34 points | by sourdecor 12 hours ago
6 comments
This looks kind of outdated, especially since we are on C++23 as latest approved standard, and co-routines would be a better approach since C++20.
Also how is the supposed Swift rewrite going on?
You're in luck: https://github.com/apple/foundationdb/blob/main/design/corou...
Just because coroutines exist doesn’t mean everything should use them for concurrency.
Why would it be better? It’s pretty easy to set up threads in general.
Threads use more system resources than coroutines so it can be a big deal when you can potentially have thousands of them running.
A previous discussion: https://news.ycombinator.com/item?id=46191763
Thanks! Macroexpanded:
Flow: Actor-based language for C++, used by FoundationDB - https://news.ycombinator.com/item?id=46191763 - Dec 2025 (53 comments)
This looks kind of outdated, especially since we are on C++23 as latest approved standard, and co-routines would be a better approach since C++20.
Also how is the supposed Swift rewrite going on?
You're in luck: https://github.com/apple/foundationdb/blob/main/design/corou...
Just because coroutines exist doesn’t mean everything should use them for concurrency.
Why would it be better? It’s pretty easy to set up threads in general.
Threads use more system resources than coroutines so it can be a big deal when you can potentially have thousands of them running.
A previous discussion: https://news.ycombinator.com/item?id=46191763
Thanks! Macroexpanded:
Flow: Actor-based language for C++, used by FoundationDB - https://news.ycombinator.com/item?id=46191763 - Dec 2025 (53 comments)