awaitNanos() { testInterruptible(AwaitMethod.awaitNanos); } |
998 |
> |
public void testInterruptible_awaitUntil() { testInterruptible(AwaitMethod.awaitUntil); } |
999 |
> |
public void testInterruptible(final AwaitMethod awaitMethod) { |
1000 |
> |
final Mutex sync = new Mutex(); |
1001 |
> |
final ConditionObject c = sync.newCondition(); |
1002 |
> |
final BooleanLatch pleaseInterrupt = new BooleanLatch(); |
1003 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
1004 |
> |
public void realRun() throws InterruptedException { |
1005 |
> |
sync.acquire(); |
1006 |
> |
assertTrue(pleaseInterrupt.releaseShared(0)); |
1007 |
> |
await(c, awaitMethod); |
1008 |
> |
}}); |
1009 |
|
|
1010 |
< |
t.start(); |
909 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1010 |
> |
pleaseInterrupt.acquireShared(0); |
1011 |
|
t.interrupt(); |
1012 |
< |
t.join(SHORT_DELAY_MS); |
912 |
< |
assertFalse(t.isAlive()); |
1012 |
> |
awaitTermination(t); |
1013 |
|
} |
1014 |
|
|
1015 |
|
/** |
1016 |
|
* signalAll wakes up all threads |
1017 |
|
*/ |
1018 |
< |
public void testSignalAll() throws InterruptedException { |
1019 |
< |
final Mutex sync = new Mutex(); |
1020 |
< |
final AbstractQueuedSynchronizer.ConditionObject c = sync.newCondition(); |
1021 |
< |
Thread t1 = new Thread(new Runnable() { |
1022 |
< |
public void run() { |
1023 |
< |
try { |
1024 |
< |
sync.acquire(1); |
1025 |
< |
c.await(); |
1026 |
< |
sync.release(1); |
1027 |
< |
} |
1028 |
< |
catch (InterruptedException e) { |
1029 |
< |
threadUnexpectedException(); |
1030 |
< |
} |
1031 |
< |
} |
1032 |
< |
}); |
1033 |
< |
|
1034 |
< |
Thread t2 = new Thread(new Runnable() { |
1035 |
< |
public void run() { |
1036 |
< |
try { |
1037 |
< |
sync.acquire(1); |
1038 |
< |
c.await(); |
1039 |
< |
sync.release(1); |
1040 |
< |
} |
1041 |
< |
catch (InterruptedException e) { |
1042 |
< |
threadUnexpectedException(); |
1043 |
< |
} |
1044 |
< |
} |
1045 |
< |
}); |
1046 |
< |
|
1047 |
< |
t1.start(); |
948 |
< |
t2.start(); |
949 |
< |
Thread.sleep(SHORT_DELAY_MS); |
950 |
< |
sync.acquire(1); |
1018 |
> |
public void testSignalAll_await() { testSignalAll(AwaitMethod.await); } |
1019 |
> |
public void testSignalAll_awaitTimed() { testSignalAll(AwaitMethod.awaitTimed); } |
1020 |
> |
public void testSignalAll_awaitNanos() { testSignalAll(AwaitMethod.awaitNanos); } |
1021 |
> |
public void testSignalAll_awaitUntil() { testSignalAll(AwaitMethod.awaitUntil); } |
1022 |
> |
public void testSignalAll(final AwaitMethod awaitMethod) { |
1023 |
> |
final Mutex sync = new Mutex(); |
1024 |
> |
final ConditionObject c = sync.newCondition(); |
1025 |
> |
final BooleanLatch acquired1 = new BooleanLatch(); |
1026 |
> |
final BooleanLatch acquired2 = new BooleanLatch(); |
1027 |
> |
Thread t1 = newStartedThread(new CheckedRunnable() { |
1028 |
> |
public void realRun() throws InterruptedException { |
1029 |
> |
sync.acquire(); |
1030 |
> |
acquired1.releaseShared(0); |
1031 |
> |
await(c, awaitMethod); |
1032 |
> |
sync.release(); |
1033 |
> |
}}); |
1034 |
> |
|
1035 |
> |
Thread t2 = newStartedThread(new CheckedRunnable() { |
1036 |
> |
public void realRun() throws InterruptedException { |
1037 |
> |
sync.acquire(); |
1038 |
> |
acquired2.releaseShared(0); |
1039 |
> |
await(c, awaitMethod); |
1040 |
> |
sync.release(); |
1041 |
> |
}}); |
1042 |
> |
|
1043 |
> |
acquired1.acquireShared(0); |
1044 |
> |
acquired2.acquireShared(0); |
1045 |
> |
sync.acquire(); |
1046 |
> |
assertHasWaitersLocked(sync, c, t1, t2); |
1047 |
> |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
1048 |
|
c.signalAll(); |
1049 |
< |
sync.release(1); |
1050 |
< |
t1.join(SHORT_DELAY_MS); |
1051 |
< |
t2.join(SHORT_DELAY_MS); |
1052 |
< |
assertFalse(t1.isAlive()); |
1053 |
< |
assertFalse(t2.isAlive()); |
1049 |
> |
assertHasWaitersLocked(sync, c, NO_THREADS); |
1050 |
> |
assertHasExclusiveQueuedThreads(sync, t1, t2); |
1051 |
> |
sync.release(); |
1052 |
> |
awaitTermination(t1); |
1053 |
> |
awaitTermination(t2); |
1054 |
|
} |
1055 |
|
|
959 |
– |
|
1056 |
|
/** |
1057 |
|
* toString indicates current state |
1058 |
|
*/ |
1059 |
|
public void testToString() { |
1060 |
|
Mutex sync = new Mutex(); |
1061 |
< |
String us = sync.toString(); |
1062 |
< |
assertTrue(us.indexOf("State = 0") >= 0); |
1063 |
< |
sync.acquire(1); |
968 |
< |
String ls = sync.toString(); |
969 |
< |
assertTrue(ls.indexOf("State = 1") >= 0); |
1061 |
> |
assertTrue(sync.toString().contains("State = " + Mutex.UNLOCKED)); |
1062 |
> |
sync.acquire(); |
1063 |
> |
assertTrue(sync.toString().contains("State = " + Mutex.LOCKED)); |
1064 |
|
} |
1065 |
|
|
1066 |
|
/** |
1067 |
< |
* A serialized AQS deserializes with current state |
1068 |
< |
*/ |
1069 |
< |
public void testSerialization() throws Exception { |
1070 |
< |
Mutex l = new Mutex(); |
1071 |
< |
l.acquire(1); |
1072 |
< |
assertTrue(l.isHeldExclusively()); |
1073 |
< |
|
1074 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
1075 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
982 |
< |
out.writeObject(l); |
983 |
< |
out.close(); |
984 |
< |
|
985 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
986 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
987 |
< |
Mutex r = (Mutex) in.readObject(); |
988 |
< |
assertTrue(r.isHeldExclusively()); |
989 |
< |
} |
1067 |
> |
* A serialized AQS deserializes with current state, but no queued threads |
1068 |
> |
*/ |
1069 |
> |
public void testSerialization() { |
1070 |
> |
Mutex sync = new Mutex(); |
1071 |
> |
assertFalse(serialClone(sync).isHeldExclusively()); |
1072 |
> |
sync.acquire(); |
1073 |
> |
Thread t = newStartedThread(new InterruptedSyncRunnable(sync)); |
1074 |
> |
waitForQueuedThread(sync, t); |
1075 |
> |
assertTrue(sync.isHeldExclusively()); |
1076 |
|
|
1077 |
+ |
Mutex clone = serialClone(sync); |
1078 |
+ |
assertTrue(clone.isHeldExclusively()); |
1079 |
+ |
assertHasExclusiveQueuedThreads(sync, t); |
1080 |
+ |
assertHasExclusiveQueuedThreads(clone, NO_THREADS); |
1081 |
+ |
t.interrupt(); |
1082 |
+ |
awaitTermination(t); |
1083 |
+ |
sync.release(); |
1084 |
+ |
assertFalse(sync.isHeldExclusively()); |
1085 |
+ |
assertTrue(clone.isHeldExclusively()); |
1086 |
+ |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
1087 |
+ |
assertHasExclusiveQueuedThreads(clone, NO_THREADS); |
1088 |
+ |
} |
1089 |
|
|
1090 |
|
/** |
1091 |
|
* tryReleaseShared setting state changes getState |
1092 |
|
*/ |
1093 |
|
public void testGetStateWithReleaseShared() { |
1094 |
< |
final BooleanLatch l = new BooleanLatch(); |
1095 |
< |
assertFalse(l.isSignalled()); |
1096 |
< |
l.releaseShared(0); |
1097 |
< |
assertTrue(l.isSignalled()); |
1094 |
> |
final BooleanLatch l = new BooleanLatch(); |
1095 |
> |
assertFalse(l.isSignalled()); |
1096 |
> |
assertTrue(l.releaseShared(0)); |
1097 |
> |
assertTrue(l.isSignalled()); |
1098 |
|
} |
1099 |
|
|
1100 |
|
/** |
1101 |
|
* releaseShared has no effect when already signalled |
1102 |
|
*/ |
1103 |
|
public void testReleaseShared() { |
1104 |
< |
final BooleanLatch l = new BooleanLatch(); |
1105 |
< |
assertFalse(l.isSignalled()); |
1106 |
< |
l.releaseShared(0); |
1107 |
< |
assertTrue(l.isSignalled()); |
1108 |
< |
l.releaseShared(0); |
1109 |
< |
assertTrue(l.isSignalled()); |
1104 |
> |
final BooleanLatch l = new BooleanLatch(); |
1105 |
> |
assertFalse(l.isSignalled()); |
1106 |
> |
assertTrue(l.releaseShared(0)); |
1107 |
> |
assertTrue(l.isSignalled()); |
1108 |
> |
assertTrue(l.releaseShared(0)); |
1109 |
> |
assertTrue(l.isSignalled()); |
1110 |
|
} |
1111 |
|
|
1112 |
|
/** |
1113 |
|
* acquireSharedInterruptibly returns after release, but not before |
1114 |
|
*/ |
1115 |
< |
public void testAcquireSharedInterruptibly() throws InterruptedException { |
1116 |
< |
final BooleanLatch l = new BooleanLatch(); |
1115 |
> |
public void testAcquireSharedInterruptibly() { |
1116 |
> |
final BooleanLatch l = new BooleanLatch(); |
1117 |
|
|
1118 |
< |
Thread t = new Thread(new Runnable() { |
1119 |
< |
public void run() { |
1120 |
< |
try { |
1121 |
< |
threadAssertFalse(l.isSignalled()); |
1122 |
< |
l.acquireSharedInterruptibly(0); |
1123 |
< |
threadAssertTrue(l.isSignalled()); |
1124 |
< |
} catch (InterruptedException e) { |
1125 |
< |
threadUnexpectedException(); |
1028 |
< |
} |
1029 |
< |
} |
1030 |
< |
}); |
1118 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
1119 |
> |
public void realRun() throws InterruptedException { |
1120 |
> |
assertFalse(l.isSignalled()); |
1121 |
> |
l.acquireSharedInterruptibly(0); |
1122 |
> |
assertTrue(l.isSignalled()); |
1123 |
> |
l.acquireSharedInterruptibly(0); |
1124 |
> |
assertTrue(l.isSignalled()); |
1125 |
> |
}}); |
1126 |
|
|
1127 |
< |
t.start(); |
1127 |
> |
waitForQueuedThread(l, t); |
1128 |
|
assertFalse(l.isSignalled()); |
1129 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1130 |
< |
l.releaseShared(0); |
1129 |
> |
assertThreadStaysAlive(t); |
1130 |
> |
assertHasSharedQueuedThreads(l, t); |
1131 |
> |
assertTrue(l.releaseShared(0)); |
1132 |
|
assertTrue(l.isSignalled()); |
1133 |
< |
t.join(); |
1133 |
> |
awaitTermination(t); |
1134 |
|
} |
1135 |
|
|
1040 |
– |
|
1136 |
|
/** |
1137 |
< |
* acquireSharedTimed returns after release |
1137 |
> |
* tryAcquireSharedNanos returns after release, but not before |
1138 |
|
*/ |
1139 |
< |
public void testAsquireSharedTimed() throws InterruptedException { |
1140 |
< |
final BooleanLatch l = new BooleanLatch(); |
1046 |
< |
|
1047 |
< |
Thread t = new Thread(new Runnable() { |
1048 |
< |
public void run() { |
1049 |
< |
try { |
1050 |
< |
threadAssertFalse(l.isSignalled()); |
1051 |
< |
threadAssertTrue(l.tryAcquireSharedNanos(0, MEDIUM_DELAY_MS* 1000 * 1000)); |
1052 |
< |
threadAssertTrue(l.isSignalled()); |
1139 |
> |
public void testTryAcquireSharedNanos() { |
1140 |
> |
final BooleanLatch l = new BooleanLatch(); |
1141 |
|
|
1142 |
< |
} catch (InterruptedException e) { |
1143 |
< |
threadUnexpectedException(); |
1144 |
< |
} |
1145 |
< |
} |
1146 |
< |
}); |
1142 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
1143 |
> |
public void realRun() throws InterruptedException { |
1144 |
> |
assertFalse(l.isSignalled()); |
1145 |
> |
long nanos = MILLISECONDS.toNanos(2 * LONG_DELAY_MS); |
1146 |
> |
assertTrue(l.tryAcquireSharedNanos(0, nanos)); |
1147 |
> |
assertTrue(l.isSignalled()); |
1148 |
> |
assertTrue(l.tryAcquireSharedNanos(0, nanos)); |
1149 |
> |
assertTrue(l.isSignalled()); |
1150 |
> |
}}); |
1151 |
|
|
1152 |
< |
t.start(); |
1152 |
> |
waitForQueuedThread(l, t); |
1153 |
|
assertFalse(l.isSignalled()); |
1154 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1155 |
< |
l.releaseShared(0); |
1154 |
> |
assertThreadStaysAlive(t); |
1155 |
> |
assertTrue(l.releaseShared(0)); |
1156 |
|
assertTrue(l.isSignalled()); |
1157 |
< |
t.join(); |
1157 |
> |
awaitTermination(t); |
1158 |
|
} |
1159 |
|
|
1160 |
|
/** |
1161 |
< |
* acquireSharedInterruptibly throws IE if interrupted before released |
1161 |
> |
* acquireSharedInterruptibly is interruptible |
1162 |
|
*/ |
1163 |
< |
public void testAcquireSharedInterruptibly_InterruptedException() throws InterruptedException { |
1163 |
> |
public void testAcquireSharedInterruptibly_Interruptible() { |
1164 |
|
final BooleanLatch l = new BooleanLatch(); |
1165 |
< |
Thread t = new Thread(new Runnable() { |
1166 |
< |
public void run() { |
1167 |
< |
try { |
1168 |
< |
threadAssertFalse(l.isSignalled()); |
1169 |
< |
l.acquireSharedInterruptibly(0); |
1170 |
< |
threadShouldThrow(); |
1171 |
< |
} catch (InterruptedException success) {} |
1080 |
< |
} |
1081 |
< |
}); |
1082 |
< |
t.start(); |
1165 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
1166 |
> |
public void realRun() throws InterruptedException { |
1167 |
> |
assertFalse(l.isSignalled()); |
1168 |
> |
l.acquireSharedInterruptibly(0); |
1169 |
> |
}}); |
1170 |
> |
|
1171 |
> |
waitForQueuedThread(l, t); |
1172 |
|
assertFalse(l.isSignalled()); |
1173 |
|
t.interrupt(); |
1174 |
< |
t.join(); |
1174 |
> |
awaitTermination(t); |
1175 |
> |
assertFalse(l.isSignalled()); |
1176 |
|
} |
1177 |
|
|
1178 |
|
/** |
1179 |
< |
* acquireSharedTimed throws IE if interrupted before released |
1179 |
> |
* tryAcquireSharedNanos is interruptible |
1180 |
|
*/ |
1181 |
< |
public void testAcquireSharedNanos_InterruptedException() throws InterruptedException { |
1181 |
> |
public void testTryAcquireSharedNanos_Interruptible() { |
1182 |
|
final BooleanLatch l = new BooleanLatch(); |
1183 |
< |
Thread t = new Thread(new Runnable() { |
1184 |
< |
public void run() { |
1185 |
< |
try { |
1186 |
< |
threadAssertFalse(l.isSignalled()); |
1187 |
< |
l.tryAcquireSharedNanos(0, SMALL_DELAY_MS* 1000 * 1000); |
1188 |
< |
threadShouldThrow(); |
1189 |
< |
} catch (InterruptedException success) {} |
1190 |
< |
} |
1101 |
< |
}); |
1102 |
< |
t.start(); |
1103 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1183 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
1184 |
> |
public void realRun() throws InterruptedException { |
1185 |
> |
assertFalse(l.isSignalled()); |
1186 |
> |
long nanos = MILLISECONDS.toNanos(2 * LONG_DELAY_MS); |
1187 |
> |
l.tryAcquireSharedNanos(0, nanos); |
1188 |
> |
}}); |
1189 |
> |
|
1190 |
> |
waitForQueuedThread(l, t); |
1191 |
|
assertFalse(l.isSignalled()); |
1192 |
|
t.interrupt(); |
1193 |
< |
t.join(); |
1193 |
> |
awaitTermination(t); |
1194 |
> |
assertFalse(l.isSignalled()); |
1195 |
|
} |
1196 |
|
|
1197 |
|
/** |
1198 |
< |
* acquireSharedTimed times out if not released before timeout |
1198 |
> |
* tryAcquireSharedNanos times out if not released before timeout |
1199 |
|
*/ |
1200 |
< |
public void testAcquireSharedNanos_Timeout() throws InterruptedException { |
1200 |
> |
public void testTryAcquireSharedNanos_Timeout() { |
1201 |
|
final BooleanLatch l = new BooleanLatch(); |
1202 |
< |
Thread t = new Thread(new Runnable() { |
1203 |
< |
public void run() { |
1204 |
< |
try { |
1205 |
< |
threadAssertFalse(l.isSignalled()); |
1206 |
< |
threadAssertFalse(l.tryAcquireSharedNanos(0, SMALL_DELAY_MS* 1000 * 1000)); |
1207 |
< |
} catch (InterruptedException ie) { |
1208 |
< |
threadUnexpectedException(); |
1209 |
< |
} |
1202 |
> |
final BooleanLatch observedQueued = new BooleanLatch(); |
1203 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
1204 |
> |
public void realRun() throws InterruptedException { |
1205 |
> |
assertFalse(l.isSignalled()); |
1206 |
> |
for (long millis = timeoutMillis(); |
1207 |
> |
!observedQueued.isSignalled(); |
1208 |
> |
millis *= 2) { |
1209 |
> |
long nanos = MILLISECONDS.toNanos(millis); |
1210 |
> |
long startTime = System.nanoTime(); |
1211 |
> |
assertFalse(l.tryAcquireSharedNanos(0, nanos)); |
1212 |
> |
assertTrue(millisElapsedSince(startTime) >= millis); |
1213 |
|
} |
1214 |
< |
}); |
1215 |
< |
t.start(); |
1216 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1214 |
> |
assertFalse(l.isSignalled()); |
1215 |
> |
}}); |
1216 |
> |
|
1217 |
> |
waitForQueuedThread(l, t); |
1218 |
> |
observedQueued.releaseShared(0); |
1219 |
> |
assertFalse(l.isSignalled()); |
1220 |
> |
awaitTermination(t); |
1221 |
|
assertFalse(l.isSignalled()); |
1127 |
– |
t.join(); |
1222 |
|
} |
1223 |
|
|
1224 |
+ |
/** |
1225 |
+ |
* awaitNanos/timed await with 0 wait times out immediately |
1226 |
+ |
*/ |
1227 |
+ |
public void testAwait_Zero() throws InterruptedException { |
1228 |
+ |
final Mutex sync = new Mutex(); |
1229 |
+ |
final ConditionObject c = sync.newCondition(); |
1230 |
+ |
sync.acquire(); |
1231 |
+ |
assertTrue(c.awaitNanos(0L) <= 0); |
1232 |
+ |
assertFalse(c.await(0L, NANOSECONDS)); |
1233 |
+ |
sync.release(); |
1234 |
+ |
} |
1235 |
+ |
|
1236 |
+ |
/** |
1237 |
+ |
* awaitNanos/timed await with maximum negative wait times does not underflow |
1238 |
+ |
*/ |
1239 |
+ |
public void testAwait_NegativeInfinity() throws InterruptedException { |
1240 |
+ |
final Mutex sync = new Mutex(); |
1241 |
+ |
final ConditionObject c = sync.newCondition(); |
1242 |
+ |
sync.acquire(); |
1243 |
+ |
assertTrue(c.awaitNanos(Long.MIN_VALUE) <= 0); |
1244 |
+ |
assertFalse(c.await(Long.MIN_VALUE, NANOSECONDS)); |
1245 |
+ |
sync.release(); |
1246 |
+ |
} |
1247 |
|
|
1248 |
|
} |