[Libvirt-cim] [PATCH 6 of 6] Add another relationship to ElementCapabilities, the ResourcePool-AllocationCapabilities connection. Only supports the pool_to_alloc direction, because it is the only one that's terribly interesting, but the other direction will need to be added at some point
Jay Gagnon
grendel at linux.vnet.ibm.com
Fri Nov 9 20:32:43 UTC 2007
Dan Smith wrote:
> KR> Just a nit-picky thing here... why not call the AllocCapabilities
> KR> function that setups the instance? I think using the same
> KR> InstanceID for the AllocCapa as the pool might not always return
> KR> the correct instance because AllocCapa uses <pool type>/0 as the
> KR> InstanceID. But something like the NetworkingPool returns
> KR> "NetworkPool/xenbr0". So you'll be creating an instance with
> KR> "NetworkPool/xenbr0" as the InstanceID, which would conflict with
> KR> what EnumInstances from AllocCapa would return.
>
> I think AllocationCapabilities needs to change here. It think using
> the InstanceID from the pool makes the most sense. I'm not sure what
> the existing AllocationCapabilities stuff intended, but I'm assuming
> it will need to change to match this new stuff. Perhaps it was a
> hold-over from the days of one-pool-per-resource-type?
>
> Good catch, by the way :)
>
>
>
Just to be clear, copying InstanceID from the instance of ResourcePool
to the instance of AllocationCapabilities is okay, but I need to change
the AllocationCapabilities provider? That doesn't much surprise me; the
AllocationCapabilities provider itself only exists so I could register
it as a class; I'm honestly not even sure what it's supposed to do on
its own
. Reading through the entire Allocation Capabilities Profile (DSP1043)
provides no insight into what get/enumerateInstance(s) would do.
Reasonable detail is given about how it should be connected to things
via associations, but there isn't much concept of a standalone instance.
--
-Jay
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