Re: [libvirt] [PATCH 04/21] backup: Introduce virDomainBackup APIs

From: Eric Blake <eblake(a)redhat.com&gt; Introduce a few new public APIs related to incremental backups. This builds on the previous notion of a checkpoint (without an existing checkpoint, the new API is a full backup, differing from virDomainBlockCopy in the point of time chosen and in operation on multiple disks at once); and also allows creation of a new checkpoint at the same time as starting the backup (after all, an incremental backup is only useful if it covers the state since the previous backup). A backup job also affects filtering a listing of domains, as well as adding event reporting for signaling when a push model backup completes (where the hypervisor creates the backup); note that the pull model does not have an event (starting the backup lets a third party access the data, and only the third party knows when it is finished). The full list of new APIs: virDomainBackupBegin; virDomainBackupGetXMLDesc; Signed-off-by: Eric Blake <eblake(a)redhat.com&gt; Signed-off-by: Peter Krempa <pkrempa(a)redhat.com&gt; --- include/libvirt/libvirt-domain.h | 14 +++- src/driver-hypervisor.h | 12 +++ src/libvirt-domain-checkpoint.c | 7 +- src/libvirt-domain.c | 138 +++++++++++++++++++++++++++++++ src/libvirt_public.syms | 6 ++ 5 files changed, 173 insertions(+), 4 deletions(-)