Overview
Classes: MultiSocketPoller, S =, SingleSocketPoller, UDPClient, UDPServerParams, UDPSocketReader
Classes
class MultiSocketPoller
MultiSocketPoller, as its name indicates, repeatedly polls a set of
sockets for readability and/or error. 
class S =
UDP handler handles the data that arrives to the UDP server.
class SingleSocketPoller
SingleSocketPoller, as its name indicates, repeatedly polls a single
socket for readability; if the socket is readable, the reading action
is delegated to the reader.
class UDPClient
UDP client can either send, or send/receive UDP packets.
class UDPServerParams
A class encapsulating UDP server parameters.
class UDPSocketReader
UDPSocketReader is responsible for UDP socket I/O operations.