a488c23dd5
- add netid to CaptivePortalStateChangeEvent
- add NetworkMonitorEvent for simple duration measurements
Bug: 28204408
Change-Id: I62035e07d64013878a0bce30c67c929c2c7e7a85
76 lines
2.0 KiB
Java
76 lines
2.0 KiB
Java
/*
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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.
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*/
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package android.net.util;
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import android.os.SystemClock;
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/**
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* @hide
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*/
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public class Stopwatch {
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private long mStartTimeMs;
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private long mStopTimeMs;
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public boolean isStarted() {
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return (mStartTimeMs > 0);
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}
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public boolean isStopped() {
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return (mStopTimeMs > 0);
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}
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public boolean isRunning() {
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return (isStarted() && !isStopped());
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}
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// Returning |this| makes possible the following usage pattern:
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//
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// Stopwatch s = new Stopwatch().start();
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public Stopwatch start() {
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if (!isStarted()) {
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mStartTimeMs = SystemClock.elapsedRealtime();
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}
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return this;
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}
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// Returns the total time recorded, in milliseconds, or 0 if not started.
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public long stop() {
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if (isRunning()) {
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mStopTimeMs = SystemClock.elapsedRealtime();
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}
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// Return either the delta after having stopped, or 0.
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return (mStopTimeMs - mStartTimeMs);
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}
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// Returns the total time recorded to date, in milliseconds.
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// If the Stopwatch is not running, returns the same value as stop(),
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// i.e. either the total time recorded before stopping or 0.
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public long lap() {
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if (isRunning()) {
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return (SystemClock.elapsedRealtime() - mStartTimeMs);
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} else {
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return stop();
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}
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}
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public void reset() {
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mStartTimeMs = 0;
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mStopTimeMs = 0;
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}
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}
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