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 30 extern "C" { 31 #endif 32 33 #if defined(_KERNEL) || defined(_FAKE_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 uint_t bs_fanout; 41 } bitset_t; 42 43 /* 44 * Bitset initialiation / teardown 45 */ 46 void bitset_init(bitset_t *); 47 void bitset_init_fanout(bitset_t *, uint_t); 48 void bitset_fini(bitset_t *); 49 50 /* 51 * Resize / query a bitset's holding capacity 52 */ 53 void bitset_resize(bitset_t *, uint_t); 54 uint_t bitset_capacity(bitset_t *); 55 56 /* 57 * Set / clear a bit in the set 58 */ 59 void bitset_add(bitset_t *, uint_t); 60 void bitset_del(bitset_t *, uint_t); 61 62 /* 63 * Atomic operations 64 */ 65 void bitset_atomic_add(bitset_t *, uint_t); 66 void bitset_atomic_del(bitset_t *, uint_t); 67 int bitset_atomic_test_and_add(bitset_t *, uint_t); 68 int bitset_atomic_test_and_del(bitset_t *, uint_t); 69 70 /* 71 * Bitset queries 72 */ 73 int bitset_in_set(bitset_t *, uint_t); 74 int bitset_is_null(bitset_t *); 75 uint_t bitset_find(bitset_t *); 76 77 /* 78 * Bitset computations 79 */ 80 int bitset_and(bitset_t *, bitset_t *, bitset_t *); 81 int bitset_or(bitset_t *, bitset_t *, bitset_t *); 82 int bitset_xor(bitset_t *, bitset_t *, bitset_t *); 83 84 /* 85 * Miscellaneous bitset operations 86 */ 87 void bitset_zero(bitset_t *); 88 void bitset_copy(bitset_t *, bitset_t *); 89 int 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