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 17 package com.android.server; 18 19 import com.android.server.am.ActivityManagerService; 20 import com.android.server.status.StatusBarService; 21 import com.android.internal.os.BinderInternal; 22 import com.android.internal.os.SamplingProfilerIntegration; 23 24 import dalvik.system.VMRuntime; 25 import dalvik.system.Zygote; 26 27 import android.app.ActivityManagerNative; 28 import android.bluetooth.BluetoothAdapter; 29 import android.content.ComponentName; 30 import android.content.ContentResolver; 31 import android.content.ContentService; 32 import android.content.Context; 33 import android.content.Intent; 34 import android.content.pm.IPackageManager; 35 import android.database.ContentObserver; 36 import android.database.Cursor; 37 import android.media.AudioService; 38 import android.os.*; 39 import android.provider.Contacts.People; 40 import android.provider.Settings; 41 import android.server.BluetoothA2dpService; 42 import android.server.BluetoothService; 43 import android.server.search.SearchManagerService; 44 import android.util.EventLog; 45 import android.util.Slog; 46 import android.accounts.AccountManagerService; 47 48 import java.io.File; 49 import java.util.Timer; 50 import java.util.TimerTask; 51 52 class ServerThread extends Thread { 53 private static final String TAG = "SystemServer"; 54 private final static boolean INCLUDE_DEMO = false; 55 56 private static final int LOG_BOOT_PROGRESS_SYSTEM_RUN = 3010; 57 58 private ContentResolver mContentResolver; 59 60 private class AdbSettingsObserver extends ContentObserver { 61 public AdbSettingsObserver() { 62 super(null); 63 } 64 @Override 65 public void onChange(boolean selfChange) { 66 boolean enableAdb = (Settings.Secure.getInt(mContentResolver, 67 Settings.Secure.ADB_ENABLED, 0) > 0); 68 // setting this secure property will start or stop adbd 69 SystemProperties.set("persist.service.adb.enable", enableAdb ? "1" : "0"); 70 } 71 } 72 73 @Override 74 public void run() { 75 EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_SYSTEM_RUN, 76 SystemClock.uptimeMillis()); 77 78 Looper.prepare(); 79 80 android.os.Process.setThreadPriority( 81 android.os.Process.THREAD_PRIORITY_FOREGROUND); 82 83 BinderInternal.disableBackgroundScheduling(true); 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 UiModeManagerService uiMode = null; 101 RecognitionManagerService recognition = null; 102 ThrottleService throttle = null; 103 104 // Critical services... 105 try { 106 Slog.i(TAG, "Entropy Service"); 107 ServiceManager.addService("entropy", new EntropyService()); 108 109 Slog.i(TAG, "Power Manager"); 110 power = new PowerManagerService(); 111 ServiceManager.addService(Context.POWER_SERVICE, power); 112 113 Slog.i(TAG, "Activity Manager"); 114 context = ActivityManagerService.main(factoryTest); 115 116 Slog.i(TAG, "Telephony Registry"); 117 ServiceManager.addService("telephony.registry", new TelephonyRegistry(context)); 118 119 AttributeCache.init(context); 120 121 Slog.i(TAG, "Package Manager"); 122 pm = PackageManagerService.main(context, 123 factoryTest != SystemServer.FACTORY_TEST_OFF); 124 125 ActivityManagerService.setSystemProcess(); 126 127 mContentResolver = context.getContentResolver(); 128 129 // The AccountManager must come before the ContentService 130 try { 131 Slog.i(TAG, "Account Manager"); 132 ServiceManager.addService(Context.ACCOUNT_SERVICE, 133 new AccountManagerService(context)); 134 } catch (Throwable e) { 135 Slog.e(TAG, "Failure starting Account Manager", e); 136 } 137 138 Slog.i(TAG, "Content Manager"); 139 ContentService.main(context, 140 factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL); 141 142 Slog.i(TAG, "System Content Providers"); 143 ActivityManagerService.installSystemProviders(); 144 145 Slog.i(TAG, "Battery Service"); 146 battery = new BatteryService(context); 147 ServiceManager.addService("battery", battery); 148 149 Slog.i(TAG, "Lights Service"); 150 lights = new LightsService(context); 151 152 Slog.i(TAG, "Vibrator Service"); 153 ServiceManager.addService("vibrator", new VibratorService(context)); 154 155 // only initialize the power service after we have started the 156 // lights service, content providers and the battery service. 157 power.init(context, lights, ActivityManagerService.getDefault(), battery); 158 159 Slog.i(TAG, "Alarm Manager"); 160 AlarmManagerService alarm = new AlarmManagerService(context); 161 ServiceManager.addService(Context.ALARM_SERVICE, alarm); 162 163 Slog.i(TAG, "Init Watchdog"); 164 Watchdog.getInstance().init(context, battery, power, alarm, 165 ActivityManagerService.self()); 166 167 // Sensor Service is needed by Window Manager, so this goes first 168 Slog.i(TAG, "Sensor Service"); 169 ServiceManager.addService(Context.SENSOR_SERVICE, new SensorService(context)); 170 171 Slog.i(TAG, "Window Manager"); 172 wm = WindowManagerService.main(context, power, 173 factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL); 174 ServiceManager.addService(Context.WINDOW_SERVICE, wm); 175 176 ((ActivityManagerService)ServiceManager.getService("activity")) 177 .setWindowManager(wm); 178 179 // Skip Bluetooth if we have an emulator kernel 180 // TODO: Use a more reliable check to see if this product should 181 // support Bluetooth - see bug 988521 182 if (SystemProperties.get("ro.kernel.qemu").equals("1")) { 183 Slog.i(TAG, "Registering null Bluetooth Service (emulator)"); 184 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, null); 185 } else if (factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL) { 186 Slog.i(TAG, "Registering null Bluetooth Service (factory test)"); 187 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, null); 188 } else { 189 Slog.i(TAG, "Bluetooth Service"); 190 bluetooth = new BluetoothService(context); 191 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, bluetooth); 192 bluetooth.initAfterRegistration(); 193 bluetoothA2dp = new BluetoothA2dpService(context, bluetooth); 194 ServiceManager.addService(BluetoothA2dpService.BLUETOOTH_A2DP_SERVICE, 195 bluetoothA2dp); 196 197 int bluetoothOn = Settings.Secure.getInt(mContentResolver, 198 Settings.Secure.BLUETOOTH_ON, 0); 199 if (bluetoothOn > 0) { 200 bluetooth.enable(); 201 } 202 } 203 204 } catch (RuntimeException e) { 205 Slog.e("System", "Failure starting core service", e); 206 } 207 208 DevicePolicyManagerService devicePolicy = null; 209 StatusBarService statusBar = null; 210 InputMethodManagerService imm = null; 211 AppWidgetService appWidget = null; 212 NotificationManagerService notification = null; 213 WallpaperManagerService wallpaper = null; 214 LocationManagerService location = null; 215 216 if (factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL) { 217 try { 218 Slog.i(TAG, "Device Policy"); 219 devicePolicy = new DevicePolicyManagerService(context); 220 ServiceManager.addService(Context.DEVICE_POLICY_SERVICE, devicePolicy); 221 } catch (Throwable e) { 222 Slog.e(TAG, "Failure starting DevicePolicyService", e); 223 } 224 225 try { 226 Slog.i(TAG, "Status Bar"); 227 statusBar = new StatusBarService(context); 228 ServiceManager.addService(Context.STATUS_BAR_SERVICE, statusBar); 229 } catch (Throwable e) { 230 Slog.e(TAG, "Failure starting StatusBarService", e); 231 } 232 233 try { 234 Slog.i(TAG, "Clipboard Service"); 235 ServiceManager.addService(Context.CLIPBOARD_SERVICE, 236 new ClipboardService(context)); 237 } catch (Throwable e) { 238 Slog.e(TAG, "Failure starting Clipboard Service", e); 239 } 240 241 try { 242 Slog.i(TAG, "Input Method Service"); 243 imm = new InputMethodManagerService(context, statusBar); 244 ServiceManager.addService(Context.INPUT_METHOD_SERVICE, imm); 245 } catch (Throwable e) { 246 Slog.e(TAG, "Failure starting Input Manager Service", e); 247 } 248 249 try { 250 Slog.i(TAG, "NetStat Service"); 251 ServiceManager.addService("netstat", new NetStatService(context)); 252 } catch (Throwable e) { 253 Slog.e(TAG, "Failure starting NetStat Service", e); 254 } 255 256 try { 257 Slog.i(TAG, "NetworkManagement Service"); 258 ServiceManager.addService( 259 Context.NETWORKMANAGEMENT_SERVICE, new NetworkManagementService(context)); 260 } catch (Throwable e) { 261 Slog.e(TAG, "Failure starting NetworkManagement Service", e); 262 } 263 264 try { 265 Slog.i(TAG, "Connectivity Service"); 266 connectivity = ConnectivityService.getInstance(context); 267 ServiceManager.addService(Context.CONNECTIVITY_SERVICE, connectivity); 268 } catch (Throwable e) { 269 Slog.e(TAG, "Failure starting Connectivity Service", e); 270 } 271 272 try { 273 Slog.i(TAG, "Throttle Service"); 274 throttle = new ThrottleService(context); 275 ServiceManager.addService( 276 Context.THROTTLE_SERVICE, throttle); 277 } catch (Throwable e) { 278 Slog.e(TAG, "Failure starting ThrottleService", e); 279 } 280 281 try { 282 Slog.i(TAG, "Accessibility Manager"); 283 ServiceManager.addService(Context.ACCESSIBILITY_SERVICE, 284 new AccessibilityManagerService(context)); 285 } catch (Throwable e) { 286 Slog.e(TAG, "Failure starting Accessibility Manager", e); 287 } 288 289 try { 290 /* 291 * NotificationManagerService is dependant on MountService, 292 * (for media / usb notifications) so we must start MountService first. 293 */ 294 Slog.i(TAG, "Mount Service"); 295 ServiceManager.addService("mount", new MountService(context)); 296 } catch (Throwable e) { 297 Slog.e(TAG, "Failure starting Mount Service", e); 298 } 299 300 try { 301 Slog.i(TAG, "Notification Manager"); 302 notification = new NotificationManagerService(context, statusBar, lights); 303 ServiceManager.addService(Context.NOTIFICATION_SERVICE, notification); 304 } catch (Throwable e) { 305 Slog.e(TAG, "Failure starting Notification Manager", e); 306 } 307 308 try { 309 Slog.i(TAG, "Device Storage Monitor"); 310 ServiceManager.addService(DeviceStorageMonitorService.SERVICE, 311 new DeviceStorageMonitorService(context)); 312 } catch (Throwable e) { 313 Slog.e(TAG, "Failure starting DeviceStorageMonitor service", e); 314 } 315 316 try { 317 Slog.i(TAG, "Location Manager"); 318 location = new LocationManagerService(context); 319 ServiceManager.addService(Context.LOCATION_SERVICE, location); 320 } catch (Throwable e) { 321 Slog.e(TAG, "Failure starting Location Manager", e); 322 } 323 324 try { 325 Slog.i(TAG, "Search Service"); 326 ServiceManager.addService(Context.SEARCH_SERVICE, 327 new SearchManagerService(context)); 328 } catch (Throwable e) { 329 Slog.e(TAG, "Failure starting Search Service", e); 330 } 331 332 if (INCLUDE_DEMO) { 333 Slog.i(TAG, "Installing demo data..."); 334 (new DemoThread(context)).start(); 335 } 336 337 try { 338 Slog.i(TAG, "DropBox Service"); 339 ServiceManager.addService(Context.DROPBOX_SERVICE, 340 new DropBoxManagerService(context, new File("/data/system/dropbox"))); 341 } catch (Throwable e) { 342 Slog.e(TAG, "Failure starting DropBoxManagerService", e); 343 } 344 345 try { 346 Slog.i(TAG, "Wallpaper Service"); 347 wallpaper = new WallpaperManagerService(context); 348 ServiceManager.addService(Context.WALLPAPER_SERVICE, wallpaper); 349 } catch (Throwable e) { 350 Slog.e(TAG, "Failure starting Wallpaper Service", e); 351 } 352 353 try { 354 Slog.i(TAG, "Audio Service"); 355 ServiceManager.addService(Context.AUDIO_SERVICE, new AudioService(context)); 356 } catch (Throwable e) { 357 Slog.e(TAG, "Failure starting Audio Service", e); 358 } 359 360 try { 361 Slog.i(TAG, "Headset Observer"); 362 // Listen for wired headset changes 363 headset = new HeadsetObserver(context); 364 } catch (Throwable e) { 365 Slog.e(TAG, "Failure starting HeadsetObserver", e); 366 } 367 368 try { 369 Slog.i(TAG, "Dock Observer"); 370 // Listen for dock station changes 371 dock = new DockObserver(context, power); 372 } catch (Throwable e) { 373 Slog.e(TAG, "Failure starting DockObserver", e); 374 } 375 376 try { 377 Slog.i(TAG, "UI Mode Manager Service"); 378 // Listen for dock station changes 379 uiMode = new UiModeManagerService(context); 380 } catch (Throwable e) { 381 Slog.e(TAG, "Failure starting UiModeManagerService", e); 382 } 383 384 try { 385 Slog.i(TAG, "Backup Service"); 386 ServiceManager.addService(Context.BACKUP_SERVICE, 387 new BackupManagerService(context)); 388 } catch (Throwable e) { 389 Slog.e(TAG, "Failure starting Backup Service", e); 390 } 391 392 try { 393 Slog.i(TAG, "AppWidget Service"); 394 appWidget = new AppWidgetService(context); 395 ServiceManager.addService(Context.APPWIDGET_SERVICE, appWidget); 396 } catch (Throwable e) { 397 Slog.e(TAG, "Failure starting AppWidget Service", e); 398 } 399 400 try { 401 Slog.i(TAG, "Recognition Service"); 402 recognition = new RecognitionManagerService(context); 403 } catch (Throwable e) { 404 Slog.e(TAG, "Failure starting Recognition Service", e); 405 } 406 407 try { 408 com.android.server.status.StatusBarPolicy.installIcons(context, statusBar); 409 } catch (Throwable e) { 410 Slog.e(TAG, "Failure installing status bar icons", e); 411 } 412 413 try { 414 Slog.i(TAG, "DiskStats Service"); 415 ServiceManager.addService("diskstats", new DiskStatsService(context)); 416 } catch (Throwable e) { 417 Slog.e(TAG, "Failure starting DiskStats Service", e); 418 } 419 } 420 421 // make sure the ADB_ENABLED setting value matches the secure property value 422 Settings.Secure.putInt(mContentResolver, Settings.Secure.ADB_ENABLED, 423 "1".equals(SystemProperties.get("persist.service.adb.enable")) ? 1 : 0); 424 425 // register observer to listen for settings changes 426 mContentResolver.registerContentObserver(Settings.Secure.getUriFor(Settings.Secure.ADB_ENABLED), 427 false, new AdbSettingsObserver()); 428 429 // Before things start rolling, be sure we have decided whether 430 // we are in safe mode. 431 final boolean safeMode = wm.detectSafeMode(); 432 if (safeMode) { 433 try { 434 ActivityManagerNative.getDefault().enterSafeMode(); 435 // Post the safe mode state in the Zygote class 436 Zygote.systemInSafeMode = true; 437 // Disable the JIT for the system_server process 438 VMRuntime.getRuntime().disableJitCompilation(); 439 } catch (RemoteException e) { 440 } 441 } else { 442 // Enable the JIT for the system_server process 443 VMRuntime.getRuntime().startJitCompilation(); 444 } 445 446 // It is now time to start up the app processes... 447 448 if (devicePolicy != null) { 449 devicePolicy.systemReady(); 450 } 451 452 if (notification != null) { 453 notification.systemReady(); 454 } 455 456 if (statusBar != null) { 457 statusBar.systemReady(); 458 } 459 wm.systemReady(); 460 power.systemReady(); 461 try { 462 pm.systemReady(); 463 } catch (RemoteException e) { 464 } 465 466 // These are needed to propagate to the runnable below. 467 final BatteryService batteryF = battery; 468 final ConnectivityService connectivityF = connectivity; 469 final DockObserver dockF = dock; 470 final ThrottleService throttleF = throttle; 471 final UiModeManagerService uiModeF = uiMode; 472 final AppWidgetService appWidgetF = appWidget; 473 final WallpaperManagerService wallpaperF = wallpaper; 474 final InputMethodManagerService immF = imm; 475 final RecognitionManagerService recognitionF = recognition; 476 final LocationManagerService locationF = location; 477 478 // We now tell the activity manager it is okay to run third party 479 // code. It will call back into us once it has gotten to the state 480 // where third party code can really run (but before it has actually 481 // started launching the initial applications), for us to complete our 482 // initialization. 483 ((ActivityManagerService)ActivityManagerNative.getDefault()) 484 .systemReady(new Runnable() { 485 public void run() { 486 Slog.i(TAG, "Making services ready"); 487 488 if (batteryF != null) batteryF.systemReady(); 489 if (connectivityF != null) connectivityF.systemReady(); 490 if (dockF != null) dockF.systemReady(); 491 if (uiModeF != null) uiModeF.systemReady(); 492 if (recognitionF != null) recognitionF.systemReady(); 493 Watchdog.getInstance().start(); 494 495 // It is now okay to let the various system services start their 496 // third party code... 497 498 if (appWidgetF != null) appWidgetF.systemReady(safeMode); 499 if (wallpaperF != null) wallpaperF.systemReady(); 500 if (immF != null) immF.systemReady(); 501 if (locationF != null) locationF.systemReady(); 502 if (throttleF != null) throttleF.systemReady(); 503 } 504 }); 505 506 Looper.loop(); 507 Slog.d(TAG, "System ServerThread is exiting!"); 508 } 509 } 510 511 class DemoThread extends Thread 512 { 513 DemoThread(Context context) 514 { 515 mContext = context; 516 } 517 518 @Override 519 public void run() 520 { 521 try { 522 Cursor c = mContext.getContentResolver().query(People.CONTENT_URI, null, null, null, null); 523 boolean hasData = c != null && c.moveToFirst(); 524 if (c != null) { 525 c.deactivate(); 526 } 527 if (!hasData) { 528 DemoDataSet dataset = new DemoDataSet(); 529 dataset.add(mContext); 530 } 531 } catch (Throwable e) { 532 Slog.e("SystemServer", "Failure installing demo data", e); 533 } 534 535 } 536 537 Context mContext; 538 } 539 540 public class SystemServer 541 { 542 private static final String TAG = "SystemServer"; 543 544 public static final int FACTORY_TEST_OFF = 0; 545 public static final int FACTORY_TEST_LOW_LEVEL = 1; 546 public static final int FACTORY_TEST_HIGH_LEVEL = 2; 547 548 static Timer timer; 549 static final long SNAPSHOT_INTERVAL = 60 * 60 * 1000; // 1hr 550 551 /** 552 * This method is called from Zygote to initialize the system. This will cause the native 553 * services (SurfaceFlinger, AudioFlinger, etc..) to be started. After that it will call back 554 * up into init2() to start the Android services. 555 */ 556 native public static void init1(String[] args); 557 558 public static void main(String[] args) { 559 if (SamplingProfilerIntegration.isEnabled()) { 560 SamplingProfilerIntegration.start(); 561 timer = new Timer(); 562 timer.schedule(new TimerTask() { 563 @Override 564 public void run() { 565 SamplingProfilerIntegration.writeSnapshot("system_server"); 566 } 567 }, SNAPSHOT_INTERVAL, SNAPSHOT_INTERVAL); 568 } 569 570 // The system server has to run all of the time, so it needs to be 571 // as efficient as possible with its memory usage. 572 VMRuntime.getRuntime().setTargetHeapUtilization(0.8f); 573 574 System.loadLibrary("android_servers"); 575 init1(args); 576 } 577 578 public static final void init2() { 579 Slog.i(TAG, "Entered the Android system server!"); 580 Thread thr = new ServerThread(); 581 thr.setName("android.server.ServerThread"); 582 thr.start(); 583 } 584 } 585
