locale/programs/simple-hash.h

   1 /* Copyright (C) 1995-1999, 2001, 2002, 2005 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 version 2 as
   7    published by the Free Software Foundation.
   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, write to the Free Software Foundation,
  16    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  17
  18 #ifndef _SIMPLE_HASH_H
  19 #define _SIMPLE_HASH_H
  20
  21 #include <obstack.h>
  22
  23 typedef struct hash_table
  24 {
  25   unsigned long int size;
  26   unsigned long int filled;
  27   void *first;
  28   void *table;
  29   struct obstack mem_pool;
  30 }
  31 hash_table;
  32
  33
  34 extern int init_hash (hash_table *htab, unsigned long int init_size) __THROW;
  35 extern int delete_hash (hash_table *htab) __THROW;
  36 extern int insert_entry (hash_table *htab, const void *key, size_t keylen,
  37                          void *data) __THROW;
  38 extern int find_entry (const hash_table *htab, const void *key, size_t keylen,
  39                        void **result) __THROW;
  40 extern int set_entry (hash_table *htab, const void *key, size_t keylen,
  41                       void *newval) __THROW;
  42
  43 extern int iterate_table (const hash_table *htab, void **ptr,
  44                           const void **key, size_t *keylen, void **data)
  45      __THROW;
  46
  47 extern unsigned long int compute_hashval (const void *key, size_t keylen)
  48      __THROW;
  49 extern unsigned long int next_prime (unsigned long int seed) __THROW;
  50
  51 #endif /* simple-hash.h */