←back to thread

Concurrency in Haskell: Fast, Simple, Correct

(bitbashing.io)
193 points ingve | 1 comments | 14 Apr 25 10:47 UTC | HN request time: 0.205s | source
Show context
FuckButtons ◴[17 Apr 25 03:24 UTC] No.43712793[source]▶
I thought it was a bit odd that the author claims there’s no mutexes in sight, the TVar is effectively a mutex guard unless I’m misunderstanding this? (I’ve written exactly 0 lines of Haskel). Or is the claim that the lack of ceremony and accidental complexity around threading is the real win for concurrency here?
replies(6): >>43713040 #>>43713043 #>>43713044 #>>43713127 #>>43714265 #>>43714335 #
1. pkjens04 ◴[17 Apr 25 04:11 UTC] No.43713043[source]▶
A mutex locks the thread, which doesn't happen with TVar. For mutexes TMVar would be used.