1 /* Copyright (C) 1995-2022 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 This program is free software; you can redistribute it and/or modify 5 it under the terms of the GNU General Public License as published 6 by the Free Software Foundation; version 2 of the License, or 7 (at your option) any later version. 8 9 This program is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 GNU General Public License for more details. 13 14 You should have received a copy of the GNU General Public License 15 along with this program; if not, see <https://www.gnu.org/licenses/>. */ 16 17 #ifndef _SIMPLE_HASH_H 18 #define _SIMPLE_HASH_H 19 20 #include <inttypes.h> 21 #include <obstack.h> 22 #include <stdint.h> 23 24 typedef struct hash_table 25 { 26 unsigned long int size; 27 unsigned long int filled; 28 void *first; 29 void *table; 30 struct obstack mem_pool; 31 } 32 hash_table; 33 34 35 extern int init_hash (hash_table *htab, unsigned long int init_size) __THROW; 36 extern int delete_hash (hash_table *htab) __THROW; 37 extern int insert_entry (hash_table *htab, const void *key, size_t keylen, 38 void *data) __THROW; 39 extern int find_entry (const hash_table *htab, const void *key, size_t keylen, 40 void **result) __THROW; 41 extern int set_entry (hash_table *htab, const void *key, size_t keylen, 42 void *newval) __THROW; 43 44 extern int iterate_table (const hash_table *htab, void **ptr, 45 const void **key, size_t *keylen, void **data) 46 __THROW; 47 48 extern uint32_t compute_hashval (const void *key, size_t keylen) 49 __THROW; 50 extern unsigned long int next_prime (unsigned long int seed) __THROW; 51 52 #endif /* simple-hash.h */ 53