do_reserve_open.c (3651B)
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 do_reserve_open.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 "exchange-database/do_reserve_open.h" 23 #include "helper.h" 24 25 26 enum GNUNET_DB_QueryStatus 27 TALER_EXCHANGEDB_do_reserve_open ( 28 struct TALER_EXCHANGEDB_PostgresContext *pg, 29 const struct TALER_ReservePublicKeyP *reserve_pub, 30 const struct TALER_Amount *total_paid, 31 const struct TALER_Amount *reserve_payment, 32 uint32_t min_purse_limit, 33 const struct TALER_ReserveSignatureP *reserve_sig, 34 struct GNUNET_TIME_Timestamp desired_expiration, 35 struct GNUNET_TIME_Timestamp now, 36 const struct TALER_Amount *open_fee, 37 bool *no_funds, 38 struct TALER_Amount *reserve_balance, 39 struct TALER_Amount *open_cost, 40 struct GNUNET_TIME_Timestamp *final_expiration) 41 { 42 struct GNUNET_PQ_QueryParam params[] = { 43 GNUNET_PQ_query_param_auto_from_type (reserve_pub), 44 TALER_PQ_query_param_amount ( 45 pg->conn, 46 total_paid), 47 TALER_PQ_query_param_amount ( 48 pg->conn, 49 reserve_payment), 50 GNUNET_PQ_query_param_uint32 (&min_purse_limit), 51 GNUNET_PQ_query_param_uint32 (&pg->def_purse_limit), 52 GNUNET_PQ_query_param_auto_from_type (reserve_sig), 53 GNUNET_PQ_query_param_timestamp (&desired_expiration), 54 GNUNET_PQ_query_param_relative_time (&pg->legal_reserve_expiration_time), 55 GNUNET_PQ_query_param_timestamp (&now), 56 TALER_PQ_query_param_amount (pg->conn, 57 open_fee), 58 GNUNET_PQ_query_param_end 59 }; 60 bool no_reserve = true; 61 struct GNUNET_PQ_ResultSpec rs[] = { 62 TALER_PQ_result_spec_amount ("out_open_cost", 63 pg->currency, 64 open_cost), 65 TALER_PQ_result_spec_amount ("out_reserve_balance", 66 pg->currency, 67 reserve_balance), 68 GNUNET_PQ_result_spec_timestamp ("out_final_expiration", 69 final_expiration), 70 GNUNET_PQ_result_spec_bool ("out_no_reserve", 71 &no_reserve), 72 GNUNET_PQ_result_spec_bool ("out_no_funds", 73 no_funds), 74 GNUNET_PQ_result_spec_end 75 }; 76 enum GNUNET_DB_QueryStatus qs; 77 78 PREPARE (pg, 79 "do_reserve_open", 80 "SELECT " 81 " out_open_cost" 82 ",out_final_expiration" 83 ",out_no_funds" 84 ",out_no_reserve" 85 ",out_reserve_balance" 86 " FROM exchange_do_reserve_open" 87 " ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10);"); 88 qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn, 89 "do_reserve_open", 90 params, 91 rs); 92 if (qs <= 0) 93 return qs; 94 if (no_reserve) 95 return GNUNET_DB_STATUS_SUCCESS_NO_RESULTS; 96 return qs; 97 }