SystemServer.java revision 160edb3645f8b7012bab70ae6e6e8c4a5733082b
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.internal.os.BinderInternal; 21import com.android.internal.os.SamplingProfilerIntegration; 22 23import dalvik.system.VMRuntime; 24import dalvik.system.Zygote; 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.Slog; 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 android.os.Process.setCanSelfBackground(false); 84 85 String factoryTestStr = SystemProperties.get("ro.factorytest"); 86 int factoryTest = "".equals(factoryTestStr) ? SystemServer.FACTORY_TEST_OFF 87 : Integer.parseInt(factoryTestStr); 88 89 LightsService lights = null; 90 PowerManagerService power = null; 91 BatteryService battery = null; 92 ConnectivityService connectivity = null; 93 IPackageManager pm = null; 94 Context context = null; 95 WindowManagerService wm = null; 96 BluetoothService bluetooth = null; 97 BluetoothA2dpService bluetoothA2dp = null; 98 HeadsetObserver headset = null; 99 DockObserver dock = null; 100 UsbObserver usb = null; 101 UiModeManagerService uiMode = null; 102 RecognitionManagerService recognition = null; 103 ThrottleService throttle = null; 104 105 // Critical services... 106 try { 107 Slog.i(TAG, "Entropy Service"); 108 ServiceManager.addService("entropy", new EntropyService()); 109 110 Slog.i(TAG, "Power Manager"); 111 power = new PowerManagerService(); 112 ServiceManager.addService(Context.POWER_SERVICE, power); 113 114 Slog.i(TAG, "Activity Manager"); 115 context = ActivityManagerService.main(factoryTest); 116 117 Slog.i(TAG, "Telephony Registry"); 118 ServiceManager.addService("telephony.registry", new TelephonyRegistry(context)); 119 120 AttributeCache.init(context); 121 122 Slog.i(TAG, "Package Manager"); 123 pm = PackageManagerService.main(context, 124 factoryTest != SystemServer.FACTORY_TEST_OFF); 125 126 ActivityManagerService.setSystemProcess(); 127 128 mContentResolver = context.getContentResolver(); 129 130 // The AccountManager must come before the ContentService 131 try { 132 Slog.i(TAG, "Account Manager"); 133 ServiceManager.addService(Context.ACCOUNT_SERVICE, 134 new AccountManagerService(context)); 135 } catch (Throwable e) { 136 Slog.e(TAG, "Failure starting Account Manager", e); 137 } 138 139 Slog.i(TAG, "Content Manager"); 140 ContentService.main(context, 141 factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL); 142 143 Slog.i(TAG, "System Content Providers"); 144 ActivityManagerService.installSystemProviders(); 145 146 Slog.i(TAG, "Battery Service"); 147 battery = new BatteryService(context); 148 ServiceManager.addService("battery", battery); 149 150 Slog.i(TAG, "Lights Service"); 151 lights = new LightsService(context); 152 153 Slog.i(TAG, "Vibrator Service"); 154 ServiceManager.addService("vibrator", new VibratorService(context)); 155 156 // only initialize the power service after we have started the 157 // lights service, content providers and the battery service. 158 power.init(context, lights, ActivityManagerService.getDefault(), battery); 159 160 Slog.i(TAG, "Alarm Manager"); 161 AlarmManagerService alarm = new AlarmManagerService(context); 162 ServiceManager.addService(Context.ALARM_SERVICE, alarm); 163 164 Slog.i(TAG, "Init Watchdog"); 165 Watchdog.getInstance().init(context, battery, power, alarm, 166 ActivityManagerService.self()); 167 168 // Sensor Service is needed by Window Manager, so this goes first 169 Slog.i(TAG, "Sensor Service"); 170 ServiceManager.addService(Context.SENSOR_SERVICE, new SensorService(context)); 171 172 Slog.i(TAG, "Window Manager"); 173 wm = WindowManagerService.main(context, power, 174 factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL); 175 ServiceManager.addService(Context.WINDOW_SERVICE, wm); 176 177 ((ActivityManagerService)ServiceManager.getService("activity")) 178 .setWindowManager(wm); 179 180 // Skip Bluetooth if we have an emulator kernel 181 // TODO: Use a more reliable check to see if this product should 182 // support Bluetooth - see bug 988521 183 if (SystemProperties.get("ro.kernel.qemu").equals("1")) { 184 Slog.i(TAG, "Registering null Bluetooth Service (emulator)"); 185 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, null); 186 } else if (factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL) { 187 Slog.i(TAG, "Registering null Bluetooth Service (factory test)"); 188 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, null); 189 } else { 190 Slog.i(TAG, "Bluetooth Service"); 191 bluetooth = new BluetoothService(context); 192 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, bluetooth); 193 bluetooth.initAfterRegistration(); 194 bluetoothA2dp = new BluetoothA2dpService(context, bluetooth); 195 ServiceManager.addService(BluetoothA2dpService.BLUETOOTH_A2DP_SERVICE, 196 bluetoothA2dp); 197 198 int bluetoothOn = Settings.Secure.getInt(mContentResolver, 199 Settings.Secure.BLUETOOTH_ON, 0); 200 if (bluetoothOn > 0) { 201 bluetooth.enable(); 202 } 203 } 204 205 } catch (RuntimeException e) { 206 Slog.e("System", "Failure starting core service", e); 207 } 208 209 DevicePolicyManagerService devicePolicy = null; 210 StatusBarManagerService statusBar = null; 211 InputMethodManagerService imm = null; 212 AppWidgetService appWidget = null; 213 NotificationManagerService notification = null; 214 WallpaperManagerService wallpaper = null; 215 LocationManagerService location = null; 216 217 if (factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL) { 218 try { 219 Slog.i(TAG, "Device Policy"); 220 devicePolicy = new DevicePolicyManagerService(context); 221 ServiceManager.addService(Context.DEVICE_POLICY_SERVICE, devicePolicy); 222 } catch (Throwable e) { 223 Slog.e(TAG, "Failure starting DevicePolicyService", e); 224 } 225 226 try { 227 Slog.i(TAG, "Status Bar"); 228 statusBar = new StatusBarManagerService(context); 229 ServiceManager.addService(Context.STATUS_BAR_SERVICE, statusBar); 230 } catch (Throwable e) { 231 Slog.e(TAG, "Failure starting StatusBarManagerService", e); 232 } 233 234 try { 235 Slog.i(TAG, "Clipboard Service"); 236 ServiceManager.addService(Context.CLIPBOARD_SERVICE, 237 new ClipboardService(context)); 238 } catch (Throwable e) { 239 Slog.e(TAG, "Failure starting Clipboard Service", e); 240 } 241 242 try { 243 Slog.i(TAG, "Input Method Service"); 244 imm = new InputMethodManagerService(context, statusBar); 245 ServiceManager.addService(Context.INPUT_METHOD_SERVICE, imm); 246 } catch (Throwable e) { 247 Slog.e(TAG, "Failure starting Input Manager Service", e); 248 } 249 250 try { 251 Slog.i(TAG, "NetStat Service"); 252 ServiceManager.addService("netstat", new NetStatService(context)); 253 } catch (Throwable e) { 254 Slog.e(TAG, "Failure starting NetStat Service", e); 255 } 256 257 try { 258 Slog.i(TAG, "NetworkManagement Service"); 259 ServiceManager.addService( 260 Context.NETWORKMANAGEMENT_SERVICE, new NetworkManagementService(context)); 261 } catch (Throwable e) { 262 Slog.e(TAG, "Failure starting NetworkManagement Service", e); 263 } 264 265 try { 266 Slog.i(TAG, "Connectivity Service"); 267 connectivity = ConnectivityService.getInstance(context); 268 ServiceManager.addService(Context.CONNECTIVITY_SERVICE, connectivity); 269 } catch (Throwable e) { 270 Slog.e(TAG, "Failure starting Connectivity Service", e); 271 } 272 273 try { 274 Slog.i(TAG, "Throttle Service"); 275 throttle = new ThrottleService(context); 276 ServiceManager.addService( 277 Context.THROTTLE_SERVICE, throttle); 278 } catch (Throwable e) { 279 Slog.e(TAG, "Failure starting ThrottleService", e); 280 } 281 282 try { 283 Slog.i(TAG, "Accessibility Manager"); 284 ServiceManager.addService(Context.ACCESSIBILITY_SERVICE, 285 new AccessibilityManagerService(context)); 286 } catch (Throwable e) { 287 Slog.e(TAG, "Failure starting Accessibility Manager", e); 288 } 289 290 try { 291 /* 292 * NotificationManagerService is dependant on MountService, 293 * (for media / usb notifications) so we must start MountService first. 294 */ 295 Slog.i(TAG, "Mount Service"); 296 ServiceManager.addService("mount", new MountService(context)); 297 } catch (Throwable e) { 298 Slog.e(TAG, "Failure starting Mount Service", e); 299 } 300 301 try { 302 Slog.i(TAG, "Notification Manager"); 303 notification = new NotificationManagerService(context, statusBar, lights); 304 ServiceManager.addService(Context.NOTIFICATION_SERVICE, notification); 305 } catch (Throwable e) { 306 Slog.e(TAG, "Failure starting Notification Manager", e); 307 } 308 309 try { 310 Slog.i(TAG, "Device Storage Monitor"); 311 ServiceManager.addService(DeviceStorageMonitorService.SERVICE, 312 new DeviceStorageMonitorService(context)); 313 } catch (Throwable e) { 314 Slog.e(TAG, "Failure starting DeviceStorageMonitor service", e); 315 } 316 317 try { 318 Slog.i(TAG, "Location Manager"); 319 location = new LocationManagerService(context); 320 ServiceManager.addService(Context.LOCATION_SERVICE, location); 321 } catch (Throwable e) { 322 Slog.e(TAG, "Failure starting Location Manager", e); 323 } 324 325 try { 326 Slog.i(TAG, "Search Service"); 327 ServiceManager.addService(Context.SEARCH_SERVICE, 328 new SearchManagerService(context)); 329 } catch (Throwable e) { 330 Slog.e(TAG, "Failure starting Search Service", e); 331 } 332 333 if (INCLUDE_DEMO) { 334 Slog.i(TAG, "Installing demo data..."); 335 (new DemoThread(context)).start(); 336 } 337 338 try { 339 Slog.i(TAG, "DropBox Service"); 340 ServiceManager.addService(Context.DROPBOX_SERVICE, 341 new DropBoxManagerService(context, new File("/data/system/dropbox"))); 342 } catch (Throwable e) { 343 Slog.e(TAG, "Failure starting DropBoxManagerService", e); 344 } 345 346 try { 347 Slog.i(TAG, "Wallpaper Service"); 348 wallpaper = new WallpaperManagerService(context); 349 ServiceManager.addService(Context.WALLPAPER_SERVICE, wallpaper); 350 } catch (Throwable e) { 351 Slog.e(TAG, "Failure starting Wallpaper Service", e); 352 } 353 354 try { 355 Slog.i(TAG, "Audio Service"); 356 ServiceManager.addService(Context.AUDIO_SERVICE, new AudioService(context)); 357 } catch (Throwable e) { 358 Slog.e(TAG, "Failure starting Audio Service", e); 359 } 360 361 try { 362 Slog.i(TAG, "Headset Observer"); 363 // Listen for wired headset changes 364 headset = new HeadsetObserver(context); 365 } catch (Throwable e) { 366 Slog.e(TAG, "Failure starting HeadsetObserver", e); 367 } 368 369 try { 370 Slog.i(TAG, "Dock Observer"); 371 // Listen for dock station changes 372 dock = new DockObserver(context, power); 373 } catch (Throwable e) { 374 Slog.e(TAG, "Failure starting DockObserver", e); 375 } 376 377 try { 378 Slog.i(TAG, "USB Observer"); 379 // Listen for USB changes 380 usb = new UsbObserver(context); 381 } catch (Throwable e) { 382 Slog.e(TAG, "Failure starting UsbObserver", e); 383 } 384 385 try { 386 Slog.i(TAG, "UI Mode Manager Service"); 387 // Listen for UI mode changes 388 uiMode = new UiModeManagerService(context); 389 } catch (Throwable e) { 390 Slog.e(TAG, "Failure starting UiModeManagerService", e); 391 } 392 393 try { 394 Slog.i(TAG, "Backup Service"); 395 ServiceManager.addService(Context.BACKUP_SERVICE, 396 new BackupManagerService(context)); 397 } catch (Throwable e) { 398 Slog.e(TAG, "Failure starting Backup Service", e); 399 } 400 401 try { 402 Slog.i(TAG, "AppWidget Service"); 403 appWidget = new AppWidgetService(context); 404 ServiceManager.addService(Context.APPWIDGET_SERVICE, appWidget); 405 } catch (Throwable e) { 406 Slog.e(TAG, "Failure starting AppWidget Service", e); 407 } 408 409 try { 410 Slog.i(TAG, "Recognition Service"); 411 recognition = new RecognitionManagerService(context); 412 } catch (Throwable e) { 413 Slog.e(TAG, "Failure starting Recognition Service", e); 414 } 415 416 try { 417 Slog.i(TAG, "DiskStats Service"); 418 ServiceManager.addService("diskstats", new DiskStatsService(context)); 419 } catch (Throwable e) { 420 Slog.e(TAG, "Failure starting DiskStats Service", e); 421 } 422 } 423 424 // make sure the ADB_ENABLED setting value matches the secure property value 425 Settings.Secure.putInt(mContentResolver, Settings.Secure.ADB_ENABLED, 426 "1".equals(SystemProperties.get("persist.service.adb.enable")) ? 1 : 0); 427 428 // register observer to listen for settings changes 429 mContentResolver.registerContentObserver(Settings.Secure.getUriFor(Settings.Secure.ADB_ENABLED), 430 false, new AdbSettingsObserver()); 431 432 // Before things start rolling, be sure we have decided whether 433 // we are in safe mode. 434 final boolean safeMode = wm.detectSafeMode(); 435 if (safeMode) { 436 try { 437 ActivityManagerNative.getDefault().enterSafeMode(); 438 // Post the safe mode state in the Zygote class 439 Zygote.systemInSafeMode = true; 440 // Disable the JIT for the system_server process 441 VMRuntime.getRuntime().disableJitCompilation(); 442 } catch (RemoteException e) { 443 } 444 } else { 445 // Enable the JIT for the system_server process 446 VMRuntime.getRuntime().startJitCompilation(); 447 } 448 449 // It is now time to start up the app processes... 450 451 if (devicePolicy != null) { 452 devicePolicy.systemReady(); 453 } 454 455 if (notification != null) { 456 notification.systemReady(); 457 } 458 459 if (statusBar != null) { 460 statusBar.systemReady(); 461 } 462 wm.systemReady(); 463 power.systemReady(); 464 try { 465 pm.systemReady(); 466 } catch (RemoteException e) { 467 } 468 469 // These are needed to propagate to the runnable below. 470 final StatusBarManagerService statusBarF = statusBar; 471 final BatteryService batteryF = battery; 472 final ConnectivityService connectivityF = connectivity; 473 final DockObserver dockF = dock; 474 final UsbObserver usbF = usb; 475 final ThrottleService throttleF = throttle; 476 final UiModeManagerService uiModeF = uiMode; 477 final AppWidgetService appWidgetF = appWidget; 478 final WallpaperManagerService wallpaperF = wallpaper; 479 final InputMethodManagerService immF = imm; 480 final RecognitionManagerService recognitionF = recognition; 481 final LocationManagerService locationF = location; 482 483 // We now tell the activity manager it is okay to run third party 484 // code. It will call back into us once it has gotten to the state 485 // where third party code can really run (but before it has actually 486 // started launching the initial applications), for us to complete our 487 // initialization. 488 ((ActivityManagerService)ActivityManagerNative.getDefault()) 489 .systemReady(new Runnable() { 490 public void run() { 491 Slog.i(TAG, "Making services ready"); 492 493 if (statusBarF != null) statusBarF.systemReady2(); 494 if (batteryF != null) batteryF.systemReady(); 495 if (connectivityF != null) connectivityF.systemReady(); 496 if (dockF != null) dockF.systemReady(); 497 if (usbF != null) usbF.systemReady(); 498 if (uiModeF != null) uiModeF.systemReady(); 499 if (recognitionF != null) recognitionF.systemReady(); 500 Watchdog.getInstance().start(); 501 502 // It is now okay to let the various system services start their 503 // third party code... 504 505 if (appWidgetF != null) appWidgetF.systemReady(safeMode); 506 if (wallpaperF != null) wallpaperF.systemReady(); 507 if (immF != null) immF.systemReady(); 508 if (locationF != null) locationF.systemReady(); 509 if (throttleF != null) throttleF.systemReady(); 510 } 511 }); 512 513 Looper.loop(); 514 Slog.d(TAG, "System ServerThread is exiting!"); 515 } 516} 517 518class DemoThread extends Thread 519{ 520 DemoThread(Context context) 521 { 522 mContext = context; 523 } 524 525 @Override 526 public void run() 527 { 528 try { 529 Cursor c = mContext.getContentResolver().query(People.CONTENT_URI, null, null, null, null); 530 boolean hasData = c != null && c.moveToFirst(); 531 if (c != null) { 532 c.deactivate(); 533 } 534 if (!hasData) { 535 DemoDataSet dataset = new DemoDataSet(); 536 dataset.add(mContext); 537 } 538 } catch (Throwable e) { 539 Slog.e("SystemServer", "Failure installing demo data", e); 540 } 541 542 } 543 544 Context mContext; 545} 546 547public class SystemServer 548{ 549 private static final String TAG = "SystemServer"; 550 551 public static final int FACTORY_TEST_OFF = 0; 552 public static final int FACTORY_TEST_LOW_LEVEL = 1; 553 public static final int FACTORY_TEST_HIGH_LEVEL = 2; 554 555 static Timer timer; 556 static final long SNAPSHOT_INTERVAL = 60 * 60 * 1000; // 1hr 557 558 /** 559 * This method is called from Zygote to initialize the system. This will cause the native 560 * services (SurfaceFlinger, AudioFlinger, etc..) to be started. After that it will call back 561 * up into init2() to start the Android services. 562 */ 563 native public static void init1(String[] args); 564 565 public static void main(String[] args) { 566 if (SamplingProfilerIntegration.isEnabled()) { 567 SamplingProfilerIntegration.start(); 568 timer = new Timer(); 569 timer.schedule(new TimerTask() { 570 @Override 571 public void run() { 572 SamplingProfilerIntegration.writeSnapshot("system_server"); 573 } 574 }, SNAPSHOT_INTERVAL, SNAPSHOT_INTERVAL); 575 } 576 577 // The system server has to run all of the time, so it needs to be 578 // as efficient as possible with its memory usage. 579 VMRuntime.getRuntime().setTargetHeapUtilization(0.8f); 580 581 System.loadLibrary("android_servers"); 582 init1(args); 583 } 584 585 public static final void init2() { 586 Slog.i(TAG, "Entered the Android system server!"); 587 Thread thr = new ServerThread(); 588 thr.setName("android.server.ServerThread"); 589 thr.start(); 590 } 591} 592