The lost art of semaphores

I am a huge fan of System V Inter Process Communication primitives . There is some rawness and UNIX spirit to them. There is a newer and kinda “improved” version of those primitives named POSIX IPC. While there are a few things in POSIX IPC that can’t be done with System V IPC, most of the time it’s the other way around. Primarily due to the rawness of System V IPC. Let’s check the POSIX…