Class CachedNanoClock

    • Field Detail

      • FIELD_UPDATER

        private static final java.util.concurrent.atomic.AtomicLongFieldUpdater<CachedNanoClockValue> FIELD_UPDATER
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    • Constructor Detail

      • CachedNanoClock

        public CachedNanoClock()
    • Method Detail

      • nanoTime

        public long nanoTime()
        The number of ticks in nanoseconds the clock has advanced since starting.

        This method can only be used to measure elapsed time and is not related to any other notion of system or wall-clock time. The value returned represents nanoseconds since some fixed but arbitrary origin time (perhaps in the future, so values may be negative). The same origin is used by all invocations of this method in an instance of a Java virtual machine; other virtual machine instances are likely to use a different origin.

        Specified by:
        nanoTime in interface NanoClock
        Returns:
        number of ticks in nanoseconds the clock has advanced since starting.
        See Also:
        System.nanoTime()
      • update

        public void update​(long timeNs)
        Update the value of the timestamp with release memory ordered semantics.
        Parameters:
        timeNs - value to update the timestamp.
      • advance

        public void advance​(long nanos)
        Advance the value of the timestamp in with release ordered semantics.
        Parameters:
        nanos - to advance the timestamp.