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Examples of StampedLock

jersey.repackaged.jsr166e.StampedLock
xclusively locked method long stamp = sl.writeLock(); try { x += deltaX; y += deltaY; } finally { sl.unlockWrite(stamp); } } double distanceFromOrigin() { // A read-only method long stamp = sl.tryOptimisticRead(); double currentX = x, currentY = y; if (!sl.validate(stamp)) { stamp = sl.readLock(); try { currentX = x; currentY = y; } finally { sl.unlockRead(stamp); } } return Math.sqrt(currentX * currentX + currentY * currentY); } void moveIfAtOrigin(double newX, double newY) { // upgrade // Could instead start with optimistic, not read mode long stamp = sl.readLock(); try { while (x == 0.0 && y == 0.0) { long ws = sl.tryConvertToWriteLock(stamp); if (ws != 0L) { stamp = ws; x = newX; y = newY; break; } else { sl.unlockRead(stamp); stamp = sl.writeLock(); } } } finally { sl.unlock(stamp); } } }} @since 1.8 @author Doug Lea

Examples of jersey.repackaged.jsr166e.StampedLock

            }
        }


        public boolean addAll(Collection<? extends E> c) {
            Object[] elements = c.toArray();
            final StampedLock lock = list.lock;
            long stamp = lock.writeLock();
            try {
                int s = size;
                int pc = list.count;
                list.rawAddAllAt(offset + s, elements);
                int added = list.count - pc;
                size = s + added;
                return added != 0;
            } finally {
                lock.unlockWrite(stamp);
            }
        }

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