Rust developers are frustrated with Linux C kernel developers. - eviltoast
  • davidagain@lemmy.world
    link
    fedilink
    English
    arrow-up
    2
    arrow-down
    2
    ·
    2 months ago

    It looks to me like there’s a bit of deadline ignoring going on, but even if it really is at heart reluctance to learn rust, aren’t a lot of linux developers volunteers? Getting cross that a bunch of volunteers don’t want to commit to permanently supporting rust (with its famously steep learning curve and famously hard to please borrow checker) seems a bit entitled to me.

    “You there! Volunteers! Get on with doing exactly what I want exactly the way I want it and before you release your next version. Stop resisting the inevitable rise of your new priority: doing things our way. It’s better, so you’re wrong. Quickly now, stop resisting.”

    • gedhrel@lemmy.world
      link
      fedilink
      English
      arrow-up
      3
      arrow-down
      1
      ·
      2 months ago

      No, the vast majority of linux developers are professionally employed to do it.

      • davidagain@lemmy.world
        link
        fedilink
        English
        arrow-up
        1
        ·
        2 months ago

        Ah OK, yes. Then “Hey, Intel, Red Hat, Linaro, IBM and 500 other companies and a bunch of other people, You have to make this massive C project rust compliant otherwise you’re tech luddites.” It’s still entitled.

        • gedhrel@lemmy.world
          link
          fedilink
          English
          arrow-up
          1
          ·
          2 months ago

          What you describe would, indeed, be risible. Fortunately it’s merely histrionic twaddle.

          • davidagain@lemmy.world
            link
            fedilink
            English
            arrow-up
            1
            ·
            2 months ago

            Personally I always think it’s weird when people expect open source authors to implement their preferences for them. Just stop acting like your priorities are inevitable. They’re not. Why should everyone else drop everything and do it your way, even if it is in your view obviously better?

            • gedhrel@lemmy.world
              link
              fedilink
              English
              arrow-up
              1
              ·
              2 months ago

              That seems like a non sequiteur. Did you watch the video? Did you hear what the presenter was asking for? Technical feedback on the API semantics they were describing. A heads-up if breaking changes to those APIs were about to land, so they can update bindings. They were bending over backwards to be accommodating. None of this is the entitled behaviour you describe.

              • davidagain@lemmy.world
                link
                fedilink
                English
                arrow-up
                1
                ·
                2 months ago

                I watched the video. The presenter is explaining how it’s really helpful to encode the semantics in the type system and the co presenter was talking about how algebraic data types are great for this kind of stuff. They wanted the C guys to agree a semantics for some file system api stuff, but some of the C folks were very reluctant to commit to a semantics that they weren’t convinced covered all the edge cases and that was going to be encoded using concepts they’re unfamiliar with and syntax that looks alien to them.

                The whole “but look at all the guarantees this gives you, see how much effort and worry the compiler now handles for you, and how while classes of bugs simply cannot happen!” thing is stuff people have been saying to the C programming community for well over three decades. It didn’t wash with them then, why would it wash now?

                Pascal advocates said “look how the compiler does array bounds checking for you, you need never segfault again” and the C programmers said “yeah, your program quits with a pretty and polite message about how it ran out of space and mine segfaults, but mine runs twice as fast as yours and your syntax is stupid, I’m sticking query my curly braces.”

                Lisp programmers said “macros? Those aren’t macros. You have no idea what power real macros have. Imagine if your code could edit itself!” and the C programmers said “that meant parens would give me RSI and my code runs five times as fast as yours.”

                Pure functional programmers have been extolling the virtues of algebraic data types (and immutability by default, and automatic memory management) for decades, but the C community has never wanted to know, why would they now?

                The C community heard all these ideas, and all these lovely guarantees, and has repeatedly said “See those guard rails at the bowling alley? I don’t use them. They’re for people who aren’t good at bowling. If you want a big guiding abstraction that really works in practice, here it is: everything is just a stream of bytes. Simple, effective and FAST.”

                Expecting compiler guarantees and memory safety to win round a C programmer or someone that’s into dynamic types is like expecting a motorbike rider to trade their bike for a pickup truck on the grounds that it’s so roomy and robust. They’ve never wanted that. It’s a massive, massive culture clash that the rust folks don’t see at all, because they know they’re right, they’ve seen the light, they know the truth, and it’s fast and fast enough for full on systems programming so they’re in the same club as the C folks, but the C folks didn’t want to be saved from C because they never weighed the risks as high as other folks did.

                It reminds me of two Republican women whose children were badly traumatised in a genuine active shooter crisis at their school, and they realised that they’d been downplaying it and that actually this was a really serious issue that needs fixing, but they were very surprised, baffled and hurt that their Republican friends, councillors and law makers didn’t realise like they did how important this stuff was and continued to downplay it as if the children’s trauma was somehow less important than their friends political beliefs.

                Summary: rust folks are very late indeed to the “aren’t compiler enforced guarantees great” party, and these C folks have been turning down invitations since forever. They’re going at it with missionary zeal to the very community that ignored 100% of the previous missionaries, and are surprised that they’re getting so much push back and resistance to what they feel so inevitably has to happen in the end and so clearly the Right Thing.

                C is where the people who love the speed and freedom of manual memory management hang out. Why would anyone expect a 35 minute talk to change all of that?