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3 posts total
rain 🌦️

New blog post! Beyond Ctrl-C: The dark corners of Unix signal handling.

The post is an introduction to signals and how to manage them effectively with async Rust. It's a written version of my talk at RustConf 2023, heavily edited for presentation as a blog post.

Hope you enjoy reading it as much as I enjoyed writing it!

sunshowers.io/posts/beyond-ctr

3 September at 18:39 | Open on hachyderm.io
rain 🌦️
Paul Jewell

@rain
Thanks for sharing! Very interesting read

3 September at 19:08 | Open on hachyderm.io
jyn

@rain

The functions okay to call in signal handlers are called async-signal-safe functions. The term is a bit confusing! “async” here has nothing to do with async Rust. (In many ways it’s the opposite of async Rust, because the defining characteristic of async Rust is that you cannot just be interrupted or preempted at any time. You can only be interrupted at await points.)

in some ways i wish rust (and javascript before it) had settled on "cooperative multi-tasking" as the name to call it

"async" is not a good intuition because so many things can be asynchronous idk. "multi-tasking" even has a nice task {} abbreviation you can use for the blocks that i think semantically describes what the closure is doing better

@rain

The functions okay to call in signal handlers are called async-signal-safe functions. The term is a bit confusing! “async” here has nothing to do with async Rust. (In many ways it’s the opposite of async Rust, because the defining characteristic of async Rust is that you cannot just be interrupted or preempted at any time. You can only be interrupted at await points.)

4 September at 2:47 | Open on tech.lgbt
rain 🌦️

Something that came up in our work chat today is that a lot of the Linux kernel maintainers' insecurity comes from a lack of CI and testing infra.

I think projects should make it possible to write code with less fear

30 August at 19:41 | Open on hachyderm.io
Fi, infosec-aspected

@rain

....mb this is a naive question but why haven't they set that up for at least their -parts- of the kernel space?

30 August at 19:43 | Open on infosec.exchange
rain 🌦️

I'd just like to interject for a moment. What you're referring to as Linux, is in fact, systemd/Linux, or as I've recently taken to calling it, systemd plus Linux. Linux is not an operating system unto itself, but rather another free component of a fully functioning systemd system. Many computer users run a modified version of the systemd system every day, without realizing it. Through a peculiar turn of events, the version of systemd which is widely used today is often called “Linux,” and ma

14 February at 17:37 | Open on hachyderm.io
mcc
David - Forking Mad

@rain@hachyderm.io makes me think of everyone on here who refers to this network as Mastodon, rather than the Fediverse 🤣

28 February at 19:05 | Open on ibe.social
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