SystemServer.java revision afefa49abce3a1f8dd64644009f73aaeea86d7e0
1/* 2 * Copyright (C) 2006 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 17package com.android.server; 18 19import com.android.server.am.ActivityManagerService; 20import com.android.server.status.StatusBarService; 21 22import dalvik.system.PathClassLoader; 23import dalvik.system.VMRuntime; 24 25import android.app.ActivityManagerNative; 26import android.content.ComponentName; 27import android.content.ContentResolver; 28import android.content.ContentService; 29import android.content.Context; 30import android.content.Intent; 31import android.content.pm.IPackageManager; 32import android.database.ContentObserver; 33import android.database.Cursor; 34import android.media.AudioService; 35import android.os.*; 36import android.provider.Contacts.People; 37import android.provider.Settings; 38import android.server.BluetoothA2dpService; 39import android.server.BluetoothDeviceService; 40import android.server.search.SearchManagerService; 41import android.util.EventLog; 42import android.util.Log; 43import android.accounts.AccountManagerService; 44 45import java.lang.reflect.Constructor; 46import java.lang.reflect.InvocationTargetException; 47 48class ServerThread extends Thread { 49 private static final String TAG = "SystemServer"; 50 private final static boolean INCLUDE_DEMO = false; 51 52 private static final int LOG_BOOT_PROGRESS_SYSTEM_RUN = 3010; 53 54 private ContentResolver mContentResolver; 55 56 private class AdbSettingsObserver extends ContentObserver { 57 public AdbSettingsObserver() { 58 super(null); 59 } 60 @Override 61 public void onChange(boolean selfChange) { 62 boolean enableAdb = (Settings.Secure.getInt(mContentResolver, 63 Settings.Secure.ADB_ENABLED, 0) > 0); 64 // setting this secure property will start or stop adbd 65 SystemProperties.set("persist.service.adb.enable", enableAdb ? "1" : "0"); 66 } 67 } 68 69 @Override 70 public void run() { 71 EventLog.writeEvent(LOG_BOOT_PROGRESS_SYSTEM_RUN, 72 SystemClock.uptimeMillis()); 73 74 ActivityManagerService.prepareTraceFile(false); // create dir 75 76 Looper.prepare(); 77 78 android.os.Process.setThreadPriority( 79 android.os.Process.THREAD_PRIORITY_FOREGROUND); 80 81 String factoryTestStr = SystemProperties.get("ro.factorytest"); 82 int factoryTest = "".equals(factoryTestStr) ? SystemServer.FACTORY_TEST_OFF 83 : Integer.parseInt(factoryTestStr); 84 85 HardwareService hardware = null; 86 PowerManagerService power = null; 87 IPackageManager pm = null; 88 Context context = null; 89 WindowManagerService wm = null; 90 BluetoothDeviceService bluetooth = null; 91 BluetoothA2dpService bluetoothA2dp = null; 92 HeadsetObserver headset = null; 93 94 // Critical services... 95 try { 96 Log.i(TAG, "Starting Entropy Service."); 97 ServiceManager.addService("entropy", new EntropyService()); 98 99 Log.i(TAG, "Starting Power Manager."); 100 power = new PowerManagerService(); 101 ServiceManager.addService(Context.POWER_SERVICE, power); 102 103 Log.i(TAG, "Starting Activity Manager."); 104 context = ActivityManagerService.main(factoryTest); 105 106 Log.i(TAG, "Starting telephony registry"); 107 ServiceManager.addService("telephony.registry", new TelephonyRegistry(context)); 108 109 AttributeCache.init(context); 110 111 Log.i(TAG, "Starting Package Manager."); 112 pm = PackageManagerService.main(context, 113 factoryTest != SystemServer.FACTORY_TEST_OFF); 114 115 ActivityManagerService.setSystemProcess(); 116 117 mContentResolver = context.getContentResolver(); 118 119 try { 120 Log.i(TAG, "Starting Account Manager."); 121 ServiceManager.addService(Context.ACCOUNT_SERVICE, 122 new AccountManagerService(context)); 123 } catch (Throwable e) { 124 Log.e(TAG, "Failure starting Account Manager", e); 125 } 126 127 Log.i(TAG, "Starting Content Manager."); 128 ContentService.main(context, 129 factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL); 130 131 Log.i(TAG, "Starting System Content Providers."); 132 ActivityManagerService.installSystemProviders(); 133 134 Log.i(TAG, "Starting Battery Service."); 135 BatteryService battery = new BatteryService(context); 136 ServiceManager.addService("battery", battery); 137 138 Log.i(TAG, "Starting Hardware Service."); 139 hardware = new HardwareService(context); 140 ServiceManager.addService("hardware", hardware); 141 142 // only initialize the power service after we have started the 143 // hardware service, content providers and the battery service. 144 power.init(context, hardware, ActivityManagerService.getDefault(), battery); 145 146 Log.i(TAG, "Starting Alarm Manager."); 147 AlarmManagerService alarm = new AlarmManagerService(context); 148 ServiceManager.addService(Context.ALARM_SERVICE, alarm); 149 150 Watchdog.getInstance().init(context, battery, power, alarm, 151 ActivityManagerService.self()); 152 153 // Sensor Service is needed by Window Manager, so this goes first 154 Log.i(TAG, "Starting Sensor Service."); 155 ServiceManager.addService(Context.SENSOR_SERVICE, new SensorService(context)); 156 157 Log.i(TAG, "Starting Window Manager."); 158 wm = WindowManagerService.main(context, power, 159 factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL); 160 ServiceManager.addService(Context.WINDOW_SERVICE, wm); 161 162 ((ActivityManagerService)ServiceManager.getService("activity")) 163 .setWindowManager(wm); 164 165 // Skip Bluetooth if we have an emulator kernel 166 // TODO: Use a more reliable check to see if this product should 167 // support Bluetooth - see bug 988521 168 if (SystemProperties.get("ro.kernel.qemu").equals("1")) { 169 Log.i(TAG, "Registering null Bluetooth Service (emulator)"); 170 ServiceManager.addService(Context.BLUETOOTH_SERVICE, null); 171 } else if (factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL) { 172 Log.i(TAG, "Registering null Bluetooth Service (factory test)"); 173 ServiceManager.addService(Context.BLUETOOTH_SERVICE, null); 174 } else { 175 Log.i(TAG, "Starting Bluetooth Service."); 176 bluetooth = new BluetoothDeviceService(context); 177 bluetooth.init(); 178 ServiceManager.addService(Context.BLUETOOTH_SERVICE, bluetooth); 179 bluetoothA2dp = new BluetoothA2dpService(context, bluetooth); 180 ServiceManager.addService(BluetoothA2dpService.BLUETOOTH_A2DP_SERVICE, 181 bluetoothA2dp); 182 183 int bluetoothOn = Settings.Secure.getInt(mContentResolver, 184 Settings.Secure.BLUETOOTH_ON, 0); 185 if (bluetoothOn > 0) { 186 bluetooth.enable(); 187 } 188 } 189 190 } catch (RuntimeException e) { 191 Log.e("System", "Failure starting core service", e); 192 } 193 194 StatusBarService statusBar = null; 195 InputMethodManagerService imm = null; 196 AppWidgetService appWidget = null; 197 NotificationManagerService notification = null; 198 199 if (factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL) { 200 try { 201 Log.i(TAG, "Starting Status Bar Service."); 202 statusBar = new StatusBarService(context); 203 ServiceManager.addService("statusbar", statusBar); 204 } catch (Throwable e) { 205 Log.e(TAG, "Failure starting StatusBarService", e); 206 } 207 208 try { 209 Log.i(TAG, "Starting Clipboard Service."); 210 ServiceManager.addService("clipboard", new ClipboardService(context)); 211 } catch (Throwable e) { 212 Log.e(TAG, "Failure starting Clipboard Service", e); 213 } 214 215 try { 216 Log.i(TAG, "Starting Input Method Service."); 217 imm = new InputMethodManagerService(context, statusBar); 218 ServiceManager.addService(Context.INPUT_METHOD_SERVICE, imm); 219 } catch (Throwable e) { 220 Log.e(TAG, "Failure starting Input Manager Service", e); 221 } 222 223 try { 224 Log.i(TAG, "Starting NetStat Service."); 225 ServiceManager.addService("netstat", new NetStatService(context)); 226 } catch (Throwable e) { 227 Log.e(TAG, "Failure starting NetStat Service", e); 228 } 229 230 try { 231 Log.i(TAG, "Starting Connectivity Service."); 232 ServiceManager.addService(Context.CONNECTIVITY_SERVICE, 233 ConnectivityService.getInstance(context)); 234 } catch (Throwable e) { 235 Log.e(TAG, "Failure starting Connectivity Service", e); 236 } 237 238 try { 239 Log.i(TAG, "Starting Accessibility Manager."); 240 ServiceManager.addService(Context.ACCESSIBILITY_SERVICE, 241 new AccessibilityManagerService(context)); 242 } catch (Throwable e) { 243 Log.e(TAG, "Failure starting Accessibility Manager", e); 244 } 245 246 try { 247 Log.i(TAG, "Starting Notification Manager."); 248 notification = new NotificationManagerService(context, statusBar, hardware); 249 ServiceManager.addService(Context.NOTIFICATION_SERVICE, notification); 250 } catch (Throwable e) { 251 Log.e(TAG, "Failure starting Notification Manager", e); 252 } 253 254 try { 255 // MountService must start after NotificationManagerService 256 Log.i(TAG, "Starting Mount Service."); 257 ServiceManager.addService("mount", new MountService(context)); 258 } catch (Throwable e) { 259 Log.e(TAG, "Failure starting Mount Service", e); 260 } 261 262 try { 263 Log.i(TAG, "Starting DeviceStorageMonitor service"); 264 ServiceManager.addService(DeviceStorageMonitorService.SERVICE, 265 new DeviceStorageMonitorService(context)); 266 } catch (Throwable e) { 267 Log.e(TAG, "Failure starting DeviceStorageMonitor service", e); 268 } 269 270 try { 271 Log.i(TAG, "Starting Location Manager."); 272 ServiceManager.addService(Context.LOCATION_SERVICE, new LocationManagerService(context)); 273 } catch (Throwable e) { 274 Log.e(TAG, "Failure starting Location Manager", e); 275 } 276 277 try { 278 Log.i(TAG, "Starting Search Service."); 279 ServiceManager.addService( Context.SEARCH_SERVICE, new SearchManagerService(context) ); 280 } catch (Throwable e) { 281 Log.e(TAG, "Failure starting Search Service", e); 282 } 283 284 if (INCLUDE_DEMO) { 285 Log.i(TAG, "Installing demo data..."); 286 (new DemoThread(context)).start(); 287 } 288 289 try { 290 Log.i(TAG, "Starting Checkin Service."); 291 Intent intent = new Intent().setComponent(new ComponentName( 292 "com.google.android.server.checkin", 293 "com.google.android.server.checkin.CheckinService")); 294 if (context.startService(intent) == null) { 295 Log.w(TAG, "Using fallback Checkin Service."); 296 ServiceManager.addService("checkin", new FallbackCheckinService(context)); 297 } 298 } catch (Throwable e) { 299 Log.e(TAG, "Failure starting Checkin Service", e); 300 } 301 302 try { 303 Log.i(TAG, "Starting Wallpaper Service"); 304 ServiceManager.addService(Context.WALLPAPER_SERVICE, new WallpaperService(context)); 305 } catch (Throwable e) { 306 Log.e(TAG, "Failure starting Wallpaper Service", e); 307 } 308 309 try { 310 Log.i(TAG, "Starting Audio Service"); 311 ServiceManager.addService(Context.AUDIO_SERVICE, new AudioService(context)); 312 } catch (Throwable e) { 313 Log.e(TAG, "Failure starting Audio Service", e); 314 } 315 316 try { 317 Log.i(TAG, "Starting HeadsetObserver"); 318 // Listen for wired headset changes 319 headset = new HeadsetObserver(context); 320 } catch (Throwable e) { 321 Log.e(TAG, "Failure starting HeadsetObserver", e); 322 } 323 324 try { 325 Log.i(TAG, "Starting Backup Service"); 326 ServiceManager.addService(Context.BACKUP_SERVICE, new BackupManagerService(context)); 327 } catch (Throwable e) { 328 Log.e(TAG, "Failure starting Backup Service", e); 329 } 330 331 try { 332 Log.i(TAG, "Starting AppWidget Service"); 333 appWidget = new AppWidgetService(context); 334 ServiceManager.addService(Context.APPWIDGET_SERVICE, appWidget); 335 } catch (Throwable e) { 336 Log.e(TAG, "Failure starting AppWidget Service", e); 337 } 338 339 try { 340 com.android.server.status.StatusBarPolicy.installIcons(context, statusBar); 341 } catch (Throwable e) { 342 Log.e(TAG, "Failure installing status bar icons", e); 343 } 344 } 345 346 // make sure the ADB_ENABLED setting value matches the secure property value 347 Settings.Secure.putInt(mContentResolver, Settings.Secure.ADB_ENABLED, 348 "1".equals(SystemProperties.get("persist.service.adb.enable")) ? 1 : 0); 349 350 // register observer to listen for settings changes 351 mContentResolver.registerContentObserver(Settings.Secure.getUriFor(Settings.Secure.ADB_ENABLED), 352 false, new AdbSettingsObserver()); 353 354 // It is now time to start up the app processes... 355 boolean safeMode = wm.detectSafeMode(); 356 357 if (notification != null) { 358 notification.systemReady(); 359 } 360 361 if (statusBar != null) { 362 statusBar.systemReady(); 363 } 364 if (imm != null) { 365 imm.systemReady(); 366 } 367 wm.systemReady(); 368 power.systemReady(); 369 try { 370 pm.systemReady(); 371 } catch (RemoteException e) { 372 } 373 if (appWidget != null) { 374 appWidget.systemReady(safeMode); 375 } 376 377 // After making the following code, third party code may be running... 378 try { 379 ActivityManagerNative.getDefault().systemReady(); 380 } catch (RemoteException e) { 381 } 382 383 Watchdog.getInstance().start(); 384 385 Looper.loop(); 386 Log.d(TAG, "System ServerThread is exiting!"); 387 } 388} 389 390class DemoThread extends Thread 391{ 392 DemoThread(Context context) 393 { 394 mContext = context; 395 } 396 397 @Override 398 public void run() 399 { 400 try { 401 Cursor c = mContext.getContentResolver().query(People.CONTENT_URI, null, null, null, null); 402 boolean hasData = c != null && c.moveToFirst(); 403 if (c != null) { 404 c.deactivate(); 405 } 406 if (!hasData) { 407 DemoDataSet dataset = new DemoDataSet(); 408 dataset.add(mContext); 409 } 410 } catch (Throwable e) { 411 Log.e("SystemServer", "Failure installing demo data", e); 412 } 413 414 } 415 416 Context mContext; 417} 418 419public class SystemServer 420{ 421 private static final String TAG = "SystemServer"; 422 423 public static final int FACTORY_TEST_OFF = 0; 424 public static final int FACTORY_TEST_LOW_LEVEL = 1; 425 public static final int FACTORY_TEST_HIGH_LEVEL = 2; 426 427 /** 428 * This method is called from Zygote to initialize the system. This will cause the native 429 * services (SurfaceFlinger, AudioFlinger, etc..) to be started. After that it will call back 430 * up into init2() to start the Android services. 431 */ 432 native public static void init1(String[] args); 433 434 public static void main(String[] args) { 435 // The system server has to run all of the time, so it needs to be 436 // as efficient as possible with its memory usage. 437 VMRuntime.getRuntime().setTargetHeapUtilization(0.8f); 438 439 System.loadLibrary("android_servers"); 440 init1(args); 441 } 442 443 public static final void init2() { 444 Log.i(TAG, "Entered the Android system server!"); 445 Thread thr = new ServerThread(); 446 thr.setName("android.server.ServerThread"); 447 thr.start(); 448 } 449} 450