diff options
Diffstat (limited to 'lib/libc/db/hash/extern.h')
| -rw-r--r-- | lib/libc/db/hash/extern.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/lib/libc/db/hash/extern.h b/lib/libc/db/hash/extern.h new file mode 100644 index 0000000..9ae5832 --- /dev/null +++ b/lib/libc/db/hash/extern.h @@ -0,0 +1,66 @@ +/*- + * 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 + * $FreeBSD$ + */ + +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, u_int32_t, SPLIT_RETURN *); +int __buf_free(HTAB *, int, int); +void __buf_init(HTAB *, int); +u_int32_t __call_hash(HTAB *, char *, int); +int __delpair(HTAB *, BUFHEAD *, int); +int __expand_table(HTAB *); +int __find_bigpair(HTAB *, BUFHEAD *, int, char *, int); +u_int16_t __find_last_page(HTAB *, BUFHEAD **); +void __free_ovflpage(HTAB *, BUFHEAD *); +BUFHEAD *__get_buf(HTAB *, u_int32_t, BUFHEAD *, int); +int __get_page(HTAB *, char *, u_int32_t, int, int, int); +int __ibitmap(HTAB *, int, int, int); +u_int32_t __log2(u_int32_t); +int __put_page(HTAB *, char *, u_int32_t, int, int); +void __reclaim_buf(HTAB *, BUFHEAD *); +int __split_page(HTAB *, u_int32_t, u_int32_t); + +/* Default hash routine. */ +extern u_int32_t (*__default_hash)(const void *, size_t); + +#ifdef HASH_STATISTICS +extern int hash_accesses, hash_collisions, hash_expansions, hash_overflows; +#endif |
