root / include / block / snapshot.h @ 6a1751b7
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1 | de08c606 | Wenchao Xia | /*
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2 | de08c606 | Wenchao Xia | * Block layer snapshot related functions
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3 | de08c606 | Wenchao Xia | *
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4 | de08c606 | Wenchao Xia | * Copyright (c) 2003-2008 Fabrice Bellard
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5 | de08c606 | Wenchao Xia | *
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6 | de08c606 | Wenchao Xia | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | de08c606 | Wenchao Xia | * of this software and associated documentation files (the "Software"), to deal
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8 | de08c606 | Wenchao Xia | * in the Software without restriction, including without limitation the rights
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9 | de08c606 | Wenchao Xia | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | de08c606 | Wenchao Xia | * copies of the Software, and to permit persons to whom the Software is
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11 | de08c606 | Wenchao Xia | * furnished to do so, subject to the following conditions:
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12 | de08c606 | Wenchao Xia | *
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13 | de08c606 | Wenchao Xia | * The above copyright notice and this permission notice shall be included in
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14 | de08c606 | Wenchao Xia | * all copies or substantial portions of the Software.
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15 | de08c606 | Wenchao Xia | *
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16 | de08c606 | Wenchao Xia | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | de08c606 | Wenchao Xia | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | de08c606 | Wenchao Xia | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | de08c606 | Wenchao Xia | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | de08c606 | Wenchao Xia | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | de08c606 | Wenchao Xia | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | de08c606 | Wenchao Xia | * THE SOFTWARE.
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23 | de08c606 | Wenchao Xia | */
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24 | de08c606 | Wenchao Xia | |
25 | de08c606 | Wenchao Xia | #ifndef SNAPSHOT_H
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26 | de08c606 | Wenchao Xia | #define SNAPSHOT_H
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27 | de08c606 | Wenchao Xia | |
28 | de08c606 | Wenchao Xia | #include "qemu-common.h" |
29 | de08c606 | Wenchao Xia | |
30 | de08c606 | Wenchao Xia | typedef struct QEMUSnapshotInfo { |
31 | de08c606 | Wenchao Xia | char id_str[128]; /* unique snapshot id */ |
32 | de08c606 | Wenchao Xia | /* the following fields are informative. They are not needed for
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33 | de08c606 | Wenchao Xia | the consistency of the snapshot */
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34 | de08c606 | Wenchao Xia | char name[256]; /* user chosen name */ |
35 | de08c606 | Wenchao Xia | uint64_t vm_state_size; /* VM state info size */
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36 | de08c606 | Wenchao Xia | uint32_t date_sec; /* UTC date of the snapshot */
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37 | de08c606 | Wenchao Xia | uint32_t date_nsec; |
38 | de08c606 | Wenchao Xia | uint64_t vm_clock_nsec; /* VM clock relative to boot */
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39 | de08c606 | Wenchao Xia | } QEMUSnapshotInfo; |
40 | de08c606 | Wenchao Xia | |
41 | de08c606 | Wenchao Xia | int bdrv_snapshot_find(BlockDriverState *bs, QEMUSnapshotInfo *sn_info,
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42 | de08c606 | Wenchao Xia | const char *name); |
43 | de08c606 | Wenchao Xia | int bdrv_can_snapshot(BlockDriverState *bs);
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44 | de08c606 | Wenchao Xia | int bdrv_snapshot_create(BlockDriverState *bs,
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45 | de08c606 | Wenchao Xia | QEMUSnapshotInfo *sn_info); |
46 | de08c606 | Wenchao Xia | int bdrv_snapshot_goto(BlockDriverState *bs,
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47 | de08c606 | Wenchao Xia | const char *snapshot_id); |
48 | de08c606 | Wenchao Xia | int bdrv_snapshot_delete(BlockDriverState *bs, const char *snapshot_id); |
49 | de08c606 | Wenchao Xia | int bdrv_snapshot_list(BlockDriverState *bs,
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50 | de08c606 | Wenchao Xia | QEMUSnapshotInfo **psn_info); |
51 | de08c606 | Wenchao Xia | int bdrv_snapshot_load_tmp(BlockDriverState *bs,
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52 | de08c606 | Wenchao Xia | const char *snapshot_name); |
53 | de08c606 | Wenchao Xia | #endif |