[libvirt] [PATCH 2/2] virDomainGetBlockJobInfo: Fix corner case when qemu reports no info

[Eric Blake]

On 09/13/2016 06:02 AM, Michal Privoznik wrote:

>> So, just to make it crystal clear, is this what you're saying?
>>
>> ready | initial C/R |fudged C/R
> 
> Oh, This should have been C/E instead of C/R. Current/End. 'e' and 'r'
> keys are just too close to each other :-)
> 
>> ------+-------------+----------
>>  < 0  |     0/0     |   0/0
>>  = 0  |	    0/0     |   0/1
>>  > 0  |	    0/0     |   1/1

Yes, I think that's the best. Then we have documented to apps higher in
the stack that if they see 0/0, it is because qemu is too old to give us
a definitive answer; in all other cases, we have fudged data so that
higher layers don't have to worry about 0/0.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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