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
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
#ifndef gdbmobj_h
#define gdbmobj_h
/*
** Copyright 1998 - 2007 Double Precision, Inc. See COPYING for
** distribution information.
*/
#include "config.h"
#include <gdbm.h>
#include <stdlib.h>
#ifdef __cplusplus
extern "C" {
#endif
struct gdbmobj {
GDBM_FILE dbf;
int has_dbf;
char *prev_key;
size_t prev_key_len;
} ;
void gdbmobj_init(struct gdbmobj *);
int gdbmobj_open(struct gdbmobj *, const char *, const char *);
void gdbmobj_close(struct gdbmobj *);
#define gdbmobj_isopen(p) (!!(p)->has_dbf)
char *gdbmobj_fetch(struct gdbmobj *, const char *, size_t, size_t *, const char *);
int gdbmobj_exists(struct gdbmobj *, const char *, size_t);
int gdbmobj_delete(struct gdbmobj *, const char *, size_t);
int gdbmobj_store(struct gdbmobj *, const char *, size_t, const char *,
size_t, const char *);
char *gdbmobj_firstkey(struct gdbmobj *, size_t *, char **, size_t *);
char *gdbmobj_nextkey(struct gdbmobj *, size_t *, char **, size_t *);
#ifdef __cplusplus
}
#include <string>
class GdbmObj {
struct gdbmobj obj;
GdbmObj(const GdbmObj &); /* Undefined */
GdbmObj &operator=(const GdbmObj &); /* Undefined */
public:
GdbmObj() { gdbmobj_init(&obj); }
~GdbmObj() { gdbmobj_close(&obj); }
int Open(std::string filename, const char *mode)
{
return ( gdbmobj_open(&obj, filename.c_str(), mode));
}
int IsOpen() { return (gdbmobj_isopen(&obj)); }
void Close() { gdbmobj_close(&obj); }
std::string Fetch(std::string key, std::string mode)
{
size_t l;
char *p=Fetch(key.c_str(), key.size(), l, mode.c_str());
if (!p) return "";
std::string v(p, p+l);
free(p);
return v;
}
bool Exists(std::string key)
{
return !!Exists(key.c_str(), key.size());
}
bool Delete(std::string key)
{
return !!Delete(key.c_str(), key.size());
}
int Store(std::string key, std::string val, std::string mode)
{
return Store(key.c_str(), key.size(),
val.c_str(), val.size(), mode.c_str());
}
std::string FetchFirstKeyVal(std::string &valRet)
{
char *key;
size_t keyLen;
char *val;
size_t valLen;
key=FetchFirstKeyVal(keyLen, val, valLen);
if (!key)
return "";
std::string r(key, key+keyLen);
valRet=std::string(val, val+valLen);
free(val);
return r;
}
std::string FetchNextKeyVal(std::string &valRet)
{
char *key;
size_t keyLen;
char *val;
size_t valLen;
key=FetchNextKeyVal(keyLen, val, valLen);
if (!key)
return "";
std::string r(key, key+keyLen);
valRet=std::string(val, val+valLen);
free(val);
return r;
}
char *Fetch(const char *key, size_t keylen,
size_t &valuelen, const char *mode)
{
return (gdbmobj_fetch(&obj, key, keylen,
&valuelen, mode));
}
int Exists(const char *key, size_t keylen)
{
return (gdbmobj_exists(&obj, key, keylen));
}
int Delete(const char *key, size_t keylen)
{
return (gdbmobj_delete(&obj, key, keylen));
}
int Store(const char *key, size_t keylen,
const char *value, size_t valuelen,
const char *mode)
{
return (gdbmobj_store(&obj, key, keylen, value,
valuelen, mode));
}
char *FetchFirstKeyVal(size_t &keylen, char *&val, size_t &vallen)
{
return (gdbmobj_firstkey(&obj, &keylen, &val, &vallen));
}
char *FetchNextKeyVal(size_t &keylen, char *&val, size_t &vallen)
{
return (gdbmobj_nextkey(&obj, &keylen, &val, &vallen));
}
} ;
#endif
#endif
|
