1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright 2017 RackTop Systems.
24 */
25
26#ifndef	_BITSET_H
27#define	_BITSET_H
28
29#ifdef	__cplusplus
30extern "C" {
31#endif
32
33#if defined(_KERNEL) || defined(_FAKE_KERNEL) || defined(_KMEMUSER)
34#include <sys/bitmap.h>
35#include <sys/types.h>
36
37typedef struct bitset {
38	ulong_t	*bs_set;
39	uint_t	bs_words;
40	uint_t	bs_fanout;
41} bitset_t;
42
43/*
44 * Bitset initialiation / teardown
45 */
46void		bitset_init(bitset_t *);
47void		bitset_init_fanout(bitset_t *, uint_t);
48void		bitset_fini(bitset_t *);
49
50/*
51 * Resize / query a bitset's holding capacity
52 */
53void		bitset_resize(bitset_t *, uint_t);
54uint_t		bitset_capacity(bitset_t *);
55
56/*
57 * Set / clear a bit in the set
58 */
59void		bitset_add(bitset_t *, uint_t);
60void		bitset_del(bitset_t *, uint_t);
61
62/*
63 * Atomic operations
64 */
65void		bitset_atomic_add(bitset_t *, uint_t);
66void		bitset_atomic_del(bitset_t *, uint_t);
67int		bitset_atomic_test_and_add(bitset_t *, uint_t);
68int		bitset_atomic_test_and_del(bitset_t *, uint_t);
69
70/*
71 * Bitset queries
72 */
73int		bitset_in_set(bitset_t *, uint_t);
74int		bitset_is_null(bitset_t *);
75uint_t		bitset_find(bitset_t *);
76
77/*
78 * Bitset computations
79 */
80int		bitset_and(bitset_t *, bitset_t *, bitset_t *);
81int		bitset_or(bitset_t *, bitset_t *, bitset_t *);
82int		bitset_xor(bitset_t *, bitset_t *, bitset_t *);
83
84/*
85 * Miscellaneous bitset operations
86 */
87void		bitset_zero(bitset_t *);
88void		bitset_copy(bitset_t *, bitset_t *);
89int		bitset_match(bitset_t *, bitset_t *);
90
91#endif	/* _KERNEL || _FAKE_KERNEL || _KMEMUSER */
92
93#ifdef	__cplusplus
94}
95#endif
96
97#endif /* _BITSET_H */
98