include/marnav-io/nmea_reader.hpp

   1 #ifndef MARNAV_IO_NMEA_READER_HPP
   2 #define MARNAV_IO_NMEA_READER_HPP
   3
   4 #include <marnav-io/device.hpp>
   5 #include <marnav/nmea/sentence.hpp>
   6
   7 namespace marnav
   8 {
   9 namespace io
  10 {
  11 /// This class reads NMEA sentences from a device. Normally this would
  12 /// be a serial character device (e.g. \c /dev/ttyS0 or \c /dev/ttyUSB0).
  13 ///
  14 /// In order to use this NMEA reader, it must be subclassed.
  15 ///
  16 /// This reader opens the device upon construction.
  17 ///
  18 class nmea_reader
  19 {
  20 public:
  21         virtual ~nmea_reader();
  22
  23         nmea_reader(std::unique_ptr<device> && d);
  24         nmea_reader(const nmea_reader &) = delete;
  25         nmea_reader(nmea_reader &&) = default;
  26
  27         nmea_reader & operator=(const nmea_reader &) = delete;
  28         nmea_reader & operator=(nmea_reader &&) = default;
  29
  30         void close();
  31         bool read();
  32
  33 protected:
  34         virtual void process_sentence(const std::string &) = 0;
  35
  36 private:
  37         void process_nmea();
  38         bool read_data();
  39
  40         char raw_;
  41         std::string sentence_;
  42         std::unique_ptr<device> dev_; ///< Device to read data from.
  43 };
  44 }
  45 }
  46
  47 #endif