pg_do_reserve_open.c (3733B)
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 pg_do_reserve_open.c 18 * @brief Low-level (statement-level) Postgres database access for the exchange 19 * @author Christian Grothoff 20 */ 21 #include "taler/platform.h" 22 #include "taler/taler_error_codes.h" 23 #include "taler/taler_dbevents.h" 24 #include "taler/taler_pq_lib.h" 25 #include "pg_do_reserve_open.h" 26 #include "pg_helper.h" 27 28 29 enum GNUNET_DB_QueryStatus 30 TEH_PG_do_reserve_open ( 31 void *cls, 32 const struct TALER_ReservePublicKeyP *reserve_pub, 33 const struct TALER_Amount *total_paid, 34 const struct TALER_Amount *reserve_payment, 35 uint32_t min_purse_limit, 36 const struct TALER_ReserveSignatureP *reserve_sig, 37 struct GNUNET_TIME_Timestamp desired_expiration, 38 struct GNUNET_TIME_Timestamp now, 39 const struct TALER_Amount *open_fee, 40 bool *no_funds, 41 struct TALER_Amount *reserve_balance, 42 struct TALER_Amount *open_cost, 43 struct GNUNET_TIME_Timestamp *final_expiration) 44 { 45 struct PostgresClosure *pg = cls; 46 struct GNUNET_PQ_QueryParam params[] = { 47 GNUNET_PQ_query_param_auto_from_type (reserve_pub), 48 TALER_PQ_query_param_amount ( 49 pg->conn, 50 total_paid), 51 TALER_PQ_query_param_amount ( 52 pg->conn, 53 reserve_payment), 54 GNUNET_PQ_query_param_uint32 (&min_purse_limit), 55 GNUNET_PQ_query_param_uint32 (&pg->def_purse_limit), 56 GNUNET_PQ_query_param_auto_from_type (reserve_sig), 57 GNUNET_PQ_query_param_timestamp (&desired_expiration), 58 GNUNET_PQ_query_param_relative_time (&pg->legal_reserve_expiration_time), 59 GNUNET_PQ_query_param_timestamp (&now), 60 TALER_PQ_query_param_amount (pg->conn, 61 open_fee), 62 GNUNET_PQ_query_param_end 63 }; 64 bool no_reserve = true; 65 struct GNUNET_PQ_ResultSpec rs[] = { 66 TALER_PQ_result_spec_amount ("out_open_cost", 67 pg->currency, 68 open_cost), 69 TALER_PQ_result_spec_amount ("out_reserve_balance", 70 pg->currency, 71 reserve_balance), 72 GNUNET_PQ_result_spec_timestamp ("out_final_expiration", 73 final_expiration), 74 GNUNET_PQ_result_spec_bool ("out_no_reserve", 75 &no_reserve), 76 GNUNET_PQ_result_spec_bool ("out_no_funds", 77 no_funds), 78 GNUNET_PQ_result_spec_end 79 }; 80 enum GNUNET_DB_QueryStatus qs; 81 82 PREPARE (pg, 83 "do_reserve_open", 84 "SELECT " 85 " out_open_cost" 86 ",out_final_expiration" 87 ",out_no_funds" 88 ",out_no_reserve" 89 ",out_reserve_balance" 90 " FROM exchange_do_reserve_open" 91 " ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10);"); 92 qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn, 93 "do_reserve_open", 94 params, 95 rs); 96 if (qs <= 0) 97 return qs; 98 if (no_reserve) 99 return GNUNET_DB_STATUS_SUCCESS_NO_RESULTS; 100 return qs; 101 }