SystemServer.java revision 302754801cacf19a99c7fa1b88a195bb8f2b0915
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.IBinder; 36import android.os.Looper; 37import android.os.RemoteException; 38import android.os.ServiceManager; 39import android.os.SystemClock; 40import android.os.SystemProperties; 41import android.provider.Contacts.People; 42import android.provider.Settings; 43import android.server.BluetoothA2dpService; 44import android.server.BluetoothDeviceService; 45import android.server.search.SearchManagerService; 46import android.util.EventLog; 47import android.util.Log; 48 49import java.lang.reflect.Constructor; 50import java.lang.reflect.InvocationTargetException; 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(LOG_BOOT_PROGRESS_SYSTEM_RUN, 76 SystemClock.uptimeMillis()); 77 78 ActivityManagerService.prepareTraceFile(false); // create dir 79 80 Looper.prepare(); 81 82 android.os.Process.setThreadPriority( 83 android.os.Process.THREAD_PRIORITY_FOREGROUND); 84 85 String factoryTestStr = SystemProperties.get("ro.factorytest"); 86 int factoryTest = "".equals(factoryTestStr) ? SystemServer.FACTORY_TEST_OFF 87 : Integer.parseInt(factoryTestStr); 88 89 HardwareService hardware = null; 90 PowerManagerService power = null; 91 IPackageManager pm = null; 92 Context context = null; 93 WindowManagerService wm = null; 94 BluetoothDeviceService bluetooth = null; 95 BluetoothA2dpService bluetoothA2dp = null; 96 HeadsetObserver headset = null; 97 98 // Critical services... 99 try { 100 Log.i(TAG, "Starting Entropy Service."); 101 ServiceManager.addService("entropy", new EntropyService()); 102 103 Log.i(TAG, "Starting Power Manager."); 104 power = new PowerManagerService(); 105 ServiceManager.addService(Context.POWER_SERVICE, power); 106 107 Log.i(TAG, "Starting Activity Manager."); 108 context = ActivityManagerService.main(factoryTest); 109 110 Log.i(TAG, "Starting telephony registry"); 111 ServiceManager.addService("telephony.registry", new TelephonyRegistry(context)); 112 113 AttributeCache.init(context); 114 115 Log.i(TAG, "Starting Package Manager."); 116 pm = PackageManagerService.main(context, 117 factoryTest != SystemServer.FACTORY_TEST_OFF); 118 119 ActivityManagerService.setSystemProcess(); 120 121 mContentResolver = context.getContentResolver(); 122 123 Log.i(TAG, "Starting Content Manager."); 124 ContentService.main(context, 125 factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL); 126 127 Log.i(TAG, "Starting System Content Providers."); 128 ActivityManagerService.installSystemProviders(); 129 130 Log.i(TAG, "Starting Battery Service."); 131 BatteryService battery = new BatteryService(context); 132 ServiceManager.addService("battery", battery); 133 134 Log.i(TAG, "Starting Hardware Service."); 135 hardware = new HardwareService(context); 136 ServiceManager.addService("hardware", hardware); 137 138 // only initialize the power service after we have started the 139 // hardware service, content providers and the battery service. 140 power.init(context, hardware, ActivityManagerService.getDefault(), battery); 141 142 Log.i(TAG, "Starting Alarm Manager."); 143 AlarmManagerService alarm = new AlarmManagerService(context); 144 ServiceManager.addService(Context.ALARM_SERVICE, alarm); 145 146 Watchdog.getInstance().init(context, battery, power, alarm, 147 ActivityManagerService.self()); 148 149 // Sensor Service is needed by Window Manager, so this goes first 150 Log.i(TAG, "Starting Sensor Service."); 151 ServiceManager.addService(Context.SENSOR_SERVICE, new SensorService(context)); 152 153 Log.i(TAG, "Starting Window Manager."); 154 wm = WindowManagerService.main(context, power, 155 factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL); 156 ServiceManager.addService(Context.WINDOW_SERVICE, wm); 157 158 ((ActivityManagerService)ServiceManager.getService("activity")) 159 .setWindowManager(wm); 160 161 // Skip Bluetooth if we have an emulator kernel 162 // TODO: Use a more reliable check to see if this product should 163 // support Bluetooth - see bug 988521 164 if (SystemProperties.get("ro.kernel.qemu").equals("1")) { 165 Log.i(TAG, "Registering null Bluetooth Service (emulator)"); 166 ServiceManager.addService(Context.BLUETOOTH_SERVICE, null); 167 } else if (factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL) { 168 Log.i(TAG, "Registering null Bluetooth Service (factory test)"); 169 ServiceManager.addService(Context.BLUETOOTH_SERVICE, null); 170 } else { 171 Log.i(TAG, "Starting Bluetooth Service."); 172 bluetooth = new BluetoothDeviceService(context); 173 bluetooth.init(); 174 ServiceManager.addService(Context.BLUETOOTH_SERVICE, bluetooth); 175 bluetoothA2dp = new BluetoothA2dpService(context); 176 ServiceManager.addService(BluetoothA2dpService.BLUETOOTH_A2DP_SERVICE, 177 bluetoothA2dp); 178 179 int bluetoothOn = Settings.Secure.getInt(mContentResolver, 180 Settings.Secure.BLUETOOTH_ON, 0); 181 if (bluetoothOn > 0) { 182 bluetooth.enable(); 183 } 184 } 185 186 } catch (RuntimeException e) { 187 Log.e("System", "Failure starting core service", e); 188 } 189 190 StatusBarService statusBar = null; 191 InputMethodManagerService imm = null; 192 AppWidgetService appWidget = null; 193 NotificationManagerService notification = null; 194 195 if (factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL) { 196 try { 197 Log.i(TAG, "Starting Status Bar Service."); 198 statusBar = new StatusBarService(context); 199 ServiceManager.addService("statusbar", statusBar); 200 } catch (Throwable e) { 201 Log.e(TAG, "Failure starting StatusBarService", e); 202 } 203 204 try { 205 Log.i(TAG, "Starting Clipboard Service."); 206 ServiceManager.addService("clipboard", new ClipboardService(context)); 207 } catch (Throwable e) { 208 Log.e(TAG, "Failure starting Clipboard Service", e); 209 } 210 211 try { 212 Log.i(TAG, "Starting Input Method Service."); 213 imm = new InputMethodManagerService(context, statusBar); 214 ServiceManager.addService(Context.INPUT_METHOD_SERVICE, imm); 215 } catch (Throwable e) { 216 Log.e(TAG, "Failure starting Input Manager Service", e); 217 } 218 219 try { 220 Log.i(TAG, "Starting NetStat Service."); 221 ServiceManager.addService("netstat", new NetStatService(context)); 222 } catch (Throwable e) { 223 Log.e(TAG, "Failure starting NetStat Service", e); 224 } 225 226 try { 227 Log.i(TAG, "Starting Connectivity Service."); 228 ServiceManager.addService(Context.CONNECTIVITY_SERVICE, 229 ConnectivityService.getInstance(context)); 230 } catch (Throwable e) { 231 Log.e(TAG, "Failure starting Connectivity Service", e); 232 } 233 234 try { 235 Log.i(TAG, "Starting Accessibility Manager."); 236 ServiceManager.addService(Context.ACCESSIBILITY_SERVICE, 237 new AccessibilityManagerService(context)); 238 } catch (Throwable e) { 239 Log.e(TAG, "Failure starting Accessibility Manager", e); 240 } 241 242 try { 243 Log.i(TAG, "Starting Notification Manager."); 244 notification = new NotificationManagerService(context, statusBar, hardware); 245 ServiceManager.addService(Context.NOTIFICATION_SERVICE, notification); 246 } catch (Throwable e) { 247 Log.e(TAG, "Failure starting Notification Manager", e); 248 } 249 250 try { 251 // MountService must start after NotificationManagerService 252 Log.i(TAG, "Starting Mount Service."); 253 ServiceManager.addService("mount", new MountService(context)); 254 } catch (Throwable e) { 255 Log.e(TAG, "Failure starting Mount Service", e); 256 } 257 258 try { 259 Log.i(TAG, "Starting DeviceStorageMonitor service"); 260 ServiceManager.addService(DeviceStorageMonitorService.SERVICE, 261 new DeviceStorageMonitorService(context)); 262 } catch (Throwable e) { 263 Log.e(TAG, "Failure starting DeviceStorageMonitor service", e); 264 } 265 266 try { 267 Log.i(TAG, "Starting Location Manager."); 268 ServiceManager.addService(Context.LOCATION_SERVICE, new LocationManagerService(context)); 269 } catch (Throwable e) { 270 Log.e(TAG, "Failure starting Location Manager", e); 271 } 272 273 try { 274 Log.i(TAG, "Starting Search Service."); 275 ServiceManager.addService( Context.SEARCH_SERVICE, new SearchManagerService(context) ); 276 } catch (Throwable e) { 277 Log.e(TAG, "Failure starting Search Service", e); 278 } 279 280 if (INCLUDE_DEMO) { 281 Log.i(TAG, "Installing demo data..."); 282 (new DemoThread(context)).start(); 283 } 284 285 try { 286 Log.i(TAG, "Starting Checkin Service."); 287 Intent intent = new Intent().setComponent(new ComponentName( 288 "com.google.android.server.checkin", 289 "com.google.android.server.checkin.CheckinService")); 290 if (context.startService(intent) == null) { 291 Log.w(TAG, "Using fallback Checkin Service."); 292 ServiceManager.addService("checkin", new FallbackCheckinService(context)); 293 } 294 } catch (Throwable e) { 295 Log.e(TAG, "Failure starting Checkin Service", e); 296 } 297 298 try { 299 Log.i(TAG, "Starting Wallpaper Service"); 300 ServiceManager.addService(Context.WALLPAPER_SERVICE, new WallpaperService(context)); 301 } catch (Throwable e) { 302 Log.e(TAG, "Failure starting Wallpaper Service", e); 303 } 304 305 try { 306 Log.i(TAG, "Starting Audio Service"); 307 ServiceManager.addService(Context.AUDIO_SERVICE, new AudioService(context)); 308 } catch (Throwable e) { 309 Log.e(TAG, "Failure starting Audio Service", e); 310 } 311 312 try { 313 Log.i(TAG, "Starting HeadsetObserver"); 314 // Listen for wired headset changes 315 headset = new HeadsetObserver(context); 316 } catch (Throwable e) { 317 Log.e(TAG, "Failure starting HeadsetObserver", e); 318 } 319 320 try { 321 Log.i(TAG, "Starting Backup Service"); 322 ServiceManager.addService(Context.BACKUP_SERVICE, new BackupManagerService(context)); 323 } catch (Throwable e) { 324 Log.e(TAG, "Failure starting Backup Service", e); 325 } 326 327 try { 328 Log.i(TAG, "Starting AppWidget Service"); 329 appWidget = new AppWidgetService(context); 330 ServiceManager.addService(Context.APPWIDGET_SERVICE, appWidget); 331 } catch (Throwable e) { 332 Log.e(TAG, "Failure starting AppWidget Service", e); 333 } 334 335 try { 336 com.android.server.status.StatusBarPolicy.installIcons(context, statusBar); 337 } catch (Throwable e) { 338 Log.e(TAG, "Failure installing status bar icons", e); 339 } 340 } 341 342 // make sure the ADB_ENABLED setting value matches the secure property value 343 Settings.Secure.putInt(mContentResolver, Settings.Secure.ADB_ENABLED, 344 "1".equals(SystemProperties.get("persist.service.adb.enable")) ? 1 : 0); 345 346 // register observer to listen for settings changes 347 mContentResolver.registerContentObserver(Settings.Secure.getUriFor(Settings.Secure.ADB_ENABLED), 348 false, new AdbSettingsObserver()); 349 350 // It is now time to start up the app processes... 351 boolean safeMode = wm.detectSafeMode(); 352 353 if (notification != null) { 354 notification.systemReady(); 355 } 356 357 if (statusBar != null) { 358 statusBar.systemReady(); 359 } 360 if (imm != null) { 361 imm.systemReady(); 362 } 363 wm.systemReady(); 364 power.systemReady(); 365 try { 366 pm.systemReady(); 367 } catch (RemoteException e) { 368 } 369 if (appWidget != null) { 370 appWidget.systemReady(safeMode); 371 } 372 373 // After making the following code, third party code may be running... 374 try { 375 ActivityManagerNative.getDefault().systemReady(); 376 } catch (RemoteException e) { 377 } 378 379 Watchdog.getInstance().start(); 380 381 Looper.loop(); 382 Log.d(TAG, "System ServerThread is exiting!"); 383 } 384} 385 386class DemoThread extends Thread 387{ 388 DemoThread(Context context) 389 { 390 mContext = context; 391 } 392 393 @Override 394 public void run() 395 { 396 try { 397 Cursor c = mContext.getContentResolver().query(People.CONTENT_URI, null, null, null, null); 398 boolean hasData = c != null && c.moveToFirst(); 399 if (c != null) { 400 c.deactivate(); 401 } 402 if (!hasData) { 403 DemoDataSet dataset = new DemoDataSet(); 404 dataset.add(mContext); 405 } 406 } catch (Throwable e) { 407 Log.e("SystemServer", "Failure installing demo data", e); 408 } 409 410 } 411 412 Context mContext; 413} 414 415public class SystemServer 416{ 417 private static final String TAG = "SystemServer"; 418 419 public static final int FACTORY_TEST_OFF = 0; 420 public static final int FACTORY_TEST_LOW_LEVEL = 1; 421 public static final int FACTORY_TEST_HIGH_LEVEL = 2; 422 423 /** 424 * This method is called from Zygote to initialize the system. This will cause the native 425 * services (SurfaceFlinger, AudioFlinger, etc..) to be started. After that it will call back 426 * up into init2() to start the Android services. 427 */ 428 native public static void init1(String[] args); 429 430 public static void main(String[] args) { 431 // The system server has to run all of the time, so it needs to be 432 // as efficient as possible with its memory usage. 433 VMRuntime.getRuntime().setTargetHeapUtilization(0.8f); 434 435 System.loadLibrary("android_servers"); 436 init1(args); 437 } 438 439 public static final void init2() { 440 Log.i(TAG, "Entered the Android system server!"); 441 Thread thr = new ServerThread(); 442 thr.setName("android.server.ServerThread"); 443 thr.start(); 444 } 445} 446