header_impl.h

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#ifndef INCLUDED_LORA_HEADER_IMPL_H
#define INCLUDED_LORA_HEADER_IMPL_H

#include <lora_sdr/header.h>

namespace gr {
  namespace lora_sdr {

    class header_impl : public header
    {
     private:
      bool m_impl_head; ///< indicate if the header is implicit
      bool m_has_crc; ///< indicate the presence of a payload crc
      uint8_t m_cr; ///< Transmission coding rate
      uint8_t m_payload_len; ///< Payload length
      uint m_cnt_nibbles; ///< count the processes nibbles in a frame
      uint m_cnt_header_nibbles; ///< count the number of explicit header nibbles output
      std::vector<uint8_t> m_header; ///< contain the header to prepend


      std::vector<tag_t> m_tags;
      void msg_handler(pmt::pmt_t message);

     public:
      header_impl(bool impl_head, bool has_crc, uint8_t cr);
      ~header_impl();

      void set_cr(uint8_t cr);
      uint8_t get_cr();


      void forecast (int noutput_items, gr_vector_int &ninput_items_required);

      int general_work(int noutput_items,
           gr_vector_int &ninput_items,
           gr_vector_const_void_star &input_items,
           gr_vector_void_star &output_items);

    };

  } // namespace lora
} // namespace gr

#endif /* INCLUDED_LORA_HEADER_IMPL_H */