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
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
|
%% options
copyright owner = Dirk Krause
copyright year = 2015-xxxx
SPDX-License-Identifier: BSD-3-Clause
%% header
/** @file dk4dbit.h Text (dkChar) in database.
*/
#ifndef DK4CONF_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4conf.h"
#else
#include <dktools-4/dk4conf.h>
#endif
#endif
#ifndef DK4DBI_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4dbi.h"
#else
#include <dktools-4/dk4dbi.h>
#endif
#endif
#ifndef DK4DBIT8_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4dbit8.h"
#else
#include <dktools-4/dk4dbit8.h>
#endif
#endif
#ifndef DK4DBITW_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4dbitw.h"
#else
#include <dktools-4/dk4dbitw.h>
#endif
#endif
#if DK4_CHAR_SIZE > 1
/** Function to traverse text database.
*/
typedef dk4dbi_wc_traverse_fct_t dk4dbi_text_traverse_fct;
#else
/** Function to traverse text database.
*/
typedef dk4dbi_c8_traverse_fct_t dk4dbi_text_traverse_fct;
#endif
#ifdef __cplusplus
extern "C" {
#endif
/** Set text entry.
@param db Database to modify.
@param k Key text.
@param v Value text.
@param erp Error report, may be NULL.
@return 1 on success, 0 on error.
Error codes:
- DK4_E_INVALID_ARGUMENTS<br>
if db, k or vis NULL,
- DK4_E_SYNTAX<br>
if the database was opened read-only or k or v
is too long.
- DK4_E_MATH_OVERFLOW<br>
on numeric overflow in size calculation,
- DK4_E_NOT_SUPPORTED<br>
if db indicates an unsupported backend,
- DK4_E_NOT_FOUND<br>
if no record to delete was found,
- DK4_E_MEMORY_ALLOCATION_FAILED<br>
with mem.elsize and mem.nelem
set if there is not enough memory available,
- DK4_E_WRITE_FAILED<br>
if modification of the database failed.
*/
int
dk4dbi_text_set(
dk4_dbi_t *db,
const dkChar *k,
const dkChar *v,
dk4_er_t *erp
);
/** Retrieve text entry.
@param db Database to query.
@param k Key text.
@param vbuf Result buffer address.
@param vsz Pointer to size variable (in: size, out: used),
number of dkChar.
@param erp Error report, may be NULL.
@return 1 on success, 0 on error.
Error codes:
- DK4_E_INVALID_ARGUMENTS<br>
if db, k or vbufis NULL or vsz is 0,
or the length of k exceeds the key size limit,
- DK4_E_MATH_OVERFLOW<br>
on numeric overflow in size calculation,
- DK4_E_NOT_SUPPORTED<br>
if db indicates an unsupported backend,
- DK4_E_NOT_FOUND<br>
if no record was found for the key,
- DK4_E_BUFFER_TOO_SMALL<br>
if the destination buffer is too small.
*/
int
dk4dbi_text_get(
dk4_dbi_t *db,
const dkChar *k,
dkChar *vbuf,
size_t vsz,
dk4_er_t *erp
);
/** Delete text entry.
@param db Database to modify.
@param k Key text.
@param erp Error report, may be NULL.
@return 1 on success, 0 on error.
Error codes:
- DK4_E_INVALID_ARGUMENTS<br>
if db or k is NULL,
- DK4_E_SYNTAX<br>
if the database is opened read-only or the length of
k exceeds the key size limit,
- DK4_E_MATH_OVERFLOW<br>
on numeric overflow in size calculation,
- DK4_E_NOT_SUPPORTED<br>
if db indicates an unsupported backend,
- DK4_E_WRITE_FAILED<br>
if modification of the database failed,
- DK4_E_NOT_FOUND<br>
if no record for the specified key is in the database.
*/
int
dk4dbi_text_del(
dk4_dbi_t *db,
const dkChar *k,
dk4_er_t *erp
);
/** Traverse database, apply function to all text entries.
@param db Database to traverse.
@param obj Object to modify during traversal.
@param fct Function to apply to all text entries.
@return 1 on success, 0 on error (database traversed),
-1 on error (traversal aborted).
*/
int
dk4dbi_text_traverse(
dk4_dbi_t *db,
void *obj,
dk4dbi_text_traverse_fct *fct
);
#ifdef __cplusplus
}
#endif
%% module
#include "dk4conf.h"
#include "dk4dbit8.h"
#include "dk4dbitw.h"
#include "dk4dbit.h"
$!trace-include
int
dk4dbi_text_set(
dk4_dbi_t *db,
const dkChar *k,
const dkChar *v,
dk4_er_t *erp
)
{
#if DK4_CHAR_SIZE > 1
return (dk4dbi_wc_set(db, k, v, erp));
#else
return (dk4dbi_c8_set(db, k, v, erp));
#endif
}
int
dk4dbi_text_get(
dk4_dbi_t *db,
const dkChar *k,
dkChar *vbuf,
size_t vsz,
dk4_er_t *erp
)
{
#if DK4_CHAR_SIZE > 1
return (dk4dbi_wc_get(db, k, vbuf, vsz, erp));
#else
return (dk4dbi_c8_get(db, k, vbuf, vsz, erp));
#endif
}
int
dk4dbi_text_del(
dk4_dbi_t *db,
const dkChar *k,
dk4_er_t *erp
)
{
#if DK4_CHAR_SIZE > 1
return (dk4dbi_wc_del(db, k, erp));
#else
return (dk4dbi_c8_del(db, k, erp));
#endif
}
int
dk4dbi_text_traverse(
dk4_dbi_t *db,
void *obj,
dk4dbi_text_traverse_fct *fct
)
{
#if DK4_CHAR_SIZE > 1
return (dk4dbi_wc_traverse(db, obj, fct));
#else
return (dk4dbi_c8_traverse(db, obj, fct));
#endif
}
|