Commit Graph

10 Commits

Author SHA1 Message Date
Eric Blake
689beaa47c backup: Implement virsh support for checkpoints
Introduce a bunch of new virsh commands for managing checkpoints in
isolation. More commands are needed for performing incremental
backups, but these commands were easy to implement by modeling heavily
after virsh-snapshot.c. There is no need for checkpoint-revert or
checkpoint-current since those snapshot APIs have no checkpoint
counterpart.  Similarly, it is not necessary to change which
checkpoint is current when redefining from XML, since until we
integrate checkpoints with snapshots, there is only a linear chain
(and you can deduce the current checkpoint by instead using
'checkpoint-list --leaves').  Other aspects of checkpoint-list are
also a bit simpler than the snapshot counterpart, in part because we
don't have to cater to back-compat to older API.

Upcoming patches will test these interfaces once the test driver
supports checkpoints.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2019-07-26 16:48:58 -05:00
Jonathon Jongsma
a325763ff1 tools: use #pragma once in headers
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2019-06-19 17:12:34 +02:00
Daniel P. Berrangé
568a417224 Enforce a standard header file guard symbol name
Require that all headers are guarded by a symbol named

  LIBVIRT_$FILENAME

where $FILENAME is the uppercased filename, with all characters
outside a-z changed into '_'.

Note we do not use a leading __ because that is technically a
namespace reserved for the toolchain.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-12-14 10:47:13 +00:00
Michal Privoznik
7823e2561b virsh: Implement sparse stream to vol-upload
Similarly to previous commit, implement sparse streams feature
for vol-upload. This is, however, slightly different approach,
because we must implement a function that will tell us whether
we are in a data section or in a hole. But there's no magic
hidden in here.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2017-05-18 07:42:13 +02:00
Michal Privoznik
f03b44b2df virsh: Implement sparse stream to vol-download
Add a new --sparse switch that does nothing more than
enables the sparse streams feature for this command. Among with
the switch new helper function is introduced: virshStreamSkip().
This is the callback that is called whenever daemon sends us a
hole. In the callback we reflect the hole in underlying file by
seeking as many bytes as told.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2017-05-18 07:42:13 +02:00
Peter Krempa
c8a637c7d0 virsh: add helpers for getting domain XML for XPath purposes
In virsh we quite often get the domain XML just to initialize the XPath
parser so that we can extract information.

Add helpers which will simplify this by wrapping the getting of the XML
and parsing it along with error reporting.

Additionally a second helper also gets the domain object from the
parameters and releases it so that functions which need the XML as only
source of data can be simplified further.
2017-04-12 14:12:56 +02:00
Peter Krempa
010c8f0f26 virsh: Add wrapper for virDomainSnapshotFree
Similarly to virshDomainFree add a wrapper for the snapshot object
freeing function.
2017-04-12 14:11:39 +02:00
Peter Krempa
3a344d55d9 virsh-util: Add wrapper for virDomainFree
virDomainFree has it's quirks (does not like NULL pointers, resets
libvirt errors). Replace it by a virsh helper which will allow us to
centrally fix issues with it.

The syntax-check rule will prohibit new uses of virDomainFree.
2017-04-12 14:08:37 +02:00
Peter Krempa
aff5aab751 virsh-util: Move domain lookup helpers into virsh-util
Move virshLookupDomainBy, virshCommandOptDomainBy and
virshCommandOptDomainBy to the helper file. Additionally turn the
virshCommandOptDomainBy macro into a function.
2017-04-12 13:23:10 +02:00
Peter Krempa
e8a61ae4bd virsh: Add new file for utility functions and move a few
Don't accumulate helpers in virsh.c
2017-04-12 13:23:10 +02:00