This tutorial is about how to write a UDP Server in C that is based on asynchronous I/O. I would be introducing libuv briefly, explaining those concepts that are mainly required to write the UDP server. The detailed introduction and API documentation is available on the internet.
Event Driven Programming: In a event driven programming, a user register a set of events(in which he is interested in ) and callbacks to those events. In our case, libuv is responsible for gathering events from the operating system and monitoring them. Some of the examples of event loop are file is ready for writing, timer timed out, socket has data ready to be read, etc. When the registered events occur the callbacks invoked by the user are invoked.
Libuv uses asynchronous, non-blocking style to deal with events and callback. Not getting into the details or advantages of it, you can find plenty of articles and blog on it.
Networking:
Hope you find this useful.
