Method checkoutFreeChannel

OpenHD/ohd_telemetry/src/endpoints/MEndpoint.cpp:119–126

}

int MEndpoint::checkoutFreeChannel() {
  static std::mutex _channels_used_mutex;
  static int channel_idx = 0;
  std::lock_guard<std::mutex> lock(_channels_used_mutex);
  int ret = channel_idx;
  channel_idx++;
  return ret;
}