[libc] [llvm] [libc][CndVar] reimplmement conditional variable with FIFO ordering (PR #192748)

[Alexey Samsonov via llvm-commits]

https://github.com/vonosmas commented:

Thank you for working on this!

I only have a few minor questions / comments not related to the core algorithm you're implementing.

https://github.com/llvm/llvm-project/pull/192748