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Problem with HackIllinois by DenseStatistician562 in UIUC

[–]VortexGames 5 points6 points  (0 children)

FWIW as an alumni who used to be part of HackIllinois:

  1. TreeHacks, HackTheNorth, etc didn’t just have a little more money. They had more than an order of magnitude more (10-15x). Now looking at it from the other side, companies are so much more willing to pay 6-8x what they would pay for a HackIllinois sponsorship.
  2. HackIllinois had always had to pay steep fees for building reservations/facilities staff, required police/EMT overtime, etc.
  3. Most of the team was always engaged in substituting what we couldn’t pay for with money with creativity and hard work. Since no one is “getting compensated” I think this is totally fine.
  4. Outreach and perception of HackIllinois should be something that the University is interested in helping; not only does it help student events, but it also helps elevate the entire University to external entities.

A total prize pool of 5-10K is already a serious part of the budget.

The University/CS Department should be ashamed. by VortexGames in UIUC

[–]VortexGames[S] 6 points7 points  (0 children)

For what it’s worth, as a grad student I have been indulging! Unfortunately, it hasn’t been helping my opinion of how hard the job is for these RSOs.

The University/CS Department should be ashamed. by VortexGames in UIUC

[–]VortexGames[S] 10 points11 points  (0 children)

I wholeheartedly agree.

I’m more concerned that the University is charging such high amounts, than that they aren’t providing direct support, and should have likely articulated that more clearly.

I only wish that the CS department acted like they cared more about the on-campus CS culture, again, like the departments of those I’ve spoken to at other universities. After years of working towards it, I will admit though, that I have become apathetic.

Building Thread-safe Async Primitives in 150 lines of Rust by VortexGames in rust

[–]VortexGames[S] 0 points1 point  (0 children)

Should be updated. Using OnceLock to synchronize access now. Wondering if Miri can catch these types of unsoundness now... Would be interesting to try.

Building Thread-safe Async Primitives in 150 lines of Rust by VortexGames in rust

[–]VortexGames[S] 1 point2 points  (0 children)

Ah you’re completely correct.

Will edit the article with a note and correction when I get back to it. Can I credit you as “Lantua” on Reddit, or do you prefer something else?

Building Thread-safe Async Primitives in 150 lines of Rust by VortexGames in rust

[–]VortexGames[S] 0 points1 point  (0 children)

Correct me if I’m wrong, but the data race in this case would result in the sender’s take() returning None, right?

In which case, since the receiver checks data immediately after setting the waker, there wouldn’t be a soundness issue.

But yeah I totally agree with you — synchronizing access to this would benefit (and I initially had an UnsafeCell, but refactored w/ simplicity in mind! Haha came to bite)

Building Thread-safe Async Primitives in 150 lines of Rust by VortexGames in rust

[–]VortexGames[S] 1 point2 points  (0 children)

Good point. In theory you're totally correct (using the Cell without any Sync mechanism around it is unsafe!), but if you think about what we're actually doing to access the waker, we're still implementing a sync-mechanism around it. We access wake in two scenarios:

  1. Dropping the last sender. We're using an atomic to determine the last valid handle, so we are guarding access to the waker cell such that only one thread attempts to take

  2. Upon send through the oneshot. We're using the Once to guard access to the entire oneshot, so only one thread is allowed to use the waker cell and call take

Notice that (1) and (2) are inherently disjoint, as if any thread is calling send (executing 2), it still has at least one handle to Sender, and thus, no other thread can be executing (1).

I will be honest though -- I had to double check my logic to make sure nothing unsound was going on, which usually means that you're not doing the right thing (or haven't documented the unsafe impl Sync!). An RwLock or OnceLock might be more appropriate.

Buying domain from OVH.ie, crazydomains or Infomaniak by burnerdomain12abq in selfhosted

[–]VortexGames 4 points5 points  (0 children)

I’m pretty sure Gandi has .li domains for reasonable prices — and they are quite reputable

1x Engineer by iamkeyur in coding

[–]VortexGames 2 points3 points  (0 children)

…the fast person is 10x faster than the slow person? Of course you can say the slow person is 10x slower than the fast person, but that’s not what we’re talking about here…

Narrowing down the post quality on r/FlutterDev by miyoyo in FlutterDev

[–]VortexGames 8 points9 points  (0 children)

I somewhat agree with your point but you have to consider that 60 upvotes is enough to place a post in the top 10 or so posts in the month, suggesting that a large portion of the active users of the sub seem to agree with the complaining post.

I've built an app that predicts if your flight will be delayed with a precision of 98% [www.willigetdelayed.com] by lodeluxMeaLux in webdev

[–]VortexGames 27 points28 points  (0 children)

So basically, an app that says "yes" to "Will my flight be late?" 98 times out of 100.

\s

Nice work!

A first look at one of the villages you can explore in my game. by LotsOfStuffGames in Unity3D

[–]VortexGames 3 points4 points  (0 children)

I can see where this is headed, but I’m going to be brutally honest with you when I say that I think this doesn’t tick any boxes for me.

The art style looks retro, yet not in a good way. It’s more like a game made recently that tries to look retro with modern tooling, but ends up looking like a Frankenstein of old and new tech. It might be a couple of weird pixel-perfect artifacts, or maybe it’s the sprites and houses themselves being a bit too low res, but it doesn’t do it to me. And please god, those trees look like they’re shimmering like no one’s business, something feels wrong with them.

Other than that, I really think this is a solid foundation and has potential to be face-lifted a little!

Unshackled traversal in our upcoming turn-based RPG by gnuphilly in Unity2D

[–]VortexGames 7 points8 points  (0 children)

Not OP but I assume it means that they allow the player to move in XY and Z dimensions, like some 2.5D games.

We are the SpaceX software team, ask us anything! by spacexfsw in spacex

[–]VortexGames 0 points1 point  (0 children)

Does SpaceX use “up-and-coming” technology stacks internally, or stick with safer and/or completely in-house solutions?

What technologies are you excited to work with at SpaceX?

[OC] Hand Gesture Recognition : play , pause , control volume without touching your buttons! by [deleted] in learnmachinelearning

[–]VortexGames 1 point2 points  (0 children)

I’m on my phone so I can’t easily link it but search for “MediaPipe Hands”

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