| /* |
| * Copyright (C) 2006 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; |
| |
| import android.app.Activity; |
| import android.app.ActivityManagerNative; |
| import android.app.AlarmManager; |
| import android.app.IAlarmManager; |
| import android.app.PendingIntent; |
| import android.content.BroadcastReceiver; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.pm.PackageManager; |
| import android.net.Uri; |
| import android.os.Binder; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.Message; |
| import android.os.PowerManager; |
| import android.os.SystemClock; |
| import android.os.SystemProperties; |
| import android.os.UserHandle; |
| import android.os.WorkSource; |
| import android.text.TextUtils; |
| import android.util.ArrayMap; |
| import android.util.Pair; |
| import android.util.Slog; |
| import android.util.SparseArray; |
| import android.util.TimeUtils; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| import java.text.SimpleDateFormat; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Calendar; |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.Date; |
| import java.util.LinkedList; |
| import java.util.TimeZone; |
| |
| import static android.app.AlarmManager.RTC_WAKEUP; |
| import static android.app.AlarmManager.RTC; |
| import static android.app.AlarmManager.ELAPSED_REALTIME_WAKEUP; |
| import static android.app.AlarmManager.ELAPSED_REALTIME; |
| |
| import com.android.internal.util.LocalLog; |
| |
| class AlarmManagerService extends SystemService { |
| // The threshold for how long an alarm can be late before we print a |
| // warning message. The time duration is in milliseconds. |
| private static final long LATE_ALARM_THRESHOLD = 10 * 1000; |
| |
| private static final int RTC_WAKEUP_MASK = 1 << RTC_WAKEUP; |
| private static final int RTC_MASK = 1 << RTC; |
| private static final int ELAPSED_REALTIME_WAKEUP_MASK = 1 << ELAPSED_REALTIME_WAKEUP; |
| private static final int ELAPSED_REALTIME_MASK = 1 << ELAPSED_REALTIME; |
| static final int TIME_CHANGED_MASK = 1 << 16; |
| static final int IS_WAKEUP_MASK = RTC_WAKEUP_MASK|ELAPSED_REALTIME_WAKEUP_MASK; |
| |
| // Mask for testing whether a given alarm type is wakeup vs non-wakeup |
| static final int TYPE_NONWAKEUP_MASK = 0x1; // low bit => non-wakeup |
| |
| static final String TAG = "AlarmManager"; |
| static final String ClockReceiver_TAG = "ClockReceiver"; |
| static final boolean localLOGV = false; |
| static final boolean DEBUG_BATCH = localLOGV || false; |
| static final boolean DEBUG_VALIDATE = localLOGV || false; |
| static final int ALARM_EVENT = 1; |
| static final String TIMEZONE_PROPERTY = "persist.sys.timezone"; |
| |
| static final Intent mBackgroundIntent |
| = new Intent().addFlags(Intent.FLAG_FROM_BACKGROUND); |
| static final IncreasingTimeOrder sIncreasingTimeOrder = new IncreasingTimeOrder(); |
| |
| static final boolean WAKEUP_STATS = false; |
| |
| final LocalLog mLog = new LocalLog(TAG); |
| |
| final Object mLock = new Object(); |
| |
| long mNativeData; |
| private long mNextWakeup; |
| private long mNextNonWakeup; |
| int mBroadcastRefCount = 0; |
| PowerManager.WakeLock mWakeLock; |
| ArrayList<InFlight> mInFlight = new ArrayList<InFlight>(); |
| final AlarmHandler mHandler = new AlarmHandler(); |
| ClockReceiver mClockReceiver; |
| private UninstallReceiver mUninstallReceiver; |
| final ResultReceiver mResultReceiver = new ResultReceiver(); |
| PendingIntent mTimeTickSender; |
| PendingIntent mDateChangeSender; |
| |
| class WakeupEvent { |
| public long when; |
| public int uid; |
| public String action; |
| |
| public WakeupEvent(long theTime, int theUid, String theAction) { |
| when = theTime; |
| uid = theUid; |
| action = theAction; |
| } |
| } |
| |
| final LinkedList<WakeupEvent> mRecentWakeups = new LinkedList<WakeupEvent>(); |
| final long RECENT_WAKEUP_PERIOD = 1000L * 60 * 60 * 24; // one day |
| |
| static final class Batch { |
| long start; // These endpoints are always in ELAPSED |
| long end; |
| boolean standalone; // certain "batches" don't participate in coalescing |
| |
| final ArrayList<Alarm> alarms = new ArrayList<Alarm>(); |
| |
| Batch() { |
| start = 0; |
| end = Long.MAX_VALUE; |
| } |
| |
| Batch(Alarm seed) { |
| start = seed.whenElapsed; |
| end = seed.maxWhen; |
| alarms.add(seed); |
| } |
| |
| int size() { |
| return alarms.size(); |
| } |
| |
| Alarm get(int index) { |
| return alarms.get(index); |
| } |
| |
| boolean canHold(long whenElapsed, long maxWhen) { |
| return (end >= whenElapsed) && (start <= maxWhen); |
| } |
| |
| boolean add(Alarm alarm) { |
| boolean newStart = false; |
| // narrows the batch if necessary; presumes that canHold(alarm) is true |
| int index = Collections.binarySearch(alarms, alarm, sIncreasingTimeOrder); |
| if (index < 0) { |
| index = 0 - index - 1; |
| } |
| alarms.add(index, alarm); |
| if (DEBUG_BATCH) { |
| Slog.v(TAG, "Adding " + alarm + " to " + this); |
| } |
| if (alarm.whenElapsed > start) { |
| start = alarm.whenElapsed; |
| newStart = true; |
| } |
| if (alarm.maxWhen < end) { |
| end = alarm.maxWhen; |
| } |
| |
| if (DEBUG_BATCH) { |
| Slog.v(TAG, " => now " + this); |
| } |
| return newStart; |
| } |
| |
| boolean remove(final PendingIntent operation) { |
| boolean didRemove = false; |
| long newStart = 0; // recalculate endpoints as we go |
| long newEnd = Long.MAX_VALUE; |
| for (int i = 0; i < alarms.size(); ) { |
| Alarm alarm = alarms.get(i); |
| if (alarm.operation.equals(operation)) { |
| alarms.remove(i); |
| didRemove = true; |
| } else { |
| if (alarm.whenElapsed > newStart) { |
| newStart = alarm.whenElapsed; |
| } |
| if (alarm.maxWhen < newEnd) { |
| newEnd = alarm.maxWhen; |
| } |
| i++; |
| } |
| } |
| if (didRemove) { |
| // commit the new batch bounds |
| start = newStart; |
| end = newEnd; |
| } |
| return didRemove; |
| } |
| |
| boolean remove(final String packageName) { |
| boolean didRemove = false; |
| long newStart = 0; // recalculate endpoints as we go |
| long newEnd = Long.MAX_VALUE; |
| for (int i = 0; i < alarms.size(); ) { |
| Alarm alarm = alarms.get(i); |
| if (alarm.operation.getTargetPackage().equals(packageName)) { |
| alarms.remove(i); |
| didRemove = true; |
| } else { |
| if (alarm.whenElapsed > newStart) { |
| newStart = alarm.whenElapsed; |
| } |
| if (alarm.maxWhen < newEnd) { |
| newEnd = alarm.maxWhen; |
| } |
| i++; |
| } |
| } |
| if (didRemove) { |
| // commit the new batch bounds |
| start = newStart; |
| end = newEnd; |
| } |
| return didRemove; |
| } |
| |
| boolean remove(final int userHandle) { |
| boolean didRemove = false; |
| long newStart = 0; // recalculate endpoints as we go |
| long newEnd = Long.MAX_VALUE; |
| for (int i = 0; i < alarms.size(); ) { |
| Alarm alarm = alarms.get(i); |
| if (UserHandle.getUserId(alarm.operation.getCreatorUid()) == userHandle) { |
| alarms.remove(i); |
| didRemove = true; |
| } else { |
| if (alarm.whenElapsed > newStart) { |
| newStart = alarm.whenElapsed; |
| } |
| if (alarm.maxWhen < newEnd) { |
| newEnd = alarm.maxWhen; |
| } |
| i++; |
| } |
| } |
| if (didRemove) { |
| // commit the new batch bounds |
| start = newStart; |
| end = newEnd; |
| } |
| return didRemove; |
| } |
| |
| boolean hasPackage(final String packageName) { |
| final int N = alarms.size(); |
| for (int i = 0; i < N; i++) { |
| Alarm a = alarms.get(i); |
| if (a.operation.getTargetPackage().equals(packageName)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| boolean hasWakeups() { |
| final int N = alarms.size(); |
| for (int i = 0; i < N; i++) { |
| Alarm a = alarms.get(i); |
| // non-wakeup alarms are types 1 and 3, i.e. have the low bit set |
| if ((a.type & TYPE_NONWAKEUP_MASK) == 0) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder b = new StringBuilder(40); |
| b.append("Batch{"); b.append(Integer.toHexString(this.hashCode())); |
| b.append(" num="); b.append(size()); |
| b.append(" start="); b.append(start); |
| b.append(" end="); b.append(end); |
| if (standalone) { |
| b.append(" STANDALONE"); |
| } |
| b.append('}'); |
| return b.toString(); |
| } |
| } |
| |
| static class BatchTimeOrder implements Comparator<Batch> { |
| public int compare(Batch b1, Batch b2) { |
| long when1 = b1.start; |
| long when2 = b2.start; |
| if (when1 - when2 > 0) { |
| return 1; |
| } |
| if (when1 - when2 < 0) { |
| return -1; |
| } |
| return 0; |
| } |
| } |
| |
| final Comparator<Alarm> mAlarmDispatchComparator = new Comparator<Alarm>() { |
| @Override |
| public int compare(Alarm lhs, Alarm rhs) { |
| if (lhs.wakeup != rhs.wakeup) { |
| return lhs.wakeup ? -1 : 1; |
| } |
| if (lhs.whenElapsed < rhs.whenElapsed) { |
| return -1; |
| } else if (lhs.whenElapsed > rhs.whenElapsed) { |
| return 1; |
| } |
| return 0; |
| } |
| }; |
| |
| // minimum recurrence period or alarm futurity for us to be able to fuzz it |
| static final long MIN_FUZZABLE_INTERVAL = 10000; |
| static final BatchTimeOrder sBatchOrder = new BatchTimeOrder(); |
| final ArrayList<Batch> mAlarmBatches = new ArrayList<Batch>(); |
| |
| public AlarmManagerService(Context context) { |
| super(context); |
| } |
| |
| static long convertToElapsed(long when, int type) { |
| final boolean isRtc = (type == RTC || type == RTC_WAKEUP); |
| if (isRtc) { |
| when -= System.currentTimeMillis() - SystemClock.elapsedRealtime(); |
| } |
| return when; |
| } |
| |
| // Apply a heuristic to { recurrence interval, futurity of the trigger time } to |
| // calculate the end of our nominal delivery window for the alarm. |
| static long maxTriggerTime(long now, long triggerAtTime, long interval) { |
| // Current heuristic: batchable window is 75% of either the recurrence interval |
| // [for a periodic alarm] or of the time from now to the desired delivery time, |
| // with a minimum delay/interval of 10 seconds, under which we will simply not |
| // defer the alarm. |
| long futurity = (interval == 0) |
| ? (triggerAtTime - now) |
| : interval; |
| if (futurity < MIN_FUZZABLE_INTERVAL) { |
| futurity = 0; |
| } |
| return triggerAtTime + (long)(.75 * futurity); |
| } |
| |
| // returns true if the batch was added at the head |
| static boolean addBatchLocked(ArrayList<Batch> list, Batch newBatch) { |
| int index = Collections.binarySearch(list, newBatch, sBatchOrder); |
| if (index < 0) { |
| index = 0 - index - 1; |
| } |
| list.add(index, newBatch); |
| return (index == 0); |
| } |
| |
| // Return the index of the matching batch, or -1 if none found. |
| int attemptCoalesceLocked(long whenElapsed, long maxWhen) { |
| final int N = mAlarmBatches.size(); |
| for (int i = 0; i < N; i++) { |
| Batch b = mAlarmBatches.get(i); |
| if (!b.standalone && b.canHold(whenElapsed, maxWhen)) { |
| return i; |
| } |
| } |
| return -1; |
| } |
| |
| // The RTC clock has moved arbitrarily, so we need to recalculate all the batching |
| void rebatchAllAlarms() { |
| synchronized (mLock) { |
| rebatchAllAlarmsLocked(true); |
| } |
| } |
| |
| void rebatchAllAlarmsLocked(boolean doValidate) { |
| ArrayList<Batch> oldSet = (ArrayList<Batch>) mAlarmBatches.clone(); |
| mAlarmBatches.clear(); |
| final long nowElapsed = SystemClock.elapsedRealtime(); |
| final int oldBatches = oldSet.size(); |
| for (int batchNum = 0; batchNum < oldBatches; batchNum++) { |
| Batch batch = oldSet.get(batchNum); |
| final int N = batch.size(); |
| for (int i = 0; i < N; i++) { |
| Alarm a = batch.get(i); |
| long whenElapsed = convertToElapsed(a.when, a.type); |
| final long maxElapsed; |
| if (a.whenElapsed == a.maxWhen) { |
| // Exact |
| maxElapsed = whenElapsed; |
| } else { |
| // Not exact. Preserve any explicit window, otherwise recalculate |
| // the window based on the alarm's new futurity. Note that this |
| // reflects a policy of preferring timely to deferred delivery. |
| maxElapsed = (a.windowLength > 0) |
| ? (whenElapsed + a.windowLength) |
| : maxTriggerTime(nowElapsed, whenElapsed, a.repeatInterval); |
| } |
| setImplLocked(a.type, a.when, whenElapsed, a.windowLength, maxElapsed, |
| a.repeatInterval, a.operation, batch.standalone, doValidate, a.workSource); |
| } |
| } |
| } |
| |
| static final class InFlight extends Intent { |
| final PendingIntent mPendingIntent; |
| final WorkSource mWorkSource; |
| final Pair<String, ComponentName> mTarget; |
| final BroadcastStats mBroadcastStats; |
| final FilterStats mFilterStats; |
| |
| InFlight(AlarmManagerService service, PendingIntent pendingIntent, WorkSource workSource) { |
| mPendingIntent = pendingIntent; |
| mWorkSource = workSource; |
| Intent intent = pendingIntent.getIntent(); |
| mTarget = intent != null |
| ? new Pair<String, ComponentName>(intent.getAction(), intent.getComponent()) |
| : null; |
| mBroadcastStats = service.getStatsLocked(pendingIntent); |
| FilterStats fs = mBroadcastStats.filterStats.get(mTarget); |
| if (fs == null) { |
| fs = new FilterStats(mBroadcastStats, mTarget); |
| mBroadcastStats.filterStats.put(mTarget, fs); |
| } |
| mFilterStats = fs; |
| } |
| } |
| |
| static final class FilterStats { |
| final BroadcastStats mBroadcastStats; |
| final Pair<String, ComponentName> mTarget; |
| |
| long aggregateTime; |
| int count; |
| int numWakeup; |
| long startTime; |
| int nesting; |
| |
| FilterStats(BroadcastStats broadcastStats, Pair<String, ComponentName> target) { |
| mBroadcastStats = broadcastStats; |
| mTarget = target; |
| } |
| } |
| |
| static final class BroadcastStats { |
| final int mUid; |
| final String mPackageName; |
| |
| long aggregateTime; |
| int count; |
| int numWakeup; |
| long startTime; |
| int nesting; |
| final ArrayMap<Pair<String, ComponentName>, FilterStats> filterStats |
| = new ArrayMap<Pair<String, ComponentName>, FilterStats>(); |
| |
| BroadcastStats(int uid, String packageName) { |
| mUid = uid; |
| mPackageName = packageName; |
| } |
| } |
| |
| final SparseArray<ArrayMap<String, BroadcastStats>> mBroadcastStats |
| = new SparseArray<ArrayMap<String, BroadcastStats>>(); |
| |
| @Override |
| public void onStart() { |
| mNativeData = init(); |
| mNextWakeup = mNextNonWakeup = 0; |
| |
| // We have to set current TimeZone info to kernel |
| // because kernel doesn't keep this after reboot |
| setTimeZoneImpl(SystemProperties.get(TIMEZONE_PROPERTY)); |
| |
| PowerManager pm = (PowerManager) getContext().getSystemService(Context.POWER_SERVICE); |
| mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "*alarm*"); |
| |
| mTimeTickSender = PendingIntent.getBroadcastAsUser(getContext(), 0, |
| new Intent(Intent.ACTION_TIME_TICK).addFlags( |
| Intent.FLAG_RECEIVER_REGISTERED_ONLY |
| | Intent.FLAG_RECEIVER_FOREGROUND), 0, |
| UserHandle.ALL); |
| Intent intent = new Intent(Intent.ACTION_DATE_CHANGED); |
| intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); |
| mDateChangeSender = PendingIntent.getBroadcastAsUser(getContext(), 0, intent, |
| Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT, UserHandle.ALL); |
| |
| // now that we have initied the driver schedule the alarm |
| mClockReceiver = new ClockReceiver(); |
| mClockReceiver.scheduleTimeTickEvent(); |
| mClockReceiver.scheduleDateChangedEvent(); |
| mUninstallReceiver = new UninstallReceiver(); |
| |
| if (mNativeData != 0) { |
| AlarmThread waitThread = new AlarmThread(); |
| waitThread.start(); |
| } else { |
| Slog.w(TAG, "Failed to open alarm driver. Falling back to a handler."); |
| } |
| |
| publishBinderService(Context.ALARM_SERVICE, mService); |
| } |
| |
| @Override |
| protected void finalize() throws Throwable { |
| try { |
| close(mNativeData); |
| } finally { |
| super.finalize(); |
| } |
| } |
| |
| void setTimeZoneImpl(String tz) { |
| if (TextUtils.isEmpty(tz)) { |
| return; |
| } |
| |
| TimeZone zone = TimeZone.getTimeZone(tz); |
| // Prevent reentrant calls from stepping on each other when writing |
| // the time zone property |
| boolean timeZoneWasChanged = false; |
| synchronized (this) { |
| String current = SystemProperties.get(TIMEZONE_PROPERTY); |
| if (current == null || !current.equals(zone.getID())) { |
| if (localLOGV) { |
| Slog.v(TAG, "timezone changed: " + current + ", new=" + zone.getID()); |
| } |
| timeZoneWasChanged = true; |
| SystemProperties.set(TIMEZONE_PROPERTY, zone.getID()); |
| } |
| |
| // Update the kernel timezone information |
| // Kernel tracks time offsets as 'minutes west of GMT' |
| int gmtOffset = zone.getOffset(System.currentTimeMillis()); |
| setKernelTimezone(mNativeData, -(gmtOffset / 60000)); |
| } |
| |
| TimeZone.setDefault(null); |
| |
| if (timeZoneWasChanged) { |
| Intent intent = new Intent(Intent.ACTION_TIMEZONE_CHANGED); |
| intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); |
| intent.putExtra("time-zone", zone.getID()); |
| getContext().sendBroadcastAsUser(intent, UserHandle.ALL); |
| } |
| } |
| |
| void removeImpl(PendingIntent operation) { |
| if (operation == null) { |
| return; |
| } |
| synchronized (mLock) { |
| removeLocked(operation); |
| } |
| } |
| |
| void setImpl(int type, long triggerAtTime, long windowLength, long interval, |
| PendingIntent operation, boolean isStandalone, WorkSource workSource) { |
| if (operation == null) { |
| Slog.w(TAG, "set/setRepeating ignored because there is no intent"); |
| return; |
| } |
| |
| // Sanity check the window length. This will catch people mistakenly |
| // trying to pass an end-of-window timestamp rather than a duration. |
| if (windowLength > AlarmManager.INTERVAL_HALF_DAY) { |
| Slog.w(TAG, "Window length " + windowLength |
| + "ms suspiciously long; limiting to 1 hour"); |
| windowLength = AlarmManager.INTERVAL_HOUR; |
| } |
| |
| if (type < RTC_WAKEUP || type > ELAPSED_REALTIME) { |
| throw new IllegalArgumentException("Invalid alarm type " + type); |
| } |
| |
| if (triggerAtTime < 0) { |
| final long who = Binder.getCallingUid(); |
| final long what = Binder.getCallingPid(); |
| Slog.w(TAG, "Invalid alarm trigger time! " + triggerAtTime + " from uid=" + who |
| + " pid=" + what); |
| triggerAtTime = 0; |
| } |
| |
| final long nowElapsed = SystemClock.elapsedRealtime(); |
| final long triggerElapsed = convertToElapsed(triggerAtTime, type); |
| final long maxElapsed; |
| if (windowLength == AlarmManager.WINDOW_EXACT) { |
| maxElapsed = triggerElapsed; |
| } else if (windowLength < 0) { |
| maxElapsed = maxTriggerTime(nowElapsed, triggerElapsed, interval); |
| } else { |
| maxElapsed = triggerElapsed + windowLength; |
| } |
| |
| synchronized (mLock) { |
| if (DEBUG_BATCH) { |
| Slog.v(TAG, "set(" + operation + ") : type=" + type |
| + " triggerAtTime=" + triggerAtTime + " win=" + windowLength |
| + " tElapsed=" + triggerElapsed + " maxElapsed=" + maxElapsed |
| + " interval=" + interval + " standalone=" + isStandalone); |
| } |
| setImplLocked(type, triggerAtTime, triggerElapsed, windowLength, maxElapsed, |
| interval, operation, isStandalone, true, workSource); |
| } |
| } |
| |
| private void setImplLocked(int type, long when, long whenElapsed, long windowLength, |
| long maxWhen, long interval, PendingIntent operation, boolean isStandalone, |
| boolean doValidate, WorkSource workSource) { |
| Alarm a = new Alarm(type, when, whenElapsed, windowLength, maxWhen, interval, |
| operation, workSource); |
| removeLocked(operation); |
| |
| int whichBatch = (isStandalone) ? -1 : attemptCoalesceLocked(whenElapsed, maxWhen); |
| if (whichBatch < 0) { |
| Batch batch = new Batch(a); |
| batch.standalone = isStandalone; |
| addBatchLocked(mAlarmBatches, batch); |
| } else { |
| Batch batch = mAlarmBatches.get(whichBatch); |
| if (batch.add(a)) { |
| // The start time of this batch advanced, so batch ordering may |
| // have just been broken. Move it to where it now belongs. |
| mAlarmBatches.remove(whichBatch); |
| addBatchLocked(mAlarmBatches, batch); |
| } |
| } |
| |
| if (DEBUG_VALIDATE) { |
| if (doValidate && !validateConsistencyLocked()) { |
| Slog.v(TAG, "Tipping-point operation: type=" + type + " when=" + when |
| + " when(hex)=" + Long.toHexString(when) |
| + " whenElapsed=" + whenElapsed + " maxWhen=" + maxWhen |
| + " interval=" + interval + " op=" + operation |
| + " standalone=" + isStandalone); |
| rebatchAllAlarmsLocked(false); |
| } |
| } |
| |
| rescheduleKernelAlarmsLocked(); |
| } |
| |
| private final IBinder mService = new IAlarmManager.Stub() { |
| @Override |
| public void set(int type, long triggerAtTime, long windowLength, long interval, |
| PendingIntent operation, WorkSource workSource) { |
| if (workSource != null) { |
| getContext().enforceCallingPermission( |
| android.Manifest.permission.UPDATE_DEVICE_STATS, |
| "AlarmManager.set"); |
| } |
| |
| setImpl(type, triggerAtTime, windowLength, interval, operation, |
| false, workSource); |
| } |
| |
| @Override |
| public boolean setTime(long millis) { |
| getContext().enforceCallingOrSelfPermission( |
| "android.permission.SET_TIME", |
| "setTime"); |
| |
| if (mNativeData == 0) { |
| Slog.w(TAG, "Not setting time since no alarm driver is available."); |
| return false; |
| } |
| |
| synchronized (mLock) { |
| return setKernelTime(mNativeData, millis) == 0; |
| } |
| } |
| |
| @Override |
| public void setTimeZone(String tz) { |
| getContext().enforceCallingOrSelfPermission( |
| "android.permission.SET_TIME_ZONE", |
| "setTimeZone"); |
| |
| final long oldId = Binder.clearCallingIdentity(); |
| try { |
| setTimeZoneImpl(tz); |
| } finally { |
| Binder.restoreCallingIdentity(oldId); |
| } |
| } |
| |
| @Override |
| public void remove(PendingIntent operation) { |
| removeImpl(operation); |
| |
| } |
| |
| @Override |
| protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| if (getContext().checkCallingOrSelfPermission(android.Manifest.permission.DUMP) |
| != PackageManager.PERMISSION_GRANTED) { |
| pw.println("Permission Denial: can't dump AlarmManager from from pid=" |
| + Binder.getCallingPid() |
| + ", uid=" + Binder.getCallingUid()); |
| return; |
| } |
| |
| dumpImpl(pw); |
| } |
| }; |
| |
| void dumpImpl(PrintWriter pw) { |
| synchronized (mLock) { |
| pw.println("Current Alarm Manager state:"); |
| final long nowRTC = System.currentTimeMillis(); |
| final long nowELAPSED = SystemClock.elapsedRealtime(); |
| SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); |
| |
| pw.print("nowRTC="); pw.print(nowRTC); |
| pw.print("="); pw.print(sdf.format(new Date(nowRTC))); |
| pw.print(" nowELAPSED="); pw.println(nowELAPSED); |
| |
| long nextWakeupRTC = mNextWakeup + (nowRTC - nowELAPSED); |
| long nextNonWakeupRTC = mNextNonWakeup + (nowRTC - nowELAPSED); |
| pw.print("Next alarm: "); pw.print(mNextNonWakeup); |
| pw.print(" = "); pw.println(sdf.format(new Date(nextNonWakeupRTC))); |
| pw.print("Next wakeup: "); pw.print(mNextWakeup); |
| pw.print(" = "); pw.println(sdf.format(new Date(nextWakeupRTC))); |
| |
| if (mAlarmBatches.size() > 0) { |
| pw.println(); |
| pw.print("Pending alarm batches: "); |
| pw.println(mAlarmBatches.size()); |
| for (Batch b : mAlarmBatches) { |
| pw.print(b); pw.println(':'); |
| dumpAlarmList(pw, b.alarms, " ", nowELAPSED, nowRTC); |
| } |
| } |
| |
| pw.println(); |
| pw.print(" Broadcast ref count: "); pw.println(mBroadcastRefCount); |
| pw.println(); |
| |
| if (mLog.dump(pw, " Recent problems", " ")) { |
| pw.println(); |
| } |
| |
| final FilterStats[] topFilters = new FilterStats[10]; |
| final Comparator<FilterStats> comparator = new Comparator<FilterStats>() { |
| @Override |
| public int compare(FilterStats lhs, FilterStats rhs) { |
| if (lhs.aggregateTime < rhs.aggregateTime) { |
| return 1; |
| } else if (lhs.aggregateTime > rhs.aggregateTime) { |
| return -1; |
| } |
| return 0; |
| } |
| }; |
| int len = 0; |
| for (int iu=0; iu<mBroadcastStats.size(); iu++) { |
| ArrayMap<String, BroadcastStats> uidStats = mBroadcastStats.valueAt(iu); |
| for (int ip=0; ip<uidStats.size(); ip++) { |
| BroadcastStats bs = uidStats.valueAt(ip); |
| for (int is=0; is<bs.filterStats.size(); is++) { |
| FilterStats fs = bs.filterStats.valueAt(is); |
| int pos = len > 0 |
| ? Arrays.binarySearch(topFilters, 0, len, fs, comparator) : 0; |
| if (pos < 0) { |
| pos = -pos - 1; |
| } |
| if (pos < topFilters.length) { |
| int copylen = topFilters.length - pos - 1; |
| if (copylen > 0) { |
| System.arraycopy(topFilters, pos, topFilters, pos+1, copylen); |
| } |
| topFilters[pos] = fs; |
| if (len < topFilters.length) { |
| len++; |
| } |
| } |
| } |
| } |
| } |
| if (len > 0) { |
| pw.println(" Top Alarms:"); |
| for (int i=0; i<len; i++) { |
| FilterStats fs = topFilters[i]; |
| pw.print(" "); |
| if (fs.nesting > 0) pw.print("*ACTIVE* "); |
| TimeUtils.formatDuration(fs.aggregateTime, pw); |
| pw.print(" running, "); pw.print(fs.numWakeup); |
| pw.print(" wakeups, "); pw.print(fs.count); |
| pw.print(" alarms: "); UserHandle.formatUid(pw, fs.mBroadcastStats.mUid); |
| pw.print(":"); pw.print(fs.mBroadcastStats.mPackageName); |
| pw.println(); |
| pw.print(" "); |
| if (fs.mTarget.first != null) { |
| pw.print(" act="); pw.print(fs.mTarget.first); |
| } |
| if (fs.mTarget.second != null) { |
| pw.print(" cmp="); pw.print(fs.mTarget.second.toShortString()); |
| } |
| pw.println(); |
| } |
| } |
| |
| pw.println(" "); |
| pw.println(" Alarm Stats:"); |
| final ArrayList<FilterStats> tmpFilters = new ArrayList<FilterStats>(); |
| for (int iu=0; iu<mBroadcastStats.size(); iu++) { |
| ArrayMap<String, BroadcastStats> uidStats = mBroadcastStats.valueAt(iu); |
| for (int ip=0; ip<uidStats.size(); ip++) { |
| BroadcastStats bs = uidStats.valueAt(ip); |
| pw.print(" "); |
| if (bs.nesting > 0) pw.print("*ACTIVE* "); |
| UserHandle.formatUid(pw, bs.mUid); |
| pw.print(":"); |
| pw.print(bs.mPackageName); |
| pw.print(" "); TimeUtils.formatDuration(bs.aggregateTime, pw); |
| pw.print(" running, "); pw.print(bs.numWakeup); |
| pw.println(" wakeups:"); |
| tmpFilters.clear(); |
| for (int is=0; is<bs.filterStats.size(); is++) { |
| tmpFilters.add(bs.filterStats.valueAt(is)); |
| } |
| Collections.sort(tmpFilters, comparator); |
| for (int i=0; i<tmpFilters.size(); i++) { |
| FilterStats fs = tmpFilters.get(i); |
| pw.print(" "); |
| if (fs.nesting > 0) pw.print("*ACTIVE* "); |
| TimeUtils.formatDuration(fs.aggregateTime, pw); |
| pw.print(" "); pw.print(fs.numWakeup); |
| pw.print(" wakes " ); pw.print(fs.count); |
| pw.print(" alarms:"); |
| if (fs.mTarget.first != null) { |
| pw.print(" act="); pw.print(fs.mTarget.first); |
| } |
| if (fs.mTarget.second != null) { |
| pw.print(" cmp="); pw.print(fs.mTarget.second.toShortString()); |
| } |
| pw.println(); |
| } |
| } |
| } |
| |
| if (WAKEUP_STATS) { |
| pw.println(); |
| pw.println(" Recent Wakeup History:"); |
| long last = -1; |
| for (WakeupEvent event : mRecentWakeups) { |
| pw.print(" "); pw.print(sdf.format(new Date(event.when))); |
| pw.print('|'); |
| if (last < 0) { |
| pw.print('0'); |
| } else { |
| pw.print(event.when - last); |
| } |
| last = event.when; |
| pw.print('|'); pw.print(event.uid); |
| pw.print('|'); pw.print(event.action); |
| pw.println(); |
| } |
| pw.println(); |
| } |
| } |
| } |
| |
| private void logBatchesLocked() { |
| ByteArrayOutputStream bs = new ByteArrayOutputStream(2048); |
| PrintWriter pw = new PrintWriter(bs); |
| final long nowRTC = System.currentTimeMillis(); |
| final long nowELAPSED = SystemClock.elapsedRealtime(); |
| final int NZ = mAlarmBatches.size(); |
| for (int iz = 0; iz < NZ; iz++) { |
| Batch bz = mAlarmBatches.get(iz); |
| pw.append("Batch "); pw.print(iz); pw.append(": "); pw.println(bz); |
| dumpAlarmList(pw, bz.alarms, " ", nowELAPSED, nowRTC); |
| pw.flush(); |
| Slog.v(TAG, bs.toString()); |
| bs.reset(); |
| } |
| } |
| |
| private boolean validateConsistencyLocked() { |
| if (DEBUG_VALIDATE) { |
| long lastTime = Long.MIN_VALUE; |
| final int N = mAlarmBatches.size(); |
| for (int i = 0; i < N; i++) { |
| Batch b = mAlarmBatches.get(i); |
| if (b.start >= lastTime) { |
| // duplicate start times are okay because of standalone batches |
| lastTime = b.start; |
| } else { |
| Slog.e(TAG, "CONSISTENCY FAILURE: Batch " + i + " is out of order"); |
| logBatchesLocked(); |
| return false; |
| } |
| } |
| } |
| return true; |
| } |
| |
| private Batch findFirstWakeupBatchLocked() { |
| final int N = mAlarmBatches.size(); |
| for (int i = 0; i < N; i++) { |
| Batch b = mAlarmBatches.get(i); |
| if (b.hasWakeups()) { |
| return b; |
| } |
| } |
| return null; |
| } |
| |
| void rescheduleKernelAlarmsLocked() { |
| // Schedule the next upcoming wakeup alarm. If there is a deliverable batch |
| // prior to that which contains no wakeups, we schedule that as well. |
| if (mAlarmBatches.size() > 0) { |
| final Batch firstWakeup = findFirstWakeupBatchLocked(); |
| final Batch firstBatch = mAlarmBatches.get(0); |
| if (firstWakeup != null && mNextWakeup != firstWakeup.start) { |
| mNextWakeup = firstWakeup.start; |
| setLocked(ELAPSED_REALTIME_WAKEUP, firstWakeup.start); |
| } |
| if (firstBatch != firstWakeup && mNextNonWakeup != firstBatch.start) { |
| mNextNonWakeup = firstBatch.start; |
| setLocked(ELAPSED_REALTIME, firstBatch.start); |
| } |
| } |
| } |
| |
| private void removeLocked(PendingIntent operation) { |
| boolean didRemove = false; |
| for (int i = mAlarmBatches.size() - 1; i >= 0; i--) { |
| Batch b = mAlarmBatches.get(i); |
| didRemove |= b.remove(operation); |
| if (b.size() == 0) { |
| mAlarmBatches.remove(i); |
| } |
| } |
| |
| if (didRemove) { |
| if (DEBUG_BATCH) { |
| Slog.v(TAG, "remove(operation) changed bounds; rebatching"); |
| } |
| rebatchAllAlarmsLocked(true); |
| rescheduleKernelAlarmsLocked(); |
| } |
| } |
| |
| void removeLocked(String packageName) { |
| boolean didRemove = false; |
| for (int i = mAlarmBatches.size() - 1; i >= 0; i--) { |
| Batch b = mAlarmBatches.get(i); |
| didRemove |= b.remove(packageName); |
| if (b.size() == 0) { |
| mAlarmBatches.remove(i); |
| } |
| } |
| |
| if (didRemove) { |
| if (DEBUG_BATCH) { |
| Slog.v(TAG, "remove(package) changed bounds; rebatching"); |
| } |
| rebatchAllAlarmsLocked(true); |
| rescheduleKernelAlarmsLocked(); |
| } |
| } |
| |
| void removeUserLocked(int userHandle) { |
| boolean didRemove = false; |
| for (int i = mAlarmBatches.size() - 1; i >= 0; i--) { |
| Batch b = mAlarmBatches.get(i); |
| didRemove |= b.remove(userHandle); |
| if (b.size() == 0) { |
| mAlarmBatches.remove(i); |
| } |
| } |
| |
| if (didRemove) { |
| if (DEBUG_BATCH) { |
| Slog.v(TAG, "remove(user) changed bounds; rebatching"); |
| } |
| rebatchAllAlarmsLocked(true); |
| rescheduleKernelAlarmsLocked(); |
| } |
| } |
| |
| boolean lookForPackageLocked(String packageName) { |
| for (int i = 0; i < mAlarmBatches.size(); i++) { |
| Batch b = mAlarmBatches.get(i); |
| if (b.hasPackage(packageName)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| private void setLocked(int type, long when) { |
| if (mNativeData != 0) { |
| // The kernel never triggers alarms with negative wakeup times |
| // so we ensure they are positive. |
| long alarmSeconds, alarmNanoseconds; |
| if (when < 0) { |
| alarmSeconds = 0; |
| alarmNanoseconds = 0; |
| } else { |
| alarmSeconds = when / 1000; |
| alarmNanoseconds = (when % 1000) * 1000 * 1000; |
| } |
| |
| set(mNativeData, type, alarmSeconds, alarmNanoseconds); |
| } else { |
| Message msg = Message.obtain(); |
| msg.what = ALARM_EVENT; |
| |
| mHandler.removeMessages(ALARM_EVENT); |
| mHandler.sendMessageAtTime(msg, when); |
| } |
| } |
| |
| private static final void dumpAlarmList(PrintWriter pw, ArrayList<Alarm> list, |
| String prefix, String label, long now) { |
| for (int i=list.size()-1; i>=0; i--) { |
| Alarm a = list.get(i); |
| pw.print(prefix); pw.print(label); pw.print(" #"); pw.print(i); |
| pw.print(": "); pw.println(a); |
| a.dump(pw, prefix + " ", now); |
| } |
| } |
| |
| private static final String labelForType(int type) { |
| switch (type) { |
| case RTC: return "RTC"; |
| case RTC_WAKEUP : return "RTC_WAKEUP"; |
| case ELAPSED_REALTIME : return "ELAPSED"; |
| case ELAPSED_REALTIME_WAKEUP: return "ELAPSED_WAKEUP"; |
| default: |
| break; |
| } |
| return "--unknown--"; |
| } |
| |
| private static final void dumpAlarmList(PrintWriter pw, ArrayList<Alarm> list, |
| String prefix, long nowELAPSED, long nowRTC) { |
| for (int i=list.size()-1; i>=0; i--) { |
| Alarm a = list.get(i); |
| final String label = labelForType(a.type); |
| long now = (a.type <= RTC) ? nowRTC : nowELAPSED; |
| pw.print(prefix); pw.print(label); pw.print(" #"); pw.print(i); |
| pw.print(": "); pw.println(a); |
| a.dump(pw, prefix + " ", now); |
| } |
| } |
| |
| private native long init(); |
| private native void close(long nativeData); |
| private native void set(long nativeData, int type, long seconds, long nanoseconds); |
| private native int waitForAlarm(long nativeData); |
| private native int setKernelTime(long nativeData, long millis); |
| private native int setKernelTimezone(long nativeData, int minuteswest); |
| |
| void triggerAlarmsLocked(ArrayList<Alarm> triggerList, final long nowELAPSED, |
| final long nowRTC) { |
| // batches are temporally sorted, so we need only pull from the |
| // start of the list until we either empty it or hit a batch |
| // that is not yet deliverable |
| while (mAlarmBatches.size() > 0) { |
| Batch batch = mAlarmBatches.get(0); |
| if (batch.start > nowELAPSED) { |
| // Everything else is scheduled for the future |
| break; |
| } |
| |
| // We will (re)schedule some alarms now; don't let that interfere |
| // with delivery of this current batch |
| mAlarmBatches.remove(0); |
| |
| final int N = batch.size(); |
| for (int i = 0; i < N; i++) { |
| Alarm alarm = batch.get(i); |
| alarm.count = 1; |
| triggerList.add(alarm); |
| |
| // Recurring alarms may have passed several alarm intervals while the |
| // phone was asleep or off, so pass a trigger count when sending them. |
| if (alarm.repeatInterval > 0) { |
| // this adjustment will be zero if we're late by |
| // less than one full repeat interval |
| alarm.count += (nowELAPSED - alarm.whenElapsed) / alarm.repeatInterval; |
| |
| // Also schedule its next recurrence |
| final long delta = alarm.count * alarm.repeatInterval; |
| final long nextElapsed = alarm.whenElapsed + delta; |
| setImplLocked(alarm.type, alarm.when + delta, nextElapsed, alarm.windowLength, |
| maxTriggerTime(nowELAPSED, nextElapsed, alarm.repeatInterval), |
| alarm.repeatInterval, alarm.operation, batch.standalone, true, |
| alarm.workSource); |
| } |
| |
| } |
| } |
| |
| Collections.sort(triggerList, mAlarmDispatchComparator); |
| |
| if (localLOGV) { |
| for (int i=0; i<triggerList.size(); i++) { |
| Slog.v(TAG, "Triggering alarm #" + i + ": " + triggerList.get(i)); |
| } |
| } |
| } |
| |
| /** |
| * This Comparator sorts Alarms into increasing time order. |
| */ |
| public static class IncreasingTimeOrder implements Comparator<Alarm> { |
| public int compare(Alarm a1, Alarm a2) { |
| long when1 = a1.when; |
| long when2 = a2.when; |
| if (when1 - when2 > 0) { |
| return 1; |
| } |
| if (when1 - when2 < 0) { |
| return -1; |
| } |
| return 0; |
| } |
| } |
| |
| private static class Alarm { |
| public final int type; |
| public final boolean wakeup; |
| public int count; |
| public long when; |
| public long windowLength; |
| public long whenElapsed; // 'when' in the elapsed time base |
| public long maxWhen; // also in the elapsed time base |
| public long repeatInterval; |
| public PendingIntent operation; |
| public WorkSource workSource; |
| |
| public Alarm(int _type, long _when, long _whenElapsed, long _windowLength, long _maxWhen, |
| long _interval, PendingIntent _op, WorkSource _ws) { |
| type = _type; |
| wakeup = _type == AlarmManager.ELAPSED_REALTIME_WAKEUP |
| || _type == AlarmManager.RTC_WAKEUP; |
| when = _when; |
| whenElapsed = _whenElapsed; |
| windowLength = _windowLength; |
| maxWhen = _maxWhen; |
| repeatInterval = _interval; |
| operation = _op; |
| workSource = _ws; |
| } |
| |
| @Override |
| public String toString() |
| { |
| StringBuilder sb = new StringBuilder(128); |
| sb.append("Alarm{"); |
| sb.append(Integer.toHexString(System.identityHashCode(this))); |
| sb.append(" type "); |
| sb.append(type); |
| sb.append(" when "); |
| sb.append(when); |
| sb.append(" "); |
| sb.append(operation.getTargetPackage()); |
| sb.append('}'); |
| return sb.toString(); |
| } |
| |
| public void dump(PrintWriter pw, String prefix, long now) { |
| pw.print(prefix); pw.print("type="); pw.print(type); |
| pw.print(" whenElapsed="); pw.print(whenElapsed); |
| pw.print(" when="); TimeUtils.formatDuration(when, now, pw); |
| pw.print(" window="); pw.print(windowLength); |
| pw.print(" repeatInterval="); pw.print(repeatInterval); |
| pw.print(" count="); pw.println(count); |
| pw.print(prefix); pw.print("operation="); pw.println(operation); |
| } |
| } |
| |
| void recordWakeupAlarms(ArrayList<Batch> batches, long nowELAPSED, long nowRTC) { |
| final int numBatches = batches.size(); |
| for (int nextBatch = 0; nextBatch < numBatches; nextBatch++) { |
| Batch b = batches.get(nextBatch); |
| if (b.start > nowELAPSED) { |
| break; |
| } |
| |
| final int numAlarms = b.alarms.size(); |
| for (int nextAlarm = 0; nextAlarm < numAlarms; nextAlarm++) { |
| Alarm a = b.alarms.get(nextAlarm); |
| WakeupEvent e = new WakeupEvent(nowRTC, |
| a.operation.getCreatorUid(), |
| a.operation.getIntent().getAction()); |
| mRecentWakeups.add(e); |
| } |
| } |
| } |
| |
| private class AlarmThread extends Thread |
| { |
| public AlarmThread() |
| { |
| super("AlarmManager"); |
| } |
| |
| public void run() |
| { |
| ArrayList<Alarm> triggerList = new ArrayList<Alarm>(); |
| |
| while (true) |
| { |
| int result = waitForAlarm(mNativeData); |
| |
| triggerList.clear(); |
| |
| if ((result & TIME_CHANGED_MASK) != 0) { |
| if (DEBUG_BATCH) { |
| Slog.v(TAG, "Time changed notification from kernel; rebatching"); |
| } |
| removeImpl(mTimeTickSender); |
| rebatchAllAlarms(); |
| mClockReceiver.scheduleTimeTickEvent(); |
| Intent intent = new Intent(Intent.ACTION_TIME_CHANGED); |
| intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING |
| | Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| getContext().sendBroadcastAsUser(intent, UserHandle.ALL); |
| } |
| |
| synchronized (mLock) { |
| final long nowRTC = System.currentTimeMillis(); |
| final long nowELAPSED = SystemClock.elapsedRealtime(); |
| if (localLOGV) Slog.v( |
| TAG, "Checking for alarms... rtc=" + nowRTC |
| + ", elapsed=" + nowELAPSED); |
| |
| if (WAKEUP_STATS) { |
| if ((result & IS_WAKEUP_MASK) != 0) { |
| long newEarliest = nowRTC - RECENT_WAKEUP_PERIOD; |
| int n = 0; |
| for (WakeupEvent event : mRecentWakeups) { |
| if (event.when > newEarliest) break; |
| n++; // number of now-stale entries at the list head |
| } |
| for (int i = 0; i < n; i++) { |
| mRecentWakeups.remove(); |
| } |
| |
| recordWakeupAlarms(mAlarmBatches, nowELAPSED, nowRTC); |
| } |
| } |
| |
| triggerAlarmsLocked(triggerList, nowELAPSED, nowRTC); |
| rescheduleKernelAlarmsLocked(); |
| |
| // now deliver the alarm intents |
| for (int i=0; i<triggerList.size(); i++) { |
| Alarm alarm = triggerList.get(i); |
| try { |
| if (localLOGV) Slog.v(TAG, "sending alarm " + alarm); |
| alarm.operation.send(getContext(), 0, |
| mBackgroundIntent.putExtra( |
| Intent.EXTRA_ALARM_COUNT, alarm.count), |
| mResultReceiver, mHandler); |
| |
| // we have an active broadcast so stay awake. |
| if (mBroadcastRefCount == 0) { |
| setWakelockWorkSource(alarm.operation, alarm.workSource); |
| mWakeLock.setUnimportantForLogging( |
| alarm.operation == mTimeTickSender); |
| mWakeLock.setHistoryTag(alarm.operation.getTag("*alarm*:")); |
| mWakeLock.acquire(); |
| } |
| final InFlight inflight = new InFlight(AlarmManagerService.this, |
| alarm.operation, alarm.workSource); |
| mInFlight.add(inflight); |
| mBroadcastRefCount++; |
| |
| final BroadcastStats bs = inflight.mBroadcastStats; |
| bs.count++; |
| if (bs.nesting == 0) { |
| bs.nesting = 1; |
| bs.startTime = nowELAPSED; |
| } else { |
| bs.nesting++; |
| } |
| final FilterStats fs = inflight.mFilterStats; |
| fs.count++; |
| if (fs.nesting == 0) { |
| fs.nesting = 1; |
| fs.startTime = nowELAPSED; |
| } else { |
| fs.nesting++; |
| } |
| if (alarm.type == ELAPSED_REALTIME_WAKEUP |
| || alarm.type == RTC_WAKEUP) { |
| bs.numWakeup++; |
| fs.numWakeup++; |
| if (alarm.workSource != null && alarm.workSource.size() > 0) { |
| for (int wi=0; wi<alarm.workSource.size(); wi++) { |
| ActivityManagerNative.noteWakeupAlarm( |
| alarm.operation, alarm.workSource.get(wi), |
| alarm.workSource.getName(wi)); |
| } |
| } else { |
| ActivityManagerNative.noteWakeupAlarm( |
| alarm.operation, -1, null); |
| } |
| } |
| } catch (PendingIntent.CanceledException e) { |
| if (alarm.repeatInterval > 0) { |
| // This IntentSender is no longer valid, but this |
| // is a repeating alarm, so toss the hoser. |
| removeImpl(alarm.operation); |
| } |
| } catch (RuntimeException e) { |
| Slog.w(TAG, "Failure sending alarm.", e); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| /** |
| * Attribute blame for a WakeLock. |
| * @param pi PendingIntent to attribute blame to if ws is null. |
| * @param ws WorkSource to attribute blame. |
| */ |
| void setWakelockWorkSource(PendingIntent pi, WorkSource ws) { |
| try { |
| if (ws != null) { |
| mWakeLock.setWorkSource(ws); |
| return; |
| } |
| |
| final int uid = ActivityManagerNative.getDefault() |
| .getUidForIntentSender(pi.getTarget()); |
| if (uid >= 0) { |
| mWakeLock.setWorkSource(new WorkSource(uid)); |
| return; |
| } |
| } catch (Exception e) { |
| } |
| |
| // Something went wrong; fall back to attributing the lock to the OS |
| mWakeLock.setWorkSource(null); |
| } |
| |
| private class AlarmHandler extends Handler { |
| public static final int ALARM_EVENT = 1; |
| public static final int MINUTE_CHANGE_EVENT = 2; |
| public static final int DATE_CHANGE_EVENT = 3; |
| |
| public AlarmHandler() { |
| } |
| |
| public void handleMessage(Message msg) { |
| if (msg.what == ALARM_EVENT) { |
| ArrayList<Alarm> triggerList = new ArrayList<Alarm>(); |
| synchronized (mLock) { |
| final long nowRTC = System.currentTimeMillis(); |
| final long nowELAPSED = SystemClock.elapsedRealtime(); |
| triggerAlarmsLocked(triggerList, nowELAPSED, nowRTC); |
| } |
| |
| // now trigger the alarms without the lock held |
| for (int i=0; i<triggerList.size(); i++) { |
| Alarm alarm = triggerList.get(i); |
| try { |
| alarm.operation.send(); |
| } catch (PendingIntent.CanceledException e) { |
| if (alarm.repeatInterval > 0) { |
| // This IntentSender is no longer valid, but this |
| // is a repeating alarm, so toss the hoser. |
| removeImpl(alarm.operation); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| class ClockReceiver extends BroadcastReceiver { |
| public ClockReceiver() { |
| IntentFilter filter = new IntentFilter(); |
| filter.addAction(Intent.ACTION_TIME_TICK); |
| filter.addAction(Intent.ACTION_DATE_CHANGED); |
| getContext().registerReceiver(this, filter); |
| } |
| |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| if (intent.getAction().equals(Intent.ACTION_TIME_TICK)) { |
| if (DEBUG_BATCH) { |
| Slog.v(TAG, "Received TIME_TICK alarm; rescheduling"); |
| } |
| scheduleTimeTickEvent(); |
| } else if (intent.getAction().equals(Intent.ACTION_DATE_CHANGED)) { |
| // Since the kernel does not keep track of DST, we need to |
| // reset the TZ information at the beginning of each day |
| // based off of the current Zone gmt offset + userspace tracked |
| // daylight savings information. |
| TimeZone zone = TimeZone.getTimeZone(SystemProperties.get(TIMEZONE_PROPERTY)); |
| int gmtOffset = zone.getOffset(System.currentTimeMillis()); |
| setKernelTimezone(mNativeData, -(gmtOffset / 60000)); |
| scheduleDateChangedEvent(); |
| } |
| } |
| |
| public void scheduleTimeTickEvent() { |
| final long currentTime = System.currentTimeMillis(); |
| final long nextTime = 60000 * ((currentTime / 60000) + 1); |
| |
| // Schedule this event for the amount of time that it would take to get to |
| // the top of the next minute. |
| final long tickEventDelay = nextTime - currentTime; |
| |
| final WorkSource workSource = null; // Let system take blame for time tick events. |
| setImpl(ELAPSED_REALTIME, SystemClock.elapsedRealtime() + tickEventDelay, 0, |
| 0, mTimeTickSender, true, workSource); |
| } |
| |
| public void scheduleDateChangedEvent() { |
| Calendar calendar = Calendar.getInstance(); |
| calendar.setTimeInMillis(System.currentTimeMillis()); |
| calendar.set(Calendar.HOUR, 0); |
| calendar.set(Calendar.MINUTE, 0); |
| calendar.set(Calendar.SECOND, 0); |
| calendar.set(Calendar.MILLISECOND, 0); |
| calendar.add(Calendar.DAY_OF_MONTH, 1); |
| |
| final WorkSource workSource = null; // Let system take blame for date change events. |
| setImpl(RTC, calendar.getTimeInMillis(), 0, 0, mDateChangeSender, true, workSource); |
| } |
| } |
| |
| class UninstallReceiver extends BroadcastReceiver { |
| public UninstallReceiver() { |
| IntentFilter filter = new IntentFilter(); |
| filter.addAction(Intent.ACTION_PACKAGE_REMOVED); |
| filter.addAction(Intent.ACTION_PACKAGE_RESTARTED); |
| filter.addAction(Intent.ACTION_QUERY_PACKAGE_RESTART); |
| filter.addDataScheme("package"); |
| getContext().registerReceiver(this, filter); |
| // Register for events related to sdcard installation. |
| IntentFilter sdFilter = new IntentFilter(); |
| sdFilter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); |
| sdFilter.addAction(Intent.ACTION_USER_STOPPED); |
| getContext().registerReceiver(this, sdFilter); |
| } |
| |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| synchronized (mLock) { |
| String action = intent.getAction(); |
| String pkgList[] = null; |
| if (Intent.ACTION_QUERY_PACKAGE_RESTART.equals(action)) { |
| pkgList = intent.getStringArrayExtra(Intent.EXTRA_PACKAGES); |
| for (String packageName : pkgList) { |
| if (lookForPackageLocked(packageName)) { |
| setResultCode(Activity.RESULT_OK); |
| return; |
| } |
| } |
| return; |
| } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { |
| pkgList = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST); |
| } else if (Intent.ACTION_USER_STOPPED.equals(action)) { |
| int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, -1); |
| if (userHandle >= 0) { |
| removeUserLocked(userHandle); |
| } |
| } else { |
| if (Intent.ACTION_PACKAGE_REMOVED.equals(action) |
| && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { |
| // This package is being updated; don't kill its alarms. |
| return; |
| } |
| Uri data = intent.getData(); |
| if (data != null) { |
| String pkg = data.getSchemeSpecificPart(); |
| if (pkg != null) { |
| pkgList = new String[]{pkg}; |
| } |
| } |
| } |
| if (pkgList != null && (pkgList.length > 0)) { |
| for (String pkg : pkgList) { |
| removeLocked(pkg); |
| for (int i=mBroadcastStats.size()-1; i>=0; i--) { |
| ArrayMap<String, BroadcastStats> uidStats = mBroadcastStats.valueAt(i); |
| if (uidStats.remove(pkg) != null) { |
| if (uidStats.size() <= 0) { |
| mBroadcastStats.removeAt(i); |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| private final BroadcastStats getStatsLocked(PendingIntent pi) { |
| String pkg = pi.getCreatorPackage(); |
| int uid = pi.getCreatorUid(); |
| ArrayMap<String, BroadcastStats> uidStats = mBroadcastStats.get(uid); |
| if (uidStats == null) { |
| uidStats = new ArrayMap<String, BroadcastStats>(); |
| mBroadcastStats.put(uid, uidStats); |
| } |
| BroadcastStats bs = uidStats.get(pkg); |
| if (bs == null) { |
| bs = new BroadcastStats(uid, pkg); |
| uidStats.put(pkg, bs); |
| } |
| return bs; |
| } |
| |
| class ResultReceiver implements PendingIntent.OnFinished { |
| public void onSendFinished(PendingIntent pi, Intent intent, int resultCode, |
| String resultData, Bundle resultExtras) { |
| synchronized (mLock) { |
| InFlight inflight = null; |
| for (int i=0; i<mInFlight.size(); i++) { |
| if (mInFlight.get(i).mPendingIntent == pi) { |
| inflight = mInFlight.remove(i); |
| break; |
| } |
| } |
| if (inflight != null) { |
| final long nowELAPSED = SystemClock.elapsedRealtime(); |
| BroadcastStats bs = inflight.mBroadcastStats; |
| bs.nesting--; |
| if (bs.nesting <= 0) { |
| bs.nesting = 0; |
| bs.aggregateTime += nowELAPSED - bs.startTime; |
| } |
| FilterStats fs = inflight.mFilterStats; |
| fs.nesting--; |
| if (fs.nesting <= 0) { |
| fs.nesting = 0; |
| fs.aggregateTime += nowELAPSED - fs.startTime; |
| } |
| } else { |
| mLog.w("No in-flight alarm for " + pi + " " + intent); |
| } |
| mBroadcastRefCount--; |
| if (mBroadcastRefCount == 0) { |
| mWakeLock.release(); |
| if (mInFlight.size() > 0) { |
| mLog.w("Finished all broadcasts with " + mInFlight.size() |
| + " remaining inflights"); |
| for (int i=0; i<mInFlight.size(); i++) { |
| mLog.w(" Remaining #" + i + ": " + mInFlight.get(i)); |
| } |
| mInFlight.clear(); |
| } |
| } else { |
| // the next of our alarms is now in flight. reattribute the wakelock. |
| if (mInFlight.size() > 0) { |
| InFlight inFlight = mInFlight.get(0); |
| setWakelockWorkSource(inFlight.mPendingIntent, inFlight.mWorkSource); |
| } else { |
| // should never happen |
| mLog.w("Alarm wakelock still held but sent queue empty"); |
| mWakeLock.setWorkSource(null); |
| } |
| } |
| } |
| } |
| } |
| } |