[Libguestfs] [PATCH nbdkit v2 2/4] common/bitmap: Add bitmap_clear function.

Clears the bitmap. --- common/bitmap/bitmap.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/common/bitmap/bitmap.h b/common/bitmap/bitmap.h index 80fd5e4..0da650a 100644 --- a/common/bitmap/bitmap.h +++ b/common/bitmap/bitmap.h @@ -42,6 +42,7 @@ #define NBDKIT_BITMAP_H #include <stdint.h> +#include <string.h> #include <assert.h> #include <nbdkit-plugin.h> @@ -100,6 +101,13 @@ bitmap_free (struct bitmap *bm) */ extern int bitmap_resize (struct bitmap *bm, uint64_t new_size); +/* Clear the bitmap (set everything to zero). */ +static inline void +bitmap_clear (struct bitmap *bm) +{ + memset (bm->bitmap, 0, bm->size); +} + /* This macro calculates the byte offset in the bitmap and which * bit/mask we are addressing within that byte. * -- 2.19.2