[Libvir] PATCH: 3/7 internal driver API

Daniel Veillard veillard at redhat.com
Wed Oct 31 14:12:52 UTC 2007

On Mon, Oct 29, 2007 at 03:57:29AM +0000, Daniel P. Berrange wrote:
> This patch defines the internal driver API for the storage API calls.
> It also provides the cache implementation for the virStoragePoolPtr
> and virStorageVolPtr objects. The virStorageVolPtr object is a little
> different in that it doesn't reference the virConnectPtr object
> directly. Instead it points to the virStoragePoolPtr object. This


> makes the reference counting 'interesting', because when we get a
> virStorageVolPtr object, we have increment the count on both the pool
> and the connection. This was starting to get complex, so to keep it
> sane I don't bother with referencing counting on the virStorageVolPtr
> object itself.

  So how do you get rid of it ? You assume they will always stay around ?
Also what's the story about locking in that patch, you're trying to allow
concurrent operations on multiple storage pools (which may be needed due
to storage and network latencies)

> + * Provides the connection pointer associated with a storage poolk.  The


  The patch code looks mostly common :-)


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Daniel Veillard      | virtualization library  http://libvirt.org/
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