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      1 /*	$NetBSD: extern.h,v 1.9 2008/08/26 21:18:38 joerg Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1991, 1993, 1994
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  *
     31  *	@(#)extern.h	8.4 (Berkeley) 6/16/94
     32  */
     33 
     34 BUFHEAD	*__add_ovflpage(HTAB *, BUFHEAD *);
     35 int	 __addel(HTAB *, BUFHEAD *, const DBT *, const DBT *);
     36 int	 __big_delete(HTAB *, BUFHEAD *);
     37 int	 __big_insert(HTAB *, BUFHEAD *, const DBT *, const DBT *);
     38 int	 __big_keydata(HTAB *, BUFHEAD *, DBT *, DBT *, int);
     39 int	 __big_return(HTAB *, BUFHEAD *, int, DBT *, int);
     40 int	 __big_split(HTAB *, BUFHEAD *, BUFHEAD *, BUFHEAD *,
     41 		int, uint32_t, SPLIT_RETURN *);
     42 int	 __buf_free(HTAB *, int, int);
     43 void	 __buf_init(HTAB *, u_int);
     44 uint32_t	 __call_hash(HTAB *, char *, int);
     45 int	 __delpair(HTAB *, BUFHEAD *, int);
     46 int	 __expand_table(HTAB *);
     47 int	 __find_bigpair(HTAB *, BUFHEAD *, int, char *, int);
     48 uint16_t	 __find_last_page(HTAB *, BUFHEAD **);
     49 void	 __free_ovflpage(HTAB *, BUFHEAD *);
     50 BUFHEAD	*__get_buf(HTAB *, uint32_t, BUFHEAD *, int);
     51 int	 __get_page(HTAB *, char *, uint32_t, int, int, int);
     52 int	 __ibitmap(HTAB *, int, int, int);
     53 uint32_t	 __log2(uint32_t);
     54 int	 __put_page(HTAB *, char *, uint32_t, int, int);
     55 void	 __reclaim_buf(HTAB *, BUFHEAD *);
     56 int	 __split_page(HTAB *, uint32_t, uint32_t);
     57 
     58 /* Default hash routine. */
     59 extern uint32_t (*__default_hash)(const void *, size_t);
     60 
     61 #ifdef HASH_STATISTICS
     62 extern int hash_accesses, hash_collisions, hash_expansions, hash_overflows;
     63 #endif
     64