1/* Copyright (C) 1995-2021 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@gnu.org>, 1995.
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; version 2 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, see <https://www.gnu.org/licenses/>. */
17
18#ifndef _SIMPLE_HASH_H
19#define _SIMPLE_HASH_H
20
21#include <inttypes.h>
22#include <obstack.h>
23#include <stdint.h>
24
25typedef struct hash_table
26{
27 unsigned long int size;
28 unsigned long int filled;
29 void *first;
30 void *table;
31 struct obstack mem_pool;
32}
33hash_table;
34
35
36extern int init_hash (hash_table *htab, unsigned long int init_size) __THROW;
37extern int delete_hash (hash_table *htab) __THROW;
38extern int insert_entry (hash_table *htab, const void *key, size_t keylen,
39 void *data) __THROW;
40extern int find_entry (const hash_table *htab, const void *key, size_t keylen,
41 void **result) __THROW;
42extern int set_entry (hash_table *htab, const void *key, size_t keylen,
43 void *newval) __THROW;
44
45extern int iterate_table (const hash_table *htab, void **ptr,
46 const void **key, size_t *keylen, void **data)
47 __THROW;
48
49extern uint32_t compute_hashval (const void *key, size_t keylen)
50 __THROW;
51extern unsigned long int next_prime (unsigned long int seed) __THROW;
52
53#endif /* simple-hash.h */
54