SystemServer.java revision 6c0afff7f027f14fba97bc937d2a13889927be9a
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; 25import dalvik.system.Zygote; 26 27import android.app.ActivityManagerNative; 28import android.bluetooth.BluetoothAdapter; 29import android.content.ComponentName; 30import android.content.ContentResolver; 31import android.content.ContentService; 32import android.content.Context; 33import android.content.Intent; 34import android.content.pm.IPackageManager; 35import android.database.ContentObserver; 36import android.database.Cursor; 37import android.media.AudioService; 38import android.os.*; 39import android.provider.Contacts.People; 40import android.provider.Settings; 41import android.server.BluetoothA2dpService; 42import android.server.BluetoothService; 43import android.server.search.SearchManagerService; 44import android.util.EventLog; 45import android.util.Log; 46import android.accounts.AccountManagerService; 47 48import java.io.File; 49import java.util.Timer; 50import java.util.TimerTask; 51 52class ServerThread extends Thread { 53 private static final String TAG = "SystemServer"; 54 private final static boolean INCLUDE_DEMO = false; 55 56 private static final int LOG_BOOT_PROGRESS_SYSTEM_RUN = 3010; 57 58 private ContentResolver mContentResolver; 59 60 private class AdbSettingsObserver extends ContentObserver { 61 public AdbSettingsObserver() { 62 super(null); 63 } 64 @Override 65 public void onChange(boolean selfChange) { 66 boolean enableAdb = (Settings.Secure.getInt(mContentResolver, 67 Settings.Secure.ADB_ENABLED, 0) > 0); 68 // setting this secure property will start or stop adbd 69 SystemProperties.set("persist.service.adb.enable", enableAdb ? "1" : "0"); 70 } 71 } 72 73 @Override 74 public void run() { 75 EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_SYSTEM_RUN, 76 SystemClock.uptimeMillis()); 77 78 Looper.prepare(); 79 80 android.os.Process.setThreadPriority( 81 android.os.Process.THREAD_PRIORITY_FOREGROUND); 82 83 BinderInternal.disableBackgroundScheduling(true); 84 85 String factoryTestStr = SystemProperties.get("ro.factorytest"); 86 int factoryTest = "".equals(factoryTestStr) ? SystemServer.FACTORY_TEST_OFF 87 : Integer.parseInt(factoryTestStr); 88 89 LightsService lights = null; 90 PowerManagerService power = null; 91 BatteryService battery = null; 92 ConnectivityService connectivity = null; 93 IPackageManager pm = null; 94 Context context = null; 95 WindowManagerService wm = null; 96 BluetoothService bluetooth = null; 97 BluetoothA2dpService bluetoothA2dp = null; 98 HeadsetObserver headset = null; 99 DockObserver dock = null; 100 101 // Critical services... 102 try { 103 Log.i(TAG, "Entropy Service"); 104 ServiceManager.addService("entropy", new EntropyService()); 105 106 Log.i(TAG, "Power Manager"); 107 power = new PowerManagerService(); 108 ServiceManager.addService(Context.POWER_SERVICE, power); 109 110 Log.i(TAG, "Activity Manager"); 111 context = ActivityManagerService.main(factoryTest); 112 113 Log.i(TAG, "Telephony Registry"); 114 ServiceManager.addService("telephony.registry", new TelephonyRegistry(context)); 115 116 AttributeCache.init(context); 117 118 Log.i(TAG, "Package Manager"); 119 pm = PackageManagerService.main(context, 120 factoryTest != SystemServer.FACTORY_TEST_OFF); 121 122 ActivityManagerService.setSystemProcess(); 123 124 mContentResolver = context.getContentResolver(); 125 126 // The AccountManager must come before the ContentService 127 try { 128 Log.i(TAG, "Account Manager"); 129 ServiceManager.addService(Context.ACCOUNT_SERVICE, 130 new AccountManagerService(context)); 131 } catch (Throwable e) { 132 Log.e(TAG, "Failure starting Account Manager", e); 133 } 134 135 Log.i(TAG, "Content Manager"); 136 ContentService.main(context, 137 factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL); 138 139 Log.i(TAG, "System Content Providers"); 140 ActivityManagerService.installSystemProviders(); 141 142 Log.i(TAG, "Battery Service"); 143 battery = new BatteryService(context); 144 ServiceManager.addService("battery", battery); 145 146 Log.i(TAG, "Lights Service"); 147 lights = new LightsService(context); 148 149 Log.i(TAG, "Vibrator Service"); 150 ServiceManager.addService("vibrator", new VibratorService(context)); 151 152 // only initialize the power service after we have started the 153 // lights service, content providers and the battery service. 154 power.init(context, lights, ActivityManagerService.getDefault(), battery); 155 156 Log.i(TAG, "Alarm Manager"); 157 AlarmManagerService alarm = new AlarmManagerService(context); 158 ServiceManager.addService(Context.ALARM_SERVICE, alarm); 159 160 Log.i(TAG, "Init Watchdog"); 161 Watchdog.getInstance().init(context, battery, power, alarm, 162 ActivityManagerService.self()); 163 164 // Sensor Service is needed by Window Manager, so this goes first 165 Log.i(TAG, "Sensor Service"); 166 ServiceManager.addService(Context.SENSOR_SERVICE, new SensorService(context)); 167 168 Log.i(TAG, "Window Manager"); 169 wm = WindowManagerService.main(context, power, 170 factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL); 171 ServiceManager.addService(Context.WINDOW_SERVICE, wm); 172 173 ((ActivityManagerService)ServiceManager.getService("activity")) 174 .setWindowManager(wm); 175 176 // Skip Bluetooth if we have an emulator kernel 177 // TODO: Use a more reliable check to see if this product should 178 // support Bluetooth - see bug 988521 179 if (SystemProperties.get("ro.kernel.qemu").equals("1")) { 180 Log.i(TAG, "Registering null Bluetooth Service (emulator)"); 181 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, null); 182 } else if (factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL) { 183 Log.i(TAG, "Registering null Bluetooth Service (factory test)"); 184 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, null); 185 } else { 186 Log.i(TAG, "Bluetooth Service"); 187 bluetooth = new BluetoothService(context); 188 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, bluetooth); 189 bluetooth.initAfterRegistration(); 190 bluetoothA2dp = new BluetoothA2dpService(context, bluetooth); 191 ServiceManager.addService(BluetoothA2dpService.BLUETOOTH_A2DP_SERVICE, 192 bluetoothA2dp); 193 194 int bluetoothOn = Settings.Secure.getInt(mContentResolver, 195 Settings.Secure.BLUETOOTH_ON, 0); 196 if (bluetoothOn > 0) { 197 bluetooth.enable(); 198 } 199 } 200 201 } catch (RuntimeException e) { 202 Log.e("System", "Failure starting core service", e); 203 } 204 205 DevicePolicyManagerService devicePolicy = null; 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, "Device Policy"); 215 devicePolicy = new DevicePolicyManagerService(context); 216 ServiceManager.addService(Context.DEVICE_POLICY_SERVICE, devicePolicy); 217 } catch (Throwable e) { 218 Log.e(TAG, "Failure starting DevicePolicyService", e); 219 } 220 221 try { 222 Log.i(TAG, "Status Bar"); 223 statusBar = new StatusBarService(context); 224 ServiceManager.addService(Context.STATUS_BAR_SERVICE, statusBar); 225 } catch (Throwable e) { 226 Log.e(TAG, "Failure starting StatusBarService", e); 227 } 228 229 try { 230 Log.i(TAG, "Clipboard Service"); 231 ServiceManager.addService(Context.CLIPBOARD_SERVICE, 232 new ClipboardService(context)); 233 } catch (Throwable e) { 234 Log.e(TAG, "Failure starting Clipboard Service", e); 235 } 236 237 try { 238 Log.i(TAG, "Input Method Service"); 239 imm = new InputMethodManagerService(context, statusBar); 240 ServiceManager.addService(Context.INPUT_METHOD_SERVICE, imm); 241 } catch (Throwable e) { 242 Log.e(TAG, "Failure starting Input Manager Service", e); 243 } 244 245 try { 246 Log.i(TAG, "NetStat Service"); 247 ServiceManager.addService("netstat", new NetStatService(context)); 248 } catch (Throwable e) { 249 Log.e(TAG, "Failure starting NetStat Service", e); 250 } 251 252 try { 253 Log.i(TAG, "NetworkManagement Service"); 254 ServiceManager.addService( 255 Context.NETWORKMANAGEMENT_SERVICE, new NetworkManagementService(context)); 256 } catch (Throwable e) { 257 Log.e(TAG, "Failure starting NetworkManagement Service", e); 258 } 259 260 try { 261 Log.i(TAG, "Connectivity Service"); 262 connectivity = ConnectivityService.getInstance(context); 263 ServiceManager.addService(Context.CONNECTIVITY_SERVICE, connectivity); 264 } catch (Throwable e) { 265 Log.e(TAG, "Failure starting Connectivity Service", e); 266 } 267 268 try { 269 Log.i(TAG, "Accessibility Manager"); 270 ServiceManager.addService(Context.ACCESSIBILITY_SERVICE, 271 new AccessibilityManagerService(context)); 272 } catch (Throwable e) { 273 Log.e(TAG, "Failure starting Accessibility Manager", e); 274 } 275 276 try { 277 /* 278 * NotificationManagerService is dependant on MountService, 279 * (for media / usb notifications) so we must start MountService first. 280 */ 281 Log.i(TAG, "Mount Service"); 282 ServiceManager.addService("mount", new MountService(context)); 283 } catch (Throwable e) { 284 Log.e(TAG, "Failure starting Mount Service", e); 285 } 286 287 try { 288 Log.i(TAG, "Notification Manager"); 289 notification = new NotificationManagerService(context, statusBar, lights); 290 ServiceManager.addService(Context.NOTIFICATION_SERVICE, notification); 291 } catch (Throwable e) { 292 Log.e(TAG, "Failure starting Notification Manager", e); 293 } 294 295 try { 296 Log.i(TAG, "Device Storage Monitor"); 297 ServiceManager.addService(DeviceStorageMonitorService.SERVICE, 298 new DeviceStorageMonitorService(context)); 299 } catch (Throwable e) { 300 Log.e(TAG, "Failure starting DeviceStorageMonitor service", e); 301 } 302 303 try { 304 Log.i(TAG, "Location Manager"); 305 ServiceManager.addService(Context.LOCATION_SERVICE, 306 new LocationManagerService(context)); 307 } catch (Throwable e) { 308 Log.e(TAG, "Failure starting Location Manager", e); 309 } 310 311 try { 312 Log.i(TAG, "Search Service"); 313 ServiceManager.addService(Context.SEARCH_SERVICE, 314 new SearchManagerService(context)); 315 } catch (Throwable e) { 316 Log.e(TAG, "Failure starting Search Service", e); 317 } 318 319 if (INCLUDE_DEMO) { 320 Log.i(TAG, "Installing demo data..."); 321 (new DemoThread(context)).start(); 322 } 323 324 try { 325 Log.i(TAG, "DropBox Service"); 326 ServiceManager.addService(Context.DROPBOX_SERVICE, 327 new DropBoxManagerService(context, new File("/data/system/dropbox"))); 328 } catch (Throwable e) { 329 Log.e(TAG, "Failure starting DropBoxManagerService", e); 330 } 331 332 try { 333 Log.i(TAG, "Wallpaper Service"); 334 wallpaper = new WallpaperManagerService(context); 335 ServiceManager.addService(Context.WALLPAPER_SERVICE, wallpaper); 336 } catch (Throwable e) { 337 Log.e(TAG, "Failure starting Wallpaper Service", e); 338 } 339 340 try { 341 Log.i(TAG, "Audio Service"); 342 ServiceManager.addService(Context.AUDIO_SERVICE, new AudioService(context)); 343 } catch (Throwable e) { 344 Log.e(TAG, "Failure starting Audio Service", e); 345 } 346 347 try { 348 Log.i(TAG, "Headset Observer"); 349 // Listen for wired headset changes 350 headset = new HeadsetObserver(context); 351 } catch (Throwable e) { 352 Log.e(TAG, "Failure starting HeadsetObserver", e); 353 } 354 355 try { 356 Log.i(TAG, "Dock Observer"); 357 // Listen for dock station changes 358 dock = new DockObserver(context, power); 359 } catch (Throwable e) { 360 Log.e(TAG, "Failure starting DockObserver", e); 361 } 362 363 try { 364 Log.i(TAG, "Backup Service"); 365 ServiceManager.addService(Context.BACKUP_SERVICE, 366 new BackupManagerService(context)); 367 } catch (Throwable e) { 368 Log.e(TAG, "Failure starting Backup Service", e); 369 } 370 371 try { 372 Log.i(TAG, "AppWidget Service"); 373 appWidget = new AppWidgetService(context); 374 ServiceManager.addService(Context.APPWIDGET_SERVICE, appWidget); 375 } catch (Throwable e) { 376 Log.e(TAG, "Failure starting AppWidget Service", e); 377 } 378 379 try { 380 com.android.server.status.StatusBarPolicy.installIcons(context, statusBar); 381 } catch (Throwable e) { 382 Log.e(TAG, "Failure installing status bar icons", e); 383 } 384 } 385 386 // make sure the ADB_ENABLED setting value matches the secure property value 387 Settings.Secure.putInt(mContentResolver, Settings.Secure.ADB_ENABLED, 388 "1".equals(SystemProperties.get("persist.service.adb.enable")) ? 1 : 0); 389 390 // register observer to listen for settings changes 391 mContentResolver.registerContentObserver(Settings.Secure.getUriFor(Settings.Secure.ADB_ENABLED), 392 false, new AdbSettingsObserver()); 393 394 // Before things start rolling, be sure we have decided whether 395 // we are in safe mode. 396 final boolean safeMode = wm.detectSafeMode(); 397 if (safeMode) { 398 try { 399 ActivityManagerNative.getDefault().enterSafeMode(); 400 // Post the safe mode state in the Zygote class 401 Zygote.systemInSafeMode = true; 402 // Disable the JIT for the system_server process 403 VMRuntime.getRuntime().disableJitCompilation(); 404 } catch (RemoteException e) { 405 } 406 } else { 407 // Enable the JIT for the system_server process 408 VMRuntime.getRuntime().startJitCompilation(); 409 } 410 411 // It is now time to start up the app processes... 412 413 if (devicePolicy != null) { 414 devicePolicy.systemReady(); 415 } 416 417 if (notification != null) { 418 notification.systemReady(); 419 } 420 421 if (statusBar != null) { 422 statusBar.systemReady(); 423 } 424 wm.systemReady(); 425 power.systemReady(); 426 try { 427 pm.systemReady(); 428 } catch (RemoteException e) { 429 } 430 431 // These are needed to propagate to the runnable below. 432 final BatteryService batteryF = battery; 433 final ConnectivityService connectivityF = connectivity; 434 final DockObserver dockF = dock; 435 final AppWidgetService appWidgetF = appWidget; 436 final WallpaperManagerService wallpaperF = wallpaper; 437 final InputMethodManagerService immF = imm; 438 439 // We now tell the activity manager it is okay to run third party 440 // code. It will call back into us once it has gotten to the state 441 // where third party code can really run (but before it has actually 442 // started launching the initial applications), for us to complete our 443 // initialization. 444 ((ActivityManagerService)ActivityManagerNative.getDefault()) 445 .systemReady(new Runnable() { 446 public void run() { 447 Log.i(TAG, "Making services ready"); 448 449 if (batteryF != null) batteryF.systemReady(); 450 if (connectivityF != null) connectivityF.systemReady(); 451 if (dockF != null) dockF.systemReady(); 452 Watchdog.getInstance().start(); 453 454 // It is now okay to let the various system services start their 455 // third party code... 456 457 if (appWidgetF != null) appWidgetF.systemReady(safeMode); 458 if (wallpaperF != null) wallpaperF.systemReady(); 459 if (immF != null) immF.systemReady(); 460 } 461 }); 462 463 Looper.loop(); 464 Log.d(TAG, "System ServerThread is exiting!"); 465 } 466} 467 468class DemoThread extends Thread 469{ 470 DemoThread(Context context) 471 { 472 mContext = context; 473 } 474 475 @Override 476 public void run() 477 { 478 try { 479 Cursor c = mContext.getContentResolver().query(People.CONTENT_URI, null, null, null, null); 480 boolean hasData = c != null && c.moveToFirst(); 481 if (c != null) { 482 c.deactivate(); 483 } 484 if (!hasData) { 485 DemoDataSet dataset = new DemoDataSet(); 486 dataset.add(mContext); 487 } 488 } catch (Throwable e) { 489 Log.e("SystemServer", "Failure installing demo data", e); 490 } 491 492 } 493 494 Context mContext; 495} 496 497public class SystemServer 498{ 499 private static final String TAG = "SystemServer"; 500 501 public static final int FACTORY_TEST_OFF = 0; 502 public static final int FACTORY_TEST_LOW_LEVEL = 1; 503 public static final int FACTORY_TEST_HIGH_LEVEL = 2; 504 505 static Timer timer; 506 static final long SNAPSHOT_INTERVAL = 60 * 60 * 1000; // 1hr 507 508 /** 509 * This method is called from Zygote to initialize the system. This will cause the native 510 * services (SurfaceFlinger, AudioFlinger, etc..) to be started. After that it will call back 511 * up into init2() to start the Android services. 512 */ 513 native public static void init1(String[] args); 514 515 public static void main(String[] args) { 516 if (SamplingProfilerIntegration.isEnabled()) { 517 SamplingProfilerIntegration.start(); 518 timer = new Timer(); 519 timer.schedule(new TimerTask() { 520 @Override 521 public void run() { 522 SamplingProfilerIntegration.writeSnapshot("system_server"); 523 } 524 }, SNAPSHOT_INTERVAL, SNAPSHOT_INTERVAL); 525 } 526 527 // The system server has to run all of the time, so it needs to be 528 // as efficient as possible with its memory usage. 529 VMRuntime.getRuntime().setTargetHeapUtilization(0.8f); 530 531 System.loadLibrary("android_servers"); 532 init1(args); 533 } 534 535 public static final void init2() { 536 Log.i(TAG, "Entered the Android system server!"); 537 Thread thr = new ServerThread(); 538 thr.setName("android.server.ServerThread"); 539 thr.start(); 540 } 541} 542