文章目錄

• • 1 將客戶端移植到Linux和MAC OS
  • • 1.1 概述
    • 1.2 客戶端移植代碼

1 將客戶端移植到Linux和MAC OS

1.1 概述

我們這里把將客戶端移植到Linux和MAC OS，由于Linux和MAC OS都是從Unix繼承而來，所以兩者關于socket部分操作接口完全相同。我們只需要關注和windows之間的差異即可。

1.2 客戶端移植代碼

客戶端移植代碼如下：
client.cpp：

#ifdef _WIN32#define WIN32_LEAN_AND_MEAN#include<windows.h>#include<WinSock2.h>#pragma comment(lib,"ws2_32.lib") #else#include<unistd.h> //uni std#include<arpa/inet.h>#include<string.h>#define SOCKET int#define INVALID_SOCKET (SOCKET)(~0)#define SOCKET_ERROR (-1) #endif#include<stdio.h> #include<thread>enum CMD {CMD_LOGIN,CMD_LOGIN_RESULT,CMD_LOGOUT,CMD_LOGOUT_RESULT,CMD_NEW_USER_JOIN,CMD_ERROR };struct DataHeader {short dataLength;short cmd; };//DataPackage struct Login : public DataHeader {Login(){dataLength = sizeof(Login);cmd = CMD_LOGIN;}char userName[32];char PassWord[32]; };struct LoginResult : public DataHeader {LoginResult(){dataLength = sizeof(LoginResult);cmd = CMD_LOGIN_RESULT;result = 0;}int result; };struct Logout : public DataHeader {Logout(){dataLength = sizeof(Logout);cmd = CMD_LOGOUT;}char userName[32]; };struct LogoutResult : public DataHeader {LogoutResult(){dataLength = sizeof(LogoutResult);cmd = CMD_LOGOUT_RESULT;result = 0;}int result; };struct NewUserJoin : public DataHeader {NewUserJoin(){dataLength = sizeof(NewUserJoin);cmd = CMD_NEW_USER_JOIN;scok = 0;}int scok; };int processor(SOCKET _cSock) {//緩沖區char szRecv[4096] = {};// 5 接收客戶端數據int nLen = (int)recv(_cSock, szRecv, sizeof(DataHeader), 0);DataHeader* header = (DataHeader*)szRecv;if (nLen <= 0){printf("與服務器斷開連接，任務結束。\n");return -1;}switch (header->cmd){case CMD_LOGIN_RESULT:{recv(_cSock, szRecv + sizeof(DataHeader), header->dataLength - sizeof(DataHeader), 0);LoginResult* login = (LoginResult*)szRecv;printf("收到服務端消息：CMD_LOGIN_RESULT,數據長度：%d\n", login->dataLength);}break;case CMD_LOGOUT_RESULT:{recv(_cSock, szRecv + sizeof(DataHeader), header->dataLength - sizeof(DataHeader), 0);LogoutResult* logout = (LogoutResult*)szRecv;printf("收到服務端消息：CMD_LOGOUT_RESULT,數據長度：%d\n", logout->dataLength);}break;case CMD_NEW_USER_JOIN:{recv(_cSock, szRecv + sizeof(DataHeader), header->dataLength - sizeof(DataHeader), 0);NewUserJoin* userJoin = (NewUserJoin*)szRecv;printf("收到服務端消息：CMD_NEW_USER_JOIN,數據長度：%d\n", userJoin->dataLength);}break;}return 0; } bool g_bRun = true; void cmdThread(SOCKET sock) {while (true){char cmdBuf[256] = {};scanf("%s", cmdBuf);if (0 == strcmp(cmdBuf, "exit")){g_bRun = false;printf("退出cmdThread線程\n");break;}else if (0 == strcmp(cmdBuf, "login")){Login login;strcpy(login.userName, "lyd");strcpy(login.PassWord, "lydmm");send(sock, (const char*)&login, sizeof(Login), 0);}else if (0 == strcmp(cmdBuf, "logout")){Logout logout;strcpy(logout.userName, "lyd");send(sock, (const char*)&logout, sizeof(Logout), 0);}else {printf("不支持的命令。\n");}} }int main() { #ifdef _WIN32//啟動Windows socket 2.x環境WORD ver = MAKEWORD(2, 2);WSADATA dat;WSAStartup(ver, &dat); #endif//------------//-- 用Socket API建立簡易TCP客戶端// 1 建立一個socketSOCKET _sock = socket(AF_INET, SOCK_STREAM, 0);if (INVALID_SOCKET == _sock){printf("錯誤，建立Socket失敗...\n");}else {printf("建立Socket成功...\n");}// 2 連接服務器 connectsockaddr_in _sin = {};_sin.sin_family = AF_INET;_sin.sin_port = htons(4567); #ifdef _WIN32_sin.sin_addr.S_un.S_addr = inet_addr("127.0.0.1"); #else_sin.sin_addr.s_addr = inet_addr("192.168.74.1"); #endifint ret = connect(_sock, (sockaddr*)&_sin, sizeof(sockaddr_in));if (SOCKET_ERROR == ret){printf("錯誤，連接服務器失敗...\n");}else {printf("連接服務器成功...\n");}//啟動線程std::thread t1(cmdThread, _sock);t1.detach();while (g_bRun){fd_set fdReads;FD_ZERO(&fdReads);FD_SET(_sock, &fdReads);timeval t = { 1,0 };int ret = select(_sock + 1, &fdReads, 0, 0, &t);if (ret < 0){printf("select任務結束1\n");break;}if (FD_ISSET(_sock, &fdReads)){FD_CLR(_sock, &fdReads);if (-1 == processor(_sock)){printf("select任務結束2\n");break;}}//printf("空閑時間處理其它業務..\n");//Sleep(1000);}// 7 關閉套節字closesocket #ifdef _WIN32closesocket(_sock);//清除Windows socket環境WSACleanup(); #elseclose(_sock); #endifprintf("已退出。\n");getchar();return 0; }

編譯選項：g++ client.cpp -std=c++11 -pthread -o client。

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參考資料：

C++ 百萬并發網絡通信引擎架構與實現 （服務端、客戶端、跨平臺） Version 1.0

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