get_denominations_without_sigs.c (4995B)
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/get_denominations_without_sigs.h" 20 21 22 struct DenominationsWithoutSigsContext 23 { 24 25 /** 26 * Function to call for each bad sig loss. 27 */ 28 TALER_AUDITORDB_DenominationsWithoutSigsCallback cb; 29 30 /** 31 * Closure for @e cb 32 */ 33 void *cb_cls; 34 35 /** 36 * Plugin context. 37 */ 38 struct TALER_AUDITORDB_PostgresContext *pg; 39 40 /** 41 * Query status to return. 42 */ 43 enum GNUNET_DB_QueryStatus qs; 44 }; 45 46 47 /** 48 * Helper function for #TALER_AUDITORDB_get_denominations_without_sigs(). 49 * To be called with the results of a SELECT statement 50 * that has returned @a num_results results. 51 * 52 * @param cls closure of type `struct DenominationsWithoutSigsContext *` 53 * @param result the postgres result 54 * @param num_results the number of results in @a result 55 */ 56 static void 57 denominations_without_sigs_cb (void *cls, 58 PGresult *result, 59 unsigned int num_results) 60 { 61 struct DenominationsWithoutSigsContext *dcc = cls; 62 struct TALER_AUDITORDB_PostgresContext *pg = dcc->pg; 63 64 for (unsigned int i = 0; i < num_results; i++) 65 { 66 struct TALER_AUDITORDB_DenominationsWithoutSigs dc; 67 struct GNUNET_PQ_ResultSpec rs[] = { 68 GNUNET_PQ_result_spec_uint64 ("row_id", 69 &dc.row_id), 70 GNUNET_PQ_result_spec_auto_from_type ("denompub_h", 71 &dc.denompub_h), 72 TALER_PQ_RESULT_SPEC_AMOUNT ("value", 73 &dc.value), 74 GNUNET_PQ_result_spec_absolute_time ("start_time", 75 &dc.start_time), 76 GNUNET_PQ_result_spec_absolute_time ("end_time", 77 &dc.end_time), 78 GNUNET_PQ_result_spec_bool ("suppressed", 79 &dc.suppressed), 80 GNUNET_PQ_result_spec_end 81 }; 82 enum GNUNET_GenericReturnValue rval; 83 84 if (GNUNET_OK != 85 GNUNET_PQ_extract_result (result, 86 rs, 87 i)) 88 { 89 GNUNET_break (0); 90 dcc->qs = GNUNET_DB_STATUS_HARD_ERROR; 91 return; 92 } 93 94 dcc->qs = i + 1; 95 96 rval = dcc->cb (dcc->cb_cls, 97 &dc); 98 GNUNET_PQ_cleanup_result (rs); 99 if (GNUNET_OK != rval) 100 break; 101 } 102 } 103 104 105 enum GNUNET_DB_QueryStatus 106 TALER_AUDITORDB_get_denominations_without_sigs ( 107 struct TALER_AUDITORDB_PostgresContext *pg, 108 int64_t limit, 109 uint64_t offset, 110 bool return_suppressed, 111 TALER_AUDITORDB_DenominationsWithoutSigsCallback cb, 112 void *cb_cls) 113 { 114 uint64_t plimit = (uint64_t) ((limit < 0) ? -limit : limit); 115 struct GNUNET_PQ_QueryParam params[] = { 116 GNUNET_PQ_query_param_uint64 (&offset), 117 GNUNET_PQ_query_param_bool (return_suppressed), 118 GNUNET_PQ_query_param_uint64 (&plimit), 119 GNUNET_PQ_query_param_end 120 }; 121 struct DenominationsWithoutSigsContext dcc = { 122 .cb = cb, 123 .cb_cls = cb_cls, 124 .pg = pg 125 }; 126 enum GNUNET_DB_QueryStatus qs; 127 128 PREPARE (pg, 129 "auditor_denominations_without_sigs_get_desc", 130 "SELECT" 131 " row_id," 132 " denompub_h," 133 " value," 134 " start_time," 135 " end_time," 136 " suppressed" 137 " FROM auditor_denominations_without_sigs" 138 " WHERE (row_id < $1)" 139 " AND ($2 OR NOT suppressed)" 140 " ORDER BY row_id DESC" 141 " LIMIT $3" 142 ); 143 PREPARE (pg, 144 "auditor_denominations_without_sigs_get_asc", 145 "SELECT" 146 " row_id," 147 " denompub_h," 148 " value," 149 " start_time," 150 " end_time," 151 " suppressed" 152 " FROM auditor_denominations_without_sigs" 153 " WHERE (row_id > $1)" 154 " AND ($2 OR NOT suppressed)" 155 " ORDER BY row_id ASC" 156 " LIMIT $3" 157 ); 158 qs = GNUNET_PQ_eval_prepared_multi_select ( 159 pg->conn, 160 (limit > 0) 161 ? "auditor_denominations_without_sigs_get_asc" 162 : "auditor_denominations_without_sigs_get_desc", 163 params, 164 &denominations_without_sigs_cb, 165 &dcc); 166 if (qs > 0) 167 return dcc.qs; 168 GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs); 169 return qs; 170 }