/*
* 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.os.BatteryStatsImpl;
import android.app.INotificationManager;
import android.app.Notification;
import android.app.NotificationManager;
import android.content.ComponentName;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.ServiceInfo;
import android.os.Binder;
import android.os.IBinder;
import android.os.RemoteException;
import android.os.SystemClock;
import android.util.Slog;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
/**
* A running application service.
*/
class ServiceRecord extends Binder {
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 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 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
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 HashMap<Intent.FilterComparison, IntentBindRecord> bindings
= new HashMap<Intent.FilterComparison, IntentBindRecord>();
// All active bindings to the service.
final HashMap<IBinder, ConnectionRecord> connections
= new HashMap<IBinder, ConnectionRecord>();
// IBinder -> ConnectionRecord of all bound clients
// 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;
static class StartItem {
final int id;
final Intent intent;
long deliveredTime;
int deliveryCount;
int doneExecutingCount;
StartItem(int _id, Intent _intent) {
id = _id;
intent = _intent;
}
}
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.
ProcessRecord app; // where this service is running or null.
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.
boolean startRequested; // someone explicitly called start?
boolean stopIfKilled; // last onStart() said to stop if service killed?
boolean callStart; // last onStart() has asked to alway be called on restart.
int lastStartId; // identifier of most recent start request.
int executeNesting; // number of outstanding operations keeping foreground.
long executingStart; // start time of last execute request.
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.
String stringName; // caching of toString
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="); pw.print(now-si.deliveredTime);
if (si.deliveryCount != 0) {
pw.print(" dc="); pw.print(si.deliveryCount);
}
if (si.doneExecutingCount != 0) {
pw.print(" dxc="); pw.print(si.doneExecutingCount);
}
pw.print(" ");
if (si.intent != null) pw.println(si.intent.toString());
else pw.println("null");
}
}
void dump(PrintWriter pw, String prefix) {
pw.print(prefix); pw.print("intent={");
pw.print(intent.getIntent().toShortString(true, false));
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();
pw.print(prefix); pw.print("baseDir="); pw.print(baseDir);
if (!resDir.equals(baseDir)) pw.print(" resDir="); pw.print(resDir);
pw.print(" dataDir="); pw.println(dataDir);
pw.print(prefix); pw.print("app="); pw.println(app);
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("lastActivity="); pw.print(lastActivity-now);
pw.print(" executingStart="); pw.print(executingStart-now);
pw.print(" restartTime="); pw.println(restartTime);
if (startRequested || lastStartId != 0) {
pw.print(prefix); pw.print("startRequested="); pw.print(startRequested);
pw.print(" stopIfKilled="); pw.print(stopIfKilled);
pw.print(" callStart="); pw.print(callStart);
pw.print(" lastStartId="); pw.println(lastStartId);
}
if (executeNesting != 0 || crashCount != 0 || restartCount != 0
|| restartDelay != 0 || nextRestartTime != 0) {
pw.print(prefix); pw.print("executeNesting="); pw.print(executeNesting);
pw.print(" restartCount="); pw.print(restartCount);
pw.print(" restartDelay="); pw.print(restartDelay-now);
pw.print(" nextRestartTime="); pw.print(nextRestartTime-now);
pw.print(" crashCount="); pw.println(crashCount);
}
if (deliveredStarts.size() > 0) {
pw.print(prefix); pw.println("Delivered Starts:");
dumpStartList(pw, prefix, deliveredStarts, SystemClock.uptimeMillis());
}
if (pendingStarts.size() > 0) {
pw.print(prefix); pw.println("Pending Starts:");
dumpStartList(pw, prefix, pendingStarts, 0);
}
if (bindings.size() > 0) {
Iterator<IntentBindRecord> it = bindings.values().iterator();
pw.print(prefix); pw.println("Bindings:");
while (it.hasNext()) {
IntentBindRecord b = it.next();
pw.print(prefix); pw.print("* IntentBindRecord{");
pw.print(Integer.toHexString(System.identityHashCode(b)));
pw.println("}:");
b.dumpInService(pw, prefix + " ");
}
}
if (connections.size() > 0) {
pw.print(prefix); pw.println("All Connections:");
Iterator<ConnectionRecord> it = connections.values().iterator();
while (it.hasNext()) {
ConnectionRecord c = it.next();
pw.print(prefix); pw.print(" "); pw.println(c);
}
}
}
ServiceRecord(ActivityManagerService ams,
BatteryStatsImpl.Uid.Pkg.Serv servStats, ComponentName name,
Intent.FilterComparison intent, ServiceInfo sInfo, 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;
baseDir = sInfo.applicationInfo.sourceDir;
resDir = sInfo.applicationInfo.publicSourceDir;
dataDir = sInfo.applicationInfo.dataDir;
exported = sInfo.exported;
this.restarter = restarter;
createTime = lastActivity = SystemClock.uptimeMillis();
}
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 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 void postNotification() {
if (foregroundId != 0 && foregroundNoti != null) {
// Do asynchronous communication with notification manager to
// avoid deadlocks.
final String localPackageName = packageName;
final int localForegroundId = foregroundId;
final Notification localForegroundNoti = foregroundNoti;
ams.mHandler.post(new Runnable() {
public void run() {
INotificationManager inm = NotificationManager.getService();
if (inm == null) {
return;
}
try {
int[] outId = new int[1];
inm.enqueueNotification(localPackageName, localForegroundId,
localForegroundNoti, outId);
} catch (RuntimeException e) {
Slog.w(ActivityManagerService.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,
localForegroundId, null, true);
} catch (RemoteException 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.cancelNotification(localPackageName, localForegroundId);
} catch (RuntimeException e) {
Slog.w(ActivityManagerService.TAG,
"Error canceling notification for service", e);
} catch (RemoteException e) {
}
}
});
}
}
public String toString() {
if (stringName != null) {
return stringName;
}
StringBuilder sb = new StringBuilder(128);
sb.append("ServiceRecord{")
.append(Integer.toHexString(System.identityHashCode(this)))
.append(' ').append(shortName).append('}');
return stringName = sb.toString();
}
}