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There was an inherent race between virDomainSnapshotNum() and virDomainSnapshotListNames(), where an additional snapshot could be created in the meantime, or where a snapshot could be deleted before converting the name back to a virDomainSnapshotPtr. It was also an awkward name: the function operates on domains, not domain snapshots. virDomainSnapshotListChildrenNames() suffered from the same inherent race, although its naming was nicer. This patch makes things nicer by grabbing a snapshot list atomically, in the format most useful to the user. * include/libvirt/libvirt.h.in (virDomainListAllSnapshots) (virDomainSnapshotListAllChildren): New declarations. * src/libvirt.c (virDomainSnapshotListNames) (virDomainSnapshotListChildrenNames): Add cross-references. (virDomainListAllSnapshots, virDomainSnapshotListAllChildren): New functions. * src/libvirt_public.syms (LIBVIRT_0.9.13): Export them. * src/driver.h (virDrvDomainListAllSnapshots) (virDrvDomainSnapshotListAllChildren): New callbacks. * python/generator.py (skip_function): Prepare for later hand-written versions.
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>