ltp
embassy
ltp | embassy | |
---|---|---|
6 | 70 | |
2,255 | 4,405 | |
1.0% | 4.9% | |
9.8 | 9.9 | |
9 days ago | 2 days ago | |
C | Rust | |
GNU General Public License v3.0 only | Apache License 2.0 |
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.
ltp
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Ext4 data corruption in stable kernels [LWN.net]
Can anyone verify that this only happens under O_DIRECT? I see that the original bug report references preadv03, a test case which uses O_DIRECT.
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Ask HN: Why the Linux Kernel doesn't have unit tests?
There are tests, they're just out of tree, focused on integration rather than unit, and very decentralized. You'll get nastygrams on lkml if you break them.
Here's one prominent example: https://github.com/linux-test-project/ltp
- Uncle Bob and Silver Bullets
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Needs Some Heavy Checking
It's not in the codebase proper, but the Linux Test Project https://github.com/linux-test-project/ltp is probably a good place to start to see what's currently being tested for a syscall and to add new tests if there's a gap. https://github.com/linux-test-project/ltp/tree/master/testca... is some tests of this particular syscall.
embassy
- Embassy 在 Blue Pill 上的点灯案例
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Why choose async/await over threads?
thanks. looked that up. for the curious: https://embassy.dev/
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Accessing the Pinecil UART with Picoprobe
Running the Embassy RP2040 USB CDC ACM serial example takes about 5 seconds on a Pico.
https://github.com/embassy-rs/embassy/blob/main/examples/rp/...
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Avoid Async Rust at All Cost
Async solves different problems, you can, for instance, have just a single-threaded CPU and still have a nice API if you have async-await. It might not be so cool at a higher level as Go's approach of channels and threads, but it's cool in embedded, read this:
https://github.com/embassy-rs/embassy?tab=readme-ov-file#rus...
"Rust's async/await allows for unprecedently easy and efficient multitasking in embedded systems. Tasks get transformed at compile time into state machines that get run cooperatively. It requires no dynamic memory allocation, and runs on a single stack, so no per-task stack size tuning is required. It obsoletes the need for a traditional RTOS with kernel context switching, and is faster and smaller than one!"
I'm just toying with Raspberry Pi Pico and it's pretty nice.
Go and Rust have different use cases, the async-await is nice at a low level.
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Is anyone using coroutines seriously?
I have not yet dipped by toes in the Rust waters, but reading about the embassy project is actually what piqued my curiosity about using C++ coroutines in embedded. Are you familiar with the project or have you found it lacking?
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The state of BLE and Rust (no_std)
I think I get the basics (shoutout to the Rust Embedded Working Group!), and I've started looking for the stack I'd be using. I think Embassy is really amazing, as well as the work of the ESP team -- hats off.
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Rust newcomers are 70x less likely to create vulnerabilities than C++ newcomers [pdf]
> }
And this is how to do it using embassy, which is an async framework for embedded in rust:
https://github.com/embassy-rs/embassy/blob/main/examples/rp/...
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The State of Async Rust
> not good for embedded
embassy begs to differ
https://embassy.dev/
async/await is really just a syntax for building state machines in a way that resembles regular code. It's compiled down to the same code that you would write by hand anyway (early on it had some bloat in state size but I think it's all fixed now).
And embedded has a lot of state machines!
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Asynchronous Rust on Cortex-M Microcontrollers
You can run multiple executors at different interrupt priority levels (with multiple tasks per executor), which allows tasks on the higher priority executor to interrupt other tasks. Here's an example https://github.com/embassy-rs/embassy/blob/main/examples/nrf...
- Espressif advances with Rust – 30-06-2023
What are some alternatives?
fitnesse - FitNesse -- The Acceptance Test Wiki
rtic - Real-Time Interrupt-driven Concurrency (RTIC) framework for ARM Cortex-M microcontrollers
Melang - A script language of time-sharing scheduling coroutine in single thread
rusty-clock - An alarm clock with environment stats in pure bare metal embedded rust
linux - Linux kernel source tree
smoltcp - a smol tcp/ip stack
Understanding-Unix-Linux-Programming - Source code of Understanding Unix/Linux Programming. The book provides example code in C, I would like to replicate it in Rust.
rust-mos - Empowering everyone to build reliable and efficient software.
XRT - Run Time for AIE and FPGA based platforms
nrf-hal - A Rust HAL for the nRF family of devices
dtrace-utils - DTrace-utils contains the DTrace port to Linux
async-std - Async version of the Rust standard library