/*
 * Copyright (c) 2023 looly(loolly@aliyun.com)
 * Hutool is licensed under Mulan PSL v2.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 *          https://license.coscl.org.cn/MulanPSL2
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */

package org.dromara.hutool.core.thread.lock;

import java.util.concurrent.locks.ReentrantReadWriteLock;
import java.util.concurrent.locks.StampedLock;

/**
 * 锁相关工具
 *
 * @author looly
 * @since 5.2.5
 */
public class LockUtil {

	private static final NoLock NO_LOCK = new NoLock();

	/**
	 * 创建{@link StampedLock}锁
	 *
	 * @return {@link StampedLock}锁
	 */
	public static StampedLock createStampLock() {
		return new StampedLock();
	}

	/**
	 * 创建{@link ReentrantReadWriteLock}锁
	 *
	 * @param fair 是否公平锁
	 * @return {@link ReentrantReadWriteLock}锁
	 */
	public static ReentrantReadWriteLock createReadWriteLock(final boolean fair) {
		return new ReentrantReadWriteLock(fair);
	}

	/**
	 * 获取单例的无锁对象
	 *
	 * @return {@link NoLock}
	 */
	public static NoLock getNoLock(){
		return NO_LOCK;
	}
}
