anchor.diff:      BufHandle = make_ref(),
       call(Pid, {put_bufinf,BufHandle,BufInfo}, FileOpTimeout),
       {ok,BufHandle}.
  +
  +format_channel_start_error({shutdown, Reason}) ->
  +    Reason;
  +format_channel_start_error(Reason) ->
  +    Reason.
  
positive.code: 			    TimeOut
  		    end;
  		{error, Reason} ->
  		    {error, Reason};
  		ignore ->
  		    {error, ignore}
  	    end;
  
negative.code: 			    TimeOut
  		    end;
  		{error, Reason} ->
  		    {error, format_channel_start_error(Reason)};
  		ignore ->
  		    {error, ignore}
  	    end;
  