src/scontrol/reboot_node.c

/*****************************************************************************\
 *  reboot_node.c - scontrol reboot functionality
 *****************************************************************************
 *  Copyright (C) SchedMD LLC.
 *
 *  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 "src/scontrol/scontrol.h"

extern int scontrol_cancel_reboot(char *nodes)
{
	int rc = SLURM_SUCCESS;
	update_node_msg_t node_msg;

	slurm_init_update_node_msg(&node_msg);

	node_msg.node_names = nodes;
	node_msg.node_state = NODE_STATE_REBOOT_CANCEL;

	if (slurm_update_node(&node_msg)) {
		exit_code = 1;
		rc = errno;
		slurm_perror ("slurm_update error");
	}

	return rc;
}

/*
 * Issue RPC to have compute nodes reboot when idle
 *
 * IN node_list  - list of nodes to reboot or ALL
 * IN asap       - ASAP option
 * IN next_state - next_state for the node after reboot
 * IN reason     - reason to attach to node during reboot
 *
 * RET SLURM_SUCCESS or a slurm error code
 */
extern int scontrol_reboot_nodes(char *node_list, bool asap,
				 uint32_t next_state, char *reason)
{
	slurm_conf_t *conf;
	int rc;
	slurm_msg_t msg;
	reboot_msg_t req;

	conf = slurm_conf_lock();
	if (conf->reboot_program == NULL) {
		error("RebootProgram isn't defined");
		slurm_conf_unlock();
		errno = SLURM_ERROR;
		return SLURM_ERROR;
	}
	slurm_conf_unlock();

	slurm_msg_t_init(&msg);

	slurm_init_reboot_msg(&req, true);
	req.next_state = next_state;
	req.node_list  = node_list;
	req.reason     = reason;
	if (asap)
		req.flags |= REBOOT_FLAGS_ASAP;
	msg.msg_type = REQUEST_REBOOT_NODES;
	msg.data = &req;

	if (slurm_send_recv_controller_rc_msg(&msg, &rc, working_cluster_rec)<0)
		return SLURM_ERROR;

	if (rc)
		slurm_seterrno_ret(rc);

	return rc;
}