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 exchangedb/do_expire_purse.c
      18              :  * @brief Implementation of the do_expire_purse function for Postgres
      19              :  * @author Christian Grothoff
      20              :  */
      21              : #include "taler/taler_pq_lib.h"
      22              : #include "exchange-database/do_expire_purse.h"
      23              : #include "helper.h"
      24              : 
      25              : 
      26              : enum GNUNET_DB_QueryStatus
      27           14 : TALER_EXCHANGEDB_do_expire_purse (
      28              :   struct TALER_EXCHANGEDB_PostgresContext *pg,
      29              :   struct GNUNET_TIME_Absolute start_time,
      30              :   struct GNUNET_TIME_Absolute end_time,
      31              :   struct GNUNET_TIME_Absolute *purse_expiration)
      32              : {
      33           14 :   struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get ();
      34           14 :   struct GNUNET_PQ_QueryParam params[] = {
      35           14 :     GNUNET_PQ_query_param_absolute_time (&start_time),
      36           14 :     GNUNET_PQ_query_param_absolute_time (&end_time),
      37           14 :     GNUNET_PQ_query_param_absolute_time (&now),
      38              :     GNUNET_PQ_query_param_end
      39              :   };
      40           14 :   bool found = false;
      41           14 :   bool no_purse = false;
      42           14 :   struct GNUNET_PQ_ResultSpec rs[] = {
      43           14 :     GNUNET_PQ_result_spec_bool ("found",
      44              :                                 &found),
      45           14 :     GNUNET_PQ_result_spec_allow_null (
      46              :       GNUNET_PQ_result_spec_absolute_time ("purse_expiration",
      47              :                                            purse_expiration),
      48              :       &no_purse),
      49              :     GNUNET_PQ_result_spec_end
      50              :   };
      51              :   enum GNUNET_DB_QueryStatus qs;
      52              : 
      53              : 
      54           14 :   PREPARE (pg,
      55              :            "do_expire_purse",
      56              :            "SELECT "
      57              :            " out_found AS found"
      58              :            ",out_purse_expiration AS purse_expiration"
      59              :            " FROM exchange_do_expire_purse"
      60              :            " ($1,$2,$3);");
      61              : 
      62           14 :   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      63              :                                                  "do_expire_purse",
      64              :                                                  params,
      65              :                                                  rs);
      66           14 :   if (qs < 0)
      67            0 :     return qs;
      68           14 :   GNUNET_assert (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT == qs);
      69           14 :   if (no_purse)
      70            7 :     *purse_expiration = end_time;
      71              :   return found
      72              :          ? GNUNET_DB_STATUS_SUCCESS_ONE_RESULT
      73           14 :          : GNUNET_DB_STATUS_SUCCESS_NO_RESULTS;
      74              : }