get_denomination_pending.c (4923B)
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/get_denomination_pending.h" 19 20 21 struct DenominationPendingContext 22 { 23 24 /** 25 * Function to call for each bad sig loss. 26 */ 27 TALER_AUDITORDB_DenominationPendingCallback cb; 28 29 /** 30 * Closure for @e cb 31 */ 32 void *cb_cls; 33 34 /** 35 * Plugin context. 36 */ 37 struct TALER_AUDITORDB_PostgresContext *pg; 38 39 /** 40 * Query status to return. 41 */ 42 enum GNUNET_DB_QueryStatus qs; 43 }; 44 45 46 /** 47 * Helper function for #TALER_AUDITORDB_get_denomination_pending(). 48 * To be called with the results of a SELECT statement 49 * that has returned @a num_results results. 50 * 51 * @param cls closure of type `struct DenominationPendingContext *` 52 * @param result the postgres result 53 * @param num_results the number of results in @a result 54 */ 55 static void 56 denomination_pending_cb (void *cls, 57 PGresult *result, 58 unsigned int num_results) 59 { 60 struct DenominationPendingContext *dcc = cls; 61 struct TALER_AUDITORDB_PostgresContext *pg = dcc->pg; 62 63 for (unsigned int i = 0; i < num_results; i++) 64 { 65 uint64_t serial_id; 66 struct TALER_AUDITORDB_DenominationPending dc; 67 struct GNUNET_PQ_ResultSpec rs[] = { 68 GNUNET_PQ_result_spec_uint64 ("row_id", 69 &serial_id), 70 GNUNET_PQ_result_spec_auto_from_type ("denom_pub_hash", 71 &dc.denom_pub_hash), 72 TALER_PQ_RESULT_SPEC_AMOUNT ("denom_balance", 73 &dc.denom_balance), 74 TALER_PQ_RESULT_SPEC_AMOUNT ("denom_loss", 75 &dc.denom_loss), 76 GNUNET_PQ_result_spec_uint64 ("num_issued", 77 &dc.num_issued), 78 TALER_PQ_RESULT_SPEC_AMOUNT ("denom_risk", 79 &dc.denom_risk), 80 TALER_PQ_RESULT_SPEC_AMOUNT ("recoup_loss", 81 &dc.recoup_loss), 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 dcc->qs = i + 1; 96 rval = dcc->cb (dcc->cb_cls, 97 serial_id, 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_denomination_pending ( 108 struct TALER_AUDITORDB_PostgresContext *pg, 109 int64_t limit, 110 uint64_t offset, 111 TALER_AUDITORDB_DenominationPendingCallback 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_uint64 (&plimit), 118 GNUNET_PQ_query_param_end 119 }; 120 struct DenominationPendingContext dcc = { 121 .cb = cb, 122 .cb_cls = cb_cls, 123 .pg = pg 124 }; 125 enum GNUNET_DB_QueryStatus qs; 126 127 PREPARE (pg, 128 "auditor_denomination_pending_get_desc", 129 "SELECT" 130 " row_id," 131 " denom_pub_hash," 132 " denom_balance," 133 " denom_loss," 134 " num_issued," 135 " denom_risk," 136 " recoup_loss" 137 " FROM auditor_denomination_pending" 138 " WHERE (row_id < $1)" 139 " ORDER BY row_id DESC" 140 " LIMIT $2" 141 ); 142 PREPARE (pg, 143 "auditor_denomination_pending_get_asc", 144 "SELECT" 145 " row_id," 146 " denom_pub_hash," 147 " denom_balance," 148 " denom_loss," 149 " num_issued," 150 " denom_risk," 151 " recoup_loss" 152 " FROM auditor_denomination_pending" 153 " WHERE (row_id > $1)" 154 " ORDER BY row_id ASC" 155 " LIMIT $2" 156 ); 157 qs = GNUNET_PQ_eval_prepared_multi_select ( 158 pg->conn, 159 (limit > 0) 160 ? "auditor_denomination_pending_get_asc" 161 : "auditor_denomination_pending_get_desc", 162 params, 163 &denomination_pending_cb, 164 &dcc); 165 if (qs > 0) 166 return dcc.qs; 167 GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs); 168 return qs; 169 }