SystemServer.java revision f21adf6fc19bc9c6908c6f1aaae203389f104bfa
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.PathClassLoader; 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.BluetoothDeviceService; 40import android.server.search.SearchManagerService; 41import android.util.EventLog; 42import android.util.Log; 43import android.accounts.AccountManagerService; 44 45import java.lang.reflect.Constructor; 46import java.lang.reflect.InvocationTargetException; 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 IPackageManager pm = null; 89 Context context = null; 90 WindowManagerService wm = null; 91 BluetoothDeviceService bluetooth = null; 92 BluetoothA2dpService bluetoothA2dp = null; 93 HeadsetObserver headset = null; 94 95 // Critical services... 96 try { 97 Log.i(TAG, "Starting Entropy Service."); 98 ServiceManager.addService("entropy", new EntropyService()); 99 100 Log.i(TAG, "Starting Power Manager."); 101 power = new PowerManagerService(); 102 ServiceManager.addService(Context.POWER_SERVICE, power); 103 104 Log.i(TAG, "Starting Activity Manager."); 105 context = ActivityManagerService.main(factoryTest); 106 107 Log.i(TAG, "Starting telephony registry"); 108 ServiceManager.addService("telephony.registry", new TelephonyRegistry(context)); 109 110 AttributeCache.init(context); 111 112 Log.i(TAG, "Starting Package Manager."); 113 pm = PackageManagerService.main(context, 114 factoryTest != SystemServer.FACTORY_TEST_OFF); 115 116 ActivityManagerService.setSystemProcess(); 117 118 mContentResolver = context.getContentResolver(); 119 120 try { 121 Log.i(TAG, "Starting Account Manager."); 122 ServiceManager.addService(Context.ACCOUNT_SERVICE, 123 new AccountManagerService(context)); 124 } catch (Throwable e) { 125 Log.e(TAG, "Failure starting Account Manager", e); 126 } 127 128 Log.i(TAG, "Starting Content Manager."); 129 ContentService.main(context, 130 factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL); 131 132 Log.i(TAG, "Starting System Content Providers."); 133 ActivityManagerService.installSystemProviders(); 134 135 Log.i(TAG, "Starting Battery Service."); 136 battery = new BatteryService(context); 137 ServiceManager.addService("battery", battery); 138 139 Log.i(TAG, "Starting Hardware Service."); 140 hardware = new HardwareService(context); 141 ServiceManager.addService("hardware", hardware); 142 143 // only initialize the power service after we have started the 144 // hardware service, content providers and the battery service. 145 power.init(context, hardware, ActivityManagerService.getDefault(), battery); 146 147 Log.i(TAG, "Starting Alarm Manager."); 148 AlarmManagerService alarm = new AlarmManagerService(context); 149 ServiceManager.addService(Context.ALARM_SERVICE, alarm); 150 151 Watchdog.getInstance().init(context, battery, power, alarm, 152 ActivityManagerService.self()); 153 154 // Sensor Service is needed by Window Manager, so this goes first 155 Log.i(TAG, "Starting Sensor Service."); 156 ServiceManager.addService(Context.SENSOR_SERVICE, new SensorService(context)); 157 158 Log.i(TAG, "Starting Window Manager."); 159 wm = WindowManagerService.main(context, power, 160 factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL); 161 ServiceManager.addService(Context.WINDOW_SERVICE, wm); 162 163 ((ActivityManagerService)ServiceManager.getService("activity")) 164 .setWindowManager(wm); 165 166 // Skip Bluetooth if we have an emulator kernel 167 // TODO: Use a more reliable check to see if this product should 168 // support Bluetooth - see bug 988521 169 if (SystemProperties.get("ro.kernel.qemu").equals("1")) { 170 Log.i(TAG, "Registering null Bluetooth Service (emulator)"); 171 ServiceManager.addService(Context.BLUETOOTH_SERVICE, null); 172 } else if (factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL) { 173 Log.i(TAG, "Registering null Bluetooth Service (factory test)"); 174 ServiceManager.addService(Context.BLUETOOTH_SERVICE, null); 175 } else { 176 Log.i(TAG, "Starting Bluetooth Service."); 177 bluetooth = new BluetoothDeviceService(context); 178 bluetooth.init(); 179 ServiceManager.addService(Context.BLUETOOTH_SERVICE, bluetooth); 180 bluetoothA2dp = new BluetoothA2dpService(context, bluetooth); 181 ServiceManager.addService(BluetoothA2dpService.BLUETOOTH_A2DP_SERVICE, 182 bluetoothA2dp); 183 184 int bluetoothOn = Settings.Secure.getInt(mContentResolver, 185 Settings.Secure.BLUETOOTH_ON, 0); 186 if (bluetoothOn > 0) { 187 bluetooth.enable(); 188 } 189 } 190 191 } catch (RuntimeException e) { 192 Log.e("System", "Failure starting core service", e); 193 } 194 195 StatusBarService statusBar = null; 196 InputMethodManagerService imm = null; 197 AppWidgetService appWidget = null; 198 NotificationManagerService notification = null; 199 WallpaperManagerService wallpaper = null; 200 201 if (factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL) { 202 try { 203 Log.i(TAG, "Starting Status Bar Service."); 204 statusBar = new StatusBarService(context); 205 ServiceManager.addService("statusbar", statusBar); 206 } catch (Throwable e) { 207 Log.e(TAG, "Failure starting StatusBarService", e); 208 } 209 210 try { 211 Log.i(TAG, "Starting Clipboard Service."); 212 ServiceManager.addService("clipboard", new ClipboardService(context)); 213 } catch (Throwable e) { 214 Log.e(TAG, "Failure starting Clipboard Service", e); 215 } 216 217 try { 218 Log.i(TAG, "Starting Input Method Service."); 219 imm = new InputMethodManagerService(context, statusBar); 220 ServiceManager.addService(Context.INPUT_METHOD_SERVICE, imm); 221 } catch (Throwable e) { 222 Log.e(TAG, "Failure starting Input Manager Service", e); 223 } 224 225 try { 226 Log.i(TAG, "Starting NetStat Service."); 227 ServiceManager.addService("netstat", new NetStatService(context)); 228 } catch (Throwable e) { 229 Log.e(TAG, "Failure starting NetStat Service", e); 230 } 231 232 try { 233 Log.i(TAG, "Starting Connectivity Service."); 234 ServiceManager.addService(Context.CONNECTIVITY_SERVICE, 235 ConnectivityService.getInstance(context)); 236 } catch (Throwable e) { 237 Log.e(TAG, "Failure starting Connectivity Service", e); 238 } 239 240 try { 241 Log.i(TAG, "Starting Accessibility Manager."); 242 ServiceManager.addService(Context.ACCESSIBILITY_SERVICE, 243 new AccessibilityManagerService(context)); 244 } catch (Throwable e) { 245 Log.e(TAG, "Failure starting Accessibility Manager", e); 246 } 247 248 try { 249 Log.i(TAG, "Starting Notification Manager."); 250 notification = new NotificationManagerService(context, statusBar, hardware); 251 ServiceManager.addService(Context.NOTIFICATION_SERVICE, notification); 252 } catch (Throwable e) { 253 Log.e(TAG, "Failure starting Notification Manager", e); 254 } 255 256 try { 257 // MountService must start after NotificationManagerService 258 Log.i(TAG, "Starting Mount Service."); 259 ServiceManager.addService("mount", new MountService(context)); 260 } catch (Throwable e) { 261 Log.e(TAG, "Failure starting Mount Service", e); 262 } 263 264 try { 265 Log.i(TAG, "Starting DeviceStorageMonitor service"); 266 ServiceManager.addService(DeviceStorageMonitorService.SERVICE, 267 new DeviceStorageMonitorService(context)); 268 } catch (Throwable e) { 269 Log.e(TAG, "Failure starting DeviceStorageMonitor service", e); 270 } 271 272 try { 273 Log.i(TAG, "Starting Location Manager."); 274 ServiceManager.addService(Context.LOCATION_SERVICE, new LocationManagerService(context)); 275 } catch (Throwable e) { 276 Log.e(TAG, "Failure starting Location Manager", e); 277 } 278 279 try { 280 Log.i(TAG, "Starting Search Service."); 281 ServiceManager.addService( Context.SEARCH_SERVICE, new SearchManagerService(context) ); 282 } catch (Throwable e) { 283 Log.e(TAG, "Failure starting Search Service", e); 284 } 285 286 if (INCLUDE_DEMO) { 287 Log.i(TAG, "Installing demo data..."); 288 (new DemoThread(context)).start(); 289 } 290 291 try { 292 Log.i(TAG, "Starting Checkin Service."); 293 Intent intent = new Intent().setComponent(new ComponentName( 294 "com.google.android.server.checkin", 295 "com.google.android.server.checkin.CheckinService")); 296 if (context.startService(intent) == null) { 297 Log.w(TAG, "Using fallback Checkin Service."); 298 ServiceManager.addService("checkin", new FallbackCheckinService(context)); 299 } 300 } catch (Throwable e) { 301 Log.e(TAG, "Failure starting Checkin Service", e); 302 } 303 304 try { 305 Log.i(TAG, "Starting Wallpaper Service"); 306 wallpaper = new WallpaperManagerService(context); 307 ServiceManager.addService(Context.WALLPAPER_SERVICE, wallpaper); 308 } catch (Throwable e) { 309 Log.e(TAG, "Failure starting Wallpaper Service", e); 310 } 311 312 try { 313 Log.i(TAG, "Starting Audio Service"); 314 ServiceManager.addService(Context.AUDIO_SERVICE, new AudioService(context)); 315 } catch (Throwable e) { 316 Log.e(TAG, "Failure starting Audio Service", e); 317 } 318 319 try { 320 Log.i(TAG, "Starting HeadsetObserver"); 321 // Listen for wired headset changes 322 headset = new HeadsetObserver(context); 323 } catch (Throwable e) { 324 Log.e(TAG, "Failure starting HeadsetObserver", e); 325 } 326 327 try { 328 Log.i(TAG, "Starting Backup Service"); 329 ServiceManager.addService(Context.BACKUP_SERVICE, new BackupManagerService(context)); 330 } catch (Throwable e) { 331 Log.e(TAG, "Failure starting Backup Service", e); 332 } 333 334 try { 335 Log.i(TAG, "Starting AppWidget Service"); 336 appWidget = new AppWidgetService(context); 337 ServiceManager.addService(Context.APPWIDGET_SERVICE, appWidget); 338 } catch (Throwable e) { 339 Log.e(TAG, "Failure starting AppWidget Service", e); 340 } 341 342 try { 343 com.android.server.status.StatusBarPolicy.installIcons(context, statusBar); 344 } catch (Throwable e) { 345 Log.e(TAG, "Failure installing status bar icons", e); 346 } 347 } 348 349 // make sure the ADB_ENABLED setting value matches the secure property value 350 Settings.Secure.putInt(mContentResolver, Settings.Secure.ADB_ENABLED, 351 "1".equals(SystemProperties.get("persist.service.adb.enable")) ? 1 : 0); 352 353 // register observer to listen for settings changes 354 mContentResolver.registerContentObserver(Settings.Secure.getUriFor(Settings.Secure.ADB_ENABLED), 355 false, new AdbSettingsObserver()); 356 357 // It is now time to start up the app processes... 358 boolean safeMode = wm.detectSafeMode(); 359 360 if (notification != null) { 361 notification.systemReady(); 362 } 363 364 if (statusBar != null) { 365 statusBar.systemReady(); 366 } 367 if (imm != null) { 368 imm.systemReady(); 369 } 370 wm.systemReady(); 371 power.systemReady(); 372 try { 373 pm.systemReady(); 374 } catch (RemoteException e) { 375 } 376 if (appWidget != null) { 377 appWidget.systemReady(safeMode); 378 } 379 380 // After making the following code, third party code may be running... 381 try { 382 ActivityManagerNative.getDefault().systemReady(); 383 } catch (RemoteException e) { 384 } 385 386 if (wallpaper != null) wallpaper.systemReady(); 387 battery.systemReady(); 388 Watchdog.getInstance().start(); 389 390 Looper.loop(); 391 Log.d(TAG, "System ServerThread is exiting!"); 392 } 393} 394 395class DemoThread extends Thread 396{ 397 DemoThread(Context context) 398 { 399 mContext = context; 400 } 401 402 @Override 403 public void run() 404 { 405 try { 406 Cursor c = mContext.getContentResolver().query(People.CONTENT_URI, null, null, null, null); 407 boolean hasData = c != null && c.moveToFirst(); 408 if (c != null) { 409 c.deactivate(); 410 } 411 if (!hasData) { 412 DemoDataSet dataset = new DemoDataSet(); 413 dataset.add(mContext); 414 } 415 } catch (Throwable e) { 416 Log.e("SystemServer", "Failure installing demo data", e); 417 } 418 419 } 420 421 Context mContext; 422} 423 424public class SystemServer 425{ 426 private static final String TAG = "SystemServer"; 427 428 public static final int FACTORY_TEST_OFF = 0; 429 public static final int FACTORY_TEST_LOW_LEVEL = 1; 430 public static final int FACTORY_TEST_HIGH_LEVEL = 2; 431 432 /** 433 * This method is called from Zygote to initialize the system. This will cause the native 434 * services (SurfaceFlinger, AudioFlinger, etc..) to be started. After that it will call back 435 * up into init2() to start the Android services. 436 */ 437 native public static void init1(String[] args); 438 439 public static void main(String[] args) { 440 // The system server has to run all of the time, so it needs to be 441 // as efficient as possible with its memory usage. 442 VMRuntime.getRuntime().setTargetHeapUtilization(0.8f); 443 444 System.loadLibrary("android_servers"); 445 init1(args); 446 } 447 448 public static final void init2() { 449 Log.i(TAG, "Entered the Android system server!"); 450 Thread thr = new ServerThread(); 451 thr.setName("android.server.ServerThread"); 452 thr.start(); 453 } 454} 455