SystemServer.java revision 887f355f99ff83d568ef2885a4fdcaae475583df
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 ActivityManagerService.prepareTraceFile(false); // create dir 78 79 Looper.prepare(); 80 81 android.os.Process.setThreadPriority( 82 android.os.Process.THREAD_PRIORITY_FOREGROUND); 83 84 BinderInternal.disableBackgroundScheduling(true); 85 86 String factoryTestStr = SystemProperties.get("ro.factorytest"); 87 int factoryTest = "".equals(factoryTestStr) ? SystemServer.FACTORY_TEST_OFF 88 : Integer.parseInt(factoryTestStr); 89 90 LightsService lights = null; 91 PowerManagerService power = null; 92 BatteryService battery = null; 93 ConnectivityService connectivity = null; 94 IPackageManager pm = null; 95 Context context = null; 96 WindowManagerService wm = null; 97 BluetoothService bluetooth = null; 98 BluetoothA2dpService bluetoothA2dp = null; 99 HeadsetObserver headset = null; 100 DockObserver dock = null; 101 102 // Critical services... 103 try { 104 Log.i(TAG, "Entropy Service"); 105 ServiceManager.addService("entropy", new EntropyService()); 106 107 Log.i(TAG, "Power Manager"); 108 power = new PowerManagerService(); 109 ServiceManager.addService(Context.POWER_SERVICE, power); 110 111 Log.i(TAG, "Activity Manager"); 112 context = ActivityManagerService.main(factoryTest); 113 114 Log.i(TAG, "Telephony Registry"); 115 ServiceManager.addService("telephony.registry", new TelephonyRegistry(context)); 116 117 AttributeCache.init(context); 118 119 Log.i(TAG, "Package Manager"); 120 pm = PackageManagerService.main(context, 121 factoryTest != SystemServer.FACTORY_TEST_OFF); 122 123 ActivityManagerService.setSystemProcess(); 124 125 mContentResolver = context.getContentResolver(); 126 127 // The AccountManager must come before the ContentService 128 try { 129 Log.i(TAG, "Account Manager"); 130 ServiceManager.addService(Context.ACCOUNT_SERVICE, 131 new AccountManagerService(context)); 132 } catch (Throwable e) { 133 Log.e(TAG, "Failure starting Account Manager", e); 134 } 135 136 Log.i(TAG, "Content Manager"); 137 ContentService.main(context, 138 factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL); 139 140 Log.i(TAG, "System Content Providers"); 141 ActivityManagerService.installSystemProviders(); 142 143 Log.i(TAG, "Battery Service"); 144 battery = new BatteryService(context); 145 ServiceManager.addService("battery", battery); 146 147 Log.i(TAG, "Lights Service"); 148 lights = new LightsService(context); 149 150 Log.i(TAG, "Vibrator Service"); 151 ServiceManager.addService("vibrator", new VibratorService(context)); 152 153 // only initialize the power service after we have started the 154 // lights service, content providers and the battery service. 155 power.init(context, lights, ActivityManagerService.getDefault(), battery); 156 157 Log.i(TAG, "Alarm Manager"); 158 AlarmManagerService alarm = new AlarmManagerService(context); 159 ServiceManager.addService(Context.ALARM_SERVICE, alarm); 160 161 Log.i(TAG, "Init Watchdog"); 162 Watchdog.getInstance().init(context, battery, power, alarm, 163 ActivityManagerService.self()); 164 165 // Sensor Service is needed by Window Manager, so this goes first 166 Log.i(TAG, "Sensor Service"); 167 ServiceManager.addService(Context.SENSOR_SERVICE, new SensorService(context)); 168 169 Log.i(TAG, "Window Manager"); 170 wm = WindowManagerService.main(context, power, 171 factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL); 172 ServiceManager.addService(Context.WINDOW_SERVICE, wm); 173 174 ((ActivityManagerService)ServiceManager.getService("activity")) 175 .setWindowManager(wm); 176 177 // Skip Bluetooth if we have an emulator kernel 178 // TODO: Use a more reliable check to see if this product should 179 // support Bluetooth - see bug 988521 180 if (SystemProperties.get("ro.kernel.qemu").equals("1")) { 181 Log.i(TAG, "Registering null Bluetooth Service (emulator)"); 182 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, null); 183 } else if (factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL) { 184 Log.i(TAG, "Registering null Bluetooth Service (factory test)"); 185 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, null); 186 } else { 187 Log.i(TAG, "Bluetooth Service"); 188 bluetooth = new BluetoothService(context); 189 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, bluetooth); 190 bluetooth.initAfterRegistration(); 191 bluetoothA2dp = new BluetoothA2dpService(context, bluetooth); 192 ServiceManager.addService(BluetoothA2dpService.BLUETOOTH_A2DP_SERVICE, 193 bluetoothA2dp); 194 195 int bluetoothOn = Settings.Secure.getInt(mContentResolver, 196 Settings.Secure.BLUETOOTH_ON, 0); 197 if (bluetoothOn > 0) { 198 bluetooth.enable(); 199 } 200 } 201 202 } catch (RuntimeException e) { 203 Log.e("System", "Failure starting core service", e); 204 } 205 206 StatusBarService statusBar = null; 207 InputMethodManagerService imm = null; 208 AppWidgetService appWidget = null; 209 NotificationManagerService notification = null; 210 WallpaperManagerService wallpaper = null; 211 212 if (factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL) { 213 try { 214 Log.i(TAG, "Status Bar"); 215 statusBar = new StatusBarService(context); 216 ServiceManager.addService("statusbar", statusBar); 217 } catch (Throwable e) { 218 Log.e(TAG, "Failure starting StatusBarService", e); 219 } 220 221 try { 222 Log.i(TAG, "Clipboard Service"); 223 ServiceManager.addService("clipboard", new ClipboardService(context)); 224 } catch (Throwable e) { 225 Log.e(TAG, "Failure starting Clipboard Service", e); 226 } 227 228 try { 229 Log.i(TAG, "Input Method Service"); 230 imm = new InputMethodManagerService(context, statusBar); 231 ServiceManager.addService(Context.INPUT_METHOD_SERVICE, imm); 232 } catch (Throwable e) { 233 Log.e(TAG, "Failure starting Input Manager Service", e); 234 } 235 236 try { 237 Log.i(TAG, "NetStat Service"); 238 ServiceManager.addService("netstat", new NetStatService(context)); 239 } catch (Throwable e) { 240 Log.e(TAG, "Failure starting NetStat Service", e); 241 } 242 243 try { 244 Log.i(TAG, "Connectivity Service"); 245 connectivity = ConnectivityService.getInstance(context); 246 ServiceManager.addService(Context.CONNECTIVITY_SERVICE, connectivity); 247 } catch (Throwable e) { 248 Log.e(TAG, "Failure starting Connectivity Service", e); 249 } 250 251 try { 252 Log.i(TAG, "Accessibility Manager"); 253 ServiceManager.addService(Context.ACCESSIBILITY_SERVICE, 254 new AccessibilityManagerService(context)); 255 } catch (Throwable e) { 256 Log.e(TAG, "Failure starting Accessibility Manager", e); 257 } 258 259 try { 260 Log.i(TAG, "Notification Manager"); 261 notification = new NotificationManagerService(context, statusBar, lights); 262 ServiceManager.addService(Context.NOTIFICATION_SERVICE, notification); 263 } catch (Throwable e) { 264 Log.e(TAG, "Failure starting Notification Manager", e); 265 } 266 267 try { 268 // MountService must start after NotificationManagerService 269 Log.i(TAG, "Mount Service"); 270 ServiceManager.addService("mount", new MountService(context)); 271 } catch (Throwable e) { 272 Log.e(TAG, "Failure starting Mount Service", e); 273 } 274 275 try { 276 Log.i(TAG, "Device Storage Monitor"); 277 ServiceManager.addService(DeviceStorageMonitorService.SERVICE, 278 new DeviceStorageMonitorService(context)); 279 } catch (Throwable e) { 280 Log.e(TAG, "Failure starting DeviceStorageMonitor service", e); 281 } 282 283 try { 284 Log.i(TAG, "Location Manager"); 285 ServiceManager.addService(Context.LOCATION_SERVICE, new LocationManagerService(context)); 286 } catch (Throwable e) { 287 Log.e(TAG, "Failure starting Location Manager", e); 288 } 289 290 try { 291 Log.i(TAG, "Search Service"); 292 ServiceManager.addService( Context.SEARCH_SERVICE, new SearchManagerService(context) ); 293 } catch (Throwable e) { 294 Log.e(TAG, "Failure starting Search Service", e); 295 } 296 297 if (INCLUDE_DEMO) { 298 Log.i(TAG, "Installing demo data..."); 299 (new DemoThread(context)).start(); 300 } 301 302 try { 303 Log.i(TAG, "DropBox Service"); 304 ServiceManager.addService(Context.DROPBOX_SERVICE, 305 new DropBoxManagerService(context, new File("/data/system/dropbox"))); 306 } catch (Throwable e) { 307 Log.e(TAG, "Failure starting DropBoxManagerService", e); 308 } 309 310 try { 311 Log.i(TAG, "Checkin Service"); 312 Intent intent = new Intent().setComponent(new ComponentName( 313 "com.google.android.server.checkin", 314 "com.google.android.server.checkin.CheckinService")); 315 if (context.startService(intent) == null) { 316 Log.w(TAG, "Using fallback Checkin Service."); 317 ServiceManager.addService("checkin", new FallbackCheckinService(context)); 318 } 319 } catch (Throwable e) { 320 Log.e(TAG, "Failure starting Checkin Service", e); 321 } 322 323 try { 324 Log.i(TAG, "Wallpaper Service"); 325 wallpaper = new WallpaperManagerService(context); 326 ServiceManager.addService(Context.WALLPAPER_SERVICE, wallpaper); 327 } catch (Throwable e) { 328 Log.e(TAG, "Failure starting Wallpaper Service", e); 329 } 330 331 try { 332 Log.i(TAG, "Audio Service"); 333 ServiceManager.addService(Context.AUDIO_SERVICE, new AudioService(context)); 334 } catch (Throwable e) { 335 Log.e(TAG, "Failure starting Audio Service", e); 336 } 337 338 try { 339 Log.i(TAG, "Headset Observer"); 340 // Listen for wired headset changes 341 headset = new HeadsetObserver(context); 342 } catch (Throwable e) { 343 Log.e(TAG, "Failure starting HeadsetObserver", e); 344 } 345 346 try { 347 Log.i(TAG, "Dock Observer"); 348 // Listen for dock station changes 349 dock = new DockObserver(context, power); 350 } catch (Throwable e) { 351 Log.e(TAG, "Failure starting DockObserver", e); 352 } 353 354 try { 355 Log.i(TAG, "Backup Service"); 356 ServiceManager.addService(Context.BACKUP_SERVICE, new BackupManagerService(context)); 357 } catch (Throwable e) { 358 Log.e(TAG, "Failure starting Backup Service", e); 359 } 360 361 try { 362 Log.i(TAG, "AppWidget Service"); 363 appWidget = new AppWidgetService(context); 364 ServiceManager.addService(Context.APPWIDGET_SERVICE, appWidget); 365 } catch (Throwable e) { 366 Log.e(TAG, "Failure starting AppWidget Service", e); 367 } 368 369 try { 370 com.android.server.status.StatusBarPolicy.installIcons(context, statusBar); 371 } catch (Throwable e) { 372 Log.e(TAG, "Failure installing status bar icons", e); 373 } 374 } 375 376 // make sure the ADB_ENABLED setting value matches the secure property value 377 Settings.Secure.putInt(mContentResolver, Settings.Secure.ADB_ENABLED, 378 "1".equals(SystemProperties.get("persist.service.adb.enable")) ? 1 : 0); 379 380 // register observer to listen for settings changes 381 mContentResolver.registerContentObserver(Settings.Secure.getUriFor(Settings.Secure.ADB_ENABLED), 382 false, new AdbSettingsObserver()); 383 384 // Before things start rolling, be sure we have decided whether 385 // we are in safe mode. 386 final boolean safeMode = wm.detectSafeMode(); 387 if (safeMode) { 388 try { 389 ActivityManagerNative.getDefault().enterSafeMode(); 390 } catch (RemoteException e) { 391 } 392 } 393 394 // It is now time to start up the app processes... 395 396 if (notification != null) { 397 notification.systemReady(); 398 } 399 400 if (statusBar != null) { 401 statusBar.systemReady(); 402 } 403 wm.systemReady(); 404 power.systemReady(); 405 try { 406 pm.systemReady(); 407 } catch (RemoteException e) { 408 } 409 410 // These are needed to propagate to the runnable below. 411 final BatteryService batteryF = battery; 412 final ConnectivityService connectivityF = connectivity; 413 final DockObserver dockF = dock; 414 final AppWidgetService appWidgetF = appWidget; 415 final WallpaperManagerService wallpaperF = wallpaper; 416 final InputMethodManagerService immF = imm; 417 418 // We now tell the activity manager it is okay to run third party 419 // code. It will call back into us once it has gotten to the state 420 // where third party code can really run (but before it has actually 421 // started launching the initial applications), for us to complete our 422 // initialization. 423 ((ActivityManagerService)ActivityManagerNative.getDefault()) 424 .systemReady(new Runnable() { 425 public void run() { 426 Log.i(TAG, "Making services ready"); 427 428 if (batteryF != null) batteryF.systemReady(); 429 if (connectivityF != null) connectivityF.systemReady(); 430 if (dockF != null) dockF.systemReady(); 431 Watchdog.getInstance().start(); 432 433 // It is now okay to let the various system services start their 434 // third party code... 435 436 if (appWidgetF != null) appWidgetF.systemReady(safeMode); 437 if (wallpaperF != null) wallpaperF.systemReady(); 438 if (immF != null) immF.systemReady(); 439 } 440 }); 441 442 Looper.loop(); 443 Log.d(TAG, "System ServerThread is exiting!"); 444 } 445} 446 447class DemoThread extends Thread 448{ 449 DemoThread(Context context) 450 { 451 mContext = context; 452 } 453 454 @Override 455 public void run() 456 { 457 try { 458 Cursor c = mContext.getContentResolver().query(People.CONTENT_URI, null, null, null, null); 459 boolean hasData = c != null && c.moveToFirst(); 460 if (c != null) { 461 c.deactivate(); 462 } 463 if (!hasData) { 464 DemoDataSet dataset = new DemoDataSet(); 465 dataset.add(mContext); 466 } 467 } catch (Throwable e) { 468 Log.e("SystemServer", "Failure installing demo data", e); 469 } 470 471 } 472 473 Context mContext; 474} 475 476public class SystemServer 477{ 478 private static final String TAG = "SystemServer"; 479 480 public static final int FACTORY_TEST_OFF = 0; 481 public static final int FACTORY_TEST_LOW_LEVEL = 1; 482 public static final int FACTORY_TEST_HIGH_LEVEL = 2; 483 484 static Timer timer; 485 static final long SNAPSHOT_INTERVAL = 60 * 60 * 1000; // 1hr 486 487 /** 488 * This method is called from Zygote to initialize the system. This will cause the native 489 * services (SurfaceFlinger, AudioFlinger, etc..) to be started. After that it will call back 490 * up into init2() to start the Android services. 491 */ 492 native public static void init1(String[] args); 493 494 public static void main(String[] args) { 495 if (SamplingProfilerIntegration.isEnabled()) { 496 SamplingProfilerIntegration.start(); 497 timer = new Timer(); 498 timer.schedule(new TimerTask() { 499 @Override 500 public void run() { 501 SamplingProfilerIntegration.writeSnapshot("system_server"); 502 } 503 }, SNAPSHOT_INTERVAL, SNAPSHOT_INTERVAL); 504 } 505 506 // The system server has to run all of the time, so it needs to be 507 // as efficient as possible with its memory usage. 508 VMRuntime.getRuntime().setTargetHeapUtilization(0.8f); 509 510 System.loadLibrary("android_servers"); 511 init1(args); 512 } 513 514 public static final void init2() { 515 Log.i(TAG, "Entered the Android system server!"); 516 Thread thr = new ServerThread(); 517 thr.setName("android.server.ServerThread"); 518 thr.start(); 519 } 520} 521