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소켓 버퍼 크기 설정 2010/02/02

소켓 버퍼 크기 설정

Posted at 2010/02/02 12:03// Posted in network


//option= SO_RCVBUF |  SO_SNDBUF
int    SetSockBufSize(int option, int size)
{
       int ret=0;
       for (int trySize=size; trySize>=1024; trySize-=1024) {
               if (setsockopt(m_socket, SOL_SOCKET, option, (char FAR *)&trySize, sizeof(int))==SOCKET_ERROR) {
                       int err=WSAGetLastError();
                       if (err==WSAENOPROTOOPT || err==WSAEINVAL) break;
               } else {
                       int len=sizeof(len);
                       getsockopt(m_socket, SOL_SOCKET, option, (char FAR *)&ret, &len);
                       break;
               }
       }
       return ret;
}