| /* |
| * Copyright (C) 2008 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. |
| */ |
| |
| import java.io.IOException; |
| import java.io.Writer; |
| import java.io.BufferedWriter; |
| import java.io.OutputStreamWriter; |
| import java.io.FileOutputStream; |
| import java.nio.charset.Charset; |
| import java.util.Set; |
| import java.util.TreeSet; |
| import java.util.List; |
| |
| /** |
| * Writes /java/android/preloaded-classes. Also updates LoadedClass.preloaded |
| * fields and writes over compiled log file. |
| */ |
| public class WritePreloadedClassFile { |
| |
| private static final String PRELOADED_CLASS_FILE |
| = "java/android/preloaded-classes"; |
| |
| public static void main(String[] args) |
| throws IOException, ClassNotFoundException { |
| if (args.length != 1) { |
| System.err.println( |
| "Usage: WritePreloadedClassFile [compiled log file]"); |
| System.exit(0); |
| } |
| |
| Root root = Root.fromFile(args[0]); |
| |
| for (LoadedClass loadedClass : root.loadedClasses.values()) { |
| loadedClass.preloaded = false; |
| } |
| |
| Writer out = new BufferedWriter(new OutputStreamWriter( |
| new FileOutputStream(PRELOADED_CLASS_FILE), |
| Charset.forName("US-ASCII"))); |
| |
| out.write("# Classes which are preloaded by " + |
| "com.android.internal.os.ZygoteInit.\n"); |
| out.write("# Automatically generated by /tools/preload.\n"); |
| out.write("# percent=" + Proc.PERCENTAGE_TO_PRELOAD + ", weight=" |
| + ClassRank.SEQUENCE_WEIGHT |
| + ", bucket_size=" + ClassRank.BUCKET_SIZE |
| + "\n"); |
| |
| Set<LoadedClass> highestRanked = new TreeSet<LoadedClass>(); |
| for (Proc proc : root.processes.values()) { |
| List<LoadedClass> highestForProc = proc.highestRankedClasses(); |
| |
| System.out.println(proc.name + ": " + highestForProc.size()); |
| |
| for (LoadedClass loadedClass : highestForProc) { |
| loadedClass.preloaded = true; |
| } |
| highestRanked.addAll(highestForProc); |
| } |
| |
| for (LoadedClass loadedClass : highestRanked) { |
| out.write(loadedClass.name); |
| out.write('\n'); |
| } |
| |
| out.close(); |
| |
| System.out.println(highestRanked.size() |
| + " classes will be preloaded."); |
| |
| // Update data to reflect LoadedClass.preloaded changes. |
| root.toFile(args[0]); |
| } |
| } |