exchange

Base system with REST service to issue digital coins, run by the payment service provider
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pg_get_reserve_info.c (3602B)

      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_get_reserve_info.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_get_reserve_info.h"
     26 #include "pg_helper.h"
     27 
     28 
     29 enum GNUNET_DB_QueryStatus
     30 TAH_PG_get_reserve_info (void *cls,
     31                          const struct TALER_ReservePublicKeyP *reserve_pub,
     32                          uint64_t *rowid,
     33                          struct TALER_AUDITORDB_ReserveFeeBalance *rfb,
     34                          struct GNUNET_TIME_Timestamp *expiration_date,
     35                          struct TALER_FullPayto *sender_account)
     36 {
     37   struct PostgresClosure *pg = cls;
     38   struct GNUNET_PQ_QueryParam params[] = {
     39     GNUNET_PQ_query_param_auto_from_type (reserve_pub),
     40     GNUNET_PQ_query_param_end
     41   };
     42   struct GNUNET_PQ_ResultSpec rs[] = {
     43     TALER_PQ_RESULT_SPEC_AMOUNT ("reserve_balance",
     44                                  &rfb->reserve_balance),
     45     TALER_PQ_RESULT_SPEC_AMOUNT ("reserve_loss",
     46                                  &rfb->reserve_loss),
     47     TALER_PQ_RESULT_SPEC_AMOUNT ("withdraw_fee_balance",
     48                                  &rfb->withdraw_fee_balance),
     49     TALER_PQ_RESULT_SPEC_AMOUNT ("close_fee_balance",
     50                                  &rfb->close_fee_balance),
     51     TALER_PQ_RESULT_SPEC_AMOUNT ("purse_fee_balance",
     52                                  &rfb->purse_fee_balance),
     53     TALER_PQ_RESULT_SPEC_AMOUNT ("open_fee_balance",
     54                                  &rfb->open_fee_balance),
     55     TALER_PQ_RESULT_SPEC_AMOUNT ("history_fee_balance",
     56                                  &rfb->history_fee_balance),
     57     GNUNET_PQ_result_spec_timestamp ("expiration_date",
     58                                      expiration_date),
     59     GNUNET_PQ_result_spec_uint64 ("auditor_reserves_rowid",
     60                                   rowid),
     61     GNUNET_PQ_result_spec_allow_null (
     62       GNUNET_PQ_result_spec_string ("origin_account",
     63                                     &sender_account->full_payto),
     64       NULL),
     65     GNUNET_PQ_result_spec_end
     66   };
     67 
     68   sender_account->full_payto = NULL;
     69   PREPARE (pg,
     70            "auditor_get_reserve_info",
     71            "SELECT"
     72            " reserve_balance"
     73            ",reserve_loss"
     74            ",withdraw_fee_balance"
     75            ",close_fee_balance"
     76            ",purse_fee_balance"
     77            ",open_fee_balance"
     78            ",history_fee_balance"
     79            ",expiration_date"
     80            ",auditor_reserves_rowid"
     81            ",origin_account"
     82            " FROM auditor_reserves"
     83            " WHERE reserve_pub=$1;");
     84   return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
     85                                                    "auditor_get_reserve_info",
     86                                                    params,
     87                                                    rs);
     88 }