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             : }