ServiceRecord.java revision f210d6b75e2c0fe60b90c074ff9f615c1137f23e 
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.server.am;
18
19import com.android.internal.os.BatteryStatsImpl;
20
21import android.content.ComponentName;
22import android.content.Intent;
23import android.content.pm.ApplicationInfo;
24import android.content.pm.ServiceInfo;
25import android.os.Binder;
26import android.os.IBinder;
27import android.os.SystemClock;
28
29import java.io.PrintWriter;
30import java.util.ArrayList;
31import java.util.HashMap;
32import java.util.Iterator;
33import java.util.List;
34
35/**
36 * A running application service.
37 */
38class ServiceRecord extends Binder {
39    final BatteryStatsImpl.Uid.Pkg.Serv stats;
40    final ComponentName name; // service component.
41    final String shortName; // name.flattenToShortString().
42    final Intent.FilterComparison intent;
43                            // original intent used to find service.
44    final ServiceInfo serviceInfo;
45                            // all information about the service.
46    final ApplicationInfo appInfo;
47                            // information about service's app.
48    final String packageName; // the package implementing intent's component
49    final String processName; // process where this component wants to run
50    final String permission;// permission needed to access service
51    final String baseDir;   // where activity source (resources etc) located
52    final String resDir;   // where public activity source (public resources etc) located
53    final String dataDir;   // where activity data should go
54    final boolean exported; // from ServiceInfo.exported
55    final Runnable restarter; // used to schedule retries of starting the service
56    final long createTime;  // when this service was created
57    final HashMap<Intent.FilterComparison, IntentBindRecord> bindings
58            = new HashMap<Intent.FilterComparison, IntentBindRecord>();
59                            // All active bindings to the service.
60    final HashMap<IBinder, ConnectionRecord> connections
61            = new HashMap<IBinder, ConnectionRecord>();
62                            // IBinder -> ConnectionRecord of all bound clients
63    final List<Intent> startArgs = new ArrayList<Intent>();
64                            // start() arguments that haven't yet been delivered.
65
66    ProcessRecord app;  // where this service is running or null.
67    boolean isForeground;   // asked to run as a foreground service?
68    long lastActivity;      // last time there was some activity on the service.
69    boolean startRequested; // someone explicitly called start?
70    int lastStartId;        // identifier of most recent start request.
71    int executeNesting;     // number of outstanding operations keeping foreground.
72    long executingStart;    // start time of last execute request.
73    int crashCount;         // number of times proc has crashed with service running
74    int totalRestartCount;  // number of times we have had to restart.
75    int restartCount;       // number of restarts performed in a row.
76    long restartDelay;      // delay until next restart attempt.
77    long restartTime;       // time of last restart.
78    long nextRestartTime;   // time when restartDelay will expire.
79
80    String stringName;      // caching of toString
81
82    void dump(PrintWriter pw, String prefix) {
83        pw.println(prefix + this);
84        pw.println(prefix + "intent=" + intent.getIntent());
85        pw.println(prefix + "packageName=" + packageName);
86        pw.println(prefix + "processName=" + processName);
87        pw.println(prefix + "permission=" + permission);
88        pw.println(prefix + "baseDir=" + baseDir+ " resDir=" + resDir + " dataDir=" + dataDir);
89        pw.println(prefix + "app=" + app);
90        pw.println(prefix + "isForeground=" + isForeground
91                + " lastActivity=" + lastActivity);
92        pw.println(prefix + "startRequested=" + startRequested
93              + " startId=" + lastStartId
94              + " executeNesting=" + executeNesting
95              + " executingStart=" + executingStart
96              + " crashCount=" + crashCount);
97        pw.println(prefix + "totalRestartCount=" + totalRestartCount
98                + " restartCount=" + restartCount
99                + " restartDelay=" + restartDelay
100                + " restartTime=" + restartTime
101                + " nextRestartTime=" + nextRestartTime);
102        if (bindings.size() > 0) {
103            pw.println(prefix + "Bindings:");
104            Iterator<IntentBindRecord> it = bindings.values().iterator();
105            while (it.hasNext()) {
106                IntentBindRecord b = it.next();
107                pw.println(prefix + "Binding " + b);
108                b.dump(pw, prefix + "  ");
109            }
110        }
111        if (connections.size() > 0) {
112            pw.println(prefix + "All Connections:");
113            Iterator<ConnectionRecord> it = connections.values().iterator();
114            while (it.hasNext()) {
115                ConnectionRecord c = it.next();
116                pw.println(prefix + "  " + c);
117            }
118        }
119    }
120
121    ServiceRecord(BatteryStatsImpl.Uid.Pkg.Serv servStats, ComponentName name,
122            Intent.FilterComparison intent, ServiceInfo sInfo, Runnable restarter) {
123        this.stats = servStats;
124        this.name = name;
125        shortName = name.flattenToShortString();
126        this.intent = intent;
127        serviceInfo = sInfo;
128        appInfo = sInfo.applicationInfo;
129        packageName = sInfo.applicationInfo.packageName;
130        processName = sInfo.processName;
131        permission = sInfo.permission;
132        baseDir = sInfo.applicationInfo.sourceDir;
133        resDir = sInfo.applicationInfo.publicSourceDir;
134        dataDir = sInfo.applicationInfo.dataDir;
135        exported = sInfo.exported;
136        this.restarter = restarter;
137        createTime = lastActivity = SystemClock.uptimeMillis();
138    }
139
140    public AppBindRecord retrieveAppBindingLocked(Intent intent,
141            ProcessRecord app) {
142        Intent.FilterComparison filter = new Intent.FilterComparison(intent);
143        IntentBindRecord i = bindings.get(filter);
144        if (i == null) {
145            i = new IntentBindRecord(this, filter);
146            bindings.put(filter, i);
147        }
148        AppBindRecord a = i.apps.get(app);
149        if (a != null) {
150            return a;
151        }
152        a = new AppBindRecord(this, i, app);
153        i.apps.put(app, a);
154        return a;
155    }
156
157    public void resetRestartCounter() {
158        restartCount = 0;
159        restartDelay = 0;
160        restartTime = 0;
161    }
162
163    public String toString() {
164        if (stringName != null) {
165            return stringName;
166        }
167        StringBuilder sb = new StringBuilder(128);
168        sb.append("ServiceRecord{");
169        sb.append(Integer.toHexString(System.identityHashCode(this)));
170        sb.append(' ');
171        sb.append(shortName);
172        sb.append('}');
173        return stringName = sb.toString();
174    }
175}
176