exchange

Base system with REST service to issue digital coins, run by the payment service provider
Log | Files | Refs | Submodules | README | LICENSE

reserves_get.c (2205B)

      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 exchangedb/reserves_get.c
     18  * @brief Implementation of the reserves_get function for Postgres
     19  * @author Christian Grothoff
     20  */
     21 #include "taler/taler_pq_lib.h"
     22 #include "exchange-database/reserves_get.h"
     23 #include "helper.h"
     24 
     25 enum GNUNET_DB_QueryStatus
     26 TALER_EXCHANGEDB_reserves_get (struct TALER_EXCHANGEDB_PostgresContext *pg,
     27                                struct TALER_EXCHANGEDB_Reserve *reserve)
     28 {
     29   struct GNUNET_PQ_QueryParam params[] = {
     30     GNUNET_PQ_query_param_auto_from_type (&reserve->pub),
     31     GNUNET_PQ_query_param_end
     32   };
     33   struct GNUNET_PQ_ResultSpec rs[] = {
     34     TALER_PQ_result_spec_amount ("current_balance",
     35                                  pg->currency,
     36                                  &reserve->balance),
     37     GNUNET_PQ_result_spec_timestamp ("expiration_date",
     38                                      &reserve->expiry),
     39     GNUNET_PQ_result_spec_timestamp ("gc_date",
     40                                      &reserve->gc),
     41     GNUNET_PQ_result_spec_end
     42   };
     43   /* Used in #postgres_reserves_get() */
     44   PREPARE (pg,
     45            "reserves_get",
     46            "SELECT"
     47            " current_balance"
     48            ",expiration_date"
     49            ",gc_date"
     50            " FROM reserves"
     51            " WHERE reserve_pub=$1"
     52            " LIMIT 1;");
     53   return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
     54                                                    "reserves_get",
     55                                                    params,
     56                                                    rs);
     57 }