iterate_amount_arithmetic_inconsistencies.c (5773B)
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/iterate_amount_arithmetic_inconsistencies.h" 20 21 22 /** 23 * Hard upper bound on the number of records returned by a single 24 * call, regardless of the limit requested by the client. 25 */ 26 #define MAX_RECORDS 50000 27 28 29 /** 30 * Closure for #deposit_confirmation_cb(). 31 */ 32 struct AmountArithmeticInconsistencyContext 33 { 34 35 /** 36 * Function to call for each deposit confirmation. 37 */ 38 TALER_AUDITORDB_AmountArithmeticInconsistencyCallback cb; 39 40 /** 41 * Closure for @e cb 42 */ 43 void *cb_cls; 44 45 /** 46 * Plugin context. 47 */ 48 struct TALER_AUDITORDB_PostgresContext *pg; 49 50 /** 51 * Query status to return. 52 */ 53 enum GNUNET_DB_QueryStatus qs; 54 }; 55 56 57 /** 58 * Helper function for 59 * #TALER_AUDITORDB_iterate_amount_arithmetic_inconsistencies(). 60 * To be called with the results of a SELECT statement 61 * that has returned @a num_results results. 62 * 63 * @param cls closure of type `struct DepositConfirmationContext *` 64 * @param result the postgres result 65 * @param num_results the number of results in @a result 66 */ 67 static void 68 amount_arithmetic_inconsistency_cb (void *cls, 69 PGresult *result, 70 unsigned int num_results) 71 { 72 struct AmountArithmeticInconsistencyContext *dcc = cls; 73 struct TALER_AUDITORDB_PostgresContext *pg = dcc->pg; 74 75 for (unsigned int i = 0; i < num_results; i++) 76 { 77 struct TALER_AUDITORDB_AmountArithmeticInconsistency dc; 78 /* libgnunetpq declares GNUNET_PQ_result_spec_int16() but does 79 not implement it, so the SMALLINT is read as INT8 */ 80 int64_t profitable; 81 struct GNUNET_PQ_ResultSpec rs[] = { 82 GNUNET_PQ_result_spec_uint64 ("row_id", 83 &dc.row_id), 84 GNUNET_PQ_result_spec_uint64 ("problem_row_id", 85 &dc.problem_row_id), 86 GNUNET_PQ_result_spec_string ("operation", 87 &dc.operation), 88 TALER_PQ_RESULT_SPEC_AMOUNT ("exchange_amount", 89 &dc.exchange_amount), 90 TALER_PQ_RESULT_SPEC_AMOUNT ("auditor_amount", 91 &dc.auditor_amount), 92 GNUNET_PQ_result_spec_int64 ("profitable", 93 &profitable), 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 dc.profitable = (int16_t) profitable; 110 dcc->qs = i + 1; 111 rval = dcc->cb (dcc->cb_cls, 112 &dc); 113 GNUNET_PQ_cleanup_result (rs); 114 if (GNUNET_OK != rval) 115 break; 116 } 117 } 118 119 120 enum GNUNET_DB_QueryStatus 121 TALER_AUDITORDB_iterate_amount_arithmetic_inconsistencies ( 122 struct TALER_AUDITORDB_PostgresContext *pg, 123 int64_t limit, 124 uint64_t offset, 125 bool return_suppressed, 126 TALER_AUDITORDB_AmountArithmeticInconsistencyCallback cb, 127 void *cb_cls) 128 { 129 uint64_t plimit = GNUNET_MIN ((uint64_t) MAX_RECORDS, 130 TALER_AUDITORDB_abs_limit (limit)); 131 struct GNUNET_PQ_QueryParam params[] = { 132 GNUNET_PQ_query_param_uint64 (&offset), 133 GNUNET_PQ_query_param_bool (return_suppressed), 134 GNUNET_PQ_query_param_uint64 (&plimit), 135 GNUNET_PQ_query_param_end 136 }; 137 struct AmountArithmeticInconsistencyContext dcc = { 138 .cb = cb, 139 .cb_cls = cb_cls, 140 .pg = pg 141 }; 142 enum GNUNET_DB_QueryStatus qs; 143 144 PREPARE (pg, 145 "iterate_amount_arithmetic_inconsistencies_desc", 146 "SELECT" 147 " row_id" 148 ",problem_row_id" 149 ",operation" 150 ",exchange_amount" 151 ",auditor_amount" 152 ",profitable::INT8 AS profitable" 153 ",suppressed" 154 " FROM auditor_amount_arithmetic_inconsistency" 155 " WHERE (row_id<$1)" 156 " AND ($2 OR NOT suppressed)" 157 " ORDER BY row_id DESC" 158 " LIMIT $3" 159 ); 160 PREPARE (pg, 161 "iterate_amount_arithmetic_inconsistencies_asc", 162 "SELECT" 163 " row_id" 164 ",problem_row_id" 165 ",operation" 166 ",exchange_amount" 167 ",auditor_amount" 168 ",profitable::INT8 AS profitable" 169 ",suppressed" 170 " FROM auditor_amount_arithmetic_inconsistency" 171 " WHERE (row_id>$1)" 172 " AND ($2 OR NOT suppressed)" 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_amount_arithmetic_inconsistencies_asc" 180 : "iterate_amount_arithmetic_inconsistencies_desc", 181 params, 182 &amount_arithmetic_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 }