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A nice benefit of deleting all snapshots at undefine time is that you don't have to do any reparenting or subtree identification - since everything goes, this is an O(n) process, whereas using multiple virDomainSnapshotDelete calls would be O(n^2) or worse. But it is only doable for snapshot metadata, where we are in control of the data being deleted; for the actual snapshots, there's too much likelihood of something going wrong, and requiring even more API calls to figure out what failed in the meantime, so callers are better off deleting the snapshot data themselves one snapshot at a time where they can deal with failures as they happen. * src/qemu/qemu_driver.c (qemuDomainUndefineFlags): Honor new flags.
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>