C Socket Programming

currently writing a client and a server program who exchange data via UDPv6/IPv6 and using ARQ with sequencenumbers and ACKs to ensure the data was send correctly
to do this you have to change the socket to O_NONBLOCK and then theres comes this tricky select()/pselect() function and I really cant get it to work
does some of you got an example for this problem?

C# is shit. Microsoft is in the process of getting rid of .NET.

Just you wait, within this year, there will be a big shakeup over the failure of Windows 8. Ballmer the Jew will finally be ousted. They'll cut corners in an attempt to refocus their business on a new strategy.