Line data    Source code

       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_wire_fee_summary.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_wire_fee_summary.h"
      26              : #include "pg_helper.h"
      27              : 
      28              : 
      29              : /**
      30              :  * Get summary information about an exchanges wire fee balance.
      31              :  *
      32              :  * @param cls the @e cls of this struct with the plugin-specific state
      33              :  * @param[out] wire_fee_balance set amount the exchange gained in wire fees
      34              :  * @return transaction status code
      35              :  */
      36              : enum GNUNET_DB_QueryStatus
      37            0 : TAH_PG_get_wire_fee_summary (void *cls,
      38              :                              struct TALER_Amount *wire_fee_balance)
      39              : {
      40            0 :   struct PostgresClosure *pg = cls;
      41            0 :   struct GNUNET_PQ_QueryParam params[] = {
      42              :     GNUNET_PQ_query_param_end
      43              :   };
      44            0 :   struct GNUNET_PQ_ResultSpec rs[] = {
      45            0 :     TALER_PQ_RESULT_SPEC_AMOUNT ("wire_fee_balance",
      46              :                                  wire_fee_balance),
      47              :     GNUNET_PQ_result_spec_end
      48              :   };
      49              : 
      50            0 :   PREPARE (pg,
      51              :            "auditor_wire_fee_balance_select",
      52              :            "SELECT"
      53              :            " wire_fee_balance"
      54              :            " FROM auditor_wire_fee_balance");
      55            0 :   return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      56              :                                                    "auditor_wire_fee_balance_select",
      57              :                                                    params,
      58              :                                                    rs);
      59              : }