Scala example source code file (NanoTimer.java)

This example Scala source code file (NanoTimer.java) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Scala source code examples by using tags.

All credit for the original source code belongs to scala-lang.org; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Scala tags/keywords

actor, nanotimer, thread, threadpool

The NanoTimer.java Scala example source code

/*
 * Written by Dawid Kurzyniec and released to the public domain, as explained
 * at http://creativecommons.org/licenses/publicdomain
 */
package scala.actors.threadpool.helpers;

/**
 * Interface to specify custom implementation of precise timer.
 *
 * @author Dawid Kurzyniec
 * @version 1.0
 */
public interface NanoTimer {
    /**
     * Returns the current value of the most precise available system timer,
     * in nanoseconds. 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
     * time (perhaps in the future, so values may be negative). This method
     * provides nanosecond precision, but not necessarily nanosecond accuracy.
     * No guarantees are made about how frequently values change. Differences
     * in successive calls that span greater than approximately 292 years
     * (263 nanoseconds) will not accurately compute elapsed time due to
     * numerical overflow.
     *
     * @return The current value of the system timer, in nanoseconds.
     */
    long nanoTime();
}