Wenchao Xia | de08c60 | 2013-05-25 11:09:43 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Block layer snapshot related functions |
| 3 | * |
| 4 | * Copyright (c) 2003-2008 Fabrice Bellard |
| 5 | * |
| 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: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 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 |
| 22 | * THE SOFTWARE. |
| 23 | */ |
| 24 | |
| 25 | #ifndef SNAPSHOT_H |
| 26 | #define SNAPSHOT_H |
| 27 | |
| 28 | #include "qemu-common.h" |
Wenchao Xia | 2ea1dd7 | 2013-09-11 14:04:32 +0800 | [diff] [blame] | 29 | #include "qapi/error.h" |
Wenchao Xia | 8c116b0 | 2013-12-04 17:10:55 +0800 | [diff] [blame] | 30 | #include "qemu/option.h" |
| 31 | |
| 32 | |
| 33 | #define SNAPSHOT_OPT_BASE "snapshot." |
| 34 | #define SNAPSHOT_OPT_ID "snapshot.id" |
| 35 | #define SNAPSHOT_OPT_NAME "snapshot.name" |
| 36 | |
| 37 | extern QemuOptsList internal_snapshot_opts; |
Wenchao Xia | de08c60 | 2013-05-25 11:09:43 +0800 | [diff] [blame] | 38 | |
| 39 | typedef struct QEMUSnapshotInfo { |
| 40 | char id_str[128]; /* unique snapshot id */ |
| 41 | /* the following fields are informative. They are not needed for |
| 42 | the consistency of the snapshot */ |
| 43 | char name[256]; /* user chosen name */ |
| 44 | uint64_t vm_state_size; /* VM state info size */ |
| 45 | uint32_t date_sec; /* UTC date of the snapshot */ |
| 46 | uint32_t date_nsec; |
| 47 | uint64_t vm_clock_nsec; /* VM clock relative to boot */ |
| 48 | } QEMUSnapshotInfo; |
| 49 | |
| 50 | int bdrv_snapshot_find(BlockDriverState *bs, QEMUSnapshotInfo *sn_info, |
| 51 | const char *name); |
Wenchao Xia | 2ea1dd7 | 2013-09-11 14:04:32 +0800 | [diff] [blame] | 52 | bool bdrv_snapshot_find_by_id_and_name(BlockDriverState *bs, |
| 53 | const char *id, |
| 54 | const char *name, |
| 55 | QEMUSnapshotInfo *sn_info, |
| 56 | Error **errp); |
Wenchao Xia | de08c60 | 2013-05-25 11:09:43 +0800 | [diff] [blame] | 57 | int bdrv_can_snapshot(BlockDriverState *bs); |
| 58 | int bdrv_snapshot_create(BlockDriverState *bs, |
| 59 | QEMUSnapshotInfo *sn_info); |
| 60 | int bdrv_snapshot_goto(BlockDriverState *bs, |
| 61 | const char *snapshot_id); |
Wenchao Xia | a89d89d | 2013-09-11 14:04:33 +0800 | [diff] [blame] | 62 | int bdrv_snapshot_delete(BlockDriverState *bs, |
| 63 | const char *snapshot_id, |
| 64 | const char *name, |
| 65 | Error **errp); |
| 66 | void bdrv_snapshot_delete_by_id_or_name(BlockDriverState *bs, |
| 67 | const char *id_or_name, |
| 68 | Error **errp); |
Wenchao Xia | de08c60 | 2013-05-25 11:09:43 +0800 | [diff] [blame] | 69 | int bdrv_snapshot_list(BlockDriverState *bs, |
| 70 | QEMUSnapshotInfo **psn_info); |
| 71 | int bdrv_snapshot_load_tmp(BlockDriverState *bs, |
Wenchao Xia | 7b4c478 | 2013-12-04 17:10:54 +0800 | [diff] [blame] | 72 | const char *snapshot_id, |
| 73 | const char *name, |
| 74 | Error **errp); |
| 75 | int bdrv_snapshot_load_tmp_by_id_or_name(BlockDriverState *bs, |
| 76 | const char *id_or_name, |
| 77 | Error **errp); |
Wenchao Xia | de08c60 | 2013-05-25 11:09:43 +0800 | [diff] [blame] | 78 | #endif |