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/*
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_insert_reserve_closed.c
* @brief Implementation of the insert_reserve_closed function for Postgres
* @author Christian Grothoff
*/
#include "platform.h"
#include "taler_error_codes.h"
#include "taler_dbevents.h"
#include "taler_pq_lib.h"
#include "pg_insert_reserve_closed.h"
#include "pg_helper.h"
#include "pg_reserves_get.h"
#include "pg_reserves_update.h"
enum GNUNET_DB_QueryStatus
TEH_PG_insert_reserve_closed (
void *cls,
const struct TALER_ReservePublicKeyP *reserve_pub,
struct GNUNET_TIME_Timestamp execution_date,
const char *receiver_account,
const struct TALER_WireTransferIdentifierRawP *wtid,
const struct TALER_Amount *amount_with_fee,
const struct TALER_Amount *closing_fee,
uint64_t close_request_row)
{
struct PostgresClosure *pg = cls;
struct TALER_EXCHANGEDB_Reserve reserve;
enum GNUNET_DB_QueryStatus qs;
struct TALER_PaytoHashP h_payto;
TALER_payto_hash (receiver_account,
&h_payto);
{
struct GNUNET_PQ_QueryParam params[] = {
GNUNET_PQ_query_param_auto_from_type (reserve_pub),
GNUNET_PQ_query_param_timestamp (&execution_date),
GNUNET_PQ_query_param_auto_from_type (wtid),
GNUNET_PQ_query_param_auto_from_type (&h_payto),
TALER_PQ_query_param_amount (amount_with_fee),
TALER_PQ_query_param_amount (closing_fee),
GNUNET_PQ_query_param_uint64 (&close_request_row),
GNUNET_PQ_query_param_end
};
/* Used in #postgres_insert_reserve_closed() */
PREPARE (pg,
"reserves_close_insert",
"INSERT INTO reserves_close "
"(reserve_pub"
",execution_date"
",wtid"
",wire_target_h_payto"
",amount_val"
",amount_frac"
",closing_fee_val"
",closing_fee_frac"
",close_request_row"
") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9);");
qs = GNUNET_PQ_eval_prepared_non_select (pg->conn,
"reserves_close_insert",
params);
}
if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT != qs)
return qs;
/* update reserve balance */
reserve.pub = *reserve_pub;
if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT !=
(qs = TEH_PG_reserves_get (cls,
&reserve)))
{
/* Existence should have been checked before we got here... */
GNUNET_break (GNUNET_DB_STATUS_SOFT_ERROR == qs);
if (GNUNET_DB_STATUS_SUCCESS_NO_RESULTS == qs)
qs = GNUNET_DB_STATUS_HARD_ERROR;
return qs;
}
{
enum TALER_AmountArithmeticResult ret;
ret = TALER_amount_subtract (&reserve.balance,
&reserve.balance,
amount_with_fee);
if (ret < 0)
{
/* The reserve history was checked to make sure there is enough of a balance
left before we tried this; however, concurrent operations may have changed
the situation by now. We should re-try the transaction. */
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Closing of reserve `%s' refused due to balance mismatch. Retrying.\n",
TALER_B2S (reserve_pub));
return GNUNET_DB_STATUS_HARD_ERROR;
}
GNUNET_break (TALER_AAR_RESULT_ZERO == ret);
}
return TEH_PG_reserves_update (cls,
&reserve);
}
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