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RichFelker's profile
Rich Felker
Rich Felker
Rich Felker
@RichFelker

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Rich Felker

@RichFelker

Yeah, I do @musllibc, FOSS & infosec stuff. But now is not the time for a mostly-/only-tech Twitter feed.

musl-libc.org
Joined March 2014

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    1. bounded model shaker‏ @das_kube Mar 29
      Replying to @RichFelker @bofh453

      Or you can write rust with nostd, and no allocator (bring your own). But what would you do anyway if you `vec.push(x)` and somehow there isn't enough ram? How would you signal the error in a way that makes sense to the caller of `push`?

      2 replies 0 retweets 0 likes
    2. CopperheadOS‏ @CopperheadOS Mar 30
      Replying to @das_kube @RichFelker @bofh453

      The push method could return `Ok(())` when it succeeds and `Err(x)` when it fails. Since `Result<T, U>` is marked #[must_use], it forces the caller to handle the error case. Rust as a language is well-suited to writing low-level, robust code. The non-core stdlib is the issue.

      3 replies 1 retweet 3 likes
    3. bounded model shaker‏ @das_kube Mar 30
      Replying to @CopperheadOS @RichFelker @bofh453

      That would make 99% of application-level code return `Result`, which is crazy for a general purpose language. If you want to write low level code, you'd allocate manually at the beginning and you wouldn't use resizable vectors/hashtables anyway, right?

      1 reply 0 retweets 0 likes
    4. CopperheadOS‏ @CopperheadOS Mar 30
      Replying to @das_kube @RichFelker @bofh453

      > If you want to write low level code, you'd allocate manually at the beginning and you wouldn't use resizable vectors/hashtables anyway, right? No, not at all. Dynamic allocation for dynamic requests is fine if you have a way to make only that specific request fail.

      2 replies 0 retweets 1 like
    5. bounded model shaker‏ @das_kube Mar 30
      Replying to @CopperheadOS @RichFelker @bofh453

      fair enough, but then it's reasonable to use custom structures, I suppose. (also, on linux, this whole discussion is funny because OOM for a process doesn't exist in practice, the OS kills you instead ^^)

      1 reply 0 retweets 0 likes
    6. CopperheadOS‏ @CopperheadOS Mar 30
      Replying to @das_kube @RichFelker @bofh453

      vm.overcommit_memory = 0 exists on Linux, and who said we're just talking about using Rust on Linux?

      1 reply 0 retweets 0 likes
    7. bounded model shaker‏ @das_kube Mar 30
      Replying to @CopperheadOS @RichFelker @bofh453

      No one, I'm just saying.

      1 reply 0 retweets 0 likes
    8. CopperheadOS‏ @CopperheadOS Mar 30
      Replying to @das_kube @RichFelker @bofh453

      Every third party library needs to disable the Rust standard library if they want to be robust and portable. Most don't do that, so they aren't usable where these things matter. Rust's standard libraries don't have any form of allocation, collections or IO not depending on this.

      1 reply 0 retweets 0 likes
    9. CopperheadOS‏ @CopperheadOS Mar 30
      Replying to @CopperheadOS @das_kube and

      Rust as a language is great for writing software like a kernel or a robust / portable library. However, you don't have 95% of the standard libraries and third party library ecosystem in those niches. That's a pretty serious problem for a language targeted at low-level usage.

      2 replies 0 retweets 1 like
    10. CopperheadOS‏ @CopperheadOS Mar 30
      Replying to @CopperheadOS @das_kube and

      Since portable third party libraries can't use the standard library, that means the third party library ecosystem often needs to reinvent simple things that should be standard because they can't reuse that code. It's a mess.

      3 replies 0 retweets 2 likes
      Rich Felker‏ @RichFelker Mar 30
      Replying to @CopperheadOS @das_kube @bofh453

      That's roughly how the Mozilla folks treated C anyway (see: NSPR) so it's not surprising...

      8:08 AM - 30 Mar 2018
      0 replies 0 retweets 0 likes

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