From: Leslie Viljoen <leslieviljoen@...>
Date: 2008-06-11T07:13:17+09:00
Subject: Non blocking UDP

Hello!

I need to make a UDP server that waits for clients to log on and then drives
communication from the server side. This means that if a client doesn't ack
subsequent comms from the server, the server needs to resend those
comms a few times before giving up.

I have gotten as far as a successful UDP server, but it blocks the thread
forever, and having a server constantly breaking out of
socket.recvfrom using Timeout
does not seem to work at all (port never seems open). I need a UDP wait
with a timeout.

I have looked at several UDP examples, and tried the sparse docs here:
http://ruby-doc.org/stdlib/libdoc/socket/rdoc/classes/Socket.html#M004528

- but no luck yet. I tried recvfrom_nonblock as a guess but it seems to
block anyway.

Any tips?

Les