Andreas Gampe | 554d7ee | 2015-09-15 08:57:12 -0700 | [diff] [blame] | 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.preload.classdataretrieval.hprof; |
| 18 | |
| 19 | import com.android.ddmlib.Client; |
| 20 | import com.android.ddmlib.ClientData; |
| 21 | import com.android.ddmlib.ClientData.IHprofDumpHandler; |
| 22 | import com.android.preload.classdataretrieval.ClassDataRetriever; |
| 23 | import com.android.preload.ui.NullProgressMonitor; |
| 24 | import com.android.tools.perflib.captures.MemoryMappedFileBuffer; |
| 25 | import com.android.tools.perflib.heap.ClassObj; |
| 26 | import com.android.tools.perflib.heap.Queries; |
| 27 | import com.android.tools.perflib.heap.Snapshot; |
| 28 | |
| 29 | import java.io.BufferedOutputStream; |
| 30 | import java.io.File; |
| 31 | import java.io.FileOutputStream; |
| 32 | import java.util.HashMap; |
| 33 | import java.util.Map; |
| 34 | import java.util.Set; |
| 35 | |
| 36 | public class Hprof implements ClassDataRetriever { |
| 37 | |
| 38 | private static GeneralHprofDumpHandler hprofHandler; |
| 39 | |
| 40 | public static void init() { |
| 41 | synchronized(Hprof.class) { |
| 42 | if (hprofHandler == null) { |
| 43 | ClientData.setHprofDumpHandler(hprofHandler = new GeneralHprofDumpHandler()); |
| 44 | } |
| 45 | } |
| 46 | } |
| 47 | |
| 48 | public static File doHprof(Client client, int timeout) { |
| 49 | GetHprof gh = new GetHprof(client, timeout); |
| 50 | return gh.get(); |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * Return a map of class names to class-loader names derived from the hprof dump. |
| 55 | * |
| 56 | * @param hprofLocalFile |
| 57 | */ |
| 58 | public static Map<String, String> analyzeHprof(File hprofLocalFile) throws Exception { |
| 59 | Snapshot snapshot = Snapshot.createSnapshot(new MemoryMappedFileBuffer(hprofLocalFile)); |
| 60 | |
| 61 | Map<String, Set<ClassObj>> classes = Queries.classes(snapshot, null); |
| 62 | Map<String, String> retValue = new HashMap<String, String>(); |
| 63 | for (Map.Entry<String, Set<ClassObj>> e : classes.entrySet()) { |
| 64 | for (ClassObj c : e.getValue()) { |
| 65 | String cl = c.getClassLoader() == null ? null : c.getClassLoader().toString(); |
| 66 | String cName = c.getClassName(); |
| 67 | int aDepth = 0; |
| 68 | while (cName.endsWith("[]")) { |
| 69 | cName = cName.substring(0, cName.length()-2); |
| 70 | aDepth++; |
| 71 | } |
| 72 | String newName = transformPrimitiveClass(cName); |
| 73 | if (aDepth > 0) { |
| 74 | // Need to use kind-a descriptor syntax. If it was transformed, it is primitive. |
| 75 | if (newName.equals(cName)) { |
| 76 | newName = "L" + newName + ";"; |
| 77 | } |
| 78 | for (int i = 0; i < aDepth; i++) { |
| 79 | newName = "[" + newName; |
| 80 | } |
| 81 | } |
| 82 | retValue.put(newName, cl); |
| 83 | } |
| 84 | } |
| 85 | |
| 86 | // Free up memory. |
| 87 | snapshot.dispose(); |
| 88 | |
| 89 | return retValue; |
| 90 | } |
| 91 | |
| 92 | private static Map<String, String> primitiveMapping; |
| 93 | |
| 94 | static { |
| 95 | primitiveMapping = new HashMap<>(); |
| 96 | primitiveMapping.put("boolean", "Z"); |
| 97 | primitiveMapping.put("byte", "B"); |
| 98 | primitiveMapping.put("char", "C"); |
| 99 | primitiveMapping.put("double", "D"); |
| 100 | primitiveMapping.put("float", "F"); |
| 101 | primitiveMapping.put("int", "I"); |
| 102 | primitiveMapping.put("long", "J"); |
| 103 | primitiveMapping.put("short", "S"); |
| 104 | primitiveMapping.put("void", "V"); |
| 105 | } |
| 106 | |
| 107 | private static String transformPrimitiveClass(String name) { |
| 108 | String rep = primitiveMapping.get(name); |
| 109 | if (rep != null) { |
| 110 | return rep; |
| 111 | } |
| 112 | return name; |
| 113 | } |
| 114 | |
| 115 | private static class GetHprof implements IHprofDumpHandler { |
| 116 | |
| 117 | private File target; |
| 118 | private long timeout; |
| 119 | private Client client; |
| 120 | |
| 121 | public GetHprof(Client client, long timeout) { |
| 122 | this.client = client; |
| 123 | this.timeout = timeout; |
| 124 | } |
| 125 | |
| 126 | public File get() { |
| 127 | synchronized (this) { |
| 128 | hprofHandler.addHandler(this); |
| 129 | client.dumpHprof(); |
| 130 | if (target == null) { |
| 131 | try { |
| 132 | wait(timeout); |
| 133 | } catch (Exception e) { |
| 134 | System.out.println(e); |
| 135 | } |
| 136 | } |
| 137 | } |
| 138 | |
| 139 | hprofHandler.removeHandler(this); |
| 140 | return target; |
| 141 | } |
| 142 | |
| 143 | private void wakeUp() { |
| 144 | synchronized (this) { |
| 145 | notifyAll(); |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | @Override |
| 150 | public void onEndFailure(Client arg0, String arg1) { |
| 151 | System.out.println("GetHprof.onEndFailure"); |
| 152 | if (client == arg0) { |
| 153 | wakeUp(); |
| 154 | } |
| 155 | } |
| 156 | |
| 157 | private static File createTargetFile() { |
| 158 | try { |
| 159 | return File.createTempFile("ddms", ".hprof"); |
| 160 | } catch (Exception e) { |
| 161 | throw new RuntimeException(e); |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | @Override |
| 166 | public void onSuccess(String arg0, Client arg1) { |
| 167 | System.out.println("GetHprof.onSuccess"); |
| 168 | if (client == arg1) { |
| 169 | try { |
| 170 | target = createTargetFile(); |
| 171 | arg1.getDevice().getSyncService().pullFile(arg0, |
| 172 | target.getAbsoluteFile().toString(), new NullProgressMonitor()); |
| 173 | } catch (Exception e) { |
| 174 | e.printStackTrace(); |
| 175 | target = null; |
| 176 | } |
| 177 | wakeUp(); |
| 178 | } |
| 179 | } |
| 180 | |
| 181 | @Override |
| 182 | public void onSuccess(byte[] arg0, Client arg1) { |
| 183 | System.out.println("GetHprof.onSuccess"); |
| 184 | if (client == arg1) { |
| 185 | try { |
| 186 | target = createTargetFile(); |
| 187 | BufferedOutputStream out = |
| 188 | new BufferedOutputStream(new FileOutputStream(target)); |
| 189 | out.write(arg0); |
| 190 | out.close(); |
| 191 | } catch (Exception e) { |
| 192 | e.printStackTrace(); |
| 193 | target = null; |
| 194 | } |
| 195 | wakeUp(); |
| 196 | } |
| 197 | } |
| 198 | } |
| 199 | |
| 200 | private int timeout; |
| 201 | |
| 202 | public Hprof(int timeout) { |
| 203 | this.timeout = timeout; |
| 204 | } |
| 205 | |
| 206 | @Override |
| 207 | public Map<String, String> getClassData(Client client) { |
| 208 | File hprofLocalFile = Hprof.doHprof(client, timeout); |
| 209 | if (hprofLocalFile == null) { |
| 210 | throw new RuntimeException("Failed getting dump..."); |
| 211 | } |
| 212 | System.out.println("Dump file is " + hprofLocalFile); |
| 213 | |
| 214 | try { |
| 215 | return analyzeHprof(hprofLocalFile); |
| 216 | } catch (Exception e) { |
| 217 | throw new RuntimeException(e); |
| 218 | } |
| 219 | } |
| 220 | } |