diff options
Diffstat (limited to 'services/core/java/com/android/server/content/SyncManager.java')
| -rw-r--r-- | services/core/java/com/android/server/content/SyncManager.java | 2940 |
1 files changed, 2940 insertions, 0 deletions
diff --git a/services/core/java/com/android/server/content/SyncManager.java b/services/core/java/com/android/server/content/SyncManager.java new file mode 100644 index 0000000..71d8d99 --- /dev/null +++ b/services/core/java/com/android/server/content/SyncManager.java @@ -0,0 +1,2940 @@ +/* + * Copyright (C) 2008 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.content; + +import android.accounts.Account; +import android.accounts.AccountAndUser; +import android.accounts.AccountManager; +import android.app.ActivityManager; +import android.app.AlarmManager; +import android.app.AppGlobals; +import android.app.Notification; +import android.app.NotificationManager; +import android.app.PendingIntent; +import android.content.BroadcastReceiver; +import android.content.ComponentName; +import android.content.ContentResolver; +import android.content.Context; +import android.content.ISyncAdapter; +import android.content.ISyncContext; +import android.content.ISyncStatusObserver; +import android.content.Intent; +import android.content.IntentFilter; +import android.content.PeriodicSync; +import android.content.ServiceConnection; +import android.content.SyncActivityTooManyDeletes; +import android.content.SyncAdapterType; +import android.content.SyncAdaptersCache; +import android.content.SyncInfo; +import android.content.SyncResult; +import android.content.SyncStatusInfo; +import android.content.pm.ApplicationInfo; +import android.content.pm.PackageInfo; +import android.content.pm.PackageManager; +import android.content.pm.ProviderInfo; +import android.content.pm.RegisteredServicesCache; +import android.content.pm.RegisteredServicesCacheListener; +import android.content.pm.ResolveInfo; +import android.content.pm.UserInfo; +import android.net.ConnectivityManager; +import android.net.NetworkInfo; +import android.os.Bundle; +import android.os.Handler; +import android.os.IBinder; +import android.os.Looper; +import android.os.Message; +import android.os.PowerManager; +import android.os.RemoteException; +import android.os.SystemClock; +import android.os.SystemProperties; +import android.os.UserHandle; +import android.os.UserManager; +import android.os.WorkSource; +import android.provider.Settings; +import android.text.format.DateUtils; +import android.text.format.Time; +import android.text.TextUtils; +import android.util.EventLog; +import android.util.Log; +import android.util.Pair; + +import com.android.internal.R; +import com.android.internal.annotations.GuardedBy; +import com.android.internal.os.BackgroundThread; +import com.android.internal.util.IndentingPrintWriter; +import com.android.server.accounts.AccountManagerService; +import com.android.server.content.SyncStorageEngine.AuthorityInfo; +import com.android.server.content.SyncStorageEngine.OnSyncRequestListener; +import com.google.android.collect.Lists; +import com.google.android.collect.Maps; +import com.google.android.collect.Sets; + +import java.io.FileDescriptor; +import java.io.PrintWriter; +import java.text.SimpleDateFormat; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Arrays; +import java.util.Collection; +import java.util.Collections; +import java.util.Comparator; +import java.util.HashMap; +import java.util.HashSet; +import java.util.Iterator; +import java.util.List; +import java.util.Map; +import java.util.Random; +import java.util.Set; +import java.util.concurrent.CountDownLatch; + +/** + * @hide + */ +public class SyncManager { + private static final String TAG = "SyncManager"; + + /** Delay a sync due to local changes this long. In milliseconds */ + private static final long LOCAL_SYNC_DELAY; + + /** + * If a sync takes longer than this and the sync queue is not empty then we will + * cancel it and add it back to the end of the sync queue. In milliseconds. + */ + private static final long MAX_TIME_PER_SYNC; + + static { + final boolean isLargeRAM = !ActivityManager.isLowRamDeviceStatic(); + int defaultMaxInitSyncs = isLargeRAM ? 5 : 2; + int defaultMaxRegularSyncs = isLargeRAM ? 2 : 1; + MAX_SIMULTANEOUS_INITIALIZATION_SYNCS = + SystemProperties.getInt("sync.max_init_syncs", defaultMaxInitSyncs); + MAX_SIMULTANEOUS_REGULAR_SYNCS = + SystemProperties.getInt("sync.max_regular_syncs", defaultMaxRegularSyncs); + LOCAL_SYNC_DELAY = + SystemProperties.getLong("sync.local_sync_delay", 30 * 1000 /* 30 seconds */); + MAX_TIME_PER_SYNC = + SystemProperties.getLong("sync.max_time_per_sync", 5 * 60 * 1000 /* 5 minutes */); + SYNC_NOTIFICATION_DELAY = + SystemProperties.getLong("sync.notification_delay", 30 * 1000 /* 30 seconds */); + } + + private static final long SYNC_NOTIFICATION_DELAY; + + /** + * When retrying a sync for the first time use this delay. After that + * the retry time will double until it reached MAX_SYNC_RETRY_TIME. + * In milliseconds. + */ + private static final long INITIAL_SYNC_RETRY_TIME_IN_MS = 30 * 1000; // 30 seconds + + /** + * Default the max sync retry time to this value. + */ + private static final long DEFAULT_MAX_SYNC_RETRY_TIME_IN_SECONDS = 60 * 60; // one hour + + /** + * How long to wait before retrying a sync that failed due to one already being in progress. + */ + private static final int DELAY_RETRY_SYNC_IN_PROGRESS_IN_SECONDS = 10; + + private static final int INITIALIZATION_UNBIND_DELAY_MS = 5000; + + private static final String SYNC_WAKE_LOCK_PREFIX = "*sync*"; + private static final String HANDLE_SYNC_ALARM_WAKE_LOCK = "SyncManagerHandleSyncAlarm"; + private static final String SYNC_LOOP_WAKE_LOCK = "SyncLoopWakeLock"; + + private static final int MAX_SIMULTANEOUS_REGULAR_SYNCS; + private static final int MAX_SIMULTANEOUS_INITIALIZATION_SYNCS; + + private Context mContext; + + private static final AccountAndUser[] INITIAL_ACCOUNTS_ARRAY = new AccountAndUser[0]; + + // TODO: add better locking around mRunningAccounts + private volatile AccountAndUser[] mRunningAccounts = INITIAL_ACCOUNTS_ARRAY; + + volatile private PowerManager.WakeLock mHandleAlarmWakeLock; + volatile private PowerManager.WakeLock mSyncManagerWakeLock; + volatile private boolean mDataConnectionIsConnected = false; + volatile private boolean mStorageIsLow = false; + + private final NotificationManager mNotificationMgr; + private AlarmManager mAlarmService = null; + + private SyncStorageEngine mSyncStorageEngine; + + @GuardedBy("mSyncQueue") + private final SyncQueue mSyncQueue; + + protected final ArrayList<ActiveSyncContext> mActiveSyncContexts = Lists.newArrayList(); + + // set if the sync active indicator should be reported + private boolean mNeedSyncActiveNotification = false; + + private final PendingIntent mSyncAlarmIntent; + // Synchronized on "this". Instead of using this directly one should instead call + // its accessor, getConnManager(). + private ConnectivityManager mConnManagerDoNotUseDirectly; + + protected SyncAdaptersCache mSyncAdapters; + + private BroadcastReceiver mStorageIntentReceiver = + new BroadcastReceiver() { + @Override + public void onReceive(Context context, Intent intent) { + String action = intent.getAction(); + if (Intent.ACTION_DEVICE_STORAGE_LOW.equals(action)) { + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "Internal storage is low."); + } + mStorageIsLow = true; + cancelActiveSync(null /* any account */, UserHandle.USER_ALL, + null /* any authority */); + } else if (Intent.ACTION_DEVICE_STORAGE_OK.equals(action)) { + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "Internal storage is ok."); + } + mStorageIsLow = false; + sendCheckAlarmsMessage(); + } + } + }; + + private BroadcastReceiver mBootCompletedReceiver = new BroadcastReceiver() { + @Override + public void onReceive(Context context, Intent intent) { + mSyncHandler.onBootCompleted(); + } + }; + + private BroadcastReceiver mBackgroundDataSettingChanged = new BroadcastReceiver() { + @Override + public void onReceive(Context context, Intent intent) { + if (getConnectivityManager().getBackgroundDataSetting()) { + scheduleSync(null /* account */, UserHandle.USER_ALL, + SyncOperation.REASON_BACKGROUND_DATA_SETTINGS_CHANGED, + null /* authority */, + new Bundle(), 0 /* delay */, 0 /* delay */, + false /* onlyThoseWithUnknownSyncableState */); + } + } + }; + + private BroadcastReceiver mAccountsUpdatedReceiver = new BroadcastReceiver() { + @Override + public void onReceive(Context context, Intent intent) { + updateRunningAccounts(); + + // Kick off sync for everyone, since this was a radical account change + scheduleSync(null, UserHandle.USER_ALL, SyncOperation.REASON_ACCOUNTS_UPDATED, null, + null, 0 /* no delay */, 0/* no delay */, false); + } + }; + + private final PowerManager mPowerManager; + + // Use this as a random offset to seed all periodic syncs. + private int mSyncRandomOffsetMillis; + + private final UserManager mUserManager; + + private static final long SYNC_ALARM_TIMEOUT_MIN = 30 * 1000; // 30 seconds + private static final long SYNC_ALARM_TIMEOUT_MAX = 2 * 60 * 60 * 1000; // two hours + + private List<UserInfo> getAllUsers() { + return mUserManager.getUsers(); + } + + private boolean containsAccountAndUser(AccountAndUser[] accounts, Account account, int userId) { + boolean found = false; + for (int i = 0; i < accounts.length; i++) { + if (accounts[i].userId == userId + && accounts[i].account.equals(account)) { + found = true; + break; + } + } + return found; + } + + public void updateRunningAccounts() { + mRunningAccounts = AccountManagerService.getSingleton().getRunningAccounts(); + + if (mBootCompleted) { + doDatabaseCleanup(); + } + + for (ActiveSyncContext currentSyncContext : mActiveSyncContexts) { + if (!containsAccountAndUser(mRunningAccounts, + currentSyncContext.mSyncOperation.account, + currentSyncContext.mSyncOperation.userId)) { + Log.d(TAG, "canceling sync since the account is no longer running"); + sendSyncFinishedOrCanceledMessage(currentSyncContext, + null /* no result since this is a cancel */); + } + } + + // we must do this since we don't bother scheduling alarms when + // the accounts are not set yet + sendCheckAlarmsMessage(); + } + + private void doDatabaseCleanup() { + for (UserInfo user : mUserManager.getUsers(true)) { + // Skip any partially created/removed users + if (user.partial) continue; + Account[] accountsForUser = AccountManagerService.getSingleton().getAccounts(user.id); + mSyncStorageEngine.doDatabaseCleanup(accountsForUser, user.id); + } + } + + private BroadcastReceiver mConnectivityIntentReceiver = + new BroadcastReceiver() { + @Override + public void onReceive(Context context, Intent intent) { + final boolean wasConnected = mDataConnectionIsConnected; + + // don't use the intent to figure out if network is connected, just check + // ConnectivityManager directly. + mDataConnectionIsConnected = readDataConnectionState(); + if (mDataConnectionIsConnected) { + if (!wasConnected) { + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "Reconnection detected: clearing all backoffs"); + } + synchronized(mSyncQueue) { + mSyncStorageEngine.clearAllBackoffsLocked(mSyncQueue); + } + } + sendCheckAlarmsMessage(); + } + } + }; + + private boolean readDataConnectionState() { + NetworkInfo networkInfo = getConnectivityManager().getActiveNetworkInfo(); + return (networkInfo != null) && networkInfo.isConnected(); + } + + private BroadcastReceiver mShutdownIntentReceiver = + new BroadcastReceiver() { + @Override + public void onReceive(Context context, Intent intent) { + Log.w(TAG, "Writing sync state before shutdown..."); + getSyncStorageEngine().writeAllState(); + } + }; + + private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { + @Override + public void onReceive(Context context, Intent intent) { + String action = intent.getAction(); + final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); + if (userId == UserHandle.USER_NULL) return; + + if (Intent.ACTION_USER_REMOVED.equals(action)) { + onUserRemoved(userId); + } else if (Intent.ACTION_USER_STARTING.equals(action)) { + onUserStarting(userId); + } else if (Intent.ACTION_USER_STOPPING.equals(action)) { + onUserStopping(userId); + } + } + }; + + private static final String ACTION_SYNC_ALARM = "android.content.syncmanager.SYNC_ALARM"; + private final SyncHandler mSyncHandler; + + private volatile boolean mBootCompleted = false; + + private ConnectivityManager getConnectivityManager() { + synchronized (this) { + if (mConnManagerDoNotUseDirectly == null) { + mConnManagerDoNotUseDirectly = (ConnectivityManager)mContext.getSystemService( + Context.CONNECTIVITY_SERVICE); + } + return mConnManagerDoNotUseDirectly; + } + } + + /** + * Should only be created after {@link ContentService#systemReady()} so that + * {@link PackageManager} is ready to query. + */ + public SyncManager(Context context, boolean factoryTest) { + // Initialize the SyncStorageEngine first, before registering observers + // and creating threads and so on; it may fail if the disk is full. + mContext = context; + + SyncStorageEngine.init(context); + mSyncStorageEngine = SyncStorageEngine.getSingleton(); + mSyncStorageEngine.setOnSyncRequestListener(new OnSyncRequestListener() { + @Override + public void onSyncRequest(Account account, int userId, int reason, String authority, + Bundle extras) { + scheduleSync(account, userId, reason, authority, extras, + 0 /* no delay */, + 0 /* no delay */, + false); + } + }); + + mSyncAdapters = new SyncAdaptersCache(mContext); + mSyncQueue = new SyncQueue(mContext.getPackageManager(), mSyncStorageEngine, mSyncAdapters); + + mSyncHandler = new SyncHandler(BackgroundThread.get().getLooper()); + + mSyncAdapters.setListener(new RegisteredServicesCacheListener<SyncAdapterType>() { + @Override + public void onServiceChanged(SyncAdapterType type, int userId, boolean removed) { + if (!removed) { + scheduleSync(null, UserHandle.USER_ALL, + SyncOperation.REASON_SERVICE_CHANGED, + type.authority, null, 0 /* no delay */, 0 /* no delay */, + false /* onlyThoseWithUnkownSyncableState */); + } + } + }, mSyncHandler); + + mSyncAlarmIntent = PendingIntent.getBroadcast( + mContext, 0 /* ignored */, new Intent(ACTION_SYNC_ALARM), 0); + + IntentFilter intentFilter = new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION); + context.registerReceiver(mConnectivityIntentReceiver, intentFilter); + + if (!factoryTest) { + intentFilter = new IntentFilter(Intent.ACTION_BOOT_COMPLETED); + context.registerReceiver(mBootCompletedReceiver, intentFilter); + } + + intentFilter = new IntentFilter(ConnectivityManager.ACTION_BACKGROUND_DATA_SETTING_CHANGED); + context.registerReceiver(mBackgroundDataSettingChanged, intentFilter); + + intentFilter = new IntentFilter(Intent.ACTION_DEVICE_STORAGE_LOW); + intentFilter.addAction(Intent.ACTION_DEVICE_STORAGE_OK); + context.registerReceiver(mStorageIntentReceiver, intentFilter); + + intentFilter = new IntentFilter(Intent.ACTION_SHUTDOWN); + intentFilter.setPriority(100); + context.registerReceiver(mShutdownIntentReceiver, intentFilter); + + intentFilter = new IntentFilter(); + intentFilter.addAction(Intent.ACTION_USER_REMOVED); + intentFilter.addAction(Intent.ACTION_USER_STARTING); + intentFilter.addAction(Intent.ACTION_USER_STOPPING); + mContext.registerReceiverAsUser( + mUserIntentReceiver, UserHandle.ALL, intentFilter, null, null); + + if (!factoryTest) { + mNotificationMgr = (NotificationManager) + context.getSystemService(Context.NOTIFICATION_SERVICE); + context.registerReceiver(new SyncAlarmIntentReceiver(), + new IntentFilter(ACTION_SYNC_ALARM)); + } else { + mNotificationMgr = null; + } + mPowerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); + mUserManager = (UserManager) mContext.getSystemService(Context.USER_SERVICE); + + // This WakeLock is used to ensure that we stay awake between the time that we receive + // a sync alarm notification and when we finish processing it. We need to do this + // because we don't do the work in the alarm handler, rather we do it in a message + // handler. + mHandleAlarmWakeLock = mPowerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, + HANDLE_SYNC_ALARM_WAKE_LOCK); + mHandleAlarmWakeLock.setReferenceCounted(false); + + // This WakeLock is used to ensure that we stay awake while running the sync loop + // message handler. Normally we will hold a sync adapter wake lock while it is being + // synced but during the execution of the sync loop it might finish a sync for + // one sync adapter before starting the sync for the other sync adapter and we + // don't want the device to go to sleep during that window. + mSyncManagerWakeLock = mPowerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, + SYNC_LOOP_WAKE_LOCK); + mSyncManagerWakeLock.setReferenceCounted(false); + + mSyncStorageEngine.addStatusChangeListener( + ContentResolver.SYNC_OBSERVER_TYPE_SETTINGS, new ISyncStatusObserver.Stub() { + @Override + public void onStatusChanged(int which) { + // force the sync loop to run if the settings change + sendCheckAlarmsMessage(); + } + }); + + if (!factoryTest) { + // Register for account list updates for all users + mContext.registerReceiverAsUser(mAccountsUpdatedReceiver, + UserHandle.ALL, + new IntentFilter(AccountManager.LOGIN_ACCOUNTS_CHANGED_ACTION), + null, null); + } + + // Pick a random second in a day to seed all periodic syncs + mSyncRandomOffsetMillis = mSyncStorageEngine.getSyncRandomOffset() * 1000; + } + + /** + * Return a random value v that satisfies minValue <= v < maxValue. The difference between + * maxValue and minValue must be less than Integer.MAX_VALUE. + */ + private long jitterize(long minValue, long maxValue) { + Random random = new Random(SystemClock.elapsedRealtime()); + long spread = maxValue - minValue; + if (spread > Integer.MAX_VALUE) { + throw new IllegalArgumentException("the difference between the maxValue and the " + + "minValue must be less than " + Integer.MAX_VALUE); + } + return minValue + random.nextInt((int)spread); + } + + public SyncStorageEngine getSyncStorageEngine() { + return mSyncStorageEngine; + } + + public int getIsSyncable(Account account, int userId, String providerName) { + int isSyncable = mSyncStorageEngine.getIsSyncable(account, userId, providerName); + UserInfo userInfo = UserManager.get(mContext).getUserInfo(userId); + + // If it's not a restricted user, return isSyncable + if (userInfo == null || !userInfo.isRestricted()) return isSyncable; + + // Else check if the sync adapter has opted-in or not + RegisteredServicesCache.ServiceInfo<SyncAdapterType> syncAdapterInfo = + mSyncAdapters.getServiceInfo( + SyncAdapterType.newKey(providerName, account.type), userId); + if (syncAdapterInfo == null) return isSyncable; + + PackageInfo pInfo = null; + try { + pInfo = AppGlobals.getPackageManager().getPackageInfo( + syncAdapterInfo.componentName.getPackageName(), 0, userId); + if (pInfo == null) return isSyncable; + } catch (RemoteException re) { + // Shouldn't happen + return isSyncable; + } + if (pInfo.restrictedAccountType != null + && pInfo.restrictedAccountType.equals(account.type)) { + return isSyncable; + } else { + return 0; + } + } + + private void ensureAlarmService() { + if (mAlarmService == null) { + mAlarmService = (AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE); + } + } + + /** + * Initiate a sync. This can start a sync for all providers + * (pass null to url, set onlyTicklable to false), only those + * providers that are marked as ticklable (pass null to url, + * set onlyTicklable to true), or a specific provider (set url + * to the content url of the provider). + * + * <p>If the ContentResolver.SYNC_EXTRAS_UPLOAD boolean in extras is + * true then initiate a sync that just checks for local changes to send + * to the server, otherwise initiate a sync that first gets any + * changes from the server before sending local changes back to + * the server. + * + * <p>If a specific provider is being synced (the url is non-null) + * then the extras can contain SyncAdapter-specific information + * to control what gets synced (e.g. which specific feed to sync). + * + * <p>You'll start getting callbacks after this. + * + * @param requestedAccount the account to sync, may be null to signify all accounts + * @param userId the id of the user whose accounts are to be synced. If userId is USER_ALL, + * then all users' accounts are considered. + * @param reason for sync request. If this is a positive integer, it is the Linux uid + * assigned to the process that requested the sync. If it's negative, the sync was requested by + * the SyncManager itself and could be one of the following: + * {@link SyncOperation#REASON_BACKGROUND_DATA_SETTINGS_CHANGED} + * {@link SyncOperation#REASON_ACCOUNTS_UPDATED} + * {@link SyncOperation#REASON_SERVICE_CHANGED} + * {@link SyncOperation#REASON_PERIODIC} + * {@link SyncOperation#REASON_IS_SYNCABLE} + * {@link SyncOperation#REASON_SYNC_AUTO} + * {@link SyncOperation#REASON_MASTER_SYNC_AUTO} + * {@link SyncOperation#REASON_USER_START} + * @param requestedAuthority the authority to sync, may be null to indicate all authorities + * @param extras a Map of SyncAdapter-specific information to control + * syncs of a specific provider. Can be null. Is ignored + * if the url is null. + * @param beforeRuntimeMillis milliseconds before runtimeMillis that this sync can run. + * @param runtimeMillis maximum milliseconds in the future to wait before performing sync. + * @param onlyThoseWithUnkownSyncableState Only sync authorities that have unknown state. + */ + public void scheduleSync(Account requestedAccount, int userId, int reason, + String requestedAuthority, Bundle extras, long beforeRuntimeMillis, + long runtimeMillis, boolean onlyThoseWithUnkownSyncableState) { + boolean isLoggable = Log.isLoggable(TAG, Log.VERBOSE); + + final boolean backgroundDataUsageAllowed = !mBootCompleted || + getConnectivityManager().getBackgroundDataSetting(); + + if (extras == null) { + extras = new Bundle(); + } + if (isLoggable) { + Log.d(TAG, "one-time sync for: " + requestedAccount + " " + extras.toString() + " " + + requestedAuthority); + } + Boolean expedited = extras.getBoolean(ContentResolver.SYNC_EXTRAS_EXPEDITED, false); + if (expedited) { + runtimeMillis = -1; // this means schedule at the front of the queue + } + + AccountAndUser[] accounts; + if (requestedAccount != null && userId != UserHandle.USER_ALL) { + accounts = new AccountAndUser[] { new AccountAndUser(requestedAccount, userId) }; + } else { + // if the accounts aren't configured yet then we can't support an account-less + // sync request + accounts = mRunningAccounts; + if (accounts.length == 0) { + if (isLoggable) { + Log.v(TAG, "scheduleSync: no accounts configured, dropping"); + } + return; + } + } + + final boolean uploadOnly = extras.getBoolean(ContentResolver.SYNC_EXTRAS_UPLOAD, false); + final boolean manualSync = extras.getBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, false); + if (manualSync) { + extras.putBoolean(ContentResolver.SYNC_EXTRAS_IGNORE_BACKOFF, true); + extras.putBoolean(ContentResolver.SYNC_EXTRAS_IGNORE_SETTINGS, true); + } + final boolean ignoreSettings = + extras.getBoolean(ContentResolver.SYNC_EXTRAS_IGNORE_SETTINGS, false); + + int source; + if (uploadOnly) { + source = SyncStorageEngine.SOURCE_LOCAL; + } else if (manualSync) { + source = SyncStorageEngine.SOURCE_USER; + } else if (requestedAuthority == null) { + source = SyncStorageEngine.SOURCE_POLL; + } else { + // this isn't strictly server, since arbitrary callers can (and do) request + // a non-forced two-way sync on a specific url + source = SyncStorageEngine.SOURCE_SERVER; + } + + for (AccountAndUser account : accounts) { + // Compile a list of authorities that have sync adapters. + // For each authority sync each account that matches a sync adapter. + final HashSet<String> syncableAuthorities = new HashSet<String>(); + for (RegisteredServicesCache.ServiceInfo<SyncAdapterType> syncAdapter : + mSyncAdapters.getAllServices(account.userId)) { + syncableAuthorities.add(syncAdapter.type.authority); + } + + // if the url was specified then replace the list of authorities + // with just this authority or clear it if this authority isn't + // syncable + if (requestedAuthority != null) { + final boolean hasSyncAdapter = syncableAuthorities.contains(requestedAuthority); + syncableAuthorities.clear(); + if (hasSyncAdapter) syncableAuthorities.add(requestedAuthority); + } + + for (String authority : syncableAuthorities) { + int isSyncable = getIsSyncable(account.account, account.userId, + authority); + if (isSyncable == 0) { + continue; + } + final RegisteredServicesCache.ServiceInfo<SyncAdapterType> syncAdapterInfo; + syncAdapterInfo = mSyncAdapters.getServiceInfo( + SyncAdapterType.newKey(authority, account.account.type), account.userId); + if (syncAdapterInfo == null) { + continue; + } + final boolean allowParallelSyncs = syncAdapterInfo.type.allowParallelSyncs(); + final boolean isAlwaysSyncable = syncAdapterInfo.type.isAlwaysSyncable(); + if (isSyncable < 0 && isAlwaysSyncable) { + mSyncStorageEngine.setIsSyncable(account.account, account.userId, authority, 1); + isSyncable = 1; + } + if (onlyThoseWithUnkownSyncableState && isSyncable >= 0) { + continue; + } + if (!syncAdapterInfo.type.supportsUploading() && uploadOnly) { + continue; + } + + // always allow if the isSyncable state is unknown + boolean syncAllowed = + (isSyncable < 0) + || ignoreSettings + || (backgroundDataUsageAllowed + && mSyncStorageEngine.getMasterSyncAutomatically(account.userId) + && mSyncStorageEngine.getSyncAutomatically(account.account, + account.userId, authority)); + if (!syncAllowed) { + if (isLoggable) { + Log.d(TAG, "scheduleSync: sync of " + account + ", " + authority + + " is not allowed, dropping request"); + } + continue; + } + + Pair<Long, Long> backoff = mSyncStorageEngine + .getBackoff(account.account, account.userId, authority); + long delayUntil = mSyncStorageEngine.getDelayUntilTime(account.account, + account.userId, authority); + final long backoffTime = backoff != null ? backoff.first : 0; + if (isSyncable < 0) { + // Initialisation sync. + Bundle newExtras = new Bundle(); + newExtras.putBoolean(ContentResolver.SYNC_EXTRAS_INITIALIZE, true); + if (isLoggable) { + Log.v(TAG, "schedule initialisation Sync:" + + ", delay until " + delayUntil + + ", run by " + 0 + + ", source " + source + + ", account " + account + + ", authority " + authority + + ", extras " + newExtras); + } + scheduleSyncOperation( + new SyncOperation(account.account, account.userId, reason, source, + authority, newExtras, 0 /* immediate */, 0 /* No flex time*/, + backoffTime, delayUntil, allowParallelSyncs)); + } + if (!onlyThoseWithUnkownSyncableState) { + if (isLoggable) { + Log.v(TAG, "scheduleSync:" + + " delay until " + delayUntil + + " run by " + runtimeMillis + + " flex " + beforeRuntimeMillis + + ", source " + source + + ", account " + account + + ", authority " + authority + + ", extras " + extras); + } + scheduleSyncOperation( + new SyncOperation(account.account, account.userId, reason, source, + authority, extras, runtimeMillis, beforeRuntimeMillis, + backoffTime, delayUntil, allowParallelSyncs)); + } + } + } + } + + /** + * Schedule sync based on local changes to a provider. Occurs within interval + * [LOCAL_SYNC_DELAY, 2*LOCAL_SYNC_DELAY]. + */ + public void scheduleLocalSync(Account account, int userId, int reason, String authority) { + final Bundle extras = new Bundle(); + extras.putBoolean(ContentResolver.SYNC_EXTRAS_UPLOAD, true); + scheduleSync(account, userId, reason, authority, extras, + LOCAL_SYNC_DELAY /* earliest run time */, + 2 * LOCAL_SYNC_DELAY /* latest sync time. */, + false /* onlyThoseWithUnkownSyncableState */); + } + + public SyncAdapterType[] getSyncAdapterTypes(int userId) { + final Collection<RegisteredServicesCache.ServiceInfo<SyncAdapterType>> serviceInfos; + serviceInfos = mSyncAdapters.getAllServices(userId); + SyncAdapterType[] types = new SyncAdapterType[serviceInfos.size()]; + int i = 0; + for (RegisteredServicesCache.ServiceInfo<SyncAdapterType> serviceInfo : serviceInfos) { + types[i] = serviceInfo.type; + ++i; + } + return types; + } + + private void sendSyncAlarmMessage() { + if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "sending MESSAGE_SYNC_ALARM"); + mSyncHandler.sendEmptyMessage(SyncHandler.MESSAGE_SYNC_ALARM); + } + + private void sendCheckAlarmsMessage() { + if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "sending MESSAGE_CHECK_ALARMS"); + mSyncHandler.removeMessages(SyncHandler.MESSAGE_CHECK_ALARMS); + mSyncHandler.sendEmptyMessage(SyncHandler.MESSAGE_CHECK_ALARMS); + } + + private void sendSyncFinishedOrCanceledMessage(ActiveSyncContext syncContext, + SyncResult syncResult) { + if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "sending MESSAGE_SYNC_FINISHED"); + Message msg = mSyncHandler.obtainMessage(); + msg.what = SyncHandler.MESSAGE_SYNC_FINISHED; + msg.obj = new SyncHandlerMessagePayload(syncContext, syncResult); + mSyncHandler.sendMessage(msg); + } + + private void sendCancelSyncsMessage(final Account account, final int userId, + final String authority) { + if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "sending MESSAGE_CANCEL"); + Message msg = mSyncHandler.obtainMessage(); + msg.what = SyncHandler.MESSAGE_CANCEL; + msg.obj = Pair.create(account, authority); + msg.arg1 = userId; + mSyncHandler.sendMessage(msg); + } + + class SyncHandlerMessagePayload { + public final ActiveSyncContext activeSyncContext; + public final SyncResult syncResult; + + SyncHandlerMessagePayload(ActiveSyncContext syncContext, SyncResult syncResult) { + this.activeSyncContext = syncContext; + this.syncResult = syncResult; + } + } + + class SyncAlarmIntentReceiver extends BroadcastReceiver { + @Override + public void onReceive(Context context, Intent intent) { + mHandleAlarmWakeLock.acquire(); + sendSyncAlarmMessage(); + } + } + + private void clearBackoffSetting(SyncOperation op) { + mSyncStorageEngine.setBackoff(op.account, op.userId, op.authority, + SyncStorageEngine.NOT_IN_BACKOFF_MODE, SyncStorageEngine.NOT_IN_BACKOFF_MODE); + synchronized (mSyncQueue) { + mSyncQueue.onBackoffChanged(op.account, op.userId, op.authority, 0); + } + } + + private void increaseBackoffSetting(SyncOperation op) { + // TODO: Use this function to align it to an already scheduled sync + // operation in the specified window + final long now = SystemClock.elapsedRealtime(); + + final Pair<Long, Long> previousSettings = + mSyncStorageEngine.getBackoff(op.account, op.userId, op.authority); + long newDelayInMs = -1; + if (previousSettings != null) { + // don't increase backoff before current backoff is expired. This will happen for op's + // with ignoreBackoff set. + if (now < previousSettings.first) { + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "Still in backoff, do not increase it. " + + "Remaining: " + ((previousSettings.first - now) / 1000) + " seconds."); + } + return; + } + // Subsequent delays are the double of the previous delay + newDelayInMs = previousSettings.second * 2; + } + if (newDelayInMs <= 0) { + // The initial delay is the jitterized INITIAL_SYNC_RETRY_TIME_IN_MS + newDelayInMs = jitterize(INITIAL_SYNC_RETRY_TIME_IN_MS, + (long)(INITIAL_SYNC_RETRY_TIME_IN_MS * 1.1)); + } + + // Cap the delay + long maxSyncRetryTimeInSeconds = Settings.Global.getLong(mContext.getContentResolver(), + Settings.Global.SYNC_MAX_RETRY_DELAY_IN_SECONDS, + DEFAULT_MAX_SYNC_RETRY_TIME_IN_SECONDS); + if (newDelayInMs > maxSyncRetryTimeInSeconds * 1000) { + newDelayInMs = maxSyncRetryTimeInSeconds * 1000; + } + + final long backoff = now + newDelayInMs; + + mSyncStorageEngine.setBackoff(op.account, op.userId, op.authority, + backoff, newDelayInMs); + + op.backoff = backoff; + op.updateEffectiveRunTime(); + + synchronized (mSyncQueue) { + mSyncQueue.onBackoffChanged(op.account, op.userId, op.authority, backoff); + } + } + + private void setDelayUntilTime(SyncOperation op, long delayUntilSeconds) { + final long delayUntil = delayUntilSeconds * 1000; + final long absoluteNow = System.currentTimeMillis(); + long newDelayUntilTime; + if (delayUntil > absoluteNow) { + newDelayUntilTime = SystemClock.elapsedRealtime() + (delayUntil - absoluteNow); + } else { + newDelayUntilTime = 0; + } + mSyncStorageEngine + .setDelayUntilTime(op.account, op.userId, op.authority, newDelayUntilTime); + synchronized (mSyncQueue) { + mSyncQueue.onDelayUntilTimeChanged(op.account, op.authority, newDelayUntilTime); + } + } + + /** + * Cancel the active sync if it matches the authority and account. + * @param account limit the cancelations to syncs with this account, if non-null + * @param authority limit the cancelations to syncs with this authority, if non-null + */ + public void cancelActiveSync(Account account, int userId, String authority) { + sendCancelSyncsMessage(account, userId, authority); + } + + /** + * Create and schedule a SyncOperation. + * + * @param syncOperation the SyncOperation to schedule + */ + public void scheduleSyncOperation(SyncOperation syncOperation) { + boolean queueChanged; + synchronized (mSyncQueue) { + queueChanged = mSyncQueue.add(syncOperation); + } + + if (queueChanged) { + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "scheduleSyncOperation: enqueued " + syncOperation); + } + sendCheckAlarmsMessage(); + } else { + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "scheduleSyncOperation: dropping duplicate sync operation " + + syncOperation); + } + } + } + + /** + * Remove scheduled sync operations. + * @param account limit the removals to operations with this account, if non-null + * @param authority limit the removals to operations with this authority, if non-null + */ + public void clearScheduledSyncOperations(Account account, int userId, String authority) { + synchronized (mSyncQueue) { + mSyncQueue.remove(account, userId, authority); + } + mSyncStorageEngine.setBackoff(account, userId, authority, + SyncStorageEngine.NOT_IN_BACKOFF_MODE, SyncStorageEngine.NOT_IN_BACKOFF_MODE); + } + + void maybeRescheduleSync(SyncResult syncResult, SyncOperation operation) { + boolean isLoggable = Log.isLoggable(TAG, Log.DEBUG); + if (isLoggable) { + Log.d(TAG, "encountered error(s) during the sync: " + syncResult + ", " + operation); + } + + operation = new SyncOperation(operation); + + // The SYNC_EXTRAS_IGNORE_BACKOFF only applies to the first attempt to sync a given + // request. Retries of the request will always honor the backoff, so clear the + // flag in case we retry this request. + if (operation.extras.getBoolean(ContentResolver.SYNC_EXTRAS_IGNORE_BACKOFF, false)) { + operation.extras.remove(ContentResolver.SYNC_EXTRAS_IGNORE_BACKOFF); + } + + // If this sync aborted because the internal sync loop retried too many times then + // don't reschedule. Otherwise we risk getting into a retry loop. + // If the operation succeeded to some extent then retry immediately. + // If this was a two-way sync then retry soft errors with an exponential backoff. + // If this was an upward sync then schedule a two-way sync immediately. + // Otherwise do not reschedule. + if (operation.extras.getBoolean(ContentResolver.SYNC_EXTRAS_DO_NOT_RETRY, false)) { + Log.d(TAG, "not retrying sync operation because SYNC_EXTRAS_DO_NOT_RETRY was specified " + + operation); + } else if (operation.extras.getBoolean(ContentResolver.SYNC_EXTRAS_UPLOAD, false) + && !syncResult.syncAlreadyInProgress) { + operation.extras.remove(ContentResolver.SYNC_EXTRAS_UPLOAD); + Log.d(TAG, "retrying sync operation as a two-way sync because an upload-only sync " + + "encountered an error: " + operation); + scheduleSyncOperation(operation); + } else if (syncResult.tooManyRetries) { + Log.d(TAG, "not retrying sync operation because it retried too many times: " + + operation); + } else if (syncResult.madeSomeProgress()) { + if (isLoggable) { + Log.d(TAG, "retrying sync operation because even though it had an error " + + "it achieved some success"); + } + scheduleSyncOperation(operation); + } else if (syncResult.syncAlreadyInProgress) { + if (isLoggable) { + Log.d(TAG, "retrying sync operation that failed because there was already a " + + "sync in progress: " + operation); + } + scheduleSyncOperation( + new SyncOperation( + operation.account, operation.userId, + operation.reason, + operation.syncSource, + operation.authority, operation.extras, + DELAY_RETRY_SYNC_IN_PROGRESS_IN_SECONDS * 1000, operation.flexTime, + operation.backoff, operation.delayUntil, operation.allowParallelSyncs)); + } else if (syncResult.hasSoftError()) { + if (isLoggable) { + Log.d(TAG, "retrying sync operation because it encountered a soft error: " + + operation); + } + scheduleSyncOperation(operation); + } else { + Log.d(TAG, "not retrying sync operation because the error is a hard error: " + + operation); + } + } + + private void onUserStarting(int userId) { + // Make sure that accounts we're about to use are valid + AccountManagerService.getSingleton().validateAccounts(userId); + + mSyncAdapters.invalidateCache(userId); + + updateRunningAccounts(); + + synchronized (mSyncQueue) { + mSyncQueue.addPendingOperations(userId); + } + + // Schedule sync for any accounts under started user + final Account[] accounts = AccountManagerService.getSingleton().getAccounts(userId); + for (Account account : accounts) { + scheduleSync(account, userId, SyncOperation.REASON_USER_START, null, null, + 0 /* no delay */, 0 /* No flex */, + true /* onlyThoseWithUnknownSyncableState */); + } + + sendCheckAlarmsMessage(); + } + + private void onUserStopping(int userId) { + updateRunningAccounts(); + + cancelActiveSync( + null /* any account */, + userId, + null /* any authority */); + } + + private void onUserRemoved(int userId) { + updateRunningAccounts(); + + // Clean up the storage engine database + mSyncStorageEngine.doDatabaseCleanup(new Account[0], userId); + synchronized (mSyncQueue) { + mSyncQueue.removeUser(userId); + } + } + + /** + * @hide + */ + class ActiveSyncContext extends ISyncContext.Stub + implements ServiceConnection, IBinder.DeathRecipient { + final SyncOperation mSyncOperation; + final long mHistoryRowId; + ISyncAdapter mSyncAdapter; + final long mStartTime; + long mTimeoutStartTime; + boolean mBound; + final PowerManager.WakeLock mSyncWakeLock; + final int mSyncAdapterUid; + SyncInfo mSyncInfo; + boolean mIsLinkedToDeath = false; + + /** + * Create an ActiveSyncContext for an impending sync and grab the wakelock for that + * sync adapter. Since this grabs the wakelock you need to be sure to call + * close() when you are done with this ActiveSyncContext, whether the sync succeeded + * or not. + * @param syncOperation the SyncOperation we are about to sync + * @param historyRowId the row in which to record the history info for this sync + * @param syncAdapterUid the UID of the application that contains the sync adapter + * for this sync. This is used to attribute the wakelock hold to that application. + */ + public ActiveSyncContext(SyncOperation syncOperation, long historyRowId, + int syncAdapterUid) { + super(); + mSyncAdapterUid = syncAdapterUid; + mSyncOperation = syncOperation; + mHistoryRowId = historyRowId; + mSyncAdapter = null; + mStartTime = SystemClock.elapsedRealtime(); + mTimeoutStartTime = mStartTime; + mSyncWakeLock = mSyncHandler.getSyncWakeLock( + mSyncOperation.account, mSyncOperation.authority); + mSyncWakeLock.setWorkSource(new WorkSource(syncAdapterUid)); + mSyncWakeLock.acquire(); + } + + public void sendHeartbeat() { + // heartbeats are no longer used + } + + public void onFinished(SyncResult result) { + if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "onFinished: " + this); + // include "this" in the message so that the handler can ignore it if this + // ActiveSyncContext is no longer the mActiveSyncContext at message handling + // time + sendSyncFinishedOrCanceledMessage(this, result); + } + + public void toString(StringBuilder sb) { + sb.append("startTime ").append(mStartTime) + .append(", mTimeoutStartTime ").append(mTimeoutStartTime) + .append(", mHistoryRowId ").append(mHistoryRowId) + .append(", syncOperation ").append(mSyncOperation); + } + + public void onServiceConnected(ComponentName name, IBinder service) { + Message msg = mSyncHandler.obtainMessage(); + msg.what = SyncHandler.MESSAGE_SERVICE_CONNECTED; + msg.obj = new ServiceConnectionData(this, ISyncAdapter.Stub.asInterface(service)); + mSyncHandler.sendMessage(msg); + } + + public void onServiceDisconnected(ComponentName name) { + Message msg = mSyncHandler.obtainMessage(); + msg.what = SyncHandler.MESSAGE_SERVICE_DISCONNECTED; + msg.obj = new ServiceConnectionData(this, null); + mSyncHandler.sendMessage(msg); + } + + boolean bindToSyncAdapter(RegisteredServicesCache.ServiceInfo info, int userId) { + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.d(TAG, "bindToSyncAdapter: " + info.componentName + ", connection " + this); + } + Intent intent = new Intent(); + intent.setAction("android.content.SyncAdapter"); + intent.setComponent(info.componentName); + intent.putExtra(Intent.EXTRA_CLIENT_LABEL, + com.android.internal.R.string.sync_binding_label); + intent.putExtra(Intent.EXTRA_CLIENT_INTENT, PendingIntent.getActivityAsUser( + mContext, 0, new Intent(Settings.ACTION_SYNC_SETTINGS), 0, + null, new UserHandle(userId))); + mBound = true; + final boolean bindResult = mContext.bindServiceAsUser(intent, this, + Context.BIND_AUTO_CREATE | Context.BIND_NOT_FOREGROUND + | Context.BIND_ALLOW_OOM_MANAGEMENT, + new UserHandle(mSyncOperation.userId)); + if (!bindResult) { + mBound = false; + } + return bindResult; + } + + /** + * Performs the required cleanup, which is the releasing of the wakelock and + * unbinding from the sync adapter (if actually bound). + */ + protected void close() { + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.d(TAG, "unBindFromSyncAdapter: connection " + this); + } + if (mBound) { + mBound = false; + mContext.unbindService(this); + } + mSyncWakeLock.release(); + mSyncWakeLock.setWorkSource(null); + } + + @Override + public String toString() { + StringBuilder sb = new StringBuilder(); + toString(sb); + return sb.toString(); + } + + @Override + public void binderDied() { + sendSyncFinishedOrCanceledMessage(this, null); + } + } + + protected void dump(FileDescriptor fd, PrintWriter pw) { + final IndentingPrintWriter ipw = new IndentingPrintWriter(pw, " "); + dumpSyncState(ipw); + dumpSyncHistory(ipw); + dumpSyncAdapters(ipw); + } + + static String formatTime(long time) { + Time tobj = new Time(); + tobj.set(time); + return tobj.format("%Y-%m-%d %H:%M:%S"); + } + + protected void dumpSyncState(PrintWriter pw) { + pw.print("data connected: "); pw.println(mDataConnectionIsConnected); + pw.print("auto sync: "); + List<UserInfo> users = getAllUsers(); + if (users != null) { + for (UserInfo user : users) { + pw.print("u" + user.id + "=" + + mSyncStorageEngine.getMasterSyncAutomatically(user.id) + " "); + } + pw.println(); + } + pw.print("memory low: "); pw.println(mStorageIsLow); + + final AccountAndUser[] accounts = AccountManagerService.getSingleton().getAllAccounts(); + + pw.print("accounts: "); + if (accounts != INITIAL_ACCOUNTS_ARRAY) { + pw.println(accounts.length); + } else { + pw.println("not known yet"); + } + final long now = SystemClock.elapsedRealtime(); + pw.print("now: "); pw.print(now); + pw.println(" (" + formatTime(System.currentTimeMillis()) + ")"); + pw.print("offset: "); pw.print(DateUtils.formatElapsedTime(mSyncRandomOffsetMillis/1000)); + pw.println(" (HH:MM:SS)"); + pw.print("uptime: "); pw.print(DateUtils.formatElapsedTime(now/1000)); + pw.println(" (HH:MM:SS)"); + pw.print("time spent syncing: "); + pw.print(DateUtils.formatElapsedTime( + mSyncHandler.mSyncTimeTracker.timeSpentSyncing() / 1000)); + pw.print(" (HH:MM:SS), sync "); + pw.print(mSyncHandler.mSyncTimeTracker.mLastWasSyncing ? "" : "not "); + pw.println("in progress"); + if (mSyncHandler.mAlarmScheduleTime != null) { + pw.print("next alarm time: "); pw.print(mSyncHandler.mAlarmScheduleTime); + pw.print(" ("); + pw.print(DateUtils.formatElapsedTime((mSyncHandler.mAlarmScheduleTime-now)/1000)); + pw.println(" (HH:MM:SS) from now)"); + } else { + pw.println("no alarm is scheduled (there had better not be any pending syncs)"); + } + + pw.print("notification info: "); + final StringBuilder sb = new StringBuilder(); + mSyncHandler.mSyncNotificationInfo.toString(sb); + pw.println(sb.toString()); + + pw.println(); + pw.println("Active Syncs: " + mActiveSyncContexts.size()); + final PackageManager pm = mContext.getPackageManager(); + for (SyncManager.ActiveSyncContext activeSyncContext : mActiveSyncContexts) { + final long durationInSeconds = (now - activeSyncContext.mStartTime) / 1000; + pw.print(" "); + pw.print(DateUtils.formatElapsedTime(durationInSeconds)); + pw.print(" - "); + pw.print(activeSyncContext.mSyncOperation.dump(pm, false)); + pw.println(); + } + + synchronized (mSyncQueue) { + sb.setLength(0); + mSyncQueue.dump(sb); + // Dump Pending Operations. + getSyncStorageEngine().dumpPendingOperations(sb); + } + + pw.println(); + pw.print(sb.toString()); + + // join the installed sync adapter with the accounts list and emit for everything + pw.println(); + pw.println("Sync Status"); + for (AccountAndUser account : accounts) { + pw.printf("Account %s u%d %s\n", + account.account.name, account.userId, account.account.type); + + pw.println("======================================================================="); + final PrintTable table = new PrintTable(13); + table.set(0, 0, + "Authority", // 0 + "Syncable", // 1 + "Enabled", // 2 + "Delay", // 3 + "Loc", // 4 + "Poll", // 5 + "Per", // 6 + "Serv", // 7 + "User", // 8 + "Tot", // 9 + "Time", // 10 + "Last Sync", // 11 + "Periodic" // 12 + ); + + final List<RegisteredServicesCache.ServiceInfo<SyncAdapterType>> sorted = + Lists.newArrayList(); + sorted.addAll(mSyncAdapters.getAllServices(account.userId)); + Collections.sort(sorted, + new Comparator<RegisteredServicesCache.ServiceInfo<SyncAdapterType>>() { + @Override + public int compare(RegisteredServicesCache.ServiceInfo<SyncAdapterType> lhs, + RegisteredServicesCache.ServiceInfo<SyncAdapterType> rhs) { + return lhs.type.authority.compareTo(rhs.type.authority); + } + }); + for (RegisteredServicesCache.ServiceInfo<SyncAdapterType> syncAdapterType : sorted) { + if (!syncAdapterType.type.accountType.equals(account.account.type)) { + continue; + } + int row = table.getNumRows(); + Pair<AuthorityInfo, SyncStatusInfo> syncAuthoritySyncStatus = + mSyncStorageEngine.getCopyOfAuthorityWithSyncStatus( + account.account, account.userId, syncAdapterType.type.authority); + SyncStorageEngine.AuthorityInfo settings = syncAuthoritySyncStatus.first; + SyncStatusInfo status = syncAuthoritySyncStatus.second; + + String authority = settings.authority; + if (authority.length() > 50) { + authority = authority.substring(authority.length() - 50); + } + table.set(row, 0, authority, settings.syncable, settings.enabled); + table.set(row, 4, + status.numSourceLocal, + status.numSourcePoll, + status.numSourcePeriodic, + status.numSourceServer, + status.numSourceUser, + status.numSyncs, + DateUtils.formatElapsedTime(status.totalElapsedTime / 1000)); + + + for (int i = 0; i < settings.periodicSyncs.size(); i++) { + final PeriodicSync sync = settings.periodicSyncs.get(i); + final String period = + String.format("[p:%d s, f: %d s]", sync.period, sync.flexTime); + final String extras = + sync.extras.size() > 0 ? + sync.extras.toString() : "Bundle[]"; + final String next = "Next sync: " + formatTime(status.getPeriodicSyncTime(i) + + sync.period * 1000); + table.set(row + i * 2, 12, period + " " + extras); + table.set(row + i * 2 + 1, 12, next); + } + + int row1 = row; + if (settings.delayUntil > now) { + table.set(row1++, 12, "D: " + (settings.delayUntil - now) / 1000); + if (settings.backoffTime > now) { + table.set(row1++, 12, "B: " + (settings.backoffTime - now) / 1000); + table.set(row1++, 12, settings.backoffDelay / 1000); + } + } + + if (status.lastSuccessTime != 0) { + table.set(row1++, 11, SyncStorageEngine.SOURCES[status.lastSuccessSource] + + " " + "SUCCESS"); + table.set(row1++, 11, formatTime(status.lastSuccessTime)); + } + if (status.lastFailureTime != 0) { + table.set(row1++, 11, SyncStorageEngine.SOURCES[status.lastFailureSource] + + " " + "FAILURE"); + table.set(row1++, 11, formatTime(status.lastFailureTime)); + //noinspection UnusedAssignment + table.set(row1++, 11, status.lastFailureMesg); + } + } + table.writeTo(pw); + } + } + + private String getLastFailureMessage(int code) { + switch (code) { + case ContentResolver.SYNC_ERROR_SYNC_ALREADY_IN_PROGRESS: + return "sync already in progress"; + + case ContentResolver.SYNC_ERROR_AUTHENTICATION: + return "authentication error"; + + case ContentResolver.SYNC_ERROR_IO: + return "I/O error"; + + case ContentResolver.SYNC_ERROR_PARSE: + return "parse error"; + + case ContentResolver.SYNC_ERROR_CONFLICT: + return "conflict error"; + + case ContentResolver.SYNC_ERROR_TOO_MANY_DELETIONS: + return "too many deletions error"; + + case ContentResolver.SYNC_ERROR_TOO_MANY_RETRIES: + return "too many retries error"; + + case ContentResolver.SYNC_ERROR_INTERNAL: + return "internal error"; + + default: + return "unknown"; + } + } + + private void dumpTimeSec(PrintWriter pw, long time) { + pw.print(time/1000); pw.print('.'); pw.print((time/100)%10); + pw.print('s'); + } + + private void dumpDayStatistic(PrintWriter pw, SyncStorageEngine.DayStats ds) { + pw.print("Success ("); pw.print(ds.successCount); + if (ds.successCount > 0) { + pw.print(" for "); dumpTimeSec(pw, ds.successTime); + pw.print(" avg="); dumpTimeSec(pw, ds.successTime/ds.successCount); + } + pw.print(") Failure ("); pw.print(ds.failureCount); + if (ds.failureCount > 0) { + pw.print(" for "); dumpTimeSec(pw, ds.failureTime); + pw.print(" avg="); dumpTimeSec(pw, ds.failureTime/ds.failureCount); + } + pw.println(")"); + } + + protected void dumpSyncHistory(PrintWriter pw) { + dumpRecentHistory(pw); + dumpDayStatistics(pw); + } + + private void dumpRecentHistory(PrintWriter pw) { + final ArrayList<SyncStorageEngine.SyncHistoryItem> items + = mSyncStorageEngine.getSyncHistory(); + if (items != null && items.size() > 0) { + final Map<String, AuthoritySyncStats> authorityMap = Maps.newHashMap(); + long totalElapsedTime = 0; + long totalTimes = 0; + final int N = items.size(); + + int maxAuthority = 0; + int maxAccount = 0; + for (SyncStorageEngine.SyncHistoryItem item : items) { + SyncStorageEngine.AuthorityInfo authority + = mSyncStorageEngine.getAuthority(item.authorityId); + final String authorityName; + final String accountKey; + if (authority != null) { + authorityName = authority.authority; + accountKey = authority.account.name + "/" + authority.account.type + + " u" + authority.userId; + } else { + authorityName = "Unknown"; + accountKey = "Unknown"; + } + + int length = authorityName.length(); + if (length > maxAuthority) { + maxAuthority = length; + } + length = accountKey.length(); + if (length > maxAccount) { + maxAccount = length; + } + + final long elapsedTime = item.elapsedTime; + totalElapsedTime += elapsedTime; + totalTimes++; + AuthoritySyncStats authoritySyncStats = authorityMap.get(authorityName); + if (authoritySyncStats == null) { + authoritySyncStats = new AuthoritySyncStats(authorityName); + authorityMap.put(authorityName, authoritySyncStats); + } + authoritySyncStats.elapsedTime += elapsedTime; + authoritySyncStats.times++; + final Map<String, AccountSyncStats> accountMap = authoritySyncStats.accountMap; + AccountSyncStats accountSyncStats = accountMap.get(accountKey); + if (accountSyncStats == null) { + accountSyncStats = new AccountSyncStats(accountKey); + accountMap.put(accountKey, accountSyncStats); + } + accountSyncStats.elapsedTime += elapsedTime; + accountSyncStats.times++; + + } + + if (totalElapsedTime > 0) { + pw.println(); + pw.printf("Detailed Statistics (Recent history): " + + "%d (# of times) %ds (sync time)\n", + totalTimes, totalElapsedTime / 1000); + + final List<AuthoritySyncStats> sortedAuthorities = + new ArrayList<AuthoritySyncStats>(authorityMap.values()); + Collections.sort(sortedAuthorities, new Comparator<AuthoritySyncStats>() { + @Override + public int compare(AuthoritySyncStats lhs, AuthoritySyncStats rhs) { + // reverse order + int compare = Integer.compare(rhs.times, lhs.times); + if (compare == 0) { + compare = Long.compare(rhs.elapsedTime, lhs.elapsedTime); + } + return compare; + } + }); + + final int maxLength = Math.max(maxAuthority, maxAccount + 3); + final int padLength = 2 + 2 + maxLength + 2 + 10 + 11; + final char chars[] = new char[padLength]; + Arrays.fill(chars, '-'); + final String separator = new String(chars); + + final String authorityFormat = + String.format(" %%-%ds: %%-9s %%-11s\n", maxLength + 2); + final String accountFormat = + String.format(" %%-%ds: %%-9s %%-11s\n", maxLength); + + pw.println(separator); + for (AuthoritySyncStats authoritySyncStats : sortedAuthorities) { + String name = authoritySyncStats.name; + long elapsedTime; + int times; + String timeStr; + String timesStr; + + elapsedTime = authoritySyncStats.elapsedTime; + times = authoritySyncStats.times; + timeStr = String.format("%ds/%d%%", + elapsedTime / 1000, + elapsedTime * 100 / totalElapsedTime); + timesStr = String.format("%d/%d%%", + times, + times * 100 / totalTimes); + pw.printf(authorityFormat, name, timesStr, timeStr); + + final List<AccountSyncStats> sortedAccounts = + new ArrayList<AccountSyncStats>( + authoritySyncStats.accountMap.values()); + Collections.sort(sortedAccounts, new Comparator<AccountSyncStats>() { + @Override + public int compare(AccountSyncStats lhs, AccountSyncStats rhs) { + // reverse order + int compare = Integer.compare(rhs.times, lhs.times); + if (compare == 0) { + compare = Long.compare(rhs.elapsedTime, lhs.elapsedTime); + } + return compare; + } + }); + for (AccountSyncStats stats: sortedAccounts) { + elapsedTime = stats.elapsedTime; + times = stats.times; + timeStr = String.format("%ds/%d%%", + elapsedTime / 1000, + elapsedTime * 100 / totalElapsedTime); + timesStr = String.format("%d/%d%%", + times, + times * 100 / totalTimes); + pw.printf(accountFormat, stats.name, timesStr, timeStr); + } + pw.println(separator); + } + } + + pw.println(); + pw.println("Recent Sync History"); + final String format = " %-" + maxAccount + "s %-" + maxAuthority + "s %s\n"; + final Map<String, Long> lastTimeMap = Maps.newHashMap(); + final PackageManager pm = mContext.getPackageManager(); + for (int i = 0; i < N; i++) { + SyncStorageEngine.SyncHistoryItem item = items.get(i); + SyncStorageEngine.AuthorityInfo authority + = mSyncStorageEngine.getAuthority(item.authorityId); + final String authorityName; + final String accountKey; + if (authority != null) { + authorityName = authority.authority; + accountKey = authority.account.name + "/" + authority.account.type + + " u" + authority.userId; + } else { + authorityName = "Unknown"; + accountKey = "Unknown"; + } + final long elapsedTime = item.elapsedTime; + final Time time = new Time(); + final long eventTime = item.eventTime; + time.set(eventTime); + + final String key = authorityName + "/" + accountKey; + final Long lastEventTime = lastTimeMap.get(key); + final String diffString; + if (lastEventTime == null) { + diffString = ""; + } else { + final long diff = (lastEventTime - eventTime) / 1000; + if (diff < 60) { + diffString = String.valueOf(diff); + } else if (diff < 3600) { + diffString = String.format("%02d:%02d", diff / 60, diff % 60); + } else { + final long sec = diff % 3600; + diffString = String.format("%02d:%02d:%02d", + diff / 3600, sec / 60, sec % 60); + } + } + lastTimeMap.put(key, eventTime); + + pw.printf(" #%-3d: %s %8s %5.1fs %8s", + i + 1, + formatTime(eventTime), + SyncStorageEngine.SOURCES[item.source], + ((float) elapsedTime) / 1000, + diffString); + pw.printf(format, accountKey, authorityName, + SyncOperation.reasonToString(pm, item.reason)); + + if (item.event != SyncStorageEngine.EVENT_STOP + || item.upstreamActivity != 0 + || item.downstreamActivity != 0) { + pw.printf(" event=%d upstreamActivity=%d downstreamActivity=%d\n", + item.event, + item.upstreamActivity, + item.downstreamActivity); + } + if (item.mesg != null + && !SyncStorageEngine.MESG_SUCCESS.equals(item.mesg)) { + pw.printf(" mesg=%s\n", item.mesg); + } + } + pw.println(); + pw.println("Recent Sync History Extras"); + for (int i = 0; i < N; i++) { + final SyncStorageEngine.SyncHistoryItem item = items.get(i); + final Bundle extras = item.extras; + if (extras == null || extras.size() == 0) { + continue; + } + final SyncStorageEngine.AuthorityInfo authority + = mSyncStorageEngine.getAuthority(item.authorityId); + final String authorityName; + final String accountKey; + if (authority != null) { + authorityName = authority.authority; + accountKey = authority.account.name + "/" + authority.account.type + + " u" + authority.userId; + } else { + authorityName = "Unknown"; + accountKey = "Unknown"; + } + final Time time = new Time(); + final long eventTime = item.eventTime; + time.set(eventTime); + + pw.printf(" #%-3d: %s %8s ", + i + 1, + formatTime(eventTime), + SyncStorageEngine.SOURCES[item.source]); + + pw.printf(format, accountKey, authorityName, extras); + } + } + } + + private void dumpDayStatistics(PrintWriter pw) { + SyncStorageEngine.DayStats dses[] = mSyncStorageEngine.getDayStatistics(); + if (dses != null && dses[0] != null) { + pw.println(); + pw.println("Sync Statistics"); + pw.print(" Today: "); dumpDayStatistic(pw, dses[0]); + int today = dses[0].day; + int i; + SyncStorageEngine.DayStats ds; + + // Print each day in the current week. + for (i=1; i<=6 && i < dses.length; i++) { + ds = dses[i]; + if (ds == null) break; + int delta = today-ds.day; + if (delta > 6) break; + + pw.print(" Day-"); pw.print(delta); pw.print(": "); + dumpDayStatistic(pw, ds); + } + + // Aggregate all following days into weeks and print totals. + int weekDay = today; + while (i < dses.length) { + SyncStorageEngine.DayStats aggr = null; + weekDay -= 7; + while (i < dses.length) { + ds = dses[i]; + if (ds == null) { + i = dses.length; + break; + } + int delta = weekDay-ds.day; + if (delta > 6) break; + i++; + + if (aggr == null) { + aggr = new SyncStorageEngine.DayStats(weekDay); + } + aggr.successCount += ds.successCount; + aggr.successTime += ds.successTime; + aggr.failureCount += ds.failureCount; + aggr.failureTime += ds.failureTime; + } + if (aggr != null) { + pw.print(" Week-"); pw.print((today-weekDay)/7); pw.print(": "); + dumpDayStatistic(pw, aggr); + } + } + } + } + + private void dumpSyncAdapters(IndentingPrintWriter pw) { + pw.println(); + final List<UserInfo> users = getAllUsers(); + if (users != null) { + for (UserInfo user : users) { + pw.println("Sync adapters for " + user + ":"); + pw.increaseIndent(); + for (RegisteredServicesCache.ServiceInfo<?> info : + mSyncAdapters.getAllServices(user.id)) { + pw.println(info); + } + pw.decreaseIndent(); + pw.println(); + } + } + } + + private static class AuthoritySyncStats { + String name; + long elapsedTime; + int times; + Map<String, AccountSyncStats> accountMap = Maps.newHashMap(); + + private AuthoritySyncStats(String name) { + this.name = name; + } + } + + private static class AccountSyncStats { + String name; + long elapsedTime; + int times; + + private AccountSyncStats(String name) { + this.name = name; + } + } + + /** + * A helper object to keep track of the time we have spent syncing since the last boot + */ + private class SyncTimeTracker { + /** True if a sync was in progress on the most recent call to update() */ + boolean mLastWasSyncing = false; + /** Used to track when lastWasSyncing was last set */ + long mWhenSyncStarted = 0; + /** The cumulative time we have spent syncing */ + private long mTimeSpentSyncing; + + /** Call to let the tracker know that the sync state may have changed */ + public synchronized void update() { + final boolean isSyncInProgress = !mActiveSyncContexts.isEmpty(); + if (isSyncInProgress == mLastWasSyncing) return; + final long now = SystemClock.elapsedRealtime(); + if (isSyncInProgress) { + mWhenSyncStarted = now; + } else { + mTimeSpentSyncing += now - mWhenSyncStarted; + } + mLastWasSyncing = isSyncInProgress; + } + + /** Get how long we have been syncing, in ms */ + public synchronized long timeSpentSyncing() { + if (!mLastWasSyncing) return mTimeSpentSyncing; + + final long now = SystemClock.elapsedRealtime(); + return mTimeSpentSyncing + (now - mWhenSyncStarted); + } + } + + class ServiceConnectionData { + public final ActiveSyncContext activeSyncContext; + public final ISyncAdapter syncAdapter; + ServiceConnectionData(ActiveSyncContext activeSyncContext, ISyncAdapter syncAdapter) { + this.activeSyncContext = activeSyncContext; + this.syncAdapter = syncAdapter; + } + } + + /** + * Handles SyncOperation Messages that are posted to the associated + * HandlerThread. + */ + class SyncHandler extends Handler { + // Messages that can be sent on mHandler + private static final int MESSAGE_SYNC_FINISHED = 1; + private static final int MESSAGE_SYNC_ALARM = 2; + private static final int MESSAGE_CHECK_ALARMS = 3; + private static final int MESSAGE_SERVICE_CONNECTED = 4; + private static final int MESSAGE_SERVICE_DISCONNECTED = 5; + private static final int MESSAGE_CANCEL = 6; + + public final SyncNotificationInfo mSyncNotificationInfo = new SyncNotificationInfo(); + private Long mAlarmScheduleTime = null; + public final SyncTimeTracker mSyncTimeTracker = new SyncTimeTracker(); + private final HashMap<Pair<Account, String>, PowerManager.WakeLock> mWakeLocks = + Maps.newHashMap(); + private List<Message> mBootQueue = new ArrayList<Message>(); + + public void onBootCompleted() { + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "Boot completed, clearing boot queue."); + } + doDatabaseCleanup(); + synchronized(this) { + // Dispatch any stashed messages. + for (Message message : mBootQueue) { + sendMessage(message); + } + mBootQueue = null; + mBootCompleted = true; + } + } + + private PowerManager.WakeLock getSyncWakeLock(Account account, String authority) { + final Pair<Account, String> wakeLockKey = Pair.create(account, authority); + PowerManager.WakeLock wakeLock = mWakeLocks.get(wakeLockKey); + if (wakeLock == null) { + final String name = SYNC_WAKE_LOCK_PREFIX + "/" + authority + "/" + account.type + + "/" + account.name; + wakeLock = mPowerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, name); + wakeLock.setReferenceCounted(false); + mWakeLocks.put(wakeLockKey, wakeLock); + } + return wakeLock; + } + + /** + * Stash any messages that come to the handler before boot is complete. + * {@link #onBootCompleted()} will disable this and dispatch all the messages collected. + * @param msg Message to dispatch at a later point. + * @return true if a message was enqueued, false otherwise. This is to avoid losing the + * message if we manage to acquire the lock but by the time we do boot has completed. + */ + private boolean tryEnqueueMessageUntilReadyToRun(Message msg) { + synchronized (this) { + if (!mBootCompleted) { + // Need to copy the message bc looper will recycle it. + mBootQueue.add(Message.obtain(msg)); + return true; + } + return false; + } + } + + /** + * Used to keep track of whether a sync notification is active and who it is for. + */ + class SyncNotificationInfo { + // true iff the notification manager has been asked to send the notification + public boolean isActive = false; + + // Set when we transition from not running a sync to running a sync, and cleared on + // the opposite transition. + public Long startTime = null; + + public void toString(StringBuilder sb) { + sb.append("isActive ").append(isActive).append(", startTime ").append(startTime); + } + + @Override + public String toString() { + StringBuilder sb = new StringBuilder(); + toString(sb); + return sb.toString(); + } + } + + public SyncHandler(Looper looper) { + super(looper); + } + + @Override + public void handleMessage(Message msg) { + if (tryEnqueueMessageUntilReadyToRun(msg)) { + return; + } + + long earliestFuturePollTime = Long.MAX_VALUE; + long nextPendingSyncTime = Long.MAX_VALUE; + // Setting the value here instead of a method because we want the dumpsys logs + // to have the most recent value used. + try { + mDataConnectionIsConnected = readDataConnectionState(); + mSyncManagerWakeLock.acquire(); + // Always do this first so that we be sure that any periodic syncs that + // are ready to run have been converted into pending syncs. This allows the + // logic that considers the next steps to take based on the set of pending syncs + // to also take into account the periodic syncs. + earliestFuturePollTime = scheduleReadyPeriodicSyncs(); + switch (msg.what) { + case SyncHandler.MESSAGE_CANCEL: { + Pair<Account, String> payload = (Pair<Account, String>) msg.obj; + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.d(TAG, "handleSyncHandlerMessage: MESSAGE_SERVICE_CANCEL: " + + payload.first + ", " + payload.second); + } + cancelActiveSyncLocked(payload.first, msg.arg1, payload.second); + nextPendingSyncTime = maybeStartNextSyncLocked(); + break; + } + + case SyncHandler.MESSAGE_SYNC_FINISHED: + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "handleSyncHandlerMessage: MESSAGE_SYNC_FINISHED"); + } + SyncHandlerMessagePayload payload = (SyncHandlerMessagePayload)msg.obj; + if (!isSyncStillActive(payload.activeSyncContext)) { + Log.d(TAG, "handleSyncHandlerMessage: dropping since the " + + "sync is no longer active: " + + payload.activeSyncContext); + break; + } + runSyncFinishedOrCanceledLocked(payload.syncResult, payload.activeSyncContext); + + // since a sync just finished check if it is time to start a new sync + nextPendingSyncTime = maybeStartNextSyncLocked(); + break; + + case SyncHandler.MESSAGE_SERVICE_CONNECTED: { + ServiceConnectionData msgData = (ServiceConnectionData)msg.obj; + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.d(TAG, "handleSyncHandlerMessage: MESSAGE_SERVICE_CONNECTED: " + + msgData.activeSyncContext); + } + // check that this isn't an old message + if (isSyncStillActive(msgData.activeSyncContext)) { + runBoundToSyncAdapter(msgData.activeSyncContext, msgData.syncAdapter); + } + break; + } + + case SyncHandler.MESSAGE_SERVICE_DISCONNECTED: { + final ActiveSyncContext currentSyncContext = + ((ServiceConnectionData)msg.obj).activeSyncContext; + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.d(TAG, "handleSyncHandlerMessage: MESSAGE_SERVICE_DISCONNECTED: " + + currentSyncContext); + } + // check that this isn't an old message + if (isSyncStillActive(currentSyncContext)) { + // cancel the sync if we have a syncadapter, which means one is + // outstanding + if (currentSyncContext.mSyncAdapter != null) { + try { + currentSyncContext.mSyncAdapter.cancelSync(currentSyncContext); + } catch (RemoteException e) { + // we don't need to retry this in this case + } + } + + // pretend that the sync failed with an IOException, + // which is a soft error + SyncResult syncResult = new SyncResult(); + syncResult.stats.numIoExceptions++; + runSyncFinishedOrCanceledLocked(syncResult, currentSyncContext); + + // since a sync just finished check if it is time to start a new sync + nextPendingSyncTime = maybeStartNextSyncLocked(); + } + + break; + } + + case SyncHandler.MESSAGE_SYNC_ALARM: { + boolean isLoggable = Log.isLoggable(TAG, Log.VERBOSE); + if (isLoggable) { + Log.v(TAG, "handleSyncHandlerMessage: MESSAGE_SYNC_ALARM"); + } + mAlarmScheduleTime = null; + try { + nextPendingSyncTime = maybeStartNextSyncLocked(); + } finally { + mHandleAlarmWakeLock.release(); + } + break; + } + + case SyncHandler.MESSAGE_CHECK_ALARMS: + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "handleSyncHandlerMessage: MESSAGE_CHECK_ALARMS"); + } + nextPendingSyncTime = maybeStartNextSyncLocked(); + break; + } + } finally { + manageSyncNotificationLocked(); + manageSyncAlarmLocked(earliestFuturePollTime, nextPendingSyncTime); + mSyncTimeTracker.update(); + mSyncManagerWakeLock.release(); + } + } + + /** + * Turn any periodic sync operations that are ready to run into pending sync operations. + * @return the desired start time of the earliest future periodic sync operation, + * in milliseconds since boot + */ + private long scheduleReadyPeriodicSyncs() { + final boolean isLoggable = Log.isLoggable(TAG, Log.VERBOSE); + if (isLoggable) { + Log.v(TAG, "scheduleReadyPeriodicSyncs"); + } + final boolean backgroundDataUsageAllowed = + getConnectivityManager().getBackgroundDataSetting(); + long earliestFuturePollTime = Long.MAX_VALUE; + if (!backgroundDataUsageAllowed) { + return earliestFuturePollTime; + } + + AccountAndUser[] accounts = mRunningAccounts; + + final long nowAbsolute = System.currentTimeMillis(); + final long shiftedNowAbsolute = (0 < nowAbsolute - mSyncRandomOffsetMillis) + ? (nowAbsolute - mSyncRandomOffsetMillis) : 0; + + ArrayList<Pair<AuthorityInfo, SyncStatusInfo>> infos = mSyncStorageEngine + .getCopyOfAllAuthoritiesWithSyncStatus(); + for (Pair<AuthorityInfo, SyncStatusInfo> info : infos) { + final AuthorityInfo authorityInfo = info.first; + final SyncStatusInfo status = info.second; + if (TextUtils.isEmpty(authorityInfo.authority)) { + Log.e(TAG, "Got an empty provider string. Skipping: " + authorityInfo); + continue; + } + // skip the sync if the account of this operation no longer exists + if (!containsAccountAndUser( + accounts, authorityInfo.account, authorityInfo.userId)) { + continue; + } + + if (!mSyncStorageEngine.getMasterSyncAutomatically(authorityInfo.userId) + || !mSyncStorageEngine.getSyncAutomatically( + authorityInfo.account, authorityInfo.userId, + authorityInfo.authority)) { + continue; + } + + if (getIsSyncable( + authorityInfo.account, authorityInfo.userId, authorityInfo.authority) + == 0) { + continue; + } + + for (int i = 0, N = authorityInfo.periodicSyncs.size(); i < N; i++) { + final PeriodicSync sync = authorityInfo.periodicSyncs.get(i); + final Bundle extras = sync.extras; + final long periodInMillis = sync.period * 1000; + final long flexInMillis = sync.flexTime * 1000; + // Skip if the period is invalid. + if (periodInMillis <= 0) { + continue; + } + // Find when this periodic sync was last scheduled to run. + final long lastPollTimeAbsolute = status.getPeriodicSyncTime(i); + long remainingMillis + = periodInMillis - (shiftedNowAbsolute % periodInMillis); + long timeSinceLastRunMillis + = (nowAbsolute - lastPollTimeAbsolute); + // Schedule this periodic sync to run early if it's close enough to its next + // runtime, and far enough from its last run time. + // If we are early, there will still be time remaining in this period. + boolean runEarly = remainingMillis <= flexInMillis + && timeSinceLastRunMillis > periodInMillis - flexInMillis; + if (isLoggable) { + Log.v(TAG, "sync: " + i + " for " + authorityInfo.authority + "." + + " period: " + (periodInMillis) + + " flex: " + (flexInMillis) + + " remaining: " + (remainingMillis) + + " time_since_last: " + timeSinceLastRunMillis + + " last poll absol: " + lastPollTimeAbsolute + + " shifted now: " + shiftedNowAbsolute + + " run_early: " + runEarly); + } + /* + * Sync scheduling strategy: Set the next periodic sync + * based on a random offset (in seconds). Also sync right + * now if any of the following cases hold and mark it as + * having been scheduled + * Case 1: This sync is ready to run now. + * Case 2: If the lastPollTimeAbsolute is in the + * future, sync now and reinitialize. This can happen for + * example if the user changed the time, synced and changed + * back. + * Case 3: If we failed to sync at the last scheduled + * time. + * Case 4: This sync is close enough to the time that we can schedule it. + */ + if (runEarly // Case 4 + || remainingMillis == periodInMillis // Case 1 + || lastPollTimeAbsolute > nowAbsolute // Case 2 + || timeSinceLastRunMillis >= periodInMillis) { // Case 3 + // Sync now + + final Pair<Long, Long> backoff = mSyncStorageEngine.getBackoff( + authorityInfo.account, authorityInfo.userId, + authorityInfo.authority); + final RegisteredServicesCache.ServiceInfo<SyncAdapterType> syncAdapterInfo; + syncAdapterInfo = mSyncAdapters.getServiceInfo( + SyncAdapterType.newKey( + authorityInfo.authority, authorityInfo.account.type), + authorityInfo.userId); + if (syncAdapterInfo == null) { + continue; + } + mSyncStorageEngine.setPeriodicSyncTime(authorityInfo.ident, + authorityInfo.periodicSyncs.get(i), nowAbsolute); + scheduleSyncOperation( + new SyncOperation(authorityInfo.account, authorityInfo.userId, + SyncOperation.REASON_PERIODIC, + SyncStorageEngine.SOURCE_PERIODIC, + authorityInfo.authority, extras, + 0 /* runtime */, 0 /* flex */, + backoff != null ? backoff.first : 0, + mSyncStorageEngine.getDelayUntilTime( + authorityInfo.account, authorityInfo.userId, + authorityInfo.authority), + syncAdapterInfo.type.allowParallelSyncs())); + + } + // Compute when this periodic sync should next run. + long nextPollTimeAbsolute; + if (runEarly) { + // Add the time remaining so we don't get out of phase. + nextPollTimeAbsolute = nowAbsolute + periodInMillis + remainingMillis; + } else { + nextPollTimeAbsolute = nowAbsolute + remainingMillis; + } + if (nextPollTimeAbsolute < earliestFuturePollTime) { + earliestFuturePollTime = nextPollTimeAbsolute; + } + } + } + + if (earliestFuturePollTime == Long.MAX_VALUE) { + return Long.MAX_VALUE; + } + + // convert absolute time to elapsed time + return SystemClock.elapsedRealtime() + + ((earliestFuturePollTime < nowAbsolute) ? + 0 : (earliestFuturePollTime - nowAbsolute)); + } + + private long maybeStartNextSyncLocked() { + final boolean isLoggable = Log.isLoggable(TAG, Log.VERBOSE); + if (isLoggable) Log.v(TAG, "maybeStartNextSync"); + + // If we aren't ready to run (e.g. the data connection is down), get out. + if (!mDataConnectionIsConnected) { + if (isLoggable) { + Log.v(TAG, "maybeStartNextSync: no data connection, skipping"); + } + return Long.MAX_VALUE; + } + + if (mStorageIsLow) { + if (isLoggable) { + Log.v(TAG, "maybeStartNextSync: memory low, skipping"); + } + return Long.MAX_VALUE; + } + + // If the accounts aren't known yet then we aren't ready to run. We will be kicked + // when the account lookup request does complete. + AccountAndUser[] accounts = mRunningAccounts; + if (accounts == INITIAL_ACCOUNTS_ARRAY) { + if (isLoggable) { + Log.v(TAG, "maybeStartNextSync: accounts not known, skipping"); + } + return Long.MAX_VALUE; + } + + // Otherwise consume SyncOperations from the head of the SyncQueue until one is + // found that is runnable (not disabled, etc). If that one is ready to run then + // start it, otherwise just get out. + final boolean backgroundDataUsageAllowed = + getConnectivityManager().getBackgroundDataSetting(); + + final long now = SystemClock.elapsedRealtime(); + + // will be set to the next time that a sync should be considered for running + long nextReadyToRunTime = Long.MAX_VALUE; + + // order the sync queue, dropping syncs that are not allowed + ArrayList<SyncOperation> operations = new ArrayList<SyncOperation>(); + synchronized (mSyncQueue) { + if (isLoggable) { + Log.v(TAG, "build the operation array, syncQueue size is " + + mSyncQueue.getOperations().size()); + } + final Iterator<SyncOperation> operationIterator = + mSyncQueue.getOperations().iterator(); + + final ActivityManager activityManager + = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE); + final Set<Integer> removedUsers = Sets.newHashSet(); + while (operationIterator.hasNext()) { + final SyncOperation op = operationIterator.next(); + + // Drop the sync if the account of this operation no longer exists. + if (!containsAccountAndUser(accounts, op.account, op.userId)) { + operationIterator.remove(); + mSyncStorageEngine.deleteFromPending(op.pendingOperation); + if (isLoggable) { + Log.v(TAG, " Dropping sync operation: account doesn't exist."); + } + continue; + } + + // Drop this sync request if it isn't syncable. + int syncableState = getIsSyncable( + op.account, op.userId, op.authority); + if (syncableState == 0) { + operationIterator.remove(); + mSyncStorageEngine.deleteFromPending(op.pendingOperation); + if (isLoggable) { + Log.v(TAG, " Dropping sync operation: isSyncable == 0."); + } + continue; + } + + // If the user is not running, drop the request. + if (!activityManager.isUserRunning(op.userId)) { + final UserInfo userInfo = mUserManager.getUserInfo(op.userId); + if (userInfo == null) { + removedUsers.add(op.userId); + } + if (isLoggable) { + Log.v(TAG, " Dropping sync operation: user not running."); + } + continue; + } + + // If the next run time is in the future, even given the flexible scheduling, + // return the time. + if (op.effectiveRunTime - op.flexTime > now) { + if (nextReadyToRunTime > op.effectiveRunTime) { + nextReadyToRunTime = op.effectiveRunTime; + } + if (isLoggable) { + Log.v(TAG, " Dropping sync operation: Sync too far in future."); + } + continue; + } + + // If the op isn't allowed on metered networks and we're on one, drop it. + if (getConnectivityManager().isActiveNetworkMetered() + && op.isMeteredDisallowed()) { + operationIterator.remove(); + mSyncStorageEngine.deleteFromPending(op.pendingOperation); + continue; + } + + // TODO: change this behaviour for non-registered syncs. + final RegisteredServicesCache.ServiceInfo<SyncAdapterType> syncAdapterInfo; + syncAdapterInfo = mSyncAdapters.getServiceInfo( + SyncAdapterType.newKey(op.authority, op.account.type), op.userId); + + // only proceed if network is connected for requesting UID + final boolean uidNetworkConnected; + if (syncAdapterInfo != null) { + final NetworkInfo networkInfo = getConnectivityManager() + .getActiveNetworkInfoForUid(syncAdapterInfo.uid); + uidNetworkConnected = networkInfo != null && networkInfo.isConnected(); + } else { + uidNetworkConnected = false; + } + + // skip the sync if it isn't manual, and auto sync or + // background data usage is disabled or network is + // disconnected for the target UID. + if (!op.extras.getBoolean(ContentResolver.SYNC_EXTRAS_IGNORE_SETTINGS, false) + && (syncableState > 0) + && (!mSyncStorageEngine.getMasterSyncAutomatically(op.userId) + || !backgroundDataUsageAllowed + || !uidNetworkConnected + || !mSyncStorageEngine.getSyncAutomatically( + op.account, op.userId, op.authority))) { + operationIterator.remove(); + mSyncStorageEngine.deleteFromPending(op.pendingOperation); + continue; + } + + operations.add(op); + } + for (Integer user : removedUsers) { + // if it's still removed + if (mUserManager.getUserInfo(user) == null) { + onUserRemoved(user); + } + } + } + + // find the next operation to dispatch, if one is ready + // iterate from the top, keep issuing (while potentially canceling existing syncs) + // until the quotas are filled. + // once the quotas are filled iterate once more to find when the next one would be + // (also considering pre-emption reasons). + if (isLoggable) Log.v(TAG, "sort the candidate operations, size " + operations.size()); + Collections.sort(operations); + if (isLoggable) Log.v(TAG, "dispatch all ready sync operations"); + for (int i = 0, N = operations.size(); i < N; i++) { + final SyncOperation candidate = operations.get(i); + final boolean candidateIsInitialization = candidate.isInitialization(); + + int numInit = 0; + int numRegular = 0; + ActiveSyncContext conflict = null; + ActiveSyncContext longRunning = null; + ActiveSyncContext toReschedule = null; + ActiveSyncContext oldestNonExpeditedRegular = null; + + for (ActiveSyncContext activeSyncContext : mActiveSyncContexts) { + final SyncOperation activeOp = activeSyncContext.mSyncOperation; + if (activeOp.isInitialization()) { + numInit++; + } else { + numRegular++; + if (!activeOp.isExpedited()) { + if (oldestNonExpeditedRegular == null + || (oldestNonExpeditedRegular.mStartTime + > activeSyncContext.mStartTime)) { + oldestNonExpeditedRegular = activeSyncContext; + } + } + } + if (activeOp.account.type.equals(candidate.account.type) + && activeOp.authority.equals(candidate.authority) + && activeOp.userId == candidate.userId + && (!activeOp.allowParallelSyncs + || activeOp.account.name.equals(candidate.account.name))) { + conflict = activeSyncContext; + // don't break out since we want to do a full count of the varieties + } else { + if (candidateIsInitialization == activeOp.isInitialization() + && activeSyncContext.mStartTime + MAX_TIME_PER_SYNC < now) { + longRunning = activeSyncContext; + // don't break out since we want to do a full count of the varieties + } + } + } + + if (isLoggable) { + Log.v(TAG, "candidate " + (i + 1) + " of " + N + ": " + candidate); + Log.v(TAG, " numActiveInit=" + numInit + ", numActiveRegular=" + numRegular); + Log.v(TAG, " longRunning: " + longRunning); + Log.v(TAG, " conflict: " + conflict); + Log.v(TAG, " oldestNonExpeditedRegular: " + oldestNonExpeditedRegular); + } + + final boolean roomAvailable = candidateIsInitialization + ? numInit < MAX_SIMULTANEOUS_INITIALIZATION_SYNCS + : numRegular < MAX_SIMULTANEOUS_REGULAR_SYNCS; + + if (conflict != null) { + if (candidateIsInitialization && !conflict.mSyncOperation.isInitialization() + && numInit < MAX_SIMULTANEOUS_INITIALIZATION_SYNCS) { + toReschedule = conflict; + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "canceling and rescheduling sync since an initialization " + + "takes higher priority, " + conflict); + } + } else if (candidate.expedited && !conflict.mSyncOperation.expedited + && (candidateIsInitialization + == conflict.mSyncOperation.isInitialization())) { + toReschedule = conflict; + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "canceling and rescheduling sync since an expedited " + + "takes higher priority, " + conflict); + } + } else { + continue; + } + } else if (roomAvailable) { + // dispatch candidate + } else if (candidate.isExpedited() && oldestNonExpeditedRegular != null + && !candidateIsInitialization) { + // We found an active, non-expedited regular sync. We also know that the + // candidate doesn't conflict with this active sync since conflict + // is null. Reschedule the active sync and start the candidate. + toReschedule = oldestNonExpeditedRegular; + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "canceling and rescheduling sync since an expedited is ready to run, " + + oldestNonExpeditedRegular); + } + } else if (longRunning != null + && (candidateIsInitialization + == longRunning.mSyncOperation.isInitialization())) { + // We found an active, long-running sync. Reschedule the active + // sync and start the candidate. + toReschedule = longRunning; + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "canceling and rescheduling sync since it ran roo long, " + + longRunning); + } + } else { + // we were unable to find or make space to run this candidate, go on to + // the next one + continue; + } + + if (toReschedule != null) { + runSyncFinishedOrCanceledLocked(null, toReschedule); + scheduleSyncOperation(toReschedule.mSyncOperation); + } + synchronized (mSyncQueue) { + mSyncQueue.remove(candidate); + } + dispatchSyncOperation(candidate); + } + + return nextReadyToRunTime; + } + + private boolean dispatchSyncOperation(SyncOperation op) { + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "dispatchSyncOperation: we are going to sync " + op); + Log.v(TAG, "num active syncs: " + mActiveSyncContexts.size()); + for (ActiveSyncContext syncContext : mActiveSyncContexts) { + Log.v(TAG, syncContext.toString()); + } + } + + // connect to the sync adapter + SyncAdapterType syncAdapterType = SyncAdapterType.newKey(op.authority, op.account.type); + final RegisteredServicesCache.ServiceInfo<SyncAdapterType> syncAdapterInfo; + syncAdapterInfo = mSyncAdapters.getServiceInfo(syncAdapterType, op.userId); + if (syncAdapterInfo == null) { + Log.d(TAG, "can't find a sync adapter for " + syncAdapterType + + ", removing settings for it"); + mSyncStorageEngine.removeAuthority(op.account, op.userId, op.authority); + return false; + } + + ActiveSyncContext activeSyncContext = + new ActiveSyncContext(op, insertStartSyncEvent(op), syncAdapterInfo.uid); + activeSyncContext.mSyncInfo = mSyncStorageEngine.addActiveSync(activeSyncContext); + mActiveSyncContexts.add(activeSyncContext); + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "dispatchSyncOperation: starting " + activeSyncContext); + } + if (!activeSyncContext.bindToSyncAdapter(syncAdapterInfo, op.userId)) { + Log.e(TAG, "Bind attempt failed to " + syncAdapterInfo); + closeActiveSyncContext(activeSyncContext); + return false; + } + + return true; + } + + private void runBoundToSyncAdapter(final ActiveSyncContext activeSyncContext, + ISyncAdapter syncAdapter) { + activeSyncContext.mSyncAdapter = syncAdapter; + final SyncOperation syncOperation = activeSyncContext.mSyncOperation; + try { + activeSyncContext.mIsLinkedToDeath = true; + syncAdapter.asBinder().linkToDeath(activeSyncContext, 0); + + syncAdapter.startSync(activeSyncContext, syncOperation.authority, + syncOperation.account, syncOperation.extras); + } catch (RemoteException remoteExc) { + Log.d(TAG, "maybeStartNextSync: caught a RemoteException, rescheduling", remoteExc); + closeActiveSyncContext(activeSyncContext); + increaseBackoffSetting(syncOperation); + scheduleSyncOperation(new SyncOperation(syncOperation)); + } catch (RuntimeException exc) { + closeActiveSyncContext(activeSyncContext); + Log.e(TAG, "Caught RuntimeException while starting the sync " + syncOperation, exc); + } + } + + private void cancelActiveSyncLocked(Account account, int userId, String authority) { + ArrayList<ActiveSyncContext> activeSyncs = + new ArrayList<ActiveSyncContext>(mActiveSyncContexts); + for (ActiveSyncContext activeSyncContext : activeSyncs) { + if (activeSyncContext != null) { + // if an account was specified then only cancel the sync if it matches + if (account != null) { + if (!account.equals(activeSyncContext.mSyncOperation.account)) { + continue; + } + } + // if an authority was specified then only cancel the sync if it matches + if (authority != null) { + if (!authority.equals(activeSyncContext.mSyncOperation.authority)) { + continue; + } + } + // check if the userid matches + if (userId != UserHandle.USER_ALL + && userId != activeSyncContext.mSyncOperation.userId) { + continue; + } + runSyncFinishedOrCanceledLocked(null /* no result since this is a cancel */, + activeSyncContext); + } + } + } + + private void runSyncFinishedOrCanceledLocked(SyncResult syncResult, + ActiveSyncContext activeSyncContext) { + boolean isLoggable = Log.isLoggable(TAG, Log.VERBOSE); + + if (activeSyncContext.mIsLinkedToDeath) { + activeSyncContext.mSyncAdapter.asBinder().unlinkToDeath(activeSyncContext, 0); + activeSyncContext.mIsLinkedToDeath = false; + } + closeActiveSyncContext(activeSyncContext); + + final SyncOperation syncOperation = activeSyncContext.mSyncOperation; + + final long elapsedTime = SystemClock.elapsedRealtime() - activeSyncContext.mStartTime; + + String historyMessage; + int downstreamActivity; + int upstreamActivity; + if (syncResult != null) { + if (isLoggable) { + Log.v(TAG, "runSyncFinishedOrCanceled [finished]: " + + syncOperation + ", result " + syncResult); + } + + if (!syncResult.hasError()) { + historyMessage = SyncStorageEngine.MESG_SUCCESS; + // TODO: set these correctly when the SyncResult is extended to include it + downstreamActivity = 0; + upstreamActivity = 0; + clearBackoffSetting(syncOperation); + } else { + Log.d(TAG, "failed sync operation " + syncOperation + ", " + syncResult); + // the operation failed so increase the backoff time + if (!syncResult.syncAlreadyInProgress) { + increaseBackoffSetting(syncOperation); + } + // reschedule the sync if so indicated by the syncResult + maybeRescheduleSync(syncResult, syncOperation); + historyMessage = ContentResolver.syncErrorToString( + syncResultToErrorNumber(syncResult)); + // TODO: set these correctly when the SyncResult is extended to include it + downstreamActivity = 0; + upstreamActivity = 0; + } + + setDelayUntilTime(syncOperation, syncResult.delayUntil); + } else { + if (isLoggable) { + Log.v(TAG, "runSyncFinishedOrCanceled [canceled]: " + syncOperation); + } + if (activeSyncContext.mSyncAdapter != null) { + try { + activeSyncContext.mSyncAdapter.cancelSync(activeSyncContext); + } catch (RemoteException e) { + // we don't need to retry this in this case + } + } + historyMessage = SyncStorageEngine.MESG_CANCELED; + downstreamActivity = 0; + upstreamActivity = 0; + } + + stopSyncEvent(activeSyncContext.mHistoryRowId, syncOperation, historyMessage, + upstreamActivity, downstreamActivity, elapsedTime); + + if (syncResult != null && syncResult.tooManyDeletions) { + installHandleTooManyDeletesNotification(syncOperation.account, + syncOperation.authority, syncResult.stats.numDeletes, + syncOperation.userId); + } else { + mNotificationMgr.cancelAsUser(null, + syncOperation.account.hashCode() ^ syncOperation.authority.hashCode(), + new UserHandle(syncOperation.userId)); + } + + if (syncResult != null && syncResult.fullSyncRequested) { + scheduleSyncOperation( + new SyncOperation(syncOperation.account, syncOperation.userId, + syncOperation.reason, + syncOperation.syncSource, syncOperation.authority, new Bundle(), + 0 /* delay */, 0 /* flex */, + syncOperation.backoff, syncOperation.delayUntil, + syncOperation.allowParallelSyncs)); + } + // no need to schedule an alarm, as that will be done by our caller. + } + + private void closeActiveSyncContext(ActiveSyncContext activeSyncContext) { + activeSyncContext.close(); + mActiveSyncContexts.remove(activeSyncContext); + mSyncStorageEngine.removeActiveSync(activeSyncContext.mSyncInfo, + activeSyncContext.mSyncOperation.userId); + } + + /** + * Convert the error-containing SyncResult into the Sync.History error number. Since + * the SyncResult may indicate multiple errors at once, this method just returns the + * most "serious" error. + * @param syncResult the SyncResult from which to read + * @return the most "serious" error set in the SyncResult + * @throws IllegalStateException if the SyncResult does not indicate any errors. + * If SyncResult.error() is true then it is safe to call this. + */ + private int syncResultToErrorNumber(SyncResult syncResult) { + if (syncResult.syncAlreadyInProgress) + return ContentResolver.SYNC_ERROR_SYNC_ALREADY_IN_PROGRESS; + if (syncResult.stats.numAuthExceptions > 0) + return ContentResolver.SYNC_ERROR_AUTHENTICATION; + if (syncResult.stats.numIoExceptions > 0) + return ContentResolver.SYNC_ERROR_IO; + if (syncResult.stats.numParseExceptions > 0) + return ContentResolver.SYNC_ERROR_PARSE; + if (syncResult.stats.numConflictDetectedExceptions > 0) + return ContentResolver.SYNC_ERROR_CONFLICT; + if (syncResult.tooManyDeletions) + return ContentResolver.SYNC_ERROR_TOO_MANY_DELETIONS; + if (syncResult.tooManyRetries) + return ContentResolver.SYNC_ERROR_TOO_MANY_RETRIES; + if (syncResult.databaseError) + return ContentResolver.SYNC_ERROR_INTERNAL; + throw new IllegalStateException("we are not in an error state, " + syncResult); + } + + private void manageSyncNotificationLocked() { + boolean shouldCancel; + boolean shouldInstall; + + if (mActiveSyncContexts.isEmpty()) { + mSyncNotificationInfo.startTime = null; + + // we aren't syncing. if the notification is active then remember that we need + // to cancel it and then clear out the info + shouldCancel = mSyncNotificationInfo.isActive; + shouldInstall = false; + } else { + // we are syncing + final long now = SystemClock.elapsedRealtime(); + if (mSyncNotificationInfo.startTime == null) { + mSyncNotificationInfo.startTime = now; + } + + // there are three cases: + // - the notification is up: do nothing + // - the notification is not up but it isn't time yet: don't install + // - the notification is not up and it is time: need to install + + if (mSyncNotificationInfo.isActive) { + shouldInstall = shouldCancel = false; + } else { + // it isn't currently up, so there is nothing to cancel + shouldCancel = false; + + final boolean timeToShowNotification = + now > mSyncNotificationInfo.startTime + SYNC_NOTIFICATION_DELAY; + if (timeToShowNotification) { + shouldInstall = true; + } else { + // show the notification immediately if this is a manual sync + shouldInstall = false; + for (ActiveSyncContext activeSyncContext : mActiveSyncContexts) { + final boolean manualSync = activeSyncContext.mSyncOperation.extras + .getBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, false); + if (manualSync) { + shouldInstall = true; + break; + } + } + } + } + } + + if (shouldCancel && !shouldInstall) { + mNeedSyncActiveNotification = false; + sendSyncStateIntent(); + mSyncNotificationInfo.isActive = false; + } + + if (shouldInstall) { + mNeedSyncActiveNotification = true; + sendSyncStateIntent(); + mSyncNotificationInfo.isActive = true; + } + } + + private void manageSyncAlarmLocked(long nextPeriodicEventElapsedTime, + long nextPendingEventElapsedTime) { + // in each of these cases the sync loop will be kicked, which will cause this + // method to be called again + if (!mDataConnectionIsConnected) return; + if (mStorageIsLow) return; + + // When the status bar notification should be raised + final long notificationTime = + (!mSyncHandler.mSyncNotificationInfo.isActive + && mSyncHandler.mSyncNotificationInfo.startTime != null) + ? mSyncHandler.mSyncNotificationInfo.startTime + SYNC_NOTIFICATION_DELAY + : Long.MAX_VALUE; + + // When we should consider canceling an active sync + long earliestTimeoutTime = Long.MAX_VALUE; + for (ActiveSyncContext currentSyncContext : mActiveSyncContexts) { + final long currentSyncTimeoutTime = + currentSyncContext.mTimeoutStartTime + MAX_TIME_PER_SYNC; + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "manageSyncAlarm: active sync, mTimeoutStartTime + MAX is " + + currentSyncTimeoutTime); + } + if (earliestTimeoutTime > currentSyncTimeoutTime) { + earliestTimeoutTime = currentSyncTimeoutTime; + } + } + + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "manageSyncAlarm: notificationTime is " + notificationTime); + } + + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "manageSyncAlarm: earliestTimeoutTime is " + earliestTimeoutTime); + } + + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "manageSyncAlarm: nextPeriodicEventElapsedTime is " + + nextPeriodicEventElapsedTime); + } + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "manageSyncAlarm: nextPendingEventElapsedTime is " + + nextPendingEventElapsedTime); + } + + long alarmTime = Math.min(notificationTime, earliestTimeoutTime); + alarmTime = Math.min(alarmTime, nextPeriodicEventElapsedTime); + alarmTime = Math.min(alarmTime, nextPendingEventElapsedTime); + + // Bound the alarm time. + final long now = SystemClock.elapsedRealtime(); + if (alarmTime < now + SYNC_ALARM_TIMEOUT_MIN) { + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "manageSyncAlarm: the alarmTime is too small, " + + alarmTime + ", setting to " + (now + SYNC_ALARM_TIMEOUT_MIN)); + } + alarmTime = now + SYNC_ALARM_TIMEOUT_MIN; + } else if (alarmTime > now + SYNC_ALARM_TIMEOUT_MAX) { + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "manageSyncAlarm: the alarmTime is too large, " + + alarmTime + ", setting to " + (now + SYNC_ALARM_TIMEOUT_MIN)); + } + alarmTime = now + SYNC_ALARM_TIMEOUT_MAX; + } + + // determine if we need to set or cancel the alarm + boolean shouldSet = false; + boolean shouldCancel = false; + final boolean alarmIsActive = (mAlarmScheduleTime != null) && (now < mAlarmScheduleTime); + final boolean needAlarm = alarmTime != Long.MAX_VALUE; + if (needAlarm) { + // Need the alarm if + // - it's currently not set + // - if the alarm is set in the past. + if (!alarmIsActive || alarmTime < mAlarmScheduleTime) { + shouldSet = true; + } + } else { + shouldCancel = alarmIsActive; + } + + // Set or cancel the alarm as directed. + ensureAlarmService(); + if (shouldSet) { + if (Log.isLoggable(TAG, Log.VERBOSE)) { + Log.v(TAG, "requesting that the alarm manager wake us up at elapsed time " + + alarmTime + ", now is " + now + ", " + ((alarmTime - now) / 1000) + + " secs from now"); + } + mAlarmScheduleTime = alarmTime; + mAlarmService.setExact(AlarmManager.ELAPSED_REALTIME_WAKEUP, alarmTime, + mSyncAlarmIntent); + } else if (shouldCancel) { + mAlarmScheduleTime = null; + mAlarmService.cancel(mSyncAlarmIntent); + } + } + + private void sendSyncStateIntent() { + Intent syncStateIntent = new Intent(Intent.ACTION_SYNC_STATE_CHANGED); + syncStateIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); + syncStateIntent.putExtra("active", mNeedSyncActiveNotification); + syncStateIntent.putExtra("failing", false); + mContext.sendBroadcastAsUser(syncStateIntent, UserHandle.OWNER); + } + + private void installHandleTooManyDeletesNotification(Account account, String authority, + long numDeletes, int userId) { + if (mNotificationMgr == null) return; + + final ProviderInfo providerInfo = mContext.getPackageManager().resolveContentProvider( + authority, 0 /* flags */); + if (providerInfo == null) { + return; + } + CharSequence authorityName = providerInfo.loadLabel(mContext.getPackageManager()); + + Intent clickIntent = new Intent(mContext, SyncActivityTooManyDeletes.class); + clickIntent.putExtra("account", account); + clickIntent.putExtra("authority", authority); + clickIntent.putExtra("provider", authorityName.toString()); + clickIntent.putExtra("numDeletes", numDeletes); + + if (!isActivityAvailable(clickIntent)) { + Log.w(TAG, "No activity found to handle too many deletes."); + return; + } + + final PendingIntent pendingIntent = PendingIntent + .getActivityAsUser(mContext, 0, clickIntent, + PendingIntent.FLAG_CANCEL_CURRENT, null, new UserHandle(userId)); + + CharSequence tooManyDeletesDescFormat = mContext.getResources().getText( + R.string.contentServiceTooManyDeletesNotificationDesc); + + Notification notification = + new Notification(R.drawable.stat_notify_sync_error, + mContext.getString(R.string.contentServiceSync), + System.currentTimeMillis()); + notification.setLatestEventInfo(mContext, + mContext.getString(R.string.contentServiceSyncNotificationTitle), + String.format(tooManyDeletesDescFormat.toString(), authorityName), + pendingIntent); + notification.flags |= Notification.FLAG_ONGOING_EVENT; + mNotificationMgr.notifyAsUser(null, account.hashCode() ^ authority.hashCode(), + notification, new UserHandle(userId)); + } + + /** + * Checks whether an activity exists on the system image for the given intent. + * + * @param intent The intent for an activity. + * @return Whether or not an activity exists. + */ + private boolean isActivityAvailable(Intent intent) { + PackageManager pm = mContext.getPackageManager(); + List<ResolveInfo> list = pm.queryIntentActivities(intent, 0); + int listSize = list.size(); + for (int i = 0; i < listSize; i++) { + ResolveInfo resolveInfo = list.get(i); + if ((resolveInfo.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) + != 0) { + return true; + } + } + + return false; + } + + public long insertStartSyncEvent(SyncOperation syncOperation) { + final int source = syncOperation.syncSource; + final long now = System.currentTimeMillis(); + + EventLog.writeEvent(2720, syncOperation.authority, + SyncStorageEngine.EVENT_START, source, + syncOperation.account.name.hashCode()); + + return mSyncStorageEngine.insertStartSyncEvent( + syncOperation.account, syncOperation.userId, syncOperation.reason, + syncOperation.authority, + now, source, syncOperation.isInitialization(), syncOperation.extras + ); + } + + public void stopSyncEvent(long rowId, SyncOperation syncOperation, String resultMessage, + int upstreamActivity, int downstreamActivity, long elapsedTime) { + EventLog.writeEvent(2720, syncOperation.authority, + SyncStorageEngine.EVENT_STOP, syncOperation.syncSource, + syncOperation.account.name.hashCode()); + + mSyncStorageEngine.stopSyncEvent(rowId, elapsedTime, + resultMessage, downstreamActivity, upstreamActivity); + } + } + + private boolean isSyncStillActive(ActiveSyncContext activeSyncContext) { + for (ActiveSyncContext sync : mActiveSyncContexts) { + if (sync == activeSyncContext) { + return true; + } + } + return false; + } + + static class PrintTable { + private ArrayList<Object[]> mTable = Lists.newArrayList(); + private final int mCols; + + PrintTable(int cols) { + mCols = cols; + } + + void set(int row, int col, Object... values) { + if (col + values.length > mCols) { + throw new IndexOutOfBoundsException("Table only has " + mCols + + " columns. can't set " + values.length + " at column " + col); + } + for (int i = mTable.size(); i <= row; i++) { + final Object[] list = new Object[mCols]; + mTable.add(list); + for (int j = 0; j < mCols; j++) { + list[j] = ""; + } + } + System.arraycopy(values, 0, mTable.get(row), col, values.length); + } + + void writeTo(PrintWriter out) { + final String[] formats = new String[mCols]; + int totalLength = 0; + for (int col = 0; col < mCols; ++col) { + int maxLength = 0; + for (Object[] row : mTable) { + final int length = row[col].toString().length(); + if (length > maxLength) { + maxLength = length; + } + } + totalLength += maxLength; + formats[col] = String.format("%%-%ds", maxLength); + } + printRow(out, formats, mTable.get(0)); + totalLength += (mCols - 1) * 2; + for (int i = 0; i < totalLength; ++i) { + out.print("-"); + } + out.println(); + for (int i = 1, mTableSize = mTable.size(); i < mTableSize; i++) { + Object[] row = mTable.get(i); + printRow(out, formats, row); + } + } + + private void printRow(PrintWriter out, String[] formats, Object[] row) { + for (int j = 0, rowLength = row.length; j < rowLength; j++) { + out.printf(String.format(formats[j], row[j].toString())); + out.print(" "); + } + out.println(); + } + + public int getNumRows() { + return mTable.size(); + } + } +} |