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Commit 85c8c448 authored by Yasin Kilicdere's avatar Yasin Kilicdere
Browse files

Make UserTrackerImpl.userInfo thread-safe. 

The userInfo property was not synchronized, which was causing crashes
in some cases. In the previous implementation userProfiles could change
and not contain the userId, throwing NoSuchElementException. This CL
makes the property thread-safe.

Bug: 363466988
Change-Id: Ibc5f9ea8d50f729e9d24b4647999350b4ea577a4
Test: None
Flag: EXEMPT bugfix
parent db99fede

packages/SystemUI/src/com/android/systemui/settings/UserTrackerImpl.kt

+3 −5
Original line number Diff line number Diff line
@@ -103,11 +103,8 @@ internal constructor( 
    override val userContentResolver: ContentResolver

        get() = userContext.contentResolver



    override val userInfo: UserInfo

        get() {

            val user = userId

            return userProfiles.first { it.id == user }

        }

    override var userInfo: UserInfo by SynchronizedDelegate(UserInfo(context.userId, "", 0))

        protected set



    /**

     * Returns a [List<UserInfo>] of all profiles associated with the current user.
@@ -187,6 +184,7 @@ internal constructor( 
            userHandle = handle

            userContext = ctx

            userProfiles = profiles.map { UserInfo(it) }

            userInfo = profiles.first { it.id == user }

        }

        return ctx to profiles

    }

packages/SystemUI/tests/src/com/android/systemui/settings/UserTrackerImplReceiveTest.kt

+15 −15
Original line number Diff line number Diff line
@@ -79,21 +79,6 @@ class UserTrackerImplReceiveTest : SysuiTestCase() { 


    @Test

    fun callsCallbackAndUpdatesProfilesWhenAnIntentReceived() = runTest {

        tracker =

            UserTrackerImpl(

                context,

                { fakeFeatures },

                userManager,

                iActivityManager,

                dumpManager,

                this,

                testDispatcher,

                handler

            )

        tracker.initialize(0)

        tracker.addCallback(callback, executor)

        val profileID = tracker.userId + 10



        `when`(userManager.getProfiles(anyInt())).thenAnswer { invocation ->

            val id = invocation.getArgument<Int>(0)

            val info = UserInfo(id, "", UserInfo.FLAG_FULL)
@@ -109,6 +94,21 @@ class UserTrackerImplReceiveTest : SysuiTestCase() { 
            listOf(info, infoProfile)

        }



        tracker =

            UserTrackerImpl(

                context,

                { fakeFeatures },

                userManager,

                iActivityManager,

                dumpManager,

                this,

                testDispatcher,

                handler

            )

        tracker.initialize(0)

        tracker.addCallback(callback, executor)

        val profileID = tracker.userId + 10



        tracker.onReceive(context, Intent(intentAction))



        verify(callback, times(0)).onUserChanged(anyInt(), any())