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| author | Max Reitz | 2019-02-01 20:29:18 +0100 |
|---|---|---|
| committer | Max Reitz | 2019-02-25 15:11:26 +0100 |
| commit | 1e89d0f9bed7e95278d151cf6308cafbba8dae9f (patch) | |
| tree | 77a82dc50b4d4610018eba8005bab113537f84a6 /include/block/block.h | |
| parent | block: Fix bdrv_find_backing_image() (diff) | |
| download | qemu-1e89d0f9bed7e95278d151cf6308cafbba8dae9f.tar.gz qemu-1e89d0f9bed7e95278d151cf6308cafbba8dae9f.tar.xz qemu-1e89d0f9bed7e95278d151cf6308cafbba8dae9f.zip | |
block: Add bdrv_dirname()
This function may be implemented by block drivers to derive a directory
name from a BDS. Concatenating this g_free()-able string with a relative
filename must result in a valid (not necessarily existing) filename, so
this is a function that should generally be not implemented by format
drivers, because this is protocol-specific.
If a BDS's driver does not implement this function, bdrv_dirname() will
fall through to the BDS's file if it exists. If it does not, the
exact_filename field will be used to generate a directory name.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Message-id: 20190201192935.18394-15-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'include/block/block.h')
| -rw-r--r-- | include/block/block.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/block/block.h b/include/block/block.h index 42cc38f598..5b5cf868df 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -491,6 +491,7 @@ char *bdrv_get_full_backing_filename(BlockDriverState *bs, Error **errp); char *bdrv_get_full_backing_filename_from_filename(const char *backed, const char *backing, Error **errp); +char *bdrv_dirname(BlockDriverState *bs, Error **errp); int path_has_protocol(const char *path); int path_is_absolute(const char *path); |