/*
* 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 android.content;
import com.android.internal.app.ThemeUtils;
import android.accounts.Account;
import android.accounts.AccountAndUser;
import android.accounts.AccountManager;
import android.accounts.AccountManagerService;
import android.app.ActivityManager;
import android.app.AlarmManager;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.SyncStorageEngine.OnSyncRequestListener;
import android.content.pm.ApplicationInfo;
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.HandlerThread;
import android.os.IBinder;
import android.os.Looper;
import android.os.Message;
import android.os.PowerManager;
import android.os.Process;
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.util.EventLog;
import android.util.Log;
import android.util.Pair;
import android.util.Slog;
import com.android.internal.R;
import com.android.internal.annotations.GuardedBy;
import com.android.internal.util.IndentingPrintWriter;
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.util.ArrayList;
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.isLargeRAM();
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 Context mUiContext;
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() {
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() {
public void onReceive(Context context, Intent intent) {
mSyncHandler.onBootCompleted();
}
};
private BroadcastReceiver mThemeChangeReceiver = new BroadcastReceiver() {
public void onReceive(Context context, Intent intent) {
mUiContext = null;
}
};
private BroadcastReceiver mBackgroundDataSettingChanged = new BroadcastReceiver() {
public void onReceive(Context context, Intent intent) {
if (getConnectivityManager().getBackgroundDataSetting()) {
scheduleSync(null /* account */, UserHandle.USER_ALL, null /* authority */,
new Bundle(), 0 /* delay */,
false /* onlyThoseWithUnknownSyncableState */);
}
}
};
private BroadcastReceiver mAccountsUpdatedReceiver = new BroadcastReceiver() {
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, null, null, 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() {
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");
}
mSyncStorageEngine.clearAllBackoffs(mSyncQueue);
}
sendCheckAlarmsMessage();
}
}
};
private boolean readDataConnectionState() {
NetworkInfo networkInfo = getConnectivityManager().getActiveNetworkInfo();
return (networkInfo != null) && networkInfo.isConnected();
}
private BroadcastReceiver mShutdownIntentReceiver =
new BroadcastReceiver() {
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() {
public void onSyncRequest(Account account, int userId, String authority,
Bundle extras) {
scheduleSync(account, userId, authority, extras, 0, false);
}
});
mSyncAdapters = new SyncAdaptersCache(mContext);
mSyncQueue = new SyncQueue(mSyncStorageEngine, mSyncAdapters);
HandlerThread syncThread = new HandlerThread("SyncHandlerThread",
Process.THREAD_PRIORITY_BACKGROUND);
syncThread.start();
mSyncHandler = new SyncHandler(syncThread.getLooper());
mSyncAdapters.setListener(new RegisteredServicesCacheListener<SyncAdapterType>() {
@Override
public void onServiceChanged(SyncAdapterType type, int userId, boolean removed) {
if (!removed) {
scheduleSync(null, UserHandle.USER_ALL, type.authority, null, 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);
ThemeUtils.registerThemeChangeReceiver(mContext, mThemeChangeReceiver);
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() {
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;
}
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 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 delay how many milliseconds in the future to wait before performing this
* @param onlyThoseWithUnkownSyncableState
*/
public void scheduleSync(Account requestedAccount, int userId, String requestedAuthority,
Bundle extras, long delay, boolean onlyThoseWithUnkownSyncableState) {
boolean isLoggable = Log.isLoggable(TAG, Log.VERBOSE);
final boolean backgroundDataUsageAllowed = !mBootCompleted ||
getConnectivityManager().getBackgroundDataSetting();
if (extras == null) extras = new Bundle();
Boolean expedited = extras.getBoolean(ContentResolver.SYNC_EXTRAS_EXPEDITED, false);
if (expedited) {
delay = -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 = mSyncStorageEngine.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) {
Bundle newExtras = new Bundle();
newExtras.putBoolean(ContentResolver.SYNC_EXTRAS_INITIALIZE, true);
if (isLoggable) {
Log.v(TAG, "scheduleSync:"
+ " delay " + delay
+ ", source " + source
+ ", account " + account
+ ", authority " + authority
+ ", extras " + newExtras);
}
scheduleSyncOperation(
new SyncOperation(account.account, account.userId, source, authority,
newExtras, 0, backoffTime, delayUntil, allowParallelSyncs));
}
if (!onlyThoseWithUnkownSyncableState) {
if (isLoggable) {
Log.v(TAG, "scheduleSync:"
+ " delay " + delay
+ ", source " + source
+ ", account " + account
+ ", authority " + authority
+ ", extras " + extras);
}
scheduleSyncOperation(
new SyncOperation(account.account, account.userId, source, authority,
extras, delay, backoffTime, delayUntil, allowParallelSyncs));
}
}
}
}
public void scheduleLocalSync(Account account, int userId, String authority) {
final Bundle extras = new Bundle();
extras.putBoolean(ContentResolver.SYNC_EXTRAS_UPLOAD, true);
scheduleSync(account, userId, authority, extras, LOCAL_SYNC_DELAY,
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 {
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.syncSource,
operation.authority, operation.extras,
DELAY_RETRY_SYNC_IN_PROGRESS_IN_SECONDS * 1000,
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, null, null, 0 /* no delay */,
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);
}
}
private Context getUiContext() {
if (mUiContext == null) {
mUiContext = ThemeUtils.createUiContext(mContext);
}
return mUiContext != null ? mUiContext : mContext;
}
/**
* @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.bindService(intent, this,
Context.BIND_AUTO_CREATE | Context.BIND_NOT_FOREGROUND
| Context.BIND_ALLOW_OOM_MANAGEMENT,
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());
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(false));
pw.println();
}
synchronized (mSyncQueue) {
sb.setLength(0);
mSyncQueue.dump(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.print(" Account "); pw.print(account.account.name);
pw.print(" u"); pw.print(account.userId);
pw.print(" "); pw.print(account.account.type);
pw.println(":");
for (RegisteredServicesCache.ServiceInfo<SyncAdapterType> syncAdapterType :
mSyncAdapters.getAllServices(account.userId)) {
if (!syncAdapterType.type.accountType.equals(account.account.type)) {
continue;
}
SyncStorageEngine.AuthorityInfo settings =
mSyncStorageEngine.getOrCreateAuthority(
account.account, account.userId, syncAdapterType.type.authority);
SyncStatusInfo status = mSyncStorageEngine.getOrCreateSyncStatus(settings);
pw.print(" "); pw.print(settings.authority);
pw.println(":");
pw.print(" settings:");
pw.print(" " + (settings.syncable > 0
? "syncable"
: (settings.syncable == 0 ? "not syncable" : "not initialized")));
pw.print(", " + (settings.enabled ? "enabled" : "disabled"));
if (settings.delayUntil > now) {
pw.print(", delay for "
+ ((settings.delayUntil - now) / 1000) + " sec");
}
if (settings.backoffTime > now) {
pw.print(", backoff for "
+ ((settings.backoffTime - now) / 1000) + " sec");
}
if (settings.backoffDelay > 0) {
pw.print(", the backoff increment is " + settings.backoffDelay / 1000
+ " sec");
}
pw.println();
for (int periodicIndex = 0;
periodicIndex < settings.periodicSyncs.size();
periodicIndex++) {
Pair<Bundle, Long> info = settings.periodicSyncs.get(periodicIndex);
long lastPeriodicTime = status.getPeriodicSyncTime(periodicIndex);
long nextPeriodicTime = lastPeriodicTime + info.second * 1000;
pw.println(" periodic period=" + info.second
+ ", extras=" + info.first
+ ", next=" + formatTime(nextPeriodicTime));
}
pw.print(" count: local="); pw.print(status.numSourceLocal);
pw.print(" poll="); pw.print(status.numSourcePoll);
pw.print(" periodic="); pw.print(status.numSourcePeriodic);
pw.print(" server="); pw.print(status.numSourceServer);
pw.print(" user="); pw.print(status.numSourceUser);
pw.print(" total="); pw.print(status.numSyncs);
pw.println();
pw.print(" total duration: ");
pw.println(DateUtils.formatElapsedTime(status.totalElapsedTime/1000));
if (status.lastSuccessTime != 0) {
pw.print(" SUCCESS: source=");
pw.print(SyncStorageEngine.SOURCES[status.lastSuccessSource]);
pw.print(" time=");
pw.println(formatTime(status.lastSuccessTime));
}
if (status.lastFailureTime != 0) {
pw.print(" FAILURE: source=");
pw.print(SyncStorageEngine.SOURCES[
status.lastFailureSource]);
pw.print(" initialTime=");
pw.print(formatTime(status.initialFailureTime));
pw.print(" lastTime=");
pw.println(formatTime(status.lastFailureTime));
int errCode = status.getLastFailureMesgAsInt(0);
pw.print(" message: "); pw.println(
getLastFailureMessage(errCode) + " (" + errCode + ")");
}
}
}
}
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 %s\n";
final Map<String, Long> lastTimeMap = Maps.newHashMap();
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);
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);
}
}
}
}
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 volatile CountDownLatch mReadyToRunLatch = new CountDownLatch(1);
public void onBootCompleted() {
mBootCompleted = true;
doDatabaseCleanup();
if (mReadyToRunLatch != null) {
mReadyToRunLatch.countDown();
}
}
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;
wakeLock = mPowerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, name);
wakeLock.setReferenceCounted(false);
mWakeLocks.put(wakeLockKey, wakeLock);
}
return wakeLock;
}
private void waitUntilReadyToRun() {
CountDownLatch latch = mReadyToRunLatch;
if (latch != null) {
while (true) {
try {
latch.await();
mReadyToRunLatch = null;
return;
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
}
}
}
/**
* 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);
}
public void handleMessage(Message msg) {
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 {
waitUntilReadyToRun();
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 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<SyncStorageEngine.AuthorityInfo> infos = mSyncStorageEngine.getAuthorities();
for (SyncStorageEngine.AuthorityInfo info : infos) {
// skip the sync if the account of this operation no longer exists
if (!containsAccountAndUser(accounts, info.account, info.userId)) {
continue;
}
if (!mSyncStorageEngine.getMasterSyncAutomatically(info.userId)
|| !mSyncStorageEngine.getSyncAutomatically(info.account, info.userId,
info.authority)) {
continue;
}
if (mSyncStorageEngine.getIsSyncable(info.account, info.userId, info.authority)
== 0) {
continue;
}
SyncStatusInfo status = mSyncStorageEngine.getOrCreateSyncStatus(info);
for (int i = 0, N = info.periodicSyncs.size(); i < N; i++) {
final Bundle extras = info.periodicSyncs.get(i).first;
final Long periodInMillis = info.periodicSyncs.get(i).second * 1000;
// find when this periodic sync was last scheduled to run
final long lastPollTimeAbsolute = status.getPeriodicSyncTime(i);
long remainingMillis
= periodInMillis - (shiftedNowAbsolute % periodInMillis);
/*
* 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
*/
if (remainingMillis == periodInMillis // Case 1
|| lastPollTimeAbsolute > nowAbsolute // Case 2
|| (nowAbsolute - lastPollTimeAbsolute
>= periodInMillis)) { // Case 3
// Sync now
final Pair<Long, Long> backoff = mSyncStorageEngine.getBackoff(
info.account, info.userId, info.authority);
final RegisteredServicesCache.ServiceInfo<SyncAdapterType> syncAdapterInfo;
syncAdapterInfo = mSyncAdapters.getServiceInfo(
SyncAdapterType.newKey(info.authority, info.account.type),
info.userId);
if (syncAdapterInfo == null) {
continue;
}
scheduleSyncOperation(
new SyncOperation(info.account, info.userId,
SyncStorageEngine.SOURCE_PERIODIC,
info.authority, extras, 0 /* delay */,
backoff != null ? backoff.first : 0,
mSyncStorageEngine.getDelayUntilTime(
info.account, info.userId, info.authority),
syncAdapterInfo.type.allowParallelSyncs()));
status.setPeriodicSyncTime(i, nowAbsolute);
}
// Compute when this periodic sync should next run
final long nextPollTimeAbsolute = nowAbsolute + remainingMillis;
// remember this time if it is earlier than earliestFuturePollTime
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);
continue;
}
// drop this sync request if it isn't syncable
int syncableState = mSyncStorageEngine.getIsSyncable(
op.account, op.userId, op.authority);
if (syncableState == 0) {
operationIterator.remove();
mSyncStorageEngine.deleteFromPending(op.pendingOperation);
continue;
}
// if the user in not running, drop the request
if (!activityManager.isUserRunning(op.userId)) {
final UserInfo userInfo = mUserManager.getUserInfo(op.userId);
if (userInfo == null) {
removedUsers.add(op.userId);
}
continue;
}
// if the next run time is in the future, meaning there are no syncs ready
// to run, return the time
if (op.effectiveRunTime > now) {
if (nextReadyToRunTime > op.effectiveRunTime) {
nextReadyToRunTime = op.effectiveRunTime;
}
continue;
}
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 cancelling 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 = Integer.toString(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.syncSource, syncOperation.authority, new Bundle(), 0,
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;
final boolean needAlarm = alarmTime != Long.MAX_VALUE;
if (needAlarm) {
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.set(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(getUiContext(),
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.authority,
now, source, syncOperation.isInitialization());
}
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;
}
}