com.esf.device.watchdog.service

Interface IWatchdogService

public interface IWatchdogService

This interface provides methods for starting, stopping, and updating a hardware watchdog present on the system. Updating the watchdog, once started, prevents the system from rebooting.

Author:

chad.kienle

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	SERVICE_NAME Reports the class name representing this interface.

Method Summary

Methods

Modifier and Type	Method and Description
short	getDefaultTimeout() Returns the default timeout value of the hardware watchdog.
short	getTimeout() Returns the timeout value for the hardware watchdog in increments of 100ms.
void	setTimeout(short timeout) Sets the current timeout value for the underlying hardware watchdog.
void	startWatchdog() Starts the hardware watchdog on the device.
void	stopWatchdog() Stops the hardware Watchdog on the device
void	updateWatchdog() Updates the Watchdog to prevent a system reboot by resetting the timer

Field Detail

SERVICE_NAME

static final java.lang.String SERVICE_NAME

Reports the class name representing this interface.

Method Detail

startWatchdog

void startWatchdog()

Starts the hardware watchdog on the device. If a timeout value has not been set, the watchdog will use its default timeout.

stopWatchdog

void stopWatchdog()

Stops the hardware Watchdog on the device

updateWatchdog

void updateWatchdog()

Updates the Watchdog to prevent a system reboot by resetting the timer

getTimeout

short getTimeout()

Returns the timeout value for the hardware watchdog in increments of 100ms.

Returns:

A short representing the hardware timeout value.

getDefaultTimeout

short getDefaultTimeout()

Returns the default timeout value of the hardware watchdog.

Returns:

A short representing the hardware watchdog's default timeout.

setTimeout

void setTimeout(short timeout)

Sets the current timeout value for the underlying hardware watchdog. When setting the timeout after the watchdog has been started the count will be reset. The timeout value should be specified in increments of 100 milliseconds. For example: A timeout value of 20 would be 2000 milliseconds.

Parameters:

timeout - A short representing the new timeout value in increments of 100ms.

Throws:

java.lang.Exception - throws an Exception if the supplied timeout is not valid.