SystemServer.java revision 6ccd2aff3eb4450c6f1021637d18e4e5d9346bf0
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.VMRuntime; 23 24import android.app.ActivityManagerNative; 25import android.content.ComponentName; 26import android.content.ContentResolver; 27import android.content.ContentService; 28import android.content.Context; 29import android.content.Intent; 30import android.content.pm.IPackageManager; 31import android.database.ContentObserver; 32import android.database.Cursor; 33import android.media.AudioService; 34import android.os.*; 35import android.provider.Contacts.People; 36import android.provider.Settings; 37import android.server.BluetoothA2dpService; 38import android.server.BluetoothService; 39import android.server.search.SearchManagerService; 40import android.util.EventLog; 41import android.util.Log; 42import android.accounts.AccountManagerService; 43 44class ServerThread extends Thread { 45 private static final String TAG = "SystemServer"; 46 private final static boolean INCLUDE_DEMO = false; 47 48 private static final int LOG_BOOT_PROGRESS_SYSTEM_RUN = 3010; 49 50 private ContentResolver mContentResolver; 51 52 private class AdbSettingsObserver extends ContentObserver { 53 public AdbSettingsObserver() { 54 super(null); 55 } 56 @Override 57 public void onChange(boolean selfChange) { 58 boolean enableAdb = (Settings.Secure.getInt(mContentResolver, 59 Settings.Secure.ADB_ENABLED, 0) > 0); 60 // setting this secure property will start or stop adbd 61 SystemProperties.set("persist.service.adb.enable", enableAdb ? "1" : "0"); 62 } 63 } 64 65 @Override 66 public void run() { 67 EventLog.writeEvent(LOG_BOOT_PROGRESS_SYSTEM_RUN, 68 SystemClock.uptimeMillis()); 69 70 ActivityManagerService.prepareTraceFile(false); // create dir 71 72 Looper.prepare(); 73 74 android.os.Process.setThreadPriority( 75 android.os.Process.THREAD_PRIORITY_FOREGROUND); 76 77 String factoryTestStr = SystemProperties.get("ro.factorytest"); 78 int factoryTest = "".equals(factoryTestStr) ? SystemServer.FACTORY_TEST_OFF 79 : Integer.parseInt(factoryTestStr); 80 81 HardwareService hardware = null; 82 PowerManagerService power = null; 83 BatteryService battery = null; 84 ConnectivityService connectivity = null; 85 IPackageManager pm = null; 86 Context context = null; 87 WindowManagerService wm = null; 88 BluetoothService bluetooth = null; 89 BluetoothA2dpService bluetoothA2dp = null; 90 HeadsetObserver headset = null; 91 DockObserver dock = null; 92 93 // Critical services... 94 try { 95 Log.i(TAG, "Starting Entropy Service."); 96 ServiceManager.addService("entropy", new EntropyService()); 97 98 Log.i(TAG, "Starting Power Manager."); 99 power = new PowerManagerService(); 100 ServiceManager.addService(Context.POWER_SERVICE, power); 101 102 Log.i(TAG, "Starting Activity Manager."); 103 context = ActivityManagerService.main(factoryTest); 104 105 Log.i(TAG, "Starting telephony registry"); 106 ServiceManager.addService("telephony.registry", new TelephonyRegistry(context)); 107 108 AttributeCache.init(context); 109 110 Log.i(TAG, "Starting Package Manager."); 111 pm = PackageManagerService.main(context, 112 factoryTest != SystemServer.FACTORY_TEST_OFF); 113 114 ActivityManagerService.setSystemProcess(); 115 116 mContentResolver = context.getContentResolver(); 117 118 try { 119 Log.i(TAG, "Starting Account Manager."); 120 ServiceManager.addService(Context.ACCOUNT_SERVICE, 121 new AccountManagerService(context)); 122 } catch (Throwable e) { 123 Log.e(TAG, "Failure starting Account Manager", e); 124 } 125 126 Log.i(TAG, "Starting Content Manager."); 127 ContentService.main(context, 128 factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL); 129 130 Log.i(TAG, "Starting System Content Providers."); 131 ActivityManagerService.installSystemProviders(); 132 133 Log.i(TAG, "Starting Battery Service."); 134 battery = new BatteryService(context); 135 ServiceManager.addService("battery", battery); 136 137 Log.i(TAG, "Starting Hardware Service."); 138 hardware = new HardwareService(context); 139 ServiceManager.addService("hardware", hardware); 140 141 // only initialize the power service after we have started the 142 // hardware service, content providers and the battery service. 143 power.init(context, hardware, ActivityManagerService.getDefault(), battery); 144 145 Log.i(TAG, "Starting Alarm Manager."); 146 AlarmManagerService alarm = new AlarmManagerService(context); 147 ServiceManager.addService(Context.ALARM_SERVICE, alarm); 148 149 Watchdog.getInstance().init(context, battery, power, alarm, 150 ActivityManagerService.self()); 151 152 // Sensor Service is needed by Window Manager, so this goes first 153 Log.i(TAG, "Starting Sensor Service."); 154 ServiceManager.addService(Context.SENSOR_SERVICE, new SensorService(context)); 155 156 Log.i(TAG, "Starting Window Manager."); 157 wm = WindowManagerService.main(context, power, 158 factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL); 159 ServiceManager.addService(Context.WINDOW_SERVICE, wm); 160 161 ((ActivityManagerService)ServiceManager.getService("activity")) 162 .setWindowManager(wm); 163 164 // Skip Bluetooth if we have an emulator kernel 165 // TODO: Use a more reliable check to see if this product should 166 // support Bluetooth - see bug 988521 167 if (SystemProperties.get("ro.kernel.qemu").equals("1")) { 168 Log.i(TAG, "Registering null Bluetooth Service (emulator)"); 169 ServiceManager.addService(Context.BLUETOOTH_SERVICE, null); 170 } else if (factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL) { 171 Log.i(TAG, "Registering null Bluetooth Service (factory test)"); 172 ServiceManager.addService(Context.BLUETOOTH_SERVICE, null); 173 } else { 174 Log.i(TAG, "Starting Bluetooth Service."); 175 bluetooth = new BluetoothService(context); 176 ServiceManager.addService(Context.BLUETOOTH_SERVICE, bluetooth); 177 bluetooth.initAfterRegistration(); 178 bluetoothA2dp = new BluetoothA2dpService(context, bluetooth); 179 ServiceManager.addService(BluetoothA2dpService.BLUETOOTH_A2DP_SERVICE, 180 bluetoothA2dp); 181 182 int bluetoothOn = Settings.Secure.getInt(mContentResolver, 183 Settings.Secure.BLUETOOTH_ON, 0); 184 if (bluetoothOn > 0) { 185 bluetooth.enable(); 186 } 187 } 188 189 } catch (RuntimeException e) { 190 Log.e("System", "Failure starting core service", e); 191 } 192 193 StatusBarService statusBar = null; 194 InputMethodManagerService imm = null; 195 AppWidgetService appWidget = null; 196 NotificationManagerService notification = null; 197 WallpaperManagerService wallpaper = 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 connectivity = ConnectivityService.getInstance(context); 233 ServiceManager.addService(Context.CONNECTIVITY_SERVICE, connectivity); 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 wallpaper = new WallpaperManagerService(context); 305 ServiceManager.addService(Context.WALLPAPER_SERVICE, wallpaper); 306 } catch (Throwable e) { 307 Log.e(TAG, "Failure starting Wallpaper Service", e); 308 } 309 310 try { 311 Log.i(TAG, "Starting Audio Service"); 312 ServiceManager.addService(Context.AUDIO_SERVICE, new AudioService(context)); 313 } catch (Throwable e) { 314 Log.e(TAG, "Failure starting Audio Service", e); 315 } 316 317 try { 318 Log.i(TAG, "Starting HeadsetObserver"); 319 // Listen for wired headset changes 320 headset = new HeadsetObserver(context); 321 } catch (Throwable e) { 322 Log.e(TAG, "Failure starting HeadsetObserver", e); 323 } 324 325 try { 326 Log.i(TAG, "Starting DockObserver"); 327 // Listen for dock station changes 328 dock = new DockObserver(context); 329 } catch (Throwable e) { 330 Log.e(TAG, "Failure starting DockObserver", e); 331 } 332 333 try { 334 Log.i(TAG, "Starting Backup Service"); 335 ServiceManager.addService(Context.BACKUP_SERVICE, new BackupManagerService(context)); 336 } catch (Throwable e) { 337 Log.e(TAG, "Failure starting Backup Service", e); 338 } 339 340 try { 341 Log.i(TAG, "Starting AppWidget Service"); 342 appWidget = new AppWidgetService(context); 343 ServiceManager.addService(Context.APPWIDGET_SERVICE, appWidget); 344 } catch (Throwable e) { 345 Log.e(TAG, "Failure starting AppWidget Service", e); 346 } 347 348 try { 349 com.android.server.status.StatusBarPolicy.installIcons(context, statusBar); 350 } catch (Throwable e) { 351 Log.e(TAG, "Failure installing status bar icons", e); 352 } 353 } 354 355 // make sure the ADB_ENABLED setting value matches the secure property value 356 Settings.Secure.putInt(mContentResolver, Settings.Secure.ADB_ENABLED, 357 "1".equals(SystemProperties.get("persist.service.adb.enable")) ? 1 : 0); 358 359 // register observer to listen for settings changes 360 mContentResolver.registerContentObserver(Settings.Secure.getUriFor(Settings.Secure.ADB_ENABLED), 361 false, new AdbSettingsObserver()); 362 363 // It is now time to start up the app processes... 364 boolean safeMode = wm.detectSafeMode(); 365 366 if (notification != null) { 367 notification.systemReady(); 368 } 369 370 if (statusBar != null) { 371 statusBar.systemReady(); 372 } 373 if (imm != null) { 374 imm.systemReady(); 375 } 376 wm.systemReady(); 377 power.systemReady(); 378 try { 379 pm.systemReady(); 380 } catch (RemoteException e) { 381 } 382 if (appWidget != null) { 383 appWidget.systemReady(safeMode); 384 } 385 386 // After making the following code, third party code may be running... 387 try { 388 ActivityManagerNative.getDefault().systemReady(); 389 } catch (RemoteException e) { 390 } 391 392 if (wallpaper != null) wallpaper.systemReady(); 393 if (battery != null) battery.systemReady(); 394 if (connectivity != null) connectivity.systemReady(); 395 Watchdog.getInstance().start(); 396 397 Looper.loop(); 398 Log.d(TAG, "System ServerThread is exiting!"); 399 } 400} 401 402class DemoThread extends Thread 403{ 404 DemoThread(Context context) 405 { 406 mContext = context; 407 } 408 409 @Override 410 public void run() 411 { 412 try { 413 Cursor c = mContext.getContentResolver().query(People.CONTENT_URI, null, null, null, null); 414 boolean hasData = c != null && c.moveToFirst(); 415 if (c != null) { 416 c.deactivate(); 417 } 418 if (!hasData) { 419 DemoDataSet dataset = new DemoDataSet(); 420 dataset.add(mContext); 421 } 422 } catch (Throwable e) { 423 Log.e("SystemServer", "Failure installing demo data", e); 424 } 425 426 } 427 428 Context mContext; 429} 430 431public class SystemServer 432{ 433 private static final String TAG = "SystemServer"; 434 435 public static final int FACTORY_TEST_OFF = 0; 436 public static final int FACTORY_TEST_LOW_LEVEL = 1; 437 public static final int FACTORY_TEST_HIGH_LEVEL = 2; 438 439 /** 440 * This method is called from Zygote to initialize the system. This will cause the native 441 * services (SurfaceFlinger, AudioFlinger, etc..) to be started. After that it will call back 442 * up into init2() to start the Android services. 443 */ 444 native public static void init1(String[] args); 445 446 public static void main(String[] args) { 447 // The system server has to run all of the time, so it needs to be 448 // as efficient as possible with its memory usage. 449 VMRuntime.getRuntime().setTargetHeapUtilization(0.8f); 450 451 System.loadLibrary("android_servers"); 452 init1(args); 453 } 454 455 public static final void init2() { 456 Log.i(TAG, "Entered the Android system server!"); 457 Thread thr = new ServerThread(); 458 thr.setName("android.server.ServerThread"); 459 thr.start(); 460 } 461} 462