4 |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
5 |
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*/ |
6 |
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|
7 |
– |
import junit.framework.*; |
8 |
– |
import java.util.*; |
9 |
– |
import java.util.concurrent.*; |
7 |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
8 |
< |
import java.util.concurrent.atomic.*; |
8 |
> |
|
9 |
> |
import java.util.ArrayList; |
10 |
> |
import java.util.List; |
11 |
> |
import java.util.concurrent.BlockingQueue; |
12 |
> |
import java.util.concurrent.Callable; |
13 |
> |
import java.util.concurrent.CancellationException; |
14 |
> |
import java.util.concurrent.CountDownLatch; |
15 |
> |
import java.util.concurrent.Delayed; |
16 |
> |
import java.util.concurrent.ExecutionException; |
17 |
> |
import java.util.concurrent.Executors; |
18 |
> |
import java.util.concurrent.ExecutorService; |
19 |
> |
import java.util.concurrent.Future; |
20 |
> |
import java.util.concurrent.RejectedExecutionException; |
21 |
> |
import java.util.concurrent.RejectedExecutionHandler; |
22 |
> |
import java.util.concurrent.RunnableScheduledFuture; |
23 |
> |
import java.util.concurrent.ScheduledFuture; |
24 |
> |
import java.util.concurrent.ScheduledThreadPoolExecutor; |
25 |
> |
import java.util.concurrent.ThreadFactory; |
26 |
> |
import java.util.concurrent.ThreadPoolExecutor; |
27 |
> |
import java.util.concurrent.TimeoutException; |
28 |
> |
import java.util.concurrent.TimeUnit; |
29 |
> |
import java.util.concurrent.atomic.AtomicInteger; |
30 |
> |
|
31 |
> |
import junit.framework.Test; |
32 |
> |
import junit.framework.TestSuite; |
33 |
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|
34 |
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public class ScheduledExecutorSubclassTest extends JSR166TestCase { |
35 |
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public static void main(String[] args) { |
36 |
< |
junit.textui.TestRunner.run(suite()); |
36 |
> |
main(suite(), args); |
37 |
|
} |
38 |
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public static Test suite() { |
39 |
|
return new TestSuite(ScheduledExecutorSubclassTest.class); |
57 |
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} |
58 |
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public boolean isCancelled() { return task.isCancelled(); } |
59 |
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public boolean isDone() { return task.isDone(); } |
60 |
< |
public V get() throws InterruptedException, ExecutionException { |
60 |
> |
public V get() throws InterruptedException, ExecutionException { |
61 |
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V v = task.get(); |
62 |
|
assertTrue(ran); |
63 |
|
return v; |
64 |
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} |
65 |
< |
public V get(long time, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException { |
65 |
> |
public V get(long time, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException { |
66 |
|
V v = task.get(time, unit); |
67 |
|
assertTrue(ran); |
68 |
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return v; |
69 |
|
} |
70 |
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} |
71 |
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|
51 |
– |
|
72 |
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public class CustomExecutor extends ScheduledThreadPoolExecutor { |
73 |
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|
74 |
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protected <V> RunnableScheduledFuture<V> decorateTask(Runnable r, RunnableScheduledFuture<V> task) { |
78 |
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protected <V> RunnableScheduledFuture<V> decorateTask(Callable<V> c, RunnableScheduledFuture<V> task) { |
79 |
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return new CustomTask<V>(task); |
80 |
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} |
81 |
< |
CustomExecutor(int corePoolSize) { super(corePoolSize);} |
81 |
> |
CustomExecutor(int corePoolSize) { super(corePoolSize); } |
82 |
|
CustomExecutor(int corePoolSize, RejectedExecutionHandler handler) { |
83 |
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super(corePoolSize, handler); |
84 |
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} |
93 |
|
|
94 |
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} |
95 |
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|
76 |
– |
|
96 |
|
/** |
97 |
|
* execute successfully executes a runnable |
98 |
|
*/ |
111 |
|
} |
112 |
|
} |
113 |
|
|
95 |
– |
|
114 |
|
/** |
115 |
|
* delayed schedule of callable successfully executes after delay |
116 |
|
*/ |
117 |
|
public void testSchedule1() throws Exception { |
118 |
|
CustomExecutor p = new CustomExecutor(1); |
119 |
< |
final long t0 = System.nanoTime(); |
102 |
< |
final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L; |
119 |
> |
final long startTime = System.nanoTime(); |
120 |
|
final CountDownLatch done = new CountDownLatch(1); |
121 |
|
try { |
122 |
|
Callable task = new CheckedCallable<Boolean>() { |
123 |
|
public Boolean realCall() { |
124 |
|
done.countDown(); |
125 |
< |
assertTrue(System.nanoTime() - t0 >= timeoutNanos); |
125 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
126 |
|
return Boolean.TRUE; |
127 |
|
}}; |
128 |
< |
Future f = p.schedule(task, SHORT_DELAY_MS, MILLISECONDS); |
129 |
< |
assertEquals(Boolean.TRUE, f.get()); |
130 |
< |
assertTrue(System.nanoTime() - t0 >= timeoutNanos); |
128 |
> |
Future f = p.schedule(task, timeoutMillis(), MILLISECONDS); |
129 |
> |
assertSame(Boolean.TRUE, f.get()); |
130 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
131 |
|
assertTrue(done.await(0L, MILLISECONDS)); |
132 |
|
} finally { |
133 |
|
joinPool(p); |
139 |
|
*/ |
140 |
|
public void testSchedule3() throws Exception { |
141 |
|
CustomExecutor p = new CustomExecutor(1); |
142 |
< |
final long t0 = System.nanoTime(); |
126 |
< |
final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L; |
142 |
> |
final long startTime = System.nanoTime(); |
143 |
|
final CountDownLatch done = new CountDownLatch(1); |
144 |
|
try { |
145 |
|
Runnable task = new CheckedRunnable() { |
146 |
|
public void realRun() { |
147 |
|
done.countDown(); |
148 |
< |
assertTrue(System.nanoTime() - t0 >= timeoutNanos); |
148 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
149 |
|
}}; |
150 |
< |
Future f = p.schedule(task, SHORT_DELAY_MS, MILLISECONDS); |
151 |
< |
assertNull(f.get()); |
152 |
< |
assertTrue(System.nanoTime() - t0 >= timeoutNanos); |
153 |
< |
assertTrue(done.await(0L, MILLISECONDS)); |
150 |
> |
Future f = p.schedule(task, timeoutMillis(), MILLISECONDS); |
151 |
> |
await(done); |
152 |
> |
assertNull(f.get(LONG_DELAY_MS, MILLISECONDS)); |
153 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
154 |
|
} finally { |
155 |
|
joinPool(p); |
156 |
|
} |
161 |
|
*/ |
162 |
|
public void testSchedule4() throws InterruptedException { |
163 |
|
CustomExecutor p = new CustomExecutor(1); |
164 |
< |
final long t0 = System.nanoTime(); |
149 |
< |
final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L; |
164 |
> |
final long startTime = System.nanoTime(); |
165 |
|
final CountDownLatch done = new CountDownLatch(1); |
166 |
|
try { |
167 |
|
Runnable task = new CheckedRunnable() { |
168 |
|
public void realRun() { |
169 |
|
done.countDown(); |
170 |
< |
assertTrue(System.nanoTime() - t0 >= timeoutNanos); |
170 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
171 |
|
}}; |
172 |
|
ScheduledFuture f = |
173 |
< |
p.scheduleAtFixedRate(task, SHORT_DELAY_MS, |
174 |
< |
SHORT_DELAY_MS, MILLISECONDS); |
175 |
< |
assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS)); |
176 |
< |
assertTrue(System.nanoTime() - t0 >= timeoutNanos); |
173 |
> |
p.scheduleAtFixedRate(task, timeoutMillis(), |
174 |
> |
LONG_DELAY_MS, MILLISECONDS); |
175 |
> |
await(done); |
176 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
177 |
|
f.cancel(true); |
178 |
|
} finally { |
179 |
|
joinPool(p); |
185 |
|
*/ |
186 |
|
public void testSchedule5() throws InterruptedException { |
187 |
|
CustomExecutor p = new CustomExecutor(1); |
188 |
< |
final long t0 = System.nanoTime(); |
174 |
< |
final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L; |
188 |
> |
final long startTime = System.nanoTime(); |
189 |
|
final CountDownLatch done = new CountDownLatch(1); |
190 |
|
try { |
191 |
|
Runnable task = new CheckedRunnable() { |
192 |
|
public void realRun() { |
193 |
|
done.countDown(); |
194 |
< |
assertTrue(System.nanoTime() - t0 >= timeoutNanos); |
194 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
195 |
|
}}; |
196 |
|
ScheduledFuture f = |
197 |
< |
p.scheduleWithFixedDelay(task, SHORT_DELAY_MS, |
198 |
< |
SHORT_DELAY_MS, MILLISECONDS); |
199 |
< |
assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS)); |
200 |
< |
assertTrue(System.nanoTime() - t0 >= timeoutNanos); |
197 |
> |
p.scheduleWithFixedDelay(task, timeoutMillis(), |
198 |
> |
LONG_DELAY_MS, MILLISECONDS); |
199 |
> |
await(done); |
200 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
201 |
|
f.cancel(true); |
202 |
|
} finally { |
203 |
|
joinPool(p); |
214 |
|
*/ |
215 |
|
public void testFixedRateSequence() throws InterruptedException { |
216 |
|
CustomExecutor p = new CustomExecutor(1); |
217 |
< |
RunnableCounter counter = new RunnableCounter(); |
218 |
< |
ScheduledFuture h = |
219 |
< |
p.scheduleAtFixedRate(counter, 0, 1, MILLISECONDS); |
220 |
< |
delay(SMALL_DELAY_MS); |
221 |
< |
h.cancel(true); |
222 |
< |
int c = counter.count.get(); |
223 |
< |
// By time scaling conventions, we must have at least |
224 |
< |
// an execution per SHORT delay, but no more than one SHORT more |
225 |
< |
assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS); |
226 |
< |
assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS); |
227 |
< |
joinPool(p); |
217 |
> |
try { |
218 |
> |
for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) { |
219 |
> |
long startTime = System.nanoTime(); |
220 |
> |
int cycles = 10; |
221 |
> |
final CountDownLatch done = new CountDownLatch(cycles); |
222 |
> |
Runnable task = new CheckedRunnable() { |
223 |
> |
public void realRun() { done.countDown(); }}; |
224 |
> |
ScheduledFuture h = |
225 |
> |
p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS); |
226 |
> |
done.await(); |
227 |
> |
h.cancel(true); |
228 |
> |
double normalizedTime = |
229 |
> |
(double) millisElapsedSince(startTime) / delay; |
230 |
> |
if (normalizedTime >= cycles - 1 && |
231 |
> |
normalizedTime <= cycles) |
232 |
> |
return; |
233 |
> |
} |
234 |
> |
throw new AssertionError("unexpected execution rate"); |
235 |
> |
} finally { |
236 |
> |
joinPool(p); |
237 |
> |
} |
238 |
|
} |
239 |
|
|
240 |
|
/** |
242 |
|
*/ |
243 |
|
public void testFixedDelaySequence() throws InterruptedException { |
244 |
|
CustomExecutor p = new CustomExecutor(1); |
245 |
< |
RunnableCounter counter = new RunnableCounter(); |
246 |
< |
ScheduledFuture h = |
247 |
< |
p.scheduleWithFixedDelay(counter, 0, 1, MILLISECONDS); |
248 |
< |
delay(SMALL_DELAY_MS); |
249 |
< |
h.cancel(true); |
250 |
< |
int c = counter.count.get(); |
251 |
< |
assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS); |
252 |
< |
assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS); |
253 |
< |
joinPool(p); |
245 |
> |
try { |
246 |
> |
for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) { |
247 |
> |
long startTime = System.nanoTime(); |
248 |
> |
int cycles = 10; |
249 |
> |
final CountDownLatch done = new CountDownLatch(cycles); |
250 |
> |
Runnable task = new CheckedRunnable() { |
251 |
> |
public void realRun() { done.countDown(); }}; |
252 |
> |
ScheduledFuture h = |
253 |
> |
p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS); |
254 |
> |
done.await(); |
255 |
> |
h.cancel(true); |
256 |
> |
double normalizedTime = |
257 |
> |
(double) millisElapsedSince(startTime) / delay; |
258 |
> |
if (normalizedTime >= cycles - 1 && |
259 |
> |
normalizedTime <= cycles) |
260 |
> |
return; |
261 |
> |
} |
262 |
> |
throw new AssertionError("unexpected execution rate"); |
263 |
> |
} finally { |
264 |
> |
joinPool(p); |
265 |
> |
} |
266 |
|
} |
267 |
|
|
232 |
– |
|
268 |
|
/** |
269 |
|
* execute(null) throws NPE |
270 |
|
*/ |
413 |
|
threadProceed.await(); |
414 |
|
threadDone.countDown(); |
415 |
|
}}); |
416 |
< |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
416 |
> |
await(threadStarted); |
417 |
|
assertEquals(0, p.getCompletedTaskCount()); |
418 |
|
threadProceed.countDown(); |
419 |
|
threadDone.await(); |
420 |
< |
delay(SHORT_DELAY_MS); |
421 |
< |
assertEquals(1, p.getCompletedTaskCount()); |
420 |
> |
long startTime = System.nanoTime(); |
421 |
> |
while (p.getCompletedTaskCount() != 1) { |
422 |
> |
if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
423 |
> |
fail("timed out"); |
424 |
> |
Thread.yield(); |
425 |
> |
} |
426 |
|
} finally { |
427 |
|
joinPool(p); |
428 |
|
} |
562 |
|
assertTrue(p.isShutdown()); |
563 |
|
} |
564 |
|
|
526 |
– |
|
565 |
|
/** |
566 |
|
* isTerminated is false before termination, true after |
567 |
|
*/ |
752 |
|
} |
753 |
|
} |
754 |
|
|
717 |
– |
|
755 |
|
/** |
756 |
|
* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false, |
757 |
|
* delayed tasks are cancelled at shutdown |
778 |
|
} |
779 |
|
} |
780 |
|
|
744 |
– |
|
781 |
|
/** |
782 |
|
* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false, |
783 |
|
* periodic tasks are cancelled at shutdown |
789 |
|
p.setContinueExistingPeriodicTasksAfterShutdownPolicy(false); |
790 |
|
assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
791 |
|
assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
792 |
+ |
long initialDelay = LONG_DELAY_MS; |
793 |
|
ScheduledFuture task = |
794 |
< |
p.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, MILLISECONDS); |
794 |
> |
p.scheduleAtFixedRate(new NoOpRunnable(), initialDelay, |
795 |
> |
5, MILLISECONDS); |
796 |
|
try { p.shutdown(); } catch (SecurityException ok) { return; } |
797 |
|
assertTrue(p.isShutdown()); |
760 |
– |
BlockingQueue q = p.getQueue(); |
798 |
|
assertTrue(p.getQueue().isEmpty()); |
799 |
|
assertTrue(task.isDone()); |
800 |
|
assertTrue(task.isCancelled()); |
801 |
< |
assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS)); |
765 |
< |
assertTrue(p.isTerminated()); |
801 |
> |
joinPool(p); |
802 |
|
} |
803 |
|
|
804 |
|
/** |
1241 |
|
public void testTimedInvokeAll6() throws Exception { |
1242 |
|
ExecutorService e = new CustomExecutor(2); |
1243 |
|
try { |
1244 |
< |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1245 |
< |
l.add(new StringTask()); |
1246 |
< |
l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING)); |
1247 |
< |
l.add(new StringTask()); |
1248 |
< |
List<Future<String>> futures = |
1249 |
< |
e.invokeAll(l, SHORT_DELAY_MS, MILLISECONDS); |
1250 |
< |
assertEquals(3, futures.size()); |
1251 |
< |
Iterator<Future<String>> it = futures.iterator(); |
1252 |
< |
Future<String> f1 = it.next(); |
1253 |
< |
Future<String> f2 = it.next(); |
1254 |
< |
Future<String> f3 = it.next(); |
1255 |
< |
assertTrue(f1.isDone()); |
1256 |
< |
assertTrue(f2.isDone()); |
1257 |
< |
assertTrue(f3.isDone()); |
1258 |
< |
assertFalse(f1.isCancelled()); |
1259 |
< |
assertTrue(f2.isCancelled()); |
1244 |
> |
for (long timeout = timeoutMillis();;) { |
1245 |
> |
List<Callable<String>> tasks = new ArrayList<>(); |
1246 |
> |
tasks.add(new StringTask("0")); |
1247 |
> |
tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING)); |
1248 |
> |
tasks.add(new StringTask("2")); |
1249 |
> |
long startTime = System.nanoTime(); |
1250 |
> |
List<Future<String>> futures = |
1251 |
> |
e.invokeAll(tasks, timeout, MILLISECONDS); |
1252 |
> |
assertEquals(tasks.size(), futures.size()); |
1253 |
> |
assertTrue(millisElapsedSince(startTime) >= timeout); |
1254 |
> |
for (Future future : futures) |
1255 |
> |
assertTrue(future.isDone()); |
1256 |
> |
assertTrue(futures.get(1).isCancelled()); |
1257 |
> |
try { |
1258 |
> |
assertEquals("0", futures.get(0).get()); |
1259 |
> |
assertEquals("2", futures.get(2).get()); |
1260 |
> |
break; |
1261 |
> |
} catch (CancellationException retryWithLongerTimeout) { |
1262 |
> |
timeout *= 2; |
1263 |
> |
if (timeout >= LONG_DELAY_MS / 2) |
1264 |
> |
fail("expected exactly one task to be cancelled"); |
1265 |
> |
} |
1266 |
> |
} |
1267 |
|
} finally { |
1268 |
|
joinPool(e); |
1269 |
|
} |