org.evosuite.utils.SimpleCondition Maven / Gradle / Ivy

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/**
 * Copyright (C) 2010-2018 Gordon Fraser, Andrea Arcuri and EvoSuite
 * contributors
 *
 * This file is part of EvoSuite.
 *
 * EvoSuite is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3.0 of the License, or
 * (at your option) any later version.
 *
 * EvoSuite is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with EvoSuite. If not, see .
 */
package org.evosuite.utils;

import java.util.concurrent.locks.*;
public class SimpleCondition {
	private Lock lock;
	private Condition condition;
	private boolean wasSignaled = false;
	
	/**
	 * Constructor for SimpleCondition.
	 */
	public SimpleCondition() {
		this.lock = new ReentrantLock();
		this.condition = this.lock.newCondition();
		this.lock.lock();
	}
	
	/**
	 * awaitUninterruptibly
	 */
	public void awaitUninterruptibly() {
		this.condition.awaitUninterruptibly();
		this.lock.unlock();
	}
	
	/**
	 * signal
	 */
	public synchronized void signal() {
		this.lock.lock();

		try {
			this.condition.signal();
			this.wasSignaled = true;
		} finally {
			this.lock.unlock();
		}
	}

	/**
	 * wasSignaled
	 *
	 * @return a boolean.
	 */
	public synchronized boolean wasSignaled() {
		return this.wasSignaled;
	}
}