c++ tcp服务端V1

Server.cpp文件点击查看代码

#include "Server.h"
#include <iostream>
#include <ws2tcpip.h>#pragma comment(lib, "ws2_32.lib")
using namespace std;Server::Server(const std::string& host, uint16_t port): m_address(host), m_port(port), m_fd(INVALID_SOCKET) {
// 初始化网络库WSADATA data;if (WSAStartup(MAKEWORD(2, 2), &data) != 0) {cerr << "socket error" << WSAGetLastError() << endl;return;}// 创建socketm_fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);if (m_fd == INVALID_SOCKET) {cerr << "socket error: " << WSAGetLastError() << endl;return;}// 绑定ip 端口struct sockaddr_in addr;addr.sin_family = AF_INET;addr.sin_port = htonl(port);  // 大端和小端存储, 本地是小端inet_pton(AF_INET, host.data(), &addr.sin_addr);  // ip地址if (bind(m_fd, (struct sockaddr *) &addr, sizeof(addr)) == SOCKET_ERROR) {cerr << "bind error: " << WSAGetLastError() << endl;return;}if (listen(m_fd, 10) == SOCKET_ERROR) {cerr << "listen error: " << WSAGetLastError() << endl;return;};
}
Server::~Server()
{
WSACleanup();
}
int Server::run() {char buf[BUFSIZ];while (m_running) {// 接受连接struct sockaddr_in client_addr;socklen_t addr_len = sizeof(client_addr);SOCKET sock = accept(m_fd, (struct sockaddr *)&client_addr, &addr_len);
//        SOCKET sock = accept(m_fd, NULL, NULL);if (sock == INVALID_SOCKET) {cerr << "accept error: " << WSAGetLastError() << endl;continue;}// 读取客户端ipchar client_ip[INET_ADDRSTRLEN];inet_ntop(AF_INET, &client_addr.sin_addr, client_ip, INET_ADDRSTRLEN);cout << " Client connected from: " << client_ip << endl;int nread = recv(sock, buf, BUFSIZ, 0);if (nread > 0 ) {printf("data is %.*s nread is:%d\n", nread, buf, nread);}else if (nread <=0) {cout << "client close" << endl;closesocket(sock);}}return 0;
}int main() {Server server = Server("127.0.0.1", 8080);server.run();
}