SystemServer.java revision a34f1ad7c3a68d971e6332aa2fb1c16d083920b3
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; 21 22import dalvik.system.VMRuntime; 23 24import android.app.ActivityManagerNative; 25import android.content.ComponentName; 26import android.content.ContentResolver; 27import android.content.ContentService; 28import android.content.Context; 29import android.content.Intent; 30import android.content.pm.IPackageManager; 31import android.database.ContentObserver; 32import android.database.Cursor; 33import android.media.AudioService; 34import android.os.*; 35import android.provider.Contacts.People; 36import android.provider.Settings; 37import android.server.BluetoothA2dpService; 38import android.server.BluetoothService; 39import android.server.search.SearchManagerService; 40import android.util.EventLog; 41import android.util.Log; 42import android.accounts.AccountManagerService; 43 44class ServerThread extends Thread { 45 private static final String TAG = "SystemServer"; 46 private final static boolean INCLUDE_DEMO = false; 47 48 private static final int LOG_BOOT_PROGRESS_SYSTEM_RUN = 3010; 49 50 private ContentResolver mContentResolver; 51 52 private class AdbSettingsObserver extends ContentObserver { 53 public AdbSettingsObserver() { 54 super(null); 55 } 56 @Override 57 public void onChange(boolean selfChange) { 58 boolean enableAdb = (Settings.Secure.getInt(mContentResolver, 59 Settings.Secure.ADB_ENABLED, 0) > 0); 60 // setting this secure property will start or stop adbd 61 SystemProperties.set("persist.service.adb.enable", enableAdb ? "1" : "0"); 62 } 63 } 64 65 @Override 66 public void run() { 67 EventLog.writeEvent(LOG_BOOT_PROGRESS_SYSTEM_RUN, 68 SystemClock.uptimeMillis()); 69 70 ActivityManagerService.prepareTraceFile(false); // create dir 71 72 Looper.prepare(); 73 74 android.os.Process.setThreadPriority( 75 android.os.Process.THREAD_PRIORITY_FOREGROUND); 76 77 String factoryTestStr = SystemProperties.get("ro.factorytest"); 78 int factoryTest = "".equals(factoryTestStr) ? SystemServer.FACTORY_TEST_OFF 79 : Integer.parseInt(factoryTestStr); 80 81 HardwareService hardware = null; 82 PowerManagerService power = null; 83 BatteryService battery = null; 84 ConnectivityService connectivity = null; 85 IPackageManager pm = null; 86 Context context = null; 87 WindowManagerService wm = null; 88 BluetoothService bluetooth = null; 89 BluetoothA2dpService bluetoothA2dp = null; 90 HeadsetObserver headset = null; 91 DockObserver dock = null; 92 93 // Critical services... 94 try { 95 Log.i(TAG, "Entropy Service"); 96 ServiceManager.addService("entropy", new EntropyService()); 97 98 Log.i(TAG, "Power Manager"); 99 power = new PowerManagerService(); 100 ServiceManager.addService(Context.POWER_SERVICE, power); 101 102 Log.i(TAG, "Activity Manager"); 103 context = ActivityManagerService.main(factoryTest); 104 105 Log.i(TAG, "Telephony Registry"); 106 ServiceManager.addService("telephony.registry", new TelephonyRegistry(context)); 107 108 AttributeCache.init(context); 109 110 Log.i(TAG, "Package Manager"); 111 pm = PackageManagerService.main(context, 112 factoryTest != SystemServer.FACTORY_TEST_OFF); 113 114 ActivityManagerService.setSystemProcess(); 115 116 mContentResolver = context.getContentResolver(); 117 118 try { 119 Log.i(TAG, "Account Manager"); 120 ServiceManager.addService(Context.ACCOUNT_SERVICE, 121 new AccountManagerService(context)); 122 } catch (Throwable e) { 123 Log.e(TAG, "Failure starting Account Manager", e); 124 } 125 126 Log.i(TAG, "Content Manager"); 127 ContentService.main(context, 128 factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL); 129 130 Log.i(TAG, "System Content Providers"); 131 ActivityManagerService.installSystemProviders(); 132 133 Log.i(TAG, "Battery Service"); 134 battery = new BatteryService(context); 135 ServiceManager.addService("battery", battery); 136 137 Log.i(TAG, "Hardware Service"); 138 hardware = new HardwareService(context); 139 ServiceManager.addService("hardware", hardware); 140 141 // only initialize the power service after we have started the 142 // hardware service, content providers and the battery service. 143 power.init(context, hardware, ActivityManagerService.getDefault(), battery); 144 145 Log.i(TAG, "Alarm Manager"); 146 AlarmManagerService alarm = new AlarmManagerService(context); 147 ServiceManager.addService(Context.ALARM_SERVICE, alarm); 148 149 Log.i(TAG, "Init Watchdog"); 150 Watchdog.getInstance().init(context, battery, power, alarm, 151 ActivityManagerService.self()); 152 153 // Sensor Service is needed by Window Manager, so this goes first 154 Log.i(TAG, "Sensor Service"); 155 ServiceManager.addService(Context.SENSOR_SERVICE, new SensorService(context)); 156 157 Log.i(TAG, "Window Manager"); 158 wm = WindowManagerService.main(context, power, 159 factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL); 160 ServiceManager.addService(Context.WINDOW_SERVICE, wm); 161 162 ((ActivityManagerService)ServiceManager.getService("activity")) 163 .setWindowManager(wm); 164 165 // Skip Bluetooth if we have an emulator kernel 166 // TODO: Use a more reliable check to see if this product should 167 // support Bluetooth - see bug 988521 168 if (SystemProperties.get("ro.kernel.qemu").equals("1")) { 169 Log.i(TAG, "Registering null Bluetooth Service (emulator)"); 170 ServiceManager.addService(Context.BLUETOOTH_SERVICE, null); 171 } else if (factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL) { 172 Log.i(TAG, "Registering null Bluetooth Service (factory test)"); 173 ServiceManager.addService(Context.BLUETOOTH_SERVICE, null); 174 } else { 175 Log.i(TAG, "Bluetooth Service"); 176 bluetooth = new BluetoothService(context); 177 ServiceManager.addService(Context.BLUETOOTH_SERVICE, bluetooth); 178 bluetooth.initAfterRegistration(); 179 bluetoothA2dp = new BluetoothA2dpService(context, bluetooth); 180 ServiceManager.addService(BluetoothA2dpService.BLUETOOTH_A2DP_SERVICE, 181 bluetoothA2dp); 182 183 int bluetoothOn = Settings.Secure.getInt(mContentResolver, 184 Settings.Secure.BLUETOOTH_ON, 0); 185 if (bluetoothOn > 0) { 186 bluetooth.enable(); 187 } 188 } 189 190 } catch (RuntimeException e) { 191 Log.e("System", "Failure starting core service", e); 192 } 193 194 StatusBarService statusBar = null; 195 InputMethodManagerService imm = null; 196 AppWidgetService appWidget = null; 197 NotificationManagerService notification = null; 198 WallpaperManagerService wallpaper = null; 199 200 if (factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL) { 201 try { 202 Log.i(TAG, "Status Bar"); 203 statusBar = new StatusBarService(context); 204 ServiceManager.addService("statusbar", statusBar); 205 } catch (Throwable e) { 206 Log.e(TAG, "Failure starting StatusBarService", e); 207 } 208 209 try { 210 Log.i(TAG, "Clipboard Service"); 211 ServiceManager.addService("clipboard", new ClipboardService(context)); 212 } catch (Throwable e) { 213 Log.e(TAG, "Failure starting Clipboard Service", e); 214 } 215 216 try { 217 Log.i(TAG, "Input Method Service"); 218 imm = new InputMethodManagerService(context, statusBar); 219 ServiceManager.addService(Context.INPUT_METHOD_SERVICE, imm); 220 } catch (Throwable e) { 221 Log.e(TAG, "Failure starting Input Manager Service", e); 222 } 223 224 try { 225 Log.i(TAG, "NetStat Service"); 226 ServiceManager.addService("netstat", new NetStatService(context)); 227 } catch (Throwable e) { 228 Log.e(TAG, "Failure starting NetStat Service", e); 229 } 230 231 try { 232 Log.i(TAG, "Connectivity Service"); 233 connectivity = ConnectivityService.getInstance(context); 234 ServiceManager.addService(Context.CONNECTIVITY_SERVICE, connectivity); 235 } catch (Throwable e) { 236 Log.e(TAG, "Failure starting Connectivity Service", e); 237 } 238 239 try { 240 Log.i(TAG, "Accessibility Manager"); 241 ServiceManager.addService(Context.ACCESSIBILITY_SERVICE, 242 new AccessibilityManagerService(context)); 243 } catch (Throwable e) { 244 Log.e(TAG, "Failure starting Accessibility Manager", e); 245 } 246 247 try { 248 Log.i(TAG, "Notification Manager"); 249 notification = new NotificationManagerService(context, statusBar, hardware); 250 ServiceManager.addService(Context.NOTIFICATION_SERVICE, notification); 251 } catch (Throwable e) { 252 Log.e(TAG, "Failure starting Notification Manager", e); 253 } 254 255 try { 256 // MountService must start after NotificationManagerService 257 Log.i(TAG, "Mount Service"); 258 ServiceManager.addService("mount", new MountService(context)); 259 } catch (Throwable e) { 260 Log.e(TAG, "Failure starting Mount Service", e); 261 } 262 263 try { 264 Log.i(TAG, "Device Storage Monitor"); 265 ServiceManager.addService(DeviceStorageMonitorService.SERVICE, 266 new DeviceStorageMonitorService(context)); 267 } catch (Throwable e) { 268 Log.e(TAG, "Failure starting DeviceStorageMonitor service", e); 269 } 270 271 try { 272 Log.i(TAG, "Location Manager"); 273 ServiceManager.addService(Context.LOCATION_SERVICE, new LocationManagerService(context)); 274 } catch (Throwable e) { 275 Log.e(TAG, "Failure starting Location Manager", e); 276 } 277 278 try { 279 Log.i(TAG, "Search Service"); 280 ServiceManager.addService( Context.SEARCH_SERVICE, new SearchManagerService(context) ); 281 } catch (Throwable e) { 282 Log.e(TAG, "Failure starting Search Service", e); 283 } 284 285 if (INCLUDE_DEMO) { 286 Log.i(TAG, "Installing demo data..."); 287 (new DemoThread(context)).start(); 288 } 289 290 try { 291 Log.i(TAG, "Checkin Service"); 292 Intent intent = new Intent().setComponent(new ComponentName( 293 "com.google.android.server.checkin", 294 "com.google.android.server.checkin.CheckinService")); 295 if (context.startService(intent) == null) { 296 Log.w(TAG, "Using fallback Checkin Service."); 297 ServiceManager.addService("checkin", new FallbackCheckinService(context)); 298 } 299 } catch (Throwable e) { 300 Log.e(TAG, "Failure starting Checkin Service", e); 301 } 302 303 try { 304 Log.i(TAG, "Wallpaper Service"); 305 wallpaper = new WallpaperManagerService(context); 306 ServiceManager.addService(Context.WALLPAPER_SERVICE, wallpaper); 307 } catch (Throwable e) { 308 Log.e(TAG, "Failure starting Wallpaper Service", e); 309 } 310 311 try { 312 Log.i(TAG, "Audio Service"); 313 ServiceManager.addService(Context.AUDIO_SERVICE, new AudioService(context)); 314 } catch (Throwable e) { 315 Log.e(TAG, "Failure starting Audio Service", e); 316 } 317 318 try { 319 Log.i(TAG, "Headset Observer"); 320 // Listen for wired headset changes 321 headset = new HeadsetObserver(context); 322 } catch (Throwable e) { 323 Log.e(TAG, "Failure starting HeadsetObserver", e); 324 } 325 326 try { 327 Log.i(TAG, "Dock Observer"); 328 // Listen for dock station changes 329 dock = new DockObserver(context); 330 } catch (Throwable e) { 331 Log.e(TAG, "Failure starting DockObserver", e); 332 } 333 334 try { 335 Log.i(TAG, "Backup Service"); 336 ServiceManager.addService(Context.BACKUP_SERVICE, new BackupManagerService(context)); 337 } catch (Throwable e) { 338 Log.e(TAG, "Failure starting Backup Service", e); 339 } 340 341 try { 342 Log.i(TAG, "AppWidget Service"); 343 appWidget = new AppWidgetService(context); 344 ServiceManager.addService(Context.APPWIDGET_SERVICE, appWidget); 345 } catch (Throwable e) { 346 Log.e(TAG, "Failure starting AppWidget Service", e); 347 } 348 349 try { 350 com.android.server.status.StatusBarPolicy.installIcons(context, statusBar); 351 } catch (Throwable e) { 352 Log.e(TAG, "Failure installing status bar icons", e); 353 } 354 } 355 356 // make sure the ADB_ENABLED setting value matches the secure property value 357 Settings.Secure.putInt(mContentResolver, Settings.Secure.ADB_ENABLED, 358 "1".equals(SystemProperties.get("persist.service.adb.enable")) ? 1 : 0); 359 360 // register observer to listen for settings changes 361 mContentResolver.registerContentObserver(Settings.Secure.getUriFor(Settings.Secure.ADB_ENABLED), 362 false, new AdbSettingsObserver()); 363 364 // It is now time to start up the app processes... 365 final boolean safeMode = wm.detectSafeMode(); 366 367 if (notification != null) { 368 notification.systemReady(); 369 } 370 371 if (statusBar != null) { 372 statusBar.systemReady(); 373 } 374 wm.systemReady(); 375 power.systemReady(); 376 try { 377 pm.systemReady(); 378 } catch (RemoteException e) { 379 } 380 381 // These are needed to propagate to the runnable below. 382 final BatteryService batteryF = battery; 383 final ConnectivityService connectivityF = connectivity; 384 final DockObserver dockF = dock; 385 final AppWidgetService appWidgetF = appWidget; 386 final WallpaperManagerService wallpaperF = wallpaper; 387 final InputMethodManagerService immF = imm; 388 389 // We now tell the activity manager it is okay to run third party 390 // code. It will call back into us once it has gotten to the state 391 // where third party code can really run (but before it has actually 392 // started launching the initial applications), for us to complete our 393 // initialization. 394 ((ActivityManagerService)ActivityManagerNative.getDefault()) 395 .systemReady(new Runnable() { 396 public void run() { 397 Log.i(TAG, "Making services ready"); 398 399 if (batteryF != null) batteryF.systemReady(); 400 if (connectivityF != null) connectivityF.systemReady(); 401 if (dockF != null) dockF.systemReady(); 402 Watchdog.getInstance().start(); 403 404 // It is now okay to let the various system services start their 405 // third party code... 406 407 if (appWidgetF != null) appWidgetF.systemReady(safeMode); 408 if (wallpaperF != null) wallpaperF.systemReady(); 409 if (immF != null) immF.systemReady(); 410 } 411 }); 412 413 Looper.loop(); 414 Log.d(TAG, "System ServerThread is exiting!"); 415 } 416} 417 418class DemoThread extends Thread 419{ 420 DemoThread(Context context) 421 { 422 mContext = context; 423 } 424 425 @Override 426 public void run() 427 { 428 try { 429 Cursor c = mContext.getContentResolver().query(People.CONTENT_URI, null, null, null, null); 430 boolean hasData = c != null && c.moveToFirst(); 431 if (c != null) { 432 c.deactivate(); 433 } 434 if (!hasData) { 435 DemoDataSet dataset = new DemoDataSet(); 436 dataset.add(mContext); 437 } 438 } catch (Throwable e) { 439 Log.e("SystemServer", "Failure installing demo data", e); 440 } 441 442 } 443 444 Context mContext; 445} 446 447public class SystemServer 448{ 449 private static final String TAG = "SystemServer"; 450 451 public static final int FACTORY_TEST_OFF = 0; 452 public static final int FACTORY_TEST_LOW_LEVEL = 1; 453 public static final int FACTORY_TEST_HIGH_LEVEL = 2; 454 455 /** 456 * This method is called from Zygote to initialize the system. This will cause the native 457 * services (SurfaceFlinger, AudioFlinger, etc..) to be started. After that it will call back 458 * up into init2() to start the Android services. 459 */ 460 native public static void init1(String[] args); 461 462 public static void main(String[] args) { 463 // The system server has to run all of the time, so it needs to be 464 // as efficient as possible with its memory usage. 465 VMRuntime.getRuntime().setTargetHeapUtilization(0.8f); 466 467 System.loadLibrary("android_servers"); 468 init1(args); 469 } 470 471 public static final void init2() { 472 Log.i(TAG, "Entered the Android system server!"); 473 Thread thr = new ServerThread(); 474 thr.setName("android.server.ServerThread"); 475 thr.start(); 476 } 477} 478