/// <summary>
/// get number of packages in ringbuffer
/// </summary>
/// <returns>number of packages</returns>
public int get_board_data_count ()
{
int[] res = new int[1];
int ec = BoardControllerLibrary.get_board_data_count (res, board_id, input_json);
if (ec != (int) CustomExitCodes.STATUS_OK)
{
throw new BrainFlowException (ec);
}
return res[0];
}