ardupilot/Tools/Replay/DataFlashFileReader.h

#pragma once

#include <DataFlash/DataFlash.h>

#define LOGREADER_MAX_FORMATS 255 // must be >= highest MESSAGE

class DataFlashFileReader
{
public:

    DataFlashFileReader();
    ~DataFlashFileReader();

    bool open_log(const char *logfile);
    bool update(char type[5]);

    virtual bool handle_log_format_msg(const struct log_Format &f) = 0;
    virtual bool handle_msg(const struct log_Format &f, uint8_t *msg) = 0;

    void format_type(uint16_t type, char dest[5]);
    void get_packet_counts(uint64_t dest[]);

protected:
    int fd = -1;
    bool done_format_msgs = false;
    virtual void end_format_msgs(void) {}

    struct log_Format formats[LOGREADER_MAX_FORMATS] {};

private:
    ssize_t read_input(void *buf, size_t count);

    uint64_t bytes_read = 0;
    uint32_t message_count = 0;
    uint64_t start_micros;

    uint64_t packet_counts[LOGREADER_MAX_FORMATS] = {};
};