/*
   This file is part of Challenger
   Copyright (C) 2023 Taler Systems SA

   Challenger 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.

   Challenger 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
   Challenger; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
 */
/**
 * @file src/include/challenger-database/preflight.h
 * @brief implementation of the preflight function for Postgres
 * @author Christian Grothoff
 */
#ifndef CHALLENGER_DATABASE_PREFLIGHT_H
#define CHALLENGER_DATABASE_PREFLIGHT_H

#include "challenger_database_lib.h"


/**
 * Do a pre-flight check that we are not in an uncommitted transaction.
 * If we are, rolls back the previous transaction and outputs a warning.
 *
 * @param cls the `struct PostgresClosure` with the plugin-specific state
 * @return #GNUNET_OK if everything is fine
 *         #GNUNET_NO if a transaction was rolled back
 *         #GNUNET_SYSERR on hard errors
 */
enum GNUNET_GenericReturnValue
CHALLENGERDB_preflight (struct CHALLENGERDB_PostgresContext *pg);

#endif
