基于WinSocket的单线程Server的实现

时间：2011/9/3 15:14:11 点击：

　　核心提示：#include iostream#include 'winsock2.h'#include windows.husing namespace std;int main(){ //启动WS2_32.d...

#include <iostream> #include "winsock2.h" #include <windows.h> using namespace std; int main(){ //启动WS2_32.dll WSADATA wsaData; int nResult = WSAStartup(MAKEWORD(2,2),&wsaData); if(nResult != NO_ERROR){ cout << "Error at WSAStartup" << endl; return 1; } //创建一个socket SOCKET m_socket; m_socket = socket(AF_INET, //协议族 SOCK_STREAM, //SOCKET类型 IPPROTO_TCP); //此socket使用的协议 if(m_socket == INVALID_SOCKET){ cout << "Error at socket " << WSAGetLastError() << endl; WSACleanup(); return 1; } //Bind a socket sockaddr_in service; service.sin_family = AF_INET;//协议族 service.sin_addr.s_addr = inet_addr("127.0.0.1");//IP地址 service.sin_port = htons(27002); //端口号 //将socket与指定的地址绑定 if(bind(m_socket,(SOCKADDR*)&service,sizeof(service)) == SOCKET_ERROR){ cout << "Error at bind " << endl; closesocket(m_socket); return 1; } //监听socket if(listen(m_socket,20) == SOCKET_ERROR){ cout << "Error on listen" << endl; return 1; } //接受一个socket连接 SOCKET AcceptSocket; cout << "Waiting for client to connect" << endl; while (1) { AcceptSocket = SOCKET_ERROR; while (AcceptSocket == SOCKET_ERROR) { AcceptSocket = accept(m_socket,NULL,NULL); } cout << "client connected!" << endl; m_socket = AcceptSocket; break; } int nSendBytes = 0; int nRecvBytes = 0; char pSendBytes[32] = "Server:Send data"; char pRecvBytes[32] = ""; //从socket接收数据. nRecvBytes = recv(m_socket,pRecvBytes,32,0); cout << "Num of receive :" << nRecvBytes << endl; cout << pRecvBytes << endl; //向socket发送数据。 nSendBytes = send(m_socket,pSendBytes,32,0); if (nSendBytes == SOCKET_ERROR) { int nErr = WSAGetLastError(); WSAEACCES; cout << nErr << endl; }else cout <<"Num of send : " << nSendBytes << endl; //清除WS2_32.dll Sleep(5000); WSACleanup(); return 0; }