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block: add snapshot info query function bdrv_query_snapshot_info_list()

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This patch adds function bdrv_query_snapshot_info_list(), which will
retrieve snapshot info of an image in qmp object format. The implementation
is based on the code moved from qemu-img.c with modification to fit more
for qmp based block layer API.

Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Wenchao Xia 2013-06-06 12:27:57 +08:00 • committed by Stefan Hajnoczi
parent bd07684aac
commit fb0ed4539c
3 changed files with 49 additions and 15 deletions
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4
include/block/qapi.h
View file

@ -29,7 +29,9 @@
#include "block/block.h"
#include "block/snapshot.h"
void bdrv_collect_snapshots(BlockDriverState *bs , ImageInfo *info);
int bdrv_query_snapshot_info_list(BlockDriverState *bs,
SnapshotInfoList **p_list,
Error **errp);
void bdrv_collect_image_info(BlockDriverState *bs,
ImageInfo *info,
const char *filename);