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 pg_do_reserve_open.c
      18             :  * @brief Low-level (statement-level) Postgres database access for the exchange
      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_do_reserve_open.h"
      26             : #include "pg_helper.h"
      27             : 
      28             : 
      29             : enum GNUNET_DB_QueryStatus
      30           6 : TEH_PG_do_reserve_open (
      31             :   void *cls,
      32             :   const struct TALER_ReservePublicKeyP *reserve_pub,
      33             :   const struct TALER_Amount *total_paid,
      34             :   const struct TALER_Amount *reserve_payment,
      35             :   uint32_t min_purse_limit,
      36             :   const struct TALER_ReserveSignatureP *reserve_sig,
      37             :   struct GNUNET_TIME_Timestamp desired_expiration,
      38             :   struct GNUNET_TIME_Timestamp now,
      39             :   const struct TALER_Amount *open_fee,
      40             :   bool *no_funds,
      41             :   struct TALER_Amount *reserve_balance,
      42             :   struct TALER_Amount *open_cost,
      43             :   struct GNUNET_TIME_Timestamp *final_expiration)
      44             : {
      45           6 :   struct PostgresClosure *pg = cls;
      46           6 :   struct GNUNET_PQ_QueryParam params[] = {
      47           6 :     GNUNET_PQ_query_param_auto_from_type (reserve_pub),
      48           6 :     TALER_PQ_query_param_amount (
      49           6 :       pg->conn,
      50             :       total_paid),
      51           6 :     TALER_PQ_query_param_amount (
      52           6 :       pg->conn,
      53             :       reserve_payment),
      54           6 :     GNUNET_PQ_query_param_uint32 (&min_purse_limit),
      55           6 :     GNUNET_PQ_query_param_uint32 (&pg->def_purse_limit),
      56           6 :     GNUNET_PQ_query_param_auto_from_type (reserve_sig),
      57           6 :     GNUNET_PQ_query_param_timestamp (&desired_expiration),
      58           6 :     GNUNET_PQ_query_param_relative_time (&pg->legal_reserve_expiration_time),
      59           6 :     GNUNET_PQ_query_param_timestamp (&now),
      60           6 :     TALER_PQ_query_param_amount (pg->conn,
      61             :                                  open_fee),
      62             :     GNUNET_PQ_query_param_end
      63             :   };
      64           6 :   bool no_reserve = true;
      65           6 :   struct GNUNET_PQ_ResultSpec rs[] = {
      66           6 :     TALER_PQ_result_spec_amount ("out_open_cost",
      67           6 :                                  pg->currency,
      68             :                                  open_cost),
      69           6 :     TALER_PQ_result_spec_amount ("out_reserve_balance",
      70           6 :                                  pg->currency,
      71             :                                  reserve_balance),
      72           6 :     GNUNET_PQ_result_spec_timestamp ("out_final_expiration",
      73             :                                      final_expiration),
      74           6 :     GNUNET_PQ_result_spec_bool ("out_no_reserve",
      75             :                                 &no_reserve),
      76           6 :     GNUNET_PQ_result_spec_bool ("out_no_funds",
      77             :                                 no_funds),
      78             :     GNUNET_PQ_result_spec_end
      79             :   };
      80             :   enum GNUNET_DB_QueryStatus qs;
      81             : 
      82           6 :   PREPARE (pg,
      83             :            "do_reserve_open",
      84             :            "SELECT "
      85             :            " out_open_cost"
      86             :            ",out_final_expiration"
      87             :            ",out_no_funds"
      88             :            ",out_no_reserve"
      89             :            ",out_reserve_balance"
      90             :            " FROM exchange_do_reserve_open"
      91             :            " ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10);");
      92           6 :   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      93             :                                                  "do_reserve_open",
      94             :                                                  params,
      95             :                                                  rs);
      96           6 :   if (qs <= 0)
      97           0 :     return qs;
      98           6 :   if (no_reserve)
      99           0 :     return GNUNET_DB_STATUS_SUCCESS_NO_RESULTS;
     100           6 :   return qs;
     101             : }