Loading...
Searching...
No Matches
bitmap.h
/*
* Copyright 2009 Red Hat Inc., Durham, North Carolina.
* All Rights Reserved.
*
* This library 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.
*
* This library 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Authors:
* "Daniel Kopecek" <dkopecek@redhat.com>
*/
#pragma once
#ifndef BITMAP_H
#define BITMAP_H
#include <stdint.h>
#include "../../../../common/util.h"
typedef uint32_t bitmap_cell_t;
typedef uint16_t bitmap_size_t;
typedef int32_t bitmap_bitn_t;
typedef struct {
#if defined(SEAP_THREAD_SAFE)
uint8_t locked;
#endif
bitmap_size_t size; /* bit capacity = size * BITMAP_CELLSIZE */
bitmap_size_t realsize;
bitmap_cell_t *cells;
bitmap_bitn_t count;
} bitmap_t;
#if defined(SEAP_THREAD_SAFE)
# define BITMAP_INITIALIZER { 0, 128, 0, NULL, 0 }
#else
# define BITMAP_INITIALIZER { 128, 0, NULL, 0 }
#endif
#define BITMAP_CELLSIZE (sizeof (bitmap_cell_t) * 8)
bitmap_t *bitmap_new (bitmap_size_t size);
int *bitmap_init (bitmap_t *bitmap, bitmap_size_t size);
int *bitmap_reinit (bitmap_t *bitmap, bitmap_size_t size);
int bitmap_set (bitmap_t *bitmap, bitmap_bitn_t bitn);
int bitmap_cas (bitmap_t *bitmap, bitmap_bitn_t bitn, int v);
int bitmap_unset (bitmap_t *bitmap, bitmap_bitn_t bitn);
int bitmap_clear (bitmap_t *bitmap);
bitmap_bitn_t bitmap_setfree (bitmap_t *bitmap);
bitmap_bitn_t bitmap_getfree (bitmap_t *bitmap);
void bitmap_free (bitmap_t *bitmap);
#endif
bitmap_t
Definition bitmap.h:35