I particularly like lock-free (wait-free?) SPSC queues because they're (relatively) easy to get right, and are extremely useful for buffering in embedded system

I particularly like lock-free (wait-free?) SPSC queues because they're (relatively) easy to get right, and are extremely useful for buffering in embedded systems. I end up with something like this on almost every project: One side of the queue is a peripheral like a serial port that needs to be fed/drained like clockwork to avoid losing data or glitching (e.g. via interrupts or DMA), and the other side is usually software running on the main thread, that wants to be able to work at its own pace and also go to sleep sometimes. An SPSC queue fits this use-case nicely. James Munns has a fancy one written in Rust [1], and I have a ~100 line C template [2]. [1] https://github.com/jamesmunns/bbqueue https://github.com/jamesmunns/bbqueue [2] https://gist.github.com/ohazi/40746a16c7fea4593bd0b664638d7017 https://gist.github.com/ohazi/40746a16c7fea4593bd0b664638d70...