/*	$OpenBSD: extern.h,v 1.4 1999/02/15 05:11:23 millert Exp $	*/

/*-
 * Copyright (c) 1991, 1993, 1994
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)extern.h    8.4 (Berkeley) 6/16/94
 */

BUFHEAD	*__add_ovflpage __P((HTAB *, BUFHEAD *));
int	 __addel __P((HTAB *, BUFHEAD *, const DBT *, const DBT *));
int	 __big_delete __P((HTAB *, BUFHEAD *));
int	 __big_insert __P((HTAB *, BUFHEAD *, const DBT *, const DBT *));
int	 __big_keydata __P((HTAB *, BUFHEAD *, DBT *, DBT *, int));
int	 __big_return __P((HTAB *, BUFHEAD *, int, DBT *, int));
int	 __big_split __P((HTAB *, BUFHEAD *, BUFHEAD *, BUFHEAD *,
		int, u_int32_t, SPLIT_RETURN *));
int	 __buf_free __P((HTAB *, int, int));
void	 __buf_init __P((HTAB *, int));
u_int32_t	 __call_hash __P((HTAB *, char *, int));
int	 __delpair __P((HTAB *, BUFHEAD *, int));
int	 __expand_table __P((HTAB *));
int	 __find_bigpair __P((HTAB *, BUFHEAD *, int, char *, int));
u_int16_t	 __find_last_page __P((HTAB *, BUFHEAD **));
void	 __free_ovflpage __P((HTAB *, BUFHEAD *));
BUFHEAD	*__get_buf __P((HTAB *, u_int32_t, BUFHEAD *, int));
int	 __get_page __P((HTAB *, char *, u_int32_t, int, int, int));
int	 __ibitmap __P((HTAB *, int, int, int));
u_int32_t	 __log2 __P((u_int32_t));
int	 __put_page __P((HTAB *, char *, u_int32_t, int, int));
void	 __reclaim_buf __P((HTAB *, BUFHEAD *));
int	 __split_page __P((HTAB *, u_int32_t, u_int32_t));

/* Default hash routine. */
extern u_int32_t (*__default_hash) __P((const void *, size_t));

#ifdef HASH_STATISTICS
extern int hash_accesses, hash_collisions, hash_expansions, hash_overflows;
#endif