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 exchangedb/pg_get_global_fee.c
      18             :  * @brief Implementation of the get_global_fee 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_get_global_fee.h"
      26             : #include "pg_helper.h"
      27             : 
      28             : 
      29             : enum GNUNET_DB_QueryStatus
      30          19 : TEH_PG_get_global_fee (void *cls,
      31             :                        struct GNUNET_TIME_Timestamp date,
      32             :                        struct GNUNET_TIME_Timestamp *start_date,
      33             :                        struct GNUNET_TIME_Timestamp *end_date,
      34             :                        struct TALER_GlobalFeeSet *fees,
      35             :                        struct GNUNET_TIME_Relative *purse_timeout,
      36             :                        struct GNUNET_TIME_Relative *history_expiration,
      37             :                        uint32_t *purse_account_limit,
      38             :                        struct TALER_MasterSignatureP *master_sig)
      39             : {
      40          19 :   struct PostgresClosure *pg = cls;
      41          19 :   struct GNUNET_PQ_QueryParam params[] = {
      42          19 :     GNUNET_PQ_query_param_timestamp (&date),
      43             :     GNUNET_PQ_query_param_end
      44             :   };
      45          19 :   struct GNUNET_PQ_ResultSpec rs[] = {
      46          19 :     GNUNET_PQ_result_spec_timestamp ("start_date",
      47             :                                      start_date),
      48          19 :     GNUNET_PQ_result_spec_timestamp ("end_date",
      49             :                                      end_date),
      50          19 :     TALER_PQ_RESULT_SPEC_AMOUNT ("history_fee",
      51             :                                  &fees->history),
      52          19 :     TALER_PQ_RESULT_SPEC_AMOUNT ("account_fee",
      53             :                                  &fees->account),
      54          19 :     TALER_PQ_RESULT_SPEC_AMOUNT ("purse_fee",
      55             :                                  &fees->purse),
      56          19 :     GNUNET_PQ_result_spec_relative_time ("purse_timeout",
      57             :                                          purse_timeout),
      58          19 :     GNUNET_PQ_result_spec_relative_time ("history_expiration",
      59             :                                          history_expiration),
      60          19 :     GNUNET_PQ_result_spec_uint32 ("purse_account_limit",
      61             :                                   purse_account_limit),
      62          19 :     GNUNET_PQ_result_spec_auto_from_type ("master_sig",
      63             :                                           master_sig),
      64             :     GNUNET_PQ_result_spec_end
      65             :   };
      66             : 
      67          19 :   PREPARE (pg,
      68             :            "get_global_fee",
      69             :            "SELECT "
      70             :            " start_date"
      71             :            ",end_date"
      72             :            ",history_fee"
      73             :            ",account_fee"
      74             :            ",purse_fee"
      75             :            ",purse_timeout"
      76             :            ",history_expiration"
      77             :            ",purse_account_limit"
      78             :            ",master_sig"
      79             :            " FROM global_fee"
      80             :            " WHERE start_date <= $1"
      81             :            "   AND end_date > $1;");
      82          19 :   return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      83             :                                                    "get_global_fee",
      84             :                                                    params,
      85             :                                                    rs);
      86             : }