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mirrored new message format to client directories

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git-svn-id: https://zerberus.eonerc.rwth-aachen.de:8443/svn/s2ss/trunk@169 8ec27952-4edc-4aab-86aa-e87bb2611832
This commit is contained in:
Steffen Vogel 2014-07-18 16:05:49 +00:00
parent c5a717bcda
commit b8b5888b3b
1 changed files with 39 additions and 12 deletions
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51
clients/opal/models/send_receive/include/MsgFormat.h
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@ -10,20 +10,39 @@
#include <stdint.h>
#ifndef BYTE_ORDER
#define _BSD_SOURCE 1
#include <endian.h>
#endif
/** Maximum number of dword values in a message */
#define MSG_VALUES 16
#define MSG_VALUES 16
/** The current version number for the message format */
#define MSG_VERSION 0
#define MSG_VERSION 0
/** @todo Implement more message types */
#define MSG_TYPE_DATA 0
#define MSG_TYPE_START 1
#define MSG_TYPE_STOP 2
#define MSG_TYPE_DATA 0 /**< Message contains float values */
#define MSG_TYPE_START 1 /**< Message marks the beginning of a new simulation case */
#define MSG_TYPE_STOP 2 /**< Message marks the end of a simulation case */
#define MSG_ENDIAN_LITTLE 0 /**< Message values are in little endian format (float too!) */
#define MSG_ENDIAN_BIG 1 /**< Message values are in bit endian format */
#if BYTE_ORDER == LITTLE_ENDIAN
#define MSG_ENDIAN_HOST MSG_ENDIAN_LITTLE
#elif BYTE_ORDER == BIG_ENDIAN
#define MSG_ENDIAN_HOST MSG_ENDIAN_BIG
#endif
/** The total length of a message */
#define MSG_LEN(values) (4 * (values + 1))
/** Initialize a message */
#define MSG_INIT(i) { \
.version = MSG_VERSION, \
.type = MSG_TYPE_DATA, \
.endian = MSG_ENDIAN_HOST, \
.length = i, \
.sequence = 0 \
}
@ -34,18 +53,26 @@
**/
struct msg
{
/** The version specifies the format of the remaining message */
unsigned version : 4;
/** Data or control message */
unsigned type : 2;
/** These bits are reserved for future extensions */
unsigned __padding : 2;
#if BYTE_ORDER == BIG_ENDIAN
unsigned version: 4; /**< Specifies the format of the remaining message (see MGS_VERSION) */
unsigned type : 2; /**< Data or control message (see MSG_TYPE_*) */
unsigned endian : 1; /**< Specifies the byteorder of the message (see MSG_ENDIAN_*) */
unsigned : 1; /**< Reserved padding bits */
#else
unsigned : 1; /**< Reserved padding bits */
unsigned endian : 1; /**< Specifies the byteorder of the message (see MSG_ENDIAN_*) */
unsigned type : 2; /**< Data or control message (see MSG_TYPE_*) */
unsigned version: 4; /**< Specifies the format of the remaining message (see MGS_VERSION) */
#endif
/** Number of valid dword values in msg::data[] */
uint8_t length;
/** The sequence number gets incremented by one for consecutive messages */
uint16_t sequence;
/** The message payload */
float data[MSG_VALUES];
union {
float f;
uint32_t i;
} data[MSG_VALUES];
} __attribute__((packed));
#endif /* _MSG_FORMAT_H_ */