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/**
* @file nmea.h
* @note Copyright (C) 2020 Richard Cochran <richardcochran@gmail.com>
* @note SPDX-License-Identifier: GPL-2.0+
*/
#ifndef HAVE_NMEA_H
#define HAVE_NMEA_H
#include <stdbool.h>
#include <time.h>
/** Opaque type. */
struct nmea_parser;
struct nmea_rmc {
struct timespec ts;
bool fix_valid;
};
/**
* Parses NMEA RMC sentences out of a given buffer.
* @param np Pointer obtained via nmea_parser_create().
* @param buf Pointer to the data to be parsed.
* @param buflen Length of 'buf' in bytes.
* @param rmc Pointer to hold the result.
* @param parsed Returns the number of bytes parsed, possibly less than buflen.
* @return Zero on success, non-zero otherwise.
*/
int nmea_parse(struct nmea_parser *np, const char *buf, int buflen,
struct nmea_rmc *rmc, int *parsed);
/**
* Creates an instance of an NMEA parser.
* @return Pointer to a new instance on success, NULL otherwise.
*/
struct nmea_parser *nmea_parser_create(void);
/**
* Destroys an NMEA parser instance.
* @param np Pointer obtained via nmea_parser_create().
*/
void nmea_parser_destroy(struct nmea_parser *np);
#endif
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