Examples of java.util.concurrent.locks.Lock.lockInterruptibly()

java.util.concurrent.locks.Lock.lockInterruptibly()
Acquires the lock unless the current thread is {@linkplain Thread#interrupt interrupted}.
Acquires the lock if it is available and returns immediately.
If the lock is not available then the current thread becomes disabled for thread scheduling purposes and lies dormant until one of two things happens:
- The lock is acquired by the current thread; or
- Some other thread {@linkplain Thread#interrupt interrupts} thecurrent thread, and interruption of lock acquisition is supported.
If the current thread:
- has its interrupted status set on entry to this method; or
- is {@linkplain Thread#interrupt interrupted} while acquiring thelock, and interruption of lock acquisition is supported,
then {@link InterruptedException} is thrown and the current thread'sinterrupted status is cleared.
Implementation Considerations
The ability to interrupt a lock acquisition in some implementations may not be possible, and if possible may be an expensive operation. The programmer should be aware that this may be the case. An implementation should document when this is the case.
An implementation can favor responding to an interrupt over normal method return.
A {@code Lock} implementation may be able to detecterroneous use of the lock, such as an invocation that would cause deadlock, and may throw an (unchecked) exception in such circumstances. The circumstances and the exception type must be documented by that {@code Lock} implementation. @throws InterruptedException if the current thread isinterrupted while acquiring the lock (and interruption of lock acquisition is supported)


               // The lock will be initialized when the first connection listener is obtained
               Lock lock = (Lock)transactionSynchronizationRegistry.getResource(LockKey.INSTANCE);
               try
               {
                  lock.lockInterruptibly();
               }
               catch (Throwable t)
               {
                  rethrowAsSystemException("Unable to begin transaction with JCA lazy enlistment scenario", 
                                           tx, t);

View Full Code Here


               // The lock will be initialized when the first connection listener is obtained
               Lock lock = (Lock)transactionSynchronizationRegistry.getResource(LockKey.INSTANCE);
               try
               {
                  lock.lockInterruptibly();
               }
               catch (Throwable t)
               {
                  rethrowAsSystemException("Unable to begin transaction with JCA lazy enlistment scenario", 
                                           tx, t);

View Full Code Here

      TransactionSynchronizationRegistry tsr = getTransactionSynchronizationRegistry();
      Lock lock = getLock();
      
      try
      {
         lock.lockInterruptibly();
      }
      catch (InterruptedException ie)
      {
         throw new ResourceException(bundle.unableObtainLock(), ie);
      }

View Full Code Here


      TransactionSynchronizationRegistry tsr = getTransactionSynchronizationRegistry();
      Lock lock = getLock();
      try
      {
         lock.lockInterruptibly();
      }
      catch (InterruptedException ie)
      {
         throw new ResourceException(bundle.unableObtainLock(), ie);
      }

View Full Code Here


               // The lock may need to be initialized if we are in the first lazy enlistment
               Lock lock = getLock();
               try
               {
                  lock.lockInterruptibly();
               }
               catch (Throwable t)
               {
                  rethrowAsSystemException("Unable to begin transaction with JCA lazy enlistment scenario", 
                                           tx, t);

View Full Code Here

      {
         Lock lock = existing.getLock();
         
         try
         {
            lock.lockInterruptibly();
         }
         catch (InterruptedException ie)
         {
            this.log.info(ie);
            return;

View Full Code Here

        This is predicated on the assumption that readLocks CAN successfully acquire
        without contention. If this is not true, this method will fail.
        */
        final ReadWriteLock rwLock = new ReentrantZkReadWriteLock2(baseLockPath,zkSessionManager);
        Lock writeLock = rwLock.writeLock();
        writeLock.lockInterruptibly();
        Future<Void> future;
        try{
            future = testService.submit(new Callable<Void>() {
                @Override
                public Void call() throws Exception {

View Full Code Here

        This is predicated on the assumption that readLocks CAN successfully acquire
        without contention. If this is not true, this method will fail.
        */
        ReadWriteLock rwLock = new ReentrantZkReadWriteLock2(baseLockPath,zkSessionManager);
        Lock writeLock = rwLock.writeLock();
        writeLock.lockInterruptibly();
        Future<Void> future;
        try{
            future = testService.submit(new Callable<Void>() {
                @Override
                public Void call() throws Exception {

View Full Code Here

        This is predicated on the assumption that readLocks CAN successfully acquire
        without contention. If this is not true, this method will fail.
        */
        ReadWriteLock rwLock = new ReentrantZkReadWriteLock2(baseLockPath,zkSessionManager);
        Lock writeLock = rwLock.writeLock();
        writeLock.lockInterruptibly();
        Future<Void> future;
        try{
            future = testService.submit(new Callable<Void>() {
                @Override
                public Void call() throws Exception {

View Full Code Here


    @Test(timeout = 1000l)
    public void testLockInterruptiblyWorksDifferentInstances() throws Exception{
        final CountDownLatch latch = new CountDownLatch(1);
        Lock firstLock = new ReentrantZkLock2(baseLockPath, zkSessionManager);
        firstLock.lockInterruptibly();
        Future<Void>errorFuture;
        try{
            errorFuture = testService.submit(new Callable<Void>() {
                @Override
                public Void call() throws Exception {

View Full Code Here

0 1 2 3 4 5 6

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.