depot/third_party/tvl/ops/posix_mq.rs/README.md

posix_mq
========

[![crates.io](https://img.shields.io/crates/v/posix_mq.svg)](https://crates.io/crates/posix_mq)

This is a simple, relatively high-level library for the POSIX [message queue API][]. It wraps the lower-level API in a
simpler interface with more robust error handling.

Check out this project's [sister library][] in Kotlin.

Usage example:

```rust
// Values that need to undergo validation are wrapped in safe types:
let name = Name::new("/test-queue").unwrap();

// Queue creation with system defaults is simple:
let queue = Queue::open_or_create(name).expect("Opening queue failed");

// Sending a message:
let message = Message {
  data: "test-message".as_bytes().to_vec(),
  priority: 0,
};
queue.send(&message).expect("message sending failed");

// ... and receiving it!
let result = queue.receive().expect("message receiving failed");
```

## Development

Development happens in the [TVL
monorepo](https://cs.tvl.fyi/depot/-/tree/ops/posix_mq.rs).

Starting from version `3771.0.0`, the version numbers correspond to
_revisions_ of the TVL repository, available as git refs (e.g.
`refs/r/3771`).

See the TVL documentation for more information about how to contribute
to the codebase.

[message queue API]: https://linux.die.net/man/7/mq_overview
[sister library]: https://github.com/aprilabank/posix_mq.kt