Package java.util.concurrent.locks.ReentrantReadWriteLock

Examples of java.util.concurrent.locks.ReentrantReadWriteLock.ReadLock.tryLock()

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        {
          ReadLock readLock = job.getTrunkLock().readLock();
         
          try
          {
            if (readLock.tryLock(10, TimeUnit.MINUTES))
            {
              try
              {
                export(resultPool,destfile,true,true, job.getCursorMap());
              }
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    @Override
    public LockHandle aquireReadLock() {
        final ReadLock readLock = readWriteLock.readLock();
        boolean success;
        try {
            success = readLock.tryLock() || readLock.tryLock(AQUIRE_LOCK_TIMEOUT, TimeUnit.MILLISECONDS);
        } catch (InterruptedException ex) {
            success = false;
        }
        IllegalStateAssertion.assertTrue(success, "Cannot obtain profile read lock in time");
        return new LockHandle() {
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    @Override
    public LockHandle aquireReadLock() {
        final ReadLock readLock = readWriteLock.readLock();
        boolean success;
        try {
            success = readLock.tryLock() || readLock.tryLock(AQUIRE_LOCK_TIMEOUT, TimeUnit.MILLISECONDS);
        } catch (InterruptedException ex) {
            success = false;
        }
        IllegalStateAssertion.assertTrue(success, "Cannot obtain profile read lock in time");
        return new LockHandle() {
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        }

        private ReadLock readLock(long timeout, TimeUnit unit) {
            ReadLock lock = rwlock.readLock();
            try {
                if (!lock.tryLock() && !lock.tryLock(timeout, unit))
                    throw new PermitStateTimeoutException("Cannot aquire read lock for [" + key.getName() + "] in time", key, timeout, unit);
            } catch (InterruptedException ex) {
                throw new IllegalStateException(ex);
            }
            return lock;
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        }

        private ReadLock readLock(long timeout, TimeUnit unit) {
            ReadLock lock = rwlock.readLock();
            try {
                if (!lock.tryLock() && !lock.tryLock(timeout, unit))
                    throw new PermitStateTimeoutException("Cannot aquire read lock for [" + key.getName() + "] in time", key, timeout, unit);
            } catch (InterruptedException ex) {
                throw new IllegalStateException(ex);
            }
            return lock;
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