Client and backend. This class is shared: the same code is compiled into your app and into your server, so everything on this page works in both.

public final class Watchdog

Object
Watchdog

The hardware watchdog, opened through Hardware.openWatchdog(int).

Once open, the device resets unless kick() is called within the timeout. Kick it from a timer that only runs while the application is healthy, so a hung event dispatch thread causes a reset:

try {
    final Watchdog wd = Hardware.getInstance().openWatchdog(15);
    UITimer.timer(5000, true, Display.getInstance().getCurrent(), () -> wd.kickQuietly());
} catch (HardwareException e) {
    Log.e(e);
}

Methods

`public void kick() throwsHardwareException`	Restarts the countdown.
`public void kickQuietly()`	`kick()`, ignoring failures, for use from a timer.
`public void close(boolean disarm)`	Closes the watchdog.

Inherited methods

From Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait, clone, finalize

Method details

kick

public void kick()
throws HardwareException

Restarts the countdown.

Throws

HardwareException: when the watchdog is closed or the kick fails

kickQuietly

public void kickQuietly()

kick(), ignoring failures, for use from a timer.

close

public void close(boolean disarm)

Closes the watchdog. With disarm the timer stops where the driver allows it; without, the device resets when the timeout runs out, which is the right choice on the way down after an unrecoverable error.