nachos.machine
Interface ElevatorControllerInterface

All Superinterfaces:

Runnable

All Known Implementing Classes:

ElevatorController

public interface ElevatorControllerInterface
extends Runnable

A controller for all the elevators in an elevator bank. The controller accesses the elevator bank through an instance of ElevatorControls.

Field Summary

static int	dirDown Indicates an elevator intends to move down.
static int	dirNeither Indicates an elevator intends not to move.
static int	dirUp Indicates an elevator intends to move up.
static int	timeDoorsOpen The number of ticks doors should be held open before closing them.

Method Summary

void	initialize(ElevatorControls controls) Initialize this elevator controller.
void	run() Cause the controller to use the provided controls to receive and process requests from riders.

Field Detail

timeDoorsOpen

static final int timeDoorsOpen

The number of ticks doors should be held open before closing them.

See Also:

Constant Field Values

dirDown

static final int dirDown

Indicates an elevator intends to move down.

See Also:

Constant Field Values

dirNeither

static final int dirNeither

Indicates an elevator intends not to move.

See Also:

Constant Field Values

dirUp

static final int dirUp

Indicates an elevator intends to move up.

See Also:

Constant Field Values

Method Detail

initialize

void initialize(ElevatorControls controls)

Initialize this elevator controller. The controller will access the elevator bank through controls. This constructor should return immediately after this controller is initialized, but not until the interupt handler is set. The controller will start receiving events after this method returns, but potentially before run() is called.

Parameters:

controls - the controller's interface to the elevator bank. The controller must not attempt to access the elevator bank in any other way.

run

void run()

Cause the controller to use the provided controls to receive and process requests from riders. This method should not return, but instead should call controls.finish() when the controller is finished.

Specified by:

run in interface Runnable