How to get rid of the channels while being thread-safe?

[dgrr]

Yes, that's quite a challenge. I don't want to use channels, but how do you keep being thread-safe then?
The main problem is that you can't serialize 2 requests at the same time, because one might modify the table and the other should apply those changes...

I'll need to investigate how nghttp2 does those kind of things.

[dgrr]

It's called one thread. If we have multiple threads, looks like there's no way to get rid of channels.