/* * Copyright (C) 2014 The Android Open Source Project * * 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 * * http://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 dexfuzz; import dexfuzz.listeners.BaseListener; /** * For timing splits of program execution. */ public class Timer { /** * The name of the timer, the phase of the program it is intended to time. */ private String name; /** * A point in time remembered when start() is called. */ private long startPoint; /** * A cumulative count of how much time has elapsed. Updated each time * stop() is called. */ private long elapsedTime; /** * Initialise a new timer with the provided name. */ public Timer(String name) { this.name = name; this.elapsedTime = 0L; } /** * Start timing. */ public void start() { startPoint = System.currentTimeMillis(); } /** * Stop timing, update how much time has elapsed. */ public void stop() { long endPoint = System.currentTimeMillis(); elapsedTime += (endPoint - startPoint); } /** * Log the elapsed time this timer has recorded. */ public void printTime(BaseListener listener) { listener.handleTiming(name, ((float)elapsedTime) / 1000.0f); } }