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Commit 3db13142 authored by Adam Bookatz's avatar Adam Bookatz
Browse files

UserInfo atom 

Adds a pulled statsd atom for UserInfo, containing each user's id, type,
and information about when it was last used.

We currently do not log the system user (user 0) because its information
is not currently interesting.

Test: make statsd_testdrive; statsd_testdrive <atom #>
Bug: 197545923
Bug: 218402402

Change-Id: Ic7187e5e093552e35c3628ea6c14ff1c2cd77613
parent e2046b06

services/core/java/com/android/server/pm/UserManagerService.java

+54 −0
Original line number Diff line number Diff line
@@ -36,6 +36,7 @@ import android.app.IActivityManager; 
import android.app.IStopUserCallback;

import android.app.KeyguardManager;

import android.app.PendingIntent;

import android.app.StatsManager;

import android.app.admin.DevicePolicyEventLogger;

import android.app.admin.DevicePolicyManagerInternal;

import android.content.BroadcastReceiver;
@@ -98,6 +99,7 @@ import android.util.Slog; 
import android.util.SparseArray;

import android.util.SparseBooleanArray;

import android.util.SparseIntArray;

import android.util.StatsEvent;

import android.util.TimeUtils;

import android.util.TypedValue;

import android.util.TypedXmlPullParser;
@@ -608,6 +610,8 @@ public class UserManagerService extends IUserManager.Stub { 
                if (mUms.mPm.isDeviceUpgrading()) {

                    mUms.cleanupPreCreatedUsers();

                }



                mUms.registerStatsCallbacks();

            }

        }
@@ -4279,6 +4283,56 @@ public class UserManagerService extends IUserManager.Stub { 
                        : FrameworkStatsLog.USER_LIFECYCLE_EVENT_OCCURRED__STATE__NONE);

    }



    /** Register callbacks for statsd pulled atoms. */

    private void registerStatsCallbacks() {

        final StatsManager statsManager = mContext.getSystemService(StatsManager.class);

        statsManager.setPullAtomCallback(

                FrameworkStatsLog.USER_INFO,

                null, // use default PullAtomMetadata values

                BackgroundThread.getExecutor(),

                this::onPullAtom);

    }



    /** Writes a UserInfo pulled atom for each user on the device. */

    private int onPullAtom(int atomTag, List<StatsEvent> data) {

        if (atomTag != FrameworkStatsLog.USER_INFO) {

            Slogf.e(LOG_TAG, "Unexpected atom tag: %d", atomTag);

            return android.app.StatsManager.PULL_SKIP;

        }

        final List<UserInfo> users = getUsersInternal(true, true, true);

        final int size = users.size();

        for (int idx = 0; idx < size; idx++) {

            final UserInfo user = users.get(idx);

            if (user.id == UserHandle.USER_SYSTEM) {

                // Skip user 0. It's not interesting. We already know it exists, is running, and (if

                // we know the device configuration) its userType.

                continue;

            }



            final int userTypeStandard = UserManager.getUserTypeForStatsd(user.userType);

            final String userTypeCustom = (userTypeStandard ==

                    FrameworkStatsLog.USER_LIFECYCLE_JOURNEY_REPORTED__USER_TYPE__TYPE_UNKNOWN) ?

                    user.userType : null;



            boolean isUserRunningUnlocked;

            synchronized (mUserStates) {

                isUserRunningUnlocked =

                        mUserStates.get(user.id, -1) == UserState.STATE_RUNNING_UNLOCKED;

            }



            data.add(FrameworkStatsLog.buildStatsEvent(FrameworkStatsLog.USER_INFO,

                    user.id,

                    userTypeStandard,

                    userTypeCustom,

                    user.flags,

                    user.creationTime,

                    user.lastLoggedInTime,

                    isUserRunningUnlocked

            ));

        }

        return android.app.StatsManager.PULL_SUCCESS;

    }



    @VisibleForTesting

    UserData putUserInfo(UserInfo userInfo) {

        final UserData userData = new UserData();