[Libvir] [PATCH] Refactor xend_internal.c block device detection

Daniel P. Berrange berrange at redhat.com
Tue Oct 16 14:11:02 UTC 2007

On Tue, Oct 16, 2007 at 02:13:04PM +0100, Richard W.M. Jones wrote:
> This patch is a little bit esoteric, but I need it for something I'm 
> working on at the moment.
> At the moment the code in xend_internal.c: xend_parse_sexp_desc parses 
> the domain sexpr directly into XML.  This makes it rather hard to just 
> get a list of block devices without repeating the same code.  So here 
> I've factored out the common code for parsing block devices into a 
> separate function and callback.

I agree that its good to separate this code out, however, I'd split it
slightly differently. Instead of a function to parse all block devices
and a callback to receive each one, I'd have the new function just be 
responsible for parsing a single block device. Keep iteration over block
devices in the caller & avoid the callback. This is more in keeping with
the style of the other functions for parsing XML & related domain info

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