HN user
After a quick glance, it seems that you don’t maintain the reading/writing status in the shared memory. That means you have to make a syacall in every read/write call. You could look into the kaze-core for an alternative implementation, which doesn’t require any syscall if possible.
Btw, kaze-core uses a `used` atomic variable, to avoid reading both readPos/writePos in routine - they are not atomic at all.
Is there any chance to modify Vyukov's MPMC queue implement (https://www.1024cores.net/home/lock-free-algorithms/queues/b...) to support drop handler? That work doesn't need 128 bit CAS.
FYI: I have made a SPSC circular buffer for swap data in a pair of process: https://github.com/starwing/kaze-core
maybe that is what you want.
I spent a month porting Rust's Ariadne diagnostic renderer to C, with Claude as a pair programming partner. The project taught me a lot about working with LLMs on real system programming tasks - what works, what doesn't, and where human expertise still matters.