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Server::Server(const char *ip, int port)
{//创建事件集合base = event_base_new();struct sockaddr_in server_addr;memset(&server_addr, 0, sizeof(server_addr));server_addr.sin_family = AF_INET;server_addr.sin_port = htons(port);server_addr.sin_addr.s_addr = inet_addr(ip);//创建监听对象listener = evconnlistener_new_bind(base, listener_cb, NULL, LEV_OPT_CLOSE_ON_FREE | LEV_OPT_REUSEABLE, 10, (struct sockaddr *)&server_addr, sizeof(server_addr));if (NULL == listener){cout << "evconnlistener_new_bind error" << endl;}cout << "服务器初始化成功 开始监听客户端" << endl;event_base_dispatch(base);       //监听集合
}//当有客户端发起连接的时候，会触发该函数
void Server::listener_cb(struct evconnlistener *listener, evutil_socket_t fd, struct sockaddr *addr, int socklen, void *arg)
{cout << "接受客户端的连接，fd = " << fd << endl;//创建工作线程来处理该客户端thread client_thread(client_handler, fd);client_thread.detach();    //线程分离，当线程运行结束后，自动释放资源
}void Server::client_handler(int fd)
{//创建集合struct event_base *base = event_base_new();//创建bufferevent对象struct bufferevent *bev = bufferevent_socket_new(base, fd, BEV_OPT_CLOSE_ON_FREE);if (NULL == bev){cout << "bufferevent_socket_new error" << endl;}//给bufferevent设置回调函数bufferevent_setcb(bev, read_cb, NULL, event_cb, NULL);//使能回调函数bufferevent_enable(bev, EV_READ);event_base_dispatch(base);    //监听集合（监听客户端是否有数据发送过来）event_base_free(base);cout << "线程退出、释放集合" << endl;
}void Server::read_cb(struct bufferevent *bev, void *ctx)
{char buf[1024] = {0};int size = bufferevent_read(bev, buf, sizeof(buf));if (size < 0){cout << "bufferevent_read error" << endl;}cout << buf << endl;Json::Reader reader;       //解析json对象Json::FastWriter writer;   //封装json对象Json::Value val;if (!reader.parse(buf, val))    //把字符串转换成 json 对象{cout << "服务器解析数据失败" << endl;}string cmd = val["cmd"].asString();if (cmd == "register")   //注册功能{server_register(bev, val);	}}void Server::event_cb(struct bufferevent *bev, short what, void *ctx)
{}Server::~Server()
{event_base_free(base);
}void Server::server_register(struct bufferevent *bev, Json::Value val)
{
}

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