1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.camera.stats.profiler; 18 19 /** 20 * A profile is the primary mechanism used to start, stop, 21 * and mark the duration of various things within a method. 22 */ 23 public interface Profile { 24 /** 25 * Start, or restart the timers associated with 26 * instance 27 */ 28 public Profile start(); 29 30 /** 31 * Mark an empty event at the current time. 32 */ 33 public void mark(); 34 35 /** 36 * Mark something at the current time. 37 */ 38 public void mark(String reason); 39 40 /** 41 * Stop the profile. 42 */ 43 public void stop(); 44 45 /** 46 * Stop the profile for a given reason. 47 */ 48 public void stop(String reason); 49 } 50
