get_auditor_closure_lags.c (4902B)
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_dbevents.h" 18 #include "taler/taler_pq_lib.h" 19 #include "pg_helper.h" 20 #include "auditor-database/get_auditor_closure_lags.h" 21 22 23 struct ClosureLagsContext 24 { 25 26 /** 27 * Function to call for each closure lag . 28 */ 29 TALER_AUDITORDB_ClosureLagsCallback cb; 30 31 /** 32 * Closure for @e cb 33 */ 34 void *cb_cls; 35 36 /** 37 * Plugin context. 38 */ 39 struct TALER_AUDITORDB_PostgresContext *pg; 40 41 /** 42 * Query status to return. 43 */ 44 enum GNUNET_DB_QueryStatus qs; 45 }; 46 47 48 /** 49 * Helper function for #TALER_AUDITORDB_get_auditor_closure_lags(). 50 * To be called with the results of a SELECT statement 51 * that has returned @a num_results results. 52 * 53 * @param cls closure of type `struct ClosureLagsContext *` 54 * @param result the postgres result 55 * @param num_results the number of results in @a result 56 */ 57 static void 58 closure_lags_cb (void *cls, 59 PGresult *result, 60 unsigned int num_results) 61 { 62 struct ClosureLagsContext *dcc = cls; 63 struct TALER_AUDITORDB_PostgresContext *pg = dcc->pg; 64 65 for (unsigned int i = 0; i < num_results; i++) 66 { 67 struct TALER_AUDITORDB_ClosureLags dc; 68 struct GNUNET_PQ_ResultSpec rs[] = { 69 GNUNET_PQ_result_spec_uint64 ("row_id", 70 &dc.row_id), 71 GNUNET_PQ_result_spec_uint64 ("problem_row_id", 72 &dc.problem_row_id), 73 TALER_PQ_RESULT_SPEC_AMOUNT ("amount", 74 &dc.amount), 75 GNUNET_PQ_result_spec_absolute_time ("deadline", 76 &dc.deadline), 77 GNUNET_PQ_result_spec_auto_from_type ("wtid", 78 &dc.wtid), 79 GNUNET_PQ_result_spec_string ("account", 80 &dc.account.full_payto), 81 GNUNET_PQ_result_spec_bool ("suppressed", 82 &dc.suppressed), 83 GNUNET_PQ_result_spec_end 84 }; 85 enum GNUNET_GenericReturnValue rval; 86 87 if (GNUNET_OK != 88 GNUNET_PQ_extract_result (result, 89 rs, 90 i)) 91 { 92 GNUNET_break (0); 93 dcc->qs = GNUNET_DB_STATUS_HARD_ERROR; 94 return; 95 } 96 dcc->qs = i + 1; 97 rval = dcc->cb (dcc->cb_cls, 98 &dc); 99 GNUNET_PQ_cleanup_result (rs); 100 if (GNUNET_OK != rval) 101 break; 102 } 103 } 104 105 106 enum GNUNET_DB_QueryStatus 107 TALER_AUDITORDB_get_auditor_closure_lags ( 108 struct TALER_AUDITORDB_PostgresContext *pg, 109 int64_t limit, 110 uint64_t offset, 111 bool return_suppressed, 112 TALER_AUDITORDB_ClosureLagsCallback cb, 113 void *cb_cls) 114 { 115 uint64_t plimit = (uint64_t) ((limit < 0) ? -limit : limit); 116 struct GNUNET_PQ_QueryParam params[] = { 117 GNUNET_PQ_query_param_uint64 (&offset), 118 GNUNET_PQ_query_param_bool (return_suppressed), 119 GNUNET_PQ_query_param_uint64 (&plimit), 120 GNUNET_PQ_query_param_end 121 }; 122 struct ClosureLagsContext dcc = { 123 .cb = cb, 124 .cb_cls = cb_cls, 125 .pg = pg 126 }; 127 enum GNUNET_DB_QueryStatus qs; 128 129 PREPARE (pg, 130 "auditor_closure_lags_get_desc", 131 "SELECT" 132 " row_id" 133 ",problem_row_id" 134 ",amount" 135 ",deadline" 136 ",wtid" 137 ",account" 138 ",suppressed" 139 " FROM auditor_closure_lags" 140 " WHERE (row_id < $1)" 141 " AND ($2 OR NOT suppressed)" 142 " ORDER BY row_id DESC" 143 " LIMIT $3" 144 ); 145 PREPARE (pg, 146 "auditor_closure_lags_get_asc", 147 "SELECT" 148 " row_id" 149 ",problem_row_id" 150 ",amount" 151 ",deadline" 152 ",wtid" 153 ",account" 154 ",suppressed" 155 " FROM auditor_closure_lags" 156 " WHERE (row_id > $1)" 157 " AND ($2 OR NOT suppressed)" 158 " ORDER BY row_id ASC" 159 " LIMIT $3" 160 ); 161 qs = GNUNET_PQ_eval_prepared_multi_select ( 162 pg->conn, 163 (limit > 0) 164 ? "auditor_closure_lags_get_asc" 165 : "auditor_closure_lags_get_desc", 166 params, 167 &closure_lags_cb, 168 &dcc); 169 if (qs > 0) 170 return dcc.qs; 171 GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs); 172 return qs; 173 }