59 lines
2.0 KiB
Java
59 lines
2.0 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.tomcat.dbcp.pool2.impl;
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import java.util.Collection;
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import java.util.concurrent.locks.Condition;
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import java.util.concurrent.locks.ReentrantLock;
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/**
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* This sub-class was created to expose the waiting threads so that they can be
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* interrupted when the pool using the queue that uses this lock is closed. The
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* class is intended for internal use only.
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* <p>
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* This class is intended to be thread-safe.
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* </p>
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*
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* @since 2.0
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*/
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class InterruptibleReentrantLock extends ReentrantLock {
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private static final long serialVersionUID = 1L;
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/**
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* Create a new InterruptibleReentrantLock with the given fairness policy.
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*
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* @param fairness true means threads should acquire contended locks as if
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* waiting in a FIFO queue
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*/
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public InterruptibleReentrantLock(final boolean fairness) {
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super(fairness);
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}
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/**
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* Interrupt the threads that are waiting on a specific condition
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*
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* @param condition the condition on which the threads are waiting.
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*/
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public void interruptWaiters(final Condition condition) {
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final Collection<Thread> threads = getWaitingThreads(condition);
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for (final Thread thread : threads) {
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thread.interrupt();
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}
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}
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}
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