tx01-data/tx01_msg.hpp

#ifndef _TELEMETRY_HPP_
#define _TELEMETRY_HPP_ 1

#if __cplusplus < 201103L
#include <boost/static_assert.hpp>
#define static_assert BOOST_STATIC_ASSERT
#endif

#include "tx01_endian.hpp"

#define TX01_MSG_HEADER_MAGIC 1234567890
#define TX01_MSG_POSTAMBLE -1234567890

struct tx01_msg_header
{
	// should be MSG_HEADER_MAGIC
	big_int32_t magic;
	// size of the message (including header and postamble)
	big_int32_t size;
	// user configurable for flow identification
	big_int32_t flow;
};

static_assert(sizeof(struct tx01_msg_header) == 12);

struct tx01_data_msg
{
	struct tx01_msg_header header;
	big_int32_t time_tag_1;
	big_int32_t time_tag_2;
	big_uint32_t seq_counter;
	big_int32_t frame_check_result;
	big_int32_t frame_sync_stat;
	big_int32_t bit_slip_stat;
	big_int32_t tm_delay;
	big_int32_t frame_len;
	big_int32_t sync_word_len;
	big_int32_t frame_check_rs_stat;
	big_int32_t data_fmt;
	big_int32_t _unused0;
	big_int32_t _unused1;
	char data[];
};

static_assert(sizeof(struct tx01_data_msg) == 64);

/* Try to match a tx01_msg_header at ptr.  If success, return a pointer
 * to this tx01_msg_header.  Otherwise return NULL. */
extern const struct tx01_msg_header *
tx01_try_match_msg_header(const char *ptr);

extern const struct tx01_data_msg *
tx01_try_match_data_msg(const struct tx01_msg_header *ptr);

#undef _STATIC_ASSERT
#undef _CAT2
#undef _CAT
#endif