/*
* 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.AlertDialog;
import android.app.Dialog;
import android.app.IActivityManager;
import android.app.ProgressDialog;
import android.app.admin.SecurityLog;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.media.AudioAttributes;
import android.os.FileUtils;
import android.os.Handler;
import android.os.PowerManager;
import android.os.RecoverySystem;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.SystemClock;
import android.os.SystemProperties;
import android.os.SystemVibrator;
import android.os.Trace;
import android.os.UserHandle;
import android.os.UserManager;
import android.os.Vibrator;
import android.util.ArrayMap;
import android.util.Log;
import android.util.TimingsTraceLog;
import android.view.WindowManager;
import com.android.internal.telephony.ITelephony;
import com.android.server.RescueParty;
import com.android.server.LocalServices;
import com.android.server.pm.PackageManagerService;
import com.android.server.statusbar.StatusBarManagerInternal;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
public final class ShutdownThread extends Thread {
// constants
private static final String TAG = "ShutdownThread";
private static final int ACTION_DONE_POLL_WAIT_MS = 500;
private static final int RADIOS_STATE_POLL_SLEEP_MS = 100;
// 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;
private static final int MAX_UNCRYPT_WAIT_TIME = 15*60*1000;
// constants for progress bar. the values are roughly estimated based on timeout.
private static final int BROADCAST_STOP_PERCENT = 2;
private static final int ACTIVITY_MANAGER_STOP_PERCENT = 4;
private static final int PACKAGE_MANAGER_STOP_PERCENT = 6;
private static final int RADIO_STOP_PERCENT = 18;
private static final int MOUNT_SERVICE_STOP_PERCENT = 20;
// length of vibration before shutting down
private static final int SHUTDOWN_VIBRATE_MS = 500;
// state tracking
private static final Object sIsStartedGuard = new Object();
private static boolean sIsStarted = false;
private static boolean mReboot;
private static boolean mRebootSafeMode;
private static boolean mRebootHasProgressBar;
private static String mReason;
// 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";
public static final String RO_SAFEMODE_PROPERTY = "ro.sys.safemode";
// static instance of this thread
private static final ShutdownThread sInstance = new ShutdownThread();
private static final AudioAttributes VIBRATION_ATTRIBUTES = new AudioAttributes.Builder()
.setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
.setUsage(AudioAttributes.USAGE_ASSISTANCE_SONIFICATION)
.build();
// Metrics that will be reported to tron after reboot
private static final ArrayMap<String, Long> TRON_METRICS = new ArrayMap<>();
// File to use for save metrics
private static final String METRICS_FILE_BASENAME = "/data/system/shutdown-metrics";
// Metrics names to be persisted in shutdown-metrics file
private static String METRIC_SYSTEM_SERVER = "shutdown_system_server";
private static String METRIC_SEND_BROADCAST = "shutdown_send_shutdown_broadcast";
private static String METRIC_AM = "shutdown_activity_manager";
private static String METRIC_PM = "shutdown_package_manager";
private static String METRIC_RADIOS = "shutdown_radios";
private static String METRIC_RADIO = "shutdown_radio";
private static String METRIC_SHUTDOWN_TIME_START = "begin_shutdown";
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 ProgressDialog mProgressDialog;
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. This must be a context
* suitable for displaying UI (aka Themable).
* @param reason code to pass to android_reboot() (e.g. "userrequested"), or null.
* @param confirm true if user confirmation is needed before shutting down.
*/
public static void shutdown(final Context context, String reason, boolean confirm) {
mReboot = false;
mRebootSafeMode = false;
mReason = reason;
shutdownInner(context, confirm);
}
private static void shutdownInner(final Context context, boolean confirm) {
// ShutdownThread is called from many places, so best to verify here that the context passed
// in is themed.
context.assertRuntimeOverlayThemable();
// 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. This must be a context
* suitable for displaying UI (aka Themable).
* @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;
mRebootHasProgressBar = false;
mReason = 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. This must be a context
* suitable for displaying UI (aka Themable).
* @param confirm true if user confirmation is needed before shutting down.
*/
public static void rebootSafeMode(final Context context, boolean confirm) {
UserManager um = (UserManager) context.getSystemService(Context.USER_SERVICE);
if (um.hasUserRestriction(UserManager.DISALLOW_SAFE_BOOT)) {
return;
}
mReboot = true;
mRebootSafeMode = true;
mRebootHasProgressBar = false;
mReason = null;
shutdownInner(context, confirm);
}
private static ProgressDialog showShutdownDialog(Context context) {
// Throw up a system dialog to indicate the device is rebooting / shutting down.
ProgressDialog pd = new ProgressDialog(context);
// Path 1: Reboot to recovery for update
// Condition: mReason startswith REBOOT_RECOVERY_UPDATE
//
// Path 1a: uncrypt needed
// Condition: if /cache/recovery/uncrypt_file exists but
// /cache/recovery/block.map doesn't.
// UI: determinate progress bar (mRebootHasProgressBar == True)
//
// * Path 1a is expected to be removed once the GmsCore shipped on
// device always calls uncrypt prior to reboot.
//
// Path 1b: uncrypt already done
// UI: spinning circle only (no progress bar)
//
// Path 2: Reboot to recovery for factory reset
// Condition: mReason == REBOOT_RECOVERY
// UI: spinning circle only (no progress bar)
//
// Path 3: Regular reboot / shutdown
// Condition: Otherwise
// UI: spinning circle only (no progress bar)
// mReason could be "recovery-update" or "recovery-update,quiescent".
if (mReason != null && mReason.startsWith(PowerManager.REBOOT_RECOVERY_UPDATE)) {
// We need the progress bar if uncrypt will be invoked during the
// reboot, which might be time-consuming.
mRebootHasProgressBar = RecoverySystem.UNCRYPT_PACKAGE_FILE.exists()
&& !(RecoverySystem.BLOCK_MAP_FILE.exists());
pd.setTitle(context.getText(com.android.internal.R.string.reboot_to_update_title));
if (mRebootHasProgressBar) {
pd.setMax(100);
pd.setProgress(0);
pd.setIndeterminate(false);
pd.setProgressNumberFormat(null);
pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
pd.setMessage(context.getText(
com.android.internal.R.string.reboot_to_update_prepare));
} else {
if (showSysuiReboot()) {
return null;
}
pd.setIndeterminate(true);
pd.setMessage(context.getText(
com.android.internal.R.string.reboot_to_update_reboot));
}
} else if (mReason != null && mReason.equals(PowerManager.REBOOT_RECOVERY)) {
if (RescueParty.isAttemptingFactoryReset()) {
// We're not actually doing a factory reset yet; we're rebooting
// to ask the user if they'd like to reset, so give them a less
// scary dialog message.
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);
} else {
// Factory reset path. Set the dialog message accordingly.
pd.setTitle(context.getText(com.android.internal.R.string.reboot_to_reset_title));
pd.setMessage(context.getText(
com.android.internal.R.string.reboot_to_reset_message));
pd.setIndeterminate(true);
}
} else {
if (showSysuiReboot()) {
return null;
}
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();
return pd;
}
private static boolean showSysuiReboot() {
Log.d(TAG, "Attempting to use SysUI shutdown UI");
try {
StatusBarManagerInternal service = LocalServices.getService(
StatusBarManagerInternal.class);
if (service.showShutdownUi(mReboot, mReason)) {
// Sysui will handle shutdown UI.
Log.d(TAG, "SysUI handling shutdown UI");
return true;
}
} catch (Exception e) {
// If anything went wrong, ignore it and use fallback ui
}
Log.d(TAG, "SysUI is unavailable");
return false;
}
private static void beginShutdownSequence(Context context) {
synchronized (sIsStartedGuard) {
if (sIsStarted) {
Log.d(TAG, "Shutdown sequence already running, returning.");
return;
}
sIsStarted = true;
}
sInstance.mProgressDialog = showShutdownDialog(context);
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;
}
}
if (SecurityLog.isLoggingEnabled()) {
SecurityLog.writeEvent(SecurityLog.TAG_OS_SHUTDOWN);
}
// 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 state if the allotted time has passed.
*/
public void run() {
TimingsTraceLog shutdownTimingLog = newTimingsLog();
shutdownTimingLog.traceBegin("SystemServerShutdown");
metricShutdownStart();
metricStarted(METRIC_SYSTEM_SERVER);
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") + (mReason != null ? mReason : "");
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");
}
metricStarted(METRIC_SEND_BROADCAST);
shutdownTimingLog.traceBegin("SendShutdownBroadcast");
Log.i(TAG, "Sending shutdown broadcast...");
// First send the high-level shut down broadcast.
mActionDone = false;
Intent intent = new Intent(Intent.ACTION_SHUTDOWN);
intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND | Intent.FLAG_RECEIVER_REGISTERED_ONLY);
mContext.sendOrderedBroadcastAsUser(intent,
UserHandle.ALL, 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;
} else if (mRebootHasProgressBar) {
int status = (int)((MAX_BROADCAST_TIME - delay) * 1.0 *
BROADCAST_STOP_PERCENT / MAX_BROADCAST_TIME);
sInstance.setRebootProgress(status, null);
}
try {
mActionDoneSync.wait(Math.min(delay, ACTION_DONE_POLL_WAIT_MS));
} catch (InterruptedException e) {
}
}
}
if (mRebootHasProgressBar) {
sInstance.setRebootProgress(BROADCAST_STOP_PERCENT, null);
}
shutdownTimingLog.traceEnd(); // SendShutdownBroadcast
metricEnded(METRIC_SEND_BROADCAST);
Log.i(TAG, "Shutting down activity manager...");
shutdownTimingLog.traceBegin("ShutdownActivityManager");
metricStarted(METRIC_AM);
final IActivityManager am =
IActivityManager.Stub.asInterface(ServiceManager.checkService("activity"));
if (am != null) {
try {
am.shutdown(MAX_BROADCAST_TIME);
} catch (RemoteException e) {
}
}
if (mRebootHasProgressBar) {
sInstance.setRebootProgress(ACTIVITY_MANAGER_STOP_PERCENT, null);
}
shutdownTimingLog.traceEnd();// ShutdownActivityManager
metricEnded(METRIC_AM);
Log.i(TAG, "Shutting down package manager...");
shutdownTimingLog.traceBegin("ShutdownPackageManager");
metricStarted(METRIC_PM);
final PackageManagerService pm = (PackageManagerService)
ServiceManager.getService("package");
if (pm != null) {
pm.shutdown();
}
if (mRebootHasProgressBar) {
sInstance.setRebootProgress(PACKAGE_MANAGER_STOP_PERCENT, null);
}
shutdownTimingLog.traceEnd(); // ShutdownPackageManager
metricEnded(METRIC_PM);
// Shutdown radios.
shutdownTimingLog.traceBegin("ShutdownRadios");
metricStarted(METRIC_RADIOS);
shutdownRadios(MAX_RADIO_WAIT_TIME);
if (mRebootHasProgressBar) {
sInstance.setRebootProgress(RADIO_STOP_PERCENT, null);
}
shutdownTimingLog.traceEnd(); // ShutdownRadios
metricEnded(METRIC_RADIOS);
if (mRebootHasProgressBar) {
sInstance.setRebootProgress(MOUNT_SERVICE_STOP_PERCENT, null);
// If it's to reboot to install an update and uncrypt hasn't been
// done yet, trigger it now.
uncrypt();
}
shutdownTimingLog.traceEnd(); // SystemServerShutdown
metricEnded(METRIC_SYSTEM_SERVER);
saveMetrics(mReboot, mReason);
// Remaining work will be done by init, including vold shutdown
rebootOrShutdown(mContext, mReboot, mReason);
}
private static TimingsTraceLog newTimingsLog() {
return new TimingsTraceLog("ShutdownTiming", Trace.TRACE_TAG_SYSTEM_SERVER);
}
private static void metricStarted(String metricKey) {
synchronized (TRON_METRICS) {
TRON_METRICS.put(metricKey, -1 * SystemClock.elapsedRealtime());
}
}
private static void metricEnded(String metricKey) {
synchronized (TRON_METRICS) {
TRON_METRICS
.put(metricKey, SystemClock.elapsedRealtime() + TRON_METRICS.get(metricKey));
}
}
private static void metricShutdownStart() {
synchronized (TRON_METRICS) {
TRON_METRICS.put(METRIC_SHUTDOWN_TIME_START, System.currentTimeMillis());
}
}
private void setRebootProgress(final int progress, final CharSequence message) {
mHandler.post(new Runnable() {
@Override
public void run() {
if (mProgressDialog != null) {
mProgressDialog.setProgress(progress);
if (message != null) {
mProgressDialog.setMessage(message);
}
}
}
});
}
private void shutdownRadios(final 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() {
TimingsTraceLog shutdownTimingsTraceLog = newTimingsLog();
boolean radioOff;
final ITelephony phone =
ITelephony.Stub.asInterface(ServiceManager.checkService("phone"));
try {
radioOff = phone == null || !phone.needMobileRadioShutdown();
if (!radioOff) {
Log.w(TAG, "Turning off cellular radios...");
metricStarted(METRIC_RADIO);
phone.shutdownMobileRadios();
}
} catch (RemoteException ex) {
Log.e(TAG, "RemoteException during radio shutdown", ex);
radioOff = true;
}
Log.i(TAG, "Waiting for Radio...");
long delay = endTime - SystemClock.elapsedRealtime();
while (delay > 0) {
if (mRebootHasProgressBar) {
int status = (int)((timeout - delay) * 1.0 *
(RADIO_STOP_PERCENT - PACKAGE_MANAGER_STOP_PERCENT) / timeout);
status += PACKAGE_MANAGER_STOP_PERCENT;
sInstance.setRebootProgress(status, null);
}
if (!radioOff) {
try {
radioOff = !phone.needMobileRadioShutdown();
} catch (RemoteException ex) {
Log.e(TAG, "RemoteException during radio shutdown", ex);
radioOff = true;
}
if (radioOff) {
Log.i(TAG, "Radio turned off.");
metricEnded(METRIC_RADIO);
shutdownTimingsTraceLog
.logDuration("ShutdownRadio", TRON_METRICS.get(METRIC_RADIO));
}
}
if (radioOff) {
Log.i(TAG, "Radio shutdown complete.");
done[0] = true;
break;
}
SystemClock.sleep(RADIOS_STATE_POLL_SLEEP_MS);
delay = endTime - SystemClock.elapsedRealtime();
}
}
};
t.start();
try {
t.join(timeout);
} catch (InterruptedException ex) {
}
if (!done[0]) {
Log.w(TAG, "Timed out waiting for Radio shutdown.");
}
}
/**
* Do not call this directly. Use {@link #reboot(Context, String, boolean)}
* or {@link #shutdown(Context, String, boolean)} instead.
*
* @param context Context used to vibrate or null without vibration
* @param reboot true to reboot or false to shutdown
* @param reason reason for reboot/shutdown
*/
public static void rebootOrShutdown(final Context context, boolean reboot, String reason) {
if (reboot) {
Log.i(TAG, "Rebooting, reason: " + reason);
PowerManagerService.lowLevelReboot(reason);
Log.e(TAG, "Reboot failed, will attempt shutdown instead");
reason = null;
} else if (SHUTDOWN_VIBRATE_MS > 0 && context != null) {
// vibrate before shutting down
Vibrator vibrator = new SystemVibrator(context);
try {
vibrator.vibrate(SHUTDOWN_VIBRATE_MS, VIBRATION_ATTRIBUTES);
} 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(reason);
}
private static void saveMetrics(boolean reboot, String reason) {
StringBuilder metricValue = new StringBuilder();
metricValue.append("reboot:");
metricValue.append(reboot ? "y" : "n");
metricValue.append(",").append("reason:").append(reason);
final int metricsSize = TRON_METRICS.size();
for (int i = 0; i < metricsSize; i++) {
final String name = TRON_METRICS.keyAt(i);
final long value = TRON_METRICS.valueAt(i);
if (value < 0) {
Log.e(TAG, "metricEnded wasn't called for " + name);
continue;
}
metricValue.append(',').append(name).append(':').append(value);
}
File tmp = new File(METRICS_FILE_BASENAME + ".tmp");
boolean saved = false;
try (FileOutputStream fos = new FileOutputStream(tmp)) {
fos.write(metricValue.toString().getBytes(StandardCharsets.UTF_8));
saved = true;
} catch (IOException e) {
Log.e(TAG,"Cannot save shutdown metrics", e);
}
if (saved) {
tmp.renameTo(new File(METRICS_FILE_BASENAME + ".txt"));
}
}
private void uncrypt() {
Log.i(TAG, "Calling uncrypt and monitoring the progress...");
final RecoverySystem.ProgressListener progressListener =
new RecoverySystem.ProgressListener() {
@Override
public void onProgress(int status) {
if (status >= 0 && status < 100) {
// Scale down to [MOUNT_SERVICE_STOP_PERCENT, 100).
status = (int)(status * (100.0 - MOUNT_SERVICE_STOP_PERCENT) / 100);
status += MOUNT_SERVICE_STOP_PERCENT;
CharSequence msg = mContext.getText(
com.android.internal.R.string.reboot_to_update_package);
sInstance.setRebootProgress(status, msg);
} else if (status == 100) {
CharSequence msg = mContext.getText(
com.android.internal.R.string.reboot_to_update_reboot);
sInstance.setRebootProgress(status, msg);
} else {
// Ignored
}
}
};
final boolean[] done = new boolean[1];
done[0] = false;
Thread t = new Thread() {
@Override
public void run() {
RecoverySystem rs = (RecoverySystem) mContext.getSystemService(
Context.RECOVERY_SERVICE);
String filename = null;
try {
filename = FileUtils.readTextFile(RecoverySystem.UNCRYPT_PACKAGE_FILE, 0, null);
rs.processPackage(mContext, new File(filename), progressListener);
} catch (IOException e) {
Log.e(TAG, "Error uncrypting file", e);
}
done[0] = true;
}
};
t.start();
try {
t.join(MAX_UNCRYPT_WAIT_TIME);
} catch (InterruptedException unused) {
}
if (!done[0]) {
Log.w(TAG, "Timed out waiting for uncrypt.");
final int uncryptTimeoutError = 100;
String timeoutMessage = String.format("uncrypt_time: %d\n" + "uncrypt_error: %d\n",
MAX_UNCRYPT_WAIT_TIME / 1000, uncryptTimeoutError);
try {
FileUtils.stringToFile(RecoverySystem.UNCRYPT_STATUS_FILE, timeoutMessage);
} catch (IOException e) {
Log.e(TAG, "Failed to write timeout message to uncrypt status", e);
}
}
}
}