On Tue, Oct 16, 2007 at 03:16:34PM +0100, Richard W.M. Jones wrote:
Daniel P. Berrange wrote:
>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
>formats
I'm not sure I understand. Do you mean the function would parse a block
device and return a structure?
Yes, that's what I was thinking, although I forgot this was in the Xen
driver, not QEMU, and so doesn't have any such struct defined at this time.
So perhaps its not worth the hassle - go with your original patch if you
like.
Dan.
--
|=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=|
|=- Perl modules:
http://search.cpan.org/~danberr/ -=|
|=- Projects:
http://freshmeat.net/~danielpb/ -=|
|=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|