citrus_hash.h revision 331722 
1/* $FreeBSD: stable/11/lib/libc/iconv/citrus_hash.h 331722 2018-03-29 02:50:57Z eadler $ */
2/* $NetBSD: citrus_hash.h,v 1.3 2004/01/02 21:49:35 itojun Exp $ */
3
4/*-
5 * Copyright (c)2003 Citrus Project,
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#ifndef _CITRUS_HASH_H_
31#define _CITRUS_HASH_H_
32
33#define _CITRUS_HASH_ENTRY(type) LIST_ENTRY(type)
34#define _CITRUS_HASH_HEAD(headname, type, hashsize)	\
35struct headname {					\
36	LIST_HEAD(, type)	chh_table[hashsize];	\
37}
38#define _CITRUS_HASH_INIT(head, hashsize)			\
39do {								\
40	int _ch_loop;						\
41								\
42	for (_ch_loop = 0; _ch_loop < hashsize; _ch_loop++)	\
43		LIST_INIT(&(head)->chh_table[_ch_loop]);	\
44} while (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)	\
49do {									\
50	LIST_FOREACH((elm), &(head)->chh_table[hashval], field)		\
51		if (matchfunc((elm), key) == 0)				\
52			break;						\
53} while (0)
54
55__BEGIN_DECLS
56int	 _citrus_string_hash_func(const char *, int);
57__END_DECLS
58
59#endif
60