Class Notifier

    • Constructor Detail

      • Notifier

        public Notifier​(Runnable run)
        Create a Notifier for timer event notification.
        Parameters:
        run - The handler that is called at the notification time which is set using StartSingle or StartPeriodic.
    • Method Detail

      • setName

        public void setName​(String name)
        Sets the name of the notifier. Used for debugging purposes only.
        Parameters:
        name - Name
      • setHandler

        public void setHandler​(Runnable handler)
        Change the handler function.
        Parameters:
        handler - Handler
      • startSingle

        public void startSingle​(double delaySeconds)
        Register for single event notification. A timer event is queued for a single event after the specified delay.
        Parameters:
        delaySeconds - Seconds to wait before the handler is called.
      • startPeriodic

        public void startPeriodic​(double periodSeconds)
        Register for periodic event notification. A timer event is queued for periodic event notification. Each time the interrupt occurs, the event will be immediately requeued for the same time interval.
        Parameters:
        periodSeconds - Period in seconds to call the handler starting one period after the call to this method.
      • stop

        public void stop()
        Stop timer events from occurring. Stop any repeating timer events from occurring. This will also remove any single notification events from the queue. If a timer-based call to the registered handler is in progress, this function will block until the handler call is complete.
      • setHALThreadPriority

        public static boolean setHALThreadPriority​(boolean realTime,
                                                   int priority)
        Sets the HAL notifier thread priority.

        The HAL notifier thread is responsible for managing the FPGA's notifier interrupt and waking up user's Notifiers when it's their time to run. Giving the HAL notifier thread real-time priority helps ensure the user's real-time Notifiers, if any, are notified to run in a timely manner.

        Parameters:
        realTime - Set to true to set a real-time priority, false for standard priority.
        priority - Priority to set the thread to. For real-time, this is 1-99 with 99 being highest. For non-real-time, this is forced to 0. See "man 7 sched" for more details.
        Returns:
        True on success.