Line data Source code
1 : /*
2 : This file is part of TALER
3 : Copyright (C) 2024 Taler Systems SA
4 :
5 : TALER is free software; you can redistribute it and/or modify it under the
6 : terms of the GNU General Public License as published by the Free Software
7 : Foundation; either version 3, or (at your option) any later version.
8 :
9 : TALER is distributed in the hope that it will be useful, but WITHOUT ANY
10 : WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
11 : A PARTICULAR PURPOSE. See the GNU General Public License for more details.
12 :
13 : You should have received a copy of the GNU General Public License along with
14 : TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
15 : */
16 : #include "taler/taler_error_codes.h"
17 : #include "taler/taler_pq_lib.h"
18 : #include "pg_helper.h"
19 : #include "auditor-database/get_emergency_by_count.h"
20 :
21 :
22 : /**
23 : * Closure for #emergency_cb().
24 : */
25 : struct EmergencyByCountContext
26 : {
27 :
28 : /**
29 : * Function to call for each deposit confirmation.
30 : */
31 : TALER_AUDITORDB_EmergenciesByCountCallback cb;
32 :
33 : /**
34 : * Closure for @e cb
35 : */
36 : void *cb_cls;
37 :
38 : /**
39 : * Plugin context.
40 : */
41 : struct TALER_AUDITORDB_PostgresContext *pg;
42 :
43 : /**
44 : * Query status to return.
45 : */
46 : enum GNUNET_DB_QueryStatus qs;
47 : };
48 :
49 :
50 : /**
51 : * Helper function for #TALER_AUDITORDB_get_emergency_by_count().
52 : * To be called with the results of a SELECT statement
53 : * that has returned @a num_results results.
54 : *
55 : * @param cls closure of type `struct Emergency *`
56 : * @param result the postgres result
57 : * @param num_results the number of results in @a result
58 : */
59 : static void
60 0 : emergency_by_count_cb (void *cls,
61 : PGresult *result,
62 : unsigned int num_results)
63 : {
64 0 : struct EmergencyByCountContext *dcc = cls;
65 0 : struct TALER_AUDITORDB_PostgresContext *pg = dcc->pg;
66 :
67 0 : for (unsigned int i = 0; i < num_results; i++)
68 : {
69 : struct TALER_AUDITORDB_EmergenciesByCount dc;
70 0 : struct GNUNET_PQ_ResultSpec rs[] = {
71 0 : GNUNET_PQ_result_spec_uint64 ("row_id",
72 : &dc.row_id),
73 0 : GNUNET_PQ_result_spec_auto_from_type ("denompub_h",
74 : &dc.denompub_h),
75 0 : GNUNET_PQ_result_spec_uint64 ("num_issued",
76 : &dc.num_issued),
77 0 : GNUNET_PQ_result_spec_uint64 ("num_known",
78 : &dc.num_known),
79 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("risk",
80 : &dc.risk),
81 0 : GNUNET_PQ_result_spec_absolute_time ("start",
82 : &dc.start),
83 0 : GNUNET_PQ_result_spec_absolute_time ("deposit_end",
84 : &dc.deposit_end),
85 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("value",
86 : &dc.value),
87 0 : GNUNET_PQ_result_spec_bool ("suppressed",
88 : &dc.suppressed),
89 : GNUNET_PQ_result_spec_end
90 : };
91 : enum GNUNET_GenericReturnValue rval;
92 :
93 0 : if (GNUNET_OK !=
94 0 : GNUNET_PQ_extract_result (result,
95 : rs,
96 : i))
97 : {
98 0 : GNUNET_break (0);
99 0 : dcc->qs = GNUNET_DB_STATUS_HARD_ERROR;
100 0 : return;
101 : }
102 0 : dcc->qs = i + 1;
103 0 : rval = dcc->cb (dcc->cb_cls,
104 : &dc);
105 0 : GNUNET_PQ_cleanup_result (rs);
106 0 : if (GNUNET_OK != rval)
107 0 : break;
108 : }
109 : }
110 :
111 :
112 : enum GNUNET_DB_QueryStatus
113 0 : TALER_AUDITORDB_get_emergency_by_count (struct TALER_AUDITORDB_PostgresContext *
114 : pg,
115 : int64_t limit,
116 : uint64_t offset,
117 : bool return_suppressed,
118 : TALER_AUDITORDB_EmergenciesByCountCallback
119 : cb,
120 : void *cb_cls)
121 : {
122 0 : uint64_t plimit = (uint64_t) ((limit < 0) ? -limit : limit);
123 0 : struct GNUNET_PQ_QueryParam params[] = {
124 0 : GNUNET_PQ_query_param_uint64 (&offset),
125 0 : GNUNET_PQ_query_param_bool (return_suppressed),
126 0 : GNUNET_PQ_query_param_uint64 (&plimit),
127 : GNUNET_PQ_query_param_end
128 : };
129 0 : struct EmergencyByCountContext dcc = {
130 : .cb = cb,
131 : .cb_cls = cb_cls,
132 : .pg = pg
133 : };
134 : enum GNUNET_DB_QueryStatus qs;
135 :
136 0 : PREPARE (pg,
137 : "auditor_emergency_by_count_get_desc",
138 : "SELECT"
139 : " row_id"
140 : ",denompub_h"
141 : ",num_issued"
142 : ",num_known"
143 : ",risk"
144 : ",start"
145 : ",deposit_end"
146 : ",value"
147 : ",suppressed"
148 : " FROM auditor_emergency_by_count"
149 : " WHERE (row_id < $1)"
150 : " AND ($2 OR NOT suppressed)"
151 : " ORDER BY row_id DESC"
152 : " LIMIT $3"
153 : );
154 0 : PREPARE (pg,
155 : "auditor_emergency_by_count_get_asc",
156 : "SELECT"
157 : " row_id"
158 : ",denompub_h"
159 : ",num_issued"
160 : ",num_known"
161 : ",risk"
162 : ",start"
163 : ",deposit_end"
164 : ",value"
165 : ",suppressed"
166 : " FROM auditor_emergency_by_count"
167 : " WHERE (row_id > $1)"
168 : " AND ($2 OR NOT suppressed)"
169 : " ORDER BY row_id ASC"
170 : " LIMIT $3"
171 : );
172 0 : qs = GNUNET_PQ_eval_prepared_multi_select (
173 : pg->conn,
174 : (limit > 0)
175 : ? "auditor_emergency_by_count_get_asc"
176 : : "auditor_emergency_by_count_get_desc",
177 : params,
178 : &emergency_by_count_cb,
179 : &dcc);
180 0 : if (qs > 0)
181 0 : return dcc.qs;
182 0 : GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs);
183 0 : return qs;
184 : }
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