Line data    Source code

       1              : /*
       2              :    This file is part of TALER
       3              :    Copyright (C) 2024 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_set_aml_lock.c
      18              :  * @brief Implementation of the set_aml_lock 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_set_aml_lock.h"
      26              : #include "pg_helper.h"
      27              : 
      28              : 
      29              : enum GNUNET_DB_QueryStatus
      30            0 : TEH_PG_set_aml_lock (
      31              :   void *cls,
      32              :   const struct TALER_NormalizedPaytoHashP *h_payto,
      33              :   struct GNUNET_TIME_Relative lock_duration,
      34              :   struct GNUNET_TIME_Absolute *existing_lock)
      35              : {
      36              : 
      37            0 :   struct PostgresClosure *pg = cls;
      38              :   struct GNUNET_TIME_Absolute expires
      39            0 :     = GNUNET_TIME_relative_to_absolute (lock_duration);
      40              :   struct GNUNET_TIME_Absolute now
      41            0 :     = GNUNET_TIME_absolute_get ();
      42            0 :   struct GNUNET_PQ_QueryParam params[] = {
      43            0 :     GNUNET_PQ_query_param_auto_from_type (h_payto),
      44            0 :     GNUNET_PQ_query_param_absolute_time (&now),
      45            0 :     GNUNET_PQ_query_param_absolute_time (&expires),
      46              :     GNUNET_PQ_query_param_end
      47              :   };
      48              :   bool nx; /* true if the *account* is not known */
      49            0 :   struct GNUNET_PQ_ResultSpec rs[] = {
      50            0 :     GNUNET_PQ_result_spec_allow_null (
      51              :       GNUNET_PQ_result_spec_absolute_time ("out_aml_program_lock_timeout",
      52              :                                            existing_lock),
      53              :       &nx),
      54              :     GNUNET_PQ_result_spec_end
      55              :   };
      56              :   enum GNUNET_DB_QueryStatus qs;
      57              : 
      58            0 :   PREPARE (pg,
      59              :            "set_aml_lock",
      60              :            "SELECT out_aml_program_lock_timeout"
      61              :            "  FROM exchange_do_set_aml_lock($1,$2,$3);");
      62            0 :   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      63              :                                                  "set_aml_lock",
      64              :                                                  params,
      65              :                                                  rs);
      66            0 :   if (qs <= 0)
      67            0 :     return qs;
      68            0 :   if (nx)
      69              :   {
      70            0 :     *existing_lock = GNUNET_TIME_UNIT_ZERO_ABS;
      71            0 :     return GNUNET_DB_STATUS_SUCCESS_NO_RESULTS;
      72              :   }
      73            0 :   return qs;
      74              : }