2002-06-21 03:51:40 +08:00
|
|
|
/*-
|
|
|
|
|
* 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.
|
2020-01-29 02:54:53 +08:00
|
|
|
* 3. Neither the name of the University nor the names of its contributors
|
2002-06-21 03:51:40 +08:00
|
|
|
* 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
|
|
|
|
|
* $FreeBSD: src/lib/libc/db/hash/extern.h,v 1.3 2002/03/22 09:18:22 obrien Exp $
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
BUFHEAD *__add_ovflpage(HTAB *, BUFHEAD *);
|
|
|
|
|
int __addel(HTAB *, BUFHEAD *, const DBT *, const DBT *);
|
|
|
|
|
int __big_delete(HTAB *, BUFHEAD *);
|
|
|
|
|
int __big_insert(HTAB *, BUFHEAD *, const DBT *, const DBT *);
|
|
|
|
|
int __big_keydata(HTAB *, BUFHEAD *, DBT *, DBT *, int);
|
|
|
|
|
int __big_return(HTAB *, BUFHEAD *, int, DBT *, int);
|
|
|
|
|
int __big_split(HTAB *, BUFHEAD *, BUFHEAD *, BUFHEAD *,
|
|
|
|
|
int, __uint32_t, SPLIT_RETURN *);
|
|
|
|
|
int __buf_free(HTAB *, int, int);
|
|
|
|
|
void __buf_init(HTAB *, int);
|
|
|
|
|
__uint32_t __call_hash(HTAB *, char *, int);
|
|
|
|
|
int __delpair(HTAB *, BUFHEAD *, int);
|
|
|
|
|
int __expand_table(HTAB *);
|
|
|
|
|
int __find_bigpair(HTAB *, BUFHEAD *, int, char *, int);
|
|
|
|
|
__uint16_t __find_last_page(HTAB *, BUFHEAD **);
|
|
|
|
|
void __free_ovflpage(HTAB *, BUFHEAD *);
|
|
|
|
|
BUFHEAD *__get_buf(HTAB *, __uint32_t, BUFHEAD *, int);
|
|
|
|
|
int __get_page(HTAB *, char *, __uint32_t, int, int, int);
|
|
|
|
|
int __ibitmap(HTAB *, int, int, int);
|
|
|
|
|
__uint32_t __log2(__uint32_t);
|
|
|
|
|
int __put_page(HTAB *, char *, __uint32_t, int, int);
|
|
|
|
|
void __reclaim_buf(HTAB *, BUFHEAD *);
|
|
|
|
|
int __split_page(HTAB *, __uint32_t, __uint32_t);
|
|
|
|
|
|
|
|
|
|
/* Default hash routine. */
|
|
|
|
|
extern __uint32_t (*__default_hash)(const void *, size_t);
|
|
|
|
|
|
|
|
|
|
#ifdef HASH_STATISTICS
|
|
|
|
|
extern int hash_accesses, hash_collisions, hash_expansions, hash_overflows;
|
|
|
|
|
#endif
|
