/*
* Copyright (C) 2006 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 com.android.internal.app.ProcessStats;
import com.android.internal.os.BatteryStatsImpl;
import com.android.server.LocalServices;
import com.android.server.notification.NotificationManagerInternal;
import android.app.INotificationManager;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.pm.ServiceInfo;
import android.net.Uri;
import android.os.Binder;
import android.os.IBinder;
import android.os.RemoteException;
import android.os.SystemClock;
import android.os.UserHandle;
import android.provider.Settings;
import android.util.ArrayMap;
import android.util.Slog;
import android.util.TimeUtils;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import static com.android.server.am.ActivityManagerDebugConfig.TAG_AM;
import static com.android.server.am.ActivityManagerDebugConfig.TAG_WITH_CLASS_NAME;
/**
* A running application service.
*/
final class ServiceRecord extends Binder {
private static final String TAG = TAG_WITH_CLASS_NAME ? "ServiceRecord" : TAG_AM;
// Maximum number of delivery attempts before giving up.
static final int MAX_DELIVERY_COUNT = 3;
// Maximum number of times it can fail during execution before giving up.
static final int MAX_DONE_EXECUTING_COUNT = 6;
final ActivityManagerService ams;
final BatteryStatsImpl.Uid.Pkg.Serv stats;
final ComponentName name; // service component.
final String shortName; // name.flattenToShortString().
final Intent.FilterComparison intent;
// original intent used to find service.
final ServiceInfo serviceInfo;
// all information about the service.
final ApplicationInfo appInfo;
// information about service's app.
final int userId; // user that this service is running as
final String packageName; // the package implementing intent's component
final String processName; // process where this component wants to run
final String permission;// permission needed to access service
final boolean exported; // from ServiceInfo.exported
final Runnable restarter; // used to schedule retries of starting the service
final long createTime; // when this service was created
final ArrayMap<Intent.FilterComparison, IntentBindRecord> bindings
= new ArrayMap<Intent.FilterComparison, IntentBindRecord>();
// All active bindings to the service.
final ArrayMap<IBinder, ArrayList<ConnectionRecord>> connections
= new ArrayMap<IBinder, ArrayList<ConnectionRecord>>();
// IBinder -> ConnectionRecord of all bound clients
ProcessRecord app; // where this service is running or null.
ProcessRecord isolatedProc; // keep track of isolated process, if requested
ProcessStats.ServiceState tracker; // tracking service execution, may be null
ProcessStats.ServiceState restartTracker; // tracking service restart
boolean delayed; // are we waiting to start this service in the background?
boolean isForeground; // is service currently in foreground mode?
int foregroundId; // Notification ID of last foreground req.
Notification foregroundNoti; // Notification record of foreground state.
long lastActivity; // last time there was some activity on the service.
long startingBgTimeout; // time at which we scheduled this for a delayed start.
boolean startRequested; // someone explicitly called start?
boolean delayedStop; // service has been stopped but is in a delayed start?
boolean stopIfKilled; // last onStart() said to stop if service killed?
boolean callStart; // last onStart() has asked to alway be called on restart.
int executeNesting; // number of outstanding operations keeping foreground.
boolean executeFg; // should we be executing in the foreground?
long executingStart; // start time of last execute request.
boolean createdFromFg; // was this service last created due to a foreground process call?
int crashCount; // number of times proc has crashed with service running
int totalRestartCount; // number of times we have had to restart.
int restartCount; // number of restarts performed in a row.
long restartDelay; // delay until next restart attempt.
long restartTime; // time of last restart.
long nextRestartTime; // time when restartDelay will expire.
boolean destroying; // set when we have started destroying the service
long destroyTime; // time at which destory was initiated.
String stringName; // caching of toString
private int lastStartId; // identifier of most recent start request.
static class StartItem {
final ServiceRecord sr;
final boolean taskRemoved;
final int id;
final Intent intent;
final ActivityManagerService.NeededUriGrants neededGrants;
long deliveredTime;
int deliveryCount;
int doneExecutingCount;
UriPermissionOwner uriPermissions;
String stringName; // caching of toString
StartItem(ServiceRecord _sr, boolean _taskRemoved, int _id, Intent _intent,
ActivityManagerService.NeededUriGrants _neededGrants) {
sr = _sr;
taskRemoved = _taskRemoved;
id = _id;
intent = _intent;
neededGrants = _neededGrants;
}
UriPermissionOwner getUriPermissionsLocked() {
if (uriPermissions == null) {
uriPermissions = new UriPermissionOwner(sr.ams, this);
}
return uriPermissions;
}
void removeUriPermissionsLocked() {
if (uriPermissions != null) {
uriPermissions.removeUriPermissionsLocked();
uriPermissions = null;
}
}
public String toString() {
if (stringName != null) {
return stringName;
}
StringBuilder sb = new StringBuilder(128);
sb.append("ServiceRecord{")
.append(Integer.toHexString(System.identityHashCode(sr)))
.append(' ').append(sr.shortName)
.append(" StartItem ")
.append(Integer.toHexString(System.identityHashCode(this)))
.append(" id=").append(id).append('}');
return stringName = sb.toString();
}
}
final ArrayList<StartItem> deliveredStarts = new ArrayList<StartItem>();
// start() arguments which been delivered.
final ArrayList<StartItem> pendingStarts = new ArrayList<StartItem>();
// start() arguments that haven't yet been delivered.
void dumpStartList(PrintWriter pw, String prefix, List<StartItem> list, long now) {
final int N = list.size();
for (int i=0; i<N; i++) {
StartItem si = list.get(i);
pw.print(prefix); pw.print("#"); pw.print(i);
pw.print(" id="); pw.print(si.id);
if (now != 0) {
pw.print(" dur=");
TimeUtils.formatDuration(si.deliveredTime, now, pw);
}
if (si.deliveryCount != 0) {
pw.print(" dc="); pw.print(si.deliveryCount);
}
if (si.doneExecutingCount != 0) {
pw.print(" dxc="); pw.print(si.doneExecutingCount);
}
pw.println("");
pw.print(prefix); pw.print(" intent=");
if (si.intent != null) pw.println(si.intent.toString());
else pw.println("null");
if (si.neededGrants != null) {
pw.print(prefix); pw.print(" neededGrants=");
pw.println(si.neededGrants);
}
if (si.uriPermissions != null) {
si.uriPermissions.dump(pw, prefix);
}
}
}
void dump(PrintWriter pw, String prefix) {
pw.print(prefix); pw.print("intent={");
pw.print(intent.getIntent().toShortString(false, true, false, true));
pw.println('}');
pw.print(prefix); pw.print("packageName="); pw.println(packageName);
pw.print(prefix); pw.print("processName="); pw.println(processName);
if (permission != null) {
pw.print(prefix); pw.print("permission="); pw.println(permission);
}
long now = SystemClock.uptimeMillis();
long nowReal = SystemClock.elapsedRealtime();
if (appInfo != null) {
pw.print(prefix); pw.print("baseDir="); pw.println(appInfo.sourceDir);
if (!Objects.equals(appInfo.sourceDir, appInfo.publicSourceDir)) {
pw.print(prefix); pw.print("resDir="); pw.println(appInfo.publicSourceDir);
}
pw.print(prefix); pw.print("dataDir="); pw.println(appInfo.dataDir);
}
pw.print(prefix); pw.print("app="); pw.println(app);
if (isolatedProc != null) {
pw.print(prefix); pw.print("isolatedProc="); pw.println(isolatedProc);
}
if (delayed) {
pw.print(prefix); pw.print("delayed="); pw.println(delayed);
}
if (isForeground || foregroundId != 0) {
pw.print(prefix); pw.print("isForeground="); pw.print(isForeground);
pw.print(" foregroundId="); pw.print(foregroundId);
pw.print(" foregroundNoti="); pw.println(foregroundNoti);
}
pw.print(prefix); pw.print("createTime=");
TimeUtils.formatDuration(createTime, nowReal, pw);
pw.print(" startingBgTimeout=");
TimeUtils.formatDuration(startingBgTimeout, now, pw);
pw.println();
pw.print(prefix); pw.print("lastActivity=");
TimeUtils.formatDuration(lastActivity, now, pw);
pw.print(" restartTime=");
TimeUtils.formatDuration(restartTime, now, pw);
pw.print(" createdFromFg="); pw.println(createdFromFg);
if (startRequested || delayedStop || lastStartId != 0) {
pw.print(prefix); pw.print("startRequested="); pw.print(startRequested);
pw.print(" delayedStop="); pw.print(delayedStop);
pw.print(" stopIfKilled="); pw.print(stopIfKilled);
pw.print(" callStart="); pw.print(callStart);
pw.print(" lastStartId="); pw.println(lastStartId);
}
if (executeNesting != 0) {
pw.print(prefix); pw.print("executeNesting="); pw.print(executeNesting);
pw.print(" executeFg="); pw.print(executeFg);
pw.print(" executingStart=");
TimeUtils.formatDuration(executingStart, now, pw);
pw.println();
}
if (destroying || destroyTime != 0) {
pw.print(prefix); pw.print("destroying="); pw.print(destroying);
pw.print(" destroyTime=");
TimeUtils.formatDuration(destroyTime, now, pw);
pw.println();
}
if (crashCount != 0 || restartCount != 0
|| restartDelay != 0 || nextRestartTime != 0) {
pw.print(prefix); pw.print("restartCount="); pw.print(restartCount);
pw.print(" restartDelay=");
TimeUtils.formatDuration(restartDelay, now, pw);
pw.print(" nextRestartTime=");
TimeUtils.formatDuration(nextRestartTime, now, pw);
pw.print(" crashCount="); pw.println(crashCount);
}
if (deliveredStarts.size() > 0) {
pw.print(prefix); pw.println("Delivered Starts:");
dumpStartList(pw, prefix, deliveredStarts, now);
}
if (pendingStarts.size() > 0) {
pw.print(prefix); pw.println("Pending Starts:");
dumpStartList(pw, prefix, pendingStarts, 0);
}
if (bindings.size() > 0) {
pw.print(prefix); pw.println("Bindings:");
for (int i=0; i<bindings.size(); i++) {
IntentBindRecord b = bindings.valueAt(i);
pw.print(prefix); pw.print("* IntentBindRecord{");
pw.print(Integer.toHexString(System.identityHashCode(b)));
if ((b.collectFlags()&Context.BIND_AUTO_CREATE) != 0) {
pw.append(" CREATE");
}
pw.println("}:");
b.dumpInService(pw, prefix + " ");
}
}
if (connections.size() > 0) {
pw.print(prefix); pw.println("All Connections:");
for (int conni=0; conni<connections.size(); conni++) {
ArrayList<ConnectionRecord> c = connections.valueAt(conni);
for (int i=0; i<c.size(); i++) {
pw.print(prefix); pw.print(" "); pw.println(c.get(i));
}
}
}
}
ServiceRecord(ActivityManagerService ams,
BatteryStatsImpl.Uid.Pkg.Serv servStats, ComponentName name,
Intent.FilterComparison intent, ServiceInfo sInfo, boolean callerIsFg,
Runnable restarter) {
this.ams = ams;
this.stats = servStats;
this.name = name;
shortName = name.flattenToShortString();
this.intent = intent;
serviceInfo = sInfo;
appInfo = sInfo.applicationInfo;
packageName = sInfo.applicationInfo.packageName;
processName = sInfo.processName;
permission = sInfo.permission;
exported = sInfo.exported;
this.restarter = restarter;
createTime = SystemClock.elapsedRealtime();
lastActivity = SystemClock.uptimeMillis();
userId = UserHandle.getUserId(appInfo.uid);
createdFromFg = callerIsFg;
}
public ProcessStats.ServiceState getTracker() {
if (tracker != null) {
return tracker;
}
if ((serviceInfo.applicationInfo.flags&ApplicationInfo.FLAG_PERSISTENT) == 0) {
tracker = ams.mProcessStats.getServiceStateLocked(serviceInfo.packageName,
serviceInfo.applicationInfo.uid, serviceInfo.applicationInfo.versionCode,
serviceInfo.processName, serviceInfo.name);
tracker.applyNewOwner(this);
}
return tracker;
}
public void forceClearTracker() {
if (tracker != null) {
tracker.clearCurrentOwner(this, true);
tracker = null;
}
}
public void makeRestarting(int memFactor, long now) {
if (restartTracker == null) {
if ((serviceInfo.applicationInfo.flags&ApplicationInfo.FLAG_PERSISTENT) == 0) {
restartTracker = ams.mProcessStats.getServiceStateLocked(serviceInfo.packageName,
serviceInfo.applicationInfo.uid, serviceInfo.applicationInfo.versionCode,
serviceInfo.processName, serviceInfo.name);
}
if (restartTracker == null) {
return;
}
}
restartTracker.setRestarting(true, memFactor, now);
}
public AppBindRecord retrieveAppBindingLocked(Intent intent,
ProcessRecord app) {
Intent.FilterComparison filter = new Intent.FilterComparison(intent);
IntentBindRecord i = bindings.get(filter);
if (i == null) {
i = new IntentBindRecord(this, filter);
bindings.put(filter, i);
}
AppBindRecord a = i.apps.get(app);
if (a != null) {
return a;
}
a = new AppBindRecord(this, i, app);
i.apps.put(app, a);
return a;
}
public boolean hasAutoCreateConnections() {
// XXX should probably keep a count of the number of auto-create
// connections directly in the service.
for (int conni=connections.size()-1; conni>=0; conni--) {
ArrayList<ConnectionRecord> cr = connections.valueAt(conni);
for (int i=0; i<cr.size(); i++) {
if ((cr.get(i).flags&Context.BIND_AUTO_CREATE) != 0) {
return true;
}
}
}
return false;
}
public void resetRestartCounter() {
restartCount = 0;
restartDelay = 0;
restartTime = 0;
}
public StartItem findDeliveredStart(int id, boolean remove) {
final int N = deliveredStarts.size();
for (int i=0; i<N; i++) {
StartItem si = deliveredStarts.get(i);
if (si.id == id) {
if (remove) deliveredStarts.remove(i);
return si;
}
}
return null;
}
public int getLastStartId() {
return lastStartId;
}
public int makeNextStartId() {
lastStartId++;
if (lastStartId < 1) {
lastStartId = 1;
}
return lastStartId;
}
public void postNotification() {
final int appUid = appInfo.uid;
final int appPid = app.pid;
if (foregroundId != 0 && foregroundNoti != null) {
// Do asynchronous communication with notification manager to
// avoid deadlocks.
final String localPackageName = packageName;
final int localForegroundId = foregroundId;
final Notification _foregroundNoti = foregroundNoti;
ams.mHandler.post(new Runnable() {
public void run() {
NotificationManagerInternal nm = LocalServices.getService(
NotificationManagerInternal.class);
if (nm == null) {
return;
}
Notification localForegroundNoti = _foregroundNoti;
try {
if (localForegroundNoti.getSmallIcon() == null) {
// It is not correct for the caller to supply a notification
// icon, but this used to be able to slip through, so for
// those dirty apps we will create a notification clearly
// blaming the app.
Slog.v(TAG, "Attempted to start a foreground service ("
+ name
+ ") with a broken notification (no icon: "
+ localForegroundNoti
+ ")");
CharSequence appName = appInfo.loadLabel(
ams.mContext.getPackageManager());
if (appName == null) {
appName = appInfo.packageName;
}
Context ctx = null;
try {
ctx = ams.mContext.createPackageContext(
appInfo.packageName, 0);
Notification.Builder notiBuilder = new Notification.Builder(ctx);
// it's ugly, but it clearly identifies the app
notiBuilder.setSmallIcon(appInfo.icon);
// mark as foreground
notiBuilder.setFlag(Notification.FLAG_FOREGROUND_SERVICE, true);
// we are doing the app a kindness here
notiBuilder.setPriority(Notification.PRIORITY_MIN);
Intent runningIntent = new Intent(
Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
runningIntent.setData(Uri.fromParts("package",
appInfo.packageName, null));
PendingIntent pi = PendingIntent.getActivity(ams.mContext, 0,
runningIntent, PendingIntent.FLAG_UPDATE_CURRENT);
notiBuilder.setColor(ams.mContext.getColor(
com.android.internal
.R.color.system_notification_accent_color));
notiBuilder.setContentTitle(
ams.mContext.getString(
com.android.internal.R.string
.app_running_notification_title,
appName));
notiBuilder.setContentText(
ams.mContext.getString(
com.android.internal.R.string
.app_running_notification_text,
appName));
notiBuilder.setContentIntent(pi);
localForegroundNoti = notiBuilder.build();
} catch (PackageManager.NameNotFoundException e) {
}
}
if (localForegroundNoti.getSmallIcon() == null) {
// Notifications whose icon is 0 are defined to not show
// a notification, silently ignoring it. We don't want to
// just ignore it, we want to prevent the service from
// being foreground.
throw new RuntimeException("invalid service notification: "
+ foregroundNoti);
}
int[] outId = new int[1];
nm.enqueueNotification(localPackageName, localPackageName,
appUid, appPid, null, localForegroundId, localForegroundNoti,
outId, userId);
foregroundNoti = localForegroundNoti; // save it for amending next time
} catch (RuntimeException e) {
Slog.w(TAG, "Error showing notification for service", e);
// If it gave us a garbage notification, it doesn't
// get to be foreground.
ams.setServiceForeground(name, ServiceRecord.this,
0, null, true);
ams.crashApplication(appUid, appPid, localPackageName,
"Bad notification for startForeground: " + e);
}
}
});
}
}
public void cancelNotification() {
if (foregroundId != 0) {
// Do asynchronous communication with notification manager to
// avoid deadlocks.
final String localPackageName = packageName;
final int localForegroundId = foregroundId;
ams.mHandler.post(new Runnable() {
public void run() {
INotificationManager inm = NotificationManager.getService();
if (inm == null) {
return;
}
try {
inm.cancelNotificationWithTag(localPackageName, null,
localForegroundId, userId);
} catch (RuntimeException e) {
Slog.w(TAG, "Error canceling notification for service", e);
} catch (RemoteException e) {
}
}
});
}
}
public void stripForegroundServiceFlagFromNotification() {
if (foregroundId == 0) {
return;
}
final int localForegroundId = foregroundId;
final int localUserId = userId;
final String localPackageName = packageName;
// Do asynchronous communication with notification manager to
// avoid deadlocks.
ams.mHandler.post(new Runnable() {
@Override
public void run() {
NotificationManagerInternal nmi = LocalServices.getService(
NotificationManagerInternal.class);
if (nmi == null) {
return;
}
nmi.removeForegroundServiceFlagFromNotification(localPackageName, localForegroundId,
localUserId);
}
});
}
public void clearDeliveredStartsLocked() {
for (int i=deliveredStarts.size()-1; i>=0; i--) {
deliveredStarts.get(i).removeUriPermissionsLocked();
}
deliveredStarts.clear();
}
public String toString() {
if (stringName != null) {
return stringName;
}
StringBuilder sb = new StringBuilder(128);
sb.append("ServiceRecord{")
.append(Integer.toHexString(System.identityHashCode(this)))
.append(" u").append(userId)
.append(' ').append(shortName).append('}');
return stringName = sb.toString();
}
}