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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 John Vint |
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*/ |
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import junit.framework.*; |
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import java.util.ArrayList; |
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import java.util.List; |
11 |
< |
import java.util.concurrent.atomic.AtomicInteger; |
12 |
< |
import java.util.concurrent.atomic.AtomicBoolean; |
13 |
< |
import java.util.concurrent.*; |
11 |
> |
import java.util.concurrent.Phaser; |
12 |
> |
import java.util.concurrent.CountDownLatch; |
13 |
> |
import java.util.concurrent.TimeoutException; |
14 |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
15 |
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import static java.util.concurrent.TimeUnit.NANOSECONDS; |
15 |
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import junit.framework.Test; |
16 |
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import junit.framework.TestSuite; |
15 |
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import java.util.concurrent.atomic.AtomicInteger; |
16 |
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|
17 |
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public class PhaserTest extends JSR166TestCase { |
18 |
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|
26 |
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|
27 |
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private static final int maxParties = 65535; |
28 |
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|
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< |
/** Checks state of phaser. */ |
29 |
> |
/** Checks state of unterminated phaser. */ |
30 |
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protected void assertState(Phaser phaser, |
31 |
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int phase, int parties, int unarrived) { |
32 |
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assertEquals(phase, phaser.getPhase()); |
33 |
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assertEquals(parties, phaser.getRegisteredParties()); |
34 |
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assertEquals(unarrived, phaser.getUnarrivedParties()); |
35 |
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assertEquals(parties - unarrived, phaser.getArrivedParties()); |
36 |
< |
assertTrue((phaser.getPhase() >= 0) ^ phaser.isTerminated()); |
36 |
> |
assertFalse(phaser.isTerminated()); |
37 |
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} |
38 |
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|
39 |
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/** Checks state of terminated phaser. */ |
40 |
< |
protected void assertTerminated(Phaser phaser, int parties, int unarrived) { |
40 |
> |
protected void assertTerminated(Phaser phaser, int maxPhase, int parties) { |
41 |
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assertTrue(phaser.isTerminated()); |
42 |
< |
assertTrue(phaser.getPhase() < 0); |
42 |
> |
int expectedPhase = maxPhase + Integer.MIN_VALUE; |
43 |
> |
assertEquals(expectedPhase, phaser.getPhase()); |
44 |
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assertEquals(parties, phaser.getRegisteredParties()); |
45 |
< |
assertEquals(unarrived, phaser.getUnarrivedParties()); |
46 |
< |
assertEquals(parties - unarrived, phaser.getArrivedParties()); |
45 |
> |
assertEquals(expectedPhase, phaser.register()); |
46 |
> |
assertEquals(expectedPhase, phaser.arrive()); |
47 |
> |
assertEquals(expectedPhase, phaser.arriveAndDeregister()); |
48 |
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} |
49 |
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|
50 |
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protected void assertTerminated(Phaser phaser) { |
51 |
< |
assertTerminated(phaser, 0, 0); |
50 |
> |
protected void assertTerminated(Phaser phaser, int maxPhase) { |
51 |
> |
assertTerminated(phaser, maxPhase, 0); |
52 |
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} |
53 |
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|
54 |
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/** |
157 |
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phaser.bulkRegister(Integer.MAX_VALUE); |
158 |
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shouldThrow(); |
159 |
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} catch (IllegalStateException success) {} |
160 |
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|
161 |
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assertEquals(0, phaser.bulkRegister(0)); |
162 |
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assertState(phaser, 0, maxParties, maxParties); |
163 |
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} |
164 |
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|
165 |
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/** |
166 |
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* register() correctly returns the current barrier phase number when |
167 |
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* invoked |
166 |
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* register() correctly returns the current barrier phase number |
167 |
> |
* when invoked |
168 |
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*/ |
169 |
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public void testRegister3() { |
170 |
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Phaser phaser = new Phaser(); |
175 |
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} |
176 |
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|
177 |
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/** |
178 |
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* register causes the next arrive to not increment the phase rather retain |
179 |
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* the phase number |
178 |
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* register causes the next arrive to not increment the phase |
179 |
> |
* rather retain the phase number |
180 |
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*/ |
181 |
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public void testRegister4() { |
182 |
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Phaser phaser = new Phaser(1); |
187 |
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} |
188 |
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|
189 |
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/** |
190 |
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* register on a subphaser that is currently empty succeeds, even |
191 |
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* in the presence of another non-empty subphaser |
192 |
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*/ |
193 |
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public void testRegisterEmptySubPhaser() { |
194 |
+ |
Phaser root = new Phaser(); |
195 |
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Phaser child1 = new Phaser(root, 1); |
196 |
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Phaser child2 = new Phaser(root, 0); |
197 |
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assertEquals(0, child2.register()); |
198 |
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assertState(root, 0, 2, 2); |
199 |
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assertState(child1, 0, 1, 1); |
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assertState(child2, 0, 1, 1); |
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assertEquals(0, child2.arriveAndDeregister()); |
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assertState(root, 0, 1, 1); |
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assertState(child1, 0, 1, 1); |
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assertState(child2, 0, 0, 0); |
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assertEquals(0, child2.register()); |
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assertEquals(0, child2.arriveAndDeregister()); |
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assertState(root, 0, 1, 1); |
208 |
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assertState(child1, 0, 1, 1); |
209 |
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assertState(child2, 0, 0, 0); |
210 |
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assertEquals(0, child1.arriveAndDeregister()); |
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assertTerminated(root, 1); |
212 |
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assertTerminated(child1, 1); |
213 |
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assertTerminated(child2, 1); |
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} |
215 |
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|
216 |
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/** |
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* Invoking bulkRegister with a negative parameter throws an |
218 |
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* IllegalArgumentException |
219 |
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*/ |
225 |
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} |
226 |
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|
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/** |
228 |
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* bulkRegister should correctly record the number of unarrived parties with |
229 |
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* the number of parties being registered |
228 |
> |
* bulkRegister should correctly record the number of unarrived |
229 |
> |
* parties with the number of parties being registered |
230 |
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*/ |
231 |
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public void testBulkRegister2() { |
232 |
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Phaser phaser = new Phaser(); |
233 |
+ |
assertEquals(0, phaser.bulkRegister(0)); |
234 |
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assertState(phaser, 0, 0, 0); |
235 |
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assertEquals(0, phaser.bulkRegister(20)); |
236 |
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assertState(phaser, 0, 20, 20); |
237 |
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} |
280 |
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/** |
281 |
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* arriveAndDeregister does not wait for others to arrive at barrier |
282 |
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*/ |
283 |
< |
public void testArriveAndDeregister() throws InterruptedException { |
283 |
> |
public void testArriveAndDeregister() { |
284 |
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final Phaser phaser = new Phaser(1); |
285 |
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for (int i = 0; i < 10; i++) { |
286 |
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assertState(phaser, 0, 1, 1); |
290 |
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assertState(phaser, 0, 1, 1); |
291 |
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} |
292 |
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assertEquals(0, phaser.arriveAndDeregister()); |
293 |
< |
assertTerminated(phaser); |
293 |
> |
assertTerminated(phaser, 1); |
294 |
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} |
295 |
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|
296 |
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/** |
297 |
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* arriveAndDeregister does not wait for others to arrive at barrier |
298 |
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*/ |
299 |
< |
public void testArrive2() throws InterruptedException { |
299 |
> |
public void testArrive2() { |
300 |
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final Phaser phaser = new Phaser(); |
301 |
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assertEquals(0, phaser.register()); |
302 |
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List<Thread> threads = new ArrayList<Thread>(); |
303 |
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for (int i = 0; i < 10; i++) { |
304 |
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assertEquals(0, phaser.register()); |
305 |
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threads.add(newStartedThread(new CheckedRunnable() { |
306 |
< |
public void realRun() throws InterruptedException { |
306 |
> |
public void realRun() { |
307 |
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assertEquals(0, phaser.arriveAndDeregister()); |
308 |
|
}})); |
309 |
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} |
310 |
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|
311 |
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for (Thread thread : threads) |
312 |
< |
awaitTermination(thread, LONG_DELAY_MS); |
312 |
> |
awaitTermination(thread); |
313 |
|
assertState(phaser, 0, 1, 1); |
314 |
|
assertEquals(0, phaser.arrive()); |
315 |
|
assertState(phaser, 1, 1, 1); |
321 |
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public void testArrive3() { |
322 |
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Phaser phaser = new Phaser(1); |
323 |
|
phaser.forceTermination(); |
324 |
< |
assertTerminated(phaser, 1, 1); |
324 |
> |
assertTerminated(phaser, 0, 1); |
325 |
> |
assertEquals(0, phaser.getPhase() + Integer.MIN_VALUE); |
326 |
|
assertTrue(phaser.arrive() < 0); |
327 |
|
assertTrue(phaser.register() < 0); |
328 |
|
assertTrue(phaser.arriveAndDeregister() < 0); |
363 |
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Phaser parent = new Phaser(); |
364 |
|
Phaser child = new Phaser(parent); |
365 |
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assertState(child, 0, 0, 0); |
366 |
< |
assertState(parent, 0, 1, 1); |
366 |
> |
assertState(parent, 0, 0, 0); |
367 |
|
assertEquals(0, child.register()); |
368 |
|
assertState(child, 0, 1, 1); |
369 |
|
assertState(parent, 0, 1, 1); |
370 |
|
assertEquals(0, child.arriveAndDeregister()); |
371 |
< |
assertTerminated(child); |
372 |
< |
assertTerminated(parent); |
371 |
> |
assertTerminated(child, 1); |
372 |
> |
assertTerminated(parent, 1); |
373 |
|
} |
374 |
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|
375 |
|
/** |
396 |
|
Phaser root = new Phaser(); |
397 |
|
Phaser parent = new Phaser(root); |
398 |
|
Phaser child = new Phaser(parent); |
399 |
< |
assertState(root, 0, 1, 1); |
400 |
< |
assertState(parent, 0, 1, 1); |
399 |
> |
assertState(root, 0, 0, 0); |
400 |
> |
assertState(parent, 0, 0, 0); |
401 |
|
assertState(child, 0, 0, 0); |
402 |
|
assertEquals(0, child.register()); |
403 |
|
assertState(root, 0, 1, 1); |
404 |
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assertState(parent, 0, 1, 1); |
405 |
|
assertState(child, 0, 1, 1); |
406 |
|
assertEquals(0, child.arriveAndDeregister()); |
407 |
< |
assertTerminated(child); |
408 |
< |
assertTerminated(parent); |
409 |
< |
assertTerminated(root); |
407 |
> |
assertTerminated(child, 1); |
408 |
> |
assertTerminated(parent, 1); |
409 |
> |
assertTerminated(root, 1); |
410 |
|
} |
411 |
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|
412 |
|
/** |
413 |
|
* arriveAndDeregister returns the phase in which it leaves the |
414 |
|
* phaser in after deregistration |
415 |
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*/ |
416 |
< |
public void testArriveAndDeregister6() throws InterruptedException { |
416 |
> |
public void testArriveAndDeregister6() { |
417 |
|
final Phaser phaser = new Phaser(2); |
418 |
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Thread t = newStartedThread(new CheckedRunnable() { |
419 |
|
public void realRun() { |
424 |
|
assertEquals(1, phaser.arriveAndDeregister()); |
425 |
|
assertState(phaser, 1, 1, 1); |
426 |
|
assertEquals(1, phaser.arriveAndDeregister()); |
427 |
< |
assertTerminated(phaser); |
428 |
< |
awaitTermination(t, SHORT_DELAY_MS); |
427 |
> |
assertTerminated(phaser, 2); |
428 |
> |
awaitTermination(t); |
429 |
|
} |
430 |
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|
431 |
|
/** |
448 |
|
} |
449 |
|
|
450 |
|
/** |
451 |
+ |
* awaitAdvanceInterruptibly blocks interruptibly |
452 |
+ |
*/ |
453 |
+ |
public void testAwaitAdvanceInterruptibly_interruptible() throws InterruptedException { |
454 |
+ |
final Phaser phaser = new Phaser(1); |
455 |
+ |
final CountDownLatch pleaseInterrupt = new CountDownLatch(2); |
456 |
+ |
|
457 |
+ |
Thread t1 = newStartedThread(new CheckedRunnable() { |
458 |
+ |
public void realRun() { |
459 |
+ |
Thread.currentThread().interrupt(); |
460 |
+ |
try { |
461 |
+ |
phaser.awaitAdvanceInterruptibly(0); |
462 |
+ |
shouldThrow(); |
463 |
+ |
} catch (InterruptedException success) {} |
464 |
+ |
assertFalse(Thread.interrupted()); |
465 |
+ |
|
466 |
+ |
pleaseInterrupt.countDown(); |
467 |
+ |
try { |
468 |
+ |
phaser.awaitAdvanceInterruptibly(0); |
469 |
+ |
shouldThrow(); |
470 |
+ |
} catch (InterruptedException success) {} |
471 |
+ |
assertFalse(Thread.interrupted()); |
472 |
+ |
}}); |
473 |
+ |
|
474 |
+ |
Thread t2 = newStartedThread(new CheckedRunnable() { |
475 |
+ |
public void realRun() throws TimeoutException { |
476 |
+ |
Thread.currentThread().interrupt(); |
477 |
+ |
try { |
478 |
+ |
phaser.awaitAdvanceInterruptibly(0, 2*LONG_DELAY_MS, MILLISECONDS); |
479 |
+ |
shouldThrow(); |
480 |
+ |
} catch (InterruptedException success) {} |
481 |
+ |
assertFalse(Thread.interrupted()); |
482 |
+ |
|
483 |
+ |
pleaseInterrupt.countDown(); |
484 |
+ |
try { |
485 |
+ |
phaser.awaitAdvanceInterruptibly(0, 2*LONG_DELAY_MS, MILLISECONDS); |
486 |
+ |
shouldThrow(); |
487 |
+ |
} catch (InterruptedException success) {} |
488 |
+ |
assertFalse(Thread.interrupted()); |
489 |
+ |
}}); |
490 |
+ |
|
491 |
+ |
await(pleaseInterrupt); |
492 |
+ |
assertState(phaser, 0, 1, 1); |
493 |
+ |
assertThreadsStayAlive(t1, t2); |
494 |
+ |
t1.interrupt(); |
495 |
+ |
t2.interrupt(); |
496 |
+ |
awaitTermination(t1); |
497 |
+ |
awaitTermination(t2); |
498 |
+ |
assertState(phaser, 0, 1, 1); |
499 |
+ |
assertEquals(0, phaser.arrive()); |
500 |
+ |
assertState(phaser, 1, 1, 1); |
501 |
+ |
} |
502 |
+ |
|
503 |
+ |
/** |
504 |
|
* awaitAdvance continues waiting if interrupted before waiting |
505 |
|
*/ |
506 |
< |
public void testAwaitAdvanceAfterInterrupt() throws InterruptedException { |
506 |
> |
public void testAwaitAdvanceAfterInterrupt() { |
507 |
|
final Phaser phaser = new Phaser(); |
508 |
|
assertEquals(0, phaser.register()); |
509 |
< |
final CountDownLatch threadStarted = new CountDownLatch(1); |
509 |
> |
final CountDownLatch pleaseArrive = new CountDownLatch(1); |
510 |
|
|
511 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
512 |
< |
public void realRun() throws InterruptedException { |
512 |
> |
public void realRun() { |
513 |
|
Thread.currentThread().interrupt(); |
514 |
|
assertEquals(0, phaser.register()); |
515 |
|
assertEquals(0, phaser.arrive()); |
516 |
< |
threadStarted.countDown(); |
516 |
> |
pleaseArrive.countDown(); |
517 |
|
assertTrue(Thread.currentThread().isInterrupted()); |
518 |
|
assertEquals(1, phaser.awaitAdvance(0)); |
519 |
< |
assertTrue(Thread.currentThread().isInterrupted()); |
519 |
> |
assertTrue(Thread.interrupted()); |
520 |
|
}}); |
521 |
|
|
522 |
< |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
523 |
< |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
522 |
> |
await(pleaseArrive); |
523 |
> |
waitForThreadToEnterWaitState(t, SHORT_DELAY_MS); |
524 |
|
assertEquals(0, phaser.arrive()); |
525 |
< |
awaitTermination(t, SMALL_DELAY_MS); |
525 |
> |
awaitTermination(t); |
526 |
|
|
527 |
|
Thread.currentThread().interrupt(); |
528 |
|
assertEquals(1, phaser.awaitAdvance(0)); |
530 |
|
} |
531 |
|
|
532 |
|
/** |
533 |
< |
* awaitAdvance continues waiting if interrupted while waiting |
533 |
> |
* awaitAdvance continues waiting if interrupted while waiting |
534 |
|
*/ |
535 |
< |
public void testAwaitAdvanceBeforeInterrupt() throws InterruptedException { |
535 |
> |
public void testAwaitAdvanceBeforeInterrupt() { |
536 |
|
final Phaser phaser = new Phaser(); |
537 |
|
assertEquals(0, phaser.register()); |
538 |
< |
final CountDownLatch threadStarted = new CountDownLatch(1); |
538 |
> |
final CountDownLatch pleaseArrive = new CountDownLatch(1); |
539 |
|
|
540 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
541 |
< |
public void realRun() throws InterruptedException { |
541 |
> |
public void realRun() { |
542 |
|
assertEquals(0, phaser.register()); |
543 |
|
assertEquals(0, phaser.arrive()); |
457 |
– |
threadStarted.countDown(); |
544 |
|
assertFalse(Thread.currentThread().isInterrupted()); |
545 |
+ |
pleaseArrive.countDown(); |
546 |
|
assertEquals(1, phaser.awaitAdvance(0)); |
547 |
< |
assertTrue(Thread.currentThread().isInterrupted()); |
547 |
> |
assertTrue(Thread.interrupted()); |
548 |
|
}}); |
549 |
|
|
550 |
< |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
551 |
< |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
550 |
> |
await(pleaseArrive); |
551 |
> |
waitForThreadToEnterWaitState(t, SHORT_DELAY_MS); |
552 |
|
t.interrupt(); |
553 |
|
assertEquals(0, phaser.arrive()); |
554 |
< |
awaitTermination(t, SMALL_DELAY_MS); |
554 |
> |
awaitTermination(t); |
555 |
|
|
556 |
|
Thread.currentThread().interrupt(); |
557 |
|
assertEquals(1, phaser.awaitAdvance(0)); |
561 |
|
/** |
562 |
|
* arriveAndAwaitAdvance continues waiting if interrupted before waiting |
563 |
|
*/ |
564 |
< |
public void testArriveAndAwaitAdvanceAfterInterrupt() |
478 |
< |
throws InterruptedException { |
564 |
> |
public void testArriveAndAwaitAdvanceAfterInterrupt() { |
565 |
|
final Phaser phaser = new Phaser(); |
566 |
|
assertEquals(0, phaser.register()); |
567 |
< |
final CountDownLatch threadStarted = new CountDownLatch(1); |
567 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
568 |
|
|
569 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
570 |
< |
public void realRun() throws InterruptedException { |
570 |
> |
public void realRun() { |
571 |
|
Thread.currentThread().interrupt(); |
572 |
|
assertEquals(0, phaser.register()); |
573 |
< |
threadStarted.countDown(); |
573 |
> |
pleaseInterrupt.countDown(); |
574 |
|
assertTrue(Thread.currentThread().isInterrupted()); |
575 |
|
assertEquals(1, phaser.arriveAndAwaitAdvance()); |
576 |
|
assertTrue(Thread.currentThread().isInterrupted()); |
577 |
|
}}); |
578 |
|
|
579 |
< |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
580 |
< |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
579 |
> |
await(pleaseInterrupt); |
580 |
> |
waitForThreadToEnterWaitState(t, SHORT_DELAY_MS); |
581 |
|
Thread.currentThread().interrupt(); |
582 |
|
assertEquals(1, phaser.arriveAndAwaitAdvance()); |
583 |
|
assertTrue(Thread.interrupted()); |
584 |
< |
awaitTermination(t, SMALL_DELAY_MS); |
584 |
> |
awaitTermination(t); |
585 |
|
} |
586 |
|
|
587 |
|
/** |
588 |
|
* arriveAndAwaitAdvance continues waiting if interrupted while waiting |
589 |
|
*/ |
590 |
< |
public void testArriveAndAwaitAdvanceBeforeInterrupt() |
505 |
< |
throws InterruptedException { |
590 |
> |
public void testArriveAndAwaitAdvanceBeforeInterrupt() { |
591 |
|
final Phaser phaser = new Phaser(); |
592 |
|
assertEquals(0, phaser.register()); |
593 |
< |
final CountDownLatch threadStarted = new CountDownLatch(1); |
593 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
594 |
|
|
595 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
596 |
< |
public void realRun() throws InterruptedException { |
596 |
> |
public void realRun() { |
597 |
|
assertEquals(0, phaser.register()); |
513 |
– |
threadStarted.countDown(); |
598 |
|
assertFalse(Thread.currentThread().isInterrupted()); |
599 |
+ |
pleaseInterrupt.countDown(); |
600 |
|
assertEquals(1, phaser.arriveAndAwaitAdvance()); |
601 |
|
assertTrue(Thread.currentThread().isInterrupted()); |
602 |
|
}}); |
603 |
|
|
604 |
< |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
605 |
< |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
604 |
> |
await(pleaseInterrupt); |
605 |
> |
waitForThreadToEnterWaitState(t, SHORT_DELAY_MS); |
606 |
|
t.interrupt(); |
607 |
|
Thread.currentThread().interrupt(); |
608 |
|
assertEquals(1, phaser.arriveAndAwaitAdvance()); |
609 |
|
assertTrue(Thread.interrupted()); |
610 |
< |
awaitTermination(t, SMALL_DELAY_MS); |
610 |
> |
awaitTermination(t); |
611 |
|
} |
612 |
|
|
613 |
|
/** |
614 |
|
* awaitAdvance atomically waits for all parties within the same phase to |
615 |
|
* complete before continuing |
616 |
|
*/ |
617 |
< |
public void testAwaitAdvance4() throws InterruptedException { |
617 |
> |
public void testAwaitAdvance4() { |
618 |
|
final Phaser phaser = new Phaser(4); |
619 |
|
final AtomicInteger count = new AtomicInteger(0); |
620 |
|
List<Thread> threads = new ArrayList<Thread>(); |
626 |
|
count.incrementAndGet(); |
627 |
|
assertEquals(2*k+1, phaser.arrive()); |
628 |
|
assertEquals(2*k+2, phaser.awaitAdvance(2*k+1)); |
629 |
< |
assertEquals(count.get(), 4*(k+1)); |
629 |
> |
assertEquals(4*(k+1), count.get()); |
630 |
|
}}})); |
631 |
|
|
632 |
|
for (Thread thread : threads) |
633 |
< |
awaitTermination(thread, MEDIUM_DELAY_MS); |
633 |
> |
awaitTermination(thread); |
634 |
|
} |
635 |
|
|
636 |
|
/** |
637 |
|
* awaitAdvance returns the current phase |
638 |
|
*/ |
639 |
< |
public void testAwaitAdvance5() throws InterruptedException { |
639 |
> |
public void testAwaitAdvance5() { |
640 |
|
final Phaser phaser = new Phaser(1); |
641 |
|
assertEquals(1, phaser.awaitAdvance(phaser.arrive())); |
642 |
|
assertEquals(1, phaser.getPhase()); |
646 |
|
final CountDownLatch latch = new CountDownLatch(1); |
647 |
|
final boolean goesFirst = ((i & 1) == 0); |
648 |
|
threads.add(newStartedThread(new CheckedRunnable() { |
649 |
< |
public void realRun() throws InterruptedException { |
649 |
> |
public void realRun() { |
650 |
|
if (goesFirst) |
651 |
|
latch.countDown(); |
652 |
|
else |
653 |
< |
assertTrue(latch.await(SMALL_DELAY_MS, MILLISECONDS)); |
653 |
> |
await(latch); |
654 |
|
phaser.arrive(); |
655 |
|
}})); |
656 |
|
if (goesFirst) |
657 |
< |
assertTrue(latch.await(SMALL_DELAY_MS, MILLISECONDS)); |
657 |
> |
await(latch); |
658 |
|
else |
659 |
|
latch.countDown(); |
660 |
|
assertEquals(i + 2, phaser.awaitAdvance(phaser.arrive())); |
661 |
|
assertEquals(i + 2, phaser.getPhase()); |
662 |
|
} |
663 |
|
for (Thread thread : threads) |
664 |
< |
awaitTermination(thread, SMALL_DELAY_MS); |
664 |
> |
awaitTermination(thread); |
665 |
> |
} |
666 |
> |
|
667 |
> |
/** |
668 |
> |
* awaitAdvance returns the current phase in child phasers |
669 |
> |
*/ |
670 |
> |
public void testAwaitAdvanceTieredPhaser() throws Exception { |
671 |
> |
final Phaser parent = new Phaser(); |
672 |
> |
final List<Phaser> zeroPartyChildren = new ArrayList<Phaser>(3); |
673 |
> |
final List<Phaser> onePartyChildren = new ArrayList<Phaser>(3); |
674 |
> |
for (int i = 0; i < 3; i++) { |
675 |
> |
zeroPartyChildren.add(new Phaser(parent, 0)); |
676 |
> |
onePartyChildren.add(new Phaser(parent, 1)); |
677 |
> |
} |
678 |
> |
final List<Phaser> phasers = new ArrayList<Phaser>(); |
679 |
> |
phasers.addAll(zeroPartyChildren); |
680 |
> |
phasers.addAll(onePartyChildren); |
681 |
> |
phasers.add(parent); |
682 |
> |
for (Phaser phaser : phasers) { |
683 |
> |
assertEquals(-42, phaser.awaitAdvance(-42)); |
684 |
> |
assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42)); |
685 |
> |
assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42, SMALL_DELAY_MS, MILLISECONDS)); |
686 |
> |
} |
687 |
> |
|
688 |
> |
for (Phaser child : onePartyChildren) |
689 |
> |
assertEquals(0, child.arrive()); |
690 |
> |
for (Phaser phaser : phasers) { |
691 |
> |
assertEquals(-42, phaser.awaitAdvance(-42)); |
692 |
> |
assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42)); |
693 |
> |
assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42, SMALL_DELAY_MS, MILLISECONDS)); |
694 |
> |
assertEquals(1, phaser.awaitAdvance(0)); |
695 |
> |
assertEquals(1, phaser.awaitAdvanceInterruptibly(0)); |
696 |
> |
assertEquals(1, phaser.awaitAdvanceInterruptibly(0, SMALL_DELAY_MS, MILLISECONDS)); |
697 |
> |
} |
698 |
> |
|
699 |
> |
for (Phaser child : onePartyChildren) |
700 |
> |
assertEquals(1, child.arrive()); |
701 |
> |
for (Phaser phaser : phasers) { |
702 |
> |
assertEquals(-42, phaser.awaitAdvance(-42)); |
703 |
> |
assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42)); |
704 |
> |
assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42, SMALL_DELAY_MS, MILLISECONDS)); |
705 |
> |
assertEquals(2, phaser.awaitAdvance(0)); |
706 |
> |
assertEquals(2, phaser.awaitAdvanceInterruptibly(0)); |
707 |
> |
assertEquals(2, phaser.awaitAdvanceInterruptibly(0, SMALL_DELAY_MS, MILLISECONDS)); |
708 |
> |
assertEquals(2, phaser.awaitAdvance(1)); |
709 |
> |
assertEquals(2, phaser.awaitAdvanceInterruptibly(1)); |
710 |
> |
assertEquals(2, phaser.awaitAdvanceInterruptibly(1, SMALL_DELAY_MS, MILLISECONDS)); |
711 |
> |
} |
712 |
|
} |
713 |
|
|
714 |
|
/** |
715 |
|
* awaitAdvance returns when the phaser is externally terminated |
716 |
|
*/ |
717 |
< |
public void testAwaitAdvance6() throws InterruptedException { |
717 |
> |
public void testAwaitAdvance6() { |
718 |
|
final Phaser phaser = new Phaser(3); |
719 |
< |
final CountDownLatch threadsStarted = new CountDownLatch(2); |
719 |
> |
final CountDownLatch pleaseForceTermination = new CountDownLatch(2); |
720 |
|
final List<Thread> threads = new ArrayList<Thread>(); |
721 |
|
for (int i = 0; i < 2; i++) { |
722 |
|
Runnable r = new CheckedRunnable() { |
723 |
|
public void realRun() { |
724 |
|
assertEquals(0, phaser.arrive()); |
725 |
< |
threadsStarted.countDown(); |
725 |
> |
pleaseForceTermination.countDown(); |
726 |
|
assertTrue(phaser.awaitAdvance(0) < 0); |
727 |
|
assertTrue(phaser.isTerminated()); |
728 |
|
assertTrue(phaser.getPhase() < 0); |
729 |
+ |
assertEquals(0, phaser.getPhase() + Integer.MIN_VALUE); |
730 |
|
assertEquals(3, phaser.getRegisteredParties()); |
731 |
|
}}; |
732 |
|
threads.add(newStartedThread(r)); |
733 |
|
} |
734 |
< |
threadsStarted.await(); |
734 |
> |
await(pleaseForceTermination); |
735 |
|
phaser.forceTermination(); |
603 |
– |
for (Thread thread : threads) |
604 |
– |
awaitTermination(thread, SMALL_DELAY_MS); |
736 |
|
assertTrue(phaser.isTerminated()); |
737 |
< |
assertTrue(phaser.getPhase() < 0); |
737 |
> |
assertEquals(0, phaser.getPhase() + Integer.MIN_VALUE); |
738 |
> |
for (Thread thread : threads) |
739 |
> |
awaitTermination(thread); |
740 |
|
assertEquals(3, phaser.getRegisteredParties()); |
741 |
|
} |
742 |
|
|
757 |
|
* number of arrived parties is the same number that is accounted |
758 |
|
* for when the main thread awaitsAdvance |
759 |
|
*/ |
760 |
< |
public void testArriveAndAwaitAdvance3() throws InterruptedException { |
760 |
> |
public void testArriveAndAwaitAdvance3() { |
761 |
|
final Phaser phaser = new Phaser(1); |
762 |
|
final int THREADS = 3; |
763 |
< |
final CountDownLatch threadsStarted = new CountDownLatch(THREADS); |
763 |
> |
final CountDownLatch pleaseArrive = new CountDownLatch(THREADS); |
764 |
|
final List<Thread> threads = new ArrayList<Thread>(); |
765 |
|
for (int i = 0; i < THREADS; i++) |
766 |
|
threads.add(newStartedThread(new CheckedRunnable() { |
767 |
< |
public void realRun() throws InterruptedException { |
767 |
> |
public void realRun() { |
768 |
|
assertEquals(0, phaser.register()); |
769 |
< |
threadsStarted.countDown(); |
769 |
> |
pleaseArrive.countDown(); |
770 |
|
assertEquals(1, phaser.arriveAndAwaitAdvance()); |
771 |
|
}})); |
772 |
|
|
773 |
< |
assertTrue(threadsStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
774 |
< |
long t0 = System.nanoTime(); |
773 |
> |
await(pleaseArrive); |
774 |
> |
long startTime = System.nanoTime(); |
775 |
|
while (phaser.getArrivedParties() < THREADS) |
776 |
|
Thread.yield(); |
777 |
|
assertEquals(THREADS, phaser.getArrivedParties()); |
778 |
< |
assertTrue(NANOSECONDS.toMillis(System.nanoTime() - t0) < SMALL_DELAY_MS); |
778 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
779 |
> |
for (Thread thread : threads) |
780 |
> |
waitForThreadToEnterWaitState(thread, SHORT_DELAY_MS); |
781 |
|
for (Thread thread : threads) |
782 |
|
assertTrue(thread.isAlive()); |
783 |
|
assertState(phaser, 0, THREADS + 1, 1); |
784 |
|
phaser.arriveAndAwaitAdvance(); |
785 |
|
for (Thread thread : threads) |
786 |
< |
awaitTermination(thread, SMALL_DELAY_MS); |
786 |
> |
awaitTermination(thread); |
787 |
|
assertState(phaser, 1, THREADS + 1, THREADS + 1); |
788 |
|
} |
789 |
|
|