ServiceRecord.java revision 0c5001d776d56bae02a5cc2663286a125d99bc5e
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; 34import android.util.TimeUtils; 35 36import java.io.PrintWriter; 37import java.util.ArrayList; 38import java.util.HashMap; 39import java.util.HashSet; 40import java.util.Iterator; 41import java.util.List; 42 43/** 44 * A running application service. 45 */ 46class 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 executeNesting; // number of outstanding operations keeping foreground. 88 long executingStart; // start time of last execute request. 89 int crashCount; // number of times proc has crashed with service running 90 int totalRestartCount; // number of times we have had to restart. 91 int restartCount; // number of restarts performed in a row. 92 long restartDelay; // delay until next restart attempt. 93 long restartTime; // time of last restart. 94 long nextRestartTime; // time when restartDelay will expire. 95 96 String stringName; // caching of toString 97 98 private int lastStartId; // identifier of most recent start request. 99 100 static class StartItem { 101 final ServiceRecord sr; 102 final boolean taskRemoved; 103 final int id; 104 final Intent intent; 105 final int targetPermissionUid; 106 long deliveredTime; 107 int deliveryCount; 108 int doneExecutingCount; 109 UriPermissionOwner uriPermissions; 110 111 String stringName; // caching of toString 112 113 StartItem(ServiceRecord _sr, boolean _taskRemoved, int _id, Intent _intent, 114 int _targetPermissionUid) { 115 sr = _sr; 116 taskRemoved = _taskRemoved; 117 id = _id; 118 intent = _intent; 119 targetPermissionUid = _targetPermissionUid; 120 } 121 122 UriPermissionOwner getUriPermissionsLocked() { 123 if (uriPermissions == null) { 124 uriPermissions = new UriPermissionOwner(sr.ams, this); 125 } 126 return uriPermissions; 127 } 128 129 void removeUriPermissionsLocked() { 130 if (uriPermissions != null) { 131 uriPermissions.removeUriPermissionsLocked(); 132 uriPermissions = null; 133 } 134 } 135 136 public String toString() { 137 if (stringName != null) { 138 return stringName; 139 } 140 StringBuilder sb = new StringBuilder(128); 141 sb.append("ServiceRecord{") 142 .append(Integer.toHexString(System.identityHashCode(sr))) 143 .append(' ').append(sr.shortName) 144 .append(" StartItem ") 145 .append(Integer.toHexString(System.identityHashCode(this))) 146 .append(" id=").append(id).append('}'); 147 return stringName = sb.toString(); 148 } 149 } 150 151 final ArrayList<StartItem> deliveredStarts = new ArrayList<StartItem>(); 152 // start() arguments which been delivered. 153 final ArrayList<StartItem> pendingStarts = new ArrayList<StartItem>(); 154 // start() arguments that haven't yet been delivered. 155 156 void dumpStartList(PrintWriter pw, String prefix, List<StartItem> list, long now) { 157 final int N = list.size(); 158 for (int i=0; i<N; i++) { 159 StartItem si = list.get(i); 160 pw.print(prefix); pw.print("#"); pw.print(i); 161 pw.print(" id="); pw.print(si.id); 162 if (now != 0) { 163 pw.print(" dur="); 164 TimeUtils.formatDuration(si.deliveredTime, now, pw); 165 } 166 if (si.deliveryCount != 0) { 167 pw.print(" dc="); pw.print(si.deliveryCount); 168 } 169 if (si.doneExecutingCount != 0) { 170 pw.print(" dxc="); pw.print(si.doneExecutingCount); 171 } 172 pw.println(""); 173 pw.print(prefix); pw.print(" intent="); 174 if (si.intent != null) pw.println(si.intent.toString()); 175 else pw.println("null"); 176 if (si.targetPermissionUid >= 0) { 177 pw.print(prefix); pw.print(" targetPermissionUid="); 178 pw.println(si.targetPermissionUid); 179 } 180 if (si.uriPermissions != null) { 181 if (si.uriPermissions.readUriPermissions != null) { 182 pw.print(prefix); pw.print(" readUriPermissions="); 183 pw.println(si.uriPermissions.readUriPermissions); 184 } 185 if (si.uriPermissions.writeUriPermissions != null) { 186 pw.print(prefix); pw.print(" writeUriPermissions="); 187 pw.println(si.uriPermissions.writeUriPermissions); 188 } 189 } 190 } 191 } 192 193 void dump(PrintWriter pw, String prefix) { 194 pw.print(prefix); pw.print("intent={"); 195 pw.print(intent.getIntent().toShortString(true, false)); 196 pw.println('}'); 197 pw.print(prefix); pw.print("packageName="); pw.println(packageName); 198 pw.print(prefix); pw.print("processName="); pw.println(processName); 199 if (permission != null) { 200 pw.print(prefix); pw.print("permission="); pw.println(permission); 201 } 202 long now = SystemClock.uptimeMillis(); 203 long nowReal = SystemClock.elapsedRealtime(); 204 pw.print(prefix); pw.print("baseDir="); pw.println(baseDir); 205 if (!resDir.equals(baseDir)) pw.print(prefix); pw.print("resDir="); pw.println(resDir); 206 pw.print(prefix); pw.print("dataDir="); pw.println(dataDir); 207 pw.print(prefix); pw.print("app="); pw.println(app); 208 if (isForeground || foregroundId != 0) { 209 pw.print(prefix); pw.print("isForeground="); pw.print(isForeground); 210 pw.print(" foregroundId="); pw.print(foregroundId); 211 pw.print(" foregroundNoti="); pw.println(foregroundNoti); 212 } 213 pw.print(prefix); pw.print("createTime="); 214 TimeUtils.formatDuration(createTime, nowReal, pw); 215 pw.print(" lastActivity="); 216 TimeUtils.formatDuration(lastActivity, now, pw); 217 pw.println(""); 218 pw.print(prefix); pw.print("executingStart="); 219 TimeUtils.formatDuration(executingStart, now, pw); 220 pw.print(" restartTime="); 221 TimeUtils.formatDuration(restartTime, now, pw); 222 pw.println(""); 223 if (startRequested || lastStartId != 0) { 224 pw.print(prefix); pw.print("startRequested="); pw.print(startRequested); 225 pw.print(" stopIfKilled="); pw.print(stopIfKilled); 226 pw.print(" callStart="); pw.print(callStart); 227 pw.print(" lastStartId="); pw.println(lastStartId); 228 } 229 if (executeNesting != 0 || crashCount != 0 || restartCount != 0 230 || restartDelay != 0 || nextRestartTime != 0) { 231 pw.print(prefix); pw.print("executeNesting="); pw.print(executeNesting); 232 pw.print(" restartCount="); pw.print(restartCount); 233 pw.print(" restartDelay="); 234 TimeUtils.formatDuration(restartDelay, now, pw); 235 pw.print(" nextRestartTime="); 236 TimeUtils.formatDuration(nextRestartTime, now, pw); 237 pw.print(" crashCount="); pw.println(crashCount); 238 } 239 if (deliveredStarts.size() > 0) { 240 pw.print(prefix); pw.println("Delivered Starts:"); 241 dumpStartList(pw, prefix, deliveredStarts, now); 242 } 243 if (pendingStarts.size() > 0) { 244 pw.print(prefix); pw.println("Pending Starts:"); 245 dumpStartList(pw, prefix, pendingStarts, 0); 246 } 247 if (bindings.size() > 0) { 248 Iterator<IntentBindRecord> it = bindings.values().iterator(); 249 pw.print(prefix); pw.println("Bindings:"); 250 while (it.hasNext()) { 251 IntentBindRecord b = it.next(); 252 pw.print(prefix); pw.print("* IntentBindRecord{"); 253 pw.print(Integer.toHexString(System.identityHashCode(b))); 254 pw.println("}:"); 255 b.dumpInService(pw, prefix + " "); 256 } 257 } 258 if (connections.size() > 0) { 259 pw.print(prefix); pw.println("All Connections:"); 260 Iterator<ArrayList<ConnectionRecord>> it = connections.values().iterator(); 261 while (it.hasNext()) { 262 ArrayList<ConnectionRecord> c = it.next(); 263 for (int i=0; i<c.size(); i++) { 264 pw.print(prefix); pw.print(" "); pw.println(c.get(i)); 265 } 266 } 267 } 268 } 269 270 ServiceRecord(ActivityManagerService ams, 271 BatteryStatsImpl.Uid.Pkg.Serv servStats, ComponentName name, 272 Intent.FilterComparison intent, ServiceInfo sInfo, Runnable restarter) { 273 this.ams = ams; 274 this.stats = servStats; 275 this.name = name; 276 shortName = name.flattenToShortString(); 277 this.intent = intent; 278 serviceInfo = sInfo; 279 appInfo = sInfo.applicationInfo; 280 packageName = sInfo.applicationInfo.packageName; 281 processName = sInfo.processName; 282 permission = sInfo.permission; 283 baseDir = sInfo.applicationInfo.sourceDir; 284 resDir = sInfo.applicationInfo.publicSourceDir; 285 dataDir = sInfo.applicationInfo.dataDir; 286 exported = sInfo.exported; 287 this.restarter = restarter; 288 createTime = SystemClock.elapsedRealtime(); 289 lastActivity = SystemClock.uptimeMillis(); 290 } 291 292 public AppBindRecord retrieveAppBindingLocked(Intent intent, 293 ProcessRecord app) { 294 Intent.FilterComparison filter = new Intent.FilterComparison(intent); 295 IntentBindRecord i = bindings.get(filter); 296 if (i == null) { 297 i = new IntentBindRecord(this, filter); 298 bindings.put(filter, i); 299 } 300 AppBindRecord a = i.apps.get(app); 301 if (a != null) { 302 return a; 303 } 304 a = new AppBindRecord(this, i, app); 305 i.apps.put(app, a); 306 return a; 307 } 308 309 public void resetRestartCounter() { 310 restartCount = 0; 311 restartDelay = 0; 312 restartTime = 0; 313 } 314 315 public StartItem findDeliveredStart(int id, boolean remove) { 316 final int N = deliveredStarts.size(); 317 for (int i=0; i<N; i++) { 318 StartItem si = deliveredStarts.get(i); 319 if (si.id == id) { 320 if (remove) deliveredStarts.remove(i); 321 return si; 322 } 323 } 324 325 return null; 326 } 327 328 public int getLastStartId() { 329 return lastStartId; 330 } 331 332 public int makeNextStartId() { 333 lastStartId++; 334 if (lastStartId < 1) { 335 lastStartId = 1; 336 } 337 return lastStartId; 338 } 339 340 public void postNotification() { 341 final int appUid = appInfo.uid; 342 final int appPid = app.pid; 343 if (foregroundId != 0 && foregroundNoti != null) { 344 // Do asynchronous communication with notification manager to 345 // avoid deadlocks. 346 final String localPackageName = packageName; 347 final int localForegroundId = foregroundId; 348 final Notification localForegroundNoti = foregroundNoti; 349 ams.mHandler.post(new Runnable() { 350 public void run() { 351 NotificationManagerService nm = 352 (NotificationManagerService) NotificationManager.getService(); 353 if (nm == null) { 354 return; 355 } 356 try { 357 int[] outId = new int[1]; 358 nm.enqueueNotificationInternal(localPackageName, appUid, appPid, 359 null, localForegroundId, localForegroundNoti, outId); 360 } catch (RuntimeException e) { 361 Slog.w(ActivityManagerService.TAG, 362 "Error showing notification for service", e); 363 // If it gave us a garbage notification, it doesn't 364 // get to be foreground. 365 ams.setServiceForeground(name, ServiceRecord.this, 366 0, null, true); 367 ams.crashApplication(appUid, appPid, localPackageName, 368 "Bad notification for startForeground: " + e); 369 } 370 } 371 }); 372 } 373 } 374 375 public void cancelNotification() { 376 if (foregroundId != 0) { 377 // Do asynchronous communication with notification manager to 378 // avoid deadlocks. 379 final String localPackageName = packageName; 380 final int localForegroundId = foregroundId; 381 ams.mHandler.post(new Runnable() { 382 public void run() { 383 INotificationManager inm = NotificationManager.getService(); 384 if (inm == null) { 385 return; 386 } 387 try { 388 inm.cancelNotification(localPackageName, localForegroundId); 389 } catch (RuntimeException e) { 390 Slog.w(ActivityManagerService.TAG, 391 "Error canceling notification for service", e); 392 } catch (RemoteException e) { 393 } 394 } 395 }); 396 } 397 } 398 399 public void clearDeliveredStartsLocked() { 400 for (int i=deliveredStarts.size()-1; i>=0; i--) { 401 deliveredStarts.get(i).removeUriPermissionsLocked(); 402 } 403 deliveredStarts.clear(); 404 } 405 406 public String toString() { 407 if (stringName != null) { 408 return stringName; 409 } 410 StringBuilder sb = new StringBuilder(128); 411 sb.append("ServiceRecord{") 412 .append(Integer.toHexString(System.identityHashCode(this))) 413 .append(' ').append(shortName).append('}'); 414 return stringName = sb.toString(); 415 } 416} 417