mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-09-09 01:04:59 +00:00
84783d9d1c
Create a new libvirt-domain-snapshot.h file to hold the public API definitions for the virDomainSnapshot type. This header file is not self-contained, so applications will not directly include it. They will continue to #include <libvirt/libvirt.h>
213 lines
10 KiB
C
213 lines
10 KiB
C
/*
|
|
* libvirt-domain-snapshot.h
|
|
* Summary: APIs for management of domain snapshots
|
|
* Description: Provides APIs for the management of domain snapshots
|
|
* Author: Daniel Veillard <veillard@redhat.com>
|
|
*
|
|
* Copyright (C) 2006-2014 Red Hat, Inc.
|
|
*
|
|
* 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/>.
|
|
*/
|
|
|
|
#ifndef __VIR_LIBVIRT_DOMAIN_SNAPSHOT_H__
|
|
# define __VIR_LIBVIRT_DOMAIN_SNAPSHOT_H__
|
|
|
|
# ifndef __VIR_LIBVIRT_H_INCLUDES__
|
|
# error "Don't include this file directly, only use libvirt/libvirt.h"
|
|
# endif
|
|
|
|
/**
|
|
* virDomainSnapshot:
|
|
*
|
|
* a virDomainSnapshot is a private structure representing a snapshot of
|
|
* a domain.
|
|
*/
|
|
typedef struct _virDomainSnapshot virDomainSnapshot;
|
|
|
|
/**
|
|
* virDomainSnapshotPtr:
|
|
*
|
|
* a virDomainSnapshotPtr is pointer to a virDomainSnapshot private structure,
|
|
* and is the type used to reference a domain snapshot in the API.
|
|
*/
|
|
typedef virDomainSnapshot *virDomainSnapshotPtr;
|
|
|
|
const char *virDomainSnapshotGetName(virDomainSnapshotPtr snapshot);
|
|
virDomainPtr virDomainSnapshotGetDomain(virDomainSnapshotPtr snapshot);
|
|
virConnectPtr virDomainSnapshotGetConnect(virDomainSnapshotPtr snapshot);
|
|
|
|
typedef enum {
|
|
VIR_DOMAIN_SNAPSHOT_CREATE_REDEFINE = (1 << 0), /* Restore or alter
|
|
metadata */
|
|
VIR_DOMAIN_SNAPSHOT_CREATE_CURRENT = (1 << 1), /* With redefine, make
|
|
snapshot current */
|
|
VIR_DOMAIN_SNAPSHOT_CREATE_NO_METADATA = (1 << 2), /* Make snapshot without
|
|
remembering it */
|
|
VIR_DOMAIN_SNAPSHOT_CREATE_HALT = (1 << 3), /* Stop running guest
|
|
after snapshot */
|
|
VIR_DOMAIN_SNAPSHOT_CREATE_DISK_ONLY = (1 << 4), /* disk snapshot, not
|
|
system checkpoint */
|
|
VIR_DOMAIN_SNAPSHOT_CREATE_REUSE_EXT = (1 << 5), /* reuse any existing
|
|
external files */
|
|
VIR_DOMAIN_SNAPSHOT_CREATE_QUIESCE = (1 << 6), /* use guest agent to
|
|
quiesce all mounted
|
|
file systems within
|
|
the domain */
|
|
VIR_DOMAIN_SNAPSHOT_CREATE_ATOMIC = (1 << 7), /* atomically avoid
|
|
partial changes */
|
|
VIR_DOMAIN_SNAPSHOT_CREATE_LIVE = (1 << 8), /* create the snapshot
|
|
while the guest is
|
|
running */
|
|
} virDomainSnapshotCreateFlags;
|
|
|
|
/* Take a snapshot of the current VM state */
|
|
virDomainSnapshotPtr virDomainSnapshotCreateXML(virDomainPtr domain,
|
|
const char *xmlDesc,
|
|
unsigned int flags);
|
|
|
|
/* Dump the XML of a snapshot */
|
|
char *virDomainSnapshotGetXMLDesc(virDomainSnapshotPtr snapshot,
|
|
unsigned int flags);
|
|
|
|
/**
|
|
* virDomainSnapshotListFlags:
|
|
*
|
|
* Flags valid for virDomainSnapshotNum(),
|
|
* virDomainSnapshotListNames(), virDomainSnapshotNumChildren(), and
|
|
* virDomainSnapshotListChildrenNames(), virDomainListAllSnapshots(),
|
|
* and virDomainSnapshotListAllChildren(). Note that the interpretation
|
|
* of flag (1<<0) depends on which function it is passed to; but serves
|
|
* to toggle the per-call default of whether the listing is shallow or
|
|
* recursive. Remaining bits come in groups; if all bits from a group are
|
|
* 0, then that group is not used to filter results. */
|
|
typedef enum {
|
|
VIR_DOMAIN_SNAPSHOT_LIST_ROOTS = (1 << 0), /* Filter by snapshots
|
|
with no parents, when
|
|
listing a domain */
|
|
VIR_DOMAIN_SNAPSHOT_LIST_DESCENDANTS = (1 << 0), /* List all descendants,
|
|
not just children, when
|
|
listing a snapshot */
|
|
|
|
/* For historical reasons, groups do not use contiguous bits. */
|
|
|
|
VIR_DOMAIN_SNAPSHOT_LIST_LEAVES = (1 << 2), /* Filter by snapshots
|
|
with no children */
|
|
VIR_DOMAIN_SNAPSHOT_LIST_NO_LEAVES = (1 << 3), /* Filter by snapshots
|
|
that have children */
|
|
|
|
VIR_DOMAIN_SNAPSHOT_LIST_METADATA = (1 << 1), /* Filter by snapshots
|
|
which have metadata */
|
|
VIR_DOMAIN_SNAPSHOT_LIST_NO_METADATA = (1 << 4), /* Filter by snapshots
|
|
with no metadata */
|
|
|
|
VIR_DOMAIN_SNAPSHOT_LIST_INACTIVE = (1 << 5), /* Filter by snapshots
|
|
taken while guest was
|
|
shut off */
|
|
VIR_DOMAIN_SNAPSHOT_LIST_ACTIVE = (1 << 6), /* Filter by snapshots
|
|
taken while guest was
|
|
active, and with
|
|
memory state */
|
|
VIR_DOMAIN_SNAPSHOT_LIST_DISK_ONLY = (1 << 7), /* Filter by snapshots
|
|
taken while guest was
|
|
active, but without
|
|
memory state */
|
|
|
|
VIR_DOMAIN_SNAPSHOT_LIST_INTERNAL = (1 << 8), /* Filter by snapshots
|
|
stored internal to
|
|
disk images */
|
|
VIR_DOMAIN_SNAPSHOT_LIST_EXTERNAL = (1 << 9), /* Filter by snapshots
|
|
that use files external
|
|
to disk images */
|
|
} virDomainSnapshotListFlags;
|
|
|
|
/* Return the number of snapshots for this domain */
|
|
int virDomainSnapshotNum(virDomainPtr domain, unsigned int flags);
|
|
|
|
/* Get the names of all snapshots for this domain */
|
|
int virDomainSnapshotListNames(virDomainPtr domain, char **names, int nameslen,
|
|
unsigned int flags);
|
|
|
|
/* Get all snapshot objects for this domain */
|
|
int virDomainListAllSnapshots(virDomainPtr domain,
|
|
virDomainSnapshotPtr **snaps,
|
|
unsigned int flags);
|
|
|
|
/* Return the number of child snapshots for this snapshot */
|
|
int virDomainSnapshotNumChildren(virDomainSnapshotPtr snapshot,
|
|
unsigned int flags);
|
|
|
|
/* Get the names of all child snapshots for this snapshot */
|
|
int virDomainSnapshotListChildrenNames(virDomainSnapshotPtr snapshot,
|
|
char **names, int nameslen,
|
|
unsigned int flags);
|
|
|
|
/* Get all snapshot object children for this snapshot */
|
|
int virDomainSnapshotListAllChildren(virDomainSnapshotPtr snapshot,
|
|
virDomainSnapshotPtr **snaps,
|
|
unsigned int flags);
|
|
|
|
/* Get a handle to a named snapshot */
|
|
virDomainSnapshotPtr virDomainSnapshotLookupByName(virDomainPtr domain,
|
|
const char *name,
|
|
unsigned int flags);
|
|
|
|
/* Check whether a domain has a snapshot which is currently used */
|
|
int virDomainHasCurrentSnapshot(virDomainPtr domain, unsigned int flags);
|
|
|
|
/* Get a handle to the current snapshot */
|
|
virDomainSnapshotPtr virDomainSnapshotCurrent(virDomainPtr domain,
|
|
unsigned int flags);
|
|
|
|
/* Get a handle to the parent snapshot, if one exists */
|
|
virDomainSnapshotPtr virDomainSnapshotGetParent(virDomainSnapshotPtr snapshot,
|
|
unsigned int flags);
|
|
|
|
/* Determine if a snapshot is the current snapshot of its domain. */
|
|
int virDomainSnapshotIsCurrent(virDomainSnapshotPtr snapshot,
|
|
unsigned int flags);
|
|
|
|
/* Determine if a snapshot has associated libvirt metadata that would
|
|
* prevent the deletion of its domain. */
|
|
int virDomainSnapshotHasMetadata(virDomainSnapshotPtr snapshot,
|
|
unsigned int flags);
|
|
|
|
typedef enum {
|
|
VIR_DOMAIN_SNAPSHOT_REVERT_RUNNING = 1 << 0, /* Run after revert */
|
|
VIR_DOMAIN_SNAPSHOT_REVERT_PAUSED = 1 << 1, /* Pause after revert */
|
|
VIR_DOMAIN_SNAPSHOT_REVERT_FORCE = 1 << 2, /* Allow risky reverts */
|
|
} virDomainSnapshotRevertFlags;
|
|
|
|
/* Revert the domain to a point-in-time snapshot. The
|
|
* state of the guest after this call will be the state
|
|
* of the guest when the snapshot in question was taken
|
|
*/
|
|
int virDomainRevertToSnapshot(virDomainSnapshotPtr snapshot,
|
|
unsigned int flags);
|
|
|
|
/* Delete a snapshot */
|
|
typedef enum {
|
|
VIR_DOMAIN_SNAPSHOT_DELETE_CHILDREN = (1 << 0), /* Also delete children */
|
|
VIR_DOMAIN_SNAPSHOT_DELETE_METADATA_ONLY = (1 << 1), /* Delete just metadata */
|
|
VIR_DOMAIN_SNAPSHOT_DELETE_CHILDREN_ONLY = (1 << 2), /* Delete just children */
|
|
} virDomainSnapshotDeleteFlags;
|
|
|
|
int virDomainSnapshotDelete(virDomainSnapshotPtr snapshot,
|
|
unsigned int flags);
|
|
|
|
int virDomainSnapshotRef(virDomainSnapshotPtr snapshot);
|
|
int virDomainSnapshotFree(virDomainSnapshotPtr snapshot);
|
|
|
|
#endif /* __VIR_LIBVIRT_DOMAIN_SNAPSHOT_H__ */
|