1282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski/* 2282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski * Copyright (C) 2008 The Android Open Source Project 3282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski * 4282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski * Licensed under the Apache License, Version 2.0 (the "License"); 5282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski * you may not use this file except in compliance with the License. 6282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski * You may obtain a copy of the License at 7282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski * 8282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski * http://www.apache.org/licenses/LICENSE-2.0 9282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski * 10282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski * Unless required by applicable law or agreed to in writing, software 11282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski * distributed under the License is distributed on an "AS IS" BASIS, 12282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski * See the License for the specific language governing permissions and 14282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski * limitations under the License. 15282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski */ 16282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 17282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskiimport java.util.Arrays; 18282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskiimport java.util.HashSet; 19282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskiimport java.util.Set; 20282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 21282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski/** 22282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski * Policy that governs which classes are preloaded. 23282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski */ 24282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskipublic class Policy { 25282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 26282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski /** 27282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski * No constructor - use static methods only 28282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski */ 29282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski private Policy() {} 30282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 31282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski /** 32282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski * This location (in the build system) of the preloaded-classes file. 33282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski */ 34282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski static final String PRELOADED_CLASS_FILE 35282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski = "frameworks/base/preloaded-classes"; 36282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 37282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski /** 38282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski * Long running services. These are restricted in their contribution to the 39282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski * preloader because their launch time is less critical. 40282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski */ 41282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // TODO: Generate this automatically from package manager. 42282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski private static final Set<String> SERVICES = new HashSet<String>(Arrays.asList( 43282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "system_server", 44282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "com.google.process.content", 45282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "android.process.media", 46282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "com.android.bluetooth", 47282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "com.android.calendar", 48282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "com.android.inputmethod.latin", 49282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "com.android.phone", 50282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "com.google.android.apps.maps.FriendService", // pre froyo 51282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "com.google.android.apps.maps:FriendService", // froyo 52282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "com.google.android.apps.maps.LocationFriendService", 53282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "com.google.android.deskclock", 54282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "com.google.process.gapps", 55282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "android.tts" 56282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski )); 57282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 58282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski /** 59282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski * Classes which we shouldn't load from the Zygote. 60282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski */ 61282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski private static final Set<String> EXCLUDED_CLASSES 62282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski = new HashSet<String>(Arrays.asList( 63282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Binders 64282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "android.app.AlarmManager", 65282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "android.app.SearchManager", 66282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "android.os.FileObserver", 67282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "com.android.server.PackageManagerService$AppDirObserver", 68282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 69282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Threads 70282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "android.os.AsyncTask", 71282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "android.pim.ContactsAsyncHelper", 72282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "android.webkit.WebViewClassic$1", 73282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "java.lang.ProcessManager" 74282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski )); 75282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 76282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski /** 77282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski * Returns true if the given process name is a "long running" process or 78282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski * service. 79282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski */ 80282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski public static boolean isService(String processName) { 81282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return SERVICES.contains(processName); 82282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 83282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 84282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski /** Reports if the given class should be preloaded. */ 85282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski public static boolean isPreloadable(LoadedClass clazz) { 86282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return clazz.systemClass && !EXCLUDED_CLASSES.contains(clazz.name) 87282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski && !clazz.name.endsWith("$NoPreloadHolder"); 88282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 89282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski} 90