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      1 package com.android.server.am;
      2 
      3 import static android.app.ActivityManager.START_SUCCESS;
      4 import static android.app.ActivityManager.START_TASK_TO_FRONT;
      5 import static android.app.ActivityManagerInternal.APP_TRANSITION_TIMEOUT;
      6 import static android.app.WindowConfiguration.WINDOWING_MODE_SPLIT_SCREEN_PRIMARY;
      7 import static android.app.WindowConfiguration.WINDOWING_MODE_FREEFORM;
      8 import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN;
      9 import static android.app.WindowConfiguration.WINDOWING_MODE_PINNED;
     10 import static android.app.WindowConfiguration.WINDOWING_MODE_SPLIT_SCREEN_SECONDARY;
     11 import static android.app.WindowConfiguration.WINDOWING_MODE_UNDEFINED;
     12 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.APP_TRANSITION;
     13 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.APP_TRANSITION_BIND_APPLICATION_DELAY_MS;
     14 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.APP_TRANSITION_CALLING_PACKAGE_NAME;
     15 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.APP_TRANSITION_CANCELLED;
     16 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.APP_TRANSITION_DELAY_MS;
     17 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.APP_TRANSITION_DEVICE_UPTIME_SECONDS;
     18 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.APP_TRANSITION_IS_EPHEMERAL;
     19 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.APP_TRANSITION_PROCESS_RUNNING;
     20 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.APP_TRANSITION_REPORTED_DRAWN;
     21 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.APP_TRANSITION_REPORTED_DRAWN_MS;
     22 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.APP_TRANSITION_STARTING_WINDOW_DELAY_MS;
     23 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.APP_TRANSITION_WINDOWS_DRAWN_DELAY_MS;
     24 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.FIELD_CLASS_NAME;
     25 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.FIELD_INSTANT_APP_LAUNCH_TOKEN;
     26 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.PACKAGE_OPTIMIZATION_COMPILATION_REASON;
     27 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.PACKAGE_OPTIMIZATION_COMPILATION_FILTER;
     28 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.TYPE_TRANSITION_COLD_LAUNCH;
     29 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.TYPE_TRANSITION_HOT_LAUNCH;
     30 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.TYPE_TRANSITION_REPORTED_DRAWN_NO_BUNDLE;
     31 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.TYPE_TRANSITION_REPORTED_DRAWN_WITH_BUNDLE;
     32 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.TYPE_TRANSITION_WARM_LAUNCH;
     33 import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_METRICS;
     34 import static com.android.server.am.ActivityManagerDebugConfig.TAG_AM;
     35 import static com.android.server.am.ActivityManagerDebugConfig.TAG_WITH_CLASS_NAME;
     36 import static com.android.server.am.MemoryStatUtil.MemoryStat;
     37 import static com.android.server.am.MemoryStatUtil.readMemoryStatFromFilesystem;
     38 
     39 import android.content.Context;
     40 import android.content.pm.ApplicationInfo;
     41 import android.content.pm.dex.ArtManagerInternal;
     42 import android.content.pm.dex.PackageOptimizationInfo;
     43 import android.metrics.LogMaker;
     44 import android.os.Handler;
     45 import android.os.Looper;
     46 import android.os.Message;
     47 import android.os.SystemClock;
     48 import android.util.Slog;
     49 import android.util.SparseArray;
     50 import android.util.SparseIntArray;
     51 import android.util.StatsLog;
     52 
     53 import com.android.internal.logging.MetricsLogger;
     54 import com.android.internal.os.BackgroundThread;
     55 import com.android.internal.os.SomeArgs;
     56 import com.android.server.LocalServices;
     57 
     58 import java.util.ArrayList;
     59 
     60 /**
     61  * Handles logging into Tron.
     62  */
     63 class ActivityMetricsLogger {
     64 
     65     private static final String TAG = TAG_WITH_CLASS_NAME ? "ActivityMetricsLogger" : TAG_AM;
     66 
     67     // Window modes we are interested in logging. If we ever introduce a new type, we need to add
     68     // a value here and increase the {@link #TRON_WINDOW_STATE_VARZ_STRINGS} array.
     69     private static final int WINDOW_STATE_STANDARD = 0;
     70     private static final int WINDOW_STATE_SIDE_BY_SIDE = 1;
     71     private static final int WINDOW_STATE_FREEFORM = 2;
     72     private static final int WINDOW_STATE_ASSISTANT = 3;
     73     private static final int WINDOW_STATE_INVALID = -1;
     74 
     75     private static final long INVALID_START_TIME = -1;
     76 
     77     private static final int MSG_CHECK_VISIBILITY = 0;
     78 
     79     // Preallocated strings we are sending to tron, so we don't have to allocate a new one every
     80     // time we log.
     81     private static final String[] TRON_WINDOW_STATE_VARZ_STRINGS = {
     82             "window_time_0", "window_time_1", "window_time_2", "window_time_3"};
     83 
     84     private int mWindowState = WINDOW_STATE_STANDARD;
     85     private long mLastLogTimeSecs;
     86     private final ActivityStackSupervisor mSupervisor;
     87     private final Context mContext;
     88     private final MetricsLogger mMetricsLogger = new MetricsLogger();
     89 
     90     private long mCurrentTransitionStartTime = INVALID_START_TIME;
     91     private long mLastTransitionStartTime = INVALID_START_TIME;
     92 
     93     private int mCurrentTransitionDeviceUptime;
     94     private int mCurrentTransitionDelayMs;
     95     private boolean mLoggedTransitionStarting;
     96 
     97     private final SparseArray<WindowingModeTransitionInfo> mWindowingModeTransitionInfo =
     98             new SparseArray<>();
     99     private final SparseArray<WindowingModeTransitionInfo> mLastWindowingModeTransitionInfo =
    100             new SparseArray<>();
    101     private final H mHandler;
    102 
    103     private ArtManagerInternal mArtManagerInternal;
    104 
    105     private final class H extends Handler {
    106 
    107         public H(Looper looper) {
    108             super(looper);
    109         }
    110 
    111         @Override
    112         public void handleMessage(Message msg) {
    113             switch (msg.what) {
    114                 case MSG_CHECK_VISIBILITY:
    115                     final SomeArgs args = (SomeArgs) msg.obj;
    116                     checkVisibility((TaskRecord) args.arg1, (ActivityRecord) args.arg2);
    117                     break;
    118             }
    119         }
    120     }
    121 
    122     private final class WindowingModeTransitionInfo {
    123         private ActivityRecord launchedActivity;
    124         private int startResult;
    125         private boolean currentTransitionProcessRunning;
    126         private int windowsDrawnDelayMs;
    127         private int startingWindowDelayMs = -1;
    128         private int bindApplicationDelayMs = -1;
    129         private int reason = APP_TRANSITION_TIMEOUT;
    130         private boolean loggedWindowsDrawn;
    131         private boolean loggedStartingWindowDrawn;
    132     }
    133 
    134     private final class WindowingModeTransitionInfoSnapshot {
    135         final private ApplicationInfo applicationInfo;
    136         final private ProcessRecord processRecord;
    137         final private String packageName;
    138         final private String launchedActivityName;
    139         final private String launchedActivityLaunchedFromPackage;
    140         final private String launchedActivityLaunchToken;
    141         final private String launchedActivityAppRecordRequiredAbi;
    142         final private String processName;
    143         final private int reason;
    144         final private int startingWindowDelayMs;
    145         final private int bindApplicationDelayMs;
    146         final private int windowsDrawnDelayMs;
    147         final private int type;
    148 
    149         private WindowingModeTransitionInfoSnapshot(WindowingModeTransitionInfo info) {
    150             applicationInfo = info.launchedActivity.appInfo;
    151             packageName = info.launchedActivity.packageName;
    152             launchedActivityName = info.launchedActivity.info.name;
    153             launchedActivityLaunchedFromPackage = info.launchedActivity.launchedFromPackage;
    154             launchedActivityLaunchToken = info.launchedActivity.info.launchToken;
    155             launchedActivityAppRecordRequiredAbi = info.launchedActivity.app == null
    156                     ? null
    157                     : info.launchedActivity.app.requiredAbi;
    158             reason = info.reason;
    159             startingWindowDelayMs = info.startingWindowDelayMs;
    160             bindApplicationDelayMs = info.bindApplicationDelayMs;
    161             windowsDrawnDelayMs = info.windowsDrawnDelayMs;
    162             type = getTransitionType(info);
    163             processRecord = findProcessForActivity(info.launchedActivity);
    164             processName = info.launchedActivity.processName;
    165         }
    166     }
    167 
    168     ActivityMetricsLogger(ActivityStackSupervisor supervisor, Context context, Looper looper) {
    169         mLastLogTimeSecs = SystemClock.elapsedRealtime() / 1000;
    170         mSupervisor = supervisor;
    171         mContext = context;
    172         mHandler = new H(looper);
    173     }
    174 
    175     void logWindowState() {
    176         final long now = SystemClock.elapsedRealtime() / 1000;
    177         if (mWindowState != WINDOW_STATE_INVALID) {
    178             // We log even if the window state hasn't changed, because the user might remain in
    179             // home/fullscreen move forever and we would like to track this kind of behavior
    180             // too.
    181             MetricsLogger.count(mContext, TRON_WINDOW_STATE_VARZ_STRINGS[mWindowState],
    182                     (int) (now - mLastLogTimeSecs));
    183         }
    184         mLastLogTimeSecs = now;
    185 
    186         mWindowState = WINDOW_STATE_INVALID;
    187         ActivityStack stack = mSupervisor.getFocusedStack();
    188         if (stack.isActivityTypeAssistant()) {
    189             mWindowState = WINDOW_STATE_ASSISTANT;
    190             return;
    191         }
    192 
    193         int windowingMode = stack.getWindowingMode();
    194         if (windowingMode == WINDOWING_MODE_PINNED) {
    195             stack = mSupervisor.findStackBehind(stack);
    196             windowingMode = stack.getWindowingMode();
    197         }
    198         switch (windowingMode) {
    199             case WINDOWING_MODE_FULLSCREEN:
    200                 mWindowState = WINDOW_STATE_STANDARD;
    201                 break;
    202             case WINDOWING_MODE_SPLIT_SCREEN_PRIMARY:
    203             case WINDOWING_MODE_SPLIT_SCREEN_SECONDARY:
    204                 mWindowState = WINDOW_STATE_SIDE_BY_SIDE;
    205                 break;
    206             case WINDOWING_MODE_FREEFORM:
    207                 mWindowState = WINDOW_STATE_FREEFORM;
    208                 break;
    209             default:
    210                 if (windowingMode != WINDOWING_MODE_UNDEFINED) {
    211                     throw new IllegalStateException("Unknown windowing mode for stack=" + stack
    212                             + " windowingMode=" + windowingMode);
    213                 }
    214         }
    215     }
    216 
    217     /**
    218      * Notifies the tracker at the earliest possible point when we are starting to launch an
    219      * activity.
    220      */
    221     void notifyActivityLaunching() {
    222         if (!isAnyTransitionActive()) {
    223             if (DEBUG_METRICS) Slog.i(TAG, "notifyActivityLaunching");
    224             mCurrentTransitionStartTime = SystemClock.uptimeMillis();
    225             mLastTransitionStartTime = mCurrentTransitionStartTime;
    226         }
    227     }
    228 
    229     /**
    230      * Notifies the tracker that the activity is actually launching.
    231      *
    232      * @param resultCode one of the ActivityManager.START_* flags, indicating the result of the
    233      *                   launch
    234      * @param launchedActivity the activity that is being launched
    235      */
    236     void notifyActivityLaunched(int resultCode, ActivityRecord launchedActivity) {
    237         final ProcessRecord processRecord = findProcessForActivity(launchedActivity);
    238         final boolean processRunning = processRecord != null;
    239 
    240         // We consider this a "process switch" if the process of the activity that gets launched
    241         // didn't have an activity that was in started state. In this case, we assume that lot
    242         // of caches might be purged so the time until it produces the first frame is very
    243         // interesting.
    244         final boolean processSwitch = processRecord == null
    245                 || !hasStartedActivity(processRecord, launchedActivity);
    246 
    247         notifyActivityLaunched(resultCode, launchedActivity, processRunning, processSwitch);
    248     }
    249 
    250     private boolean hasStartedActivity(ProcessRecord record, ActivityRecord launchedActivity) {
    251         final ArrayList<ActivityRecord> activities = record.activities;
    252         for (int i = activities.size() - 1; i >= 0; i--) {
    253             final ActivityRecord activity = activities.get(i);
    254             if (launchedActivity == activity) {
    255                 continue;
    256             }
    257             if (!activity.stopped) {
    258                 return true;
    259             }
    260         }
    261         return false;
    262     }
    263 
    264     /**
    265      * Notifies the tracker the the activity is actually launching.
    266      *
    267      * @param resultCode one of the ActivityManager.START_* flags, indicating the result of the
    268      *                   launch
    269      * @param launchedActivity the activity being launched
    270      * @param processRunning whether the process that will contains the activity is already running
    271      * @param processSwitch whether the process that will contain the activity didn't have any
    272      *                      activity that was stopped, i.e. the started activity is "switching"
    273      *                      processes
    274      */
    275     private void notifyActivityLaunched(int resultCode, ActivityRecord launchedActivity,
    276             boolean processRunning, boolean processSwitch) {
    277 
    278         if (DEBUG_METRICS) Slog.i(TAG, "notifyActivityLaunched"
    279                 + " resultCode=" + resultCode
    280                 + " launchedActivity=" + launchedActivity
    281                 + " processRunning=" + processRunning
    282                 + " processSwitch=" + processSwitch);
    283 
    284         // If we are already in an existing transition, only update the activity name, but not the
    285         // other attributes.
    286         final int windowingMode = launchedActivity != null
    287                 ? launchedActivity.getWindowingMode()
    288                 : WINDOWING_MODE_UNDEFINED;
    289 
    290         if (mCurrentTransitionStartTime == INVALID_START_TIME) {
    291             return;
    292         }
    293 
    294         final WindowingModeTransitionInfo info = mWindowingModeTransitionInfo.get(windowingMode);
    295         if (launchedActivity != null && info != null) {
    296             info.launchedActivity = launchedActivity;
    297             return;
    298         }
    299 
    300         final boolean otherWindowModesLaunching =
    301                 mWindowingModeTransitionInfo.size() > 0 && info == null;
    302         if ((!isLoggableResultCode(resultCode) || launchedActivity == null || !processSwitch
    303                 || windowingMode == WINDOWING_MODE_UNDEFINED) && !otherWindowModesLaunching) {
    304 
    305             // Failed to launch or it was not a process switch, so we don't care about the timing.
    306             reset(true /* abort */);
    307             return;
    308         } else if (otherWindowModesLaunching) {
    309             // Don't log this windowing mode but continue with the other windowing modes.
    310             return;
    311         }
    312 
    313         if (DEBUG_METRICS) Slog.i(TAG, "notifyActivityLaunched successful");
    314 
    315         final WindowingModeTransitionInfo newInfo = new WindowingModeTransitionInfo();
    316         newInfo.launchedActivity = launchedActivity;
    317         newInfo.currentTransitionProcessRunning = processRunning;
    318         newInfo.startResult = resultCode;
    319         mWindowingModeTransitionInfo.put(windowingMode, newInfo);
    320         mLastWindowingModeTransitionInfo.put(windowingMode, newInfo);
    321         mCurrentTransitionDeviceUptime = (int) (SystemClock.uptimeMillis() / 1000);
    322     }
    323 
    324     /**
    325      * @return True if we should start logging an event for an activity start that returned
    326      *         {@code resultCode} and that we'll indeed get a windows drawn event.
    327      */
    328     private boolean isLoggableResultCode(int resultCode) {
    329         return resultCode == START_SUCCESS || resultCode == START_TASK_TO_FRONT;
    330     }
    331 
    332     /**
    333      * Notifies the tracker that all windows of the app have been drawn.
    334      */
    335     void notifyWindowsDrawn(int windowingMode, long timestamp) {
    336         if (DEBUG_METRICS) Slog.i(TAG, "notifyWindowsDrawn windowingMode=" + windowingMode);
    337 
    338         final WindowingModeTransitionInfo info = mWindowingModeTransitionInfo.get(windowingMode);
    339         if (info == null || info.loggedWindowsDrawn) {
    340             return;
    341         }
    342         info.windowsDrawnDelayMs = calculateDelay(timestamp);
    343         info.loggedWindowsDrawn = true;
    344         if (allWindowsDrawn() && mLoggedTransitionStarting) {
    345             reset(false /* abort */);
    346         }
    347     }
    348 
    349     /**
    350      * Notifies the tracker that the starting window was drawn.
    351      */
    352     void notifyStartingWindowDrawn(int windowingMode, long timestamp) {
    353         final WindowingModeTransitionInfo info = mWindowingModeTransitionInfo.get(windowingMode);
    354         if (info == null || info.loggedStartingWindowDrawn) {
    355             return;
    356         }
    357         info.loggedStartingWindowDrawn = true;
    358         info.startingWindowDelayMs = calculateDelay(timestamp);
    359     }
    360 
    361     /**
    362      * Notifies the tracker that the app transition is starting.
    363      *
    364      * @param windowingModeToReason A map from windowing mode to a reason integer, which must be on
    365      *                              of ActivityManagerInternal.APP_TRANSITION_* reasons.
    366      */
    367     void notifyTransitionStarting(SparseIntArray windowingModeToReason, long timestamp) {
    368         if (!isAnyTransitionActive() || mLoggedTransitionStarting) {
    369             return;
    370         }
    371         if (DEBUG_METRICS) Slog.i(TAG, "notifyTransitionStarting");
    372         mCurrentTransitionDelayMs = calculateDelay(timestamp);
    373         mLoggedTransitionStarting = true;
    374         for (int index = windowingModeToReason.size() - 1; index >= 0; index--) {
    375             final int windowingMode = windowingModeToReason.keyAt(index);
    376             final WindowingModeTransitionInfo info = mWindowingModeTransitionInfo.get(
    377                     windowingMode);
    378             if (info == null) {
    379                 continue;
    380             }
    381             info.reason = windowingModeToReason.valueAt(index);
    382         }
    383         if (allWindowsDrawn()) {
    384             reset(false /* abort */);
    385         }
    386     }
    387 
    388     /**
    389      * Notifies the tracker that the visibility of an app is changing.
    390      *
    391      * @param activityRecord the app that is changing its visibility
    392      */
    393     void notifyVisibilityChanged(ActivityRecord activityRecord) {
    394         final WindowingModeTransitionInfo info = mWindowingModeTransitionInfo.get(
    395                 activityRecord.getWindowingMode());
    396         if (info == null) {
    397             return;
    398         }
    399         if (info.launchedActivity != activityRecord) {
    400             return;
    401         }
    402         final TaskRecord t = activityRecord.getTask();
    403         final SomeArgs args = SomeArgs.obtain();
    404         args.arg1 = t;
    405         args.arg2 = activityRecord;
    406         mHandler.obtainMessage(MSG_CHECK_VISIBILITY, args).sendToTarget();
    407     }
    408 
    409     private void checkVisibility(TaskRecord t, ActivityRecord r) {
    410         synchronized (mSupervisor.mService) {
    411 
    412             final WindowingModeTransitionInfo info = mWindowingModeTransitionInfo.get(
    413                     r.getWindowingMode());
    414 
    415             // If we have an active transition that's waiting on a certain activity that will be
    416             // invisible now, we'll never get onWindowsDrawn, so abort the transition if necessary.
    417             if (info != null && !t.isVisible()) {
    418                 if (DEBUG_METRICS) Slog.i(TAG, "notifyVisibilityChanged to invisible"
    419                         + " activity=" + r);
    420                 logAppTransitionCancel(info);
    421                 mWindowingModeTransitionInfo.remove(r.getWindowingMode());
    422                 if (mWindowingModeTransitionInfo.size() == 0) {
    423                     reset(true /* abort */);
    424                 }
    425             }
    426         }
    427     }
    428 
    429     /**
    430      * Notifies the tracker that we called immediately before we call bindApplication on the client.
    431      *
    432      * @param app The client into which we'll call bindApplication.
    433      */
    434     void notifyBindApplication(ProcessRecord app) {
    435         for (int i = mWindowingModeTransitionInfo.size() - 1; i >= 0; i--) {
    436             final WindowingModeTransitionInfo info = mWindowingModeTransitionInfo.valueAt(i);
    437 
    438             // App isn't attached to record yet, so match with info.
    439             if (info.launchedActivity.appInfo == app.info) {
    440                 info.bindApplicationDelayMs = calculateCurrentDelay();
    441             }
    442         }
    443     }
    444 
    445     private boolean allWindowsDrawn() {
    446         for (int index = mWindowingModeTransitionInfo.size() - 1; index >= 0; index--) {
    447             if (!mWindowingModeTransitionInfo.valueAt(index).loggedWindowsDrawn) {
    448                 return false;
    449             }
    450         }
    451         return true;
    452     }
    453 
    454     private boolean isAnyTransitionActive() {
    455         return mCurrentTransitionStartTime != INVALID_START_TIME
    456                 && mWindowingModeTransitionInfo.size() > 0;
    457     }
    458 
    459     private void reset(boolean abort) {
    460         if (DEBUG_METRICS) Slog.i(TAG, "reset abort=" + abort);
    461         if (!abort && isAnyTransitionActive()) {
    462             logAppTransitionMultiEvents();
    463         }
    464         mCurrentTransitionStartTime = INVALID_START_TIME;
    465         mCurrentTransitionDelayMs = -1;
    466         mLoggedTransitionStarting = false;
    467         mWindowingModeTransitionInfo.clear();
    468     }
    469 
    470     private int calculateCurrentDelay() {
    471 
    472         // Shouldn't take more than 25 days to launch an app, so int is fine here.
    473         return (int) (SystemClock.uptimeMillis() - mCurrentTransitionStartTime);
    474     }
    475 
    476     private int calculateDelay(long timestamp) {
    477         // Shouldn't take more than 25 days to launch an app, so int is fine here.
    478         return (int) (timestamp - mCurrentTransitionStartTime);
    479     }
    480 
    481     private void logAppTransitionCancel(WindowingModeTransitionInfo info) {
    482         final int type = getTransitionType(info);
    483         if (type == -1) {
    484             return;
    485         }
    486         final LogMaker builder = new LogMaker(APP_TRANSITION_CANCELLED);
    487         builder.setPackageName(info.launchedActivity.packageName);
    488         builder.setType(type);
    489         builder.addTaggedData(FIELD_CLASS_NAME, info.launchedActivity.info.name);
    490         mMetricsLogger.write(builder);
    491         StatsLog.write(
    492                 StatsLog.APP_START_CANCELED,
    493                 info.launchedActivity.appInfo.uid,
    494                 info.launchedActivity.packageName,
    495                 convertAppStartTransitionType(type),
    496                 info.launchedActivity.info.name);
    497     }
    498 
    499     private void logAppTransitionMultiEvents() {
    500         if (DEBUG_METRICS) Slog.i(TAG, "logging transition events");
    501         for (int index = mWindowingModeTransitionInfo.size() - 1; index >= 0; index--) {
    502             final WindowingModeTransitionInfo info = mWindowingModeTransitionInfo.valueAt(index);
    503             final int type = getTransitionType(info);
    504             if (type == -1) {
    505                 return;
    506             }
    507 
    508             // Take a snapshot of the transition info before sending it to the handler for logging.
    509             // This will avoid any races with other operations that modify the ActivityRecord.
    510             final WindowingModeTransitionInfoSnapshot infoSnapshot =
    511                     new WindowingModeTransitionInfoSnapshot(info);
    512             final int currentTransitionDeviceUptime = mCurrentTransitionDeviceUptime;
    513             final int currentTransitionDelayMs = mCurrentTransitionDelayMs;
    514             BackgroundThread.getHandler().post(() -> logAppTransition(
    515                     currentTransitionDeviceUptime, currentTransitionDelayMs, infoSnapshot));
    516 
    517             info.launchedActivity.info.launchToken = null;
    518         }
    519     }
    520 
    521     // This gets called on a background thread without holding the activity manager lock.
    522     private void logAppTransition(int currentTransitionDeviceUptime, int currentTransitionDelayMs,
    523             WindowingModeTransitionInfoSnapshot info) {
    524         final LogMaker builder = new LogMaker(APP_TRANSITION);
    525         builder.setPackageName(info.packageName);
    526         builder.setType(info.type);
    527         builder.addTaggedData(FIELD_CLASS_NAME, info.launchedActivityName);
    528         final boolean isInstantApp = info.applicationInfo.isInstantApp();
    529         if (info.launchedActivityLaunchedFromPackage != null) {
    530             builder.addTaggedData(APP_TRANSITION_CALLING_PACKAGE_NAME,
    531                     info.launchedActivityLaunchedFromPackage);
    532         }
    533         String launchToken = info.launchedActivityLaunchToken;
    534         if (launchToken != null) {
    535             builder.addTaggedData(FIELD_INSTANT_APP_LAUNCH_TOKEN, launchToken);
    536         }
    537         builder.addTaggedData(APP_TRANSITION_IS_EPHEMERAL, isInstantApp ? 1 : 0);
    538         builder.addTaggedData(APP_TRANSITION_DEVICE_UPTIME_SECONDS,
    539                 currentTransitionDeviceUptime);
    540         builder.addTaggedData(APP_TRANSITION_DELAY_MS, currentTransitionDelayMs);
    541         builder.setSubtype(info.reason);
    542         if (info.startingWindowDelayMs != -1) {
    543             builder.addTaggedData(APP_TRANSITION_STARTING_WINDOW_DELAY_MS,
    544                     info.startingWindowDelayMs);
    545         }
    546         if (info.bindApplicationDelayMs != -1) {
    547             builder.addTaggedData(APP_TRANSITION_BIND_APPLICATION_DELAY_MS,
    548                     info.bindApplicationDelayMs);
    549         }
    550         builder.addTaggedData(APP_TRANSITION_WINDOWS_DRAWN_DELAY_MS, info.windowsDrawnDelayMs);
    551         final ArtManagerInternal artManagerInternal = getArtManagerInternal();
    552         final PackageOptimizationInfo packageOptimizationInfo =
    553                 (artManagerInternal == null) || (info.launchedActivityAppRecordRequiredAbi == null)
    554                 ? PackageOptimizationInfo.createWithNoInfo()
    555                 : artManagerInternal.getPackageOptimizationInfo(
    556                         info.applicationInfo,
    557                         info.launchedActivityAppRecordRequiredAbi);
    558         builder.addTaggedData(PACKAGE_OPTIMIZATION_COMPILATION_REASON,
    559                 packageOptimizationInfo.getCompilationReason());
    560         builder.addTaggedData(PACKAGE_OPTIMIZATION_COMPILATION_FILTER,
    561                 packageOptimizationInfo.getCompilationFilter());
    562         mMetricsLogger.write(builder);
    563         StatsLog.write(
    564                 StatsLog.APP_START_OCCURRED,
    565                 info.applicationInfo.uid,
    566                 info.packageName,
    567                 convertAppStartTransitionType(info.type),
    568                 info.launchedActivityName,
    569                 info.launchedActivityLaunchedFromPackage,
    570                 isInstantApp,
    571                 currentTransitionDeviceUptime * 1000,
    572                 info.reason,
    573                 currentTransitionDelayMs,
    574                 info.startingWindowDelayMs,
    575                 info.bindApplicationDelayMs,
    576                 info.windowsDrawnDelayMs,
    577                 launchToken,
    578                 packageOptimizationInfo.getCompilationReason(),
    579                 packageOptimizationInfo.getCompilationFilter());
    580         logAppStartMemoryStateCapture(info);
    581     }
    582 
    583     private int convertAppStartTransitionType(int tronType) {
    584         if (tronType == TYPE_TRANSITION_COLD_LAUNCH) {
    585             return StatsLog.APP_START_OCCURRED__TYPE__COLD;
    586         }
    587         if (tronType == TYPE_TRANSITION_WARM_LAUNCH) {
    588             return StatsLog.APP_START_OCCURRED__TYPE__WARM;
    589         }
    590         if (tronType == TYPE_TRANSITION_HOT_LAUNCH) {
    591             return StatsLog.APP_START_OCCURRED__TYPE__HOT;
    592         }
    593         return StatsLog.APP_START_OCCURRED__TYPE__UNKNOWN;
    594      }
    595 
    596     void logAppTransitionReportedDrawn(ActivityRecord r, boolean restoredFromBundle) {
    597         final WindowingModeTransitionInfo info = mLastWindowingModeTransitionInfo.get(
    598                 r.getWindowingMode());
    599         if (info == null) {
    600             return;
    601         }
    602         final LogMaker builder = new LogMaker(APP_TRANSITION_REPORTED_DRAWN);
    603         builder.setPackageName(r.packageName);
    604         builder.addTaggedData(FIELD_CLASS_NAME, r.info.name);
    605         long startupTimeMs = SystemClock.uptimeMillis() - mLastTransitionStartTime;
    606         builder.addTaggedData(APP_TRANSITION_REPORTED_DRAWN_MS, startupTimeMs);
    607         builder.setType(restoredFromBundle
    608                 ? TYPE_TRANSITION_REPORTED_DRAWN_WITH_BUNDLE
    609                 : TYPE_TRANSITION_REPORTED_DRAWN_NO_BUNDLE);
    610         builder.addTaggedData(APP_TRANSITION_PROCESS_RUNNING,
    611                 info.currentTransitionProcessRunning ? 1 : 0);
    612         mMetricsLogger.write(builder);
    613         StatsLog.write(
    614                 StatsLog.APP_START_FULLY_DRAWN,
    615                 info.launchedActivity.appInfo.uid,
    616                 info.launchedActivity.packageName,
    617                 restoredFromBundle
    618                         ? StatsLog.APP_START_FULLY_DRAWN__TYPE__WITH_BUNDLE
    619                         : StatsLog.APP_START_FULLY_DRAWN__TYPE__WITHOUT_BUNDLE,
    620                 info.launchedActivity.info.name,
    621                 info.currentTransitionProcessRunning,
    622                 startupTimeMs);
    623     }
    624 
    625     private int getTransitionType(WindowingModeTransitionInfo info) {
    626         if (info.currentTransitionProcessRunning) {
    627             if (info.startResult == START_SUCCESS) {
    628                 return TYPE_TRANSITION_WARM_LAUNCH;
    629             } else if (info.startResult == START_TASK_TO_FRONT) {
    630                 return TYPE_TRANSITION_HOT_LAUNCH;
    631             }
    632         } else if (info.startResult == START_SUCCESS) {
    633             return TYPE_TRANSITION_COLD_LAUNCH;
    634         }
    635         return -1;
    636     }
    637 
    638     private void logAppStartMemoryStateCapture(WindowingModeTransitionInfoSnapshot info) {
    639         if (info.processRecord == null) {
    640             if (DEBUG_METRICS) Slog.i(TAG, "logAppStartMemoryStateCapture processRecord null");
    641             return;
    642         }
    643 
    644         final int pid = info.processRecord.pid;
    645         final int uid = info.applicationInfo.uid;
    646         final MemoryStat memoryStat = readMemoryStatFromFilesystem(uid, pid);
    647         if (memoryStat == null) {
    648             if (DEBUG_METRICS) Slog.i(TAG, "logAppStartMemoryStateCapture memoryStat null");
    649             return;
    650         }
    651 
    652         StatsLog.write(
    653                 StatsLog.APP_START_MEMORY_STATE_CAPTURED,
    654                 uid,
    655                 info.processName,
    656                 info.launchedActivityName,
    657                 memoryStat.pgfault,
    658                 memoryStat.pgmajfault,
    659                 memoryStat.rssInBytes,
    660                 memoryStat.cacheInBytes,
    661                 memoryStat.swapInBytes);
    662     }
    663 
    664     private ProcessRecord findProcessForActivity(ActivityRecord launchedActivity) {
    665         return launchedActivity != null
    666                 ? mSupervisor.mService.mProcessNames.get(launchedActivity.processName,
    667                         launchedActivity.appInfo.uid)
    668                 : null;
    669     }
    670 
    671     private ArtManagerInternal getArtManagerInternal() {
    672         if (mArtManagerInternal == null) {
    673             // Note that this may be null.
    674             // ArtManagerInternal is registered during PackageManagerService
    675             // initialization which happens after ActivityManagerService.
    676             mArtManagerInternal = LocalServices.getService(ArtManagerInternal.class);
    677         }
    678         return mArtManagerInternal;
    679     }
    680 }
    681