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Reactor

模仿muduo实现的reactor回声服务器。

类图:

网络处理内部实际分为epoll部分的事件监听与发现,Epoll与Channel负责处理。这就相当于fd有两个侧面,其中一个封装为Socket,另一个封装为Channel.

Connector负责具体的数据收发。 Acceptor负责新连接建立。 这两个对象在收到事件时组装或解析数据,然后将加工好的数据交给外部处理。

消息接收流程:Epoll -> EventLoop->Channel::handleEvent->Connector->::recv->TcpServer->EchoServer(工作线程异步处理)

新连接流程:Epoll -> EventLoop->Channel->Acceptor-> TcpServer(通过策略分配到某一个EventLoop中)->EchoServer

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