void C_Server::Instance( int nPort, int nMaxUsers )
{
    WSADATA pWSAData;
    if ( WSAStartup( MAKEWORD( 2, 2 ), &pWSAData ) != NO_ERROR )
    {
        std::cout << "[ - ] WSA Startup failed. Error: " << WSAGetLastError( ) << std::endl;
        return;
    }

    m_Socket = socket( AF_INET, SOCK_STREAM, IPPROTO_TCP );
    if ( m_Socket == INVALID_SOCKET )
    {
        std::cout << "[ - ] Socket creation error. Error: " << WSAGetLastError( ) << std::endl;
        return;
    }

    m_SocketAddress.sin_family = AF_INET;
    m_SocketAddress.sin_port = htons( nPort );
    m_SocketAddress.sin_addr.S_un.S_addr = INADDR_ANY;

    int32_t iBindResult = bind( m_Socket, ( sockaddr* ) ( &m_SocketAddress ), sizeof( SOCKADDR_IN ) );
    if ( iBindResult == SOCKET_ERROR )
        return;

    int32_t iListenResult = listen( m_Socket, nMaxUsers );
    if ( iListenResult == SOCKET_ERROR )
        return;

    // print message
    printf( "[ $ ] Server have been start up\n" );

    // handle conns
    while ( true ) { HandleConnections( ); };
}