merchant

Merchant backend to process payments, run by merchants
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pg_gc.c (2258B)

      1 /*
      2    This file is part of TALER
      3    Copyright (C) 2025 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 backenddb/pg_gc.c
     18  * @brief Implementation of the gc function for Postgres
     19  * @author Christian Grothoff
     20  */
     21 #include "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_gc.h"
     26 #include "pg_helper.h"
     27 
     28 
     29 enum GNUNET_GenericReturnValue
     30 TMH_PG_gc (void *cls)
     31 {
     32   struct PostgresClosure *pg = cls;
     33   struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get ();
     34   struct GNUNET_PQ_QueryParam params[] = {
     35     GNUNET_PQ_query_param_absolute_time (&now),
     36     GNUNET_PQ_query_param_end
     37   };
     38   struct GNUNET_PQ_Context *conn;
     39   enum GNUNET_GenericReturnValue ret;
     40 
     41   {
     42     struct GNUNET_PQ_ExecuteStatement es[] = {
     43       GNUNET_PQ_make_try_execute ("SET search_path TO merchant;"),
     44       GNUNET_PQ_EXECUTE_STATEMENT_END
     45     };
     46     struct GNUNET_PQ_PreparedStatement ps[] = {
     47       GNUNET_PQ_make_prepare ("run_gc",
     48                               "CALL merchant_do_gc ($1);"),
     49       GNUNET_PQ_PREPARED_STATEMENT_END
     50     };
     51 
     52     conn = GNUNET_PQ_connect_with_cfg (pg->cfg,
     53                                        "merchantdb-postgres",
     54                                        NULL,
     55                                        es,
     56                                        ps);
     57   }
     58   if (NULL == conn)
     59     return GNUNET_SYSERR;
     60 
     61   if (0 > GNUNET_PQ_eval_prepared_non_select (conn,
     62                                               "run_gc",
     63                                               params))
     64     ret = GNUNET_SYSERR;
     65   else
     66     ret = GNUNET_OK;
     67   GNUNET_PQ_disconnect (conn);
     68   return ret;
     69 }