From: Randy General <randygeneral@...>
Date: 2009-07-09T02:12:45+09:00
Subject: Re: How to accept a varying amount of UDP packets using recvfrom

Bill Kelly wrote:
> 
> Generally, use select to specifiy the desired timeout.
> 
> However, it's a little more complicated with ruby and UDP, such
> that one may end up needing to wrap the recvfrom in a
> timeout { } block anyway.  (On some operating systems, if the
> UDP packet has a checksum error, select can return ready,
> but recvfrom will block.  (And in many (all?) versions of ruby,
> setting fcntl O_NONBLOCK does not help due to ruby's
> internals.))
> 
> This rubyforge project has code for receiving one-or-more UDP
> packets from a Quake2 server:
> 
> http://rubyforge.org/scm/?group_id=288
> 
> The relevant source file is: dorkbuster/dbcore/q2rcon.rb
> 
> Here's the innermost receive method: http://pastebin.com/f716b381d
> 
> 
> Hope this helps,
> 
> Bill

Thanks for your replies!

The code in that pastie is a bit beyond my current skill level (just 
began programming a few days ago), but I'll see if I can make some sense 
of it and incorporate it into my own app. Thanks for your help!
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