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/*

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

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Copyright (C): Edouard TISSERANT and Francis DUPIN

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See COPYING file for copyrights details.

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This library is free software; you can redistribute it and/or

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modify it under the terms of the GNU Lesser General Public

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License as published by the Free Software Foundation; either

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version 2.1 of the License, or (at your option) any later version.

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This library is distributed in the hope that it will be useful,

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but WITHOUT ANY WARRANTY; without even the implied warranty of

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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

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Lesser General Public License for more details.

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You should have received a copy of the GNU Lesser General Public

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License along with this library; if not, write to the Free Software

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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

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*/

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#ifndef __lifegrd_h__

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#define __lifegrd_h__

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#include <applicfg.h>

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typedef void (*heartbeatError_t)(UNS8);

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#include "data.h"

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/*************************************************************************

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 * Functions

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 *************************************************************************/

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/** To read the state of a node

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 *  This can be used by the master after having sent a life guard request,

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 *  of by any node if it is waiting for heartbeat.

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 */

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e_nodeState getNodeState (CO_Data* d, UNS8 nodeId);

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/** Start heartbeat consumer and producer

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 *  with respect to 0x1016 and 0x1017

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 *  object dictionary entries

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 */

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void heartbeatInit(CO_Data* d);

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/** Stop heartbeat consumer and producer

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 */

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void heartbeatStop(CO_Data* d);

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/** This function is responsible to process a canopen-message which seams to be an NMT Error Control

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 *  Messages. At them moment we assume that every NMT error control message

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 *  is a heartbeat message.

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 *  \param Message The CAN-message which has to be analysed.

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 *  If a BootUp message is detected, it will return the nodeId of the Slave who booted up

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 */

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void proceedNODE_GUARD (CO_Data* d, Message* m);

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#endif /*__lifegrd_h__ */