int SocketClient::connectTimeOutForWin(SOCKET &connect_fd, const int &timeout, const sockaddr_in &server)

{

    int error=-, len;

    len = sizeof(int);

    timeval tm;

    fd_set set;

    unsigned long ul = ;

     //设置为非阻塞模式

    ioctlsocket(connect_fd,FIONBIO,&ul);

    bool ret = false;

    if( connect(connect_fd, (struct sockaddr *)&server, sizeof(struct sockaddr)) == -)

    {

        tm.tv_sec = timeout;

        tm.tv_usec = ;

        FD_ZERO(&set);

        FD_SET(connect_fd, &set);

        if( select(-, NULL, &set, NULL, &tm) > )

        {

              getsockopt(connect_fd, SOL_SOCKET, SO_ERROR, (char*)&error, &len);

            if(error == ) ret = true;

            else ret = false;

        } else ret = false;

    }

    else ret = true;

    ul = ;

//设置为阻塞模式

    ioctlsocket(connect_fd,FIONBIO,&ul);

    if(!ret){

        closesocket(connect_fd);

//        fprintf(stderr,"Connect server fail in WIN\n");

    }

    return ret;

}