示例#1
0
//Called by executeOrder
func updateStatus(currentFloor uint, status *driver.LiftStatus, motorDirectionCh chan<- driver.MotorDirection, statusCh chan<- driver.LiftStatus) {
	switch currentFloor {
	case 0:
		if status.Door {
			log.Fatal("lift should not be moving, door is open")
		}
		if !status.Running {
			log.Fatal("lift should not be moving, motor is off")
		}
		return
	case 1, 4:
		motorDirectionCh <- driver.MD_stop
		status.Floor = currentFloor
		status.Running = false
		statusCh <- *status
	case 2, 3:
		if currentFloor != status.Floor {
			status.Floor = currentFloor
			statusCh <- *status
		}
	default:
		log.Println("found unknown floor", currentFloor)
	}
}
示例#2
0
//Called by Init
func executeOrder(orderedFloorCh <-chan uint, lightCh chan<- driver.Light, statusCh chan<- driver.LiftStatus, floorSensorCh <-chan uint, doorTimerCh chan bool, motorDirectionCh chan<- driver.MotorDirection, motorStopCh chan<- bool, quitCh <-chan bool) {
	var (
		currentFloor uint
		stopFloor    uint
		status       driver.LiftStatus
	)
	status.Direction = true

	// not in state, go up until floor
	motorDirectionCh <- driver.MD_up
	for {
		currentFloor = <-floorSensorCh
		if currentFloor != 0 {
			log.Println("found floor")
			break
		}
	}
	motorDirectionCh <- driver.MD_stop
	status.Floor = currentFloor
	log.Println(currentFloor)
	status.Running = false
	status.Door = false
	statusCh <- status
	for {
		select {
		case <-quitCh:
			return
		case stopFloor = <-orderedFloorCh:
			//Got new stopFloor
		case <-doorTimerCh:
			lightCh <- driver.Light{0, driver.Door, false}
			status.Door = false
			statusCh <- status
		case currentFloor = <-floorSensorCh:
			updateStatus(currentFloor, &status, motorDirectionCh, statusCh)
		default:
			time.Sleep(5 * time.Millisecond)
			if stopFloor != 0 {
				stopAtFloor(currentFloor, &status, &stopFloor, motorDirectionCh, lightCh, statusCh, doorTimerCh, motorStopCh)
				goToFloor(currentFloor, &status, &stopFloor, motorDirectionCh, statusCh)
			}
		}
	}
}