tars源码漫谈第25篇------tc_thread_rwlock.h/tc_thread

tars源码漫谈第25篇------tc_thread_rwlock.h/tc_thread_rwlock.cpp（读写锁）

阅读量：4142 次

发布时间：2019-05-25

本文共 1398 字，大约阅读时间需要 4 分钟。

tc_thread_rwlock里面的类TC_ThreadRWLocker是对读写锁操作的封装。而读写锁，是linux中非常基本的概念，在某次面试的时候，我还被问到过。

来看看：

/** * Tencent is pleased to support the open source community by making Tars available. * * Copyright (C) 2016THL A29 Limited, a Tencent company. All rights reserved. * * Licensed under the BSD 3-Clause License (the "License"); you may not use this file except  * in compliance with the License. You may obtain a copy of the License at * * https://opensource.org/licenses/BSD-3-Clause * * 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. */#include "util/tc_thread_rwlock.h"#include 
   
    #include 
    
     #include 
     
      namespace tars{TC_ThreadRWLocker::TC_ThreadRWLocker(){    int ret = ::pthread_rwlock_init(&m_sect, NULL);    assert(ret == 0);    if(ret != 0)    {        throw TC_ThreadRW_Exception("[TC_ThreadRWLocker::TC_ThreadRWLocker] pthread_rwlock_init error", ret);    }}TC_ThreadRWLocker::~TC_ThreadRWLocker(){    int ret = ::pthread_rwlock_destroy(&m_sect);    if(ret != 0)    {        cerr<<"[TC_ThreadRWLocker::~TC_ThreadRWLocker] pthread_rwlock_destroy error:"<
      
       <

可以看到，是简单的封装，别无其他。

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