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libvirt/tools/virsh-util.h
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

108 lines
2.9 KiB
C

/*
* virsh-util.h: helpers for virsh
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "virsh.h"
#include <libxml/parser.h>
#include <libxml/xpath.h>
virDomainPtr
virshLookupDomainBy(vshControl *ctl,
const char *name,
unsigned int flags);
virDomainPtr
virshCommandOptDomainBy(vshControl *ctl,
const vshCmd *cmd,
const char **name,
unsigned int flags);
virDomainPtr
virshCommandOptDomain(vshControl *ctl,
const vshCmd *cmd,
const char **name);
void
virshDomainFree(virDomainPtr dom);
void
virshDomainCheckpointFree(virDomainCheckpointPtr chk);
void
virshDomainSnapshotFree(virDomainSnapshotPtr snap);
int
virshDomainState(vshControl *ctl,
virDomainPtr dom,
int *reason);
int
virshStreamSink(virStreamPtr st,
const char *bytes,
size_t nbytes,
void *opaque);
typedef struct _virshStreamCallbackData virshStreamCallbackData;
typedef virshStreamCallbackData *virshStreamCallbackDataPtr;
struct _virshStreamCallbackData {
vshControl *ctl;
int fd;
};
int
virshStreamSource(virStreamPtr st,
char *bytes,
size_t nbytes,
void *opaque);
int
virshStreamSourceSkip(virStreamPtr st,
long long offset,
void *opaque);
int
virshStreamSkip(virStreamPtr st,
long long offset,
void *opaque);
int
virshStreamInData(virStreamPtr st,
int *inData,
long long *offset,
void *opaque);
int
virshDomainGetXMLFromDom(vshControl *ctl,
virDomainPtr dom,
unsigned int flags,
xmlDocPtr *xml,
xmlXPathContextPtr *ctxt)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(4)
ATTRIBUTE_NONNULL(5) ATTRIBUTE_RETURN_CHECK;
int
virshDomainGetXML(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags,
xmlDocPtr *xml,
xmlXPathContextPtr *ctxt)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(4)
ATTRIBUTE_NONNULL(5) ATTRIBUTE_RETURN_CHECK;