[libvirt] Question about virConnectDomainXMLToNative

Cole Robinson crobinso at redhat.com
Mon Mar 21 13:37:01 UTC 2011


On 03/18/2011 07:36 AM, Daniel P. Berrange wrote:
> On Fri, Mar 18, 2011 at 09:42:12AM +0100, Michal Novotny wrote:
>> Hi,
>> I've been investigating the virConnectDomainXMLToNative() format
>> option and I found out the virConnectDomainXMLToNative() calls the
>> conn->driver->domainXMLToNative() function and passes the format to
>> the driver function where the check whether format is valid or not
>> is being performed. Unfortunately I was unable to get the list of
>> supported format strings (like "qemu-argv"/"xen-xm"/"xen-sexpr"
>> etc.) so I'd like to ask whether there is some API to get all the
>> formats supported by the driver or not.
>>
>> If not, wouldn't it be worth it to add some API like
>> virConnectGetDomainNativeFormats() or something to return the format
>> option for the connection?
>>
>> I guess many people would be having issues with that and although
>> it's documented in the virsh man pages what if somebody will be
>> using some other application than virsh or you add some formatting
>> option however you forget to add it to the man page?
>>
>> I think it's worth it to consider adding
>> conn->driver->domainNativeFormats() to the driver and placing it
>> nearby the conn->driver->domainXMLToNative() function in the driver
>> (like right above qemuDomainXMLToNative() etc.).
> 
> Yes, we could add an API for this purpose.

I think rather than an API we should just stuff the list somewhere in
capabilities XML.

- Cole




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