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https://git.rwth-aachen.de/acs/public/villas/node/
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Steffen Vogel
30fbc53e06
git-svn-id: https://zerberus.eonerc.rwth-aachen.de:8443/svn/s2ss/trunk@136 8ec27952-4edc-4aab-86aa-e87bb2611832
42 lines
984 B
C
42 lines
984 B
C
/** Message format
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*
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* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
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* @copyright 2014, Institute for Automation of Complex Power Systems, EONERC
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* @file
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*/
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#ifndef _MSG_FORMAT_H_
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#define _MSG_FORMAT_H_
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#include <stdint.h>
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#include "config.h"
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#define MSG_VERSION 0
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/** @todo Implement more message types */
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#define MSG_TYPE_DATA 0
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#define MSG_TYPE_START 1
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#define MSG_TYPE_STOP 2
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/** This message format is used by all clients
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*
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* @diafile msg_format.dia
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**/
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struct msg
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{
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/** The version specifies the format of the remaining message */
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unsigned version : 4;
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/** Data or control message */
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unsigned type : 2;
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/** These bits are reserved for future extensions */
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unsigned __padding : 2;
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/** Length in dwords of the whole message */
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uint8_t length;
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/** The sequence number gets incremented by one for consecutive messages */
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uint16_t sequence;
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/** The message payload */
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float data[MAX_VALUES];
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} __attribute__((packed));
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#endif /* _MSG_FORMAT_H_ */
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