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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 backenddb/pg_expire_locks.c
* @brief Implementation of the expire_locks function for Postgres
* @author Iván Ávalos
*/
#include "platform.h"
#include <taler/taler_error_codes.h>
#include <taler/taler_dbevents.h>
#include <taler/taler_pq_lib.h>
#include "pg_expire_locks.h"
#include "pg_helper.h"
enum GNUNET_DB_QueryStatus
TMH_PG_expire_locks (void *cls)
{
struct PostgresClosure *pg = cls;
struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get ();
struct GNUNET_PQ_QueryParam params[] = {
GNUNET_PQ_query_param_absolute_time (&now),
GNUNET_PQ_query_param_end
};
enum GNUNET_DB_QueryStatus qs1;
enum GNUNET_DB_QueryStatus qs2;
enum GNUNET_DB_QueryStatus qs3;
check_connection (pg);
PREPARE (pg,
"unlock_products",
"DELETE FROM merchant_inventory_locks"
" WHERE expiration < $1");
qs1 = GNUNET_PQ_eval_prepared_non_select (pg->conn,
"unlock_products",
params);
if (qs1 < 0)
{
GNUNET_break (0);
return qs1;
}
PREPARE (pg,
"unlock_orders",
"DELETE FROM merchant_orders"
" WHERE pay_deadline < $1");
qs2 = GNUNET_PQ_eval_prepared_non_select (pg->conn,
"unlock_orders",
params);
if (qs2 < 0)
{
GNUNET_break (0);
return qs2;
}
PREPARE (pg,
"unlock_contracts",
"DELETE FROM merchant_contract_terms"
" WHERE NOT paid"
" AND pay_deadline < $1");
qs3 = GNUNET_PQ_eval_prepared_non_select (pg->conn,
"unlock_contracts",
params);
if (qs3 < 0)
{
GNUNET_break (0);
return qs3;
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Released %d+%d+%d locks\n",
qs1,
qs2,
qs3);
return qs1 + qs2 + qs3;
}
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