diff options
author | Dianne Hackborn <hackbod@google.com> | 2012-08-03 19:28:48 -0700 |
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committer | Dianne Hackborn <hackbod@google.com> | 2012-08-06 17:52:02 -0700 |
commit | 599db5c85faa5733af538a712b870e1f507cd380 (patch) | |
tree | 765a44d3a895e56c76968a5584a5c938982c9934 /services/java/com/android/server/am/ActiveServices.java | |
parent | 4cb3384772cf7015a4e05789470123efb07219d9 (diff) | |
download | frameworks_base-599db5c85faa5733af538a712b870e1f507cd380.zip frameworks_base-599db5c85faa5733af538a712b870e1f507cd380.tar.gz frameworks_base-599db5c85faa5733af538a712b870e1f507cd380.tar.bz2 |
Refactor Service code out of main ActivityManagerService class.
Change-Id: I83ade73b48e8fda1ad413634c1eb0dba2a545ca7
Diffstat (limited to 'services/java/com/android/server/am/ActiveServices.java')
-rw-r--r-- | services/java/com/android/server/am/ActiveServices.java | 2145 |
1 files changed, 2145 insertions, 0 deletions
diff --git a/services/java/com/android/server/am/ActiveServices.java b/services/java/com/android/server/am/ActiveServices.java new file mode 100644 index 0000000..fbbff4c --- /dev/null +++ b/services/java/com/android/server/am/ActiveServices.java @@ -0,0 +1,2145 @@ +/* + * Copyright (C) 2012 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.android.server.am; + +import java.io.FileDescriptor; +import java.io.IOException; +import java.io.PrintWriter; +import java.util.ArrayList; +import java.util.Collection; +import java.util.HashMap; +import java.util.HashSet; +import java.util.Iterator; +import java.util.List; + +import com.android.internal.os.BatteryStatsImpl; +import com.android.server.am.ActivityManagerService.ItemMatcher; +import com.android.server.am.ActivityManagerService.NeededUriGrants; + +import android.app.ActivityManager; +import android.app.AppGlobals; +import android.app.IApplicationThread; +import android.app.IServiceConnection; +import android.app.Notification; +import android.app.PendingIntent; +import android.app.Service; +import android.content.ComponentName; +import android.content.Context; +import android.content.Intent; +import android.content.pm.ApplicationInfo; +import android.content.pm.PackageManager; +import android.content.pm.ResolveInfo; +import android.content.pm.ServiceInfo; +import android.content.pm.UserInfo; +import android.os.Binder; +import android.os.IBinder; +import android.os.Message; +import android.os.Process; +import android.os.RemoteException; +import android.os.SystemClock; +import android.os.UserId; +import android.util.EventLog; +import android.util.Log; +import android.util.Slog; +import android.util.SparseArray; +import android.util.TimeUtils; + +public class ActiveServices { + static final boolean DEBUG_SERVICE = ActivityManagerService.DEBUG_SERVICE; + static final boolean DEBUG_SERVICE_EXECUTING = ActivityManagerService.DEBUG_SERVICE_EXECUTING; + static final boolean DEBUG_MU = ActivityManagerService.DEBUG_MU; + static final String TAG = ActivityManagerService.TAG; + static final String TAG_MU = ActivityManagerService.TAG_MU; + + // How long we wait for a service to finish executing. + static final int SERVICE_TIMEOUT = 20*1000; + + // How long a service needs to be running until restarting its process + // is no longer considered to be a relaunch of the service. + static final int SERVICE_RESTART_DURATION = 5*1000; + + // How long a service needs to be running until it will start back at + // SERVICE_RESTART_DURATION after being killed. + static final int SERVICE_RESET_RUN_DURATION = 60*1000; + + // Multiplying factor to increase restart duration time by, for each time + // a service is killed before it has run for SERVICE_RESET_RUN_DURATION. + static final int SERVICE_RESTART_DURATION_FACTOR = 4; + + // The minimum amount of time between restarting services that we allow. + // That is, when multiple services are restarting, we won't allow each + // to restart less than this amount of time from the last one. + static final int SERVICE_MIN_RESTART_TIME_BETWEEN = 10*1000; + + // Maximum amount of time for there to be no activity on a service before + // we consider it non-essential and allow its process to go on the + // LRU background list. + static final int MAX_SERVICE_INACTIVITY = 30*60*1000; + + final ActivityManagerService mAm; + + final ServiceMap mServiceMap = new ServiceMap(); + + /** + * All currently bound service connections. Keys are the IBinder of + * the client's IServiceConnection. + */ + final HashMap<IBinder, ArrayList<ConnectionRecord>> mServiceConnections + = new HashMap<IBinder, ArrayList<ConnectionRecord>>(); + + /** + * List of services that we have been asked to start, + * but haven't yet been able to. It is used to hold start requests + * while waiting for their corresponding application thread to get + * going. + */ + final ArrayList<ServiceRecord> mPendingServices + = new ArrayList<ServiceRecord>(); + + /** + * List of services that are scheduled to restart following a crash. + */ + final ArrayList<ServiceRecord> mRestartingServices + = new ArrayList<ServiceRecord>(); + + /** + * List of services that are in the process of being stopped. + */ + final ArrayList<ServiceRecord> mStoppingServices + = new ArrayList<ServiceRecord>(); + + static class ServiceMap { + + private final SparseArray<HashMap<ComponentName, ServiceRecord>> mServicesByNamePerUser + = new SparseArray<HashMap<ComponentName, ServiceRecord>>(); + private final SparseArray<HashMap<Intent.FilterComparison, ServiceRecord>> + mServicesByIntentPerUser = new SparseArray< + HashMap<Intent.FilterComparison, ServiceRecord>>(); + + ServiceRecord getServiceByName(ComponentName name, int callingUser) { + // TODO: Deal with global services + if (DEBUG_MU) + Slog.v(TAG_MU, "getServiceByName(" + name + "), callingUser = " + callingUser); + return getServices(callingUser).get(name); + } + + ServiceRecord getServiceByName(ComponentName name) { + return getServiceByName(name, -1); + } + + ServiceRecord getServiceByIntent(Intent.FilterComparison filter, int callingUser) { + // TODO: Deal with global services + if (DEBUG_MU) + Slog.v(TAG_MU, "getServiceByIntent(" + filter + "), callingUser = " + callingUser); + return getServicesByIntent(callingUser).get(filter); + } + + ServiceRecord getServiceByIntent(Intent.FilterComparison filter) { + return getServiceByIntent(filter, -1); + } + + void putServiceByName(ComponentName name, int callingUser, ServiceRecord value) { + // TODO: Deal with global services + getServices(callingUser).put(name, value); + } + + void putServiceByIntent(Intent.FilterComparison filter, int callingUser, + ServiceRecord value) { + // TODO: Deal with global services + getServicesByIntent(callingUser).put(filter, value); + } + + void removeServiceByName(ComponentName name, int callingUser) { + // TODO: Deal with global services + ServiceRecord removed = getServices(callingUser).remove(name); + if (DEBUG_MU) + Slog.v(TAG, "removeServiceByName user=" + callingUser + " name=" + name + + " removed=" + removed); + } + + void removeServiceByIntent(Intent.FilterComparison filter, int callingUser) { + // TODO: Deal with global services + ServiceRecord removed = getServicesByIntent(callingUser).remove(filter); + if (DEBUG_MU) + Slog.v(TAG_MU, "removeServiceByIntent user=" + callingUser + " intent=" + filter + + " removed=" + removed); + } + + Collection<ServiceRecord> getAllServices(int callingUser) { + // TODO: Deal with global services + return getServices(callingUser).values(); + } + + private HashMap<ComponentName, ServiceRecord> getServices(int callingUser) { + HashMap map = mServicesByNamePerUser.get(callingUser); + if (map == null) { + map = new HashMap<ComponentName, ServiceRecord>(); + mServicesByNamePerUser.put(callingUser, map); + } + return map; + } + + private HashMap<Intent.FilterComparison, ServiceRecord> getServicesByIntent( + int callingUser) { + HashMap map = mServicesByIntentPerUser.get(callingUser); + if (map == null) { + map = new HashMap<Intent.FilterComparison, ServiceRecord>(); + mServicesByIntentPerUser.put(callingUser, map); + } + return map; + } + } + + public ActiveServices(ActivityManagerService service) { + mAm = service; + } + + ComponentName startServiceLocked(IApplicationThread caller, + Intent service, String resolvedType, + int callingPid, int callingUid) { + if (DEBUG_SERVICE) Slog.v(TAG, "startService: " + service + + " type=" + resolvedType + " args=" + service.getExtras()); + + if (caller != null) { + final ProcessRecord callerApp = mAm.getRecordForAppLocked(caller); + if (callerApp == null) { + throw new SecurityException( + "Unable to find app for caller " + caller + + " (pid=" + Binder.getCallingPid() + + ") when starting service " + service); + } + } + + ServiceLookupResult res = + retrieveServiceLocked(service, resolvedType, + callingPid, callingUid, UserId.getUserId(callingUid)); + if (res == null) { + return null; + } + if (res.record == null) { + return new ComponentName("!", res.permission != null + ? res.permission : "private to package"); + } + ServiceRecord r = res.record; + NeededUriGrants neededGrants = mAm.checkGrantUriPermissionFromIntentLocked( + callingUid, r.packageName, service, service.getFlags(), null); + if (unscheduleServiceRestartLocked(r)) { + if (DEBUG_SERVICE) Slog.v(TAG, "START SERVICE WHILE RESTART PENDING: " + r); + } + r.startRequested = true; + r.callStart = false; + r.pendingStarts.add(new ServiceRecord.StartItem(r, false, r.makeNextStartId(), + service, neededGrants)); + r.lastActivity = SystemClock.uptimeMillis(); + synchronized (r.stats.getBatteryStats()) { + r.stats.startRunningLocked(); + } + if (!bringUpServiceLocked(r, service.getFlags(), false)) { + return new ComponentName("!", "Service process is bad"); + } + return r.name; + } + + private void stopServiceLocked(ServiceRecord service) { + synchronized (service.stats.getBatteryStats()) { + service.stats.stopRunningLocked(); + } + service.startRequested = false; + service.callStart = false; + bringDownServiceLocked(service, false); + } + + int stopServiceLocked(IApplicationThread caller, Intent service, + String resolvedType) { + if (DEBUG_SERVICE) Slog.v(TAG, "stopService: " + service + + " type=" + resolvedType); + + final ProcessRecord callerApp = mAm.getRecordForAppLocked(caller); + if (caller != null && callerApp == null) { + throw new SecurityException( + "Unable to find app for caller " + caller + + " (pid=" + Binder.getCallingPid() + + ") when stopping service " + service); + } + + // If this service is active, make sure it is stopped. + ServiceLookupResult r = findServiceLocked(service, resolvedType, + callerApp == null ? UserId.getCallingUserId() : callerApp.userId); + if (r != null) { + if (r.record != null) { + final long origId = Binder.clearCallingIdentity(); + try { + stopServiceLocked(r.record); + } finally { + Binder.restoreCallingIdentity(origId); + } + return 1; + } + return -1; + } + + return 0; + } + + IBinder peekServiceLocked(Intent service, String resolvedType) { + ServiceLookupResult r = findServiceLocked(service, resolvedType, + UserId.getCallingUserId()); + + IBinder ret = null; + if (r != null) { + // r.record is null if findServiceLocked() failed the caller permission check + if (r.record == null) { + throw new SecurityException( + "Permission Denial: Accessing service " + r.record.name + + " from pid=" + Binder.getCallingPid() + + ", uid=" + Binder.getCallingUid() + + " requires " + r.permission); + } + IntentBindRecord ib = r.record.bindings.get(r.record.intent); + if (ib != null) { + ret = ib.binder; + } + } + + return ret; + } + + boolean stopServiceTokenLocked(ComponentName className, IBinder token, + int startId) { + if (DEBUG_SERVICE) Slog.v(TAG, "stopServiceToken: " + className + + " " + token + " startId=" + startId); + ServiceRecord r = findServiceLocked(className, token); + if (r != null) { + if (startId >= 0) { + // Asked to only stop if done with all work. Note that + // to avoid leaks, we will take this as dropping all + // start items up to and including this one. + ServiceRecord.StartItem si = r.findDeliveredStart(startId, false); + if (si != null) { + while (r.deliveredStarts.size() > 0) { + ServiceRecord.StartItem cur = r.deliveredStarts.remove(0); + cur.removeUriPermissionsLocked(); + if (cur == si) { + break; + } + } + } + + if (r.getLastStartId() != startId) { + return false; + } + + if (r.deliveredStarts.size() > 0) { + Slog.w(TAG, "stopServiceToken startId " + startId + + " is last, but have " + r.deliveredStarts.size() + + " remaining args"); + } + } + + synchronized (r.stats.getBatteryStats()) { + r.stats.stopRunningLocked(); + r.startRequested = false; + r.callStart = false; + } + final long origId = Binder.clearCallingIdentity(); + bringDownServiceLocked(r, false); + Binder.restoreCallingIdentity(origId); + return true; + } + return false; + } + + public void setServiceForegroundLocked(ComponentName className, IBinder token, + int id, Notification notification, boolean removeNotification) { + final long origId = Binder.clearCallingIdentity(); + try { + ServiceRecord r = findServiceLocked(className, token); + if (r != null) { + if (id != 0) { + if (notification == null) { + throw new IllegalArgumentException("null notification"); + } + if (r.foregroundId != id) { + r.cancelNotification(); + r.foregroundId = id; + } + notification.flags |= Notification.FLAG_FOREGROUND_SERVICE; + r.foregroundNoti = notification; + r.isForeground = true; + r.postNotification(); + if (r.app != null) { + updateServiceForegroundLocked(r.app, true); + } + } else { + if (r.isForeground) { + r.isForeground = false; + if (r.app != null) { + mAm.updateLruProcessLocked(r.app, false, true); + updateServiceForegroundLocked(r.app, true); + } + } + if (removeNotification) { + r.cancelNotification(); + r.foregroundId = 0; + r.foregroundNoti = null; + } + } + } + } finally { + Binder.restoreCallingIdentity(origId); + } + } + + private void updateServiceForegroundLocked(ProcessRecord proc, boolean oomAdj) { + boolean anyForeground = false; + for (ServiceRecord sr : proc.services) { + if (sr.isForeground) { + anyForeground = true; + break; + } + } + if (anyForeground != proc.foregroundServices) { + proc.foregroundServices = anyForeground; + if (oomAdj) { + mAm.updateOomAdjLocked(); + } + } + } + + int bindServiceLocked(IApplicationThread caller, IBinder token, + Intent service, String resolvedType, + IServiceConnection connection, int flags, int userId) { + if (DEBUG_SERVICE) Slog.v(TAG, "bindService: " + service + + " type=" + resolvedType + " conn=" + connection.asBinder() + + " flags=0x" + Integer.toHexString(flags)); + if (DEBUG_MU) + Slog.i(TAG_MU, "bindService uid=" + Binder.getCallingUid() + " origUid=" + + Binder.getOrigCallingUid()); + final ProcessRecord callerApp = mAm.getRecordForAppLocked(caller); + if (callerApp == null) { + throw new SecurityException( + "Unable to find app for caller " + caller + + " (pid=" + Binder.getCallingPid() + + ") when binding service " + service); + } + + ActivityRecord activity = null; + if (token != null) { + activity = mAm.mMainStack.isInStackLocked(token); + if (activity == null) { + Slog.w(TAG, "Binding with unknown activity: " + token); + return 0; + } + } + + int clientLabel = 0; + PendingIntent clientIntent = null; + + if (callerApp.info.uid == Process.SYSTEM_UID) { + // Hacky kind of thing -- allow system stuff to tell us + // what they are, so we can report this elsewhere for + // others to know why certain services are running. + try { + clientIntent = (PendingIntent)service.getParcelableExtra( + Intent.EXTRA_CLIENT_INTENT); + } catch (RuntimeException e) { + } + if (clientIntent != null) { + clientLabel = service.getIntExtra(Intent.EXTRA_CLIENT_LABEL, 0); + if (clientLabel != 0) { + // There are no useful extras in the intent, trash them. + // System code calling with this stuff just needs to know + // this will happen. + service = service.cloneFilter(); + } + } + } + + ServiceLookupResult res = + retrieveServiceLocked(service, resolvedType, + Binder.getCallingPid(), Binder.getCallingUid(), userId); + if (res == null) { + return 0; + } + if (res.record == null) { + return -1; + } + if (mAm.isSingleton(res.record.processName, res.record.appInfo)) { + userId = 0; + res = retrieveServiceLocked(service, resolvedType, Binder.getCallingPid(), + Binder.getCallingUid(), 0); + } + ServiceRecord s = res.record; + + final long origId = Binder.clearCallingIdentity(); + + try { + if (unscheduleServiceRestartLocked(s)) { + if (DEBUG_SERVICE) Slog.v(TAG, "BIND SERVICE WHILE RESTART PENDING: " + + s); + } + + AppBindRecord b = s.retrieveAppBindingLocked(service, callerApp); + ConnectionRecord c = new ConnectionRecord(b, activity, + connection, flags, clientLabel, clientIntent); + + IBinder binder = connection.asBinder(); + ArrayList<ConnectionRecord> clist = s.connections.get(binder); + if (clist == null) { + clist = new ArrayList<ConnectionRecord>(); + s.connections.put(binder, clist); + } + clist.add(c); + b.connections.add(c); + if (activity != null) { + if (activity.connections == null) { + activity.connections = new HashSet<ConnectionRecord>(); + } + activity.connections.add(c); + } + b.client.connections.add(c); + if ((c.flags&Context.BIND_ABOVE_CLIENT) != 0) { + b.client.hasAboveClient = true; + } + clist = mServiceConnections.get(binder); + if (clist == null) { + clist = new ArrayList<ConnectionRecord>(); + mServiceConnections.put(binder, clist); + } + clist.add(c); + + if ((flags&Context.BIND_AUTO_CREATE) != 0) { + s.lastActivity = SystemClock.uptimeMillis(); + if (!bringUpServiceLocked(s, service.getFlags(), false)) { + return 0; + } + } + + if (s.app != null) { + // This could have made the service more important. + mAm.updateOomAdjLocked(s.app); + } + + if (DEBUG_SERVICE) Slog.v(TAG, "Bind " + s + " with " + b + + ": received=" + b.intent.received + + " apps=" + b.intent.apps.size() + + " doRebind=" + b.intent.doRebind); + + if (s.app != null && b.intent.received) { + // Service is already running, so we can immediately + // publish the connection. + try { + c.conn.connected(s.name, b.intent.binder); + } catch (Exception e) { + Slog.w(TAG, "Failure sending service " + s.shortName + + " to connection " + c.conn.asBinder() + + " (in " + c.binding.client.processName + ")", e); + } + + // If this is the first app connected back to this binding, + // and the service had previously asked to be told when + // rebound, then do so. + if (b.intent.apps.size() == 1 && b.intent.doRebind) { + requestServiceBindingLocked(s, b.intent, true); + } + } else if (!b.intent.requested) { + requestServiceBindingLocked(s, b.intent, false); + } + } finally { + Binder.restoreCallingIdentity(origId); + } + + return 1; + } + + void publishServiceLocked(ServiceRecord r, Intent intent, IBinder service) { + final long origId = Binder.clearCallingIdentity(); + try { + if (DEBUG_SERVICE) Slog.v(TAG, "PUBLISHING " + r + + " " + intent + ": " + service); + if (r != null) { + Intent.FilterComparison filter + = new Intent.FilterComparison(intent); + IntentBindRecord b = r.bindings.get(filter); + if (b != null && !b.received) { + b.binder = service; + b.requested = true; + b.received = true; + if (r.connections.size() > 0) { + Iterator<ArrayList<ConnectionRecord>> it + = r.connections.values().iterator(); + while (it.hasNext()) { + ArrayList<ConnectionRecord> clist = it.next(); + for (int i=0; i<clist.size(); i++) { + ConnectionRecord c = clist.get(i); + if (!filter.equals(c.binding.intent.intent)) { + if (DEBUG_SERVICE) Slog.v( + TAG, "Not publishing to: " + c); + if (DEBUG_SERVICE) Slog.v( + TAG, "Bound intent: " + c.binding.intent.intent); + if (DEBUG_SERVICE) Slog.v( + TAG, "Published intent: " + intent); + continue; + } + if (DEBUG_SERVICE) Slog.v(TAG, "Publishing to: " + c); + try { + c.conn.connected(r.name, service); + } catch (Exception e) { + Slog.w(TAG, "Failure sending service " + r.name + + " to connection " + c.conn.asBinder() + + " (in " + c.binding.client.processName + ")", e); + } + } + } + } + } + + serviceDoneExecutingLocked(r, mStoppingServices.contains(r)); + } + } finally { + Binder.restoreCallingIdentity(origId); + } + } + + boolean unbindServiceLocked(IServiceConnection connection) { + IBinder binder = connection.asBinder(); + if (DEBUG_SERVICE) Slog.v(TAG, "unbindService: conn=" + binder); + ArrayList<ConnectionRecord> clist = mServiceConnections.get(binder); + if (clist == null) { + Slog.w(TAG, "Unbind failed: could not find connection for " + + connection.asBinder()); + return false; + } + + final long origId = Binder.clearCallingIdentity(); + try { + while (clist.size() > 0) { + ConnectionRecord r = clist.get(0); + removeConnectionLocked(r, null, null); + + if (r.binding.service.app != null) { + // This could have made the service less important. + mAm.updateOomAdjLocked(r.binding.service.app); + } + } + } finally { + Binder.restoreCallingIdentity(origId); + } + + return true; + } + + void unbindFinishedLocked(ServiceRecord r, Intent intent, boolean doRebind) { + final long origId = Binder.clearCallingIdentity(); + try { + if (r != null) { + Intent.FilterComparison filter + = new Intent.FilterComparison(intent); + IntentBindRecord b = r.bindings.get(filter); + if (DEBUG_SERVICE) Slog.v(TAG, "unbindFinished in " + r + + " at " + b + ": apps=" + + (b != null ? b.apps.size() : 0)); + + boolean inStopping = mStoppingServices.contains(r); + if (b != null) { + if (b.apps.size() > 0 && !inStopping) { + // Applications have already bound since the last + // unbind, so just rebind right here. + requestServiceBindingLocked(r, b, true); + } else { + // Note to tell the service the next time there is + // a new client. + b.doRebind = true; + } + } + + serviceDoneExecutingLocked(r, inStopping); + } + } finally { + Binder.restoreCallingIdentity(origId); + } + } + + private final ServiceRecord findServiceLocked(ComponentName name, + IBinder token) { + ServiceRecord r = mServiceMap.getServiceByName(name, Binder.getOrigCallingUser()); + return r == token ? r : null; + } + + private final class ServiceLookupResult { + final ServiceRecord record; + final String permission; + + ServiceLookupResult(ServiceRecord _record, String _permission) { + record = _record; + permission = _permission; + } + }; + + private ServiceLookupResult findServiceLocked(Intent service, + String resolvedType, int userId) { + ServiceRecord r = null; + if (service.getComponent() != null) { + r = mServiceMap.getServiceByName(service.getComponent(), userId); + } + if (r == null) { + Intent.FilterComparison filter = new Intent.FilterComparison(service); + r = mServiceMap.getServiceByIntent(filter, userId); + } + + if (r == null) { + try { + ResolveInfo rInfo = + AppGlobals.getPackageManager().resolveService( + service, resolvedType, 0, userId); + ServiceInfo sInfo = + rInfo != null ? rInfo.serviceInfo : null; + if (sInfo == null) { + return null; + } + + ComponentName name = new ComponentName( + sInfo.applicationInfo.packageName, sInfo.name); + r = mServiceMap.getServiceByName(name, Binder.getOrigCallingUser()); + } catch (RemoteException ex) { + // pm is in same process, this will never happen. + } + } + if (r != null) { + int callingPid = Binder.getCallingPid(); + int callingUid = Binder.getCallingUid(); + if (mAm.checkComponentPermission(r.permission, + callingPid, callingUid, r.appInfo.uid, r.exported) + != PackageManager.PERMISSION_GRANTED) { + if (!r.exported) { + Slog.w(TAG, "Permission Denial: Accessing service " + r.name + + " from pid=" + callingPid + + ", uid=" + callingUid + + " that is not exported from uid " + r.appInfo.uid); + return new ServiceLookupResult(null, "not exported from uid " + + r.appInfo.uid); + } + Slog.w(TAG, "Permission Denial: Accessing service " + r.name + + " from pid=" + callingPid + + ", uid=" + callingUid + + " requires " + r.permission); + return new ServiceLookupResult(null, r.permission); + } + return new ServiceLookupResult(r, null); + } + return null; + } + + private class ServiceRestarter implements Runnable { + private ServiceRecord mService; + + void setService(ServiceRecord service) { + mService = service; + } + + public void run() { + synchronized(mAm) { + performServiceRestartLocked(mService); + } + } + } + + private ServiceLookupResult retrieveServiceLocked(Intent service, + String resolvedType, int callingPid, int callingUid, int userId) { + ServiceRecord r = null; + if (DEBUG_SERVICE) Slog.v(TAG, "retrieveServiceLocked: " + service + + " type=" + resolvedType + " callingUid=" + callingUid); + + if (service.getComponent() != null) { + r = mServiceMap.getServiceByName(service.getComponent(), userId); + } + if (r == null) { + Intent.FilterComparison filter = new Intent.FilterComparison(service); + r = mServiceMap.getServiceByIntent(filter, userId); + } + if (r == null) { + try { + ResolveInfo rInfo = + AppGlobals.getPackageManager().resolveService( + service, resolvedType, + ActivityManagerService.STOCK_PM_FLAGS, userId); + ServiceInfo sInfo = + rInfo != null ? rInfo.serviceInfo : null; + if (sInfo == null) { + Slog.w(TAG, "Unable to start service " + service + + ": not found"); + return null; + } + ComponentName name = new ComponentName( + sInfo.applicationInfo.packageName, sInfo.name); + if (userId > 0) { + if (mAm.isSingleton(sInfo.processName, sInfo.applicationInfo) + || (sInfo.flags&ServiceInfo.FLAG_SINGLE_USER) != 0) { + userId = 0; + } else if ((sInfo.flags&ServiceInfo.FLAG_SINGLE_USER) != 0) { + if (mAm.checkComponentPermission( + android.Manifest.permission.INTERACT_ACROSS_USERS, + callingPid, callingUid, -1, true) + == PackageManager.PERMISSION_GRANTED) { + userId = 0; + } else { + String msg = "Permission Denial: Service " + name + + " requests FLAG_SINGLE_USER, but app does not hold " + + android.Manifest.permission.INTERACT_ACROSS_USERS; + Slog.w(TAG, msg); + throw new SecurityException(msg); + } + } + sInfo = new ServiceInfo(sInfo); + sInfo.applicationInfo = mAm.getAppInfoForUser(sInfo.applicationInfo, userId); + } + r = mServiceMap.getServiceByName(name, userId); + if (r == null) { + Intent.FilterComparison filter = new Intent.FilterComparison( + service.cloneFilter()); + ServiceRestarter res = new ServiceRestarter(); + BatteryStatsImpl.Uid.Pkg.Serv ss = null; + BatteryStatsImpl stats = mAm.mBatteryStatsService.getActiveStatistics(); + synchronized (stats) { + ss = stats.getServiceStatsLocked( + sInfo.applicationInfo.uid, sInfo.packageName, + sInfo.name); + } + r = new ServiceRecord(mAm, ss, name, filter, sInfo, res); + res.setService(r); + mServiceMap.putServiceByName(name, UserId.getUserId(r.appInfo.uid), r); + mServiceMap.putServiceByIntent(filter, UserId.getUserId(r.appInfo.uid), r); + + // Make sure this component isn't in the pending list. + int N = mPendingServices.size(); + for (int i=0; i<N; i++) { + ServiceRecord pr = mPendingServices.get(i); + if (pr.name.equals(name)) { + mPendingServices.remove(i); + i--; + N--; + } + } + } + } catch (RemoteException ex) { + // pm is in same process, this will never happen. + } + } + if (r != null) { + if (mAm.checkComponentPermission(r.permission, + callingPid, callingUid, r.appInfo.uid, r.exported) + != PackageManager.PERMISSION_GRANTED) { + if (!r.exported) { + Slog.w(TAG, "Permission Denial: Accessing service " + r.name + + " from pid=" + callingPid + + ", uid=" + callingUid + + " that is not exported from uid " + r.appInfo.uid); + return new ServiceLookupResult(null, "not exported from uid " + + r.appInfo.uid); + } + Slog.w(TAG, "Permission Denial: Accessing service " + r.name + + " from pid=" + callingPid + + ", uid=" + callingUid + + " requires " + r.permission); + return new ServiceLookupResult(null, r.permission); + } + return new ServiceLookupResult(r, null); + } + return null; + } + + private final void bumpServiceExecutingLocked(ServiceRecord r, String why) { + if (DEBUG_SERVICE) Log.v(TAG, ">>> EXECUTING " + + why + " of " + r + " in app " + r.app); + else if (DEBUG_SERVICE_EXECUTING) Log.v(TAG, ">>> EXECUTING " + + why + " of " + r.shortName); + long now = SystemClock.uptimeMillis(); + if (r.executeNesting == 0 && r.app != null) { + if (r.app.executingServices.size() == 0) { + Message msg = mAm.mHandler.obtainMessage( + ActivityManagerService.SERVICE_TIMEOUT_MSG); + msg.obj = r.app; + mAm.mHandler.sendMessageAtTime(msg, now+SERVICE_TIMEOUT); + } + r.app.executingServices.add(r); + } + r.executeNesting++; + r.executingStart = now; + } + + private final boolean requestServiceBindingLocked(ServiceRecord r, + IntentBindRecord i, boolean rebind) { + if (r.app == null || r.app.thread == null) { + // If service is not currently running, can't yet bind. + return false; + } + if ((!i.requested || rebind) && i.apps.size() > 0) { + try { + bumpServiceExecutingLocked(r, "bind"); + r.app.thread.scheduleBindService(r, i.intent.getIntent(), rebind); + if (!rebind) { + i.requested = true; + } + i.hasBound = true; + i.doRebind = false; + } catch (RemoteException e) { + if (DEBUG_SERVICE) Slog.v(TAG, "Crashed while binding " + r); + return false; + } + } + return true; + } + + private final boolean scheduleServiceRestartLocked(ServiceRecord r, + boolean allowCancel) { + boolean canceled = false; + + final long now = SystemClock.uptimeMillis(); + long minDuration = SERVICE_RESTART_DURATION; + long resetTime = SERVICE_RESET_RUN_DURATION; + + if ((r.serviceInfo.applicationInfo.flags + &ApplicationInfo.FLAG_PERSISTENT) != 0) { + minDuration /= 4; + } + + // Any delivered but not yet finished starts should be put back + // on the pending list. + final int N = r.deliveredStarts.size(); + if (N > 0) { + for (int i=N-1; i>=0; i--) { + ServiceRecord.StartItem si = r.deliveredStarts.get(i); + si.removeUriPermissionsLocked(); + if (si.intent == null) { + // We'll generate this again if needed. + } else if (!allowCancel || (si.deliveryCount < ServiceRecord.MAX_DELIVERY_COUNT + && si.doneExecutingCount < ServiceRecord.MAX_DONE_EXECUTING_COUNT)) { + r.pendingStarts.add(0, si); + long dur = SystemClock.uptimeMillis() - si.deliveredTime; + dur *= 2; + if (minDuration < dur) minDuration = dur; + if (resetTime < dur) resetTime = dur; + } else { + Slog.w(TAG, "Canceling start item " + si.intent + " in service " + + r.name); + canceled = true; + } + } + r.deliveredStarts.clear(); + } + + r.totalRestartCount++; + if (r.restartDelay == 0) { + r.restartCount++; + r.restartDelay = minDuration; + } else { + // If it has been a "reasonably long time" since the service + // was started, then reset our restart duration back to + // the beginning, so we don't infinitely increase the duration + // on a service that just occasionally gets killed (which is + // a normal case, due to process being killed to reclaim memory). + if (now > (r.restartTime+resetTime)) { + r.restartCount = 1; + r.restartDelay = minDuration; + } else { + if ((r.serviceInfo.applicationInfo.flags + &ApplicationInfo.FLAG_PERSISTENT) != 0) { + // Services in peristent processes will restart much more + // quickly, since they are pretty important. (Think SystemUI). + r.restartDelay += minDuration/2; + } else { + r.restartDelay *= SERVICE_RESTART_DURATION_FACTOR; + if (r.restartDelay < minDuration) { + r.restartDelay = minDuration; + } + } + } + } + + r.nextRestartTime = now + r.restartDelay; + + // Make sure that we don't end up restarting a bunch of services + // all at the same time. + boolean repeat; + do { + repeat = false; + for (int i=mRestartingServices.size()-1; i>=0; i--) { + ServiceRecord r2 = mRestartingServices.get(i); + if (r2 != r && r.nextRestartTime + >= (r2.nextRestartTime-SERVICE_MIN_RESTART_TIME_BETWEEN) + && r.nextRestartTime + < (r2.nextRestartTime+SERVICE_MIN_RESTART_TIME_BETWEEN)) { + r.nextRestartTime = r2.nextRestartTime + SERVICE_MIN_RESTART_TIME_BETWEEN; + r.restartDelay = r.nextRestartTime - now; + repeat = true; + break; + } + } + } while (repeat); + + if (!mRestartingServices.contains(r)) { + mRestartingServices.add(r); + } + + r.cancelNotification(); + + mAm.mHandler.removeCallbacks(r.restarter); + mAm.mHandler.postAtTime(r.restarter, r.nextRestartTime); + r.nextRestartTime = SystemClock.uptimeMillis() + r.restartDelay; + Slog.w(TAG, "Scheduling restart of crashed service " + + r.shortName + " in " + r.restartDelay + "ms"); + EventLog.writeEvent(EventLogTags.AM_SCHEDULE_SERVICE_RESTART, + r.shortName, r.restartDelay); + + return canceled; + } + + final void performServiceRestartLocked(ServiceRecord r) { + if (!mRestartingServices.contains(r)) { + return; + } + bringUpServiceLocked(r, r.intent.getIntent().getFlags(), true); + } + + private final boolean unscheduleServiceRestartLocked(ServiceRecord r) { + if (r.restartDelay == 0) { + return false; + } + r.resetRestartCounter(); + mRestartingServices.remove(r); + mAm.mHandler.removeCallbacks(r.restarter); + return true; + } + + private final boolean bringUpServiceLocked(ServiceRecord r, + int intentFlags, boolean whileRestarting) { + //Slog.i(TAG, "Bring up service:"); + //r.dump(" "); + + if (r.app != null && r.app.thread != null) { + sendServiceArgsLocked(r, false); + return true; + } + + if (!whileRestarting && r.restartDelay > 0) { + // If waiting for a restart, then do nothing. + return true; + } + + if (DEBUG_SERVICE) Slog.v(TAG, "Bringing up " + r + " " + r.intent); + + // We are now bringing the service up, so no longer in the + // restarting state. + mRestartingServices.remove(r); + + // Service is now being launched, its package can't be stopped. + try { + AppGlobals.getPackageManager().setPackageStoppedState( + r.packageName, false, r.userId); + } catch (RemoteException e) { + } catch (IllegalArgumentException e) { + Slog.w(TAG, "Failed trying to unstop package " + + r.packageName + ": " + e); + } + + final boolean isolated = (r.serviceInfo.flags&ServiceInfo.FLAG_ISOLATED_PROCESS) != 0; + final String procName = r.processName; + ProcessRecord app; + + if (!isolated) { + app = mAm.getProcessRecordLocked(procName, r.appInfo.uid); + if (DEBUG_MU) + Slog.v(TAG_MU, "bringUpServiceLocked: appInfo.uid=" + r.appInfo.uid + " app=" + app); + if (app != null && app.thread != null) { + try { + app.addPackage(r.appInfo.packageName); + realStartServiceLocked(r, app); + return true; + } catch (RemoteException e) { + Slog.w(TAG, "Exception when starting service " + r.shortName, e); + } + + // If a dead object exception was thrown -- fall through to + // restart the application. + } + } else { + // If this service runs in an isolated process, then each time + // we call startProcessLocked() we will get a new isolated + // process, starting another process if we are currently waiting + // for a previous process to come up. To deal with this, we store + // in the service any current isolated process it is running in or + // waiting to have come up. + app = r.isolatedProc; + } + + // Not running -- get it started, and enqueue this service record + // to be executed when the app comes up. + if (app == null) { + if ((app=mAm.startProcessLocked(procName, r.appInfo, true, intentFlags, + "service", r.name, false, isolated)) == null) { + Slog.w(TAG, "Unable to launch app " + + r.appInfo.packageName + "/" + + r.appInfo.uid + " for service " + + r.intent.getIntent() + ": process is bad"); + bringDownServiceLocked(r, true); + return false; + } + if (isolated) { + r.isolatedProc = app; + } + } + + if (!mPendingServices.contains(r)) { + mPendingServices.add(r); + } + + return true; + } + + private final void requestServiceBindingsLocked(ServiceRecord r) { + Iterator<IntentBindRecord> bindings = r.bindings.values().iterator(); + while (bindings.hasNext()) { + IntentBindRecord i = bindings.next(); + if (!requestServiceBindingLocked(r, i, false)) { + break; + } + } + } + + private final void realStartServiceLocked(ServiceRecord r, + ProcessRecord app) throws RemoteException { + if (app.thread == null) { + throw new RemoteException(); + } + if (DEBUG_MU) + Slog.v(TAG_MU, "realStartServiceLocked, ServiceRecord.uid = " + r.appInfo.uid + + ", ProcessRecord.uid = " + app.uid); + r.app = app; + r.restartTime = r.lastActivity = SystemClock.uptimeMillis(); + + app.services.add(r); + bumpServiceExecutingLocked(r, "create"); + mAm.updateLruProcessLocked(app, true, true); + + boolean created = false; + try { + mAm.mStringBuilder.setLength(0); + r.intent.getIntent().toShortString(mAm.mStringBuilder, true, false, true, false); + EventLog.writeEvent(EventLogTags.AM_CREATE_SERVICE, + System.identityHashCode(r), r.shortName, + mAm.mStringBuilder.toString(), r.app.pid); + synchronized (r.stats.getBatteryStats()) { + r.stats.startLaunchedLocked(); + } + mAm.ensurePackageDexOpt(r.serviceInfo.packageName); + app.thread.scheduleCreateService(r, r.serviceInfo, + mAm.compatibilityInfoForPackageLocked(r.serviceInfo.applicationInfo)); + r.postNotification(); + created = true; + } finally { + if (!created) { + app.services.remove(r); + scheduleServiceRestartLocked(r, false); + } + } + + requestServiceBindingsLocked(r); + + // If the service is in the started state, and there are no + // pending arguments, then fake up one so its onStartCommand() will + // be called. + if (r.startRequested && r.callStart && r.pendingStarts.size() == 0) { + r.pendingStarts.add(new ServiceRecord.StartItem(r, false, r.makeNextStartId(), + null, null)); + } + + sendServiceArgsLocked(r, true); + } + + private final void sendServiceArgsLocked(ServiceRecord r, + boolean oomAdjusted) { + final int N = r.pendingStarts.size(); + if (N == 0) { + return; + } + + while (r.pendingStarts.size() > 0) { + try { + ServiceRecord.StartItem si = r.pendingStarts.remove(0); + if (DEBUG_SERVICE) Slog.v(TAG, "Sending arguments to: " + + r + " " + r.intent + " args=" + si.intent); + if (si.intent == null && N > 1) { + // If somehow we got a dummy null intent in the middle, + // then skip it. DO NOT skip a null intent when it is + // the only one in the list -- this is to support the + // onStartCommand(null) case. + continue; + } + si.deliveredTime = SystemClock.uptimeMillis(); + r.deliveredStarts.add(si); + si.deliveryCount++; + if (si.neededGrants != null) { + mAm.grantUriPermissionUncheckedFromIntentLocked(si.neededGrants, + si.getUriPermissionsLocked()); + } + bumpServiceExecutingLocked(r, "start"); + if (!oomAdjusted) { + oomAdjusted = true; + mAm.updateOomAdjLocked(r.app); + } + int flags = 0; + if (si.deliveryCount > 1) { + flags |= Service.START_FLAG_RETRY; + } + if (si.doneExecutingCount > 0) { + flags |= Service.START_FLAG_REDELIVERY; + } + r.app.thread.scheduleServiceArgs(r, si.taskRemoved, si.id, flags, si.intent); + } catch (RemoteException e) { + // Remote process gone... we'll let the normal cleanup take + // care of this. + if (DEBUG_SERVICE) Slog.v(TAG, "Crashed while scheduling start: " + r); + break; + } catch (Exception e) { + Slog.w(TAG, "Unexpected exception", e); + break; + } + } + } + + private final void bringDownServiceLocked(ServiceRecord r, boolean force) { + //Slog.i(TAG, "Bring down service:"); + //r.dump(" "); + + // Does it still need to run? + if (!force && r.startRequested) { + return; + } + if (r.connections.size() > 0) { + if (!force) { + // XXX should probably keep a count of the number of auto-create + // connections directly in the service. + Iterator<ArrayList<ConnectionRecord>> it = r.connections.values().iterator(); + while (it.hasNext()) { + ArrayList<ConnectionRecord> cr = it.next(); + for (int i=0; i<cr.size(); i++) { + if ((cr.get(i).flags&Context.BIND_AUTO_CREATE) != 0) { + return; + } + } + } + } + + // Report to all of the connections that the service is no longer + // available. + Iterator<ArrayList<ConnectionRecord>> it = r.connections.values().iterator(); + while (it.hasNext()) { + ArrayList<ConnectionRecord> c = it.next(); + for (int i=0; i<c.size(); i++) { + ConnectionRecord cr = c.get(i); + // There is still a connection to the service that is + // being brought down. Mark it as dead. + cr.serviceDead = true; + try { + cr.conn.connected(r.name, null); + } catch (Exception e) { + Slog.w(TAG, "Failure disconnecting service " + r.name + + " to connection " + c.get(i).conn.asBinder() + + " (in " + c.get(i).binding.client.processName + ")", e); + } + } + } + } + + // Tell the service that it has been unbound. + if (r.bindings.size() > 0 && r.app != null && r.app.thread != null) { + Iterator<IntentBindRecord> it = r.bindings.values().iterator(); + while (it.hasNext()) { + IntentBindRecord ibr = it.next(); + if (DEBUG_SERVICE) Slog.v(TAG, "Bringing down binding " + ibr + + ": hasBound=" + ibr.hasBound); + if (r.app != null && r.app.thread != null && ibr.hasBound) { + try { + bumpServiceExecutingLocked(r, "bring down unbind"); + mAm.updateOomAdjLocked(r.app); + ibr.hasBound = false; + r.app.thread.scheduleUnbindService(r, + ibr.intent.getIntent()); + } catch (Exception e) { + Slog.w(TAG, "Exception when unbinding service " + + r.shortName, e); + serviceDoneExecutingLocked(r, true); + } + } + } + } + + if (DEBUG_SERVICE) Slog.v(TAG, "Bringing down " + r + " " + r.intent); + EventLog.writeEvent(EventLogTags.AM_DESTROY_SERVICE, + System.identityHashCode(r), r.shortName, + (r.app != null) ? r.app.pid : -1); + + mServiceMap.removeServiceByName(r.name, r.userId); + mServiceMap.removeServiceByIntent(r.intent, r.userId); + r.totalRestartCount = 0; + unscheduleServiceRestartLocked(r); + + // Also make sure it is not on the pending list. + int N = mPendingServices.size(); + for (int i=0; i<N; i++) { + if (mPendingServices.get(i) == r) { + mPendingServices.remove(i); + if (DEBUG_SERVICE) Slog.v(TAG, "Removed pending: " + r); + i--; + N--; + } + } + + r.cancelNotification(); + r.isForeground = false; + r.foregroundId = 0; + r.foregroundNoti = null; + + // Clear start entries. + r.clearDeliveredStartsLocked(); + r.pendingStarts.clear(); + + if (r.app != null) { + synchronized (r.stats.getBatteryStats()) { + r.stats.stopLaunchedLocked(); + } + r.app.services.remove(r); + if (r.app.thread != null) { + try { + bumpServiceExecutingLocked(r, "stop"); + mStoppingServices.add(r); + mAm.updateOomAdjLocked(r.app); + r.app.thread.scheduleStopService(r); + } catch (Exception e) { + Slog.w(TAG, "Exception when stopping service " + + r.shortName, e); + serviceDoneExecutingLocked(r, true); + } + updateServiceForegroundLocked(r.app, false); + } else { + if (DEBUG_SERVICE) Slog.v( + TAG, "Removed service that has no process: " + r); + } + } else { + if (DEBUG_SERVICE) Slog.v( + TAG, "Removed service that is not running: " + r); + } + + if (r.bindings.size() > 0) { + r.bindings.clear(); + } + + if (r.restarter instanceof ServiceRestarter) { + ((ServiceRestarter)r.restarter).setService(null); + } + } + + void removeConnectionLocked( + ConnectionRecord c, ProcessRecord skipApp, ActivityRecord skipAct) { + IBinder binder = c.conn.asBinder(); + AppBindRecord b = c.binding; + ServiceRecord s = b.service; + ArrayList<ConnectionRecord> clist = s.connections.get(binder); + if (clist != null) { + clist.remove(c); + if (clist.size() == 0) { + s.connections.remove(binder); + } + } + b.connections.remove(c); + if (c.activity != null && c.activity != skipAct) { + if (c.activity.connections != null) { + c.activity.connections.remove(c); + } + } + if (b.client != skipApp) { + b.client.connections.remove(c); + if ((c.flags&Context.BIND_ABOVE_CLIENT) != 0) { + b.client.updateHasAboveClientLocked(); + } + } + clist = mServiceConnections.get(binder); + if (clist != null) { + clist.remove(c); + if (clist.size() == 0) { + mServiceConnections.remove(binder); + } + } + + if (b.connections.size() == 0) { + b.intent.apps.remove(b.client); + } + + if (!c.serviceDead) { + if (DEBUG_SERVICE) Slog.v(TAG, "Disconnecting binding " + b.intent + + ": shouldUnbind=" + b.intent.hasBound); + if (s.app != null && s.app.thread != null && b.intent.apps.size() == 0 + && b.intent.hasBound) { + try { + bumpServiceExecutingLocked(s, "unbind"); + mAm.updateOomAdjLocked(s.app); + b.intent.hasBound = false; + // Assume the client doesn't want to know about a rebind; + // we will deal with that later if it asks for one. + b.intent.doRebind = false; + s.app.thread.scheduleUnbindService(s, b.intent.intent.getIntent()); + } catch (Exception e) { + Slog.w(TAG, "Exception when unbinding service " + s.shortName, e); + serviceDoneExecutingLocked(s, true); + } + } + + if ((c.flags&Context.BIND_AUTO_CREATE) != 0) { + bringDownServiceLocked(s, false); + } + } + } + + void serviceDoneExecutingLocked(ServiceRecord r, int type, int startId, int res) { + boolean inStopping = mStoppingServices.contains(r); + if (r != null) { + if (type == 1) { + // This is a call from a service start... take care of + // book-keeping. + r.callStart = true; + switch (res) { + case Service.START_STICKY_COMPATIBILITY: + case Service.START_STICKY: { + // We are done with the associated start arguments. + r.findDeliveredStart(startId, true); + // Don't stop if killed. + r.stopIfKilled = false; + break; + } + case Service.START_NOT_STICKY: { + // We are done with the associated start arguments. + r.findDeliveredStart(startId, true); + if (r.getLastStartId() == startId) { + // There is no more work, and this service + // doesn't want to hang around if killed. + r.stopIfKilled = true; + } + break; + } + case Service.START_REDELIVER_INTENT: { + // We'll keep this item until they explicitly + // call stop for it, but keep track of the fact + // that it was delivered. + ServiceRecord.StartItem si = r.findDeliveredStart(startId, false); + if (si != null) { + si.deliveryCount = 0; + si.doneExecutingCount++; + // Don't stop if killed. + r.stopIfKilled = true; + } + break; + } + case Service.START_TASK_REMOVED_COMPLETE: { + // Special processing for onTaskRemoved(). Don't + // impact normal onStartCommand() processing. + r.findDeliveredStart(startId, true); + break; + } + default: + throw new IllegalArgumentException( + "Unknown service start result: " + res); + } + if (res == Service.START_STICKY_COMPATIBILITY) { + r.callStart = false; + } + } + if (DEBUG_MU) + Slog.v(TAG_MU, "before serviceDontExecutingLocked, uid=" + + Binder.getOrigCallingUid()); + final long origId = Binder.clearCallingIdentity(); + serviceDoneExecutingLocked(r, inStopping); + Binder.restoreCallingIdentity(origId); + } else { + Slog.w(TAG, "Done executing unknown service from pid " + + Binder.getCallingPid()); + } + } + + private void serviceDoneExecutingLocked(ServiceRecord r, boolean inStopping) { + if (DEBUG_SERVICE) Slog.v(TAG, "<<< DONE EXECUTING " + r + + ": nesting=" + r.executeNesting + + ", inStopping=" + inStopping + ", app=" + r.app); + else if (DEBUG_SERVICE_EXECUTING) Slog.v(TAG, "<<< DONE EXECUTING " + r.shortName); + r.executeNesting--; + if (r.executeNesting <= 0 && r.app != null) { + if (DEBUG_SERVICE) Slog.v(TAG, + "Nesting at 0 of " + r.shortName); + r.app.executingServices.remove(r); + if (r.app.executingServices.size() == 0) { + if (DEBUG_SERVICE || DEBUG_SERVICE_EXECUTING) Slog.v(TAG, + "No more executingServices of " + r.shortName); + mAm.mHandler.removeMessages(ActivityManagerService.SERVICE_TIMEOUT_MSG, r.app); + } + if (inStopping) { + if (DEBUG_SERVICE) Slog.v(TAG, + "doneExecuting remove stopping " + r); + mStoppingServices.remove(r); + r.bindings.clear(); + } + mAm.updateOomAdjLocked(r.app); + } + } + + boolean attachApplicationLocked(ProcessRecord proc, String processName) throws Exception { + boolean didSomething = false; + if (mPendingServices.size() > 0) { + ServiceRecord sr = null; + try { + for (int i=0; i<mPendingServices.size(); i++) { + sr = mPendingServices.get(i); + if (proc != sr.isolatedProc && (proc.uid != sr.appInfo.uid + || !processName.equals(sr.processName))) { + continue; + } + + mPendingServices.remove(i); + i--; + realStartServiceLocked(sr, proc); + didSomething = true; + } + } catch (Exception e) { + Slog.w(TAG, "Exception in new application when starting service " + + sr.shortName, e); + throw e; + } + } + return didSomething; + } + + void processStartTimedOutLocked(ProcessRecord proc) { + for (int i=0; i<mPendingServices.size(); i++) { + ServiceRecord sr = mPendingServices.get(i); + if ((proc.uid == sr.appInfo.uid + && proc.processName.equals(sr.processName)) + || sr.isolatedProc == proc) { + Slog.w(TAG, "Forcing bringing down service: " + sr); + sr.isolatedProc = null; + mPendingServices.remove(i); + i--; + bringDownServiceLocked(sr, true); + } + } + } + + boolean forceStopLocked(String name, int userId, boolean evenPersistent, boolean doit) { + boolean didSomething = false; + ArrayList<ServiceRecord> services = new ArrayList<ServiceRecord>(); + for (ServiceRecord service : mServiceMap.getAllServices(userId)) { + if (service.packageName.equals(name) + && (service.app == null || evenPersistent || !service.app.persistent)) { + if (!doit) { + return true; + } + didSomething = true; + Slog.i(TAG, " Force stopping service " + service); + if (service.app != null) { + service.app.removed = true; + } + service.app = null; + service.isolatedProc = null; + services.add(service); + } + } + + int N = services.size(); + for (int i=0; i<N; i++) { + bringDownServiceLocked(services.get(i), true); + } + return didSomething; + } + + void cleanUpRemovedTaskLocked(TaskRecord tr, ComponentName component, Intent baseIntent) { + ArrayList<ServiceRecord> services = new ArrayList<ServiceRecord>(); + for (ServiceRecord sr : mServiceMap.getAllServices(tr.userId)) { + if (sr.packageName.equals(component.getPackageName())) { + services.add(sr); + } + } + + // Take care of any running services associated with the app. + for (int i=0; i<services.size(); i++) { + ServiceRecord sr = services.get(i); + if (sr.startRequested) { + if ((sr.serviceInfo.flags&ServiceInfo.FLAG_STOP_WITH_TASK) != 0) { + Slog.i(TAG, "Stopping service " + sr.shortName + ": remove task"); + stopServiceLocked(sr); + } else { + sr.pendingStarts.add(new ServiceRecord.StartItem(sr, true, + sr.makeNextStartId(), baseIntent, null)); + if (sr.app != null && sr.app.thread != null) { + sendServiceArgsLocked(sr, false); + } + } + } + } + } + + final void killServicesLocked(ProcessRecord app, + boolean allowRestart) { + // Report disconnected services. + if (false) { + // XXX we are letting the client link to the service for + // death notifications. + if (app.services.size() > 0) { + Iterator<ServiceRecord> it = app.services.iterator(); + while (it.hasNext()) { + ServiceRecord r = it.next(); + if (r.connections.size() > 0) { + Iterator<ArrayList<ConnectionRecord>> jt + = r.connections.values().iterator(); + while (jt.hasNext()) { + ArrayList<ConnectionRecord> cl = jt.next(); + for (int i=0; i<cl.size(); i++) { + ConnectionRecord c = cl.get(i); + if (c.binding.client != app) { + try { + //c.conn.connected(r.className, null); + } catch (Exception e) { + // todo: this should be asynchronous! + Slog.w(TAG, "Exception thrown disconnected servce " + + r.shortName + + " from app " + app.processName, e); + } + } + } + } + } + } + } + } + + // Clean up any connections this application has to other services. + if (app.connections.size() > 0) { + Iterator<ConnectionRecord> it = app.connections.iterator(); + while (it.hasNext()) { + ConnectionRecord r = it.next(); + removeConnectionLocked(r, app, null); + } + } + app.connections.clear(); + + if (app.services.size() != 0) { + // Any services running in the application need to be placed + // back in the pending list. + Iterator<ServiceRecord> it = app.services.iterator(); + while (it.hasNext()) { + ServiceRecord sr = it.next(); + synchronized (sr.stats.getBatteryStats()) { + sr.stats.stopLaunchedLocked(); + } + sr.app = null; + sr.isolatedProc = null; + sr.executeNesting = 0; + if (mStoppingServices.remove(sr)) { + if (DEBUG_SERVICE) Slog.v(TAG, "killServices remove stopping " + sr); + } + + boolean hasClients = sr.bindings.size() > 0; + if (hasClients) { + Iterator<IntentBindRecord> bindings + = sr.bindings.values().iterator(); + while (bindings.hasNext()) { + IntentBindRecord b = bindings.next(); + if (DEBUG_SERVICE) Slog.v(TAG, "Killing binding " + b + + ": shouldUnbind=" + b.hasBound); + b.binder = null; + b.requested = b.received = b.hasBound = false; + } + } + + if (sr.crashCount >= 2 && (sr.serviceInfo.applicationInfo.flags + &ApplicationInfo.FLAG_PERSISTENT) == 0) { + Slog.w(TAG, "Service crashed " + sr.crashCount + + " times, stopping: " + sr); + EventLog.writeEvent(EventLogTags.AM_SERVICE_CRASHED_TOO_MUCH, + sr.crashCount, sr.shortName, app.pid); + bringDownServiceLocked(sr, true); + } else if (!allowRestart) { + bringDownServiceLocked(sr, true); + } else { + boolean canceled = scheduleServiceRestartLocked(sr, true); + + // Should the service remain running? Note that in the + // extreme case of so many attempts to deliver a command + // that it failed we also will stop it here. + if (sr.startRequested && (sr.stopIfKilled || canceled)) { + if (sr.pendingStarts.size() == 0) { + sr.startRequested = false; + if (!hasClients) { + // Whoops, no reason to restart! + bringDownServiceLocked(sr, true); + } + } + } + } + } + + if (!allowRestart) { + app.services.clear(); + } + } + + // Make sure we have no more records on the stopping list. + int i = mStoppingServices.size(); + while (i > 0) { + i--; + ServiceRecord sr = mStoppingServices.get(i); + if (sr.app == app) { + mStoppingServices.remove(i); + if (DEBUG_SERVICE) Slog.v(TAG, "killServices remove stopping " + sr); + } + } + + app.executingServices.clear(); + } + + ActivityManager.RunningServiceInfo makeRunningServiceInfoLocked(ServiceRecord r) { + ActivityManager.RunningServiceInfo info = + new ActivityManager.RunningServiceInfo(); + info.service = r.name; + if (r.app != null) { + info.pid = r.app.pid; + } + info.uid = r.appInfo.uid; + info.process = r.processName; + info.foreground = r.isForeground; + info.activeSince = r.createTime; + info.started = r.startRequested; + info.clientCount = r.connections.size(); + info.crashCount = r.crashCount; + info.lastActivityTime = r.lastActivity; + if (r.isForeground) { + info.flags |= ActivityManager.RunningServiceInfo.FLAG_FOREGROUND; + } + if (r.startRequested) { + info.flags |= ActivityManager.RunningServiceInfo.FLAG_STARTED; + } + if (r.app != null && r.app.pid == ActivityManagerService.MY_PID) { + info.flags |= ActivityManager.RunningServiceInfo.FLAG_SYSTEM_PROCESS; + } + if (r.app != null && r.app.persistent) { + info.flags |= ActivityManager.RunningServiceInfo.FLAG_PERSISTENT_PROCESS; + } + + for (ArrayList<ConnectionRecord> connl : r.connections.values()) { + for (int i=0; i<connl.size(); i++) { + ConnectionRecord conn = connl.get(i); + if (conn.clientLabel != 0) { + info.clientPackage = conn.binding.client.info.packageName; + info.clientLabel = conn.clientLabel; + return info; + } + } + } + return info; + } + + List<ActivityManager.RunningServiceInfo> getRunningServiceInfoLocked(int maxNum, + int flags) { + ArrayList<ActivityManager.RunningServiceInfo> res + = new ArrayList<ActivityManager.RunningServiceInfo>(); + + int userId = UserId.getUserId(Binder.getCallingUid()); + if (mServiceMap.getAllServices(userId).size() > 0) { + Iterator<ServiceRecord> it + = mServiceMap.getAllServices(userId).iterator(); + while (it.hasNext() && res.size() < maxNum) { + res.add(makeRunningServiceInfoLocked(it.next())); + } + } + + for (int i=0; i<mRestartingServices.size() && res.size() < maxNum; i++) { + ServiceRecord r = mRestartingServices.get(i); + ActivityManager.RunningServiceInfo info = + makeRunningServiceInfoLocked(r); + info.restarting = r.nextRestartTime; + res.add(info); + } + + return res; + } + + public PendingIntent getRunningServiceControlPanelLocked(ComponentName name) { + int userId = UserId.getUserId(Binder.getCallingUid()); + ServiceRecord r = mServiceMap.getServiceByName(name, userId); + if (r != null) { + for (ArrayList<ConnectionRecord> conn : r.connections.values()) { + for (int i=0; i<conn.size(); i++) { + if (conn.get(i).clientIntent != null) { + return conn.get(i).clientIntent; + } + } + } + } + return null; + } + + void serviceTimeout(ProcessRecord proc) { + String anrMessage = null; + + synchronized(this) { + if (proc.executingServices.size() == 0 || proc.thread == null) { + return; + } + long maxTime = SystemClock.uptimeMillis() - SERVICE_TIMEOUT; + Iterator<ServiceRecord> it = proc.executingServices.iterator(); + ServiceRecord timeout = null; + long nextTime = 0; + while (it.hasNext()) { + ServiceRecord sr = it.next(); + if (sr.executingStart < maxTime) { + timeout = sr; + break; + } + if (sr.executingStart > nextTime) { + nextTime = sr.executingStart; + } + } + if (timeout != null && mAm.mLruProcesses.contains(proc)) { + Slog.w(TAG, "Timeout executing service: " + timeout); + anrMessage = "Executing service " + timeout.shortName; + } else { + Message msg = mAm.mHandler.obtainMessage( + ActivityManagerService.SERVICE_TIMEOUT_MSG); + msg.obj = proc; + mAm.mHandler.sendMessageAtTime(msg, nextTime+SERVICE_TIMEOUT); + } + } + + if (anrMessage != null) { + mAm.appNotResponding(proc, null, null, anrMessage); + } + } + + /** + * Prints a list of ServiceRecords (dumpsys activity services) + */ + boolean dumpServicesLocked(FileDescriptor fd, PrintWriter pw, String[] args, + int opti, boolean dumpAll, boolean dumpClient, String dumpPackage) { + boolean needSep = false; + + ItemMatcher matcher = new ItemMatcher(); + matcher.build(args, opti); + + pw.println("ACTIVITY MANAGER SERVICES (dumpsys activity services)"); + try { + List<UserInfo> users = AppGlobals.getPackageManager().getUsers(); + for (UserInfo user : users) { + if (mServiceMap.getAllServices(user.id).size() > 0) { + boolean printed = false; + long nowReal = SystemClock.elapsedRealtime(); + Iterator<ServiceRecord> it = mServiceMap.getAllServices( + user.id).iterator(); + needSep = false; + while (it.hasNext()) { + ServiceRecord r = it.next(); + if (!matcher.match(r, r.name)) { + continue; + } + if (dumpPackage != null && !dumpPackage.equals(r.appInfo.packageName)) { + continue; + } + if (!printed) { + pw.println(" Active services:"); + printed = true; + } + if (needSep) { + pw.println(); + } + pw.print(" * "); + pw.println(r); + if (dumpAll) { + r.dump(pw, " "); + needSep = true; + } else { + pw.print(" app="); + pw.println(r.app); + pw.print(" created="); + TimeUtils.formatDuration(r.createTime, nowReal, pw); + pw.print(" started="); + pw.print(r.startRequested); + pw.print(" connections="); + pw.println(r.connections.size()); + if (r.connections.size() > 0) { + pw.println(" Connections:"); + for (ArrayList<ConnectionRecord> clist : r.connections.values()) { + for (int i = 0; i < clist.size(); i++) { + ConnectionRecord conn = clist.get(i); + pw.print(" "); + pw.print(conn.binding.intent.intent.getIntent() + .toShortString(false, false, false, false)); + pw.print(" -> "); + ProcessRecord proc = conn.binding.client; + pw.println(proc != null ? proc.toShortString() : "null"); + } + } + } + } + if (dumpClient && r.app != null && r.app.thread != null) { + pw.println(" Client:"); + pw.flush(); + try { + TransferPipe tp = new TransferPipe(); + try { + r.app.thread.dumpService(tp.getWriteFd().getFileDescriptor(), + r, args); + tp.setBufferPrefix(" "); + // Short timeout, since blocking here can + // deadlock with the application. + tp.go(fd, 2000); + } finally { + tp.kill(); + } + } catch (IOException e) { + pw.println(" Failure while dumping the service: " + e); + } catch (RemoteException e) { + pw.println(" Got a RemoteException while dumping the service"); + } + needSep = true; + } + } + needSep = printed; + } + } + } catch (RemoteException re) { + + } + + if (mPendingServices.size() > 0) { + boolean printed = false; + for (int i=0; i<mPendingServices.size(); i++) { + ServiceRecord r = mPendingServices.get(i); + if (!matcher.match(r, r.name)) { + continue; + } + if (dumpPackage != null && !dumpPackage.equals(r.appInfo.packageName)) { + continue; + } + if (!printed) { + if (needSep) pw.println(" "); + needSep = true; + pw.println(" Pending services:"); + printed = true; + } + pw.print(" * Pending "); pw.println(r); + r.dump(pw, " "); + } + needSep = true; + } + + if (mRestartingServices.size() > 0) { + boolean printed = false; + for (int i=0; i<mRestartingServices.size(); i++) { + ServiceRecord r = mRestartingServices.get(i); + if (!matcher.match(r, r.name)) { + continue; + } + if (dumpPackage != null && !dumpPackage.equals(r.appInfo.packageName)) { + continue; + } + if (!printed) { + if (needSep) pw.println(" "); + needSep = true; + pw.println(" Restarting services:"); + printed = true; + } + pw.print(" * Restarting "); pw.println(r); + r.dump(pw, " "); + } + needSep = true; + } + + if (mStoppingServices.size() > 0) { + boolean printed = false; + for (int i=0; i<mStoppingServices.size(); i++) { + ServiceRecord r = mStoppingServices.get(i); + if (!matcher.match(r, r.name)) { + continue; + } + if (dumpPackage != null && !dumpPackage.equals(r.appInfo.packageName)) { + continue; + } + if (!printed) { + if (needSep) pw.println(" "); + needSep = true; + pw.println(" Stopping services:"); + printed = true; + } + pw.print(" * Stopping "); pw.println(r); + r.dump(pw, " "); + } + needSep = true; + } + + if (dumpAll) { + if (mServiceConnections.size() > 0) { + boolean printed = false; + Iterator<ArrayList<ConnectionRecord>> it + = mServiceConnections.values().iterator(); + while (it.hasNext()) { + ArrayList<ConnectionRecord> r = it.next(); + for (int i=0; i<r.size(); i++) { + ConnectionRecord cr = r.get(i); + if (!matcher.match(cr.binding.service, cr.binding.service.name)) { + continue; + } + if (dumpPackage != null && (cr.binding.client == null + || !dumpPackage.equals(cr.binding.client.info.packageName))) { + continue; + } + if (!printed) { + if (needSep) pw.println(" "); + needSep = true; + pw.println(" Connection bindings to services:"); + printed = true; + } + pw.print(" * "); pw.println(cr); + cr.dump(pw, " "); + } + } + needSep = true; + } + } + + return needSep; + } + + /** + * There are three ways to call this: + * - no service specified: dump all the services + * - a flattened component name that matched an existing service was specified as the + * first arg: dump that one service + * - the first arg isn't the flattened component name of an existing service: + * dump all services whose component contains the first arg as a substring + */ + protected boolean dumpService(FileDescriptor fd, PrintWriter pw, String name, String[] args, + int opti, boolean dumpAll) { + ArrayList<ServiceRecord> services = new ArrayList<ServiceRecord>(); + + if ("all".equals(name)) { + synchronized (this) { + try { + List<UserInfo> users = AppGlobals.getPackageManager().getUsers(); + for (UserInfo user : users) { + for (ServiceRecord r1 : mServiceMap.getAllServices(user.id)) { + services.add(r1); + } + } + } catch (RemoteException re) { + } + } + } else { + ComponentName componentName = name != null + ? ComponentName.unflattenFromString(name) : null; + int objectId = 0; + if (componentName == null) { + // Not a '/' separated full component name; maybe an object ID? + try { + objectId = Integer.parseInt(name, 16); + name = null; + componentName = null; + } catch (RuntimeException e) { + } + } + + synchronized (this) { + try { + List<UserInfo> users = AppGlobals.getPackageManager().getUsers(); + for (UserInfo user : users) { + for (ServiceRecord r1 : mServiceMap.getAllServices(user.id)) { + if (componentName != null) { + if (r1.name.equals(componentName)) { + services.add(r1); + } + } else if (name != null) { + if (r1.name.flattenToString().contains(name)) { + services.add(r1); + } + } else if (System.identityHashCode(r1) == objectId) { + services.add(r1); + } + } + } + } catch (RemoteException re) { + } + } + } + + if (services.size() <= 0) { + return false; + } + + boolean needSep = false; + for (int i=0; i<services.size(); i++) { + if (needSep) { + pw.println(); + } + needSep = true; + dumpService("", fd, pw, services.get(i), args, dumpAll); + } + return true; + } + + /** + * Invokes IApplicationThread.dumpService() on the thread of the specified service if + * there is a thread associated with the service. + */ + private void dumpService(String prefix, FileDescriptor fd, PrintWriter pw, + final ServiceRecord r, String[] args, boolean dumpAll) { + String innerPrefix = prefix + " "; + synchronized (this) { + pw.print(prefix); pw.print("SERVICE "); + pw.print(r.shortName); pw.print(" "); + pw.print(Integer.toHexString(System.identityHashCode(r))); + pw.print(" pid="); + if (r.app != null) pw.println(r.app.pid); + else pw.println("(not running)"); + if (dumpAll) { + r.dump(pw, innerPrefix); + } + } + if (r.app != null && r.app.thread != null) { + pw.print(prefix); pw.println(" Client:"); + pw.flush(); + try { + TransferPipe tp = new TransferPipe(); + try { + r.app.thread.dumpService(tp.getWriteFd().getFileDescriptor(), r, args); + tp.setBufferPrefix(prefix + " "); + tp.go(fd); + } finally { + tp.kill(); + } + } catch (IOException e) { + pw.println(prefix + " Failure while dumping the service: " + e); + } catch (RemoteException e) { + pw.println(prefix + " Got a RemoteException while dumping the service"); + } + } + } + +} |