[项目][WebServer][HttpServer]详细讲解

• 写入出错处理
  • Send Response时，如果对方不读了，继续写入就没有意义了
  • 此时写入出现问题，系统会给进程发送SIGPIPE信号
  • HttpServer初始化时，要将SIGPIPE进行忽略
    • 如果不忽略，在向对端写入的时候，如果对端关闭链接，而Server正在写，可能直接崩溃Server

class HttpServer
{
public:HttpServer(int port = PORT): _port(port), _stop(false){}void Init(){signal(SIGPIPE, SIG_IGN);}void Loop(int threadNum = THREAD_POOL_NUM){TcpServer *tsvr = TcpServer::GetInstance(_port);LOG(INFO, "Loop Begin");while(!_stop){struct sockaddr_in peer;socklen_t len = sizeof(peer);int sock = accept(tsvr->Sock(), (struct sockaddr *)&peer, &len);if(sock < 0){continue;}LOG(INFO, "Get a new link");Task task(sock);ThreadPool::GetInstance(threadNum)->Push(task);}}private:uint16_t _port;bool _stop;
};