/*
This file is part of CanFestival, a library implementing CanOpen Stack. 

Copyright (C): Edouard TISSERANT and Francis DUPIN

See COPYING file for copyrights details.

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library 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
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#ifndef __lifegrd_h__
#define __lifegrd_h__


#include <applicfg.h>

typedef void (*heartbeatError_t)(UNS8);

#include "data.h"

/*************************************************************************
 * Functions
 *************************************************************************/


/** To read the state of a node
 *  This can be used by the master after having sent a life guard request,
 *  of by any node if it is waiting for heartbeat.
 */
e_nodeState getNodeState (CO_Data* d, UNS8 nodeId);

/** Start heartbeat consumer and producer
 *  with respect to 0x1016 and 0x1017
 *  object dictionary entries
 */
void heartbeatInit(CO_Data* d);

/** Stop heartbeat consumer and producer
 */
void heartbeatStop(CO_Data* d);

/** This function is responsible to process a canopen-message which seams to be an NMT Error Control
 *  Messages. At them moment we assume that every NMT error control message
 *  is a heartbeat message.
 *  \param Message The CAN-message which has to be analysed.
 *  If a BootUp message is detected, it will return the nodeId of the Slave who booted up
 */
void proceedNODE_GUARD (CO_Data* d, Message* m);

#endif /*__lifegrd_h__ */