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root/jsr166/jsr166/src/test/loops/LockLoops.java

Comparing jsr166/src/test/loops/LockLoops.java (file contents):
Revision 1.12 by jsr166, Wed Jun 8 20:01:45 2016 UTC vs.
Revision 1.13 by jsr166, Wed Jun 8 20:11:01 2016 UTC

#	Line 137 | Line 137 | public final class LockLoops {
137		System.out.print("StampedLockRead    ");
138		new StampedLockReadLoop().test(v, nthreads, iters);
139		Thread.sleep(10);
140	+
141	+	if (print)
142	+	System.out.print("StampedLockReadWrite");
143	+	new StampedLockReadLoop().test(v, nthreads, iters);
144	+	Thread.sleep(10);
145		}
146		}
147
#	Line 421 | Line 426 | public final class LockLoops {
426		}
427		sum += LoopHelpers.compute2(v);
428		}
429	+	return sum;
430	+	}
431	+	}
432	+
433	+	private static class StampedLockReadWriteLoop extends LockLoop {
434	+	private final StampedLock lock = new StampedLock();
435	+	final int loop(int n) {
436	+	int sum = 0;
437	+	while (n-- > 0) {
438	+	int x;
439	+	long stamp = lock.readLock();
440	+	try {
441	+	x = LoopHelpers.compute1(v);
442	+	}
443	+	finally {
444	+	lock.unlockRead(stamp);
445	+	}
446	+	stamp = lock.writeLock();
447	+	try {
448	+	v = x;
449	+	} finally {
450	+	lock.unlockWrite(stamp);
451	+	}
452	+	sum += LoopHelpers.compute2(v);
453	+	}
454		return sum;
455		}
456		}

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