Provides the Java interface to a native monotonic clock source. This
monotonic clock variant makes use of a native monotonic clock source provided
by the underlying hardware. Since the implementation of the native clock
source will be platform specific, there is no standard native library to
accompany this class definition.
Gets the elapsed time since the monotonic clock source was initialised.
This method is called in order to obtain the current time, defined as the
integer number of milliseconds since the monotonic clock source was
Initialises the monotonic clock source. This method is called on startup by
the reactor in order to initialise the timebase clock. It resets the
current clock time value to 0 and then sets the timer counter running.