Examples with StampedLock java.util.concurrent.locks.StampedLock used on opensource projects

Example 16 with StampedLock

use of java.util.concurrent.locks.StampedLock in project java8-tutorial by winterbe.

the class Lock6 method main.

public static void main(String[] args) {
    ExecutorService executor = Executors.newFixedThreadPool(2);
    StampedLock lock = new StampedLock();
    executor.submit(() -> {
        long stamp = lock.readLock();
        try {
            if (count == 0) {
                stamp = lock.tryConvertToWriteLock(stamp);
                if (stamp == 0L) {
                    System.out.println("Could not convert to write lock");
                    stamp = lock.writeLock();
                }
                count = 23;
            }
            System.out.println(count);
        } finally {
            lock.unlock(stamp);
        }
    });
    ConcurrentUtils.stop(executor);
}