Re: [gentoo-dev] rc-scripts/init: new service dependency

[Wout Mertens]

On Mon, 5 May 2003, Martin Schlemmer wrote:

> On Mon, 2003-05-05 at 22:23, Wolfram Schlich wrote:
>
> > What about a new dependency like "triggeredby"?
> > Another name could be "stickto"...
> > This would/should/could both affect "start" and "stop" operations. E.g.:
> >
> > 	/etc/init.d/ddclient:
> > 		-> triggeredby net.ppp0
> > 		-> after net.ppp0
> >
> > This would cause ddclient to be started when net.ppp0 is started, but
> > due to the "after" dep, it would be started *after* net.ppp0.
> > Kinda reverse/twisted need dependency... or something.
> >
> > This "triggeredby" could be applied to e.g. squid, iptables, postfix... all the
> > stuff you *might* choose to need when connecting to the internet but
> > don't want to start before you *really* connect.
> >
>
> Might be a good feature to support.  I just do not like the name =)

How about subscribe? And you can ask to be called before and/or after the
script you subscribe to:

subscribe after net.ppp0

event() {
	case $2 in
		start|restart)
			start
			;;
		stop)
			stop
			;;
	esac
}

This would make runscript call ddclients event() after net.ppp0 was run,
with $1 set to the script, $2 set to the action and $3 set to before or
after.

Of course, this still doesn't fix having multiple ways of bringing up your
interface, like I proposed for gentoo-net (need to work on that :-/). My
proposal also took care of calling ddclient after the interface was up...

Wout.

--
gentoo-dev@g.o mailing list