exchange

Base system with REST service to issue digital coins, run by the payment service provider
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pg_expire_purse.c (2336B)

      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/pg_expire_purse.c
     18  * @brief Implementation of the expire_purse function for Postgres
     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_expire_purse.h"
     26 #include "pg_helper.h"
     27 
     28 
     29 enum GNUNET_DB_QueryStatus
     30 TEH_PG_expire_purse (
     31   void *cls,
     32   struct GNUNET_TIME_Absolute start_time,
     33   struct GNUNET_TIME_Absolute end_time)
     34 {
     35   struct PostgresClosure *pg = cls;
     36   struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get ();
     37   struct GNUNET_PQ_QueryParam params[] = {
     38     GNUNET_PQ_query_param_absolute_time (&start_time),
     39     GNUNET_PQ_query_param_absolute_time (&end_time),
     40     GNUNET_PQ_query_param_absolute_time (&now),
     41     GNUNET_PQ_query_param_end
     42   };
     43   bool found = false;
     44   struct GNUNET_PQ_ResultSpec rs[] = {
     45     GNUNET_PQ_result_spec_bool ("found",
     46                                 &found),
     47     GNUNET_PQ_result_spec_end
     48   };
     49   enum GNUNET_DB_QueryStatus qs;
     50 
     51 
     52   PREPARE (pg,
     53            "call_expire_purse",
     54            "SELECT "
     55            " out_found AS found"
     56            " FROM exchange_do_expire_purse"
     57            " ($1,$2,$3);");
     58 
     59   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
     60                                                  "call_expire_purse",
     61                                                  params,
     62                                                  rs);
     63   if (qs < 0)
     64     return qs;
     65   GNUNET_assert (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT == qs);
     66   return found
     67          ? GNUNET_DB_STATUS_SUCCESS_ONE_RESULT
     68          : GNUNET_DB_STATUS_SUCCESS_NO_RESULTS;
     69 }