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.app.ProcessStats; 20 import com.android.internal.os.BatteryStatsImpl; 21 import com.android.server.NotificationManagerService; 22 23 import android.app.INotificationManager; 24 import android.app.Notification; 25 import android.app.NotificationManager; 26 import android.app.PendingIntent; 27 import android.content.ComponentName; 28 import android.content.Context; 29 import android.content.Intent; 30 import android.content.pm.ApplicationInfo; 31 import android.content.pm.PackageManager; 32 import android.content.pm.ServiceInfo; 33 import android.net.Uri; 34 import android.os.Binder; 35 import android.os.IBinder; 36 import android.os.RemoteException; 37 import android.os.SystemClock; 38 import android.os.UserHandle; 39 import android.provider.Settings; 40 import android.util.ArrayMap; 41 import android.util.Slog; 42 import android.util.TimeUtils; 43 44 import java.io.PrintWriter; 45 import java.util.ArrayList; 46 import java.util.List; 47 48 /** 49 * A running application service. 50 */ 51 final class ServiceRecord extends Binder { 52 // Maximum number of delivery attempts before giving up. 53 static final int MAX_DELIVERY_COUNT = 3; 54 55 // Maximum number of times it can fail during execution before giving up. 56 static final int MAX_DONE_EXECUTING_COUNT = 6; 57 58 final ActivityManagerService ams; 59 final BatteryStatsImpl.Uid.Pkg.Serv stats; 60 final ComponentName name; // service component. 61 final String shortName; // name.flattenToShortString(). 62 final Intent.FilterComparison intent; 63 // original intent used to find service. 64 final ServiceInfo serviceInfo; 65 // all information about the service. 66 final ApplicationInfo appInfo; 67 // information about service's app. 68 final int userId; // user that this service is running as 69 final String packageName; // the package implementing intent's component 70 final String processName; // process where this component wants to run 71 final String permission;// permission needed to access service 72 final String baseDir; // where activity source (resources etc) located 73 final String resDir; // where public activity source (public resources etc) located 74 final String dataDir; // where activity data should go 75 final boolean exported; // from ServiceInfo.exported 76 final Runnable restarter; // used to schedule retries of starting the service 77 final long createTime; // when this service was created 78 final ArrayMap<Intent.FilterComparison, IntentBindRecord> bindings 79 = new ArrayMap<Intent.FilterComparison, IntentBindRecord>(); 80 // All active bindings to the service. 81 final ArrayMap<IBinder, ArrayList<ConnectionRecord>> connections 82 = new ArrayMap<IBinder, ArrayList<ConnectionRecord>>(); 83 // IBinder -> ConnectionRecord of all bound clients 84 85 ProcessRecord app; // where this service is running or null. 86 ProcessRecord isolatedProc; // keep track of isolated process, if requested 87 ProcessStats.ServiceState tracker; // tracking service execution, may be null 88 ProcessStats.ServiceState restartTracker; // tracking service restart 89 boolean delayed; // are we waiting to start this service in the background? 90 boolean isForeground; // is service currently in foreground mode? 91 int foregroundId; // Notification ID of last foreground req. 92 Notification foregroundNoti; // Notification record of foreground state. 93 long lastActivity; // last time there was some activity on the service. 94 long startingBgTimeout; // time at which we scheduled this for a delayed start. 95 boolean startRequested; // someone explicitly called start? 96 boolean delayedStop; // service has been stopped but is in a delayed start? 97 boolean stopIfKilled; // last onStart() said to stop if service killed? 98 boolean callStart; // last onStart() has asked to alway be called on restart. 99 int executeNesting; // number of outstanding operations keeping foreground. 100 boolean executeFg; // should we be executing in the foreground? 101 long executingStart; // start time of last execute request. 102 boolean createdFromFg; // was this service last created due to a foreground process call? 103 int crashCount; // number of times proc has crashed with service running 104 int totalRestartCount; // number of times we have had to restart. 105 int restartCount; // number of restarts performed in a row. 106 long restartDelay; // delay until next restart attempt. 107 long restartTime; // time of last restart. 108 long nextRestartTime; // time when restartDelay will expire. 109 110 String stringName; // caching of toString 111 112 private int lastStartId; // identifier of most recent start request. 113 114 static class StartItem { 115 final ServiceRecord sr; 116 final boolean taskRemoved; 117 final int id; 118 final Intent intent; 119 final ActivityManagerService.NeededUriGrants neededGrants; 120 long deliveredTime; 121 int deliveryCount; 122 int doneExecutingCount; 123 UriPermissionOwner uriPermissions; 124 125 String stringName; // caching of toString 126 127 StartItem(ServiceRecord _sr, boolean _taskRemoved, int _id, Intent _intent, 128 ActivityManagerService.NeededUriGrants _neededGrants) { 129 sr = _sr; 130 taskRemoved = _taskRemoved; 131 id = _id; 132 intent = _intent; 133 neededGrants = _neededGrants; 134 } 135 136 UriPermissionOwner getUriPermissionsLocked() { 137 if (uriPermissions == null) { 138 uriPermissions = new UriPermissionOwner(sr.ams, this); 139 } 140 return uriPermissions; 141 } 142 143 void removeUriPermissionsLocked() { 144 if (uriPermissions != null) { 145 uriPermissions.removeUriPermissionsLocked(); 146 uriPermissions = null; 147 } 148 } 149 150 public String toString() { 151 if (stringName != null) { 152 return stringName; 153 } 154 StringBuilder sb = new StringBuilder(128); 155 sb.append("ServiceRecord{") 156 .append(Integer.toHexString(System.identityHashCode(sr))) 157 .append(' ').append(sr.shortName) 158 .append(" StartItem ") 159 .append(Integer.toHexString(System.identityHashCode(this))) 160 .append(" id=").append(id).append('}'); 161 return stringName = sb.toString(); 162 } 163 } 164 165 final ArrayList<StartItem> deliveredStarts = new ArrayList<StartItem>(); 166 // start() arguments which been delivered. 167 final ArrayList<StartItem> pendingStarts = new ArrayList<StartItem>(); 168 // start() arguments that haven't yet been delivered. 169 170 void dumpStartList(PrintWriter pw, String prefix, List<StartItem> list, long now) { 171 final int N = list.size(); 172 for (int i=0; i<N; i++) { 173 StartItem si = list.get(i); 174 pw.print(prefix); pw.print("#"); pw.print(i); 175 pw.print(" id="); pw.print(si.id); 176 if (now != 0) { 177 pw.print(" dur="); 178 TimeUtils.formatDuration(si.deliveredTime, now, pw); 179 } 180 if (si.deliveryCount != 0) { 181 pw.print(" dc="); pw.print(si.deliveryCount); 182 } 183 if (si.doneExecutingCount != 0) { 184 pw.print(" dxc="); pw.print(si.doneExecutingCount); 185 } 186 pw.println(""); 187 pw.print(prefix); pw.print(" intent="); 188 if (si.intent != null) pw.println(si.intent.toString()); 189 else pw.println("null"); 190 if (si.neededGrants != null) { 191 pw.print(prefix); pw.print(" neededGrants="); 192 pw.println(si.neededGrants); 193 } 194 if (si.uriPermissions != null) { 195 if (si.uriPermissions.readUriPermissions != null) { 196 pw.print(prefix); pw.print(" readUriPermissions="); 197 pw.println(si.uriPermissions.readUriPermissions); 198 } 199 if (si.uriPermissions.writeUriPermissions != null) { 200 pw.print(prefix); pw.print(" writeUriPermissions="); 201 pw.println(si.uriPermissions.writeUriPermissions); 202 } 203 } 204 } 205 } 206 207 void dump(PrintWriter pw, String prefix) { 208 pw.print(prefix); pw.print("intent={"); 209 pw.print(intent.getIntent().toShortString(false, true, false, true)); 210 pw.println('}'); 211 pw.print(prefix); pw.print("packageName="); pw.println(packageName); 212 pw.print(prefix); pw.print("processName="); pw.println(processName); 213 if (permission != null) { 214 pw.print(prefix); pw.print("permission="); pw.println(permission); 215 } 216 long now = SystemClock.uptimeMillis(); 217 long nowReal = SystemClock.elapsedRealtime(); 218 pw.print(prefix); pw.print("baseDir="); pw.println(baseDir); 219 if (!resDir.equals(baseDir)) { 220 pw.print(prefix); pw.print("resDir="); pw.println(resDir); 221 } 222 pw.print(prefix); pw.print("dataDir="); pw.println(dataDir); 223 pw.print(prefix); pw.print("app="); pw.println(app); 224 if (isolatedProc != null) { 225 pw.print(prefix); pw.print("isolatedProc="); pw.println(isolatedProc); 226 } 227 if (delayed) { 228 pw.print(prefix); pw.print("delayed="); pw.println(delayed); 229 } 230 if (isForeground || foregroundId != 0) { 231 pw.print(prefix); pw.print("isForeground="); pw.print(isForeground); 232 pw.print(" foregroundId="); pw.print(foregroundId); 233 pw.print(" foregroundNoti="); pw.println(foregroundNoti); 234 } 235 pw.print(prefix); pw.print("createTime="); 236 TimeUtils.formatDuration(createTime, nowReal, pw); 237 pw.print(" startingBgTimeout="); 238 TimeUtils.formatDuration(startingBgTimeout, now, pw); 239 pw.println(); 240 pw.print(prefix); pw.print("lastActivity="); 241 TimeUtils.formatDuration(lastActivity, now, pw); 242 pw.print(" restartTime="); 243 TimeUtils.formatDuration(restartTime, now, pw); 244 pw.print(" createdFromFg="); pw.println(createdFromFg); 245 if (startRequested || delayedStop || lastStartId != 0) { 246 pw.print(prefix); pw.print("startRequested="); pw.print(startRequested); 247 pw.print(" delayedStop="); pw.print(delayedStop); 248 pw.print(" stopIfKilled="); pw.print(stopIfKilled); 249 pw.print(" callStart="); pw.print(callStart); 250 pw.print(" lastStartId="); pw.println(lastStartId); 251 } 252 if (executeNesting != 0) { 253 pw.print(prefix); pw.print("executeNesting="); pw.print(executeNesting); 254 pw.print(" executeFg="); pw.print(executeFg); 255 pw.print(" executingStart="); 256 TimeUtils.formatDuration(executingStart, now, pw); 257 pw.println(); 258 } 259 if (crashCount != 0 || restartCount != 0 260 || restartDelay != 0 || nextRestartTime != 0) { 261 pw.print(prefix); pw.print("restartCount="); pw.print(restartCount); 262 pw.print(" restartDelay="); 263 TimeUtils.formatDuration(restartDelay, now, pw); 264 pw.print(" nextRestartTime="); 265 TimeUtils.formatDuration(nextRestartTime, now, pw); 266 pw.print(" crashCount="); pw.println(crashCount); 267 } 268 if (deliveredStarts.size() > 0) { 269 pw.print(prefix); pw.println("Delivered Starts:"); 270 dumpStartList(pw, prefix, deliveredStarts, now); 271 } 272 if (pendingStarts.size() > 0) { 273 pw.print(prefix); pw.println("Pending Starts:"); 274 dumpStartList(pw, prefix, pendingStarts, 0); 275 } 276 if (bindings.size() > 0) { 277 pw.print(prefix); pw.println("Bindings:"); 278 for (int i=0; i<bindings.size(); i++) { 279 IntentBindRecord b = bindings.valueAt(i); 280 pw.print(prefix); pw.print("* IntentBindRecord{"); 281 pw.print(Integer.toHexString(System.identityHashCode(b))); 282 if ((b.collectFlags()&Context.BIND_AUTO_CREATE) != 0) { 283 pw.append(" CREATE"); 284 } 285 pw.println("}:"); 286 b.dumpInService(pw, prefix + " "); 287 } 288 } 289 if (connections.size() > 0) { 290 pw.print(prefix); pw.println("All Connections:"); 291 for (int conni=0; conni<connections.size(); conni++) { 292 ArrayList<ConnectionRecord> c = connections.valueAt(conni); 293 for (int i=0; i<c.size(); i++) { 294 pw.print(prefix); pw.print(" "); pw.println(c.get(i)); 295 } 296 } 297 } 298 } 299 300 ServiceRecord(ActivityManagerService ams, 301 BatteryStatsImpl.Uid.Pkg.Serv servStats, ComponentName name, 302 Intent.FilterComparison intent, ServiceInfo sInfo, boolean callerIsFg, 303 Runnable restarter) { 304 this.ams = ams; 305 this.stats = servStats; 306 this.name = name; 307 shortName = name.flattenToShortString(); 308 this.intent = intent; 309 serviceInfo = sInfo; 310 appInfo = sInfo.applicationInfo; 311 packageName = sInfo.applicationInfo.packageName; 312 processName = sInfo.processName; 313 permission = sInfo.permission; 314 baseDir = sInfo.applicationInfo.sourceDir; 315 resDir = sInfo.applicationInfo.publicSourceDir; 316 dataDir = sInfo.applicationInfo.dataDir; 317 exported = sInfo.exported; 318 this.restarter = restarter; 319 createTime = SystemClock.elapsedRealtime(); 320 lastActivity = SystemClock.uptimeMillis(); 321 userId = UserHandle.getUserId(appInfo.uid); 322 createdFromFg = callerIsFg; 323 } 324 325 public ProcessStats.ServiceState getTracker() { 326 if (tracker != null) { 327 return tracker; 328 } 329 if ((serviceInfo.applicationInfo.flags&ApplicationInfo.FLAG_PERSISTENT) == 0) { 330 tracker = ams.mProcessStats.getServiceStateLocked(serviceInfo.packageName, 331 serviceInfo.applicationInfo.uid, serviceInfo.processName, serviceInfo.name); 332 tracker.applyNewOwner(this); 333 } 334 return tracker; 335 } 336 337 public void forceClearTracker() { 338 if (tracker != null) { 339 tracker.clearCurrentOwner(this, true); 340 tracker = null; 341 } 342 } 343 344 public void makeRestarting(int memFactor, long now) { 345 if (restartTracker == null) { 346 if ((serviceInfo.applicationInfo.flags&ApplicationInfo.FLAG_PERSISTENT) == 0) { 347 restartTracker = ams.mProcessStats.getServiceStateLocked(serviceInfo.packageName, 348 serviceInfo.applicationInfo.uid, serviceInfo.processName, serviceInfo.name); 349 } 350 if (restartTracker == null) { 351 return; 352 } 353 } 354 restartTracker.setRestarting(true, memFactor, now); 355 } 356 357 public AppBindRecord retrieveAppBindingLocked(Intent intent, 358 ProcessRecord app) { 359 Intent.FilterComparison filter = new Intent.FilterComparison(intent); 360 IntentBindRecord i = bindings.get(filter); 361 if (i == null) { 362 i = new IntentBindRecord(this, filter); 363 bindings.put(filter, i); 364 } 365 AppBindRecord a = i.apps.get(app); 366 if (a != null) { 367 return a; 368 } 369 a = new AppBindRecord(this, i, app); 370 i.apps.put(app, a); 371 return a; 372 } 373 374 public boolean hasAutoCreateConnections() { 375 // XXX should probably keep a count of the number of auto-create 376 // connections directly in the service. 377 for (int conni=connections.size()-1; conni>=0; conni--) { 378 ArrayList<ConnectionRecord> cr = connections.valueAt(conni); 379 for (int i=0; i<cr.size(); i++) { 380 if ((cr.get(i).flags&Context.BIND_AUTO_CREATE) != 0) { 381 return true; 382 } 383 } 384 } 385 return false; 386 } 387 388 public void resetRestartCounter() { 389 restartCount = 0; 390 restartDelay = 0; 391 restartTime = 0; 392 } 393 394 public StartItem findDeliveredStart(int id, boolean remove) { 395 final int N = deliveredStarts.size(); 396 for (int i=0; i<N; i++) { 397 StartItem si = deliveredStarts.get(i); 398 if (si.id == id) { 399 if (remove) deliveredStarts.remove(i); 400 return si; 401 } 402 } 403 404 return null; 405 } 406 407 public int getLastStartId() { 408 return lastStartId; 409 } 410 411 public int makeNextStartId() { 412 lastStartId++; 413 if (lastStartId < 1) { 414 lastStartId = 1; 415 } 416 return lastStartId; 417 } 418 419 public void postNotification() { 420 final int appUid = appInfo.uid; 421 final int appPid = app.pid; 422 if (foregroundId != 0 && foregroundNoti != null) { 423 // Do asynchronous communication with notification manager to 424 // avoid deadlocks. 425 final String localPackageName = packageName; 426 final int localForegroundId = foregroundId; 427 final Notification localForegroundNoti = foregroundNoti; 428 ams.mHandler.post(new Runnable() { 429 public void run() { 430 NotificationManagerService nm = 431 (NotificationManagerService) NotificationManager.getService(); 432 if (nm == null) { 433 return; 434 } 435 try { 436 if (localForegroundNoti.icon == 0) { 437 // It is not correct for the caller to supply a notification 438 // icon, but this used to be able to slip through, so for 439 // those dirty apps give it the app's icon. 440 localForegroundNoti.icon = appInfo.icon; 441 442 // Do not allow apps to present a sneaky invisible content view either. 443 localForegroundNoti.contentView = null; 444 localForegroundNoti.bigContentView = null; 445 CharSequence appName = appInfo.loadLabel( 446 ams.mContext.getPackageManager()); 447 if (appName == null) { 448 appName = appInfo.packageName; 449 } 450 Context ctx = null; 451 try { 452 ctx = ams.mContext.createPackageContext( 453 appInfo.packageName, 0); 454 Intent runningIntent = new Intent( 455 Settings.ACTION_APPLICATION_DETAILS_SETTINGS); 456 runningIntent.setData(Uri.fromParts("package", 457 appInfo.packageName, null)); 458 PendingIntent pi = PendingIntent.getActivity(ams.mContext, 0, 459 runningIntent, PendingIntent.FLAG_UPDATE_CURRENT); 460 localForegroundNoti.setLatestEventInfo(ctx, 461 ams.mContext.getString( 462 com.android.internal.R.string 463 .app_running_notification_title, 464 appName), 465 ams.mContext.getString( 466 com.android.internal.R.string 467 .app_running_notification_text, 468 appName), 469 pi); 470 } catch (PackageManager.NameNotFoundException e) { 471 localForegroundNoti.icon = 0; 472 } 473 } 474 if (localForegroundNoti.icon == 0) { 475 // Notifications whose icon is 0 are defined to not show 476 // a notification, silently ignoring it. We don't want to 477 // just ignore it, we want to prevent the service from 478 // being foreground. 479 throw new RuntimeException("icon must be non-zero"); 480 } 481 int[] outId = new int[1]; 482 nm.enqueueNotificationInternal(localPackageName, localPackageName, 483 appUid, appPid, null, localForegroundId, localForegroundNoti, 484 outId, userId); 485 } catch (RuntimeException e) { 486 Slog.w(ActivityManagerService.TAG, 487 "Error showing notification for service", e); 488 // If it gave us a garbage notification, it doesn't 489 // get to be foreground. 490 ams.setServiceForeground(name, ServiceRecord.this, 491 0, null, true); 492 ams.crashApplication(appUid, appPid, localPackageName, 493 "Bad notification for startForeground: " + e); 494 } 495 } 496 }); 497 } 498 } 499 500 public void cancelNotification() { 501 if (foregroundId != 0) { 502 // Do asynchronous communication with notification manager to 503 // avoid deadlocks. 504 final String localPackageName = packageName; 505 final int localForegroundId = foregroundId; 506 ams.mHandler.post(new Runnable() { 507 public void run() { 508 INotificationManager inm = NotificationManager.getService(); 509 if (inm == null) { 510 return; 511 } 512 try { 513 inm.cancelNotificationWithTag(localPackageName, null, 514 localForegroundId, userId); 515 } catch (RuntimeException e) { 516 Slog.w(ActivityManagerService.TAG, 517 "Error canceling notification for service", e); 518 } catch (RemoteException e) { 519 } 520 } 521 }); 522 } 523 } 524 525 public void clearDeliveredStartsLocked() { 526 for (int i=deliveredStarts.size()-1; i>=0; i--) { 527 deliveredStarts.get(i).removeUriPermissionsLocked(); 528 } 529 deliveredStarts.clear(); 530 } 531 532 public String toString() { 533 if (stringName != null) { 534 return stringName; 535 } 536 StringBuilder sb = new StringBuilder(128); 537 sb.append("ServiceRecord{") 538 .append(Integer.toHexString(System.identityHashCode(this))) 539 .append(" u").append(userId) 540 .append(' ').append(shortName).append('}'); 541 return stringName = sb.toString(); 542 } 543 } 544
