iterate_fee_time_inconsistencies.c (5146B)
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_fee_time_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 /** 29 * Closure for #feetimeinconsistency_cb(). 30 */ 31 struct FeeTimeInconsistencyContext 32 { 33 34 /** 35 * Function to call for each fee time inconsistency 36 */ 37 TALER_AUDITORDB_FeeTimeInconsistencyCallback cb; 38 39 /** 40 * Closure for @e cb 41 */ 42 void *cb_cls; 43 44 /** 45 * Plugin context. 46 */ 47 struct TALER_AUDITORDB_PostgresContext *pg; 48 49 /** 50 * Query status to return. 51 */ 52 enum GNUNET_DB_QueryStatus qs; 53 }; 54 55 56 /** 57 * Helper function for #TALER_AUDITORDB_iterate_fee_time_inconsistencies(). 58 * To be called with the results of a SELECT statement 59 * that has returned @a num_results results. 60 * 61 * @param cls closure of type `struct Emergency *` 62 * @param result the postgres result 63 * @param num_results the number of results in @a result 64 */ 65 static void 66 fee_time_inconsistency_cb (void *cls, 67 PGresult *result, 68 unsigned int num_results) 69 { 70 struct FeeTimeInconsistencyContext *dcc = cls; 71 for (unsigned int i = 0; i < num_results; i++) 72 { 73 struct TALER_AUDITORDB_FeeTimeInconsistency dc; 74 struct GNUNET_PQ_ResultSpec rs[] = { 75 GNUNET_PQ_result_spec_uint64 ("row_id", 76 &dc.row_id), 77 GNUNET_PQ_result_spec_uint64 ("problem_row_id", 78 &dc.problem_row_id), 79 GNUNET_PQ_result_spec_string ("fee_type", 80 &dc.type), 81 GNUNET_PQ_result_spec_absolute_time ("fee_time", 82 &dc.time), 83 GNUNET_PQ_result_spec_string ("diagnostic", 84 &dc.diagnostic), 85 GNUNET_PQ_result_spec_bool ("suppressed", 86 &dc.suppressed), 87 GNUNET_PQ_result_spec_end 88 }; 89 enum GNUNET_GenericReturnValue rval; 90 91 if (GNUNET_OK != 92 GNUNET_PQ_extract_result (result, 93 rs, 94 i)) 95 { 96 GNUNET_break (0); 97 dcc->qs = GNUNET_DB_STATUS_HARD_ERROR; 98 return; 99 } 100 dcc->qs = i + 1; 101 rval = dcc->cb (dcc->cb_cls, 102 &dc); 103 GNUNET_PQ_cleanup_result (rs); 104 if (GNUNET_OK != rval) 105 break; 106 } 107 } 108 109 110 enum GNUNET_DB_QueryStatus 111 TALER_AUDITORDB_iterate_fee_time_inconsistencies ( 112 struct TALER_AUDITORDB_PostgresContext *pg, 113 int64_t limit, 114 uint64_t offset, 115 bool return_suppressed, 116 TALER_AUDITORDB_FeeTimeInconsistencyCallback cb, 117 void *cb_cls) 118 { 119 uint64_t plimit = GNUNET_MIN ((uint64_t) MAX_RECORDS, 120 TALER_AUDITORDB_abs_limit (limit)); 121 struct GNUNET_PQ_QueryParam params[] = { 122 GNUNET_PQ_query_param_uint64 (&offset), 123 GNUNET_PQ_query_param_bool (return_suppressed), 124 GNUNET_PQ_query_param_uint64 (&plimit), 125 GNUNET_PQ_query_param_end 126 }; 127 struct FeeTimeInconsistencyContext dcc = { 128 .cb = cb, 129 .cb_cls = cb_cls, 130 .pg = pg 131 }; 132 enum GNUNET_DB_QueryStatus qs; 133 134 PREPARE (pg, 135 "iterate_fee_time_inconsistencies_inconsistency_get_desc", 136 "SELECT" 137 " row_id" 138 ",problem_row_id" 139 ",fee_type" 140 ",fee_time" 141 ",diagnostic" 142 ",suppressed" 143 " FROM auditor_fee_time_inconsistency" 144 " WHERE (row_id < $1)" 145 " AND ($2 OR NOT suppressed)" 146 " ORDER BY row_id DESC" 147 " LIMIT $3" 148 ); 149 PREPARE (pg, 150 "iterate_fee_time_inconsistencies_inconsistency_get_asc", 151 "SELECT" 152 " row_id" 153 ",problem_row_id" 154 ",fee_type" 155 ",fee_time" 156 ",diagnostic" 157 ",suppressed" 158 " FROM auditor_fee_time_inconsistency" 159 " WHERE (row_id > $1)" 160 " AND ($2 OR NOT suppressed)" 161 " ORDER BY row_id ASC" 162 " LIMIT $3" 163 ); 164 qs = GNUNET_PQ_eval_prepared_multi_select ( 165 pg->conn, 166 (limit > 0) 167 ? "iterate_fee_time_inconsistencies_inconsistency_get_asc" 168 : "iterate_fee_time_inconsistencies_inconsistency_get_desc", 169 params, 170 &fee_time_inconsistency_cb, 171 &dcc); 172 if (qs > 0) 173 return dcc.qs; 174 GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs); 175 return qs; 176 }