ASIO_SYNC_OP_VOID serial_port_base::baud_rate::load()

in demo_example/asio/asio/impl/serial_port_base.ipp [127:207]

• 79 lines of code
• 33 McCabe index (conditional complexity)

ASIO_SYNC_OP_VOID serial_port_base::baud_rate::load(
    const ASIO_OPTION_STORAGE& storage, asio::error_code& ec)
{
#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
  value_ = storage.BaudRate;
#else
  speed_t baud = ::cfgetospeed(&storage);
  switch (baud)
  {
  // First do those specified by POSIX.
  case B0: value_ = 0; break;
  case B50: value_ = 50; break;
  case B75: value_ = 75; break;
  case B110: value_ = 110; break;
  case B134: value_ = 134; break;
  case B150: value_ = 150; break;
  case B200: value_ = 200; break;
  case B300: value_ = 300; break;
  case B600: value_ = 600; break;
  case B1200: value_ = 1200; break;
  case B1800: value_ = 1800; break;
  case B2400: value_ = 2400; break;
  case B4800: value_ = 4800; break;
  case B9600: value_ = 9600; break;
  case B19200: value_ = 19200; break;
  case B38400: value_ = 38400; break;
  // Now conditionally handle a bunch of extended rates.
# ifdef B7200
  case B7200: value_ = 7200; break;
# endif
# ifdef B14400
  case B14400: value_ = 14400; break;
# endif
# ifdef B57600
  case B57600: value_ = 57600; break;
# endif
# ifdef B115200
  case B115200: value_ = 115200; break;
# endif
# ifdef B230400
  case B230400: value_ = 230400; break;
# endif
# ifdef B460800
  case B460800: value_ = 460800; break;
# endif
# ifdef B500000
  case B500000: value_ = 500000; break;
# endif
# ifdef B576000
  case B576000: value_ = 576000; break;
# endif
# ifdef B921600
  case B921600: value_ = 921600; break;
# endif
# ifdef B1000000
  case B1000000: value_ = 1000000; break;
# endif
# ifdef B1152000
  case B1152000: value_ = 1152000; break;
# endif
# ifdef B2000000
  case B2000000: value_ = 2000000; break;
# endif
# ifdef B3000000
  case B3000000: value_ = 3000000; break;
# endif
# ifdef B3500000
  case B3500000: value_ = 3500000; break;
# endif
# ifdef B4000000
  case B4000000: value_ = 4000000; break;
# endif
  default:
    value_ = 0;
    ec = asio::error::invalid_argument;
    ASIO_SYNC_OP_VOID_RETURN(ec);
  }
#endif
  ec = asio::error_code();
  ASIO_SYNC_OP_VOID_RETURN(ec);
}