SystemServer.java revision 2a9094d07915a077026a651a7773f94322bf7d23
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.BinderInternal; 22import com.android.internal.os.SamplingProfilerIntegration; 23 24import dalvik.system.VMRuntime; 25 26import android.app.ActivityManagerNative; 27import android.bluetooth.BluetoothAdapter; 28import android.content.ComponentName; 29import android.content.ContentResolver; 30import android.content.ContentService; 31import android.content.Context; 32import android.content.Intent; 33import android.content.pm.IPackageManager; 34import android.database.ContentObserver; 35import android.database.Cursor; 36import android.media.AudioService; 37import android.os.*; 38import android.provider.Contacts.People; 39import android.provider.Settings; 40import android.server.BluetoothA2dpService; 41import android.server.BluetoothService; 42import android.server.search.SearchManagerService; 43import android.util.EventLog; 44import android.util.Log; 45import android.accounts.AccountManagerService; 46 47import java.io.File; 48import java.util.Timer; 49import java.util.TimerTask; 50 51class ServerThread extends Thread { 52 private static final String TAG = "SystemServer"; 53 private final static boolean INCLUDE_DEMO = false; 54 55 private static final int LOG_BOOT_PROGRESS_SYSTEM_RUN = 3010; 56 57 private ContentResolver mContentResolver; 58 59 private class AdbSettingsObserver extends ContentObserver { 60 public AdbSettingsObserver() { 61 super(null); 62 } 63 @Override 64 public void onChange(boolean selfChange) { 65 boolean enableAdb = (Settings.Secure.getInt(mContentResolver, 66 Settings.Secure.ADB_ENABLED, 0) > 0); 67 // setting this secure property will start or stop adbd 68 SystemProperties.set("persist.service.adb.enable", enableAdb ? "1" : "0"); 69 } 70 } 71 72 @Override 73 public void run() { 74 EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_SYSTEM_RUN, 75 SystemClock.uptimeMillis()); 76 77 Looper.prepare(); 78 79 android.os.Process.setThreadPriority( 80 android.os.Process.THREAD_PRIORITY_FOREGROUND); 81 82 BinderInternal.disableBackgroundScheduling(true); 83 84 String factoryTestStr = SystemProperties.get("ro.factorytest"); 85 int factoryTest = "".equals(factoryTestStr) ? SystemServer.FACTORY_TEST_OFF 86 : Integer.parseInt(factoryTestStr); 87 88 LightsService lights = null; 89 PowerManagerService power = null; 90 BatteryService battery = null; 91 ConnectivityService connectivity = null; 92 IPackageManager pm = null; 93 Context context = null; 94 WindowManagerService wm = null; 95 BluetoothService bluetooth = null; 96 BluetoothA2dpService bluetoothA2dp = null; 97 HeadsetObserver headset = null; 98 DockObserver dock = null; 99 100 // Critical services... 101 try { 102 Log.i(TAG, "Entropy Service"); 103 ServiceManager.addService("entropy", new EntropyService()); 104 105 Log.i(TAG, "Power Manager"); 106 power = new PowerManagerService(); 107 ServiceManager.addService(Context.POWER_SERVICE, power); 108 109 Log.i(TAG, "Activity Manager"); 110 context = ActivityManagerService.main(factoryTest); 111 112 Log.i(TAG, "Telephony Registry"); 113 ServiceManager.addService("telephony.registry", new TelephonyRegistry(context)); 114 115 AttributeCache.init(context); 116 117 Log.i(TAG, "Package Manager"); 118 pm = PackageManagerService.main(context, 119 factoryTest != SystemServer.FACTORY_TEST_OFF); 120 121 ActivityManagerService.setSystemProcess(); 122 123 mContentResolver = context.getContentResolver(); 124 125 // The AccountManager must come before the ContentService 126 try { 127 Log.i(TAG, "Account Manager"); 128 ServiceManager.addService(Context.ACCOUNT_SERVICE, 129 new AccountManagerService(context)); 130 } catch (Throwable e) { 131 Log.e(TAG, "Failure starting Account Manager", e); 132 } 133 134 Log.i(TAG, "Content Manager"); 135 ContentService.main(context, 136 factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL); 137 138 Log.i(TAG, "System Content Providers"); 139 ActivityManagerService.installSystemProviders(); 140 141 Log.i(TAG, "Battery Service"); 142 battery = new BatteryService(context); 143 ServiceManager.addService("battery", battery); 144 145 Log.i(TAG, "Lights Service"); 146 lights = new LightsService(context); 147 148 Log.i(TAG, "Vibrator Service"); 149 ServiceManager.addService("vibrator", new VibratorService(context)); 150 151 // only initialize the power service after we have started the 152 // lights service, content providers and the battery service. 153 power.init(context, lights, ActivityManagerService.getDefault(), battery); 154 155 Log.i(TAG, "Alarm Manager"); 156 AlarmManagerService alarm = new AlarmManagerService(context); 157 ServiceManager.addService(Context.ALARM_SERVICE, alarm); 158 159 Log.i(TAG, "Init Watchdog"); 160 Watchdog.getInstance().init(context, battery, power, alarm, 161 ActivityManagerService.self()); 162 163 // Sensor Service is needed by Window Manager, so this goes first 164 Log.i(TAG, "Sensor Service"); 165 ServiceManager.addService(Context.SENSOR_SERVICE, new SensorService(context)); 166 167 Log.i(TAG, "Window Manager"); 168 wm = WindowManagerService.main(context, power, 169 factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL); 170 ServiceManager.addService(Context.WINDOW_SERVICE, wm); 171 172 ((ActivityManagerService)ServiceManager.getService("activity")) 173 .setWindowManager(wm); 174 175 // Skip Bluetooth if we have an emulator kernel 176 // TODO: Use a more reliable check to see if this product should 177 // support Bluetooth - see bug 988521 178 if (SystemProperties.get("ro.kernel.qemu").equals("1")) { 179 Log.i(TAG, "Registering null Bluetooth Service (emulator)"); 180 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, null); 181 } else if (factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL) { 182 Log.i(TAG, "Registering null Bluetooth Service (factory test)"); 183 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, null); 184 } else { 185 Log.i(TAG, "Bluetooth Service"); 186 bluetooth = new BluetoothService(context); 187 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, bluetooth); 188 bluetooth.initAfterRegistration(); 189 bluetoothA2dp = new BluetoothA2dpService(context, bluetooth); 190 ServiceManager.addService(BluetoothA2dpService.BLUETOOTH_A2DP_SERVICE, 191 bluetoothA2dp); 192 193 int bluetoothOn = Settings.Secure.getInt(mContentResolver, 194 Settings.Secure.BLUETOOTH_ON, 0); 195 if (bluetoothOn > 0) { 196 bluetooth.enable(); 197 } 198 } 199 200 } catch (RuntimeException e) { 201 Log.e("System", "Failure starting core service", e); 202 } 203 204 DevicePolicyManagerService devicePolicy = null; 205 StatusBarService statusBar = null; 206 InputMethodManagerService imm = null; 207 AppWidgetService appWidget = null; 208 NotificationManagerService notification = null; 209 WallpaperManagerService wallpaper = null; 210 211 if (factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL) { 212 try { 213 Log.i(TAG, "Device Policy"); 214 devicePolicy = new DevicePolicyManagerService(context); 215 ServiceManager.addService(Context.DEVICE_POLICY_SERVICE, devicePolicy); 216 } catch (Throwable e) { 217 Log.e(TAG, "Failure starting DevicePolicyService", e); 218 } 219 220 try { 221 Log.i(TAG, "Status Bar"); 222 statusBar = new StatusBarService(context); 223 ServiceManager.addService(Context.STATUS_BAR_SERVICE, statusBar); 224 } catch (Throwable e) { 225 Log.e(TAG, "Failure starting StatusBarService", e); 226 } 227 228 try { 229 Log.i(TAG, "Clipboard Service"); 230 ServiceManager.addService(Context.CLIPBOARD_SERVICE, 231 new ClipboardService(context)); 232 } catch (Throwable e) { 233 Log.e(TAG, "Failure starting Clipboard Service", e); 234 } 235 236 try { 237 Log.i(TAG, "Input Method Service"); 238 imm = new InputMethodManagerService(context, statusBar); 239 ServiceManager.addService(Context.INPUT_METHOD_SERVICE, imm); 240 } catch (Throwable e) { 241 Log.e(TAG, "Failure starting Input Manager Service", e); 242 } 243 244 try { 245 Log.i(TAG, "NetStat Service"); 246 ServiceManager.addService("netstat", new NetStatService(context)); 247 } catch (Throwable e) { 248 Log.e(TAG, "Failure starting NetStat Service", e); 249 } 250 251 try { 252 Log.i(TAG, "NetworkManagement Service"); 253 ServiceManager.addService( 254 Context.NETWORKMANAGEMENT_SERVICE, new NetworkManagementService(context)); 255 } catch (Throwable e) { 256 Log.e(TAG, "Failure starting NetworkManagement Service", e); 257 } 258 259 try { 260 Log.i(TAG, "Connectivity Service"); 261 connectivity = ConnectivityService.getInstance(context); 262 ServiceManager.addService(Context.CONNECTIVITY_SERVICE, connectivity); 263 } catch (Throwable e) { 264 Log.e(TAG, "Failure starting Connectivity Service", e); 265 } 266 267 try { 268 Log.i(TAG, "Accessibility Manager"); 269 ServiceManager.addService(Context.ACCESSIBILITY_SERVICE, 270 new AccessibilityManagerService(context)); 271 } catch (Throwable e) { 272 Log.e(TAG, "Failure starting Accessibility Manager", e); 273 } 274 275 try { 276 Log.i(TAG, "Notification Manager"); 277 notification = new NotificationManagerService(context, statusBar, lights); 278 ServiceManager.addService(Context.NOTIFICATION_SERVICE, notification); 279 } catch (Throwable e) { 280 Log.e(TAG, "Failure starting Notification Manager", e); 281 } 282 283 try { 284 // MountService must start after NotificationManagerService 285 Log.i(TAG, "Mount Service"); 286 ServiceManager.addService("mount", new MountService(context)); 287 } catch (Throwable e) { 288 Log.e(TAG, "Failure starting Mount Service", e); 289 } 290 291 try { 292 Log.i(TAG, "Device Storage Monitor"); 293 ServiceManager.addService(DeviceStorageMonitorService.SERVICE, 294 new DeviceStorageMonitorService(context)); 295 } catch (Throwable e) { 296 Log.e(TAG, "Failure starting DeviceStorageMonitor service", e); 297 } 298 299 try { 300 Log.i(TAG, "Location Manager"); 301 ServiceManager.addService(Context.LOCATION_SERVICE, 302 new LocationManagerService(context)); 303 } catch (Throwable e) { 304 Log.e(TAG, "Failure starting Location Manager", e); 305 } 306 307 try { 308 Log.i(TAG, "Search Service"); 309 ServiceManager.addService(Context.SEARCH_SERVICE, 310 new SearchManagerService(context)); 311 } catch (Throwable e) { 312 Log.e(TAG, "Failure starting Search Service", e); 313 } 314 315 if (INCLUDE_DEMO) { 316 Log.i(TAG, "Installing demo data..."); 317 (new DemoThread(context)).start(); 318 } 319 320 try { 321 Log.i(TAG, "DropBox Service"); 322 ServiceManager.addService(Context.DROPBOX_SERVICE, 323 new DropBoxManagerService(context, new File("/data/system/dropbox"))); 324 } catch (Throwable e) { 325 Log.e(TAG, "Failure starting DropBoxManagerService", e); 326 } 327 328 try { 329 Log.i(TAG, "Checkin Service"); 330 Intent intent = new Intent().setComponent(new ComponentName( 331 "com.google.android.server.checkin", 332 "com.google.android.server.checkin.CheckinService")); 333 if (context.startService(intent) == null) { 334 Log.w(TAG, "Using fallback Checkin Service."); 335 ServiceManager.addService("checkin", new FallbackCheckinService(context)); 336 } 337 } catch (Throwable e) { 338 Log.e(TAG, "Failure starting Checkin Service", e); 339 } 340 341 try { 342 Log.i(TAG, "Wallpaper Service"); 343 wallpaper = new WallpaperManagerService(context); 344 ServiceManager.addService(Context.WALLPAPER_SERVICE, wallpaper); 345 } catch (Throwable e) { 346 Log.e(TAG, "Failure starting Wallpaper Service", e); 347 } 348 349 try { 350 Log.i(TAG, "Audio Service"); 351 ServiceManager.addService(Context.AUDIO_SERVICE, new AudioService(context)); 352 } catch (Throwable e) { 353 Log.e(TAG, "Failure starting Audio Service", e); 354 } 355 356 try { 357 Log.i(TAG, "Headset Observer"); 358 // Listen for wired headset changes 359 headset = new HeadsetObserver(context); 360 } catch (Throwable e) { 361 Log.e(TAG, "Failure starting HeadsetObserver", e); 362 } 363 364 try { 365 Log.i(TAG, "Dock Observer"); 366 // Listen for dock station changes 367 dock = new DockObserver(context, power); 368 } catch (Throwable e) { 369 Log.e(TAG, "Failure starting DockObserver", e); 370 } 371 372 try { 373 Log.i(TAG, "Backup Service"); 374 ServiceManager.addService(Context.BACKUP_SERVICE, 375 new BackupManagerService(context)); 376 } catch (Throwable e) { 377 Log.e(TAG, "Failure starting Backup Service", e); 378 } 379 380 try { 381 Log.i(TAG, "AppWidget Service"); 382 appWidget = new AppWidgetService(context); 383 ServiceManager.addService(Context.APPWIDGET_SERVICE, appWidget); 384 } catch (Throwable e) { 385 Log.e(TAG, "Failure starting AppWidget Service", e); 386 } 387 388 try { 389 com.android.server.status.StatusBarPolicy.installIcons(context, statusBar); 390 } catch (Throwable e) { 391 Log.e(TAG, "Failure installing status bar icons", e); 392 } 393 } 394 395 // make sure the ADB_ENABLED setting value matches the secure property value 396 Settings.Secure.putInt(mContentResolver, Settings.Secure.ADB_ENABLED, 397 "1".equals(SystemProperties.get("persist.service.adb.enable")) ? 1 : 0); 398 399 // register observer to listen for settings changes 400 mContentResolver.registerContentObserver(Settings.Secure.getUriFor(Settings.Secure.ADB_ENABLED), 401 false, new AdbSettingsObserver()); 402 403 // Before things start rolling, be sure we have decided whether 404 // we are in safe mode. 405 final boolean safeMode = wm.detectSafeMode(); 406 if (safeMode) { 407 try { 408 ActivityManagerNative.getDefault().enterSafeMode(); 409 } catch (RemoteException e) { 410 } 411 } 412 413 // It is now time to start up the app processes... 414 415 if (devicePolicy != null) { 416 devicePolicy.systemReady(); 417 } 418 419 if (notification != null) { 420 notification.systemReady(); 421 } 422 423 if (statusBar != null) { 424 statusBar.systemReady(); 425 } 426 wm.systemReady(); 427 power.systemReady(); 428 try { 429 pm.systemReady(); 430 } catch (RemoteException e) { 431 } 432 433 // These are needed to propagate to the runnable below. 434 final BatteryService batteryF = battery; 435 final ConnectivityService connectivityF = connectivity; 436 final DockObserver dockF = dock; 437 final AppWidgetService appWidgetF = appWidget; 438 final WallpaperManagerService wallpaperF = wallpaper; 439 final InputMethodManagerService immF = imm; 440 441 // We now tell the activity manager it is okay to run third party 442 // code. It will call back into us once it has gotten to the state 443 // where third party code can really run (but before it has actually 444 // started launching the initial applications), for us to complete our 445 // initialization. 446 ((ActivityManagerService)ActivityManagerNative.getDefault()) 447 .systemReady(new Runnable() { 448 public void run() { 449 Log.i(TAG, "Making services ready"); 450 451 if (batteryF != null) batteryF.systemReady(); 452 if (connectivityF != null) connectivityF.systemReady(); 453 if (dockF != null) dockF.systemReady(); 454 Watchdog.getInstance().start(); 455 456 // It is now okay to let the various system services start their 457 // third party code... 458 459 if (appWidgetF != null) appWidgetF.systemReady(safeMode); 460 if (wallpaperF != null) wallpaperF.systemReady(); 461 if (immF != null) immF.systemReady(); 462 } 463 }); 464 465 Looper.loop(); 466 Log.d(TAG, "System ServerThread is exiting!"); 467 } 468} 469 470class DemoThread extends Thread 471{ 472 DemoThread(Context context) 473 { 474 mContext = context; 475 } 476 477 @Override 478 public void run() 479 { 480 try { 481 Cursor c = mContext.getContentResolver().query(People.CONTENT_URI, null, null, null, null); 482 boolean hasData = c != null && c.moveToFirst(); 483 if (c != null) { 484 c.deactivate(); 485 } 486 if (!hasData) { 487 DemoDataSet dataset = new DemoDataSet(); 488 dataset.add(mContext); 489 } 490 } catch (Throwable e) { 491 Log.e("SystemServer", "Failure installing demo data", e); 492 } 493 494 } 495 496 Context mContext; 497} 498 499public class SystemServer 500{ 501 private static final String TAG = "SystemServer"; 502 503 public static final int FACTORY_TEST_OFF = 0; 504 public static final int FACTORY_TEST_LOW_LEVEL = 1; 505 public static final int FACTORY_TEST_HIGH_LEVEL = 2; 506 507 static Timer timer; 508 static final long SNAPSHOT_INTERVAL = 60 * 60 * 1000; // 1hr 509 510 /** 511 * This method is called from Zygote to initialize the system. This will cause the native 512 * services (SurfaceFlinger, AudioFlinger, etc..) to be started. After that it will call back 513 * up into init2() to start the Android services. 514 */ 515 native public static void init1(String[] args); 516 517 public static void main(String[] args) { 518 if (SamplingProfilerIntegration.isEnabled()) { 519 SamplingProfilerIntegration.start(); 520 timer = new Timer(); 521 timer.schedule(new TimerTask() { 522 @Override 523 public void run() { 524 SamplingProfilerIntegration.writeSnapshot("system_server"); 525 } 526 }, SNAPSHOT_INTERVAL, SNAPSHOT_INTERVAL); 527 } 528 529 // The system server has to run all of the time, so it needs to be 530 // as efficient as possible with its memory usage. 531 VMRuntime.getRuntime().setTargetHeapUtilization(0.8f); 532 VMRuntime.getRuntime().startJitCompilation(); 533 534 System.loadLibrary("android_servers"); 535 init1(args); 536 } 537 538 public static final void init2() { 539 Log.i(TAG, "Entered the Android system server!"); 540 Thread thr = new ServerThread(); 541 thr.setName("android.server.ServerThread"); 542 thr.start(); 543 } 544} 545