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             : }