mirror of https://github.com/ArduPilot/ardupilot
75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
/// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*-
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/*
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DataFlash logging - file oriented variant
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This uses posix file IO to create log files called logNN.dat in the
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given directory
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*/
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#ifndef DataFlash_File_h
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#define DataFlash_File_h
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class DataFlash_File : public DataFlash_Class
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{
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public:
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// constructor
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DataFlash_File(const char *log_directory);
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// initialisation
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void Init(void);
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bool CardInserted(void);
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// erase handling
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bool NeedErase(void);
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void EraseAll();
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/* Write a block of data at current offset */
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void WriteBlock(const void *pBuffer, uint16_t size);
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// high level interface
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uint16_t find_last_log(void);
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void get_log_boundaries(uint16_t log_num, uint16_t & start_page, uint16_t & end_page);
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uint16_t get_num_logs(void);
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uint16_t start_new_log(void);
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void LogReadProcess(uint16_t log_num,
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uint16_t start_page, uint16_t end_page,
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uint8_t num_types,
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const struct LogStructure *structure,
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void (*print_mode)(AP_HAL::BetterStream *port, uint8_t mode),
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AP_HAL::BetterStream *port);
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void DumpPageInfo(AP_HAL::BetterStream *port);
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void ShowDeviceInfo(AP_HAL::BetterStream *port);
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void ListAvailableLogs(AP_HAL::BetterStream *port);
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private:
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static int _write_fd;
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int _read_fd;
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uint32_t _read_offset;
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static volatile bool _initialised;
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const char *_log_directory;
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/*
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read a block
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*/
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void ReadBlock(void *pkt, uint16_t size);
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// write buffer
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static uint8_t *_writebuf;
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static const uint16_t _writebuf_size;
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static volatile uint16_t _writebuf_head;
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static volatile uint16_t _writebuf_tail;
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static uint32_t _last_write_time;
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/* construct a file name given a log number. Caller must free. */
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char *_log_file_name(uint16_t log_num);
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char *_lastlog_file_name(void);
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uint32_t _get_log_size(uint16_t log_num);
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static void _io_timer(uint32_t now);
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};
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#endif // DataFlash_File_h
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