internal static extern int uv_udp_send_win(IntPtr req, IntPtr handle, WindowsBufferStruct[] bufs, int bufcnt, sockaddr_in addr, callback callback);
internal static extern int uv_udp_send_unix(IntPtr req, IntPtr handle, UnixBufferStruct[] bufs, int bufcnt, sockaddr_in addr, callback callback);
internal static extern int uv_udp_bind(IntPtr handle, sockaddr_in sockaddr, short flags);
internal extern static int uv_ip4_addr(string ip, int port, out sockaddr_in address);
internal static extern int uv_tcp_bind(IntPtr handle, sockaddr_in sockaddr);
internal static extern int uv_tcp_connect(IntPtr req, IntPtr handle, sockaddr_in addr, callback callback);