tokio-tungstenite
slotmap
tokio-tungstenite | slotmap | |
---|---|---|
15 | 14 | |
1,621 | 1,039 | |
2.6% | - | |
7.3 | 3.4 | |
4 months ago | 2 months ago | |
Rust | Rust | |
MIT License | zlib License |
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tokio-tungstenite
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How to know when can I send a message via a websocket with tokio tungstenite?
I can't help you debug your code if you do not provide it. Have you looked at the example client?
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Yet another Web-Socket implementation in rust.
It passed all test of the autobahn testsuite And web-socket-benchmark show about 3x faster then tokio-tungstenite
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Hey Rustaceans! Got a question? Ask here (7/2023)!
There are example files in the tokio-tungstenite crate called `autobahn-client.rs` and `autobahn-server.rs`. Why are they called autobahn? I googled and can't understand what autobahn is all about. Is it a websocket pattern? Or some protocol?
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Hey Rustaceans! Got a question? Ask here (5/2023)!
I'm using another crate that requires tls, specifically tokio-tungstenite, I'll try your suggestions later today once I get home
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Hey Rustaceans! Got a question? Ask here (3/2023)!
Tokio-tungstenite - It looks like in this example, it's spamming the task thread with wakeup calls from all of the active connections. This design choice makes me doubt that this was well written in general.
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Should i use ws-rs?
tokio-tungstenite is the more popular library. In frameworks, offhand Axum supports websockets (docs, example)
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How would you refactor this code to use std's Mutex instead of Tokio's mutex
If you only have one task sending data to the sink, you probably don't need forward, as you can just write to the sink directly (you might not even need to split the stream in the first place, but i'm not sure about that). But often you want to write to the sink from different tasks (e.g. this example takes messages sent from one websocket connection, and broadcasts it onto every other connected websocket, so the sink for each websocket needs to be accessed by every other websocket handler task), and you can't do that with only the sink as you can't clone it. Either need to wrap it into a Mutex and clone that around the different tasks (and lock it every time you need to write to it, like OP did originally) or you can use forward to map the rx (receiver) of a channel to the sink, and clone the tx (sender) part of the channel for each task that wants to write to the sink. That way, you only have one task that is accessing the sink directly, so no issues with synchronization.
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Hey Rustaceans! Got a question? Ask here! (30/2022)!
Has anyone worked with websockets before? Particularly with the tokio-tungstenite crate? I'm getting a Protocol(ResetWithoutClosingHandshake) error in my request. I send in some text, and i'm supposed to receive an audio file back.
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What's the best production-grade websocket library in Rust?
tokio-tungstenite
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help using async websocket using tokio-tungstenite
i based my code mostly on the client example from the tokio-tungstenite project: https://github.com/snapview/tokio-tungstenite/blob/master/examples/client.rs
slotmap
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Tree Borrows - A new aliasing model for Rust
It looks like .get_disjoint_mut() from slotmap failed under stacked borrows, but seems to pass under tree borrows
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Indexing vs Smart Pointers
I think slotmap is meant to solve this exact issue. Basically when you insert into a collection you get an Id:Version tuple as key. When you reuse a slot, next time the key will be Id:Version+1 and when you try to access the removed value by using Id:Version, it will return None. You can think about it as delayed invalidation.
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Hey Rustaceans! Got a question? Ask here (5/2023)!
Dunno about existing implementations, but it looks like it's a feature they'd accept: https://github.com/orlp/slotmap/issues/73
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Unsafe is a bad practice?
It's actually quite easy.
- Rust is more portable than C for pngquant/libimagequant
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Hey Rustaceans! Got an easy question? Ask here (50/2021)!
You can use either slot map or slab to side step rust borrow checker. Example https://github.com/orlp/slotmap/blob/master/examples/rand_meld_heap.rs
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Rust data structures with circular references
I don't know, only have some theories.
1. The name isn't particularly catchy or descriptive. It is the correct name for the data structure, but not too many people know the data structure.
2. People don't even know what they're missing. It's not a very Google-able problem to begin with. Slotmap provides an interesting solution to (circular) ownership and safe allocator / weak pointer design problems, but people don't recognize that they're having them or that slotmap could help.
As an example of this, the doubly linked list example (https://github.com/orlp/slotmap/blob/master/examples/doubly_...) can safely remove nodes from the linked list given their handle, in O(1), even from the middle, completely safely and correctly, even in the presence of double deletions or ABA memory re-use. You can't replicate this with just pointers, without introducing heavy refcounting solutions.
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Is it possible to write anything using 100% safe Rust?
Nope, it's perfectly safe: https://github.com/orlp/slotmap/blob/master/examples/doubly_linked_list.rs.
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Syncing HashMap values amongst User
I think keeping the relationship between child and parent elements in the node graph might be better accommodating better via a psuedo-ECS system, see https://www.reddit.com/r/rust/comments/cnjhup/idiomatic_way_to_reference_parent_struct/. The https://github.com/orlp/slotmap crate looks promising. I think I'm just going to ditch the global shared HashMap in favor of something that can better accommodate child/parent relations.
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Beginner question: does it become easier to write datastructures with complex ownership semantics?
I think the slotmap crate is similar to what you're trying to write: https://github.com/orlp/slotmap
What are some alternatives?
async-tungstenite - Async binding for Tungstenite, the Lightweight stream-based WebSocket implementation
rust-typed-arena - The arena, a fast but limited type of allocator
Warp - Warp is a modern, Rust-based terminal with AI built in so you and your team can build great software, faster.
slab - Slab allocator for Rust
reqwest - An easy and powerful Rust HTTP Client
multi_mut - Methods on HashMap and BTreeMap for safely getting multiple mutable references to the contained values.
axum - Ergonomic and modular web framework built with Tokio, Tower, and Hyper
rust - Rust for the xtensa architecture. Built in targets for the ESP32 and ESP8266
tangle - Radically simple multiplayer / networked WebAssembly
stdx - The missing batteries of Rust
warp - A super-easy, composable, web server framework for warp speeds.
nomicon - The Dark Arts of Advanced and Unsafe Rust Programming