You asked a question about the array and I answered it.

Yeah I missed the part where you said mmap. There's libraries that make that safer, but clearly there's a preference for working with the raw tools here.

> Otherwise have fun with your own mental image of game programming yourself.

Ignorance is bliss. Have fun ignoring the progress systems programming has made in the last 30 years. Why bother even looking into it right? If what works for you works... that's all that matters.