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
|
/*
This file is part of TALER
Copyright (C) 2022 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 exchangedb/pg_select_withdrawals_above_serial_id.c
* @brief Implementation of the select_withdrawals_above_serial_id function for Postgres
* @author Christian Grothoff
*/
#include "platform.h"
#include "taler_error_codes.h"
#include "taler_dbevents.h"
#include "taler_pq_lib.h"
#include "pg_select_withdrawals_above_serial_id.h"
#include "pg_helper.h"
/**
* Closure for #reserves_out_serial_helper_cb().
*/
struct ReservesOutSerialContext
{
/**
* Callback to call.
*/
TALER_EXCHANGEDB_WithdrawCallback cb;
/**
* Closure for @e cb.
*/
void *cb_cls;
/**
* Plugin context.
*/
struct PostgresClosure *pg;
/**
* Status code, set to #GNUNET_SYSERR on hard errors.
*/
enum GNUNET_GenericReturnValue status;
};
/**
* Helper function to be called with the results of a SELECT statement
* that has returned @a num_results results.
*
* @param cls closure of type `struct ReservesOutSerialContext`
* @param result the postgres result
* @param num_results the number of results in @a result
*/
static void
reserves_out_serial_helper_cb (void *cls,
PGresult *result,
unsigned int num_results)
{
struct ReservesOutSerialContext *rosc = cls;
struct PostgresClosure *pg = rosc->pg;
for (unsigned int i = 0; i<num_results; i++)
{
struct TALER_BlindedCoinHashP h_blind_ev;
struct TALER_DenominationPublicKey denom_pub;
struct TALER_ReservePublicKeyP reserve_pub;
struct TALER_ReserveSignatureP reserve_sig;
struct GNUNET_TIME_Timestamp execution_date;
struct TALER_Amount amount_with_fee;
uint64_t rowid;
struct GNUNET_PQ_ResultSpec rs[] = {
GNUNET_PQ_result_spec_auto_from_type ("h_blind_ev",
&h_blind_ev),
TALER_PQ_result_spec_denom_pub ("denom_pub",
&denom_pub),
GNUNET_PQ_result_spec_auto_from_type ("reserve_pub",
&reserve_pub),
GNUNET_PQ_result_spec_auto_from_type ("reserve_sig",
&reserve_sig),
GNUNET_PQ_result_spec_timestamp ("execution_date",
&execution_date),
TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
&amount_with_fee),
GNUNET_PQ_result_spec_uint64 ("reserve_out_serial_id",
&rowid),
GNUNET_PQ_result_spec_end
};
enum GNUNET_GenericReturnValue ret;
if (GNUNET_OK !=
GNUNET_PQ_extract_result (result,
rs,
i))
{
GNUNET_break (0);
rosc->status = GNUNET_SYSERR;
return;
}
ret = rosc->cb (rosc->cb_cls,
rowid,
&h_blind_ev,
&denom_pub,
&reserve_pub,
&reserve_sig,
execution_date,
&amount_with_fee);
GNUNET_PQ_cleanup_result (rs);
if (GNUNET_OK != ret)
break;
}
}
enum GNUNET_DB_QueryStatus
TEH_PG_select_withdrawals_above_serial_id (
void *cls,
uint64_t serial_id,
TALER_EXCHANGEDB_WithdrawCallback cb,
void *cb_cls)
{
struct PostgresClosure *pg = cls;
struct GNUNET_PQ_QueryParam params[] = {
GNUNET_PQ_query_param_uint64 (&serial_id),
GNUNET_PQ_query_param_end
};
struct ReservesOutSerialContext rosc = {
.cb = cb,
.cb_cls = cb_cls,
.pg = pg,
.status = GNUNET_OK
};
enum GNUNET_DB_QueryStatus qs;
/* Fetch deposits with rowid '\geq' the given parameter */
PREPARE (pg,
"audit_get_reserves_out_incr",
"SELECT"
" h_blind_ev"
",denom.denom_pub"
",reserve_sig"
",reserves.reserve_pub"
",execution_date"
",amount_with_fee_val"
",amount_with_fee_frac"
",reserve_out_serial_id"
" FROM reserves_out"
" JOIN reserves"
" USING (reserve_uuid)"
" JOIN denominations denom"
" USING (denominations_serial)"
" WHERE reserve_out_serial_id>=$1"
" ORDER BY reserve_out_serial_id ASC;");
qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
"audit_get_reserves_out_incr",
params,
&reserves_out_serial_helper_cb,
&rosc);
if (GNUNET_OK != rosc.status)
return GNUNET_DB_STATUS_HARD_ERROR;
return qs;
}
|
