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return 0;
}
return 1;
}
void RunService()
{
SOCKET sListen;
if(InitAndListen(sListen) == 0)
{
return;
}
printf(“Server wait for client connect…\n”);
fd_set fdSocket;
FD_ZERO(&fdSocket);
//Add the listen socket to FD_set : fdSocket
FD_SET(sListen,&fdSocket);
while (true)
{
//assign the fdSocket to fdRead to select
fd_set fdRead = fdSocket;
timeval t;
t.tv_sec = 2;
t.tv_usec = 1;
boost::timer elapsed;
int nRet = select(NULL,&fdRead,NULL,NULL,NULL);//设置timeout为NULL,那么select会一直等下去,最多支持64个
printf("select elapsed: %f s\n", elapsed.elapsed());
if (nRet <= 0)
{
printf("select failed/n");
break;
}
for(int i=0;i<(int)fdSocket.fd_count;i++)
{
//check whether the socket is set
if(FD_ISSET(fdSocket.fd_array[i],&fdRead))
{
//New connect come
if(fdSocket.fd_array[i] == sListen)
{
sockaddr_in addrRemote;
int nAddrLen=sizeof(addrRemote);
SOCKET sNew=::accept(sListen,(sockaddr*)&addrRemote,&nAddrLen);
FD_SET(sNew,&fdSocket);//Put it to fdSocket sets
printf("Client %s connected\n",inet_ntoa(addrRemote.sin_addr));
}
else
{
char buffer[1024];
memset(buffer,0,1024);
int nRecev = recv(fdSocket.fd_array[i],buffer,
1024,0);
if (nRecev > 0)
{
printf("Received Client Msg:%s\n",buffer);
//echo back
::send(fdSocket.fd_array[i],buffer,
strlen(buffer),0);
}
else
{
printf("client disconnected\n");
//Close the socket and clear from the sets
closesocket(fdSocket.fd_array[i]);
FD_CLR(fdSocket.fd_array[i],&fdSocket);
}
}
}
}
}
}
int _tmain(int argc, _TCHAR* argv[])
{
RunService();
return 0;
}
这个服务器很简单,就是收到客户连接,如果客户有数据发过来,就再发回去。
客户端:
int Test1()
{
WSADATA wsaData;
int iResult = WSAStartup(MAKEWORD(2, 2), &wsaData);
if (iResult != NO_ERROR) {
wprintf(L"WSAStartup function failed with error: %d\n", iResult);
return 1;
}
//----------------------
// Create a SOCKET for connecting to server
SOCKET ConnectSocket;
ConnectSo


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