genawaiter
tokio
genawaiter | tokio | |
---|---|---|
11 | 196 | |
428 | 24,761 | |
- | 1.5% | |
0.0 | 9.5 | |
almost 2 years ago | about 15 hours ago | |
Rust | Rust | |
- | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
genawaiter
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Letlang — Roadblocks and how to overcome them - My programming language targeting Rust
Yes, Letlang is translated to Rust and the runtime is implemented in Rust, using tokio and genawaiter. The compiler itself is also built in Rust.
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Hey Rustaceans! Got a question? Ask here (7/2023)!
(note that genawaiter itself doesn't support no_std environments, but there's a merge request for that.)
- What is the next big thing coming to Rust
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A personal list of Rust grievances
> `async` to make fake generators.
Genawaiter[0] is one of them.
[0]: https://github.com/whatisaphone/genawaiter
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Generalizing coroutines - The Rust Language Design Team
Are you aware of the genawaiter crate?
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Do not wait for Rust generators
A warning though: genawaiter doesn't seem to be maintained. The last commit is 2 years old, and issues are not active (I opened one that I find somewhat critical: https://github.com/whatisaphone/genawaiter/issues/35).
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Hey Rustaceans! Got an easy question? Ask here (46/2021)!
There's e.g. https://github.com/whatisaphone/genawaiter, but you can also use yield directly (https://doc.rust-lang.org/beta/unstable-book/language-features/generators.html).
- What feature would you like to see implemented/stabilized?
- What's the outlook on generator functions in Rust?
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Generators in Rust?
If you're interested in something that can be used right now, on stable, you should take a look at the genawaiter crate, it reimplements generators with async.
tokio
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On Implementation of Distributed Protocols
Being able to control nondeterminism is particularly useful for testing and debugging. This allows creating reproducible test environments, as well as discrete-event simulation for faster-than-real-time simulation of time delays. For example, Cardano uses a simulation environment for the IO monad that closely follows core Haskell packages; Sui has a simulator based on madsim that provides an API-compatible replacement for the Tokio runtime and intercepts various POSIX API calls in order to enforce determinism. Both allow running the same code in production as in the simulator for testing.
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I pre-released my project "json-responder" written in Rust
tokio / hyper / toml / serde / serde_json / json5 / console
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Cryptoflow: Building a secure and scalable system with Axum and SvelteKit - Part 0
tokio - An asynchronous runtime for Rust
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Top 10 Rusty Repositories for you to start your Open Source Journey
3. Tokio
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API Gateway, Lambda, DynamoDB and Rust
The AWS SDK makes use of the async capabilities in the Tokio library. So when you see async in front of a fn that function is capable of executing asynchronously.
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The More You Gno: Gno.land Monthly Updates - 6
Petar is also looking at implementing concurrency the way it is in Go to have a fully functional virtual machine as it is in the spec. This would likely attract more external contributors to developing the VM. One advantage of Rust is that, with the concurrency model, there is already an extensive library called Tokio which he can use. Petar stresses that this isn’t easy, but he believes it’s achievable, at least as a research topic around determinism and concurrency.
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Consuming an SQS Event with Lambda and Rust
Another thing to point out is that async is a thing in Rust. I'm not going to begin to dive into this paradigm in this article, but know it's handled by the awesome Tokio framework.
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netcrab: a networking tool
So I started by using Tokio, a popular async runtime. The docs and samples helped me get a simple outbound TCP connection working. The Rust async book also had a lot of good explanations, both practical and digging into the details of what a runtime does.
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Thread-per-Core
Regarding the quote:
> The Original Sin of Rust async programming is making it multi-threaded by default. If premature optimization is the root of all evil, this is the mother of all premature optimizations, and it curses all your code with the unholy Send + 'static, or worse yet Send + Sync + 'static, which just kills all the joy of actually writing Rust.
Agree about the melodramatic tone. I also don't think removing the Send + Sync really makes that big a difference. It's the 'static that bothers me the most. I want scoped concurrency. Something like <https://github.com/tokio-rs/tokio/issues/2596>.
Another thing I really hate about Rust async right now is the poor instrumentation. I'm having a production problem at work right now in which some tasks just get stuck. I wish I could do the equivalent of `gdb; thread apply all bt`. Looking forward to <https://github.com/tokio-rs/tokio/issues/5638> landing at least. It exists right now but is experimental and in my experience sometimes panics. I'm actually writing a PR today to at least use the experimental version on SIGTERM to see what's going on, on the theory that if it crashes oh well, we're shutting down anyway.
Neither of these complaints would be addressed by taking away work stealing. In fact, I could keep doing down my list, and taking away work stealing wouldn't really help with much of anything.
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PHP-Tokio – Use any async Rust library from PHP
The PHP <-> Rust bindings are provided by https://github.com/Nicelocal/ext-php-rs/ (our fork of https://github.com/davidcole1340/ext-php-rs with a bunch of UX improvements :).
php-tokio's integrates the https://revolt.run event loop with the https://tokio.rs event loop; async functionality is provided by the two event loops, in combination with PHP fibers through revolt's suspension API (I could've directly used the PHP Fiber API to provide coroutine suspension, but it was a tad easier with revolt's suspension API (https://revolt.run/fibers), since it also handles the base case of suspension in the main fiber).
What are some alternatives?
rust-rdkafka - A fully asynchronous, futures-based Kafka client library for Rust based on librdkafka
async-std - Async version of the Rust standard library
kbio - Another Async IO Framework based on io_uring
Rocket - A web framework for Rust.
polonius - Defines the Rust borrow checker.
hyper - An HTTP library for Rust
rocket-lamb - A crate to allow running a Rocket webserver as an AWS Lambda Function with API Gateway or an Application Load Balancer
futures-rs - Zero-cost asynchronous programming in Rust
generator-rs - rust stackful generator library
smol - A small and fast async runtime for Rust
srgb.rs - Implementation of sRGB primitives and constants
rayon - Rayon: A data parallelism library for Rust