Systemd/src/shared/bitmap.h

38 lines
988 B
C

/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once
#include <stdbool.h>
#include "hashmap.h"
#include "macro.h"
typedef struct Bitmap {
uint64_t *bitmaps;
size_t n_bitmaps;
size_t bitmaps_allocated;
} 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(const Bitmap *b, unsigned n);
bool bitmap_isclear(const Bitmap *b);
void bitmap_clear(Bitmap *b);
bool bitmap_iterate(const Bitmap *b, Iterator *i, unsigned *n);
bool bitmap_equal(const Bitmap *a, const Bitmap *b);
#define _BITMAP_FOREACH(n, b, i) \
for (Iterator i = {}; bitmap_iterate((b), &i, (unsigned*)&(n)); )
#define BITMAP_FOREACH(n, b) \
_BITMAP_FOREACH(n, b, UNIQ_T(i, UNIQ))
DEFINE_TRIVIAL_CLEANUP_FUNC(Bitmap*, bitmap_free);
#define _cleanup_bitmap_free_ _cleanup_(bitmap_freep)