android内核剖析学习笔记：AMS（ActivityManagerService）内部原理和工作机制
（1）统一调度各应用程序的Activity
（2）内存管理
（3）进程管理
二、启动一个Activity的方式有以下几种：
（1）在应用程序中调用startActivity启动指定的Activity
（2）在Home程序中单击一个应用图标，启动新的Activity
（3）按“Back”键，结束当前Activity，返回到上一个Activity
（4）长按“Home”键，显示出当前正在运行的程序列表，从中选择一个启动
这四种启动方式的主体处理流程都会按照第一种启动方式运行，后面三种方式只是在前端消息处理上各有不同。
三、进程数据类ProcessRecord
该类的源代码在~\frameworks\base\services\java\com\android\server\am路径下。
一般情况下，一个APK文件运行时会对应一个进程，ProcessRecord用来记录一个进程中的相关信息，主要包含的变量有：
（1）进程文件信息：与该进程对应的APK文件的内部信息，如
final ApplicationInfo info; // all about the first app in the process
final String processName; // name of the process
final ArrayMap
= new ArrayMap
（2）进程的内存状态信息：用于Linux系统的out of memory(OOM)情况的处理，当发生内存紧张时，Linux系统会根据进程的内存状态信息杀掉低优先级的进程，包括的变量有
int maxAdj; // Maximum OOM adjustment for this process
int curRawAdj; // Current OOM unlimited adjustment for this process
int setRawAdj; // Last set OOM unlimited adjustment for this process
int curAdj; // Current OOM adjustment for this process
int setAdj; // Last set OOM adjustment for this process
变量中Adj的含义是调整值（adjustment）
（3）进程中包含的Activity、Provider、Service等，如下
final ArrayList
final ArraySet
final ArraySet
final ArraySet
final ArraySet
final ArrayMap
final ArrayList
四、ActivityRecord数据类（Android 2.3以前版本叫HistoryRecord类）
ActivityManagerService使用ActivityRecord数据类来保存每个Activity的信息，ActivityRecord类基于IApplicationToken.Stub类，也是一个Binder,所以可以被IPC调用。
主要包含的变量有：
（1）环境信息：Activity的工作环境，比如进程名称、文件路径、数据路径、图标、主题等，这些信息一般是固定的，比如以下变量
final String packageName; // the package implementing intent's component
final String processName; // process where this component wants to run
final String baseDir; // where activity source (resources etc) located
final String resDir; // where public activity source (public resources etc) located
final String dataDir; // where activity data should go
int theme; // resource identifier of activity's theme.
int realTheme; // actual theme resource we will use, never 0.
（2）运行状态数据信息：如idle、stop、finishing等，一般为boolean类型，如下
boolean haveState; // have we gotten the last activity state?
boolean stopped; // is activity pause finished?
boolean delayedResume; // not yet resumed because of stopped app switches?
boolean finishing; // activity in pending finish list?
boolean configDestroy; // need to destroy due to config change?
五、TaskRecord类
ActivityManagerService中使用任务的概念来确保Activity启动和退出的顺序。
TaskRecord中的几个重要变量如下：
final int taskId; // 每个任务的标识.
Intent intent; // 创建该任务时对应的intent
int numActivities; //该任务中的Activity数目
final ArrayList
六、ActivityManagerService中一些重要的与调度相关的变量
（1）记录最近启动的Activity，如果RAM容量较小，则记录的最大值为10个，否则为20个，超过该值后，Ams会舍弃最早记录的Activity
static final int MAX_RECENT_TASKS = ActivityManager.isLowRamDeviceStatic() ? 10 : 20;
（2）当Ams通知应用程序启动（Launch）某个Activity时，如果超过10s，Ams就会放弃
static final int PROC_START_TIMEOUT = 10*1000;
（3）当Ams启动某个客户进程后，客户进程必须在10s之内报告Ams自己已经启动，否则Ams会认为指定的客户进程不存在
static final int PROC_START_TIMEOUT = 10*1000;
（4）等待序列：
当Ams内部还没有准备好时，如果客户进程请求启动某个Activity，那么会被暂时保存到该变量中，
final ArrayList
= new ArrayList
（5）优先启动，其次再停止。进程A1包含两个Activity，启动顺序为A1->A2，当用户请求启动A2时，如果A1正在运行，Ams会先暂停A1，然后启动A2，当A2启动后再停止A1。
private final ArrayList
七、startActivity()的流程
当用户单击某个应用图标后，执行程序会在该图标的onClick()事件中调用startActivity()方法，该方法会调用startActivityForResult()，在这个方法内部会调用Instrumentation对象的executeStartActivity()方法，每个Activity内部都有一个Instrumentation对象的引用，它就是一个管家，ActivityThread要创建或者暂停某个Activity都是通过它实现的。
流程图如下所示：
下面附上ActivityManagerService的完整源代码，有兴趣的童鞋可以深入研究。
/*
* Copyright (C) 2006-2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.server.am;
import static android.content.pm.PackageManager.PERMISSION_GRANTED;
import static com.android.internal.util.XmlUtils.readIntAttribute;
import static com.android.internal.util.XmlUtils.readLongAttribute;
import static com.android.internal.util.XmlUtils.writeIntAttribute;
import static com.android.internal.util.XmlUtils.writeLongAttribute;
import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT;
import static org.xmlpull.v1.XmlPullParser.START_TAG;
import static com.android.server.am.ActivityStackSupervisor.HOME_STACK_ID;
import android.app.AppOpsManager;
import android.appwidget.AppWidgetManager;
import android.util.ArrayMap;
import com.android.internal.R;
import com.android.internal.annotations.GuardedBy;
import com.android.internal.app.IAppOpsService;
import com.android.internal.app.ProcessStats;
import com.android.internal.app.ResolverActivity;
import com.android.internal.os.BackgroundThread;
import com.android.internal.os.BatteryStatsImpl;
import com.android.internal.os.ProcessCpuTracker;
import com.android.internal.os.TransferPipe;
import com.android.internal.util.FastPrintWriter;
import com.android.internal.util.FastXmlSerializer;
import com.android.internal.util.MemInfoReader;
import com.android.internal.util.Preconditions;
import com.android.server.AppOpsService;
import com.android.server.AttributeCache;
import com.android.server.IntentResolver;
import com.android.internal.app.ProcessMap;
import com.android.server.SystemServer;
import com.android.server.Watchdog;
import com.android.server.am.ActivityStack.ActivityState;
import com.android.server.firewall.IntentFirewall;
import com.android.server.pm.UserManagerService;
import com.android.server.wm.AppTransition;
import com.android.server.wm.StackBox;
import com.android.server.wm.WindowManagerService;
import com.google.android.collect.Lists;
import com.google.android.collect.Maps;
import dalvik.system.Zygote;
import libcore.io.IoUtils;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlSerializer;
import android.app.Activity;
import android.app.ActivityManager;
import android.app.ActivityManager.RunningTaskInfo;
import android.app.ActivityManager.StackBoxInfo;
import android.app.ActivityManager.StackInfo;
import android.app.ActivityManagerNative;
import android.app.ActivityOptions;
import android.app.ActivityThread;
import android.app.AlertDialog;
import android.app.AppGlobals;
import android.app.ApplicationErrorReport;
import android.app.Dialog;
import android.app.IActivityController;
import android.app.IApplicationThread;
import android.app.IInstrumentationWatcher;
import android.app.INotificationManager;
import android.app.IProcessObserver;
import android.app.IServiceConnection;
import android.app.IStopUserCallback;
import android.app.IThumbnailReceiver;
import android.app.IUiAutomationConnection;
import android.app.IUserSwitchObserver;
import android.app.Instrumentation;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.backup.IBackupManager;
import android.content.ActivityNotFoundException;
import android.content.BroadcastReceiver;
import android.content.ClipData;
import android.content.ComponentCallbacks2;
import android.content.ComponentName;
import android.content.ContentProvider;
import android.content.ContentResolver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.IContentProvider;
import android.content.IIntentReceiver;
import android.content.IIntentSender;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.IntentSender;
import android.content.pm.ActivityInfo;
import android.content.pm.ApplicationInfo;
import android.content.pm.ConfigurationInfo;
import android.content.pm.IPackageDataObserver;
import android.content.pm.IPackageManager;
import android.content.pm.InstrumentationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.ParceledListSlice;
import android.content.pm.UserInfo;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.PathPermission;
import android.content.pm.ProviderInfo;
import android.content.pm.ResolveInfo;
import android.content.pm.ServiceInfo;
import android.content.res.CompatibilityInfo;
import android.content.res.Configuration;
import android.graphics.Bitmap;
import android.net.Proxy;
import android.net.ProxyProperties;
import android.net.Uri;
import android.os.Binder;
import android.os.Build;
import android.os.Bundle;
import android.os.Debug;
import android.os.DropBoxManager;
import android.os.Environment;
import android.os.FileObserver;
import android.os.FileUtils;
import android.os.Handler;
import android.os.IBinder;
import android.os.IPermissionController;
import android.os.IRemoteCallback;
import android.os.IUserManager;
import android.os.Looper;
import android.os.Message;
import android.os.Parcel;
import android.os.ParcelFileDescriptor;
import android.os.Process;
import android.os.RemoteCallbackList;
import android.os.RemoteException;
import android.os.SELinux;
import android.os.ServiceManager;
import android.os.StrictMode;
import android.os.SystemClock;
import android.os.SystemProperties;
import android.os.UpdateLock;
import android.os.UserHandle;
import android.provider.Settings;
import android.text.format.DateUtils;
import android.text.format.Time;
import android.util.AtomicFile;
import android.util.EventLog;
import android.util.Log;
import android.util.Pair;
import android.util.PrintWriterPrinter;
import android.util.Slog;
import android.util.SparseArray;
import android.util.TimeUtils;
import android.util.Xml;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.WindowManager;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileDescriptor;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicLong;
public final class ActivityManagerService extends ActivityManagerNative
implements Watchdog.Monitor, BatteryStatsImpl.BatteryCallback {
private static final String USER_DATA_DIR = "/data/user/";
static final String TAG = "ActivityManager";
static final String TAG_MU = "ActivityManagerServiceMU";
static final boolean DEBUG = false;
static final boolean localLOGV = DEBUG;
static final boolean DEBUG_BACKUP = localLOGV || false;
static final boolean DEBUG_BROADCAST = localLOGV || false;
static final boolean DEBUG_BROADCAST_LIGHT = DEBUG_BROADCAST || false;
static final boolean DEBUG_BACKGROUND_BROADCAST = DEBUG_BROADCAST || false;
static final boolean DEBUG_CLEANUP = localLOGV || false;
static final boolean DEBUG_CONFIGURATION = localLOGV || false;
static final boolean DEBUG_FOCUS = false;
static final boolean DEBUG_IMMERSIVE = localLOGV || false;
static final boolean DEBUG_MU = localLOGV || false;
static final boolean DEBUG_OOM_ADJ = localLOGV || false;
static final boolean DEBUG_PAUSE = localLOGV || false;
static final boolean DEBUG_POWER = localLOGV || false;
static final boolean DEBUG_POWER_QUICK = DEBUG_POWER || false;
static final boolean DEBUG_PROCESS_OBSERVERS = localLOGV || false;
static final boolean DEBUG_PROCESSES = localLOGV || false;
static final boolean DEBUG_PROVIDER = localLOGV || false;
static final boolean DEBUG_RESULTS = localLOGV || false;
static final boolean DEBUG_SERVICE = localLOGV || false;
static final boolean DEBUG_SERVICE_EXECUTING = localLOGV || false;
static final boolean DEBUG_STACK = localLOGV || false;
static final boolean DEBUG_SWITCH = localLOGV || false;
static final boolean DEBUG_TASKS = localLOGV || false;
static final boolean DEBUG_THUMBNAILS = localLOGV || false;
static final boolean DEBUG_TRANSITION = localLOGV || false;
static final boolean DEBUG_URI_PERMISSION = localLOGV || false;
static final boolean DEBUG_USER_LEAVING = localLOGV || false;
static final boolean DEBUG_VISBILITY = localLOGV || false;
static final boolean DEBUG_PSS = localLOGV || false;
static final boolean DEBUG_LOCKSCREEN = localLOGV || false;
static final boolean VALIDATE_TOKENS = false;
static final boolean SHOW_ACTIVITY_START_TIME = true;
// Control over CPU and battery monitoring.
static final long BATTERY_STATS_TIME = 30*60*1000; // write battery stats every 30 minutes.
static final boolean MONITOR_CPU_USAGE = true;
static final long MONITOR_CPU_MIN_TIME = 5*1000; // don't sample cpu less than every 5 seconds.
static final long MONITOR_CPU_MAX_TIME = 0x0fffffff; // wait possibly forever for next cpu sample.
static final boolean MONITOR_THREAD_CPU_USAGE = false;
// The flags that are set for all calls we make to the package manager.
static final int STOCK_PM_FLAGS = PackageManager.GET_SHARED_LIBRARY_FILES;
private static final String SYSTEM_DEBUGGABLE = "ro.debuggable";
static final boolean IS_USER_BUILD = "user".equals(Build.TYPE);
// Maximum number of recent tasks that we can remember.
static final int MAX_RECENT_TASKS = ActivityManager.isLowRamDeviceStatic() ? 10 : 20;
// Amount of time after a call to stopAppSwitches() during which we will
// prevent further untrusted switches from happening.
static final long APP_SWITCH_DELAY_TIME = 5*1000;
// How long we wait for a launched process to attach to the activity manager
// before we decide it's never going to come up for real.
static final int PROC_START_TIMEOUT = 10*1000;
// How long we wait for a launched process to attach to the activity manager
// before we decide it's never going to come up for real, when the process was
// started with a wrapper for instrumentation (such as Valgrind) because it
// could take much longer than usual.
static final int PROC_START_TIMEOUT_WITH_WRAPPER = 300*1000;
// How long to wait after going idle before forcing apps to GC.
static final int GC_TIMEOUT = 5*1000;
// The minimum amount of time between successive GC requests for a process.
static final int GC_MIN_INTERVAL = 60*1000;
// The minimum amount of time between successive PSS requests for a process.
static final int FULL_PSS_MIN_INTERVAL = 10*60*1000;
// The minimum amount of time between successive PSS requests for a process
// when the request is due to the memory state being lowered.
static final int FULL_PSS_LOWERED_INTERVAL = 2*60*1000;
// The rate at which we check for apps using excessive power -- 15 mins.
static final int POWER_CHECK_DELAY = (DEBUG_POWER_QUICK ? 2 : 15) * 60*1000;
// The minimum sample duration we will allow before deciding we have
// enough data on wake locks to start killing things.
static final int WAKE_LOCK_MIN_CHECK_DURATION = (DEBUG_POWER_QUICK ? 1 : 5) * 60*1000;
// The minimum sample duration we will allow before deciding we have
// enough data on CPU usage to start killing things.
static final int CPU_MIN_CHECK_DURATION = (DEBUG_POWER_QUICK ? 1 : 5) * 60*1000;
// How long we allow a receiver to run before giving up on it.
static final int BROADCAST_FG_TIMEOUT = 10*1000;
static final int BROADCAST_BG_TIMEOUT = 60*1000;
// How long we wait until we timeout on key dispatching.
static final int KEY_DISPATCHING_TIMEOUT = 5*1000;
// How long we wait until we timeout on key dispatching during instrumentation.
static final int INSTRUMENTATION_KEY_DISPATCHING_TIMEOUT = 60*1000;
// Amount of time we wait for observers to handle a user switch before
// giving up on them and unfreezing the screen.
static final int USER_SWITCH_TIMEOUT = 2*1000;
// Maximum number of users we allow to be running at a time.
static final int MAX_RUNNING_USERS = 3;
// How long to wait in getAssistContextExtras for the activity and foreground services
// to respond with the result.
static final int PENDING_ASSIST_EXTRAS_TIMEOUT = 500;
// Maximum number of persisted Uri grants a package is allowed
static final int MAX_PERSISTED_URI_GRANTS = 128;
static final int MY_PID = Process.myPid();
static final String[] EMPTY_STRING_ARRAY = new String[0];
/** Run all ActivityStacks through this */
ActivityStackSupervisor mStackSupervisor;
public IntentFirewall mIntentFirewall;
private final boolean mHeadless;
// Whether we should show our dialogs (ANR, crash, etc) or just perform their
// default actuion automatically. Important for devices without direct input
// devices.
private boolean mShowDialogs = true;
/**
* Description of a request to start a new activity, which has been held
* due to app switches being disabled.
*/
static class PendingActivityLaunch {
final ActivityRecord r;
final ActivityRecord sourceRecord;
final int startFlags;
final ActivityStack stack;
PendingActivityLaunch(ActivityRecord _r, ActivityRecord _sourceRecord,
int _startFlags, ActivityStack _stack) {
r = _r;
sourceRecord = _sourceRecord;
startFlags = _startFlags;
stack = _stack;
}
}
final ArrayList mPendingActivityLaunches
= new ArrayList();
BroadcastQueue mFgBroadcastQueue;
BroadcastQueue mBgBroadcastQueue;
// Convenient for easy iteration over the queues. Foreground is first
// so that dispatch of foreground broadcasts gets precedence.
final BroadcastQueue[] mBroadcastQueues = new BroadcastQueue[2];
BroadcastQueue broadcastQueueForIntent(Intent intent) {
final boolean isFg = (intent.getFlags() & Intent.FLAG_RECEIVER_FOREGROUND) != 0;
if (DEBUG_BACKGROUND_BROADCAST) {
Slog.i(TAG, "Broadcast intent " + intent + " on "
+ (isFg ? "foreground" : "background")
+ " queue");
}
return (isFg) ? mFgBroadcastQueue : mBgBroadcastQueue;
}
BroadcastRecord broadcastRecordForReceiverLocked(IBinder receiver) {
for (BroadcastQueue queue : mBroadcastQueues) {
BroadcastRecord r = queue.getMatchingOrderedReceiver(receiver);
if (r != null) {
return r;
}
}
return null;
}
/**
* Activity we have told the window manager to have key focus.
*/
ActivityRecord mFocusedActivity = null;
/**
* List of intents that were used to start the most recent tasks.
*/
private final ArrayList mRecentTasks = new ArrayList();
public class PendingAssistExtras extends Binder implements Runnable {
public final ActivityRecord activity;
public boolean haveResult = false;
public Bundle result = null;
public PendingAssistExtras(ActivityRecord _activity) {
activity = _activity;
}
@Override
public void run() {
Slog.w(TAG, "getAssistContextExtras failed: timeout retrieving from " + activity);
synchronized (this) {
haveResult = true;
notifyAll();
}
}
}
final ArrayList mPendingAssistExtras
= new ArrayList();
/**
* Process management.
*/
final ProcessList mProcessList = new ProcessList();
/**
* All of the applications we currently have running organized by name.
* The keys are strings of the application package name (as
* returned by the package manager), and the keys are ApplicationRecord
* objects.
*/
final ProcessMap mProcessNames = new ProcessMap();
/**
* Tracking long-term execution of processes to look for abuse and other
* bad app behavior.
*/
final ProcessStatsService mProcessStats;
/**
* The currently running isolated processes.
*/
final SparseArray mIsolatedProcesses = new SparseArray();
/**
* Counter for assigning isolated process uids, to avoid frequently reusing the
* same ones.
*/
int mNextIsolatedProcessUid = 0;
/**
* The currently running heavy-weight process, if any.
*/
ProcessRecord mHeavyWeightProcess = null;
/**
* The last time that various processes have crashed.
*/
final ProcessMap mProcessCrashTimes = new ProcessMap();
/**
* Set of applications that we consider to be bad, and will reject
* incoming broadcasts from (which the user has no control over).
* Processes are added to this set when they have crashed twice within
* a minimum amount of time; they are removed from it when they are
* later restarted (hopefully due to some user action). The value is the
* time it was added to the list.
*/
final ProcessMap mBadProcesses = new ProcessMap();
/**
* All of the processes we currently have running organized by pid.
* The keys are the pid running the application.
*
* NOTE: This object is protected by its own lock, NOT the global
* activity manager lock!
*/
final SparseArray mPidsSelfLocked = new SparseArray();
/**
* All of the processes that have been forced to be foreground. The key
* is the pid of the caller who requested it (we hold a death
* link on it).
*/
abstract class ForegroundToken implements IBinder.DeathRecipient {
int pid;
IBinder token;
}
final SparseArray mForegroundProcesses = new SparseArray();
/**
* List of records for processes that someone had tried to start before the
* system was ready. We don't start them at that point, but ensure they
* are started by the time booting is complete.
*/
final ArrayList mProcessesOnHold = new ArrayList();
/**
* List of persistent applications that are in the process
* of being started.
*/
final ArrayList mPersistentStartingProcesses = new ArrayList();
/**
* Processes that are being forcibly torn down.
*/
final ArrayList mRemovedProcesses = new ArrayList();
/**
* List of running applications, sorted by recent usage.
* The first entry in the list is the least recently used.
*/
final ArrayList mLruProcesses = new ArrayList();
/**
* Where in mLruProcesses that the processes hosting activities start.
*/
int mLruProcessActivityStart = 0;
/**
* Where in mLruProcesses that the processes hosting services start.
* This is after (lower index) than mLruProcessesActivityStart.
*/
int mLruProcessServiceStart = 0;
/**
* List of processes that should gc as soon as things are idle.
*/
final ArrayList mProcessesToGc = new ArrayList();
/**
* Processes we want to collect PSS data from.
*/
final ArrayList mPendingPssProcesses = new ArrayList();
/**
* Last time we requested PSS data of all processes.
*/
long mLastFullPssTime = SystemClock.uptimeMillis();
/**
* This is the process holding what we currently consider to be
* the "home" activity.
*/
ProcessRecord mHomeProcess;
/**
* This is the process holding the activity the user last visited that
* is in a different process from the one they are currently in.
*/
ProcessRecord mPreviousProcess;
/**
* The time at which the previous process was last visible.
*/
long mPreviousProcessVisibleTime;
/**
* Which uses have been started, so are allowed to run code.
*/
final SparseArray mStartedUsers = new SparseArray();
/**
* LRU list of history of current users. Most recently current is at the end.
*/
final ArrayList mUserLru = new ArrayList();
/**
* Constant array of the users that are currently started.
*/
int[] mStartedUserArray = new int[] { 0 };
/**
* Registered observers of the user switching mechanics.
*/
final RemoteCallbackList mUserSwitchObservers
= new RemoteCallbackList();
/**
* Currently active user switch.
*/
Object mCurUserSwitchCallback;
/**
* Packages that the user has asked to have run in screen size
* compatibility mode instead of filling the screen.
*/
final CompatModePackages mCompatModePackages;
/**
* Set of IntentSenderRecord objects that are currently active.
*/
final HashMap> mIntentSenderRecords
= new HashMap>();
/**
* Fingerprints (hashCode()) of stack traces that we've
* already logged DropBox entries for. Guarded by itself. If
* something (rogue user app) forces this over
* MAX_DUP_SUPPRESSED_STACKS entries, the contents are cleared.
*/
private final HashSet mAlreadyLoggedViolatedStacks = new HashSet();
private static final int MAX_DUP_SUPPRESSED_STACKS = 5000;
/**
* Strict Mode background batched logging state.
*
* The string buffer is guarded by itself, and its lock is also
* used to determine if another batched write is already
* in-flight.
*/
private final StringBuilder mStrictModeBuffer = new StringBuilder();
/**
* Keeps track of all IIntentReceivers that have been registered for
* broadcasts. Hash keys are the receiver IBinder, hash value is
* a ReceiverList.
*/
final HashMap mRegisteredReceivers =
new HashMap();
/**
* Resolver for broadcast intents to registered receivers.
* Holds BroadcastFilter (subclass of IntentFilter).
*/
final IntentResolver mReceiverResolver
= new IntentResolver() {
@Override
protected boolean allowFilterResult(
BroadcastFilter filter, List dest) {
IBinder target = filter.receiverList.receiver.asBinder();
for (int i=dest.size()-1; i>=0; i--) {
if (dest.get(i).receiverList.receiver.asBinder() == target) {
return false;
}
}
return true;
}
@Override
protected BroadcastFilter newResult(BroadcastFilter filter, int match, int userId) {
if (userId == UserHandle.USER_ALL || filter.owningUserId == UserHandle.USER_ALL
|| userId == filter.owningUserId) {
return super.newResult(filter, match, userId);
}
return null;
}
@Override
protected BroadcastFilter[] newArray(int size) {
return new BroadcastFilter[size];
}
@Override
protected boolean isPackageForFilter(String packageName, BroadcastFilter filter) {
return packageName.equals(filter.packageName);
}
};
/**
* State of all active sticky broadcasts per user. Keys are the action of the
* sticky Intent, values are an ArrayList of all broadcasted intents with
* that action (which should usually be one). The SparseArray is keyed
* by the user ID the sticky is for, and can include UserHandle.USER_ALL
* for stickies that are sent to all users.
*/
final SparseArray>> mStickyBroadcasts =
new SparseArray>>();
final ActiveServices mServices;
/**
* Backup/restore process management
*/
String mBackupAppName = null;
BackupRecord mBackupTarget = null;
/**
* List of PendingThumbnailsRecord objects of clients who are still
* waiting to receive all of the thumbnails for a task.
*/
final ArrayList mPendingThumbnails =
new ArrayList();
final ProviderMap mProviderMap;
/**
* List of content providers who have clients waiting for them. The
* application is currently being launched and the provider will be
* removed from this list once it is published.
*/
final ArrayList mLaunchingProviders
= new ArrayList();
/**
* File storing persisted {@link #mGrantedUriPermissions}.
*/
private final AtomicFile mGrantFile;
/** XML constants used in {@link #mGrantFile} */
private static final String TAG_URI_GRANTS = "uri-grants";
private static final String TAG_URI_GRANT = "uri-grant";
private static final String ATTR_USER_HANDLE = "userHandle";
private static final String ATTR_SOURCE_PKG = "sourcePkg";
private static final String ATTR_TARGET_PKG = "targetPkg";
private static final String ATTR_URI = "uri";
private static final String ATTR_MODE_FLAGS = "modeFlags";
private static final String ATTR_CREATED_TIME = "createdTime";
/**
* Global set of specific {@link Uri} permissions that have been granted.
* This optimized lookup structure maps from {@link UriPermission#targetUid}
* to {@link UriPermission#uri} to {@link UriPermission}.
*/
@GuardedBy("this")
private final SparseArray>
mGrantedUriPermissions = new SparseArray>();
CoreSettingsObserver mCoreSettingsObserver;
/**
* Thread-local storage used to carry caller permissions over through
* indirect content-provider access.
*/
private class Identity {
public int pid;
public int uid;
Identity(int _pid, int _uid) {
pid = _pid;
uid = _uid;
}
}
private static ThreadLocal sCallerIdentity = new ThreadLocal();
/**
* All information we have collected about the runtime performance of
* any user id that can impact battery performance.
*/
final BatteryStatsService mBatteryStatsService;
/**
* Information about component usage
*/
final UsageStatsService mUsageStatsService;
/**
* Information about and control over application operations
*/
final AppOpsService mAppOpsService;
/**
* Current configuration information. HistoryRecord objects are given
* a reference to this object to indicate which configuration they are
* currently running in, so this object must be kept immutable.
*/
Configuration mConfiguration = new Configuration();
/**
* Current sequencing integer of the configuration, for skipping old
* configurations.
*/
int mConfigurationSeq = 0;
/**
* Hardware-reported OpenGLES version.
*/
final int GL_ES_VERSION;
/**
* List of initialization arguments to pass to all processes when binding applications to them.
* For example, references to the commonly used services.
*/
HashMap mAppBindArgs;
/**
* Temporary to avoid allocations. Protected by main lock.
*/
final StringBuilder mStringBuilder = new StringBuilder(256);
/**
* Used to control how we initialize the service.
*/
boolean mStartRunning = false;
ComponentName mTopComponent;
String mTopAction;
String mTopData;
boolean mProcessesReady = false;
boolean mSystemReady = false;
boolean mBooting = false;
boolean mWaitingUpdate = false;
boolean mDidUpdate = false;
boolean mOnBattery = false;
boolean mLaunchWarningShown = false;
Context mContext;
int mFactoryTest;
boolean mCheckedForSetup;
/**
* The time at which we will allow normal application switches again,
* after a call to {@link #stopAppSwitches()}.
*/
long mAppSwitchesAllowedTime;
/**
* This is set to true after the first switch after mAppSwitchesAllowedTime
* is set; any switches after that will clear the time.
*/
boolean mDidAppSwitch;
/**
* Last time (in realtime) at which we checked for power usage.
*/
long mLastPowerCheckRealtime;
/**
* Last time (in uptime) at which we checked for power usage.
*/
long mLastPowerCheckUptime;
/**
* Set while we are wanting to sleep, to prevent any
* activities from being started/resumed.
*/
boolean mSleeping = false;
/**
* State of external calls telling us if the device is asleep.
*/
boolean mWentToSleep = false;
/**
* State of external call telling us if the lock screen is shown.
*/
boolean mLockScreenShown = false;
/**
* Set if we are shutting down the system, similar to sleeping.
*/
boolean mShuttingDown = false;
/**
* Current sequence id for oom_adj computation traversal.
*/
int mAdjSeq = 0;
/**
* Current sequence id for process LRU updating.
*/
int mLruSeq = 0;
/**
* Keep track of the non-cached/empty process we last found, to help
* determine how to distribute cached/empty processes next time.
*/
int mNumNonCachedProcs = 0;
/**
* Keep track of the number of cached hidden procs, to balance oom adj
* distribution between those and empty procs.
*/
int mNumCachedHiddenProcs = 0;
/**
* Keep track of the number of service processes we last found, to
* determine on the next iteration which should be B services.
*/
int mNumServiceProcs = 0;
int mNewNumAServiceProcs = 0;
int mNewNumServiceProcs = 0;
/**
* Allow the current computed overall memory level of the system to go down?
* This is set to false when we are killing processes for reasons other than
* memory management, so that the now smaller process list will not be taken as
* an indication that memory is tighter.
*/
boolean mAllowLowerMemLevel = false;
/**
* The last computed memory level, for holding when we are in a state that
* processes are going away for other reasons.
*/
int mLastMemoryLevel = ProcessStats.ADJ_MEM_FACTOR_NORMAL;
/**
* The last total number of process we have, to determine if changes actually look
* like a shrinking number of process due to lower RAM.
*/
int mLastNumProcesses;
/**
* The uptime of the last time we performed idle maintenance.
*/
long mLastIdleTime = SystemClock.uptimeMillis();
/**
* Total time spent with RAM that has been added in the past since the last idle time.
*/
long mLowRamTimeSinceLastIdle = 0;
/**
* If RAM is currently low, when that horrible situatin started.
*/
long mLowRamStartTime = 0;
/**
* This is set if we had to do a delayed dexopt of an app before launching
* it, to increasing the ANR timeouts in that case.
*/
boolean mDidDexOpt;
String mDebugApp = null;
boolean mWaitForDebugger = false;
boolean mDebugTransient = false;
String mOrigDebugApp = null;
boolean mOrigWaitForDebugger = false;
boolean mAlwaysFinishActivities = false;
IActivityController mController = null;
String mProfileApp = null;
ProcessRecord mProfileProc = null;
String mProfileFile;
ParcelFileDescriptor mProfileFd;
int mProfileType = 0;
boolean mAutoStopProfiler = false;
String mOpenGlTraceApp = null;
static class ProcessChangeItem {
static final int CHANGE_ACTIVITIES = 1<<0;
static final int CHANGE_IMPORTANCE= 1<<1;
int changes;
int uid;
int pid;
int importance;
boolean foregroundActivities;
}
final RemoteCallbackList mProcessObservers
= new RemoteCallbackList();
ProcessChangeItem[] mActiveProcessChanges = new ProcessChangeItem[5];
final ArrayList mPendingProcessChanges
= new ArrayList();
final ArrayList mAvailProcessChanges
= new ArrayList();
/**
* Runtime CPU use collection thread. This object's lock is used to
* protect all related state.
*/
final Thread mProcessCpuThread;
/**
* Used to collect process stats when showing not responding dialog.
* Protected by mProcessCpuThread.
*/
final ProcessCpuTracker mProcessCpuTracker = new ProcessCpuTracker(
MONITOR_THREAD_CPU_USAGE);
final AtomicLong mLastCpuTime = new AtomicLong(0);
final AtomicBoolean mProcessCpuMutexFree = new AtomicBoolean(true);
long mLastWriteTime = 0;
/**
* Used to retain an update lock when the foreground activity is in
* immersive mode.
*/
final UpdateLock mUpdateLock = new UpdateLock("immersive");
/**
* Set to true after the system has finished booting.
*/
boolean mBooted = false;
int mProcessLimit = ProcessList.MAX_CACHED_APPS;
int mProcessLimitOverride = -1;
WindowManagerService mWindowManager;
static ActivityManagerService mSelf;
static ActivityThread mSystemThread;
int mCurrentUserId = 0;
private UserManagerService mUserManager;
private final class AppDeathRecipient implements IBinder.DeathRecipient {
final ProcessRecord mApp;
final int mPid;
final IApplicationThread mAppThread;
AppDeathRecipient(ProcessRecord app, int pid,
IApplicationThread thread) {
if (localLOGV) Slog.v(
TAG, "New death recipient " + this
+ " for thread " + thread.asBinder());
mApp = app;
mPid = pid;
mAppThread = thread;
}
@Override
public void binderDied() {
if (localLOGV) Slog.v(
TAG, "Death received in " + this
+ " for thread " + mAppThread.asBinder());
synchronized(ActivityManagerService.this) {
appDiedLocked(mApp, mPid, mAppThread);
}
}
}
static final int SHOW_ERROR_MSG = 1;
static final int SHOW_NOT_RESPONDING_MSG = 2;
static final int SHOW_FACTORY_ERROR_MSG = 3;
static final int UPDATE_CONFIGURATION_MSG = 4;
static final int GC_BACKGROUND_PROCESSES_MSG = 5;
static final int WAIT_FOR_DEBUGGER_MSG = 6;
static final int SERVICE_TIMEOUT_MSG = 12;
static final int UPDATE_TIME_ZONE = 13;
static final int SHOW_UID_ERROR_MSG = 14;
static final int IM_FEELING_LUCKY_MSG = 15;
static final int PROC_START_TIMEOUT_MSG = 20;
static final int DO_PENDING_ACTIVITY_LAUNCHES_MSG = 21;
static final int KILL_APPLICATION_MSG = 22;
static final int FINALIZE_PENDING_INTENT_MSG = 23;
static final int POST_HEAVY_NOTIFICATION_MSG = 24;
static final int CANCEL_HEAVY_NOTIFICATION_MSG = 25;
static final int SHOW_STRICT_MODE_VIOLATION_MSG = 26;
static final int CHECK_EXCESSIVE_WAKE_LOCKS_MSG = 27;
static final int CLEAR_DNS_CACHE_MSG = 28;
static final int UPDATE_HTTP_PROXY_MSG = 29;
static final int SHOW_COMPAT_MODE_DIALOG_MSG = 30;
static final int DISPATCH_PROCESSES_CHANGED = 31;
static final int DISPATCH_PROCESS_DIED = 32;
static final int REPORT_MEM_USAGE_MSG = 33;
static final int REPORT_USER_SWITCH_MSG = 34;
static final int CONTINUE_USER_SWITCH_MSG = 35;
static final int USER_SWITCH_TIMEOUT_MSG = 36;
static final int IMMERSIVE_MODE_LOCK_MSG = 37;
static final int PERSIST_URI_GRANTS_MSG = 38;
static final int REQUEST_ALL_PSS_MSG = 39;
static final int FIRST_ACTIVITY_STACK_MSG = 100;
static final int FIRST_BROADCAST_QUEUE_MSG = 200;
static final int FIRST_COMPAT_MODE_MSG = 300;
static final int FIRST_SUPERVISOR_STACK_MSG = 100;
AlertDialog mUidAlert;
CompatModeDialog mCompatModeDialog;
long mLastMemUsageReportTime = 0;
/**
* Flag whether the current user is a "monkey", i.e. whether
* the UI is driven by a UI automation tool.
*/
private boolean mUserIsMonkey;
final Handler mHandler = new Handler() {
//public Handler() {
// if (localLOGV) Slog.v(TAG, "Handler started!");
//}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case SHOW_ERROR_MSG: {
HashMap data = (HashMap) msg.obj;
boolean showBackground = Settings.Secure.getInt(mContext.getContentResolver(),
Settings.Secure.ANR_SHOW_BACKGROUND, 0) != 0;
synchronized (ActivityManagerService.this) {
ProcessRecord proc = (ProcessRecord)data.get("app");
AppErrorResult res = (AppErrorResult) data.get("result");
if (proc != null && proc.crashDialog != null) {
Slog.e(TAG, "App already has crash dialog: " + proc);
if (res != null) {
res.set(0);
}
return;
}
if (!showBackground && UserHandle.getAppId(proc.uid)
>= Process.FIRST_APPLICATION_UID && proc.userId != mCurrentUserId
&& proc.pid != MY_PID) {
Slog.w(TAG, "Skipping crash dialog of " + proc + ": background");
if (res != null) {
res.set(0);
}
return;
}
if (mShowDialogs && !mSleeping && !mShuttingDown) {
Dialog d = new AppErrorDialog(mContext,
ActivityManagerService.this, res, proc);
d.show();
proc.crashDialog = d;
} else {
// The device is asleep, so just pretend that the user
// saw a crash dialog and hit "force quit".
if (res != null) {
res.set(0);
}
}
}
ensureBootCompleted();
} break;
case SHOW_NOT_RESPONDING_MSG: {
synchronized (ActivityManagerService.this) {
HashMap data = (HashMap) msg.obj;
ProcessRecord proc = (ProcessRecord)data.get("app");
if (proc != null && proc.anrDialog != null) {
Slog.e(TAG, "App already has anr dialog: " + proc);
return;
}
Intent intent = new Intent("android.intent.action.ANR");
if (!mProcessesReady) {
intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY
| Intent.FLAG_RECEIVER_FOREGROUND);
}
broadcastIntentLocked(null, null, intent,
null, null, 0, null, null, null, AppOpsManager.OP_NONE,
false, false, MY_PID, Process.SYSTEM_UID, 0 /* TODO: Verify */);
if (mShowDialogs) {
Dialog d = new AppNotRespondingDialog(ActivityManagerService.this,
mContext, proc, (ActivityRecord)data.get("activity"),
msg.arg1 != 0);
d.show();
proc.anrDialog = d;
} else {
// Just kill the app if there is no dialog to be shown.
killAppAtUsersRequest(proc, null);
}
}
ensureBootCompleted();
} break;
case SHOW_STRICT_MODE_VIOLATION_MSG: {
HashMap data = (HashMap) msg.obj;
synchronized (ActivityManagerService.this) {
ProcessRecord proc = (ProcessRecord) data.get("app");
if (proc == null) {
Slog.e(TAG, "App not found when showing strict mode dialog.");
break;
}
if (proc.crashDialog != null) {
Slog.e(TAG, "App already has strict mode dialog: " + proc);
return;
}
AppErrorResult res = (AppErrorResult) data.get("result");
if (mShowDialogs && !mSleeping && !mShuttingDown) {
Dialog d = new StrictModeViolationDialog(mContext,
ActivityManagerService.this, res, proc);
d.show();
proc.crashDialog = d;
} else {
// The device is asleep, so just pretend that the user
// saw a crash dialog and hit "force quit".
res.set(0);
}
}
ensureBootCompleted();
} break;
case SHOW_FACTORY_ERROR_MSG: {
Dialog d = new FactoryErrorDialog(
mContext, msg.getData().getCharSequence("msg"));
d.show();
ensureBootCompleted();
} break;
case UPDATE_CONFIGURATION_MSG: {
final ContentResolver resolver = mContext.getContentResolver();
Settings.System.putConfiguration(resolver, (Configuration)msg.obj);
} break;
case GC_BACKGROUND_PROCESSES_MSG: {
synchronized (ActivityManagerService.this) {
performAppGcsIfAppropriateLocked();
}
} break;
case WAIT_FOR_DEBUGGER_MSG: {
synchronized (ActivityManagerService.this) {
ProcessRecord app = (ProcessRecord)msg.obj;
if (msg.arg1 != 0) {
if (!app.waitedForDebugger) {
Dialog d = new AppWaitingForDebuggerDialog(
ActivityManagerService.this,
mContext, app);
app.waitDialog = d;
app.waitedForDebugger = true;
d.show();
}
} else {
if (app.waitDialog != null) {
app.waitDialog.dismiss();
app.waitDialog = null;
}
}
}
} break;
case SERVICE_TIMEOUT_MSG: {
if (mDidDexOpt) {
mDidDexOpt = false;
Message nmsg = mHandler.obtainMessage(SERVICE_TIMEOUT_MSG);
nmsg.obj = msg.obj;
mHandler.sendMessageDelayed(nmsg, ActiveServices.SERVICE_TIMEOUT);
return;
}
mServices.serviceTimeout((ProcessRecord)msg.obj);
} break;
case UPDATE_TIME_ZONE: {
synchronized (ActivityManagerService.this) {
for (int i = mLruProcesses.size() - 1 ; i >= 0 ; i--) {
ProcessRecord r = mLruProcesses.get(i);
if (r.thread != null) {
try {
r.thread.updateTimeZone();
} catch (RemoteException ex) {
Slog.w(TAG, "Failed to update time zone for: " + r.info.processName);
}
}
}
}
} break;
case CLEAR_DNS_CACHE_MSG: {
synchronized (ActivityManagerService.this) {
for (int i = mLruProcesses.size() - 1 ; i >= 0 ; i--) {
ProcessRecord r = mLruProcesses.get(i);
if (r.thread != null) {
try {
r.thread.clearDnsCache();
} catch (RemoteException ex) {
Slog.w(TAG, "Failed to clear dns cache for: " + r.info.processName);
}
}
}
}
} break;
case UPDATE_HTTP_PROXY_MSG: {
ProxyProperties proxy = (ProxyProperties)msg.obj;
String host = "";
String port = "";
String exclList = "";
String pacFileUrl = null;
if (proxy != null) {
host = proxy.getHost();
port = Integer.toString(proxy.getPort());
exclList = proxy.getExclusionList();
pacFileUrl = proxy.getPacFileUrl();
}
synchronized (ActivityManagerService.this) {
for (int i = mLruProcesses.size() - 1 ; i >= 0 ; i--) {
ProcessRecord r = mLruProcesses.get(i);
if (r.thread != null) {
try {
r.thread.setHttpProxy(host, port, exclList, pacFileUrl);
} catch (RemoteException ex) {
Slog.w(TAG, "Failed to update http proxy for: " +
r.info.processName);
}
}
}
}
} break;
case SHOW_UID_ERROR_MSG: {
String title = "System UIDs Inconsistent";
String text = "UIDs on the system are inconsistent, you need to wipe your"
+ " data partition or your device will be unstable.";
Log.e(TAG, title + ": " + text);
if (mShowDialogs) {
// XXX This is a temporary dialog, no need to localize.
AlertDialog d = new BaseErrorDialog(mContext);
d.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ERROR);
d.setCancelable(false);
d.setTitle(title);
d.setMessage(text);
d.setButton(DialogInterface.BUTTON_POSITIVE, "I'm Feeling Lucky",
mHandler.obtainMessage(IM_FEELING_LUCKY_MSG));
mUidAlert = d;
d.show();
}
} break;
case IM_FEELING_LUCKY_MSG: {
if (mUidAlert != null) {
mUidAlert.dismiss();
mUidAlert = null;
}
} break;
case PROC_START_TIMEOUT_MSG: {
if (mDidDexOpt) {
mDidDexOpt = false;
Message nmsg = mHandler.obtainMessage(PROC_START_TIMEOUT_MSG);
nmsg.obj = msg.obj;
mHandler.sendMessageDelayed(nmsg, PROC_START_TIMEOUT);
return;
}
ProcessRecord app = (ProcessRecord)msg.obj;
synchronized (ActivityManagerService.this) {
processStartTimedOutLocked(app);
}
} break;
case DO_PENDING_ACTIVITY_LAUNCHES_MSG: {
synchronized (ActivityManagerService.this) {
doPendingActivityLaunchesLocked(true);
}
} break;
case KILL_APPLICATION_MSG: {
synchronized (ActivityManagerService.this) {
int appid = msg.arg1;
boolean restart = (msg.arg2 == 1);
Bundle bundle = (Bundle)msg.obj;
String pkg = bundle.getString("pkg");
String reason = bundle.getString("reason");
forceStopPackageLocked(pkg, appid, restart, false, true, false,
UserHandle.USER_ALL, reason);
}
} break;
case FINALIZE_PENDING_INTENT_MSG: {
((PendingIntentRecord)msg.obj).completeFinalize();
} break;
case POST_HEAVY_NOTIFICATION_MSG: {
INotificationManager inm = NotificationManager.getService();
if (inm == null) {
return;
}
ActivityRecord root = (ActivityRecord)msg.obj;
ProcessRecord process = root.app;
if (process == null) {
return;
}
try {
Context context = mContext.createPackageContext(process.info.packageName, 0);
String text = mContext.getString(R.string.heavy_weight_notification,
context.getApplicationInfo().loadLabel(context.getPackageManager()));
Notification notification = new Notification();
notification.icon = com.android.internal.R.drawable.stat_sys_adb; //context.getApplicationInfo().icon;
notification.when = 0;
notification.flags = Notification.FLAG_ONGOING_EVENT;
notification.tickerText = text;
notification.defaults = 0; // please be quiet
notification.sound = null;
notification.vibrate = null;
notification.setLatestEventInfo(context, text,
mContext.getText(R.string.heavy_weight_notification_detail),
PendingIntent.getActivityAsUser(mContext, 0, root.intent,
PendingIntent.FLAG_CANCEL_CURRENT, null,
new UserHandle(root.userId)));
try {
int[] outId = new int[1];
inm.enqueueNotificationWithTag("android", "android", null,
R.string.heavy_weight_notification,
notification, outId, root.userId);
} catch (RuntimeException e) {
Slog.w(ActivityManagerService.TAG,
"Error showing notification for heavy-weight app", e);
} catch (RemoteException e) {
}
} catch (NameNotFoundException e) {
Slog.w(TAG, "Unable to create context for heavy notification", e);
}
} break;
case CANCEL_HEAVY_NOTIFICATION_MSG: {
INotificationManager inm = NotificationManager.getService();
if (inm == null) {
return;
}
try {
inm.cancelNotificationWithTag("android", null,
R.string.heavy_weight_notification, msg.arg1);
} catch (RuntimeException e) {
Slog.w(ActivityManagerService.TAG,
"Error canceling notification for service", e);
} catch (RemoteException e) {
}
} break;
case CHECK_EXCESSIVE_WAKE_LOCKS_MSG: {
synchronized (ActivityManagerService.this) {
checkExcessivePowerUsageLocked(true);
removeMessages(CHECK_EXCESSIVE_WAKE_LOCKS_MSG);
Message nmsg = obtainMessage(CHECK_EXCESSIVE_WAKE_LOCKS_MSG);
sendMessageDelayed(nmsg, POWER_CHECK_DELAY);
}
} break;
case SHOW_COMPAT_MODE_DIALOG_MSG: {
synchronized (ActivityManagerService.this) {
ActivityRecord ar = (ActivityRecord)msg.obj;
if (mCompatModeDialog != null) {
if (mCompatModeDialog.mAppInfo.packageName.equals(
ar.info.applicationInfo.packageName)) {
return;
}
mCompatModeDialog.dismiss();
mCompatModeDialog = null;
}
if (ar != null && false) {
if (mCompatModePackages.getPackageAskCompatModeLocked(
ar.packageName)) {
int mode = mCompatModePackages.computeCompatModeLocked(
ar.info.applicationInfo);
if (mode == ActivityManager.COMPAT_MODE_DISABLED
|| mode == ActivityManager.COMPAT_MODE_ENABLED) {
mCompatModeDialog = new CompatModeDialog(
ActivityManagerService.this, mContext,
ar.info.applicationInfo);
mCompatModeDialog.show();
}
}
}
}
break;
}
case DISPATCH_PROCESSES_CHANGED: {
dispatchProcessesChanged();
break;
}
case DISPATCH_PROCESS_DIED: {
final int pid = msg.arg1;
final int uid = msg.arg2;
dispatchProcessDied(pid, uid);
break;
}
case REPORT_MEM_USAGE_MSG: {
final ArrayList memInfos = (ArrayList)msg.obj;
Thread thread = new Thread() {
@Override public void run() {
final SparseArray infoMap
= new SparseArray(memInfos.size());
for (int i=0, N=memInfos.size(); i 0) {
long pss = Debug.getPss(st.pid, null);
if (pss > 0) {
if (infoMap.indexOfKey(st.pid) < 0) {
ProcessMemInfo mi = new ProcessMemInfo(st.name, st.pid,
ProcessList.NATIVE_ADJ, -1, "native", null);
mi.pss = pss;
memInfos.add(mi);
}
}
}
}
}
long totalPss = 0;
for (int i=0, N=memInfos.size(); i() {
@Override public int compare(ProcessMemInfo lhs, ProcessMemInfo rhs) {
if (lhs.oomAdj != rhs.oomAdj) {
return lhs.oomAdj < rhs.oomAdj ? -1 : 1;
}
if (lhs.pss != rhs.pss) {
return lhs.pss < rhs.pss ? 1 : -1;
}
return 0;
}
});
StringBuilder tag = new StringBuilder(128);
StringBuilder stack = new StringBuilder(128);
tag.append("Low on memory -- ");
appendMemBucket(tag, totalPss, "total", false);
appendMemBucket(stack, totalPss, "total", true);
StringBuilder logBuilder = new StringBuilder(1024);
logBuilder.append("Low on memory:\n");
boolean firstLine = true;
int lastOomAdj = Integer.MIN_VALUE;
for (int i=0, N=memInfos.size(); i= ProcessList.FOREGROUND_APP_ADJ) {
if (firstLine) {
stack.append(":");
firstLine = false;
}
stack.append("\n\t at ");
} else {
stack.append("$");
}
} else {
tag.append(" ");
stack.append("$");
}
if (mi.oomAdj <= ProcessList.FOREGROUND_APP_ADJ) {
appendMemBucket(tag, mi.pss, mi.name, false);
}
appendMemBucket(stack, mi.pss, mi.name, true);
if (mi.oomAdj >= ProcessList.FOREGROUND_APP_ADJ
&& ((i+1) >= N || memInfos.get(i+1).oomAdj != lastOomAdj)) {
stack.append("(");
for (int k=0; k= mPendingPssProcesses.size()) {
if (DEBUG_PSS) Slog.d(TAG, "Collected PSS of " + num + " of " + i
+ " processes in " + (SystemClock.uptimeMillis()-start) + "ms");
mPendingPssProcesses.clear();
return;
}
proc = mPendingPssProcesses.get(i);
procState = proc.pssProcState;
if (proc.thread != null && procState == proc.setProcState) {
pid = proc.pid;
} else {
proc = null;
pid = 0;
}
i++;
}
if (proc != null) {
long pss = Debug.getPss(pid, tmp);
synchronized (ActivityManagerService.this) {
if (proc.thread != null && proc.setProcState == procState
&& proc.pid == pid) {
num++;
proc.lastPssTime = SystemClock.uptimeMillis();
proc.baseProcessTracker.addPss(pss, tmp[0], true, proc.pkgList);
if (DEBUG_PSS) Slog.d(TAG, "PSS of " + proc.toShortString()
+ ": " + pss + " lastPss=" + proc.lastPss
+ " state=" + ProcessList.makeProcStateString(procState));
if (proc.initialIdlePss == 0) {
proc.initialIdlePss = pss;
}
proc.lastPss = pss;
if (procState >= ActivityManager.PROCESS_STATE_HOME) {
proc.lastCachedPss = pss;
}
}
}
}
} while (true);
}
}
}
};
public static void setSystemProcess() {
try {
ActivityManagerService m = mSelf;
ServiceManager.addService(Context.ACTIVITY_SERVICE, m, true);
ServiceManager.addService(ProcessStats.SERVICE_NAME, m.mProcessStats);
ServiceManager.addService("meminfo", new MemBinder(m));
ServiceManager.addService("gfxinfo", new GraphicsBinder(m));
ServiceManager.addService("dbinfo", new DbBinder(m));
if (MONITOR_CPU_USAGE) {
ServiceManager.addService("cpuinfo", new CpuBinder(m));
}
ServiceManager.addService("permission", new PermissionController(m));
ApplicationInfo info =
mSelf.mContext.getPackageManager().getApplicationInfo(
"android", STOCK_PM_FLAGS);
mSystemThread.installSystemApplicationInfo(info);
synchronized (mSelf) {
ProcessRecord app = mSelf.newProcessRecordLocked(info,
info.processName, false);
app.persistent = true;
app.pid = MY_PID;
app.maxAdj = ProcessList.SYSTEM_ADJ;
app.makeActive(mSystemThread.getApplicationThread(), mSelf.mProcessStats);
mSelf.mProcessNames.put(app.processName, app.uid, app);
synchronized (mSelf.mPidsSelfLocked) {
mSelf.mPidsSelfLocked.put(app.pid, app);
}
mSelf.updateLruProcessLocked(app, true, false);
}
} catch (PackageManager.NameNotFoundException e) {
throw new RuntimeException(
"Unable to find android system package", e);
}
}
public void setWindowManager(WindowManagerService wm) {
mWindowManager = wm;
mStackSupervisor.setWindowManager(wm);
wm.createStack(HOME_STACK_ID, -1, StackBox.TASK_STACK_GOES_OVER, 1.0f);
}
public void startObservingNativeCrashes() {
final NativeCrashListener ncl = new NativeCrashListener();
ncl.start();
}
public static final Context main(int factoryTest) {
AThread thr = new AThread();
thr.start();
synchronized (thr) {
while (thr.mService == null) {
try {
thr.wait();
} catch (InterruptedException e) {
}
}
}
ActivityManagerService m = thr.mService;
mSelf = m;
ActivityThread at = ActivityThread.systemMain();
mSystemThread = at;
Context context = at.getSystemContext();
context.setTheme(android.R.style.Theme_Holo);
m.mContext = context;
m.mFactoryTest = factoryTest;
m.mIntentFirewall = new IntentFirewall(m.new IntentFirewallInterface());
m.mStackSupervisor = new ActivityStackSupervisor(m, context, thr.mLooper);
m.mBatteryStatsService.publish(context);
m.mUsageStatsService.publish(context);
m.mAppOpsService.publish(context);
synchronized (thr) {
thr.mReady = true;
thr.notifyAll();
}
m.startRunning(null, null, null, null);
return context;
}
public static ActivityManagerService self() {
return mSelf;
}
public IAppOpsService getAppOpsService() {
return mAppOpsService;
}
static class AThread extends Thread {
ActivityManagerService mService;
Looper mLooper;
boolean mReady = false;
public AThread() {
super("ActivityManager");
}
@Override
public void run() {
Looper.prepare();
android.os.Process.setThreadPriority(
android.os.Process.THREAD_PRIORITY_FOREGROUND);
android.os.Process.setCanSelfBackground(false);
ActivityManagerService m = new ActivityManagerService();
synchronized (this) {
mService = m;
mLooper = Looper.myLooper();
Watchdog.getInstance().addThread(new Handler(mLooper), getName());
notifyAll();
}
synchronized (this) {
while (!mReady) {
try {
wait();
} catch (InterruptedException e) {
}
}
}
// For debug builds, log event loop stalls to dropbox for analysis.
if (StrictMode.conditionallyEnableDebugLogging()) {
Slog.i(TAG, "Enabled StrictMode logging for AThread's Looper");
}
Looper.loop();
}
}
static class MemBinder extends Binder {
ActivityManagerService mActivityManagerService;
MemBinder(ActivityManagerService activityManagerService) {
mActivityManagerService = activityManagerService;
}
@Override
protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
if (mActivityManagerService.checkCallingPermission(android.Manifest.permission.DUMP)
!= PackageManager.PERMISSION_GRANTED) {
pw.println("Permission Denial: can't dump meminfo from from pid="
+ Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()
+ " without permission " + android.Manifest.permission.DUMP);
return;
}
mActivityManagerService.dumpApplicationMemoryUsage(fd, pw, " ", args, false, null);
}
}
static class GraphicsBinder extends Binder {
ActivityManagerService mActivityManagerService;
GraphicsBinder(ActivityManagerService activityManagerService) {
mActivityManagerService = activityManagerService;
}
@Override
protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
if (mActivityManagerService.checkCallingPermission(android.Manifest.permission.DUMP)
!= PackageManager.PERMISSION_GRANTED) {
pw.println("Permission Denial: can't dump gfxinfo from from pid="
+ Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()
+ " without permission " + android.Manifest.permission.DUMP);
return;
}
mActivityManagerService.dumpGraphicsHardwareUsage(fd, pw, args);
}
}
static class DbBinder extends Binder {
ActivityManagerService mActivityManagerService;
DbBinder(ActivityManagerService activityManagerService) {
mActivityManagerService = activityManagerService;
}
@Override
protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
if (mActivityManagerService.checkCallingPermission(android.Manifest.permission.DUMP)
!= PackageManager.PERMISSION_GRANTED) {
pw.println("Permission Denial: can't dump dbinfo from from pid="
+ Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()
+ " without permission " + android.Manifest.permission.DUMP);
return;
}
mActivityManagerService.dumpDbInfo(fd, pw, args);
}
}
static class CpuBinder extends Binder {
ActivityManagerService mActivityManagerService;
CpuBinder(ActivityManagerService activityManagerService) {
mActivityManagerService = activityManagerService;
}
@Override
protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
if (mActivityManagerService.checkCallingPermission(android.Manifest.permission.DUMP)
!= PackageManager.PERMISSION_GRANTED) {
pw.println("Permission Denial: can't dump cpuinfo from from pid="
+ Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()
+ " without permission " + android.Manifest.permission.DUMP);
return;
}
synchronized (mActivityManagerService.mProcessCpuThread) {
pw.print(mActivityManagerService.mProcessCpuTracker.printCurrentLoad());
pw.print(mActivityManagerService.mProcessCpuTracker.printCurrentState(
SystemClock.uptimeMillis()));
}
}
}
private ActivityManagerService() {
Slog.i(TAG, "Memory class: " + ActivityManager.staticGetMemoryClass());
mFgBroadcastQueue = new BroadcastQueue(this, "foreground", BROADCAST_FG_TIMEOUT, false);
mBgBroadcastQueue = new BroadcastQueue(this, "background", BROADCAST_BG_TIMEOUT, true);
mBroadcastQueues[0] = mFgBroadcastQueue;
mBroadcastQueues[1] = mBgBroadcastQueue;
mServices = new ActiveServices(this);
mProviderMap = new ProviderMap(this);
File dataDir = Environment.getDataDirectory();
File systemDir = new File(dataDir, "system");
systemDir.mkdirs();
mBatteryStatsService = new BatteryStatsService(new File(
systemDir, "batterystats.bin").toString());
mBatteryStatsService.getActiveStatistics().readLocked();
mBatteryStatsService.getActiveStatistics().writeAsyncLocked();
mOnBattery = DEBUG_POWER ? true
: mBatteryStatsService.getActiveStatistics().getIsOnBattery();
mBatteryStatsService.getActiveStatistics().setCallback(this);
mProcessStats = new ProcessStatsService(this, new File(systemDir, "procstats"));
mUsageStatsService = new UsageStatsService(new File(systemDir, "usagestats").toString());
mAppOpsService = new AppOpsService(new File(systemDir, "appops.xml"));
mGrantFile = new AtomicFile(new File(systemDir, "urigrants.xml"));
mHeadless = "1".equals(SystemProperties.get("ro.config.headless", "0"));
// User 0 is the first and only user that runs at boot.
mStartedUsers.put(0, new UserStartedState(new UserHandle(0), true));
mUserLru.add(Integer.valueOf(0));
updateStartedUserArrayLocked();
GL_ES_VERSION = SystemProperties.getInt("ro.opengles.version",
ConfigurationInfo.GL_ES_VERSION_UNDEFINED);
mConfiguration.setToDefaults();
mConfiguration.setLocale(Locale.getDefault());
mConfigurationSeq = mConfiguration.seq = 1;
mProcessCpuTracker.init();
mCompatModePackages = new CompatModePackages(this, systemDir);
// Add ourself to the Watchdog monitors.
Watchdog.getInstance().addMonitor(this);
mProcessCpuThread = new Thread("CpuTracker") {
@Override
public void run() {
while (true) {
try {
try {
synchronized(this) {
final long now = SystemClock.uptimeMillis();
long nextCpuDelay = (mLastCpuTime.get()+MONITOR_CPU_MAX_TIME)-now;
long nextWriteDelay = (mLastWriteTime+BATTERY_STATS_TIME)-now;
//Slog.i(TAG, "Cpu delay=" + nextCpuDelay
// + ", write delay=" + nextWriteDelay);
if (nextWriteDelay < nextCpuDelay) {
nextCpuDelay = nextWriteDelay;
}
if (nextCpuDelay > 0) {
mProcessCpuMutexFree.set(true);
this.wait(nextCpuDelay);
}
}
} catch (InterruptedException e) {
}
updateCpuStatsNow();
} catch (Exception e) {
Slog.e(TAG, "Unexpected exception collecting process stats", e);
}
}
}
};
mProcessCpuThread.start();
}
@Override
public boolean onTransact(int code, Parcel data, Parcel reply, int flags)
throws RemoteException {
if (code == SYSPROPS_TRANSACTION) {
// We need to tell all apps about the system property change.
ArrayList procs = new ArrayList();
synchronized(this) {
final int NP = mProcessNames.getMap().size();
for (int ip=0; ip apps = mProcessNames.getMap().valueAt(ip);
final int NA = apps.size();
for (int ia=0; ia= now - MONITOR_CPU_MIN_TIME) {
return;
}
if (mProcessCpuMutexFree.compareAndSet(true, false)) {
synchronized (mProcessCpuThread) {
mProcessCpuThread.notify();
}
}
}
void updateCpuStatsNow() {
synchronized (mProcessCpuThread) {
mProcessCpuMutexFree.set(false);
final long now = SystemClock.uptimeMillis();
boolean haveNewCpuStats = false;
if (MONITOR_CPU_USAGE &&
mLastCpuTime.get() < (now-MONITOR_CPU_MIN_TIME)) {
mLastCpuTime.set(now);
haveNewCpuStats = true;
mProcessCpuTracker.update();
//Slog.i(TAG, mProcessCpu.printCurrentState());
//Slog.i(TAG, "Total CPU usage: "
// + mProcessCpu.getTotalCpuPercent() + "%");
// Slog the cpu usage if the property is set.
if ("true".equals(SystemProperties.get("events.cpu"))) {
int user = mProcessCpuTracker.getLastUserTime();
int system = mProcessCpuTracker.getLastSystemTime();
int iowait = mProcessCpuTracker.getLastIoWaitTime();
int irq = mProcessCpuTracker.getLastIrqTime();
int softIrq = mProcessCpuTracker.getLastSoftIrqTime();
int idle = mProcessCpuTracker.getLastIdleTime();
int total = user + system + iowait + irq + softIrq + idle;
if (total == 0) total = 1;
EventLog.writeEvent(EventLogTags.CPU,
((user+system+iowait+irq+softIrq) * 100) / total,
(user * 100) / total,
(system * 100) / total,
(iowait * 100) / total,
(irq * 100) / total,
(softIrq * 100) / total);
}
}
long[] cpuSpeedTimes = mProcessCpuTracker.getLastCpuSpeedTimes();
final BatteryStatsImpl bstats = mBatteryStatsService.getActiveStatistics();
synchronized(bstats) {
synchronized(mPidsSelfLocked) {
if (haveNewCpuStats) {
if (mOnBattery) {
int perc = bstats.startAddingCpuLocked();
int totalUTime = 0;
int totalSTime = 0;
final int N = mProcessCpuTracker.countStats();
for (int i=0; i= Process.FIRST_APPLICATION_UID) {
BatteryStatsImpl.Uid.Proc ps = st.batteryStats;
if (ps == null) {
st.batteryStats = ps = bstats.getProcessStatsLocked(st.uid,
"(Unknown)");
}
ps.addCpuTimeLocked(st.rel_utime-otherUTime,
st.rel_stime-otherSTime);
ps.addSpeedStepTimes(cpuSpeedTimes);
} else {
BatteryStatsImpl.Uid.Proc ps =
bstats.getProcessStatsLocked(st.name, st.pid);
if (ps != null) {
ps.addCpuTimeLocked(st.rel_utime-otherUTime,
st.rel_stime-otherSTime);
ps.addSpeedStepTimes(cpuSpeedTimes);
}
}
}
bstats.finishAddingCpuLocked(perc, totalUTime,
totalSTime, cpuSpeedTimes);
}
}
}
if (mLastWriteTime < (now-BATTERY_STATS_TIME)) {
mLastWriteTime = now;
mBatteryStatsService.getActiveStatistics().writeAsyncLocked();
}
}
}
}
@Override
public void batteryNeedsCpuUpdate() {
updateCpuStatsNow();
}
@Override
public void batteryPowerChanged(boolean onBattery) {
// When plugging in, update the CPU stats first before changing
// the plug state.
updateCpuStatsNow();
synchronized (this) {
synchronized(mPidsSelfLocked) {
mOnBattery = DEBUG_POWER ? true : onBattery;
}
}
}
/**
* Initialize the application bind args. These are passed to each
* process when the bindApplication() IPC is sent to the process. They're
* lazily setup to make sure the services are running when they're asked for.
*/
private HashMap getCommonServicesLocked() {
if (mAppBindArgs == null) {
mAppBindArgs = new HashMap();
// Setup the application init args
mAppBindArgs.put("package", ServiceManager.getService("package"));
mAppBindArgs.put("window", ServiceManager.getService("window"));
mAppBindArgs.put(Context.ALARM_SERVICE,
ServiceManager.getService(Context.ALARM_SERVICE));
}
return mAppBindArgs;
}
final void setFocusedActivityLocked(ActivityRecord r) {
if (mFocusedActivity != r) {
if (DEBUG_FOCUS) Slog.d(TAG, "setFocusedActivityLocked: r=" + r);
mFocusedActivity = r;
mStackSupervisor.setFocusedStack(r);
if (r != null) {
mWindowManager.setFocusedApp(r.appToken, true);
}
applyUpdateLockStateLocked(r);
}
}
@Override
public void setFocusedStack(int stackId) {
if (DEBUG_FOCUS) Slog.d(TAG, "setFocusedStack: stackId=" + stackId);
synchronized (ActivityManagerService.this) {
ActivityStack stack = mStackSupervisor.getStack(stackId);
if (stack != null) {
ActivityRecord r = stack.topRunningActivityLocked(null);
if (r != null) {
setFocusedActivityLocked(r);
}
}
}
}
@Override
public void notifyActivityDrawn(IBinder token) {
if (DEBUG_VISBILITY) Slog.d(TAG, "notifyActivityDrawn: token=" + token);
synchronized (this) {
ActivityRecord r= mStackSupervisor.isInAnyStackLocked(token);
if (r != null) {
r.task.stack.notifyActivityDrawnLocked(r);
}
}
}
final void applyUpdateLockStateLocked(ActivityRecord r) {
// Modifications to the UpdateLock state are done on our handler, outside
// the activity manager's locks. The new state is determined based on the
// state *now* of the relevant activity record. The object is passed to
// the handler solely for logging detail, not to be consulted/modified.
final boolean nextState = r != null && r.immersive;
mHandler.sendMessage(
mHandler.obtainMessage(IMMERSIVE_MODE_LOCK_MSG, (nextState) ? 1 : 0, 0, r));
}
final void showAskCompatModeDialogLocked(ActivityRecord r) {
Message msg = Message.obtain();
msg.what = SHOW_COMPAT_MODE_DIALOG_MSG;
msg.obj = r.task.askedCompatMode ? null : r;
mHandler.sendMessage(msg);
}
private final int updateLruProcessInternalLocked(ProcessRecord app, long now, int index,
String what, Object obj, ProcessRecord srcApp) {
app.lastActivityTime = now;
if (app.activities.size() > 0) {
// Don't want to touch dependent processes that are hosting activities.
return index;
}
int lrui = mLruProcesses.lastIndexOf(app);
if (lrui < 0) {
Log.wtf(TAG, "Adding dependent process " + app + " not on LRU list: "
+ what + " " + obj + " from " + srcApp);
return index;
}
if (lrui >= index) {
// Don't want to cause this to move dependent processes *back* in the
// list as if they were less frequently used.
return index;
}
if (lrui >= mLruProcessActivityStart) {
// Don't want to touch dependent processes that are hosting activities.
return index;
}
mLruProcesses.remove(lrui);
if (index > 0) {
index--;
}
mLruProcesses.add(index, app);
return index;
}
final void removeLruProcessLocked(ProcessRecord app) {
int lrui = mLruProcesses.lastIndexOf(app);
if (lrui >= 0) {
if (lrui <= mLruProcessActivityStart) {
mLruProcessActivityStart--;
}
if (lrui <= mLruProcessServiceStart) {
mLruProcessServiceStart--;
}
mLruProcesses.remove(lrui);
}
}
final void updateLruProcessLocked(ProcessRecord app, boolean oomAdj, boolean activityChange) {
final boolean hasActivity = app.activities.size() > 0;
final boolean hasService = false; // not impl yet. app.services.size() > 0;
if (!activityChange && hasActivity) {
// The process has activties, so we are only going to allow activity-based
// adjustments move it. It should be kept in the front of the list with other
// processes that have activities, and we don't want those to change their
// order except due to activity operations.
return;
}
mLruSeq++;
final long now = SystemClock.uptimeMillis();
app.lastActivityTime = now;
int lrui = mLruProcesses.lastIndexOf(app);
if (lrui >= 0) {
if (lrui < mLruProcessActivityStart) {
mLruProcessActivityStart--;
}
if (lrui < mLruProcessServiceStart) {
mLruProcessServiceStart--;
}
mLruProcesses.remove(lrui);
}
int nextIndex;
if (hasActivity) {
// Process has activities, put it at the very tipsy-top.
mLruProcesses.add(app);
nextIndex = mLruProcessActivityStart;
} else if (hasService) {
// Process has services, put it at the top of the service list.
mLruProcesses.add(mLruProcessActivityStart, app);
nextIndex = mLruProcessServiceStart;
mLruProcessActivityStart++;
} else {
// Process not otherwise of interest, it goes to the top of the non-service area.
mLruProcesses.add(mLruProcessServiceStart, app);
nextIndex = mLruProcessServiceStart-1;
mLruProcessActivityStart++;
mLruProcessServiceStart++;
}
// If the app is currently using a content provider or service,
// bump those processes as well.
for (int j=app.connections.size()-1; j>=0; j--) {
ConnectionRecord cr = app.connections.valueAt(j);
if (cr.binding != null && !cr.serviceDead && cr.binding.service != null
&& cr.binding.service.app != null
&& cr.binding.service.app.lruSeq != mLruSeq) {
nextIndex = updateLruProcessInternalLocked(cr.binding.service.app, now, nextIndex,
"service connection", cr, app);
}
}
for (int j=app.conProviders.size()-1; j>=0; j--) {
ContentProviderRecord cpr = app.conProviders.get(j).provider;
if (cpr.proc != null && cpr.proc.lruSeq != mLruSeq) {
nextIndex = updateLruProcessInternalLocked(cpr.proc, now, nextIndex,
"provider reference", cpr, app);
}
}
//Slog.i(TAG, "Putting proc to front: " + app.processName);
if (oomAdj) {
updateOomAdjLocked();
}
}
final ProcessRecord getProcessRecordLocked(String processName, int uid, boolean keepIfLarge) {
if (uid == Process.SYSTEM_UID) {
// The system gets to run in any process. If there are multiple
// processes with the same uid, just pick the first (this
// should never happen).
SparseArray procs = mProcessNames.getMap().get(processName);
if (procs == null) return null;
final int N = procs.size();
for (int i = 0; i < N; i++) {
if (UserHandle.isSameUser(procs.keyAt(i), uid)) return procs.valueAt(i);
}
}
ProcessRecord proc = mProcessNames.get(processName, uid);
if (false && proc != null && !keepIfLarge
&& proc.setProcState >= ActivityManager.PROCESS_STATE_CACHED_EMPTY
&& proc.lastCachedPss >= 4000) {
// Turn this condition on to cause killing to happen regularly, for testing.
if (proc.baseProcessTracker != null) {
proc.baseProcessTracker.reportCachedKill(proc.pkgList, proc.lastCachedPss);
}
killUnneededProcessLocked(proc, Long.toString(proc.lastCachedPss)
+ "k from cached");
} else if (proc != null && !keepIfLarge
&& mLastMemoryLevel > ProcessStats.ADJ_MEM_FACTOR_NORMAL
&& proc.setProcState >= ActivityManager.PROCESS_STATE_CACHED_EMPTY) {
if (DEBUG_PSS) Slog.d(TAG, "May not keep " + proc + ": pss=" + proc.lastCachedPss);
if (proc.lastCachedPss >= mProcessList.getCachedRestoreThresholdKb()) {
if (proc.baseProcessTracker != null) {
proc.baseProcessTracker.reportCachedKill(proc.pkgList, proc.lastCachedPss);
}
killUnneededProcessLocked(proc, Long.toString(proc.lastCachedPss)
+ "k from cached");
}
}
return proc;
}
void ensurePackageDexOpt(String packageName) {
IPackageManager pm = AppGlobals.getPackageManager();
try {
if (pm.performDexOpt(packageName)) {
mDidDexOpt = true;
}
} catch (RemoteException e) {
}
}
boolean isNextTransitionForward() {
int transit = mWindowManager.getPendingAppTransition();
return transit == AppTransition.TRANSIT_ACTIVITY_OPEN
|| transit == AppTransition.TRANSIT_TASK_OPEN
|| transit == AppTransition.TRANSIT_TASK_TO_FRONT;
}
final ProcessRecord startProcessLocked(String processName,
ApplicationInfo info, boolean knownToBeDead, int intentFlags,
String hostingType, ComponentName hostingName, boolean allowWhileBooting,
boolean isolated, boolean keepIfLarge) {
ProcessRecord app;
if (!isolated) {
app = getProcessRecordLocked(processName, info.uid, keepIfLarge);
} else {
// If this is an isolated process, it can't re-use an existing process.
app = null;
}
// We don't have to do anything more if:
// (1) There is an existing application record; and
// (2) The caller doesn't think it is dead, OR there is no thread
// object attached to it so we know it couldn't have crashed; and
// (3) There is a pid assigned to it, so it is either starting or
// already running.
if (DEBUG_PROCESSES) Slog.v(TAG, "startProcess: name=" + processName
+ " app=" + app + " knownToBeDead=" + knownToBeDead
+ " thread=" + (app != null ? app.thread : null)
+ " pid=" + (app != null ? app.pid : -1));
if (app != null && app.pid > 0) {
if (!knownToBeDead || app.thread == null) {
// We already have the app running, or are waiting for it to
// come up (we have a pid but not yet its thread), so keep it.
if (DEBUG_PROCESSES) Slog.v(TAG, "App already running: " + app);
// If this is a new package in the process, add the package to the list
app.addPackage(info.packageName, mProcessStats);
return app;
}
// An application record is attached to a previous process,
// clean it up now.
if (DEBUG_PROCESSES || DEBUG_CLEANUP) Slog.v(TAG, "App died: " + app);
handleAppDiedLocked(app, true, true);
}
String hostingNameStr = hostingName != null
? hostingName.flattenToShortString() : null;
if (!isolated) {
if ((intentFlags&Intent.FLAG_FROM_BACKGROUND) != 0) {
// If we are in the background, then check to see if this process
// is bad. If so, we will just silently fail.
if (mBadProcesses.get(info.processName, info.uid) != null) {
if (DEBUG_PROCESSES) Slog.v(TAG, "Bad process: " + info.uid
+ "/" + info.processName);
return null;
}
} else {
// When the user is explicitly starting a process, then clear its
// crash count so that we won't make it bad until they see at
// least one crash dialog again, and make the process good again
// if it had been bad.
if (DEBUG_PROCESSES) Slog.v(TAG, "Clearing bad process: " + info.uid
+ "/" + info.processName);
mProcessCrashTimes.remove(info.processName, info.uid);
if (mBadProcesses.get(info.processName, info.uid) != null) {
EventLog.writeEvent(EventLogTags.AM_PROC_GOOD,
UserHandle.getUserId(info.uid), info.uid,
info.processName);
mBadProcesses.remove(info.processName, info.uid);
if (app != null) {
app.bad = false;
}
}
}
}
if (app == null) {
app = newProcessRecordLocked(info, processName, isolated);
if (app == null) {
Slog.w(TAG, "Failed making new process record for "
+ processName + "/" + info.uid + " isolated=" + isolated);
return null;
}
mProcessNames.put(processName, app.uid, app);
if (isolated) {
mIsolatedProcesses.put(app.uid, app);
}
} else {
// If this is a new package in the process, add the package to the list
app.addPackage(info.packageName, mProcessStats);
}
// If the system is not ready yet, then hold off on starting this
// process until it is.
if (!mProcessesReady
&& !isAllowedWhileBooting(info)
&& !allowWhileBooting) {
if (!mProcessesOnHold.contains(app)) {
mProcessesOnHold.add(app);
}
if (DEBUG_PROCESSES) Slog.v(TAG, "System not ready, putting on hold: " + app);
return app;
}
startProcessLocked(app, hostingType, hostingNameStr);
return (app.pid != 0) ? app : null;
}
boolean isAllowedWhileBooting(ApplicationInfo ai) {
return (ai.flags&ApplicationInfo.FLAG_PERSISTENT) != 0;
}
private final void startProcessLocked(ProcessRecord app,
String hostingType, String hostingNameStr) {
if (app.pid > 0 && app.pid != MY_PID) {
synchronized (mPidsSelfLocked) {
mPidsSelfLocked.remove(app.pid);
mHandler.removeMessages(PROC_START_TIMEOUT_MSG, app);
}
app.setPid(0);
}
if (DEBUG_PROCESSES && mProcessesOnHold.contains(app)) Slog.v(TAG,
"startProcessLocked removing on hold: " + app);
mProcessesOnHold.remove(app);
updateCpuStats();
try {
int uid = app.uid;
int[] gids = null;
int mountExternal = Zygote.MOUNT_EXTERNAL_NONE;
if (!app.isolated) {
int[] permGids = null;
try {
final PackageManager pm = mContext.getPackageManager();
permGids = pm.getPackageGids(app.info.packageName);
if (Environment.isExternalStorageEmulated()) {
if (pm.checkPermission(
android.Manifest.permission.ACCESS_ALL_EXTERNAL_STORAGE,
app.info.packageName) == PERMISSION_GRANTED) {
mountExternal = Zygote.MOUNT_EXTERNAL_MULTIUSER_ALL;
} else {
mountExternal = Zygote.MOUNT_EXTERNAL_MULTIUSER;
}
}
} catch (PackageManager.NameNotFoundException e) {
Slog.w(TAG, "Unable to retrieve gids", e);
}
/*
* Add shared application GID so applications can share some
* resources like shared libraries
*/
if (permGids == null) {
gids = new int[1];
} else {
gids = new int[permGids.length + 1];
System.arraycopy(permGids, 0, gids, 1, permGids.length);
}
gids[0] = UserHandle.getSharedAppGid(UserHandle.getAppId(uid));
}
if (mFactoryTest != SystemServer.FACTORY_TEST_OFF) {
if (mFactoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL
&& mTopComponent != null
&& app.processName.equals(mTopComponent.getPackageName())) {
uid = 0;
}
if (mFactoryTest == SystemServer.FACTORY_TEST_HIGH_LEVEL
&& (app.info.flags&ApplicationInfo.FLAG_FACTORY_TEST) != 0) {
uid = 0;
}
}
int debugFlags = 0;
if ((app.info.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0) {
debugFlags |= Zygote.DEBUG_ENABLE_DEBUGGER;
// Also turn on CheckJNI for debuggable apps. It's quite
// awkward to turn on otherwise.
debugFlags |= Zygote.DEBUG_ENABLE_CHECKJNI;
}
// Run the app in safe mode if its manifest requests so or the
// system is booted in safe mode.
if ((app.info.flags & ApplicationInfo.FLAG_VM_SAFE_MODE) != 0 ||
Zygote.systemInSafeMode == true) {
debugFlags |= Zygote.DEBUG_ENABLE_SAFEMODE;
}
if ("1".equals(SystemProperties.get("debug.checkjni"))) {
debugFlags |= Zygote.DEBUG_ENABLE_CHECKJNI;
}
if ("1".equals(SystemProperties.get("debug.jni.logging"))) {
debugFlags |= Zygote.DEBUG_ENABLE_JNI_LOGGING;
}
if ("1".equals(SystemProperties.get("debug.assert"))) {
debugFlags |= Zygote.DEBUG_ENABLE_ASSERT;
}
// Start the process. It will either succeed and return a result containing
// the PID of the new process, or else throw a RuntimeException.
Process.ProcessStartResult startResult = Process.start("android.app.ActivityThread",
app.processName, uid, uid, gids, debugFlags, mountExternal,
app.info.targetSdkVersion, app.info.seinfo, null);
BatteryStatsImpl bs = app.batteryStats.getBatteryStats();
synchronized (bs) {
if (bs.isOnBattery()) {
app.batteryStats.incStartsLocked();
}
}
EventLog.writeEvent(EventLogTags.AM_PROC_START,
UserHandle.getUserId(uid), startResult.pid, uid,
app.processName, hostingType,
hostingNameStr != null ? hostingNameStr : "");
if (app.persistent) {
Watchdog.getInstance().processStarted(app.processName, startResult.pid);
}
StringBuilder buf = mStringBuilder;
buf.setLength(0);
buf.append("Start proc ");
buf.append(app.processName);
buf.append(" for ");
buf.append(hostingType);
if (hostingNameStr != null) {
buf.append(" ");
buf.append(hostingNameStr);
}
buf.append(": pid=");
buf.append(startResult.pid);
buf.append(" uid=");
buf.append(uid);
buf.append(" gids={");
if (gids != null) {
for (int gi=0; gi ris = mSelf.mContext.getPackageManager()
.queryIntentActivities(intent, PackageManager.GET_META_DATA);
// We don't allow third party apps to replace this.
ResolveInfo ri = null;
for (int i=0; ris != null && i 0) {
i--;
final IProcessObserver observer = mProcessObservers.getBroadcastItem(i);
if (observer != null) {
try {
for (int j=0; j 0) {
i--;
final IProcessObserver observer = mProcessObservers.getBroadcastItem(i);
if (observer != null) {
try {
observer.onProcessDied(pid, uid);
} catch (RemoteException e) {
}
}
}
mProcessObservers.finishBroadcast();
}
final void doPendingActivityLaunchesLocked(boolean doResume) {
final int N = mPendingActivityLaunches.size();
if (N <= 0) {
return;
}
for (int i=0; i resolves =
AppGlobals.getPackageManager().queryIntentActivities(
intent, r.resolvedType,
PackageManager.MATCH_DEFAULT_ONLY | STOCK_PM_FLAGS,
UserHandle.getCallingUserId());
// Look for the original activity in the list...
final int N = resolves != null ? resolves.size() : 0;
for (int i=0; i 0 && mRecentTasks.get(0) == task) {
return;
}
// Remove any existing entries that are the same kind of task.
for (int i=0; i= MAX_RECENT_TASKS) {
mRecentTasks.remove(N-1).disposeThumbnail();
}
mRecentTasks.add(0, task);
}
@Override
public void reportActivityFullyDrawn(IBinder token) {
synchronized (this) {
ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return;
}
r.reportFullyDrawnLocked();
}
}
@Override
public void setRequestedOrientation(IBinder token, int requestedOrientation) {
synchronized (this) {
ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return;
}
final long origId = Binder.clearCallingIdentity();
mWindowManager.setAppOrientation(r.appToken, requestedOrientation);
Configuration config = mWindowManager.updateOrientationFromAppTokens(
mConfiguration, r.mayFreezeScreenLocked(r.app) ? r.appToken : null);
if (config != null) {
r.frozenBeforeDestroy = true;
if (!updateConfigurationLocked(config, r, false, false)) {
mStackSupervisor.resumeTopActivitiesLocked();
}
}
Binder.restoreCallingIdentity(origId);
}
}
@Override
public int getRequestedOrientation(IBinder token) {
synchronized (this) {
ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
}
return mWindowManager.getAppOrientation(r.appToken);
}
}
/**
* This is the internal entry point for handling Activity.finish().
*
* @param token The Binder token referencing the Activity we want to finish.
* @param resultCode Result code, if any, from this Activity.
* @param resultData Result data (Intent), if any, from this Activity.
*
* @return Returns true if the activity successfully finished, or false if it is still running.
*/
@Override
public final boolean finishActivity(IBinder token, int resultCode, Intent resultData) {
// Refuse possible leaked file descriptors
if (resultData != null && resultData.hasFileDescriptors() == true) {
throw new IllegalArgumentException("File descriptors passed in Intent");
}
synchronized(this) {
ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return true;
}
if (mController != null) {
// Find the first activity that is not finishing.
ActivityRecord next = r.task.stack.topRunningActivityLocked(token, 0);
if (next != null) {
// ask watcher if this is allowed
boolean resumeOK = true;
try {
resumeOK = mController.activityResuming(next.packageName);
} catch (RemoteException e) {
mController = null;
Watchdog.getInstance().setActivityController(null);
}
if (!resumeOK) {
return false;
}
}
}
final long origId = Binder.clearCallingIdentity();
boolean res = r.task.stack.requestFinishActivityLocked(token, resultCode,
resultData, "app-request", true);
Binder.restoreCallingIdentity(origId);
return res;
}
}
@Override
public final void finishHeavyWeightApp() {
if (checkCallingPermission(android.Manifest.permission.FORCE_STOP_PACKAGES)
!= PackageManager.PERMISSION_GRANTED) {
String msg = "Permission Denial: finishHeavyWeightApp() from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid()
+ " requires " + android.Manifest.permission.FORCE_STOP_PACKAGES;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
synchronized(this) {
if (mHeavyWeightProcess == null) {
return;
}
ArrayList activities = new ArrayList(
mHeavyWeightProcess.activities);
for (int i=0; i=0; i--) {
ProcessRecord rec = mLruProcesses.get(i);
if (rec.thread != null && rec.thread.asBinder() == threadBinder) {
return i;
}
}
return -1;
}
final ProcessRecord getRecordForAppLocked(
IApplicationThread thread) {
if (thread == null) {
return null;
}
int appIndex = getLRURecordIndexForAppLocked(thread);
return appIndex >= 0 ? mLruProcesses.get(appIndex) : null;
}
final void doLowMemReportIfNeededLocked(ProcessRecord dyingProc) {
// If there are no longer any background processes running,
// and the app that died was not running instrumentation,
// then tell everyone we are now low on memory.
boolean haveBg = false;
for (int i=mLruProcesses.size()-1; i>=0; i--) {
ProcessRecord rec = mLruProcesses.get(i);
if (rec.thread != null
&& rec.setProcState >= ActivityManager.PROCESS_STATE_CACHED_ACTIVITY) {
haveBg = true;
break;
}
}
if (!haveBg) {
boolean doReport = "1".equals(SystemProperties.get(SYSTEM_DEBUGGABLE, "0"));
if (doReport) {
long now = SystemClock.uptimeMillis();
if (now < (mLastMemUsageReportTime+5*60*1000)) {
doReport = false;
} else {
mLastMemUsageReportTime = now;
}
}
final ArrayList memInfos
= doReport ? new ArrayList(mLruProcesses.size()) : null;
EventLog.writeEvent(EventLogTags.AM_LOW_MEMORY, mLruProcesses.size());
long now = SystemClock.uptimeMillis();
for (int i=mLruProcesses.size()-1; i>=0; i--) {
ProcessRecord rec = mLruProcesses.get(i);
if (rec == dyingProc || rec.thread == null) {
continue;
}
if (doReport) {
memInfos.add(new ProcessMemInfo(rec.processName, rec.pid, rec.setAdj,
rec.setProcState, rec.adjType, rec.makeAdjReason()));
}
if ((rec.lastLowMemory+GC_MIN_INTERVAL) <= now) {
// The low memory report is overriding any current
// state for a GC request. Make sure to do
// heavy/important/visible/foreground processes first.
if (rec.setAdj <= ProcessList.HEAVY_WEIGHT_APP_ADJ) {
rec.lastRequestedGc = 0;
} else {
rec.lastRequestedGc = rec.lastLowMemory;
}
rec.reportLowMemory = true;
rec.lastLowMemory = now;
mProcessesToGc.remove(rec);
addProcessToGcListLocked(rec);
}
}
if (doReport) {
Message msg = mHandler.obtainMessage(REPORT_MEM_USAGE_MSG, memInfos);
mHandler.sendMessage(msg);
}
scheduleAppGcsLocked();
}
}
final void appDiedLocked(ProcessRecord app, int pid,
IApplicationThread thread) {
BatteryStatsImpl stats = mBatteryStatsService.getActiveStatistics();
synchronized (stats) {
stats.noteProcessDiedLocked(app.info.uid, pid);
}
// Clean up already done if the process has been re-started.
if (app.pid == pid && app.thread != null &&
app.thread.asBinder() == thread.asBinder()) {
boolean doLowMem = app.instrumentationClass == null;
boolean doOomAdj = doLowMem;
if (!app.killedByAm) {
Slog.i(TAG, "Process " + app.processName + " (pid " + pid
+ ") has died.");
mAllowLowerMemLevel = true;
} else {
// Note that we always want to do oom adj to update our state with the
// new number of procs.
mAllowLowerMemLevel = false;
doLowMem = false;
}
EventLog.writeEvent(EventLogTags.AM_PROC_DIED, app.userId, app.pid, app.processName);
if (DEBUG_CLEANUP) Slog.v(
TAG, "Dying app: " + app + ", pid: " + pid
+ ", thread: " + thread.asBinder());
handleAppDiedLocked(app, false, true);
if (doOomAdj) {
updateOomAdjLocked();
}
if (doLowMem) {
doLowMemReportIfNeededLocked(app);
}
} else if (app.pid != pid) {
// A new process has already been started.
Slog.i(TAG, "Process " + app.processName + " (pid " + pid
+ ") has died and restarted (pid " + app.pid + ").");
EventLog.writeEvent(EventLogTags.AM_PROC_DIED, app.userId, app.pid, app.processName);
} else if (DEBUG_PROCESSES) {
Slog.d(TAG, "Received spurious death notification for thread "
+ thread.asBinder());
}
}
/**
* If a stack trace dump file is configured, dump process stack traces.
* @param clearTraces causes the dump file to be erased prior to the new
* traces being written, if true; when false, the new traces will be
* appended to any existing file content.
* @param firstPids of dalvik VM processes to dump stack traces for first
* @param lastPids of dalvik VM processes to dump stack traces for last
* @param nativeProcs optional list of native process names to dump stack crawls
* @return file containing stack traces, or null if no dump file is configured
*/
public static File dumpStackTraces(boolean clearTraces, ArrayList firstPids,
ProcessCpuTracker processCpuTracker, SparseArray lastPids, String[] nativeProcs) {
String tracesPath = SystemProperties.get("dalvik.vm.stack-trace-file", null);
if (tracesPath == null || tracesPath.length() == 0) {
return null;
}
File tracesFile = new File(tracesPath);
try {
File tracesDir = tracesFile.getParentFile();
if (!tracesDir.exists()) {
tracesFile.mkdirs();
if (!SELinux.restorecon(tracesDir)) {
return null;
}
}
FileUtils.setPermissions(tracesDir.getPath(), 0775, -1, -1); // drwxrwxr-x
if (clearTraces && tracesFile.exists()) tracesFile.delete();
tracesFile.createNewFile();
FileUtils.setPermissions(tracesFile.getPath(), 0666, -1, -1); // -rw-rw-rw-
} catch (IOException e) {
Slog.w(TAG, "Unable to prepare ANR traces file: " + tracesPath, e);
return null;
}
dumpStackTraces(tracesPath, firstPids, processCpuTracker, lastPids, nativeProcs);
return tracesFile;
}
private static void dumpStackTraces(String tracesPath, ArrayList firstPids,
ProcessCpuTracker processCpuTracker, SparseArray lastPids, String[] nativeProcs) {
// Use a FileObserver to detect when traces finish writing.
// The order of traces is considered important to maintain for legibility.
FileObserver observer = new FileObserver(tracesPath, FileObserver.CLOSE_WRITE) {
@Override
public synchronized void onEvent(int event, String path) { notify(); }
};
try {
observer.startWatching();
// First collect all of the stacks of the most important pids.
if (firstPids != null) {
try {
int num = firstPids.size();
for (int i = 0; i < num; i++) {
synchronized (observer) {
Process.sendSignal(firstPids.get(i), Process.SIGNAL_QUIT);
observer.wait(200); // Wait for write-close, give up after 200msec
}
}
} catch (InterruptedException e) {
Log.wtf(TAG, e);
}
}
// Next measure CPU usage.
if (processCpuTracker != null) {
processCpuTracker.init();
System.gc();
processCpuTracker.update();
try {
synchronized (processCpuTracker) {
processCpuTracker.wait(500); // measure over 1/2 second.
}
} catch (InterruptedException e) {
}
processCpuTracker.update();
// We'll take the stack crawls of just the top apps using CPU.
final int N = processCpuTracker.countWorkingStats();
int numProcs = 0;
for (int i=0; i= 0) {
numProcs++;
try {
synchronized (observer) {
Process.sendSignal(stats.pid, Process.SIGNAL_QUIT);
observer.wait(200); // Wait for write-close, give up after 200msec
}
} catch (InterruptedException e) {
Log.wtf(TAG, e);
}
}
}
}
} finally {
observer.stopWatching();
}
if (nativeProcs != null) {
int[] pids = Process.getPidsForCommands(nativeProcs);
if (pids != null) {
for (int pid : pids) {
Debug.dumpNativeBacktraceToFile(pid, tracesPath);
}
}
}
}
final void logAppTooSlow(ProcessRecord app, long startTime, String msg) {
if (true || IS_USER_BUILD) {
return;
}
String tracesPath = SystemProperties.get("dalvik.vm.stack-trace-file", null);
if (tracesPath == null || tracesPath.length() == 0) {
return;
}
StrictMode.ThreadPolicy oldPolicy = StrictMode.allowThreadDiskReads();
StrictMode.allowThreadDiskWrites();
try {
final File tracesFile = new File(tracesPath);
final File tracesDir = tracesFile.getParentFile();
final File tracesTmp = new File(tracesDir, "__tmp__");
try {
if (!tracesDir.exists()) {
tracesFile.mkdirs();
if (!SELinux.restorecon(tracesDir.getPath())) {
return;
}
}
FileUtils.setPermissions(tracesDir.getPath(), 0775, -1, -1); // drwxrwxr-x
if (tracesFile.exists()) {
tracesTmp.delete();
tracesFile.renameTo(tracesTmp);
}
StringBuilder sb = new StringBuilder();
Time tobj = new Time();
tobj.set(System.currentTimeMillis());
sb.append(tobj.format("%Y-%m-%d %H:%M:%S"));
sb.append(": ");
TimeUtils.formatDuration(SystemClock.uptimeMillis()-startTime, sb);
sb.append(" since ");
sb.append(msg);
FileOutputStream fos = new FileOutputStream(tracesFile);
fos.write(sb.toString().getBytes());
if (app == null) {
fos.write("\n*** No application process!".getBytes());
}
fos.close();
FileUtils.setPermissions(tracesFile.getPath(), 0666, -1, -1); // -rw-rw-rw-
} catch (IOException e) {
Slog.w(TAG, "Unable to prepare slow app traces file: " + tracesPath, e);
return;
}
if (app != null) {
ArrayList firstPids = new ArrayList();
firstPids.add(app.pid);
dumpStackTraces(tracesPath, firstPids, null, null, null);
}
File lastTracesFile = null;
File curTracesFile = null;
for (int i=9; i>=0; i--) {
String name = String.format(Locale.US, "slow%02d.txt", i);
curTracesFile = new File(tracesDir, name);
if (curTracesFile.exists()) {
if (lastTracesFile != null) {
curTracesFile.renameTo(lastTracesFile);
} else {
curTracesFile.delete();
}
}
lastTracesFile = curTracesFile;
}
tracesFile.renameTo(curTracesFile);
if (tracesTmp.exists()) {
tracesTmp.renameTo(tracesFile);
}
} finally {
StrictMode.setThreadPolicy(oldPolicy);
}
}
final void appNotResponding(ProcessRecord app, ActivityRecord activity,
ActivityRecord parent, boolean aboveSystem, final String annotation) {
ArrayList firstPids = new ArrayList(5);
SparseArray lastPids = new SparseArray(20);
if (mController != null) {
try {
// 0 == continue, -1 = kill process immediately
int res = mController.appEarlyNotResponding(app.processName, app.pid, annotation);
if (res < 0 && app.pid != MY_PID) Process.killProcess(app.pid);
} catch (RemoteException e) {
mController = null;
Watchdog.getInstance().setActivityController(null);
}
}
long anrTime = SystemClock.uptimeMillis();
if (MONITOR_CPU_USAGE) {
updateCpuStatsNow();
}
synchronized (this) {
// PowerManager.reboot() can block for a long time, so ignore ANRs while shutting down.
if (mShuttingDown) {
Slog.i(TAG, "During shutdown skipping ANR: " + app + " " + annotation);
return;
} else if (app.notResponding) {
Slog.i(TAG, "Skipping duplicate ANR: " + app + " " + annotation);
return;
} else if (app.crashing) {
Slog.i(TAG, "Crashing app skipping ANR: " + app + " " + annotation);
return;
}
// In case we come through here for the same app before completing
// this one, mark as anring now so we will bail out.
app.notResponding = true;
// Log the ANR to the event log.
EventLog.writeEvent(EventLogTags.AM_ANR, app.userId, app.pid,
app.processName, app.info.flags, annotation);
// Dump thread traces as quickly as we can, starting with "interesting" processes.
firstPids.add(app.pid);
int parentPid = app.pid;
if (parent != null && parent.app != null && parent.app.pid > 0) parentPid = parent.app.pid;
if (parentPid != app.pid) firstPids.add(parentPid);
if (MY_PID != app.pid && MY_PID != parentPid) firstPids.add(MY_PID);
for (int i = mLruProcesses.size() - 1; i >= 0; i--) {
ProcessRecord r = mLruProcesses.get(i);
if (r != null && r.thread != null) {
int pid = r.pid;
if (pid > 0 && pid != app.pid && pid != parentPid && pid != MY_PID) {
if (r.persistent) {
firstPids.add(pid);
} else {
lastPids.put(pid, Boolean.TRUE);
}
}
}
}
}
// Log the ANR to the main log.
StringBuilder info = new StringBuilder();
info.setLength(0);
info.append("ANR in ").append(app.processName);
if (activity != null && activity.shortComponentName != null) {
info.append(" (").append(activity.shortComponentName).append(")");
}
info.append("\n");
info.append("PID: ").append(app.pid).append("\n");
if (annotation != null) {
info.append("Reason: ").append(annotation).append("\n");
}
if (parent != null && parent != activity) {
info.append("Parent: ").append(parent.shortComponentName).append("\n");
}
final ProcessCpuTracker processCpuTracker = new ProcessCpuTracker(true);
File tracesFile = dumpStackTraces(true, firstPids, processCpuTracker, lastPids, null);
String cpuInfo = null;
if (MONITOR_CPU_USAGE) {
updateCpuStatsNow();
synchronized (mProcessCpuThread) {
cpuInfo = mProcessCpuTracker.printCurrentState(anrTime);
}
info.append(processCpuTracker.printCurrentLoad());
info.append(cpuInfo);
}
info.append(processCpuTracker.printCurrentState(anrTime));
Slog.e(TAG, info.toString());
if (tracesFile == null) {
// There is no trace file, so dump (only) the alleged culprit's threads to the log
Process.sendSignal(app.pid, Process.SIGNAL_QUIT);
}
addErrorToDropBox("anr", app, app.processName, activity, parent, annotation,
cpuInfo, tracesFile, null);
if (mController != null) {
try {
// 0 == show dialog, 1 = keep waiting, -1 = kill process immediately
int res = mController.appNotResponding(app.processName, app.pid, info.toString());
if (res != 0) {
if (res < 0 && app.pid != MY_PID) {
Process.killProcess(app.pid);
} else {
synchronized (this) {
mServices.scheduleServiceTimeoutLocked(app);
}
}
return;
}
} catch (RemoteException e) {
mController = null;
Watchdog.getInstance().setActivityController(null);
}
}
// Unless configured otherwise, swallow ANRs in background processes & kill the process.
boolean showBackground = Settings.Secure.getInt(mContext.getContentResolver(),
Settings.Secure.ANR_SHOW_BACKGROUND, 0) != 0;
synchronized (this) {
if (!showBackground && !app.isInterestingToUserLocked() && app.pid != MY_PID) {
killUnneededProcessLocked(app, "background ANR");
return;
}
// Set the app's notResponding state, and look up the errorReportReceiver
makeAppNotRespondingLocked(app,
activity != null ? activity.shortComponentName : null,
annotation != null ? "ANR " + annotation : "ANR",
info.toString());
// Bring up the infamous App Not Responding dialog
Message msg = Message.obtain();
HashMap map = new HashMap();
msg.what = SHOW_NOT_RESPONDING_MSG;
msg.obj = map;
msg.arg1 = aboveSystem ? 1 : 0;
map.put("app", app);
if (activity != null) {
map.put("activity", activity);
}
mHandler.sendMessage(msg);
}
}
final void showLaunchWarningLocked(final ActivityRecord cur, final ActivityRecord next) {
if (!mLaunchWarningShown) {
mLaunchWarningShown = true;
mHandler.post(new Runnable() {
@Override
public void run() {
synchronized (ActivityManagerService.this) {
final Dialog d = new LaunchWarningWindow(mContext, cur, next);
d.show();
mHandler.postDelayed(new Runnable() {
@Override
public void run() {
synchronized (ActivityManagerService.this) {
d.dismiss();
mLaunchWarningShown = false;
}
}
}, 4000);
}
}
});
}
}
@Override
public boolean clearApplicationUserData(final String packageName,
final IPackageDataObserver observer, int userId) {
enforceNotIsolatedCaller("clearApplicationUserData");
int uid = Binder.getCallingUid();
int pid = Binder.getCallingPid();
userId = handleIncomingUser(pid, uid,
userId, false, true, "clearApplicationUserData", null);
long callingId = Binder.clearCallingIdentity();
try {
IPackageManager pm = AppGlobals.getPackageManager();
int pkgUid = -1;
synchronized(this) {
try {
pkgUid = pm.getPackageUid(packageName, userId);
} catch (RemoteException e) {
}
if (pkgUid == -1) {
Slog.w(TAG, "Invalid packageName: " + packageName);
if (observer != null) {
try {
observer.onRemoveCompleted(packageName, false);
} catch (RemoteException e) {
Slog.i(TAG, "Observer no longer exists.");
}
}
return false;
}
if (uid == pkgUid || checkComponentPermission(
android.Manifest.permission.CLEAR_APP_USER_DATA,
pid, uid, -1, true)
== PackageManager.PERMISSION_GRANTED) {
forceStopPackageLocked(packageName, pkgUid, "clear data");
} else {
throw new SecurityException(pid+" does not have permission:"+
android.Manifest.permission.CLEAR_APP_USER_DATA+" to clear data" +
"for process:"+packageName);
}
}
try {
// Clear application user data
pm.clearApplicationUserData(packageName, observer, userId);
// Remove all permissions granted from/to this package
removeUriPermissionsForPackageLocked(packageName, userId, true);
Intent intent = new Intent(Intent.ACTION_PACKAGE_DATA_CLEARED,
Uri.fromParts("package", packageName, null));
intent.putExtra(Intent.EXTRA_UID, pkgUid);
broadcastIntentInPackage("android", Process.SYSTEM_UID, intent,
null, null, 0, null, null, null, false, false, userId);
} catch (RemoteException e) {
}
} finally {
Binder.restoreCallingIdentity(callingId);
}
return true;
}
@Override
public void killBackgroundProcesses(final String packageName, int userId) {
if (checkCallingPermission(android.Manifest.permission.KILL_BACKGROUND_PROCESSES)
!= PackageManager.PERMISSION_GRANTED &&
checkCallingPermission(android.Manifest.permission.RESTART_PACKAGES)
!= PackageManager.PERMISSION_GRANTED) {
String msg = "Permission Denial: killBackgroundProcesses() from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid()
+ " requires " + android.Manifest.permission.KILL_BACKGROUND_PROCESSES;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
userId = handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(),
userId, true, true, "killBackgroundProcesses", null);
long callingId = Binder.clearCallingIdentity();
try {
IPackageManager pm = AppGlobals.getPackageManager();
synchronized(this) {
int appId = -1;
try {
appId = UserHandle.getAppId(pm.getPackageUid(packageName, 0));
} catch (RemoteException e) {
}
if (appId == -1) {
Slog.w(TAG, "Invalid packageName: " + packageName);
return;
}
killPackageProcessesLocked(packageName, appId, userId,
ProcessList.SERVICE_ADJ, false, true, true, false, "kill background");
}
} finally {
Binder.restoreCallingIdentity(callingId);
}
}
@Override
public void killAllBackgroundProcesses() {
if (checkCallingPermission(android.Manifest.permission.KILL_BACKGROUND_PROCESSES)
!= PackageManager.PERMISSION_GRANTED) {
String msg = "Permission Denial: killAllBackgroundProcesses() from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid()
+ " requires " + android.Manifest.permission.KILL_BACKGROUND_PROCESSES;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
long callingId = Binder.clearCallingIdentity();
try {
synchronized(this) {
ArrayList procs = new ArrayList();
final int NP = mProcessNames.getMap().size();
for (int ip=0; ip apps = mProcessNames.getMap().valueAt(ip);
final int NA = apps.size();
for (int ia=0; ia= ProcessList.CACHED_APP_MIN_ADJ) {
app.removed = true;
procs.add(app);
}
}
}
int N = procs.size();
for (int i=0; i= Process.FIRST_APPLICATION_UID) {
ProcessRecord proc;
synchronized (mPidsSelfLocked) {
proc = mPidsSelfLocked.get(pid);
}
if (proc.curRawAdj > ProcessList.PERCEPTIBLE_APP_ADJ) {
Slog.w(TAG, "Ignoring closeSystemDialogs " + reason
+ " from background process " + proc);
return;
}
}
closeSystemDialogsLocked(reason);
}
} finally {
Binder.restoreCallingIdentity(origId);
}
}
void closeSystemDialogsLocked(String reason) {
Intent intent = new Intent(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY
| Intent.FLAG_RECEIVER_FOREGROUND);
if (reason != null) {
intent.putExtra("reason", reason);
}
mWindowManager.closeSystemDialogs(reason);
mStackSupervisor.closeSystemDialogsLocked();
broadcastIntentLocked(null, null, intent, null,
null, 0, null, null, null, AppOpsManager.OP_NONE, false, false, -1,
Process.SYSTEM_UID, UserHandle.USER_ALL);
}
@Override
public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) {
enforceNotIsolatedCaller("getProcessMemoryInfo");
Debug.MemoryInfo[] infos = new Debug.MemoryInfo[pids.length];
for (int i=pids.length-1; i>=0; i--) {
ProcessRecord proc;
int oomAdj;
synchronized (this) {
synchronized (mPidsSelfLocked) {
proc = mPidsSelfLocked.get(pids[i]);
oomAdj = proc != null ? proc.setAdj : 0;
}
}
infos[i] = new Debug.MemoryInfo();
Debug.getMemoryInfo(pids[i], infos[i]);
if (proc != null) {
synchronized (this) {
if (proc.thread != null && proc.setAdj == oomAdj) {
// Record this for posterity if the process has been stable.
proc.baseProcessTracker.addPss(infos[i].getTotalPss(),
infos[i].getTotalUss(), false, proc.pkgList);
}
}
}
}
return infos;
}
@Override
public long[] getProcessPss(int[] pids) {
enforceNotIsolatedCaller("getProcessPss");
long[] pss = new long[pids.length];
for (int i=pids.length-1; i>=0; i--) {
ProcessRecord proc;
int oomAdj;
synchronized (this) {
synchronized (mPidsSelfLocked) {
proc = mPidsSelfLocked.get(pids[i]);
oomAdj = proc != null ? proc.setAdj : 0;
}
}
long[] tmpUss = new long[1];
pss[i] = Debug.getPss(pids[i], tmpUss);
if (proc != null) {
synchronized (this) {
if (proc.thread != null && proc.setAdj == oomAdj) {
// Record this for posterity if the process has been stable.
proc.baseProcessTracker.addPss(pss[i], tmpUss[0], false, proc.pkgList);
}
}
}
}
return pss;
}
@Override
public void killApplicationProcess(String processName, int uid) {
if (processName == null) {
return;
}
int callerUid = Binder.getCallingUid();
// Only the system server can kill an application
if (callerUid == Process.SYSTEM_UID) {
synchronized (this) {
ProcessRecord app = getProcessRecordLocked(processName, uid, true);
if (app != null && app.thread != null) {
try {
app.thread.scheduleSuicide();
} catch (RemoteException e) {
// If the other end already died, then our work here is done.
}
} else {
Slog.w(TAG, "Process/uid not found attempting kill of "
+ processName + " / " + uid);
}
}
} else {
throw new SecurityException(callerUid + " cannot kill app process: " +
processName);
}
}
private void forceStopPackageLocked(final String packageName, int uid, String reason) {
forceStopPackageLocked(packageName, UserHandle.getAppId(uid), false,
false, true, false, UserHandle.getUserId(uid), reason);
Intent intent = new Intent(Intent.ACTION_PACKAGE_RESTARTED,
Uri.fromParts("package", packageName, null));
if (!mProcessesReady) {
intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY
| Intent.FLAG_RECEIVER_FOREGROUND);
}
intent.putExtra(Intent.EXTRA_UID, uid);
intent.putExtra(Intent.EXTRA_USER_HANDLE, UserHandle.getUserId(uid));
broadcastIntentLocked(null, null, intent,
null, null, 0, null, null, null, AppOpsManager.OP_NONE,
false, false,
MY_PID, Process.SYSTEM_UID, UserHandle.getUserId(uid));
}
private void forceStopUserLocked(int userId, String reason) {
forceStopPackageLocked(null, -1, false, false, true, false, userId, reason);
Intent intent = new Intent(Intent.ACTION_USER_STOPPED);
intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY
| Intent.FLAG_RECEIVER_FOREGROUND);
intent.putExtra(Intent.EXTRA_USER_HANDLE, userId);
broadcastIntentLocked(null, null, intent,
null, null, 0, null, null, null, AppOpsManager.OP_NONE,
false, false,
MY_PID, Process.SYSTEM_UID, UserHandle.USER_ALL);
}
private final boolean killPackageProcessesLocked(String packageName, int appId,
int userId, int minOomAdj, boolean callerWillRestart, boolean allowRestart,
boolean doit, boolean evenPersistent, String reason) {
ArrayList procs = new ArrayList();
// Remove all processes this package may have touched: all with the
// same UID (except for the system or root user), and all whose name
// matches the package name.
final String procNamePrefix = packageName != null ? (packageName + ":") : null;
final int NP = mProcessNames.getMap().size();
for (int ip=0; ip apps = mProcessNames.getMap().valueAt(ip);
final int NA = apps.size();
for (int ia=0; ia= 0 && UserHandle.getAppId(app.uid) != appId) {
continue;
}
// Package has been specified, we want to hit all processes
// that match it. We need to qualify this by the processes
// that are running under the specified app and user ID.
} else {
if (UserHandle.getAppId(app.uid) != appId) {
continue;
}
if (userId != UserHandle.USER_ALL && app.userId != userId) {
continue;
}
if (!app.pkgList.containsKey(packageName)) {
continue;
}
}
// Process has passed all conditions, kill it!
if (!doit) {
return true;
}
app.removed = true;
procs.add(app);
}
}
int N = procs.size();
for (int i=0; i 0;
}
private final boolean forceStopPackageLocked(String name, int appId,
boolean callerWillRestart, boolean purgeCache, boolean doit,
boolean evenPersistent, int userId, String reason) {
int i;
int N;
if (userId == UserHandle.USER_ALL && name == null) {
Slog.w(TAG, "Can't force stop all processes of all users, that is insane!");
}
if (appId < 0 && name != null) {
try {
appId = UserHandle.getAppId(
AppGlobals.getPackageManager().getPackageUid(name, 0));
} catch (RemoteException e) {
}
}
if (doit) {
if (name != null) {
Slog.i(TAG, "Force stopping " + name + " appid=" + appId
+ " user=" + userId + ": " + reason);
} else {
Slog.i(TAG, "Force stopping u" + userId + ": " + reason);
}
final ArrayMap> pmap = mProcessCrashTimes.getMap();
for (int ip=pmap.size()-1; ip>=0; ip--) {
SparseArray ba = pmap.valueAt(ip);
for (i=ba.size()-1; i>=0; i--) {
boolean remove = false;
final int entUid = ba.keyAt(i);
if (name != null) {
if (userId == UserHandle.USER_ALL) {
if (UserHandle.getAppId(entUid) == appId) {
remove = true;
}
} else {
if (entUid == UserHandle.getUid(userId, appId)) {
remove = true;
}
}
} else if (UserHandle.getUserId(entUid) == userId) {
remove = true;
}
if (remove) {
ba.removeAt(i);
}
}
if (ba.size() == 0) {
pmap.removeAt(ip);
}
}
}
boolean didSomething = killPackageProcessesLocked(name, appId, userId,
-100, callerWillRestart, true, doit, evenPersistent,
name == null ? ("stop user " + userId) : ("stop " + name));
if (mStackSupervisor.forceStopPackageLocked(name, doit, evenPersistent, userId)) {
if (!doit) {
return true;
}
didSomething = true;
}
if (mServices.forceStopLocked(name, userId, evenPersistent, doit)) {
if (!doit) {
return true;
}
didSomething = true;
}
if (name == null) {
// Remove all sticky broadcasts from this user.
mStickyBroadcasts.remove(userId);
}
ArrayList providers = new ArrayList();
if (mProviderMap.collectForceStopProviders(name, appId, doit, evenPersistent,
userId, providers)) {
if (!doit) {
return true;
}
didSomething = true;
}
N = providers.size();
for (i=0; i 0) {
Iterator> it
= mIntentSenderRecords.values().iterator();
while (it.hasNext()) {
WeakReference wpir = it.next();
if (wpir == null) {
it.remove();
continue;
}
PendingIntentRecord pir = wpir.get();
if (pir == null) {
it.remove();
continue;
}
if (name == null) {
// Stopping user, remove all objects for the user.
if (pir.key.userId != userId) {
// Not the same user, skip it.
continue;
}
} else {
if (UserHandle.getAppId(pir.uid) != appId) {
// Different app id, skip it.
continue;
}
if (userId != UserHandle.USER_ALL && pir.key.userId != userId) {
// Different user, skip it.
continue;
}
if (!pir.key.packageName.equals(name)) {
// Different package, skip it.
continue;
}
}
if (!doit) {
return true;
}
didSomething = true;
it.remove();
pir.canceled = true;
if (pir.key.activity != null) {
pir.key.activity.pendingResults.remove(pir.ref);
}
}
}
}
if (doit) {
if (purgeCache && name != null) {
AttributeCache ac = AttributeCache.instance();
if (ac != null) {
ac.removePackage(name);
}
}
if (mBooted) {
mStackSupervisor.resumeTopActivitiesLocked();
mStackSupervisor.scheduleIdleLocked();
}
}
return didSomething;
}
private final boolean removeProcessLocked(ProcessRecord app,
boolean callerWillRestart, boolean allowRestart, String reason) {
final String name = app.processName;
final int uid = app.uid;
if (DEBUG_PROCESSES) Slog.d(
TAG, "Force removing proc " + app.toShortString() + " (" + name
+ "/" + uid + ")");
mProcessNames.remove(name, uid);
mIsolatedProcesses.remove(app.uid);
if (mHeavyWeightProcess == app) {
mHandler.sendMessage(mHandler.obtainMessage(CANCEL_HEAVY_NOTIFICATION_MSG,
mHeavyWeightProcess.userId, 0));
mHeavyWeightProcess = null;
}
boolean needRestart = false;
if (app.pid > 0 && app.pid != MY_PID) {
int pid = app.pid;
synchronized (mPidsSelfLocked) {
mPidsSelfLocked.remove(pid);
mHandler.removeMessages(PROC_START_TIMEOUT_MSG, app);
}
killUnneededProcessLocked(app, reason);
handleAppDiedLocked(app, true, allowRestart);
removeLruProcessLocked(app);
if (app.persistent && !app.isolated) {
if (!callerWillRestart) {
addAppLocked(app.info, false);
} else {
needRestart = true;
}
}
} else {
mRemovedProcesses.add(app);
}
return needRestart;
}
private final void processStartTimedOutLocked(ProcessRecord app) {
final int pid = app.pid;
boolean gone = false;
synchronized (mPidsSelfLocked) {
ProcessRecord knownApp = mPidsSelfLocked.get(pid);
if (knownApp != null && knownApp.thread == null) {
mPidsSelfLocked.remove(pid);
gone = true;
}
}
if (gone) {
Slog.w(TAG, "Process " + app + " failed to attach");
EventLog.writeEvent(EventLogTags.AM_PROCESS_START_TIMEOUT, app.userId,
pid, app.uid, app.processName);
mProcessNames.remove(app.processName, app.uid);
mIsolatedProcesses.remove(app.uid);
if (mHeavyWeightProcess == app) {
mHandler.sendMessage(mHandler.obtainMessage(CANCEL_HEAVY_NOTIFICATION_MSG,
mHeavyWeightProcess.userId, 0));
mHeavyWeightProcess = null;
}
// Take care of any launching providers waiting for this process.
checkAppInLaunchingProvidersLocked(app, true);
// Take care of any services that are waiting for the process.
mServices.processStartTimedOutLocked(app);
killUnneededProcessLocked(app, "start timeout");
if (mBackupTarget != null && mBackupTarget.app.pid == pid) {
Slog.w(TAG, "Unattached app died before backup, skipping");
try {
IBackupManager bm = IBackupManager.Stub.asInterface(
ServiceManager.getService(Context.BACKUP_SERVICE));
bm.agentDisconnected(app.info.packageName);
} catch (RemoteException e) {
// Can't happen; the backup manager is local
}
}
if (isPendingBroadcastProcessLocked(pid)) {
Slog.w(TAG, "Unattached app died before broadcast acknowledged, skipping");
skipPendingBroadcastLocked(pid);
}
} else {
Slog.w(TAG, "Spurious process start timeout - pid not known for " + app);
}
}
private final boolean attachApplicationLocked(IApplicationThread thread,
int pid) {
// Find the application record that is being attached... either via
// the pid if we are running in multiple processes, or just pull the
// next app record if we are emulating process with anonymous threads.
ProcessRecord app;
if (pid != MY_PID && pid >= 0) {
synchronized (mPidsSelfLocked) {
app = mPidsSelfLocked.get(pid);
}
} else {
app = null;
}
if (app == null) {
Slog.w(TAG, "No pending application record for pid " + pid
+ " (IApplicationThread " + thread + "); dropping process");
EventLog.writeEvent(EventLogTags.AM_DROP_PROCESS, pid);
if (pid > 0 && pid != MY_PID) {
Process.killProcessQuiet(pid);
} else {
try {
thread.scheduleExit();
} catch (Exception e) {
// Ignore exceptions.
}
}
return false;
}
// If this application record is still attached to a previous
// process, clean it up now.
if (app.thread != null) {
handleAppDiedLocked(app, true, true);
}
// Tell the process all about itself.
if (localLOGV) Slog.v(
TAG, "Binding process pid " + pid + " to record " + app);
final String processName = app.processName;
try {
AppDeathRecipient adr = new AppDeathRecipient(
app, pid, thread);
thread.asBinder().linkToDeath(adr, 0);
app.deathRecipient = adr;
} catch (RemoteException e) {
app.resetPackageList(mProcessStats);
startProcessLocked(app, "link fail", processName);
return false;
}
EventLog.writeEvent(EventLogTags.AM_PROC_BOUND, app.userId, app.pid, app.processName);
app.makeActive(thread, mProcessStats);
app.curAdj = app.setAdj = -100;
app.curSchedGroup = app.setSchedGroup = Process.THREAD_GROUP_DEFAULT;
app.forcingToForeground = null;
app.foregroundServices = false;
app.hasShownUi = false;
app.debugging = false;
app.cached = false;
mHandler.removeMessages(PROC_START_TIMEOUT_MSG, app);
boolean normalMode = mProcessesReady || isAllowedWhileBooting(app.info);
List providers = normalMode ? generateApplicationProvidersLocked(app) : null;
if (!normalMode) {
Slog.i(TAG, "Launching preboot mode app: " + app);
}
if (localLOGV) Slog.v(
TAG, "New app record " + app
+ " thread=" + thread.asBinder() + " pid=" + pid);
try {
int testMode = IApplicationThread.DEBUG_OFF;
if (mDebugApp != null && mDebugApp.equals(processName)) {
testMode = mWaitForDebugger
? IApplicationThread.DEBUG_WAIT
: IApplicationThread.DEBUG_ON;
app.debugging = true;
if (mDebugTransient) {
mDebugApp = mOrigDebugApp;
mWaitForDebugger = mOrigWaitForDebugger;
}
}
String profileFile = app.instrumentationProfileFile;
ParcelFileDescriptor profileFd = null;
boolean profileAutoStop = false;
if (mProfileApp != null && mProfileApp.equals(processName)) {
mProfileProc = app;
profileFile = mProfileFile;
profileFd = mProfileFd;
profileAutoStop = mAutoStopProfiler;
}
boolean enableOpenGlTrace = false;
if (mOpenGlTraceApp != null && mOpenGlTraceApp.equals(processName)) {
enableOpenGlTrace = true;
mOpenGlTraceApp = null;
}
// If the app is being launched for restore or full backup, set it up specially
boolean isRestrictedBackupMode = false;
if (mBackupTarget != null && mBackupAppName.equals(processName)) {
isRestrictedBackupMode = (mBackupTarget.backupMode == BackupRecord.RESTORE)
|| (mBackupTarget.backupMode == BackupRecord.RESTORE_FULL)
|| (mBackupTarget.backupMode == BackupRecord.BACKUP_FULL);
}
ensurePackageDexOpt(app.instrumentationInfo != null
? app.instrumentationInfo.packageName
: app.info.packageName);
if (app.instrumentationClass != null) {
ensurePackageDexOpt(app.instrumentationClass.getPackageName());
}
if (DEBUG_CONFIGURATION) Slog.v(TAG, "Binding proc "
+ processName + " with config " + mConfiguration);
ApplicationInfo appInfo = app.instrumentationInfo != null
? app.instrumentationInfo : app.info;
app.compat = compatibilityInfoForPackageLocked(appInfo);
if (profileFd != null) {
profileFd = profileFd.dup();
}
thread.bindApplication(processName, appInfo, providers,
app.instrumentationClass, profileFile, profileFd, profileAutoStop,
app.instrumentationArguments, app.instrumentationWatcher,
app.instrumentationUiAutomationConnection, testMode, enableOpenGlTrace,
isRestrictedBackupMode || !normalMode, app.persistent,
new Configuration(mConfiguration), app.compat, getCommonServicesLocked(),
mCoreSettingsObserver.getCoreSettingsLocked());
updateLruProcessLocked(app, false, false);
app.lastRequestedGc = app.lastLowMemory = SystemClock.uptimeMillis();
} catch (Exception e) {
// todo: Yikes! What should we do? For now we will try to
// start another process, but that could easily get us in
// an infinite loop of restarting processes...
Slog.w(TAG, "Exception thrown during bind!", e);
app.resetPackageList(mProcessStats);
app.unlinkDeathRecipient();
startProcessLocked(app, "bind fail", processName);
return false;
}
// Remove this record from the list of starting applications.
mPersistentStartingProcesses.remove(app);
if (DEBUG_PROCESSES && mProcessesOnHold.contains(app)) Slog.v(TAG,
"Attach application locked removing on hold: " + app);
mProcessesOnHold.remove(app);
boolean badApp = false;
boolean didSomething = false;
// See if the top visible activity is waiting to run in this process...
if (normalMode) {
try {
if (mStackSupervisor.attachApplicationLocked(app, mHeadless)) {
didSomething = true;
}
} catch (Exception e) {
badApp = true;
}
}
// Find any services that should be running in this process...
if (!badApp) {
try {
didSomething |= mServices.attachApplicationLocked(app, processName);
} catch (Exception e) {
badApp = true;
}
}
// Check if a next-broadcast receiver is in this process...
if (!badApp && isPendingBroadcastProcessLocked(pid)) {
try {
didSomething |= sendPendingBroadcastsLocked(app);
} catch (Exception e) {
// If the app died trying to launch the receiver we declare it 'bad'
badApp = true;
}
}
// Check whether the next backup agent is in this process...
if (!badApp && mBackupTarget != null && mBackupTarget.appInfo.uid == app.uid) {
if (DEBUG_BACKUP) Slog.v(TAG, "New app is backup target, launching agent for " + app);
ensurePackageDexOpt(mBackupTarget.appInfo.packageName);
try {
thread.scheduleCreateBackupAgent(mBackupTarget.appInfo,
compatibilityInfoForPackageLocked(mBackupTarget.appInfo),
mBackupTarget.backupMode);
} catch (Exception e) {
Slog.w(TAG, "Exception scheduling backup agent creation: ");
e.printStackTrace();
}
}
if (badApp) {
// todo: Also need to kill application to deal with all
// kinds of exceptions.
handleAppDiedLocked(app, false, true);
return false;
}
if (!didSomething) {
updateOomAdjLocked();
}
return true;
}
@Override
public final void attachApplication(IApplicationThread thread) {
synchronized (this) {
int callingPid = Binder.getCallingPid();
final long origId = Binder.clearCallingIdentity();
attachApplicationLocked(thread, callingPid);
Binder.restoreCallingIdentity(origId);
}
}
@Override
public final void activityIdle(IBinder token, Configuration config, boolean stopProfiling) {
final long origId = Binder.clearCallingIdentity();
synchronized (this) {
ActivityStack stack = ActivityRecord.getStackLocked(token);
if (stack != null) {
ActivityRecord r =
mStackSupervisor.activityIdleInternalLocked(token, false, config);
if (stopProfiling) {
if ((mProfileProc == r.app) && (mProfileFd != null)) {
try {
mProfileFd.close();
} catch (IOException e) {
}
clearProfilerLocked();
}
}
}
}
Binder.restoreCallingIdentity(origId);
}
void enableScreenAfterBoot() {
EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_ENABLE_SCREEN,
SystemClock.uptimeMillis());
mWindowManager.enableScreenAfterBoot();
synchronized (this) {
updateEventDispatchingLocked();
}
}
@Override
public void showBootMessage(final CharSequence msg, final boolean always) {
enforceNotIsolatedCaller("showBootMessage");
mWindowManager.showBootMessage(msg, always);
}
@Override
public void dismissKeyguardOnNextActivity() {
enforceNotIsolatedCaller("dismissKeyguardOnNextActivity");
final long token = Binder.clearCallingIdentity();
try {
synchronized (this) {
if (DEBUG_LOCKSCREEN) logLockScreen("");
if (mLockScreenShown) {
mLockScreenShown = false;
comeOutOfSleepIfNeededLocked();
}
mStackSupervisor.setDismissKeyguard(true);
}
} finally {
Binder.restoreCallingIdentity(token);
}
}
final void finishBooting() {
IntentFilter pkgFilter = new IntentFilter();
pkgFilter.addAction(Intent.ACTION_QUERY_PACKAGE_RESTART);
pkgFilter.addDataScheme("package");
mContext.registerReceiver(new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String[] pkgs = intent.getStringArrayExtra(Intent.EXTRA_PACKAGES);
if (pkgs != null) {
for (String pkg : pkgs) {
synchronized (ActivityManagerService.this) {
if (forceStopPackageLocked(pkg, -1, false, false, false, false, 0,
"finished booting")) {
setResultCode(Activity.RESULT_OK);
return;
}
}
}
}
}
}, pkgFilter);
synchronized (this) {
// Ensure that any processes we had put on hold are now started
// up.
final int NP = mProcessesOnHold.size();
if (NP > 0) {
ArrayList procs =
new ArrayList(mProcessesOnHold);
for (int ip=0; ip= 1");
}
for (int i=0; i= 0) {
// First... does the target actually need this permission?
if (checkHoldingPermissionsLocked(pm, pi, uri, targetUid, modeFlags)) {
// No need to grant the target this permission.
if (DEBUG_URI_PERMISSION) Slog.v(TAG,
"Target " + targetPkg + " already has full permission to " + uri);
return -1;
}
} else {
// First... there is no target package, so can anyone access it?
boolean allowed = pi.exported;
if ((modeFlags&Intent.FLAG_GRANT_READ_URI_PERMISSION) != 0) {
if (pi.readPermission != null) {
allowed = false;
}
}
if ((modeFlags&Intent.FLAG_GRANT_WRITE_URI_PERMISSION) != 0) {
if (pi.writePermission != null) {
allowed = false;
}
}
if (allowed) {
return -1;
}
}
// Second... is the provider allowing granting of URI permissions?
if (!pi.grantUriPermissions) {
throw new SecurityException("Provider " + pi.packageName
+ "/" + pi.name
+ " does not allow granting of Uri permissions (uri "
+ uri + ")");
}
if (pi.uriPermissionPatterns != null) {
final int N = pi.uriPermissionPatterns.length;
boolean allowed = false;
for (int i=0; i {
final String targetPkg;
final int targetUid;
final int flags;
NeededUriGrants(String targetPkg, int targetUid, int flags) {
this.targetPkg = targetPkg;
this.targetUid = targetUid;
this.flags = flags;
}
}
/**
* Like checkGrantUriPermissionLocked, but takes an Intent.
*/
NeededUriGrants checkGrantUriPermissionFromIntentLocked(int callingUid,
String targetPkg, Intent intent, int mode, NeededUriGrants needed) {
if (DEBUG_URI_PERMISSION) Slog.v(TAG,
"Checking URI perm to data=" + (intent != null ? intent.getData() : null)
+ " clip=" + (intent != null ? intent.getClipData() : null)
+ " from " + intent + "; flags=0x"
+ Integer.toHexString(intent != null ? intent.getFlags() : 0));
if (targetPkg == null) {
throw new NullPointerException("targetPkg");
}
if (intent == null) {
return null;
}
Uri data = intent.getData();
ClipData clip = intent.getClipData();
if (data == null && clip == null) {
return null;
}
if (data != null) {
int targetUid = checkGrantUriPermissionLocked(callingUid, targetPkg, data,
mode, needed != null ? needed.targetUid : -1);
if (targetUid > 0) {
if (needed == null) {
needed = new NeededUriGrants(targetPkg, targetUid, mode);
}
needed.add(data);
}
}
if (clip != null) {
for (int i=0; i 0) {
if (needed == null) {
needed = new NeededUriGrants(targetPkg, targetUid, mode);
}
needed.add(uri);
}
} else {
Intent clipIntent = clip.getItemAt(i).getIntent();
if (clipIntent != null) {
NeededUriGrants newNeeded = checkGrantUriPermissionFromIntentLocked(
callingUid, targetPkg, clipIntent, mode, needed);
if (newNeeded != null) {
needed = newNeeded;
}
}
}
}
}
return needed;
}
/**
* Like grantUriPermissionUncheckedLocked, but takes an Intent.
*/
void grantUriPermissionUncheckedFromIntentLocked(NeededUriGrants needed,
UriPermissionOwner owner) {
if (needed != null) {
for (int i=0; i perms
= mGrantedUriPermissions.get(perm.targetUid);
if (perms != null) {
if (DEBUG_URI_PERMISSION) Slog.v(TAG,
"Removing " + perm.targetUid + " permission to " + perm.uri);
perms.remove(perm.uri);
if (perms.size() == 0) {
mGrantedUriPermissions.remove(perm.targetUid);
}
}
}
}
private void revokeUriPermissionLocked(int callingUid, Uri uri, int modeFlags) {
if (DEBUG_URI_PERMISSION) Slog.v(TAG, "Revoking all granted permissions to " + uri);
final IPackageManager pm = AppGlobals.getPackageManager();
final String authority = uri.getAuthority();
final ProviderInfo pi = getProviderInfoLocked(authority, UserHandle.getUserId(callingUid));
if (pi == null) {
Slog.w(TAG, "No content provider found for permission revoke: " + uri.toSafeString());
return;
}
// Does the caller have this permission on the URI?
if (!checkHoldingPermissionsLocked(pm, pi, uri, callingUid, modeFlags)) {
// Right now, if you are not the original owner of the permission,
// you are not allowed to revoke it.
//if (!checkUriPermissionLocked(uri, callingUid, modeFlags)) {
throw new SecurityException("Uid " + callingUid
+ " does not have permission to uri " + uri);
//}
}
boolean persistChanged = false;
// Go through all of the permissions and remove any that match.
final List SEGMENTS = uri.getPathSegments();
if (SEGMENTS != null) {
final int NS = SEGMENTS.size();
int N = mGrantedUriPermissions.size();
for (int i=0; i perms
= mGrantedUriPermissions.valueAt(i);
Iterator it = perms.values().iterator();
toploop:
while (it.hasNext()) {
UriPermission perm = it.next();
Uri targetUri = perm.uri;
if (!authority.equals(targetUri.getAuthority())) {
continue;
}
List targetSegments = targetUri.getPathSegments();
if (targetSegments == null) {
continue;
}
if (targetSegments.size() < NS) {
continue;
}
for (int j=0; jfrom or to the
* given package.
*
* @param packageName Package name to match, or {@code null} to apply to all
* packages.
* @param userHandle User to match, or {@link UserHandle#USER_ALL} to apply
* to all users.
* @param persistable If persistable grants should be removed.
*/
private void removeUriPermissionsForPackageLocked(
String packageName, int userHandle, boolean persistable) {
if (userHandle == UserHandle.USER_ALL && packageName == null) {
throw new IllegalArgumentException("Must narrow by either package or user");
}
boolean persistChanged = false;
final int size = mGrantedUriPermissions.size();
for (int i = 0; i < size; i++) {
// Only inspect grants matching user
if (userHandle == UserHandle.USER_ALL
|| userHandle == UserHandle.getUserId(mGrantedUriPermissions.keyAt(i))) {
final Iterator it = mGrantedUriPermissions.valueAt(i)
.values().iterator();
while (it.hasNext()) {
final UriPermission perm = it.next();
// Only inspect grants matching package
if (packageName == null || perm.sourcePkg.equals(packageName)
|| perm.targetPkg.equals(packageName)) {
persistChanged |= perm.clearModes(~0, persistable);
// Only remove when no modes remain; any persisted grants
// will keep this alive.
if (perm.modeFlags == 0) {
it.remove();
}
}
}
}
}
if (persistChanged) {
schedulePersistUriGrants();
}
}
@Override
public IBinder newUriPermissionOwner(String name) {
enforceNotIsolatedCaller("newUriPermissionOwner");
synchronized(this) {
UriPermissionOwner owner = new UriPermissionOwner(this, name);
return owner.getExternalTokenLocked();
}
}
@Override
public void grantUriPermissionFromOwner(IBinder token, int fromUid, String targetPkg,
Uri uri, int modeFlags) {
synchronized(this) {
UriPermissionOwner owner = UriPermissionOwner.fromExternalToken(token);
if (owner == null) {
throw new IllegalArgumentException("Unknown owner: " + token);
}
if (fromUid != Binder.getCallingUid()) {
if (Binder.getCallingUid() != Process.myUid()) {
// Only system code can grant URI permissions on behalf
// of other users.
throw new SecurityException("nice try");
}
}
if (targetPkg == null) {
throw new IllegalArgumentException("null target");
}
if (uri == null) {
throw new IllegalArgumentException("null uri");
}
grantUriPermissionLocked(fromUid, targetPkg, uri, modeFlags, owner);
}
}
@Override
public void revokeUriPermissionFromOwner(IBinder token, Uri uri, int mode) {
synchronized(this) {
UriPermissionOwner owner = UriPermissionOwner.fromExternalToken(token);
if (owner == null) {
throw new IllegalArgumentException("Unknown owner: " + token);
}
if (uri == null) {
owner.removeUriPermissionsLocked(mode);
} else {
owner.removeUriPermissionLocked(uri, mode);
}
}
}
private void schedulePersistUriGrants() {
if (!mHandler.hasMessages(PERSIST_URI_GRANTS_MSG)) {
mHandler.sendMessageDelayed(mHandler.obtainMessage(PERSIST_URI_GRANTS_MSG),
10 * DateUtils.SECOND_IN_MILLIS);
}
}
private void writeGrantedUriPermissions() {
if (DEBUG_URI_PERMISSION) Slog.v(TAG, "writeGrantedUriPermissions()");
// Snapshot permissions so we can persist without lock
ArrayList persist = Lists.newArrayList();
synchronized (this) {
final int size = mGrantedUriPermissions.size();
for (int i = 0 ; i < size; i++) {
for (UriPermission perm : mGrantedUriPermissions.valueAt(i).values()) {
if (perm.persistedModeFlags != 0) {
persist.add(perm.snapshot());
}
}
}
}
FileOutputStream fos = null;
try {
fos = mGrantFile.startWrite();
XmlSerializer out = new FastXmlSerializer();
out.setOutput(fos, "utf-8");
out.startDocument(null, true);
out.startTag(null, TAG_URI_GRANTS);
for (UriPermission.Snapshot perm : persist) {
out.startTag(null, TAG_URI_GRANT);
writeIntAttribute(out, ATTR_USER_HANDLE, perm.userHandle);
out.attribute(null, ATTR_SOURCE_PKG, perm.sourcePkg);
out.attribute(null, ATTR_TARGET_PKG, perm.targetPkg);
out.attribute(null, ATTR_URI, String.valueOf(perm.uri));
writeIntAttribute(out, ATTR_MODE_FLAGS, perm.persistedModeFlags);
writeLongAttribute(out, ATTR_CREATED_TIME, perm.persistedCreateTime);
out.endTag(null, TAG_URI_GRANT);
}
out.endTag(null, TAG_URI_GRANTS);
out.endDocument();
mGrantFile.finishWrite(fos);
} catch (IOException e) {
if (fos != null) {
mGrantFile.failWrite(fos);
}
}
}
private void readGrantedUriPermissionsLocked() {
if (DEBUG_URI_PERMISSION) Slog.v(TAG, "readGrantedUriPermissions()");
final long now = System.currentTimeMillis();
FileInputStream fis = null;
try {
fis = mGrantFile.openRead();
final XmlPullParser in = Xml.newPullParser();
in.setInput(fis, null);
int type;
while ((type = in.next()) != END_DOCUMENT) {
final String tag = in.getName();
if (type == START_TAG) {
if (TAG_URI_GRANT.equals(tag)) {
final int userHandle = readIntAttribute(in, ATTR_USER_HANDLE);
final String sourcePkg = in.getAttributeValue(null, ATTR_SOURCE_PKG);
final String targetPkg = in.getAttributeValue(null, ATTR_TARGET_PKG);
final Uri uri = Uri.parse(in.getAttributeValue(null, ATTR_URI));
final int modeFlags = readIntAttribute(in, ATTR_MODE_FLAGS);
final long createdTime = readLongAttribute(in, ATTR_CREATED_TIME, now);
// Sanity check that provider still belongs to source package
final ProviderInfo pi = getProviderInfoLocked(
uri.getAuthority(), userHandle);
if (pi != null && sourcePkg.equals(pi.packageName)) {
int targetUid = -1;
try {
targetUid = AppGlobals.getPackageManager()
.getPackageUid(targetPkg, userHandle);
} catch (RemoteException e) {
}
if (targetUid != -1) {
final UriPermission perm = findOrCreateUriPermissionLocked(
sourcePkg, targetPkg, targetUid, uri);
perm.initPersistedModes(modeFlags, createdTime);
}
} else {
Slog.w(TAG, "Persisted grant for " + uri + " had source " + sourcePkg
+ " but instead found " + pi);
}
}
}
}
} catch (FileNotFoundException e) {
// Missing grants is okay
} catch (IOException e) {
Log.wtf(TAG, "Failed reading Uri grants", e);
} catch (XmlPullParserException e) {
Log.wtf(TAG, "Failed reading Uri grants", e);
} finally {
IoUtils.closeQuietly(fis);
}
}
@Override
public void takePersistableUriPermission(Uri uri, int modeFlags) {
enforceNotIsolatedCaller("takePersistableUriPermission");
Preconditions.checkFlagsArgument(modeFlags,
Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
synchronized (this) {
final int callingUid = Binder.getCallingUid();
final UriPermission perm = findUriPermissionLocked(callingUid, uri);
if (perm == null) {
throw new SecurityException("No permission grant found for UID " + callingUid
+ " and Uri " + uri.toSafeString());
}
boolean persistChanged = perm.takePersistableModes(modeFlags);
persistChanged |= maybePrunePersistedUriGrantsLocked(callingUid);
if (persistChanged) {
schedulePersistUriGrants();
}
}
}
@Override
public void releasePersistableUriPermission(Uri uri, int modeFlags) {
enforceNotIsolatedCaller("releasePersistableUriPermission");
Preconditions.checkFlagsArgument(modeFlags,
Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
synchronized (this) {
final int callingUid = Binder.getCallingUid();
final UriPermission perm = findUriPermissionLocked(callingUid, uri);
if (perm == null) {
Slog.w(TAG, "No permission grant found for UID " + callingUid + " and Uri "
+ uri.toSafeString());
return;
}
final boolean persistChanged = perm.releasePersistableModes(modeFlags);
removeUriPermissionIfNeededLocked(perm);
if (persistChanged) {
schedulePersistUriGrants();
}
}
}
/**
* Prune any older {@link UriPermission} for the given UID until outstanding
* persisted grants are below {@link #MAX_PERSISTED_URI_GRANTS}.
*
* @return if any mutations occured that require persisting.
*/
private boolean maybePrunePersistedUriGrantsLocked(int uid) {
final ArrayMap perms = mGrantedUriPermissions.get(uid);
if (perms == null) return false;
if (perms.size() < MAX_PERSISTED_URI_GRANTS) return false;
final ArrayList persisted = Lists.newArrayList();
for (UriPermission perm : perms.values()) {
if (perm.persistedModeFlags != 0) {
persisted.add(perm);
}
}
final int trimCount = persisted.size() - MAX_PERSISTED_URI_GRANTS;
if (trimCount <= 0) return false;
Collections.sort(persisted, new UriPermission.PersistedTimeComparator());
for (int i = 0; i < trimCount; i++) {
final UriPermission perm = persisted.get(i);
if (DEBUG_URI_PERMISSION) {
Slog.v(TAG, "Trimming grant created at " + perm.persistedCreateTime);
}
perm.releasePersistableModes(~0);
removeUriPermissionIfNeededLocked(perm);
}
return true;
}
@Override
public ParceledListSlice getPersistedUriPermissions(
String packageName, boolean incoming) {
enforceNotIsolatedCaller("getPersistedUriPermissions");
Preconditions.checkNotNull(packageName, "packageName");
final int callingUid = Binder.getCallingUid();
final IPackageManager pm = AppGlobals.getPackageManager();
try {
final int packageUid = pm.getPackageUid(packageName, UserHandle.getUserId(callingUid));
if (packageUid != callingUid) {
throw new SecurityException(
"Package " + packageName + " does not belong to calling UID " + callingUid);
}
} catch (RemoteException e) {
throw new SecurityException("Failed to verify package name ownership");
}
final ArrayList result = Lists.newArrayList();
synchronized (this) {
if (incoming) {
final ArrayMap perms = mGrantedUriPermissions.get(callingUid);
if (perms == null) {
Slog.w(TAG, "No permission grants found for " + packageName);
} else {
final int size = perms.size();
for (int i = 0; i < size; i++) {
final UriPermission perm = perms.valueAt(i);
if (packageName.equals(perm.targetPkg) && perm.persistedModeFlags != 0) {
result.add(perm.buildPersistedPublicApiObject());
}
}
}
} else {
final int size = mGrantedUriPermissions.size();
for (int i = 0; i < size; i++) {
final ArrayMap perms = mGrantedUriPermissions.valueAt(i);
final int permsSize = perms.size();
for (int j = 0; j < permsSize; j++) {
final UriPermission perm = perms.valueAt(j);
if (packageName.equals(perm.sourcePkg) && perm.persistedModeFlags != 0) {
result.add(perm.buildPersistedPublicApiObject());
}
}
}
}
}
return new ParceledListSlice(result);
}
@Override
public void showWaitingForDebugger(IApplicationThread who, boolean waiting) {
synchronized (this) {
ProcessRecord app =
who != null ? getRecordForAppLocked(who) : null;
if (app == null) return;
Message msg = Message.obtain();
msg.what = WAIT_FOR_DEBUGGER_MSG;
msg.obj = app;
msg.arg1 = waiting ? 1 : 0;
mHandler.sendMessage(msg);
}
}
@Override
public void getMemoryInfo(ActivityManager.MemoryInfo outInfo) {
final long homeAppMem = mProcessList.getMemLevel(ProcessList.HOME_APP_ADJ);
final long cachedAppMem = mProcessList.getMemLevel(ProcessList.CACHED_APP_MIN_ADJ);
outInfo.availMem = Process.getFreeMemory();
outInfo.totalMem = Process.getTotalMemory();
outInfo.threshold = homeAppMem;
outInfo.lowMemory = outInfo.availMem < (homeAppMem + ((cachedAppMem-homeAppMem)/2));
outInfo.hiddenAppThreshold = cachedAppMem;
outInfo.secondaryServerThreshold = mProcessList.getMemLevel(
ProcessList.SERVICE_ADJ);
outInfo.visibleAppThreshold = mProcessList.getMemLevel(
ProcessList.VISIBLE_APP_ADJ);
outInfo.foregroundAppThreshold = mProcessList.getMemLevel(
ProcessList.FOREGROUND_APP_ADJ);
}
// =========================================================
// TASK MANAGEMENT
// =========================================================
@Override
public List getTasks(int maxNum, int flags,
IThumbnailReceiver receiver) {
ArrayList list = new ArrayList();
PendingThumbnailsRecord pending = new PendingThumbnailsRecord(receiver);
ActivityRecord topRecord = null;
synchronized(this) {
if (localLOGV) Slog.v(
TAG, "getTasks: max=" + maxNum + ", flags=" + flags
+ ", receiver=" + receiver);
if (checkCallingPermission(android.Manifest.permission.GET_TASKS)
!= PackageManager.PERMISSION_GRANTED) {
if (receiver != null) {
// If the caller wants to wait for pending thumbnails,
// it ain't gonna get them.
try {
receiver.finished();
} catch (RemoteException ex) {
}
}
String msg = "Permission Denial: getTasks() from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid()
+ " requires " + android.Manifest.permission.GET_TASKS;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
// TODO: Improve with MRU list from all ActivityStacks.
topRecord = mStackSupervisor.getTasksLocked(maxNum, receiver, pending, list);
if (!pending.pendingRecords.isEmpty()) {
mPendingThumbnails.add(pending);
}
}
if (localLOGV) Slog.v(TAG, "We have pending thumbnails: " + pending);
if (topRecord != null) {
if (localLOGV) Slog.v(TAG, "Requesting top thumbnail");
try {
IApplicationThread topThumbnail = topRecord.app.thread;
topThumbnail.requestThumbnail(topRecord.appToken);
} catch (Exception e) {
Slog.w(TAG, "Exception thrown when requesting thumbnail", e);
sendPendingThumbnail(null, topRecord.appToken, null, null, true);
}
}
if (pending == null && receiver != null) {
// In this case all thumbnails were available and the client
// is being asked to be told when the remaining ones come in...
// which is unusually, since the top-most currently running
// activity should never have a canned thumbnail! Oh well.
try {
receiver.finished();
} catch (RemoteException ex) {
}
}
return list;
}
TaskRecord getMostRecentTask() {
return mRecentTasks.get(0);
}
@Override
public List getRecentTasks(int maxNum,
int flags, int userId) {
userId = handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(), userId,
false, true, "getRecentTasks", null);
synchronized (this) {
enforceCallingPermission(android.Manifest.permission.GET_TASKS,
"getRecentTasks()");
final boolean detailed = checkCallingPermission(
android.Manifest.permission.GET_DETAILED_TASKS)
== PackageManager.PERMISSION_GRANTED;
IPackageManager pm = AppGlobals.getPackageManager();
final int N = mRecentTasks.size();
ArrayList res
= new ArrayList(
maxNum < N ? maxNum : N);
for (int i=0; i 0; i++) {
TaskRecord tr = mRecentTasks.get(i);
// Only add calling user's recent tasks
if (tr.userId != userId) continue;
// Return the entry if desired by the caller. We always return
// the first entry, because callers always expect this to be the
// foreground app. We may filter others if the caller has
// not supplied RECENT_WITH_EXCLUDED and there is some reason
// we should exclude the entry.
if (i == 0
|| ((flags&ActivityManager.RECENT_WITH_EXCLUDED) != 0)
|| (tr.intent == null)
|| ((tr.intent.getFlags()
&Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS) == 0)) {
ActivityManager.RecentTaskInfo rti
= new ActivityManager.RecentTaskInfo();
rti.id = tr.numActivities > 0 ? tr.taskId : -1;
rti.persistentId = tr.taskId;
rti.baseIntent = new Intent(
tr.intent != null ? tr.intent : tr.affinityIntent);
if (!detailed) {
rti.baseIntent.replaceExtras((Bundle)null);
}
rti.origActivity = tr.origActivity;
rti.description = tr.lastDescription;
rti.stackId = tr.stack.mStackId;
if ((flags&ActivityManager.RECENT_IGNORE_UNAVAILABLE) != 0) {
// Check whether this activity is currently available.
try {
if (rti.origActivity != null) {
if (pm.getActivityInfo(rti.origActivity, 0, userId)
== null) {
continue;
}
} else if (rti.baseIntent != null) {
if (pm.queryIntentActivities(rti.baseIntent,
null, 0, userId) == null) {
continue;
}
}
} catch (RemoteException e) {
// Will never happen.
}
}
res.add(rti);
maxNum--;
}
}
return res;
}
}
private TaskRecord recentTaskForIdLocked(int id) {
final int N = mRecentTasks.size();
for (int i=0; i procs = new ArrayList();
ArrayMap> pmap = mProcessNames.getMap();
for (int i=0; i uids = pmap.valueAt(i);
for (int j=0; j= 0) {
return ActivityRecord.getStackLocked(token).moveTaskToBackLocked(taskId, null);
}
Binder.restoreCallingIdentity(origId);
}
return false;
}
@Override
public void moveTaskBackwards(int task) {
enforceCallingPermission(android.Manifest.permission.REORDER_TASKS,
"moveTaskBackwards()");
synchronized(this) {
if (!checkAppSwitchAllowedLocked(Binder.getCallingPid(),
Binder.getCallingUid(), "Task backwards")) {
return;
}
final long origId = Binder.clearCallingIdentity();
moveTaskBackwardsLocked(task);
Binder.restoreCallingIdentity(origId);
}
}
private final void moveTaskBackwardsLocked(int task) {
Slog.e(TAG, "moveTaskBackwards not yet implemented!");
}
@Override
public int createStack(int taskId, int relativeStackBoxId, int position, float weight) {
enforceCallingPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS,
"createStack()");
if (DEBUG_STACK) Slog.d(TAG, "createStack: taskId=" + taskId + " relStackBoxId=" +
relativeStackBoxId + " position=" + position + " weight=" + weight);
synchronized (this) {
long ident = Binder.clearCallingIdentity();
try {
int stackId = mStackSupervisor.createStack();
mWindowManager.createStack(stackId, relativeStackBoxId, position, weight);
if (taskId > 0) {
moveTaskToStack(taskId, stackId, true);
}
return stackId;
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
@Override
public void moveTaskToStack(int taskId, int stackId, boolean toTop) {
enforceCallingPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS,
"moveTaskToStack()");
if (stackId == HOME_STACK_ID) {
Slog.e(TAG, "moveTaskToStack: Attempt to move task " + taskId + " to home stack",
new RuntimeException("here").fillInStackTrace());
}
synchronized (this) {
long ident = Binder.clearCallingIdentity();
try {
if (DEBUG_STACK) Slog.d(TAG, "moveTaskToStack: moving task=" + taskId + " to stackId="
+ stackId + " toTop=" + toTop);
mStackSupervisor.moveTaskToStack(taskId, stackId, toTop);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
@Override
public void resizeStackBox(int stackBoxId, float weight) {
enforceCallingPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS,
"resizeStackBox()");
long ident = Binder.clearCallingIdentity();
try {
mWindowManager.resizeStackBox(stackBoxId, weight);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
private ArrayList getStacks() {
synchronized (this) {
ArrayList list = new ArrayList();
ArrayList stacks = mStackSupervisor.getStacks();
for (ActivityStack stack : stacks) {
ActivityManager.StackInfo stackInfo = new ActivityManager.StackInfo();
int stackId = stack.mStackId;
stackInfo.stackId = stackId;
stackInfo.bounds = mWindowManager.getStackBounds(stackId);
ArrayList tasks = stack.getAllTasks();
final int numTasks = tasks.size();
int[] taskIds = new int[numTasks];
String[] taskNames = new String[numTasks];
for (int i = 0; i < numTasks; ++i) {
final TaskRecord task = tasks.get(i);
taskIds[i] = task.taskId;
taskNames[i] = task.origActivity != null ? task.origActivity.flattenToString()
: task.realActivity != null ? task.realActivity.flattenToString()
: task.getTopActivity() != null ? task.getTopActivity().packageName
: "unknown";
}
stackInfo.taskIds = taskIds;
stackInfo.taskNames = taskNames;
list.add(stackInfo);
}
return list;
}
}
private void addStackInfoToStackBoxInfo(StackBoxInfo stackBoxInfo, List stackInfos) {
final int stackId = stackBoxInfo.stackId;
if (stackId >= 0) {
for (StackInfo stackInfo : stackInfos) {
if (stackId == stackInfo.stackId) {
stackBoxInfo.stack = stackInfo;
stackInfos.remove(stackInfo);
return;
}
}
} else {
addStackInfoToStackBoxInfo(stackBoxInfo.children[0], stackInfos);
addStackInfoToStackBoxInfo(stackBoxInfo.children[1], stackInfos);
}
}
@Override
public List getStackBoxes() {
enforceCallingPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS,
"getStackBoxes()");
long ident = Binder.clearCallingIdentity();
try {
List stackBoxInfos = mWindowManager.getStackBoxInfos();
synchronized (this) {
List stackInfos = getStacks();
for (StackBoxInfo stackBoxInfo : stackBoxInfos) {
addStackInfoToStackBoxInfo(stackBoxInfo, stackInfos);
}
}
return stackBoxInfos;
} finally {
Binder.restoreCallingIdentity(ident);
}
}
@Override
public StackBoxInfo getStackBoxInfo(int stackBoxId) {
enforceCallingPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS,
"getStackBoxInfo()");
long ident = Binder.clearCallingIdentity();
try {
List stackBoxInfos = mWindowManager.getStackBoxInfos();
StackBoxInfo info = null;
synchronized (this) {
List stackInfos = getStacks();
for (StackBoxInfo stackBoxInfo : stackBoxInfos) {
addStackInfoToStackBoxInfo(stackBoxInfo, stackInfos);
if (stackBoxInfo.stackBoxId == stackBoxId) {
info = stackBoxInfo;
}
}
}
return info;
} finally {
Binder.restoreCallingIdentity(ident);
}
}
@Override
public int getTaskForActivity(IBinder token, boolean onlyRoot) {
synchronized(this) {
return ActivityRecord.getTaskForActivityLocked(token, onlyRoot);
}
}
// =========================================================
// THUMBNAILS
// =========================================================
public void reportThumbnail(IBinder token,
Bitmap thumbnail, CharSequence description) {
//System.out.println("Report thumbnail for " + token + ": " + thumbnail);
final long origId = Binder.clearCallingIdentity();
sendPendingThumbnail(null, token, thumbnail, description, true);
Binder.restoreCallingIdentity(origId);
}
final void sendPendingThumbnail(ActivityRecord r, IBinder token,
Bitmap thumbnail, CharSequence description, boolean always) {
TaskRecord task;
ArrayList receivers = null;
//System.out.println("Send pending thumbnail: " + r);
synchronized(this) {
if (r == null) {
r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return;
}
}
if (thumbnail == null && r.thumbHolder != null) {
thumbnail = r.thumbHolder.lastThumbnail;
description = r.thumbHolder.lastDescription;
}
if (thumbnail == null && !always) {
// If there is no thumbnail, and this entry is not actually
// going away, then abort for now and pick up the next
// thumbnail we get.
return;
}
task = r.task;
int N = mPendingThumbnails.size();
int i=0;
while (i();
}
receivers.add(pr);
if (pr.pendingRecords.size() == 0) {
pr.finished = true;
mPendingThumbnails.remove(i);
N--;
continue;
}
}
i++;
}
}
if (receivers != null) {
final int N = receivers.size();
for (int i=0; i generateApplicationProvidersLocked(ProcessRecord app) {
List providers = null;
try {
providers = AppGlobals.getPackageManager().
queryContentProviders(app.processName, app.uid,
STOCK_PM_FLAGS | PackageManager.GET_URI_PERMISSION_PATTERNS);
} catch (RemoteException ex) {
}
if (DEBUG_MU)
Slog.v(TAG_MU, "generateApplicationProvidersLocked, app.info.uid = " + app.uid);
int userId = app.userId;
if (providers != null) {
int N = providers.size();
app.pubProviders.ensureCapacity(N + app.pubProviders.size());
for (int i=0; i= N) {
final long origId = Binder.clearCallingIdentity();
try {
// Content provider is now in use, its package can't be stopped.
try {
AppGlobals.getPackageManager().setPackageStoppedState(
cpr.appInfo.packageName, false, userId);
} catch (RemoteException e) {
} catch (IllegalArgumentException e) {
Slog.w(TAG, "Failed trying to unstop package "
+ cpr.appInfo.packageName + ": " + e);
}
// Use existing process if already started
ProcessRecord proc = getProcessRecordLocked(
cpi.processName, cpr.appInfo.uid, false);
if (proc != null && proc.thread != null) {
if (DEBUG_PROVIDER) {
Slog.d(TAG, "Installing in existing process " + proc);
}
proc.pubProviders.put(cpi.name, cpr);
try {
proc.thread.scheduleInstallProvider(cpi);
} catch (RemoteException e) {
}
} else {
proc = startProcessLocked(cpi.processName,
cpr.appInfo, false, 0, "content provider",
new ComponentName(cpi.applicationInfo.packageName,
cpi.name), false, false, false);
if (proc == null) {
Slog.w(TAG, "Unable to launch app "
+ cpi.applicationInfo.packageName + "/"
+ cpi.applicationInfo.uid + " for provider "
+ name + ": process is bad");
return null;
}
}
cpr.launchingApp = proc;
mLaunchingProviders.add(cpr);
} finally {
Binder.restoreCallingIdentity(origId);
}
}
// Make sure the provider is published (the same provider class
// may be published under multiple names).
if (firstClass) {
mProviderMap.putProviderByClass(comp, cpr);
}
mProviderMap.putProviderByName(name, cpr);
conn = incProviderCountLocked(r, cpr, token, stable);
if (conn != null) {
conn.waiting = true;
}
}
}
// Wait for the provider to be published...
synchronized (cpr) {
while (cpr.provider == null) {
if (cpr.launchingApp == null) {
Slog.w(TAG, "Unable to launch app "
+ cpi.applicationInfo.packageName + "/"
+ cpi.applicationInfo.uid + " for provider "
+ name + ": launching app became null");
EventLog.writeEvent(EventLogTags.AM_PROVIDER_LOST_PROCESS,
UserHandle.getUserId(cpi.applicationInfo.uid),
cpi.applicationInfo.packageName,
cpi.applicationInfo.uid, name);
return null;
}
try {
if (DEBUG_MU) {
Slog.v(TAG_MU, "Waiting to start provider " + cpr + " launchingApp="
+ cpr.launchingApp);
}
if (conn != null) {
conn.waiting = true;
}
cpr.wait();
} catch (InterruptedException ex) {
} finally {
if (conn != null) {
conn.waiting = false;
}
}
}
}
return cpr != null ? cpr.newHolder(conn) : null;
}
public final ContentProviderHolder getContentProvider(
IApplicationThread caller, String name, int userId, boolean stable) {
enforceNotIsolatedCaller("getContentProvider");
if (caller == null) {
String msg = "null IApplicationThread when getting content provider "
+ name;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
userId = handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(), userId,
false, true, "getContentProvider", null);
return getContentProviderImpl(caller, name, null, stable, userId);
}
public ContentProviderHolder getContentProviderExternal(
String name, int userId, IBinder token) {
enforceCallingPermission(android.Manifest.permission.ACCESS_CONTENT_PROVIDERS_EXTERNALLY,
"Do not have permission in call getContentProviderExternal()");
userId = handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(), userId,
false, true, "getContentProvider", null);
return getContentProviderExternalUnchecked(name, token, userId);
}
private ContentProviderHolder getContentProviderExternalUnchecked(String name,
IBinder token, int userId) {
return getContentProviderImpl(null, name, token, true, userId);
}
/**
* Drop a content provider from a ProcessRecord's bookkeeping
*/
public void removeContentProvider(IBinder connection, boolean stable) {
enforceNotIsolatedCaller("removeContentProvider");
synchronized (this) {
ContentProviderConnection conn;
try {
conn = (ContentProviderConnection)connection;
} catch (ClassCastException e) {
String msg ="removeContentProvider: " + connection
+ " not a ContentProviderConnection";
Slog.w(TAG, msg);
throw new IllegalArgumentException(msg);
}
if (conn == null) {
throw new NullPointerException("connection is null");
}
if (decProviderCountLocked(conn, null, null, stable)) {
updateOomAdjLocked();
}
}
}
public void removeContentProviderExternal(String name, IBinder token) {
enforceCallingPermission(android.Manifest.permission.ACCESS_CONTENT_PROVIDERS_EXTERNALLY,
"Do not have permission in call removeContentProviderExternal()");
removeContentProviderExternalUnchecked(name, token, UserHandle.getCallingUserId());
}
private void removeContentProviderExternalUnchecked(String name, IBinder token, int userId) {
synchronized (this) {
ContentProviderRecord cpr = mProviderMap.getProviderByName(name, userId);
if(cpr == null) {
//remove from mProvidersByClass
if(localLOGV) Slog.v(TAG, name+" content provider not found in providers list");
return;
}
//update content provider record entry info
ComponentName comp = new ComponentName(cpr.info.packageName, cpr.info.name);
ContentProviderRecord localCpr = mProviderMap.getProviderByClass(comp, userId);
if (localCpr.hasExternalProcessHandles()) {
if (localCpr.removeExternalProcessHandleLocked(token)) {
updateOomAdjLocked();
} else {
Slog.e(TAG, "Attmpt to remove content provider " + localCpr
+ " with no external reference for token: "
+ token + ".");
}
} else {
Slog.e(TAG, "Attmpt to remove content provider: " + localCpr
+ " with no external references.");
}
}
}
public final void publishContentProviders(IApplicationThread caller,
List providers) {
if (providers == null) {
return;
}
enforceNotIsolatedCaller("publishContentProviders");
synchronized (this) {
final ProcessRecord r = getRecordForAppLocked(caller);
if (DEBUG_MU)
Slog.v(TAG_MU, "ProcessRecord uid = " + r.uid);
if (r == null) {
throw new SecurityException(
"Unable to find app for caller " + caller
+ " (pid=" + Binder.getCallingPid()
+ ") when publishing content providers");
}
final long origId = Binder.clearCallingIdentity();
final int N = providers.size();
for (int i=0; i 0) {
conn.numStableIncs += stable;
}
stable = conn.stableCount + stable;
if (stable < 0) {
throw new IllegalStateException("stableCount < 0: " + stable);
}
if (unstable > 0) {
conn.numUnstableIncs += unstable;
}
unstable = conn.unstableCount + unstable;
if (unstable < 0) {
throw new IllegalStateException("unstableCount < 0: " + unstable);
}
if ((stable+unstable) <= 0) {
throw new IllegalStateException("ref counts can't go to zero here: stable="
+ stable + " unstable=" + unstable);
}
conn.stableCount = stable;
conn.unstableCount = unstable;
return !conn.dead;
}
}
public void unstableProviderDied(IBinder connection) {
ContentProviderConnection conn;
try {
conn = (ContentProviderConnection)connection;
} catch (ClassCastException e) {
String msg ="refContentProvider: " + connection
+ " not a ContentProviderConnection";
Slog.w(TAG, msg);
throw new IllegalArgumentException(msg);
}
if (conn == null) {
throw new NullPointerException("connection is null");
}
// Safely retrieve the content provider associated with the connection.
IContentProvider provider;
synchronized (this) {
provider = conn.provider.provider;
}
if (provider == null) {
// Um, yeah, we're way ahead of you.
return;
}
// Make sure the caller is being honest with us.
if (provider.asBinder().pingBinder()) {
// Er, no, still looks good to us.
synchronized (this) {
Slog.w(TAG, "unstableProviderDied: caller " + Binder.getCallingUid()
+ " says " + conn + " died, but we don't agree");
return;
}
}
// Well look at that! It's dead!
synchronized (this) {
if (conn.provider.provider != provider) {
// But something changed... good enough.
return;
}
ProcessRecord proc = conn.provider.proc;
if (proc == null || proc.thread == null) {
// Seems like the process is already cleaned up.
return;
}
// As far as we're concerned, this is just like receiving a
// death notification... just a bit prematurely.
Slog.i(TAG, "Process " + proc.processName + " (pid " + proc.pid
+ ") early provider death");
final long ident = Binder.clearCallingIdentity();
try {
appDiedLocked(proc, proc.pid, proc.thread);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
@Override
public void appNotRespondingViaProvider(IBinder connection) {
enforceCallingPermission(
android.Manifest.permission.REMOVE_TASKS, "appNotRespondingViaProvider()");
final ContentProviderConnection conn = (ContentProviderConnection) connection;
if (conn == null) {
Slog.w(TAG, "ContentProviderConnection is null");
return;
}
final ProcessRecord host = conn.provider.proc;
if (host == null) {
Slog.w(TAG, "Failed to find hosting ProcessRecord");
return;
}
final long token = Binder.clearCallingIdentity();
try {
appNotResponding(host, null, null, false, "ContentProvider not responding");
} finally {
Binder.restoreCallingIdentity(token);
}
}
public static final void installSystemProviders() {
List providers;
synchronized (mSelf) {
ProcessRecord app = mSelf.mProcessNames.get("system", Process.SYSTEM_UID);
providers = mSelf.generateApplicationProvidersLocked(app);
if (providers != null) {
for (int i=providers.size()-1; i>=0; i--) {
ProviderInfo pi = (ProviderInfo)providers.get(i);
if ((pi.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) == 0) {
Slog.w(TAG, "Not installing system proc provider " + pi.name
+ ": not system .apk");
providers.remove(i);
}
}
}
}
if (providers != null) {
mSystemThread.installSystemProviders(providers);
}
mSelf.mCoreSettingsObserver = new CoreSettingsObserver(mSelf);
mSelf.mUsageStatsService.monitorPackages();
}
/**
* Allows app to retrieve the MIME type of a URI without having permission
* to access its content provider.
*
* CTS tests for this functionality can be run with "runtest cts-appsecurity".
*
* Test cases are at cts/tests/appsecurity-tests/test-apps/UsePermissionDiffCert/
* src/com/android/cts/usespermissiondiffcertapp/AccessPermissionWithDiffSigTest.java
*/
public String getProviderMimeType(Uri uri, int userId) {
enforceNotIsolatedCaller("getProviderMimeType");
userId = handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(),
userId, false, true, "getProviderMimeType", null);
final String name = uri.getAuthority();
final long ident = Binder.clearCallingIdentity();
ContentProviderHolder holder = null;
try {
holder = getContentProviderExternalUnchecked(name, null, userId);
if (holder != null) {
return holder.provider.getType(uri);
}
} catch (RemoteException e) {
Log.w(TAG, "Content provider dead retrieving " + uri, e);
return null;
} finally {
if (holder != null) {
removeContentProviderExternalUnchecked(name, null, userId);
}
Binder.restoreCallingIdentity(ident);
}
return null;
}
// =========================================================
// GLOBAL MANAGEMENT
// =========================================================
final ProcessRecord newProcessRecordLocked(ApplicationInfo info, String customProcess,
boolean isolated) {
String proc = customProcess != null ? customProcess : info.processName;
BatteryStatsImpl.Uid.Proc ps = null;
BatteryStatsImpl stats = mBatteryStatsService.getActiveStatistics();
int uid = info.uid;
if (isolated) {
int userId = UserHandle.getUserId(uid);
int stepsLeft = Process.LAST_ISOLATED_UID - Process.FIRST_ISOLATED_UID + 1;
while (true) {
if (mNextIsolatedProcessUid < Process.FIRST_ISOLATED_UID
|| mNextIsolatedProcessUid > Process.LAST_ISOLATED_UID) {
mNextIsolatedProcessUid = Process.FIRST_ISOLATED_UID;
}
uid = UserHandle.getUid(userId, mNextIsolatedProcessUid);
mNextIsolatedProcessUid++;
if (mIsolatedProcesses.indexOfKey(uid) < 0) {
// No process for this uid, use it.
break;
}
stepsLeft--;
if (stepsLeft <= 0) {
return null;
}
}
}
synchronized (stats) {
ps = stats.getProcessStatsLocked(info.uid, proc);
}
return new ProcessRecord(ps, info, proc, uid);
}
final ProcessRecord addAppLocked(ApplicationInfo info, boolean isolated) {
ProcessRecord app;
if (!isolated) {
app = getProcessRecordLocked(info.processName, info.uid, true);
} else {
app = null;
}
if (app == null) {
app = newProcessRecordLocked(info, null, isolated);
mProcessNames.put(info.processName, app.uid, app);
if (isolated) {
mIsolatedProcesses.put(app.uid, app);
}
updateLruProcessLocked(app, true, false);
}
// This package really, really can not be stopped.
try {
AppGlobals.getPackageManager().setPackageStoppedState(
info.packageName, false, UserHandle.getUserId(app.uid));
} catch (RemoteException e) {
} catch (IllegalArgumentException e) {
Slog.w(TAG, "Failed trying to unstop package "
+ info.packageName + ": " + e);
}
if ((info.flags&(ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PERSISTENT))
== (ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PERSISTENT)) {
app.persistent = true;
app.maxAdj = ProcessList.PERSISTENT_PROC_ADJ;
}
if (app.thread == null && mPersistentStartingProcesses.indexOf(app) < 0) {
mPersistentStartingProcesses.add(app);
startProcessLocked(app, "added application", app.processName);
}
return app;
}
public void unhandledBack() {
enforceCallingPermission(android.Manifest.permission.FORCE_BACK,
"unhandledBack()");
synchronized(this) {
final long origId = Binder.clearCallingIdentity();
try {
getFocusedStack().unhandledBackLocked();
} finally {
Binder.restoreCallingIdentity(origId);
}
}
}
public ParcelFileDescriptor openContentUri(Uri uri) throws RemoteException {
enforceNotIsolatedCaller("openContentUri");
final int userId = UserHandle.getCallingUserId();
String name = uri.getAuthority();
ContentProviderHolder cph = getContentProviderExternalUnchecked(name, null, userId);
ParcelFileDescriptor pfd = null;
if (cph != null) {
// We record the binder invoker's uid in thread-local storage before
// going to the content provider to open the file. Later, in the code
// that handles all permissions checks, we look for this uid and use
// that rather than the Activity Manager's own uid. The effect is that
// we do the check against the caller's permissions even though it looks
// to the content provider like the Activity Manager itself is making
// the request.
sCallerIdentity.set(new Identity(
Binder.getCallingPid(), Binder.getCallingUid()));
try {
pfd = cph.provider.openFile(null, uri, "r", null);
} catch (FileNotFoundException e) {
// do nothing; pfd will be returned null
} finally {
// Ensure that whatever happens, we clean up the identity state
sCallerIdentity.remove();
}
// We've got the fd now, so we're done with the provider.
removeContentProviderExternalUnchecked(name, null, userId);
} else {
Slog.d(TAG, "Failed to get provider for authority '" + name + "'");
}
return pfd;
}
// Actually is sleeping or shutting down or whatever else in the future
// is an inactive state.
public boolean isSleepingOrShuttingDown() {
return mSleeping || mShuttingDown;
}
public void goingToSleep() {
if (checkCallingPermission(android.Manifest.permission.DEVICE_POWER)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.DEVICE_POWER);
}
synchronized(this) {
mWentToSleep = true;
updateEventDispatchingLocked();
if (!mSleeping) {
mSleeping = true;
mStackSupervisor.goingToSleepLocked();
// Initialize the wake times of all processes.
checkExcessivePowerUsageLocked(false);
mHandler.removeMessages(CHECK_EXCESSIVE_WAKE_LOCKS_MSG);
Message nmsg = mHandler.obtainMessage(CHECK_EXCESSIVE_WAKE_LOCKS_MSG);
mHandler.sendMessageDelayed(nmsg, POWER_CHECK_DELAY);
}
}
}
@Override
public boolean shutdown(int timeout) {
if (checkCallingPermission(android.Manifest.permission.SHUTDOWN)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.SHUTDOWN);
}
boolean timedout = false;
synchronized(this) {
mShuttingDown = true;
updateEventDispatchingLocked();
timedout = mStackSupervisor.shutdownLocked(timeout);
}
mAppOpsService.shutdown();
mUsageStatsService.shutdown();
mBatteryStatsService.shutdown();
synchronized (this) {
mProcessStats.shutdownLocked();
}
return timedout;
}
public final void activitySlept(IBinder token) {
if (localLOGV) Slog.v(TAG, "Activity slept: token=" + token);
final long origId = Binder.clearCallingIdentity();
synchronized (this) {
final ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r != null) {
mStackSupervisor.activitySleptLocked(r);
}
}
Binder.restoreCallingIdentity(origId);
}
void logLockScreen(String msg) {
if (DEBUG_LOCKSCREEN) Slog.d(TAG, Debug.getCallers(2) + ":" + msg +
" mLockScreenShown=" + mLockScreenShown + " mWentToSleep=" +
mWentToSleep + " mSleeping=" + mSleeping + " mDismissKeyguardOnNextActivity=" +
mStackSupervisor.mDismissKeyguardOnNextActivity);
}
private void comeOutOfSleepIfNeededLocked() {
if (!mWentToSleep && !mLockScreenShown) {
if (mSleeping) {
mSleeping = false;
mStackSupervisor.comeOutOfSleepIfNeededLocked();
}
}
}
public void wakingUp() {
if (checkCallingPermission(android.Manifest.permission.DEVICE_POWER)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.DEVICE_POWER);
}
synchronized(this) {
mWentToSleep = false;
updateEventDispatchingLocked();
comeOutOfSleepIfNeededLocked();
}
}
private void updateEventDispatchingLocked() {
mWindowManager.setEventDispatching(mBooted && !mWentToSleep && !mShuttingDown);
}
public void setLockScreenShown(boolean shown) {
if (checkCallingPermission(android.Manifest.permission.DEVICE_POWER)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.DEVICE_POWER);
}
synchronized(this) {
long ident = Binder.clearCallingIdentity();
try {
if (DEBUG_LOCKSCREEN) logLockScreen(" shown=" + shown);
mLockScreenShown = shown;
comeOutOfSleepIfNeededLocked();
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
public void stopAppSwitches() {
if (checkCallingPermission(android.Manifest.permission.STOP_APP_SWITCHES)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.STOP_APP_SWITCHES);
}
synchronized(this) {
mAppSwitchesAllowedTime = SystemClock.uptimeMillis()
+ APP_SWITCH_DELAY_TIME;
mDidAppSwitch = false;
mHandler.removeMessages(DO_PENDING_ACTIVITY_LAUNCHES_MSG);
Message msg = mHandler.obtainMessage(DO_PENDING_ACTIVITY_LAUNCHES_MSG);
mHandler.sendMessageDelayed(msg, APP_SWITCH_DELAY_TIME);
}
}
public void resumeAppSwitches() {
if (checkCallingPermission(android.Manifest.permission.STOP_APP_SWITCHES)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.STOP_APP_SWITCHES);
}
synchronized(this) {
// Note that we don't execute any pending app switches... we will
// let those wait until either the timeout, or the next start
// activity request.
mAppSwitchesAllowedTime = 0;
}
}
boolean checkAppSwitchAllowedLocked(int callingPid, int callingUid,
String name) {
if (mAppSwitchesAllowedTime < SystemClock.uptimeMillis()) {
return true;
}
final int perm = checkComponentPermission(
android.Manifest.permission.STOP_APP_SWITCHES, callingPid,
callingUid, -1, true);
if (perm == PackageManager.PERMISSION_GRANTED) {
return true;
}
Slog.w(TAG, name + " request from " + callingUid + " stopped");
return false;
}
public void setDebugApp(String packageName, boolean waitForDebugger,
boolean persistent) {
enforceCallingPermission(android.Manifest.permission.SET_DEBUG_APP,
"setDebugApp()");
long ident = Binder.clearCallingIdentity();
try {
// Note that this is not really thread safe if there are multiple
// callers into it at the same time, but that's not a situation we
// care about.
if (persistent) {
final ContentResolver resolver = mContext.getContentResolver();
Settings.Global.putString(
resolver, Settings.Global.DEBUG_APP,
packageName);
Settings.Global.putInt(
resolver, Settings.Global.WAIT_FOR_DEBUGGER,
waitForDebugger ? 1 : 0);
}
synchronized (this) {
if (!persistent) {
mOrigDebugApp = mDebugApp;
mOrigWaitForDebugger = mWaitForDebugger;
}
mDebugApp = packageName;
mWaitForDebugger = waitForDebugger;
mDebugTransient = !persistent;
if (packageName != null) {
forceStopPackageLocked(packageName, -1, false, false, true, true,
UserHandle.USER_ALL, "set debug app");
}
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
void setOpenGlTraceApp(ApplicationInfo app, String processName) {
synchronized (this) {
boolean isDebuggable = "1".equals(SystemProperties.get(SYSTEM_DEBUGGABLE, "0"));
if (!isDebuggable) {
if ((app.flags&ApplicationInfo.FLAG_DEBUGGABLE) == 0) {
throw new SecurityException("Process not debuggable: " + app.packageName);
}
}
mOpenGlTraceApp = processName;
}
}
void setProfileApp(ApplicationInfo app, String processName, String profileFile,
ParcelFileDescriptor profileFd, boolean autoStopProfiler) {
synchronized (this) {
boolean isDebuggable = "1".equals(SystemProperties.get(SYSTEM_DEBUGGABLE, "0"));
if (!isDebuggable) {
if ((app.flags&ApplicationInfo.FLAG_DEBUGGABLE) == 0) {
throw new SecurityException("Process not debuggable: " + app.packageName);
}
}
mProfileApp = processName;
mProfileFile = profileFile;
if (mProfileFd != null) {
try {
mProfileFd.close();
} catch (IOException e) {
}
mProfileFd = null;
}
mProfileFd = profileFd;
mProfileType = 0;
mAutoStopProfiler = autoStopProfiler;
}
}
@Override
public void setAlwaysFinish(boolean enabled) {
enforceCallingPermission(android.Manifest.permission.SET_ALWAYS_FINISH,
"setAlwaysFinish()");
Settings.Global.putInt(
mContext.getContentResolver(),
Settings.Global.ALWAYS_FINISH_ACTIVITIES, enabled ? 1 : 0);
synchronized (this) {
mAlwaysFinishActivities = enabled;
}
}
@Override
public void setActivityController(IActivityController controller) {
enforceCallingPermission(android.Manifest.permission.SET_ACTIVITY_WATCHER,
"setActivityController()");
synchronized (this) {
mController = controller;
Watchdog.getInstance().setActivityController(controller);
}
}
@Override
public void setUserIsMonkey(boolean userIsMonkey) {
synchronized (this) {
synchronized (mPidsSelfLocked) {
final int callingPid = Binder.getCallingPid();
ProcessRecord precessRecord = mPidsSelfLocked.get(callingPid);
if (precessRecord == null) {
throw new SecurityException("Unknown process: " + callingPid);
}
if (precessRecord.instrumentationUiAutomationConnection == null) {
throw new SecurityException("Only an instrumentation process "
+ "with a UiAutomation can call setUserIsMonkey");
}
}
mUserIsMonkey = userIsMonkey;
}
}
@Override
public boolean isUserAMonkey() {
synchronized (this) {
// If there is a controller also implies the user is a monkey.
return (mUserIsMonkey || mController != null);
}
}
public void requestBugReport() {
enforceCallingPermission(android.Manifest.permission.DUMP, "requestBugReport");
SystemProperties.set("ctl.start", "bugreport");
}
public static long getInputDispatchingTimeoutLocked(ActivityRecord r) {
return r != null ? getInputDispatchingTimeoutLocked(r.app) : KEY_DISPATCHING_TIMEOUT;
}
public static long getInputDispatchingTimeoutLocked(ProcessRecord r) {
if (r != null && (r.instrumentationClass != null || r.usingWrapper)) {
return INSTRUMENTATION_KEY_DISPATCHING_TIMEOUT;
}
return KEY_DISPATCHING_TIMEOUT;
}
@Override
public long inputDispatchingTimedOut(int pid, final boolean aboveSystem, String reason) {
if (checkCallingPermission(android.Manifest.permission.FILTER_EVENTS)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.FILTER_EVENTS);
}
ProcessRecord proc;
long timeout;
synchronized (this) {
synchronized (mPidsSelfLocked) {
proc = mPidsSelfLocked.get(pid);
}
timeout = getInputDispatchingTimeoutLocked(proc);
}
if (!inputDispatchingTimedOut(proc, null, null, aboveSystem, reason)) {
return -1;
}
return timeout;
}
/**
* Handle input dispatching timeouts.
* Returns whether input dispatching should be aborted or not.
*/
public boolean inputDispatchingTimedOut(final ProcessRecord proc,
final ActivityRecord activity, final ActivityRecord parent,
final boolean aboveSystem, String reason) {
if (checkCallingPermission(android.Manifest.permission.FILTER_EVENTS)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.FILTER_EVENTS);
}
final String annotation;
if (reason == null) {
annotation = "Input dispatching timed out";
} else {
annotation = "Input dispatching timed out (" + reason + ")";
}
if (proc != null) {
synchronized (this) {
if (proc.debugging) {
return false;
}
if (mDidDexOpt) {
// Give more time since we were dexopting.
mDidDexOpt = false;
return false;
}
if (proc.instrumentationClass != null) {
Bundle info = new Bundle();
info.putString("shortMsg", "keyDispatchingTimedOut");
info.putString("longMsg", annotation);
finishInstrumentationLocked(proc, Activity.RESULT_CANCELED, info);
return true;
}
}
mHandler.post(new Runnable() {
@Override
public void run() {
appNotResponding(proc, activity, parent, aboveSystem, annotation);
}
});
}
return true;
}
public Bundle getAssistContextExtras(int requestType) {
enforceCallingPermission(android.Manifest.permission.GET_TOP_ACTIVITY_INFO,
"getAssistContextExtras()");
PendingAssistExtras pae;
Bundle extras = new Bundle();
synchronized (this) {
ActivityRecord activity = getFocusedStack().mResumedActivity;
if (activity == null) {
Slog.w(TAG, "getAssistContextExtras failed: no resumed activity");
return null;
}
extras.putString(Intent.EXTRA_ASSIST_PACKAGE, activity.packageName);
if (activity.app == null || activity.app.thread == null) {
Slog.w(TAG, "getAssistContextExtras failed: no process for " + activity);
return extras;
}
if (activity.app.pid == Binder.getCallingPid()) {
Slog.w(TAG, "getAssistContextExtras failed: request process same as " + activity);
return extras;
}
pae = new PendingAssistExtras(activity);
try {
activity.app.thread.requestAssistContextExtras(activity.appToken, pae,
requestType);
mPendingAssistExtras.add(pae);
mHandler.postDelayed(pae, PENDING_ASSIST_EXTRAS_TIMEOUT);
} catch (RemoteException e) {
Slog.w(TAG, "getAssistContextExtras failed: crash calling " + activity);
return extras;
}
}
synchronized (pae) {
while (!pae.haveResult) {
try {
pae.wait();
} catch (InterruptedException e) {
}
}
if (pae.result != null) {
extras.putBundle(Intent.EXTRA_ASSIST_CONTEXT, pae.result);
}
}
synchronized (this) {
mPendingAssistExtras.remove(pae);
mHandler.removeCallbacks(pae);
}
return extras;
}
public void reportAssistContextExtras(IBinder token, Bundle extras) {
PendingAssistExtras pae = (PendingAssistExtras)token;
synchronized (pae) {
pae.result = extras;
pae.haveResult = true;
pae.notifyAll();
}
}
public void registerProcessObserver(IProcessObserver observer) {
enforceCallingPermission(android.Manifest.permission.SET_ACTIVITY_WATCHER,
"registerProcessObserver()");
synchronized (this) {
mProcessObservers.register(observer);
}
}
@Override
public void unregisterProcessObserver(IProcessObserver observer) {
synchronized (this) {
mProcessObservers.unregister(observer);
}
}
@Override
public boolean convertFromTranslucent(IBinder token) {
final long origId = Binder.clearCallingIdentity();
try {
synchronized (this) {
final ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return false;
}
if (r.changeWindowTranslucency(true)) {
mWindowManager.setAppFullscreen(token, true);
mStackSupervisor.ensureActivitiesVisibleLocked(null, 0);
return true;
}
return false;
}
} finally {
Binder.restoreCallingIdentity(origId);
}
}
@Override
public boolean convertToTranslucent(IBinder token) {
final long origId = Binder.clearCallingIdentity();
try {
synchronized (this) {
final ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return false;
}
if (r.changeWindowTranslucency(false)) {
r.task.stack.convertToTranslucent(r);
mWindowManager.setAppFullscreen(token, false);
mStackSupervisor.ensureActivitiesVisibleLocked(null, 0);
return true;
}
return false;
}
} finally {
Binder.restoreCallingIdentity(origId);
}
}
@Override
public void setImmersive(IBinder token, boolean immersive) {
synchronized(this) {
final ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
throw new IllegalArgumentException();
}
r.immersive = immersive;
// update associated state if we're frontmost
if (r == mFocusedActivity) {
if (DEBUG_IMMERSIVE) {
Slog.d(TAG, "Frontmost changed immersion: "+ r);
}
applyUpdateLockStateLocked(r);
}
}
}
@Override
public boolean isImmersive(IBinder token) {
synchronized (this) {
ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
throw new IllegalArgumentException();
}
return r.immersive;
}
}
public boolean isTopActivityImmersive() {
enforceNotIsolatedCaller("startActivity");
synchronized (this) {
ActivityRecord r = getFocusedStack().topRunningActivityLocked(null);
return (r != null) ? r.immersive : false;
}
}
public final void enterSafeMode() {
synchronized(this) {
// It only makes sense to do this before the system is ready
// and started launching other packages.
if (!mSystemReady) {
try {
AppGlobals.getPackageManager().enterSafeMode();
} catch (RemoteException e) {
}
}
}
}
public final void showSafeModeOverlay() {
View v = LayoutInflater.from(mContext).inflate(
com.android.internal.R.layout.safe_mode, null);
WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
lp.type = WindowManager.LayoutParams.TYPE_SECURE_SYSTEM_OVERLAY;
lp.width = WindowManager.LayoutParams.WRAP_CONTENT;
lp.height = WindowManager.LayoutParams.WRAP_CONTENT;
lp.gravity = Gravity.BOTTOM | Gravity.START;
lp.format = v.getBackground().getOpacity();
lp.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
| WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE;
lp.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_SHOW_FOR_ALL_USERS;
((WindowManager)mContext.getSystemService(
Context.WINDOW_SERVICE)).addView(v, lp);
}
public void noteWakeupAlarm(IIntentSender sender) {
if (!(sender instanceof PendingIntentRecord)) {
return;
}
BatteryStatsImpl stats = mBatteryStatsService.getActiveStatistics();
synchronized (stats) {
if (mBatteryStatsService.isOnBattery()) {
mBatteryStatsService.enforceCallingPermission();
PendingIntentRecord rec = (PendingIntentRecord)sender;
int MY_UID = Binder.getCallingUid();
int uid = rec.uid == MY_UID ? Process.SYSTEM_UID : rec.uid;
BatteryStatsImpl.Uid.Pkg pkg =
stats.getPackageStatsLocked(uid, rec.key.packageName);
pkg.incWakeupsLocked();
}
}
}
public boolean killPids(int[] pids, String pReason, boolean secure) {
if (Binder.getCallingUid() != Process.SYSTEM_UID) {
throw new SecurityException("killPids only available to the system");
}
String reason = (pReason == null) ? "Unknown" : pReason;
// XXX Note: don't acquire main activity lock here, because the window
// manager calls in with its locks held.
boolean killed = false;
synchronized (mPidsSelfLocked) {
int[] types = new int[pids.length];
int worstType = 0;
for (int i=0; i worstType) {
worstType = type;
}
}
}
// If the worst oom_adj is somewhere in the cached proc LRU range,
// then constrain it so we will kill all cached procs.
if (worstType < ProcessList.CACHED_APP_MAX_ADJ
&& worstType > ProcessList.CACHED_APP_MIN_ADJ) {
worstType = ProcessList.CACHED_APP_MIN_ADJ;
}
// If this is not a secure call, don't let it kill processes that
// are important.
if (!secure && worstType < ProcessList.SERVICE_ADJ) {
worstType = ProcessList.SERVICE_ADJ;
}
Slog.w(TAG, "Killing processes " + reason + " at adjustment " + worstType);
for (int i=0; i= worstType && !proc.killedByAm) {
killUnneededProcessLocked(proc, reason);
killed = true;
}
}
}
return killed;
}
@Override
public void killUid(int uid, String reason) {
if (Binder.getCallingUid() != Process.SYSTEM_UID) {
throw new SecurityException("killUid only available to the system");
}
synchronized (this) {
killPackageProcessesLocked(null, UserHandle.getAppId(uid), UserHandle.getUserId(uid),
ProcessList.FOREGROUND_APP_ADJ-1, false, true, true, false,
reason != null ? reason : "kill uid");
}
}
@Override
public boolean killProcessesBelowForeground(String reason) {
if (Binder.getCallingUid() != Process.SYSTEM_UID) {
throw new SecurityException("killProcessesBelowForeground() only available to system");
}
return killProcessesBelowAdj(ProcessList.FOREGROUND_APP_ADJ, reason);
}
private boolean killProcessesBelowAdj(int belowAdj, String reason) {
if (Binder.getCallingUid() != Process.SYSTEM_UID) {
throw new SecurityException("killProcessesBelowAdj() only available to system");
}
boolean killed = false;
synchronized (mPidsSelfLocked) {
final int size = mPidsSelfLocked.size();
for (int i = 0; i < size; i++) {
final int pid = mPidsSelfLocked.keyAt(i);
final ProcessRecord proc = mPidsSelfLocked.valueAt(i);
if (proc == null) continue;
final int adj = proc.setAdj;
if (adj > belowAdj && !proc.killedByAm) {
killUnneededProcessLocked(proc, reason);
killed = true;
}
}
}
return killed;
}
@Override
public void hang(final IBinder who, boolean allowRestart) {
if (checkCallingPermission(android.Manifest.permission.SET_ACTIVITY_WATCHER)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.SET_ACTIVITY_WATCHER);
}
final IBinder.DeathRecipient death = new DeathRecipient() {
@Override
public void binderDied() {
synchronized (this) {
notifyAll();
}
}
};
try {
who.linkToDeath(death, 0);
} catch (RemoteException e) {
Slog.w(TAG, "hang: given caller IBinder is already dead.");
return;
}
synchronized (this) {
Watchdog.getInstance().setAllowRestart(allowRestart);
Slog.i(TAG, "Hanging system process at request of pid " + Binder.getCallingPid());
synchronized (death) {
while (who.isBinderAlive()) {
try {
death.wait();
} catch (InterruptedException e) {
}
}
}
Watchdog.getInstance().setAllowRestart(true);
}
}
@Override
public void restart() {
if (checkCallingPermission(android.Manifest.permission.SET_ACTIVITY_WATCHER)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.SET_ACTIVITY_WATCHER);
}
Log.i(TAG, "Sending shutdown broadcast...");
BroadcastReceiver br = new BroadcastReceiver() {
@Override public void onReceive(Context context, Intent intent) {
// Now the broadcast is done, finish up the low-level shutdown.
Log.i(TAG, "Shutting down activity manager...");
shutdown(10000);
Log.i(TAG, "Shutdown complete, restarting!");
Process.killProcess(Process.myPid());
System.exit(10);
}
};
// First send the high-level shut down broadcast.
Intent intent = new Intent(Intent.ACTION_SHUTDOWN);
intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
intent.putExtra(Intent.EXTRA_SHUTDOWN_USERSPACE_ONLY, true);
/* For now we are not doing a clean shutdown, because things seem to get unhappy.
mContext.sendOrderedBroadcastAsUser(intent,
UserHandle.ALL, null, br, mHandler, 0, null, null);
*/
br.onReceive(mContext, intent);
}
private long getLowRamTimeSinceIdle(long now) {
return mLowRamTimeSinceLastIdle + (mLowRamStartTime > 0 ? (now-mLowRamStartTime) : 0);
}
@Override
public void performIdleMaintenance() {
if (checkCallingPermission(android.Manifest.permission.SET_ACTIVITY_WATCHER)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.SET_ACTIVITY_WATCHER);
}
synchronized (this) {
final long now = SystemClock.uptimeMillis();
final long timeSinceLastIdle = now - mLastIdleTime;
final long lowRamSinceLastIdle = getLowRamTimeSinceIdle(now);
mLastIdleTime = now;
mLowRamTimeSinceLastIdle = 0;
if (mLowRamStartTime != 0) {
mLowRamStartTime = now;
}
StringBuilder sb = new StringBuilder(128);
sb.append("Idle maintenance over ");
TimeUtils.formatDuration(timeSinceLastIdle, sb);
sb.append(" low RAM for ");
TimeUtils.formatDuration(lowRamSinceLastIdle, sb);
Slog.i(TAG, sb.toString());
// If at least 1/3 of our time since the last idle period has been spent
// with RAM low, then we want to kill processes.
boolean doKilling = lowRamSinceLastIdle > (timeSinceLastIdle/3);
for (int i = mLruProcesses.size() - 1 ; i >= 0 ; i--) {
ProcessRecord proc = mLruProcesses.get(i);
if (proc.notCachedSinceIdle) {
if (proc.setProcState > ActivityManager.PROCESS_STATE_TOP
&& proc.setProcState <= ActivityManager.PROCESS_STATE_SERVICE) {
if (doKilling && proc.initialIdlePss != 0
&& proc.lastPss > ((proc.initialIdlePss*3)/2)) {
killUnneededProcessLocked(proc, "idle maint (pss " + proc.lastPss
+ " from " + proc.initialIdlePss + ")");
}
}
} else if (proc.setProcState < ActivityManager.PROCESS_STATE_HOME) {
proc.notCachedSinceIdle = true;
proc.initialIdlePss = 0;
proc.nextPssTime = ProcessList.computeNextPssTime(proc.curProcState, true,
mSleeping, now);
}
}
mHandler.removeMessages(REQUEST_ALL_PSS_MSG);
mHandler.sendEmptyMessageDelayed(REQUEST_ALL_PSS_MSG, 2*60*1000);
}
}
public final void startRunning(String pkg, String cls, String action,
String data) {
synchronized(this) {
if (mStartRunning) {
return;
}
mStartRunning = true;
mTopComponent = pkg != null && cls != null
? new ComponentName(pkg, cls) : null;
mTopAction = action != null ? action : Intent.ACTION_MAIN;
mTopData = data;
if (!mSystemReady) {
return;
}
}
systemReady(null);
}
private void retrieveSettings() {
final ContentResolver resolver = mContext.getContentResolver();
String debugApp = Settings.Global.getString(
resolver, Settings.Global.DEBUG_APP);
boolean waitForDebugger = Settings.Global.getInt(
resolver, Settings.Global.WAIT_FOR_DEBUGGER, 0) != 0;
boolean alwaysFinishActivities = Settings.Global.getInt(
resolver, Settings.Global.ALWAYS_FINISH_ACTIVITIES, 0) != 0;
boolean forceRtl = Settings.Global.getInt(
resolver, Settings.Global.DEVELOPMENT_FORCE_RTL, 0) != 0;
// Transfer any global setting for forcing RTL layout, into a System Property
SystemProperties.set(Settings.Global.DEVELOPMENT_FORCE_RTL, forceRtl ? "1":"0");
Configuration configuration = new Configuration();
Settings.System.getConfiguration(resolver, configuration);
if (forceRtl) {
// This will take care of setting the correct layout direction flags
configuration.setLayoutDirection(configuration.locale);
}
synchronized (this) {
mDebugApp = mOrigDebugApp = debugApp;
mWaitForDebugger = mOrigWaitForDebugger = waitForDebugger;
mAlwaysFinishActivities = alwaysFinishActivities;
// This happens before any activities are started, so we can
// change mConfiguration in-place.
updateConfigurationLocked(configuration, null, false, true);
if (DEBUG_CONFIGURATION) Slog.v(TAG, "Initial config: " + mConfiguration);
}
}
public boolean testIsSystemReady() {
// no need to synchronize(this) just to read & return the value
return mSystemReady;
}
private static File getCalledPreBootReceiversFile() {
File dataDir = Environment.getDataDirectory();
File systemDir = new File(dataDir, "system");
File fname = new File(systemDir, "called_pre_boots.dat");
return fname;
}
static final int LAST_DONE_VERSION = 10000;
private static ArrayList readLastDonePreBootReceivers() {
ArrayList lastDoneReceivers = new ArrayList();
File file = getCalledPreBootReceiversFile();
FileInputStream fis = null;
try {
fis = new FileInputStream(file);
DataInputStream dis = new DataInputStream(new BufferedInputStream(fis, 2048));
int fvers = dis.readInt();
if (fvers == LAST_DONE_VERSION) {
String vers = dis.readUTF();
String codename = dis.readUTF();
String build = dis.readUTF();
if (android.os.Build.VERSION.RELEASE.equals(vers)
&& android.os.Build.VERSION.CODENAME.equals(codename)
&& android.os.Build.VERSION.INCREMENTAL.equals(build)) {
int num = dis.readInt();
while (num > 0) {
num--;
String pkg = dis.readUTF();
String cls = dis.readUTF();
lastDoneReceivers.add(new ComponentName(pkg, cls));
}
}
}
} catch (FileNotFoundException e) {
} catch (IOException e) {
Slog.w(TAG, "Failure reading last done pre-boot receivers", e);
} finally {
if (fis != null) {
try {
fis.close();
} catch (IOException e) {
}
}
}
return lastDoneReceivers;
}
private static void writeLastDonePreBootReceivers(ArrayList list) {
File file = getCalledPreBootReceiversFile();
FileOutputStream fos = null;
DataOutputStream dos = null;
try {
Slog.i(TAG, "Writing new set of last done pre-boot receivers...");
fos = new FileOutputStream(file);
dos = new DataOutputStream(new BufferedOutputStream(fos, 2048));
dos.writeInt(LAST_DONE_VERSION);
dos.writeUTF(android.os.Build.VERSION.RELEASE);
dos.writeUTF(android.os.Build.VERSION.CODENAME);
dos.writeUTF(android.os.Build.VERSION.INCREMENTAL);
dos.writeInt(list.size());
for (int i=0; i ris = null;
try {
ris = AppGlobals.getPackageManager().queryIntentReceivers(
intent, null, 0, 0);
} catch (RemoteException e) {
}
if (ris != null) {
for (int i=ris.size()-1; i>=0; i--) {
if ((ris.get(i).activityInfo.applicationInfo.flags
&ApplicationInfo.FLAG_SYSTEM) == 0) {
ris.remove(i);
}
}
intent.addFlags(Intent.FLAG_RECEIVER_BOOT_UPGRADE);
ArrayList lastDoneReceivers = readLastDonePreBootReceivers();
final ArrayList doneReceivers = new ArrayList();
for (int i=0; i procsToKill = null;
synchronized(mPidsSelfLocked) {
for (int i=mPidsSelfLocked.size()-1; i>=0; i--) {
ProcessRecord proc = mPidsSelfLocked.valueAt(i);
if (!isAllowedWhileBooting(proc.info)){
if (procsToKill == null) {
procsToKill = new ArrayList();
}
procsToKill.add(proc);
}
}
}
synchronized(this) {
if (procsToKill != null) {
for (int i=procsToKill.size()-1; i>=0; i--) {
ProcessRecord proc = procsToKill.get(i);
Slog.i(TAG, "Removing system update proc: " + proc);
removeProcessLocked(proc, true, false, "system update done");
}
}
// Now that we have cleaned up any update processes, we
// are ready to start launching real processes and know that
// we won't trample on them any more.
mProcessesReady = true;
}
Slog.i(TAG, "System now ready");
EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_AMS_READY,
SystemClock.uptimeMillis());
synchronized(this) {
// Make sure we have no pre-ready processes sitting around.
if (mFactoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL) {
ResolveInfo ri = mContext.getPackageManager()
.resolveActivity(new Intent(Intent.ACTION_FACTORY_TEST),
STOCK_PM_FLAGS);
CharSequence errorMsg = null;
if (ri != null) {
ActivityInfo ai = ri.activityInfo;
ApplicationInfo app = ai.applicationInfo;
if ((app.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
mTopAction = Intent.ACTION_FACTORY_TEST;
mTopData = null;
mTopComponent = new ComponentName(app.packageName,
ai.name);
} else {
errorMsg = mContext.getResources().getText(
com.android.internal.R.string.factorytest_not_system);
}
} else {
errorMsg = mContext.getResources().getText(
com.android.internal.R.string.factorytest_no_action);
}
if (errorMsg != null) {
mTopAction = null;
mTopData = null;
mTopComponent = null;
Message msg = Message.obtain();
msg.what = SHOW_FACTORY_ERROR_MSG;
msg.getData().putCharSequence("msg", errorMsg);
mHandler.sendMessage(msg);
}
}
}
retrieveSettings();
synchronized (this) {
readGrantedUriPermissionsLocked();
}
if (goingCallback != null) goingCallback.run();
synchronized (this) {
if (mFactoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL) {
try {
List apps = AppGlobals.getPackageManager().
getPersistentApplications(STOCK_PM_FLAGS);
if (apps != null) {
int N = apps.size();
int i;
for (i=0; i 0 && app.pid != MY_PID) {
handleAppCrashLocked(app);
killUnneededProcessLocked(app, "user request after error");
}
}
}
private boolean handleAppCrashLocked(ProcessRecord app) {
if (mHeadless) {
Log.e(TAG, "handleAppCrashLocked: " + app.processName);
return false;
}
long now = SystemClock.uptimeMillis();
Long crashTime;
if (!app.isolated) {
crashTime = mProcessCrashTimes.get(app.info.processName, app.uid);
} else {
crashTime = null;
}
if (crashTime != null && now < crashTime+ProcessList.MIN_CRASH_INTERVAL) {
// This process loses!
Slog.w(TAG, "Process " + app.info.processName
+ " has crashed too many times: killing!");
EventLog.writeEvent(EventLogTags.AM_PROCESS_CRASHED_TOO_MUCH,
app.userId, app.info.processName, app.uid);
mStackSupervisor.handleAppCrashLocked(app);
if (!app.persistent) {
// We don't want to start this process again until the user
// explicitly does so... but for persistent process, we really
// need to keep it running. If a persistent process is actually
// repeatedly crashing, then badness for everyone.
EventLog.writeEvent(EventLogTags.AM_PROC_BAD, app.userId, app.uid,
app.info.processName);
if (!app.isolated) {
// XXX We don't have a way to mark isolated processes
// as bad, since they don't have a peristent identity.
mBadProcesses.put(app.info.processName, app.uid, now);
mProcessCrashTimes.remove(app.info.processName, app.uid);
}
app.bad = true;
app.removed = true;
// Don't let services in this process be restarted and potentially
// annoy the user repeatedly. Unless it is persistent, since those
// processes run critical code.
removeProcessLocked(app, false, false, "crash");
mStackSupervisor.resumeTopActivitiesLocked();
return false;
}
mStackSupervisor.resumeTopActivitiesLocked();
} else {
mStackSupervisor.finishTopRunningActivityLocked(app);
}
// Bump up the crash count of any services currently running in the proc.
for (int i=app.services.size()-1; i>=0; i--) {
// Any services running in the application need to be placed
// back in the pending list.
ServiceRecord sr = app.services.valueAt(i);
sr.crashCount++;
}
// If the crashing process is what we consider to be the "home process" and it has been
// replaced by a third-party app, clear the package preferred activities from packages
// with a home activity running in the process to prevent a repeatedly crashing app
// from blocking the user to manually clear the list.
final ArrayList activities = app.activities;
if (app == mHomeProcess && activities.size() > 0
&& (mHomeProcess.info.flags & ApplicationInfo.FLAG_SYSTEM) == 0) {
for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) {
final ActivityRecord r = activities.get(activityNdx);
if (r.isHomeActivity()) {
Log.i(TAG, "Clearing package preferred activities from " + r.packageName);
try {
ActivityThread.getPackageManager()
.clearPackagePreferredActivities(r.packageName);
} catch (RemoteException c) {
// pm is in same process, this will never happen.
}
}
}
}
if (!app.isolated) {
// XXX Can't keep track of crash times for isolated processes,
// because they don't have a perisistent identity.
mProcessCrashTimes.put(app.info.processName, app.uid, now);
}
return true;
}
void startAppProblemLocked(ProcessRecord app) {
if (app.userId == mCurrentUserId) {
app.errorReportReceiver = ApplicationErrorReport.getErrorReportReceiver(
mContext, app.info.packageName, app.info.flags);
} else {
// If this app is not running under the current user, then we
// can't give it a report button because that would require
// launching the report UI under a different user.
app.errorReportReceiver = null;
}
skipCurrentReceiverLocked(app);
}
void skipCurrentReceiverLocked(ProcessRecord app) {
for (BroadcastQueue queue : mBroadcastQueues) {
queue.skipCurrentReceiverLocked(app);
}
}
/**
* Used by {@link com.android.internal.os.RuntimeInit} to report when an application crashes.
* The application process will exit immediately after this call returns.
* @param app object of the crashing app, null for the system server
* @param crashInfo describing the exception
*/
public void handleApplicationCrash(IBinder app, ApplicationErrorReport.CrashInfo crashInfo) {
ProcessRecord r = findAppProcess(app, "Crash");
final String processName = app == null ? "system_server"
: (r == null ? "unknown" : r.processName);
handleApplicationCrashInner("crash", r, processName, crashInfo);
}
/* Native crash reporting uses this inner version because it needs to be somewhat
* decoupled from the AM-managed cleanup lifecycle
*/
void handleApplicationCrashInner(String eventType, ProcessRecord r, String processName,
ApplicationErrorReport.CrashInfo crashInfo) {
EventLog.writeEvent(EventLogTags.AM_CRASH, Binder.getCallingPid(),
UserHandle.getUserId(Binder.getCallingUid()), processName,
r == null ? -1 : r.info.flags,
crashInfo.exceptionClassName,
crashInfo.exceptionMessage,
crashInfo.throwFileName,
crashInfo.throwLineNumber);
addErrorToDropBox(eventType, r, processName, null, null, null, null, null, crashInfo);
crashApplication(r, crashInfo);
}
public void handleApplicationStrictModeViolation(
IBinder app,
int violationMask,
StrictMode.ViolationInfo info) {
ProcessRecord r = findAppProcess(app, "StrictMode");
if (r == null) {
return;
}
if ((violationMask & StrictMode.PENALTY_DROPBOX) != 0) {
Integer stackFingerprint = info.hashCode();
boolean logIt = true;
synchronized (mAlreadyLoggedViolatedStacks) {
if (mAlreadyLoggedViolatedStacks.contains(stackFingerprint)) {
logIt = false;
// TODO: sub-sample into EventLog for these, with
// the info.durationMillis? Then we'd get
// the relative pain numbers, without logging all
// the stack traces repeatedly. We'd want to do
// likewise in the client code, which also does
// dup suppression, before the Binder call.
} else {
if (mAlreadyLoggedViolatedStacks.size() >= MAX_DUP_SUPPRESSED_STACKS) {
mAlreadyLoggedViolatedStacks.clear();
}
mAlreadyLoggedViolatedStacks.add(stackFingerprint);
}
}
if (logIt) {
logStrictModeViolationToDropBox(r, info);
}
}
if ((violationMask & StrictMode.PENALTY_DIALOG) != 0) {
AppErrorResult result = new AppErrorResult();
synchronized (this) {
final long origId = Binder.clearCallingIdentity();
Message msg = Message.obtain();
msg.what = SHOW_STRICT_MODE_VIOLATION_MSG;
HashMap data = new HashMap();
data.put("result", result);
data.put("app", r);
data.put("violationMask", violationMask);
data.put("info", info);
msg.obj = data;
mHandler.sendMessage(msg);
Binder.restoreCallingIdentity(origId);
}
int res = result.get();
Slog.w(TAG, "handleApplicationStrictModeViolation; res=" + res);
}
}
// Depending on the policy in effect, there could be a bunch of
// these in quick succession so we try to batch these together to
// minimize disk writes, number of dropbox entries, and maximize
// compression, by having more fewer, larger records.
private void logStrictModeViolationToDropBox(
ProcessRecord process,
StrictMode.ViolationInfo info) {
if (info == null) {
return;
}
final boolean isSystemApp = process == null ||
(process.info.flags & (ApplicationInfo.FLAG_SYSTEM |
ApplicationInfo.FLAG_UPDATED_SYSTEM_APP)) != 0;
final String processName = process == null ? "unknown" : process.processName;
final String dropboxTag = isSystemApp ? "system_app_strictmode" : "data_app_strictmode";
final DropBoxManager dbox = (DropBoxManager)
mContext.getSystemService(Context.DROPBOX_SERVICE);
// Exit early if the dropbox isn't configured to accept this report type.
if (dbox == null || !dbox.isTagEnabled(dropboxTag)) return;
boolean bufferWasEmpty;
boolean needsFlush;
final StringBuilder sb = isSystemApp ? mStrictModeBuffer : new StringBuilder(1024);
synchronized (sb) {
bufferWasEmpty = sb.length() == 0;
appendDropBoxProcessHeaders(process, processName, sb);
sb.append("Build: ").append(Build.FINGERPRINT).append("\n");
sb.append("System-App: ").append(isSystemApp).append("\n");
sb.append("Uptime-Millis: ").append(info.violationUptimeMillis).append("\n");
if (info.violationNumThisLoop != 0) {
sb.append("Loop-Violation-Number: ").append(info.violationNumThisLoop).append("\n");
}
if (info.numAnimationsRunning != 0) {
sb.append("Animations-Running: ").append(info.numAnimationsRunning).append("\n");
}
if (info.broadcastIntentAction != null) {
sb.append("Broadcast-Intent-Action: ").append(info.broadcastIntentAction).append("\n");
}
if (info.durationMillis != -1) {
sb.append("Duration-Millis: ").append(info.durationMillis).append("\n");
}
if (info.numInstances != -1) {
sb.append("Instance-Count: ").append(info.numInstances).append("\n");
}
if (info.tags != null) {
for (String tag : info.tags) {
sb.append("Span-Tag: ").append(tag).append("\n");
}
}
sb.append("\n");
if (info.crashInfo != null && info.crashInfo.stackTrace != null) {
sb.append(info.crashInfo.stackTrace);
}
sb.append("\n");
// Only buffer up to ~64k. Various logging bits truncate
// things at 128k.
needsFlush = (sb.length() > 64 * 1024);
}
// Flush immediately if the buffer's grown too large, or this
// is a non-system app. Non-system apps are isolated with a
// different tag & policy and not batched.
//
// Batching is useful during internal testing with
// StrictMode settings turned up high. Without batching,
// thousands of separate files could be created on boot.
if (!isSystemApp || needsFlush) {
new Thread("Error dump: " + dropboxTag) {
@Override
public void run() {
String report;
synchronized (sb) {
report = sb.toString();
sb.delete(0, sb.length());
sb.trimToSize();
}
if (report.length() != 0) {
dbox.addText(dropboxTag, report);
}
}
}.start();
return;
}
// System app batching:
if (!bufferWasEmpty) {
// An existing dropbox-writing thread is outstanding, so
// we don't need to start it up. The existing thread will
// catch the buffer appends we just did.
return;
}
// Worker thread to both batch writes and to avoid blocking the caller on I/O.
// (After this point, we shouldn't access AMS internal data structures.)
new Thread("Error dump: " + dropboxTag) {
@Override
public void run() {
// 5 second sleep to let stacks arrive and be batched together
try {
Thread.sleep(5000); // 5 seconds
} catch (InterruptedException e) {}
String errorReport;
synchronized (mStrictModeBuffer) {
errorReport = mStrictModeBuffer.toString();
if (errorReport.length() == 0) {
return;
}
mStrictModeBuffer.delete(0, mStrictModeBuffer.length());
mStrictModeBuffer.trimToSize();
}
dbox.addText(dropboxTag, errorReport);
}
}.start();
}
/**
* Used by {@link Log} via {@link com.android.internal.os.RuntimeInit} to report serious errors.
* @param app object of the crashing app, null for the system server
* @param tag reported by the caller
* @param crashInfo describing the context of the error
* @return true if the process should exit immediately (WTF is fatal)
*/
public boolean handleApplicationWtf(IBinder app, String tag,
ApplicationErrorReport.CrashInfo crashInfo) {
ProcessRecord r = findAppProcess(app, "WTF");
final String processName = app == null ? "system_server"
: (r == null ? "unknown" : r.processName);
EventLog.writeEvent(EventLogTags.AM_WTF,
UserHandle.getUserId(Binder.getCallingUid()), Binder.getCallingPid(),
processName,
r == null ? -1 : r.info.flags,
tag, crashInfo.exceptionMessage);
addErrorToDropBox("wtf", r, processName, null, null, tag, null, null, crashInfo);
if (r != null && r.pid != Process.myPid() &&
Settings.Global.getInt(mContext.getContentResolver(),
Settings.Global.WTF_IS_FATAL, 0) != 0) {
crashApplication(r, crashInfo);
return true;
} else {
return false;
}
}
/**
* @param app object of some object (as stored in {@link com.android.internal.os.RuntimeInit})
* @return the corresponding {@link ProcessRecord} object, or null if none could be found
*/
private ProcessRecord findAppProcess(IBinder app, String reason) {
if (app == null) {
return null;
}
synchronized (this) {
final int NP = mProcessNames.getMap().size();
for (int ip=0; ip apps = mProcessNames.getMap().valueAt(ip);
final int NA = apps.size();
for (int ia=0; ia 0) {
sb.append("\n");
// Merge several logcat streams, and take the last N lines
InputStreamReader input = null;
try {
java.lang.Process logcat = new ProcessBuilder("/system/bin/logcat",
"-v", "time", "-b", "events", "-b", "system", "-b", "main",
"-t", String.valueOf(lines)).redirectErrorStream(true).start();
try { logcat.getOutputStream().close(); } catch (IOException e) {}
try { logcat.getErrorStream().close(); } catch (IOException e) {}
input = new InputStreamReader(logcat.getInputStream());
int num;
char[] buf = new char[8192];
while ((num = input.read(buf)) > 0) sb.append(buf, 0, num);
} catch (IOException e) {
Slog.e(TAG, "Error running logcat", e);
} finally {
if (input != null) try { input.close(); } catch (IOException e) {}
}
}
dbox.addText(dropboxTag, sb.toString());
}
};
if (process == null) {
// If process is null, we are being called from some internal code
// and may be about to die -- run this synchronously.
worker.run();
} else {
worker.start();
}
}
/**
* Bring up the "unexpected error" dialog box for a crashing app.
* Deal with edge cases (intercepts from instrumented applications,
* ActivityController, error intent receivers, that sort of thing).
* @param r the application crashing
* @param crashInfo describing the failure
*/
private void crashApplication(ProcessRecord r, ApplicationErrorReport.CrashInfo crashInfo) {
long timeMillis = System.currentTimeMillis();
String shortMsg = crashInfo.exceptionClassName;
String longMsg = crashInfo.exceptionMessage;
String stackTrace = crashInfo.stackTrace;
if (shortMsg != null && longMsg != null) {
longMsg = shortMsg + ": " + longMsg;
} else if (shortMsg != null) {
longMsg = shortMsg;
}
AppErrorResult result = new AppErrorResult();
synchronized (this) {
if (mController != null) {
try {
String name = r != null ? r.processName : null;
int pid = r != null ? r.pid : Binder.getCallingPid();
if (!mController.appCrashed(name, pid,
shortMsg, longMsg, timeMillis, crashInfo.stackTrace)) {
Slog.w(TAG, "Force-killing crashed app " + name
+ " at watcher's request");
Process.killProcess(pid);
return;
}
} catch (RemoteException e) {
mController = null;
Watchdog.getInstance().setActivityController(null);
}
}
final long origId = Binder.clearCallingIdentity();
// If this process is running instrumentation, finish it.
if (r != null && r.instrumentationClass != null) {
Slog.w(TAG, "Error in app " + r.processName
+ " running instrumentation " + r.instrumentationClass + ":");
if (shortMsg != null) Slog.w(TAG, " " + shortMsg);
if (longMsg != null) Slog.w(TAG, " " + longMsg);
Bundle info = new Bundle();
info.putString("shortMsg", shortMsg);
info.putString("longMsg", longMsg);
finishInstrumentationLocked(r, Activity.RESULT_CANCELED, info);
Binder.restoreCallingIdentity(origId);
return;
}
// If we can't identify the process or it's already exceeded its crash quota,
// quit right away without showing a crash dialog.
if (r == null || !makeAppCrashingLocked(r, shortMsg, longMsg, stackTrace)) {
Binder.restoreCallingIdentity(origId);
return;
}
Message msg = Message.obtain();
msg.what = SHOW_ERROR_MSG;
HashMap data = new HashMap();
data.put("result", result);
data.put("app", r);
msg.obj = data;
mHandler.sendMessage(msg);
Binder.restoreCallingIdentity(origId);
}
int res = result.get();
Intent appErrorIntent = null;
synchronized (this) {
if (r != null && !r.isolated) {
// XXX Can't keep track of crash time for isolated processes,
// since they don't have a persistent identity.
mProcessCrashTimes.put(r.info.processName, r.uid,
SystemClock.uptimeMillis());
}
if (res == AppErrorDialog.FORCE_QUIT_AND_REPORT) {
appErrorIntent = createAppErrorIntentLocked(r, timeMillis, crashInfo);
}
}
if (appErrorIntent != null) {
try {
mContext.startActivityAsUser(appErrorIntent, new UserHandle(r.userId));
} catch (ActivityNotFoundException e) {
Slog.w(TAG, "bug report receiver dissappeared", e);
}
}
}
Intent createAppErrorIntentLocked(ProcessRecord r,
long timeMillis, ApplicationErrorReport.CrashInfo crashInfo) {
ApplicationErrorReport report = createAppErrorReportLocked(r, timeMillis, crashInfo);
if (report == null) {
return null;
}
Intent result = new Intent(Intent.ACTION_APP_ERROR);
result.setComponent(r.errorReportReceiver);
result.putExtra(Intent.EXTRA_BUG_REPORT, report);
result.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
return result;
}
private ApplicationErrorReport createAppErrorReportLocked(ProcessRecord r,
long timeMillis, ApplicationErrorReport.CrashInfo crashInfo) {
if (r.errorReportReceiver == null) {
return null;
}
if (!r.crashing && !r.notResponding && !r.forceCrashReport) {
return null;
}
ApplicationErrorReport report = new ApplicationErrorReport();
report.packageName = r.info.packageName;
report.installerPackageName = r.errorReportReceiver.getPackageName();
report.processName = r.processName;
report.time = timeMillis;
report.systemApp = (r.info.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
if (r.crashing || r.forceCrashReport) {
report.type = ApplicationErrorReport.TYPE_CRASH;
report.crashInfo = crashInfo;
} else if (r.notResponding) {
report.type = ApplicationErrorReport.TYPE_ANR;
report.anrInfo = new ApplicationErrorReport.AnrInfo();
report.anrInfo.activity = r.notRespondingReport.tag;
report.anrInfo.cause = r.notRespondingReport.shortMsg;
report.anrInfo.info = r.notRespondingReport.longMsg;
}
return report;
}
public List getProcessesInErrorState() {
enforceNotIsolatedCaller("getProcessesInErrorState");
// assume our apps are happy - lazy create the list
List errList = null;
final boolean allUsers = ActivityManager.checkUidPermission(
android.Manifest.permission.INTERACT_ACROSS_USERS_FULL,
Binder.getCallingUid()) == PackageManager.PERMISSION_GRANTED;
int userId = UserHandle.getUserId(Binder.getCallingUid());
synchronized (this) {
// iterate across all processes
for (int i=mLruProcesses.size()-1; i>=0; i--) {
ProcessRecord app = mLruProcesses.get(i);
if (!allUsers && app.userId != userId) {
continue;
}
if ((app.thread != null) && (app.crashing || app.notResponding)) {
// This one's in trouble, so we'll generate a report for it
// crashes are higher priority (in case there's a crash *and* an anr)
ActivityManager.ProcessErrorStateInfo report = null;
if (app.crashing) {
report = app.crashingReport;
} else if (app.notResponding) {
report = app.notRespondingReport;
}
if (report != null) {
if (errList == null) {
errList = new ArrayList(1);
}
errList.add(report);
} else {
Slog.w(TAG, "Missing app error report, app = " + app.processName +
" crashing = " + app.crashing +
" notResponding = " + app.notResponding);
}
}
}
}
return errList;
}
static int oomAdjToImportance(int adj, ActivityManager.RunningAppProcessInfo currApp) {
if (adj >= ProcessList.CACHED_APP_MIN_ADJ) {
if (currApp != null) {
currApp.lru = adj - ProcessList.CACHED_APP_MIN_ADJ + 1;
}
return ActivityManager.RunningAppProcessInfo.IMPORTANCE_BACKGROUND;
} else if (adj >= ProcessList.SERVICE_B_ADJ) {
return ActivityManager.RunningAppProcessInfo.IMPORTANCE_SERVICE;
} else if (adj >= ProcessList.HOME_APP_ADJ) {
if (currApp != null) {
currApp.lru = 0;
}
return ActivityManager.RunningAppProcessInfo.IMPORTANCE_BACKGROUND;
} else if (adj >= ProcessList.SERVICE_ADJ) {
return ActivityManager.RunningAppProcessInfo.IMPORTANCE_SERVICE;
} else if (adj >= ProcessList.HEAVY_WEIGHT_APP_ADJ) {
return ActivityManager.RunningAppProcessInfo.IMPORTANCE_CANT_SAVE_STATE;
} else if (adj >= ProcessList.PERCEPTIBLE_APP_ADJ) {
return ActivityManager.RunningAppProcessInfo.IMPORTANCE_PERCEPTIBLE;
} else if (adj >= ProcessList.VISIBLE_APP_ADJ) {
return ActivityManager.RunningAppProcessInfo.IMPORTANCE_VISIBLE;
} else {
return ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND;
}
}
private void fillInProcMemInfo(ProcessRecord app,
ActivityManager.RunningAppProcessInfo outInfo) {
outInfo.pid = app.pid;
outInfo.uid = app.info.uid;
if (mHeavyWeightProcess == app) {
outInfo.flags |= ActivityManager.RunningAppProcessInfo.FLAG_CANT_SAVE_STATE;
}
if (app.persistent) {
outInfo.flags |= ActivityManager.RunningAppProcessInfo.FLAG_PERSISTENT;
}
if (app.hasActivities) {
outInfo.flags |= ActivityManager.RunningAppProcessInfo.FLAG_HAS_ACTIVITIES;
}
outInfo.lastTrimLevel = app.trimMemoryLevel;
int adj = app.curAdj;
outInfo.importance = oomAdjToImportance(adj, outInfo);
outInfo.importanceReasonCode = app.adjTypeCode;
}
public List getRunningAppProcesses() {
enforceNotIsolatedCaller("getRunningAppProcesses");
// Lazy instantiation of list
List runList = null;
final boolean allUsers = ActivityManager.checkUidPermission(
android.Manifest.permission.INTERACT_ACROSS_USERS_FULL,
Binder.getCallingUid()) == PackageManager.PERMISSION_GRANTED;
int userId = UserHandle.getUserId(Binder.getCallingUid());
synchronized (this) {
// Iterate across all processes
for (int i=mLruProcesses.size()-1; i>=0; i--) {
ProcessRecord app = mLruProcesses.get(i);
if (!allUsers && app.userId != userId) {
continue;
}
if ((app.thread != null) && (!app.crashing && !app.notResponding)) {
// Generate process state info for running application
ActivityManager.RunningAppProcessInfo currApp =
new ActivityManager.RunningAppProcessInfo(app.processName,
app.pid, app.getPackageList());
fillInProcMemInfo(app, currApp);
if (app.adjSource instanceof ProcessRecord) {
currApp.importanceReasonPid = ((ProcessRecord)app.adjSource).pid;
currApp.importanceReasonImportance = oomAdjToImportance(
app.adjSourceOom, null);
} else if (app.adjSource instanceof ActivityRecord) {
ActivityRecord r = (ActivityRecord)app.adjSource;
if (r.app != null) currApp.importanceReasonPid = r.app.pid;
}
if (app.adjTarget instanceof ComponentName) {
currApp.importanceReasonComponent = (ComponentName)app.adjTarget;
}
//Slog.v(TAG, "Proc " + app.processName + ": imp=" + currApp.importance
// + " lru=" + currApp.lru);
if (runList == null) {
runList = new ArrayList();
}
runList.add(currApp);
}
}
}
return runList;
}
public List getRunningExternalApplications() {
enforceNotIsolatedCaller("getRunningExternalApplications");
List runningApps = getRunningAppProcesses();
List retList = new ArrayList();
if (runningApps != null && runningApps.size() > 0) {
Set extList = new HashSet();
for (ActivityManager.RunningAppProcessInfo app : runningApps) {
if (app.pkgList != null) {
for (String pkg : app.pkgList) {
extList.add(pkg);
}
}
}
IPackageManager pm = AppGlobals.getPackageManager();
for (String pkg : extList) {
try {
ApplicationInfo info = pm.getApplicationInfo(pkg, 0, UserHandle.getCallingUserId());
if ((info.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0) {
retList.add(info);
}
} catch (RemoteException e) {
}
}
}
return retList;
}
@Override
public void getMyMemoryState(ActivityManager.RunningAppProcessInfo outInfo) {
enforceNotIsolatedCaller("getMyMemoryState");
synchronized (this) {
ProcessRecord proc;
synchronized (mPidsSelfLocked) {
proc = mPidsSelfLocked.get(Binder.getCallingPid());
}
fillInProcMemInfo(proc, outInfo);
}
}
@Override
protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
if (checkCallingPermission(android.Manifest.permission.DUMP)
!= PackageManager.PERMISSION_GRANTED) {
pw.println("Permission Denial: can't dump ActivityManager from from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid()
+ " without permission "
+ android.Manifest.permission.DUMP);
return;
}
boolean dumpAll = false;
boolean dumpClient = false;
String dumpPackage = null;
int opti = 0;
while (opti < args.length) {
String opt = args[opti];
if (opt == null || opt.length() <= 0 || opt.charAt(0) != '-') {
break;
}
opti++;
if ("-a".equals(opt)) {
dumpAll = true;
} else if ("-c".equals(opt)) {
dumpClient = true;
} else if ("-h".equals(opt)) {
pw.println("Activity manager dump options:");
pw.println(" [-a] [-c] [-h] [cmd] ...");
pw.println(" cmd may be one of:");
pw.println(" a[ctivities]: activity stack state");
pw.println(" b[roadcasts] [PACKAGE_NAME] [history [-s]]: broadcast state");
pw.println(" i[ntents] [PACKAGE_NAME]: pending intent state");
pw.println(" p[rocesses] [PACKAGE_NAME]: process state");
pw.println(" o[om]: out of memory management");
pw.println(" prov[iders] [COMP_SPEC ...]: content provider state");
pw.println(" provider [COMP_SPEC]: provider client-side state");
pw.println(" s[ervices] [COMP_SPEC ...]: service state");
pw.println(" service [COMP_SPEC]: service client-side state");
pw.println(" package [PACKAGE_NAME]: all state related to given package");
pw.println(" all: dump all activities");
pw.println(" top: dump the top activity");
pw.println(" cmd may also be a COMP_SPEC to dump activities.");
pw.println(" COMP_SPEC may be a component name (com.foo/.myApp),");
pw.println(" a partial substring in a component name, a");
pw.println(" hex object identifier.");
pw.println(" -a: include all available server state.");
pw.println(" -c: include client state.");
return;
} else {
pw.println("Unknown argument: " + opt + "; use -h for help");
}
}
long origId = Binder.clearCallingIdentity();
boolean more = false;
// Is the caller requesting to dump a particular piece of data?
if (opti < args.length) {
String cmd = args[opti];
opti++;
if ("activities".equals(cmd) || "a".equals(cmd)) {
synchronized (this) {
dumpActivitiesLocked(fd, pw, args, opti, true, dumpClient, null);
}
} else if ("broadcasts".equals(cmd) || "b".equals(cmd)) {
String[] newArgs;
String name;
if (opti >= args.length) {
name = null;
newArgs = EMPTY_STRING_ARRAY;
} else {
name = args[opti];
opti++;
newArgs = new String[args.length - opti];
if (args.length > 2) System.arraycopy(args, opti, newArgs, 0,
args.length - opti);
}
synchronized (this) {
dumpBroadcastsLocked(fd, pw, args, opti, true, name);
}
} else if ("intents".equals(cmd) || "i".equals(cmd)) {
String[] newArgs;
String name;
if (opti >= args.length) {
name = null;
newArgs = EMPTY_STRING_ARRAY;
} else {
name = args[opti];
opti++;
newArgs = new String[args.length - opti];
if (args.length > 2) System.arraycopy(args, opti, newArgs, 0,
args.length - opti);
}
synchronized (this) {
dumpPendingIntentsLocked(fd, pw, args, opti, true, name);
}
} else if ("processes".equals(cmd) || "p".equals(cmd)) {
String[] newArgs;
String name;
if (opti >= args.length) {
name = null;
newArgs = EMPTY_STRING_ARRAY;
} else {
name = args[opti];
opti++;
newArgs = new String[args.length - opti];
if (args.length > 2) System.arraycopy(args, opti, newArgs, 0,
args.length - opti);
}
synchronized (this) {
dumpProcessesLocked(fd, pw, args, opti, true, name);
}
} else if ("oom".equals(cmd) || "o".equals(cmd)) {
synchronized (this) {
dumpOomLocked(fd, pw, args, opti, true);
}
} else if ("provider".equals(cmd)) {
String[] newArgs;
String name;
if (opti >= args.length) {
name = null;
newArgs = EMPTY_STRING_ARRAY;
} else {
name = args[opti];
opti++;
newArgs = new String[args.length - opti];
if (args.length > 2) System.arraycopy(args, opti, newArgs, 0, args.length - opti);
}
if (!dumpProvider(fd, pw, name, newArgs, 0, dumpAll)) {
pw.println("No providers match: " + name);
pw.println("Use -h for help.");
}
} else if ("providers".equals(cmd) || "prov".equals(cmd)) {
synchronized (this) {
dumpProvidersLocked(fd, pw, args, opti, true, null);
}
} else if ("service".equals(cmd)) {
String[] newArgs;
String name;
if (opti >= args.length) {
name = null;
newArgs = EMPTY_STRING_ARRAY;
} else {
name = args[opti];
opti++;
newArgs = new String[args.length - opti];
if (args.length > 2) System.arraycopy(args, opti, newArgs, 0,
args.length - opti);
}
if (!mServices.dumpService(fd, pw, name, newArgs, 0, dumpAll)) {
pw.println("No services match: " + name);
pw.println("Use -h for help.");
}
} else if ("package".equals(cmd)) {
String[] newArgs;
if (opti >= args.length) {
pw.println("package: no package name specified");
pw.println("Use -h for help.");
} else {
dumpPackage = args[opti];
opti++;
newArgs = new String[args.length - opti];
if (args.length > 2) System.arraycopy(args, opti, newArgs, 0,
args.length - opti);
args = newArgs;
opti = 0;
more = true;
}
} else if ("services".equals(cmd) || "s".equals(cmd)) {
synchronized (this) {
mServices.dumpServicesLocked(fd, pw, args, opti, true, dumpClient, null);
}
} else {
// Dumping a single activity?
if (!dumpActivity(fd, pw, cmd, args, opti, dumpAll)) {
pw.println("Bad activity command, or no activities match: " + cmd);
pw.println("Use -h for help.");
}
}
if (!more) {
Binder.restoreCallingIdentity(origId);
return;
}
}
// No piece of data specified, dump everything.
synchronized (this) {
dumpPendingIntentsLocked(fd, pw, args, opti, dumpAll, dumpPackage);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpBroadcastsLocked(fd, pw, args, opti, dumpAll, dumpPackage);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpProvidersLocked(fd, pw, args, opti, dumpAll, dumpPackage);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
mServices.dumpServicesLocked(fd, pw, args, opti, dumpAll, dumpClient, dumpPackage);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpActivitiesLocked(fd, pw, args, opti, dumpAll, dumpClient, dumpPackage);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpProcessesLocked(fd, pw, args, opti, dumpAll, dumpPackage);
}
Binder.restoreCallingIdentity(origId);
}
void dumpActivitiesLocked(FileDescriptor fd, PrintWriter pw, String[] args,
int opti, boolean dumpAll, boolean dumpClient, String dumpPackage) {
pw.println("ACTIVITY MANAGER ACTIVITIES (dumpsys activity activities)");
boolean printedAnything = mStackSupervisor.dumpActivitiesLocked(fd, pw, dumpAll, dumpClient,
dumpPackage);
boolean needSep = printedAnything;
boolean printed = ActivityStackSupervisor.printThisActivity(pw, mFocusedActivity,
dumpPackage, needSep, " mFocusedActivity: ");
if (printed) {
printedAnything = true;
needSep = false;
}
if (dumpPackage == null) {
if (needSep) {
pw.println();
}
needSep = true;
printedAnything = true;
mStackSupervisor.dump(pw, " ");
}
if (mRecentTasks.size() > 0) {
boolean printedHeader = false;
final int N = mRecentTasks.size();
for (int i=0; i procs = mProcessNames.getMap().valueAt(ip);
final int NA = procs.size();
for (int ia=0; ia 0) {
boolean printed = false;
for (int i=0; i 0) {
if (needSep) {
pw.println();
}
pw.print(" Process LRU list (sorted by oom_adj, "); pw.print(mLruProcesses.size());
pw.print(" total, non-act at ");
pw.print(mLruProcesses.size()-mLruProcessActivityStart);
pw.print(", non-svc at ");
pw.print(mLruProcesses.size()-mLruProcessServiceStart);
pw.println("):");
dumpProcessOomList(pw, this, mLruProcesses, " ", "Proc", "PERS", false, dumpPackage);
needSep = true;
printedAnything = true;
}
if (dumpAll || dumpPackage != null) {
synchronized (mPidsSelfLocked) {
boolean printed = false;
for (int i=0; i 0) {
synchronized (mPidsSelfLocked) {
boolean printed = false;
for (int i=0; i 0) {
if (needSep) pw.println();
needSep = true;
printedAnything = true;
pw.println(" Persisent processes that are starting:");
dumpProcessList(pw, this, mPersistentStartingProcesses, " ",
"Starting Norm", "Restarting PERS", dumpPackage);
}
if (mRemovedProcesses.size() > 0) {
if (needSep) pw.println();
needSep = true;
printedAnything = true;
pw.println(" Processes that are being removed:");
dumpProcessList(pw, this, mRemovedProcesses, " ",
"Removed Norm", "Removed PERS", dumpPackage);
}
if (mProcessesOnHold.size() > 0) {
if (needSep) pw.println();
needSep = true;
printedAnything = true;
pw.println(" Processes that are on old until the system is ready:");
dumpProcessList(pw, this, mProcessesOnHold, " ",
"OnHold Norm", "OnHold PERS", dumpPackage);
}
needSep = dumpProcessesToGc(fd, pw, args, opti, needSep, dumpAll, dumpPackage);
if (mProcessCrashTimes.getMap().size() > 0) {
boolean printed = false;
long now = SystemClock.uptimeMillis();
final ArrayMap> pmap = mProcessCrashTimes.getMap();
final int NP = pmap.size();
for (int ip=0; ip uids = pmap.valueAt(ip);
final int N = uids.size();
for (int i=0; i 0) {
boolean printed = false;
final ArrayMap> pmap = mBadProcesses.getMap();
final int NP = pmap.size();
for (int ip=0; ip uids = pmap.valueAt(ip);
final int N = uids.size();
for (int i=0; i 0) pw.print(", ");
pw.print(mStartedUserArray[i]);
}
pw.println("]");
pw.print(" mUserLru: [");
for (int i=0; i 0) pw.print(", ");
pw.print(mUserLru.get(i));
}
pw.println("]");
if (dumpAll) {
pw.print(" mStartedUserArray: "); pw.println(Arrays.toString(mStartedUserArray));
}
}
if (mHomeProcess != null && (dumpPackage == null
|| mHomeProcess.pkgList.containsKey(dumpPackage))) {
if (needSep) {
pw.println();
needSep = false;
}
pw.println(" mHomeProcess: " + mHomeProcess);
}
if (mPreviousProcess != null && (dumpPackage == null
|| mPreviousProcess.pkgList.containsKey(dumpPackage))) {
if (needSep) {
pw.println();
needSep = false;
}
pw.println(" mPreviousProcess: " + mPreviousProcess);
}
if (dumpAll) {
StringBuilder sb = new StringBuilder(128);
sb.append(" mPreviousProcessVisibleTime: ");
TimeUtils.formatDuration(mPreviousProcessVisibleTime, sb);
pw.println(sb);
}
if (mHeavyWeightProcess != null && (dumpPackage == null
|| mHeavyWeightProcess.pkgList.containsKey(dumpPackage))) {
if (needSep) {
pw.println();
needSep = false;
}
pw.println(" mHeavyWeightProcess: " + mHeavyWeightProcess);
}
if (dumpPackage == null) {
pw.println(" mConfiguration: " + mConfiguration);
}
if (dumpAll) {
pw.println(" mConfigWillChange: " + getFocusedStack().mConfigWillChange);
if (mCompatModePackages.getPackages().size() > 0) {
boolean printed = false;
for (Map.Entry entry
: mCompatModePackages.getPackages().entrySet()) {
String pkg = entry.getKey();
int mode = entry.getValue();
if (dumpPackage != null && !dumpPackage.equals(pkg)) {
continue;
}
if (!printed) {
pw.println(" mScreenCompatPackages:");
printed = true;
}
pw.print(" "); pw.print(pkg); pw.print(": ");
pw.print(mode); pw.println();
}
}
}
if (dumpPackage == null) {
if (mSleeping || mWentToSleep || mLockScreenShown) {
pw.println(" mSleeping=" + mSleeping + " mWentToSleep=" + mWentToSleep
+ " mLockScreenShown " + mLockScreenShown);
}
if (mShuttingDown) {
pw.println(" mShuttingDown=" + mShuttingDown);
}
}
if (mDebugApp != null || mOrigDebugApp != null || mDebugTransient
|| mOrigWaitForDebugger) {
if (dumpPackage == null || dumpPackage.equals(mDebugApp)
|| dumpPackage.equals(mOrigDebugApp)) {
if (needSep) {
pw.println();
needSep = false;
}
pw.println(" mDebugApp=" + mDebugApp + "/orig=" + mOrigDebugApp
+ " mDebugTransient=" + mDebugTransient
+ " mOrigWaitForDebugger=" + mOrigWaitForDebugger);
}
}
if (mOpenGlTraceApp != null) {
if (dumpPackage == null || dumpPackage.equals(mOpenGlTraceApp)) {
if (needSep) {
pw.println();
needSep = false;
}
pw.println(" mOpenGlTraceApp=" + mOpenGlTraceApp);
}
}
if (mProfileApp != null || mProfileProc != null || mProfileFile != null
|| mProfileFd != null) {
if (dumpPackage == null || dumpPackage.equals(mProfileApp)) {
if (needSep) {
pw.println();
needSep = false;
}
pw.println(" mProfileApp=" + mProfileApp + " mProfileProc=" + mProfileProc);
pw.println(" mProfileFile=" + mProfileFile + " mProfileFd=" + mProfileFd);
pw.println(" mProfileType=" + mProfileType + " mAutoStopProfiler="
+ mAutoStopProfiler);
}
}
if (dumpPackage == null) {
if (mAlwaysFinishActivities || mController != null) {
pw.println(" mAlwaysFinishActivities=" + mAlwaysFinishActivities
+ " mController=" + mController);
}
if (dumpAll) {
pw.println(" Total persistent processes: " + numPers);
pw.println(" mStartRunning=" + mStartRunning
+ " mProcessesReady=" + mProcessesReady
+ " mSystemReady=" + mSystemReady);
pw.println(" mBooting=" + mBooting
+ " mBooted=" + mBooted
+ " mFactoryTest=" + mFactoryTest);
pw.print(" mLastPowerCheckRealtime=");
TimeUtils.formatDuration(mLastPowerCheckRealtime, pw);
pw.println("");
pw.print(" mLastPowerCheckUptime=");
TimeUtils.formatDuration(mLastPowerCheckUptime, pw);
pw.println("");
pw.println(" mGoingToSleep=" + mStackSupervisor.mGoingToSleep);
pw.println(" mLaunchingActivity=" + mStackSupervisor.mLaunchingActivity);
pw.println(" mAdjSeq=" + mAdjSeq + " mLruSeq=" + mLruSeq);
pw.println(" mNumNonCachedProcs=" + mNumNonCachedProcs
+ " (" + mLruProcesses.size() + " total)"
+ " mNumCachedHiddenProcs=" + mNumCachedHiddenProcs
+ " mNumServiceProcs=" + mNumServiceProcs
+ " mNewNumServiceProcs=" + mNewNumServiceProcs);
pw.println(" mAllowLowerMemLevel=" + mAllowLowerMemLevel
+ " mLastMemoryLevel" + mLastMemoryLevel
+ " mLastNumProcesses" + mLastNumProcesses);
long now = SystemClock.uptimeMillis();
pw.print(" mLastIdleTime=");
TimeUtils.formatDuration(now, mLastIdleTime, pw);
pw.print(" mLowRamSinceLastIdle=");
TimeUtils.formatDuration(getLowRamTimeSinceIdle(now), pw);
pw.println();
}
}
if (!printedAnything) {
pw.println(" (nothing)");
}
}
boolean dumpProcessesToGc(FileDescriptor fd, PrintWriter pw, String[] args,
int opti, boolean needSep, boolean dumpAll, String dumpPackage) {
if (mProcessesToGc.size() > 0) {
boolean printed = false;
long now = SystemClock.uptimeMillis();
for (int i=0; i= 0) {
pw.print(' ');
if (adj < 10) pw.print(' ');
} else {
if (adj > -10) pw.print(' ');
}
pw.print(adj);
pw.print(": ");
pw.print(name);
pw.print(" (");
pw.print(mProcessList.getMemLevel(adj)/1024);
pw.println(" kB)");
}
boolean dumpOomLocked(FileDescriptor fd, PrintWriter pw, String[] args,
int opti, boolean dumpAll) {
boolean needSep = false;
if (mLruProcesses.size() > 0) {
if (needSep) pw.println();
needSep = true;
pw.println(" OOM levels:");
printOomLevel(pw, "SYSTEM_ADJ", ProcessList.SYSTEM_ADJ);
printOomLevel(pw, "PERSISTENT_PROC_ADJ", ProcessList.PERSISTENT_PROC_ADJ);
printOomLevel(pw, "FOREGROUND_APP_ADJ", ProcessList.FOREGROUND_APP_ADJ);
printOomLevel(pw, "VISIBLE_APP_ADJ", ProcessList.VISIBLE_APP_ADJ);
printOomLevel(pw, "PERCEPTIBLE_APP_ADJ", ProcessList.PERCEPTIBLE_APP_ADJ);
printOomLevel(pw, "BACKUP_APP_ADJ", ProcessList.BACKUP_APP_ADJ);
printOomLevel(pw, "HEAVY_WEIGHT_APP_ADJ", ProcessList.HEAVY_WEIGHT_APP_ADJ);
printOomLevel(pw, "SERVICE_ADJ", ProcessList.SERVICE_ADJ);
printOomLevel(pw, "HOME_APP_ADJ", ProcessList.HOME_APP_ADJ);
printOomLevel(pw, "PREVIOUS_APP_ADJ", ProcessList.PREVIOUS_APP_ADJ);
printOomLevel(pw, "SERVICE_B_ADJ", ProcessList.SERVICE_B_ADJ);
printOomLevel(pw, "CACHED_APP_MIN_ADJ", ProcessList.CACHED_APP_MIN_ADJ);
printOomLevel(pw, "CACHED_APP_MAX_ADJ", ProcessList.CACHED_APP_MAX_ADJ);
if (needSep) pw.println();
pw.print(" Process OOM control ("); pw.print(mLruProcesses.size());
pw.print(" total, non-act at ");
pw.print(mLruProcesses.size()-mLruProcessActivityStart);
pw.print(", non-svc at ");
pw.print(mLruProcesses.size()-mLruProcessServiceStart);
pw.println("):");
dumpProcessOomList(pw, this, mLruProcesses, " ", "Proc", "PERS", true, null);
needSep = true;
}
dumpProcessesToGc(fd, pw, args, opti, needSep, dumpAll, null);
pw.println();
pw.println(" mHomeProcess: " + mHomeProcess);
pw.println(" mPreviousProcess: " + mPreviousProcess);
if (mHeavyWeightProcess != null) {
pw.println(" mHeavyWeightProcess: " + mHeavyWeightProcess);
}
return true;
}
/**
* There are three ways to call this:
* - no provider specified: dump all the providers
* - a flattened component name that matched an existing provider was specified as the
* first arg: dump that one provider
* - the first arg isn't the flattened component name of an existing provider:
* dump all providers whose component contains the first arg as a substring
*/
protected boolean dumpProvider(FileDescriptor fd, PrintWriter pw, String name, String[] args,
int opti, boolean dumpAll) {
return mProviderMap.dumpProvider(fd, pw, name, args, opti, dumpAll);
}
static class ItemMatcher {
ArrayList components;
ArrayList strings;
ArrayList objects;
boolean all;
ItemMatcher() {
all = true;
}
void build(String name) {
ComponentName componentName = ComponentName.unflattenFromString(name);
if (componentName != null) {
if (components == null) {
components = new ArrayList();
}
components.add(componentName);
all = false;
} else {
int objectId = 0;
// Not a '/' separated full component name; maybe an object ID?
try {
objectId = Integer.parseInt(name, 16);
if (objects == null) {
objects = new ArrayList();
}
objects.add(objectId);
all = false;
} catch (RuntimeException e) {
// Not an integer; just do string match.
if (strings == null) {
strings = new ArrayList();
}
strings.add(name);
all = false;
}
}
}
int build(String[] args, int opti) {
for (; opti activities;
synchronized (this) {
activities = mStackSupervisor.getDumpActivitiesLocked(name);
}
if (activities.size() <= 0) {
return false;
}
String[] newArgs = new String[args.length - opti];
System.arraycopy(args, opti, newArgs, 0, args.length - opti);
TaskRecord lastTask = null;
boolean needSep = false;
for (int i=activities.size()-1; i>=0; i--) {
ActivityRecord r = activities.get(i);
if (needSep) {
pw.println();
}
needSep = true;
synchronized (this) {
if (lastTask != r.task) {
lastTask = r.task;
pw.print("TASK "); pw.print(lastTask.affinity);
pw.print(" id="); pw.println(lastTask.taskId);
if (dumpAll) {
lastTask.dump(pw, " ");
}
}
}
dumpActivity(" ", fd, pw, activities.get(i), newArgs, dumpAll);
}
return true;
}
/**
* Invokes IApplicationThread.dumpActivity() on the thread of the specified activity if
* there is a thread associated with the activity.
*/
private void dumpActivity(String prefix, FileDescriptor fd, PrintWriter pw,
final ActivityRecord r, String[] args, boolean dumpAll) {
String innerPrefix = prefix + " ";
synchronized (this) {
pw.print(prefix); pw.print("ACTIVITY "); pw.print(r.shortComponentName);
pw.print(" "); pw.print(Integer.toHexString(System.identityHashCode(r)));
pw.print(" pid=");
if (r.app != null) pw.println(r.app.pid);
else pw.println("(not running)");
if (dumpAll) {
r.dump(pw, innerPrefix);
}
}
if (r.app != null && r.app.thread != null) {
// flush anything that is already in the PrintWriter since the thread is going
// to write to the file descriptor directly
pw.flush();
try {
TransferPipe tp = new TransferPipe();
try {
r.app.thread.dumpActivity(tp.getWriteFd().getFileDescriptor(),
r.appToken, innerPrefix, args);
tp.go(fd);
} finally {
tp.kill();
}
} catch (IOException e) {
pw.println(innerPrefix + "Failure while dumping the activity: " + e);
} catch (RemoteException e) {
pw.println(innerPrefix + "Got a RemoteException while dumping the activity");
}
}
}
void dumpBroadcastsLocked(FileDescriptor fd, PrintWriter pw, String[] args,
int opti, boolean dumpAll, String dumpPackage) {
boolean needSep = false;
boolean onlyHistory = false;
boolean printedAnything = false;
if ("history".equals(dumpPackage)) {
if (opti < args.length && "-s".equals(args[opti])) {
dumpAll = false;
}
onlyHistory = true;
dumpPackage = null;
}
pw.println("ACTIVITY MANAGER BROADCAST STATE (dumpsys activity broadcasts)");
if (!onlyHistory && dumpAll) {
if (mRegisteredReceivers.size() > 0) {
boolean printed = false;
Iterator it = mRegisteredReceivers.values().iterator();
while (it.hasNext()) {
ReceiverList r = (ReceiverList)it.next();
if (dumpPackage != null && (r.app == null ||
!dumpPackage.equals(r.app.info.packageName))) {
continue;
}
if (!printed) {
pw.println(" Registered Receivers:");
needSep = true;
printed = true;
printedAnything = true;
}
pw.print(" * "); pw.println(r);
r.dump(pw, " ");
}
}
if (mReceiverResolver.dump(pw, needSep ?
"\n Receiver Resolver Table:" : " Receiver Resolver Table:",
" ", dumpPackage, false)) {
needSep = true;
printedAnything = true;
}
}
for (BroadcastQueue q : mBroadcastQueues) {
needSep = q.dumpLocked(fd, pw, args, opti, dumpAll, dumpPackage, needSep);
printedAnything |= needSep;
}
needSep = true;
if (!onlyHistory && mStickyBroadcasts != null && dumpPackage == null) {
for (int user=0; user> ent
: mStickyBroadcasts.valueAt(user).entrySet()) {
pw.print(" * Sticky action "); pw.print(ent.getKey());
if (dumpAll) {
pw.println(":");
ArrayList intents = ent.getValue();
final int N = intents.size();
for (int i=0; i 0) {
boolean printed = false;
for (int i=mLaunchingProviders.size()-1; i>=0; i--) {
ContentProviderRecord r = mLaunchingProviders.get(i);
if (dumpPackage != null && !dumpPackage.equals(r.name.getPackageName())) {
continue;
}
if (!printed) {
if (needSep) pw.println();
needSep = true;
pw.println(" Launching content providers:");
printed = true;
printedAnything = true;
}
pw.print(" Launching #"); pw.print(i); pw.print(": ");
pw.println(r);
}
}
if (mGrantedUriPermissions.size() > 0) {
boolean printed = false;
int dumpUid = -2;
if (dumpPackage != null) {
try {
dumpUid = mContext.getPackageManager().getPackageUid(dumpPackage, 0);
} catch (NameNotFoundException e) {
dumpUid = -1;
}
}
for (int i=0; i= -1 && UserHandle.getAppId(uid) != dumpUid) {
continue;
}
ArrayMap perms
= mGrantedUriPermissions.valueAt(i);
if (!printed) {
if (needSep) pw.println();
needSep = true;
pw.println(" Granted Uri Permissions:");
printed = true;
printedAnything = true;
}
pw.print(" * UID "); pw.print(uid);
pw.println(" holds:");
for (UriPermission perm : perms.values()) {
pw.print(" "); pw.println(perm);
if (dumpAll) {
perm.dump(pw, " ");
}
}
}
}
if (!printedAnything) {
pw.println(" (nothing)");
}
}
void dumpPendingIntentsLocked(FileDescriptor fd, PrintWriter pw, String[] args,
int opti, boolean dumpAll, String dumpPackage) {
boolean printed = false;
pw.println("ACTIVITY MANAGER PENDING INTENTS (dumpsys activity intents)");
if (mIntentSenderRecords.size() > 0) {
Iterator> it
= mIntentSenderRecords.values().iterator();
while (it.hasNext()) {
WeakReference ref = it.next();
PendingIntentRecord rec = ref != null ? ref.get(): null;
if (dumpPackage != null && (rec == null
|| !dumpPackage.equals(rec.key.packageName))) {
continue;
}
printed = true;
if (rec != null) {
pw.print(" * "); pw.println(rec);
if (dumpAll) {
rec.dump(pw, " ");
}
} else {
pw.print(" * "); pw.println(ref);
}
}
}
if (!printed) {
pw.println(" (nothing)");
}
}
private static final int dumpProcessList(PrintWriter pw,
ActivityManagerService service, List list,
String prefix, String normalLabel, String persistentLabel,
String dumpPackage) {
int numPers = 0;
final int N = list.size()-1;
for (int i=N; i>=0; i--) {
ProcessRecord r = (ProcessRecord)list.get(i);
if (dumpPackage != null && !dumpPackage.equals(r.info.packageName)) {
continue;
}
pw.println(String.format("%s%s #%2d: %s",
prefix, (r.persistent ? persistentLabel : normalLabel),
i, r.toString()));
if (r.persistent) {
numPers++;
}
}
return numPers;
}
private static final boolean dumpProcessOomList(PrintWriter pw,
ActivityManagerService service, List origList,
String prefix, String normalLabel, String persistentLabel,
boolean inclDetails, String dumpPackage) {
ArrayList> list
= new ArrayList>(origList.size());
for (int i=0; i(origList.get(i), i));
}
if (list.size() <= 0) {
return false;
}
Comparator> comparator
= new Comparator>() {
@Override
public int compare(Pair