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block: New bdrv_next() 

This is a more flexible alternative to bdrv_iterate().

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Markus Armbruster 2010-06-02 18:55:20 +02:00 committed by Kevin Wolf
parent ac59eb95f3
commit 2f399b0aad
2 changed files with 9 additions and 0 deletions
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8
block.c
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@ -1330,6 +1330,14 @@ BlockDriverState *bdrv_find(const char *name)
return NULL;
}
BlockDriverState *bdrv_next(BlockDriverState *bs)
{
if (!bs) {
return QTAILQ_FIRST(&bdrv_states);
}
return QTAILQ_NEXT(bs, list);
}
void bdrv_iterate(void (*it)(void *opaque, BlockDriverState *bs), void *opaque)
{
BlockDriverState *bs;

1
block.h
View File

@ -168,6 +168,7 @@ void bdrv_set_change_cb(BlockDriverState *bs,
void (*change_cb)(void *opaque), void *opaque);
void bdrv_get_format(BlockDriverState *bs, char *buf, int buf_size);
BlockDriverState *bdrv_find(const char *name);
BlockDriverState *bdrv_next(BlockDriverState *bs);
void bdrv_iterate(void (*it)(void *opaque, BlockDriverState *bs),
void *opaque);
int bdrv_is_encrypted(BlockDriverState *bs);