Move power manager to a new package.
Change-Id: I5f5a6435e64354b7d6535e8e9a63934ba7a3f448
diff --git a/services/java/com/android/server/power/ShutdownThread.java b/services/java/com/android/server/power/ShutdownThread.java
new file mode 100644
index 0000000..5f2f428
--- /dev/null
+++ b/services/java/com/android/server/power/ShutdownThread.java
@@ -0,0 +1,520 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+package com.android.server.power;
+
+import android.app.ActivityManagerNative;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.app.IActivityManager;
+import android.app.ProgressDialog;
+import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.IBluetooth;
+import android.nfc.NfcAdapter;
+import android.nfc.INfcAdapter;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.os.Handler;
+import android.os.PowerManager;
+import android.os.RemoteException;
+import android.os.ServiceManager;
+import android.os.SystemClock;
+import android.os.SystemProperties;
+import android.os.Vibrator;
+import android.os.SystemVibrator;
+import android.os.storage.IMountService;
+import android.os.storage.IMountShutdownObserver;
+
+import com.android.internal.telephony.ITelephony;
+
+import android.util.Log;
+import android.view.WindowManager;
+
+public final class ShutdownThread extends Thread {
+ // constants
+ private static final String TAG = "ShutdownThread";
+ private static final int PHONE_STATE_POLL_SLEEP_MSEC = 500;
+ // maximum time we wait for the shutdown broadcast before going on.
+ private static final int MAX_BROADCAST_TIME = 10*1000;
+ private static final int MAX_SHUTDOWN_WAIT_TIME = 20*1000;
+ private static final int MAX_RADIO_WAIT_TIME = 12*1000;
+
+ // length of vibration before shutting down
+ private static final int SHUTDOWN_VIBRATE_MS = 500;
+
+ // state tracking
+ private static Object sIsStartedGuard = new Object();
+ private static boolean sIsStarted = false;
+
+ private static boolean mReboot;
+ private static boolean mRebootSafeMode;
+ private static String mRebootReason;
+
+ // Provides shutdown assurance in case the system_server is killed
+ public static final String SHUTDOWN_ACTION_PROPERTY = "sys.shutdown.requested";
+
+ // Indicates whether we are rebooting into safe mode
+ public static final String REBOOT_SAFEMODE_PROPERTY = "persist.sys.safemode";
+
+ // static instance of this thread
+ private static final ShutdownThread sInstance = new ShutdownThread();
+
+ private final Object mActionDoneSync = new Object();
+ private boolean mActionDone;
+ private Context mContext;
+ private PowerManager mPowerManager;
+ private PowerManager.WakeLock mCpuWakeLock;
+ private PowerManager.WakeLock mScreenWakeLock;
+ private Handler mHandler;
+
+ private static AlertDialog sConfirmDialog;
+
+ private ShutdownThread() {
+ }
+
+ /**
+ * Request a clean shutdown, waiting for subsystems to clean up their
+ * state etc. Must be called from a Looper thread in which its UI
+ * is shown.
+ *
+ * @param context Context used to display the shutdown progress dialog.
+ * @param confirm true if user confirmation is needed before shutting down.
+ */
+ public static void shutdown(final Context context, boolean confirm) {
+ mReboot = false;
+ mRebootSafeMode = false;
+ shutdownInner(context, confirm);
+ }
+
+ static void shutdownInner(final Context context, boolean confirm) {
+ // ensure that only one thread is trying to power down.
+ // any additional calls are just returned
+ synchronized (sIsStartedGuard) {
+ if (sIsStarted) {
+ Log.d(TAG, "Request to shutdown already running, returning.");
+ return;
+ }
+ }
+
+ final int longPressBehavior = context.getResources().getInteger(
+ com.android.internal.R.integer.config_longPressOnPowerBehavior);
+ final int resourceId = mRebootSafeMode
+ ? com.android.internal.R.string.reboot_safemode_confirm
+ : (longPressBehavior == 2
+ ? com.android.internal.R.string.shutdown_confirm_question
+ : com.android.internal.R.string.shutdown_confirm);
+
+ Log.d(TAG, "Notifying thread to start shutdown longPressBehavior=" + longPressBehavior);
+
+ if (confirm) {
+ final CloseDialogReceiver closer = new CloseDialogReceiver(context);
+ if (sConfirmDialog != null) {
+ sConfirmDialog.dismiss();
+ }
+ sConfirmDialog = new AlertDialog.Builder(context)
+ .setTitle(mRebootSafeMode
+ ? com.android.internal.R.string.reboot_safemode_title
+ : com.android.internal.R.string.power_off)
+ .setMessage(resourceId)
+ .setPositiveButton(com.android.internal.R.string.yes, new DialogInterface.OnClickListener() {
+ public void onClick(DialogInterface dialog, int which) {
+ beginShutdownSequence(context);
+ }
+ })
+ .setNegativeButton(com.android.internal.R.string.no, null)
+ .create();
+ closer.dialog = sConfirmDialog;
+ sConfirmDialog.setOnDismissListener(closer);
+ sConfirmDialog.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);
+ sConfirmDialog.show();
+ } else {
+ beginShutdownSequence(context);
+ }
+ }
+
+ private static class CloseDialogReceiver extends BroadcastReceiver
+ implements DialogInterface.OnDismissListener {
+ private Context mContext;
+ public Dialog dialog;
+
+ CloseDialogReceiver(Context context) {
+ mContext = context;
+ IntentFilter filter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
+ context.registerReceiver(this, filter);
+ }
+
+ @Override
+ public void onReceive(Context context, Intent intent) {
+ dialog.cancel();
+ }
+
+ public void onDismiss(DialogInterface unused) {
+ mContext.unregisterReceiver(this);
+ }
+ }
+
+ /**
+ * Request a clean shutdown, waiting for subsystems to clean up their
+ * state etc. Must be called from a Looper thread in which its UI
+ * is shown.
+ *
+ * @param context Context used to display the shutdown progress dialog.
+ * @param reason code to pass to the kernel (e.g. "recovery"), or null.
+ * @param confirm true if user confirmation is needed before shutting down.
+ */
+ public static void reboot(final Context context, String reason, boolean confirm) {
+ mReboot = true;
+ mRebootSafeMode = false;
+ mRebootReason = reason;
+ shutdownInner(context, confirm);
+ }
+
+ /**
+ * Request a reboot into safe mode. Must be called from a Looper thread in which its UI
+ * is shown.
+ *
+ * @param context Context used to display the shutdown progress dialog.
+ * @param confirm true if user confirmation is needed before shutting down.
+ */
+ public static void rebootSafeMode(final Context context, boolean confirm) {
+ mReboot = true;
+ mRebootSafeMode = true;
+ mRebootReason = null;
+ shutdownInner(context, confirm);
+ }
+
+ private static void beginShutdownSequence(Context context) {
+ synchronized (sIsStartedGuard) {
+ if (sIsStarted) {
+ Log.d(TAG, "Shutdown sequence already running, returning.");
+ return;
+ }
+ sIsStarted = true;
+ }
+
+ // throw up an indeterminate system dialog to indicate radio is
+ // shutting down.
+ ProgressDialog pd = new ProgressDialog(context);
+ pd.setTitle(context.getText(com.android.internal.R.string.power_off));
+ pd.setMessage(context.getText(com.android.internal.R.string.shutdown_progress));
+ pd.setIndeterminate(true);
+ pd.setCancelable(false);
+ pd.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);
+
+ pd.show();
+
+ sInstance.mContext = context;
+ sInstance.mPowerManager = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
+
+ // make sure we never fall asleep again
+ sInstance.mCpuWakeLock = null;
+ try {
+ sInstance.mCpuWakeLock = sInstance.mPowerManager.newWakeLock(
+ PowerManager.PARTIAL_WAKE_LOCK, TAG + "-cpu");
+ sInstance.mCpuWakeLock.setReferenceCounted(false);
+ sInstance.mCpuWakeLock.acquire();
+ } catch (SecurityException e) {
+ Log.w(TAG, "No permission to acquire wake lock", e);
+ sInstance.mCpuWakeLock = null;
+ }
+
+ // also make sure the screen stays on for better user experience
+ sInstance.mScreenWakeLock = null;
+ if (sInstance.mPowerManager.isScreenOn()) {
+ try {
+ sInstance.mScreenWakeLock = sInstance.mPowerManager.newWakeLock(
+ PowerManager.FULL_WAKE_LOCK, TAG + "-screen");
+ sInstance.mScreenWakeLock.setReferenceCounted(false);
+ sInstance.mScreenWakeLock.acquire();
+ } catch (SecurityException e) {
+ Log.w(TAG, "No permission to acquire wake lock", e);
+ sInstance.mScreenWakeLock = null;
+ }
+ }
+
+ // start the thread that initiates shutdown
+ sInstance.mHandler = new Handler() {
+ };
+ sInstance.start();
+ }
+
+ void actionDone() {
+ synchronized (mActionDoneSync) {
+ mActionDone = true;
+ mActionDoneSync.notifyAll();
+ }
+ }
+
+ /**
+ * Makes sure we handle the shutdown gracefully.
+ * Shuts off power regardless of radio and bluetooth state if the alloted time has passed.
+ */
+ public void run() {
+ BroadcastReceiver br = new BroadcastReceiver() {
+ @Override public void onReceive(Context context, Intent intent) {
+ // We don't allow apps to cancel this, so ignore the result.
+ actionDone();
+ }
+ };
+
+ /*
+ * Write a system property in case the system_server reboots before we
+ * get to the actual hardware restart. If that happens, we'll retry at
+ * the beginning of the SystemServer startup.
+ */
+ {
+ String reason = (mReboot ? "1" : "0") + (mRebootReason != null ? mRebootReason : "");
+ SystemProperties.set(SHUTDOWN_ACTION_PROPERTY, reason);
+ }
+
+ /*
+ * If we are rebooting into safe mode, write a system property
+ * indicating so.
+ */
+ if (mRebootSafeMode) {
+ SystemProperties.set(REBOOT_SAFEMODE_PROPERTY, "1");
+ }
+
+ Log.i(TAG, "Sending shutdown broadcast...");
+
+ // First send the high-level shut down broadcast.
+ mActionDone = false;
+ mContext.sendOrderedBroadcast(new Intent(Intent.ACTION_SHUTDOWN), null,
+ br, mHandler, 0, null, null);
+
+ final long endTime = SystemClock.elapsedRealtime() + MAX_BROADCAST_TIME;
+ synchronized (mActionDoneSync) {
+ while (!mActionDone) {
+ long delay = endTime - SystemClock.elapsedRealtime();
+ if (delay <= 0) {
+ Log.w(TAG, "Shutdown broadcast timed out");
+ break;
+ }
+ try {
+ mActionDoneSync.wait(delay);
+ } catch (InterruptedException e) {
+ }
+ }
+ }
+
+ Log.i(TAG, "Shutting down activity manager...");
+
+ final IActivityManager am =
+ ActivityManagerNative.asInterface(ServiceManager.checkService("activity"));
+ if (am != null) {
+ try {
+ am.shutdown(MAX_BROADCAST_TIME);
+ } catch (RemoteException e) {
+ }
+ }
+
+ // Shutdown radios.
+ shutdownRadios(MAX_RADIO_WAIT_TIME);
+
+ // Shutdown MountService to ensure media is in a safe state
+ IMountShutdownObserver observer = new IMountShutdownObserver.Stub() {
+ public void onShutDownComplete(int statusCode) throws RemoteException {
+ Log.w(TAG, "Result code " + statusCode + " from MountService.shutdown");
+ actionDone();
+ }
+ };
+
+ Log.i(TAG, "Shutting down MountService");
+
+ // Set initial variables and time out time.
+ mActionDone = false;
+ final long endShutTime = SystemClock.elapsedRealtime() + MAX_SHUTDOWN_WAIT_TIME;
+ synchronized (mActionDoneSync) {
+ try {
+ final IMountService mount = IMountService.Stub.asInterface(
+ ServiceManager.checkService("mount"));
+ if (mount != null) {
+ mount.shutdown(observer);
+ } else {
+ Log.w(TAG, "MountService unavailable for shutdown");
+ }
+ } catch (Exception e) {
+ Log.e(TAG, "Exception during MountService shutdown", e);
+ }
+ while (!mActionDone) {
+ long delay = endShutTime - SystemClock.elapsedRealtime();
+ if (delay <= 0) {
+ Log.w(TAG, "Shutdown wait timed out");
+ break;
+ }
+ try {
+ mActionDoneSync.wait(delay);
+ } catch (InterruptedException e) {
+ }
+ }
+ }
+
+ rebootOrShutdown(mReboot, mRebootReason);
+ }
+
+ private void shutdownRadios(int timeout) {
+ // If a radio is wedged, disabling it may hang so we do this work in another thread,
+ // just in case.
+ final long endTime = SystemClock.elapsedRealtime() + timeout;
+ final boolean[] done = new boolean[1];
+ Thread t = new Thread() {
+ public void run() {
+ boolean nfcOff;
+ boolean bluetoothOff;
+ boolean radioOff;
+
+ final INfcAdapter nfc =
+ INfcAdapter.Stub.asInterface(ServiceManager.checkService("nfc"));
+ final ITelephony phone =
+ ITelephony.Stub.asInterface(ServiceManager.checkService("phone"));
+ final IBluetooth bluetooth =
+ IBluetooth.Stub.asInterface(ServiceManager.checkService(
+ BluetoothAdapter.BLUETOOTH_SERVICE));
+
+ try {
+ nfcOff = nfc == null ||
+ nfc.getState() == NfcAdapter.STATE_OFF;
+ if (!nfcOff) {
+ Log.w(TAG, "Turning off NFC...");
+ nfc.disable(false); // Don't persist new state
+ }
+ } catch (RemoteException ex) {
+ Log.e(TAG, "RemoteException during NFC shutdown", ex);
+ nfcOff = true;
+ }
+
+ try {
+ bluetoothOff = bluetooth == null ||
+ bluetooth.getBluetoothState() == BluetoothAdapter.STATE_OFF;
+ if (!bluetoothOff) {
+ Log.w(TAG, "Disabling Bluetooth...");
+ bluetooth.disable(false); // disable but don't persist new state
+ }
+ } catch (RemoteException ex) {
+ Log.e(TAG, "RemoteException during bluetooth shutdown", ex);
+ bluetoothOff = true;
+ }
+
+ try {
+ radioOff = phone == null || !phone.isRadioOn();
+ if (!radioOff) {
+ Log.w(TAG, "Turning off radio...");
+ phone.setRadio(false);
+ }
+ } catch (RemoteException ex) {
+ Log.e(TAG, "RemoteException during radio shutdown", ex);
+ radioOff = true;
+ }
+
+ Log.i(TAG, "Waiting for NFC, Bluetooth and Radio...");
+
+ while (SystemClock.elapsedRealtime() < endTime) {
+ if (!bluetoothOff) {
+ try {
+ bluetoothOff =
+ bluetooth.getBluetoothState() == BluetoothAdapter.STATE_OFF;
+ } catch (RemoteException ex) {
+ Log.e(TAG, "RemoteException during bluetooth shutdown", ex);
+ bluetoothOff = true;
+ }
+ if (bluetoothOff) {
+ Log.i(TAG, "Bluetooth turned off.");
+ }
+ }
+ if (!radioOff) {
+ try {
+ radioOff = !phone.isRadioOn();
+ } catch (RemoteException ex) {
+ Log.e(TAG, "RemoteException during radio shutdown", ex);
+ radioOff = true;
+ }
+ if (radioOff) {
+ Log.i(TAG, "Radio turned off.");
+ }
+ }
+ if (!nfcOff) {
+ try {
+ nfcOff = nfc.getState() == NfcAdapter.STATE_OFF;
+ } catch (RemoteException ex) {
+ Log.e(TAG, "RemoteException during NFC shutdown", ex);
+ nfcOff = true;
+ }
+ if (radioOff) {
+ Log.i(TAG, "NFC turned off.");
+ }
+ }
+
+ if (radioOff && bluetoothOff && nfcOff) {
+ Log.i(TAG, "NFC, Radio and Bluetooth shutdown complete.");
+ done[0] = true;
+ break;
+ }
+ SystemClock.sleep(PHONE_STATE_POLL_SLEEP_MSEC);
+ }
+ }
+ };
+
+ t.start();
+ try {
+ t.join(timeout);
+ } catch (InterruptedException ex) {
+ }
+ if (!done[0]) {
+ Log.w(TAG, "Timed out waiting for NFC, Radio and Bluetooth shutdown.");
+ }
+ }
+
+ /**
+ * Do not call this directly. Use {@link #reboot(Context, String, boolean)}
+ * or {@link #shutdown(Context, boolean)} instead.
+ *
+ * @param reboot true to reboot or false to shutdown
+ * @param reason reason for reboot
+ */
+ public static void rebootOrShutdown(boolean reboot, String reason) {
+ if (reboot) {
+ Log.i(TAG, "Rebooting, reason: " + reason);
+ try {
+ PowerManagerService.lowLevelReboot(reason);
+ } catch (Exception e) {
+ Log.e(TAG, "Reboot failed, will attempt shutdown instead", e);
+ }
+ } else if (SHUTDOWN_VIBRATE_MS > 0) {
+ // vibrate before shutting down
+ Vibrator vibrator = new SystemVibrator();
+ try {
+ vibrator.vibrate(SHUTDOWN_VIBRATE_MS);
+ } catch (Exception e) {
+ // Failure to vibrate shouldn't interrupt shutdown. Just log it.
+ Log.w(TAG, "Failed to vibrate during shutdown.", e);
+ }
+
+ // vibrator is asynchronous so we need to wait to avoid shutting down too soon.
+ try {
+ Thread.sleep(SHUTDOWN_VIBRATE_MS);
+ } catch (InterruptedException unused) {
+ }
+ }
+
+ // Shutdown power
+ Log.i(TAG, "Performing low-level shutdown...");
+ PowerManagerService.lowLevelShutdown();
+ }
+}