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hbitmap: Add @advance param to hbitmap_iter_next()

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This new parameter allows the caller to just query the next dirty
position without moving the iterator.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20180613181823.13618-8-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Max Reitz 2018-06-13 20:18:16 +02:00
parent ec9f10fe06
commit a33fbb4f8b
5 changed files with 26 additions and 19 deletions
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5
include/qemu/hbitmap.h
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@ -324,11 +324,14 @@ void hbitmap_free_meta(HBitmap *hb);
/**
* hbitmap_iter_next:
* @hbi: HBitmapIter to operate on.
* @advance: If true, advance the iterator. Otherwise, the next call
* of this function will return the same result (if that
* position is still dirty).
*
* Return the next bit that is set in @hbi's associated HBitmap,
* or -1 if all remaining bits are zero.
*/
int64_t hbitmap_iter_next(HBitmapIter *hbi);
int64_t hbitmap_iter_next(HBitmapIter *hbi, bool advance);
/**
* hbitmap_iter_next_word: