From e9ca00107ce06dfb9c624dab4664724ffeeb74e5 Mon Sep 17 00:00:00 2001 From: Dario Faggioli Date: Fri, 6 Jul 2012 13:17:43 +0100 Subject: [PATCH] libxl: expand the libxl_bitmap API a bit By adding copying and *_is_full/*_is_empty facilities. Signed-off-by: Dario Faggioli Acked-by: Ian Campbell Committed-by: Ian Campbell --- tools/libxl/libxl_utils.c | 30 ++++++++++++++++++++++++++++++ tools/libxl/libxl_utils.h | 4 ++++ 2 files changed, 34 insertions(+) diff --git a/tools/libxl/libxl_utils.c b/tools/libxl/libxl_utils.c index 0301bd00a3..1bda3cae6c 100644 --- a/tools/libxl/libxl_utils.c +++ b/tools/libxl/libxl_utils.c @@ -510,6 +510,36 @@ void libxl_bitmap_dispose(libxl_bitmap *map) free(map->map); } +void libxl_bitmap_copy(libxl_ctx *ctx, libxl_bitmap *dptr, + const libxl_bitmap *sptr) +{ + int sz; + + assert(dptr->size == sptr->size); + sz = dptr->size = sptr->size; + memcpy(dptr->map, sptr->map, sz * sizeof(*dptr->map)); +} + +int libxl_bitmap_is_full(const libxl_bitmap *bitmap) +{ + int i; + + for (i = 0; i < bitmap->size; i++) + if (bitmap->map[i] != (uint8_t)-1) + return 0; + return 1; +} + +int libxl_bitmap_is_empty(const libxl_bitmap *bitmap) +{ + int i; + + for (i = 0; i < bitmap->size; i++) + if (bitmap->map[i]) + return 0; + return 1; +} + int libxl_bitmap_test(const libxl_bitmap *bitmap, int bit) { if (bit >= bitmap->size * 8) diff --git a/tools/libxl/libxl_utils.h b/tools/libxl/libxl_utils.h index 74ab611502..b2c5ec783b 100644 --- a/tools/libxl/libxl_utils.h +++ b/tools/libxl/libxl_utils.h @@ -66,6 +66,10 @@ int libxl_vdev_to_device_disk(libxl_ctx *ctx, uint32_t domid, const char *vdev, int libxl_bitmap_alloc(libxl_ctx *ctx, libxl_bitmap *bitmap, int n_bits); /* Allocated bimap is from malloc, libxl_bitmap_dispose() to be * called by the application when done. */ +void libxl_bitmap_copy(libxl_ctx *ctx, libxl_bitmap *dptr, + const libxl_bitmap *sptr); +int libxl_bitmap_is_full(const libxl_bitmap *bitmap); +int libxl_bitmap_is_empty(const libxl_bitmap *bitmap); int libxl_bitmap_test(const libxl_bitmap *bitmap, int bit); void libxl_bitmap_set(libxl_bitmap *bitmap, int bit); void libxl_bitmap_reset(libxl_bitmap *bitmap, int bit); -- 2.39.5