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block: add image info query function bdrv_query_image_info()

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This patch adds function bdrv_query_image_info(), which will
retrieve image info in qmp object format. The implementation is
based on the code moved from qemu-img.c, but uses block layer
function to get snapshot info.

Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Wenchao Xia
2013-06-06 12:27:58 +08:00
committed by Stefan Hajnoczi
parent fb0ed4539c
commit 43526ec8d1
3 changed files with 46 additions and 14 deletions
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6
include/block/qapi.h
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@ -32,9 +32,9 @@
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);
void bdrv_query_image_info(BlockDriverState *bs,
ImageInfo **p_info,
Error **errp);
BlockInfo *bdrv_query_info(BlockDriverState *s);
BlockStats *bdrv_query_stats(const BlockDriverState *bs);