jamesmunns

8 ms·

31.
by jamesmunns 2y ago
I was really hoping for a more insightful contrast of the two. I'm probably biased by reading a lot about Rust, but this seemed to be another article covering the basics of "what is userspace scheduling" and seemingly ending
32.
by jamesmunns 2y ago
Yeah, having all of your messaging in one place is amazing. Especially since they support a decent long tail of DM services as well.
33.
by jamesmunns 2y ago
I really like Beeper, and congrats to them for getting acquired, but my first reaction is "aw damn how long until the parts I love about Beeper get incredible journey'd away". The new android app is really good, the desktop a
34.
by jamesmunns 3y ago
In markdown (or at least some flavors) that is the typical way of making a hyperlink actually a link. It's equivalent to [link](link) in markdown.
35.
by jamesmunns 3y ago
Thanks! I was AFK and didn't have a grep (or a shell) handy on my phone.
36.
by jamesmunns 3y ago
Same, tho it'd be interesting to see if this behavior holds if the file ends without a trailing newline and your match is on the final newline-less line.
37.
by jamesmunns 3y ago
ELI5: We have a shared chunk of memory, with one sender, and one receiver. We want this to work without an allocator. Instead of pushing and popping one byte/thing at a time (inefficient, a lot of overhead), we want to have the ability
38.
by jamesmunns 3y ago
I meant 2019, and there weren't any materials that I would consider as clear and well defined as Mara's linked docs explaining the different orderings used by C, C++, and Rust (Relaxed, Release, Acquire, AcqRel, and SeqCst). I&#x2
39.
by jamesmunns 3y ago
Back when this post was written, I would have agreed with you. But Mara's book makes a good case for this: https://marabos.nl/atomics/memory-ordering.html#common-misco... More importantly, when reading code, S
40.
by jamesmunns 3y ago
Yep, good catch! That's a whoops in my explanation. I don't work at FS any more, so I'm not sure I could PR that change, but you're definitely right :)
41.
by jamesmunns 3y ago
Back then, there weren't as good references for explaining atomic ordering, and the blog post had gotten long enough. Mentioning SeqCst was a bit of a cop out, though both Andrea and I didn't end up using SeqCst past the inital im
42.
by jamesmunns 3y ago
I am not sure! Most of the data structures I design are for embedded systems without allocators. On the desktop, I mostly defer to others. I've used tokio's broadcast channel quite a bit before, but it is also bounded. After talki
43.
by jamesmunns 3y ago
As far as I know, it hasn't been formally verified. Andrea Lattuada ( https://andrea.lattuada.me/ ) is more likely to have done work in his implementation of the algorithm than I did on mine. I have run the testing with
44.
by jamesmunns 3y ago
Oh hey, one of the authors of this post here (James), happy to answer any questions. This post has been discussed here a couple times, but AMA :) edit, the most commented version of this post was the original: https://news.ycombi
45.
by jamesmunns 3y ago
Yeah, just adding, in Rust, there's three main levels: 1. no_std (like no libc + no malloc in C) 2. no_std + alloc (like no libc + malloc in C) 3. std (like a full libc + malloc in C) The difference between 1 + 2 is like three lines. T
46.
by jamesmunns 3y ago
The FAA has authority to ground the entire fleet. It probably won't go that far, but it does have the necessary authority to enforce a pretty huge "or else".
47.
by jamesmunns 3y ago
Low digitalization isn't just payment - it's also needing to fill in paper forms, or making in-person visits to government and business offices. I've been living in Germany for about a decade, and it is still behind in many o
48.
by jamesmunns 3y ago
At least in Rust, we have `cargo-call-stack` [0] for static analysis, but "worst case stack usage" can be challenging to measure, if you have interrupts (including nested ones at different prios so you have to add them together!),
49.
by jamesmunns 3y ago
You can't generally change the direction the stack moves, at least on targets like Cortex-M. Maybe in ASM it'd be feasible to work around, but getting LLVM to do this isn't anything I've ever seen. The "walk off the
50.
by jamesmunns 3y ago
Thanks! I'm glad you enjoyed it :)
51.
by jamesmunns 3y ago
I am for a couple years now. I do consulting work [1] around Rust/Embedded Systems/Systems Engineering, usually helping teams that are either kicking off a project (so helping with planning, scoping, and backfilling knowledge gaps
52.
by jamesmunns 3y ago
The rest of the quote was: > ...you'll only be pretending it doesn't exist Which is what I was providing evidence of that Go does. It removes coloring to the user by handling it under the hood. The linked article calls this &qu
53.
by jamesmunns 3y ago
This post discusses the issues: https://blog.djha.skin/blog/the-down-sides-of-gos-goroutines... From this recent discussion: https://news.ycombinator.com/item?id=38821840 It's not to say that Go i
54.
by jamesmunns 3y ago
Technology Connections recently did a video[0] on the clapper, which went over quite a bit of the tech and history of the clapper, if you're looking for a video option. [0]: https://youtu.be/TBPVJtGBf8Y?si=XHbDwcO2LUm9e
55.
by jamesmunns 3y ago
The title is a little underwhelming, but this is a very good discussion of potential designs around async streams/iterators in Rust. Definitely worth a read.
56.
by jamesmunns 3y ago
Text writeup is on the authors website, in case you prefer that over a video: https://www.smbaker.com/the-mini-08-8008-single-board-comput...
57.
by jamesmunns 3y ago
@dang this looks like a fairly editorialized take on the title: Original: "EuroRust 2023 Reflections: What's a Conference For?" Current: "A bitter commentary on EuroRust conf"
58.
by jamesmunns 3y ago
I don't think that filter would like my post at all, if it considers "is" as part of "to be".
59.
by jamesmunns 3y ago
Hey all, this is my somewhat silly-titled blog post about how we model interrupt handlers as threads in embedded rust, and how that allows us to leverage the same Sync and Send compile time checks to ensure interrupt-safety of data. Happy t
60.
Interrupts Is Threads(onevariable.com)
2 points by jamesmunns 3y ago|4 comments

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