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Diffstat (limited to 'src/libbasic/include/basic/bitmap.h')
-rw-r--r-- | src/libbasic/include/basic/bitmap.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/libbasic/include/basic/bitmap.h b/src/libbasic/include/basic/bitmap.h new file mode 100644 index 0000000000..63fdbe8bea --- /dev/null +++ b/src/libbasic/include/basic/bitmap.h @@ -0,0 +1,49 @@ +#pragma once + +/*** + This file is part of systemd. + + Copyright 2015 Tom Gundersen + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <stdbool.h> + +#include "hashmap.h" +#include "macro.h" + +typedef struct Bitmap Bitmap; + +Bitmap *bitmap_new(void); +Bitmap *bitmap_copy(Bitmap *b); +int bitmap_ensure_allocated(Bitmap **b); +void bitmap_free(Bitmap *b); + +int bitmap_set(Bitmap *b, unsigned n); +void bitmap_unset(Bitmap *b, unsigned n); +bool bitmap_isset(Bitmap *b, unsigned n); +bool bitmap_isclear(Bitmap *b); +void bitmap_clear(Bitmap *b); + +bool bitmap_iterate(Bitmap *b, Iterator *i, unsigned *n); + +bool bitmap_equal(Bitmap *a, Bitmap *b); + +#define BITMAP_FOREACH(n, b, i) \ + for ((i).idx = 0; bitmap_iterate((b), &(i), (unsigned*)&(n)); ) + +DEFINE_TRIVIAL_CLEANUP_FUNC(Bitmap*, bitmap_free); + +#define _cleanup_bitmap_free_ _cleanup_(bitmap_freep) |