SystemServer.java revision eaddb894865a804279659b4aad6364a34ab50beb
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 android.accounts.AccountManagerService; 20import android.app.ActivityManagerNative; 21import android.bluetooth.BluetoothAdapter; 22import android.content.ComponentName; 23import android.content.ContentResolver; 24import android.content.ContentService; 25import android.content.Context; 26import android.content.Intent; 27import android.content.pm.IPackageManager; 28import android.content.res.Configuration; 29import android.media.AudioService; 30import android.os.Looper; 31import android.os.RemoteException; 32import android.os.ServiceManager; 33import android.os.StrictMode; 34import android.os.SystemClock; 35import android.os.SystemProperties; 36import android.provider.Settings; 37import android.server.BluetoothA2dpService; 38import android.server.BluetoothService; 39import android.server.search.SearchManagerService; 40import android.util.DisplayMetrics; 41import android.util.EventLog; 42import android.util.Slog; 43import android.view.WindowManager; 44 45import com.android.internal.app.ShutdownThread; 46import com.android.internal.os.BinderInternal; 47import com.android.internal.os.SamplingProfilerIntegration; 48import com.android.server.accessibility.AccessibilityManagerService; 49import com.android.server.am.ActivityManagerService; 50import com.android.server.net.NetworkPolicyManagerService; 51import com.android.server.net.NetworkStatsService; 52import com.android.server.pm.PackageManagerService; 53import com.android.server.usb.UsbService; 54import com.android.server.wm.WindowManagerService; 55 56import dalvik.system.VMRuntime; 57import dalvik.system.Zygote; 58 59import java.io.File; 60import java.util.Timer; 61import java.util.TimerTask; 62 63class ServerThread extends Thread { 64 private static final String TAG = "SystemServer"; 65 66 ContentResolver mContentResolver; 67 68 @Override 69 public void run() { 70 EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_SYSTEM_RUN, 71 SystemClock.uptimeMillis()); 72 73 Looper.prepare(); 74 75 android.os.Process.setThreadPriority( 76 android.os.Process.THREAD_PRIORITY_FOREGROUND); 77 78 BinderInternal.disableBackgroundScheduling(true); 79 android.os.Process.setCanSelfBackground(false); 80 81 // Check whether we failed to shut down last time we tried. 82 { 83 final String shutdownAction = SystemProperties.get( 84 ShutdownThread.SHUTDOWN_ACTION_PROPERTY, ""); 85 if (shutdownAction != null && shutdownAction.length() > 0) { 86 boolean reboot = (shutdownAction.charAt(0) == '1'); 87 88 final String reason; 89 if (shutdownAction.length() > 1) { 90 reason = shutdownAction.substring(1, shutdownAction.length()); 91 } else { 92 reason = null; 93 } 94 95 ShutdownThread.rebootOrShutdown(reboot, reason); 96 } 97 } 98 99 String factoryTestStr = SystemProperties.get("ro.factorytest"); 100 int factoryTest = "".equals(factoryTestStr) ? SystemServer.FACTORY_TEST_OFF 101 : Integer.parseInt(factoryTestStr); 102 103 LightsService lights = null; 104 PowerManagerService power = null; 105 BatteryService battery = null; 106 AlarmManagerService alarm = null; 107 NetworkManagementService networkManagement = null; 108 NetworkStatsService networkStats = null; 109 NetworkPolicyManagerService networkPolicy = null; 110 ConnectivityService connectivity = null; 111 IPackageManager pm = null; 112 Context context = null; 113 WindowManagerService wm = null; 114 BluetoothService bluetooth = null; 115 BluetoothA2dpService bluetoothA2dp = null; 116 WiredAccessoryObserver wiredAccessory = null; 117 DockObserver dock = null; 118 UsbService usb = null; 119 UiModeManagerService uiMode = null; 120 RecognitionManagerService recognition = null; 121 ThrottleService throttle = null; 122 NetworkTimeUpdateService networkTimeUpdater = null; 123 124 // Critical services... 125 try { 126 Slog.i(TAG, "Entropy Service"); 127 ServiceManager.addService("entropy", new EntropyService()); 128 129 Slog.i(TAG, "Power Manager"); 130 power = new PowerManagerService(); 131 ServiceManager.addService(Context.POWER_SERVICE, power); 132 133 Slog.i(TAG, "Activity Manager"); 134 context = ActivityManagerService.main(factoryTest); 135 136 Slog.i(TAG, "Telephony Registry"); 137 ServiceManager.addService("telephony.registry", new TelephonyRegistry(context)); 138 139 AttributeCache.init(context); 140 141 Slog.i(TAG, "Package Manager"); 142 pm = PackageManagerService.main(context, 143 factoryTest != SystemServer.FACTORY_TEST_OFF); 144 145 ActivityManagerService.setSystemProcess(); 146 147 mContentResolver = context.getContentResolver(); 148 149 // The AccountManager must come before the ContentService 150 try { 151 Slog.i(TAG, "Account Manager"); 152 ServiceManager.addService(Context.ACCOUNT_SERVICE, 153 new AccountManagerService(context)); 154 } catch (Throwable e) { 155 Slog.e(TAG, "Failure starting Account Manager", e); 156 } 157 158 Slog.i(TAG, "Content Manager"); 159 ContentService.main(context, 160 factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL); 161 162 Slog.i(TAG, "System Content Providers"); 163 ActivityManagerService.installSystemProviders(); 164 165 Slog.i(TAG, "Lights Service"); 166 lights = new LightsService(context); 167 168 Slog.i(TAG, "Battery Service"); 169 battery = new BatteryService(context, lights); 170 ServiceManager.addService("battery", battery); 171 172 Slog.i(TAG, "Vibrator Service"); 173 ServiceManager.addService("vibrator", new VibratorService(context)); 174 175 // only initialize the power service after we have started the 176 // lights service, content providers and the battery service. 177 power.init(context, lights, ActivityManagerService.getDefault(), battery); 178 179 Slog.i(TAG, "Alarm Manager"); 180 alarm = new AlarmManagerService(context); 181 ServiceManager.addService(Context.ALARM_SERVICE, alarm); 182 183 Slog.i(TAG, "Init Watchdog"); 184 Watchdog.getInstance().init(context, battery, power, alarm, 185 ActivityManagerService.self()); 186 187 Slog.i(TAG, "Window Manager"); 188 wm = WindowManagerService.main(context, power, 189 factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL); 190 ServiceManager.addService(Context.WINDOW_SERVICE, wm); 191 192 ((ActivityManagerService)ServiceManager.getService("activity")) 193 .setWindowManager(wm); 194 195 // Skip Bluetooth if we have an emulator kernel 196 // TODO: Use a more reliable check to see if this product should 197 // support Bluetooth - see bug 988521 198 if (SystemProperties.get("ro.kernel.qemu").equals("1")) { 199 Slog.i(TAG, "No Bluetooh Service (emulator)"); 200 } else if (factoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL) { 201 Slog.i(TAG, "No Bluetooth Service (factory test)"); 202 } else { 203 Slog.i(TAG, "Bluetooth Service"); 204 bluetooth = new BluetoothService(context); 205 ServiceManager.addService(BluetoothAdapter.BLUETOOTH_SERVICE, bluetooth); 206 bluetooth.initAfterRegistration(); 207 bluetoothA2dp = new BluetoothA2dpService(context, bluetooth); 208 ServiceManager.addService(BluetoothA2dpService.BLUETOOTH_A2DP_SERVICE, 209 bluetoothA2dp); 210 bluetooth.initAfterA2dpRegistration(); 211 212 int bluetoothOn = Settings.Secure.getInt(mContentResolver, 213 Settings.Secure.BLUETOOTH_ON, 0); 214 if (bluetoothOn > 0) { 215 bluetooth.enable(); 216 } 217 } 218 219 } catch (RuntimeException e) { 220 Slog.e("System", "Failure starting core service", e); 221 } 222 223 DevicePolicyManagerService devicePolicy = null; 224 StatusBarManagerService statusBar = null; 225 InputMethodManagerService imm = null; 226 AppWidgetService appWidget = null; 227 NotificationManagerService notification = null; 228 WallpaperManagerService wallpaper = null; 229 LocationManagerService location = null; 230 CountryDetectorService countryDetector = null; 231 TextServiceManagerService tsms = null; 232 233 if (factoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL) { 234 try { 235 Slog.i(TAG, "Device Policy"); 236 devicePolicy = new DevicePolicyManagerService(context); 237 ServiceManager.addService(Context.DEVICE_POLICY_SERVICE, devicePolicy); 238 } catch (Throwable e) { 239 Slog.e(TAG, "Failure starting DevicePolicyService", e); 240 } 241 242 try { 243 Slog.i(TAG, "Status Bar"); 244 statusBar = new StatusBarManagerService(context, wm); 245 ServiceManager.addService(Context.STATUS_BAR_SERVICE, statusBar); 246 } catch (Throwable e) { 247 Slog.e(TAG, "Failure starting StatusBarManagerService", e); 248 } 249 250 try { 251 Slog.i(TAG, "Clipboard Service"); 252 ServiceManager.addService(Context.CLIPBOARD_SERVICE, 253 new ClipboardService(context)); 254 } catch (Throwable e) { 255 Slog.e(TAG, "Failure starting Clipboard Service", e); 256 } 257 258 try { 259 Slog.i(TAG, "Input Method Service"); 260 imm = new InputMethodManagerService(context, statusBar); 261 ServiceManager.addService(Context.INPUT_METHOD_SERVICE, imm); 262 } catch (Throwable e) { 263 Slog.e(TAG, "Failure starting Input Manager Service", e); 264 } 265 266 try { 267 Slog.i(TAG, "NetworkManagement Service"); 268 networkManagement = NetworkManagementService.create(context); 269 ServiceManager.addService(Context.NETWORKMANAGEMENT_SERVICE, networkManagement); 270 } catch (Throwable e) { 271 Slog.e(TAG, "Failure starting NetworkManagement Service", e); 272 } 273 274 try { 275 Slog.i(TAG, "Text Service Manager Service"); 276 tsms = new TextServiceManagerService(context); 277 ServiceManager.addService(Context.TEXT_SERVICE_MANAGER_SERVICE, tsms); 278 } catch (Throwable e) { 279 Slog.e(TAG, "Failure starting Text Service Manager Service", e); 280 } 281 282 try { 283 Slog.i(TAG, "NetworkStats Service"); 284 networkStats = new NetworkStatsService(context, networkManagement, alarm); 285 ServiceManager.addService(Context.NETWORK_STATS_SERVICE, networkStats); 286 } catch (Throwable e) { 287 Slog.e(TAG, "Failure starting NetworkStats Service", e); 288 } 289 290 try { 291 Slog.i(TAG, "NetworkPolicy Service"); 292 networkPolicy = new NetworkPolicyManagerService( 293 context, ActivityManagerService.self(), power, networkStats); 294 ServiceManager.addService(Context.NETWORK_POLICY_SERVICE, networkPolicy); 295 } catch (Throwable e) { 296 Slog.e(TAG, "Failure starting NetworkPolicy Service", e); 297 } 298 299 try { 300 Slog.i(TAG, "Connectivity Service"); 301 connectivity = new ConnectivityService(context, networkManagement, networkPolicy); 302 ServiceManager.addService(Context.CONNECTIVITY_SERVICE, connectivity); 303 networkStats.bindConnectivityManager(connectivity); 304 networkPolicy.bindConnectivityManager(connectivity); 305 } catch (Throwable e) { 306 Slog.e(TAG, "Failure starting Connectivity Service", e); 307 } 308 309 try { 310 Slog.i(TAG, "Throttle Service"); 311 throttle = new ThrottleService(context); 312 ServiceManager.addService( 313 Context.THROTTLE_SERVICE, throttle); 314 } catch (Throwable e) { 315 Slog.e(TAG, "Failure starting ThrottleService", e); 316 } 317 318 try { 319 Slog.i(TAG, "Accessibility Manager"); 320 ServiceManager.addService(Context.ACCESSIBILITY_SERVICE, 321 new AccessibilityManagerService(context)); 322 } catch (Throwable e) { 323 Slog.e(TAG, "Failure starting Accessibility Manager", e); 324 } 325 326 try { 327 /* 328 * NotificationManagerService is dependant on MountService, 329 * (for media / usb notifications) so we must start MountService first. 330 */ 331 Slog.i(TAG, "Mount Service"); 332 ServiceManager.addService("mount", new MountService(context)); 333 } catch (Throwable e) { 334 Slog.e(TAG, "Failure starting Mount Service", e); 335 } 336 337 try { 338 Slog.i(TAG, "Notification Manager"); 339 notification = new NotificationManagerService(context, statusBar, lights); 340 ServiceManager.addService(Context.NOTIFICATION_SERVICE, notification); 341 networkPolicy.bindNotificationManager(notification); 342 } catch (Throwable e) { 343 Slog.e(TAG, "Failure starting Notification Manager", e); 344 } 345 346 try { 347 Slog.i(TAG, "Device Storage Monitor"); 348 ServiceManager.addService(DeviceStorageMonitorService.SERVICE, 349 new DeviceStorageMonitorService(context)); 350 } catch (Throwable e) { 351 Slog.e(TAG, "Failure starting DeviceStorageMonitor service", e); 352 } 353 354 try { 355 Slog.i(TAG, "Location Manager"); 356 location = new LocationManagerService(context); 357 ServiceManager.addService(Context.LOCATION_SERVICE, location); 358 } catch (Throwable e) { 359 Slog.e(TAG, "Failure starting Location Manager", e); 360 } 361 362 try { 363 Slog.i(TAG, "Country Detector"); 364 countryDetector = new CountryDetectorService(context); 365 ServiceManager.addService(Context.COUNTRY_DETECTOR, countryDetector); 366 } catch (Throwable e) { 367 Slog.e(TAG, "Failure starting Country Detector", e); 368 } 369 370 try { 371 Slog.i(TAG, "Search Service"); 372 ServiceManager.addService(Context.SEARCH_SERVICE, 373 new SearchManagerService(context)); 374 } catch (Throwable e) { 375 Slog.e(TAG, "Failure starting Search Service", e); 376 } 377 378 try { 379 Slog.i(TAG, "DropBox Service"); 380 ServiceManager.addService(Context.DROPBOX_SERVICE, 381 new DropBoxManagerService(context, new File("/data/system/dropbox"))); 382 } catch (Throwable e) { 383 Slog.e(TAG, "Failure starting DropBoxManagerService", e); 384 } 385 386 try { 387 Slog.i(TAG, "Wallpaper Service"); 388 wallpaper = new WallpaperManagerService(context); 389 ServiceManager.addService(Context.WALLPAPER_SERVICE, wallpaper); 390 } catch (Throwable e) { 391 Slog.e(TAG, "Failure starting Wallpaper Service", e); 392 } 393 394 try { 395 Slog.i(TAG, "Audio Service"); 396 ServiceManager.addService(Context.AUDIO_SERVICE, new AudioService(context)); 397 } catch (Throwable e) { 398 Slog.e(TAG, "Failure starting Audio Service", e); 399 } 400 401 try { 402 Slog.i(TAG, "Dock Observer"); 403 // Listen for dock station changes 404 dock = new DockObserver(context, power); 405 } catch (Throwable e) { 406 Slog.e(TAG, "Failure starting DockObserver", e); 407 } 408 409 try { 410 Slog.i(TAG, "Wired Accessory Observer"); 411 // Listen for wired headset changes 412 wiredAccessory = new WiredAccessoryObserver(context); 413 } catch (Throwable e) { 414 Slog.e(TAG, "Failure starting WiredAccessoryObserver", e); 415 } 416 417 try { 418 Slog.i(TAG, "USB Service"); 419 // Manage USB host and device support 420 usb = new UsbService(context); 421 ServiceManager.addService(Context.USB_SERVICE, usb); 422 } catch (Throwable e) { 423 Slog.e(TAG, "Failure starting UsbService", e); 424 } 425 426 try { 427 Slog.i(TAG, "UI Mode Manager Service"); 428 // Listen for UI mode changes 429 uiMode = new UiModeManagerService(context); 430 } catch (Throwable e) { 431 Slog.e(TAG, "Failure starting UiModeManagerService", e); 432 } 433 434 try { 435 Slog.i(TAG, "Backup Service"); 436 ServiceManager.addService(Context.BACKUP_SERVICE, 437 new BackupManagerService(context)); 438 } catch (Throwable e) { 439 Slog.e(TAG, "Failure starting Backup Service", e); 440 } 441 442 try { 443 Slog.i(TAG, "AppWidget Service"); 444 appWidget = new AppWidgetService(context); 445 ServiceManager.addService(Context.APPWIDGET_SERVICE, appWidget); 446 } catch (Throwable e) { 447 Slog.e(TAG, "Failure starting AppWidget Service", e); 448 } 449 450 try { 451 Slog.i(TAG, "Recognition Service"); 452 recognition = new RecognitionManagerService(context); 453 } catch (Throwable e) { 454 Slog.e(TAG, "Failure starting Recognition 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 // Before things start rolling, be sure we have decided whether 485 // we are in safe mode. 486 final boolean safeMode = wm.detectSafeMode(); 487 if (safeMode) { 488 ActivityManagerService.self().enterSafeMode(); 489 // Post the safe mode state in the Zygote class 490 Zygote.systemInSafeMode = true; 491 // Disable the JIT for the system_server process 492 VMRuntime.getRuntime().disableJitCompilation(); 493 } else { 494 // Enable the JIT for the system_server process 495 VMRuntime.getRuntime().startJitCompilation(); 496 } 497 498 // It is now time to start up the app processes... 499 500 if (devicePolicy != null) { 501 devicePolicy.systemReady(); 502 } 503 504 if (notification != null) { 505 notification.systemReady(); 506 } 507 508 wm.systemReady(); 509 510 if (safeMode) { 511 ActivityManagerService.self().showSafeModeOverlay(); 512 } 513 514 // Update the configuration for this context by hand, because we're going 515 // to start using it before the config change done in wm.systemReady() will 516 // propagate to it. 517 Configuration config = wm.computeNewConfiguration(); 518 DisplayMetrics metrics = new DisplayMetrics(); 519 WindowManager w = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE); 520 w.getDefaultDisplay().getMetrics(metrics); 521 context.getResources().updateConfiguration(config, metrics); 522 523 power.systemReady(); 524 try { 525 pm.systemReady(); 526 } catch (RemoteException e) { 527 } 528 529 // These are needed to propagate to the runnable below. 530 final Context contextF = context; 531 final BatteryService batteryF = battery; 532 final NetworkStatsService networkStatsF = networkStats; 533 final NetworkPolicyManagerService networkPolicyF = networkPolicy; 534 final ConnectivityService connectivityF = connectivity; 535 final DockObserver dockF = dock; 536 final UsbService usbF = usb; 537 final ThrottleService throttleF = throttle; 538 final UiModeManagerService uiModeF = uiMode; 539 final AppWidgetService appWidgetF = appWidget; 540 final WallpaperManagerService wallpaperF = wallpaper; 541 final InputMethodManagerService immF = imm; 542 final RecognitionManagerService recognitionF = recognition; 543 final LocationManagerService locationF = location; 544 final CountryDetectorService countryDetectorF = countryDetector; 545 final NetworkTimeUpdateService networkTimeUpdaterF = networkTimeUpdater; 546 final TextServiceManagerService textServiceManagerServiceF = tsms; 547 548 // We now tell the activity manager it is okay to run third party 549 // code. It will call back into us once it has gotten to the state 550 // where third party code can really run (but before it has actually 551 // started launching the initial applications), for us to complete our 552 // initialization. 553 ((ActivityManagerService)ActivityManagerNative.getDefault()) 554 .systemReady(new Runnable() { 555 public void run() { 556 Slog.i(TAG, "Making services ready"); 557 558 startSystemUi(contextF); 559 if (batteryF != null) batteryF.systemReady(); 560 if (networkStatsF != null) networkStatsF.systemReady(); 561 if (networkPolicyF != null) networkPolicyF.systemReady(); 562 if (connectivityF != null) connectivityF.systemReady(); 563 if (dockF != null) dockF.systemReady(); 564 if (usbF != null) usbF.systemReady(); 565 if (uiModeF != null) uiModeF.systemReady(); 566 if (recognitionF != null) recognitionF.systemReady(); 567 Watchdog.getInstance().start(); 568 569 // It is now okay to let the various system services start their 570 // third party code... 571 572 if (appWidgetF != null) appWidgetF.systemReady(safeMode); 573 if (wallpaperF != null) wallpaperF.systemReady(); 574 if (immF != null) immF.systemReady(); 575 if (locationF != null) locationF.systemReady(); 576 if (countryDetectorF != null) countryDetectorF.systemReady(); 577 if (throttleF != null) throttleF.systemReady(); 578 if (networkTimeUpdaterF != null) networkTimeUpdaterF.systemReady(); 579 if (textServiceManagerServiceF != null) textServiceManagerServiceF.systemReady(); 580 } 581 }); 582 583 // For debug builds, log event loop stalls to dropbox for analysis. 584 if (StrictMode.conditionallyEnableDebugLogging()) { 585 Slog.i(TAG, "Enabled StrictMode for system server main thread."); 586 } 587 588 Looper.loop(); 589 Slog.d(TAG, "System ServerThread is exiting!"); 590 } 591 592 static final void startSystemUi(Context context) { 593 Intent intent = new Intent(); 594 intent.setComponent(new ComponentName("com.android.systemui", 595 "com.android.systemui.SystemUIService")); 596 Slog.d(TAG, "Starting service: " + intent); 597 context.startService(intent); 598 } 599} 600 601public class SystemServer { 602 private static final String TAG = "SystemServer"; 603 604 public static final int FACTORY_TEST_OFF = 0; 605 public static final int FACTORY_TEST_LOW_LEVEL = 1; 606 public static final int FACTORY_TEST_HIGH_LEVEL = 2; 607 608 static Timer timer; 609 static final long SNAPSHOT_INTERVAL = 60 * 60 * 1000; // 1hr 610 611 // The earliest supported time. We pick one day into 1970, to 612 // give any timezone code room without going into negative time. 613 private static final long EARLIEST_SUPPORTED_TIME = 86400 * 1000; 614 615 /** 616 * This method is called from Zygote to initialize the system. This will cause the native 617 * services (SurfaceFlinger, AudioFlinger, etc..) to be started. After that it will call back 618 * up into init2() to start the Android services. 619 */ 620 native public static void init1(String[] args); 621 622 public static void main(String[] args) { 623 if (System.currentTimeMillis() < EARLIEST_SUPPORTED_TIME) { 624 // If a device's clock is before 1970 (before 0), a lot of 625 // APIs crash dealing with negative numbers, notably 626 // java.io.File#setLastModified, so instead we fake it and 627 // hope that time from cell towers or NTP fixes it 628 // shortly. 629 Slog.w(TAG, "System clock is before 1970; setting to 1970."); 630 SystemClock.setCurrentTimeMillis(EARLIEST_SUPPORTED_TIME); 631 } 632 633 if (SamplingProfilerIntegration.isEnabled()) { 634 SamplingProfilerIntegration.start(); 635 timer = new Timer(); 636 timer.schedule(new TimerTask() { 637 @Override 638 public void run() { 639 SamplingProfilerIntegration.writeSnapshot("system_server", null); 640 } 641 }, SNAPSHOT_INTERVAL, SNAPSHOT_INTERVAL); 642 } 643 644 // Mmmmmm... more memory! 645 dalvik.system.VMRuntime.getRuntime().clearGrowthLimit(); 646 647 // The system server has to run all of the time, so it needs to be 648 // as efficient as possible with its memory usage. 649 VMRuntime.getRuntime().setTargetHeapUtilization(0.8f); 650 651 System.loadLibrary("android_servers"); 652 init1(args); 653 } 654 655 public static final void init2() { 656 Slog.i(TAG, "Entered the Android system server!"); 657 Thread thr = new ServerThread(); 658 thr.setName("android.server.ServerThread"); 659 thr.start(); 660 } 661} 662