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/* $OpenBSD: hash.h,v 1.3 2017/05/30 17:22:00 yasuoka Exp $ */
/*-
* Copyright (c) 2009 Internet Initiative Japan Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* $Id: hash.h,v 1.3 2017/05/30 17:22:00 yasuoka Exp $ */
#ifndef HASH_H
#define HASH_H
#ifndef HASH_SIZE
#define HASH_SIZE 127
#endif
typedef struct HASH_LINK {
const void *key;
struct HASH_LINK *next;
void *item;
} hash_link;
typedef struct {
int (*cmp) (const void *, const void *);
uint32_t (*hash) (const void *, int);
hash_link **bucket;
size_t size;
int cur;
hash_link *bucket_cur;
} hash_table;
#ifdef __cplusplus
extern "C" {
#endif
hash_table *hash_create(int (*)(const void *, const void *), uint32_t (*) (const void *, int), int);
hash_link *hash_first(hash_table *);
hash_link *hash_next(hash_table *);
hash_link *hash_lookup(hash_table *, const void *);
int hash_insert(hash_table *, const void *, void *);
int hash_delete(hash_table *, const void *, int);
void hash_delete_all(hash_table *, int);
void hash_free(hash_table *);
#ifdef __cplusplus
}
#endif
#endif /* HASH_H */
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