rio

The author of sled[1], an embedded database in Rust which has a number of promising features, has also written parts of rio[2], an underlying pure Rust io_uring library, which is intended to become the core write path for sled. rio has support for files but also has a demo for TCP (on Linux 5.5 and later) and O_DIRECT. I tested rio recently as I had a Brilliant but Bad Idea™ involving file access and was pleasantly surprised by the API, as I have been with sled's. I'm excited for the experimentation in the Rust ecosystem and for such low level crates to handle the complex io_uring tasks (relatively) safely! [1]: https://github.com/spacejam/sled [2]: https://github.com/spacejam/rio

This doesn't read to me as "the maintainer doesn't seem to care" so much as they feel that the unsafety is likely an edge case and, in another issue, there's some more discussion around fixing it. https://github.com/spacejam/rio/issues/12#issuecomment-58375...

Unfortunately rio is unsound (and the maintainer doesn’t seem to care) [1]. It’s also GPL3 which limits its use in many projects. But I too am hopeful. Just not for rio’s API model specifically. [1] https://github.com/spacejam/rio/issues/11

https://github.com/spacejam/sled via https://github.com/spacejam/rio