Hands-On Concurrency with Rust

Data parallelism and OS processes – evolving corewars players

In this final section of the chapter, I'd like to introduce a project that will carry us over into the next chapter. This project will tie together the concepts we've introduced so far in this chapter and introduce a new one: processes. Compared to threads, processes have a lot to recommend them: memory isolation, independent priority scheduling, convenient integration of existing programs into your own, and a long history of standardized syscalls (in Unix) to deal with them. But, memory isolation is less ideal when your aim is to fiddle with the same memory from multiple concurrent actors—as in atomic programming—or when you otherwise have to set up expensive IPC channels. Worse, ...