SystemServer.java revision 1bf3f8be7c01aa77afc114e0728cb041e95640b1
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 /* 277 * NotificationManagerService is dependant on MountService, 278 * (for media / usb notifications) so we must start MountService first. 279 */ 280 Log.i(TAG, "Mount Service"); 281 ServiceManager.addService("mount", new MountService(context)); 282 } catch (Throwable e) { 283 Log.e(TAG, "Failure starting Mount Service", e); 284 } 285 286 try { 287 Log.i(TAG, "Notification Manager"); 288 notification = new NotificationManagerService(context, statusBar, lights); 289 ServiceManager.addService(Context.NOTIFICATION_SERVICE, notification); 290 } catch (Throwable e) { 291 Log.e(TAG, "Failure starting Notification Manager", e); 292 } 293 294 try { 295 Log.i(TAG, "Device Storage Monitor"); 296 ServiceManager.addService(DeviceStorageMonitorService.SERVICE, 297 new DeviceStorageMonitorService(context)); 298 } catch (Throwable e) { 299 Log.e(TAG, "Failure starting DeviceStorageMonitor service", e); 300 } 301 302 try { 303 Log.i(TAG, "Location Manager"); 304 ServiceManager.addService(Context.LOCATION_SERVICE, 305 new LocationManagerService(context)); 306 } catch (Throwable e) { 307 Log.e(TAG, "Failure starting Location Manager", e); 308 } 309 310 try { 311 Log.i(TAG, "Search Service"); 312 ServiceManager.addService(Context.SEARCH_SERVICE, 313 new SearchManagerService(context)); 314 } catch (Throwable e) { 315 Log.e(TAG, "Failure starting Search Service", e); 316 } 317 318 if (INCLUDE_DEMO) { 319 Log.i(TAG, "Installing demo data..."); 320 (new DemoThread(context)).start(); 321 } 322 323 try { 324 Log.i(TAG, "DropBox Service"); 325 ServiceManager.addService(Context.DROPBOX_SERVICE, 326 new DropBoxManagerService(context, new File("/data/system/dropbox"))); 327 } catch (Throwable e) { 328 Log.e(TAG, "Failure starting DropBoxManagerService", e); 329 } 330 331 try { 332 Log.i(TAG, "Checkin Service"); 333 Intent intent = new Intent().setComponent(new ComponentName( 334 "com.google.android.server.checkin", 335 "com.google.android.server.checkin.CheckinService")); 336 if (context.startService(intent) == null) { 337 Log.w(TAG, "Using fallback Checkin Service."); 338 ServiceManager.addService("checkin", new FallbackCheckinService(context)); 339 } 340 } catch (Throwable e) { 341 Log.e(TAG, "Failure starting Checkin Service", e); 342 } 343 344 try { 345 Log.i(TAG, "Wallpaper Service"); 346 wallpaper = new WallpaperManagerService(context); 347 ServiceManager.addService(Context.WALLPAPER_SERVICE, wallpaper); 348 } catch (Throwable e) { 349 Log.e(TAG, "Failure starting Wallpaper Service", e); 350 } 351 352 try { 353 Log.i(TAG, "Audio Service"); 354 ServiceManager.addService(Context.AUDIO_SERVICE, new AudioService(context)); 355 } catch (Throwable e) { 356 Log.e(TAG, "Failure starting Audio Service", e); 357 } 358 359 try { 360 Log.i(TAG, "Headset Observer"); 361 // Listen for wired headset changes 362 headset = new HeadsetObserver(context); 363 } catch (Throwable e) { 364 Log.e(TAG, "Failure starting HeadsetObserver", e); 365 } 366 367 try { 368 Log.i(TAG, "Dock Observer"); 369 // Listen for dock station changes 370 dock = new DockObserver(context, power); 371 } catch (Throwable e) { 372 Log.e(TAG, "Failure starting DockObserver", e); 373 } 374 375 try { 376 Log.i(TAG, "Backup Service"); 377 ServiceManager.addService(Context.BACKUP_SERVICE, 378 new BackupManagerService(context)); 379 } catch (Throwable e) { 380 Log.e(TAG, "Failure starting Backup Service", e); 381 } 382 383 try { 384 Log.i(TAG, "AppWidget Service"); 385 appWidget = new AppWidgetService(context); 386 ServiceManager.addService(Context.APPWIDGET_SERVICE, appWidget); 387 } catch (Throwable e) { 388 Log.e(TAG, "Failure starting AppWidget Service", e); 389 } 390 391 try { 392 com.android.server.status.StatusBarPolicy.installIcons(context, statusBar); 393 } catch (Throwable e) { 394 Log.e(TAG, "Failure installing status bar icons", e); 395 } 396 } 397 398 // make sure the ADB_ENABLED setting value matches the secure property value 399 Settings.Secure.putInt(mContentResolver, Settings.Secure.ADB_ENABLED, 400 "1".equals(SystemProperties.get("persist.service.adb.enable")) ? 1 : 0); 401 402 // register observer to listen for settings changes 403 mContentResolver.registerContentObserver(Settings.Secure.getUriFor(Settings.Secure.ADB_ENABLED), 404 false, new AdbSettingsObserver()); 405 406 // Before things start rolling, be sure we have decided whether 407 // we are in safe mode. 408 final boolean safeMode = wm.detectSafeMode(); 409 if (safeMode) { 410 try { 411 ActivityManagerNative.getDefault().enterSafeMode(); 412 } catch (RemoteException e) { 413 } 414 } 415 416 // It is now time to start up the app processes... 417 418 if (devicePolicy != null) { 419 devicePolicy.systemReady(); 420 } 421 422 if (notification != null) { 423 notification.systemReady(); 424 } 425 426 if (statusBar != null) { 427 statusBar.systemReady(); 428 } 429 wm.systemReady(); 430 power.systemReady(); 431 try { 432 pm.systemReady(); 433 } catch (RemoteException e) { 434 } 435 436 // These are needed to propagate to the runnable below. 437 final BatteryService batteryF = battery; 438 final ConnectivityService connectivityF = connectivity; 439 final DockObserver dockF = dock; 440 final AppWidgetService appWidgetF = appWidget; 441 final WallpaperManagerService wallpaperF = wallpaper; 442 final InputMethodManagerService immF = imm; 443 444 // We now tell the activity manager it is okay to run third party 445 // code. It will call back into us once it has gotten to the state 446 // where third party code can really run (but before it has actually 447 // started launching the initial applications), for us to complete our 448 // initialization. 449 ((ActivityManagerService)ActivityManagerNative.getDefault()) 450 .systemReady(new Runnable() { 451 public void run() { 452 Log.i(TAG, "Making services ready"); 453 454 if (batteryF != null) batteryF.systemReady(); 455 if (connectivityF != null) connectivityF.systemReady(); 456 if (dockF != null) dockF.systemReady(); 457 Watchdog.getInstance().start(); 458 459 // It is now okay to let the various system services start their 460 // third party code... 461 462 if (appWidgetF != null) appWidgetF.systemReady(safeMode); 463 if (wallpaperF != null) wallpaperF.systemReady(); 464 if (immF != null) immF.systemReady(); 465 } 466 }); 467 468 Looper.loop(); 469 Log.d(TAG, "System ServerThread is exiting!"); 470 } 471} 472 473class DemoThread extends Thread 474{ 475 DemoThread(Context context) 476 { 477 mContext = context; 478 } 479 480 @Override 481 public void run() 482 { 483 try { 484 Cursor c = mContext.getContentResolver().query(People.CONTENT_URI, null, null, null, null); 485 boolean hasData = c != null && c.moveToFirst(); 486 if (c != null) { 487 c.deactivate(); 488 } 489 if (!hasData) { 490 DemoDataSet dataset = new DemoDataSet(); 491 dataset.add(mContext); 492 } 493 } catch (Throwable e) { 494 Log.e("SystemServer", "Failure installing demo data", e); 495 } 496 497 } 498 499 Context mContext; 500} 501 502public class SystemServer 503{ 504 private static final String TAG = "SystemServer"; 505 506 public static final int FACTORY_TEST_OFF = 0; 507 public static final int FACTORY_TEST_LOW_LEVEL = 1; 508 public static final int FACTORY_TEST_HIGH_LEVEL = 2; 509 510 static Timer timer; 511 static final long SNAPSHOT_INTERVAL = 60 * 60 * 1000; // 1hr 512 513 /** 514 * This method is called from Zygote to initialize the system. This will cause the native 515 * services (SurfaceFlinger, AudioFlinger, etc..) to be started. After that it will call back 516 * up into init2() to start the Android services. 517 */ 518 native public static void init1(String[] args); 519 520 public static void main(String[] args) { 521 if (SamplingProfilerIntegration.isEnabled()) { 522 SamplingProfilerIntegration.start(); 523 timer = new Timer(); 524 timer.schedule(new TimerTask() { 525 @Override 526 public void run() { 527 SamplingProfilerIntegration.writeSnapshot("system_server"); 528 } 529 }, SNAPSHOT_INTERVAL, SNAPSHOT_INTERVAL); 530 } 531 532 // The system server has to run all of the time, so it needs to be 533 // as efficient as possible with its memory usage. 534 VMRuntime.getRuntime().setTargetHeapUtilization(0.8f); 535 VMRuntime.getRuntime().startJitCompilation(); 536 537 System.loadLibrary("android_servers"); 538 init1(args); 539 } 540 541 public static final void init2() { 542 Log.i(TAG, "Entered the Android system server!"); 543 Thread thr = new ServerThread(); 544 thr.setName("android.server.ServerThread"); 545 thr.start(); 546 } 547} 548