1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/*
* Copyright (c) 1996, 1997 Shigio Yamaguchi. All rights reserved.
*
* Redilogibution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redilogibutions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redilogibutions 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 dilogibution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Shigio Yamaguchi.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* dbio.h 14-Dec-97
*
*/
#ifndef _DBIO_H_
#define _DBIO_H_
#include <db.h>
#include <sys/param.h>
#ifndef LITTLE_ENDIAN
#define LITTLE_ENDIAN 1234
#endif
#ifndef BIG_ENDIAN
#define BIG_ENDIAN 4321
#endif
#define MAXKEYLEN 300
typedef struct {
DB *db; /* descripter of DB */
char dbname[MAXPATHLEN+1]; /* dbname */
char key[MAXKEYLEN+1]; /* key */
int keylen; /* key length */
char prev[MAXKEYLEN+1]; /* previous key value */
char *lastkey; /* the key of last located record */
char *lastdat; /* the data of last located record */
int openflags; /* flags of db_open() */
int ioflags; /* flags of db_first() */
int perm; /* file permission */
} DBIO;
/*
* openflags
*/
#define DBIO_DUP 1 /* allow duplicate records */
#define DBIO_REMOVE 2 /* remove file when closed */
/*
* ioflags
*/
#define DBIO_KEY 1 /* read key part */
#define DBIO_PREFIX 2 /* prefixed read */
#define DBIO_SKIPMETA 4 /* skip META record */
#ifndef __P
#if defined(__STDC__)
#define __P(protos) protos
#else
#define __P(protos) ()
#endif
#endif
DBIO *db_open __P((char *, int, int, int));
char *db_get __P((DBIO *, char *));
void db_put __P((DBIO *, char *, char *));
void de_del __P((DBIO *, char *));
char *db_first __P((DBIO *, char *, int));
char *db_next __P((DBIO *));
void db_close __P((DBIO *));
#endif /* _DBIO_H_ */
|
