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   源码介绍

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libevent源码深度剖析

目录
libevent源码深度剖析......................................................................................................................1
目录 ..................................................................................................................................................3
一 序幕.............................................................................................................................................5
1 前言...............................................................................................................................5
2 Libevent简介 .................................................................................................................5
3 学习的好处...................................................................................................................5
二Reactor模式..................................................................................................................................6
1 Reactor的事件处理机制 ...............................................................................................6
2 Reactor模式的优点 .......................................................................................................6
3 Reactor模式框架 ...........................................................................................................6
4 Reactor事件处理流程 ...................................................................................................8
5 小结...............................................................................................................................9
三 基本使用场景和事件流程.......................................................................................................10
1 前言.............................................................................................................................10
2 基本应用场景.............................................................................................................10
3 实例代码.....................................................................................................................11
4 事件处理流程.............................................................................................................11
5 小结.............................................................................................................................12
四 libevent源代码文件组织..........................................................................................................13
1 前言.............................................................................................................................13
2 源代码组织结构.........................................................................................................13
3 小结.............................................................................................................................14
五 libevent的核心：事件event .....................................................................................................15
1 libevent的核心-event...................................................................................................15
2 libevent对event的管理................................................................................................16
3 事件设置的接口函数.................................................................................................17
4 小结.............................................................................................................................18
六 初见事件处理框架...................................................................................................................19
1 事件处理框架-event_base..........................................................................................19
2 创建和初始化event_base ...........................................................................................20
3 接口函数.....................................................................................................................20
4 小节.............................................................................................................................23
七 事件主循环...............................................................................................................................24
1 阶段性的胜利.............................................................................................................24
2 事件处理主循环.........................................................................................................24
3 I/O和Timer事件的统一...............................................................................................27
4 I/O和Signal事件的统一 ..............................................................................................27
5 小节.............................................................................................................................27
八 集成信号处理...........................................................................................................................28
1 集成策略——使用socket pair ...................................................................................28
3
2 集成到事件主循环——通知event_base ...................................................................29
4 evsignal_info结构体....................................................................................................30
5 注册、注销signal事件...............................................................................................30
5 小节.............................................................................................................................31
九 集成定时器事件.......................................................................................................................32
1 集成到事件主循环.....................................................................................................32
2 Timer小根堆................................................................................................................33
3 小节.............................................................................................................................34
十 支持I/O多路复用技术 .............................................................................................................35
1 统一的关键.................................................................................................................35
2 设置I/O demultiplex机制 ...........................................................................................35
3 小节.............................................................................................................................37
十一 时间管理...............................................................................................................................38
1 初始化检测.................................................................................................................38
2 时间缓存.....................................................................................................................38
3 时间校正.....................................................................................................................40
4 小节.............................................................................................................................41
十二 让libevent支持多线程..........................................................................................................42
1 错误使用示例.............................................................................................................42
2 支持多线程的几种模式.............................................................................................42
3 例子——memcached..................................................................................................43
4 小节.............................................................................................................................44