Implement user-settable power save whitelist.
The whitelist is now maintained by DeviceIdleController,
which is moving out into its own independent system service.
Network stats now queries it for the whitelist, instead of
collecting that itself.
Also did a few improvements in alarm manager -- made the
code for moving alarms out of the pending list more robust,
and fixed the debug output to always print the contents of
the pending list even if we aren't in a pending state. (That
would have helped me identify the problem much earlier.)
Change-Id: I0f7119d4c553c3af4d77b2f71246fa6e2c13c561
diff --git a/services/core/java/com/android/server/AlarmManagerService.java b/services/core/java/com/android/server/AlarmManagerService.java
index 0e3867d..745c190 100644
--- a/services/core/java/com/android/server/AlarmManagerService.java
+++ b/services/core/java/com/android/server/AlarmManagerService.java
@@ -461,7 +461,7 @@
// to run during this time are placed in mPendingWhileIdleAlarms
Alarm mPendingIdleUntil = null;
Alarm mNextWakeFromIdle = null;
- final ArrayList<Alarm> mPendingWhileIdleAlarms = new ArrayList<>();
+ ArrayList<Alarm> mPendingWhileIdleAlarms = new ArrayList<>();
public AlarmManagerService(Context context) {
super(context);
@@ -567,10 +567,14 @@
void restorePendingWhileIdleAlarmsLocked() {
// Bring pending alarms back into the main list.
- final long nowElapsed = SystemClock.elapsedRealtime();
- for (int i=mPendingWhileIdleAlarms.size() - 1; i >= 0 && mPendingIdleUntil == null; i--) {
- Alarm a = mPendingWhileIdleAlarms.remove(i);
- reAddAlarmLocked(a, nowElapsed, false);
+ if (mPendingWhileIdleAlarms.size() > 0) {
+ ArrayList<Alarm> alarms = mPendingWhileIdleAlarms;
+ mPendingWhileIdleAlarms = new ArrayList<>();
+ final long nowElapsed = SystemClock.elapsedRealtime();
+ for (int i=alarms.size() - 1; i >= 0; i--) {
+ Alarm a = alarms.get(i);
+ reAddAlarmLocked(a, nowElapsed, false);
+ }
}
// Reschedule everything.
@@ -1053,11 +1057,16 @@
dumpAlarmList(pw, b.alarms, " ", nowELAPSED, nowRTC, sdf);
}
}
- if (mPendingIdleUntil != null) {
+ if (mPendingIdleUntil != null || mPendingWhileIdleAlarms.size() > 0) {
pw.println();
pw.println("Idle mode state:");
- pw.print(" Idling until: "); pw.println(mPendingIdleUntil);
- mPendingIdleUntil.dump(pw, " ", nowRTC, nowELAPSED, sdf);
+ pw.print(" Idling until: ");
+ if (mPendingIdleUntil != null) {
+ pw.println(mPendingIdleUntil);
+ mPendingIdleUntil.dump(pw, " ", nowRTC, nowELAPSED, sdf);
+ } else {
+ pw.println("null");
+ }
pw.println(" Pending alarms:");
dumpAlarmList(pw, mPendingWhileIdleAlarms, " ", nowELAPSED, nowRTC, sdf);
}
diff --git a/services/core/java/com/android/server/DeviceIdleController.java b/services/core/java/com/android/server/DeviceIdleController.java
new file mode 100644
index 0000000..b7bc0f0
--- /dev/null
+++ b/services/core/java/com/android/server/DeviceIdleController.java
@@ -0,0 +1,879 @@
+/*
+ * Copyright (C) 2015 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.AlarmManager;
+import android.app.PendingIntent;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.hardware.Sensor;
+import android.hardware.SensorManager;
+import android.hardware.TriggerEvent;
+import android.hardware.TriggerEventListener;
+import android.hardware.display.DisplayManager;
+import android.net.INetworkPolicyManager;
+import android.os.Binder;
+import android.os.Environment;
+import android.os.FileUtils;
+import android.os.Handler;
+import android.os.IDeviceIdleController;
+import android.os.Looper;
+import android.os.Message;
+import android.os.PowerManager;
+import android.os.PowerManagerInternal;
+import android.os.RemoteException;
+import android.os.ServiceManager;
+import android.os.SystemClock;
+import android.os.UserHandle;
+import android.util.ArrayMap;
+import android.util.ArraySet;
+import android.util.Slog;
+import android.util.SparseBooleanArray;
+import android.util.TimeUtils;
+import android.util.Xml;
+import android.view.Display;
+import com.android.internal.app.IBatteryStats;
+import com.android.internal.os.AtomicFile;
+import com.android.internal.os.BackgroundThread;
+import com.android.internal.util.FastXmlSerializer;
+import com.android.internal.util.XmlUtils;
+import com.android.server.am.BatteryStatsService;
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+import org.xmlpull.v1.XmlSerializer;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileDescriptor;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.PrintWriter;
+
+/**
+ * Keeps track of device idleness and drives low power mode based on that.
+ */
+public class DeviceIdleController extends SystemService {
+ private static final String TAG = "DeviceIdleController";
+
+ public static final String SERVICE_NAME = "deviceidle";
+
+ private static final String ACTION_STEP_IDLE_STATE =
+ "com.android.server.device_idle.STEP_IDLE_STATE";
+
+ // TODO: These need to be moved to system settings.
+
+ /**
+ * This is the time, after becoming inactive, at which we start looking at the
+ * motion sensor to determine if the device is being left alone. We don't do this
+ * immediately after going inactive just because we don't want to be continually running
+ * the significant motion sensor whenever the screen is off.
+ */
+ private static final long DEFAULT_INACTIVE_TIMEOUT = 30*60*1000L;
+ /**
+ * This is the time, after seeing motion, that we wait after becoming inactive from
+ * that until we start looking for motion again.
+ */
+ private static final long DEFAULT_MOTION_INACTIVE_TIMEOUT = 10*60*1000L;
+ /**
+ * This is the time, after the inactive timeout elapses, that we will wait looking
+ * for significant motion until we truly consider the device to be idle.
+ */
+ private static final long DEFAULT_IDLE_AFTER_INACTIVE_TIMEOUT = 30*60*1000L;
+ /**
+ * This is the initial time, after being idle, that we will allow ourself to be back
+ * in the IDLE_PENDING state allowing the system to run normally until we return to idle.
+ */
+ private static final long DEFAULT_IDLE_PENDING_TIMEOUT = 5*60*1000L;
+ /**
+ * Maximum pending idle timeout (time spent running) we will be allowed to use.
+ */
+ private static final long DEFAULT_MAX_IDLE_PENDING_TIMEOUT = 10*60*1000L;
+ /**
+ * Scaling factor to apply to current pending idle timeout each time we cycle through
+ * that state.
+ */
+ private static final float DEFAULT_IDLE_PENDING_FACTOR = 2f;
+ /**
+ * This is the initial time that we want to sit in the idle state before waking up
+ * again to return to pending idle and allowing normal work to run.
+ */
+ private static final long DEFAULT_IDLE_TIMEOUT = 60*60*1000L;
+ /**
+ * Maximum idle duration we will be allowed to use.
+ */
+ private static final long DEFAULT_MAX_IDLE_TIMEOUT = 6*60*60*1000L;
+ /**
+ * Scaling factor to apply to current idle timeout each time we cycle through that state.
+ */
+ private static final float DEFAULT_IDLE_FACTOR = 2f;
+ /**
+ * This is the minimum time we will allow until the next upcoming alarm for us to
+ * actually go in to idle mode.
+ */
+ private static final long DEFAULT_MIN_TIME_TO_ALARM = 60*60*1000L;
+
+ private AlarmManager mAlarmManager;
+ private IBatteryStats mBatteryStats;
+ private PowerManagerInternal mLocalPowerManager;
+ private INetworkPolicyManager mNetworkPolicyManager;
+ private DisplayManager mDisplayManager;
+ private SensorManager mSensorManager;
+ private Sensor mSigMotionSensor;
+ private PendingIntent mAlarmIntent;
+ private Intent mIdleIntent;
+ private Display mCurDisplay;
+ private boolean mScreenOn;
+ private boolean mCharging;
+ private boolean mSigMotionActive;
+
+ /** Device is currently active. */
+ private static final int STATE_ACTIVE = 0;
+ /** Device is inactve (screen off, no motion) and we are waiting to for idle. */
+ private static final int STATE_INACTIVE = 1;
+ /** Device is past the initial inactive period, and waiting for the next idle period. */
+ private static final int STATE_IDLE_PENDING = 2;
+ /** Device is in the idle state, trying to stay asleep as much as possible. */
+ private static final int STATE_IDLE = 3;
+ /** Device is in the idle state, but temporarily out of idle to do regular maintenance. */
+ private static final int STATE_IDLE_MAINTENANCE = 4;
+ private static String stateToString(int state) {
+ switch (state) {
+ case STATE_ACTIVE: return "ACTIVE";
+ case STATE_INACTIVE: return "INACTIVE";
+ case STATE_IDLE_PENDING: return "IDLE_PENDING";
+ case STATE_IDLE: return "IDLE";
+ case STATE_IDLE_MAINTENANCE: return "IDLE_MAINTENANCE";
+ default: return Integer.toString(state);
+ }
+ }
+
+ private int mState;
+
+ private long mInactiveTimeout;
+ private long mNextAlarmTime;
+ private long mNextIdlePendingDelay;
+ private long mNextIdleDelay;
+
+ public final AtomicFile mConfigFile;
+
+ /**
+ * Package names the system has white-listed to opt out of power save restrictions.
+ */
+ private final ArrayMap<String, Integer> mPowerSaveWhitelistApps = new ArrayMap<>();
+
+ /**
+ * Package names the user has white-listed to opt out of power save restrictions.
+ */
+ private final ArrayMap<String, Integer> mPowerSaveWhitelistUserApps = new ArrayMap<>();
+
+ /**
+ * UIDs that have been white-listed to opt out of power save restrictions.
+ */
+ private final SparseBooleanArray mPowerSaveWhitelistAppIds = new SparseBooleanArray();
+
+ private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
+ @Override public void onReceive(Context context, Intent intent) {
+ if (Intent.ACTION_BATTERY_CHANGED.equals(intent.getAction())) {
+ int plugged = intent.getIntExtra("plugged", 0);
+ updateChargingLocked(plugged != 0);
+ } else if (ACTION_STEP_IDLE_STATE.equals(intent.getAction())) {
+ synchronized (DeviceIdleController.this) {
+ stepIdleStateLocked();
+ }
+ }
+ }
+ };
+
+ private final DisplayManager.DisplayListener mDisplayListener
+ = new DisplayManager.DisplayListener() {
+ @Override public void onDisplayAdded(int displayId) {
+ }
+
+ @Override public void onDisplayRemoved(int displayId) {
+ }
+
+ @Override public void onDisplayChanged(int displayId) {
+ if (displayId == Display.DEFAULT_DISPLAY) {
+ synchronized (DeviceIdleController.this) {
+ updateDisplayLocked();
+ }
+ }
+ }
+ };
+
+ private final TriggerEventListener mSigMotionListener = new TriggerEventListener() {
+ @Override public void onTrigger(TriggerEvent event) {
+ synchronized (DeviceIdleController.this) {
+ significantMotionLocked();
+ }
+ }
+ };
+
+ static final int MSG_WRITE_CONFIG = 1;
+ static final int MSG_REPORT_IDLE_ON = 2;
+ static final int MSG_REPORT_IDLE_OFF = 3;
+ static final int MSG_REPORT_ACTIVE = 4;
+
+ final class MyHandler extends Handler {
+ MyHandler(Looper looper) {
+ super(looper);
+ }
+
+ @Override public void handleMessage(Message msg) {
+ switch (msg.what) {
+ case MSG_WRITE_CONFIG: {
+ handleWriteConfigFile();
+ } break;
+ case MSG_REPORT_IDLE_ON: {
+ mLocalPowerManager.setDeviceIdleMode(true);
+ try {
+ mNetworkPolicyManager.setDeviceIdleMode(true);
+ mBatteryStats.noteDeviceIdleMode(true, false, false);
+ } catch (RemoteException e) {
+ }
+ getContext().sendBroadcastAsUser(mIdleIntent, UserHandle.ALL);
+ } break;
+ case MSG_REPORT_IDLE_OFF: {
+ mLocalPowerManager.setDeviceIdleMode(false);
+ try {
+ mNetworkPolicyManager.setDeviceIdleMode(false);
+ mBatteryStats.noteDeviceIdleMode(false, false, false);
+ } catch (RemoteException e) {
+ }
+ getContext().sendBroadcastAsUser(mIdleIntent, UserHandle.ALL);
+ } break;
+ case MSG_REPORT_ACTIVE: {
+ boolean fromMotion = msg.arg1 != 0;
+ boolean needBroadcast = msg.arg2 != 0;
+ mLocalPowerManager.setDeviceIdleMode(false);
+ try {
+ mNetworkPolicyManager.setDeviceIdleMode(false);
+ mBatteryStats.noteDeviceIdleMode(false, !fromMotion, fromMotion);
+ } catch (RemoteException e) {
+ }
+ if (needBroadcast) {
+ getContext().sendBroadcastAsUser(mIdleIntent, UserHandle.ALL);
+ }
+ } break;
+ }
+ }
+ }
+
+ final MyHandler mHandler;
+
+ private final class BinderService extends IDeviceIdleController.Stub {
+ @Override public void addPowerSaveWhitelistApp(String name) {
+ getContext().enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER,
+ null);
+ addPowerSaveWhitelistAppInternal(name);
+ }
+
+ @Override public void removePowerSaveWhitelistApp(String name) {
+ getContext().enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER,
+ null);
+ removePowerSaveWhitelistAppInternal(name);
+ }
+
+ @Override public String[] getSystemPowerWhitelist() {
+ return getSystemPowerWhitelistInternal();
+ }
+
+ @Override public String[] getFullPowerWhitelist() {
+ return getFullPowerWhitelistInternal();
+ }
+
+ @Override public int[] getAppIdWhitelist() {
+ return getAppIdWhitelistInternal();
+ }
+
+ @Override protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
+ DeviceIdleController.this.dump(fd, pw, args);
+ }
+ }
+
+ public DeviceIdleController(Context context) {
+ super(context);
+ mConfigFile = new AtomicFile(new File(getSystemDir(), "deviceidle.xml"));
+ mHandler = new MyHandler(BackgroundThread.getHandler().getLooper());
+ }
+
+ private static File getSystemDir() {
+ return new File(Environment.getDataDirectory(), "system");
+ }
+
+ @Override
+ public void onStart() {
+ final PackageManager pm = getContext().getPackageManager();
+
+ synchronized (this) {
+ SystemConfig sysConfig = SystemConfig.getInstance();
+ ArraySet<String> allowPower = sysConfig.getAllowInPowerSave();
+ for (int i=0; i<allowPower.size(); i++) {
+ String pkg = allowPower.valueAt(i);
+ try {
+ ApplicationInfo ai = pm.getApplicationInfo(pkg, 0);
+ if ((ai.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
+ mPowerSaveWhitelistApps.put(ai.packageName,
+ UserHandle.getAppId(ai.uid));
+ }
+ } catch (PackageManager.NameNotFoundException e) {
+ }
+ }
+
+ readConfigFileLocked();
+ updateWhitelistAppIdsLocked();
+
+ mScreenOn = true;
+ // Start out assuming we are charging. If we aren't, we will at least get
+ // a battery update the next time the level drops.
+ mCharging = true;
+ mState = STATE_ACTIVE;
+ mInactiveTimeout = DEFAULT_INACTIVE_TIMEOUT;
+ }
+
+ publishBinderService(SERVICE_NAME, new BinderService());
+ }
+
+ @Override
+ public void onBootPhase(int phase) {
+ if (phase == PHASE_SYSTEM_SERVICES_READY) {
+ synchronized (this) {
+ mAlarmManager = (AlarmManager) getContext().getSystemService(Context.ALARM_SERVICE);
+ mBatteryStats = BatteryStatsService.getService();
+ mLocalPowerManager = getLocalService(PowerManagerInternal.class);
+ mNetworkPolicyManager = INetworkPolicyManager.Stub.asInterface(
+ ServiceManager.getService(Context.NETWORK_POLICY_SERVICE));
+ mDisplayManager = (DisplayManager) getContext().getSystemService(
+ Context.DISPLAY_SERVICE);
+ mSensorManager = (SensorManager) getContext().getSystemService(Context.SENSOR_SERVICE);
+ mSigMotionSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_SIGNIFICANT_MOTION);
+
+ Intent intent = new Intent(ACTION_STEP_IDLE_STATE)
+ .setPackage("android")
+ .setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
+ mAlarmIntent = PendingIntent.getBroadcast(getContext(), 0, intent, 0);
+
+ mIdleIntent = new Intent(PowerManager.ACTION_DEVICE_IDLE_MODE_CHANGED);
+ mIdleIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
+
+ IntentFilter filter = new IntentFilter();
+ filter.addAction(Intent.ACTION_BATTERY_CHANGED);
+ filter.addAction(ACTION_STEP_IDLE_STATE);
+ getContext().registerReceiver(mReceiver, filter);
+
+ mDisplayManager.registerDisplayListener(mDisplayListener, null);
+ updateDisplayLocked();
+ }
+ }
+ }
+
+ public boolean addPowerSaveWhitelistAppInternal(String name) {
+ synchronized (this) {
+ try {
+ ApplicationInfo ai = getContext().getPackageManager().getApplicationInfo(name, 0);
+ if (mPowerSaveWhitelistUserApps.put(name, UserHandle.getAppId(ai.uid)) == null) {
+ reportPowerSaveWhitelistChangedLocked();
+ updateWhitelistAppIdsLocked();
+ writeConfigFileLocked();
+ }
+ return true;
+ } catch (PackageManager.NameNotFoundException e) {
+ return false;
+ }
+ }
+ }
+
+ public boolean removePowerSaveWhitelistAppInternal(String name) {
+ synchronized (this) {
+ if (mPowerSaveWhitelistUserApps.remove(name) != null) {
+ reportPowerSaveWhitelistChangedLocked();
+ updateWhitelistAppIdsLocked();
+ writeConfigFileLocked();
+ return true;
+ }
+ }
+ return false;
+ }
+
+ public String[] getSystemPowerWhitelistInternal() {
+ synchronized (this) {
+ int size = mPowerSaveWhitelistApps.size();
+ String[] apps = new String[size];
+ for (int i = 0; i < mPowerSaveWhitelistApps.size(); i++) {
+ apps[i] = mPowerSaveWhitelistApps.keyAt(i);
+ }
+ return apps;
+ }
+ }
+
+ public String[] getFullPowerWhitelistInternal() {
+ synchronized (this) {
+ int size = mPowerSaveWhitelistApps.size() + mPowerSaveWhitelistUserApps.size();
+ String[] apps = new String[size];
+ int cur = 0;
+ for (int i = 0; i < mPowerSaveWhitelistApps.size(); i++) {
+ apps[cur] = mPowerSaveWhitelistApps.keyAt(i);
+ cur++;
+ }
+ for (int i = 0; i < mPowerSaveWhitelistUserApps.size(); i++) {
+ apps[cur] = mPowerSaveWhitelistUserApps.keyAt(i);
+ cur++;
+ }
+ return apps;
+ }
+ }
+
+ public int[] getAppIdWhitelistInternal() {
+ synchronized (this) {
+ int size = mPowerSaveWhitelistAppIds.size();
+ int[] appids = new int[size];
+ for (int i = 0; i < size; i++) {
+ appids[i] = mPowerSaveWhitelistAppIds.keyAt(i);
+ }
+ return appids;
+ }
+ }
+
+ void updateDisplayLocked() {
+ mCurDisplay = mDisplayManager.getDisplay(Display.DEFAULT_DISPLAY);
+ // We consider any situation where the display is showing something to be it on,
+ // because if there is anything shown we are going to be updating it at some
+ // frequency so can't be allowed to go into deep sleeps.
+ boolean screenOn = mCurDisplay.getState() != Display.STATE_OFF;;
+ if (!screenOn && mScreenOn) {
+ mScreenOn = false;
+ becomeInactiveIfAppropriateLocked();
+ } else if (screenOn) {
+ mScreenOn = true;
+ becomeActiveLocked("screen");
+ }
+ }
+
+ void updateChargingLocked(boolean charging) {
+ if (!charging && mCharging) {
+ mCharging = false;
+ becomeInactiveIfAppropriateLocked();
+ } else if (charging) {
+ mCharging = charging;
+ becomeActiveLocked("charging");
+ }
+ }
+
+ void scheduleReportActiveLocked(boolean fromMotion) {
+ Message msg = mHandler.obtainMessage(MSG_REPORT_ACTIVE, fromMotion ? 1 : 0,
+ mState == STATE_IDLE ? 1 : 0);
+ mHandler.sendMessage(msg);
+ }
+
+ void becomeActiveLocked(String reason) {
+ if (mState != STATE_ACTIVE) {
+ EventLogTags.writeDeviceIdle(STATE_ACTIVE, reason);
+ scheduleReportActiveLocked(false);
+ mState = STATE_ACTIVE;
+ mInactiveTimeout = DEFAULT_INACTIVE_TIMEOUT;
+ mNextIdlePendingDelay = 0;
+ mNextIdleDelay = 0;
+ cancelAlarmLocked();
+ stopMonitoringSignificantMotion();
+ }
+ }
+
+ void becomeInactiveIfAppropriateLocked() {
+ if (!mScreenOn && !mCharging && mState == STATE_ACTIVE) {
+ // Screen has turned off; we are now going to become inactive and start
+ // waiting to see if we will ultimately go idle.
+ mState = STATE_INACTIVE;
+ mNextIdlePendingDelay = 0;
+ mNextIdleDelay = 0;
+ scheduleAlarmLocked(mInactiveTimeout, false);
+ EventLogTags.writeDeviceIdle(mState, "no activity");
+ }
+ }
+
+ void stepIdleStateLocked() {
+ EventLogTags.writeDeviceIdleStep();
+
+ final long now = SystemClock.elapsedRealtime();
+ if ((now+DEFAULT_MIN_TIME_TO_ALARM) > mAlarmManager.getNextWakeFromIdleTime()) {
+ // Whoops, there is an upcoming alarm. We don't actually want to go idle.
+ if (mState != STATE_ACTIVE) {
+ becomeActiveLocked("alarm");
+ }
+ return;
+ }
+
+ switch (mState) {
+ case STATE_INACTIVE:
+ // We have now been inactive long enough, it is time to start looking
+ // for significant motion and sleep some more while doing so.
+ startMonitoringSignificantMotion();
+ scheduleAlarmLocked(DEFAULT_IDLE_AFTER_INACTIVE_TIMEOUT, false);
+ // Reset the upcoming idle delays.
+ mNextIdlePendingDelay = DEFAULT_IDLE_PENDING_TIMEOUT;
+ mNextIdleDelay = DEFAULT_IDLE_TIMEOUT;
+ mState = STATE_IDLE_PENDING;
+ EventLogTags.writeDeviceIdle(mState, "step");
+ break;
+ case STATE_IDLE_PENDING:
+ case STATE_IDLE_MAINTENANCE:
+ // We have been waiting to become idle, and now it is time! This is the
+ // only case where we want to use a wakeup alarm, because we do want to
+ // drag the device out of its sleep state in this case to do the next
+ // scheduled work.
+ scheduleAlarmLocked(mNextIdleDelay, true);
+ mNextIdleDelay = (long)(mNextIdleDelay*DEFAULT_IDLE_FACTOR);
+ if (mNextIdleDelay > DEFAULT_MAX_IDLE_TIMEOUT) {
+ mNextIdleDelay = DEFAULT_MAX_IDLE_TIMEOUT;
+ }
+ mState = STATE_IDLE;
+ EventLogTags.writeDeviceIdle(mState, "step");
+ mHandler.sendEmptyMessage(MSG_REPORT_IDLE_ON);
+ break;
+ case STATE_IDLE:
+ // We have been idling long enough, now it is time to do some work.
+ scheduleAlarmLocked(mNextIdlePendingDelay, false);
+ mNextIdlePendingDelay = (long)(mNextIdlePendingDelay*DEFAULT_IDLE_PENDING_FACTOR);
+ if (mNextIdlePendingDelay > DEFAULT_MAX_IDLE_PENDING_TIMEOUT) {
+ mNextIdlePendingDelay = DEFAULT_MAX_IDLE_PENDING_TIMEOUT;
+ }
+ mState = STATE_IDLE_MAINTENANCE;
+ EventLogTags.writeDeviceIdle(mState, "step");
+ mHandler.sendEmptyMessage(MSG_REPORT_IDLE_OFF);
+ break;
+ }
+ }
+
+ void significantMotionLocked() {
+ // When the sensor goes off, its trigger is automatically removed.
+ mSigMotionActive = false;
+ // The device is not yet active, so we want to go back to the pending idle
+ // state to wait again for no motion. Note that we only monitor for significant
+ // motion after moving out of the inactive state, so no need to worry about that.
+ if (mState != STATE_ACTIVE) {
+ scheduleReportActiveLocked(true);
+ mState = STATE_ACTIVE;
+ mInactiveTimeout = DEFAULT_MOTION_INACTIVE_TIMEOUT;
+ EventLogTags.writeDeviceIdle(mState, "motion");
+ becomeInactiveIfAppropriateLocked();
+ }
+ }
+
+ void startMonitoringSignificantMotion() {
+ if (mSigMotionSensor != null && !mSigMotionActive) {
+ mSensorManager.requestTriggerSensor(mSigMotionListener, mSigMotionSensor);
+ mSigMotionActive = true;
+ }
+ }
+
+ void stopMonitoringSignificantMotion() {
+ if (mSigMotionActive) {
+ mSensorManager.cancelTriggerSensor(mSigMotionListener, mSigMotionSensor);
+ mSigMotionActive = false;
+ }
+ }
+
+ void cancelAlarmLocked() {
+ if (mNextAlarmTime != 0) {
+ mNextAlarmTime = 0;
+ mAlarmManager.cancel(mAlarmIntent);
+ }
+ }
+
+ void scheduleAlarmLocked(long delay, boolean idleUntil) {
+ if (mSigMotionSensor == null) {
+ // If there is no significant motion sensor on this device, then we won't schedule
+ // alarms, because we can't determine if the device is not moving. This effectively
+ // turns off normal exeuction of device idling, although it is still possible to
+ // manually poke it by pretending like the alarm is going off.
+ return;
+ }
+ mNextAlarmTime = SystemClock.elapsedRealtime() + delay;
+ if (idleUntil) {
+ mAlarmManager.setIdleUntil(AlarmManager.ELAPSED_REALTIME_WAKEUP,
+ mNextAlarmTime, mAlarmIntent);
+ } else {
+ mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
+ mNextAlarmTime, mAlarmIntent);
+ }
+ }
+
+ private void updateWhitelistAppIdsLocked() {
+ mPowerSaveWhitelistAppIds.clear();
+ for (int i=0; i<mPowerSaveWhitelistApps.size(); i++) {
+ mPowerSaveWhitelistAppIds.put(mPowerSaveWhitelistApps.valueAt(i), true);
+ }
+ for (int i=0; i<mPowerSaveWhitelistUserApps.size(); i++) {
+ mPowerSaveWhitelistAppIds.put(mPowerSaveWhitelistUserApps.valueAt(i), true);
+ }
+ }
+
+ private void reportPowerSaveWhitelistChangedLocked() {
+ Intent intent = new Intent(PowerManager.ACTION_POWER_SAVE_WHITELIST_CHANGED);
+ intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
+ getContext().sendBroadcast(intent);
+ }
+
+ void readConfigFileLocked() {
+ Slog.d(TAG, "Reading config from " + mConfigFile.getBaseFile());
+ mPowerSaveWhitelistUserApps.clear();
+ FileInputStream stream;
+ try {
+ stream = mConfigFile.openRead();
+ } catch (FileNotFoundException e) {
+ return;
+ }
+ try {
+ XmlPullParser parser = Xml.newPullParser();
+ parser.setInput(stream, null);
+ readConfigFileLocked(parser);
+ } catch (XmlPullParserException e) {
+ } finally {
+ try {
+ stream.close();
+ } catch (IOException e) {
+ }
+ }
+
+ }
+
+ private void readConfigFileLocked(XmlPullParser parser) {
+ final PackageManager pm = getContext().getPackageManager();
+
+ try {
+ int type;
+ while ((type = parser.next()) != XmlPullParser.START_TAG
+ && type != XmlPullParser.END_DOCUMENT) {
+ ;
+ }
+
+ if (type != XmlPullParser.START_TAG) {
+ throw new IllegalStateException("no start tag found");
+ }
+
+ int outerDepth = parser.getDepth();
+ while ((type = parser.next()) != XmlPullParser.END_DOCUMENT
+ && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
+ if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
+ continue;
+ }
+
+ String tagName = parser.getName();
+ if (tagName.equals("wl")) {
+ String name = parser.getAttributeValue(null, "n");
+ if (name != null) {
+ try {
+ ApplicationInfo ai = pm.getApplicationInfo(name, 0);
+ mPowerSaveWhitelistUserApps.put(ai.packageName,
+ UserHandle.getAppId(ai.uid));
+ } catch (PackageManager.NameNotFoundException e) {
+ }
+ }
+ } else {
+ Slog.w(TAG, "Unknown element under <config>: "
+ + parser.getName());
+ XmlUtils.skipCurrentTag(parser);
+ }
+ }
+
+ } catch (IllegalStateException e) {
+ Slog.w(TAG, "Failed parsing config " + e);
+ } catch (NullPointerException e) {
+ Slog.w(TAG, "Failed parsing config " + e);
+ } catch (NumberFormatException e) {
+ Slog.w(TAG, "Failed parsing config " + e);
+ } catch (XmlPullParserException e) {
+ Slog.w(TAG, "Failed parsing config " + e);
+ } catch (IOException e) {
+ Slog.w(TAG, "Failed parsing config " + e);
+ } catch (IndexOutOfBoundsException e) {
+ Slog.w(TAG, "Failed parsing config " + e);
+ }
+ }
+
+ void writeConfigFileLocked() {
+ mHandler.removeMessages(MSG_WRITE_CONFIG);
+ mHandler.sendEmptyMessageDelayed(MSG_WRITE_CONFIG, 5000);
+ }
+
+ void handleWriteConfigFile() {
+ final ByteArrayOutputStream memStream = new ByteArrayOutputStream();
+
+ try {
+ synchronized (this) {
+ XmlSerializer out = new FastXmlSerializer();
+ out.setOutput(memStream, "utf-8");
+ writeConfigFileLocked(out);
+ }
+ } catch (IOException e) {
+ }
+
+ synchronized (mConfigFile) {
+ FileOutputStream stream = null;
+ try {
+ stream = mConfigFile.startWrite();
+ memStream.writeTo(stream);
+ stream.flush();
+ FileUtils.sync(stream);
+ stream.close();
+ mConfigFile.finishWrite(stream);
+ } catch (IOException e) {
+ Slog.w(TAG, "Error writing config file", e);
+ mConfigFile.failWrite(stream);
+ }
+ }
+ }
+
+ void writeConfigFileLocked(XmlSerializer out) throws IOException {
+ out.startDocument(null, true);
+ out.startTag(null, "config");
+ for (int i=0; i<mPowerSaveWhitelistUserApps.size(); i++) {
+ String name = mPowerSaveWhitelistUserApps.keyAt(i);
+ out.startTag(null, "wl");
+ out.attribute(null, "n", name);
+ out.endTag(null, "wl");
+ }
+ out.endTag(null, "config");
+ out.endDocument();
+ }
+
+ private void dumpHelp(PrintWriter pw) {
+ pw.println("Device idle controller (deviceidle) dump options:");
+ pw.println(" [-h] [CMD]");
+ pw.println(" -h: print this help text.");
+ pw.println("Commands:");
+ pw.println(" step");
+ pw.println(" Immediately step to next state, without waiting for alarm.");
+ pw.println(" whitelist");
+ pw.println(" Add (prefix with +) or remove (prefix with -) packages.");
+ }
+
+ 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 DeviceIdleController from from pid="
+ + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()
+ + " without permission " + android.Manifest.permission.DUMP);
+ return;
+ }
+
+ if (args != null) {
+ for (int i=0; i<args.length; i++) {
+ String arg = args[i];
+ if ("-h".equals(arg)) {
+ dumpHelp(pw);
+ return;
+ } else if ("step".equals(arg)) {
+ synchronized (this) {
+ stepIdleStateLocked();
+ pw.print("Stepped to: "); pw.println(stateToString(mState));
+ }
+ return;
+ } else if ("whitelist".equals(arg)) {
+ i++;
+ while (i < args.length) {
+ arg = args[i];
+ i++;
+ if (arg.length() < 1 || (arg.charAt(0) != '-'
+ && arg.charAt(0) != '+')) {
+ pw.println("Package must be prefixed with + or -: " + arg);
+ return;
+ }
+ char op = arg.charAt(0);
+ String pkg = arg.substring(1);
+ if (op == '+') {
+ if (addPowerSaveWhitelistAppInternal(pkg)) {
+ pw.println("Added: " + pkg);
+ } else {
+ pw.println("Unknown package: " + pkg);
+ }
+ } else {
+ if (removePowerSaveWhitelistAppInternal(pkg)) {
+ pw.println("Removed: " + pkg);
+ }
+ }
+ }
+ return;
+ } else if (arg.length() > 0 && arg.charAt(0) == '-'){
+ pw.println("Unknown option: " + arg);
+ return;
+ } else {
+ pw.println("Unknown command: " + arg);
+ return;
+ }
+ }
+ }
+
+ synchronized (this) {
+ int size = mPowerSaveWhitelistApps.size();
+ if (size > 0) {
+ pw.println(" Whitelist system apps:");
+ for (int i = 0; i < size; i++) {
+ pw.print(" ");
+ pw.println(mPowerSaveWhitelistApps.keyAt(i));
+ }
+ }
+ size = mPowerSaveWhitelistUserApps.size();
+ if (size > 0) {
+ pw.println(" Whitelist user apps:");
+ for (int i = 0; i < size; i++) {
+ pw.print(" ");
+ pw.println(mPowerSaveWhitelistUserApps.keyAt(i));
+ }
+ }
+ size = mPowerSaveWhitelistAppIds.size();
+ if (size > 0) {
+ pw.println(" Whitelist app uids:");
+ for (int i = 0; i < size; i++) {
+ pw.print(" UID=");
+ pw.print(mPowerSaveWhitelistAppIds.keyAt(i));
+ pw.print(": ");
+ pw.print(mPowerSaveWhitelistAppIds.valueAt(i));
+ pw.println();
+ }
+ }
+ pw.print(" mSigMotionSensor="); pw.println(mSigMotionSensor);
+ pw.print(" mCurDisplay="); pw.println(mCurDisplay);
+ pw.print(" mScreenOn="); pw.println(mScreenOn);
+ pw.print(" mCharging="); pw.println(mCharging);
+ pw.print(" mSigMotionActive="); pw.println(mSigMotionActive);
+ pw.print(" mState="); pw.println(stateToString(mState));
+ pw.print(" mInactiveTimeout="); TimeUtils.formatDuration(mInactiveTimeout, pw);
+ pw.println();
+ if (mNextAlarmTime != 0) {
+ pw.print(" mNextAlarmTime=");
+ TimeUtils.formatDuration(mNextAlarmTime, SystemClock.elapsedRealtime(), pw);
+ pw.println();
+ }
+ if (mNextIdlePendingDelay != 0) {
+ pw.print(" mNextIdlePendingDelay=");
+ TimeUtils.formatDuration(mNextIdlePendingDelay, pw);
+ pw.println();
+ }
+ if (mNextIdleDelay != 0) {
+ pw.print(" mNextIdleDelay=");
+ TimeUtils.formatDuration(mNextIdleDelay, pw);
+ pw.println();
+ }
+ }
+ }
+}
diff --git a/services/core/java/com/android/server/net/NetworkPolicyManagerService.java b/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
index 818f0aa..e45092c 100644
--- a/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
+++ b/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
@@ -110,13 +110,16 @@
import android.os.Environment;
import android.os.Handler;
import android.os.HandlerThread;
+import android.os.IDeviceIdleController;
import android.os.INetworkManagementService;
import android.os.IPowerManager;
import android.os.Message;
import android.os.MessageQueue.IdleHandler;
+import android.os.PowerManager;
import android.os.PowerManagerInternal;
import android.os.RemoteCallbackList;
import android.os.RemoteException;
+import android.os.ServiceManager;
import android.os.UserHandle;
import android.os.UserManager;
import android.provider.Settings;
@@ -138,6 +141,7 @@
import android.util.Xml;
import com.android.server.AppOpsService;
+import com.android.server.DeviceIdleController;
import libcore.io.IoUtils;
import com.android.internal.R;
@@ -245,6 +249,7 @@
private IConnectivityManager mConnManager;
private INotificationManager mNotifManager;
private PowerManagerInternal mPowerManagerInternal;
+ private IDeviceIdleController mDeviceIdleController;
final Object mRulesLock = new Object();
@@ -321,6 +326,8 @@
mPowerManager = checkNotNull(powerManager, "missing powerManager");
mNetworkStats = checkNotNull(networkStats, "missing networkStats");
mNetworkManager = checkNotNull(networkManagement, "missing networkManagement");
+ mDeviceIdleController = IDeviceIdleController.Stub.asInterface(ServiceManager.getService(
+ DeviceIdleController.SERVICE_NAME));
mTime = checkNotNull(time, "missing TrustedTime");
HandlerThread thread = new HandlerThread(TAG);
@@ -342,28 +349,27 @@
mNotifManager = checkNotNull(notifManager, "missing INotificationManager");
}
+ void updatePowerSaveWhitelistLocked() {
+ try {
+ final int[] whitelist = mDeviceIdleController.getAppIdWhitelist();
+ mPowerSaveWhitelistAppIds.clear();
+ if (whitelist != null) {
+ for (int uid : whitelist) {
+ mPowerSaveWhitelistAppIds.put(uid, true);
+ }
+ }
+ } catch (RemoteException e) {
+ }
+ }
+
public void systemReady() {
if (!isBandwidthControlEnabled()) {
Slog.w(TAG, "bandwidth controls disabled, unable to enforce policy");
return;
}
- final PackageManager pm = mContext.getPackageManager();
-
synchronized (mRulesLock) {
- SystemConfig sysConfig = SystemConfig.getInstance();
- ArraySet<String> allowPower = sysConfig.getAllowInPowerSave();
- for (int i=0; i<allowPower.size(); i++) {
- String pkg = allowPower.valueAt(i);
- try {
- ApplicationInfo ai = pm.getApplicationInfo(pkg, 0);
- if ((ai.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
- mPowerSaveWhitelistAppIds.put(UserHandle.getAppId(ai.uid), true);
- }
- } catch (PackageManager.NameNotFoundException e) {
- }
- }
-
+ updatePowerSaveWhitelistLocked();
mPowerManagerInternal = LocalServices.getService(PowerManagerInternal.class);
mPowerManagerInternal.registerLowPowerModeObserver(
new PowerManagerInternal.LowPowerModeListener() {
@@ -406,6 +412,11 @@
screenFilter.addAction(Intent.ACTION_SCREEN_OFF);
mContext.registerReceiver(mScreenReceiver, screenFilter);
+ // listen for changes to power save whitelist
+ final IntentFilter whitelistFilter = new IntentFilter(
+ PowerManager.ACTION_POWER_SAVE_WHITELIST_CHANGED);
+ mContext.registerReceiver(mPowerSaveWhitelistReceiver, whitelistFilter, null, mHandler);
+
// watch for network interfaces to be claimed
final IntentFilter connFilter = new IntentFilter(CONNECTIVITY_ACTION);
mContext.registerReceiver(mConnReceiver, connFilter, CONNECTIVITY_INTERNAL, mHandler);
@@ -489,6 +500,17 @@
}
};
+ private BroadcastReceiver mPowerSaveWhitelistReceiver = new BroadcastReceiver() {
+ @Override
+ public void onReceive(Context context, Intent intent) {
+ // on background handler thread, and POWER_SAVE_WHITELIST_CHANGED is protected
+ synchronized (mRulesLock) {
+ updatePowerSaveWhitelistLocked();
+ updateRulesForGlobalChangeLocked(false);
+ }
+ }
+ };
+
private BroadcastReceiver mScreenReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
@@ -1528,20 +1550,6 @@
return uids;
}
- @Override
- public int[] getPowerSaveAppIdWhitelist() {
- mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG);
-
- synchronized (mRulesLock) {
- int size = mPowerSaveWhitelistAppIds.size();
- int[] appids = new int[size];
- for (int i = 0; i < size; i++) {
- appids[i] = mPowerSaveWhitelistAppIds.keyAt(i);
- }
- return appids;
- }
- }
-
/**
* Remove any policies associated with given {@link UserHandle}, persisting
* if any changes are made.
diff --git a/services/core/java/com/android/server/power/DeviceIdleController.java b/services/core/java/com/android/server/power/DeviceIdleController.java
deleted file mode 100644
index 6b29b9a..0000000
--- a/services/core/java/com/android/server/power/DeviceIdleController.java
+++ /dev/null
@@ -1,489 +0,0 @@
-/*
- * Copyright (C) 2015 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.power;
-
-import android.app.AlarmManager;
-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.hardware.Sensor;
-import android.hardware.SensorManager;
-import android.hardware.TriggerEvent;
-import android.hardware.TriggerEventListener;
-import android.hardware.display.DisplayManager;
-import android.net.INetworkPolicyManager;
-import android.os.Binder;
-import android.os.PowerManager;
-import android.os.PowerManagerInternal;
-import android.os.RemoteException;
-import android.os.ServiceManager;
-import android.os.SystemClock;
-import android.os.UserHandle;
-import android.util.TimeUtils;
-import android.view.Display;
-import com.android.internal.app.IBatteryStats;
-import com.android.server.SystemService;
-import com.android.server.am.BatteryStatsService;
-import com.android.server.EventLogTags;
-
-import java.io.FileDescriptor;
-import java.io.PrintWriter;
-
-/**
- * Keeps track of device idleness and drives low power mode based on that.
- */
-public class DeviceIdleController extends SystemService {
- private static final String TAG = "DeviceIdleController";
-
- private static final String ACTION_STEP_IDLE_STATE =
- "com.android.server.device_idle.STEP_IDLE_STATE";
-
- // TODO: These need to be moved to system settings.
-
- /**
- * This is the time, after becoming inactive, at which we start looking at the
- * motion sensor to determine if the device is being left alone. We don't do this
- * immediately after going inactive just because we don't want to be continually running
- * the significant motion sensor whenever the screen is off.
- */
- private static final long DEFAULT_INACTIVE_TIMEOUT = 30*60*1000L;
- /**
- * This is the time, after seeing motion, that we wait after becoming inactive from
- * that until we start looking for motion again.
- */
- private static final long DEFAULT_MOTION_INACTIVE_TIMEOUT = 10*60*1000L;
- /**
- * This is the time, after the inactive timeout elapses, that we will wait looking
- * for significant motion until we truly consider the device to be idle.
- */
- private static final long DEFAULT_IDLE_AFTER_INACTIVE_TIMEOUT = 30*60*1000L;
- /**
- * This is the initial time, after being idle, that we will allow ourself to be back
- * in the IDLE_PENDING state allowing the system to run normally until we return to idle.
- */
- private static final long DEFAULT_IDLE_PENDING_TIMEOUT = 5*60*1000L;
- /**
- * Maximum pending idle timeout (time spent running) we will be allowed to use.
- */
- private static final long DEFAULT_MAX_IDLE_PENDING_TIMEOUT = 10*60*1000L;
- /**
- * Scaling factor to apply to current pending idle timeout each time we cycle through
- * that state.
- */
- private static final float DEFAULT_IDLE_PENDING_FACTOR = 2f;
- /**
- * This is the initial time that we want to sit in the idle state before waking up
- * again to return to pending idle and allowing normal work to run.
- */
- private static final long DEFAULT_IDLE_TIMEOUT = 60*60*1000L;
- /**
- * Maximum idle duration we will be allowed to use.
- */
- private static final long DEFAULT_MAX_IDLE_TIMEOUT = 6*60*60*1000L;
- /**
- * Scaling factor to apply to current idle timeout each time we cycle through that state.
- */
- private static final float DEFAULT_IDLE_FACTOR = 2f;
- /**
- * This is the minimum time we will allow until the next upcoming alarm for us to
- * actually go in to idle mode.
- */
- private static final long DEFAULT_MIN_TIME_TO_ALARM = 60*60*1000L;
-
- private AlarmManager mAlarmManager;
- private IBatteryStats mBatteryStats;
- private PowerManagerInternal mLocalPowerManager;
- private INetworkPolicyManager mNetworkPolicyManager;
- private DisplayManager mDisplayManager;
- private SensorManager mSensorManager;
- private Sensor mSigMotionSensor;
- private PendingIntent mAlarmIntent;
- private Intent mIdleIntent;
- private Display mCurDisplay;
- private boolean mScreenOn;
- private boolean mCharging;
- private boolean mSigMotionActive;
-
- /** Device is currently active. */
- private static final int STATE_ACTIVE = 0;
- /** Device is inactve (screen off, no motion) and we are waiting to for idle. */
- private static final int STATE_INACTIVE = 1;
- /** Device is past the initial inactive period, and waiting for the next idle period. */
- private static final int STATE_IDLE_PENDING = 2;
- /** Device is in the idle state, trying to stay asleep as much as possible. */
- private static final int STATE_IDLE = 3;
- private static String stateToString(int state) {
- switch (state) {
- case STATE_ACTIVE: return "ACTIVE";
- case STATE_INACTIVE: return "INACTIVE";
- case STATE_IDLE_PENDING: return "IDLE_PENDING";
- case STATE_IDLE: return "IDLE";
- default: return Integer.toString(state);
- }
- }
-
- private int mState;
-
- private long mInactiveTimeout;
- private long mNextAlarmTime;
- private long mNextIdlePendingDelay;
- private long mNextIdleDelay;
-
- private final Binder mBinder = new Binder() {
- @Override protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
- DeviceIdleController.this.dump(fd, pw, args);
- }
- };
-
- private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
- @Override public void onReceive(Context context, Intent intent) {
- if (Intent.ACTION_BATTERY_CHANGED.equals(intent.getAction())) {
- int plugged = intent.getIntExtra("plugged", 0);
- updateChargingLocked(plugged != 0);
- } else if (ACTION_STEP_IDLE_STATE.equals(intent.getAction())) {
- synchronized (DeviceIdleController.this) {
- stepIdleStateLocked();
- }
- }
- }
- };
-
- private final DisplayManager.DisplayListener mDisplayListener
- = new DisplayManager.DisplayListener() {
- @Override public void onDisplayAdded(int displayId) {
- }
-
- @Override public void onDisplayRemoved(int displayId) {
- }
-
- @Override public void onDisplayChanged(int displayId) {
- if (displayId == Display.DEFAULT_DISPLAY) {
- synchronized (DeviceIdleController.this) {
- updateDisplayLocked();
- }
- }
- }
- };
-
- private final TriggerEventListener mSigMotionListener = new TriggerEventListener() {
- @Override public void onTrigger(TriggerEvent event) {
- synchronized (DeviceIdleController.this) {
- significantMotionLocked();
- }
- }
- };
-
- public DeviceIdleController(Context context) {
- super(context);
- }
-
- @Override
- public void onStart() {
- synchronized (this) {
- mAlarmManager = (AlarmManager) getContext().getSystemService(Context.ALARM_SERVICE);
- mBatteryStats = BatteryStatsService.getService();
- mLocalPowerManager = getLocalService(PowerManagerInternal.class);
- mNetworkPolicyManager = INetworkPolicyManager.Stub.asInterface(
- ServiceManager.getService(Context.NETWORK_POLICY_SERVICE));
- mDisplayManager = (DisplayManager) getContext().getSystemService(
- Context.DISPLAY_SERVICE);
- mSensorManager = (SensorManager) getContext().getSystemService(Context.SENSOR_SERVICE);
- mSigMotionSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_SIGNIFICANT_MOTION);
-
- Intent intent = new Intent(ACTION_STEP_IDLE_STATE)
- .setPackage("android")
- .setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
- mAlarmIntent = PendingIntent.getBroadcast(getContext(), 0, intent, 0);
-
- mIdleIntent = new Intent(PowerManager.ACTION_DEVICE_IDLE_MODE_CHANGED);
- mIdleIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
-
- IntentFilter filter = new IntentFilter();
- filter.addAction(Intent.ACTION_BATTERY_CHANGED);
- filter.addAction(ACTION_STEP_IDLE_STATE);
- getContext().registerReceiver(mReceiver, filter);
-
- mDisplayManager.registerDisplayListener(mDisplayListener, null);
-
- mScreenOn = true;
- // Start out assuming we are charging. If we aren't, we will at least get
- // a battery update the next time the level drops.
- mCharging = true;
- mState = STATE_ACTIVE;
- mInactiveTimeout = DEFAULT_INACTIVE_TIMEOUT;
- updateDisplayLocked();
- }
-
- publishBinderService("deviceidle", mBinder);
- }
-
- void updateDisplayLocked() {
- mCurDisplay = mDisplayManager.getDisplay(Display.DEFAULT_DISPLAY);
- // We consider any situation where the display is showing something to be it on,
- // because if there is anything shown we are going to be updating it at some
- // frequency so can't be allowed to go into deep sleeps.
- boolean screenOn = mCurDisplay.getState() != Display.STATE_OFF;;
- if (!screenOn && mScreenOn) {
- mScreenOn = false;
- becomeInactiveIfAppropriateLocked();
- } else if (screenOn) {
- mScreenOn = true;
- becomeActiveLocked("screen");
- }
- }
-
- void updateChargingLocked(boolean charging) {
- if (!charging && mCharging) {
- mCharging = false;
- becomeInactiveIfAppropriateLocked();
- } else if (charging) {
- mCharging = charging;
- becomeActiveLocked("charging");
- }
- }
-
- void becomeActiveLocked(String reason) {
- if (mState != STATE_ACTIVE) {
- EventLogTags.writeDeviceIdle(STATE_ACTIVE, reason);
- mLocalPowerManager.setDeviceIdleMode(false);
- try {
- mNetworkPolicyManager.setDeviceIdleMode(false);
- mBatteryStats.noteDeviceIdleMode(false, true, false);
- } catch (RemoteException e) {
- }
- if (mState == STATE_IDLE) {
- getContext().sendBroadcastAsUser(mIdleIntent, UserHandle.ALL);
- }
- mState = STATE_ACTIVE;
- mInactiveTimeout = DEFAULT_INACTIVE_TIMEOUT;
- mNextIdlePendingDelay = 0;
- mNextIdleDelay = 0;
- cancelAlarmLocked();
- stopMonitoringSignificantMotion();
- }
- }
-
- void becomeInactiveIfAppropriateLocked() {
- if (!mScreenOn && !mCharging && mState == STATE_ACTIVE) {
- // Screen has turned off; we are now going to become inactive and start
- // waiting to see if we will ultimately go idle.
- mState = STATE_INACTIVE;
- mNextIdlePendingDelay = 0;
- mNextIdleDelay = 0;
- scheduleAlarmLocked(mInactiveTimeout, false);
- EventLogTags.writeDeviceIdle(mState, "no activity");
- }
- }
-
- void stepIdleStateLocked() {
- EventLogTags.writeDeviceIdleStep();
-
- final long now = SystemClock.elapsedRealtime();
- if ((now+DEFAULT_MIN_TIME_TO_ALARM) > mAlarmManager.getNextWakeFromIdleTime()) {
- // Whoops, there is an upcoming alarm. We don't actually want to go idle.
- if (mState != STATE_ACTIVE) {
- becomeActiveLocked("alarm");
- }
- return;
- }
-
- switch (mState) {
- case STATE_INACTIVE:
- // We have now been inactive long enough, it is time to start looking
- // for significant motion and sleep some more while doing so.
- startMonitoringSignificantMotion();
- scheduleAlarmLocked(DEFAULT_IDLE_AFTER_INACTIVE_TIMEOUT, false);
- // Reset the upcoming idle delays.
- mNextIdlePendingDelay = DEFAULT_IDLE_PENDING_TIMEOUT;
- mNextIdleDelay = DEFAULT_IDLE_TIMEOUT;
- mState = STATE_IDLE_PENDING;
- EventLogTags.writeDeviceIdle(mState, "step");
- break;
- case STATE_IDLE_PENDING:
- // We have been waiting to become idle, and now it is time! This is the
- // only case where we want to use a wakeup alarm, because we do want to
- // drag the device out of its sleep state in this case to do the next
- // scheduled work.
- scheduleAlarmLocked(mNextIdleDelay, true);
- mNextIdleDelay = (long)(mNextIdleDelay*DEFAULT_IDLE_FACTOR);
- if (mNextIdleDelay > DEFAULT_MAX_IDLE_TIMEOUT) {
- mNextIdleDelay = DEFAULT_MAX_IDLE_TIMEOUT;
- }
- mState = STATE_IDLE;
- EventLogTags.writeDeviceIdle(mState, "step");
- mLocalPowerManager.setDeviceIdleMode(true);
- try {
- mNetworkPolicyManager.setDeviceIdleMode(true);
- mBatteryStats.noteDeviceIdleMode(true, false, false);
- } catch (RemoteException e) {
- }
- getContext().sendBroadcastAsUser(mIdleIntent, UserHandle.ALL);
- break;
- case STATE_IDLE:
- // We have been idling long enough, now it is time to do some work.
- scheduleAlarmLocked(mNextIdlePendingDelay, false);
- mNextIdlePendingDelay = (long)(mNextIdlePendingDelay*DEFAULT_IDLE_PENDING_FACTOR);
- if (mNextIdlePendingDelay > DEFAULT_MAX_IDLE_PENDING_TIMEOUT) {
- mNextIdlePendingDelay = DEFAULT_MAX_IDLE_PENDING_TIMEOUT;
- }
- mState = STATE_IDLE_PENDING;
- EventLogTags.writeDeviceIdle(mState, "step");
- mLocalPowerManager.setDeviceIdleMode(false);
- try {
- mNetworkPolicyManager.setDeviceIdleMode(false);
- mBatteryStats.noteDeviceIdleMode(false, false, false);
- } catch (RemoteException e) {
- }
- getContext().sendBroadcastAsUser(mIdleIntent, UserHandle.ALL);
- break;
- }
- }
-
- void significantMotionLocked() {
- // When the sensor goes off, its trigger is automatically removed.
- mSigMotionActive = false;
- // The device is not yet active, so we want to go back to the pending idle
- // state to wait again for no motion. Note that we only monitor for significant
- // motion after moving out of the inactive state, so no need to worry about that.
- if (mState != STATE_ACTIVE) {
- mLocalPowerManager.setDeviceIdleMode(false);
- try {
- mNetworkPolicyManager.setDeviceIdleMode(false);
- mBatteryStats.noteDeviceIdleMode(false, false, true);
- } catch (RemoteException e) {
- }
- if (mState == STATE_IDLE) {
- getContext().sendBroadcastAsUser(mIdleIntent, UserHandle.ALL);
- }
- mState = STATE_ACTIVE;
- mInactiveTimeout = DEFAULT_MOTION_INACTIVE_TIMEOUT;
- EventLogTags.writeDeviceIdle(mState, "motion");
- becomeInactiveIfAppropriateLocked();
- }
- }
-
- void startMonitoringSignificantMotion() {
- if (mSigMotionSensor != null && !mSigMotionActive) {
- mSensorManager.requestTriggerSensor(mSigMotionListener, mSigMotionSensor);
- mSigMotionActive = true;
- }
- }
-
- void stopMonitoringSignificantMotion() {
- if (mSigMotionActive) {
- mSensorManager.cancelTriggerSensor(mSigMotionListener, mSigMotionSensor);
- mSigMotionActive = false;
- }
- }
-
- void cancelAlarmLocked() {
- if (mNextAlarmTime != 0) {
- mNextAlarmTime = 0;
- mAlarmManager.cancel(mAlarmIntent);
- }
- }
-
- void scheduleAlarmLocked(long delay, boolean idleUntil) {
- if (mSigMotionSensor == null) {
- // If there is no significant motion sensor on this device, then we won't schedule
- // alarms, because we can't determine if the device is not moving. This effectively
- // turns off normal exeuction of device idling, although it is still possible to
- // manually poke it by pretending like the alarm is going off.
- return;
- }
- mNextAlarmTime = SystemClock.elapsedRealtime() + delay;
- if (idleUntil) {
- mAlarmManager.setIdleUntil(AlarmManager.ELAPSED_REALTIME_WAKEUP,
- mNextAlarmTime, mAlarmIntent);
- } else {
- mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
- mNextAlarmTime, mAlarmIntent);
- }
- }
-
- private void dumpHelp(PrintWriter pw) {
- pw.println("Device idle controller (deviceidle) dump options:");
- pw.println(" [-h] [CMD]");
- pw.println(" -h: print this help text.");
- pw.println("Commands:");
- pw.println(" step");
- pw.println(" Immediately step to next state, without waiting for alarm.");
- }
-
- 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 DeviceIdleController from from pid="
- + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()
- + " without permission " + android.Manifest.permission.DUMP);
- return;
- }
-
- if (args != null) {
- for (int i=0; i<args.length; i++) {
- String arg = args[i];
- if ("-h".equals(arg)) {
- dumpHelp(pw);
- return;
- } else if ("step".equals(arg)) {
- synchronized (this) {
- stepIdleStateLocked();
- pw.print("Stepped to: "); pw.println(stateToString(mState));
- }
- return;
- } else if (arg.length() > 0 && arg.charAt(0) == '-'){
- pw.println("Unknown option: " + arg);
- dumpHelp(pw);
- return;
- } else {
- pw.println("Unknown command: " + arg);
- dumpHelp(pw);
- return;
- }
- }
- }
-
- synchronized (this) {
- pw.print(" mSigMotionSensor="); pw.println(mSigMotionSensor);
- pw.print(" mCurDisplay="); pw.println(mCurDisplay);
- pw.print(" mScreenOn="); pw.println(mScreenOn);
- pw.print(" mCharging="); pw.println(mCharging);
- pw.print(" mSigMotionActive="); pw.println(mSigMotionActive);
- pw.print(" mState="); pw.println(stateToString(mState));
- pw.print(" mInactiveTimeout="); TimeUtils.formatDuration(mInactiveTimeout, pw);
- pw.println();
- if (mNextAlarmTime != 0) {
- pw.print(" mNextAlarmTime=");
- TimeUtils.formatDuration(mNextAlarmTime, SystemClock.elapsedRealtime(), pw);
- pw.println();
- }
- if (mNextIdlePendingDelay != 0) {
- pw.print(" mNextIdlePendingDelay=");
- TimeUtils.formatDuration(mNextIdlePendingDelay, pw);
- pw.println();
- }
- if (mNextIdleDelay != 0) {
- pw.print(" mNextIdleDelay=");
- TimeUtils.formatDuration(mNextIdleDelay, pw);
- pw.println();
- }
- }
- }
-}