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root/jsr166/jsr166/src/main/java/util/concurrent/CountDownLatch.java

Comparing jsr166/src/main/java/util/concurrent/CountDownLatch.java (file contents):
Revision 1.16 by dl, Tue Dec 30 15:47:48 2003 UTC vs.
Revision 1.17 by dl, Wed Dec 31 21:30:00 2003 UTC

#	Line 129 | Line 129 | public class CountDownLatch {
129		*/
130		private static final class Sync extends AbstractQueuedSynchronizer {
131		Sync(int count) {
132	<	set(count);
132	>	setState(count);
133		}
134
135	<	public int acquireSharedState(boolean isQueued, int acquires) {
136	<	return get() == 0? 1 : -1;
135	>	int getCount() {
136	>	return getState();
137	>	}
138	>
139	>	public int tryAcquireSharedState(boolean isQueued, int acquires) {
140	>	return getState() == 0? 1 : -1;
141		}
142
143		public boolean releaseSharedState(int releases) {
144		// Decrement count; signal when transition to zero
145	<	int c;
146	<	while ( (c = get()) > 0 && !compareAndSet(c, c-1))
147	<	;
148	<	return c == 1;
145	>	for (;;) {
146	>	int c = getState();
147	>	if (c == 0)
148	>	return false;
149	>	if (compareAndSetState(c, c-1))
150	>	return c == 1;
151	>	}
152		}
153		}
154
#	Line 255 | Line 262 | public class CountDownLatch {
262		* @return the current count.
263		*/
264		public long getCount() {
265	<	return sync.get();
265	>	return sync.getCount();
266		}
267		}

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