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 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _BITSET_H 27 #define _BITSET_H 28 29 #ifdef __cplusplus 30 extern "C" { 31 #endif 32 33 #if (defined(_KERNEL) || defined(_KMEMUSER)) 34 #include <sys/bitmap.h> 35 #include <sys/types.h> 36 37 typedef struct bitset { 38 ulong_t *bs_set; 39 uint_t bs_words; 40 } bitset_t; 41 42 /* 43 * Bitset initialiation / teardown 44 */ 45 void bitset_init(bitset_t *); 46 void bitset_fini(bitset_t *); 47 48 /* 49 * Resize / query a bitset's holding capacity 50 */ 51 void bitset_resize(bitset_t *, uint_t); 52 uint_t bitset_capacity(bitset_t *); 53 54 /* 55 * Set / clear a bit in the set 56 */ 57 void bitset_add(bitset_t *, uint_t); 58 void bitset_del(bitset_t *, uint_t); 59 60 /* 61 * Atomic operations 62 */ 63 void bitset_atomic_add(bitset_t *, uint_t); 64 void bitset_atomic_del(bitset_t *, uint_t); 65 int bitset_atomic_test_and_add(bitset_t *, uint_t); 66 int bitset_atomic_test_and_del(bitset_t *, uint_t); 67 68 /* 69 * Bitset queries 70 */ 71 int bitset_in_set(bitset_t *, uint_t); 72 int bitset_is_null(bitset_t *); 73 uint_t bitset_find(bitset_t *); 74 75 #endif /* !_KERNEL && !_KMEMUSER */ 76 77 #ifdef __cplusplus 78 } 79 #endif 80 81 #endif /* _BITSET_H */ 82