ServiceRecord.java revision d0a2f86f357f346639a6648b4004266865c979b4
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; 20import com.android.server.NotificationManagerService; 21 22import android.app.INotificationManager; 23import android.app.Notification; 24import android.app.NotificationManager; 25import android.content.ComponentName; 26import android.content.Intent; 27import android.content.pm.ApplicationInfo; 28import android.content.pm.ServiceInfo; 29import android.os.Binder; 30import android.os.IBinder; 31import android.os.RemoteException; 32import android.os.SystemClock; 33import android.util.Slog; 34 35import java.io.PrintWriter; 36import java.util.ArrayList; 37import java.util.HashMap; 38import java.util.Iterator; 39import java.util.List; 40 41/** 42 * A running application service. 43 */ 44class ServiceRecord extends Binder { 45 final ActivityManagerService ams; 46 final BatteryStatsImpl.Uid.Pkg.Serv stats; 47 final ComponentName name; // service component. 48 final String shortName; // name.flattenToShortString(). 49 final Intent.FilterComparison intent; 50 // original intent used to find service. 51 final ServiceInfo serviceInfo; 52 // all information about the service. 53 final ApplicationInfo appInfo; 54 // information about service's app. 55 final String packageName; // the package implementing intent's component 56 final String processName; // process where this component wants to run 57 final String permission;// permission needed to access service 58 final String baseDir; // where activity source (resources etc) located 59 final String resDir; // where public activity source (public resources etc) located 60 final String dataDir; // where activity data should go 61 final boolean exported; // from ServiceInfo.exported 62 final Runnable restarter; // used to schedule retries of starting the service 63 final long createTime; // when this service was created 64 final HashMap<Intent.FilterComparison, IntentBindRecord> bindings 65 = new HashMap<Intent.FilterComparison, IntentBindRecord>(); 66 // All active bindings to the service. 67 final HashMap<IBinder, ConnectionRecord> connections 68 = new HashMap<IBinder, ConnectionRecord>(); 69 // IBinder -> ConnectionRecord of all bound clients 70 71 // Maximum number of delivery attempts before giving up. 72 static final int MAX_DELIVERY_COUNT = 3; 73 74 // Maximum number of times it can fail during execution before giving up. 75 static final int MAX_DONE_EXECUTING_COUNT = 6; 76 77 static class StartItem { 78 final int id; 79 final Intent intent; 80 long deliveredTime; 81 int deliveryCount; 82 int doneExecutingCount; 83 84 StartItem(int _id, Intent _intent) { 85 id = _id; 86 intent = _intent; 87 } 88 } 89 final ArrayList<StartItem> deliveredStarts = new ArrayList<StartItem>(); 90 // start() arguments which been delivered. 91 final ArrayList<StartItem> pendingStarts = new ArrayList<StartItem>(); 92 // start() arguments that haven't yet been delivered. 93 94 ProcessRecord app; // where this service is running or null. 95 boolean isForeground; // is service currently in foreground mode? 96 int foregroundId; // Notification ID of last foreground req. 97 Notification foregroundNoti; // Notification record of foreground state. 98 long lastActivity; // last time there was some activity on the service. 99 boolean startRequested; // someone explicitly called start? 100 boolean stopIfKilled; // last onStart() said to stop if service killed? 101 boolean callStart; // last onStart() has asked to alway be called on restart. 102 int lastStartId; // identifier of most recent start request. 103 int executeNesting; // number of outstanding operations keeping foreground. 104 long executingStart; // start time of last execute request. 105 int crashCount; // number of times proc has crashed with service running 106 int totalRestartCount; // number of times we have had to restart. 107 int restartCount; // number of restarts performed in a row. 108 long restartDelay; // delay until next restart attempt. 109 long restartTime; // time of last restart. 110 long nextRestartTime; // time when restartDelay will expire. 111 112 String stringName; // caching of toString 113 114 void dumpStartList(PrintWriter pw, String prefix, List<StartItem> list, long now) { 115 final int N = list.size(); 116 for (int i=0; i<N; i++) { 117 StartItem si = list.get(i); 118 pw.print(prefix); pw.print("#"); pw.print(i); 119 pw.print(" id="); pw.print(si.id); 120 if (now != 0) pw.print(" dur="); pw.print(now-si.deliveredTime); 121 if (si.deliveryCount != 0) { 122 pw.print(" dc="); pw.print(si.deliveryCount); 123 } 124 if (si.doneExecutingCount != 0) { 125 pw.print(" dxc="); pw.print(si.doneExecutingCount); 126 } 127 pw.print(" "); 128 if (si.intent != null) pw.println(si.intent.toString()); 129 else pw.println("null"); 130 } 131 } 132 133 void dump(PrintWriter pw, String prefix) { 134 pw.print(prefix); pw.print("intent={"); 135 pw.print(intent.getIntent().toShortString(true, false)); 136 pw.println('}'); 137 pw.print(prefix); pw.print("packageName="); pw.println(packageName); 138 pw.print(prefix); pw.print("processName="); pw.println(processName); 139 if (permission != null) { 140 pw.print(prefix); pw.print("permission="); pw.println(permission); 141 } 142 long now = SystemClock.uptimeMillis(); 143 pw.print(prefix); pw.print("baseDir="); pw.print(baseDir); 144 if (!resDir.equals(baseDir)) pw.print(" resDir="); pw.print(resDir); 145 pw.print(" dataDir="); pw.println(dataDir); 146 pw.print(prefix); pw.print("app="); pw.println(app); 147 if (isForeground || foregroundId != 0) { 148 pw.print(prefix); pw.print("isForeground="); pw.print(isForeground); 149 pw.print(" foregroundId="); pw.print(foregroundId); 150 pw.print(" foregroundNoti="); pw.println(foregroundNoti); 151 } 152 pw.print(prefix); pw.print("lastActivity="); pw.print(lastActivity-now); 153 pw.print(" executingStart="); pw.print(executingStart-now); 154 pw.print(" restartTime="); pw.println(restartTime); 155 if (startRequested || lastStartId != 0) { 156 pw.print(prefix); pw.print("startRequested="); pw.print(startRequested); 157 pw.print(" stopIfKilled="); pw.print(stopIfKilled); 158 pw.print(" callStart="); pw.print(callStart); 159 pw.print(" lastStartId="); pw.println(lastStartId); 160 } 161 if (executeNesting != 0 || crashCount != 0 || restartCount != 0 162 || restartDelay != 0 || nextRestartTime != 0) { 163 pw.print(prefix); pw.print("executeNesting="); pw.print(executeNesting); 164 pw.print(" restartCount="); pw.print(restartCount); 165 pw.print(" restartDelay="); pw.print(restartDelay-now); 166 pw.print(" nextRestartTime="); pw.print(nextRestartTime-now); 167 pw.print(" crashCount="); pw.println(crashCount); 168 } 169 if (deliveredStarts.size() > 0) { 170 pw.print(prefix); pw.println("Delivered Starts:"); 171 dumpStartList(pw, prefix, deliveredStarts, SystemClock.uptimeMillis()); 172 } 173 if (pendingStarts.size() > 0) { 174 pw.print(prefix); pw.println("Pending Starts:"); 175 dumpStartList(pw, prefix, pendingStarts, 0); 176 } 177 if (bindings.size() > 0) { 178 Iterator<IntentBindRecord> it = bindings.values().iterator(); 179 pw.print(prefix); pw.println("Bindings:"); 180 while (it.hasNext()) { 181 IntentBindRecord b = it.next(); 182 pw.print(prefix); pw.print("* IntentBindRecord{"); 183 pw.print(Integer.toHexString(System.identityHashCode(b))); 184 pw.println("}:"); 185 b.dumpInService(pw, prefix + " "); 186 } 187 } 188 if (connections.size() > 0) { 189 pw.print(prefix); pw.println("All Connections:"); 190 Iterator<ConnectionRecord> it = connections.values().iterator(); 191 while (it.hasNext()) { 192 ConnectionRecord c = it.next(); 193 pw.print(prefix); pw.print(" "); pw.println(c); 194 } 195 } 196 } 197 198 ServiceRecord(ActivityManagerService ams, 199 BatteryStatsImpl.Uid.Pkg.Serv servStats, ComponentName name, 200 Intent.FilterComparison intent, ServiceInfo sInfo, Runnable restarter) { 201 this.ams = ams; 202 this.stats = servStats; 203 this.name = name; 204 shortName = name.flattenToShortString(); 205 this.intent = intent; 206 serviceInfo = sInfo; 207 appInfo = sInfo.applicationInfo; 208 packageName = sInfo.applicationInfo.packageName; 209 processName = sInfo.processName; 210 permission = sInfo.permission; 211 baseDir = sInfo.applicationInfo.sourceDir; 212 resDir = sInfo.applicationInfo.publicSourceDir; 213 dataDir = sInfo.applicationInfo.dataDir; 214 exported = sInfo.exported; 215 this.restarter = restarter; 216 createTime = lastActivity = SystemClock.uptimeMillis(); 217 } 218 219 public AppBindRecord retrieveAppBindingLocked(Intent intent, 220 ProcessRecord app) { 221 Intent.FilterComparison filter = new Intent.FilterComparison(intent); 222 IntentBindRecord i = bindings.get(filter); 223 if (i == null) { 224 i = new IntentBindRecord(this, filter); 225 bindings.put(filter, i); 226 } 227 AppBindRecord a = i.apps.get(app); 228 if (a != null) { 229 return a; 230 } 231 a = new AppBindRecord(this, i, app); 232 i.apps.put(app, a); 233 return a; 234 } 235 236 public void resetRestartCounter() { 237 restartCount = 0; 238 restartDelay = 0; 239 restartTime = 0; 240 } 241 242 public StartItem findDeliveredStart(int id, boolean remove) { 243 final int N = deliveredStarts.size(); 244 for (int i=0; i<N; i++) { 245 StartItem si = deliveredStarts.get(i); 246 if (si.id == id) { 247 if (remove) deliveredStarts.remove(i); 248 return si; 249 } 250 } 251 252 return null; 253 } 254 255 public void postNotification() { 256 final int appUid = appInfo.uid; 257 final int appPid = app.pid; 258 if (foregroundId != 0 && foregroundNoti != null) { 259 // Do asynchronous communication with notification manager to 260 // avoid deadlocks. 261 final String localPackageName = packageName; 262 final int localForegroundId = foregroundId; 263 final Notification localForegroundNoti = foregroundNoti; 264 ams.mHandler.post(new Runnable() { 265 public void run() { 266 NotificationManagerService nm = 267 (NotificationManagerService) NotificationManager.getService(); 268 if (nm == null) { 269 return; 270 } 271 try { 272 int[] outId = new int[1]; 273 nm.enqueueNotificationInternal(localPackageName, appUid, appPid, 274 null, localForegroundId, localForegroundNoti, outId); 275 } catch (RuntimeException e) { 276 Slog.w(ActivityManagerService.TAG, 277 "Error showing notification for service", e); 278 // If it gave us a garbage notification, it doesn't 279 // get to be foreground. 280 ams.setServiceForeground(name, ServiceRecord.this, 281 localForegroundId, null, true); 282 } 283 } 284 }); 285 } 286 } 287 288 public void cancelNotification() { 289 if (foregroundId != 0) { 290 // Do asynchronous communication with notification manager to 291 // avoid deadlocks. 292 final String localPackageName = packageName; 293 final int localForegroundId = foregroundId; 294 ams.mHandler.post(new Runnable() { 295 public void run() { 296 INotificationManager inm = NotificationManager.getService(); 297 if (inm == null) { 298 return; 299 } 300 try { 301 inm.cancelNotification(localPackageName, localForegroundId); 302 } catch (RuntimeException e) { 303 Slog.w(ActivityManagerService.TAG, 304 "Error canceling notification for service", e); 305 } catch (RemoteException e) { 306 } 307 } 308 }); 309 } 310 } 311 312 public String toString() { 313 if (stringName != null) { 314 return stringName; 315 } 316 StringBuilder sb = new StringBuilder(128); 317 sb.append("ServiceRecord{") 318 .append(Integer.toHexString(System.identityHashCode(this))) 319 .append(' ').append(shortName).append('}'); 320 return stringName = sb.toString(); 321 } 322} 323