ViewVC Help

View File | Revision Log | Show Annotations | Download File | Root Listing

root/jsr166/jsr166/src/test/tck/PhaserTest.java

Comparing jsr166/src/test/tck/PhaserTest.java (file contents):
Revision 1.2 by jsr166, Fri Jul 31 23:37:31 2009 UTC vs.
Revision 1.24 by dl, Mon Nov 29 15:47:29 2010 UTC

#	Line 8 | Line 8
8		import java.util.ArrayList;
9		import java.util.List;
10		import java.util.concurrent.atomic.AtomicInteger;
11	+	import java.util.concurrent.atomic.AtomicBoolean;
12		import java.util.concurrent.*;
13	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
14	+	import static java.util.concurrent.TimeUnit.NANOSECONDS;
15		import junit.framework.Test;
16		import junit.framework.TestSuite;
17
#	Line 22 | Line 25 | public class PhaserTest extends JSR166Te
25		return new TestSuite(PhaserTest.class);
26		}
27
28	+	private static final int maxParties = 65535;
29	+
30	+	/** Checks state of phaser. */
31	+	protected void assertState(Phaser phaser,
32	+	int phase, int parties, int unarrived) {
33	+	assertEquals(phase, phaser.getPhase());
34	+	assertEquals(parties, phaser.getRegisteredParties());
35	+	assertEquals(unarrived, phaser.getUnarrivedParties());
36	+	assertEquals(parties - unarrived, phaser.getArrivedParties());
37	+	assertTrue((phaser.getPhase() >= 0) ^ phaser.isTerminated());
38	+	}
39	+
40	+	/** Checks state of terminated phaser. */
41	+	protected void assertTerminated(Phaser phaser, int parties, int unarrived) {
42	+	assertTrue(phaser.isTerminated());
43	+	assertTrue(phaser.getPhase() < 0);
44	+	assertEquals(parties, phaser.getRegisteredParties());
45	+	assertEquals(unarrived, phaser.getUnarrivedParties());
46	+	assertEquals(parties - unarrived, phaser.getArrivedParties());
47	+	}
48	+
49	+	protected void assertTerminated(Phaser phaser) {
50	+	assertTerminated(phaser, 0, 0);
51	+	}
52	+
53		/**
54		* Empty constructor builds a new Phaser with no parent, no registered
55		* parties and initial phase number of 0
56		*/
57	<	public void testConstructor1() {
57	>	public void testConstructorDefaultValues() {
58		Phaser phaser = new Phaser();
59		assertNull(phaser.getParent());
60	+	assertEquals(0, phaser.getRegisteredParties());
61		assertEquals(0, phaser.getArrivedParties());
62	+	assertEquals(0, phaser.getUnarrivedParties());
63		assertEquals(0, phaser.getPhase());
64		}
65
66		/**
67	<	* A negative party number for the constructor throws illegal argument
68	<	* exception
67	>	* Constructing with a negative number of parties throws
68	>	* IllegalArgumentException
69		*/
70	<	public void testConstructor2() {
70	>	public void testConstructorNegativeParties() {
71		try {
72		new Phaser(-1);
73	<	this.shouldThrow();
74	<	} catch (IllegalArgumentException success) {
45	<	}
73	>	shouldThrow();
74	>	} catch (IllegalArgumentException success) {}
75		}
76
77		/**
78	<	* The parent being input into the constructor should equal the original
79	<	* parent when being returned
78	>	* Constructing with a negative number of parties throws
79	>	* IllegalArgumentException
80		*/
81	<	public void testConstructor3() {
82	<	Phaser parent = new Phaser();
83	<	assertEquals(parent, new Phaser(parent).getParent());
81	>	public void testConstructorNegativeParties2() {
82	>	try {
83	>	new Phaser(new Phaser(), -1);
84	>	shouldThrow();
85	>	} catch (IllegalArgumentException success) {}
86		}
87
88		/**
89	<	* A negative party number for the constructor throws illegal argument
90	<	* exception
89	>	* Constructing with a number of parties > 65535 throws
90	>	* IllegalArgumentException
91		*/
92	<	public void testConstructor4() {
92	>	public void testConstructorPartiesExceedsLimit() {
93	>	new Phaser(maxParties);
94		try {
95	<	new Phaser(new Phaser(), -1);
95	>	new Phaser(maxParties + 1);
96		shouldThrow();
97	<	} catch (IllegalArgumentException success) {
98	<	}
97	>	} catch (IllegalArgumentException success) {}
98	>
99	>	new Phaser(new Phaser(), maxParties);
100	>	try {
101	>	new Phaser(new Phaser(), maxParties + 1);
102	>	shouldThrow();
103	>	} catch (IllegalArgumentException success) {}
104	>	}
105	>
106	>	/**
107	>	* The parent provided to the constructor should be returned from
108	>	* a later call to getParent
109	>	*/
110	>	public void testConstructor3() {
111	>	Phaser parent = new Phaser();
112	>	assertSame(parent, new Phaser(parent).getParent());
113	>	assertNull(new Phaser(null).getParent());
114		}
115
116		/**
#	Line 72 | Line 119 | public class PhaserTest extends JSR166Te
119		*/
120		public void testConstructor5() {
121		Phaser parent = new Phaser();
122	<	assertEquals(parent, new Phaser(parent, 0).getParent());
122	>	assertSame(parent, new Phaser(parent, 0).getParent());
123	>	assertNull(new Phaser(null, 0).getParent());
124		}
125
126		/**
127	<	* register() will increment the number of unarrived parties by one and not
128	<	* affect its arrived parties
127	>	* register() will increment the number of unarrived parties by
128	>	* one and not affect its arrived parties
129		*/
130		public void testRegister1() {
131		Phaser phaser = new Phaser();
132	<	assertEquals(0, phaser.getUnarrivedParties());
133	<	phaser.register();
134	<	assertEquals(1, phaser.getUnarrivedParties());
87	<	assertEquals(0, phaser.getArrivedParties());
132	>	assertState(phaser, 0, 0, 0);
133	>	assertEquals(0, phaser.register());
134	>	assertState(phaser, 0, 1, 1);
135		}
136
137		/**
138	<	* Registering any more then 65536 parties causes IllegalStateExceptiom
138	>	* Registering more than 65536 parties causes IllegalStateException
139		*/
140		public void testRegister2() {
141		Phaser phaser = new Phaser(0);
142	<	int expectedUnnarivedParties = (1 << 16) - 1;
143	<	for (int i = 0; i < expectedUnnarivedParties; i++) {
144	<	phaser.register();
145	<	assertEquals(i + 1, phaser.getUnarrivedParties());
142	>	assertState(phaser, 0, 0, 0);
143	>	assertEquals(0, phaser.bulkRegister(maxParties - 10));
144	>	assertState(phaser, 0, maxParties - 10, maxParties - 10);
145	>	for (int i = 0; i < 10; i++) {
146	>	assertState(phaser, 0, maxParties - 10 + i, maxParties - 10 + i);
147	>	assertEquals(0, phaser.register());
148		}
149	+	assertState(phaser, 0, maxParties, maxParties);
150		try {
151		phaser.register();
152		shouldThrow();
153	<	} catch (IllegalStateException success) {
154	<	} catch (Exception ex) {
155	<	threadUnexpectedException(ex);
156	<	}
153	>	} catch (IllegalStateException success) {}
154	>
155	>	try {
156	>	phaser.bulkRegister(Integer.MAX_VALUE);
157	>	shouldThrow();
158	>	} catch (IllegalStateException success) {}
159		}
160
161		/**
#	Line 113 | Line 165 | public class PhaserTest extends JSR166Te
165		public void testRegister3() {
166		Phaser phaser = new Phaser();
167		assertEquals(0, phaser.register());
168	<	phaser.arrive();
168	>	assertEquals(0, phaser.arrive());
169		assertEquals(1, phaser.register());
170	+	assertState(phaser, 1, 2, 2);
171		}
172
173		/**
#	Line 123 | Line 176 | public class PhaserTest extends JSR166Te
176		*/
177		public void testRegister4() {
178		Phaser phaser = new Phaser(1);
179	<	phaser.arrive();
180	<	int expectedPhase = phaser.register();
181	<	phaser.arrive();
182	<	assertEquals(expectedPhase, phaser.getPhase());
130	<	}
131	<
132	<	public void testRegister5() {
133	<	Phaser phaser = new Phaser();
134	<	phaser.register();
135	<	assertEquals(1, phaser.getUnarrivedParties());
179	>	assertEquals(0, phaser.arrive());
180	>	assertEquals(1, phaser.register());
181	>	assertEquals(1, phaser.arrive());
182	>	assertState(phaser, 1, 2, 1);
183		}
184
185		/**
186		* Invoking bulkRegister with a negative parameter throws an
187	<	* IllegalArgumentExceptiom
187	>	* IllegalArgumentException
188		*/
189		public void testBulkRegister1() {
190		try {
191		new Phaser().bulkRegister(-1);
192		shouldThrow();
193	<	} catch (IllegalArgumentException success) {
147	<	}
193	>	} catch (IllegalArgumentException success) {}
194		}
195
196		/**
#	Line 153 | Line 199 | public class PhaserTest extends JSR166Te
199		*/
200		public void testBulkRegister2() {
201		Phaser phaser = new Phaser();
202	<	phaser.bulkRegister(20);
203	<	assertEquals(20, phaser.getUnarrivedParties());
202	>	assertEquals(0, phaser.bulkRegister(20));
203	>	assertState(phaser, 0, 20, 20);
204		}
205
206		/**
207	<	* Registering with a number of parties greater then or equal to 1<<16
208	<	* throws IllegalStateExceptiom.
207	>	* Registering with a number of parties greater than or equal to 1<<16
208	>	* throws IllegalStateException.
209		*/
210		public void testBulkRegister3() {
211	+	assertEquals(0, new Phaser().bulkRegister((1 << 16) - 1));
212	+
213		try {
214		new Phaser().bulkRegister(1 << 16);
215		shouldThrow();
216	<	} catch (IllegalStateException success) {
217	<	}
216	>	} catch (IllegalStateException success) {}
217	>
218	>	try {
219	>	new Phaser(2).bulkRegister((1 << 16) - 2);
220	>	shouldThrow();
221	>	} catch (IllegalStateException success) {}
222		}
223
224		/**
#	Line 183 | Line 235 | public class PhaserTest extends JSR166Te
235		}
236
237		/**
238	<	*  Arrive() on a registered phaser increments phase.
238	>	* arrive() on a registered phaser increments phase.
239		*/
240		public void testArrive1() {
241		Phaser phaser = new Phaser(1);
242	<	phaser.arrive();
243	<	assertEquals(1, phaser.getPhase());
242	>	assertState(phaser, 0, 1, 1);
243	>	assertEquals(0, phaser.arrive());
244	>	assertState(phaser, 1, 1, 1);
245		}
246
247		/**
248	<	* arrive does not wait for others to arrive at barrier
248	>	* arriveAndDeregister does not wait for others to arrive at barrier
249		*/
250	<	public void testArrive2() {
250	>	public void testArriveAndDeregister() throws InterruptedException {
251		final Phaser phaser = new Phaser(1);
252	<	phaser.register();
253	<	Thread thread = null;
254	<	for (final Runnable r : getRunnables(10, SHORT_DELAY_MS)) {
255	<	phaser.register();
256	<	thread = new Thread() {
252	>	for (int i = 0; i < 10; i++) {
253	>	assertState(phaser, 0, 1, 1);
254	>	assertEquals(0, phaser.register());
255	>	assertState(phaser, 0, 2, 2);
256	>	assertEquals(0, phaser.arriveAndDeregister());
257	>	assertState(phaser, 0, 1, 1);
258	>	}
259	>	assertEquals(0, phaser.arriveAndDeregister());
260	>	assertTerminated(phaser);
261	>	assertEquals(1, phaser.getPhase() + Integer.MIN_VALUE);
262	>	}
263
264	<	public void run() {
265	<	r.run();
266	<	phaser.arriveAndDeregister();
267	<	}
268	<	};
269	<	thread.start();
264	>	/**
265	>	* arriveAndDeregister does not wait for others to arrive at barrier
266	>	*/
267	>	public void testArrive2() throws InterruptedException {
268	>	final Phaser phaser = new Phaser();
269	>	assertEquals(0, phaser.register());
270	>	List<Thread> threads = new ArrayList<Thread>();
271	>	for (int i = 0; i < 10; i++) {
272	>	assertEquals(0, phaser.register());
273	>	threads.add(newStartedThread(new CheckedRunnable() {
274	>	public void realRun() throws InterruptedException {
275	>	assertEquals(0, phaser.arriveAndDeregister());
276	>	}}));
277		}
278
279	<	phaser.arrive();
280	<	assertTrue(thread.isAlive());
281	<	assertFalse(phaser.isTerminated());
279	>	for (Thread thread : threads)
280	>	awaitTermination(thread, LONG_DELAY_MS);
281	>	assertState(phaser, 0, 1, 1);
282	>	assertEquals(0, phaser.arrive());
283	>	assertState(phaser, 1, 1, 1);
284		}
285
286		/**
287	<	* arrive() returns a negative number if the Phaser is termindated
287	>	* arrive() returns a negative number if the Phaser is terminated
288		*/
289		public void testArrive3() {
290		Phaser phaser = new Phaser(1);
291		phaser.forceTermination();
292	+	assertTerminated(phaser, 1, 1);
293	+	assertEquals(0, phaser.getPhase() + Integer.MIN_VALUE);
294		assertTrue(phaser.arrive() < 0);
295	<
295	>	assertTrue(phaser.register() < 0);
296	>	assertTrue(phaser.arriveAndDeregister() < 0);
297	>	assertTrue(phaser.awaitAdvance(1) < 0);
298	>	assertTrue(phaser.getPhase() < 0);
299		}
300
301		/**
302		* arriveAndDeregister() throws IllegalStateException if number of
303	<	* registered or unnarived parties would become negative
303	>	* registered or unarrived parties would become negative
304		*/
305		public void testArriveAndDeregister1() {
306		try {
307		Phaser phaser = new Phaser();
308		phaser.arriveAndDeregister();
309		shouldThrow();
310	<
238	<	} catch (IllegalStateException success) {
239	<	}
310	>	} catch (IllegalStateException success) {}
311		}
312
313		/**
314	<	* arriveAndDeregister derigisters reduces the number of arrived parties
314	>	* arriveAndDeregister reduces the number of arrived parties
315		*/
316	<	public void testArriveAndDergeister2() {
316	>	public void testArriveAndDeregister2() {
317		final Phaser phaser = new Phaser(1);
318	<	phaser.register();
319	<	phaser.arrive();
320	<	int p = phaser.getArrivedParties();
321	<	assertTrue(p == 1);
322	<	phaser.arriveAndDeregister();
252	<	assertTrue(phaser.getArrivedParties() < p);
318	>	assertEquals(0, phaser.register());
319	>	assertEquals(0, phaser.arrive());
320	>	assertState(phaser, 0, 2, 1);
321	>	assertEquals(0, phaser.arriveAndDeregister());
322	>	assertState(phaser, 1, 1, 1);
323		}
324
325		/**
326	<	* arriveAndDeregister arrives to the barrier on a phaser with a parent and
326	>	* arriveAndDeregister arrives at the barrier on a phaser with a parent and
327		* when a deregistration occurs and causes the phaser to have zero parties
328		* its parent will be deregistered as well
329		*/
330	<	public void testArriveAndDeregsiter3() {
330	>	public void testArriveAndDeregister3() {
331		Phaser parent = new Phaser();
332	<	Phaser root = new Phaser(parent);
333	<	root.register();
334	<	assertTrue(parent.getUnarrivedParties() > 0);
335	<	assertTrue(root.getUnarrivedParties() > 0);
336	<	root.arriveAndDeregister();
337	<	assertTrue(parent.getUnarrivedParties() == 0);
338	<	assertTrue(root.getUnarrivedParties() == 0);
339	<	assertTrue(root.isTerminated() && parent.isTerminated());
332	>	Phaser child = new Phaser(parent);
333	>	assertState(child, 0, 0, 0);
334	>	assertState(parent, 0, 0, 0);
335	>	assertEquals(0, child.register());
336	>	assertState(child, 0, 1, 1);
337	>	assertState(parent, 0, 1, 1);
338	>	assertEquals(0, child.arriveAndDeregister());
339	>	assertTerminated(child);
340	>	assertTerminated(parent);
341		}
342
343		/**
344		* arriveAndDeregister deregisters one party from its parent when
345	<	* the number of parties of root is zero after deregistration
345	>	* the number of parties of child is zero after deregistration
346		*/
347	<	public void testArriveAndDeregsiter4() {
347	>	public void testArriveAndDeregister4() {
348		Phaser parent = new Phaser();
349	<	Phaser root = new Phaser(parent);
350	<	parent.register();
351	<	root.register();
352	<	int parentParties = parent.getUnarrivedParties();
353	<	root.arriveAndDeregister();
354	<	assertEquals(parentParties - 1, parent.getUnarrivedParties());
349	>	Phaser child = new Phaser(parent);
350	>	assertEquals(0, parent.register());
351	>	assertEquals(0, child.register());
352	>	assertState(child, 0, 1, 1);
353	>	assertState(parent, 0, 2, 2);
354	>	assertEquals(0, child.arriveAndDeregister());
355	>	assertState(child, 0, 0, 0);
356	>	assertState(parent, 0, 1, 1);
357		}
358
359		/**
#	Line 288 | Line 361 | public class PhaserTest extends JSR166Te
361		* the number of parties of root is nonzero after deregistration.
362		*/
363		public void testArriveAndDeregister5() {
364	<	Phaser parent = new Phaser();
364	>	Phaser root = new Phaser();
365	>	Phaser parent = new Phaser(root);
366		Phaser child = new Phaser(parent);
367	<	Phaser root = new Phaser(child);
368	<	assertTrue(parent.getUnarrivedParties() > 0);
369	<	assertTrue(child.getUnarrivedParties() > 0);
370	<	root.register();
371	<	root.arriveAndDeregister();
372	<	assertTrue(parent.getUnarrivedParties() == 0);
373	<	assertTrue(child.getUnarrivedParties() == 0);
374	<	assertTrue(root.isTerminated());
367	>	assertState(root, 0, 0, 0);
368	>	assertState(parent, 0, 0, 0);
369	>	assertState(child, 0, 0, 0);
370	>	assertEquals(0, child.register());
371	>	assertState(root, 0, 1, 1);
372	>	assertState(parent, 0, 1, 1);
373	>	assertState(child, 0, 1, 1);
374	>	assertEquals(0, child.arriveAndDeregister());
375	>	assertTerminated(child);
376	>	assertTerminated(parent);
377	>	assertTerminated(root);
378	>	assertEquals(1, root.getPhase() + Integer.MIN_VALUE);
379		}
380
381		/**
382		* arriveAndDeregister returns the phase in which it leaves the
383		* phaser in after deregistration
384		*/
385	<	public void testArriveAndDeregister6() {
385	>	public void testArriveAndDeregister6() throws InterruptedException {
386		final Phaser phaser = new Phaser(2);
387	<	new Thread() {
388	<
389	<	public void run() {
390	<	getRunnable(SHORT_DELAY_MS).run();
391	<	phaser.arrive();
392	<	}
393	<	}.start();
394	<	phaser.arriveAndAwaitAdvance();
395	<	int phase = phaser.arriveAndDeregister();
396	<	assertEquals(phase, phaser.getPhase());
387	>	Thread t = newStartedThread(new CheckedRunnable() {
388	>	public void realRun() {
389	>	assertEquals(0, phaser.arrive());
390	>	}});
391	>	assertEquals(1, phaser.arriveAndAwaitAdvance());
392	>	assertState(phaser, 1, 2, 2);
393	>	assertEquals(1, phaser.arriveAndDeregister());
394	>	assertState(phaser, 1, 1, 1);
395	>	assertEquals(1, phaser.arriveAndDeregister());
396	>	assertTerminated(phaser);
397	>	assertEquals(2, phaser.getPhase() + Integer.MIN_VALUE);
398	>	awaitTermination(t, SHORT_DELAY_MS);
399		}
400
401		/**
#	Line 323 | Line 403 | public class PhaserTest extends JSR166Te
403		*/
404		public void testAwaitAdvance1() {
405		final Phaser phaser = new Phaser(1);
406	<	phaser.awaitAdvance(phaser.arrive());
406	>	assertEquals(0, phaser.arrive());
407	>	assertEquals(1, phaser.awaitAdvance(0));
408		}
409
410		/**
#	Line 331 | Line 412 | public class PhaserTest extends JSR166Te
412		* phaser
413		*/
414		public void testAwaitAdvance2() {
415	<	try {
416	<	Phaser phaser = new Phaser();
417	<	phaser.awaitAdvance(-1);
337	<	} catch (Exception failure) {
338	<	this.unexpectedException();
339	<	}
415	>	Phaser phaser = new Phaser();
416	>	assertTrue(phaser.awaitAdvance(-1) < 0);
417	>	assertState(phaser, 0, 0, 0);
418		}
419
420		/**
421	<	* awaitAdvance while waiting does not abort on interrupt.
421	>	* awaitAdvance continues waiting if interrupted before waiting
422		*/
423	<	public void testAwaitAdvance3() {
423	>	public void testAwaitAdvanceAfterInterrupt() throws InterruptedException {
424		final Phaser phaser = new Phaser();
425	<	Thread th1 = new Thread() {
425	>	assertEquals(0, phaser.register());
426	>	final CountDownLatch threadStarted = new CountDownLatch(1);
427
428	<	public void run() {
429	<	try {
430	<	phaser.register();
431	<	getRunnable(LONG_DELAY_MS).run();
432	<	phaser.awaitAdvance(phaser.arrive());
433	<	} catch (Exception failure) {
434	<	threadUnexpectedException(failure);
435	<	}
428	>	Thread t = newStartedThread(new CheckedRunnable() {
429	>	public void realRun() throws InterruptedException {
430	>	Thread.currentThread().interrupt();
431	>	assertEquals(0, phaser.register());
432	>	assertEquals(0, phaser.arrive());
433	>	threadStarted.countDown();
434	>	assertTrue(Thread.currentThread().isInterrupted());
435	>	assertEquals(1, phaser.awaitAdvance(0));
436	>	assertTrue(Thread.currentThread().isInterrupted());
437	>	}});
438
439	<	}
440	<	};
441	<	phaser.register();
442	<	th1.start();
443	<	try {
444	<	Thread.sleep(SHORT_DELAY_MS);
445	<	th1.interrupt();
446	<	Thread.sleep(LONG_DELAY_MS);
447	<	phaser.arrive();
448	<	} catch (Exception failure) {
449	<	unexpectedException();
450	<	}
451	<	assertFalse(th1.isInterrupted());
439	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
440	>	waitForThreadToEnterWaitState(t, SMALL_DELAY_MS);
441	>	assertEquals(0, phaser.arrive());
442	>	awaitTermination(t, SMALL_DELAY_MS);
443	>
444	>	Thread.currentThread().interrupt();
445	>	assertEquals(1, phaser.awaitAdvance(0));
446	>	assertTrue(Thread.interrupted());
447	>	}
448	>
449	>	/**
450	>	* awaitAdvance continues waiting if interrupted while waiting
451	>	*/
452	>	public void testAwaitAdvanceBeforeInterrupt() throws InterruptedException {
453	>	final Phaser phaser = new Phaser();
454	>	assertEquals(0, phaser.register());
455	>	final CountDownLatch threadStarted = new CountDownLatch(1);
456	>
457	>	Thread t = newStartedThread(new CheckedRunnable() {
458	>	public void realRun() throws InterruptedException {
459	>	assertEquals(0, phaser.register());
460	>	assertEquals(0, phaser.arrive());
461	>	threadStarted.countDown();
462	>	assertFalse(Thread.currentThread().isInterrupted());
463	>	assertEquals(1, phaser.awaitAdvance(0));
464	>	assertTrue(Thread.currentThread().isInterrupted());
465	>	}});
466	>
467	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
468	>	waitForThreadToEnterWaitState(t, SMALL_DELAY_MS);
469	>	t.interrupt();
470	>	assertEquals(0, phaser.arrive());
471	>	awaitTermination(t, SMALL_DELAY_MS);
472	>
473	>	Thread.currentThread().interrupt();
474	>	assertEquals(1, phaser.awaitAdvance(0));
475	>	assertTrue(Thread.interrupted());
476	>	}
477	>
478	>	/**
479	>	* arriveAndAwaitAdvance continues waiting if interrupted before waiting
480	>	*/
481	>	public void testArriveAndAwaitAdvanceAfterInterrupt()
482	>	throws InterruptedException {
483	>	final Phaser phaser = new Phaser();
484	>	assertEquals(0, phaser.register());
485	>	final CountDownLatch threadStarted = new CountDownLatch(1);
486	>
487	>	Thread t = newStartedThread(new CheckedRunnable() {
488	>	public void realRun() throws InterruptedException {
489	>	Thread.currentThread().interrupt();
490	>	assertEquals(0, phaser.register());
491	>	threadStarted.countDown();
492	>	assertTrue(Thread.currentThread().isInterrupted());
493	>	assertEquals(1, phaser.arriveAndAwaitAdvance());
494	>	assertTrue(Thread.currentThread().isInterrupted());
495	>	}});
496	>
497	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
498	>	waitForThreadToEnterWaitState(t, SMALL_DELAY_MS);
499	>	Thread.currentThread().interrupt();
500	>	assertEquals(1, phaser.arriveAndAwaitAdvance());
501	>	assertTrue(Thread.interrupted());
502	>	awaitTermination(t, SMALL_DELAY_MS);
503	>	}
504	>
505	>	/**
506	>	* arriveAndAwaitAdvance continues waiting if interrupted while waiting
507	>	*/
508	>	public void testArriveAndAwaitAdvanceBeforeInterrupt()
509	>	throws InterruptedException {
510	>	final Phaser phaser = new Phaser();
511	>	assertEquals(0, phaser.register());
512	>	final CountDownLatch threadStarted = new CountDownLatch(1);
513	>
514	>	Thread t = newStartedThread(new CheckedRunnable() {
515	>	public void realRun() throws InterruptedException {
516	>	assertEquals(0, phaser.register());
517	>	threadStarted.countDown();
518	>	assertFalse(Thread.currentThread().isInterrupted());
519	>	assertEquals(1, phaser.arriveAndAwaitAdvance());
520	>	assertTrue(Thread.currentThread().isInterrupted());
521	>	}});
522	>
523	>	assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS));
524	>	waitForThreadToEnterWaitState(t, SMALL_DELAY_MS);
525	>	t.interrupt();
526	>	Thread.currentThread().interrupt();
527	>	assertEquals(1, phaser.arriveAndAwaitAdvance());
528	>	assertTrue(Thread.interrupted());
529	>	awaitTermination(t, SMALL_DELAY_MS);
530		}
531
532		/**
533		* awaitAdvance atomically waits for all parties within the same phase to
534		* complete before continuing
535		*/
536	<	public void testAwaitAdvance4() {
537	<	final Phaser phaser = new Phaser(four);
538	<	final AtomicInteger phaseCount = new AtomicInteger(0);
539	<	for (int i = 0; i < four; i++) {
540	<	new Thread() {
541	<
542	<	public void run() {
543	<	int phase = phaser.arrive();
544	<	phaseCount.incrementAndGet();
545	<	getRunnable(LONG_DELAY_MS).run();
546	<	phaser.awaitAdvance(phase);
547	<	assertTrue(phaseCount.get() == four);
548	<	}
549	<	}.start();
550	<	}
536	>	public void testAwaitAdvance4() throws InterruptedException {
537	>	final Phaser phaser = new Phaser(4);
538	>	final AtomicInteger count = new AtomicInteger(0);
539	>	List<Thread> threads = new ArrayList<Thread>();
540	>	for (int i = 0; i < 4; i++)
541	>	threads.add(newStartedThread(new CheckedRunnable() {
542	>	public void realRun() {
543	>	for (int k = 0; k < 3; k++) {
544	>	assertEquals(2*k+1, phaser.arriveAndAwaitAdvance());
545	>	count.incrementAndGet();
546	>	assertEquals(2*k+1, phaser.arrive());
547	>	assertEquals(2*k+2, phaser.awaitAdvance(2*k+1));
548	>	assertEquals(count.get(), 4*(k+1));
549	>	}}}));
550	>
551	>	for (Thread thread : threads)
552	>	awaitTermination(thread, MEDIUM_DELAY_MS);
553		}
554
555		/**
556		* awaitAdvance returns the current phase
557		*/
558	<	public void testAwaitAdvance5() {
558	>	public void testAwaitAdvance5() throws InterruptedException {
559		final Phaser phaser = new Phaser(1);
560	<	int phase = phaser.awaitAdvance(phaser.arrive());
561	<	assertEquals(phase, phaser.getPhase());
562	<	phaser.register();
563	<	for (int i = 0; i < eight; i++) {
564	<	new Thread() {
565	<
566	<	public void run() {
567	<	getRunnable(SHORT_DELAY_MS).run();
560	>	assertEquals(1, phaser.awaitAdvance(phaser.arrive()));
561	>	assertEquals(1, phaser.getPhase());
562	>	assertEquals(1, phaser.register());
563	>	List<Thread> threads = new ArrayList<Thread>();
564	>	for (int i = 0; i < 8; i++) {
565	>	final CountDownLatch latch = new CountDownLatch(1);
566	>	final boolean goesFirst = ((i & 1) == 0);
567	>	threads.add(newStartedThread(new CheckedRunnable() {
568	>	public void realRun() throws InterruptedException {
569	>	if (goesFirst)
570	>	latch.countDown();
571	>	else
572	>	assertTrue(latch.await(SMALL_DELAY_MS, MILLISECONDS));
573		phaser.arrive();
574	<	}
575	<	}.start();
576	<	phase = phaser.awaitAdvance(phaser.arrive());
577	<	assertEquals(phase, phaser.getPhase());
574	>	}}));
575	>	if (goesFirst)
576	>	assertTrue(latch.await(SMALL_DELAY_MS, MILLISECONDS));
577	>	else
578	>	latch.countDown();
579	>	assertEquals(i + 2, phaser.awaitAdvance(phaser.arrive()));
580	>	assertEquals(i + 2, phaser.getPhase());
581		}
582	+	for (Thread thread : threads)
583	+	awaitTermination(thread, SMALL_DELAY_MS);
584		}
585
586		/**
587		* awaitAdvance returns when the phaser is externally terminated
588		*/
589	<	public void testAwaitAdvance6() {
589	>	public void testAwaitAdvance6() throws InterruptedException {
590		final Phaser phaser = new Phaser(3);
591	<	/*
592	<	* Start new thread. This thread waits a small amount of time
593	<	* and waits for the other two parties to arrive.  The party
594	<	* in the main thread arrives quickly so at best this thread
595	<	* waits for the second thread's party to arrive
596	<	*/
597	<	new Thread() {
598	<
599	<	public void run() {
600	<	getRunnable(SMALL_DELAY_MS).run();
601	<	int phase = phaser.awaitAdvance(phaser.arrive());
602	<	/*
603	<	* This point is reached when force termination is called in which phase = -1
604	<	*/
605	<	threadAssertTrue(phase < 0);
606	<	threadAssertTrue(phaser.isTerminated());
436	<	}
437	<	}.start();
438	<	/*
439	<	* This thread will cause the first thread run to wait, in doing so
440	<	* the main thread will force termination in which the first thread
441	<	* should exit peacefully as this one
442	<	*/
443	<	new Thread() {
444	<
445	<	public void run() {
446	<	getRunnable(LONG_DELAY_MS).run();
447	<	int p1 = phaser.arrive();
448	<	int phase = phaser.awaitAdvance(p1);
449	<	threadAssertTrue(phase < 0);
450	<	threadAssertTrue(phaser.isTerminated());
451	<	}
452	<	}.start();
453	<
454	<	phaser.arrive();
591	>	final CountDownLatch threadsStarted = new CountDownLatch(2);
592	>	final List<Thread> threads = new ArrayList<Thread>();
593	>	for (int i = 0; i < 2; i++) {
594	>	Runnable r = new CheckedRunnable() {
595	>	public void realRun() {
596	>	assertEquals(0, phaser.arrive());
597	>	threadsStarted.countDown();
598	>	assertTrue(phaser.awaitAdvance(0) < 0);
599	>	assertTrue(phaser.isTerminated());
600	>	assertTrue(phaser.getPhase() < 0);
601	>	assertEquals(0, phaser.getPhase() + Integer.MIN_VALUE);
602	>	assertEquals(3, phaser.getRegisteredParties());
603	>	}};
604	>	threads.add(newStartedThread(r));
605	>	}
606	>	threadsStarted.await();
607		phaser.forceTermination();
608	+	assertEquals(0, phaser.getPhase() + Integer.MIN_VALUE);
609	+	for (Thread thread : threads)
610	+	awaitTermination(thread, SMALL_DELAY_MS);
611	+	assertTrue(phaser.isTerminated());
612	+	assertTrue(phaser.getPhase() < 0);
613	+	assertEquals(3, phaser.getRegisteredParties());
614		}
615
616		/**
#	Line 464 | Line 622 | public class PhaserTest extends JSR166Te
622		Phaser phaser = new Phaser();
623		phaser.arriveAndAwaitAdvance();
624		shouldThrow();
625	<	} catch (IllegalStateException success) {
468	<	}
469	<	}
470	<
471	<	/**
472	<	* Interrupted arriveAndAwaitAdvance does not throw InterruptedException
473	<	*/
474	<	public void testArriveAndAwaitAdvance2() {
475	<	final Phaser phaser = new Phaser(2);
476	<	Thread th = new Thread() {
477	<	public void run() {
478	<	try {
479	<	phaser.arriveAndAwaitAdvance();
480	<	} catch (Exception failure) {
481	<	threadUnexpectedException(failure);
482	<	}
483	<	}
484	<	};
485	<
486	<	try {
487	<	th.start();
488	<	Thread.sleep(LONG_DELAY_MS);
489	<	th.interrupt();
490	<	Thread.sleep(LONG_DELAY_MS);
491	<	phaser.arrive();
492	<	} catch (InterruptedException failure) {
493	<	this.unexpectedException();
494	<	}
495	<	assertFalse(th.isInterrupted());
625	>	} catch (IllegalStateException success) {}
626		}
627
628		/**
#	Line 500 | Line 630 | public class PhaserTest extends JSR166Te
630		* number of arrived parties is the same number that is accounted
631		* for when the main thread awaitsAdvance
632		*/
633	<	public void testArriveAndAwaitAdvance3() {
633	>	public void testArriveAndAwaitAdvance3() throws InterruptedException {
634		final Phaser phaser = new Phaser(1);
635	<	final AtomicInteger arrivingCount = new AtomicInteger(0);
636	<	for (final Runnable run : getRunnables(six, SHORT_DELAY_MS)) {
637	<	new Thread() {
638	<
639	<	public void run() {
640	<	phaser.register();
641	<	run.run();
642	<	arrivingCount.getAndIncrement();
643	<	phaser.arrive();
644	<	}
645	<	}.start();
646	<	}
647	<	int phaseNumber = phaser.arriveAndAwaitAdvance();
648	<	arrivingCount.incrementAndGet();
649	<	//the + 1 adds to expectedArrive to account for the main threads arrival
650	<	int expectedArrived = phaseNumber > 0 ? phaseNumber * six + 1 : phaser.getArrivedParties() + 1;
651	<	threadAssertEquals(expectedArrived, arrivingCount.get());
652	<	}
653	<	// .. initially called, for n tasks via
654	<	private List<Runnable> getRunnables(int size, long wait) {
655	<	List<Runnable> list = new ArrayList<Runnable>();
656	<	for (int i = 0; i < size; i++) {
657	<	list.add(getRunnable(wait));
658	<	}
529	<	return list;
530	<	}
531	<
532	<	private Runnable getRunnable(final long wait) {
533	<	return new Runnable() {
534	<
535	<	public void run() {
536	<	try {
537	<	Thread.sleep(wait);
538	<	} catch (InterruptedException noop) {
539	<	// sleep interruption isn't a problem case for these example
540	<	} catch (Exception ex) {
541	<	threadUnexpectedException(ex);
542	<	}
543	<
544	<	}
545	<	};
635	>	final int THREADS = 3;
636	>	final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
637	>	final List<Thread> threads = new ArrayList<Thread>();
638	>	for (int i = 0; i < THREADS; i++)
639	>	threads.add(newStartedThread(new CheckedRunnable() {
640	>	public void realRun() throws InterruptedException {
641	>	assertEquals(0, phaser.register());
642	>	threadsStarted.countDown();
643	>	assertEquals(1, phaser.arriveAndAwaitAdvance());
644	>	}}));
645	>
646	>	assertTrue(threadsStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
647	>	long t0 = System.nanoTime();
648	>	while (phaser.getArrivedParties() < THREADS)
649	>	Thread.yield();
650	>	assertEquals(THREADS, phaser.getArrivedParties());
651	>	assertTrue(NANOSECONDS.toMillis(System.nanoTime() - t0) < SMALL_DELAY_MS);
652	>	for (Thread thread : threads)
653	>	assertTrue(thread.isAlive());
654	>	assertState(phaser, 0, THREADS + 1, 1);
655	>	phaser.arriveAndAwaitAdvance();
656	>	for (Thread thread : threads)
657	>	awaitTermination(thread, SMALL_DELAY_MS);
658	>	assertState(phaser, 1, THREADS + 1, THREADS + 1);
659		}
660
661		}

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines