pg_get_auditor_closure_lags.c (4869B)
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/platform.h" 17 #include "taler/taler_error_codes.h" 18 #include "taler/taler_dbevents.h" 19 #include "taler/taler_pq_lib.h" 20 #include "pg_helper.h" 21 #include "pg_get_auditor_closure_lags.h" 22 23 24 struct ClosureLagsContext 25 { 26 27 /** 28 * Function to call for each closure lag . 29 */ 30 TALER_AUDITORDB_ClosureLagsCallback cb; 31 32 /** 33 * Closure for @e cb 34 */ 35 void *cb_cls; 36 37 /** 38 * Plugin context. 39 */ 40 struct PostgresClosure *pg; 41 42 /** 43 * Query status to return. 44 */ 45 enum GNUNET_DB_QueryStatus qs; 46 }; 47 48 49 /** 50 * Helper function for #TAH_PG_get_auditor_closure_lags(). 51 * To be called with the results of a SELECT statement 52 * that has returned @a num_results results. 53 * 54 * @param cls closure of type `struct ClosureLagsContext *` 55 * @param result the postgres result 56 * @param num_results the number of results in @a result 57 */ 58 static void 59 closure_lags_cb (void *cls, 60 PGresult *result, 61 unsigned int num_results) 62 { 63 struct ClosureLagsContext *dcc = cls; 64 struct PostgresClosure *pg = dcc->pg; 65 66 for (unsigned int i = 0; i < num_results; i++) 67 { 68 struct TALER_AUDITORDB_ClosureLags dc; 69 struct GNUNET_PQ_ResultSpec rs[] = { 70 GNUNET_PQ_result_spec_uint64 ("row_id", 71 &dc.row_id), 72 GNUNET_PQ_result_spec_uint64 ("problem_row_id", 73 &dc.problem_row_id), 74 TALER_PQ_RESULT_SPEC_AMOUNT ("amount", 75 &dc.amount), 76 GNUNET_PQ_result_spec_absolute_time ("deadline", 77 &dc.deadline), 78 GNUNET_PQ_result_spec_auto_from_type ("wtid", 79 &dc.wtid), 80 GNUNET_PQ_result_spec_string ("account", 81 &dc.account.full_payto), 82 GNUNET_PQ_result_spec_bool ("suppressed", 83 &dc.suppressed), 84 GNUNET_PQ_result_spec_end 85 }; 86 enum GNUNET_GenericReturnValue rval; 87 88 if (GNUNET_OK != 89 GNUNET_PQ_extract_result (result, 90 rs, 91 i)) 92 { 93 GNUNET_break (0); 94 dcc->qs = GNUNET_DB_STATUS_HARD_ERROR; 95 return; 96 } 97 dcc->qs = i + 1; 98 rval = dcc->cb (dcc->cb_cls, 99 &dc); 100 GNUNET_PQ_cleanup_result (rs); 101 if (GNUNET_OK != rval) 102 break; 103 } 104 } 105 106 107 enum GNUNET_DB_QueryStatus 108 TAH_PG_get_auditor_closure_lags ( 109 void *cls, 110 int64_t limit, 111 uint64_t offset, 112 bool return_suppressed, 113 TALER_AUDITORDB_ClosureLagsCallback cb, 114 void *cb_cls) 115 { 116 struct PostgresClosure *pg = cls; 117 uint64_t plimit = (uint64_t) ((limit < 0) ? -limit : limit); 118 struct GNUNET_PQ_QueryParam params[] = { 119 GNUNET_PQ_query_param_uint64 (&offset), 120 GNUNET_PQ_query_param_bool (return_suppressed), 121 GNUNET_PQ_query_param_uint64 (&plimit), 122 GNUNET_PQ_query_param_end 123 }; 124 struct ClosureLagsContext dcc = { 125 .cb = cb, 126 .cb_cls = cb_cls, 127 .pg = pg 128 }; 129 enum GNUNET_DB_QueryStatus qs; 130 131 PREPARE (pg, 132 "auditor_closure_lags_get_desc", 133 "SELECT" 134 " row_id" 135 ",problem_row_id" 136 ",amount" 137 ",deadline" 138 ",wtid" 139 ",account" 140 ",suppressed" 141 " FROM auditor_closure_lags" 142 " WHERE (row_id < $1)" 143 " AND ($2 OR NOT suppressed)" 144 " ORDER BY row_id DESC" 145 " LIMIT $3" 146 ); 147 PREPARE (pg, 148 "auditor_closure_lags_get_asc", 149 "SELECT" 150 " row_id" 151 ",problem_row_id" 152 ",amount" 153 ",deadline" 154 ",wtid" 155 ",account" 156 ",suppressed" 157 " FROM auditor_closure_lags" 158 " WHERE (row_id > $1)" 159 " AND ($2 OR NOT suppressed)" 160 " ORDER BY row_id ASC" 161 " LIMIT $3" 162 ); 163 qs = GNUNET_PQ_eval_prepared_multi_select ( 164 pg->conn, 165 (limit > 0) 166 ? "auditor_closure_lags_get_asc" 167 : "auditor_closure_lags_get_desc", 168 params, 169 &closure_lags_cb, 170 &dcc); 171 if (qs > 0) 172 return dcc.qs; 173 GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs); 174 return qs; 175 }