| /* |
| * 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.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.Message; |
| import android.os.PowerManager; |
| import android.os.SystemClock; |
| import android.os.SystemProperties; |
| import android.text.TextUtils; |
| import android.text.format.Time; |
| import android.util.EventLog; |
| import android.util.Slog; |
| |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| import java.util.Calendar; |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.Date; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.TimeZone; |
| |
| class AlarmManagerService extends IAlarmManager.Stub { |
| // 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 << AlarmManager.RTC_WAKEUP; |
| private static final int RTC_MASK = 1 << AlarmManager.RTC; |
| private static final int ELAPSED_REALTIME_WAKEUP_MASK = 1 << AlarmManager.ELAPSED_REALTIME_WAKEUP; |
| private static final int ELAPSED_REALTIME_MASK = 1 << AlarmManager.ELAPSED_REALTIME; |
| private static final int TIME_CHANGED_MASK = 1 << 16; |
| |
| private static final String TAG = "AlarmManager"; |
| private static final String ClockReceiver_TAG = "ClockReceiver"; |
| private static final boolean localLOGV = false; |
| private static final int ALARM_EVENT = 1; |
| private static final String TIMEZONE_PROPERTY = "persist.sys.timezone"; |
| |
| private static final Intent mBackgroundIntent |
| = new Intent().addFlags(Intent.FLAG_FROM_BACKGROUND); |
| |
| private final Context mContext; |
| |
| private Object mLock = new Object(); |
| |
| private final ArrayList<Alarm> mRtcWakeupAlarms = new ArrayList<Alarm>(); |
| private final ArrayList<Alarm> mRtcAlarms = new ArrayList<Alarm>(); |
| private final ArrayList<Alarm> mElapsedRealtimeWakeupAlarms = new ArrayList<Alarm>(); |
| private final ArrayList<Alarm> mElapsedRealtimeAlarms = new ArrayList<Alarm>(); |
| private final IncreasingTimeOrder mIncreasingTimeOrder = new IncreasingTimeOrder(); |
| |
| // slots corresponding with the inexact-repeat interval buckets, |
| // ordered from shortest to longest |
| private static final long sInexactSlotIntervals[] = { |
| AlarmManager.INTERVAL_FIFTEEN_MINUTES, |
| AlarmManager.INTERVAL_HALF_HOUR, |
| AlarmManager.INTERVAL_HOUR, |
| AlarmManager.INTERVAL_HALF_DAY, |
| AlarmManager.INTERVAL_DAY |
| }; |
| private long mInexactDeliveryTimes[] = { 0, 0, 0, 0, 0}; |
| |
| private int mDescriptor; |
| private int mBroadcastRefCount = 0; |
| private PowerManager.WakeLock mWakeLock; |
| private final AlarmThread mWaitThread = new AlarmThread(); |
| private final AlarmHandler mHandler = new AlarmHandler(); |
| private ClockReceiver mClockReceiver; |
| private UninstallReceiver mUninstallReceiver; |
| private final ResultReceiver mResultReceiver = new ResultReceiver(); |
| private final PendingIntent mTimeTickSender; |
| private final PendingIntent mDateChangeSender; |
| |
| private static final class FilterStats { |
| int count; |
| } |
| |
| private static final class BroadcastStats { |
| long aggregateTime; |
| int numWakeup; |
| long startTime; |
| int nesting; |
| HashMap<Intent.FilterComparison, FilterStats> filterStats |
| = new HashMap<Intent.FilterComparison, FilterStats>(); |
| } |
| |
| private final HashMap<String, BroadcastStats> mBroadcastStats |
| = new HashMap<String, BroadcastStats>(); |
| |
| public AlarmManagerService(Context context) { |
| mContext = context; |
| mDescriptor = init(); |
| PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE); |
| mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); |
| |
| mTimeTickSender = PendingIntent.getBroadcast(context, 0, |
| new Intent(Intent.ACTION_TIME_TICK).addFlags( |
| Intent.FLAG_RECEIVER_REGISTERED_ONLY), 0); |
| Intent intent = new Intent(Intent.ACTION_DATE_CHANGED); |
| intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); |
| mDateChangeSender = PendingIntent.getBroadcast(context, 0, intent, 0); |
| |
| // now that we have initied the driver schedule the alarm |
| mClockReceiver= new ClockReceiver(); |
| mClockReceiver.scheduleTimeTickEvent(); |
| mClockReceiver.scheduleDateChangedEvent(); |
| mUninstallReceiver = new UninstallReceiver(); |
| |
| if (mDescriptor != -1) { |
| mWaitThread.start(); |
| } else { |
| Slog.w(TAG, "Failed to open alarm driver. Falling back to a handler."); |
| } |
| } |
| |
| protected void finalize() throws Throwable { |
| try { |
| close(mDescriptor); |
| } finally { |
| super.finalize(); |
| } |
| } |
| |
| public void set(int type, long triggerAtTime, PendingIntent operation) { |
| setRepeating(type, triggerAtTime, 0, operation); |
| } |
| |
| public void setRepeating(int type, long triggerAtTime, long interval, |
| PendingIntent operation) { |
| if (operation == null) { |
| Slog.w(TAG, "set/setRepeating ignored because there is no intent"); |
| return; |
| } |
| synchronized (mLock) { |
| Alarm alarm = new Alarm(); |
| alarm.type = type; |
| alarm.when = triggerAtTime; |
| alarm.repeatInterval = interval; |
| alarm.operation = operation; |
| |
| // Remove this alarm if already scheduled. |
| removeLocked(operation); |
| |
| if (localLOGV) Slog.v(TAG, "set: " + alarm); |
| |
| int index = addAlarmLocked(alarm); |
| if (index == 0) { |
| setLocked(alarm); |
| } |
| } |
| } |
| |
| public void setInexactRepeating(int type, long triggerAtTime, long interval, |
| PendingIntent operation) { |
| if (operation == null) { |
| Slog.w(TAG, "setInexactRepeating ignored because there is no intent"); |
| return; |
| } |
| |
| // find the slot in the delivery-times array that we will use |
| int intervalSlot; |
| for (intervalSlot = 0; intervalSlot < sInexactSlotIntervals.length; intervalSlot++) { |
| if (sInexactSlotIntervals[intervalSlot] == interval) { |
| break; |
| } |
| } |
| |
| // Non-bucket intervals just fall back to the less-efficient |
| // unbucketed recurring alarm implementation |
| if (intervalSlot >= sInexactSlotIntervals.length) { |
| setRepeating(type, triggerAtTime, interval, operation); |
| return; |
| } |
| |
| // Align bucketed alarm deliveries by trying to match |
| // the shortest-interval bucket already scheduled |
| long bucketTime = 0; |
| for (int slot = 0; slot < mInexactDeliveryTimes.length; slot++) { |
| if (mInexactDeliveryTimes[slot] > 0) { |
| bucketTime = mInexactDeliveryTimes[slot]; |
| break; |
| } |
| } |
| |
| if (bucketTime == 0) { |
| // If nothing is scheduled yet, just start at the requested time |
| bucketTime = triggerAtTime; |
| } else { |
| // Align the new alarm with the existing bucketed sequence. To achieve |
| // alignment, we slide the start time around by min{interval, slot interval} |
| long adjustment = (interval <= sInexactSlotIntervals[intervalSlot]) |
| ? interval : sInexactSlotIntervals[intervalSlot]; |
| |
| // The bucket may have started in the past; adjust |
| while (bucketTime < triggerAtTime) { |
| bucketTime += adjustment; |
| } |
| |
| // Or the bucket may be set to start more than an interval beyond |
| // our requested trigger time; pull it back to meet our needs |
| while (bucketTime > triggerAtTime + adjustment) { |
| bucketTime -= adjustment; |
| } |
| } |
| |
| // Remember where this bucket started (reducing the amount of later |
| // fixup required) and set the alarm with the new, bucketed start time. |
| if (localLOGV) Slog.v(TAG, "setInexactRepeating: interval=" + interval |
| + " bucketTime=" + bucketTime); |
| mInexactDeliveryTimes[intervalSlot] = bucketTime; |
| setRepeating(type, bucketTime, interval, operation); |
| } |
| |
| public void setTime(long millis) { |
| mContext.enforceCallingOrSelfPermission( |
| "android.permission.SET_TIME", |
| "setTime"); |
| |
| SystemClock.setCurrentTimeMillis(millis); |
| } |
| |
| public void setTimeZone(String tz) { |
| mContext.enforceCallingOrSelfPermission( |
| "android.permission.SET_TIME_ZONE", |
| "setTimeZone"); |
| |
| 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.getRawOffset(); |
| if (zone.inDaylightTime(new Date(System.currentTimeMillis()))) { |
| gmtOffset += zone.getDSTSavings(); |
| } |
| setKernelTimezone(mDescriptor, -(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()); |
| mContext.sendBroadcast(intent); |
| } |
| } |
| |
| public void remove(PendingIntent operation) { |
| if (operation == null) { |
| return; |
| } |
| synchronized (mLock) { |
| removeLocked(operation); |
| } |
| } |
| |
| public void removeLocked(PendingIntent operation) { |
| removeLocked(mRtcWakeupAlarms, operation); |
| removeLocked(mRtcAlarms, operation); |
| removeLocked(mElapsedRealtimeWakeupAlarms, operation); |
| removeLocked(mElapsedRealtimeAlarms, operation); |
| } |
| |
| private void removeLocked(ArrayList<Alarm> alarmList, |
| PendingIntent operation) { |
| if (alarmList.size() <= 0) { |
| return; |
| } |
| |
| // iterator over the list removing any it where the intent match |
| Iterator<Alarm> it = alarmList.iterator(); |
| |
| while (it.hasNext()) { |
| Alarm alarm = it.next(); |
| if (alarm.operation.equals(operation)) { |
| it.remove(); |
| } |
| } |
| } |
| |
| public void removeLocked(String packageName) { |
| removeLocked(mRtcWakeupAlarms, packageName); |
| removeLocked(mRtcAlarms, packageName); |
| removeLocked(mElapsedRealtimeWakeupAlarms, packageName); |
| removeLocked(mElapsedRealtimeAlarms, packageName); |
| } |
| |
| private void removeLocked(ArrayList<Alarm> alarmList, |
| String packageName) { |
| if (alarmList.size() <= 0) { |
| return; |
| } |
| |
| // iterator over the list removing any it where the intent match |
| Iterator<Alarm> it = alarmList.iterator(); |
| |
| while (it.hasNext()) { |
| Alarm alarm = it.next(); |
| if (alarm.operation.getTargetPackage().equals(packageName)) { |
| it.remove(); |
| } |
| } |
| } |
| |
| public boolean lookForPackageLocked(String packageName) { |
| return lookForPackageLocked(mRtcWakeupAlarms, packageName) |
| || lookForPackageLocked(mRtcAlarms, packageName) |
| || lookForPackageLocked(mElapsedRealtimeWakeupAlarms, packageName) |
| || lookForPackageLocked(mElapsedRealtimeAlarms, packageName); |
| } |
| |
| private boolean lookForPackageLocked(ArrayList<Alarm> alarmList, String packageName) { |
| for (int i=alarmList.size()-1; i>=0; i--) { |
| if (alarmList.get(i).operation.getTargetPackage().equals(packageName)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| private ArrayList<Alarm> getAlarmList(int type) { |
| switch (type) { |
| case AlarmManager.RTC_WAKEUP: return mRtcWakeupAlarms; |
| case AlarmManager.RTC: return mRtcAlarms; |
| case AlarmManager.ELAPSED_REALTIME_WAKEUP: return mElapsedRealtimeWakeupAlarms; |
| case AlarmManager.ELAPSED_REALTIME: return mElapsedRealtimeAlarms; |
| } |
| |
| return null; |
| } |
| |
| private int addAlarmLocked(Alarm alarm) { |
| ArrayList<Alarm> alarmList = getAlarmList(alarm.type); |
| |
| int index = Collections.binarySearch(alarmList, alarm, mIncreasingTimeOrder); |
| if (index < 0) { |
| index = 0 - index - 1; |
| } |
| if (localLOGV) Slog.v(TAG, "Adding alarm " + alarm + " at " + index); |
| alarmList.add(index, alarm); |
| |
| if (localLOGV) { |
| // Display the list of alarms for this alarm type |
| Slog.v(TAG, "alarms: " + alarmList.size() + " type: " + alarm.type); |
| int position = 0; |
| for (Alarm a : alarmList) { |
| Time time = new Time(); |
| time.set(a.when); |
| String timeStr = time.format("%b %d %I:%M:%S %p"); |
| Slog.v(TAG, position + ": " + timeStr |
| + " " + a.operation.getTargetPackage()); |
| position += 1; |
| } |
| } |
| |
| return index; |
| } |
| |
| public long timeToNextAlarm() { |
| long nextAlarm = Long.MAX_VALUE; |
| synchronized (mLock) { |
| for (int i=AlarmManager.RTC_WAKEUP; |
| i<=AlarmManager.ELAPSED_REALTIME; i++) { |
| ArrayList<Alarm> alarmList = getAlarmList(i); |
| if (alarmList.size() > 0) { |
| Alarm a = alarmList.get(0); |
| if (a.when < nextAlarm) { |
| nextAlarm = a.when; |
| } |
| } |
| } |
| } |
| return nextAlarm; |
| } |
| |
| private void setLocked(Alarm alarm) |
| { |
| if (mDescriptor != -1) |
| { |
| // The kernel never triggers alarms with negative wakeup times |
| // so we ensure they are positive. |
| long alarmSeconds, alarmNanoseconds; |
| if (alarm.when < 0) { |
| alarmSeconds = 0; |
| alarmNanoseconds = 0; |
| } else { |
| alarmSeconds = alarm.when / 1000; |
| alarmNanoseconds = (alarm.when % 1000) * 1000 * 1000; |
| } |
| |
| set(mDescriptor, alarm.type, alarmSeconds, alarmNanoseconds); |
| } |
| else |
| { |
| Message msg = Message.obtain(); |
| msg.what = ALARM_EVENT; |
| |
| mHandler.removeMessages(ALARM_EVENT); |
| mHandler.sendMessageAtTime(msg, alarm.when); |
| } |
| } |
| |
| @Override |
| protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| if (mContext.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; |
| } |
| |
| synchronized (mLock) { |
| pw.println("Current Alarm Manager state:"); |
| if (mRtcWakeupAlarms.size() > 0 || mRtcAlarms.size() > 0) { |
| pw.println(" "); |
| pw.print(" Realtime wakeup (now="); |
| pw.print(System.currentTimeMillis()); pw.println("):"); |
| if (mRtcWakeupAlarms.size() > 0) { |
| dumpAlarmList(pw, mRtcWakeupAlarms, " ", "RTC_WAKEUP"); |
| } |
| if (mRtcAlarms.size() > 0) { |
| dumpAlarmList(pw, mRtcAlarms, " ", "RTC"); |
| } |
| } |
| if (mElapsedRealtimeWakeupAlarms.size() > 0 || mElapsedRealtimeAlarms.size() > 0) { |
| pw.println(" "); |
| pw.print(" Elapsed realtime wakeup (now="); |
| pw.print(SystemClock.elapsedRealtime()); pw.println("):"); |
| if (mElapsedRealtimeWakeupAlarms.size() > 0) { |
| dumpAlarmList(pw, mElapsedRealtimeWakeupAlarms, " ", "ELAPSED_WAKEUP"); |
| } |
| if (mElapsedRealtimeAlarms.size() > 0) { |
| dumpAlarmList(pw, mElapsedRealtimeAlarms, " ", "ELAPSED"); |
| } |
| } |
| |
| pw.println(" "); |
| pw.print(" Broadcast ref count: "); pw.println(mBroadcastRefCount); |
| |
| pw.println(" "); |
| pw.println(" Alarm Stats:"); |
| for (Map.Entry<String, BroadcastStats> be : mBroadcastStats.entrySet()) { |
| BroadcastStats bs = be.getValue(); |
| pw.print(" "); pw.println(be.getKey()); |
| pw.print(" "); pw.print(bs.aggregateTime); |
| pw.print("ms running, "); pw.print(bs.numWakeup); |
| pw.println(" wakeups"); |
| for (Map.Entry<Intent.FilterComparison, FilterStats> fe |
| : bs.filterStats.entrySet()) { |
| pw.print(" "); pw.print(fe.getValue().count); |
| pw.print(" alarms: "); |
| pw.println(fe.getKey().getIntent().toShortString(true, false)); |
| } |
| } |
| } |
| } |
| |
| private static final void dumpAlarmList(PrintWriter pw, ArrayList<Alarm> list, String prefix, String label) { |
| 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 + " "); |
| } |
| } |
| |
| private native int init(); |
| private native void close(int fd); |
| private native void set(int fd, int type, long seconds, long nanoseconds); |
| private native int waitForAlarm(int fd); |
| private native int setKernelTimezone(int fd, int minuteswest); |
| |
| private void triggerAlarmsLocked(ArrayList<Alarm> alarmList, |
| ArrayList<Alarm> triggerList, |
| long now) |
| { |
| Iterator<Alarm> it = alarmList.iterator(); |
| ArrayList<Alarm> repeats = new ArrayList<Alarm>(); |
| |
| while (it.hasNext()) |
| { |
| Alarm alarm = it.next(); |
| |
| if (localLOGV) Slog.v(TAG, "Checking active alarm when=" + alarm.when + " " + alarm); |
| |
| if (alarm.when > now) { |
| // don't fire alarms in the future |
| break; |
| } |
| |
| // If the alarm is late, then print a warning message. |
| // Note that this can happen if the user creates a new event on |
| // the Calendar app with a reminder that is in the past. In that |
| // case, the reminder alarm will fire immediately. |
| if (localLOGV && now - alarm.when > LATE_ALARM_THRESHOLD) { |
| Slog.v(TAG, "alarm is late! alarm time: " + alarm.when |
| + " now: " + now + " delay (in seconds): " |
| + (now - alarm.when) / 1000); |
| } |
| |
| // Recurring alarms may have passed several alarm intervals while the |
| // phone was asleep or off, so pass a trigger count when sending them. |
| if (localLOGV) Slog.v(TAG, "Alarm triggering: " + alarm); |
| alarm.count = 1; |
| if (alarm.repeatInterval > 0) { |
| // this adjustment will be zero if we're late by |
| // less than one full repeat interval |
| alarm.count += (now - alarm.when) / alarm.repeatInterval; |
| } |
| triggerList.add(alarm); |
| |
| // remove the alarm from the list |
| it.remove(); |
| |
| // if it repeats queue it up to be read-added to the list |
| if (alarm.repeatInterval > 0) { |
| repeats.add(alarm); |
| } |
| } |
| |
| // reset any repeating alarms. |
| it = repeats.iterator(); |
| while (it.hasNext()) { |
| Alarm alarm = it.next(); |
| alarm.when += alarm.count * alarm.repeatInterval; |
| addAlarmLocked(alarm); |
| } |
| |
| if (alarmList.size() > 0) { |
| setLocked(alarmList.get(0)); |
| } |
| } |
| |
| /** |
| * 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 int type; |
| public int count; |
| public long when; |
| public long repeatInterval; |
| public PendingIntent operation; |
| |
| public Alarm() { |
| when = 0; |
| repeatInterval = 0; |
| operation = null; |
| } |
| |
| @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(" "); |
| sb.append(operation.getTargetPackage()); |
| sb.append('}'); |
| return sb.toString(); |
| } |
| |
| public void dump(PrintWriter pw, String prefix) |
| { |
| pw.print(prefix); pw.print("type="); pw.print(type); |
| pw.print(" when="); pw.print(when); |
| pw.print(" repeatInterval="); pw.print(repeatInterval); |
| pw.print(" count="); pw.println(count); |
| pw.print(prefix); pw.print("operation="); pw.println(operation); |
| } |
| } |
| |
| private class AlarmThread extends Thread |
| { |
| public AlarmThread() |
| { |
| super("AlarmManager"); |
| } |
| |
| public void run() |
| { |
| while (true) |
| { |
| int result = waitForAlarm(mDescriptor); |
| |
| ArrayList<Alarm> triggerList = new ArrayList<Alarm>(); |
| |
| if ((result & TIME_CHANGED_MASK) != 0) { |
| remove(mTimeTickSender); |
| mClockReceiver.scheduleTimeTickEvent(); |
| Intent intent = new Intent(Intent.ACTION_TIME_CHANGED); |
| intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); |
| mContext.sendBroadcast(intent); |
| } |
| |
| 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 ((result & RTC_WAKEUP_MASK) != 0) |
| triggerAlarmsLocked(mRtcWakeupAlarms, triggerList, nowRTC); |
| |
| if ((result & RTC_MASK) != 0) |
| triggerAlarmsLocked(mRtcAlarms, triggerList, nowRTC); |
| |
| if ((result & ELAPSED_REALTIME_WAKEUP_MASK) != 0) |
| triggerAlarmsLocked(mElapsedRealtimeWakeupAlarms, triggerList, nowELAPSED); |
| |
| if ((result & ELAPSED_REALTIME_MASK) != 0) |
| triggerAlarmsLocked(mElapsedRealtimeAlarms, triggerList, nowELAPSED); |
| |
| // now trigger the alarms |
| Iterator<Alarm> it = triggerList.iterator(); |
| while (it.hasNext()) { |
| Alarm alarm = it.next(); |
| try { |
| if (localLOGV) Slog.v(TAG, "sending alarm " + alarm); |
| alarm.operation.send(mContext, 0, |
| mBackgroundIntent.putExtra( |
| Intent.EXTRA_ALARM_COUNT, alarm.count), |
| mResultReceiver, mHandler); |
| |
| // we have an active broadcast so stay awake. |
| if (mBroadcastRefCount == 0) { |
| mWakeLock.acquire(); |
| } |
| mBroadcastRefCount++; |
| |
| BroadcastStats bs = getStatsLocked(alarm.operation); |
| if (bs.nesting == 0) { |
| bs.startTime = nowELAPSED; |
| } else { |
| bs.nesting++; |
| } |
| if (alarm.type == AlarmManager.ELAPSED_REALTIME_WAKEUP |
| || alarm.type == AlarmManager.RTC_WAKEUP) { |
| bs.numWakeup++; |
| ActivityManagerNative.noteWakeupAlarm( |
| alarm.operation); |
| } |
| } catch (PendingIntent.CanceledException e) { |
| if (alarm.repeatInterval > 0) { |
| // This IntentSender is no longer valid, but this |
| // is a repeating alarm, so toss the hoser. |
| remove(alarm.operation); |
| } |
| } catch (RuntimeException e) { |
| Slog.w(TAG, "Failure sending alarm.", e); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| 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(); |
| triggerAlarmsLocked(mRtcWakeupAlarms, triggerList, nowRTC); |
| triggerAlarmsLocked(mRtcAlarms, triggerList, nowRTC); |
| triggerAlarmsLocked(mElapsedRealtimeWakeupAlarms, triggerList, nowRTC); |
| triggerAlarmsLocked(mElapsedRealtimeAlarms, triggerList, nowRTC); |
| } |
| |
| // now trigger the alarms without the lock held |
| Iterator<Alarm> it = triggerList.iterator(); |
| while (it.hasNext()) |
| { |
| Alarm alarm = it.next(); |
| 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. |
| remove(alarm.operation); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| class ClockReceiver extends BroadcastReceiver { |
| public ClockReceiver() { |
| IntentFilter filter = new IntentFilter(); |
| filter.addAction(Intent.ACTION_TIME_TICK); |
| filter.addAction(Intent.ACTION_DATE_CHANGED); |
| mContext.registerReceiver(this, filter); |
| } |
| |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| if (intent.getAction().equals(Intent.ACTION_TIME_TICK)) { |
| 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.getRawOffset() + zone.getDSTSavings()) / 60000; |
| |
| setKernelTimezone(mDescriptor, -(gmtOffset)); |
| scheduleDateChangedEvent(); |
| } |
| } |
| |
| public void scheduleTimeTickEvent() { |
| Calendar calendar = Calendar.getInstance(); |
| calendar.setTimeInMillis(System.currentTimeMillis()); |
| calendar.add(Calendar.MINUTE, 1); |
| calendar.set(Calendar.SECOND, 0); |
| calendar.set(Calendar.MILLISECOND, 0); |
| |
| set(AlarmManager.RTC, calendar.getTimeInMillis(), mTimeTickSender); |
| } |
| |
| 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); |
| |
| set(AlarmManager.RTC, calendar.getTimeInMillis(), mDateChangeSender); |
| } |
| } |
| |
| 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"); |
| mContext.registerReceiver(this, filter); |
| // Register for events related to sdcard installation. |
| IntentFilter sdFilter = new IntentFilter(); |
| sdFilter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); |
| mContext.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_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); |
| mBroadcastStats.remove(pkg); |
| } |
| } |
| } |
| } |
| } |
| |
| private final BroadcastStats getStatsLocked(PendingIntent pi) { |
| String pkg = pi.getTargetPackage(); |
| BroadcastStats bs = mBroadcastStats.get(pkg); |
| if (bs == null) { |
| bs = new BroadcastStats(); |
| mBroadcastStats.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) { |
| BroadcastStats bs = getStatsLocked(pi); |
| if (bs != null) { |
| bs.nesting--; |
| if (bs.nesting <= 0) { |
| bs.nesting = 0; |
| bs.aggregateTime += SystemClock.elapsedRealtime() |
| - bs.startTime; |
| Intent.FilterComparison fc = new Intent.FilterComparison(intent); |
| FilterStats fs = bs.filterStats.get(fc); |
| if (fs == null) { |
| fs = new FilterStats(); |
| bs.filterStats.put(fc, fs); |
| } |
| fs.count++; |
| } |
| } |
| mBroadcastRefCount--; |
| if (mBroadcastRefCount == 0) { |
| mWakeLock.release(); |
| } |
| } |
| } |
| } |
| } |
