How to use

lock

method

in

co.cask.coopr.common.zookeeper.lib.ReentrantDistributedLock

 @Override
 public void run() {
  lock2.lock();
  try {
   lockAcquired.countDown();
  } finally {
   lock2.unlock();
  }
 }
};

 @Override
 public void run() {
  lock.lock();
  try {
   acquired.countDown();
  } finally {
   lock.unlock();
  }
 }
};

@Test (timeout = 20000)
public void testReentrant() {
 // Test the lock is reentrant from the same thread
 ZKClientService zkClient = createZKClient();
 try {
  ReentrantDistributedLock lock = new ReentrantDistributedLock(zkClient, "reentrant");
  lock.lock();
  try {
   try {
    lock.lock();
   } finally {
    lock.unlock();
   }
  } finally {
   lock.unlock();
  }
 } finally {
  zkClient.stopAndWait();
 }
}

lock.lock();
try {
 final CountDownLatch lockAcquired = new CountDownLatch(1);

lock.lock();
try {
 t.start();

final ReentrantDistributedLock lock2 = new ReentrantDistributedLock(zkClient2, "/multiInterrupt");
lock1.lock();
lock2.lock();
lock2.unlock();

lock1.lock();
try {
 lock1.lock();
 lock1.unlock();

lock.lock();
try {
 t.start();

lock1.lock();
try {
 t.start();