| /* |
| * Copyright (C) 2006-2007 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.am; |
| |
| import android.app.AppGlobals; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.pm.IPackageManager; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageManager; |
| import android.os.Binder; |
| import android.os.IBinder; |
| import android.os.FileUtils; |
| import android.os.Parcel; |
| import android.os.Process; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.os.SystemClock; |
| import android.util.ArrayMap; |
| import android.util.AtomicFile; |
| import android.util.Slog; |
| import android.util.Xml; |
| |
| import com.android.internal.app.IUsageStats; |
| import com.android.internal.content.PackageMonitor; |
| import com.android.internal.os.PkgUsageStats; |
| import com.android.internal.util.FastXmlSerializer; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| import org.xmlpull.v1.XmlSerializer; |
| |
| 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; |
| import java.util.ArrayList; |
| import java.util.Calendar; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.TimeZone; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import java.util.concurrent.atomic.AtomicInteger; |
| import java.util.concurrent.atomic.AtomicLong; |
| |
| /** |
| * This service collects the statistics associated with usage |
| * of various components, like when a particular package is launched or |
| * paused and aggregates events like number of time a component is launched |
| * total duration of a component launch. |
| */ |
| public final class UsageStatsService extends IUsageStats.Stub { |
| public static final String SERVICE_NAME = "usagestats"; |
| private static final boolean localLOGV = false; |
| private static final boolean REPORT_UNEXPECTED = false; |
| private static final String TAG = "UsageStats"; |
| |
| // Current on-disk Parcel version |
| private static final int VERSION = 1008; |
| |
| private static final int CHECKIN_VERSION = 4; |
| |
| private static final String FILE_PREFIX = "usage-"; |
| |
| private static final String FILE_HISTORY = FILE_PREFIX + "history.xml"; |
| |
| private static final int FILE_WRITE_INTERVAL = 30*60*1000; //ms |
| |
| private static final int MAX_NUM_FILES = 5; |
| |
| private static final int NUM_LAUNCH_TIME_BINS = 10; |
| private static final int[] LAUNCH_TIME_BINS = { |
| 250, 500, 750, 1000, 1500, 2000, 3000, 4000, 5000 |
| }; |
| |
| static IUsageStats sService; |
| private Context mContext; |
| // structure used to maintain statistics since the last checkin. |
| final private ArrayMap<String, PkgUsageStatsExtended> mStats; |
| |
| // Maintains the last time any component was resumed, for all time. |
| final private ArrayMap<String, ArrayMap<String, Long>> mLastResumeTimes; |
| |
| // To remove last-resume time stats when a pacakge is removed. |
| private PackageMonitor mPackageMonitor; |
| |
| // Lock to update package stats. Methods suffixed by SLOCK should invoked with |
| // this lock held |
| final Object mStatsLock; |
| // Lock to write to file. Methods suffixed by FLOCK should invoked with |
| // this lock held. |
| final Object mFileLock; |
| // Order of locks is mFileLock followed by mStatsLock to avoid deadlocks |
| private String mLastResumedPkg; |
| private String mLastResumedComp; |
| private boolean mIsResumed; |
| private File mFile; |
| private AtomicFile mHistoryFile; |
| private String mFileLeaf; |
| private File mDir; |
| |
| private Calendar mCal; // guarded by itself |
| |
| private final AtomicInteger mLastWriteDay = new AtomicInteger(-1); |
| private final AtomicLong mLastWriteElapsedTime = new AtomicLong(0); |
| private final AtomicBoolean mUnforcedDiskWriteRunning = new AtomicBoolean(false); |
| |
| static class TimeStats { |
| int count; |
| int[] times = new int[NUM_LAUNCH_TIME_BINS]; |
| |
| TimeStats() { |
| } |
| |
| void incCount() { |
| count++; |
| } |
| |
| void add(int val) { |
| final int[] bins = LAUNCH_TIME_BINS; |
| for (int i=0; i<NUM_LAUNCH_TIME_BINS-1; i++) { |
| if (val < bins[i]) { |
| times[i]++; |
| return; |
| } |
| } |
| times[NUM_LAUNCH_TIME_BINS-1]++; |
| } |
| |
| TimeStats(Parcel in) { |
| count = in.readInt(); |
| final int[] localTimes = times; |
| for (int i=0; i<NUM_LAUNCH_TIME_BINS; i++) { |
| localTimes[i] = in.readInt(); |
| } |
| } |
| |
| void writeToParcel(Parcel out) { |
| out.writeInt(count); |
| final int[] localTimes = times; |
| for (int i=0; i<NUM_LAUNCH_TIME_BINS; i++) { |
| out.writeInt(localTimes[i]); |
| } |
| } |
| } |
| |
| private class PkgUsageStatsExtended { |
| final ArrayMap<String, TimeStats> mLaunchTimes |
| = new ArrayMap<String, TimeStats>(); |
| final ArrayMap<String, TimeStats> mFullyDrawnTimes |
| = new ArrayMap<String, TimeStats>(); |
| int mLaunchCount; |
| long mUsageTime; |
| long mPausedTime; |
| long mResumedTime; |
| |
| PkgUsageStatsExtended() { |
| mLaunchCount = 0; |
| mUsageTime = 0; |
| } |
| |
| PkgUsageStatsExtended(Parcel in) { |
| mLaunchCount = in.readInt(); |
| mUsageTime = in.readLong(); |
| if (localLOGV) Slog.v(TAG, "Launch count: " + mLaunchCount |
| + ", Usage time:" + mUsageTime); |
| |
| final int numLaunchTimeStats = in.readInt(); |
| if (localLOGV) Slog.v(TAG, "Reading launch times: " + numLaunchTimeStats); |
| mLaunchTimes.ensureCapacity(numLaunchTimeStats); |
| for (int i=0; i<numLaunchTimeStats; i++) { |
| String comp = in.readString(); |
| if (localLOGV) Slog.v(TAG, "Component: " + comp); |
| TimeStats times = new TimeStats(in); |
| mLaunchTimes.put(comp, times); |
| } |
| |
| final int numFullyDrawnTimeStats = in.readInt(); |
| if (localLOGV) Slog.v(TAG, "Reading fully drawn times: " + numFullyDrawnTimeStats); |
| mFullyDrawnTimes.ensureCapacity(numFullyDrawnTimeStats); |
| for (int i=0; i<numFullyDrawnTimeStats; i++) { |
| String comp = in.readString(); |
| if (localLOGV) Slog.v(TAG, "Component: " + comp); |
| TimeStats times = new TimeStats(in); |
| mFullyDrawnTimes.put(comp, times); |
| } |
| } |
| |
| void updateResume(String comp, boolean launched) { |
| if (launched) { |
| mLaunchCount ++; |
| } |
| mResumedTime = SystemClock.elapsedRealtime(); |
| } |
| |
| void updatePause() { |
| mPausedTime = SystemClock.elapsedRealtime(); |
| mUsageTime += (mPausedTime - mResumedTime); |
| } |
| |
| void addLaunchCount(String comp) { |
| TimeStats times = mLaunchTimes.get(comp); |
| if (times == null) { |
| times = new TimeStats(); |
| mLaunchTimes.put(comp, times); |
| } |
| times.incCount(); |
| } |
| |
| void addLaunchTime(String comp, int millis) { |
| TimeStats times = mLaunchTimes.get(comp); |
| if (times == null) { |
| times = new TimeStats(); |
| mLaunchTimes.put(comp, times); |
| } |
| times.add(millis); |
| } |
| |
| void addFullyDrawnTime(String comp, int millis) { |
| TimeStats times = mFullyDrawnTimes.get(comp); |
| if (times == null) { |
| times = new TimeStats(); |
| mFullyDrawnTimes.put(comp, times); |
| } |
| times.add(millis); |
| } |
| |
| void writeToParcel(Parcel out) { |
| out.writeInt(mLaunchCount); |
| out.writeLong(mUsageTime); |
| final int numLaunchTimeStats = mLaunchTimes.size(); |
| out.writeInt(numLaunchTimeStats); |
| for (int i=0; i<numLaunchTimeStats; i++) { |
| out.writeString(mLaunchTimes.keyAt(i)); |
| mLaunchTimes.valueAt(i).writeToParcel(out); |
| } |
| final int numFullyDrawnTimeStats = mFullyDrawnTimes.size(); |
| out.writeInt(numFullyDrawnTimeStats); |
| for (int i=0; i<numFullyDrawnTimeStats; i++) { |
| out.writeString(mFullyDrawnTimes.keyAt(i)); |
| mFullyDrawnTimes.valueAt(i).writeToParcel(out); |
| } |
| } |
| |
| void clear() { |
| mLaunchTimes.clear(); |
| mFullyDrawnTimes.clear(); |
| mLaunchCount = 0; |
| mUsageTime = 0; |
| } |
| } |
| |
| UsageStatsService(String dir) { |
| mStats = new ArrayMap<String, PkgUsageStatsExtended>(); |
| mLastResumeTimes = new ArrayMap<String, ArrayMap<String, Long>>(); |
| mStatsLock = new Object(); |
| mFileLock = new Object(); |
| mDir = new File(dir); |
| mCal = Calendar.getInstance(TimeZone.getTimeZone("GMT+0")); |
| |
| mDir.mkdir(); |
| |
| // Remove any old usage files from previous versions. |
| File parentDir = mDir.getParentFile(); |
| String fList[] = parentDir.list(); |
| if (fList != null) { |
| String prefix = mDir.getName() + "."; |
| int i = fList.length; |
| while (i > 0) { |
| i--; |
| if (fList[i].startsWith(prefix)) { |
| Slog.i(TAG, "Deleting old usage file: " + fList[i]); |
| (new File(parentDir, fList[i])).delete(); |
| } |
| } |
| } |
| |
| // Update current stats which are binned by date |
| mFileLeaf = getCurrentDateStr(FILE_PREFIX); |
| mFile = new File(mDir, mFileLeaf); |
| mHistoryFile = new AtomicFile(new File(mDir, FILE_HISTORY)); |
| readStatsFromFile(); |
| readHistoryStatsFromFile(); |
| mLastWriteElapsedTime.set(SystemClock.elapsedRealtime()); |
| // mCal was set by getCurrentDateStr(), want to use that same time. |
| mLastWriteDay.set(mCal.get(Calendar.DAY_OF_YEAR)); |
| } |
| |
| /* |
| * Utility method to convert date into string. |
| */ |
| private String getCurrentDateStr(String prefix) { |
| StringBuilder sb = new StringBuilder(); |
| synchronized (mCal) { |
| mCal.setTimeInMillis(System.currentTimeMillis()); |
| if (prefix != null) { |
| sb.append(prefix); |
| } |
| sb.append(mCal.get(Calendar.YEAR)); |
| int mm = mCal.get(Calendar.MONTH) - Calendar.JANUARY +1; |
| if (mm < 10) { |
| sb.append("0"); |
| } |
| sb.append(mm); |
| int dd = mCal.get(Calendar.DAY_OF_MONTH); |
| if (dd < 10) { |
| sb.append("0"); |
| } |
| sb.append(dd); |
| } |
| return sb.toString(); |
| } |
| |
| private Parcel getParcelForFile(File file) throws IOException { |
| FileInputStream stream = new FileInputStream(file); |
| byte[] raw = readFully(stream); |
| Parcel in = Parcel.obtain(); |
| in.unmarshall(raw, 0, raw.length); |
| in.setDataPosition(0); |
| stream.close(); |
| return in; |
| } |
| |
| private void readStatsFromFile() { |
| File newFile = mFile; |
| synchronized (mFileLock) { |
| try { |
| if (newFile.exists()) { |
| readStatsFLOCK(newFile); |
| } else { |
| // Check for file limit before creating a new file |
| checkFileLimitFLOCK(); |
| newFile.createNewFile(); |
| } |
| } catch (IOException e) { |
| Slog.w(TAG,"Error : " + e + " reading data from file:" + newFile); |
| } |
| } |
| } |
| |
| private void readStatsFLOCK(File file) throws IOException { |
| Parcel in = getParcelForFile(file); |
| int vers = in.readInt(); |
| if (vers != VERSION) { |
| Slog.w(TAG, "Usage stats version changed; dropping"); |
| return; |
| } |
| int N = in.readInt(); |
| while (N > 0) { |
| N--; |
| String pkgName = in.readString(); |
| if (pkgName == null) { |
| break; |
| } |
| if (localLOGV) Slog.v(TAG, "Reading package #" + N + ": " + pkgName); |
| PkgUsageStatsExtended pus = new PkgUsageStatsExtended(in); |
| synchronized (mStatsLock) { |
| mStats.put(pkgName, pus); |
| } |
| } |
| } |
| |
| private void readHistoryStatsFromFile() { |
| synchronized (mFileLock) { |
| if (mHistoryFile.getBaseFile().exists()) { |
| readHistoryStatsFLOCK(mHistoryFile); |
| } |
| } |
| } |
| |
| private void readHistoryStatsFLOCK(AtomicFile file) { |
| FileInputStream fis = null; |
| try { |
| fis = mHistoryFile.openRead(); |
| XmlPullParser parser = Xml.newPullParser(); |
| parser.setInput(fis, null); |
| int eventType = parser.getEventType(); |
| while (eventType != XmlPullParser.START_TAG) { |
| eventType = parser.next(); |
| } |
| String tagName = parser.getName(); |
| if ("usage-history".equals(tagName)) { |
| String pkg = null; |
| do { |
| eventType = parser.next(); |
| if (eventType == XmlPullParser.START_TAG) { |
| tagName = parser.getName(); |
| int depth = parser.getDepth(); |
| if ("pkg".equals(tagName) && depth == 2) { |
| pkg = parser.getAttributeValue(null, "name"); |
| } else if ("comp".equals(tagName) && depth == 3 && pkg != null) { |
| String comp = parser.getAttributeValue(null, "name"); |
| String lastResumeTimeStr = parser.getAttributeValue(null, "lrt"); |
| if (comp != null && lastResumeTimeStr != null) { |
| try { |
| long lastResumeTime = Long.parseLong(lastResumeTimeStr); |
| synchronized (mStatsLock) { |
| ArrayMap<String, Long> lrt = mLastResumeTimes.get(pkg); |
| if (lrt == null) { |
| lrt = new ArrayMap<String, Long>(); |
| mLastResumeTimes.put(pkg, lrt); |
| } |
| lrt.put(comp, lastResumeTime); |
| } |
| } catch (NumberFormatException e) { |
| } |
| } |
| } |
| } else if (eventType == XmlPullParser.END_TAG) { |
| if ("pkg".equals(parser.getName())) { |
| pkg = null; |
| } |
| } |
| } while (eventType != XmlPullParser.END_DOCUMENT); |
| } |
| } catch (XmlPullParserException e) { |
| Slog.w(TAG,"Error reading history stats: " + e); |
| } catch (IOException e) { |
| Slog.w(TAG,"Error reading history stats: " + e); |
| } finally { |
| if (fis != null) { |
| try { |
| fis.close(); |
| } catch (IOException e) { |
| } |
| } |
| } |
| } |
| |
| private ArrayList<String> getUsageStatsFileListFLOCK() { |
| // Check if there are too many files in the system and delete older files |
| String fList[] = mDir.list(); |
| if (fList == null) { |
| return null; |
| } |
| ArrayList<String> fileList = new ArrayList<String>(); |
| for (String file : fList) { |
| if (!file.startsWith(FILE_PREFIX)) { |
| continue; |
| } |
| if (file.endsWith(".bak")) { |
| (new File(mDir, file)).delete(); |
| continue; |
| } |
| fileList.add(file); |
| } |
| return fileList; |
| } |
| |
| private void checkFileLimitFLOCK() { |
| // Get all usage stats output files |
| ArrayList<String> fileList = getUsageStatsFileListFLOCK(); |
| if (fileList == null) { |
| // Strange but we dont have to delete any thing |
| return; |
| } |
| int count = fileList.size(); |
| if (count <= MAX_NUM_FILES) { |
| return; |
| } |
| // Sort files |
| Collections.sort(fileList); |
| count -= MAX_NUM_FILES; |
| // Delete older files |
| for (int i = 0; i < count; i++) { |
| String fileName = fileList.get(i); |
| File file = new File(mDir, fileName); |
| Slog.i(TAG, "Deleting usage file : " + fileName); |
| file.delete(); |
| } |
| } |
| |
| /** |
| * Conditionally start up a disk write if it's been awhile, or the |
| * day has rolled over. |
| * |
| * This is called indirectly from user-facing actions (when |
| * 'force' is false) so it tries to be quick, without writing to |
| * disk directly or acquiring heavy locks. |
| * |
| * @params force do an unconditional, synchronous stats flush |
| * to disk on the current thread. |
| * @params forceWriteHistoryStats Force writing of historical stats. |
| */ |
| private void writeStatsToFile(final boolean force, final boolean forceWriteHistoryStats) { |
| int curDay; |
| synchronized (mCal) { |
| mCal.setTimeInMillis(System.currentTimeMillis()); |
| curDay = mCal.get(Calendar.DAY_OF_YEAR); |
| } |
| final boolean dayChanged = curDay != mLastWriteDay.get(); |
| |
| // Determine if the day changed... note that this will be wrong |
| // if the year has changed but we are in the same day of year... |
| // we can probably live with this. |
| final long currElapsedTime = SystemClock.elapsedRealtime(); |
| |
| // Fast common path, without taking the often-contentious |
| // mFileLock. |
| if (!force) { |
| if (!dayChanged && |
| (currElapsedTime - mLastWriteElapsedTime.get()) < FILE_WRITE_INTERVAL) { |
| // wait till the next update |
| return; |
| } |
| if (mUnforcedDiskWriteRunning.compareAndSet(false, true)) { |
| new Thread("UsageStatsService_DiskWriter") { |
| public void run() { |
| try { |
| if (localLOGV) Slog.d(TAG, "Disk writer thread starting."); |
| writeStatsToFile(true, false); |
| } finally { |
| mUnforcedDiskWriteRunning.set(false); |
| if (localLOGV) Slog.d(TAG, "Disk writer thread ending."); |
| } |
| } |
| }.start(); |
| } |
| return; |
| } |
| |
| synchronized (mFileLock) { |
| // Get the most recent file |
| mFileLeaf = getCurrentDateStr(FILE_PREFIX); |
| // Copy current file to back up |
| File backupFile = null; |
| if (mFile != null && mFile.exists()) { |
| backupFile = new File(mFile.getPath() + ".bak"); |
| if (!backupFile.exists()) { |
| if (!mFile.renameTo(backupFile)) { |
| Slog.w(TAG, "Failed to persist new stats"); |
| return; |
| } |
| } else { |
| mFile.delete(); |
| } |
| } |
| |
| try { |
| // Write mStats to file |
| writeStatsFLOCK(mFile); |
| mLastWriteElapsedTime.set(currElapsedTime); |
| if (dayChanged) { |
| mLastWriteDay.set(curDay); |
| // clear stats |
| synchronized (mStats) { |
| mStats.clear(); |
| } |
| mFile = new File(mDir, mFileLeaf); |
| checkFileLimitFLOCK(); |
| } |
| |
| if (dayChanged || forceWriteHistoryStats) { |
| // Write history stats daily, or when forced (due to shutdown). |
| writeHistoryStatsFLOCK(mHistoryFile); |
| } |
| |
| // Delete the backup file |
| if (backupFile != null) { |
| backupFile.delete(); |
| } |
| } catch (IOException e) { |
| Slog.w(TAG, "Failed writing stats to file:" + mFile); |
| if (backupFile != null) { |
| mFile.delete(); |
| backupFile.renameTo(mFile); |
| } |
| } |
| } |
| if (localLOGV) Slog.d(TAG, "Dumped usage stats."); |
| } |
| |
| private void writeStatsFLOCK(File file) throws IOException { |
| FileOutputStream stream = new FileOutputStream(file); |
| try { |
| Parcel out = Parcel.obtain(); |
| writeStatsToParcelFLOCK(out); |
| stream.write(out.marshall()); |
| out.recycle(); |
| stream.flush(); |
| } finally { |
| FileUtils.sync(stream); |
| stream.close(); |
| } |
| } |
| |
| private void writeStatsToParcelFLOCK(Parcel out) { |
| synchronized (mStatsLock) { |
| out.writeInt(VERSION); |
| Set<String> keys = mStats.keySet(); |
| out.writeInt(keys.size()); |
| for (String key : keys) { |
| PkgUsageStatsExtended pus = mStats.get(key); |
| out.writeString(key); |
| pus.writeToParcel(out); |
| } |
| } |
| } |
| |
| /** Filter out stats for any packages which aren't present anymore. */ |
| private void filterHistoryStats() { |
| synchronized (mStatsLock) { |
| IPackageManager pm = AppGlobals.getPackageManager(); |
| for (int i=0; i<mLastResumeTimes.size(); i++) { |
| String pkg = mLastResumeTimes.keyAt(i); |
| try { |
| if (pm.getPackageUid(pkg, 0) < 0) { |
| mLastResumeTimes.removeAt(i); |
| i--; |
| } |
| } catch (RemoteException e) { |
| } |
| } |
| } |
| } |
| |
| private void writeHistoryStatsFLOCK(AtomicFile historyFile) { |
| FileOutputStream fos = null; |
| try { |
| fos = historyFile.startWrite(); |
| XmlSerializer out = new FastXmlSerializer(); |
| out.setOutput(fos, "utf-8"); |
| out.startDocument(null, true); |
| out.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); |
| out.startTag(null, "usage-history"); |
| synchronized (mStatsLock) { |
| for (int i=0; i<mLastResumeTimes.size(); i++) { |
| out.startTag(null, "pkg"); |
| out.attribute(null, "name", mLastResumeTimes.keyAt(i)); |
| ArrayMap<String, Long> comp = mLastResumeTimes.valueAt(i); |
| for (int j=0; j<comp.size(); j++) { |
| out.startTag(null, "comp"); |
| out.attribute(null, "name", comp.keyAt(j)); |
| out.attribute(null, "lrt", comp.valueAt(j).toString()); |
| out.endTag(null, "comp"); |
| } |
| out.endTag(null, "pkg"); |
| } |
| } |
| out.endTag(null, "usage-history"); |
| out.endDocument(); |
| |
| historyFile.finishWrite(fos); |
| } catch (IOException e) { |
| Slog.w(TAG,"Error writing history stats" + e); |
| if (fos != null) { |
| historyFile.failWrite(fos); |
| } |
| } |
| } |
| |
| public void publish(Context context) { |
| mContext = context; |
| ServiceManager.addService(SERVICE_NAME, asBinder()); |
| } |
| |
| /** |
| * Start watching packages to remove stats when a package is uninstalled. |
| * May only be called when the package manager is ready. |
| */ |
| public void monitorPackages() { |
| mPackageMonitor = new PackageMonitor() { |
| @Override |
| public void onPackageRemovedAllUsers(String packageName, int uid) { |
| synchronized (mStatsLock) { |
| mLastResumeTimes.remove(packageName); |
| } |
| } |
| }; |
| mPackageMonitor.register(mContext, null, true); |
| filterHistoryStats(); |
| } |
| |
| public void shutdown() { |
| if (mPackageMonitor != null) { |
| mPackageMonitor.unregister(); |
| } |
| Slog.i(TAG, "Writing usage stats before shutdown..."); |
| writeStatsToFile(true, true); |
| } |
| |
| public static IUsageStats getService() { |
| if (sService != null) { |
| return sService; |
| } |
| IBinder b = ServiceManager.getService(SERVICE_NAME); |
| sService = asInterface(b); |
| return sService; |
| } |
| |
| public void noteResumeComponent(ComponentName componentName) { |
| enforceCallingPermission(); |
| String pkgName; |
| synchronized (mStatsLock) { |
| if ((componentName == null) || |
| ((pkgName = componentName.getPackageName()) == null)) { |
| return; |
| } |
| |
| final boolean samePackage = pkgName.equals(mLastResumedPkg); |
| if (mIsResumed) { |
| if (mLastResumedPkg != null) { |
| // We last resumed some other package... just pause it now |
| // to recover. |
| if (REPORT_UNEXPECTED) Slog.i(TAG, "Unexpected resume of " + pkgName |
| + " while already resumed in " + mLastResumedPkg); |
| PkgUsageStatsExtended pus = mStats.get(mLastResumedPkg); |
| if (pus != null) { |
| pus.updatePause(); |
| } |
| } |
| } |
| |
| final boolean sameComp = samePackage |
| && componentName.getClassName().equals(mLastResumedComp); |
| |
| mIsResumed = true; |
| mLastResumedPkg = pkgName; |
| mLastResumedComp = componentName.getClassName(); |
| |
| if (localLOGV) Slog.i(TAG, "started component:" + pkgName); |
| PkgUsageStatsExtended pus = mStats.get(pkgName); |
| if (pus == null) { |
| pus = new PkgUsageStatsExtended(); |
| mStats.put(pkgName, pus); |
| } |
| pus.updateResume(mLastResumedComp, !samePackage); |
| if (!sameComp) { |
| pus.addLaunchCount(mLastResumedComp); |
| } |
| |
| ArrayMap<String, Long> componentResumeTimes = mLastResumeTimes.get(pkgName); |
| if (componentResumeTimes == null) { |
| componentResumeTimes = new ArrayMap<String, Long>(); |
| mLastResumeTimes.put(pkgName, componentResumeTimes); |
| } |
| componentResumeTimes.put(mLastResumedComp, System.currentTimeMillis()); |
| } |
| } |
| |
| public void notePauseComponent(ComponentName componentName) { |
| enforceCallingPermission(); |
| |
| synchronized (mStatsLock) { |
| String pkgName; |
| if ((componentName == null) || |
| ((pkgName = componentName.getPackageName()) == null)) { |
| return; |
| } |
| if (!mIsResumed) { |
| if (REPORT_UNEXPECTED) Slog.i(TAG, "Something wrong here, didn't expect " |
| + pkgName + " to be paused"); |
| return; |
| } |
| mIsResumed = false; |
| |
| if (localLOGV) Slog.i(TAG, "paused component:"+pkgName); |
| |
| PkgUsageStatsExtended pus = mStats.get(pkgName); |
| if (pus == null) { |
| // Weird some error here |
| Slog.i(TAG, "No package stats for pkg:"+pkgName); |
| return; |
| } |
| pus.updatePause(); |
| } |
| |
| // Persist current data to file if needed. |
| writeStatsToFile(false, false); |
| } |
| |
| public void noteLaunchTime(ComponentName componentName, int millis) { |
| enforceCallingPermission(); |
| String pkgName; |
| if ((componentName == null) || |
| ((pkgName = componentName.getPackageName()) == null)) { |
| return; |
| } |
| |
| // Persist current data to file if needed. |
| writeStatsToFile(false, false); |
| |
| synchronized (mStatsLock) { |
| PkgUsageStatsExtended pus = mStats.get(pkgName); |
| if (pus != null) { |
| pus.addLaunchTime(componentName.getClassName(), millis); |
| } |
| } |
| } |
| |
| public void noteFullyDrawnTime(ComponentName componentName, int millis) { |
| enforceCallingPermission(); |
| String pkgName; |
| if ((componentName == null) || |
| ((pkgName = componentName.getPackageName()) == null)) { |
| return; |
| } |
| |
| // Persist current data to file if needed. |
| writeStatsToFile(false, false); |
| |
| synchronized (mStatsLock) { |
| PkgUsageStatsExtended pus = mStats.get(pkgName); |
| if (pus != null) { |
| pus.addFullyDrawnTime(componentName.getClassName(), millis); |
| } |
| } |
| } |
| |
| public void enforceCallingPermission() { |
| if (Binder.getCallingPid() == Process.myPid()) { |
| return; |
| } |
| mContext.enforcePermission(android.Manifest.permission.UPDATE_DEVICE_STATS, |
| Binder.getCallingPid(), Binder.getCallingUid(), null); |
| } |
| |
| public PkgUsageStats getPkgUsageStats(ComponentName componentName) { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.PACKAGE_USAGE_STATS, null); |
| String pkgName; |
| if ((componentName == null) || |
| ((pkgName = componentName.getPackageName()) == null)) { |
| return null; |
| } |
| synchronized (mStatsLock) { |
| PkgUsageStatsExtended pus = mStats.get(pkgName); |
| Map<String, Long> lastResumeTimes = mLastResumeTimes.get(pkgName); |
| if (pus == null && lastResumeTimes == null) { |
| return null; |
| } |
| int launchCount = pus != null ? pus.mLaunchCount : 0; |
| long usageTime = pus != null ? pus.mUsageTime : 0; |
| return new PkgUsageStats(pkgName, launchCount, usageTime, lastResumeTimes); |
| } |
| } |
| |
| public PkgUsageStats[] getAllPkgUsageStats() { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.PACKAGE_USAGE_STATS, null); |
| synchronized (mStatsLock) { |
| int size = mLastResumeTimes.size(); |
| if (size <= 0) { |
| return null; |
| } |
| PkgUsageStats retArr[] = new PkgUsageStats[size]; |
| for (int i=0; i<size; i++) { |
| String pkg = mLastResumeTimes.keyAt(i); |
| long usageTime = 0; |
| int launchCount = 0; |
| |
| PkgUsageStatsExtended pus = mStats.get(pkg); |
| if (pus != null) { |
| usageTime = pus.mUsageTime; |
| launchCount = pus.mLaunchCount; |
| } |
| retArr[i] = new PkgUsageStats(pkg, launchCount, usageTime, |
| mLastResumeTimes.valueAt(i)); |
| } |
| return retArr; |
| } |
| } |
| |
| static byte[] readFully(FileInputStream stream) throws java.io.IOException { |
| int pos = 0; |
| int avail = stream.available(); |
| byte[] data = new byte[avail]; |
| while (true) { |
| int amt = stream.read(data, pos, data.length-pos); |
| if (amt <= 0) { |
| return data; |
| } |
| pos += amt; |
| avail = stream.available(); |
| if (avail > data.length-pos) { |
| byte[] newData = new byte[pos+avail]; |
| System.arraycopy(data, 0, newData, 0, pos); |
| data = newData; |
| } |
| } |
| } |
| |
| private void collectDumpInfoFLOCK(PrintWriter pw, boolean isCompactOutput, |
| boolean deleteAfterPrint, HashSet<String> packages) { |
| List<String> fileList = getUsageStatsFileListFLOCK(); |
| if (fileList == null) { |
| return; |
| } |
| Collections.sort(fileList); |
| for (String file : fileList) { |
| if (deleteAfterPrint && file.equalsIgnoreCase(mFileLeaf)) { |
| // In this mode we don't print the current day's stats, since |
| // they are incomplete. |
| continue; |
| } |
| File dFile = new File(mDir, file); |
| String dateStr = file.substring(FILE_PREFIX.length()); |
| if (dateStr.length() > 0 && (dateStr.charAt(0) <= '0' || dateStr.charAt(0) >= '9')) { |
| // If the remainder does not start with a number, it is not a date, |
| // so we should ignore it for purposes here. |
| continue; |
| } |
| try { |
| Parcel in = getParcelForFile(dFile); |
| collectDumpInfoFromParcelFLOCK(in, pw, dateStr, isCompactOutput, |
| packages); |
| if (deleteAfterPrint) { |
| // Delete old file after collecting info only for checkin requests |
| dFile.delete(); |
| } |
| } catch (FileNotFoundException e) { |
| Slog.w(TAG, "Failed with "+e+" when collecting dump info from file : " + file); |
| return; |
| } catch (IOException e) { |
| Slog.w(TAG, "Failed with "+e+" when collecting dump info from file : "+file); |
| } |
| } |
| } |
| |
| private void collectDumpInfoFromParcelFLOCK(Parcel in, PrintWriter pw, |
| String date, boolean isCompactOutput, HashSet<String> packages) { |
| StringBuilder sb = new StringBuilder(512); |
| if (isCompactOutput) { |
| sb.append("D:"); |
| sb.append(CHECKIN_VERSION); |
| sb.append(','); |
| } else { |
| sb.append("Date: "); |
| } |
| |
| sb.append(date); |
| |
| int vers = in.readInt(); |
| if (vers != VERSION) { |
| sb.append(" (old data version)"); |
| pw.println(sb.toString()); |
| return; |
| } |
| |
| pw.println(sb.toString()); |
| int N = in.readInt(); |
| |
| while (N > 0) { |
| N--; |
| String pkgName = in.readString(); |
| if (pkgName == null) { |
| break; |
| } |
| sb.setLength(0); |
| PkgUsageStatsExtended pus = new PkgUsageStatsExtended(in); |
| if (packages != null && !packages.contains(pkgName)) { |
| // This package has not been requested -- don't print |
| // anything for it. |
| } else if (isCompactOutput) { |
| sb.append("P:"); |
| sb.append(pkgName); |
| sb.append(','); |
| sb.append(pus.mLaunchCount); |
| sb.append(','); |
| sb.append(pus.mUsageTime); |
| sb.append('\n'); |
| final int NLT = pus.mLaunchTimes.size(); |
| for (int i=0; i<NLT; i++) { |
| sb.append("A:"); |
| String activity = pus.mLaunchTimes.keyAt(i); |
| sb.append(activity); |
| TimeStats times = pus.mLaunchTimes.valueAt(i); |
| sb.append(','); |
| sb.append(times.count); |
| for (int j=0; j<NUM_LAUNCH_TIME_BINS; j++) { |
| sb.append(","); |
| sb.append(times.times[j]); |
| } |
| sb.append('\n'); |
| } |
| final int NFDT = pus.mFullyDrawnTimes.size(); |
| for (int i=0; i<NFDT; i++) { |
| sb.append("A:"); |
| String activity = pus.mFullyDrawnTimes.keyAt(i); |
| sb.append(activity); |
| TimeStats times = pus.mFullyDrawnTimes.valueAt(i); |
| for (int j=0; j<NUM_LAUNCH_TIME_BINS; j++) { |
| sb.append(","); |
| sb.append(times.times[j]); |
| } |
| sb.append('\n'); |
| } |
| |
| } else { |
| sb.append(" "); |
| sb.append(pkgName); |
| sb.append(": "); |
| sb.append(pus.mLaunchCount); |
| sb.append(" times, "); |
| sb.append(pus.mUsageTime); |
| sb.append(" ms"); |
| sb.append('\n'); |
| final int NLT = pus.mLaunchTimes.size(); |
| for (int i=0; i<NLT; i++) { |
| sb.append(" "); |
| sb.append(pus.mLaunchTimes.keyAt(i)); |
| TimeStats times = pus.mLaunchTimes.valueAt(i); |
| sb.append(": "); |
| sb.append(times.count); |
| sb.append(" starts"); |
| int lastBin = 0; |
| for (int j=0; j<NUM_LAUNCH_TIME_BINS-1; j++) { |
| if (times.times[j] != 0) { |
| sb.append(", "); |
| sb.append(lastBin); |
| sb.append('-'); |
| sb.append(LAUNCH_TIME_BINS[j]); |
| sb.append("ms="); |
| sb.append(times.times[j]); |
| } |
| lastBin = LAUNCH_TIME_BINS[j]; |
| } |
| if (times.times[NUM_LAUNCH_TIME_BINS-1] != 0) { |
| sb.append(", "); |
| sb.append(">="); |
| sb.append(lastBin); |
| sb.append("ms="); |
| sb.append(times.times[NUM_LAUNCH_TIME_BINS-1]); |
| } |
| sb.append('\n'); |
| } |
| final int NFDT = pus.mFullyDrawnTimes.size(); |
| for (int i=0; i<NFDT; i++) { |
| sb.append(" "); |
| sb.append(pus.mFullyDrawnTimes.keyAt(i)); |
| TimeStats times = pus.mFullyDrawnTimes.valueAt(i); |
| sb.append(": fully drawn "); |
| boolean needComma = false; |
| int lastBin = 0; |
| for (int j=0; j<NUM_LAUNCH_TIME_BINS-1; j++) { |
| if (times.times[j] != 0) { |
| if (needComma) { |
| sb.append(", "); |
| } else { |
| needComma = true; |
| } |
| sb.append(lastBin); |
| sb.append('-'); |
| sb.append(LAUNCH_TIME_BINS[j]); |
| sb.append("ms="); |
| sb.append(times.times[j]); |
| } |
| lastBin = LAUNCH_TIME_BINS[j]; |
| } |
| if (times.times[NUM_LAUNCH_TIME_BINS-1] != 0) { |
| if (needComma) { |
| sb.append(", "); |
| } |
| sb.append(">="); |
| sb.append(lastBin); |
| sb.append("ms="); |
| sb.append(times.times[NUM_LAUNCH_TIME_BINS-1]); |
| } |
| sb.append('\n'); |
| } |
| } |
| |
| pw.write(sb.toString()); |
| } |
| } |
| |
| /** |
| * Searches array of arguments for the specified string |
| * @param args array of argument strings |
| * @param value value to search for |
| * @return true if the value is contained in the array |
| */ |
| private static boolean scanArgs(String[] args, String value) { |
| if (args != null) { |
| for (String arg : args) { |
| if (value.equals(arg)) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Searches array of arguments for the specified string's data |
| * @param args array of argument strings |
| * @param value value to search for |
| * @return the string of data after the arg, or null if there is none |
| */ |
| private static String scanArgsData(String[] args, String value) { |
| if (args != null) { |
| final int N = args.length; |
| for (int i=0; i<N; i++) { |
| if (value.equals(args[i])) { |
| i++; |
| return i < N ? args[i] : null; |
| } |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| /* |
| * The data persisted to file is parsed and the stats are computed. |
| */ |
| protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| if (mContext.checkCallingPermission(android.Manifest.permission.DUMP) |
| != PackageManager.PERMISSION_GRANTED) { |
| pw.println("Permission Denial: can't dump UsageStats from from pid=" |
| + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid() |
| + " without permission " + android.Manifest.permission.DUMP); |
| return; |
| } |
| |
| final boolean isCheckinRequest = scanArgs(args, "--checkin"); |
| final boolean isCompactOutput = isCheckinRequest || scanArgs(args, "-c"); |
| final boolean deleteAfterPrint = isCheckinRequest || scanArgs(args, "-d"); |
| final String rawPackages = scanArgsData(args, "--packages"); |
| |
| // Make sure the current stats are written to the file. This |
| // doesn't need to be done if we are deleting files after printing, |
| // since it that case we won't print the current stats. |
| if (!deleteAfterPrint) { |
| writeStatsToFile(true, false); |
| } |
| |
| HashSet<String> packages = null; |
| if (rawPackages != null) { |
| if (!"*".equals(rawPackages)) { |
| // A * is a wildcard to show all packages. |
| String[] names = rawPackages.split(","); |
| for (String n : names) { |
| if (packages == null) { |
| packages = new HashSet<String>(); |
| } |
| packages.add(n); |
| } |
| } |
| } else if (isCheckinRequest) { |
| // If checkin doesn't specify any packages, then we simply won't |
| // show anything. |
| Slog.w(TAG, "Checkin without packages"); |
| return; |
| } |
| |
| synchronized (mFileLock) { |
| collectDumpInfoFLOCK(pw, isCompactOutput, deleteAfterPrint, packages); |
| } |
| } |
| |
| } |
