public void enableReceiveTimeout( int time )
public void enableReceiveTimeout( int time ) throws UnsupportedCommOperationException
	public void enableReceiveTimeout( int time )	{		if (fd == 0 )			throw new IllegalStateException("No File Descriptor");		if( time >= 0 )		{			timeout = time;			NativeEnableReceiveTimeoutThreshold( time , threshold,				InputBuffer );		}		else		{			throw new IllegalArgumentException			(				"Unexpected negative timeout value"			);		}	}