2 * Block layer snapshot related functions
4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
28 #include "qemu-common.h"
29 #include "qapi/error.h"
31 typedef struct QEMUSnapshotInfo
{
32 char id_str
[128]; /* unique snapshot id */
33 /* the following fields are informative. They are not needed for
34 the consistency of the snapshot */
35 char name
[256]; /* user chosen name */
36 uint64_t vm_state_size
; /* VM state info size */
37 uint32_t date_sec
; /* UTC date of the snapshot */
39 uint64_t vm_clock_nsec
; /* VM clock relative to boot */
42 int bdrv_snapshot_find(BlockDriverState
*bs
, QEMUSnapshotInfo
*sn_info
,
44 bool bdrv_snapshot_find_by_id_and_name(BlockDriverState
*bs
,
47 QEMUSnapshotInfo
*sn_info
,
49 int bdrv_can_snapshot(BlockDriverState
*bs
);
50 int bdrv_snapshot_create(BlockDriverState
*bs
,
51 QEMUSnapshotInfo
*sn_info
);
52 int bdrv_snapshot_goto(BlockDriverState
*bs
,
53 const char *snapshot_id
);
54 int bdrv_snapshot_delete(BlockDriverState
*bs
,
55 const char *snapshot_id
,
58 void bdrv_snapshot_delete_by_id_or_name(BlockDriverState
*bs
,
59 const char *id_or_name
,
61 int bdrv_snapshot_list(BlockDriverState
*bs
,
62 QEMUSnapshotInfo
**psn_info
);
63 int bdrv_snapshot_load_tmp(BlockDriverState
*bs
,
64 const char *snapshot_name
);