Remove unused code in StatsCompanionService

 */

package com.android.server.stats;

import static android.app.AppOpsManager.OP_FLAGS_ALL_TRUSTED;

import static android.content.pm.PackageInfo.REQUESTED_PERMISSION_GRANTED;

import static android.content.pm.PermissionInfo.PROTECTION_DANGEROUS;

import static android.os.Process.THREAD_PRIORITY_BACKGROUND;

import static android.os.Process.getUidForPid;

import static android.os.storage.VolumeInfo.TYPE_PRIVATE;

import static android.os.storage.VolumeInfo.TYPE_PUBLIC;

import static com.android.server.am.MemoryStatUtil.readMemoryStatFromFilesystem;

import static com.android.server.stats.pull.IonMemoryUtil.readProcessSystemIonHeapSizesFromDebugfs;

import static com.android.server.stats.pull.IonMemoryUtil.readSystemIonHeapSizeFromDebugfs;

import static com.android.server.stats.pull.ProcfsMemoryUtil.forEachPid;

import static com.android.server.stats.pull.ProcfsMemoryUtil.readCmdlineFromProcfs;

import static com.android.server.stats.pull.ProcfsMemoryUtil.readMemorySnapshotFromProcfs;

import android.annotation.NonNull;

import android.annotation.Nullable;

import android.app.ActivityManagerInternal;

import android.app.AlarmManager;

import android.app.AlarmManager.OnAlarmListener;

import android.app.AppOpsManager;

import android.app.AppOpsManager.HistoricalOps;

import android.app.AppOpsManager.HistoricalOpsRequest;

import android.app.AppOpsManager.HistoricalPackageOps;

import android.app.AppOpsManager.HistoricalUidOps;

import android.app.INotificationManager;

import android.app.ProcessMemoryState;

import android.app.StatsManager;

import android.bluetooth.BluetoothActivityEnergyInfo;

import android.bluetooth.BluetoothAdapter;

import android.bluetooth.UidTraffic;

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.PackageInfo;

import android.content.pm.PackageManager;

import android.content.pm.PermissionInfo;

import android.content.pm.UserInfo;

import android.hardware.biometrics.BiometricsProtoEnums;

import android.hardware.face.FaceManager;

import android.hardware.fingerprint.FingerprintManager;

import android.net.ConnectivityManager;

import android.net.INetworkStatsService;

import android.net.Network;

import android.net.NetworkRequest;

import android.net.NetworkStats;

import android.net.wifi.WifiManager;

import android.os.BatteryStats;

import android.os.BatteryStatsInternal;

import android.os.Binder;

import android.os.Build;

import android.os.Bundle;

import android.os.CoolingDevice;

import android.os.Environment;

import android.os.FileUtils;

import android.os.Handler;

import android.os.HandlerThread;

import android.os.IBinder;

import android.os.IStatsCompanionService;

import android.os.IStatsd;

import android.os.IStoraged;

import android.os.IThermalEventListener;

import android.os.IThermalService;

import android.os.Looper;

import android.os.ParcelFileDescriptor;

import android.os.Parcelable;

import android.os.RemoteException;

import android.os.ServiceManager;

import android.os.StatsFrameworkInitializer;

import android.os.StatFs;

import android.os.StatsLogEventWrapper;

import android.os.SynchronousResultReceiver;

import android.os.SystemClock;

import android.os.SystemProperties;

import android.os.Temperature;

import android.os.UserHandle;

import android.os.UserManager;

import android.os.connectivity.WifiActivityEnergyInfo;

import android.os.storage.DiskInfo;

import android.os.storage.StorageManager;

import android.os.storage.VolumeInfo;

import android.provider.Settings;

import android.stats.storage.StorageEnums;

import android.telephony.ModemActivityInfo;

import android.telephony.TelephonyManager;

import android.util.ArrayMap;

import android.util.ArraySet;

import android.util.Log;

import android.util.Slog;

import android.util.StatsLog;

import android.util.proto.ProtoOutputStream;

import com.android.internal.annotations.GuardedBy;

import com.android.internal.app.procstats.IProcessStats;

import com.android.internal.app.procstats.ProcessStats;

import com.android.internal.os.BatterySipper;

import com.android.internal.os.BatteryStatsHelper;

import com.android.internal.os.BinderCallsStats.ExportedCallStat;

import com.android.internal.os.KernelCpuSpeedReader;

import com.android.internal.os.KernelCpuThreadReader;

import com.android.internal.os.KernelCpuThreadReaderDiff;

import com.android.internal.os.KernelCpuThreadReaderSettingsObserver;

import com.android.internal.os.KernelCpuUidTimeReader.KernelCpuUidActiveTimeReader;

import com.android.internal.os.KernelCpuUidTimeReader.KernelCpuUidClusterTimeReader;

import com.android.internal.os.KernelCpuUidTimeReader.KernelCpuUidFreqTimeReader;

import com.android.internal.os.KernelCpuUidTimeReader.KernelCpuUidUserSysTimeReader;

import com.android.internal.os.KernelWakelockReader;

import com.android.internal.os.KernelWakelockStats;

import com.android.internal.os.LooperStats;

import com.android.internal.os.PowerProfile;

import com.android.internal.os.ProcessCpuTracker;

import com.android.internal.os.StoragedUidIoStatsReader;

import com.android.internal.util.DumpUtils;

import com.android.server.BinderCallsStatsService;

import com.android.server.LocalServices;

import com.android.server.SystemServiceManager;

import com.android.server.am.MemoryStatUtil.MemoryStat;

import com.android.server.notification.NotificationManagerService;

import com.android.server.role.RoleManagerInternal;

import com.android.server.stats.pull.IonMemoryUtil.IonAllocations;

import com.android.server.stats.pull.ProcfsMemoryUtil.MemorySnapshot;

import com.android.server.storage.DiskStatsFileLogger;

import com.android.server.storage.DiskStatsLoggingService;

import com.google.android.collect.Sets;

import libcore.io.IoUtils;

import org.json.JSONArray;

import org.json.JSONException;

import org.json.JSONObject;

import java.io.File;

import java.io.FileDescriptor;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.PrintWriter;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.HashMap;

import java.util.HashSet;

import java.util.List;

import java.util.Map;

import java.util.Map.Entry;

import java.util.Objects;

import java.util.Set;

import java.util.UUID;

import java.util.concurrent.CompletableFuture;

import java.util.concurrent.Executor;

import java.util.concurrent.ThreadLocalRandom;

import java.util.concurrent.TimeUnit;

import java.util.concurrent.TimeoutException;

/**

 * Helper service for statsd (the native stats management service in cmds/statsd/).

 * @hide

 */

public class StatsCompanionService extends IStatsCompanionService.Stub {

    /**

     * How long to wait on an individual subsystem to return its stats.

     */

    private static final long EXTERNAL_STATS_SYNC_TIMEOUT_MILLIS = 2000;

    private static final long MILLIS_IN_A_DAY = TimeUnit.DAYS.toMillis(1);

    public static final String RESULT_RECEIVER_CONTROLLER_KEY = "controller_activity";

    private static final int INSTALLER_FIELD_ID = 5;

    public static final int DEATH_THRESHOLD = 10;

    /**

     * Which native processes to snapshot memory for.

     *

     * <p>Processes are matched by their cmdline in procfs. Example: cat /proc/pid/cmdline returns

     * /system/bin/statsd for the stats daemon.

     */

    private static final Set<String> MEMORY_INTERESTING_NATIVE_PROCESSES = Sets.newHashSet(

            "/system/bin/statsd",  // Stats daemon.

            "/system/bin/surfaceflinger",

            "/system/bin/apexd",  // APEX daemon.

            "/system/bin/audioserver",

            "/system/bin/cameraserver",

            "/system/bin/drmserver",

            "/system/bin/healthd",

            "/system/bin/incidentd",

            "/system/bin/installd",

            "/system/bin/lmkd",  // Low memory killer daemon.

            "/system/bin/logd",

            "media.codec",

            "media.extractor",

            "media.metrics",

            "/system/bin/mediadrmserver",

            "/system/bin/mediaserver",

            "/system/bin/performanced",

            "/system/bin/tombstoned",

            "/system/bin/traced",  // Perfetto.

            "/system/bin/traced_probes",  // Perfetto.

            "webview_zygote",

            "zygote",

            "zygote64");

    /**

     * Lowest available uid for apps.

     *

     * <p>Used to quickly discard memory snapshots of the zygote forks from native process

     * measurements.

     */

    private static final int MIN_APP_UID = 10_000;

    private static final int CPU_TIME_PER_THREAD_FREQ_MAX_NUM_FREQUENCIES = 8;

    static final class CompanionHandler extends Handler {

        CompanionHandler(Looper looper) {

    private final Context mContext;

    private final AlarmManager mAlarmManager;

    private final INetworkStatsService mNetworkStatsService;

    @GuardedBy("sStatsdLock")

    private static IStatsd sStatsd;

    private static final Object sStatsdLock = new Object();

    private StatsManagerService mStatsManagerService;

    private final KernelWakelockReader mKernelWakelockReader = new KernelWakelockReader();

    private final KernelWakelockStats mTmpWakelockStats = new KernelWakelockStats();

    private WifiManager mWifiManager = null;

    private TelephonyManager mTelephony = null;

    @GuardedBy("sStatsdLock")

    private final HashSet<Long> mDeathTimeMillis = new HashSet<>();

    @GuardedBy("sStatsdLock")

    private final HashMap<Long, String> mDeletedFiles = new HashMap<>();

    private final CompanionHandler mHandler;

    // Disables throttler on CPU time readers.

    private KernelCpuUidUserSysTimeReader mCpuUidUserSysTimeReader =

            new KernelCpuUidUserSysTimeReader(false);

    private KernelCpuSpeedReader[] mKernelCpuSpeedReaders;

    private KernelCpuUidFreqTimeReader mCpuUidFreqTimeReader =

            new KernelCpuUidFreqTimeReader(false);

    private KernelCpuUidActiveTimeReader mCpuUidActiveTimeReader =

            new KernelCpuUidActiveTimeReader(false);

    private KernelCpuUidClusterTimeReader mCpuUidClusterTimeReader =

            new KernelCpuUidClusterTimeReader(false);

    private StoragedUidIoStatsReader mStoragedUidIoStatsReader =

            new StoragedUidIoStatsReader();

    @Nullable

    private final KernelCpuThreadReaderDiff mKernelCpuThreadReader;

    private long mDebugElapsedClockPreviousValue = 0;

    private long mDebugElapsedClockPullCount = 0;

    private long mDebugFailingElapsedClockPreviousValue = 0;

    private long mDebugFailingElapsedClockPullCount = 0;

    private BatteryStatsHelper mBatteryStatsHelper = null;

    private static final int MAX_BATTERY_STATS_HELPER_FREQUENCY_MS = 1000;

    private long mBatteryStatsHelperTimestampMs = -MAX_BATTERY_STATS_HELPER_FREQUENCY_MS;

    private static IThermalService sThermalService;

    private File mBaseDir =

            new File(SystemServiceManager.ensureSystemDir(), "stats_companion");

    @GuardedBy("this")

    ProcessCpuTracker mProcessCpuTracker = null;

    public StatsCompanionService(Context context) {

        super();

        mContext = context;

        mAlarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE);

        mNetworkStatsService = INetworkStatsService.Stub.asInterface(

              ServiceManager.getService(Context.NETWORK_STATS_SERVICE));

        mBaseDir.mkdirs();

        mAppUpdateReceiver = new AppUpdateReceiver();

        mUserUpdateReceiver = new BroadcastReceiver() {

            @Override

        };

        mShutdownEventReceiver = new ShutdownEventReceiver();

        if (DEBUG) Slog.d(TAG, "Registered receiver for ACTION_PACKAGE_REPLACED and ADDED.");

        PowerProfile powerProfile = new PowerProfile(context);

        final int numClusters = powerProfile.getNumCpuClusters();

        mKernelCpuSpeedReaders = new KernelCpuSpeedReader[numClusters];

        int firstCpuOfCluster = 0;

        for (int i = 0; i < numClusters; i++) {

            final int numSpeedSteps = powerProfile.getNumSpeedStepsInCpuCluster(i);

            mKernelCpuSpeedReaders[i] = new KernelCpuSpeedReader(firstCpuOfCluster,

                    numSpeedSteps);

            firstCpuOfCluster += powerProfile.getNumCoresInCpuCluster(i);

        }

        HandlerThread handlerThread = new HandlerThread(TAG);

        handlerThread.start();

        mHandler = new CompanionHandler(handlerThread.getLooper());

        mKernelCpuThreadReader =

                KernelCpuThreadReaderSettingsObserver.getSettingsModifiedReader(mContext);

    }

    private final static int[] toIntArray(List<Integer> list) {

import static android.content.pm.PackageInfo.REQUESTED_PERMISSION_GRANTED;

import static android.content.pm.PermissionInfo.PROTECTION_DANGEROUS;

import static android.os.Debug.getIonHeapsSizeKb;

import static android.os.Process.THREAD_PRIORITY_BACKGROUND;

import static android.os.Process.getUidForPid;

import static android.os.storage.VolumeInfo.TYPE_PRIVATE;

import static android.os.storage.VolumeInfo.TYPE_PUBLIC;

import static com.android.server.stats.pull.ProcfsMemoryUtil.readCmdlineFromProcfs;

import static com.android.server.stats.pull.ProcfsMemoryUtil.readMemorySnapshotFromProcfs;

import android.annotation.NonNull;

import android.annotation.Nullable;

import android.app.ActivityManagerInternal;

import android.app.AlarmManager;

import android.app.AlarmManager.OnAlarmListener;

import android.app.AppOpsManager;

import android.app.AppOpsManager.HistoricalOps;

import android.app.AppOpsManager.HistoricalOpsRequest;

import android.bluetooth.BluetoothActivityEnergyInfo;

import android.bluetooth.BluetoothAdapter;

import android.bluetooth.UidTraffic;

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.PackageInfo;

import android.content.pm.PackageManager;

import android.os.Bundle;

import android.os.CoolingDevice;

import android.os.Environment;

import android.os.FileUtils;

import android.os.Handler;

import android.os.HandlerThread;

import android.os.IBinder;

import android.os.IPullAtomCallback;

import android.os.IStatsCompanionService;

import android.os.IStatsd;

import android.os.IStoraged;

import android.os.IThermalEventListener;

import android.os.IThermalService;

import android.os.Looper;

import android.os.ParcelFileDescriptor;

import android.os.Parcelable;

import android.os.RemoteException;

import android.os.ServiceManager;

import android.os.StatFs;

import android.os.StatsLogEventWrapper;

import android.os.SynchronousResultReceiver;

import android.os.SystemClock;

import android.os.SystemProperties;

import com.android.internal.os.PowerProfile;

import com.android.internal.os.ProcessCpuTracker;

import com.android.internal.os.StoragedUidIoStatsReader;

import com.android.internal.util.DumpUtils;

import com.android.server.BinderCallsStatsService;

import com.android.server.LocalServices;

import com.android.server.SystemService;

import org.json.JSONObject;

import java.io.File;

import java.io.FileDescriptor;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.PrintWriter;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.HashMap;

import java.util.HashSet;

import java.util.List;

import java.util.Map;

import java.util.Map.Entry;

import java.util.MissingResourceException;

import java.util.Objects;

import java.util.Set;

import java.util.UUID;

import java.util.concurrent.CompletableFuture;