SystemServer.java revision e540833fdff4d58e37c9ba859388e24e2945ed45
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.SamplingProfilerIntegration; 22 23import dalvik.system.VMRuntime; 24 25import android.app.ActivityManagerNative; 26import android.content.ComponentName; 27import android.content.ContentResolver; 28import android.content.ContentService; 29import android.content.Context; 30import android.content.Intent; 31import android.content.pm.IPackageManager; 32import android.database.ContentObserver; 33import android.database.Cursor; 34import android.media.AudioService; 35import android.os.*; 36import android.provider.Contacts.People; 37import android.provider.Settings; 38import android.server.BluetoothA2dpService; 39import android.server.BluetoothService; 40import android.server.search.SearchManagerService; 41import android.util.EventLog; 42import android.util.Log; 43import android.accounts.AccountManagerService; 44 45import java.util.Timer; 46import java.util.TimerTask; 47 48class ServerThread extends Thread { 49 private static final String TAG = "SystemServer"; 50 private final static boolean INCLUDE_DEMO = false; 51 52 private static final int LOG_BOOT_PROGRESS_SYSTEM_RUN = 3010; 53 54 private ContentResolver mContentResolver; 55 56 private class AdbSettingsObserver extends ContentObserver { 57 public AdbSettingsObserver() { 58 super(null); 59 } 60 @Override 61 public void onChange(boolean selfChange) { 62 boolean enableAdb = (Settings.Secure.getInt(mContentResolver, 63 Settings.Secure.ADB_ENABLED, 0) > 0); 64 // setting this secure property will start or stop adbd 65 SystemProperties.set("persist.service.adb.enable", enableAdb ? "1" : "0"); 66 } 67 } 68 69 @Override 70 public void run() { 71 EventLog.writeEvent(LOG_BOOT_PROGRESS_SYSTEM_RUN, 72 SystemClock.uptimeMillis()); 73 74 ActivityManagerService.prepareTraceFile(false); // create dir 75 76 Looper.prepare(); 77 78 android.os.Process.setThreadPriority( 79 android.os.Process.THREAD_PRIORITY_FOREGROUND); 80 81 String factoryTestStr = SystemProperties.get("ro.factorytest"); 82 int factoryTest = "".equals(factoryTestStr) ? SystemServer.FACTORY_TEST_OFF 83 : Integer.parseInt(factoryTestStr); 84 85 HardwareService hardware = null; 86 PowerManagerService power = null; 87 BatteryService battery = null; 88 ConnectivityService connectivity = null; 89 IPackageManager pm = null; 90 Context context = null; 91 WindowManagerService wm = null; 92 BluetoothService bluetooth = null; 93 BluetoothA2dpService bluetoothA2dp = null; 94 HeadsetObserver headset = null; 95 DockObserver dock = null; 96 97 // Critical services... 98 try { 99 Log.i(TAG, "Entropy Service"); 100 ServiceManager.addService("entropy", new EntropyService()); 101 102 Log.i(TAG, "Power Manager"); 103 power = new PowerManagerService(); 104 ServiceManager.addService(Context.POWER_SERVICE, power); 105 106 Log.i(TAG, "Activity Manager"); 107 context = ActivityManagerService.main(factoryTest); 108 109 Log.i(TAG, "Telephony Registry"); 110 ServiceManager.addService("telephony.registry", new TelephonyRegistry(context)); 111 112 AttributeCache.init(context); 113 114 Log.i(TAG, "Package Manager"); 115 pm = PackageManagerService.main(context, 116 factoryTest != SystemServer.FACTORY_TEST_OFF); 117 118 ActivityManagerService.setSystemProcess(); 119 120 mContentResolver = context.getContentResolver(); 121 122 try { 123 Log.i(TAG, "Account Manager"); 124 ServiceManager.addService(Context.ACCOUNT_SERVICE, 125 new AccountManagerService(context)); 126 } catch (Throwable e) { 127 Log.e(TAG, "Failure starting Account Manager", e); 128 } 129 130 Log.i(TAG, "Content Manager"); 131 ContentService.main(context, 132 factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL); 133 134 Log.i(TAG, "System Content Providers"); 135 ActivityManagerService.installSystemProviders(); 136 137 Log.i(TAG, "Battery Service"); 138 battery = new BatteryService(context); 139 ServiceManager.addService("battery", battery); 140 141 Log.i(TAG, "Hardware Service"); 142 hardware = new HardwareService(context); 143 ServiceManager.addService("hardware", hardware); 144 145 // only initialize the power service after we have started the 146 // hardware service, content providers and the battery service. 147 power.init(context, hardware, ActivityManagerService.getDefault(), battery); 148 149 Log.i(TAG, "Alarm Manager"); 150 AlarmManagerService alarm = new AlarmManagerService(context); 151 ServiceManager.addService(Context.ALARM_SERVICE, alarm); 152 153 Log.i(TAG, "Init Watchdog"); 154 Watchdog.getInstance().init(context, battery, power, alarm, 155 ActivityManagerService.self()); 156 157 // Sensor Service is needed by Window Manager, so this goes first 158 Log.i(TAG, "Sensor Service"); 159 ServiceManager.addService(Context.SENSOR_SERVICE, new SensorService(context)); 160 161 Log.i(TAG, "Window Manager"); 162 wm = WindowManagerService.main(context, power, 163 factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL); 164 ServiceManager.addService(Context.WINDOW_SERVICE, wm); 165 166 ((ActivityManagerService)ServiceManager.getService("activity")) 167 .setWindowManager(wm); 168 169 // Skip Bluetooth if we have an emulator kernel 170 // TODO: Use a more reliable check to see if this product should 171 // support Bluetooth - see bug 988521 172 if (SystemProperties.get("ro.kernel.qemu").equals("1")) { 173 Log.i(TAG, "Registering null Bluetooth Service (emulator)"); 174 ServiceManager.addService(Context.BLUETOOTH_SERVICE, null); 175 } else if (factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL) { 176 Log.i(TAG, "Registering null Bluetooth Service (factory test)"); 177 ServiceManager.addService(Context.BLUETOOTH_SERVICE, null); 178 } else { 179 Log.i(TAG, "Bluetooth Service"); 180 bluetooth = new BluetoothService(context); 181 ServiceManager.addService(Context.BLUETOOTH_SERVICE, bluetooth); 182 bluetooth.initAfterRegistration(); 183 bluetoothA2dp = new BluetoothA2dpService(context, bluetooth); 184 ServiceManager.addService(BluetoothA2dpService.BLUETOOTH_A2DP_SERVICE, 185 bluetoothA2dp); 186 187 int bluetoothOn = Settings.Secure.getInt(mContentResolver, 188 Settings.Secure.BLUETOOTH_ON, 0); 189 if (bluetoothOn > 0) { 190 bluetooth.enable(); 191 } 192 } 193 194 } catch (RuntimeException e) { 195 Log.e("System", "Failure starting core service", e); 196 } 197 198 StatusBarService statusBar = null; 199 InputMethodManagerService imm = null; 200 AppWidgetService appWidget = null; 201 NotificationManagerService notification = null; 202 WallpaperManagerService wallpaper = null; 203 204 if (factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL) { 205 try { 206 Log.i(TAG, "Status Bar"); 207 statusBar = new StatusBarService(context); 208 ServiceManager.addService("statusbar", statusBar); 209 } catch (Throwable e) { 210 Log.e(TAG, "Failure starting StatusBarService", e); 211 } 212 213 try { 214 Log.i(TAG, "Clipboard Service"); 215 ServiceManager.addService("clipboard", new ClipboardService(context)); 216 } catch (Throwable e) { 217 Log.e(TAG, "Failure starting Clipboard Service", e); 218 } 219 220 try { 221 Log.i(TAG, "Input Method Service"); 222 imm = new InputMethodManagerService(context, statusBar); 223 ServiceManager.addService(Context.INPUT_METHOD_SERVICE, imm); 224 } catch (Throwable e) { 225 Log.e(TAG, "Failure starting Input Manager Service", e); 226 } 227 228 try { 229 Log.i(TAG, "NetStat Service"); 230 ServiceManager.addService("netstat", new NetStatService(context)); 231 } catch (Throwable e) { 232 Log.e(TAG, "Failure starting NetStat Service", e); 233 } 234 235 try { 236 Log.i(TAG, "Connectivity Service"); 237 connectivity = ConnectivityService.getInstance(context); 238 ServiceManager.addService(Context.CONNECTIVITY_SERVICE, connectivity); 239 } catch (Throwable e) { 240 Log.e(TAG, "Failure starting Connectivity Service", e); 241 } 242 243 try { 244 Log.i(TAG, "Accessibility Manager"); 245 ServiceManager.addService(Context.ACCESSIBILITY_SERVICE, 246 new AccessibilityManagerService(context)); 247 } catch (Throwable e) { 248 Log.e(TAG, "Failure starting Accessibility Manager", e); 249 } 250 251 try { 252 Log.i(TAG, "Notification Manager"); 253 notification = new NotificationManagerService(context, statusBar, hardware); 254 ServiceManager.addService(Context.NOTIFICATION_SERVICE, notification); 255 } catch (Throwable e) { 256 Log.e(TAG, "Failure starting Notification Manager", e); 257 } 258 259 try { 260 // MountService must start after NotificationManagerService 261 Log.i(TAG, "Mount Service"); 262 ServiceManager.addService("mount", new MountService(context)); 263 } catch (Throwable e) { 264 Log.e(TAG, "Failure starting Mount Service", e); 265 } 266 267 try { 268 Log.i(TAG, "Device Storage Monitor"); 269 ServiceManager.addService(DeviceStorageMonitorService.SERVICE, 270 new DeviceStorageMonitorService(context)); 271 } catch (Throwable e) { 272 Log.e(TAG, "Failure starting DeviceStorageMonitor service", e); 273 } 274 275 try { 276 Log.i(TAG, "Location Manager"); 277 ServiceManager.addService(Context.LOCATION_SERVICE, new LocationManagerService(context)); 278 } catch (Throwable e) { 279 Log.e(TAG, "Failure starting Location Manager", e); 280 } 281 282 try { 283 Log.i(TAG, "Search Service"); 284 ServiceManager.addService( Context.SEARCH_SERVICE, new SearchManagerService(context) ); 285 } catch (Throwable e) { 286 Log.e(TAG, "Failure starting Search Service", e); 287 } 288 289 if (INCLUDE_DEMO) { 290 Log.i(TAG, "Installing demo data..."); 291 (new DemoThread(context)).start(); 292 } 293 294 try { 295 Log.i(TAG, "Checkin Service"); 296 Intent intent = new Intent().setComponent(new ComponentName( 297 "com.google.android.server.checkin", 298 "com.google.android.server.checkin.CheckinService")); 299 if (context.startService(intent) == null) { 300 Log.w(TAG, "Using fallback Checkin Service."); 301 ServiceManager.addService("checkin", new FallbackCheckinService(context)); 302 } 303 } catch (Throwable e) { 304 Log.e(TAG, "Failure starting Checkin Service", e); 305 } 306 307 try { 308 Log.i(TAG, "Wallpaper Service"); 309 wallpaper = new WallpaperManagerService(context); 310 ServiceManager.addService(Context.WALLPAPER_SERVICE, wallpaper); 311 } catch (Throwable e) { 312 Log.e(TAG, "Failure starting Wallpaper Service", e); 313 } 314 315 try { 316 Log.i(TAG, "Audio Service"); 317 ServiceManager.addService(Context.AUDIO_SERVICE, new AudioService(context)); 318 } catch (Throwable e) { 319 Log.e(TAG, "Failure starting Audio Service", e); 320 } 321 322 try { 323 Log.i(TAG, "Headset Observer"); 324 // Listen for wired headset changes 325 headset = new HeadsetObserver(context); 326 } catch (Throwable e) { 327 Log.e(TAG, "Failure starting HeadsetObserver", e); 328 } 329 330 try { 331 Log.i(TAG, "Dock Observer"); 332 // Listen for dock station changes 333 dock = new DockObserver(context); 334 } catch (Throwable e) { 335 Log.e(TAG, "Failure starting DockObserver", e); 336 } 337 338 try { 339 Log.i(TAG, "Backup Service"); 340 ServiceManager.addService(Context.BACKUP_SERVICE, new BackupManagerService(context)); 341 } catch (Throwable e) { 342 Log.e(TAG, "Failure starting Backup Service", e); 343 } 344 345 try { 346 Log.i(TAG, "AppWidget Service"); 347 appWidget = new AppWidgetService(context); 348 ServiceManager.addService(Context.APPWIDGET_SERVICE, appWidget); 349 } catch (Throwable e) { 350 Log.e(TAG, "Failure starting AppWidget Service", e); 351 } 352 353 try { 354 com.android.server.status.StatusBarPolicy.installIcons(context, statusBar); 355 } catch (Throwable e) { 356 Log.e(TAG, "Failure installing status bar icons", e); 357 } 358 } 359 360 // make sure the ADB_ENABLED setting value matches the secure property value 361 Settings.Secure.putInt(mContentResolver, Settings.Secure.ADB_ENABLED, 362 "1".equals(SystemProperties.get("persist.service.adb.enable")) ? 1 : 0); 363 364 // register observer to listen for settings changes 365 mContentResolver.registerContentObserver(Settings.Secure.getUriFor(Settings.Secure.ADB_ENABLED), 366 false, new AdbSettingsObserver()); 367 368 // It is now time to start up the app processes... 369 final boolean safeMode = wm.detectSafeMode(); 370 371 if (notification != null) { 372 notification.systemReady(); 373 } 374 375 if (statusBar != null) { 376 statusBar.systemReady(); 377 } 378 wm.systemReady(); 379 power.systemReady(); 380 try { 381 pm.systemReady(); 382 } catch (RemoteException e) { 383 } 384 385 // These are needed to propagate to the runnable below. 386 final BatteryService batteryF = battery; 387 final ConnectivityService connectivityF = connectivity; 388 final DockObserver dockF = dock; 389 final AppWidgetService appWidgetF = appWidget; 390 final WallpaperManagerService wallpaperF = wallpaper; 391 final InputMethodManagerService immF = imm; 392 393 // We now tell the activity manager it is okay to run third party 394 // code. It will call back into us once it has gotten to the state 395 // where third party code can really run (but before it has actually 396 // started launching the initial applications), for us to complete our 397 // initialization. 398 ((ActivityManagerService)ActivityManagerNative.getDefault()) 399 .systemReady(new Runnable() { 400 public void run() { 401 Log.i(TAG, "Making services ready"); 402 403 if (batteryF != null) batteryF.systemReady(); 404 if (connectivityF != null) connectivityF.systemReady(); 405 if (dockF != null) dockF.systemReady(); 406 Watchdog.getInstance().start(); 407 408 // It is now okay to let the various system services start their 409 // third party code... 410 411 if (appWidgetF != null) appWidgetF.systemReady(safeMode); 412 if (wallpaperF != null) wallpaperF.systemReady(); 413 if (immF != null) immF.systemReady(); 414 } 415 }); 416 417 Looper.loop(); 418 Log.d(TAG, "System ServerThread is exiting!"); 419 } 420} 421 422class DemoThread extends Thread 423{ 424 DemoThread(Context context) 425 { 426 mContext = context; 427 } 428 429 @Override 430 public void run() 431 { 432 try { 433 Cursor c = mContext.getContentResolver().query(People.CONTENT_URI, null, null, null, null); 434 boolean hasData = c != null && c.moveToFirst(); 435 if (c != null) { 436 c.deactivate(); 437 } 438 if (!hasData) { 439 DemoDataSet dataset = new DemoDataSet(); 440 dataset.add(mContext); 441 } 442 } catch (Throwable e) { 443 Log.e("SystemServer", "Failure installing demo data", e); 444 } 445 446 } 447 448 Context mContext; 449} 450 451public class SystemServer 452{ 453 private static final String TAG = "SystemServer"; 454 455 public static final int FACTORY_TEST_OFF = 0; 456 public static final int FACTORY_TEST_LOW_LEVEL = 1; 457 public static final int FACTORY_TEST_HIGH_LEVEL = 2; 458 459 static Timer timer; 460 static final long SNAPSHOT_INTERVAL = 60 * 60 * 1000; // 1hr 461 462 /** 463 * This method is called from Zygote to initialize the system. This will cause the native 464 * services (SurfaceFlinger, AudioFlinger, etc..) to be started. After that it will call back 465 * up into init2() to start the Android services. 466 */ 467 native public static void init1(String[] args); 468 469 public static void main(String[] args) { 470 if (SamplingProfilerIntegration.isEnabled()) { 471 SamplingProfilerIntegration.start(); 472 timer = new Timer(); 473 timer.schedule(new TimerTask() { 474 @Override 475 public void run() { 476 SamplingProfilerIntegration.writeSnapshot("system_server"); 477 } 478 }, SNAPSHOT_INTERVAL, SNAPSHOT_INTERVAL); 479 } 480 481 // The system server has to run all of the time, so it needs to be 482 // as efficient as possible with its memory usage. 483 VMRuntime.getRuntime().setTargetHeapUtilization(0.8f); 484 485 System.loadLibrary("android_servers"); 486 init1(args); 487 } 488 489 public static final void init2() { 490 Log.i(TAG, "Entered the Android system server!"); 491 Thread thr = new ServerThread(); 492 thr.setName("android.server.ServerThread"); 493 thr.start(); 494 } 495} 496