src/basic/bitmap.h

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 #pragma once
   4
   5 /***
   6   This file is part of systemd.
   7
   8   Copyright 2015 Tom Gundersen
   9
  10   systemd is free software; you can redistribute it and/or modify it
  11   under the terms of the GNU Lesser General Public License as published by
  12   the Free Software Foundation; either version 2.1 of the License, or
  13   (at your option) any later version.
  14
  15   systemd is distributed in the hope that it will be useful, but
  16   WITHOUT ANY WARRANTY; without even the implied warranty of
  17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18   Lesser General Public License for more details.
  19
  20   You should have received a copy of the GNU Lesser General Public License
  21   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  22 ***/
  23
  24 #include "hashmap.h"
  25 #include "macro.h"
  26
  27 typedef struct Bitmap Bitmap;
  28
  29 Bitmap *bitmap_new(void);
  30
  31 void bitmap_free(Bitmap *b);
  32
  33 int bitmap_ensure_allocated(Bitmap **b);
  34
  35 int bitmap_set(Bitmap *b, unsigned n);
  36 void bitmap_unset(Bitmap *b, unsigned n);
  37 bool bitmap_isset(Bitmap *b, unsigned n);
  38 bool bitmap_isclear(Bitmap *b);
  39 void bitmap_clear(Bitmap *b);
  40
  41 bool bitmap_iterate(Bitmap *b, Iterator *i, unsigned *n);
  42
  43 bool bitmap_equal(Bitmap *a, Bitmap *b);
  44
  45 #define BITMAP_FOREACH(n, b, i) \
  46         for ((i).idx = 0; bitmap_iterate((b), &(i), (unsigned*)&(n)); )
  47
  48 DEFINE_TRIVIAL_CLEANUP_FUNC(Bitmap*, bitmap_free);
  49
  50 #define _cleanup_bitmap_free_ _cleanup_(bitmap_freep)