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