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extern.h revision 1.1 
      1 /*-
      2  * Copyright (c) 1991, 1993
      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. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  *
     33  *	@(#)extern.h	8.1 (Berkeley) 6/4/93
     34  */
     35 
     36 BUFHEAD	*__add_ovflpage __P((HTAB *, BUFHEAD *));
     37 int	 __addel __P((HTAB *, BUFHEAD *, const DBT *, const DBT *));
     38 int	 __big_delete __P((HTAB *, BUFHEAD *));
     39 int	 __big_insert __P((HTAB *, BUFHEAD *, const DBT *, const DBT *));
     40 int	 __big_keydata __P((HTAB *, BUFHEAD *, DBT *, DBT *, int));
     41 int	 __big_return __P((HTAB *, BUFHEAD *, int, DBT *, int));
     42 int	 __big_split __P((HTAB *, BUFHEAD *, BUFHEAD *, BUFHEAD *,
     43 		int, u_int, SPLIT_RETURN *));
     44 int	 __buf_free __P((HTAB *, int, int));
     45 void	 __buf_init __P((HTAB *, int));
     46 u_int	 __call_hash __P((HTAB *, char *, int));
     47 int	 __delpair __P((HTAB *, BUFHEAD *, int));
     48 int	 __expand_table __P((HTAB *));
     49 int	 __find_bigpair __P((HTAB *, BUFHEAD *, int, char *, int));
     50 u_short	 __find_last_page __P((HTAB *, BUFHEAD **));
     51 void	 __free_ovflpage __P((HTAB *, BUFHEAD *));
     52 BUFHEAD	*__get_buf __P((HTAB *, u_int, BUFHEAD *, int));
     53 int	 __get_page __P((HTAB *, char *, u_int, int, int, int));
     54 int	 __init_bitmap __P((HTAB *, int, int, int));
     55 u_int	 __log2 __P((u_int));
     56 int	 __put_page __P((HTAB *, char *, u_int, int, int));
     57 void	 __reclaim_buf __P((HTAB *, BUFHEAD *));
     58 int	 __split_page __P((HTAB *, u_int, u_int));
     59 
     60 /* Default hash routine. */
     61 extern int	(*__default_hash) __P((u_char *, int));
     62 
     63 #ifdef HASH_STATISTICS
     64 extern long hash_accesses, hash_collisions, hash_expansions, hash_overflows;
     65 #endif
     66