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Need Information about UE4s threads & thread safety

In my current project i want to use a third-party library (Lua) for modding-capabilities, for ai, actors aswell as ui widgets,

The problem i have is : Accessing a Lua state is not thread-safe, it should be accessed by only one thread at any given time (that includes reading and writing). I only need it for gameplay logic/ai logic/behavior trees and UI.

I only know that in Unreal 4 rendering is done in a separate thread (which is something my lua state wouldn't come in touch with at all so no problem there) and i read that physics area also done on a separate thread, but i'm unsure about the rest.

Now the question : is all the game logic, like all the tick-events/tick-functions, aka
-player controller lotic,
-ai controller logic,
-player controller logic,
-character/actor logic
-animation logic,
-the ai behavior tree logic and
-UMG-widget logic
on the same thread in Unreal 4?

If not, is there any page that shows what threads Unreal 4 has for what engine feature so i can make some proper adjustments?

The only helpful answer i found so far was this topic https://forums.unrealengine.com/show...nd-Job-Threads but they didn't seem to be 100% sure and before i stumble into errors or make unneccessary adjustments i want to make sure.

Product Version: UE 4.15
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asked Mar 27 '17 at 10:44 AM in Using UE4

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