Learning Rust and Lemmy

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Welcome

A collaborative space for people to work together on learning Rust, learning about the Lemmy code base, discussing whatever confusions or difficulties we're having in these endeavours, and solving problems, including, hopefully, some contributions back to the Lemmy code base.

Rules TL;DR: Be nice, constructive, and focus on learning and working together on understanding Rust and Lemmy.

Running Projects

Rust for Lemmings Reading Club (portal)
Rust beginners challenges (portal)
Heroically Helpful Comments

Policies and Purposes

This is a place to learn and work together.
Questions and curiosity is welcome and encouraged.
This isn't a technical support community. Those with technical knowledge and experienced aren't obliged to help, though such is very welcome. This is closer to a library of study groups than stackoverflow. Though, forming a repository of useful information would be a good side effect.
This isn't an issue tracker for Lemmy (or Rust) or a place for suggestions. Instead, it's where the nature of an issue, what possible solutions might exist and how they could be or were implemented can be discussed, or, where the means by which a particular suggestion could be implemented is discussed.

Rules

Lemmy.ml rule 2 applies strongly: "Be respectful, even when disagreeing. Everyone should feel welcome" (see Dessalines's post). This is a constructive space.
Don't demean, intimidate or do anything that isn't constructive and encouraging to anyone trying to learn or understand. People should feel free to ask questions, be curious, and fill their gaps knowledge and understanding.
Posts and comments should be (more or less) within scope (on which see Policies and Purposes above).
See the Lemmy Code of Conduct
Where applicable, rules should be interpreted in light of the Policies and Purposes.

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founded 7 months ago

MODERATORS

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Looking to learn Rust? Curious about Rust? Feel free to ask me (feddit.dk)

submitted 5 months ago by [email protected] to c/[email protected]

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Hey!

I'm a professional software engineer with several years of experience using Rust. Unfortunately I don't really have the time to contribute to Lemmy directly myself, but I love teaching other people Rust so if:

You are curious about Rust and why you should even learn it
You are trying to learn Rust but maybe having a hard time
You are wondering where to start
You ran into some specific issue

... or anything to do with Rust really, then feel free to ask in the comments or shoot me a PM 🙂

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[–] BehindTheBarrier 2 points 5 months ago* (last edited 5 months ago)

Ah, so I'm actually cheating with the pointer reading, i'm actually making a clone of Arc without using the clone()... And then dropping it to kill the data. I had assumed it just gave me that object so I could use it. I saw other double buffer implementations (aka write one place, read from another palce, and then swap them safely) use arrays with double values, but I wasn't much of a fan of that. There is some other ideas of lock free swapping, using index and options, but it seemed less clean. So RwLock is simplest.

And yeah, if I wanted a simple blog, single files or const strings would do. But that is boring! I mentioned in the other reply, but it's purely for fun and learning. And then it needs all the bells and whistles. Writing html is awful, so I write markdown files and use a crate to convert it to html, and along the way replace image links with lazy loading versions that don't load until scrolled down to. Why, because I can! Now it just loads from files but if I bother later i'll cache them in memory and add file watching to replace the cached version. Aka an idea of the issue here.