Re: [libvirt] [Xen-devel] [PATCH 0/5] Testing libvirt XML -> libxl_domain_config conversion

["Daniel P. Berrange" <berrange@redhat.com>]

On Mon, Jun 02, 2014 at 01:41:58PM +0100, Ian Campbell wrote:
> >    I hacked around this, but it is a little dirty too. libvirt
> >    already links to libyajl for the QEMU driver, but we  don't
> >    really need the raw YAJL objects. It'd be nice to have a
> > 
> >       char * libxl_domain_config_as_json(libxl_domain_config *p)
> > 
> >    as a higher level wrapper around libxl_domain_config_gen_json
> >    avoiding the pain of dealing with YAJL's different APIs.
> > 
> >    Ian J mentioned to me that he thought there was already such a
> >    method, but AFAICT, the only such code is in the 'xl' command
> >    line tool itself (xl_cmdimpl.c - printf_info_one_json)
> 
> That was me not Ian J I think.

Opps, my bad, was talking to too many people to remember things clearly :-)
 
> The function you need is libxl_domain_config_to_json (which is
> autogenerated, so in _libxl_types.[hc]). I think the general
> libxl_*_to_json support has been there since Xen 4.2, but IIRC
> libxl_domain_config only got moved into the autogenerated/IDL layer in
> 4.3.

Ahhh, so I was looking in the wrong place - no wonder 'git grep' failed
to find it :-)

> For compatibility with 4.2 you could probably use libxl_*_to_json on the
> various members of libxl_domain_config individually, or just punt on the
> unit tests in that case of course...

Yeah, I think it is reasonable to just disable the test case if
this function is missing.  So I can avoid libxl_json.h entirely
in this case.

Regards,
Daniel
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