19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage com.android.server; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport com.android.server.am.ActivityManagerService; 204f8ecd80296508a1dc69d3f3a23fd91e962c2784Jeff Brownimport com.android.server.power.PowerManagerService; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.app.AlarmManager; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.app.PendingIntent; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.BroadcastReceiver; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.ContentResolver; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Intent; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.IntentFilter; 29a4d8204e3068b9d8d6908d4cf3440e81967867a3Jeff Brownimport android.os.BatteryManager; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Message; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Process; 346ffce2e9a3c57634bb73f8ff133ca680f8070d5dSuchi Amalapurapuimport android.os.ServiceManager; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.SystemClock; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.SystemProperties; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.EventLog; 389bdc94b7a42a07d7dafcdf2cbadbb9c736b979d2Dan Egnorimport android.util.Log; 398a9b22056b13477f59df934928c00c58b5871c95Joe Onoratoimport android.util.Slog; 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 419bdc94b7a42a07d7dafcdf2cbadbb9c736b979d2Dan Egnorimport java.io.File; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.Calendar; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** This class calls its monitor every minute. Killing this process if they don't return **/ 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class Watchdog extends Thread { 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final String TAG = "Watchdog"; 4843a17654cf4bfe7f1ec22bd8b7b32daccdf27c09Joe Onorato static final boolean localLOGV = false || false; 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set this to true to use debug default values. 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final boolean DB = false; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53ecaa7b41ca49154ceaa9a7504eb0a86b89a96026Christopher Tate // Set this to true to have the watchdog record kernel thread stacks when it fires 54ecaa7b41ca49154ceaa9a7504eb0a86b89a96026Christopher Tate static final boolean RECORD_KERNEL_THREADS = true; 55ecaa7b41ca49154ceaa9a7504eb0a86b89a96026Christopher Tate 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int MONITOR = 2718; 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58cf2317ef13e35cf1bcd5ba27be686c7f2609ac38Mathias Agopian static final int TIME_TO_RESTART = DB ? 15*1000 : 60*1000; 596ee412d51d8b601580cfb4b7be4f676b7ec76afdChristopher Tate static final int TIME_TO_WAIT = TIME_TO_RESTART / 2; 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int MEMCHECK_DEFAULT_MIN_SCREEN_OFF = DB ? 1*60 : 5*60; // 5 minutes 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int MEMCHECK_DEFAULT_MIN_ALARM = DB ? 1*60 : 3*60; // 3 minutes 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int MEMCHECK_DEFAULT_RECHECK_INTERVAL = DB ? 1*60 : 5*60; // 5 minutes 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int REBOOT_DEFAULT_INTERVAL = DB ? 1 : 0; // never force reboot 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int REBOOT_DEFAULT_START_TIME = 3*60*60; // 3:00am 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int REBOOT_DEFAULT_WINDOW = 60*60; // within 1 hour 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final String REBOOT_ACTION = "com.android.service.Watchdog.REBOOT"; 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 71f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn static final String[] NATIVE_STACKS_OF_INTEREST = new String[] { 72f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn "/system/bin/mediaserver", 73f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn "/system/bin/sdcard", 74f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn "/system/bin/surfaceflinger" 75f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn }; 76f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static Watchdog sWatchdog; 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* This handler will be used to post message back onto the main thread */ 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler mHandler; 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<Monitor> mMonitors = new ArrayList<Monitor>(); 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContentResolver mResolver; 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project BatteryService mBattery; 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PowerManagerService mPower; 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AlarmManagerService mAlarm; 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ActivityManagerService mActivity; 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCompleted; 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mForceKillSystem; 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Monitor mCurrentMonitor; 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mPhonePid; 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Calendar mCalendar = Calendar.getInstance(); 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMinScreenOff = MEMCHECK_DEFAULT_MIN_SCREEN_OFF; 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMinAlarm = MEMCHECK_DEFAULT_MIN_ALARM; 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mNeedScheduledCheck; 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PendingIntent mCheckupIntent; 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PendingIntent mRebootIntent; 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long mBootTime; 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mRebootInterval; 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mReqRebootNoWait; // should wait for one interval before reboot? 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mReqRebootInterval = -1; // >= 0 if a reboot has been requested 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mReqRebootStartTime = -1; // >= 0 if a specific start time has been requested 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mReqRebootWindow = -1; // >= 0 if a specific window has been requested 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mReqMinScreenOff = -1; // >= 0 if a specific screen off time has been requested 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mReqMinNextAlarm = -1; // >= 0 if specific time to next alarm has been requested 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mReqRecheckInterval= -1; // >= 0 if a specific recheck interval has been requested 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used for scheduling monitor callbacks and checking memory usage. 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class HeartbeatHandler extends Handler { 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void handleMessage(Message msg) { 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (msg.what) { 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MONITOR: { 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we should force a reboot. 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int rebootInterval = mReqRebootInterval >= 0 1214de9936e85696208dfe91d1c40e3e5226e57634aJeff Sharkey ? mReqRebootInterval : REBOOT_DEFAULT_INTERVAL; 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRebootInterval != rebootInterval) { 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRebootInterval = rebootInterval; 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We have been running long enough that a reboot can 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be considered... 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkReboot(false); 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int size = mMonitors.size(); 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0 ; i < size ; i++) { 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentMonitor = mMonitors.get(i); 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentMonitor.monitor(); 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (Watchdog.this) { 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCompleted = true; 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentMonitor = null; 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } break; 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class RebootReceiver extends BroadcastReceiver { 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onReceive(Context c, Intent intent) { 1478a9b22056b13477f59df934928c00c58b5871c95Joe Onorato if (localLOGV) Slog.v(TAG, "Alarm went off, checking reboot."); 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkReboot(true); 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class RebootRequestReceiver extends BroadcastReceiver { 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onReceive(Context c, Intent intent) { 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mReqRebootNoWait = intent.getIntExtra("nowait", 0) != 0; 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mReqRebootInterval = intent.getIntExtra("interval", -1); 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mReqRebootStartTime = intent.getIntExtra("startTime", -1); 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mReqRebootWindow = intent.getIntExtra("window", -1); 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mReqMinScreenOff = intent.getIntExtra("minScreenOff", -1); 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mReqMinNextAlarm = intent.getIntExtra("minNextAlarm", -1); 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mReqRecheckInterval = intent.getIntExtra("recheckInterval", -1); 162ab5c49c7e7f5f61040650109a76f38a443fb852dDoug Zongker EventLog.writeEvent(EventLogTags.WATCHDOG_REQUESTED_REBOOT, 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mReqRebootNoWait ? 1 : 0, mReqRebootInterval, 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mReqRecheckInterval, mReqRebootStartTime, 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mReqRebootWindow, mReqMinScreenOff, mReqMinNextAlarm); 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkReboot(true); 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface Monitor { 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void monitor(); 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Watchdog getInstance() { 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sWatchdog == null) { 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sWatchdog = new Watchdog(); 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return sWatchdog; 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Watchdog() { 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super("watchdog"); 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHandler = new HeartbeatHandler(); 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void init(Context context, BatteryService battery, 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PowerManagerService power, AlarmManagerService alarm, 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ActivityManagerService activity) { 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResolver = context.getContentResolver(); 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBattery = battery; 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPower = power; 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAlarm = alarm; 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActivity = activity; 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project context.registerReceiver(new RebootReceiver(), 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project new IntentFilter(REBOOT_ACTION)); 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRebootIntent = PendingIntent.getBroadcast(context, 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, new Intent(REBOOT_ACTION), 0); 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project context.registerReceiver(new RebootRequestReceiver(), 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project new IntentFilter(Intent.ACTION_REBOOT), 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project android.Manifest.permission.REBOOT, null); 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBootTime = System.currentTimeMillis(); 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 208c27181c7f3e11170ec82807cfa416f0a906ff574Christopher Tate public void processStarted(String name, int pid) { 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (this) { 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ("com.android.phone".equals(name)) { 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPhonePid = pid; 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addMonitor(Monitor monitor) { 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (this) { 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isAlive()) { 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Monitors can't be added while the Watchdog is running"); 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMonitors.add(monitor); 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void checkReboot(boolean fromAlarm) { 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int rebootInterval = mReqRebootInterval >= 0 ? mReqRebootInterval 2274de9936e85696208dfe91d1c40e3e5226e57634aJeff Sharkey : REBOOT_DEFAULT_INTERVAL; 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRebootInterval = rebootInterval; 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (rebootInterval <= 0) { 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // No reboot interval requested. 2318a9b22056b13477f59df934928c00c58b5871c95Joe Onorato if (localLOGV) Slog.v(TAG, "No need to schedule a reboot alarm!"); 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAlarm.remove(mRebootIntent); 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long rebootStartTime = mReqRebootStartTime >= 0 ? mReqRebootStartTime 2374de9936e85696208dfe91d1c40e3e5226e57634aJeff Sharkey : REBOOT_DEFAULT_START_TIME; 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long rebootWindowMillis = (mReqRebootWindow >= 0 ? mReqRebootWindow 2394de9936e85696208dfe91d1c40e3e5226e57634aJeff Sharkey : REBOOT_DEFAULT_WINDOW) * 1000; 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long recheckInterval = (mReqRecheckInterval >= 0 ? mReqRecheckInterval 2414de9936e85696208dfe91d1c40e3e5226e57634aJeff Sharkey : MEMCHECK_DEFAULT_RECHECK_INTERVAL) * 1000; 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project retrieveBrutalityAmount(); 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long realStartTime; 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long now; 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (this) { 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project now = System.currentTimeMillis(); 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project realStartTime = computeCalendarTime(mCalendar, now, 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rebootStartTime); 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long rebootIntervalMillis = rebootInterval*24*60*60*1000; 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (DB || mReqRebootNoWait || 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (now-mBootTime) >= (rebootIntervalMillis-rebootWindowMillis)) { 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fromAlarm && rebootWindowMillis <= 0) { 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // No reboot window -- just immediately reboot. 258ab5c49c7e7f5f61040650109a76f38a443fb852dDoug Zongker EventLog.writeEvent(EventLogTags.WATCHDOG_SCHEDULED_REBOOT, now, 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (int)rebootIntervalMillis, (int)rebootStartTime*1000, 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (int)rebootWindowMillis, ""); 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rebootSystem("Checkin scheduled forced"); 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Are we within the reboot window? 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (now < realStartTime) { 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Schedule alarm for next check interval. 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project realStartTime = computeCalendarTime(mCalendar, 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project now, rebootStartTime); 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (now < (realStartTime+rebootWindowMillis)) { 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String doit = shouldWeBeBrutalLocked(now); 272ab5c49c7e7f5f61040650109a76f38a443fb852dDoug Zongker EventLog.writeEvent(EventLogTags.WATCHDOG_SCHEDULED_REBOOT, now, 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (int)rebootInterval, (int)rebootStartTime*1000, 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (int)rebootWindowMillis, doit != null ? doit : ""); 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (doit == null) { 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rebootSystem("Checked scheduled range"); 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Schedule next alarm either within the window or in the 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // next interval. 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((now+recheckInterval) >= (realStartTime+rebootWindowMillis)) { 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project realStartTime = computeCalendarTime(mCalendar, 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project now + rebootIntervalMillis, rebootStartTime); 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project realStartTime = now + recheckInterval; 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Schedule alarm for next check interval. 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project realStartTime = computeCalendarTime(mCalendar, 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project now + rebootIntervalMillis, rebootStartTime); 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2968a9b22056b13477f59df934928c00c58b5871c95Joe Onorato if (localLOGV) Slog.v(TAG, "Scheduling next reboot alarm for " 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + ((realStartTime-now)/1000/60) + "m from now"); 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAlarm.remove(mRebootIntent); 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAlarm.set(AlarmManager.RTC_WAKEUP, realStartTime, mRebootIntent); 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Perform a full reboot of the system. 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void rebootSystem(String reason) { 3068a9b22056b13477f59df934928c00c58b5871c95Joe Onorato Slog.i(TAG, "Rebooting system because: " + reason); 3076ffce2e9a3c57634bb73f8ff133ca680f8070d5dSuchi Amalapurapu PowerManagerService pms = (PowerManagerService) ServiceManager.getService("power"); 308c428aae6429c3fd5e2037c3793af399d9f6e23bfDianne Hackborn pms.reboot(false, reason, false); 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Load the current Gservices settings for when 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #shouldWeBeBrutalLocked} will allow the brutality to happen. 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Must not be called with the lock held. 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void retrieveBrutalityAmount() { 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMinScreenOff = (mReqMinScreenOff >= 0 ? mReqMinScreenOff 3184de9936e85696208dfe91d1c40e3e5226e57634aJeff Sharkey : MEMCHECK_DEFAULT_MIN_SCREEN_OFF) * 1000; 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMinAlarm = (mReqMinNextAlarm >= 0 ? mReqMinNextAlarm 3204de9936e85696208dfe91d1c40e3e5226e57634aJeff Sharkey : MEMCHECK_DEFAULT_MIN_ALARM) * 1000; 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determine whether it is a good time to kill, crash, or otherwise 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * plunder the current situation for the overall long-term benefit of 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the world. 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param curTime The current system time. 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Returns null if this is a good time, else a String with the 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * text of why it is not a good time. 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String shouldWeBeBrutalLocked(long curTime) { 333a4d8204e3068b9d8d6908d4cf3440e81967867a3Jeff Brown if (mBattery == null || !mBattery.isPowered(BatteryManager.BATTERY_PLUGGED_ANY)) { 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "battery"; 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mMinScreenOff >= 0 && (mPower == null || 3389630704ed3b265f008a8f64ec60a33cf9dcd3345Jeff Brown mPower.timeSinceScreenWasLastOn() < mMinScreenOff)) { 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "screen"; 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mMinAlarm >= 0 && (mAlarm == null || 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAlarm.timeToNextAlarm() < mMinAlarm)) { 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "alarm"; 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static long computeCalendarTime(Calendar c, long curTime, 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long secondsSinceMidnight) { 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // start with now 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project c.setTimeInMillis(curTime); 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int val = (int)secondsSinceMidnight / (60*60); 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project c.set(Calendar.HOUR_OF_DAY, val); 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project secondsSinceMidnight -= val * (60*60); 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project val = (int)secondsSinceMidnight / 60; 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project c.set(Calendar.MINUTE, val); 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project c.set(Calendar.SECOND, (int)secondsSinceMidnight - (val*60)); 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project c.set(Calendar.MILLISECOND, 0); 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long newTime = c.getTimeInMillis(); 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newTime < curTime) { 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The given time (in seconds since midnight) has already passed for today, so advance 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // by one day (due to daylight savings, etc., the delta may differ from 24 hours). 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project c.add(Calendar.DAY_OF_MONTH, 1); 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newTime = c.getTimeInMillis(); 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return newTime; 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3776ee412d51d8b601580cfb4b7be4f676b7ec76afdChristopher Tate boolean waitedHalf = false; 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (true) { 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCompleted = false; 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHandler.sendEmptyMessage(MONITOR); 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (this) { 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long timeout = TIME_TO_WAIT; 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // NOTE: We use uptimeMillis() here because we do not want to increment the time we 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // wait while asleep. If the device is asleep then the thing that we are waiting 3876ee412d51d8b601580cfb4b7be4f676b7ec76afdChristopher Tate // to timeout on is asleep as well and won't have a chance to run, causing a false 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // positive on when to kill things. 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long start = SystemClock.uptimeMillis(); 3909bdc94b7a42a07d7dafcdf2cbadbb9c736b979d2Dan Egnor while (timeout > 0 && !mForceKillSystem) { 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 3929bdc94b7a42a07d7dafcdf2cbadbb9c736b979d2Dan Egnor wait(timeout); // notifyAll() is called when mForceKillSystem is set 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (InterruptedException e) { 3949bdc94b7a42a07d7dafcdf2cbadbb9c736b979d2Dan Egnor Log.wtf(TAG, e); 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project timeout = TIME_TO_WAIT - (SystemClock.uptimeMillis() - start); 3979bdc94b7a42a07d7dafcdf2cbadbb9c736b979d2Dan Egnor } 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCompleted && !mForceKillSystem) { 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The monitors have returned. 4016ee412d51d8b601580cfb4b7be4f676b7ec76afdChristopher Tate waitedHalf = false; 4026ee412d51d8b601580cfb4b7be4f676b7ec76afdChristopher Tate continue; 4036ee412d51d8b601580cfb4b7be4f676b7ec76afdChristopher Tate } 4046ee412d51d8b601580cfb4b7be4f676b7ec76afdChristopher Tate 4056ee412d51d8b601580cfb4b7be4f676b7ec76afdChristopher Tate if (!waitedHalf) { 4066ee412d51d8b601580cfb4b7be4f676b7ec76afdChristopher Tate // We've waited half the deadlock-detection interval. Pull a stack 4076ee412d51d8b601580cfb4b7be4f676b7ec76afdChristopher Tate // trace and wait another half. 4086b1afebdaca6c27d49a243c4283e5e2e4924de8cDianne Hackborn ArrayList<Integer> pids = new ArrayList<Integer>(); 4096ee412d51d8b601580cfb4b7be4f676b7ec76afdChristopher Tate pids.add(Process.myPid()); 410f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn ActivityManagerService.dumpStackTraces(true, pids, null, null, 411f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn NATIVE_STACKS_OF_INTEREST); 4126ee412d51d8b601580cfb4b7be4f676b7ec76afdChristopher Tate waitedHalf = true; 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we got here, that means that the system is most likely hung. 418784827b27cf4cd82bf074b571e63cb5e660c54afJean-Baptiste Queru // First collect stack traces from all threads of the system process. 419784827b27cf4cd82bf074b571e63cb5e660c54afJean-Baptiste Queru // Then kill this process so that the system will restart. 4209bdc94b7a42a07d7dafcdf2cbadbb9c736b979d2Dan Egnor 4219765c72eeaba9ed0f704dd992e7a954f38f20abdBrad Fitzpatrick final String name = (mCurrentMonitor != null) ? 4226b1afebdaca6c27d49a243c4283e5e2e4924de8cDianne Hackborn mCurrentMonitor.getClass().getName() : "null"; 423ab5c49c7e7f5f61040650109a76f38a443fb852dDoug Zongker EventLog.writeEvent(EventLogTags.WATCHDOG, name); 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4256b1afebdaca6c27d49a243c4283e5e2e4924de8cDianne Hackborn ArrayList<Integer> pids = new ArrayList<Integer>(); 4269bdc94b7a42a07d7dafcdf2cbadbb9c736b979d2Dan Egnor pids.add(Process.myPid()); 4274bded0744a07152c1e7ae4cb8110c74ec89a67b1Dan Egnor if (mPhonePid > 0) pids.add(mPhonePid); 4286ee412d51d8b601580cfb4b7be4f676b7ec76afdChristopher Tate // Pass !waitedHalf so that just in case we somehow wind up here without having 4296ee412d51d8b601580cfb4b7be4f676b7ec76afdChristopher Tate // dumped the halfway stacks, we properly re-initialize the trace file. 4309765c72eeaba9ed0f704dd992e7a954f38f20abdBrad Fitzpatrick final File stack = ActivityManagerService.dumpStackTraces( 431f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn !waitedHalf, pids, null, null, NATIVE_STACKS_OF_INTEREST); 4324bded0744a07152c1e7ae4cb8110c74ec89a67b1Dan Egnor 4334bded0744a07152c1e7ae4cb8110c74ec89a67b1Dan Egnor // Give some extra time to make sure the stack traces get written. 4344bded0744a07152c1e7ae4cb8110c74ec89a67b1Dan Egnor // The system's been hanging for a minute, another second or two won't hurt much. 4354bded0744a07152c1e7ae4cb8110c74ec89a67b1Dan Egnor SystemClock.sleep(2000); 4364bded0744a07152c1e7ae4cb8110c74ec89a67b1Dan Egnor 437ecaa7b41ca49154ceaa9a7504eb0a86b89a96026Christopher Tate // Pull our own kernel thread stacks as well if we're configured for that 438ecaa7b41ca49154ceaa9a7504eb0a86b89a96026Christopher Tate if (RECORD_KERNEL_THREADS) { 439ecaa7b41ca49154ceaa9a7504eb0a86b89a96026Christopher Tate dumpKernelStackTraces(); 440ecaa7b41ca49154ceaa9a7504eb0a86b89a96026Christopher Tate } 441ecaa7b41ca49154ceaa9a7504eb0a86b89a96026Christopher Tate 4429765c72eeaba9ed0f704dd992e7a954f38f20abdBrad Fitzpatrick // Try to add the error to the dropbox, but assuming that the ActivityManager 4439765c72eeaba9ed0f704dd992e7a954f38f20abdBrad Fitzpatrick // itself may be deadlocked. (which has happened, causing this statement to 4449765c72eeaba9ed0f704dd992e7a954f38f20abdBrad Fitzpatrick // deadlock and the watchdog as a whole to be ineffective) 4459765c72eeaba9ed0f704dd992e7a954f38f20abdBrad Fitzpatrick Thread dropboxThread = new Thread("watchdogWriteToDropbox") { 4469765c72eeaba9ed0f704dd992e7a954f38f20abdBrad Fitzpatrick public void run() { 4479765c72eeaba9ed0f704dd992e7a954f38f20abdBrad Fitzpatrick mActivity.addErrorToDropBox( 448a353d2654a98b292469d2559cb4424b13d779924Jeff Sharkey "watchdog", null, "system_server", null, null, 449a353d2654a98b292469d2559cb4424b13d779924Jeff Sharkey name, null, stack, null); 4509765c72eeaba9ed0f704dd992e7a954f38f20abdBrad Fitzpatrick } 4519765c72eeaba9ed0f704dd992e7a954f38f20abdBrad Fitzpatrick }; 4529765c72eeaba9ed0f704dd992e7a954f38f20abdBrad Fitzpatrick dropboxThread.start(); 4539765c72eeaba9ed0f704dd992e7a954f38f20abdBrad Fitzpatrick try { 4549765c72eeaba9ed0f704dd992e7a954f38f20abdBrad Fitzpatrick dropboxThread.join(2000); // wait up to 2 seconds for it to return. 4559765c72eeaba9ed0f704dd992e7a954f38f20abdBrad Fitzpatrick } catch (InterruptedException ignored) {} 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 457784827b27cf4cd82bf074b571e63cb5e660c54afJean-Baptiste Queru // Only kill the process if the debugger is not attached. 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!Debug.isDebuggerConnected()) { 4599bdc94b7a42a07d7dafcdf2cbadbb9c736b979d2Dan Egnor Slog.w(TAG, "*** WATCHDOG KILLING SYSTEM PROCESS: " + name); 460784827b27cf4cd82bf074b571e63cb5e660c54afJean-Baptiste Queru Process.killProcess(Process.myPid()); 461784827b27cf4cd82bf074b571e63cb5e660c54afJean-Baptiste Queru System.exit(10); 4629bdc94b7a42a07d7dafcdf2cbadbb9c736b979d2Dan Egnor } else { 4639bdc94b7a42a07d7dafcdf2cbadbb9c736b979d2Dan Egnor Slog.w(TAG, "Debugger connected: Watchdog is *not* killing the system process"); 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4656ee412d51d8b601580cfb4b7be4f676b7ec76afdChristopher Tate 4666ee412d51d8b601580cfb4b7be4f676b7ec76afdChristopher Tate waitedHalf = false; 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 469ecaa7b41ca49154ceaa9a7504eb0a86b89a96026Christopher Tate 470ecaa7b41ca49154ceaa9a7504eb0a86b89a96026Christopher Tate private File dumpKernelStackTraces() { 471ecaa7b41ca49154ceaa9a7504eb0a86b89a96026Christopher Tate String tracesPath = SystemProperties.get("dalvik.vm.stack-trace-file", null); 472ecaa7b41ca49154ceaa9a7504eb0a86b89a96026Christopher Tate if (tracesPath == null || tracesPath.length() == 0) { 473ecaa7b41ca49154ceaa9a7504eb0a86b89a96026Christopher Tate return null; 474ecaa7b41ca49154ceaa9a7504eb0a86b89a96026Christopher Tate } 475ecaa7b41ca49154ceaa9a7504eb0a86b89a96026Christopher Tate 476ecaa7b41ca49154ceaa9a7504eb0a86b89a96026Christopher Tate native_dumpKernelStacks(tracesPath); 477ecaa7b41ca49154ceaa9a7504eb0a86b89a96026Christopher Tate return new File(tracesPath); 478ecaa7b41ca49154ceaa9a7504eb0a86b89a96026Christopher Tate } 479ecaa7b41ca49154ceaa9a7504eb0a86b89a96026Christopher Tate 480ecaa7b41ca49154ceaa9a7504eb0a86b89a96026Christopher Tate private native void native_dumpKernelStacks(String tracesPath); 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 482