exchange

Base system with REST service to issue digital coins, run by the payment service provider
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get_denomination_revocation.c (2269B)

      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/get_denomination_revocation.c
     18  * @brief Implementation of the get_denomination_revocation function for Postgres
     19  * @author Christian Grothoff
     20  */
     21 #include "taler/taler_pq_lib.h"
     22 #include "exchange-database/get_denomination_revocation.h"
     23 #include "helper.h"
     24 
     25 enum GNUNET_DB_QueryStatus
     26 TALER_EXCHANGEDB_get_denomination_revocation (
     27   struct TALER_EXCHANGEDB_PostgresContext *pg,
     28   const struct TALER_DenominationHashP *denom_pub_hash,
     29   struct TALER_MasterSignatureP *master_sig,
     30   uint64_t *rowid)
     31 {
     32   struct GNUNET_PQ_QueryParam params[] = {
     33     GNUNET_PQ_query_param_auto_from_type (denom_pub_hash),
     34     GNUNET_PQ_query_param_end
     35   };
     36   struct GNUNET_PQ_ResultSpec rs[] = {
     37     GNUNET_PQ_result_spec_auto_from_type ("master_sig",
     38                                           master_sig),
     39     GNUNET_PQ_result_spec_uint64 ("denom_revocations_serial_id",
     40                                   rowid),
     41     GNUNET_PQ_result_spec_end
     42   };
     43 
     44   PREPARE (pg,
     45            "denomination_revocation_get",
     46            "SELECT"
     47            " master_sig"
     48            ",denom_revocations_serial_id"
     49            " FROM denomination_revocations"
     50            " WHERE denominations_serial="
     51            "  (SELECT denominations_serial"
     52            "    FROM denominations"
     53            "    WHERE denom_pub_hash=$1);");
     54 
     55   return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
     56                                                    "denomination_revocation_get",
     57                                                    params,
     58                                                    rs);
     59 }