The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2006 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.server; |
| 18 | |
| 19 | import android.app.ActivityManagerNative; |
| 20 | import android.app.AlarmManager; |
| 21 | import android.app.IAlarmManager; |
| 22 | import android.app.PendingIntent; |
| 23 | import android.content.BroadcastReceiver; |
| 24 | import android.content.Context; |
| 25 | import android.content.Intent; |
| 26 | import android.content.IntentFilter; |
| 27 | import android.content.pm.PackageManager; |
| 28 | import android.net.Uri; |
| 29 | import android.os.Binder; |
| 30 | import android.os.Bundle; |
| 31 | import android.os.Handler; |
| 32 | import android.os.Message; |
| 33 | import android.os.PowerManager; |
| 34 | import android.os.SystemClock; |
| 35 | import android.os.SystemProperties; |
| 36 | import android.text.TextUtils; |
| 37 | import android.text.format.Time; |
| 38 | import android.util.EventLog; |
| 39 | import android.util.Log; |
| 40 | |
| 41 | import java.io.FileDescriptor; |
| 42 | import java.io.PrintWriter; |
| 43 | import java.util.ArrayList; |
| 44 | import java.util.Calendar; |
| 45 | import java.util.Collections; |
| 46 | import java.util.Comparator; |
Mike Lockwood | 1f7b413 | 2009-11-20 15:12:51 -0500 | [diff] [blame] | 47 | import java.util.Date; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 48 | import java.util.HashMap; |
| 49 | import java.util.Iterator; |
| 50 | import java.util.Map; |
| 51 | import java.util.TimeZone; |
| 52 | |
| 53 | class AlarmManagerService extends IAlarmManager.Stub { |
| 54 | // The threshold for how long an alarm can be late before we print a |
| 55 | // warning message. The time duration is in milliseconds. |
| 56 | private static final long LATE_ALARM_THRESHOLD = 10 * 1000; |
| 57 | |
| 58 | private static final int RTC_WAKEUP_MASK = 1 << AlarmManager.RTC_WAKEUP; |
| 59 | private static final int RTC_MASK = 1 << AlarmManager.RTC; |
| 60 | private static final int ELAPSED_REALTIME_WAKEUP_MASK = 1 << AlarmManager.ELAPSED_REALTIME_WAKEUP; |
| 61 | private static final int ELAPSED_REALTIME_MASK = 1 << AlarmManager.ELAPSED_REALTIME; |
| 62 | private static final int TIME_CHANGED_MASK = 1 << 16; |
| 63 | |
| 64 | private static final String TAG = "AlarmManager"; |
| 65 | private static final String ClockReceiver_TAG = "ClockReceiver"; |
| 66 | private static final boolean localLOGV = false; |
| 67 | private static final int ALARM_EVENT = 1; |
| 68 | private static final String TIMEZONE_PROPERTY = "persist.sys.timezone"; |
| 69 | |
| 70 | private static final Intent mBackgroundIntent |
| 71 | = new Intent().addFlags(Intent.FLAG_FROM_BACKGROUND); |
| 72 | |
| 73 | private final Context mContext; |
| 74 | |
| 75 | private Object mLock = new Object(); |
| 76 | |
| 77 | private final ArrayList<Alarm> mRtcWakeupAlarms = new ArrayList<Alarm>(); |
| 78 | private final ArrayList<Alarm> mRtcAlarms = new ArrayList<Alarm>(); |
| 79 | private final ArrayList<Alarm> mElapsedRealtimeWakeupAlarms = new ArrayList<Alarm>(); |
| 80 | private final ArrayList<Alarm> mElapsedRealtimeAlarms = new ArrayList<Alarm>(); |
| 81 | private final IncreasingTimeOrder mIncreasingTimeOrder = new IncreasingTimeOrder(); |
| 82 | |
| 83 | // slots corresponding with the inexact-repeat interval buckets, |
| 84 | // ordered from shortest to longest |
| 85 | private static final long sInexactSlotIntervals[] = { |
| 86 | AlarmManager.INTERVAL_FIFTEEN_MINUTES, |
| 87 | AlarmManager.INTERVAL_HALF_HOUR, |
| 88 | AlarmManager.INTERVAL_HOUR, |
| 89 | AlarmManager.INTERVAL_HALF_DAY, |
| 90 | AlarmManager.INTERVAL_DAY |
| 91 | }; |
| 92 | private long mInexactDeliveryTimes[] = { 0, 0, 0, 0, 0}; |
| 93 | |
| 94 | private int mDescriptor; |
| 95 | private int mBroadcastRefCount = 0; |
| 96 | private PowerManager.WakeLock mWakeLock; |
| 97 | private final AlarmThread mWaitThread = new AlarmThread(); |
| 98 | private final AlarmHandler mHandler = new AlarmHandler(); |
| 99 | private ClockReceiver mClockReceiver; |
| 100 | private UninstallReceiver mUninstallReceiver; |
| 101 | private final ResultReceiver mResultReceiver = new ResultReceiver(); |
| 102 | private final PendingIntent mTimeTickSender; |
| 103 | private final PendingIntent mDateChangeSender; |
| 104 | |
| 105 | private static final class FilterStats { |
| 106 | int count; |
| 107 | } |
| 108 | |
| 109 | private static final class BroadcastStats { |
| 110 | long aggregateTime; |
| 111 | int numWakeup; |
| 112 | long startTime; |
| 113 | int nesting; |
| 114 | HashMap<Intent.FilterComparison, FilterStats> filterStats |
| 115 | = new HashMap<Intent.FilterComparison, FilterStats>(); |
| 116 | } |
| 117 | |
| 118 | private final HashMap<String, BroadcastStats> mBroadcastStats |
| 119 | = new HashMap<String, BroadcastStats>(); |
| 120 | |
| 121 | public AlarmManagerService(Context context) { |
| 122 | mContext = context; |
| 123 | mDescriptor = init(); |
| 124 | PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE); |
| 125 | mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); |
| 126 | |
| 127 | mTimeTickSender = PendingIntent.getBroadcast(context, 0, |
| 128 | new Intent(Intent.ACTION_TIME_TICK).addFlags( |
| 129 | Intent.FLAG_RECEIVER_REGISTERED_ONLY), 0); |
Dianne Hackborn | 1c633fc | 2009-12-08 19:45:14 -0800 | [diff] [blame^] | 130 | Intent intent = new Intent(Intent.ACTION_DATE_CHANGED); |
| 131 | intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); |
| 132 | mDateChangeSender = PendingIntent.getBroadcast(context, 0, intent, 0); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 133 | |
| 134 | // now that we have initied the driver schedule the alarm |
| 135 | mClockReceiver= new ClockReceiver(); |
| 136 | mClockReceiver.scheduleTimeTickEvent(); |
| 137 | mClockReceiver.scheduleDateChangedEvent(); |
| 138 | mUninstallReceiver = new UninstallReceiver(); |
| 139 | |
| 140 | if (mDescriptor != -1) { |
| 141 | mWaitThread.start(); |
| 142 | } else { |
| 143 | Log.w(TAG, "Failed to open alarm driver. Falling back to a handler."); |
| 144 | } |
| 145 | } |
| 146 | |
| 147 | protected void finalize() throws Throwable { |
| 148 | try { |
| 149 | close(mDescriptor); |
| 150 | } finally { |
| 151 | super.finalize(); |
| 152 | } |
| 153 | } |
| 154 | |
| 155 | public void set(int type, long triggerAtTime, PendingIntent operation) { |
| 156 | setRepeating(type, triggerAtTime, 0, operation); |
| 157 | } |
| 158 | |
| 159 | public void setRepeating(int type, long triggerAtTime, long interval, |
| 160 | PendingIntent operation) { |
| 161 | if (operation == null) { |
| 162 | Log.w(TAG, "set/setRepeating ignored because there is no intent"); |
| 163 | return; |
| 164 | } |
| 165 | synchronized (mLock) { |
| 166 | Alarm alarm = new Alarm(); |
| 167 | alarm.type = type; |
| 168 | alarm.when = triggerAtTime; |
| 169 | alarm.repeatInterval = interval; |
| 170 | alarm.operation = operation; |
| 171 | |
| 172 | // Remove this alarm if already scheduled. |
| 173 | removeLocked(operation); |
| 174 | |
| 175 | if (localLOGV) Log.v(TAG, "set: " + alarm); |
| 176 | |
| 177 | int index = addAlarmLocked(alarm); |
| 178 | if (index == 0) { |
| 179 | setLocked(alarm); |
| 180 | } |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | public void setInexactRepeating(int type, long triggerAtTime, long interval, |
| 185 | PendingIntent operation) { |
| 186 | if (operation == null) { |
| 187 | Log.w(TAG, "setInexactRepeating ignored because there is no intent"); |
| 188 | return; |
| 189 | } |
| 190 | |
| 191 | // find the slot in the delivery-times array that we will use |
| 192 | int intervalSlot; |
| 193 | for (intervalSlot = 0; intervalSlot < sInexactSlotIntervals.length; intervalSlot++) { |
| 194 | if (sInexactSlotIntervals[intervalSlot] == interval) { |
| 195 | break; |
| 196 | } |
| 197 | } |
| 198 | |
| 199 | // Non-bucket intervals just fall back to the less-efficient |
| 200 | // unbucketed recurring alarm implementation |
| 201 | if (intervalSlot >= sInexactSlotIntervals.length) { |
| 202 | setRepeating(type, triggerAtTime, interval, operation); |
| 203 | return; |
| 204 | } |
| 205 | |
| 206 | // Align bucketed alarm deliveries by trying to match |
| 207 | // the shortest-interval bucket already scheduled |
| 208 | long bucketTime = 0; |
| 209 | for (int slot = 0; slot < mInexactDeliveryTimes.length; slot++) { |
| 210 | if (mInexactDeliveryTimes[slot] > 0) { |
| 211 | bucketTime = mInexactDeliveryTimes[slot]; |
| 212 | break; |
| 213 | } |
| 214 | } |
| 215 | |
| 216 | if (bucketTime == 0) { |
| 217 | // If nothing is scheduled yet, just start at the requested time |
| 218 | bucketTime = triggerAtTime; |
| 219 | } else { |
| 220 | // Align the new alarm with the existing bucketed sequence. To achieve |
| 221 | // alignment, we slide the start time around by min{interval, slot interval} |
| 222 | long adjustment = (interval <= sInexactSlotIntervals[intervalSlot]) |
| 223 | ? interval : sInexactSlotIntervals[intervalSlot]; |
| 224 | |
| 225 | // The bucket may have started in the past; adjust |
| 226 | while (bucketTime < triggerAtTime) { |
| 227 | bucketTime += adjustment; |
| 228 | } |
| 229 | |
| 230 | // Or the bucket may be set to start more than an interval beyond |
| 231 | // our requested trigger time; pull it back to meet our needs |
| 232 | while (bucketTime > triggerAtTime + adjustment) { |
| 233 | bucketTime -= adjustment; |
| 234 | } |
| 235 | } |
| 236 | |
| 237 | // Remember where this bucket started (reducing the amount of later |
| 238 | // fixup required) and set the alarm with the new, bucketed start time. |
| 239 | if (localLOGV) Log.v(TAG, "setInexactRepeating: interval=" + interval |
| 240 | + " bucketTime=" + bucketTime); |
| 241 | mInexactDeliveryTimes[intervalSlot] = bucketTime; |
| 242 | setRepeating(type, bucketTime, interval, operation); |
| 243 | } |
| 244 | |
| 245 | public void setTimeZone(String tz) { |
| 246 | mContext.enforceCallingOrSelfPermission( |
| 247 | "android.permission.SET_TIME_ZONE", |
| 248 | "setTimeZone"); |
| 249 | |
| 250 | if (TextUtils.isEmpty(tz)) return; |
| 251 | TimeZone zone = TimeZone.getTimeZone(tz); |
| 252 | // Prevent reentrant calls from stepping on each other when writing |
| 253 | // the time zone property |
| 254 | boolean timeZoneWasChanged = false; |
| 255 | synchronized (this) { |
| 256 | String current = SystemProperties.get(TIMEZONE_PROPERTY); |
| 257 | if (current == null || !current.equals(zone.getID())) { |
| 258 | if (localLOGV) Log.v(TAG, "timezone changed: " + current + ", new=" + zone.getID()); |
| 259 | timeZoneWasChanged = true; |
| 260 | SystemProperties.set(TIMEZONE_PROPERTY, zone.getID()); |
| 261 | } |
| 262 | |
| 263 | // Update the kernel timezone information |
| 264 | // Kernel tracks time offsets as 'minutes west of GMT' |
Mike Lockwood | 1f7b413 | 2009-11-20 15:12:51 -0500 | [diff] [blame] | 265 | int gmtOffset = zone.getRawOffset(); |
| 266 | if (zone.inDaylightTime(new Date(System.currentTimeMillis()))) { |
| 267 | gmtOffset += zone.getDSTSavings(); |
| 268 | } |
| 269 | setKernelTimezone(mDescriptor, -(gmtOffset / 60000)); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 270 | } |
| 271 | |
| 272 | TimeZone.setDefault(null); |
| 273 | |
| 274 | if (timeZoneWasChanged) { |
| 275 | Intent intent = new Intent(Intent.ACTION_TIMEZONE_CHANGED); |
Dianne Hackborn | 1c633fc | 2009-12-08 19:45:14 -0800 | [diff] [blame^] | 276 | intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 277 | intent.putExtra("time-zone", zone.getID()); |
| 278 | mContext.sendBroadcast(intent); |
| 279 | } |
| 280 | } |
| 281 | |
| 282 | public void remove(PendingIntent operation) { |
| 283 | if (operation == null) { |
| 284 | return; |
| 285 | } |
| 286 | synchronized (mLock) { |
| 287 | removeLocked(operation); |
| 288 | } |
| 289 | } |
| 290 | |
| 291 | public void removeLocked(PendingIntent operation) { |
| 292 | removeLocked(mRtcWakeupAlarms, operation); |
| 293 | removeLocked(mRtcAlarms, operation); |
| 294 | removeLocked(mElapsedRealtimeWakeupAlarms, operation); |
| 295 | removeLocked(mElapsedRealtimeAlarms, operation); |
| 296 | } |
| 297 | |
| 298 | private void removeLocked(ArrayList<Alarm> alarmList, |
| 299 | PendingIntent operation) { |
| 300 | if (alarmList.size() <= 0) { |
| 301 | return; |
| 302 | } |
| 303 | |
| 304 | // iterator over the list removing any it where the intent match |
| 305 | Iterator<Alarm> it = alarmList.iterator(); |
| 306 | |
| 307 | while (it.hasNext()) { |
| 308 | Alarm alarm = it.next(); |
| 309 | if (alarm.operation.equals(operation)) { |
| 310 | it.remove(); |
| 311 | } |
| 312 | } |
| 313 | } |
| 314 | |
| 315 | public void removeLocked(String packageName) { |
| 316 | removeLocked(mRtcWakeupAlarms, packageName); |
| 317 | removeLocked(mRtcAlarms, packageName); |
| 318 | removeLocked(mElapsedRealtimeWakeupAlarms, packageName); |
| 319 | removeLocked(mElapsedRealtimeAlarms, packageName); |
| 320 | } |
| 321 | |
| 322 | private void removeLocked(ArrayList<Alarm> alarmList, |
| 323 | String packageName) { |
| 324 | if (alarmList.size() <= 0) { |
| 325 | return; |
| 326 | } |
| 327 | |
| 328 | // iterator over the list removing any it where the intent match |
| 329 | Iterator<Alarm> it = alarmList.iterator(); |
| 330 | |
| 331 | while (it.hasNext()) { |
| 332 | Alarm alarm = it.next(); |
| 333 | if (alarm.operation.getTargetPackage().equals(packageName)) { |
| 334 | it.remove(); |
| 335 | } |
| 336 | } |
| 337 | } |
| 338 | |
| 339 | private ArrayList<Alarm> getAlarmList(int type) { |
| 340 | switch (type) { |
| 341 | case AlarmManager.RTC_WAKEUP: return mRtcWakeupAlarms; |
| 342 | case AlarmManager.RTC: return mRtcAlarms; |
| 343 | case AlarmManager.ELAPSED_REALTIME_WAKEUP: return mElapsedRealtimeWakeupAlarms; |
| 344 | case AlarmManager.ELAPSED_REALTIME: return mElapsedRealtimeAlarms; |
| 345 | } |
| 346 | |
| 347 | return null; |
| 348 | } |
| 349 | |
| 350 | private int addAlarmLocked(Alarm alarm) { |
| 351 | ArrayList<Alarm> alarmList = getAlarmList(alarm.type); |
| 352 | |
| 353 | int index = Collections.binarySearch(alarmList, alarm, mIncreasingTimeOrder); |
| 354 | if (index < 0) { |
| 355 | index = 0 - index - 1; |
| 356 | } |
| 357 | if (localLOGV) Log.v(TAG, "Adding alarm " + alarm + " at " + index); |
| 358 | alarmList.add(index, alarm); |
| 359 | |
| 360 | if (localLOGV) { |
| 361 | // Display the list of alarms for this alarm type |
| 362 | Log.v(TAG, "alarms: " + alarmList.size() + " type: " + alarm.type); |
| 363 | int position = 0; |
| 364 | for (Alarm a : alarmList) { |
| 365 | Time time = new Time(); |
| 366 | time.set(a.when); |
| 367 | String timeStr = time.format("%b %d %I:%M:%S %p"); |
| 368 | Log.v(TAG, position + ": " + timeStr |
| 369 | + " " + a.operation.getTargetPackage()); |
| 370 | position += 1; |
| 371 | } |
| 372 | } |
| 373 | |
| 374 | return index; |
| 375 | } |
| 376 | |
| 377 | public long timeToNextAlarm() { |
| 378 | long nextAlarm = 0xfffffffffffffffl; |
| 379 | synchronized (mLock) { |
| 380 | for (int i=AlarmManager.RTC_WAKEUP; |
| 381 | i<=AlarmManager.ELAPSED_REALTIME; i++) { |
| 382 | ArrayList<Alarm> alarmList = getAlarmList(i); |
| 383 | if (alarmList.size() > 0) { |
| 384 | Alarm a = alarmList.get(0); |
| 385 | if (a.when < nextAlarm) { |
| 386 | nextAlarm = a.when; |
| 387 | } |
| 388 | } |
| 389 | } |
| 390 | } |
| 391 | return nextAlarm; |
| 392 | } |
| 393 | |
| 394 | private void setLocked(Alarm alarm) |
| 395 | { |
| 396 | if (mDescriptor != -1) |
| 397 | { |
| 398 | set(mDescriptor, alarm.type, (alarm.when * 1000 * 1000)); |
| 399 | } |
| 400 | else |
| 401 | { |
| 402 | Message msg = Message.obtain(); |
| 403 | msg.what = ALARM_EVENT; |
| 404 | |
| 405 | mHandler.removeMessages(ALARM_EVENT); |
| 406 | mHandler.sendMessageAtTime(msg, alarm.when); |
| 407 | } |
| 408 | } |
| 409 | |
| 410 | @Override |
| 411 | protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| 412 | if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) |
| 413 | != PackageManager.PERMISSION_GRANTED) { |
| 414 | pw.println("Permission Denial: can't dump AlarmManager from from pid=" |
| 415 | + Binder.getCallingPid() |
| 416 | + ", uid=" + Binder.getCallingUid()); |
| 417 | return; |
| 418 | } |
| 419 | |
| 420 | synchronized (mLock) { |
| 421 | pw.println("Current Alarm Manager state:"); |
Dianne Hackborn | 1d442e0 | 2009-04-20 18:14:05 -0700 | [diff] [blame] | 422 | if (mRtcWakeupAlarms.size() > 0 || mRtcAlarms.size() > 0) { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 423 | pw.println(" "); |
Dianne Hackborn | 1d442e0 | 2009-04-20 18:14:05 -0700 | [diff] [blame] | 424 | pw.print(" Realtime wakeup (now="); |
| 425 | pw.print(System.currentTimeMillis()); pw.println("):"); |
| 426 | if (mRtcWakeupAlarms.size() > 0) { |
| 427 | dumpAlarmList(pw, mRtcWakeupAlarms, " ", "RTC_WAKEUP"); |
| 428 | } |
| 429 | if (mRtcAlarms.size() > 0) { |
| 430 | dumpAlarmList(pw, mRtcAlarms, " ", "RTC"); |
| 431 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 432 | } |
Dianne Hackborn | 1d442e0 | 2009-04-20 18:14:05 -0700 | [diff] [blame] | 433 | if (mElapsedRealtimeWakeupAlarms.size() > 0 || mElapsedRealtimeAlarms.size() > 0) { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 434 | pw.println(" "); |
Dianne Hackborn | 1d442e0 | 2009-04-20 18:14:05 -0700 | [diff] [blame] | 435 | pw.print(" Elapsed realtime wakeup (now="); |
| 436 | pw.print(SystemClock.elapsedRealtime()); pw.println("):"); |
| 437 | if (mElapsedRealtimeWakeupAlarms.size() > 0) { |
| 438 | dumpAlarmList(pw, mElapsedRealtimeWakeupAlarms, " ", "ELAPSED_WAKEUP"); |
| 439 | } |
| 440 | if (mElapsedRealtimeAlarms.size() > 0) { |
| 441 | dumpAlarmList(pw, mElapsedRealtimeAlarms, " ", "ELAPSED"); |
| 442 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 443 | } |
| 444 | |
| 445 | pw.println(" "); |
Dianne Hackborn | 1d442e0 | 2009-04-20 18:14:05 -0700 | [diff] [blame] | 446 | pw.print(" Broadcast ref count: "); pw.println(mBroadcastRefCount); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 447 | |
| 448 | pw.println(" "); |
| 449 | pw.println(" Alarm Stats:"); |
| 450 | for (Map.Entry<String, BroadcastStats> be : mBroadcastStats.entrySet()) { |
| 451 | BroadcastStats bs = be.getValue(); |
Dianne Hackborn | 1d442e0 | 2009-04-20 18:14:05 -0700 | [diff] [blame] | 452 | pw.print(" "); pw.println(be.getKey()); |
| 453 | pw.print(" "); pw.print(bs.aggregateTime); |
| 454 | pw.print("ms running, "); pw.print(bs.numWakeup); |
| 455 | pw.println(" wakeups"); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 456 | for (Map.Entry<Intent.FilterComparison, FilterStats> fe |
| 457 | : bs.filterStats.entrySet()) { |
Dianne Hackborn | 1d442e0 | 2009-04-20 18:14:05 -0700 | [diff] [blame] | 458 | pw.print(" "); pw.print(fe.getValue().count); |
| 459 | pw.print(" alarms: "); |
| 460 | pw.println(fe.getKey().getIntent().toShortString(true, false)); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 461 | } |
| 462 | } |
| 463 | } |
| 464 | } |
| 465 | |
| 466 | private static final void dumpAlarmList(PrintWriter pw, ArrayList<Alarm> list, String prefix, String label) { |
| 467 | for (int i=list.size()-1; i>=0; i--) { |
| 468 | Alarm a = list.get(i); |
Dianne Hackborn | 1d442e0 | 2009-04-20 18:14:05 -0700 | [diff] [blame] | 469 | pw.print(prefix); pw.print(label); pw.print(" #"); pw.print(i); |
| 470 | pw.print(": "); pw.println(a); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 471 | a.dump(pw, prefix + " "); |
| 472 | } |
| 473 | } |
| 474 | |
| 475 | private native int init(); |
| 476 | private native void close(int fd); |
| 477 | private native void set(int fd, int type, long nanoseconds); |
| 478 | private native int waitForAlarm(int fd); |
| 479 | private native int setKernelTimezone(int fd, int minuteswest); |
| 480 | |
| 481 | private void triggerAlarmsLocked(ArrayList<Alarm> alarmList, |
| 482 | ArrayList<Alarm> triggerList, |
| 483 | long now) |
| 484 | { |
| 485 | Iterator<Alarm> it = alarmList.iterator(); |
| 486 | ArrayList<Alarm> repeats = new ArrayList<Alarm>(); |
| 487 | |
| 488 | while (it.hasNext()) |
| 489 | { |
| 490 | Alarm alarm = it.next(); |
| 491 | |
| 492 | if (localLOGV) Log.v(TAG, "Checking active alarm when=" + alarm.when + " " + alarm); |
| 493 | |
| 494 | if (alarm.when > now) { |
| 495 | // don't fire alarms in the future |
| 496 | break; |
| 497 | } |
| 498 | |
| 499 | // If the alarm is late, then print a warning message. |
| 500 | // Note that this can happen if the user creates a new event on |
| 501 | // the Calendar app with a reminder that is in the past. In that |
| 502 | // case, the reminder alarm will fire immediately. |
| 503 | if (localLOGV && now - alarm.when > LATE_ALARM_THRESHOLD) { |
| 504 | Log.v(TAG, "alarm is late! alarm time: " + alarm.when |
| 505 | + " now: " + now + " delay (in seconds): " |
| 506 | + (now - alarm.when) / 1000); |
| 507 | } |
| 508 | |
| 509 | // Recurring alarms may have passed several alarm intervals while the |
| 510 | // phone was asleep or off, so pass a trigger count when sending them. |
| 511 | if (localLOGV) Log.v(TAG, "Alarm triggering: " + alarm); |
| 512 | alarm.count = 1; |
| 513 | if (alarm.repeatInterval > 0) { |
| 514 | // this adjustment will be zero if we're late by |
| 515 | // less than one full repeat interval |
| 516 | alarm.count += (now - alarm.when) / alarm.repeatInterval; |
| 517 | } |
| 518 | triggerList.add(alarm); |
| 519 | |
| 520 | // remove the alarm from the list |
| 521 | it.remove(); |
| 522 | |
| 523 | // if it repeats queue it up to be read-added to the list |
| 524 | if (alarm.repeatInterval > 0) { |
| 525 | repeats.add(alarm); |
| 526 | } |
| 527 | } |
| 528 | |
| 529 | // reset any repeating alarms. |
| 530 | it = repeats.iterator(); |
| 531 | while (it.hasNext()) { |
| 532 | Alarm alarm = it.next(); |
| 533 | alarm.when += alarm.count * alarm.repeatInterval; |
| 534 | addAlarmLocked(alarm); |
| 535 | } |
| 536 | |
| 537 | if (alarmList.size() > 0) { |
| 538 | setLocked(alarmList.get(0)); |
| 539 | } |
| 540 | } |
| 541 | |
| 542 | /** |
| 543 | * This Comparator sorts Alarms into increasing time order. |
| 544 | */ |
| 545 | public static class IncreasingTimeOrder implements Comparator<Alarm> { |
| 546 | public int compare(Alarm a1, Alarm a2) { |
| 547 | long when1 = a1.when; |
| 548 | long when2 = a2.when; |
| 549 | if (when1 - when2 > 0) { |
| 550 | return 1; |
| 551 | } |
| 552 | if (when1 - when2 < 0) { |
| 553 | return -1; |
| 554 | } |
| 555 | return 0; |
| 556 | } |
| 557 | } |
| 558 | |
| 559 | private static class Alarm { |
| 560 | public int type; |
| 561 | public int count; |
| 562 | public long when; |
| 563 | public long repeatInterval; |
| 564 | public PendingIntent operation; |
| 565 | |
| 566 | public Alarm() { |
| 567 | when = 0; |
| 568 | repeatInterval = 0; |
| 569 | operation = null; |
| 570 | } |
| 571 | |
| 572 | @Override |
| 573 | public String toString() |
| 574 | { |
Dianne Hackborn | 1d442e0 | 2009-04-20 18:14:05 -0700 | [diff] [blame] | 575 | StringBuilder sb = new StringBuilder(128); |
| 576 | sb.append("Alarm{"); |
| 577 | sb.append(Integer.toHexString(System.identityHashCode(this))); |
| 578 | sb.append(" type "); |
| 579 | sb.append(type); |
| 580 | sb.append(" "); |
| 581 | sb.append(operation.getTargetPackage()); |
| 582 | sb.append('}'); |
| 583 | return sb.toString(); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 584 | } |
| 585 | |
| 586 | public void dump(PrintWriter pw, String prefix) |
| 587 | { |
Dianne Hackborn | 1d442e0 | 2009-04-20 18:14:05 -0700 | [diff] [blame] | 588 | pw.print(prefix); pw.print("type="); pw.print(type); |
| 589 | pw.print(" when="); pw.print(when); |
| 590 | pw.print(" repeatInterval="); pw.print(repeatInterval); |
| 591 | pw.print(" count="); pw.println(count); |
| 592 | pw.print(prefix); pw.print("operation="); pw.println(operation); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 593 | } |
| 594 | } |
| 595 | |
| 596 | private class AlarmThread extends Thread |
| 597 | { |
| 598 | public AlarmThread() |
| 599 | { |
| 600 | super("AlarmManager"); |
| 601 | } |
| 602 | |
| 603 | public void run() |
| 604 | { |
| 605 | while (true) |
| 606 | { |
| 607 | int result = waitForAlarm(mDescriptor); |
| 608 | |
| 609 | ArrayList<Alarm> triggerList = new ArrayList<Alarm>(); |
| 610 | |
| 611 | if ((result & TIME_CHANGED_MASK) != 0) { |
| 612 | remove(mTimeTickSender); |
| 613 | mClockReceiver.scheduleTimeTickEvent(); |
Dianne Hackborn | 1c633fc | 2009-12-08 19:45:14 -0800 | [diff] [blame^] | 614 | Intent intent = new Intent(Intent.ACTION_TIME_CHANGED); |
| 615 | intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); |
| 616 | mContext.sendBroadcast(intent); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 617 | } |
| 618 | |
| 619 | synchronized (mLock) { |
| 620 | final long nowRTC = System.currentTimeMillis(); |
| 621 | final long nowELAPSED = SystemClock.elapsedRealtime(); |
| 622 | if (localLOGV) Log.v( |
| 623 | TAG, "Checking for alarms... rtc=" + nowRTC |
| 624 | + ", elapsed=" + nowELAPSED); |
| 625 | |
| 626 | if ((result & RTC_WAKEUP_MASK) != 0) |
| 627 | triggerAlarmsLocked(mRtcWakeupAlarms, triggerList, nowRTC); |
| 628 | |
| 629 | if ((result & RTC_MASK) != 0) |
| 630 | triggerAlarmsLocked(mRtcAlarms, triggerList, nowRTC); |
| 631 | |
| 632 | if ((result & ELAPSED_REALTIME_WAKEUP_MASK) != 0) |
| 633 | triggerAlarmsLocked(mElapsedRealtimeWakeupAlarms, triggerList, nowELAPSED); |
| 634 | |
| 635 | if ((result & ELAPSED_REALTIME_MASK) != 0) |
| 636 | triggerAlarmsLocked(mElapsedRealtimeAlarms, triggerList, nowELAPSED); |
| 637 | |
| 638 | // now trigger the alarms |
| 639 | Iterator<Alarm> it = triggerList.iterator(); |
| 640 | while (it.hasNext()) { |
| 641 | Alarm alarm = it.next(); |
| 642 | try { |
| 643 | if (localLOGV) Log.v(TAG, "sending alarm " + alarm); |
| 644 | alarm.operation.send(mContext, 0, |
| 645 | mBackgroundIntent.putExtra( |
| 646 | Intent.EXTRA_ALARM_COUNT, alarm.count), |
| 647 | mResultReceiver, mHandler); |
| 648 | |
| 649 | // we have an active broadcast so stay awake. |
| 650 | if (mBroadcastRefCount == 0) { |
| 651 | mWakeLock.acquire(); |
| 652 | } |
| 653 | mBroadcastRefCount++; |
| 654 | |
| 655 | BroadcastStats bs = getStatsLocked(alarm.operation); |
| 656 | if (bs.nesting == 0) { |
| 657 | bs.startTime = nowELAPSED; |
| 658 | } else { |
| 659 | bs.nesting++; |
| 660 | } |
| 661 | if (alarm.type == AlarmManager.ELAPSED_REALTIME_WAKEUP |
| 662 | || alarm.type == AlarmManager.RTC_WAKEUP) { |
| 663 | bs.numWakeup++; |
| 664 | ActivityManagerNative.noteWakeupAlarm( |
| 665 | alarm.operation); |
| 666 | } |
| 667 | } catch (PendingIntent.CanceledException e) { |
| 668 | if (alarm.repeatInterval > 0) { |
| 669 | // This IntentSender is no longer valid, but this |
| 670 | // is a repeating alarm, so toss the hoser. |
| 671 | remove(alarm.operation); |
| 672 | } |
| 673 | } catch (RuntimeException e) { |
| 674 | Log.w(TAG, "Failure sending alarm.", e); |
| 675 | } |
| 676 | } |
| 677 | } |
| 678 | } |
| 679 | } |
| 680 | } |
| 681 | |
| 682 | private class AlarmHandler extends Handler { |
| 683 | public static final int ALARM_EVENT = 1; |
| 684 | public static final int MINUTE_CHANGE_EVENT = 2; |
| 685 | public static final int DATE_CHANGE_EVENT = 3; |
| 686 | |
| 687 | public AlarmHandler() { |
| 688 | } |
| 689 | |
| 690 | public void handleMessage(Message msg) { |
| 691 | if (msg.what == ALARM_EVENT) { |
| 692 | ArrayList<Alarm> triggerList = new ArrayList<Alarm>(); |
| 693 | synchronized (mLock) { |
| 694 | final long nowRTC = System.currentTimeMillis(); |
| 695 | triggerAlarmsLocked(mRtcWakeupAlarms, triggerList, nowRTC); |
| 696 | triggerAlarmsLocked(mRtcAlarms, triggerList, nowRTC); |
| 697 | triggerAlarmsLocked(mElapsedRealtimeWakeupAlarms, triggerList, nowRTC); |
| 698 | triggerAlarmsLocked(mElapsedRealtimeAlarms, triggerList, nowRTC); |
| 699 | } |
| 700 | |
| 701 | // now trigger the alarms without the lock held |
| 702 | Iterator<Alarm> it = triggerList.iterator(); |
| 703 | while (it.hasNext()) |
| 704 | { |
| 705 | Alarm alarm = it.next(); |
| 706 | try { |
| 707 | alarm.operation.send(); |
| 708 | } catch (PendingIntent.CanceledException e) { |
| 709 | if (alarm.repeatInterval > 0) { |
| 710 | // This IntentSender is no longer valid, but this |
| 711 | // is a repeating alarm, so toss the hoser. |
| 712 | remove(alarm.operation); |
| 713 | } |
| 714 | } |
| 715 | } |
| 716 | } |
| 717 | } |
| 718 | } |
| 719 | |
| 720 | class ClockReceiver extends BroadcastReceiver { |
| 721 | public ClockReceiver() { |
| 722 | IntentFilter filter = new IntentFilter(); |
| 723 | filter.addAction(Intent.ACTION_TIME_TICK); |
| 724 | filter.addAction(Intent.ACTION_DATE_CHANGED); |
| 725 | mContext.registerReceiver(this, filter); |
| 726 | } |
| 727 | |
| 728 | @Override |
| 729 | public void onReceive(Context context, Intent intent) { |
| 730 | if (intent.getAction().equals(Intent.ACTION_TIME_TICK)) { |
| 731 | scheduleTimeTickEvent(); |
| 732 | } else if (intent.getAction().equals(Intent.ACTION_DATE_CHANGED)) { |
| 733 | // Since the kernel does not keep track of DST, we need to |
| 734 | // reset the TZ information at the beginning of each day |
| 735 | // based off of the current Zone gmt offset + userspace tracked |
| 736 | // daylight savings information. |
| 737 | TimeZone zone = TimeZone.getTimeZone(SystemProperties.get(TIMEZONE_PROPERTY)); |
| 738 | int gmtOffset = (zone.getRawOffset() + zone.getDSTSavings()) / 60000; |
| 739 | |
| 740 | setKernelTimezone(mDescriptor, -(gmtOffset)); |
| 741 | scheduleDateChangedEvent(); |
| 742 | } |
| 743 | } |
| 744 | |
| 745 | public void scheduleTimeTickEvent() { |
| 746 | Calendar calendar = Calendar.getInstance(); |
| 747 | calendar.setTimeInMillis(System.currentTimeMillis()); |
| 748 | calendar.add(Calendar.MINUTE, 1); |
| 749 | calendar.set(Calendar.SECOND, 0); |
| 750 | calendar.set(Calendar.MILLISECOND, 0); |
| 751 | |
| 752 | set(AlarmManager.RTC, calendar.getTimeInMillis(), mTimeTickSender); |
| 753 | } |
| 754 | |
| 755 | public void scheduleDateChangedEvent() { |
| 756 | Calendar calendar = Calendar.getInstance(); |
| 757 | calendar.setTimeInMillis(System.currentTimeMillis()); |
| 758 | calendar.set(Calendar.HOUR, 0); |
| 759 | calendar.set(Calendar.MINUTE, 0); |
| 760 | calendar.set(Calendar.SECOND, 0); |
| 761 | calendar.set(Calendar.MILLISECOND, 0); |
| 762 | calendar.add(Calendar.DAY_OF_MONTH, 1); |
| 763 | |
| 764 | set(AlarmManager.RTC, calendar.getTimeInMillis(), mDateChangeSender); |
| 765 | } |
| 766 | } |
| 767 | |
| 768 | class UninstallReceiver extends BroadcastReceiver { |
| 769 | public UninstallReceiver() { |
| 770 | IntentFilter filter = new IntentFilter(); |
| 771 | filter.addAction(Intent.ACTION_PACKAGE_REMOVED); |
| 772 | filter.addAction(Intent.ACTION_PACKAGE_RESTARTED); |
| 773 | filter.addDataScheme("package"); |
| 774 | mContext.registerReceiver(this, filter); |
| 775 | } |
| 776 | |
| 777 | @Override |
| 778 | public void onReceive(Context context, Intent intent) { |
| 779 | synchronized (mLock) { |
| 780 | Uri data = intent.getData(); |
| 781 | if (data != null) { |
| 782 | String pkg = data.getSchemeSpecificPart(); |
| 783 | removeLocked(pkg); |
| 784 | mBroadcastStats.remove(pkg); |
| 785 | } |
| 786 | } |
| 787 | } |
| 788 | } |
| 789 | |
| 790 | private final BroadcastStats getStatsLocked(PendingIntent pi) { |
| 791 | String pkg = pi.getTargetPackage(); |
| 792 | BroadcastStats bs = mBroadcastStats.get(pkg); |
| 793 | if (bs == null) { |
| 794 | bs = new BroadcastStats(); |
| 795 | mBroadcastStats.put(pkg, bs); |
| 796 | } |
| 797 | return bs; |
| 798 | } |
| 799 | |
| 800 | class ResultReceiver implements PendingIntent.OnFinished { |
| 801 | public void onSendFinished(PendingIntent pi, Intent intent, int resultCode, |
| 802 | String resultData, Bundle resultExtras) { |
| 803 | synchronized (mLock) { |
| 804 | BroadcastStats bs = getStatsLocked(pi); |
| 805 | if (bs != null) { |
| 806 | bs.nesting--; |
| 807 | if (bs.nesting <= 0) { |
| 808 | bs.nesting = 0; |
| 809 | bs.aggregateTime += SystemClock.elapsedRealtime() |
| 810 | - bs.startTime; |
| 811 | Intent.FilterComparison fc = new Intent.FilterComparison(intent); |
| 812 | FilterStats fs = bs.filterStats.get(fc); |
| 813 | if (fs == null) { |
| 814 | fs = new FilterStats(); |
| 815 | bs.filterStats.put(fc, fs); |
| 816 | } |
| 817 | fs.count++; |
| 818 | } |
| 819 | } |
| 820 | mBroadcastRefCount--; |
| 821 | if (mBroadcastRefCount == 0) { |
| 822 | mWakeLock.release(); |
| 823 | } |
| 824 | } |
| 825 | } |
| 826 | } |
| 827 | } |