xref: /netbsd-src/external/ibm-public/postfix/dist/src/util/binhash.h (revision f14316bcbc544b96a93e884bc5c2b15fd60e22ae)
1 /*	$NetBSD: binhash.h,v 1.1.1.1 2009/06/23 10:08:59 tron Exp $	*/
2 
3 #ifndef _BINHASH_H_INCLUDED_
4 #define _BINHASH_H_INCLUDED_
5 
6 /*++
7 /* NAME
8 /*	binhash 3h
9 /* SUMMARY
10 /*	hash table manager
11 /* SYNOPSIS
12 /*	#include <binhash.h>
13 /* DESCRIPTION
14 /* .nf
15 
16  /* Structure of one hash table entry. */
17 
18 typedef struct BINHASH_INFO {
19     char   *key;			/* lookup key */
20     int     key_len;			/* key length */
21     char   *value;			/* associated value */
22     struct BINHASH_INFO *next;		/* colliding entry */
23     struct BINHASH_INFO *prev;		/* colliding entry */
24 } BINHASH_INFO;
25 
26  /* Structure of one hash table. */
27 
28 typedef struct BINHASH {
29     int     size;			/* length of entries array */
30     int     used;			/* number of entries in table */
31     BINHASH_INFO **data;		/* entries array, auto-resized */
32 } BINHASH;
33 
34 extern BINHASH *binhash_create(int);
35 extern BINHASH_INFO *binhash_enter(BINHASH *, const char *, int, char *);
36 extern BINHASH_INFO *binhash_locate(BINHASH *, const char *, int);
37 extern char *binhash_find(BINHASH *, const char *, int);
38 extern void binhash_delete(BINHASH *, const char *, int, void (*) (char *));
39 extern void binhash_free(BINHASH *, void (*) (char *));
40 extern void binhash_walk(BINHASH *, void (*) (BINHASH_INFO *, char *), char *);
41 extern BINHASH_INFO **binhash_list(BINHASH *);
42 
43 /* LICENSE
44 /* .ad
45 /* .fi
46 /*	The Secure Mailer license must be distributed with this software.
47 /* AUTHOR(S)
48 /*	Wietse Venema
49 /*	IBM T.J. Watson Research
50 /*	P.O. Box 704
51 /*	Yorktown Heights, NY 10598, USA
52 /* CREATION DATE
53 /*	Thu Feb 20 16:54:29 EST 1997
54 /* LAST MODIFICATION
55 /*	%E% %U%
56 /* VERSION/RELEASE
57 /*	%I%
58 /*--*/
59 
60 #endif
61