package com.serenegiant.utils;

import android.annotation.SuppressLint;
import android.os.SystemClock;

public class Time {

	public static boolean prohibitElapsedRealtimeNanos = true;

	private static Time sTime;
	static {
		reset();
	}

	public static long nanoTime() {
		return sTime.timeNs();
	}
	
	public static void reset() {
		if (!prohibitElapsedRealtimeNanos && BuildCheck.isJellyBeanMr1()) {
			sTime = new TimeJellyBeanMr1();
		} else {
			sTime = new Time();
		}
	}
	
	private Time() {
	}
	
	@SuppressLint("NewApi")
	private static class TimeJellyBeanMr1 extends Time {
		public long timeNs() {
			return SystemClock.elapsedRealtimeNanos();
		}
	}
	
	protected long timeNs() {
		return System.nanoTime();
	}
}