SystemServer.java revision 42471dd5552a346dd82a58a663159875ccc4fb79
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 StatusBarService statusBar = null; 205 InputMethodManagerService imm = null; 206 AppWidgetService appWidget = null; 207 NotificationManagerService notification = null; 208 WallpaperManagerService wallpaper = null; 209 210 if (factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL) { 211 try { 212 Log.i(TAG, "Status Bar"); 213 statusBar = new StatusBarService(context); 214 ServiceManager.addService("statusbar", statusBar); 215 } catch (Throwable e) { 216 Log.e(TAG, "Failure starting StatusBarService", e); 217 } 218 219 try { 220 Log.i(TAG, "Clipboard Service"); 221 ServiceManager.addService("clipboard", new ClipboardService(context)); 222 } catch (Throwable e) { 223 Log.e(TAG, "Failure starting Clipboard Service", e); 224 } 225 226 try { 227 Log.i(TAG, "Input Method Service"); 228 imm = new InputMethodManagerService(context, statusBar); 229 ServiceManager.addService(Context.INPUT_METHOD_SERVICE, imm); 230 } catch (Throwable e) { 231 Log.e(TAG, "Failure starting Input Manager Service", e); 232 } 233 234 try { 235 Log.i(TAG, "NetStat Service"); 236 ServiceManager.addService("netstat", new NetStatService(context)); 237 } catch (Throwable e) { 238 Log.e(TAG, "Failure starting NetStat Service", e); 239 } 240 241 try { 242 Log.i(TAG, "Connectivity Service"); 243 connectivity = ConnectivityService.getInstance(context); 244 ServiceManager.addService(Context.CONNECTIVITY_SERVICE, connectivity); 245 } catch (Throwable e) { 246 Log.e(TAG, "Failure starting Connectivity Service", e); 247 } 248 249 try { 250 Log.i(TAG, "Accessibility Manager"); 251 ServiceManager.addService(Context.ACCESSIBILITY_SERVICE, 252 new AccessibilityManagerService(context)); 253 } catch (Throwable e) { 254 Log.e(TAG, "Failure starting Accessibility Manager", e); 255 } 256 257 try { 258 Log.i(TAG, "Notification Manager"); 259 notification = new NotificationManagerService(context, statusBar, lights); 260 ServiceManager.addService(Context.NOTIFICATION_SERVICE, notification); 261 } catch (Throwable e) { 262 Log.e(TAG, "Failure starting Notification Manager", e); 263 } 264 265 try { 266 // MountService must start after NotificationManagerService 267 Log.i(TAG, "Mount Service"); 268 ServiceManager.addService("mount", new MountService(context)); 269 } catch (Throwable e) { 270 Log.e(TAG, "Failure starting Mount Service", e); 271 } 272 273 try { 274 Log.i(TAG, "Device Storage Monitor"); 275 ServiceManager.addService(DeviceStorageMonitorService.SERVICE, 276 new DeviceStorageMonitorService(context)); 277 } catch (Throwable e) { 278 Log.e(TAG, "Failure starting DeviceStorageMonitor service", e); 279 } 280 281 try { 282 Log.i(TAG, "Location Manager"); 283 ServiceManager.addService(Context.LOCATION_SERVICE, new LocationManagerService(context)); 284 } catch (Throwable e) { 285 Log.e(TAG, "Failure starting Location Manager", e); 286 } 287 288 try { 289 Log.i(TAG, "Search Service"); 290 ServiceManager.addService( Context.SEARCH_SERVICE, new SearchManagerService(context) ); 291 } catch (Throwable e) { 292 Log.e(TAG, "Failure starting Search Service", e); 293 } 294 295 if (INCLUDE_DEMO) { 296 Log.i(TAG, "Installing demo data..."); 297 (new DemoThread(context)).start(); 298 } 299 300 try { 301 Log.i(TAG, "DropBox Service"); 302 ServiceManager.addService(Context.DROPBOX_SERVICE, 303 new DropBoxManagerService(context, new File("/data/system/dropbox"))); 304 } catch (Throwable e) { 305 Log.e(TAG, "Failure starting DropBoxManagerService", e); 306 } 307 308 try { 309 Log.i(TAG, "Checkin Service"); 310 Intent intent = new Intent().setComponent(new ComponentName( 311 "com.google.android.server.checkin", 312 "com.google.android.server.checkin.CheckinService")); 313 if (context.startService(intent) == null) { 314 Log.w(TAG, "Using fallback Checkin Service."); 315 ServiceManager.addService("checkin", new FallbackCheckinService(context)); 316 } 317 } catch (Throwable e) { 318 Log.e(TAG, "Failure starting Checkin Service", e); 319 } 320 321 try { 322 Log.i(TAG, "Wallpaper Service"); 323 wallpaper = new WallpaperManagerService(context); 324 ServiceManager.addService(Context.WALLPAPER_SERVICE, wallpaper); 325 } catch (Throwable e) { 326 Log.e(TAG, "Failure starting Wallpaper Service", e); 327 } 328 329 try { 330 Log.i(TAG, "Audio Service"); 331 ServiceManager.addService(Context.AUDIO_SERVICE, new AudioService(context)); 332 } catch (Throwable e) { 333 Log.e(TAG, "Failure starting Audio Service", e); 334 } 335 336 try { 337 Log.i(TAG, "Headset Observer"); 338 // Listen for wired headset changes 339 headset = new HeadsetObserver(context); 340 } catch (Throwable e) { 341 Log.e(TAG, "Failure starting HeadsetObserver", e); 342 } 343 344 try { 345 Log.i(TAG, "Dock Observer"); 346 // Listen for dock station changes 347 dock = new DockObserver(context, power); 348 } catch (Throwable e) { 349 Log.e(TAG, "Failure starting DockObserver", e); 350 } 351 352 try { 353 Log.i(TAG, "Backup Service"); 354 ServiceManager.addService(Context.BACKUP_SERVICE, new BackupManagerService(context)); 355 } catch (Throwable e) { 356 Log.e(TAG, "Failure starting Backup Service", e); 357 } 358 359 try { 360 Log.i(TAG, "AppWidget Service"); 361 appWidget = new AppWidgetService(context); 362 ServiceManager.addService(Context.APPWIDGET_SERVICE, appWidget); 363 } catch (Throwable e) { 364 Log.e(TAG, "Failure starting AppWidget Service", e); 365 } 366 367 try { 368 com.android.server.status.StatusBarPolicy.installIcons(context, statusBar); 369 } catch (Throwable e) { 370 Log.e(TAG, "Failure installing status bar icons", e); 371 } 372 } 373 374 // make sure the ADB_ENABLED setting value matches the secure property value 375 Settings.Secure.putInt(mContentResolver, Settings.Secure.ADB_ENABLED, 376 "1".equals(SystemProperties.get("persist.service.adb.enable")) ? 1 : 0); 377 378 // register observer to listen for settings changes 379 mContentResolver.registerContentObserver(Settings.Secure.getUriFor(Settings.Secure.ADB_ENABLED), 380 false, new AdbSettingsObserver()); 381 382 // Before things start rolling, be sure we have decided whether 383 // we are in safe mode. 384 final boolean safeMode = wm.detectSafeMode(); 385 if (safeMode) { 386 try { 387 ActivityManagerNative.getDefault().enterSafeMode(); 388 } catch (RemoteException e) { 389 } 390 } 391 392 // It is now time to start up the app processes... 393 394 if (notification != null) { 395 notification.systemReady(); 396 } 397 398 if (statusBar != null) { 399 statusBar.systemReady(); 400 } 401 wm.systemReady(); 402 power.systemReady(); 403 try { 404 pm.systemReady(); 405 } catch (RemoteException e) { 406 } 407 408 // These are needed to propagate to the runnable below. 409 final BatteryService batteryF = battery; 410 final ConnectivityService connectivityF = connectivity; 411 final DockObserver dockF = dock; 412 final AppWidgetService appWidgetF = appWidget; 413 final WallpaperManagerService wallpaperF = wallpaper; 414 final InputMethodManagerService immF = imm; 415 416 // We now tell the activity manager it is okay to run third party 417 // code. It will call back into us once it has gotten to the state 418 // where third party code can really run (but before it has actually 419 // started launching the initial applications), for us to complete our 420 // initialization. 421 ((ActivityManagerService)ActivityManagerNative.getDefault()) 422 .systemReady(new Runnable() { 423 public void run() { 424 Log.i(TAG, "Making services ready"); 425 426 if (batteryF != null) batteryF.systemReady(); 427 if (connectivityF != null) connectivityF.systemReady(); 428 if (dockF != null) dockF.systemReady(); 429 Watchdog.getInstance().start(); 430 431 // It is now okay to let the various system services start their 432 // third party code... 433 434 if (appWidgetF != null) appWidgetF.systemReady(safeMode); 435 if (wallpaperF != null) wallpaperF.systemReady(); 436 if (immF != null) immF.systemReady(); 437 } 438 }); 439 440 Looper.loop(); 441 Log.d(TAG, "System ServerThread is exiting!"); 442 } 443} 444 445class DemoThread extends Thread 446{ 447 DemoThread(Context context) 448 { 449 mContext = context; 450 } 451 452 @Override 453 public void run() 454 { 455 try { 456 Cursor c = mContext.getContentResolver().query(People.CONTENT_URI, null, null, null, null); 457 boolean hasData = c != null && c.moveToFirst(); 458 if (c != null) { 459 c.deactivate(); 460 } 461 if (!hasData) { 462 DemoDataSet dataset = new DemoDataSet(); 463 dataset.add(mContext); 464 } 465 } catch (Throwable e) { 466 Log.e("SystemServer", "Failure installing demo data", e); 467 } 468 469 } 470 471 Context mContext; 472} 473 474public class SystemServer 475{ 476 private static final String TAG = "SystemServer"; 477 478 public static final int FACTORY_TEST_OFF = 0; 479 public static final int FACTORY_TEST_LOW_LEVEL = 1; 480 public static final int FACTORY_TEST_HIGH_LEVEL = 2; 481 482 static Timer timer; 483 static final long SNAPSHOT_INTERVAL = 60 * 60 * 1000; // 1hr 484 485 /** 486 * This method is called from Zygote to initialize the system. This will cause the native 487 * services (SurfaceFlinger, AudioFlinger, etc..) to be started. After that it will call back 488 * up into init2() to start the Android services. 489 */ 490 native public static void init1(String[] args); 491 492 public static void main(String[] args) { 493 if (SamplingProfilerIntegration.isEnabled()) { 494 SamplingProfilerIntegration.start(); 495 timer = new Timer(); 496 timer.schedule(new TimerTask() { 497 @Override 498 public void run() { 499 SamplingProfilerIntegration.writeSnapshot("system_server"); 500 } 501 }, SNAPSHOT_INTERVAL, SNAPSHOT_INTERVAL); 502 } 503 504 // The system server has to run all of the time, so it needs to be 505 // as efficient as possible with its memory usage. 506 VMRuntime.getRuntime().setTargetHeapUtilization(0.8f); 507 508 System.loadLibrary("android_servers"); 509 init1(args); 510 } 511 512 public static final void init2() { 513 Log.i(TAG, "Entered the Android system server!"); 514 Thread thr = new ServerThread(); 515 thr.setName("android.server.ServerThread"); 516 thr.start(); 517 } 518} 519