| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more contributor license |
| * agreements. See the NOTICE file distributed with this work for additional information regarding |
| * copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance with the License. You may obtain a |
| * copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the License |
| * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
| * or implied. See the License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package org.apache.geode.internal.util.concurrent; |
| |
| import org.apache.geode.CancelCriterion; |
| |
| /** |
| * This is a type of {@link StoppableReentrantLock} that does not allow recursion |
| * |
| */ |
| public class StoppableNonReentrantLock extends StoppableReentrantLock { |
| /** |
| * Creates an instance. |
| * |
| * @param stopper the cancellation object |
| */ |
| public StoppableNonReentrantLock(CancelCriterion stopper) { |
| super(stopper); |
| } |
| |
| /** |
| * Creates an instance with the given fairness policy. |
| * |
| * @param fair <code>true</code> if this lock should use a fair ordering policy |
| * @param stopper the cancellation object |
| */ |
| public StoppableNonReentrantLock(boolean fair, CancelCriterion stopper) { |
| super(fair, stopper); |
| } |
| |
| /** |
| * @throws IllegalStateException if reentry is detected |
| */ |
| private void checkForRentry() { |
| if (isHeldByCurrentThread()) { |
| throw new IllegalStateException( |
| "Lock reentry is not allowed"); |
| } |
| } |
| |
| /** |
| * @throws IllegalStateException if the lock is already held by the current thread |
| */ |
| @Override |
| public void lock() { |
| checkForRentry(); |
| super.lock(); |
| } |
| |
| /** |
| * @throws IllegalStateException if the lock is already held by the current thread |
| */ |
| @Override |
| public void lockInterruptibly() throws InterruptedException { |
| checkForRentry(); |
| super.lockInterruptibly(); |
| } |
| |
| /** |
| * @throws IllegalStateException if the lock is already held by the current thread |
| */ |
| @Override |
| public boolean tryLock() { |
| checkForRentry(); |
| return super.tryLock(); |
| } |
| |
| /** |
| * @throws IllegalStateException if the lock is already held by the current thread |
| */ |
| @Override |
| public boolean tryLock(long timeoutMs) throws InterruptedException { |
| checkForRentry(); |
| return super.tryLock(timeoutMs); |
| } |
| } |