SystemServer.java revision 9456714cfb9eb5ba4882fdcc922b787d77ed4da4
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.internal.app.ShutdownThread; 21import com.android.internal.os.BinderInternal; 22import com.android.internal.os.SamplingProfilerIntegration; 23import com.trustedlogic.trustednfc.android.server.NfcService; 24 25import dalvik.system.VMRuntime; 26import dalvik.system.Zygote; 27 28import android.accounts.AccountManagerService; 29import android.app.ActivityManagerNative; 30import android.bluetooth.BluetoothAdapter; 31import android.content.ContentResolver; 32import android.content.ContentService; 33import android.content.Context; 34import android.content.pm.IPackageManager; 35import android.content.res.Configuration; 36import android.database.ContentObserver; 37import android.media.AudioService; 38import android.os.Build; 39import android.os.Looper; 40import android.os.RemoteException; 41import android.os.ServiceManager; 42import android.os.StrictMode; 43import android.os.SystemClock; 44import android.os.SystemProperties; 45import android.provider.Contacts.People; 46import android.provider.Settings; 47import android.server.BluetoothA2dpService; 48import android.server.BluetoothService; 49import android.server.search.SearchManagerService; 50import android.util.DisplayMetrics; 51import android.util.EventLog; 52import android.util.Log; 53import android.util.Slog; 54import android.view.Display; 55import android.view.WindowManager; 56 57import java.io.File; 58import java.util.Timer; 59import java.util.TimerTask; 60 61class ServerThread extends Thread { 62 private static final String TAG = "SystemServer"; 63 64 ContentResolver mContentResolver; 65 66 private class AdbSettingsObserver extends ContentObserver { 67 public AdbSettingsObserver() { 68 super(null); 69 } 70 @Override 71 public void onChange(boolean selfChange) { 72 boolean enableAdb = (Settings.Secure.getInt(mContentResolver, 73 Settings.Secure.ADB_ENABLED, 0) > 0); 74 // setting this secure property will start or stop adbd 75 SystemProperties.set("persist.service.adb.enable", enableAdb ? "1" : "0"); 76 } 77 } 78 79 @Override 80 public void run() { 81 EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_SYSTEM_RUN, 82 SystemClock.uptimeMillis()); 83 84 Looper.prepare(); 85 86 android.os.Process.setThreadPriority( 87 android.os.Process.THREAD_PRIORITY_FOREGROUND); 88 89 BinderInternal.disableBackgroundScheduling(true); 90 android.os.Process.setCanSelfBackground(false); 91 92 // Check whether we failed to shut down last time we tried. 93 { 94 final String shutdownAction = SystemProperties.get( 95 ShutdownThread.SHUTDOWN_ACTION_PROPERTY, ""); 96 if (shutdownAction != null && shutdownAction.length() > 0) { 97 boolean reboot = (shutdownAction.charAt(0) == '1'); 98 99 final String reason; 100 if (shutdownAction.length() > 1) { 101 reason = shutdownAction.substring(1, shutdownAction.length()); 102 } else { 103 reason = null; 104 } 105 106 ShutdownThread.rebootOrShutdown(reboot, reason); 107 } 108 } 109 110 String factoryTestStr = SystemProperties.get("ro.factorytest"); 111 int factoryTest = "".equals(factoryTestStr) ? SystemServer.FACTORY_TEST_OFF 112 : Integer.parseInt(factoryTestStr); 113 114 LightsService lights = null; 115 PowerManagerService power = null; 116 BatteryService battery = null; 117 ConnectivityService connectivity = null; 118 IPackageManager pm = null; 119 Context context = null; 120 WindowManagerService wm = null; 121 BluetoothService bluetooth = null; 122 BluetoothA2dpService bluetoothA2dp = null; 123 HeadsetObserver headset = null; 124 DockObserver dock = null; 125 UsbObserver usb = null; 126 UiModeManagerService uiMode = null; 127 RecognitionManagerService recognition = null; 128 ThrottleService throttle = null; 129 NetworkTimeUpdateService networkTimeUpdater = null; 130 131 // Critical services... 132 try { 133 Slog.i(TAG, "Entropy Service"); 134 ServiceManager.addService("entropy", new EntropyService()); 135 136 Slog.i(TAG, "Power Manager"); 137 power = new PowerManagerService(); 138 ServiceManager.addService(Context.POWER_SERVICE, power); 139 140 Slog.i(TAG, "Activity Manager"); 141 context = ActivityManagerService.main(factoryTest); 142 143 Slog.i(TAG, "Telephony Registry"); 144 ServiceManager.addService("telephony.registry", new TelephonyRegistry(context)); 145 146 AttributeCache.init(context); 147 148 Slog.i(TAG, "Package Manager"); 149 pm = PackageManagerService.main(context, 150 factoryTest != SystemServer.FACTORY_TEST_OFF); 151 152 ActivityManagerService.setSystemProcess(); 153 154 mContentResolver = context.getContentResolver(); 155 156 // The AccountManager must come before the ContentService 157 try { 158 Slog.i(TAG, "Account Manager"); 159 ServiceManager.addService(Context.ACCOUNT_SERVICE, 160 new AccountManagerService(context)); 161 } catch (Throwable e) { 162 Slog.e(TAG, "Failure starting Account Manager", e); 163 } 164 165 Slog.i(TAG, "Content Manager"); 166 ContentService.main(context, 167 factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL); 168 169 Slog.i(TAG, "System Content Providers"); 170 ActivityManagerService.installSystemProviders(); 171 172 Slog.i(TAG, "Battery Service"); 173 battery = new BatteryService(context); 174 ServiceManager.addService("battery", battery); 175 176 Slog.i(TAG, "Lights Service"); 177 lights = new LightsService(context); 178 179 Slog.i(TAG, "Vibrator Service"); 180 ServiceManager.addService("vibrator", new VibratorService(context)); 181 182 // only initialize the power service after we have started the 183 // lights service, content providers and the battery service. 184 power.init(context, lights, ActivityManagerService.getDefault(), battery); 185 186 Slog.i(TAG, "Alarm Manager"); 187 AlarmManagerService alarm = new AlarmManagerService(context); 188 ServiceManager.addService(Context.ALARM_SERVICE, alarm); 189 190 Slog.i(TAG, "Init Watchdog"); 191 Watchdog.getInstance().init(context, battery, power, alarm, 192 ActivityManagerService.self()); 193 194 Slog.i(TAG, "Window Manager"); 195 wm = WindowManagerService.main(context, power, 196 factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL); 197 ServiceManager.addService(Context.WINDOW_SERVICE, wm); 198 199 ((ActivityManagerService)ServiceManager.getService("activity")) 200 .setWindowManager(wm); 201 202 // Skip Bluetooth if we have an emulator kernel 203 // TODO: Use a more reliable check to see if this product should 204 // support Bluetooth - see bug 988521 205 if (SystemProperties.get("ro.kernel.qemu").equals("1")) { 206 Slog.i(TAG, "Registering null Bluetooth Service (emulator)"); 207 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, null); 208 } else if (factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL) { 209 Slog.i(TAG, "Registering null Bluetooth Service (factory test)"); 210 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, null); 211 } else { 212 Slog.i(TAG, "Bluetooth Service"); 213 bluetooth = new BluetoothService(context); 214 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, bluetooth); 215 bluetooth.initAfterRegistration(); 216 bluetoothA2dp = new BluetoothA2dpService(context, bluetooth); 217 ServiceManager.addService(BluetoothA2dpService.BLUETOOTH_A2DP_SERVICE, 218 bluetoothA2dp); 219 220 int bluetoothOn = Settings.Secure.getInt(mContentResolver, 221 Settings.Secure.BLUETOOTH_ON, 0); 222 if (bluetoothOn > 0) { 223 bluetooth.enable(); 224 } 225 } 226 227 } catch (RuntimeException e) { 228 Slog.e("System", "Failure starting core service", e); 229 } 230 231 DevicePolicyManagerService devicePolicy = null; 232 StatusBarManagerService statusBar = null; 233 InputMethodManagerService imm = null; 234 AppWidgetService appWidget = null; 235 NotificationManagerService notification = null; 236 WallpaperManagerService wallpaper = null; 237 LocationManagerService location = null; 238 CountryDetectorService countryDetector = null; 239 240 if (factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL) { 241 try { 242 Slog.i(TAG, "Device Policy"); 243 devicePolicy = new DevicePolicyManagerService(context); 244 ServiceManager.addService(Context.DEVICE_POLICY_SERVICE, devicePolicy); 245 } catch (Throwable e) { 246 Slog.e(TAG, "Failure starting DevicePolicyService", e); 247 } 248 249 try { 250 Slog.i(TAG, "Status Bar"); 251 statusBar = new StatusBarManagerService(context); 252 ServiceManager.addService(Context.STATUS_BAR_SERVICE, statusBar); 253 } catch (Throwable e) { 254 Slog.e(TAG, "Failure starting StatusBarManagerService", e); 255 } 256 257 try { 258 Slog.i(TAG, "Clipboard Service"); 259 ServiceManager.addService(Context.CLIPBOARD_SERVICE, 260 new ClipboardService(context)); 261 } catch (Throwable e) { 262 Slog.e(TAG, "Failure starting Clipboard Service", e); 263 } 264 265 try { 266 Slog.i(TAG, "Input Method Service"); 267 imm = new InputMethodManagerService(context, statusBar); 268 ServiceManager.addService(Context.INPUT_METHOD_SERVICE, imm); 269 } catch (Throwable e) { 270 Slog.e(TAG, "Failure starting Input Manager Service", e); 271 } 272 273 try { 274 Slog.i(TAG, "NetStat Service"); 275 ServiceManager.addService("netstat", new NetStatService(context)); 276 } catch (Throwable e) { 277 Slog.e(TAG, "Failure starting NetStat Service", e); 278 } 279 280 try { 281 Slog.i(TAG, "NetworkManagement Service"); 282 ServiceManager.addService( 283 Context.NETWORKMANAGEMENT_SERVICE, 284 NetworkManagementService.create(context)); 285 } catch (Throwable e) { 286 Slog.e(TAG, "Failure starting NetworkManagement Service", e); 287 } 288 289 try { 290 Slog.i(TAG, "Connectivity Service"); 291 connectivity = ConnectivityService.getInstance(context); 292 ServiceManager.addService(Context.CONNECTIVITY_SERVICE, connectivity); 293 } catch (Throwable e) { 294 Slog.e(TAG, "Failure starting Connectivity Service", e); 295 } 296 297 try { 298 Slog.i(TAG, "Throttle Service"); 299 throttle = new ThrottleService(context); 300 ServiceManager.addService( 301 Context.THROTTLE_SERVICE, throttle); 302 } catch (Throwable e) { 303 Slog.e(TAG, "Failure starting ThrottleService", e); 304 } 305 306 try { 307 Slog.i(TAG, "Accessibility Manager"); 308 ServiceManager.addService(Context.ACCESSIBILITY_SERVICE, 309 new AccessibilityManagerService(context)); 310 } catch (Throwable e) { 311 Slog.e(TAG, "Failure starting Accessibility Manager", e); 312 } 313 314 try { 315 /* 316 * NotificationManagerService is dependant on MountService, 317 * (for media / usb notifications) so we must start MountService first. 318 */ 319 Slog.i(TAG, "Mount Service"); 320 ServiceManager.addService("mount", new MountService(context)); 321 } catch (Throwable e) { 322 Slog.e(TAG, "Failure starting Mount Service", e); 323 } 324 325 try { 326 Slog.i(TAG, "Notification Manager"); 327 notification = new NotificationManagerService(context, statusBar, lights); 328 ServiceManager.addService(Context.NOTIFICATION_SERVICE, notification); 329 } catch (Throwable e) { 330 Slog.e(TAG, "Failure starting Notification Manager", e); 331 } 332 333 try { 334 Slog.i(TAG, "Device Storage Monitor"); 335 ServiceManager.addService(DeviceStorageMonitorService.SERVICE, 336 new DeviceStorageMonitorService(context)); 337 } catch (Throwable e) { 338 Slog.e(TAG, "Failure starting DeviceStorageMonitor service", e); 339 } 340 341 try { 342 Slog.i(TAG, "Location Manager"); 343 location = new LocationManagerService(context); 344 ServiceManager.addService(Context.LOCATION_SERVICE, location); 345 } catch (Throwable e) { 346 Slog.e(TAG, "Failure starting Location Manager", e); 347 } 348 349 try { 350 Slog.i(TAG, "Country Detector"); 351 countryDetector = new CountryDetectorService(context); 352 ServiceManager.addService(Context.COUNTRY_DETECTOR, countryDetector); 353 } catch (Throwable e) { 354 Slog.e(TAG, "Failure starting Country Detector", e); 355 } 356 357 try { 358 Slog.i(TAG, "Search Service"); 359 ServiceManager.addService(Context.SEARCH_SERVICE, 360 new SearchManagerService(context)); 361 } catch (Throwable e) { 362 Slog.e(TAG, "Failure starting Search Service", e); 363 } 364 365 try { 366 Slog.i(TAG, "DropBox Service"); 367 ServiceManager.addService(Context.DROPBOX_SERVICE, 368 new DropBoxManagerService(context, new File("/data/system/dropbox"))); 369 } catch (Throwable e) { 370 Slog.e(TAG, "Failure starting DropBoxManagerService", e); 371 } 372 373 try { 374 Slog.i(TAG, "Wallpaper Service"); 375 wallpaper = new WallpaperManagerService(context); 376 ServiceManager.addService(Context.WALLPAPER_SERVICE, wallpaper); 377 } catch (Throwable e) { 378 Slog.e(TAG, "Failure starting Wallpaper Service", e); 379 } 380 381 try { 382 Slog.i(TAG, "Audio Service"); 383 ServiceManager.addService(Context.AUDIO_SERVICE, new AudioService(context)); 384 } catch (Throwable e) { 385 Slog.e(TAG, "Failure starting Audio Service", e); 386 } 387 388 try { 389 Slog.i(TAG, "Headset Observer"); 390 // Listen for wired headset changes 391 headset = new HeadsetObserver(context); 392 } catch (Throwable e) { 393 Slog.e(TAG, "Failure starting HeadsetObserver", e); 394 } 395 396 try { 397 Slog.i(TAG, "Dock Observer"); 398 // Listen for dock station changes 399 dock = new DockObserver(context, power); 400 } catch (Throwable e) { 401 Slog.e(TAG, "Failure starting DockObserver", e); 402 } 403 404 try { 405 Slog.i(TAG, "USB Observer"); 406 // Listen for USB changes 407 usb = new UsbObserver(context); 408 } catch (Throwable e) { 409 Slog.e(TAG, "Failure starting UsbObserver", e); 410 } 411 412 try { 413 Slog.i(TAG, "UI Mode Manager Service"); 414 // Listen for UI mode changes 415 uiMode = new UiModeManagerService(context); 416 } catch (Throwable e) { 417 Slog.e(TAG, "Failure starting UiModeManagerService", e); 418 } 419 420 try { 421 Slog.i(TAG, "Backup Service"); 422 ServiceManager.addService(Context.BACKUP_SERVICE, 423 new BackupManagerService(context)); 424 } catch (Throwable e) { 425 Slog.e(TAG, "Failure starting Backup Service", e); 426 } 427 428 try { 429 Slog.i(TAG, "AppWidget Service"); 430 appWidget = new AppWidgetService(context); 431 ServiceManager.addService(Context.APPWIDGET_SERVICE, appWidget); 432 } catch (Throwable e) { 433 Slog.e(TAG, "Failure starting AppWidget Service", e); 434 } 435 436 try { 437 Slog.i(TAG, "Recognition Service"); 438 recognition = new RecognitionManagerService(context); 439 } catch (Throwable e) { 440 Slog.e(TAG, "Failure starting Recognition Service", e); 441 } 442 443 try { 444 Slog.i(TAG, "Nfc Service"); 445 NfcService nfc; 446 try { 447 nfc = new NfcService(context); 448 } catch (UnsatisfiedLinkError e) { // gross hack to detect NFC 449 nfc = null; 450 Slog.w(TAG, "No NFC support"); 451 } 452 ServiceManager.addService(Context.NFC_SERVICE, nfc); 453 } catch (Throwable e) { 454 Slog.e(TAG, "Failure starting NFC Service", e); 455 } 456 457 try { 458 Slog.i(TAG, "DiskStats Service"); 459 ServiceManager.addService("diskstats", new DiskStatsService(context)); 460 } catch (Throwable e) { 461 Slog.e(TAG, "Failure starting DiskStats Service", e); 462 } 463 464 try { 465 // need to add this service even if SamplingProfilerIntegration.isEnabled() 466 // is false, because it is this service that detects system property change and 467 // turns on SamplingProfilerIntegration. Plus, when sampling profiler doesn't work, 468 // there is little overhead for running this service. 469 Slog.i(TAG, "SamplingProfiler Service"); 470 ServiceManager.addService("samplingprofiler", 471 new SamplingProfilerService(context)); 472 } catch (Throwable e) { 473 Slog.e(TAG, "Failure starting SamplingProfiler Service", e); 474 } 475 476 try { 477 Slog.i(TAG, "NetworkTimeUpdateService"); 478 networkTimeUpdater = new NetworkTimeUpdateService(context); 479 } catch (Throwable e) { 480 Slog.e(TAG, "Failure starting NetworkTimeUpdate service"); 481 } 482 } 483 484 // make sure the ADB_ENABLED setting value matches the secure property value 485 Settings.Secure.putInt(mContentResolver, Settings.Secure.ADB_ENABLED, 486 "1".equals(SystemProperties.get("persist.service.adb.enable")) ? 1 : 0); 487 488 // register observer to listen for settings changes 489 mContentResolver.registerContentObserver(Settings.Secure.getUriFor(Settings.Secure.ADB_ENABLED), 490 false, new AdbSettingsObserver()); 491 492 // Before things start rolling, be sure we have decided whether 493 // we are in safe mode. 494 final boolean safeMode = wm.detectSafeMode(); 495 if (safeMode) { 496 try { 497 ActivityManagerNative.getDefault().enterSafeMode(); 498 // Post the safe mode state in the Zygote class 499 Zygote.systemInSafeMode = true; 500 // Disable the JIT for the system_server process 501 VMRuntime.getRuntime().disableJitCompilation(); 502 } catch (RemoteException e) { 503 } 504 } else { 505 // Enable the JIT for the system_server process 506 VMRuntime.getRuntime().startJitCompilation(); 507 } 508 509 // It is now time to start up the app processes... 510 511 if (devicePolicy != null) { 512 devicePolicy.systemReady(); 513 } 514 515 if (notification != null) { 516 notification.systemReady(); 517 } 518 519 if (statusBar != null) { 520 statusBar.systemReady(); 521 } 522 wm.systemReady(); 523 524 // Update the configuration for this context by hand, because we're going 525 // to start using it before the config change done in wm.systemReady() will 526 // propagate to it. 527 Configuration config = wm.computeNewConfiguration(); 528 DisplayMetrics metrics = new DisplayMetrics(); 529 WindowManager w = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE); 530 w.getDefaultDisplay().getMetrics(metrics); 531 context.getResources().updateConfiguration(config, metrics); 532 533 power.systemReady(); 534 try { 535 pm.systemReady(); 536 } catch (RemoteException e) { 537 } 538 539 // These are needed to propagate to the runnable below. 540 final StatusBarManagerService statusBarF = statusBar; 541 final BatteryService batteryF = battery; 542 final ConnectivityService connectivityF = connectivity; 543 final DockObserver dockF = dock; 544 final UsbObserver usbF = usb; 545 final ThrottleService throttleF = throttle; 546 final UiModeManagerService uiModeF = uiMode; 547 final AppWidgetService appWidgetF = appWidget; 548 final WallpaperManagerService wallpaperF = wallpaper; 549 final InputMethodManagerService immF = imm; 550 final RecognitionManagerService recognitionF = recognition; 551 final LocationManagerService locationF = location; 552 final CountryDetectorService countryDetectorF = countryDetector; 553 final NetworkTimeUpdateService networkTimeUpdaterF = networkTimeUpdater; 554 555 // We now tell the activity manager it is okay to run third party 556 // code. It will call back into us once it has gotten to the state 557 // where third party code can really run (but before it has actually 558 // started launching the initial applications), for us to complete our 559 // initialization. 560 ((ActivityManagerService)ActivityManagerNative.getDefault()) 561 .systemReady(new Runnable() { 562 public void run() { 563 Slog.i(TAG, "Making services ready"); 564 565 if (statusBarF != null) statusBarF.systemReady2(); 566 if (batteryF != null) batteryF.systemReady(); 567 if (connectivityF != null) connectivityF.systemReady(); 568 if (dockF != null) dockF.systemReady(); 569 if (usbF != null) usbF.systemReady(); 570 if (uiModeF != null) uiModeF.systemReady(); 571 if (recognitionF != null) recognitionF.systemReady(); 572 Watchdog.getInstance().start(); 573 574 // It is now okay to let the various system services start their 575 // third party code... 576 577 if (appWidgetF != null) appWidgetF.systemReady(safeMode); 578 if (wallpaperF != null) wallpaperF.systemReady(); 579 if (immF != null) immF.systemReady(); 580 if (locationF != null) locationF.systemReady(); 581 if (countryDetectorF != null) countryDetectorF.systemReady(); 582 if (throttleF != null) throttleF.systemReady(); 583 if (networkTimeUpdaterF != null) networkTimeUpdaterF.systemReady(); 584 } 585 }); 586 587 // For debug builds, log event loop stalls to dropbox for analysis. 588 if (StrictMode.conditionallyEnableDebugLogging()) { 589 Slog.i(TAG, "Enabled StrictMode for system server main thread."); 590 } 591 592 Looper.loop(); 593 Slog.d(TAG, "System ServerThread is exiting!"); 594 } 595} 596 597public class SystemServer { 598 private static final String TAG = "SystemServer"; 599 600 public static final int FACTORY_TEST_OFF = 0; 601 public static final int FACTORY_TEST_LOW_LEVEL = 1; 602 public static final int FACTORY_TEST_HIGH_LEVEL = 2; 603 604 static Timer timer; 605 static final long SNAPSHOT_INTERVAL = 60 * 60 * 1000; // 1hr 606 607 // The earliest supported time. We pick one day into 1970, to 608 // give any timezone code room without going into negative time. 609 private static final long EARLIEST_SUPPORTED_TIME = 86400 * 1000; 610 611 /** 612 * This method is called from Zygote to initialize the system. This will cause the native 613 * services (SurfaceFlinger, AudioFlinger, etc..) to be started. After that it will call back 614 * up into init2() to start the Android services. 615 */ 616 native public static void init1(String[] args); 617 618 public static void main(String[] args) { 619 if (System.currentTimeMillis() < EARLIEST_SUPPORTED_TIME) { 620 // If a device's clock is before 1970 (before 0), a lot of 621 // APIs crash dealing with negative numbers, notably 622 // java.io.File#setLastModified, so instead we fake it and 623 // hope that time from cell towers or NTP fixes it 624 // shortly. 625 Slog.w(TAG, "System clock is before 1970; setting to 1970."); 626 SystemClock.setCurrentTimeMillis(EARLIEST_SUPPORTED_TIME); 627 } 628 629 if (SamplingProfilerIntegration.isEnabled()) { 630 SamplingProfilerIntegration.start(); 631 timer = new Timer(); 632 timer.schedule(new TimerTask() { 633 @Override 634 public void run() { 635 SamplingProfilerIntegration.writeSnapshot("system_server", null); 636 } 637 }, SNAPSHOT_INTERVAL, SNAPSHOT_INTERVAL); 638 } 639 640 // The system server has to run all of the time, so it needs to be 641 // as efficient as possible with its memory usage. 642 VMRuntime.getRuntime().setTargetHeapUtilization(0.8f); 643 644 System.loadLibrary("android_servers"); 645 init1(args); 646 } 647 648 public static final void init2() { 649 Slog.i(TAG, "Entered the Android system server!"); 650 Thread thr = new ServerThread(); 651 thr.setName("android.server.ServerThread"); 652 thr.start(); 653 } 654} 655