[avahi] Per-interface fds

[Lennart Poettering]

On Mon, 27.08.07 09:17, Zachary Loafman (zml+avahi at zml.net) wrote:

> However, after digging into it, and glancing at mDNSResponder for
> curiousity, I think I like your way better. Looks like mDNSResponder
> uses IP_MULTICAST_IF and per-interface fds, but doesn't solve the bind
> issue (uses INADDR_ANY). That seems like a poor idea.
> 
> I'll keep digging on a better way for the BSDs. I submitted the simple
> patch on the bug, its only real flaw is performance (2 syscalls per
> send), and a lack of thread atomicity (two threads trying to send out
> the same fd may stomp on each other). I'm more worried about the
> latter, but it doesn't look like a big deal right now.

For Avahi perfomance difference between one or two syscalls doesn't
really matter I would say. It's not that we are hacking a low-latency
rt audio server here...

Avahi doesn't use threads, so the thread atomicity issue doesn't count
;-)

Lennart

-- 
Lennart Poettering                        Red Hat, Inc.
lennart [at] poettering [dot] net         ICQ# 11060553
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