#include "Socket.h" /* class UDPSocket constructor() close() setblocking(nonblocking: boolean) setbroadcast(isbroadcast: boolean) Broadcast default to false. listen([ip: string], port: int) Address default to 0.0.0.0. connect(ip: string, port: int) send(data: string) recv([maxsize: int]): string. Default to 4KB. sendto([ip: string], port: int, data: string) If ip is empty, default to 255.255.255.255 (broadcast) recvfrom(): data: string, ip: string, port: int */