iterate_denominations.h (2603B)
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/iterate_denominations.h 18 * @brief implementation of the iterate_denominations function for Postgres 19 * @author Christian Grothoff 20 */ 21 #ifndef EXCHANGE_DATABASE_ITERATE_DENOMINATIONS_H 22 #define EXCHANGE_DATABASE_ITERATE_DENOMINATIONS_H 23 24 #include "taler/taler_json_lib.h" 25 #include "exchangedb_lib.h" 26 27 28 /** 29 * Signature of a function called with information about the exchange's 30 * denomination keys. 31 * 32 * @param cls closure with a `struct TEH_KeyStateHandle *` 33 * @param denom_pub public key of the denomination 34 * @param h_denom_pub hash of @a denom_pub 35 * @param meta meta data information about the denomination type (value, expirations, fees) 36 * @param master_sig master signature affirming the validity of this denomination 37 * @param recoup_possible true if the key was revoked and clients can currently recoup 38 * coins of this denomination 39 */ 40 typedef void 41 (*TALER_EXCHANGEDB_DenominationsCallback)( 42 void *cls, 43 const struct TALER_DenominationPublicKey *denom_pub, 44 const struct TALER_DenominationHashP *h_denom_pub, 45 const struct TALER_EXCHANGEDB_DenominationKeyMetaData *meta, 46 const struct TALER_MasterSignatureP *master_sig, 47 bool recoup_possible); 48 49 50 /** 51 * Function called to invoke @a cb on every known denomination key (revoked 52 * and non-revoked) that has been signed by the master key. Runs in its own 53 * read-only transaction. 54 * 55 * 56 * @param pg the database context 57 * @param cb function to call on each denomination key 58 * @param cb_cls closure for @a cb 59 * @return transaction status code 60 */ 61 enum GNUNET_DB_QueryStatus 62 TALER_EXCHANGEDB_iterate_denominations (struct 63 TALER_EXCHANGEDB_PostgresContext *pg, 64 TALER_EXCHANGEDB_DenominationsCallback 65 cb, 66 void *cb_cls); 67 68 #endif