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 
H(Looper looper)107         public H(Looper looper) {
108             super(looper);
109         }
110 
111         @Override
handleMessage(Message msg)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 
WindowingModeTransitionInfoSnapshot(WindowingModeTransitionInfo info)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 
ActivityMetricsLogger(ActivityStackSupervisor supervisor, Context context, Looper looper)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 
logWindowState()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      */
notifyActivityLaunching()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      */
notifyActivityLaunched(int resultCode, ActivityRecord launchedActivity)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 
hasStartedActivity(ProcessRecord record, ActivityRecord launchedActivity)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      */
notifyActivityLaunched(int resultCode, ActivityRecord launchedActivity, boolean processRunning, boolean processSwitch)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      */
isLoggableResultCode(int resultCode)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      */
notifyWindowsDrawn(int windowingMode, long timestamp)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      */
notifyStartingWindowDrawn(int windowingMode, long timestamp)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      */
notifyTransitionStarting(SparseIntArray windowingModeToReason, long timestamp)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      */
notifyVisibilityChanged(ActivityRecord activityRecord)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 
checkVisibility(TaskRecord t, ActivityRecord r)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      */
notifyBindApplication(ProcessRecord app)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 
allWindowsDrawn()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 
isAnyTransitionActive()454     private boolean isAnyTransitionActive() {
455         return mCurrentTransitionStartTime != INVALID_START_TIME
456                 && mWindowingModeTransitionInfo.size() > 0;
457     }
458 
reset(boolean abort)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 
calculateCurrentDelay()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 
calculateDelay(long timestamp)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 
logAppTransitionCancel(WindowingModeTransitionInfo info)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 
logAppTransitionMultiEvents()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.
logAppTransition(int currentTransitionDeviceUptime, int currentTransitionDelayMs, WindowingModeTransitionInfoSnapshot info)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 
convertAppStartTransitionType(int tronType)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 
logAppTransitionReportedDrawn(ActivityRecord r, boolean restoredFromBundle)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 
getTransitionType(WindowingModeTransitionInfo info)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 
logAppStartMemoryStateCapture(WindowingModeTransitionInfoSnapshot info)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 
findProcessForActivity(ActivityRecord launchedActivity)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 
getArtManagerInternal()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