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 */ 24 25 #ifndef _BITSET_H 26 #define _BITSET_H 27 28 #ifdef __cplusplus 29 extern "C" { 30 #endif 31 32 #if (defined(_KERNEL) || defined(_KMEMUSER)) 33 #include <sys/bitmap.h> 34 #include <sys/types.h> 35 36 typedef struct bitset { 37 ulong_t *bs_set; 38 uint_t bs_words; 39 uint_t bs_fanout; 40 } bitset_t; 41 42 /* 43 * Bitset initialiation / teardown 44 */ 45 void bitset_init(bitset_t *); 46 void bitset_init_fanout(bitset_t *, uint_t); 47 void bitset_fini(bitset_t *); 48 49 /* 50 * Resize / query a bitset's holding capacity 51 */ 52 void bitset_resize(bitset_t *, uint_t); 53 uint_t bitset_capacity(bitset_t *); 54 55 /* 56 * Set / clear a bit in the set 57 */ 58 void bitset_add(bitset_t *, uint_t); 59 void bitset_del(bitset_t *, uint_t); 60 61 /* 62 * Atomic operations 63 */ 64 void bitset_atomic_add(bitset_t *, uint_t); 65 void bitset_atomic_del(bitset_t *, uint_t); 66 int bitset_atomic_test_and_add(bitset_t *, uint_t); 67 int bitset_atomic_test_and_del(bitset_t *, uint_t); 68 69 /* 70 * Bitset queries 71 */ 72 int bitset_in_set(bitset_t *, uint_t); 73 int bitset_is_null(bitset_t *); 74 uint_t bitset_find(bitset_t *); 75 76 /* 77 * Bitset computations 78 */ 79 int bitset_and(bitset_t *, bitset_t *, bitset_t *); 80 int bitset_or(bitset_t *, bitset_t *, bitset_t *); 81 int bitset_xor(bitset_t *, bitset_t *, bitset_t *); 82 83 /* 84 * Miscellaneous bitset operations 85 */ 86 void bitset_zero(bitset_t *); 87 void bitset_copy(bitset_t *, bitset_t *); 88 int bitset_match(bitset_t *, bitset_t *); 89 90 #endif /* !_KERNEL && !_KMEMUSER */ 91 92 #ifdef __cplusplus 93 } 94 #endif 95 96 #endif /* _BITSET_H */ 97