SystemServer.java revision f18a01c77e78209b74e34d05cfb352fa4a92db5f
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.bluetooth.BluetoothAdapter; 27import android.content.ComponentName; 28import android.content.ContentResolver; 29import android.content.ContentService; 30import android.content.Context; 31import android.content.Intent; 32import android.content.pm.IPackageManager; 33import android.database.ContentObserver; 34import android.database.Cursor; 35import android.media.AudioService; 36import android.os.*; 37import android.provider.Contacts.People; 38import android.provider.Settings; 39import android.server.BluetoothA2dpService; 40import android.server.BluetoothService; 41import android.server.search.SearchManagerService; 42import android.util.EventLog; 43import android.util.Log; 44import android.accounts.AccountManagerService; 45 46import java.io.File; 47import java.util.Timer; 48import java.util.TimerTask; 49 50class ServerThread extends Thread { 51 private static final String TAG = "SystemServer"; 52 private final static boolean INCLUDE_DEMO = false; 53 54 private static final int LOG_BOOT_PROGRESS_SYSTEM_RUN = 3010; 55 56 private ContentResolver mContentResolver; 57 58 private class AdbSettingsObserver extends ContentObserver { 59 public AdbSettingsObserver() { 60 super(null); 61 } 62 @Override 63 public void onChange(boolean selfChange) { 64 boolean enableAdb = (Settings.Secure.getInt(mContentResolver, 65 Settings.Secure.ADB_ENABLED, 0) > 0); 66 // setting this secure property will start or stop adbd 67 SystemProperties.set("persist.service.adb.enable", enableAdb ? "1" : "0"); 68 } 69 } 70 71 @Override 72 public void run() { 73 EventLog.writeEvent(LOG_BOOT_PROGRESS_SYSTEM_RUN, 74 SystemClock.uptimeMillis()); 75 76 ActivityManagerService.prepareTraceFile(false); // create dir 77 78 Looper.prepare(); 79 80 android.os.Process.setThreadPriority( 81 android.os.Process.THREAD_PRIORITY_FOREGROUND); 82 83 String factoryTestStr = SystemProperties.get("ro.factorytest"); 84 int factoryTest = "".equals(factoryTestStr) ? SystemServer.FACTORY_TEST_OFF 85 : Integer.parseInt(factoryTestStr); 86 87 HardwareService hardware = null; 88 PowerManagerService power = null; 89 BatteryService battery = null; 90 ConnectivityService connectivity = null; 91 IPackageManager pm = null; 92 Context context = null; 93 WindowManagerService wm = null; 94 BluetoothService bluetooth = null; 95 BluetoothA2dpService bluetoothA2dp = null; 96 HeadsetObserver headset = null; 97 DockObserver dock = null; 98 99 // Critical services... 100 try { 101 Log.i(TAG, "Entropy Service"); 102 ServiceManager.addService("entropy", new EntropyService()); 103 104 Log.i(TAG, "Power Manager"); 105 power = new PowerManagerService(); 106 ServiceManager.addService(Context.POWER_SERVICE, power); 107 108 Log.i(TAG, "Activity Manager"); 109 context = ActivityManagerService.main(factoryTest); 110 111 Log.i(TAG, "Telephony Registry"); 112 ServiceManager.addService("telephony.registry", new TelephonyRegistry(context)); 113 114 AttributeCache.init(context); 115 116 Log.i(TAG, "Package Manager"); 117 pm = PackageManagerService.main(context, 118 factoryTest != SystemServer.FACTORY_TEST_OFF); 119 120 ActivityManagerService.setSystemProcess(); 121 122 mContentResolver = context.getContentResolver(); 123 124 // The AccountManager must come before the ContentService 125 try { 126 Log.i(TAG, "Account Manager"); 127 ServiceManager.addService(Context.ACCOUNT_SERVICE, 128 new AccountManagerService(context)); 129 } catch (Throwable e) { 130 Log.e(TAG, "Failure starting Account Manager", e); 131 } 132 133 Log.i(TAG, "Content Manager"); 134 ContentService.main(context, 135 factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL); 136 137 Log.i(TAG, "System Content Providers"); 138 ActivityManagerService.installSystemProviders(); 139 140 Log.i(TAG, "Battery Service"); 141 battery = new BatteryService(context); 142 ServiceManager.addService("battery", battery); 143 144 Log.i(TAG, "Hardware Service"); 145 hardware = new HardwareService(context); 146 ServiceManager.addService("hardware", hardware); 147 148 // only initialize the power service after we have started the 149 // hardware service, content providers and the battery service. 150 power.init(context, hardware, ActivityManagerService.getDefault(), battery); 151 152 Log.i(TAG, "Alarm Manager"); 153 AlarmManagerService alarm = new AlarmManagerService(context); 154 ServiceManager.addService(Context.ALARM_SERVICE, alarm); 155 156 Log.i(TAG, "Init Watchdog"); 157 Watchdog.getInstance().init(context, battery, power, alarm, 158 ActivityManagerService.self()); 159 160 // Sensor Service is needed by Window Manager, so this goes first 161 Log.i(TAG, "Sensor Service"); 162 ServiceManager.addService(Context.SENSOR_SERVICE, new SensorService(context)); 163 164 Log.i(TAG, "Window Manager"); 165 wm = WindowManagerService.main(context, power, 166 factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL); 167 ServiceManager.addService(Context.WINDOW_SERVICE, wm); 168 169 ((ActivityManagerService)ServiceManager.getService("activity")) 170 .setWindowManager(wm); 171 172 // Skip Bluetooth if we have an emulator kernel 173 // TODO: Use a more reliable check to see if this product should 174 // support Bluetooth - see bug 988521 175 if (SystemProperties.get("ro.kernel.qemu").equals("1")) { 176 Log.i(TAG, "Registering null Bluetooth Service (emulator)"); 177 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, null); 178 } else if (factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL) { 179 Log.i(TAG, "Registering null Bluetooth Service (factory test)"); 180 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, null); 181 } else { 182 Log.i(TAG, "Bluetooth Service"); 183 bluetooth = new BluetoothService(context); 184 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, bluetooth); 185 bluetooth.initAfterRegistration(); 186 bluetoothA2dp = new BluetoothA2dpService(context, bluetooth); 187 ServiceManager.addService(BluetoothA2dpService.BLUETOOTH_A2DP_SERVICE, 188 bluetoothA2dp); 189 190 int bluetoothOn = Settings.Secure.getInt(mContentResolver, 191 Settings.Secure.BLUETOOTH_ON, 0); 192 if (bluetoothOn > 0) { 193 bluetooth.enable(); 194 } 195 } 196 197 } catch (RuntimeException e) { 198 Log.e("System", "Failure starting core service", e); 199 } 200 201 StatusBarService statusBar = null; 202 InputMethodManagerService imm = null; 203 AppWidgetService appWidget = null; 204 NotificationManagerService notification = null; 205 WallpaperManagerService wallpaper = null; 206 207 if (factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL) { 208 try { 209 Log.i(TAG, "Status Bar"); 210 statusBar = new StatusBarService(context); 211 ServiceManager.addService("statusbar", statusBar); 212 } catch (Throwable e) { 213 Log.e(TAG, "Failure starting StatusBarService", e); 214 } 215 216 try { 217 Log.i(TAG, "Clipboard Service"); 218 ServiceManager.addService("clipboard", new ClipboardService(context)); 219 } catch (Throwable e) { 220 Log.e(TAG, "Failure starting Clipboard Service", e); 221 } 222 223 try { 224 Log.i(TAG, "Input Method Service"); 225 imm = new InputMethodManagerService(context, statusBar); 226 ServiceManager.addService(Context.INPUT_METHOD_SERVICE, imm); 227 } catch (Throwable e) { 228 Log.e(TAG, "Failure starting Input Manager Service", e); 229 } 230 231 try { 232 Log.i(TAG, "NetStat Service"); 233 ServiceManager.addService("netstat", new NetStatService(context)); 234 } catch (Throwable e) { 235 Log.e(TAG, "Failure starting NetStat Service", e); 236 } 237 238 try { 239 Log.i(TAG, "Connectivity Service"); 240 connectivity = ConnectivityService.getInstance(context); 241 ServiceManager.addService(Context.CONNECTIVITY_SERVICE, connectivity); 242 } catch (Throwable e) { 243 Log.e(TAG, "Failure starting Connectivity Service", e); 244 } 245 246 try { 247 Log.i(TAG, "Accessibility Manager"); 248 ServiceManager.addService(Context.ACCESSIBILITY_SERVICE, 249 new AccessibilityManagerService(context)); 250 } catch (Throwable e) { 251 Log.e(TAG, "Failure starting Accessibility Manager", e); 252 } 253 254 try { 255 Log.i(TAG, "Notification Manager"); 256 notification = new NotificationManagerService(context, statusBar, hardware); 257 ServiceManager.addService(Context.NOTIFICATION_SERVICE, notification); 258 } catch (Throwable e) { 259 Log.e(TAG, "Failure starting Notification Manager", e); 260 } 261 262 try { 263 // MountService must start after NotificationManagerService 264 Log.i(TAG, "Mount Service"); 265 ServiceManager.addService("mount", new MountService(context)); 266 } catch (Throwable e) { 267 Log.e(TAG, "Failure starting Mount Service", e); 268 } 269 270 try { 271 Log.i(TAG, "Device Storage Monitor"); 272 ServiceManager.addService(DeviceStorageMonitorService.SERVICE, 273 new DeviceStorageMonitorService(context)); 274 } catch (Throwable e) { 275 Log.e(TAG, "Failure starting DeviceStorageMonitor service", e); 276 } 277 278 try { 279 Log.i(TAG, "Location Manager"); 280 ServiceManager.addService(Context.LOCATION_SERVICE, new LocationManagerService(context)); 281 } catch (Throwable e) { 282 Log.e(TAG, "Failure starting Location Manager", e); 283 } 284 285 try { 286 Log.i(TAG, "Search Service"); 287 ServiceManager.addService( Context.SEARCH_SERVICE, new SearchManagerService(context) ); 288 } catch (Throwable e) { 289 Log.e(TAG, "Failure starting Search Service", e); 290 } 291 292 if (INCLUDE_DEMO) { 293 Log.i(TAG, "Installing demo data..."); 294 (new DemoThread(context)).start(); 295 } 296 297 try { 298 Log.i(TAG, "DropBox Service"); 299 ServiceManager.addService(Context.DROPBOX_SERVICE, 300 new DropBoxManagerService(context, new File("/data/system/dropbox"))); 301 } catch (Throwable e) { 302 Log.e(TAG, "Failure starting DropBoxManagerService", e); 303 } 304 305 try { 306 Log.i(TAG, "Checkin Service"); 307 Intent intent = new Intent().setComponent(new ComponentName( 308 "com.google.android.server.checkin", 309 "com.google.android.server.checkin.CheckinService")); 310 if (context.startService(intent) == null) { 311 Log.w(TAG, "Using fallback Checkin Service."); 312 ServiceManager.addService("checkin", new FallbackCheckinService(context)); 313 } 314 } catch (Throwable e) { 315 Log.e(TAG, "Failure starting Checkin Service", e); 316 } 317 318 try { 319 Log.i(TAG, "Wallpaper Service"); 320 wallpaper = new WallpaperManagerService(context); 321 ServiceManager.addService(Context.WALLPAPER_SERVICE, wallpaper); 322 } catch (Throwable e) { 323 Log.e(TAG, "Failure starting Wallpaper Service", e); 324 } 325 326 try { 327 Log.i(TAG, "Audio Service"); 328 ServiceManager.addService(Context.AUDIO_SERVICE, new AudioService(context)); 329 } catch (Throwable e) { 330 Log.e(TAG, "Failure starting Audio Service", e); 331 } 332 333 try { 334 Log.i(TAG, "Headset Observer"); 335 // Listen for wired headset changes 336 headset = new HeadsetObserver(context); 337 } catch (Throwable e) { 338 Log.e(TAG, "Failure starting HeadsetObserver", e); 339 } 340 341 try { 342 Log.i(TAG, "Dock Observer"); 343 // Listen for dock station changes 344 dock = new DockObserver(context, power); 345 } catch (Throwable e) { 346 Log.e(TAG, "Failure starting DockObserver", e); 347 } 348 349 try { 350 Log.i(TAG, "Backup Service"); 351 ServiceManager.addService(Context.BACKUP_SERVICE, new BackupManagerService(context)); 352 } catch (Throwable e) { 353 Log.e(TAG, "Failure starting Backup Service", e); 354 } 355 356 try { 357 Log.i(TAG, "AppWidget Service"); 358 appWidget = new AppWidgetService(context); 359 ServiceManager.addService(Context.APPWIDGET_SERVICE, appWidget); 360 } catch (Throwable e) { 361 Log.e(TAG, "Failure starting AppWidget Service", e); 362 } 363 364 try { 365 com.android.server.status.StatusBarPolicy.installIcons(context, statusBar); 366 } catch (Throwable e) { 367 Log.e(TAG, "Failure installing status bar icons", e); 368 } 369 } 370 371 // make sure the ADB_ENABLED setting value matches the secure property value 372 Settings.Secure.putInt(mContentResolver, Settings.Secure.ADB_ENABLED, 373 "1".equals(SystemProperties.get("persist.service.adb.enable")) ? 1 : 0); 374 375 // register observer to listen for settings changes 376 mContentResolver.registerContentObserver(Settings.Secure.getUriFor(Settings.Secure.ADB_ENABLED), 377 false, new AdbSettingsObserver()); 378 379 // Before things start rolling, be sure we have decided whether 380 // we are in safe mode. 381 final boolean safeMode = wm.detectSafeMode(); 382 if (safeMode) { 383 try { 384 ActivityManagerNative.getDefault().enterSafeMode(); 385 } catch (RemoteException e) { 386 } 387 } 388 389 // It is now time to start up the app processes... 390 391 if (notification != null) { 392 notification.systemReady(); 393 } 394 395 if (statusBar != null) { 396 statusBar.systemReady(); 397 } 398 wm.systemReady(); 399 power.systemReady(); 400 try { 401 pm.systemReady(); 402 } catch (RemoteException e) { 403 } 404 405 // These are needed to propagate to the runnable below. 406 final BatteryService batteryF = battery; 407 final ConnectivityService connectivityF = connectivity; 408 final DockObserver dockF = dock; 409 final AppWidgetService appWidgetF = appWidget; 410 final WallpaperManagerService wallpaperF = wallpaper; 411 final InputMethodManagerService immF = imm; 412 413 // We now tell the activity manager it is okay to run third party 414 // code. It will call back into us once it has gotten to the state 415 // where third party code can really run (but before it has actually 416 // started launching the initial applications), for us to complete our 417 // initialization. 418 ((ActivityManagerService)ActivityManagerNative.getDefault()) 419 .systemReady(new Runnable() { 420 public void run() { 421 Log.i(TAG, "Making services ready"); 422 423 if (batteryF != null) batteryF.systemReady(); 424 if (connectivityF != null) connectivityF.systemReady(); 425 if (dockF != null) dockF.systemReady(); 426 Watchdog.getInstance().start(); 427 428 // It is now okay to let the various system services start their 429 // third party code... 430 431 if (appWidgetF != null) appWidgetF.systemReady(safeMode); 432 if (wallpaperF != null) wallpaperF.systemReady(); 433 if (immF != null) immF.systemReady(); 434 } 435 }); 436 437 Looper.loop(); 438 Log.d(TAG, "System ServerThread is exiting!"); 439 } 440} 441 442class DemoThread extends Thread 443{ 444 DemoThread(Context context) 445 { 446 mContext = context; 447 } 448 449 @Override 450 public void run() 451 { 452 try { 453 Cursor c = mContext.getContentResolver().query(People.CONTENT_URI, null, null, null, null); 454 boolean hasData = c != null && c.moveToFirst(); 455 if (c != null) { 456 c.deactivate(); 457 } 458 if (!hasData) { 459 DemoDataSet dataset = new DemoDataSet(); 460 dataset.add(mContext); 461 } 462 } catch (Throwable e) { 463 Log.e("SystemServer", "Failure installing demo data", e); 464 } 465 466 } 467 468 Context mContext; 469} 470 471public class SystemServer 472{ 473 private static final String TAG = "SystemServer"; 474 475 public static final int FACTORY_TEST_OFF = 0; 476 public static final int FACTORY_TEST_LOW_LEVEL = 1; 477 public static final int FACTORY_TEST_HIGH_LEVEL = 2; 478 479 static Timer timer; 480 static final long SNAPSHOT_INTERVAL = 60 * 60 * 1000; // 1hr 481 482 /** 483 * This method is called from Zygote to initialize the system. This will cause the native 484 * services (SurfaceFlinger, AudioFlinger, etc..) to be started. After that it will call back 485 * up into init2() to start the Android services. 486 */ 487 native public static void init1(String[] args); 488 489 public static void main(String[] args) { 490 if (SamplingProfilerIntegration.isEnabled()) { 491 SamplingProfilerIntegration.start(); 492 timer = new Timer(); 493 timer.schedule(new TimerTask() { 494 @Override 495 public void run() { 496 SamplingProfilerIntegration.writeSnapshot("system_server"); 497 } 498 }, SNAPSHOT_INTERVAL, SNAPSHOT_INTERVAL); 499 } 500 501 // The system server has to run all of the time, so it needs to be 502 // as efficient as possible with its memory usage. 503 VMRuntime.getRuntime().setTargetHeapUtilization(0.8f); 504 505 System.loadLibrary("android_servers"); 506 init1(args); 507 } 508 509 public static final void init2() { 510 Log.i(TAG, "Entered the Android system server!"); 511 Thread thr = new ServerThread(); 512 thr.setName("android.server.ServerThread"); 513 thr.start(); 514 } 515} 516