pg_get_denominations_without_sigs.c (4996B)
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_denominations_without_sigs.h" 22 23 24 struct DenominationsWithoutSigsContext 25 { 26 27 /** 28 * Function to call for each bad sig loss. 29 */ 30 TALER_AUDITORDB_DenominationsWithoutSigsCallback 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_denominations_without_sigs(). 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 DenominationsWithoutSigsContext *` 55 * @param result the postgres result 56 * @param num_results the number of results in @a result 57 */ 58 static void 59 denominations_without_sigs_cb (void *cls, 60 PGresult *result, 61 unsigned int num_results) 62 { 63 struct DenominationsWithoutSigsContext *dcc = cls; 64 struct PostgresClosure *pg = dcc->pg; 65 66 for (unsigned int i = 0; i < num_results; i++) 67 { 68 struct TALER_AUDITORDB_DenominationsWithoutSigs dc; 69 struct GNUNET_PQ_ResultSpec rs[] = { 70 GNUNET_PQ_result_spec_uint64 ("row_id", 71 &dc.row_id), 72 GNUNET_PQ_result_spec_auto_from_type ("denompub_h", 73 &dc.denompub_h), 74 TALER_PQ_RESULT_SPEC_AMOUNT ("value", 75 &dc.value), 76 GNUNET_PQ_result_spec_absolute_time ("start_time", 77 &dc.start_time), 78 GNUNET_PQ_result_spec_absolute_time ("end_time", 79 &dc.end_time), 80 GNUNET_PQ_result_spec_bool ("suppressed", 81 &dc.suppressed), 82 GNUNET_PQ_result_spec_end 83 }; 84 enum GNUNET_GenericReturnValue rval; 85 86 if (GNUNET_OK != 87 GNUNET_PQ_extract_result (result, 88 rs, 89 i)) 90 { 91 GNUNET_break (0); 92 dcc->qs = GNUNET_DB_STATUS_HARD_ERROR; 93 return; 94 } 95 96 dcc->qs = i + 1; 97 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_denominations_without_sigs ( 109 void *cls, 110 int64_t limit, 111 uint64_t offset, 112 bool return_suppressed, 113 TALER_AUDITORDB_DenominationsWithoutSigsCallback 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 DenominationsWithoutSigsContext 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_denominations_without_sigs_get_desc", 133 "SELECT" 134 " row_id," 135 " denompub_h," 136 " value," 137 " start_time," 138 " end_time," 139 " suppressed" 140 " FROM auditor_denominations_without_sigs" 141 " WHERE (row_id < $1)" 142 " AND ($2 OR NOT suppressed)" 143 " ORDER BY row_id DESC" 144 " LIMIT $3" 145 ); 146 PREPARE (pg, 147 "auditor_denominations_without_sigs_get_asc", 148 "SELECT" 149 " row_id," 150 " denompub_h," 151 " value," 152 " start_time," 153 " end_time," 154 " suppressed" 155 " FROM auditor_denominations_without_sigs" 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_denominations_without_sigs_get_asc" 165 : "auditor_denominations_without_sigs_get_desc", 166 params, 167 &denominations_without_sigs_cb, 168 &dcc); 169 if (qs > 0) 170 return dcc.qs; 171 GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs); 172 return qs; 173 }