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 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, write to the Free Software Foundation,
  17    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  18
  19 #ifndef _SIMPLE_HASH_H
  20 #define _SIMPLE_HASH_H
  21
  22 #include <obstack.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 unsigned long int 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 */