lib/libc/citrus/citrus_hash.c

   1 /*      $NetBSD: src/lib/libc/citrus/citrus_hash.c,v 1.1 2003/06/25 09:51:32 tshiozak Exp $     */
   2 /*      $DragonFly: src/lib/libc/citrus/citrus_hash.c,v 1.2 2005/03/16 06:13:24 joerg Exp $ */
   3
   4
   5 /*-
   6  * Copyright (c)2003 Citrus Project,
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  */
  30
  31 #include <assert.h>
  32 #include <stdio.h>
  33 #include <string.h>
  34 #include <sys/types.h>
  35
  36 #include "citrus_namespace.h"
  37 #include "citrus_types.h"
  38 #include "citrus_region.h"
  39 #include "citrus_hash.h"
  40 #include "citrus_db_hash.h"
  41
  42 int
  43 _citrus_string_hash_func(const char *key, int hashsize)
  44 {
  45         struct _region r;
  46
  47         _region_init(&r, __DECONST(char *, key), strlen(key));
  48
  49         return (int)(_db_hash_std(NULL, &r) % (uint32_t)hashsize);
  50 }