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 17 package com.android.server.am; 18 19 import com.android.internal.os.BatteryStatsImpl; 20 import com.android.server.NotificationManagerService; 21 22 import android.app.INotificationManager; 23 import android.app.Notification; 24 import android.app.NotificationManager; 25 import android.content.ComponentName; 26 import android.content.Intent; 27 import android.content.pm.ApplicationInfo; 28 import android.content.pm.ServiceInfo; 29 import android.os.Binder; 30 import android.os.IBinder; 31 import android.os.RemoteException; 32 import android.os.SystemClock; 33 import android.util.Slog; 34 import android.util.TimeUtils; 35 36 import java.io.PrintWriter; 37 import java.util.ArrayList; 38 import java.util.HashMap; 39 import java.util.HashSet; 40 import java.util.Iterator; 41 import java.util.List; 42 43 /** 44 * A running application service. 45 */ 46 class ServiceRecord extends Binder { 47 // Maximum number of delivery attempts before giving up. 48 static final int MAX_DELIVERY_COUNT = 3; 49 50 // Maximum number of times it can fail during execution before giving up. 51 static final int MAX_DONE_EXECUTING_COUNT = 6; 52 53 final ActivityManagerService ams; 54 final BatteryStatsImpl.Uid.Pkg.Serv stats; 55 final ComponentName name; // service component. 56 final String shortName; // name.flattenToShortString(). 57 final Intent.FilterComparison intent; 58 // original intent used to find service. 59 final ServiceInfo serviceInfo; 60 // all information about the service. 61 final ApplicationInfo appInfo; 62 // information about service's app. 63 final String packageName; // the package implementing intent's component 64 final String processName; // process where this component wants to run 65 final String permission;// permission needed to access service 66 final String baseDir; // where activity source (resources etc) located 67 final String resDir; // where public activity source (public resources etc) located 68 final String dataDir; // where activity data should go 69 final boolean exported; // from ServiceInfo.exported 70 final Runnable restarter; // used to schedule retries of starting the service 71 final long createTime; // when this service was created 72 final HashMap<Intent.FilterComparison, IntentBindRecord> bindings 73 = new HashMap<Intent.FilterComparison, IntentBindRecord>(); 74 // All active bindings to the service. 75 final HashMap<IBinder, ArrayList<ConnectionRecord>> connections 76 = new HashMap<IBinder, ArrayList<ConnectionRecord>>(); 77 // IBinder -> ConnectionRecord of all bound clients 78 79 ProcessRecord app; // where this service is running or null. 80 boolean isForeground; // is service currently in foreground mode? 81 int foregroundId; // Notification ID of last foreground req. 82 Notification foregroundNoti; // Notification record of foreground state. 83 long lastActivity; // last time there was some activity on the service. 84 boolean startRequested; // someone explicitly called start? 85 boolean stopIfKilled; // last onStart() said to stop if service killed? 86 boolean callStart; // last onStart() has asked to alway be called on restart. 87 int lastStartId; // identifier of most recent start request. 88 int executeNesting; // number of outstanding operations keeping foreground. 89 long executingStart; // start time of last execute request. 90 int crashCount; // number of times proc has crashed with service running 91 int totalRestartCount; // number of times we have had to restart. 92 int restartCount; // number of restarts performed in a row. 93 long restartDelay; // delay until next restart attempt. 94 long restartTime; // time of last restart. 95 long nextRestartTime; // time when restartDelay will expire. 96 97 String stringName; // caching of toString 98 99 static class StartItem { 100 final ServiceRecord sr; 101 final int id; 102 final Intent intent; 103 final int targetPermissionUid; 104 long deliveredTime; 105 int deliveryCount; 106 int doneExecutingCount; 107 UriPermissionOwner uriPermissions; 108 109 String stringName; // caching of toString 110 111 StartItem(ServiceRecord _sr, int _id, Intent _intent, int _targetPermissionUid) { 112 sr = _sr; 113 id = _id; 114 intent = _intent; 115 targetPermissionUid = _targetPermissionUid; 116 } 117 118 UriPermissionOwner getUriPermissionsLocked() { 119 if (uriPermissions == null) { 120 uriPermissions = new UriPermissionOwner(sr.ams, this); 121 } 122 return uriPermissions; 123 } 124 125 void removeUriPermissionsLocked() { 126 if (uriPermissions != null) { 127 uriPermissions.removeUriPermissionsLocked(); 128 uriPermissions = null; 129 } 130 } 131 132 public String toString() { 133 if (stringName != null) { 134 return stringName; 135 } 136 StringBuilder sb = new StringBuilder(128); 137 sb.append("ServiceRecord{") 138 .append(Integer.toHexString(System.identityHashCode(sr))) 139 .append(' ').append(sr.shortName) 140 .append(" StartItem ") 141 .append(Integer.toHexString(System.identityHashCode(this))) 142 .append(" id=").append(id).append('}'); 143 return stringName = sb.toString(); 144 } 145 } 146 147 final ArrayList<StartItem> deliveredStarts = new ArrayList<StartItem>(); 148 // start() arguments which been delivered. 149 final ArrayList<StartItem> pendingStarts = new ArrayList<StartItem>(); 150 // start() arguments that haven't yet been delivered. 151 152 void dumpStartList(PrintWriter pw, String prefix, List<StartItem> list, long now) { 153 final int N = list.size(); 154 for (int i=0; i<N; i++) { 155 StartItem si = list.get(i); 156 pw.print(prefix); pw.print("#"); pw.print(i); 157 pw.print(" id="); pw.print(si.id); 158 if (now != 0) { 159 pw.print(" dur="); 160 TimeUtils.formatDuration(si.deliveredTime, now, pw); 161 } 162 if (si.deliveryCount != 0) { 163 pw.print(" dc="); pw.print(si.deliveryCount); 164 } 165 if (si.doneExecutingCount != 0) { 166 pw.print(" dxc="); pw.print(si.doneExecutingCount); 167 } 168 pw.println(""); 169 pw.print(prefix); pw.print(" intent="); 170 if (si.intent != null) pw.println(si.intent.toString()); 171 else pw.println("null"); 172 if (si.targetPermissionUid >= 0) { 173 pw.print(prefix); pw.print(" targetPermissionUid="); 174 pw.println(si.targetPermissionUid); 175 } 176 if (si.uriPermissions != null) { 177 if (si.uriPermissions.readUriPermissions != null) { 178 pw.print(prefix); pw.print(" readUriPermissions="); 179 pw.println(si.uriPermissions.readUriPermissions); 180 } 181 if (si.uriPermissions.writeUriPermissions != null) { 182 pw.print(prefix); pw.print(" writeUriPermissions="); 183 pw.println(si.uriPermissions.writeUriPermissions); 184 } 185 } 186 } 187 } 188 189 void dump(PrintWriter pw, String prefix) { 190 pw.print(prefix); pw.print("intent={"); 191 pw.print(intent.getIntent().toShortString(true, false)); 192 pw.println('}'); 193 pw.print(prefix); pw.print("packageName="); pw.println(packageName); 194 pw.print(prefix); pw.print("processName="); pw.println(processName); 195 if (permission != null) { 196 pw.print(prefix); pw.print("permission="); pw.println(permission); 197 } 198 long now = SystemClock.uptimeMillis(); 199 long nowReal = SystemClock.elapsedRealtime(); 200 pw.print(prefix); pw.print("baseDir="); pw.println(baseDir); 201 if (!resDir.equals(baseDir)) pw.print(prefix); pw.print("resDir="); pw.println(resDir); 202 pw.print(prefix); pw.print("dataDir="); pw.println(dataDir); 203 pw.print(prefix); pw.print("app="); pw.println(app); 204 if (isForeground || foregroundId != 0) { 205 pw.print(prefix); pw.print("isForeground="); pw.print(isForeground); 206 pw.print(" foregroundId="); pw.print(foregroundId); 207 pw.print(" foregroundNoti="); pw.println(foregroundNoti); 208 } 209 pw.print(prefix); pw.print("createTime="); 210 TimeUtils.formatDuration(createTime, nowReal, pw); 211 pw.print(" lastActivity="); 212 TimeUtils.formatDuration(lastActivity, now, pw); 213 pw.println(""); 214 pw.print(prefix); pw.print(" executingStart="); 215 TimeUtils.formatDuration(executingStart, now, pw); 216 pw.print(" restartTime="); 217 TimeUtils.formatDuration(restartTime, now, pw); 218 pw.println(""); 219 if (startRequested || lastStartId != 0) { 220 pw.print(prefix); pw.print("startRequested="); pw.print(startRequested); 221 pw.print(" stopIfKilled="); pw.print(stopIfKilled); 222 pw.print(" callStart="); pw.print(callStart); 223 pw.print(" lastStartId="); pw.println(lastStartId); 224 } 225 if (executeNesting != 0 || crashCount != 0 || restartCount != 0 226 || restartDelay != 0 || nextRestartTime != 0) { 227 pw.print(prefix); pw.print("executeNesting="); pw.print(executeNesting); 228 pw.print(" restartCount="); pw.print(restartCount); 229 pw.print(" restartDelay="); 230 TimeUtils.formatDuration(restartDelay, now, pw); 231 pw.print(" nextRestartTime="); 232 TimeUtils.formatDuration(nextRestartTime, now, pw); 233 pw.print(" crashCount="); pw.println(crashCount); 234 } 235 if (deliveredStarts.size() > 0) { 236 pw.print(prefix); pw.println("Delivered Starts:"); 237 dumpStartList(pw, prefix, deliveredStarts, now); 238 } 239 if (pendingStarts.size() > 0) { 240 pw.print(prefix); pw.println("Pending Starts:"); 241 dumpStartList(pw, prefix, pendingStarts, 0); 242 } 243 if (bindings.size() > 0) { 244 Iterator<IntentBindRecord> it = bindings.values().iterator(); 245 pw.print(prefix); pw.println("Bindings:"); 246 while (it.hasNext()) { 247 IntentBindRecord b = it.next(); 248 pw.print(prefix); pw.print("* IntentBindRecord{"); 249 pw.print(Integer.toHexString(System.identityHashCode(b))); 250 pw.println("}:"); 251 b.dumpInService(pw, prefix + " "); 252 } 253 } 254 if (connections.size() > 0) { 255 pw.print(prefix); pw.println("All Connections:"); 256 Iterator<ArrayList<ConnectionRecord>> it = connections.values().iterator(); 257 while (it.hasNext()) { 258 ArrayList<ConnectionRecord> c = it.next(); 259 for (int i=0; i<c.size(); i++) { 260 pw.print(prefix); pw.print(" "); pw.println(c.get(i)); 261 } 262 } 263 } 264 } 265 266 ServiceRecord(ActivityManagerService ams, 267 BatteryStatsImpl.Uid.Pkg.Serv servStats, ComponentName name, 268 Intent.FilterComparison intent, ServiceInfo sInfo, Runnable restarter) { 269 this.ams = ams; 270 this.stats = servStats; 271 this.name = name; 272 shortName = name.flattenToShortString(); 273 this.intent = intent; 274 serviceInfo = sInfo; 275 appInfo = sInfo.applicationInfo; 276 packageName = sInfo.applicationInfo.packageName; 277 processName = sInfo.processName; 278 permission = sInfo.permission; 279 baseDir = sInfo.applicationInfo.sourceDir; 280 resDir = sInfo.applicationInfo.publicSourceDir; 281 dataDir = sInfo.applicationInfo.dataDir; 282 exported = sInfo.exported; 283 this.restarter = restarter; 284 createTime = SystemClock.elapsedRealtime(); 285 lastActivity = SystemClock.uptimeMillis(); 286 } 287 288 public AppBindRecord retrieveAppBindingLocked(Intent intent, 289 ProcessRecord app) { 290 Intent.FilterComparison filter = new Intent.FilterComparison(intent); 291 IntentBindRecord i = bindings.get(filter); 292 if (i == null) { 293 i = new IntentBindRecord(this, filter); 294 bindings.put(filter, i); 295 } 296 AppBindRecord a = i.apps.get(app); 297 if (a != null) { 298 return a; 299 } 300 a = new AppBindRecord(this, i, app); 301 i.apps.put(app, a); 302 return a; 303 } 304 305 public void resetRestartCounter() { 306 restartCount = 0; 307 restartDelay = 0; 308 restartTime = 0; 309 } 310 311 public StartItem findDeliveredStart(int id, boolean remove) { 312 final int N = deliveredStarts.size(); 313 for (int i=0; i<N; i++) { 314 StartItem si = deliveredStarts.get(i); 315 if (si.id == id) { 316 if (remove) deliveredStarts.remove(i); 317 return si; 318 } 319 } 320 321 return null; 322 } 323 324 public void postNotification() { 325 final int appUid = appInfo.uid; 326 final int appPid = app.pid; 327 if (foregroundId != 0 && foregroundNoti != null) { 328 // Do asynchronous communication with notification manager to 329 // avoid deadlocks. 330 final String localPackageName = packageName; 331 final int localForegroundId = foregroundId; 332 final Notification localForegroundNoti = foregroundNoti; 333 ams.mHandler.post(new Runnable() { 334 public void run() { 335 NotificationManagerService nm = 336 (NotificationManagerService) NotificationManager.getService(); 337 if (nm == null) { 338 return; 339 } 340 try { 341 int[] outId = new int[1]; 342 nm.enqueueNotificationInternal(localPackageName, appUid, appPid, 343 null, localForegroundId, localForegroundNoti, outId); 344 } catch (RuntimeException e) { 345 Slog.w(ActivityManagerService.TAG, 346 "Error showing notification for service", e); 347 // If it gave us a garbage notification, it doesn't 348 // get to be foreground. 349 ams.setServiceForeground(name, ServiceRecord.this, 350 0, null, true); 351 ams.crashApplication(appUid, appPid, localPackageName, 352 "Bad notification for startForeground: " + e); 353 } 354 } 355 }); 356 } 357 } 358 359 public void cancelNotification() { 360 if (foregroundId != 0) { 361 // Do asynchronous communication with notification manager to 362 // avoid deadlocks. 363 final String localPackageName = packageName; 364 final int localForegroundId = foregroundId; 365 ams.mHandler.post(new Runnable() { 366 public void run() { 367 INotificationManager inm = NotificationManager.getService(); 368 if (inm == null) { 369 return; 370 } 371 try { 372 inm.cancelNotification(localPackageName, localForegroundId); 373 } catch (RuntimeException e) { 374 Slog.w(ActivityManagerService.TAG, 375 "Error canceling notification for service", e); 376 } catch (RemoteException e) { 377 } 378 } 379 }); 380 } 381 } 382 383 public void clearDeliveredStartsLocked() { 384 for (int i=deliveredStarts.size()-1; i>=0; i--) { 385 deliveredStarts.get(i).removeUriPermissionsLocked(); 386 } 387 deliveredStarts.clear(); 388 } 389 390 public String toString() { 391 if (stringName != null) { 392 return stringName; 393 } 394 StringBuilder sb = new StringBuilder(128); 395 sb.append("ServiceRecord{") 396 .append(Integer.toHexString(System.identityHashCode(this))) 397 .append(' ').append(shortName).append('}'); 398 return stringName = sb.toString(); 399 } 400 } 401
