From: Sam Roberts <sroberts@...>
Date: 2006-05-16T13:22:55+09:00
Subject: Re: MulticastSocket in Ruby

Quoting dirk.breuer@gmail.com, on Sat, May 13, 2006 at 06:49:49PM +0900:
> I need some halp with Multicast Sockets. Is it possible to establish a 
> multicst socket in Ruby? I believe it ist, but have no idea how it could 
> work. I asked Google already for help, but with no success. So I ask 
> here. I already tried to solve this with using UDPSocket, but that 
> failed, too.

Use the low level apis of class Socket. They behave almost the same as
the BSD socket apis.

> Is there any class, package or extension for this task or could you give 
> me a hint for doing this with the existing sockets?

If you want an example, multicast DNS uses multicast UDP, both send and
receive, look at http://dnssd.rubyforge.org, check out the source in
net-mdns.

Cheers,
Sam