SystemServer.java revision d5ac1ae36b4e096eb97984334f86d0c68abea2f7
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 IPackageManager pm = null; 88 Context context = null; 89 WindowManagerService wm = null; 90 BluetoothDeviceService bluetooth = null; 91 BluetoothA2dpService bluetoothA2dp = null; 92 HeadsetObserver headset = null; 93 94 // Critical services... 95 try { 96 Log.i(TAG, "Starting Power Manager."); 97 power = new PowerManagerService(); 98 ServiceManager.addService(Context.POWER_SERVICE, power); 99 100 Log.i(TAG, "Starting Activity Manager."); 101 context = ActivityManagerService.main(factoryTest); 102 103 Log.i(TAG, "Starting telephony registry"); 104 ServiceManager.addService("telephony.registry", new TelephonyRegistry(context)); 105 106 AttributeCache.init(context); 107 108 Log.i(TAG, "Starting Package Manager."); 109 pm = PackageManagerService.main(context, 110 factoryTest != SystemServer.FACTORY_TEST_OFF); 111 112 ActivityManagerService.setSystemProcess(); 113 114 mContentResolver = context.getContentResolver(); 115 116 try { 117 Log.i(TAG, "Starting Account Manager."); 118 ServiceManager.addService(Context.ACCOUNT_SERVICE, 119 new AccountManagerService(context)); 120 } catch (Throwable e) { 121 Log.e(TAG, "Failure starting Account Manager", e); 122 } 123 124 Log.i(TAG, "Starting Content Manager."); 125 ContentService.main(context, 126 factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL); 127 128 Log.i(TAG, "Starting System Content Providers."); 129 ActivityManagerService.installSystemProviders(); 130 131 Log.i(TAG, "Starting Battery Service."); 132 BatteryService battery = new BatteryService(context); 133 ServiceManager.addService("battery", battery); 134 135 Log.i(TAG, "Starting Hardware Service."); 136 hardware = new HardwareService(context); 137 ServiceManager.addService("hardware", hardware); 138 139 // only initialize the power service after we have started the 140 // hardware service, content providers and the battery service. 141 power.init(context, hardware, ActivityManagerService.getDefault(), battery); 142 143 Log.i(TAG, "Starting Alarm Manager."); 144 AlarmManagerService alarm = new AlarmManagerService(context); 145 ServiceManager.addService(Context.ALARM_SERVICE, alarm); 146 147 Watchdog.getInstance().init(context, battery, power, alarm, 148 ActivityManagerService.self()); 149 150 // Sensor Service is needed by Window Manager, so this goes first 151 Log.i(TAG, "Starting Sensor Service."); 152 ServiceManager.addService(Context.SENSOR_SERVICE, new SensorService(context)); 153 154 Log.i(TAG, "Starting Window Manager."); 155 wm = WindowManagerService.main(context, power, 156 factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL); 157 ServiceManager.addService(Context.WINDOW_SERVICE, wm); 158 159 ((ActivityManagerService)ServiceManager.getService("activity")) 160 .setWindowManager(wm); 161 162 // Skip Bluetooth if we have an emulator kernel 163 // TODO: Use a more reliable check to see if this product should 164 // support Bluetooth - see bug 988521 165 if (SystemProperties.get("ro.kernel.qemu").equals("1")) { 166 Log.i(TAG, "Registering null Bluetooth Service (emulator)"); 167 ServiceManager.addService(Context.BLUETOOTH_SERVICE, null); 168 } else if (factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL) { 169 Log.i(TAG, "Registering null Bluetooth Service (factory test)"); 170 ServiceManager.addService(Context.BLUETOOTH_SERVICE, null); 171 } else { 172 Log.i(TAG, "Starting Bluetooth Service."); 173 bluetooth = new BluetoothDeviceService(context); 174 bluetooth.init(); 175 ServiceManager.addService(Context.BLUETOOTH_SERVICE, bluetooth); 176 bluetoothA2dp = new BluetoothA2dpService(context, bluetooth); 177 ServiceManager.addService(BluetoothA2dpService.BLUETOOTH_A2DP_SERVICE, 178 bluetoothA2dp); 179 180 int bluetoothOn = Settings.Secure.getInt(mContentResolver, 181 Settings.Secure.BLUETOOTH_ON, 0); 182 if (bluetoothOn > 0) { 183 bluetooth.enable(); 184 } 185 } 186 187 } catch (RuntimeException e) { 188 Log.e("System", "Failure starting core service", e); 189 } 190 191 StatusBarService statusBar = null; 192 InputMethodManagerService imm = null; 193 AppWidgetService appWidget = 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 ServiceManager.addService(Context.NOTIFICATION_SERVICE, 245 new NotificationManagerService(context, statusBar, hardware)); 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 if (statusBar != null) { 353 statusBar.systemReady(); 354 } 355 if (imm != null) { 356 imm.systemReady(); 357 } 358 wm.systemReady(); 359 power.systemReady(); 360 try { 361 pm.systemReady(); 362 } catch (RemoteException e) { 363 } 364 if (appWidget != null) { 365 appWidget.systemReady(safeMode); 366 } 367 368 // After making the following code, third party code may be running... 369 try { 370 ActivityManagerNative.getDefault().systemReady(); 371 } catch (RemoteException e) { 372 } 373 374 Watchdog.getInstance().start(); 375 376 Looper.loop(); 377 Log.d(TAG, "System ServerThread is exiting!"); 378 } 379} 380 381class DemoThread extends Thread 382{ 383 DemoThread(Context context) 384 { 385 mContext = context; 386 } 387 388 @Override 389 public void run() 390 { 391 try { 392 Cursor c = mContext.getContentResolver().query(People.CONTENT_URI, null, null, null, null); 393 boolean hasData = c != null && c.moveToFirst(); 394 if (c != null) { 395 c.deactivate(); 396 } 397 if (!hasData) { 398 DemoDataSet dataset = new DemoDataSet(); 399 dataset.add(mContext); 400 } 401 } catch (Throwable e) { 402 Log.e("SystemServer", "Failure installing demo data", e); 403 } 404 405 } 406 407 Context mContext; 408} 409 410public class SystemServer 411{ 412 private static final String TAG = "SystemServer"; 413 414 public static final int FACTORY_TEST_OFF = 0; 415 public static final int FACTORY_TEST_LOW_LEVEL = 1; 416 public static final int FACTORY_TEST_HIGH_LEVEL = 2; 417 418 /** 419 * This method is called from Zygote to initialize the system. This will cause the native 420 * services (SurfaceFlinger, AudioFlinger, etc..) to be started. After that it will call back 421 * up into init2() to start the Android services. 422 */ 423 native public static void init1(String[] args); 424 425 public static void main(String[] args) { 426 // The system server has to run all of the time, so it needs to be 427 // as efficient as possible with its memory usage. 428 VMRuntime.getRuntime().setTargetHeapUtilization(0.8f); 429 430 System.loadLibrary("android_servers"); 431 init1(args); 432 } 433 434 public static final void init2() { 435 Log.i(TAG, "Entered the Android system server!"); 436 Thread thr = new ServerThread(); 437 thr.setName("android.server.ServerThread"); 438 thr.start(); 439 } 440} 441