1 |
dl |
1.1 |
/* |
2 |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
3 |
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* Expert Group and released to the public domain, as explained at |
4 |
jsr166 |
1.22 |
* http://creativecommons.org/publicdomain/zero/1.0/ |
5 |
jsr166 |
1.5 |
* Other contributors include Andrew Wright, Jeffrey Hayes, |
6 |
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* Pat Fisher, Mike Judd. |
7 |
dl |
1.1 |
*/ |
8 |
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9 |
jsr166 |
1.12 |
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
10 |
jsr166 |
1.28 |
import static java.util.concurrent.TimeUnit.NANOSECONDS; |
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jsr166 |
1.29 |
|
12 |
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import java.util.Arrays; |
13 |
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import java.util.Collection; |
14 |
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import java.util.HashSet; |
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jsr166 |
1.43 |
import java.util.concurrent.ThreadLocalRandom; |
16 |
jsr166 |
1.24 |
import java.util.concurrent.locks.AbstractQueuedLongSynchronizer; |
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import java.util.concurrent.locks.AbstractQueuedLongSynchronizer.ConditionObject; |
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dl |
1.1 |
|
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jsr166 |
1.29 |
import junit.framework.AssertionFailedError; |
20 |
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import junit.framework.Test; |
21 |
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import junit.framework.TestSuite; |
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jsr166 |
1.41 |
@SuppressWarnings("WaitNotInLoop") // we implement spurious-wakeup freedom |
24 |
dl |
1.1 |
public class AbstractQueuedLongSynchronizerTest extends JSR166TestCase { |
25 |
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public static void main(String[] args) { |
26 |
jsr166 |
1.34 |
main(suite(), args); |
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dl |
1.1 |
} |
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public static Test suite() { |
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return new TestSuite(AbstractQueuedLongSynchronizerTest.class); |
30 |
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} |
31 |
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32 |
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/** |
33 |
jsr166 |
1.24 |
* A simple mutex class, adapted from the class javadoc. Exclusive |
34 |
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* acquire tests exercise this as a sample user extension. |
35 |
jsr166 |
1.42 |
* |
36 |
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* Unlike the javadoc sample, we don't track owner thread via |
37 |
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* AbstractOwnableSynchronizer methods. |
38 |
dl |
1.1 |
*/ |
39 |
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static class Mutex extends AbstractQueuedLongSynchronizer { |
40 |
jsr166 |
1.24 |
/** An eccentric value > 32 bits for locked synchronizer state. */ |
41 |
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static final long LOCKED = (1L << 63) | (1L << 15); |
42 |
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static final long UNLOCKED = 0; |
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|
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jsr166 |
1.42 |
/** Owner thread is untracked, so this is really just isLocked(). */ |
46 |
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@Override public boolean isHeldExclusively() { |
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jsr166 |
1.24 |
long state = getState(); |
48 |
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assertTrue(state == UNLOCKED || state == LOCKED); |
49 |
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return state == LOCKED; |
50 |
dl |
1.1 |
} |
51 |
jsr166 |
1.5 |
|
52 |
jsr166 |
1.42 |
@Override protected boolean tryAcquire(long acquires) { |
53 |
jsr166 |
1.24 |
assertEquals(LOCKED, acquires); |
54 |
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return compareAndSetState(UNLOCKED, LOCKED); |
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dl |
1.1 |
} |
56 |
jsr166 |
1.5 |
|
57 |
jsr166 |
1.42 |
@Override protected boolean tryRelease(long releases) { |
58 |
jsr166 |
1.24 |
if (getState() != LOCKED) throw new IllegalMonitorStateException(); |
59 |
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setState(UNLOCKED); |
60 |
dl |
1.1 |
return true; |
61 |
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} |
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jsr166 |
1.5 |
|
63 |
jsr166 |
1.24 |
public boolean tryAcquireNanos(long nanos) throws InterruptedException { |
64 |
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return tryAcquireNanos(LOCKED, nanos); |
65 |
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} |
66 |
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67 |
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public boolean tryAcquire() { |
68 |
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return tryAcquire(LOCKED); |
69 |
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} |
70 |
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71 |
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public boolean tryRelease() { |
72 |
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return tryRelease(LOCKED); |
73 |
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} |
74 |
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75 |
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public void acquire() { |
76 |
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acquire(LOCKED); |
77 |
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} |
78 |
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79 |
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public void acquireInterruptibly() throws InterruptedException { |
80 |
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acquireInterruptibly(LOCKED); |
81 |
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} |
82 |
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83 |
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public void release() { |
84 |
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release(LOCKED); |
85 |
jsr166 |
1.17 |
} |
86 |
dl |
1.1 |
|
87 |
jsr166 |
1.42 |
/** Faux-Implements Lock.newCondition(). */ |
88 |
jsr166 |
1.24 |
public ConditionObject newCondition() { |
89 |
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return new ConditionObject(); |
90 |
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} |
91 |
dl |
1.1 |
} |
92 |
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93 |
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/** |
94 |
jsr166 |
1.42 |
* A minimal latch class, to test shared mode. |
95 |
dl |
1.1 |
*/ |
96 |
jsr166 |
1.5 |
static class BooleanLatch extends AbstractQueuedLongSynchronizer { |
97 |
dl |
1.1 |
public boolean isSignalled() { return getState() != 0; } |
98 |
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99 |
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public long tryAcquireShared(long ignore) { |
100 |
jsr166 |
1.21 |
return isSignalled() ? 1 : -1; |
101 |
dl |
1.1 |
} |
102 |
jsr166 |
1.5 |
|
103 |
dl |
1.1 |
public boolean tryReleaseShared(long ignore) { |
104 |
jsr166 |
1.33 |
setState(1L << 62); |
105 |
dl |
1.1 |
return true; |
106 |
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} |
107 |
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} |
108 |
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109 |
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/** |
110 |
jsr166 |
1.10 |
* A runnable calling acquireInterruptibly that does not expect to |
111 |
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* be interrupted. |
112 |
dl |
1.1 |
*/ |
113 |
jsr166 |
1.10 |
class InterruptibleSyncRunnable extends CheckedRunnable { |
114 |
dl |
1.1 |
final Mutex sync; |
115 |
jsr166 |
1.24 |
InterruptibleSyncRunnable(Mutex sync) { this.sync = sync; } |
116 |
jsr166 |
1.10 |
public void realRun() throws InterruptedException { |
117 |
jsr166 |
1.24 |
sync.acquireInterruptibly(); |
118 |
dl |
1.1 |
} |
119 |
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} |
120 |
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121 |
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/** |
122 |
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* A runnable calling acquireInterruptibly that expects to be |
123 |
jsr166 |
1.10 |
* interrupted. |
124 |
dl |
1.1 |
*/ |
125 |
jsr166 |
1.10 |
class InterruptedSyncRunnable extends CheckedInterruptedRunnable { |
126 |
dl |
1.1 |
final Mutex sync; |
127 |
jsr166 |
1.24 |
InterruptedSyncRunnable(Mutex sync) { this.sync = sync; } |
128 |
jsr166 |
1.10 |
public void realRun() throws InterruptedException { |
129 |
jsr166 |
1.24 |
sync.acquireInterruptibly(); |
130 |
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} |
131 |
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} |
132 |
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133 |
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/** A constant to clarify calls to checking methods below. */ |
134 |
jsr166 |
1.26 |
static final Thread[] NO_THREADS = new Thread[0]; |
135 |
jsr166 |
1.24 |
|
136 |
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/** |
137 |
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* Spin-waits until sync.isQueued(t) becomes true. |
138 |
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*/ |
139 |
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void waitForQueuedThread(AbstractQueuedLongSynchronizer sync, |
140 |
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Thread t) { |
141 |
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long startTime = System.nanoTime(); |
142 |
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while (!sync.isQueued(t)) { |
143 |
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if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
144 |
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throw new AssertionFailedError("timed out"); |
145 |
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Thread.yield(); |
146 |
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} |
147 |
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assertTrue(t.isAlive()); |
148 |
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} |
149 |
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|
150 |
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/** |
151 |
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* Checks that sync has exactly the given queued threads. |
152 |
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*/ |
153 |
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void assertHasQueuedThreads(AbstractQueuedLongSynchronizer sync, |
154 |
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Thread... expected) { |
155 |
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Collection<Thread> actual = sync.getQueuedThreads(); |
156 |
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assertEquals(expected.length > 0, sync.hasQueuedThreads()); |
157 |
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assertEquals(expected.length, sync.getQueueLength()); |
158 |
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assertEquals(expected.length, actual.size()); |
159 |
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assertEquals(expected.length == 0, actual.isEmpty()); |
160 |
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assertEquals(new HashSet<Thread>(actual), |
161 |
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new HashSet<Thread>(Arrays.asList(expected))); |
162 |
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} |
163 |
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164 |
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/** |
165 |
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* Checks that sync has exactly the given (exclusive) queued threads. |
166 |
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*/ |
167 |
|
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void assertHasExclusiveQueuedThreads(AbstractQueuedLongSynchronizer sync, |
168 |
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Thread... expected) { |
169 |
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assertHasQueuedThreads(sync, expected); |
170 |
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assertEquals(new HashSet<Thread>(sync.getExclusiveQueuedThreads()), |
171 |
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new HashSet<Thread>(sync.getQueuedThreads())); |
172 |
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assertEquals(0, sync.getSharedQueuedThreads().size()); |
173 |
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assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
174 |
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} |
175 |
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176 |
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/** |
177 |
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* Checks that sync has exactly the given (shared) queued threads. |
178 |
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*/ |
179 |
|
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void assertHasSharedQueuedThreads(AbstractQueuedLongSynchronizer sync, |
180 |
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Thread... expected) { |
181 |
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assertHasQueuedThreads(sync, expected); |
182 |
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assertEquals(new HashSet<Thread>(sync.getSharedQueuedThreads()), |
183 |
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new HashSet<Thread>(sync.getQueuedThreads())); |
184 |
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assertEquals(0, sync.getExclusiveQueuedThreads().size()); |
185 |
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assertTrue(sync.getExclusiveQueuedThreads().isEmpty()); |
186 |
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} |
187 |
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188 |
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/** |
189 |
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* Checks that condition c has exactly the given waiter threads, |
190 |
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* after acquiring mutex. |
191 |
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*/ |
192 |
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void assertHasWaitersUnlocked(Mutex sync, ConditionObject c, |
193 |
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Thread... threads) { |
194 |
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sync.acquire(); |
195 |
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assertHasWaitersLocked(sync, c, threads); |
196 |
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sync.release(); |
197 |
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} |
198 |
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|
199 |
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/** |
200 |
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* Checks that condition c has exactly the given waiter threads. |
201 |
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*/ |
202 |
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void assertHasWaitersLocked(Mutex sync, ConditionObject c, |
203 |
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Thread... threads) { |
204 |
|
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assertEquals(threads.length > 0, sync.hasWaiters(c)); |
205 |
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assertEquals(threads.length, sync.getWaitQueueLength(c)); |
206 |
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assertEquals(threads.length == 0, sync.getWaitingThreads(c).isEmpty()); |
207 |
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assertEquals(threads.length, sync.getWaitingThreads(c).size()); |
208 |
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assertEquals(new HashSet<Thread>(sync.getWaitingThreads(c)), |
209 |
|
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new HashSet<Thread>(Arrays.asList(threads))); |
210 |
|
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} |
211 |
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|
212 |
jsr166 |
1.30 |
enum AwaitMethod { await, awaitTimed, awaitNanos, awaitUntil } |
213 |
jsr166 |
1.24 |
|
214 |
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/** |
215 |
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* Awaits condition using the specified AwaitMethod. |
216 |
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*/ |
217 |
|
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void await(ConditionObject c, AwaitMethod awaitMethod) |
218 |
|
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throws InterruptedException { |
219 |
|
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long timeoutMillis = 2 * LONG_DELAY_MS; |
220 |
|
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switch (awaitMethod) { |
221 |
|
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case await: |
222 |
|
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c.await(); |
223 |
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break; |
224 |
|
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case awaitTimed: |
225 |
|
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assertTrue(c.await(timeoutMillis, MILLISECONDS)); |
226 |
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break; |
227 |
|
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case awaitNanos: |
228 |
|
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long nanosTimeout = MILLISECONDS.toNanos(timeoutMillis); |
229 |
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long nanosRemaining = c.awaitNanos(nanosTimeout); |
230 |
|
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assertTrue(nanosRemaining > 0); |
231 |
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break; |
232 |
|
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case awaitUntil: |
233 |
|
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assertTrue(c.awaitUntil(delayedDate(timeoutMillis))); |
234 |
|
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break; |
235 |
jsr166 |
1.31 |
default: |
236 |
|
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throw new AssertionError(); |
237 |
dl |
1.1 |
} |
238 |
|
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} |
239 |
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|
240 |
|
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/** |
241 |
jsr166 |
1.24 |
* Checks that awaiting the given condition times out (using the |
242 |
|
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* default timeout duration). |
243 |
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*/ |
244 |
|
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void assertAwaitTimesOut(ConditionObject c, AwaitMethod awaitMethod) { |
245 |
jsr166 |
1.37 |
final long timeoutMillis = timeoutMillis(); |
246 |
|
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final long startTime; |
247 |
jsr166 |
1.24 |
try { |
248 |
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switch (awaitMethod) { |
249 |
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case awaitTimed: |
250 |
jsr166 |
1.36 |
startTime = System.nanoTime(); |
251 |
jsr166 |
1.24 |
assertFalse(c.await(timeoutMillis, MILLISECONDS)); |
252 |
jsr166 |
1.36 |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
253 |
jsr166 |
1.24 |
break; |
254 |
|
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case awaitNanos: |
255 |
jsr166 |
1.36 |
startTime = System.nanoTime(); |
256 |
jsr166 |
1.24 |
long nanosTimeout = MILLISECONDS.toNanos(timeoutMillis); |
257 |
|
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long nanosRemaining = c.awaitNanos(nanosTimeout); |
258 |
|
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assertTrue(nanosRemaining <= 0); |
259 |
jsr166 |
1.35 |
assertTrue(nanosRemaining > -MILLISECONDS.toNanos(LONG_DELAY_MS)); |
260 |
jsr166 |
1.36 |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
261 |
jsr166 |
1.24 |
break; |
262 |
|
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case awaitUntil: |
263 |
jsr166 |
1.36 |
// We shouldn't assume that nanoTime and currentTimeMillis |
264 |
|
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// use the same time source, so don't use nanoTime here. |
265 |
jsr166 |
1.37 |
java.util.Date delayedDate = delayedDate(timeoutMillis); |
266 |
jsr166 |
1.24 |
assertFalse(c.awaitUntil(delayedDate(timeoutMillis))); |
267 |
jsr166 |
1.36 |
assertTrue(new java.util.Date().getTime() >= delayedDate.getTime()); |
268 |
jsr166 |
1.24 |
break; |
269 |
|
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default: |
270 |
|
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throw new UnsupportedOperationException(); |
271 |
|
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} |
272 |
|
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} catch (InterruptedException ie) { threadUnexpectedException(ie); } |
273 |
|
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} |
274 |
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|
275 |
|
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/** |
276 |
dl |
1.1 |
* isHeldExclusively is false upon construction |
277 |
|
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*/ |
278 |
jsr166 |
1.5 |
public void testIsHeldExclusively() { |
279 |
jsr166 |
1.24 |
Mutex sync = new Mutex(); |
280 |
|
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assertFalse(sync.isHeldExclusively()); |
281 |
dl |
1.1 |
} |
282 |
jsr166 |
1.5 |
|
283 |
dl |
1.1 |
/** |
284 |
|
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* acquiring released sync succeeds |
285 |
|
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*/ |
286 |
jsr166 |
1.5 |
public void testAcquire() { |
287 |
jsr166 |
1.24 |
Mutex sync = new Mutex(); |
288 |
|
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sync.acquire(); |
289 |
|
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assertTrue(sync.isHeldExclusively()); |
290 |
|
|
sync.release(); |
291 |
|
|
assertFalse(sync.isHeldExclusively()); |
292 |
dl |
1.1 |
} |
293 |
|
|
|
294 |
|
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/** |
295 |
jsr166 |
1.24 |
* tryAcquire on a released sync succeeds |
296 |
dl |
1.1 |
*/ |
297 |
jsr166 |
1.5 |
public void testTryAcquire() { |
298 |
jsr166 |
1.24 |
Mutex sync = new Mutex(); |
299 |
|
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assertTrue(sync.tryAcquire()); |
300 |
|
|
assertTrue(sync.isHeldExclusively()); |
301 |
|
|
sync.release(); |
302 |
|
|
assertFalse(sync.isHeldExclusively()); |
303 |
dl |
1.1 |
} |
304 |
|
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|
305 |
|
|
/** |
306 |
|
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* hasQueuedThreads reports whether there are waiting threads |
307 |
|
|
*/ |
308 |
jsr166 |
1.24 |
public void testHasQueuedThreads() { |
309 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
310 |
jsr166 |
1.9 |
assertFalse(sync.hasQueuedThreads()); |
311 |
jsr166 |
1.24 |
sync.acquire(); |
312 |
|
|
Thread t1 = newStartedThread(new InterruptedSyncRunnable(sync)); |
313 |
|
|
waitForQueuedThread(sync, t1); |
314 |
jsr166 |
1.9 |
assertTrue(sync.hasQueuedThreads()); |
315 |
jsr166 |
1.24 |
Thread t2 = newStartedThread(new InterruptibleSyncRunnable(sync)); |
316 |
|
|
waitForQueuedThread(sync, t2); |
317 |
jsr166 |
1.9 |
assertTrue(sync.hasQueuedThreads()); |
318 |
|
|
t1.interrupt(); |
319 |
jsr166 |
1.24 |
awaitTermination(t1); |
320 |
jsr166 |
1.9 |
assertTrue(sync.hasQueuedThreads()); |
321 |
jsr166 |
1.24 |
sync.release(); |
322 |
|
|
awaitTermination(t2); |
323 |
jsr166 |
1.9 |
assertFalse(sync.hasQueuedThreads()); |
324 |
jsr166 |
1.5 |
} |
325 |
dl |
1.1 |
|
326 |
|
|
/** |
327 |
jsr166 |
1.24 |
* isQueued(null) throws NullPointerException |
328 |
dl |
1.1 |
*/ |
329 |
jsr166 |
1.5 |
public void testIsQueuedNPE() { |
330 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
331 |
dl |
1.1 |
try { |
332 |
|
|
sync.isQueued(null); |
333 |
|
|
shouldThrow(); |
334 |
jsr166 |
1.9 |
} catch (NullPointerException success) {} |
335 |
dl |
1.1 |
} |
336 |
|
|
|
337 |
|
|
/** |
338 |
jsr166 |
1.24 |
* isQueued reports whether a thread is queued |
339 |
dl |
1.1 |
*/ |
340 |
jsr166 |
1.24 |
public void testIsQueued() { |
341 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
342 |
dl |
1.1 |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
343 |
|
|
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
344 |
jsr166 |
1.9 |
assertFalse(sync.isQueued(t1)); |
345 |
|
|
assertFalse(sync.isQueued(t2)); |
346 |
jsr166 |
1.24 |
sync.acquire(); |
347 |
jsr166 |
1.9 |
t1.start(); |
348 |
jsr166 |
1.24 |
waitForQueuedThread(sync, t1); |
349 |
jsr166 |
1.9 |
assertTrue(sync.isQueued(t1)); |
350 |
jsr166 |
1.24 |
assertFalse(sync.isQueued(t2)); |
351 |
jsr166 |
1.9 |
t2.start(); |
352 |
jsr166 |
1.24 |
waitForQueuedThread(sync, t2); |
353 |
jsr166 |
1.9 |
assertTrue(sync.isQueued(t1)); |
354 |
|
|
assertTrue(sync.isQueued(t2)); |
355 |
|
|
t1.interrupt(); |
356 |
jsr166 |
1.24 |
awaitTermination(t1); |
357 |
jsr166 |
1.9 |
assertFalse(sync.isQueued(t1)); |
358 |
|
|
assertTrue(sync.isQueued(t2)); |
359 |
jsr166 |
1.24 |
sync.release(); |
360 |
|
|
awaitTermination(t2); |
361 |
jsr166 |
1.9 |
assertFalse(sync.isQueued(t1)); |
362 |
|
|
assertFalse(sync.isQueued(t2)); |
363 |
jsr166 |
1.5 |
} |
364 |
dl |
1.1 |
|
365 |
|
|
/** |
366 |
|
|
* getFirstQueuedThread returns first waiting thread or null if none |
367 |
|
|
*/ |
368 |
jsr166 |
1.24 |
public void testGetFirstQueuedThread() { |
369 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
370 |
jsr166 |
1.9 |
assertNull(sync.getFirstQueuedThread()); |
371 |
jsr166 |
1.24 |
sync.acquire(); |
372 |
|
|
Thread t1 = newStartedThread(new InterruptedSyncRunnable(sync)); |
373 |
|
|
waitForQueuedThread(sync, t1); |
374 |
jsr166 |
1.9 |
assertEquals(t1, sync.getFirstQueuedThread()); |
375 |
jsr166 |
1.24 |
Thread t2 = newStartedThread(new InterruptibleSyncRunnable(sync)); |
376 |
|
|
waitForQueuedThread(sync, t2); |
377 |
jsr166 |
1.9 |
assertEquals(t1, sync.getFirstQueuedThread()); |
378 |
|
|
t1.interrupt(); |
379 |
jsr166 |
1.24 |
awaitTermination(t1); |
380 |
jsr166 |
1.9 |
assertEquals(t2, sync.getFirstQueuedThread()); |
381 |
jsr166 |
1.24 |
sync.release(); |
382 |
|
|
awaitTermination(t2); |
383 |
jsr166 |
1.9 |
assertNull(sync.getFirstQueuedThread()); |
384 |
jsr166 |
1.5 |
} |
385 |
dl |
1.1 |
|
386 |
|
|
/** |
387 |
|
|
* hasContended reports false if no thread has ever blocked, else true |
388 |
|
|
*/ |
389 |
jsr166 |
1.24 |
public void testHasContended() { |
390 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
391 |
jsr166 |
1.9 |
assertFalse(sync.hasContended()); |
392 |
jsr166 |
1.24 |
sync.acquire(); |
393 |
|
|
assertFalse(sync.hasContended()); |
394 |
|
|
Thread t1 = newStartedThread(new InterruptedSyncRunnable(sync)); |
395 |
|
|
waitForQueuedThread(sync, t1); |
396 |
jsr166 |
1.9 |
assertTrue(sync.hasContended()); |
397 |
jsr166 |
1.24 |
Thread t2 = newStartedThread(new InterruptibleSyncRunnable(sync)); |
398 |
|
|
waitForQueuedThread(sync, t2); |
399 |
jsr166 |
1.9 |
assertTrue(sync.hasContended()); |
400 |
|
|
t1.interrupt(); |
401 |
jsr166 |
1.24 |
awaitTermination(t1); |
402 |
jsr166 |
1.9 |
assertTrue(sync.hasContended()); |
403 |
jsr166 |
1.24 |
sync.release(); |
404 |
|
|
awaitTermination(t2); |
405 |
jsr166 |
1.9 |
assertTrue(sync.hasContended()); |
406 |
jsr166 |
1.5 |
} |
407 |
dl |
1.1 |
|
408 |
|
|
/** |
409 |
jsr166 |
1.24 |
* getQueuedThreads returns all waiting threads |
410 |
dl |
1.1 |
*/ |
411 |
jsr166 |
1.24 |
public void testGetQueuedThreads() { |
412 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
413 |
dl |
1.1 |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
414 |
|
|
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
415 |
jsr166 |
1.24 |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
416 |
|
|
sync.acquire(); |
417 |
|
|
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
418 |
jsr166 |
1.9 |
t1.start(); |
419 |
jsr166 |
1.24 |
waitForQueuedThread(sync, t1); |
420 |
|
|
assertHasExclusiveQueuedThreads(sync, t1); |
421 |
jsr166 |
1.9 |
assertTrue(sync.getQueuedThreads().contains(t1)); |
422 |
jsr166 |
1.24 |
assertFalse(sync.getQueuedThreads().contains(t2)); |
423 |
jsr166 |
1.9 |
t2.start(); |
424 |
jsr166 |
1.24 |
waitForQueuedThread(sync, t2); |
425 |
|
|
assertHasExclusiveQueuedThreads(sync, t1, t2); |
426 |
jsr166 |
1.9 |
assertTrue(sync.getQueuedThreads().contains(t1)); |
427 |
|
|
assertTrue(sync.getQueuedThreads().contains(t2)); |
428 |
|
|
t1.interrupt(); |
429 |
jsr166 |
1.24 |
awaitTermination(t1); |
430 |
|
|
assertHasExclusiveQueuedThreads(sync, t2); |
431 |
|
|
sync.release(); |
432 |
|
|
awaitTermination(t2); |
433 |
|
|
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
434 |
jsr166 |
1.5 |
} |
435 |
dl |
1.1 |
|
436 |
|
|
/** |
437 |
jsr166 |
1.24 |
* getExclusiveQueuedThreads returns all exclusive waiting threads |
438 |
dl |
1.1 |
*/ |
439 |
jsr166 |
1.24 |
public void testGetExclusiveQueuedThreads() { |
440 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
441 |
dl |
1.1 |
Thread t1 = new Thread(new InterruptedSyncRunnable(sync)); |
442 |
|
|
Thread t2 = new Thread(new InterruptibleSyncRunnable(sync)); |
443 |
jsr166 |
1.24 |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
444 |
|
|
sync.acquire(); |
445 |
|
|
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
446 |
jsr166 |
1.9 |
t1.start(); |
447 |
jsr166 |
1.24 |
waitForQueuedThread(sync, t1); |
448 |
|
|
assertHasExclusiveQueuedThreads(sync, t1); |
449 |
jsr166 |
1.9 |
assertTrue(sync.getExclusiveQueuedThreads().contains(t1)); |
450 |
jsr166 |
1.24 |
assertFalse(sync.getExclusiveQueuedThreads().contains(t2)); |
451 |
jsr166 |
1.9 |
t2.start(); |
452 |
jsr166 |
1.24 |
waitForQueuedThread(sync, t2); |
453 |
|
|
assertHasExclusiveQueuedThreads(sync, t1, t2); |
454 |
jsr166 |
1.9 |
assertTrue(sync.getExclusiveQueuedThreads().contains(t1)); |
455 |
|
|
assertTrue(sync.getExclusiveQueuedThreads().contains(t2)); |
456 |
|
|
t1.interrupt(); |
457 |
jsr166 |
1.24 |
awaitTermination(t1); |
458 |
|
|
assertHasExclusiveQueuedThreads(sync, t2); |
459 |
|
|
sync.release(); |
460 |
|
|
awaitTermination(t2); |
461 |
|
|
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
462 |
jsr166 |
1.5 |
} |
463 |
dl |
1.1 |
|
464 |
|
|
/** |
465 |
|
|
* getSharedQueuedThreads does not include exclusively waiting threads |
466 |
|
|
*/ |
467 |
jsr166 |
1.24 |
public void testGetSharedQueuedThreads_Exclusive() { |
468 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
469 |
jsr166 |
1.9 |
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
470 |
jsr166 |
1.24 |
sync.acquire(); |
471 |
jsr166 |
1.9 |
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
472 |
jsr166 |
1.24 |
Thread t1 = newStartedThread(new InterruptedSyncRunnable(sync)); |
473 |
|
|
waitForQueuedThread(sync, t1); |
474 |
jsr166 |
1.9 |
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
475 |
jsr166 |
1.24 |
Thread t2 = newStartedThread(new InterruptibleSyncRunnable(sync)); |
476 |
|
|
waitForQueuedThread(sync, t2); |
477 |
jsr166 |
1.9 |
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
478 |
|
|
t1.interrupt(); |
479 |
jsr166 |
1.24 |
awaitTermination(t1); |
480 |
jsr166 |
1.9 |
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
481 |
jsr166 |
1.24 |
sync.release(); |
482 |
|
|
awaitTermination(t2); |
483 |
jsr166 |
1.9 |
assertTrue(sync.getSharedQueuedThreads().isEmpty()); |
484 |
jsr166 |
1.5 |
} |
485 |
dl |
1.1 |
|
486 |
|
|
/** |
487 |
jsr166 |
1.24 |
* getSharedQueuedThreads returns all shared waiting threads |
488 |
dl |
1.1 |
*/ |
489 |
jsr166 |
1.24 |
public void testGetSharedQueuedThreads_Shared() { |
490 |
|
|
final BooleanLatch l = new BooleanLatch(); |
491 |
|
|
assertHasSharedQueuedThreads(l, NO_THREADS); |
492 |
|
|
Thread t1 = newStartedThread(new CheckedInterruptedRunnable() { |
493 |
|
|
public void realRun() throws InterruptedException { |
494 |
|
|
l.acquireSharedInterruptibly(0); |
495 |
|
|
}}); |
496 |
|
|
waitForQueuedThread(l, t1); |
497 |
|
|
assertHasSharedQueuedThreads(l, t1); |
498 |
|
|
Thread t2 = newStartedThread(new CheckedRunnable() { |
499 |
|
|
public void realRun() throws InterruptedException { |
500 |
|
|
l.acquireSharedInterruptibly(0); |
501 |
|
|
}}); |
502 |
|
|
waitForQueuedThread(l, t2); |
503 |
|
|
assertHasSharedQueuedThreads(l, t1, t2); |
504 |
|
|
t1.interrupt(); |
505 |
|
|
awaitTermination(t1); |
506 |
|
|
assertHasSharedQueuedThreads(l, t2); |
507 |
|
|
assertTrue(l.releaseShared(0)); |
508 |
|
|
awaitTermination(t2); |
509 |
|
|
assertHasSharedQueuedThreads(l, NO_THREADS); |
510 |
|
|
} |
511 |
|
|
|
512 |
|
|
/** |
513 |
|
|
* tryAcquireNanos is interruptible |
514 |
|
|
*/ |
515 |
|
|
public void testTryAcquireNanos_Interruptible() { |
516 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
517 |
jsr166 |
1.24 |
sync.acquire(); |
518 |
|
|
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
519 |
jsr166 |
1.10 |
public void realRun() throws InterruptedException { |
520 |
jsr166 |
1.24 |
sync.tryAcquireNanos(MILLISECONDS.toNanos(2 * LONG_DELAY_MS)); |
521 |
jsr166 |
1.10 |
}}); |
522 |
jsr166 |
1.9 |
|
523 |
jsr166 |
1.24 |
waitForQueuedThread(sync, t); |
524 |
jsr166 |
1.9 |
t.interrupt(); |
525 |
jsr166 |
1.24 |
awaitTermination(t); |
526 |
dl |
1.1 |
} |
527 |
|
|
|
528 |
|
|
/** |
529 |
jsr166 |
1.24 |
* tryAcquire on exclusively held sync fails |
530 |
dl |
1.1 |
*/ |
531 |
jsr166 |
1.24 |
public void testTryAcquireWhenSynced() { |
532 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
533 |
jsr166 |
1.24 |
sync.acquire(); |
534 |
|
|
Thread t = newStartedThread(new CheckedRunnable() { |
535 |
jsr166 |
1.10 |
public void realRun() { |
536 |
jsr166 |
1.24 |
assertFalse(sync.tryAcquire()); |
537 |
jsr166 |
1.10 |
}}); |
538 |
jsr166 |
1.9 |
|
539 |
jsr166 |
1.24 |
awaitTermination(t); |
540 |
|
|
sync.release(); |
541 |
jsr166 |
1.5 |
} |
542 |
dl |
1.1 |
|
543 |
|
|
/** |
544 |
|
|
* tryAcquireNanos on an exclusively held sync times out |
545 |
|
|
*/ |
546 |
jsr166 |
1.24 |
public void testAcquireNanos_Timeout() { |
547 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
548 |
jsr166 |
1.24 |
sync.acquire(); |
549 |
|
|
Thread t = newStartedThread(new CheckedRunnable() { |
550 |
jsr166 |
1.10 |
public void realRun() throws InterruptedException { |
551 |
jsr166 |
1.24 |
long startTime = System.nanoTime(); |
552 |
|
|
long nanos = MILLISECONDS.toNanos(timeoutMillis()); |
553 |
|
|
assertFalse(sync.tryAcquireNanos(nanos)); |
554 |
|
|
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
555 |
jsr166 |
1.10 |
}}); |
556 |
jsr166 |
1.9 |
|
557 |
jsr166 |
1.24 |
awaitTermination(t); |
558 |
|
|
sync.release(); |
559 |
jsr166 |
1.5 |
} |
560 |
|
|
|
561 |
dl |
1.1 |
/** |
562 |
|
|
* getState is true when acquired and false when not |
563 |
|
|
*/ |
564 |
jsr166 |
1.24 |
public void testGetState() { |
565 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
566 |
jsr166 |
1.24 |
sync.acquire(); |
567 |
jsr166 |
1.11 |
assertTrue(sync.isHeldExclusively()); |
568 |
jsr166 |
1.24 |
sync.release(); |
569 |
jsr166 |
1.11 |
assertFalse(sync.isHeldExclusively()); |
570 |
jsr166 |
1.24 |
|
571 |
|
|
final BooleanLatch acquired = new BooleanLatch(); |
572 |
|
|
final BooleanLatch done = new BooleanLatch(); |
573 |
|
|
Thread t = newStartedThread(new CheckedRunnable() { |
574 |
jsr166 |
1.10 |
public void realRun() throws InterruptedException { |
575 |
jsr166 |
1.24 |
sync.acquire(); |
576 |
|
|
assertTrue(acquired.releaseShared(0)); |
577 |
|
|
done.acquireShared(0); |
578 |
|
|
sync.release(); |
579 |
jsr166 |
1.10 |
}}); |
580 |
jsr166 |
1.9 |
|
581 |
jsr166 |
1.24 |
acquired.acquireShared(0); |
582 |
jsr166 |
1.9 |
assertTrue(sync.isHeldExclusively()); |
583 |
jsr166 |
1.24 |
assertTrue(done.releaseShared(0)); |
584 |
|
|
awaitTermination(t); |
585 |
jsr166 |
1.9 |
assertFalse(sync.isHeldExclusively()); |
586 |
dl |
1.1 |
} |
587 |
|
|
|
588 |
|
|
/** |
589 |
jsr166 |
1.24 |
* acquireInterruptibly succeeds when released, else is interruptible |
590 |
dl |
1.1 |
*/ |
591 |
jsr166 |
1.24 |
public void testAcquireInterruptibly() throws InterruptedException { |
592 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
593 |
jsr166 |
1.24 |
final BooleanLatch threadStarted = new BooleanLatch(); |
594 |
|
|
sync.acquireInterruptibly(); |
595 |
|
|
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
596 |
|
|
public void realRun() throws InterruptedException { |
597 |
|
|
assertTrue(threadStarted.releaseShared(0)); |
598 |
|
|
sync.acquireInterruptibly(); |
599 |
|
|
}}); |
600 |
dl |
1.1 |
|
601 |
jsr166 |
1.24 |
threadStarted.acquireShared(0); |
602 |
|
|
waitForQueuedThread(sync, t); |
603 |
jsr166 |
1.9 |
t.interrupt(); |
604 |
jsr166 |
1.24 |
awaitTermination(t); |
605 |
jsr166 |
1.9 |
assertTrue(sync.isHeldExclusively()); |
606 |
dl |
1.1 |
} |
607 |
|
|
|
608 |
|
|
/** |
609 |
|
|
* owns is true for a condition created by sync else false |
610 |
|
|
*/ |
611 |
|
|
public void testOwns() { |
612 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
613 |
jsr166 |
1.24 |
final ConditionObject c = sync.newCondition(); |
614 |
dl |
1.1 |
final Mutex sync2 = new Mutex(); |
615 |
|
|
assertTrue(sync.owns(c)); |
616 |
|
|
assertFalse(sync2.owns(c)); |
617 |
|
|
} |
618 |
|
|
|
619 |
|
|
/** |
620 |
|
|
* Calling await without holding sync throws IllegalMonitorStateException |
621 |
|
|
*/ |
622 |
jsr166 |
1.24 |
public void testAwait_IMSE() { |
623 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
624 |
jsr166 |
1.24 |
final ConditionObject c = sync.newCondition(); |
625 |
|
|
for (AwaitMethod awaitMethod : AwaitMethod.values()) { |
626 |
|
|
long startTime = System.nanoTime(); |
627 |
|
|
try { |
628 |
|
|
await(c, awaitMethod); |
629 |
|
|
shouldThrow(); |
630 |
|
|
} catch (IllegalMonitorStateException success) { |
631 |
|
|
} catch (InterruptedException e) { threadUnexpectedException(e); } |
632 |
|
|
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
633 |
|
|
} |
634 |
dl |
1.1 |
} |
635 |
|
|
|
636 |
|
|
/** |
637 |
|
|
* Calling signal without holding sync throws IllegalMonitorStateException |
638 |
|
|
*/ |
639 |
jsr166 |
1.24 |
public void testSignal_IMSE() { |
640 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
641 |
jsr166 |
1.24 |
final ConditionObject c = sync.newCondition(); |
642 |
dl |
1.1 |
try { |
643 |
|
|
c.signal(); |
644 |
|
|
shouldThrow(); |
645 |
jsr166 |
1.10 |
} catch (IllegalMonitorStateException success) {} |
646 |
jsr166 |
1.24 |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
647 |
dl |
1.1 |
} |
648 |
|
|
|
649 |
|
|
/** |
650 |
jsr166 |
1.24 |
* Calling signalAll without holding sync throws IllegalMonitorStateException |
651 |
dl |
1.1 |
*/ |
652 |
jsr166 |
1.24 |
public void testSignalAll_IMSE() { |
653 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
654 |
jsr166 |
1.24 |
final ConditionObject c = sync.newCondition(); |
655 |
|
|
try { |
656 |
|
|
c.signalAll(); |
657 |
|
|
shouldThrow(); |
658 |
|
|
} catch (IllegalMonitorStateException success) {} |
659 |
dl |
1.1 |
} |
660 |
|
|
|
661 |
|
|
/** |
662 |
jsr166 |
1.24 |
* await/awaitNanos/awaitUntil without a signal times out |
663 |
dl |
1.1 |
*/ |
664 |
jsr166 |
1.24 |
public void testAwaitTimed_Timeout() { testAwait_Timeout(AwaitMethod.awaitTimed); } |
665 |
|
|
public void testAwaitNanos_Timeout() { testAwait_Timeout(AwaitMethod.awaitNanos); } |
666 |
|
|
public void testAwaitUntil_Timeout() { testAwait_Timeout(AwaitMethod.awaitUntil); } |
667 |
|
|
public void testAwait_Timeout(AwaitMethod awaitMethod) { |
668 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
669 |
jsr166 |
1.24 |
final ConditionObject c = sync.newCondition(); |
670 |
|
|
sync.acquire(); |
671 |
|
|
assertAwaitTimesOut(c, awaitMethod); |
672 |
|
|
sync.release(); |
673 |
dl |
1.1 |
} |
674 |
|
|
|
675 |
|
|
/** |
676 |
jsr166 |
1.24 |
* await/awaitNanos/awaitUntil returns when signalled |
677 |
dl |
1.1 |
*/ |
678 |
jsr166 |
1.24 |
public void testSignal_await() { testSignal(AwaitMethod.await); } |
679 |
|
|
public void testSignal_awaitTimed() { testSignal(AwaitMethod.awaitTimed); } |
680 |
|
|
public void testSignal_awaitNanos() { testSignal(AwaitMethod.awaitNanos); } |
681 |
|
|
public void testSignal_awaitUntil() { testSignal(AwaitMethod.awaitUntil); } |
682 |
|
|
public void testSignal(final AwaitMethod awaitMethod) { |
683 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
684 |
jsr166 |
1.24 |
final ConditionObject c = sync.newCondition(); |
685 |
|
|
final BooleanLatch acquired = new BooleanLatch(); |
686 |
|
|
Thread t = newStartedThread(new CheckedRunnable() { |
687 |
jsr166 |
1.10 |
public void realRun() throws InterruptedException { |
688 |
jsr166 |
1.24 |
sync.acquire(); |
689 |
|
|
assertTrue(acquired.releaseShared(0)); |
690 |
|
|
await(c, awaitMethod); |
691 |
|
|
sync.release(); |
692 |
jsr166 |
1.10 |
}}); |
693 |
dl |
1.1 |
|
694 |
jsr166 |
1.24 |
acquired.acquireShared(0); |
695 |
|
|
sync.acquire(); |
696 |
|
|
assertHasWaitersLocked(sync, c, t); |
697 |
|
|
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
698 |
jsr166 |
1.9 |
c.signal(); |
699 |
jsr166 |
1.24 |
assertHasWaitersLocked(sync, c, NO_THREADS); |
700 |
|
|
assertHasExclusiveQueuedThreads(sync, t); |
701 |
|
|
sync.release(); |
702 |
|
|
awaitTermination(t); |
703 |
dl |
1.1 |
} |
704 |
|
|
|
705 |
|
|
/** |
706 |
jsr166 |
1.24 |
* hasWaiters(null) throws NullPointerException |
707 |
dl |
1.1 |
*/ |
708 |
|
|
public void testHasWaitersNPE() { |
709 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
710 |
dl |
1.1 |
try { |
711 |
|
|
sync.hasWaiters(null); |
712 |
|
|
shouldThrow(); |
713 |
jsr166 |
1.9 |
} catch (NullPointerException success) {} |
714 |
dl |
1.1 |
} |
715 |
|
|
|
716 |
|
|
/** |
717 |
jsr166 |
1.24 |
* getWaitQueueLength(null) throws NullPointerException |
718 |
dl |
1.1 |
*/ |
719 |
|
|
public void testGetWaitQueueLengthNPE() { |
720 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
721 |
dl |
1.1 |
try { |
722 |
|
|
sync.getWaitQueueLength(null); |
723 |
|
|
shouldThrow(); |
724 |
jsr166 |
1.9 |
} catch (NullPointerException success) {} |
725 |
dl |
1.1 |
} |
726 |
|
|
|
727 |
|
|
/** |
728 |
|
|
* getWaitingThreads throws NPE if null |
729 |
|
|
*/ |
730 |
|
|
public void testGetWaitingThreadsNPE() { |
731 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
732 |
dl |
1.1 |
try { |
733 |
|
|
sync.getWaitingThreads(null); |
734 |
|
|
shouldThrow(); |
735 |
jsr166 |
1.9 |
} catch (NullPointerException success) {} |
736 |
dl |
1.1 |
} |
737 |
|
|
|
738 |
|
|
/** |
739 |
jsr166 |
1.24 |
* hasWaiters throws IllegalArgumentException if not owned |
740 |
dl |
1.1 |
*/ |
741 |
|
|
public void testHasWaitersIAE() { |
742 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
743 |
jsr166 |
1.24 |
final ConditionObject c = sync.newCondition(); |
744 |
jsr166 |
1.11 |
final Mutex sync2 = new Mutex(); |
745 |
dl |
1.1 |
try { |
746 |
|
|
sync2.hasWaiters(c); |
747 |
|
|
shouldThrow(); |
748 |
jsr166 |
1.9 |
} catch (IllegalArgumentException success) {} |
749 |
jsr166 |
1.24 |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
750 |
dl |
1.1 |
} |
751 |
|
|
|
752 |
|
|
/** |
753 |
jsr166 |
1.24 |
* hasWaiters throws IllegalMonitorStateException if not synced |
754 |
dl |
1.1 |
*/ |
755 |
|
|
public void testHasWaitersIMSE() { |
756 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
757 |
jsr166 |
1.24 |
final ConditionObject c = sync.newCondition(); |
758 |
dl |
1.1 |
try { |
759 |
|
|
sync.hasWaiters(c); |
760 |
|
|
shouldThrow(); |
761 |
jsr166 |
1.9 |
} catch (IllegalMonitorStateException success) {} |
762 |
jsr166 |
1.24 |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
763 |
dl |
1.1 |
} |
764 |
|
|
|
765 |
|
|
/** |
766 |
jsr166 |
1.24 |
* getWaitQueueLength throws IllegalArgumentException if not owned |
767 |
dl |
1.1 |
*/ |
768 |
|
|
public void testGetWaitQueueLengthIAE() { |
769 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
770 |
jsr166 |
1.24 |
final ConditionObject c = sync.newCondition(); |
771 |
jsr166 |
1.11 |
final Mutex sync2 = new Mutex(); |
772 |
dl |
1.1 |
try { |
773 |
|
|
sync2.getWaitQueueLength(c); |
774 |
|
|
shouldThrow(); |
775 |
jsr166 |
1.9 |
} catch (IllegalArgumentException success) {} |
776 |
jsr166 |
1.24 |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
777 |
dl |
1.1 |
} |
778 |
|
|
|
779 |
|
|
/** |
780 |
jsr166 |
1.24 |
* getWaitQueueLength throws IllegalMonitorStateException if not synced |
781 |
dl |
1.1 |
*/ |
782 |
|
|
public void testGetWaitQueueLengthIMSE() { |
783 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
784 |
jsr166 |
1.24 |
final ConditionObject c = sync.newCondition(); |
785 |
dl |
1.1 |
try { |
786 |
|
|
sync.getWaitQueueLength(c); |
787 |
|
|
shouldThrow(); |
788 |
jsr166 |
1.9 |
} catch (IllegalMonitorStateException success) {} |
789 |
jsr166 |
1.24 |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
790 |
dl |
1.1 |
} |
791 |
|
|
|
792 |
|
|
/** |
793 |
jsr166 |
1.24 |
* getWaitingThreads throws IllegalArgumentException if not owned |
794 |
dl |
1.1 |
*/ |
795 |
|
|
public void testGetWaitingThreadsIAE() { |
796 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
797 |
jsr166 |
1.24 |
final ConditionObject c = sync.newCondition(); |
798 |
jsr166 |
1.11 |
final Mutex sync2 = new Mutex(); |
799 |
dl |
1.1 |
try { |
800 |
|
|
sync2.getWaitingThreads(c); |
801 |
|
|
shouldThrow(); |
802 |
jsr166 |
1.9 |
} catch (IllegalArgumentException success) {} |
803 |
jsr166 |
1.24 |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
804 |
dl |
1.1 |
} |
805 |
|
|
|
806 |
|
|
/** |
807 |
jsr166 |
1.24 |
* getWaitingThreads throws IllegalMonitorStateException if not synced |
808 |
dl |
1.1 |
*/ |
809 |
|
|
public void testGetWaitingThreadsIMSE() { |
810 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
811 |
jsr166 |
1.24 |
final ConditionObject c = sync.newCondition(); |
812 |
dl |
1.1 |
try { |
813 |
|
|
sync.getWaitingThreads(c); |
814 |
|
|
shouldThrow(); |
815 |
jsr166 |
1.9 |
} catch (IllegalMonitorStateException success) {} |
816 |
jsr166 |
1.24 |
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
817 |
dl |
1.1 |
} |
818 |
|
|
|
819 |
|
|
/** |
820 |
|
|
* hasWaiters returns true when a thread is waiting, else false |
821 |
|
|
*/ |
822 |
jsr166 |
1.24 |
public void testHasWaiters() { |
823 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
824 |
jsr166 |
1.24 |
final ConditionObject c = sync.newCondition(); |
825 |
|
|
final BooleanLatch acquired = new BooleanLatch(); |
826 |
|
|
Thread t = newStartedThread(new CheckedRunnable() { |
827 |
jsr166 |
1.10 |
public void realRun() throws InterruptedException { |
828 |
jsr166 |
1.24 |
sync.acquire(); |
829 |
|
|
assertHasWaitersLocked(sync, c, NO_THREADS); |
830 |
jsr166 |
1.17 |
assertFalse(sync.hasWaiters(c)); |
831 |
jsr166 |
1.24 |
assertTrue(acquired.releaseShared(0)); |
832 |
jsr166 |
1.10 |
c.await(); |
833 |
jsr166 |
1.24 |
sync.release(); |
834 |
jsr166 |
1.10 |
}}); |
835 |
dl |
1.1 |
|
836 |
jsr166 |
1.24 |
acquired.acquireShared(0); |
837 |
|
|
sync.acquire(); |
838 |
|
|
assertHasWaitersLocked(sync, c, t); |
839 |
|
|
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
840 |
jsr166 |
1.9 |
assertTrue(sync.hasWaiters(c)); |
841 |
|
|
c.signal(); |
842 |
jsr166 |
1.24 |
assertHasWaitersLocked(sync, c, NO_THREADS); |
843 |
|
|
assertHasExclusiveQueuedThreads(sync, t); |
844 |
jsr166 |
1.9 |
assertFalse(sync.hasWaiters(c)); |
845 |
jsr166 |
1.24 |
sync.release(); |
846 |
|
|
|
847 |
|
|
awaitTermination(t); |
848 |
|
|
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
849 |
dl |
1.1 |
} |
850 |
|
|
|
851 |
|
|
/** |
852 |
|
|
* getWaitQueueLength returns number of waiting threads |
853 |
|
|
*/ |
854 |
jsr166 |
1.24 |
public void testGetWaitQueueLength() { |
855 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
856 |
jsr166 |
1.24 |
final ConditionObject c = sync.newCondition(); |
857 |
|
|
final BooleanLatch acquired1 = new BooleanLatch(); |
858 |
|
|
final BooleanLatch acquired2 = new BooleanLatch(); |
859 |
|
|
final Thread t1 = newStartedThread(new CheckedRunnable() { |
860 |
jsr166 |
1.10 |
public void realRun() throws InterruptedException { |
861 |
jsr166 |
1.24 |
sync.acquire(); |
862 |
|
|
assertHasWaitersLocked(sync, c, NO_THREADS); |
863 |
jsr166 |
1.17 |
assertEquals(0, sync.getWaitQueueLength(c)); |
864 |
jsr166 |
1.24 |
assertTrue(acquired1.releaseShared(0)); |
865 |
jsr166 |
1.10 |
c.await(); |
866 |
jsr166 |
1.24 |
sync.release(); |
867 |
jsr166 |
1.10 |
}}); |
868 |
jsr166 |
1.24 |
acquired1.acquireShared(0); |
869 |
|
|
sync.acquire(); |
870 |
|
|
assertHasWaitersLocked(sync, c, t1); |
871 |
|
|
assertEquals(1, sync.getWaitQueueLength(c)); |
872 |
|
|
sync.release(); |
873 |
jsr166 |
1.10 |
|
874 |
jsr166 |
1.24 |
final Thread t2 = newStartedThread(new CheckedRunnable() { |
875 |
jsr166 |
1.10 |
public void realRun() throws InterruptedException { |
876 |
jsr166 |
1.24 |
sync.acquire(); |
877 |
|
|
assertHasWaitersLocked(sync, c, t1); |
878 |
jsr166 |
1.17 |
assertEquals(1, sync.getWaitQueueLength(c)); |
879 |
jsr166 |
1.24 |
assertTrue(acquired2.releaseShared(0)); |
880 |
jsr166 |
1.10 |
c.await(); |
881 |
jsr166 |
1.24 |
sync.release(); |
882 |
jsr166 |
1.10 |
}}); |
883 |
jsr166 |
1.24 |
acquired2.acquireShared(0); |
884 |
|
|
sync.acquire(); |
885 |
|
|
assertHasWaitersLocked(sync, c, t1, t2); |
886 |
|
|
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
887 |
jsr166 |
1.9 |
assertEquals(2, sync.getWaitQueueLength(c)); |
888 |
|
|
c.signalAll(); |
889 |
jsr166 |
1.24 |
assertHasWaitersLocked(sync, c, NO_THREADS); |
890 |
|
|
assertHasExclusiveQueuedThreads(sync, t1, t2); |
891 |
jsr166 |
1.9 |
assertEquals(0, sync.getWaitQueueLength(c)); |
892 |
jsr166 |
1.24 |
sync.release(); |
893 |
|
|
|
894 |
|
|
awaitTermination(t1); |
895 |
|
|
awaitTermination(t2); |
896 |
|
|
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
897 |
dl |
1.1 |
} |
898 |
|
|
|
899 |
|
|
/** |
900 |
|
|
* getWaitingThreads returns only and all waiting threads |
901 |
|
|
*/ |
902 |
jsr166 |
1.24 |
public void testGetWaitingThreads() { |
903 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
904 |
jsr166 |
1.24 |
final ConditionObject c = sync.newCondition(); |
905 |
|
|
final BooleanLatch acquired1 = new BooleanLatch(); |
906 |
|
|
final BooleanLatch acquired2 = new BooleanLatch(); |
907 |
|
|
final Thread t1 = new Thread(new CheckedRunnable() { |
908 |
jsr166 |
1.10 |
public void realRun() throws InterruptedException { |
909 |
jsr166 |
1.24 |
sync.acquire(); |
910 |
|
|
assertHasWaitersLocked(sync, c, NO_THREADS); |
911 |
jsr166 |
1.17 |
assertTrue(sync.getWaitingThreads(c).isEmpty()); |
912 |
jsr166 |
1.24 |
assertTrue(acquired1.releaseShared(0)); |
913 |
jsr166 |
1.10 |
c.await(); |
914 |
jsr166 |
1.24 |
sync.release(); |
915 |
jsr166 |
1.10 |
}}); |
916 |
|
|
|
917 |
jsr166 |
1.24 |
final Thread t2 = new Thread(new CheckedRunnable() { |
918 |
jsr166 |
1.10 |
public void realRun() throws InterruptedException { |
919 |
jsr166 |
1.24 |
sync.acquire(); |
920 |
|
|
assertHasWaitersLocked(sync, c, t1); |
921 |
|
|
assertTrue(sync.getWaitingThreads(c).contains(t1)); |
922 |
jsr166 |
1.17 |
assertFalse(sync.getWaitingThreads(c).isEmpty()); |
923 |
jsr166 |
1.24 |
assertEquals(1, sync.getWaitingThreads(c).size()); |
924 |
|
|
assertTrue(acquired2.releaseShared(0)); |
925 |
jsr166 |
1.10 |
c.await(); |
926 |
jsr166 |
1.24 |
sync.release(); |
927 |
jsr166 |
1.10 |
}}); |
928 |
dl |
1.1 |
|
929 |
jsr166 |
1.24 |
sync.acquire(); |
930 |
|
|
assertHasWaitersLocked(sync, c, NO_THREADS); |
931 |
|
|
assertFalse(sync.getWaitingThreads(c).contains(t1)); |
932 |
|
|
assertFalse(sync.getWaitingThreads(c).contains(t2)); |
933 |
|
|
assertTrue(sync.getWaitingThreads(c).isEmpty()); |
934 |
|
|
assertEquals(0, sync.getWaitingThreads(c).size()); |
935 |
|
|
sync.release(); |
936 |
dl |
1.1 |
|
937 |
jsr166 |
1.24 |
t1.start(); |
938 |
|
|
acquired1.acquireShared(0); |
939 |
|
|
sync.acquire(); |
940 |
|
|
assertHasWaitersLocked(sync, c, t1); |
941 |
|
|
assertTrue(sync.getWaitingThreads(c).contains(t1)); |
942 |
|
|
assertFalse(sync.getWaitingThreads(c).contains(t2)); |
943 |
|
|
assertFalse(sync.getWaitingThreads(c).isEmpty()); |
944 |
|
|
assertEquals(1, sync.getWaitingThreads(c).size()); |
945 |
|
|
sync.release(); |
946 |
dl |
1.1 |
|
947 |
jsr166 |
1.24 |
t2.start(); |
948 |
|
|
acquired2.acquireShared(0); |
949 |
|
|
sync.acquire(); |
950 |
|
|
assertHasWaitersLocked(sync, c, t1, t2); |
951 |
|
|
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
952 |
|
|
assertTrue(sync.getWaitingThreads(c).contains(t1)); |
953 |
|
|
assertTrue(sync.getWaitingThreads(c).contains(t2)); |
954 |
|
|
assertFalse(sync.getWaitingThreads(c).isEmpty()); |
955 |
|
|
assertEquals(2, sync.getWaitingThreads(c).size()); |
956 |
|
|
c.signalAll(); |
957 |
|
|
assertHasWaitersLocked(sync, c, NO_THREADS); |
958 |
|
|
assertHasExclusiveQueuedThreads(sync, t1, t2); |
959 |
|
|
assertFalse(sync.getWaitingThreads(c).contains(t1)); |
960 |
|
|
assertFalse(sync.getWaitingThreads(c).contains(t2)); |
961 |
|
|
assertTrue(sync.getWaitingThreads(c).isEmpty()); |
962 |
|
|
assertEquals(0, sync.getWaitingThreads(c).size()); |
963 |
|
|
sync.release(); |
964 |
|
|
|
965 |
|
|
awaitTermination(t1); |
966 |
|
|
awaitTermination(t2); |
967 |
|
|
assertHasWaitersUnlocked(sync, c, NO_THREADS); |
968 |
|
|
} |
969 |
dl |
1.1 |
|
970 |
|
|
/** |
971 |
jsr166 |
1.25 |
* awaitUninterruptibly is uninterruptible |
972 |
dl |
1.1 |
*/ |
973 |
jsr166 |
1.24 |
public void testAwaitUninterruptibly() { |
974 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
975 |
jsr166 |
1.38 |
final ConditionObject condition = sync.newCondition(); |
976 |
jsr166 |
1.25 |
final BooleanLatch pleaseInterrupt = new BooleanLatch(); |
977 |
jsr166 |
1.24 |
Thread t = newStartedThread(new CheckedRunnable() { |
978 |
jsr166 |
1.10 |
public void realRun() { |
979 |
jsr166 |
1.24 |
sync.acquire(); |
980 |
jsr166 |
1.25 |
assertTrue(pleaseInterrupt.releaseShared(0)); |
981 |
jsr166 |
1.38 |
condition.awaitUninterruptibly(); |
982 |
jsr166 |
1.24 |
assertTrue(Thread.interrupted()); |
983 |
jsr166 |
1.38 |
assertHasWaitersLocked(sync, condition, NO_THREADS); |
984 |
jsr166 |
1.24 |
sync.release(); |
985 |
jsr166 |
1.10 |
}}); |
986 |
dl |
1.1 |
|
987 |
jsr166 |
1.25 |
pleaseInterrupt.acquireShared(0); |
988 |
jsr166 |
1.24 |
sync.acquire(); |
989 |
jsr166 |
1.38 |
assertHasWaitersLocked(sync, condition, t); |
990 |
jsr166 |
1.24 |
sync.release(); |
991 |
jsr166 |
1.9 |
t.interrupt(); |
992 |
jsr166 |
1.38 |
assertHasWaitersUnlocked(sync, condition, t); |
993 |
|
|
assertThreadBlocks(t, Thread.State.WAITING); |
994 |
jsr166 |
1.24 |
sync.acquire(); |
995 |
jsr166 |
1.38 |
assertHasWaitersLocked(sync, condition, t); |
996 |
jsr166 |
1.24 |
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
997 |
jsr166 |
1.38 |
condition.signal(); |
998 |
|
|
assertHasWaitersLocked(sync, condition, NO_THREADS); |
999 |
jsr166 |
1.24 |
assertHasExclusiveQueuedThreads(sync, t); |
1000 |
|
|
sync.release(); |
1001 |
|
|
awaitTermination(t); |
1002 |
dl |
1.1 |
} |
1003 |
|
|
|
1004 |
|
|
/** |
1005 |
jsr166 |
1.24 |
* await/awaitNanos/awaitUntil is interruptible |
1006 |
dl |
1.1 |
*/ |
1007 |
jsr166 |
1.24 |
public void testInterruptible_await() { testInterruptible(AwaitMethod.await); } |
1008 |
|
|
public void testInterruptible_awaitTimed() { testInterruptible(AwaitMethod.awaitTimed); } |
1009 |
|
|
public void testInterruptible_awaitNanos() { testInterruptible(AwaitMethod.awaitNanos); } |
1010 |
|
|
public void testInterruptible_awaitUntil() { testInterruptible(AwaitMethod.awaitUntil); } |
1011 |
|
|
public void testInterruptible(final AwaitMethod awaitMethod) { |
1012 |
jsr166 |
1.11 |
final Mutex sync = new Mutex(); |
1013 |
jsr166 |
1.24 |
final ConditionObject c = sync.newCondition(); |
1014 |
jsr166 |
1.25 |
final BooleanLatch pleaseInterrupt = new BooleanLatch(); |
1015 |
jsr166 |
1.24 |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
1016 |
jsr166 |
1.11 |
public void realRun() throws InterruptedException { |
1017 |
jsr166 |
1.24 |
sync.acquire(); |
1018 |
jsr166 |
1.25 |
assertTrue(pleaseInterrupt.releaseShared(0)); |
1019 |
jsr166 |
1.24 |
await(c, awaitMethod); |
1020 |
jsr166 |
1.10 |
}}); |
1021 |
dl |
1.1 |
|
1022 |
jsr166 |
1.25 |
pleaseInterrupt.acquireShared(0); |
1023 |
jsr166 |
1.9 |
t.interrupt(); |
1024 |
jsr166 |
1.24 |
awaitTermination(t); |
1025 |
dl |
1.1 |
} |
1026 |
|
|
|
1027 |
|
|
/** |
1028 |
|
|
* signalAll wakes up all threads |
1029 |
|
|
*/ |
1030 |
jsr166 |
1.24 |
public void testSignalAll_await() { testSignalAll(AwaitMethod.await); } |
1031 |
|
|
public void testSignalAll_awaitTimed() { testSignalAll(AwaitMethod.awaitTimed); } |
1032 |
|
|
public void testSignalAll_awaitNanos() { testSignalAll(AwaitMethod.awaitNanos); } |
1033 |
|
|
public void testSignalAll_awaitUntil() { testSignalAll(AwaitMethod.awaitUntil); } |
1034 |
|
|
public void testSignalAll(final AwaitMethod awaitMethod) { |
1035 |
|
|
final Mutex sync = new Mutex(); |
1036 |
|
|
final ConditionObject c = sync.newCondition(); |
1037 |
|
|
final BooleanLatch acquired1 = new BooleanLatch(); |
1038 |
|
|
final BooleanLatch acquired2 = new BooleanLatch(); |
1039 |
|
|
Thread t1 = newStartedThread(new CheckedRunnable() { |
1040 |
jsr166 |
1.10 |
public void realRun() throws InterruptedException { |
1041 |
jsr166 |
1.24 |
sync.acquire(); |
1042 |
|
|
acquired1.releaseShared(0); |
1043 |
|
|
await(c, awaitMethod); |
1044 |
|
|
sync.release(); |
1045 |
jsr166 |
1.10 |
}}); |
1046 |
|
|
|
1047 |
jsr166 |
1.24 |
Thread t2 = newStartedThread(new CheckedRunnable() { |
1048 |
jsr166 |
1.10 |
public void realRun() throws InterruptedException { |
1049 |
jsr166 |
1.24 |
sync.acquire(); |
1050 |
|
|
acquired2.releaseShared(0); |
1051 |
|
|
await(c, awaitMethod); |
1052 |
|
|
sync.release(); |
1053 |
jsr166 |
1.10 |
}}); |
1054 |
dl |
1.1 |
|
1055 |
jsr166 |
1.24 |
acquired1.acquireShared(0); |
1056 |
|
|
acquired2.acquireShared(0); |
1057 |
|
|
sync.acquire(); |
1058 |
|
|
assertHasWaitersLocked(sync, c, t1, t2); |
1059 |
|
|
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
1060 |
jsr166 |
1.9 |
c.signalAll(); |
1061 |
jsr166 |
1.24 |
assertHasWaitersLocked(sync, c, NO_THREADS); |
1062 |
|
|
assertHasExclusiveQueuedThreads(sync, t1, t2); |
1063 |
|
|
sync.release(); |
1064 |
|
|
awaitTermination(t1); |
1065 |
|
|
awaitTermination(t2); |
1066 |
dl |
1.1 |
} |
1067 |
|
|
|
1068 |
|
|
/** |
1069 |
|
|
* toString indicates current state |
1070 |
|
|
*/ |
1071 |
|
|
public void testToString() { |
1072 |
|
|
Mutex sync = new Mutex(); |
1073 |
jsr166 |
1.24 |
assertTrue(sync.toString().contains("State = " + Mutex.UNLOCKED)); |
1074 |
|
|
sync.acquire(); |
1075 |
|
|
assertTrue(sync.toString().contains("State = " + Mutex.LOCKED)); |
1076 |
dl |
1.1 |
} |
1077 |
|
|
|
1078 |
|
|
/** |
1079 |
jsr166 |
1.24 |
* A serialized AQS deserializes with current state, but no queued threads |
1080 |
|
|
*/ |
1081 |
|
|
public void testSerialization() { |
1082 |
|
|
Mutex sync = new Mutex(); |
1083 |
|
|
assertFalse(serialClone(sync).isHeldExclusively()); |
1084 |
|
|
sync.acquire(); |
1085 |
|
|
Thread t = newStartedThread(new InterruptedSyncRunnable(sync)); |
1086 |
|
|
waitForQueuedThread(sync, t); |
1087 |
|
|
assertTrue(sync.isHeldExclusively()); |
1088 |
|
|
|
1089 |
|
|
Mutex clone = serialClone(sync); |
1090 |
|
|
assertTrue(clone.isHeldExclusively()); |
1091 |
|
|
assertHasExclusiveQueuedThreads(sync, t); |
1092 |
|
|
assertHasExclusiveQueuedThreads(clone, NO_THREADS); |
1093 |
|
|
t.interrupt(); |
1094 |
|
|
awaitTermination(t); |
1095 |
|
|
sync.release(); |
1096 |
|
|
assertFalse(sync.isHeldExclusively()); |
1097 |
|
|
assertTrue(clone.isHeldExclusively()); |
1098 |
|
|
assertHasExclusiveQueuedThreads(sync, NO_THREADS); |
1099 |
|
|
assertHasExclusiveQueuedThreads(clone, NO_THREADS); |
1100 |
dl |
1.1 |
} |
1101 |
|
|
|
1102 |
|
|
/** |
1103 |
|
|
* tryReleaseShared setting state changes getState |
1104 |
|
|
*/ |
1105 |
|
|
public void testGetStateWithReleaseShared() { |
1106 |
jsr166 |
1.11 |
final BooleanLatch l = new BooleanLatch(); |
1107 |
|
|
assertFalse(l.isSignalled()); |
1108 |
jsr166 |
1.24 |
assertTrue(l.releaseShared(0)); |
1109 |
jsr166 |
1.11 |
assertTrue(l.isSignalled()); |
1110 |
dl |
1.1 |
} |
1111 |
|
|
|
1112 |
|
|
/** |
1113 |
|
|
* releaseShared has no effect when already signalled |
1114 |
|
|
*/ |
1115 |
|
|
public void testReleaseShared() { |
1116 |
jsr166 |
1.11 |
final BooleanLatch l = new BooleanLatch(); |
1117 |
|
|
assertFalse(l.isSignalled()); |
1118 |
jsr166 |
1.24 |
assertTrue(l.releaseShared(0)); |
1119 |
jsr166 |
1.11 |
assertTrue(l.isSignalled()); |
1120 |
jsr166 |
1.24 |
assertTrue(l.releaseShared(0)); |
1121 |
jsr166 |
1.11 |
assertTrue(l.isSignalled()); |
1122 |
dl |
1.1 |
} |
1123 |
|
|
|
1124 |
|
|
/** |
1125 |
|
|
* acquireSharedInterruptibly returns after release, but not before |
1126 |
|
|
*/ |
1127 |
jsr166 |
1.24 |
public void testAcquireSharedInterruptibly() { |
1128 |
jsr166 |
1.11 |
final BooleanLatch l = new BooleanLatch(); |
1129 |
dl |
1.1 |
|
1130 |
jsr166 |
1.24 |
Thread t = newStartedThread(new CheckedRunnable() { |
1131 |
jsr166 |
1.10 |
public void realRun() throws InterruptedException { |
1132 |
jsr166 |
1.17 |
assertFalse(l.isSignalled()); |
1133 |
jsr166 |
1.10 |
l.acquireSharedInterruptibly(0); |
1134 |
jsr166 |
1.17 |
assertTrue(l.isSignalled()); |
1135 |
jsr166 |
1.24 |
l.acquireSharedInterruptibly(0); |
1136 |
|
|
assertTrue(l.isSignalled()); |
1137 |
jsr166 |
1.10 |
}}); |
1138 |
jsr166 |
1.9 |
|
1139 |
jsr166 |
1.24 |
waitForQueuedThread(l, t); |
1140 |
jsr166 |
1.9 |
assertFalse(l.isSignalled()); |
1141 |
jsr166 |
1.39 |
assertThreadBlocks(t, Thread.State.WAITING); |
1142 |
jsr166 |
1.24 |
assertHasSharedQueuedThreads(l, t); |
1143 |
|
|
assertTrue(l.releaseShared(0)); |
1144 |
jsr166 |
1.9 |
assertTrue(l.isSignalled()); |
1145 |
jsr166 |
1.24 |
awaitTermination(t); |
1146 |
dl |
1.1 |
} |
1147 |
jsr166 |
1.5 |
|
1148 |
dl |
1.1 |
/** |
1149 |
jsr166 |
1.24 |
* tryAcquireSharedNanos returns after release, but not before |
1150 |
dl |
1.1 |
*/ |
1151 |
jsr166 |
1.24 |
public void testTryAcquireSharedNanos() { |
1152 |
jsr166 |
1.11 |
final BooleanLatch l = new BooleanLatch(); |
1153 |
dl |
1.1 |
|
1154 |
jsr166 |
1.24 |
Thread t = newStartedThread(new CheckedRunnable() { |
1155 |
jsr166 |
1.10 |
public void realRun() throws InterruptedException { |
1156 |
jsr166 |
1.15 |
assertFalse(l.isSignalled()); |
1157 |
jsr166 |
1.24 |
long nanos = MILLISECONDS.toNanos(2 * LONG_DELAY_MS); |
1158 |
|
|
assertTrue(l.tryAcquireSharedNanos(0, nanos)); |
1159 |
|
|
assertTrue(l.isSignalled()); |
1160 |
jsr166 |
1.15 |
assertTrue(l.tryAcquireSharedNanos(0, nanos)); |
1161 |
|
|
assertTrue(l.isSignalled()); |
1162 |
jsr166 |
1.10 |
}}); |
1163 |
jsr166 |
1.9 |
|
1164 |
jsr166 |
1.24 |
waitForQueuedThread(l, t); |
1165 |
jsr166 |
1.9 |
assertFalse(l.isSignalled()); |
1166 |
jsr166 |
1.40 |
assertThreadBlocks(t, Thread.State.TIMED_WAITING); |
1167 |
jsr166 |
1.24 |
assertTrue(l.releaseShared(0)); |
1168 |
jsr166 |
1.9 |
assertTrue(l.isSignalled()); |
1169 |
jsr166 |
1.24 |
awaitTermination(t); |
1170 |
dl |
1.1 |
} |
1171 |
jsr166 |
1.5 |
|
1172 |
dl |
1.1 |
/** |
1173 |
jsr166 |
1.24 |
* acquireSharedInterruptibly is interruptible |
1174 |
dl |
1.1 |
*/ |
1175 |
jsr166 |
1.24 |
public void testAcquireSharedInterruptibly_Interruptible() { |
1176 |
dl |
1.1 |
final BooleanLatch l = new BooleanLatch(); |
1177 |
jsr166 |
1.24 |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
1178 |
jsr166 |
1.11 |
public void realRun() throws InterruptedException { |
1179 |
jsr166 |
1.17 |
assertFalse(l.isSignalled()); |
1180 |
jsr166 |
1.10 |
l.acquireSharedInterruptibly(0); |
1181 |
|
|
}}); |
1182 |
jsr166 |
1.9 |
|
1183 |
jsr166 |
1.24 |
waitForQueuedThread(l, t); |
1184 |
jsr166 |
1.9 |
assertFalse(l.isSignalled()); |
1185 |
|
|
t.interrupt(); |
1186 |
jsr166 |
1.24 |
awaitTermination(t); |
1187 |
|
|
assertFalse(l.isSignalled()); |
1188 |
dl |
1.1 |
} |
1189 |
|
|
|
1190 |
|
|
/** |
1191 |
jsr166 |
1.24 |
* tryAcquireSharedNanos is interruptible |
1192 |
dl |
1.1 |
*/ |
1193 |
jsr166 |
1.24 |
public void testTryAcquireSharedNanos_Interruptible() { |
1194 |
dl |
1.1 |
final BooleanLatch l = new BooleanLatch(); |
1195 |
jsr166 |
1.24 |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
1196 |
jsr166 |
1.11 |
public void realRun() throws InterruptedException { |
1197 |
jsr166 |
1.15 |
assertFalse(l.isSignalled()); |
1198 |
jsr166 |
1.24 |
long nanos = MILLISECONDS.toNanos(2 * LONG_DELAY_MS); |
1199 |
jsr166 |
1.15 |
l.tryAcquireSharedNanos(0, nanos); |
1200 |
jsr166 |
1.10 |
}}); |
1201 |
jsr166 |
1.9 |
|
1202 |
jsr166 |
1.24 |
waitForQueuedThread(l, t); |
1203 |
jsr166 |
1.9 |
assertFalse(l.isSignalled()); |
1204 |
|
|
t.interrupt(); |
1205 |
jsr166 |
1.24 |
awaitTermination(t); |
1206 |
|
|
assertFalse(l.isSignalled()); |
1207 |
dl |
1.1 |
} |
1208 |
|
|
|
1209 |
|
|
/** |
1210 |
jsr166 |
1.24 |
* tryAcquireSharedNanos times out if not released before timeout |
1211 |
dl |
1.1 |
*/ |
1212 |
jsr166 |
1.24 |
public void testTryAcquireSharedNanos_Timeout() { |
1213 |
dl |
1.1 |
final BooleanLatch l = new BooleanLatch(); |
1214 |
jsr166 |
1.27 |
final BooleanLatch observedQueued = new BooleanLatch(); |
1215 |
jsr166 |
1.24 |
Thread t = newStartedThread(new CheckedRunnable() { |
1216 |
jsr166 |
1.10 |
public void realRun() throws InterruptedException { |
1217 |
jsr166 |
1.15 |
assertFalse(l.isSignalled()); |
1218 |
jsr166 |
1.27 |
for (long millis = timeoutMillis(); |
1219 |
|
|
!observedQueued.isSignalled(); |
1220 |
|
|
millis *= 2) { |
1221 |
|
|
long nanos = MILLISECONDS.toNanos(millis); |
1222 |
|
|
long startTime = System.nanoTime(); |
1223 |
|
|
assertFalse(l.tryAcquireSharedNanos(0, nanos)); |
1224 |
|
|
assertTrue(millisElapsedSince(startTime) >= millis); |
1225 |
|
|
} |
1226 |
jsr166 |
1.24 |
assertFalse(l.isSignalled()); |
1227 |
jsr166 |
1.10 |
}}); |
1228 |
jsr166 |
1.9 |
|
1229 |
jsr166 |
1.24 |
waitForQueuedThread(l, t); |
1230 |
jsr166 |
1.27 |
observedQueued.releaseShared(0); |
1231 |
jsr166 |
1.24 |
assertFalse(l.isSignalled()); |
1232 |
|
|
awaitTermination(t); |
1233 |
jsr166 |
1.9 |
assertFalse(l.isSignalled()); |
1234 |
dl |
1.1 |
} |
1235 |
|
|
|
1236 |
jsr166 |
1.28 |
/** |
1237 |
|
|
* awaitNanos/timed await with 0 wait times out immediately |
1238 |
|
|
*/ |
1239 |
|
|
public void testAwait_Zero() throws InterruptedException { |
1240 |
|
|
final Mutex sync = new Mutex(); |
1241 |
|
|
final ConditionObject c = sync.newCondition(); |
1242 |
|
|
sync.acquire(); |
1243 |
|
|
assertTrue(c.awaitNanos(0L) <= 0); |
1244 |
|
|
assertFalse(c.await(0L, NANOSECONDS)); |
1245 |
|
|
sync.release(); |
1246 |
|
|
} |
1247 |
|
|
|
1248 |
|
|
/** |
1249 |
|
|
* awaitNanos/timed await with maximum negative wait times does not underflow |
1250 |
|
|
*/ |
1251 |
|
|
public void testAwait_NegativeInfinity() throws InterruptedException { |
1252 |
|
|
final Mutex sync = new Mutex(); |
1253 |
|
|
final ConditionObject c = sync.newCondition(); |
1254 |
|
|
sync.acquire(); |
1255 |
|
|
assertTrue(c.awaitNanos(Long.MIN_VALUE) <= 0); |
1256 |
|
|
assertFalse(c.await(Long.MIN_VALUE, NANOSECONDS)); |
1257 |
|
|
sync.release(); |
1258 |
|
|
} |
1259 |
|
|
|
1260 |
jsr166 |
1.43 |
/** |
1261 |
|
|
* Tests scenario for |
1262 |
|
|
* JDK-8191937: Lost interrupt in AbstractQueuedSynchronizer when tryAcquire methods throw |
1263 |
|
|
*/ |
1264 |
|
|
public void testInterruptedFailingAcquire() throws InterruptedException { |
1265 |
|
|
final RuntimeException ex = new RuntimeException(); |
1266 |
|
|
|
1267 |
|
|
// A synchronizer only offering a choice of failure modes |
1268 |
|
|
class Sync extends AbstractQueuedLongSynchronizer { |
1269 |
|
|
boolean pleaseThrow; |
1270 |
|
|
@Override protected boolean tryAcquire(long ignored) { |
1271 |
|
|
if (pleaseThrow) throw ex; |
1272 |
|
|
return false; |
1273 |
|
|
} |
1274 |
|
|
@Override protected long tryAcquireShared(long ignored) { |
1275 |
|
|
if (pleaseThrow) throw ex; |
1276 |
|
|
return -1; |
1277 |
|
|
} |
1278 |
|
|
@Override protected boolean tryRelease(long ignored) { |
1279 |
|
|
return true; |
1280 |
|
|
} |
1281 |
|
|
@Override protected boolean tryReleaseShared(long ignored) { |
1282 |
|
|
return true; |
1283 |
|
|
} |
1284 |
|
|
} |
1285 |
|
|
|
1286 |
|
|
final Sync s = new Sync(); |
1287 |
|
|
|
1288 |
|
|
final Thread thread = newStartedThread(new CheckedRunnable() { |
1289 |
|
|
public void realRun() { |
1290 |
|
|
try { |
1291 |
|
|
if (ThreadLocalRandom.current().nextBoolean()) |
1292 |
|
|
s.acquire(1); |
1293 |
|
|
else |
1294 |
|
|
s.acquireShared(1); |
1295 |
|
|
shouldThrow(); |
1296 |
|
|
} catch (Throwable t) { |
1297 |
|
|
assertSame(ex, t); |
1298 |
|
|
assertTrue(Thread.interrupted()); |
1299 |
|
|
} |
1300 |
|
|
}}); |
1301 |
|
|
waitForThreadToEnterWaitState(thread); |
1302 |
|
|
assertSame(thread, s.getFirstQueuedThread()); |
1303 |
|
|
assertTrue(s.hasQueuedPredecessors()); |
1304 |
|
|
assertTrue(s.hasQueuedThreads()); |
1305 |
|
|
assertEquals(1, s.getQueueLength()); |
1306 |
|
|
|
1307 |
|
|
s.pleaseThrow = true; |
1308 |
|
|
thread.interrupt(); |
1309 |
|
|
s.release(1); |
1310 |
|
|
awaitTermination(thread); |
1311 |
|
|
} |
1312 |
|
|
|
1313 |
dl |
1.1 |
} |