exchange/src/exchangedb/pg_get_old_coin_by_h_blind.h
2023-03-31 13:50:32 +02:00

46 lines
1.6 KiB
C

/*
This file is part of TALER
Copyright (C) 2022 Taler Systems SA
TALER is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
TALER is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
* @file exchangedb/pg_get_old_coin_by_h_blind.h
* @brief implementation of the get_old_coin_by_h_blind function for Postgres
* @author Christian Grothoff
*/
#ifndef PG_GET_OLD_COIN_BY_H_BLIND_H
#define PG_GET_OLD_COIN_BY_H_BLIND_H
#include "taler_util.h"
#include "taler_json_lib.h"
#include "taler_exchangedb_plugin.h"
/**
* Obtain information about which old coin a coin was refreshed
* given the hash of the blinded (fresh) coin.
*
* @param cls closure
* @param h_blind_ev hash of the blinded coin
* @param[out] old_coin_pub set to information about the old coin (on success only)
* @param[out] rrc_serial set to serial number of the entry in the database
* @return transaction status code
*/
enum GNUNET_DB_QueryStatus
TEH_PG_get_old_coin_by_h_blind (
void *cls,
const struct TALER_BlindedCoinHashP *h_blind_ev,
struct TALER_CoinSpendPublicKeyP *old_coin_pub,
uint64_t *rrc_serial);
#endif