newlib/libc/search/extern.h

   1 /*-
   2  * Copyright (c) 1991, 1993, 1994
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  *      @(#)extern.h    8.4 (Berkeley) 6/16/94
  30  * $FreeBSD: src/lib/libc/db/hash/extern.h,v 1.3 2002/03/22 09:18:22 obrien Exp $
  31  */
  32
  33 BUFHEAD *__add_ovflpage(HTAB *, BUFHEAD *);
  34 int      __addel(HTAB *, BUFHEAD *, const DBT *, const DBT *);
  35 int      __big_delete(HTAB *, BUFHEAD *);
  36 int      __big_insert(HTAB *, BUFHEAD *, const DBT *, const DBT *);
  37 int      __big_keydata(HTAB *, BUFHEAD *, DBT *, DBT *, int);
  38 int      __big_return(HTAB *, BUFHEAD *, int, DBT *, int);
  39 int      __big_split(HTAB *, BUFHEAD *, BUFHEAD *, BUFHEAD *,
  40                 int, __uint32_t, SPLIT_RETURN *);
  41 int      __buf_free(HTAB *, int, int);
  42 void     __buf_init(HTAB *, int);
  43 __uint32_t       __call_hash(HTAB *, char *, int);
  44 int      __delpair(HTAB *, BUFHEAD *, int);
  45 int      __expand_table(HTAB *);
  46 int      __find_bigpair(HTAB *, BUFHEAD *, int, char *, int);
  47 __uint16_t       __find_last_page(HTAB *, BUFHEAD **);
  48 void     __free_ovflpage(HTAB *, BUFHEAD *);
  49 BUFHEAD *__get_buf(HTAB *, __uint32_t, BUFHEAD *, int);
  50 int      __get_page(HTAB *, char *, __uint32_t, int, int, int);
  51 int      __ibitmap(HTAB *, int, int, int);
  52 __uint32_t       __log2(__uint32_t);
  53 int      __put_page(HTAB *, char *, __uint32_t, int, int);
  54 void     __reclaim_buf(HTAB *, BUFHEAD *);
  55 int      __split_page(HTAB *, __uint32_t, __uint32_t);
  56
  57 /* Default hash routine. */
  58 extern __uint32_t (*__default_hash)(const void *, size_t);
  59
  60 #ifdef HASH_STATISTICS
  61 extern int hash_accesses, hash_collisions, hash_expansions, hash_overflows;
  62 #endif