Hacking Coroutines into C

Cooperative multithreading via setjmp and longjmp has been around in C since the 80s at least.

I’m not sure this is so much hacking as an accepted technique from the old-old days which has somewhat fallen out of favour, especially as C is falling a little outside of the mainstream these days.

Perhaps it’s almost becoming lost knowledge :)

This isn't using setjmp/longjmp

It's using Simon Tatham's method based on Duff's device (https://www.chiark.greenend.org.uk/~sgtatham/coroutines.html)

Sure, I guess I just wanted to point out that regardless of method, people have been building these sorts of facilities in C for a very long time.

It doesn’t lessen the achievement of course, but it amuses me an in “everything old is new again” kinda way.

"everything old is new again" is so true. I see it across IT all the time, heh.