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Date: Thu, 25 Mar 2010 08:57:36 -0500
From: Anthony Liguori <anthony@codemonkey.ws>
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Subject: Re: [Qemu-devel] Re: [libvirt] Supporting hypervisor specific APIs
	in libvirt
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To: Avi Kivity <avi@redhat.com>
Cc: "libvir-list@redhat.com" <libvir-list@redhat.com>, Vincent Hanquez <tab@snarc.org>, qemu-devel@nongnu.org, Paul Brook <paul@codesourcery.com>, Luiz Capitulino <lcapitulino@redhat.com>

On 03/25/2010 08:48 AM, Avi Kivity wrote:
>>
>> But an awful lot of the providers for pegasus are written in C.
>
> But we're concerned with only one, the virt provider.  None of the 
> others will use libqemu?
>
>> The point is, C is a lowest common denominator and it's important to 
>> support in a proper way.
>
> Problem is, it means horrible support for everyone else.

Why?

We can provide a generic QMP dispatch interface that high level 
languages can use.  Then they can do fancy dispatch, treat QErrors as 
exceptions, etc.

We just ought to also provide some simple C wrappers for all of the 
functions.  Yes, the C interface is inferior to the generic interface 
but that's fine.

Regards,

Anthony Liguori