iterate_reserve_not_closed_inconsistencies.c (6258B)
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_pq_lib.h" 17 #include "pg_helper.h" 18 #include "auditor-database/iterate_reserve_not_closed_inconsistencies.h" 19 20 21 /** 22 * Hard upper bound on the number of records returned by a single 23 * call, regardless of the limit requested by the client. 24 */ 25 #define MAX_RECORDS 50000 26 27 28 struct ReserveNotClosedInconsistencyContext 29 { 30 31 /** 32 * Function to call for each bad sig loss. 33 */ 34 TALER_AUDITORDB_ReserveNotClosedInconsistencyCallback cb; 35 36 /** 37 * Closure for @e cb 38 */ 39 void *cb_cls; 40 41 /** 42 * Plugin context. 43 */ 44 struct TALER_AUDITORDB_PostgresContext *pg; 45 46 /** 47 * Query status to return. 48 */ 49 enum GNUNET_DB_QueryStatus qs; 50 }; 51 52 53 /** 54 * Helper function for #TALER_AUDITORDB_iterate_reserve_not_closed_inconsistencies(). 55 * To be called with the results of a SELECT statement 56 * that has returned @a num_results results. 57 * 58 * @param cls closure of type `struct ReserveNotClosedInconsistencyContext *` 59 * @param result the postgres result 60 * @param num_results the number of results in @a result 61 */ 62 static void 63 reserve_not_closed_inconsistency_cb (void *cls, 64 PGresult *result, 65 unsigned int num_results) 66 { 67 struct ReserveNotClosedInconsistencyContext *dcc = cls; 68 struct TALER_AUDITORDB_PostgresContext *pg = dcc->pg; 69 70 for (unsigned int i = 0; i < num_results; i++) 71 { 72 /* 'expiration_time' and 'diagnostic' are nullable in the schema; 73 initialize them so that a NULL yields "never"/absent instead of 74 failing the extraction for the entire page. */ 75 struct TALER_AUDITORDB_ReserveNotClosedInconsistency dc = { 76 .expiration_time = GNUNET_TIME_UNIT_FOREVER_ABS, 77 .diagnostic = NULL 78 }; 79 struct GNUNET_PQ_ResultSpec rs[] = { 80 GNUNET_PQ_result_spec_uint64 ("row_id", 81 &dc.row_id), 82 GNUNET_PQ_result_spec_auto_from_type ("reserve_pub", 83 &dc.reserve_pub), 84 TALER_PQ_RESULT_SPEC_AMOUNT ("balance", 85 &dc.balance), 86 GNUNET_PQ_result_spec_allow_null ( 87 GNUNET_PQ_result_spec_absolute_time ("expiration_time", 88 &dc.expiration_time), 89 NULL), 90 GNUNET_PQ_result_spec_allow_null ( 91 GNUNET_PQ_result_spec_string ("diagnostic", 92 &dc.diagnostic), 93 NULL), 94 GNUNET_PQ_result_spec_bool ("suppressed", 95 &dc.suppressed), 96 GNUNET_PQ_result_spec_end 97 }; 98 enum GNUNET_GenericReturnValue rval; 99 100 if (GNUNET_OK != 101 GNUNET_PQ_extract_result (result, 102 rs, 103 i)) 104 { 105 GNUNET_break (0); 106 dcc->qs = GNUNET_DB_STATUS_HARD_ERROR; 107 return; 108 } 109 dcc->qs = i + 1; 110 rval = dcc->cb (dcc->cb_cls, 111 &dc); 112 GNUNET_PQ_cleanup_result (rs); 113 if (GNUNET_OK != rval) 114 break; 115 } 116 } 117 118 119 enum GNUNET_DB_QueryStatus 120 TALER_AUDITORDB_iterate_reserve_not_closed_inconsistencies (struct 121 TALER_AUDITORDB_PostgresContext 122 *pg, 123 int64_t limit, 124 uint64_t offset, 125 bool 126 return_suppressed, 127 TALER_AUDITORDB_ReserveNotClosedInconsistencyCallback 128 cb, 129 void *cb_cls) 130 { 131 uint64_t plimit = GNUNET_MIN ((uint64_t) MAX_RECORDS, 132 TALER_AUDITORDB_abs_limit (limit)); 133 struct GNUNET_PQ_QueryParam params[] = { 134 GNUNET_PQ_query_param_uint64 (&offset), 135 GNUNET_PQ_query_param_bool (return_suppressed), 136 GNUNET_PQ_query_param_uint64 (&plimit), 137 GNUNET_PQ_query_param_end 138 }; 139 struct ReserveNotClosedInconsistencyContext dcc = { 140 .cb = cb, 141 .cb_cls = cb_cls, 142 .pg = pg 143 }; 144 enum GNUNET_DB_QueryStatus qs; 145 146 PREPARE (pg, 147 "iterate_reserve_not_closed_inconsistencies_desc", 148 "SELECT" 149 " row_id" 150 ",reserve_pub" 151 ",balance" 152 ",expiration_time" 153 ",diagnostic" 154 ",suppressed" 155 " FROM auditor_reserve_not_closed_inconsistency" 156 " WHERE (row_id < $1)" 157 " AND ($2 OR suppressed is false)" 158 " ORDER BY row_id DESC" 159 " LIMIT $3" 160 ); 161 PREPARE (pg, 162 "iterate_reserve_not_closed_inconsistencies_asc", 163 "SELECT" 164 " row_id" 165 ",reserve_pub" 166 ",balance" 167 ",expiration_time" 168 ",diagnostic" 169 ",suppressed" 170 " FROM auditor_reserve_not_closed_inconsistency" 171 " WHERE (row_id > $1)" 172 " AND ($2 OR suppressed is false)" 173 " ORDER BY row_id ASC" 174 " LIMIT $3" 175 ); 176 qs = GNUNET_PQ_eval_prepared_multi_select ( 177 pg->conn, 178 (limit > 0) 179 ? "iterate_reserve_not_closed_inconsistencies_asc" 180 : "iterate_reserve_not_closed_inconsistencies_desc", 181 params, 182 &reserve_not_closed_inconsistency_cb, 183 &dcc); 184 if (qs > 0) 185 return dcc.qs; 186 GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs); 187 return qs; 188 }