A few days ago I posted an ooc quine. But while browing HackerNews, I found an even shorter one. The shortest!

Here it is, in its full glory

Can’t see anything? That’s an empty file. It will compile and run just fine. ooc doesn’t require a main function - you can just shove code in there that will run at the program’s initialization. If there’s none, no big deal! It’ll just not run anything.

Welcome back and thanks for joining us for the reads notes… the thirteenth installment of our series on ELF files, what they are, what they can do, what does the dynamic linker do to them, and how can we do it ourselves.

I’ve been pretty successfully avoiding talking about TLS so far (no, not that one) but I guess we’ve reached a point where it cannot be delayed any further, so.

The front end of the pool

I’ve been interested in reactive JavaScript for a while. At memoways, we strive to build snappy user interfaces for clients who like to interact with their data with as little latency as possible.

In the past two years, I learned front-end development on-the-fly, as the needs of the clients required it. Two years ago, I was still using jQuery. Then, I discovered space-pen thanks to my colleague Nicolas. It was nice to have proper ‘view’ objects, and use jQuery’s event system to have messages propagate throughout a hierarchy.

Before we move on to parsing more of our raw packets, I want to take some time to improve our error handling strategy.

Currently, the ersatz codebase contains a mix of Result<T, E>, and some methods that panic, like unwrap() and expect().

We also have a custom Error enum that lets us return rawsock errors, IO errors, or Win32 errors:

pub enum Error { Rawsock(rawsock::Error), IO(std::io::Error), Win32(u32), }

rock 0.9.5 is out! It’s the meanest, slimmest, baddest rock release yet.

To update, run git pull && make rescue as usual. To install from scratch, clone the repo, cd into it, and run make rescue from there - it’ll download the latest bootstrap, compile itself from C, then recompile itself from ooc.

Running rock -V should print this happy little version line:

Today I decided to release sam 0.2.0. There are only a handful of new features in there but it’s still releaseworthy! See the previous sam announcement for more information on the tool itself.

Source path and lib folders

Let’s take a look at what sam tells us when launching it.

sam version 0.2.0 Usage: sam [update|get|status|promote] Commands * update: update sam's grimoir of formulas * get [USEFILE]: clone and/or pull all dependencies * status [USEFILE]: display short git status of all dependencies * promote [USEFILE]: replace read-only github url with a read-write one for given use file * clone [--no-deps] [REPONAME]: clone a repository by its formula name Note: All USEFILE arguments are optional. By default, the first .use file of the current directory is used Copyleft 2013 Amos Wenger aka @nddrylliog

Hey all, thanks for checking in!

After much soul searching, I have arrived to the following conclusion:

• Teaching folks about stuff is my jam.

I’ve been writing multiple articles that sort of read like course material, if there was no dress code, maybe?

In 2013, I organized a 1st year Computer Science student project. Instead of making them implement “control tower software” for a fictional airline, I decided to go for something real - the BitTorrent protocol.

When I launched my Patreon, I vowed to explain how computers work. But in 2019, computers rarely work in isolation. So let’s take the time to write a few articles about how computers talk to each other.

I sold you on some additional functionality for catscii last chapter, and we got caught up in private registry / docker shenanigans, so, now, let’s resume web development as promised.

Adding geolocation

We kinda left the locat crate stubby, it doesn’t actually do any IP to location lookups. It doesn’t even have a dependency on a crate that can do that.

I used to be afraid of async Rust. It’s easy to get into trouble!

But thanks to the work done by the whole community, async Rust is getting easier to use every week. One project I think is doing particularly great work in this area is async-std.

Let’s say we want to compute the SHA3-256 hash of a file. It’s very easy to do with synchronous I/O: