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xen-devel
Re: [Xen-devel] [PATCH] add domain creation/shutdown script execution su
> > I'm really glad you've taken the initiative on this, it has the potential
> > to give us some very powerful functionality quite cheaply.
>
> I will endeavor to find some free time over the weekend to have a
> play with the xenstored code, and see if I can watch events from it.
> No promises at all, but if I get anywhere I'll post an update.
>
> Right now I can use "xenstore-ls" to get a snapshot, and I guess
> I could do that every five seconds or so to be able to detect newly
> created domains, and existing ones which have been shutdown.
> That's not ideal, but for a first pass should let me get something
> working.
Should be interesting for prototyping, yes!
> Downside is I'd probably have to write the daemon in python to
> get it into the core, right?
Not necessarily; there is a C interface to Xenstore and some of the other code
(e.g. I think the console daemon) is written in C. Xend is mostly Python but
if you can cleanly code as a separate daemon then Python isn't strictly
necessary.
Cheers,
Mark
> > There's some information on it in the Wiki. Essentially it gives you a
> > hierarchical namespace describing the state of the management tools and
> > the domains running. This namespace is populated by (largely)
> > human-readable name=value pairs.
>
> Great.
>
> > I'll continue thinking about how best to accomplish it in the meantime...
> >
> :)
> >
> > It'll be interesting to see where we can go with this...
>
> Agreed.
>
> Steve
--
Dave: Just a question. What use is a unicyle with no seat? And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!
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