From: Rusty Russell <rusty@rustcorp.com.au>
To: Keir Fraser <Keir.Fraser@cl.cam.ac.uk>
Cc: Andrew Warfield <andrew.warfield@cl.cam.ac.uk>,
xen-devel List <xen-devel@lists.xensource.com>,
Steven Hand <steven.hand@cl.cam.ac.uk>,
Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
Subject: Re: /proc/xen/xenbus supports watch?
Date: Mon, 26 Sep 2005 08:52:07 +1000 [thread overview]
Message-ID: <1127688727.9596.3.camel@localhost.localdomain> (raw)
In-Reply-To: <4ba3195147df19b9de13bec776083940@cl.cam.ac.uk>
On Sun, 2005-09-25 at 12:09 +0100, Keir Fraser wrote:
> How will you handle 'xenstored restart'? You can't really guarantee
> that to always happen at opportune moments with no transactions in
> flight.
Transaction IDs: when you create a transaction instead of returning "OK"
it returns an ID (this also helps if later we want multiple transactions
at a time on a single connection). If you were in a transaction you
EBADF, you simply ask for it back before continuing: this can be done by
libxenstore.
It's simple enough to implement, because xenstored keeps each
transaction in a separate file: it just has to pick up those files again
on restart.
I'll start sending patches...
Cheers,
Rusty.
--
A bad analogy is like a leaky screwdriver -- Richard Braakman
next prev parent reply other threads:[~2005-09-25 22:52 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-08 8:02 /proc/xen/xenbus supports watch? NAHieu
2005-09-08 10:38 ` Christian Limpach
2005-09-09 0:43 ` Rusty Russell
2005-09-13 9:42 ` Christian Limpach
2005-09-14 0:21 ` Rusty Russell
2005-09-14 8:24 ` Christian Limpach
2005-09-14 9:18 ` Rusty Russell
2005-09-14 12:55 ` Christian Limpach
2005-09-15 1:39 ` Rusty Russell
2005-09-15 10:53 ` Keir Fraser
2005-09-17 8:26 ` Rusty Russell
2005-09-17 8:33 ` Keir Fraser
2005-09-19 0:11 ` Rusty Russell
2005-09-19 8:54 ` Keir Fraser
2005-09-20 11:01 ` Rusty Russell
2005-09-21 9:35 ` Keir Fraser
2005-09-22 2:07 ` Rusty Russell
2005-09-22 9:36 ` Keir Fraser
2005-09-22 22:54 ` Rusty Russell
2005-09-23 9:17 ` Keir Fraser
2005-09-25 3:29 ` Rusty Russell
2005-09-25 11:02 ` Keir Fraser
2005-09-25 11:33 ` Keir Fraser
2005-09-25 18:55 ` Christian Limpach
2005-09-26 6:36 ` Rusty Russell
2005-09-26 7:33 ` Keir Fraser
2005-09-26 18:51 ` Christian Limpach
2005-09-26 19:30 ` Keir Fraser
2005-09-27 6:48 ` Rusty Russell
2005-09-27 7:15 ` Rusty Russell
2005-09-27 23:31 ` David Hopwood
2005-09-25 23:06 ` Rusty Russell
2005-09-21 9:39 ` Keir Fraser
2005-09-21 11:42 ` harry
2005-09-22 2:22 ` Rusty Russell
2005-09-22 9:35 ` Keir Fraser
2005-09-22 23:51 ` Rusty Russell
2005-09-23 1:01 ` Andrew Warfield
2005-09-25 0:57 ` Rusty Russell
2005-09-25 11:09 ` Keir Fraser
2005-09-25 22:52 ` Rusty Russell [this message]
2005-09-23 9:24 ` Keir Fraser
2005-09-25 1:09 ` Rusty Russell
2005-09-17 17:40 ` Christian Limpach
2005-09-19 0:19 ` Rusty Russell
2005-09-15 11:02 ` Christian Limpach
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