1 /* $NetBSD: src/lib/libc/citrus/citrus_hash.h,v 1.3 2004/01/02 21:49:35 itojun Exp $ */ 2 /* $DragonFly: src/lib/libc/citrus/citrus_hash.h,v 1.1 2005/03/11 23:33:53 joerg Exp $ */ 3 4 5 /*- 6 * Copyright (c)2003 Citrus Project, 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #ifndef _CITRUS_HASH_H_ 32 #define _CITRUS_HASH_H_ 33 34 #define _CITRUS_HASH_ENTRY(type) LIST_ENTRY(type) 35 #define _CITRUS_HASH_HEAD(headname, type, hashsize) \ 36 struct headname { \ 37 LIST_HEAD(, type) chh_table[hashsize]; \ 38 } 39 #define _CITRUS_HASH_INIT(head, hashsize) \ 40 do { \ 41 int _ch_loop; \ 42 for (_ch_loop = 0; _ch_loop < hashsize; _ch_loop++) \ 43 LIST_INIT(&(head)->chh_table[_ch_loop]); \ 44 } while (/*CONSTCOND*/0) 45 #define _CITRUS_HASH_REMOVE(elm, field) LIST_REMOVE(elm, field) 46 #define _CITRUS_HASH_INSERT(head, elm, field, hashval) \ 47 LIST_INSERT_HEAD(&(head)->chh_table[hashval], elm, field) 48 #define _CITRUS_HASH_SEARCH(head, elm, field, matchfunc, key, hashval) \ 49 do { \ 50 LIST_FOREACH((elm), &(head)->chh_table[hashval], field) { \ 51 if (matchfunc((elm), key)==0) \ 52 break; \ 53 } \ 54 } while (/*CONSTCOND*/0) 55 56 __BEGIN_DECLS 57 int _citrus_string_hash_func(const char *, int); 58 __END_DECLS 59 60 #endif 61