get_coin_transactions.h (2729B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2022, 2023 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 get_coin_transactions.h 18 * @brief implementation of the get_coin_transactions function 19 * @author Christian Grothoff 20 */ 21 #ifndef EXCHANGE_DATABASE_GET_COIN_TRANSACTIONS_H 22 #define EXCHANGE_DATABASE_GET_COIN_TRANSACTIONS_H 23 24 #include "taler/taler_util.h" 25 #include "exchangedb_lib.h" 26 #include "exchange-database/free_coin_transaction_list.h" 27 28 29 /** 30 * Compile a list of (historic) transactions performed with the given coin 31 * (melt, refund, recoup and deposit operations). Should return 0 if the @a 32 * coin_pub is unknown, otherwise determine @a etag_out and if it is past @a 33 * etag_in return the history after @a start_off. @a etag_out should be set 34 * to the last row ID of the given @a coin_pub in the coin history table. 35 * 36 * Primary test table: `coin_history` (see test_coin_history.c). 37 * 38 * @param pg the database context 39 * @param begin_transaction true to run this in its own transaction(s) 40 * @param coin_pub coin to investigate 41 * @param start_off starting offset from which on to return entries 42 * @param etag_in up to this offset the client already has a response, do not 43 * return anything unless @a etag_out will be larger 44 * @param[out] etag_out set to the latest history offset known for this @a coin_pub 45 * @param[out] balance set to current balance of the coin 46 * @param[out] h_denom_pub set to denomination public key of the coin 47 * @param[out] tlp set to list of transactions, set to NULL if coin has no 48 * transaction history past @a start_off or if @a etag_in is equal 49 * to the value written to @a etag_out. 50 * @return database transaction status 51 */ 52 enum GNUNET_DB_QueryStatus 53 TALER_EXCHANGEDB_get_coin_transactions ( 54 struct TALER_EXCHANGEDB_PostgresContext *pg, 55 bool begin_transaction, 56 const struct TALER_CoinSpendPublicKeyP *coin_pub, 57 uint64_t start_off, 58 uint64_t etag_in, 59 uint64_t *etag_out, 60 struct TALER_Amount *balance, 61 struct TALER_DenominationHashP *h_denom_pub, 62 struct TALER_EXCHANGEDB_TransactionList **tlp) 63 ; 64 65 66 #endif