[MatrixSDK] makes sure to release FFI objects from RustMatrixRoom by calling close

appnav/src/main/kotlin/io/element/android/appnav/RoomFlowNode.kt

@@ -71,6 +71,7 @@ class RoomFlowNode @AssistedInject constructor(
             },
             onDestroy = {
                 Timber.v("OnDestroy")
+                inputs.room.close()
                 plugins<LifecycleCallback>().forEach { it.onFlowReleased(inputs.room) }
             }
         )

libraries/matrix/api/src/main/kotlin/io/element/android/libraries/matrix/api/room/MatrixRoom.kt

@@ -20,8 +20,9 @@ import io.element.android.libraries.matrix.api.core.EventId
 import io.element.android.libraries.matrix.api.core.RoomId
 import io.element.android.libraries.matrix.api.timeline.MatrixTimeline
 import kotlinx.coroutines.flow.Flow
+import java.io.Closeable
 
-interface MatrixRoom {
+interface MatrixRoom: Closeable {
     val roomId: RoomId
     val name: String?
     val bestName: String

libraries/matrix/impl/src/main/kotlin/io/element/android/libraries/matrix/impl/room/RustMatrixRoom.kt

@@ -17,11 +17,11 @@
 package io.element.android.libraries.matrix.impl.room
 
 import io.element.android.libraries.core.coroutine.CoroutineDispatchers
-import io.element.android.libraries.matrix.impl.timeline.RustMatrixTimeline
 import io.element.android.libraries.matrix.api.core.EventId
 import io.element.android.libraries.matrix.api.core.RoomId
 import io.element.android.libraries.matrix.api.room.MatrixRoom
 import io.element.android.libraries.matrix.api.timeline.MatrixTimeline
+import io.element.android.libraries.matrix.impl.timeline.RustMatrixTimeline
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.filter
@@ -62,6 +62,10 @@ class RustMatrixRoom(
             coroutineDispatchers = coroutineDispatchers
         )
     }
+    override fun close() {
+        innerRoom.destroy()
+        slidingSyncRoom.destroy()
+    }
 
     override val roomId = RoomId(innerRoom.id())
 

libraries/matrix/test/src/main/kotlin/io/element/android/libraries/matrix/test/room/FakeMatrixRoom.kt

@@ -87,4 +87,6 @@ class FakeMatrixRoom(
         delay(100)
         return Result.success(Unit)
     }
+
+    override fun close() = Unit
 }