1 /* 2 * Copyright (C) 2016 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 android.os.health; 18 19 /** 20 * Keys for {@link HealthStats} returned from 21 * {@link HealthStats#getStats(int) HealthStats.getStats(int)} with the 22 * {@link UidHealthStats#STATS_PIDS UidHealthStats.STATS_PIDS} key. 23 * <p> 24 * The values coming from PidHealthStats are a little bit different from 25 * the other HealthStats values. These values are not aggregate or historical 26 * values, but instead live values from when the snapshot is taken. These 27 * tend to be more useful in debugging rogue processes than in gathering 28 * aggregate metrics across the fleet of devices. 29 */ 30 public final class PidHealthStats { 31 32 private PidHealthStats() { 33 } 34 35 /** 36 * Key for a measurement of the current nesting depth of wakelocks for this process. 37 * That is to say, the number of times a nested wakelock has been started but not 38 * stopped. A high number here indicates an improperly paired wakelock acquire/release 39 * combination. 40 * <p> 41 * More details on the individual wake locks is available 42 * by getting the {@link UidHealthStats#TIMERS_WAKELOCKS_FULL}, 43 * {@link UidHealthStats#TIMERS_WAKELOCKS_PARTIAL}, 44 * {@link UidHealthStats#TIMERS_WAKELOCKS_WINDOW} 45 * and {@link UidHealthStats#TIMERS_WAKELOCKS_DRAW} keys. 46 */ 47 @HealthKeys.Constant(type=HealthKeys.TYPE_MEASUREMENT) 48 public static final int MEASUREMENT_WAKE_NESTING_COUNT = HealthKeys.BASE_PID + 1; 49 50 /** 51 * Key for a measurement of the total number of milleseconds that this process 52 * has held a wake lock. 53 * <p> 54 * More details on the individual wake locks is available 55 * by getting the {@link UidHealthStats#TIMERS_WAKELOCKS_FULL}, 56 * {@link UidHealthStats#TIMERS_WAKELOCKS_PARTIAL}, 57 * {@link UidHealthStats#TIMERS_WAKELOCKS_WINDOW} 58 * and {@link UidHealthStats#TIMERS_WAKELOCKS_DRAW} keys. 59 */ 60 @HealthKeys.Constant(type=HealthKeys.TYPE_MEASUREMENT) 61 public static final int MEASUREMENT_WAKE_SUM_MS = HealthKeys.BASE_PID + 2; 62 63 /** 64 * Key for a measurement of the time in the {@link android.os.SystemClock#elapsedRealtime} 65 * timebase that a wakelock was first acquired in this process. 66 * <p> 67 * More details on the individual wake locks is available 68 * by getting the {@link UidHealthStats#TIMERS_WAKELOCKS_FULL}, 69 * {@link UidHealthStats#TIMERS_WAKELOCKS_PARTIAL}, 70 * {@link UidHealthStats#TIMERS_WAKELOCKS_WINDOW} 71 * and {@link UidHealthStats#TIMERS_WAKELOCKS_DRAW} keys. 72 */ 73 @HealthKeys.Constant(type=HealthKeys.TYPE_MEASUREMENT) 74 public static final int MEASUREMENT_WAKE_START_MS = HealthKeys.BASE_PID + 3; 75 76 /** 77 * @hide 78 */ 79 public static final HealthKeys.Constants CONSTANTS = new HealthKeys.Constants(PidHealthStats.class); 80 } 81
