53e1b68390
This follows what the kernel is doing, c.f. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5fd54ace4721fc5ce2bb5aef6318fcf17f421460.
51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#pragma once
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/***
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This file is part of systemd.
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Copyright 2015 Tom Gundersen
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <stdbool.h>
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#include "hashmap.h"
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#include "macro.h"
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typedef struct Bitmap Bitmap;
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Bitmap *bitmap_new(void);
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Bitmap *bitmap_copy(Bitmap *b);
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int bitmap_ensure_allocated(Bitmap **b);
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void bitmap_free(Bitmap *b);
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int bitmap_set(Bitmap *b, unsigned n);
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void bitmap_unset(Bitmap *b, unsigned n);
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bool bitmap_isset(Bitmap *b, unsigned n);
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bool bitmap_isclear(Bitmap *b);
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void bitmap_clear(Bitmap *b);
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bool bitmap_iterate(Bitmap *b, Iterator *i, unsigned *n);
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bool bitmap_equal(Bitmap *a, Bitmap *b);
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#define BITMAP_FOREACH(n, b, i) \
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for ((i).idx = 0; bitmap_iterate((b), &(i), (unsigned*)&(n)); )
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DEFINE_TRIVIAL_CLEANUP_FUNC(Bitmap*, bitmap_free);
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#define _cleanup_bitmap_free_ _cleanup_(bitmap_freep)
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