get_wire_fee_summary.c (1875B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2022 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 /** 17 * @file get_wire_fee_summary.c 18 * @brief Low-level (statement-level) Postgres database access for the exchange 19 * @author Christian Grothoff 20 */ 21 #include "taler/taler_pq_lib.h" 22 #include "auditor-database/get_wire_fee_summary.h" 23 #include "pg_helper.h" 24 25 26 /** 27 * Get summary information about an exchanges wire fee balance. 28 * 29 * @param pg the database context 30 * @param[out] wire_fee_balance set amount the exchange gained in wire fees 31 * @return transaction status code 32 */ 33 enum GNUNET_DB_QueryStatus 34 TALER_AUDITORDB_get_wire_fee_summary ( 35 struct TALER_AUDITORDB_PostgresContext *pg, 36 struct TALER_Amount *wire_fee_balance) 37 { 38 struct GNUNET_PQ_QueryParam params[] = { 39 GNUNET_PQ_query_param_end 40 }; 41 struct GNUNET_PQ_ResultSpec rs[] = { 42 TALER_PQ_RESULT_SPEC_AMOUNT ("wire_fee_balance", 43 wire_fee_balance), 44 GNUNET_PQ_result_spec_end 45 }; 46 47 PREPARE (pg, 48 "auditor_wire_fee_balance_select", 49 "SELECT" 50 " wire_fee_balance" 51 " FROM auditor_wire_fee_balance"); 52 return GNUNET_PQ_eval_prepared_singleton_select ( 53 pg->conn, 54 "auditor_wire_fee_balance_select", 55 params, 56 rs); 57 }