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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 pg_do_reserve_open.c
* @brief Low-level (statement-level) Postgres database access for the exchange
* @author Christian Grothoff
*/
#include "platform.h"
#include "taler_error_codes.h"
#include "taler_dbevents.h"
#include "taler_pq_lib.h"
#include "pg_do_reserve_open.h"
#include "pg_helper.h"
enum GNUNET_DB_QueryStatus
TEH_PG_do_reserve_open (
void *cls,
const struct TALER_ReservePublicKeyP *reserve_pub,
const struct TALER_Amount *total_paid,
const struct TALER_Amount *reserve_payment,
uint32_t min_purse_limit,
const struct TALER_ReserveSignatureP *reserve_sig,
struct GNUNET_TIME_Timestamp desired_expiration,
struct GNUNET_TIME_Timestamp now,
const struct TALER_Amount *open_fee,
bool *no_funds,
struct TALER_Amount *reserve_balance,
struct TALER_Amount *open_cost,
struct GNUNET_TIME_Timestamp *final_expiration)
{
struct PostgresClosure *pg = cls;
struct GNUNET_PQ_QueryParam params[] = {
GNUNET_PQ_query_param_auto_from_type (reserve_pub),
TALER_PQ_query_param_amount (
pg->conn,
total_paid),
TALER_PQ_query_param_amount (
pg->conn,
reserve_payment),
GNUNET_PQ_query_param_uint32 (&min_purse_limit),
GNUNET_PQ_query_param_uint32 (&pg->def_purse_limit),
GNUNET_PQ_query_param_auto_from_type (reserve_sig),
GNUNET_PQ_query_param_timestamp (&desired_expiration),
GNUNET_PQ_query_param_relative_time (&pg->legal_reserve_expiration_time),
GNUNET_PQ_query_param_timestamp (&now),
TALER_PQ_query_param_amount (pg->conn,
open_fee),
GNUNET_PQ_query_param_end
};
bool no_reserve = true;
struct GNUNET_PQ_ResultSpec rs[] = {
TALER_PQ_result_spec_amount ("out_open_cost",
pg->currency,
open_cost),
TALER_PQ_result_spec_amount ("out_reserve_balance",
pg->currency,
reserve_balance),
GNUNET_PQ_result_spec_timestamp ("out_final_expiration",
final_expiration),
GNUNET_PQ_result_spec_bool ("out_no_reserve",
&no_reserve),
GNUNET_PQ_result_spec_bool ("out_no_funds",
no_funds),
GNUNET_PQ_result_spec_end
};
enum GNUNET_DB_QueryStatus qs;
PREPARE (pg,
"do_reserve_open",
"SELECT "
" out_open_cost"
",out_final_expiration"
",out_no_funds"
",out_no_reserve"
",out_reserve_balance"
" FROM exchange_do_reserve_open"
" ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10);");
qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
"do_reserve_open",
params,
rs);
if (qs <= 0)
return qs;
if (no_reserve)
return GNUNET_DB_STATUS_SUCCESS_NO_RESULTS;
return qs;
}
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