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
|
/*
This file is part of TALER
Copyright (C) 2024 Taler Systems SA
TALER 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 3, or (at your option) any later version.
TALER 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
TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
* @file pg_get_auditor_progress.c
* @brief Implementation of get_auditor_progress function
* @author Christian Grothoff
*/
#include "platform.h"
#include "taler_error_codes.h"
#include "taler_dbevents.h"
#include "taler_pq_lib.h"
#include "pg_get_auditor_progress.h"
#include "pg_helper.h"
/**
* Closure for #auditor_progress_cb().
*/
struct AuditorProgressContext
{
/**
* Where to store results.
*/
uint64_t **dst;
/**
* Offset in @e dst.
*/
unsigned int off;
/**
* Length of array at @e dst.
*/
unsigned int len;
/**
* Plugin context.
*/
struct PostgresClosure *pg;
/**
* Set to true on failure.
*/
bool failure;
};
/**
* Helper function for #TAH_PG_get_auditor_progress().
* To be called with the results of a SELECT statement
* that has returned @a num_results results.
*
* @param cls closure of type `struct AuditorProgressContext *`
* @param result the postgres result
* @param num_results the number of results in @a result
*/
static void
auditor_progress_cb (void *cls,
PGresult *result,
unsigned int num_results)
{
struct AuditorProgressContext *ctx = cls;
GNUNET_assert (num_results == ctx->len);
for (unsigned int i = 0; i < num_results; i++)
{
bool is_missing = false;
struct GNUNET_PQ_ResultSpec rs[] = {
GNUNET_PQ_result_spec_allow_null (
GNUNET_PQ_result_spec_uint64 ("progress_offset",
ctx->dst[i]),
&is_missing),
GNUNET_PQ_result_spec_end
};
if (GNUNET_OK !=
GNUNET_PQ_extract_result (result,
rs,
i))
{
GNUNET_break (0);
ctx->failure = true;
return;
}
if (is_missing)
*ctx->dst[i] = 0;
ctx->off++;
}
}
enum GNUNET_DB_QueryStatus
TAH_PG_get_auditor_progress (void *cls,
const char *progress_key,
uint64_t *progress_offset,
...)
{
struct PostgresClosure *pg = cls;
unsigned int cnt = 1;
va_list ap;
va_start (ap,
progress_offset);
while (NULL != va_arg (ap,
const char *))
{
cnt++;
(void) va_arg (ap,
uint64_t *);
}
va_end (ap);
{
const char *keys[cnt];
uint64_t *dsts[cnt];
unsigned int off = 1;
struct GNUNET_PQ_QueryParam params[] = {
GNUNET_PQ_query_param_array_ptrs_string (cnt,
keys,
pg->conn),
GNUNET_PQ_query_param_end
};
struct AuditorProgressContext ctx = {
.dst = dsts,
.len = cnt,
.pg = pg
};
enum GNUNET_DB_QueryStatus qs;
keys[0] = progress_key;
dsts[0] = progress_offset;
va_start (ap,
progress_offset);
while (off < cnt)
{
keys[off] = va_arg (ap,
const char *);
dsts[off] = va_arg (ap,
uint64_t *);
off++;
}
GNUNET_assert (NULL == va_arg (ap,
const char *));
va_end (ap);
PREPARE (pg,
"get_auditor_progress",
"SELECT"
" auditor_do_get_auditor_progress AS progress_offset"
" FROM auditor_do_get_auditor_progress "
"($1);");
ctx.off = 0;
qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
"get_auditor_progress",
params,
&auditor_progress_cb,
&ctx);
GNUNET_PQ_cleanup_query_params_closures (params);
if (ctx.failure)
return GNUNET_DB_STATUS_HARD_ERROR;
if (qs < 0)
return qs;
GNUNET_assert (ctx.off == cnt);
return qs;
}
}
|
