do_refresh.h (2801B)
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/include/exchange-database/do_refresh.h 18 * @brief implementation of the do_refresh function for Postgres 19 * @author Özgür Kesim 20 */ 21 #ifndef EXCHANGE_DATABASE_DO_REFRESH_H 22 #define EXCHANGE_DATABASE_DO_REFRESH_H 23 24 #include "taler/taler_util.h" 25 #include "taler/taler_json_lib.h" 26 #include "exchangedb_lib.h" 27 28 /** 29 * Perform refresh operation--introduced with v26 of the API--, 30 * checking for sufficient balance of the coin and possibly persisting the melt/refresh details. 31 * 32 * Primary test table: `refresh` (see test_refresh.c). 33 * 34 * @param pg the database context 35 * @param[in,out] refresh refresh operation details; the noreveal_index 36 * is set in case the coin was already melted before 37 * @param timestamp the timestamp of this melt operation, helpful for the coin history. 38 * @param[in,out] zombie_required true if the melt must only succeed 39 * if the coin is a zombie, set to false if the requirement was satisfied 40 * @param[out] found set to true if there exists already an entry in the database for 41 * the calculated commitment hash. 42 * @param[out] noreveal_index if @e idempotent ist true, the existing value of the noreveal_index. 43 * @param[out] nonce_reuse set to true if the blinding seed for CS was re-used. 44 * @param[out] balance_ok set to true if the balance was sufficient 45 * @param[out] coin_balance if balance_ok is false, set to the remaining value of the coin 46 * @return query execution status, NO_RESULTS in case of an unknown coin. 47 */ 48 enum GNUNET_DB_QueryStatus 49 TALER_EXCHANGEDB_do_refresh (struct TALER_EXCHANGEDB_PostgresContext *pg, 50 struct TALER_EXCHANGEDB_Refresh_vDOLDPLUS *refresh, 51 const struct GNUNET_TIME_Timestamp *timestamp, 52 bool *found, 53 uint32_t *noreveal_index, 54 bool *zombie_required, 55 bool *nonce_reuse, 56 bool *balance_ok, 57 struct TALER_Amount *coin_balance); 58 59 #endif