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_do_melt.c
      18             :  * @brief Implementation of the do_melt function for Postgres
      19             :  * @author Christian Grothoff
      20             :  */
      21             : #include "platform.h"
      22             : #include "taler_error_codes.h"
      23             : #include "taler_dbevents.h"
      24             : #include "taler_pq_lib.h"
      25             : #include "pg_do_melt.h"
      26             : #include "pg_helper.h"
      27             : 
      28             : 
      29             : enum GNUNET_DB_QueryStatus
      30           0 : TEH_PG_do_melt (
      31             :   void *cls,
      32             :   const struct TALER_RefreshMasterSecretP *rms,
      33             :   struct TALER_EXCHANGEDB_Refresh *refresh,
      34             :   uint64_t known_coin_id,
      35             :   bool *zombie_required,
      36             :   bool *balance_ok)
      37             : {
      38           0 :   struct PostgresClosure *pg = cls;
      39           0 :   struct GNUNET_PQ_QueryParam params[] = {
      40             :     NULL == rms
      41           0 :     ? GNUNET_PQ_query_param_null ()
      42           0 :     : GNUNET_PQ_query_param_auto_from_type (rms),
      43           0 :     TALER_PQ_query_param_amount (pg->conn,
      44           0 :                                  &refresh->amount_with_fee),
      45           0 :     GNUNET_PQ_query_param_auto_from_type (&refresh->rc),
      46           0 :     GNUNET_PQ_query_param_auto_from_type (&refresh->coin.coin_pub),
      47           0 :     GNUNET_PQ_query_param_auto_from_type (&refresh->coin_sig),
      48           0 :     GNUNET_PQ_query_param_uint64 (&known_coin_id),
      49           0 :     GNUNET_PQ_query_param_uint32 (&refresh->noreveal_index),
      50           0 :     GNUNET_PQ_query_param_bool (*zombie_required),
      51             :     GNUNET_PQ_query_param_end
      52             :   };
      53             :   bool is_null;
      54           0 :   struct GNUNET_PQ_ResultSpec rs[] = {
      55           0 :     GNUNET_PQ_result_spec_bool ("balance_ok",
      56             :                                 balance_ok),
      57           0 :     GNUNET_PQ_result_spec_bool ("zombie_required",
      58             :                                 zombie_required),
      59           0 :     GNUNET_PQ_result_spec_allow_null (
      60             :       GNUNET_PQ_result_spec_uint32 ("noreveal_index",
      61             :                                     &refresh->noreveal_index),
      62             :       &is_null),
      63             :     GNUNET_PQ_result_spec_end
      64             :   };
      65             :   enum GNUNET_DB_QueryStatus qs;
      66             : 
      67           0 :   PREPARE (pg,
      68             :            "call_melt",
      69             :            "SELECT "
      70             :            " out_balance_ok AS balance_ok"
      71             :            ",out_zombie_bad AS zombie_required"
      72             :            ",out_noreveal_index AS noreveal_index"
      73             :            " FROM exchange_do_melt"
      74             :            " ($1,$2,$3,$4,$5,$6,$7,$8);");
      75           0 :   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      76             :                                                  "call_melt",
      77             :                                                  params,
      78             :                                                  rs);
      79           0 :   if (is_null)
      80           0 :     refresh->noreveal_index = UINT32_MAX; /* set to very invalid value */
      81           0 :   return qs;
      82             : }