Examples with BooleanMutex com.alibaba.otter.shared.common.utils.lock.BooleanMutex used on opensource projects

Example 1 with BooleanMutex

use of com.alibaba.otter.shared.common.utils.lock.BooleanMutex in project otter by alibaba.

the class BooleanMutexTest method test_concurrent_true.

@Test
public void test_concurrent_true() {
    try {
        final BooleanMutex mutex = new BooleanMutex(true);
        final CountDownLatch count = new CountDownLatch(10);
        ExecutorService executor = Executors.newCachedThreadPool();
        for (int i = 0; i < 10; i++) {
            executor.submit(new Callable() {

                public Object call() throws Exception {
                    mutex.get();
                    count.countDown();
                    return null;
                }
            });
        }
        count.await();
        executor.shutdown();
    } catch (InterruptedException e) {
        want.fail();
    }
}

Example 2 with BooleanMutex

use of com.alibaba.otter.shared.common.utils.lock.BooleanMutex in project otter by alibaba.

the class DistributedLock method lock.

/**
     * 尝试获取锁操作，阻塞式可被中断
     */
public void lock() throws InterruptedException, KeeperException {
    // 可能初始化的时候就失败了
    if (exception != null) {
        throw exception;
    }
    if (interrupt != null) {
        throw interrupt;
    }
    if (other != null) {
        throw new NestableRuntimeException(other);
    }
    if (isOwner()) {
        // 锁重入
        return;
    }
    BooleanMutex mutex = new BooleanMutex();
    acquireLock(mutex);
    mutex.get();
    if (exception != null) {
        unlock();
        throw exception;
    }
    if (interrupt != null) {
        unlock();
        throw interrupt;
    }
    if (other != null) {
        unlock();
        throw new NestableRuntimeException(other);
    }
}

Example 3 with BooleanMutex

use of com.alibaba.otter.shared.common.utils.lock.BooleanMutex in project otter by alibaba.

the class BooleanMutexTest method test_init_false.

@Test
public void test_init_false() {
    final BooleanMutex mutex = new BooleanMutex(false);
    try {
        final CountDownLatch count = new CountDownLatch(1);
        ExecutorService executor = Executors.newCachedThreadPool();
        executor.submit(new Callable() {

            public Object call() throws Exception {
                Thread.sleep(1000);
                mutex.set(true);
                count.countDown();
                return null;
            }
        });
        // 会被阻塞，等异步线程释放锁对象
        mutex.get();
        count.await();
        executor.shutdown();
    } catch (InterruptedException e) {
        want.fail();
    }
}

Example 4 with BooleanMutex

use of com.alibaba.otter.shared.common.utils.lock.BooleanMutex in project otter by alibaba.

the class BooleanMutexTest method test_concurrent_false.

@Test
public void test_concurrent_false() {
    try {
        // 初始为false
        final BooleanMutex mutex = new BooleanMutex(false);
        final CountDownLatch count = new CountDownLatch(10);
        ExecutorService executor = Executors.newCachedThreadPool();
        for (int i = 0; i < 10; i++) {
            executor.submit(new Callable() {

                public Object call() throws Exception {
                    // 被阻塞
                    mutex.get();
                    count.countDown();
                    return null;
                }
            });
        }
        Thread.sleep(1000);
        mutex.set(true);
        count.await();
        executor.shutdown();
    } catch (InterruptedException e) {
        want.fail();
    }
}