iterate_denominations.h (2921B)
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master_sig master signature affirming the validity of this denomination 37 * @param recoup_possible true if the key was revoked and clients can currently recoup 38 * coins of this denomination 39 */ 40 #ifndef TALER_EXCHANGEDB_DENOMINATIONS_RESULT_CLOSURE 41 /** 42 * Type of the closure for #TALER_EXCHANGEDB_DenominationsCallback. 43 */ 44 #define TALER_EXCHANGEDB_DENOMINATIONS_RESULT_CLOSURE void 45 #endif 46 typedef void 47 (*TALER_EXCHANGEDB_DenominationsCallback)( 48 TALER_EXCHANGEDB_DENOMINATIONS_RESULT_CLOSURE *cls, 49 const struct TALER_DenominationPublicKey *denom_pub, 50 const struct TALER_DenominationHashP *h_denom_pub, 51 const struct TALER_EXCHANGEDB_DenominationKeyMetaData *meta, 52 const struct TALER_MasterSignatureP *master_sig, 53 bool recoup_possible); 54 55 56 /** 57 * Function called to invoke @a cb on every known denomination key (revoked 58 * and non-revoked) that has been signed by the master key. Runs in its own 59 * read-only transaction. 60 * 61 * 62 * @param pg the database context 63 * @param cb function to call on each denomination key 64 * @param cb_cls closure for @a cb 65 * @return transaction status code 66 */ 67 enum GNUNET_DB_QueryStatus 68 TALER_EXCHANGEDB_iterate_denominations (struct 69 TALER_EXCHANGEDB_PostgresContext *pg, 70 TALER_EXCHANGEDB_DenominationsCallback 71 cb, 72 TALER_EXCHANGEDB_DENOMINATIONS_RESULT_CLOSURE 73 *cb_cls); 74 75 #endif