vklquevs

I like userdata because the connection takes ownership of it exactly while it is connected, so you can do this and `UserData` doesn't need to be `Clone`: ``` enum MaybeConnection...

It would certainly be nice for symmetry, although at the moment I'm just giving it an mpsc::channel so it's not critical. I did have a look at how much work...

Yes, if I've read it correctly then that would still work well. Even if I'm wrong (it's sadly been a while since I last looked at my project), it does...

For what it's worth, I think a construct that implicitly repeats a block of code (unless you tell it not to) is less intuitive than a construct that executes a...