check_donau_instance.c (2170B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2025 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 src/backenddb/check_donau_instance.c 18 * @brief Implementation of the check_donau_instance function for Postgres 19 * @author Christian Grothoff 20 */ 21 #include "platform.h" 22 #include <taler/taler_error_codes.h> 23 #include <taler/taler_dbevents.h> 24 #include <taler/taler_pq_lib.h> 25 #include "merchant-database/check_donau_instance.h" 26 #include "helper.h" 27 28 29 enum GNUNET_DB_QueryStatus 30 TALER_MERCHANTDB_check_donau_instance ( 31 struct TALER_MERCHANTDB_PostgresContext *pg, 32 const struct TALER_MerchantPublicKeyP *merchant_pub, 33 const char *donau_url, 34 uint64_t charity_id) 35 { 36 struct GNUNET_PQ_QueryParam params[] = { 37 GNUNET_PQ_query_param_string (donau_url), 38 GNUNET_PQ_query_param_uint64 (&charity_id), 39 GNUNET_PQ_query_param_end 40 }; 41 struct GNUNET_PQ_ResultSpec rs[] = { 42 GNUNET_PQ_result_spec_end 43 }; 44 45 GNUNET_assert (NULL != pg->current_merchant_id); 46 GNUNET_assert (0 == 47 GNUNET_memcmp (merchant_pub, 48 &pg->current_merchant_pub)); 49 check_connection (pg); 50 TMH_PQ_prepare_anon (pg, 51 "SELECT 1" 52 " FROM merchant_donau_instances" 53 " WHERE donau_url=$1" 54 " AND charity_id=$2"); 55 return GNUNET_PQ_eval_prepared_singleton_select (pg->conn, 56 "", 57 params, 58 rs); 59 }