WIO.hh

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#ifndef COSA_WIO_HH
#define COSA_WIO_HH

#include "Cosa/Types.h"
#include "Cosa/IOStream.hh"
#include "Cosa/Wireless.hh"

class WIO : public IOStream::Device {
public:
  static const uint8_t PAYLOAD_MAX = 30;

  WIO(Wireless::Driver* dev, uint8_t dest, uint8_t port = 0x00) :
    IOStream::Device(),
    m_ix(0),
    m_dev(dev),
    m_dest(dest),
    m_port(port)
  {
  }

  virtual int room()
  {
    return (sizeof(m_buffer) - m_ix);
  }

  virtual int putchar(char c)
  {
    m_buffer[m_ix++] = c;
    if (UNLIKELY(m_ix == sizeof(m_buffer) || c == '\n')) flush();
    return (c & 0xff);
  }

  virtual int flush()
  {
    int res = (m_dev->send(m_dest, m_port, m_buffer, m_ix) == m_ix ? 0 : -1);
    m_ix = 0;
    return (res);
  }

private:
  uint8_t m_buffer[PAYLOAD_MAX];

  uint8_t m_ix;

  Wireless::Driver* m_dev;

  uint8_t m_dest;

  uint8_t m_port;
};

#endif