SystemServer.java revision 3a32213c4029a03fe39486f3d6ebd0ea18928ee1
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; 21import com.android.internal.os.SamplingProfilerIntegration; 22 23import dalvik.system.VMRuntime; 24 25import android.app.ActivityManagerNative; 26import android.bluetooth.BluetoothAdapter; 27import android.content.ComponentName; 28import android.content.ContentResolver; 29import android.content.ContentService; 30import android.content.Context; 31import android.content.Intent; 32import android.content.pm.IPackageManager; 33import android.database.ContentObserver; 34import android.database.Cursor; 35import android.media.AudioService; 36import android.os.*; 37import android.provider.Contacts.People; 38import android.provider.Settings; 39import android.server.BluetoothA2dpService; 40import android.server.BluetoothService; 41import android.server.search.SearchManagerService; 42import android.util.EventLog; 43import android.util.Log; 44import android.accounts.AccountManagerService; 45 46import java.io.File; 47import java.util.Timer; 48import java.util.TimerTask; 49 50class ServerThread extends Thread { 51 private static final String TAG = "SystemServer"; 52 private final static boolean INCLUDE_DEMO = false; 53 54 private static final int LOG_BOOT_PROGRESS_SYSTEM_RUN = 3010; 55 56 private ContentResolver mContentResolver; 57 58 private class AdbSettingsObserver extends ContentObserver { 59 public AdbSettingsObserver() { 60 super(null); 61 } 62 @Override 63 public void onChange(boolean selfChange) { 64 boolean enableAdb = (Settings.Secure.getInt(mContentResolver, 65 Settings.Secure.ADB_ENABLED, 0) > 0); 66 // setting this secure property will start or stop adbd 67 SystemProperties.set("persist.service.adb.enable", enableAdb ? "1" : "0"); 68 } 69 } 70 71 @Override 72 public void run() { 73 EventLog.writeEvent(LOG_BOOT_PROGRESS_SYSTEM_RUN, 74 SystemClock.uptimeMillis()); 75 76 ActivityManagerService.prepareTraceFile(false); // create dir 77 78 Looper.prepare(); 79 80 android.os.Process.setThreadPriority( 81 android.os.Process.THREAD_PRIORITY_FOREGROUND); 82 83 String factoryTestStr = SystemProperties.get("ro.factorytest"); 84 int factoryTest = "".equals(factoryTestStr) ? SystemServer.FACTORY_TEST_OFF 85 : Integer.parseInt(factoryTestStr); 86 87 LightsService lights = null; 88 PowerManagerService power = null; 89 BatteryService battery = null; 90 ConnectivityService connectivity = null; 91 IPackageManager pm = null; 92 Context context = null; 93 WindowManagerService wm = null; 94 BluetoothService bluetooth = null; 95 BluetoothA2dpService bluetoothA2dp = null; 96 HeadsetObserver headset = null; 97 DockObserver dock = null; 98 99 // Critical services... 100 try { 101 Log.i(TAG, "Entropy Service"); 102 ServiceManager.addService("entropy", new EntropyService()); 103 104 Log.i(TAG, "Power Manager"); 105 power = new PowerManagerService(); 106 ServiceManager.addService(Context.POWER_SERVICE, power); 107 108 Log.i(TAG, "Activity Manager"); 109 context = ActivityManagerService.main(factoryTest); 110 111 Log.i(TAG, "Telephony Registry"); 112 ServiceManager.addService("telephony.registry", new TelephonyRegistry(context)); 113 114 AttributeCache.init(context); 115 116 Log.i(TAG, "Package Manager"); 117 pm = PackageManagerService.main(context, 118 factoryTest != SystemServer.FACTORY_TEST_OFF); 119 120 ActivityManagerService.setSystemProcess(); 121 122 mContentResolver = context.getContentResolver(); 123 124 // The AccountManager must come before the ContentService 125 try { 126 Log.i(TAG, "Account Manager"); 127 ServiceManager.addService(Context.ACCOUNT_SERVICE, 128 new AccountManagerService(context)); 129 } catch (Throwable e) { 130 Log.e(TAG, "Failure starting Account Manager", e); 131 } 132 133 Log.i(TAG, "Content Manager"); 134 ContentService.main(context, 135 factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL); 136 137 Log.i(TAG, "System Content Providers"); 138 ActivityManagerService.installSystemProviders(); 139 140 Log.i(TAG, "Battery Service"); 141 battery = new BatteryService(context); 142 ServiceManager.addService("battery", battery); 143 144 Log.i(TAG, "Lights Service"); 145 lights = new LightsService(context); 146 147 Log.i(TAG, "Vibrator Service"); 148 ServiceManager.addService("vibrator", new VibratorService(context)); 149 150 // only initialize the power service after we have started the 151 // lights service, content providers and the battery service. 152 power.init(context, lights, ActivityManagerService.getDefault(), battery); 153 154 Log.i(TAG, "Alarm Manager"); 155 AlarmManagerService alarm = new AlarmManagerService(context); 156 ServiceManager.addService(Context.ALARM_SERVICE, alarm); 157 158 Log.i(TAG, "Init Watchdog"); 159 Watchdog.getInstance().init(context, battery, power, alarm, 160 ActivityManagerService.self()); 161 162 // Sensor Service is needed by Window Manager, so this goes first 163 Log.i(TAG, "Sensor Service"); 164 ServiceManager.addService(Context.SENSOR_SERVICE, new SensorService(context)); 165 166 Log.i(TAG, "Window Manager"); 167 wm = WindowManagerService.main(context, power, 168 factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL); 169 ServiceManager.addService(Context.WINDOW_SERVICE, wm); 170 171 ((ActivityManagerService)ServiceManager.getService("activity")) 172 .setWindowManager(wm); 173 174 // Skip Bluetooth if we have an emulator kernel 175 // TODO: Use a more reliable check to see if this product should 176 // support Bluetooth - see bug 988521 177 if (SystemProperties.get("ro.kernel.qemu").equals("1")) { 178 Log.i(TAG, "Registering null Bluetooth Service (emulator)"); 179 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, null); 180 } else if (factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL) { 181 Log.i(TAG, "Registering null Bluetooth Service (factory test)"); 182 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, null); 183 } else { 184 Log.i(TAG, "Bluetooth Service"); 185 bluetooth = new BluetoothService(context); 186 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, bluetooth); 187 bluetooth.initAfterRegistration(); 188 bluetoothA2dp = new BluetoothA2dpService(context, bluetooth); 189 ServiceManager.addService(BluetoothA2dpService.BLUETOOTH_A2DP_SERVICE, 190 bluetoothA2dp); 191 192 int bluetoothOn = Settings.Secure.getInt(mContentResolver, 193 Settings.Secure.BLUETOOTH_ON, 0); 194 if (bluetoothOn > 0) { 195 bluetooth.enable(); 196 } 197 } 198 199 } catch (RuntimeException e) { 200 Log.e("System", "Failure starting core service", e); 201 } 202 203 StatusBarService statusBar = null; 204 InputMethodManagerService imm = null; 205 AppWidgetService appWidget = null; 206 NotificationManagerService notification = null; 207 WallpaperManagerService wallpaper = null; 208 209 if (factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL) { 210 try { 211 Log.i(TAG, "Status Bar"); 212 statusBar = new StatusBarService(context); 213 ServiceManager.addService("statusbar", statusBar); 214 } catch (Throwable e) { 215 Log.e(TAG, "Failure starting StatusBarService", e); 216 } 217 218 try { 219 Log.i(TAG, "Clipboard Service"); 220 ServiceManager.addService("clipboard", new ClipboardService(context)); 221 } catch (Throwable e) { 222 Log.e(TAG, "Failure starting Clipboard Service", e); 223 } 224 225 try { 226 Log.i(TAG, "Input Method Service"); 227 imm = new InputMethodManagerService(context, statusBar); 228 ServiceManager.addService(Context.INPUT_METHOD_SERVICE, imm); 229 } catch (Throwable e) { 230 Log.e(TAG, "Failure starting Input Manager Service", e); 231 } 232 233 try { 234 Log.i(TAG, "NetStat Service"); 235 ServiceManager.addService("netstat", new NetStatService(context)); 236 } catch (Throwable e) { 237 Log.e(TAG, "Failure starting NetStat Service", e); 238 } 239 240 try { 241 Log.i(TAG, "Connectivity Service"); 242 connectivity = ConnectivityService.getInstance(context); 243 ServiceManager.addService(Context.CONNECTIVITY_SERVICE, connectivity); 244 } catch (Throwable e) { 245 Log.e(TAG, "Failure starting Connectivity Service", e); 246 } 247 248 try { 249 Log.i(TAG, "Accessibility Manager"); 250 ServiceManager.addService(Context.ACCESSIBILITY_SERVICE, 251 new AccessibilityManagerService(context)); 252 } catch (Throwable e) { 253 Log.e(TAG, "Failure starting Accessibility Manager", e); 254 } 255 256 try { 257 Log.i(TAG, "Notification Manager"); 258 notification = new NotificationManagerService(context, statusBar, lights); 259 ServiceManager.addService(Context.NOTIFICATION_SERVICE, notification); 260 } catch (Throwable e) { 261 Log.e(TAG, "Failure starting Notification Manager", e); 262 } 263 264 try { 265 // MountService must start after NotificationManagerService 266 Log.i(TAG, "Mount Service"); 267 ServiceManager.addService("mount", new MountService(context)); 268 } catch (Throwable e) { 269 Log.e(TAG, "Failure starting Mount Service", e); 270 } 271 272 try { 273 Log.i(TAG, "Device Storage Monitor"); 274 ServiceManager.addService(DeviceStorageMonitorService.SERVICE, 275 new DeviceStorageMonitorService(context)); 276 } catch (Throwable e) { 277 Log.e(TAG, "Failure starting DeviceStorageMonitor service", e); 278 } 279 280 try { 281 Log.i(TAG, "Location Manager"); 282 ServiceManager.addService(Context.LOCATION_SERVICE, new LocationManagerService(context)); 283 } catch (Throwable e) { 284 Log.e(TAG, "Failure starting Location Manager", e); 285 } 286 287 try { 288 Log.i(TAG, "Search Service"); 289 ServiceManager.addService( Context.SEARCH_SERVICE, new SearchManagerService(context) ); 290 } catch (Throwable e) { 291 Log.e(TAG, "Failure starting Search Service", e); 292 } 293 294 if (INCLUDE_DEMO) { 295 Log.i(TAG, "Installing demo data..."); 296 (new DemoThread(context)).start(); 297 } 298 299 try { 300 Log.i(TAG, "DropBox Service"); 301 ServiceManager.addService(Context.DROPBOX_SERVICE, 302 new DropBoxManagerService(context, new File("/data/system/dropbox"))); 303 } catch (Throwable e) { 304 Log.e(TAG, "Failure starting DropBoxManagerService", e); 305 } 306 307 try { 308 Log.i(TAG, "Checkin Service"); 309 Intent intent = new Intent().setComponent(new ComponentName( 310 "com.google.android.server.checkin", 311 "com.google.android.server.checkin.CheckinService")); 312 if (context.startService(intent) == null) { 313 Log.w(TAG, "Using fallback Checkin Service."); 314 ServiceManager.addService("checkin", new FallbackCheckinService(context)); 315 } 316 } catch (Throwable e) { 317 Log.e(TAG, "Failure starting Checkin Service", e); 318 } 319 320 try { 321 Log.i(TAG, "Wallpaper Service"); 322 wallpaper = new WallpaperManagerService(context); 323 ServiceManager.addService(Context.WALLPAPER_SERVICE, wallpaper); 324 } catch (Throwable e) { 325 Log.e(TAG, "Failure starting Wallpaper Service", e); 326 } 327 328 try { 329 Log.i(TAG, "Audio Service"); 330 ServiceManager.addService(Context.AUDIO_SERVICE, new AudioService(context)); 331 } catch (Throwable e) { 332 Log.e(TAG, "Failure starting Audio Service", e); 333 } 334 335 try { 336 Log.i(TAG, "Headset Observer"); 337 // Listen for wired headset changes 338 headset = new HeadsetObserver(context); 339 } catch (Throwable e) { 340 Log.e(TAG, "Failure starting HeadsetObserver", e); 341 } 342 343 try { 344 Log.i(TAG, "Dock Observer"); 345 // Listen for dock station changes 346 dock = new DockObserver(context, power); 347 } catch (Throwable e) { 348 Log.e(TAG, "Failure starting DockObserver", e); 349 } 350 351 try { 352 Log.i(TAG, "Backup Service"); 353 ServiceManager.addService(Context.BACKUP_SERVICE, new BackupManagerService(context)); 354 } catch (Throwable e) { 355 Log.e(TAG, "Failure starting Backup Service", e); 356 } 357 358 try { 359 Log.i(TAG, "AppWidget Service"); 360 appWidget = new AppWidgetService(context); 361 ServiceManager.addService(Context.APPWIDGET_SERVICE, appWidget); 362 } catch (Throwable e) { 363 Log.e(TAG, "Failure starting AppWidget Service", e); 364 } 365 366 try { 367 com.android.server.status.StatusBarPolicy.installIcons(context, statusBar); 368 } catch (Throwable e) { 369 Log.e(TAG, "Failure installing status bar icons", e); 370 } 371 } 372 373 // make sure the ADB_ENABLED setting value matches the secure property value 374 Settings.Secure.putInt(mContentResolver, Settings.Secure.ADB_ENABLED, 375 "1".equals(SystemProperties.get("persist.service.adb.enable")) ? 1 : 0); 376 377 // register observer to listen for settings changes 378 mContentResolver.registerContentObserver(Settings.Secure.getUriFor(Settings.Secure.ADB_ENABLED), 379 false, new AdbSettingsObserver()); 380 381 // Before things start rolling, be sure we have decided whether 382 // we are in safe mode. 383 final boolean safeMode = wm.detectSafeMode(); 384 if (safeMode) { 385 try { 386 ActivityManagerNative.getDefault().enterSafeMode(); 387 } catch (RemoteException e) { 388 } 389 } 390 391 // It is now time to start up the app processes... 392 393 if (notification != null) { 394 notification.systemReady(); 395 } 396 397 if (statusBar != null) { 398 statusBar.systemReady(); 399 } 400 wm.systemReady(); 401 power.systemReady(); 402 try { 403 pm.systemReady(); 404 } catch (RemoteException e) { 405 } 406 407 // These are needed to propagate to the runnable below. 408 final BatteryService batteryF = battery; 409 final ConnectivityService connectivityF = connectivity; 410 final DockObserver dockF = dock; 411 final AppWidgetService appWidgetF = appWidget; 412 final WallpaperManagerService wallpaperF = wallpaper; 413 final InputMethodManagerService immF = imm; 414 415 // We now tell the activity manager it is okay to run third party 416 // code. It will call back into us once it has gotten to the state 417 // where third party code can really run (but before it has actually 418 // started launching the initial applications), for us to complete our 419 // initialization. 420 ((ActivityManagerService)ActivityManagerNative.getDefault()) 421 .systemReady(new Runnable() { 422 public void run() { 423 Log.i(TAG, "Making services ready"); 424 425 if (batteryF != null) batteryF.systemReady(); 426 if (connectivityF != null) connectivityF.systemReady(); 427 if (dockF != null) dockF.systemReady(); 428 Watchdog.getInstance().start(); 429 430 // It is now okay to let the various system services start their 431 // third party code... 432 433 if (appWidgetF != null) appWidgetF.systemReady(safeMode); 434 if (wallpaperF != null) wallpaperF.systemReady(); 435 if (immF != null) immF.systemReady(); 436 } 437 }); 438 439 Looper.loop(); 440 Log.d(TAG, "System ServerThread is exiting!"); 441 } 442} 443 444class DemoThread extends Thread 445{ 446 DemoThread(Context context) 447 { 448 mContext = context; 449 } 450 451 @Override 452 public void run() 453 { 454 try { 455 Cursor c = mContext.getContentResolver().query(People.CONTENT_URI, null, null, null, null); 456 boolean hasData = c != null && c.moveToFirst(); 457 if (c != null) { 458 c.deactivate(); 459 } 460 if (!hasData) { 461 DemoDataSet dataset = new DemoDataSet(); 462 dataset.add(mContext); 463 } 464 } catch (Throwable e) { 465 Log.e("SystemServer", "Failure installing demo data", e); 466 } 467 468 } 469 470 Context mContext; 471} 472 473public class SystemServer 474{ 475 private static final String TAG = "SystemServer"; 476 477 public static final int FACTORY_TEST_OFF = 0; 478 public static final int FACTORY_TEST_LOW_LEVEL = 1; 479 public static final int FACTORY_TEST_HIGH_LEVEL = 2; 480 481 static Timer timer; 482 static final long SNAPSHOT_INTERVAL = 60 * 60 * 1000; // 1hr 483 484 /** 485 * This method is called from Zygote to initialize the system. This will cause the native 486 * services (SurfaceFlinger, AudioFlinger, etc..) to be started. After that it will call back 487 * up into init2() to start the Android services. 488 */ 489 native public static void init1(String[] args); 490 491 public static void main(String[] args) { 492 if (SamplingProfilerIntegration.isEnabled()) { 493 SamplingProfilerIntegration.start(); 494 timer = new Timer(); 495 timer.schedule(new TimerTask() { 496 @Override 497 public void run() { 498 SamplingProfilerIntegration.writeSnapshot("system_server"); 499 } 500 }, SNAPSHOT_INTERVAL, SNAPSHOT_INTERVAL); 501 } 502 503 // The system server has to run all of the time, so it needs to be 504 // as efficient as possible with its memory usage. 505 VMRuntime.getRuntime().setTargetHeapUtilization(0.8f); 506 507 System.loadLibrary("android_servers"); 508 init1(args); 509 } 510 511 public static final void init2() { 512 Log.i(TAG, "Entered the Android system server!"); 513 Thread thr = new ServerThread(); 514 thr.setName("android.server.ServerThread"); 515 thr.start(); 516 } 517} 518