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
|
/*
* $Id$
*
* Copyright (C) 2004 FhG FOKUS
* Copyright (C) 2008 iptelorg GmbH
* Written by Jan Janak <jan@iptel.org>
*
* This file is part of SER, a free SIP server.
*
* SER is free software; you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any later
* version.
*
* SER is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/** \addtogroup flatstore
* @{
*/
/** \file
* Inmplementation of flatstore commands.
*/
#include "flat_cmd.h"
#include "flat_con.h"
#include "flatstore_mod.h"
#include "../../mem/mem.h"
#include <string.h>
#include <errno.h>
/** Destroys a flat_cmd structure.
* This function frees all memory used by flat_cmd structure.
* @param cmd A pointer to generic db_cmd command being freed.
* @param payload A pointer to flat_cmd structure to be freed.
*/
static void flat_cmd_free(db_cmd_t* cmd, struct flat_cmd* payload)
{
db_drv_free(&payload->gen);
pkg_free(payload);
}
int flat_cmd(db_cmd_t* cmd)
{
struct flat_cmd* fcmd;
db_con_t* con;
if (cmd->type != DB_PUT) {
ERR("flatstore: The driver supports PUT operation only.\n");
return -1;
}
if (DB_FLD_EMPTY(cmd->vals)) {
ERR("flatstore: PUT command with no values encountered\n");
return -1;
}
fcmd = (struct flat_cmd*)pkg_malloc(sizeof(struct flat_cmd));
if (fcmd == NULL) {
ERR("flatstore: No memory left\n");
return -1;
}
memset(fcmd, '\0', sizeof(struct flat_cmd));
if (db_drv_init(&fcmd->gen, flat_cmd_free) < 0) goto error;
/* FIXME */
con = cmd->ctx->con[db_payload_idx];
if (flat_open_table(&fcmd->file_index, con, &cmd->table) < 0) goto error;
DB_SET_PAYLOAD(cmd, fcmd);
return 0;
error:
if (fcmd) {
DB_SET_PAYLOAD(cmd, NULL);
db_drv_free(&fcmd->gen);
pkg_free(fcmd);
}
return -1;
}
int flat_put(db_res_t* res, db_cmd_t* cmd)
{
struct flat_cmd* fcmd;
struct flat_con* fcon;
db_con_t* con;
int i;
FILE* f;
char delims[4], *s;
size_t len;
fcmd = DB_GET_PAYLOAD(cmd);
/* FIXME */
con = cmd->ctx->con[db_payload_idx];
fcon = DB_GET_PAYLOAD(con);
f = fcon->file[fcmd->file_index].f;
if (f == NULL) {
ERR("flatstore: Cannot write, file handle not open\n");
return -1;
}
if (flat_local_timestamp < *flat_rotate) {
flat_con_disconnect(con);
if (flat_con_connect(con) < 0) {
ERR("flatstore: Error while rotating files\n");
return -1;
}
flat_local_timestamp = *flat_rotate;
}
for(i = 0; !DB_FLD_EMPTY(cmd->vals) && !DB_FLD_LAST(cmd->vals[i]); i++) {
if (i) {
if (fprintf(f, "%c", flat_delimiter.s[0]) < 0) goto error;
}
/* TODO: how to distinguish NULL from empty */
if (cmd->vals[i].flags & DB_NULL) continue;
switch(cmd->vals[i].type) {
case DB_INT:
if (fprintf(f, "%d", cmd->vals[i].v.int4) < 0) goto error;
break;
case DB_FLOAT:
if (fprintf(f, "%f", cmd->vals[i].v.flt) < 0) goto error;
break;
case DB_DOUBLE:
if (fprintf(f, "%f", cmd->vals[i].v.dbl) < 0) goto error;
break;
case DB_DATETIME:
if (fprintf(f, "%u", (unsigned int)cmd->vals[i].v.time) < 0)
goto error;
break;
case DB_CSTR:
s = cmd->vals[i].v.cstr;
delims[0] = flat_delimiter.s[0];
delims[1] = flat_record_delimiter.s[0];
delims[2] = flat_escape.s[0];
delims[3] = '\0';
while (*s) {
len = strcspn(s, delims);
if (fprintf(f, "%.*s", (int)len, s) < 0) goto error;
s += len;
if (*s) {
/* FIXME: do not use the escaped value for easier parsing */
if (fprintf(f, "%c%c", flat_escape.s[0], *s) < 0) goto error;
s++;
}
}
break;
case DB_STR:
case DB_BLOB:
/* FIXME: rewrite */
s = cmd->vals[i].v.lstr.s;
len = cmd->vals[i].v.lstr.len;
while (len > 0) {
char *c;
for (c = s; len > 0 &&
*c != flat_delimiter.s[0] &&
*c != flat_record_delimiter.s[0] &&
*c != flat_escape.s[0];
c++, len--);
if (fprintf(f, "%.*s", (int)(c-s), s) < 0) goto error;
s = c;
if (len > 0) {
if (fprintf(f, "%c%c", flat_escape.s[0], *s) < 0) goto error;
s++;
len--;
}
}
break;
case DB_BITMAP:
if (fprintf(f, "%u", cmd->vals[i].v.bitmap) < 0) goto error;
break;
default:
BUG("flatstore: Unsupported field type %d\n", cmd->vals[i].type);
return -1;
}
}
if (fprintf(f, "%c", flat_record_delimiter.s[0]) < 0) goto error;
if (flat_flush && (fflush(f) != 0)) {
ERR("flatstore: Error while flushing file: %s\n", strerror(errno));
return -1;
}
return 0;
error:
ERR("flastore: Error while writing data to file\n");
return -1;
}
/** @} */
|
