iterate_amount_arithmetic_inconsistencies.c (5541B)
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 struct GNUNET_PQ_ResultSpec rs[] = { 79 GNUNET_PQ_result_spec_uint64 ("row_id", 80 &dc.row_id), 81 GNUNET_PQ_result_spec_uint64 ("problem_row_id", 82 &dc.problem_row_id), 83 GNUNET_PQ_result_spec_string ("operation", 84 &dc.operation), 85 TALER_PQ_RESULT_SPEC_AMOUNT ("exchange_amount", 86 &dc.exchange_amount), 87 TALER_PQ_RESULT_SPEC_AMOUNT ("auditor_amount", 88 &dc.auditor_amount), 89 GNUNET_PQ_result_spec_bool ("profitable", 90 &dc.profitable), 91 GNUNET_PQ_result_spec_bool ("suppressed", 92 &dc.suppressed), 93 GNUNET_PQ_result_spec_end 94 }; 95 enum GNUNET_GenericReturnValue rval; 96 97 if (GNUNET_OK != 98 GNUNET_PQ_extract_result (result, 99 rs, 100 i)) 101 { 102 GNUNET_break (0); 103 dcc->qs = GNUNET_DB_STATUS_HARD_ERROR; 104 return; 105 } 106 dcc->qs = i + 1; 107 rval = dcc->cb (dcc->cb_cls, 108 &dc); 109 GNUNET_PQ_cleanup_result (rs); 110 if (GNUNET_OK != rval) 111 break; 112 } 113 } 114 115 116 enum GNUNET_DB_QueryStatus 117 TALER_AUDITORDB_iterate_amount_arithmetic_inconsistencies ( 118 struct TALER_AUDITORDB_PostgresContext *pg, 119 int64_t limit, 120 uint64_t offset, 121 bool return_suppressed, 122 TALER_AUDITORDB_AmountArithmeticInconsistencyCallback cb, 123 void *cb_cls) 124 { 125 uint64_t plimit = GNUNET_MIN ((uint64_t) MAX_RECORDS, 126 TALER_AUDITORDB_abs_limit (limit)); 127 struct GNUNET_PQ_QueryParam params[] = { 128 GNUNET_PQ_query_param_uint64 (&offset), 129 GNUNET_PQ_query_param_bool (return_suppressed), 130 GNUNET_PQ_query_param_uint64 (&plimit), 131 GNUNET_PQ_query_param_end 132 }; 133 struct AmountArithmeticInconsistencyContext dcc = { 134 .cb = cb, 135 .cb_cls = cb_cls, 136 .pg = pg 137 }; 138 enum GNUNET_DB_QueryStatus qs; 139 140 PREPARE (pg, 141 "iterate_amount_arithmetic_inconsistencies_desc", 142 "SELECT" 143 " row_id" 144 ",problem_row_id" 145 ",operation" 146 ",exchange_amount" 147 ",auditor_amount" 148 ",profitable" 149 ",suppressed" 150 " FROM auditor_amount_arithmetic_inconsistency" 151 " WHERE (row_id<$1)" 152 " AND ($2 OR NOT suppressed)" 153 " ORDER BY row_id DESC" 154 " LIMIT $3" 155 ); 156 PREPARE (pg, 157 "iterate_amount_arithmetic_inconsistencies_asc", 158 "SELECT" 159 " row_id" 160 ",problem_row_id" 161 ",operation" 162 ",exchange_amount" 163 ",auditor_amount" 164 ",profitable" 165 ",suppressed" 166 " FROM auditor_amount_arithmetic_inconsistency" 167 " WHERE (row_id>$1)" 168 " AND ($2 OR NOT suppressed)" 169 " ORDER BY row_id ASC" 170 " LIMIT $3" 171 ); 172 qs = GNUNET_PQ_eval_prepared_multi_select ( 173 pg->conn, 174 (limit > 0) 175 ? "iterate_amount_arithmetic_inconsistencies_asc" 176 : "iterate_amount_arithmetic_inconsistencies_desc", 177 params, 178 &amount_arithmetic_inconsistency_cb, 179 &dcc); 180 if (qs > 0) 181 return dcc.qs; 182 GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs); 183 return qs; 184 }