08:13 <discocaml> <sim642> Maybe the C stub that's being used isn't designed to work multithreaded?

10:22 <discocaml> <alyxshang> Quick question: May I post a project in an hour or two in here and you give me some feedback on the following points:

10:22 <discocaml> <alyxshang>

10:22 <discocaml> <alyxshang> - Idiomatic-ness.

10:22 <discocaml> <alyxshang> - Correctness.

10:22 <discocaml> <alyxshang> - Elegance

10:22 <discocaml> <alyxshang> I am kinda learning OCaml, coming from Rust and made a project to go _in medias res_.

10:23 <olle> Forum might be better suited.

10:24 <discocaml> <alyxshang> Not really too keen to make an account on the forum. I like Discord more, it's a bit more ad-hoc.

10:29 <olle> You can link your github account.

11:48 <discocaml> <alyxshang> I wanted to do that anyway. 🙂

11:48 <discocaml> <alyxshang> What's the difference between Opam and Dune?

11:48 <discocaml> <alyxshang> I'm not quite sure I understand.

11:48 <discocaml> <alyxshang> Like what problems do each of them solve?

11:50 <olle> Opam is a package system, Dune is a build system, IIRC.

11:51 <discocaml> <alyxshang> And what are Opam's switches?

12:08 <Inline> toolsets

12:08 <Inline> the default switch is the one which opam installs when you issue an opam init; opam update or so

12:09 <Inline> you can switch between different ocaml versions

12:09 <Inline> and those are called switches

12:10 <Inline> not sure how it ties with the package system, so when you switch to another ocaml compiler, i don't think your package set changes necessarily, but when you install new software the package set may change depending on the resolver...

12:11 <Inline> when the package depends on a certain version of the ocaml compiler your opam will install that along with that package

12:12 <Inline> and that will be a new switch right ?

12:17 <discocaml> <octachron> Switches are set of packages

12:19 <discocaml> <octachron> Nearly all switches will contain a compiler package

12:28 <discocaml> <inline_93060_96044> ooh

12:29 <discocaml> <inline_93060_96044> the bot copies my text from other irc channels to here

12:29 <discocaml> <inline_93060_96044> heh

12:30 <Inline> and vice versa too, it seems

12:42 <discocaml> <Kali> yes, it's a bridge so that discord and irc are able to communicate

12:43 <Inline> nice

13:02 <discocaml> <alyxshang> Much obliged for the explanation. ❤️

14:16 <luc4> Hello! I'm getting this segfault while making some changes to an open source app: https://pastebin.com/kT59x9B4. It started to happen when I introduced threads to make a sync call async. Anyone who can explain what this backtrace may mean?

14:20 <olle> luc4: if you wanna make debuggers happy, try to reproduce a smallest example?

14:23 <luc4> olle: I don't think I'll ever be able to do that. It happens when I try to make a sync function async. I suspect that simply moving it to a thread is wrong.

14:24 <olle> Still, it should never segfault.

14:30 <luc4> olle: I'm making changes to an open source app, and I'm changing the implementation of a couple of functions. Those functions are currently async and call callbacks when done. I'm doing pretty much the same, but to keep those async, I need to execute everything in a new thread. The problem is that, doing this, also the callback is called in that new thread. Do you think I have a way to execute the callback in the calling thread?

14:31 <olle> luc4: I never used OCaml 5, so no idea :)

14:31 <luc4> olle: this is still ocaml4

14:32 <olle> Oh

14:33 <olle> So you're forking, luc4 ?

14:35 <olle> Wait no

14:35 <olle> Ah whatever

20:37 <discocaml> <alyxshang> Apologies it took a bit longer than I had promised but I made a forum post. 🙂

22:19 <discocaml> <deepspacejohn> I don't see it https://discuss.ocaml.org/

22:28 <discocaml> <Kali> i think alyxshang meant https://ptb.discord.com/channels/436568060288172042/1330274812630798356

22:29 <discocaml> <deepspacejohn> ooh right. I forgot that existed 🙃