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 src/backenddb/do_expire_locks.c
      18              :  * @brief Implementation of the do_expire_locks function for Postgres
      19              :  * @author Iván Ávalos
      20              :  */
      21              : #include "platform.h"
      22              : #include <taler/taler_pq_lib.h>
      23              : #include "merchant-database/do_expire_locks.h"
      24              : #include "helper.h"
      25              : 
      26              : 
      27              : enum GNUNET_DB_QueryStatus
      28          135 : TALER_MERCHANTDB_do_expire_locks (struct TALER_MERCHANTDB_PostgresContext *pg)
      29              : {
      30          135 :   struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get ();
      31          135 :   struct GNUNET_PQ_QueryParam params[] = {
      32          135 :     GNUNET_PQ_query_param_absolute_time (&now),
      33              :     GNUNET_PQ_query_param_end
      34              :   };
      35              :   uint64_t total;
      36          135 :   struct GNUNET_PQ_ResultSpec rs[] = {
      37          135 :     GNUNET_PQ_result_spec_uint64 ("do_expire_locks",
      38              :                                   &total),
      39              :     GNUNET_PQ_result_spec_end
      40              :   };
      41              :   enum GNUNET_DB_QueryStatus qs;
      42              : 
      43          135 :   PREPARE (pg,
      44              :            "do_expire_locks",
      45              :            "SELECT expire_locks($1) "
      46              :            "  AS do_expire_locks");
      47          135 :   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      48              :                                                  "do_expire_locks",
      49              :                                                  params,
      50              :                                                  rs);
      51          135 :   if (qs < 0)
      52              :   {
      53            0 :     GNUNET_break (0);
      54            0 :     return qs;
      55              :   }
      56          135 :   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
      57              :               "Released %llu locks for the current instance\n",
      58              :               (unsigned long long) total);
      59          135 :   return (enum GNUNET_DB_QueryStatus) total;
      60              : }