/*****************************************************************************\
 *  connection_functions.c - Interface to functions dealing with connections
 *                           to the database.
 ******************************************************************************
 *  Copyright (C) 2010 Lawrence Livermore National Security.
 *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
 *  Written by Danny Auble da@llnl.gov, et. al.
 *  CODE-OCEC-09-009. All rights reserved.
 *
 *  This file is part of Slurm, a resource management program.
 *  For details, see <https://slurm.schedmd.com/>.
 *  Please also read the included file: DISCLAIMER.
 *
 *  Slurm 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 2 of the License, or (at your option)
 *  any later version.
 *
 *  In addition, as a special exception, the copyright holders give permission
 *  to link the code of portions of this program with the OpenSSL library under
 *  certain conditions as described in each individual source file, and
 *  distribute linked combinations including the two. You must obey the GNU
 *  General Public License in all respects for all of the code used other than
 *  OpenSSL. If you modify file(s) with this exception, you may extend this
 *  exception to your version of the file(s), but you are not obligated to do
 *  so. If you do not wish to do so, delete this exception statement from your
 *  version.  If you delete this exception statement from all source files in
 *  the program, then also delete it here.
 *
 *  Slurm 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 Slurm; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA.
\*****************************************************************************/

#include "slurm/slurm.h"
#include "slurm/slurm_errno.h"
#include "slurm/slurmdb.h"

#include "src/common/slurm_accounting_storage.h"
/*
 * get a new connection to the slurmdb
 * RET: pointer used to access db
 */
extern void *slurmdb_connection_get(void)
{
	char *cluster_name = slurm_get_cluster_name();
	void *db_conn = acct_storage_g_get_connection(NULL, 0, NULL,
						      1, cluster_name);
	xfree(cluster_name);
	return db_conn;
}

/*
 * get a new connection to the slurmdb
 * OUT: persist_conn_flags - Flags returned from connection if any see
 *                           slurm_persist_conn.h.
 * RET: pointer used to access db
 */
extern void *slurmdb_connection_get2(uint16_t *persist_conn_flags)
{
	char *cluster_name = slurm_get_cluster_name();
	void *db_conn = acct_storage_g_get_connection(NULL, 0,
						      persist_conn_flags,
						      1, cluster_name);
	xfree(cluster_name);
	return db_conn;
}

/*
 * release connection to the storage unit
 * IN/OUT: void ** pointer returned from
 *         slurmdb_connection_get() which will be freed.
 * RET: SLURM_SUCCESS on success SLURM_ERROR else
 */
extern int slurmdb_connection_close(void **db_conn)
{
	return acct_storage_g_close_connection(db_conn);
}

/*
 * commit or rollback changes made without closing connection
 * IN: void * pointer returned from slurmdb_connection_get()
 * IN: bool - true will commit changes false will rollback
 * RET: SLURM_SUCCESS on success SLURM_ERROR else
 */
extern int slurmdb_connection_commit(void *db_conn, bool commit)
{
	return acct_storage_g_commit(db_conn, commit);
}