public static extern int uv_tcp_bind(IntPtr handle, ref sockaddr_in6 sockaddr, uint flags);
public extern static int uv_ip6_addr(string ip, int port, out sockaddr_in6 address);
public static extern int uv_tcp_bind(IntPtr handle, ref sockaddr_in6 sockaddr, uint flags);
public extern static int uv_ip6_addr(string ip, int port, out sockaddr_in6 address);