72 lines
2.0 KiB
Java
72 lines
2.0 KiB
Java
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/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.Wifi
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*/
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package com.android.server.wifi;
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import android.os.SystemClock;
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import javax.annotation.concurrent.ThreadSafe;
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/**
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* Wrapper class for time operations. Allows replacement of clock operations for testing.
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*/
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@ThreadSafe
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public class Clock {
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/**
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* Get the current time of the clock in milliseconds.
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*
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* @return Current time in milliseconds.
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*/
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public long getWallClockMillis() {
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return System.currentTimeMillis();
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}
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/**
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* Returns milliseconds since boot, including time spent in sleep.
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*
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* @return Current time since boot in milliseconds.
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*/
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public long getElapsedSinceBootMillis() {
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return SystemClock.elapsedRealtime();
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}
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/**
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* Returns nanoseconds since boot, including time spent in sleep.
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*
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* @return Current time since boot in nanoseconds.
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*/
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public long getElapsedSinceBootNanos() {
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return SystemClock.elapsedRealtimeNanos();
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}
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/**
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* Returns milliseconds since boot, not counting time spent in deep sleep.
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*
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* @return Milliseconds of non-sleep uptime since boot.
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*/
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public long getUptimeSinceBootMillis() {
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return SystemClock.uptimeMillis();
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}
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/**
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* Waits a given number of milliseconds (of uptimeMillis) before returning.
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*/
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public void sleep(long ms) {
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SystemClock.sleep(ms);
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}
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}
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