ServiceRecord.java revision 846318a3250fa95f47a9decfbffb05a31dbd0006
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.app.ProcessStats; 20import com.android.internal.os.BatteryStatsImpl; 21import com.android.server.LocalServices; 22import com.android.server.notification.NotificationManagerInternal; 23 24import android.app.INotificationManager; 25import android.app.Notification; 26import android.app.NotificationManager; 27import android.app.PendingIntent; 28import android.content.ComponentName; 29import android.content.Context; 30import android.content.Intent; 31import android.content.pm.ApplicationInfo; 32import android.content.pm.PackageManager; 33import android.content.pm.ServiceInfo; 34import android.net.Uri; 35import android.os.Binder; 36import android.os.IBinder; 37import android.os.RemoteException; 38import android.os.SystemClock; 39import android.os.UserHandle; 40import android.provider.Settings; 41import android.util.ArrayMap; 42import android.util.Slog; 43import android.util.TimeUtils; 44 45import java.io.PrintWriter; 46import java.util.ArrayList; 47import java.util.List; 48 49/** 50 * A running application service. 51 */ 52final class ServiceRecord extends Binder { 53 // Maximum number of delivery attempts before giving up. 54 static final int MAX_DELIVERY_COUNT = 3; 55 56 // Maximum number of times it can fail during execution before giving up. 57 static final int MAX_DONE_EXECUTING_COUNT = 6; 58 59 final ActivityManagerService ams; 60 final BatteryStatsImpl.Uid.Pkg.Serv stats; 61 final ComponentName name; // service component. 62 final String shortName; // name.flattenToShortString(). 63 final Intent.FilterComparison intent; 64 // original intent used to find service. 65 final ServiceInfo serviceInfo; 66 // all information about the service. 67 final ApplicationInfo appInfo; 68 // information about service's app. 69 final int userId; // user that this service is running as 70 final String packageName; // the package implementing intent's component 71 final String processName; // process where this component wants to run 72 final String permission;// permission needed to access service 73 final String baseDir; // where activity source (resources etc) located 74 final String resDir; // where public activity source (public resources etc) located 75 final String dataDir; // where activity data should go 76 final boolean exported; // from ServiceInfo.exported 77 final Runnable restarter; // used to schedule retries of starting the service 78 final long createTime; // when this service was created 79 final ArrayMap<Intent.FilterComparison, IntentBindRecord> bindings 80 = new ArrayMap<Intent.FilterComparison, IntentBindRecord>(); 81 // All active bindings to the service. 82 final ArrayMap<IBinder, ArrayList<ConnectionRecord>> connections 83 = new ArrayMap<IBinder, ArrayList<ConnectionRecord>>(); 84 // IBinder -> ConnectionRecord of all bound clients 85 86 ProcessRecord app; // where this service is running or null. 87 ProcessRecord isolatedProc; // keep track of isolated process, if requested 88 ProcessStats.ServiceState tracker; // tracking service execution, may be null 89 ProcessStats.ServiceState restartTracker; // tracking service restart 90 boolean delayed; // are we waiting to start this service in the background? 91 boolean isForeground; // is service currently in foreground mode? 92 int foregroundId; // Notification ID of last foreground req. 93 Notification foregroundNoti; // Notification record of foreground state. 94 long lastActivity; // last time there was some activity on the service. 95 long startingBgTimeout; // time at which we scheduled this for a delayed start. 96 boolean startRequested; // someone explicitly called start? 97 boolean delayedStop; // service has been stopped but is in a delayed start? 98 boolean stopIfKilled; // last onStart() said to stop if service killed? 99 boolean callStart; // last onStart() has asked to alway be called on restart. 100 int executeNesting; // number of outstanding operations keeping foreground. 101 boolean executeFg; // should we be executing in the foreground? 102 long executingStart; // start time of last execute request. 103 boolean createdFromFg; // was this service last created due to a foreground process call? 104 int crashCount; // number of times proc has crashed with service running 105 int totalRestartCount; // number of times we have had to restart. 106 int restartCount; // number of restarts performed in a row. 107 long restartDelay; // delay until next restart attempt. 108 long restartTime; // time of last restart. 109 long nextRestartTime; // time when restartDelay will expire. 110 111 String stringName; // caching of toString 112 113 private int lastStartId; // identifier of most recent start request. 114 115 static class StartItem { 116 final ServiceRecord sr; 117 final boolean taskRemoved; 118 final int id; 119 final Intent intent; 120 final ActivityManagerService.NeededUriGrants neededGrants; 121 long deliveredTime; 122 int deliveryCount; 123 int doneExecutingCount; 124 UriPermissionOwner uriPermissions; 125 126 String stringName; // caching of toString 127 128 StartItem(ServiceRecord _sr, boolean _taskRemoved, int _id, Intent _intent, 129 ActivityManagerService.NeededUriGrants _neededGrants) { 130 sr = _sr; 131 taskRemoved = _taskRemoved; 132 id = _id; 133 intent = _intent; 134 neededGrants = _neededGrants; 135 } 136 137 UriPermissionOwner getUriPermissionsLocked() { 138 if (uriPermissions == null) { 139 uriPermissions = new UriPermissionOwner(sr.ams, this); 140 } 141 return uriPermissions; 142 } 143 144 void removeUriPermissionsLocked() { 145 if (uriPermissions != null) { 146 uriPermissions.removeUriPermissionsLocked(); 147 uriPermissions = null; 148 } 149 } 150 151 public String toString() { 152 if (stringName != null) { 153 return stringName; 154 } 155 StringBuilder sb = new StringBuilder(128); 156 sb.append("ServiceRecord{") 157 .append(Integer.toHexString(System.identityHashCode(sr))) 158 .append(' ').append(sr.shortName) 159 .append(" StartItem ") 160 .append(Integer.toHexString(System.identityHashCode(this))) 161 .append(" id=").append(id).append('}'); 162 return stringName = sb.toString(); 163 } 164 } 165 166 final ArrayList<StartItem> deliveredStarts = new ArrayList<StartItem>(); 167 // start() arguments which been delivered. 168 final ArrayList<StartItem> pendingStarts = new ArrayList<StartItem>(); 169 // start() arguments that haven't yet been delivered. 170 171 void dumpStartList(PrintWriter pw, String prefix, List<StartItem> list, long now) { 172 final int N = list.size(); 173 for (int i=0; i<N; i++) { 174 StartItem si = list.get(i); 175 pw.print(prefix); pw.print("#"); pw.print(i); 176 pw.print(" id="); pw.print(si.id); 177 if (now != 0) { 178 pw.print(" dur="); 179 TimeUtils.formatDuration(si.deliveredTime, now, pw); 180 } 181 if (si.deliveryCount != 0) { 182 pw.print(" dc="); pw.print(si.deliveryCount); 183 } 184 if (si.doneExecutingCount != 0) { 185 pw.print(" dxc="); pw.print(si.doneExecutingCount); 186 } 187 pw.println(""); 188 pw.print(prefix); pw.print(" intent="); 189 if (si.intent != null) pw.println(si.intent.toString()); 190 else pw.println("null"); 191 if (si.neededGrants != null) { 192 pw.print(prefix); pw.print(" neededGrants="); 193 pw.println(si.neededGrants); 194 } 195 if (si.uriPermissions != null) { 196 si.uriPermissions.dump(pw, prefix); 197 } 198 } 199 } 200 201 void dump(PrintWriter pw, String prefix) { 202 pw.print(prefix); pw.print("intent={"); 203 pw.print(intent.getIntent().toShortString(false, true, false, true)); 204 pw.println('}'); 205 pw.print(prefix); pw.print("packageName="); pw.println(packageName); 206 pw.print(prefix); pw.print("processName="); pw.println(processName); 207 if (permission != null) { 208 pw.print(prefix); pw.print("permission="); pw.println(permission); 209 } 210 long now = SystemClock.uptimeMillis(); 211 long nowReal = SystemClock.elapsedRealtime(); 212 pw.print(prefix); pw.print("baseDir="); pw.println(baseDir); 213 if (!resDir.equals(baseDir)) { 214 pw.print(prefix); pw.print("resDir="); pw.println(resDir); 215 } 216 pw.print(prefix); pw.print("dataDir="); pw.println(dataDir); 217 pw.print(prefix); pw.print("app="); pw.println(app); 218 if (isolatedProc != null) { 219 pw.print(prefix); pw.print("isolatedProc="); pw.println(isolatedProc); 220 } 221 if (delayed) { 222 pw.print(prefix); pw.print("delayed="); pw.println(delayed); 223 } 224 if (isForeground || foregroundId != 0) { 225 pw.print(prefix); pw.print("isForeground="); pw.print(isForeground); 226 pw.print(" foregroundId="); pw.print(foregroundId); 227 pw.print(" foregroundNoti="); pw.println(foregroundNoti); 228 } 229 pw.print(prefix); pw.print("createTime="); 230 TimeUtils.formatDuration(createTime, nowReal, pw); 231 pw.print(" startingBgTimeout="); 232 TimeUtils.formatDuration(startingBgTimeout, now, pw); 233 pw.println(); 234 pw.print(prefix); pw.print("lastActivity="); 235 TimeUtils.formatDuration(lastActivity, now, pw); 236 pw.print(" restartTime="); 237 TimeUtils.formatDuration(restartTime, now, pw); 238 pw.print(" createdFromFg="); pw.println(createdFromFg); 239 if (startRequested || delayedStop || lastStartId != 0) { 240 pw.print(prefix); pw.print("startRequested="); pw.print(startRequested); 241 pw.print(" delayedStop="); pw.print(delayedStop); 242 pw.print(" stopIfKilled="); pw.print(stopIfKilled); 243 pw.print(" callStart="); pw.print(callStart); 244 pw.print(" lastStartId="); pw.println(lastStartId); 245 } 246 if (executeNesting != 0) { 247 pw.print(prefix); pw.print("executeNesting="); pw.print(executeNesting); 248 pw.print(" executeFg="); pw.print(executeFg); 249 pw.print(" executingStart="); 250 TimeUtils.formatDuration(executingStart, now, pw); 251 pw.println(); 252 } 253 if (crashCount != 0 || restartCount != 0 254 || restartDelay != 0 || nextRestartTime != 0) { 255 pw.print(prefix); pw.print("restartCount="); pw.print(restartCount); 256 pw.print(" restartDelay="); 257 TimeUtils.formatDuration(restartDelay, now, pw); 258 pw.print(" nextRestartTime="); 259 TimeUtils.formatDuration(nextRestartTime, now, pw); 260 pw.print(" crashCount="); pw.println(crashCount); 261 } 262 if (deliveredStarts.size() > 0) { 263 pw.print(prefix); pw.println("Delivered Starts:"); 264 dumpStartList(pw, prefix, deliveredStarts, now); 265 } 266 if (pendingStarts.size() > 0) { 267 pw.print(prefix); pw.println("Pending Starts:"); 268 dumpStartList(pw, prefix, pendingStarts, 0); 269 } 270 if (bindings.size() > 0) { 271 pw.print(prefix); pw.println("Bindings:"); 272 for (int i=0; i<bindings.size(); i++) { 273 IntentBindRecord b = bindings.valueAt(i); 274 pw.print(prefix); pw.print("* IntentBindRecord{"); 275 pw.print(Integer.toHexString(System.identityHashCode(b))); 276 if ((b.collectFlags()&Context.BIND_AUTO_CREATE) != 0) { 277 pw.append(" CREATE"); 278 } 279 pw.println("}:"); 280 b.dumpInService(pw, prefix + " "); 281 } 282 } 283 if (connections.size() > 0) { 284 pw.print(prefix); pw.println("All Connections:"); 285 for (int conni=0; conni<connections.size(); conni++) { 286 ArrayList<ConnectionRecord> c = connections.valueAt(conni); 287 for (int i=0; i<c.size(); i++) { 288 pw.print(prefix); pw.print(" "); pw.println(c.get(i)); 289 } 290 } 291 } 292 } 293 294 ServiceRecord(ActivityManagerService ams, 295 BatteryStatsImpl.Uid.Pkg.Serv servStats, ComponentName name, 296 Intent.FilterComparison intent, ServiceInfo sInfo, boolean callerIsFg, 297 Runnable restarter) { 298 this.ams = ams; 299 this.stats = servStats; 300 this.name = name; 301 shortName = name.flattenToShortString(); 302 this.intent = intent; 303 serviceInfo = sInfo; 304 appInfo = sInfo.applicationInfo; 305 packageName = sInfo.applicationInfo.packageName; 306 processName = sInfo.processName; 307 permission = sInfo.permission; 308 baseDir = sInfo.applicationInfo.sourceDir; 309 resDir = sInfo.applicationInfo.publicSourceDir; 310 dataDir = sInfo.applicationInfo.dataDir; 311 exported = sInfo.exported; 312 this.restarter = restarter; 313 createTime = SystemClock.elapsedRealtime(); 314 lastActivity = SystemClock.uptimeMillis(); 315 userId = UserHandle.getUserId(appInfo.uid); 316 createdFromFg = callerIsFg; 317 } 318 319 public ProcessStats.ServiceState getTracker() { 320 if (tracker != null) { 321 return tracker; 322 } 323 if ((serviceInfo.applicationInfo.flags&ApplicationInfo.FLAG_PERSISTENT) == 0) { 324 tracker = ams.mProcessStats.getServiceStateLocked(serviceInfo.packageName, 325 serviceInfo.applicationInfo.uid, serviceInfo.applicationInfo.versionCode, 326 serviceInfo.processName, serviceInfo.name); 327 tracker.applyNewOwner(this); 328 } 329 return tracker; 330 } 331 332 public void forceClearTracker() { 333 if (tracker != null) { 334 tracker.clearCurrentOwner(this, true); 335 tracker = null; 336 } 337 } 338 339 public void makeRestarting(int memFactor, long now) { 340 if (restartTracker == null) { 341 if ((serviceInfo.applicationInfo.flags&ApplicationInfo.FLAG_PERSISTENT) == 0) { 342 restartTracker = ams.mProcessStats.getServiceStateLocked(serviceInfo.packageName, 343 serviceInfo.applicationInfo.uid, serviceInfo.applicationInfo.versionCode, 344 serviceInfo.processName, serviceInfo.name); 345 } 346 if (restartTracker == null) { 347 return; 348 } 349 } 350 restartTracker.setRestarting(true, memFactor, now); 351 } 352 353 public AppBindRecord retrieveAppBindingLocked(Intent intent, 354 ProcessRecord app) { 355 Intent.FilterComparison filter = new Intent.FilterComparison(intent); 356 IntentBindRecord i = bindings.get(filter); 357 if (i == null) { 358 i = new IntentBindRecord(this, filter); 359 bindings.put(filter, i); 360 } 361 AppBindRecord a = i.apps.get(app); 362 if (a != null) { 363 return a; 364 } 365 a = new AppBindRecord(this, i, app); 366 i.apps.put(app, a); 367 return a; 368 } 369 370 public boolean hasAutoCreateConnections() { 371 // XXX should probably keep a count of the number of auto-create 372 // connections directly in the service. 373 for (int conni=connections.size()-1; conni>=0; conni--) { 374 ArrayList<ConnectionRecord> cr = connections.valueAt(conni); 375 for (int i=0; i<cr.size(); i++) { 376 if ((cr.get(i).flags&Context.BIND_AUTO_CREATE) != 0) { 377 return true; 378 } 379 } 380 } 381 return false; 382 } 383 384 public void resetRestartCounter() { 385 restartCount = 0; 386 restartDelay = 0; 387 restartTime = 0; 388 } 389 390 public StartItem findDeliveredStart(int id, boolean remove) { 391 final int N = deliveredStarts.size(); 392 for (int i=0; i<N; i++) { 393 StartItem si = deliveredStarts.get(i); 394 if (si.id == id) { 395 if (remove) deliveredStarts.remove(i); 396 return si; 397 } 398 } 399 400 return null; 401 } 402 403 public int getLastStartId() { 404 return lastStartId; 405 } 406 407 public int makeNextStartId() { 408 lastStartId++; 409 if (lastStartId < 1) { 410 lastStartId = 1; 411 } 412 return lastStartId; 413 } 414 415 public void postNotification() { 416 final int appUid = appInfo.uid; 417 final int appPid = app.pid; 418 if (foregroundId != 0 && foregroundNoti != null) { 419 // Do asynchronous communication with notification manager to 420 // avoid deadlocks. 421 final String localPackageName = packageName; 422 final int localForegroundId = foregroundId; 423 final Notification localForegroundNoti = foregroundNoti; 424 ams.mHandler.post(new Runnable() { 425 public void run() { 426 NotificationManagerInternal nm = LocalServices.getService( 427 NotificationManagerInternal.class); 428 if (nm == null) { 429 return; 430 } 431 try { 432 if (localForegroundNoti.icon == 0) { 433 // It is not correct for the caller to supply a notification 434 // icon, but this used to be able to slip through, so for 435 // those dirty apps give it the app's icon. 436 localForegroundNoti.icon = appInfo.icon; 437 438 // Do not allow apps to present a sneaky invisible content view either. 439 localForegroundNoti.contentView = null; 440 localForegroundNoti.bigContentView = null; 441 CharSequence appName = appInfo.loadLabel( 442 ams.mContext.getPackageManager()); 443 if (appName == null) { 444 appName = appInfo.packageName; 445 } 446 Context ctx = null; 447 try { 448 ctx = ams.mContext.createPackageContext( 449 appInfo.packageName, 0); 450 Intent runningIntent = new Intent( 451 Settings.ACTION_APPLICATION_DETAILS_SETTINGS); 452 runningIntent.setData(Uri.fromParts("package", 453 appInfo.packageName, null)); 454 PendingIntent pi = PendingIntent.getActivity(ams.mContext, 0, 455 runningIntent, PendingIntent.FLAG_UPDATE_CURRENT); 456 localForegroundNoti.setLatestEventInfo(ctx, 457 ams.mContext.getString( 458 com.android.internal.R.string 459 .app_running_notification_title, 460 appName), 461 ams.mContext.getString( 462 com.android.internal.R.string 463 .app_running_notification_text, 464 appName), 465 pi); 466 } catch (PackageManager.NameNotFoundException e) { 467 localForegroundNoti.icon = 0; 468 } 469 } 470 if (localForegroundNoti.icon == 0) { 471 // Notifications whose icon is 0 are defined to not show 472 // a notification, silently ignoring it. We don't want to 473 // just ignore it, we want to prevent the service from 474 // being foreground. 475 throw new RuntimeException("icon must be non-zero"); 476 } 477 int[] outId = new int[1]; 478 nm.enqueueNotification(localPackageName, localPackageName, 479 appUid, appPid, null, localForegroundId, localForegroundNoti, 480 outId, userId); 481 } catch (RuntimeException e) { 482 Slog.w(ActivityManagerService.TAG, 483 "Error showing notification for service", e); 484 // If it gave us a garbage notification, it doesn't 485 // get to be foreground. 486 ams.setServiceForeground(name, ServiceRecord.this, 487 0, null, true); 488 ams.crashApplication(appUid, appPid, localPackageName, 489 "Bad notification for startForeground: " + e); 490 } 491 } 492 }); 493 } 494 } 495 496 public void cancelNotification() { 497 if (foregroundId != 0) { 498 // Do asynchronous communication with notification manager to 499 // avoid deadlocks. 500 final String localPackageName = packageName; 501 final int localForegroundId = foregroundId; 502 ams.mHandler.post(new Runnable() { 503 public void run() { 504 INotificationManager inm = NotificationManager.getService(); 505 if (inm == null) { 506 return; 507 } 508 try { 509 inm.cancelNotificationWithTag(localPackageName, null, 510 localForegroundId, userId); 511 } catch (RuntimeException e) { 512 Slog.w(ActivityManagerService.TAG, 513 "Error canceling notification for service", e); 514 } catch (RemoteException e) { 515 } 516 } 517 }); 518 } 519 } 520 521 public void clearDeliveredStartsLocked() { 522 for (int i=deliveredStarts.size()-1; i>=0; i--) { 523 deliveredStarts.get(i).removeUriPermissionsLocked(); 524 } 525 deliveredStarts.clear(); 526 } 527 528 public String toString() { 529 if (stringName != null) { 530 return stringName; 531 } 532 StringBuilder sb = new StringBuilder(128); 533 sb.append("ServiceRecord{") 534 .append(Integer.toHexString(System.identityHashCode(this))) 535 .append(" u").append(userId) 536 .append(' ').append(shortName).append('}'); 537 return stringName = sb.toString(); 538 } 539} 540