avalanchego
tokio
avalanchego | tokio | |
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39 | 196 | |
2,068 | 24,761 | |
1.0% | 1.8% | |
9.8 | 9.5 | |
3 days ago | 2 days ago | |
Go | Rust | |
BSD 3-clause "New" or "Revised" License | MIT License |
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avalanchego
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On Implementation of Distributed Protocols
Avalanche β a blockchain platform based on the Avalanche consensus protocol (written in Go);
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Discover Avalanche
For more information, you can visit the Avalanche website or check out their documentation.
- π οΈ Avalanche Cortina 4 is out π Release Focus: X-Chain DB Cleanup + Modify ProposerVM Window + x/sync Code Refactor + (Rare) Bootstrap Stall Fix
- Cortina ([email protected]) is out now & will be activating on April 25th at 11AM ET. Validators MUST update nodes PRIOR to this date otherwise they will not be able to process new blocks post upgrade.
- Upgrade v.1.9.14: An upgrade to fix an issue affecting some validators. All Avalanche Validators should upgrade their nodes to ensure consistency, uptime and responsiveness.
- Avalanche's Public API is Broken
- How can you defend this chain? I have no idea...
- βοΈπ Avalanche Banff 1 is out ββ·οΈ Expanding upon the Elastic Subnet capabilities to include VM2, a new VM <> VM communication tool that builds towards full Subnet interoperability++
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Introduction to Virtual Machines (VMs)
For more information, see here.
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 isnβt easy, but he believes itβs 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 β 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?
avalanchejs - The Avalanche Platform JavaScript Library
async-std - Async version of the Rust standard library
grin - Minimal implementation of the Mimblewimble protocol.
Rocket - A web framework for Rust.
subnet-evm - Launch your own EVM as an Avalanche Subnet
hyper - An HTTP library for Rust
saito-lite - A cross-platform javascript saito implementation
futures-rs - Zero-cost asynchronous programming in Rust
building-secure-contracts - Guidelines and training material to write secure smart contracts
smol - A small and fast async runtime for Rust
avalanche-wallet - The Avalanche web wallet
rayon - Rayon: A data parallelism library for Rust