[libvirt] [Qemu-devel] Re: Supporting hypervisor specific APIs in libvirt

[Avi Kivity]

On 03/26/2010 10:37 AM, Markus Armbruster wrote:
>
>> The importances of libqemu is:
>>
>> 1) Providing a common QMP transport implementation that is extensible
>> by third parties
>> 2) Providing a set of common transports that support automatic
>> discovery of command line launched guests
>> 3) Providing a generic QMP dispatch function
>>      
> Adding to this C wrappers for QMP commands threatens to make QMP command
> arguments part of the library ABI.  Compatible QMP evolution (like
> adding an optional argument) turns into a libqmp soname bump.
> Counter-productive.  How do you plan to avoid that?
>    

You could make the API use QObjects; then you're completely isolated 
from high level protocol changes.  Of course, this is less useful than 
the full API.

-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.