get_old_coin_by_h_blind.h (1907B)
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 src/include/exchange-database/get_old_coin_by_h_blind.h 18 * @brief implementation of the get_old_coin_by_h_blind function for Postgres 19 * @author Christian Grothoff 20 */ 21 #ifndef EXCHANGE_DATABASE_GET_OLD_COIN_BY_H_BLIND_H 22 #define EXCHANGE_DATABASE_GET_OLD_COIN_BY_H_BLIND_H 23 24 #include "exchangedb_lib.h" 25 26 27 /** 28 * Obtain information about which old coin a coin was refreshed 29 * given the hash of the blinded (fresh) coin. 30 * 31 * @param pg the database context 32 * @param h_blind_ev hash of the blinded coin 33 * @param[out] old_coin_pub set to information about the old coin (on success only) 34 * @param[out] rrc_serial set to serial number of the entry in the database 35 * @return transaction status code 36 */ 37 enum GNUNET_DB_QueryStatus 38 TALER_EXCHANGEDB_get_old_coin_by_h_blind (struct 39 TALER_EXCHANGEDB_PostgresContext *pg, 40 const struct TALER_BlindedCoinHashP * 41 h_blind_ev, 42 struct TALER_CoinSpendPublicKeyP * 43 old_coin_pub, 44 uint64_t *rrc_serial); 45 46 #endif