de.cuioss.tools.concurrent.Ticker Maven / Gradle / Ivy
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/*
* Copyright 2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package de.cuioss.tools.concurrent;
import java.io.Serializable;
/**
* A time source; returns a time value representing the number of nanoseconds
* elapsed since some fixed but arbitrary point in time. Note that most users
* should use {@link StopWatch} instead of interacting with this class directly.
*
*
* Warning: this type can only be used to measure elapsed time, not wall
* time.
*
* @author com.google.common.base.Ticker
*/
public class Ticker implements Serializable {
private static final long serialVersionUID = -1361587646696392654L;
/**
* @return the number of nanoseconds elapsed since this ticker's fixed point of
* reference.
*/
public long read() {
return System.nanoTime();
}
}