The guide looks well written and I can't see any major errors (just skimmed it.) But some of the diagrams are potentially misleading. E.g. read <---- write w

The guide looks well written and I can't see any major errors (just skimmed it.) But some of the diagrams are potentially misleading. E.g. read <---- write write ----> read Implies that send/recv perfectly correlate to each other when they can be split up in stream sockets. Your code addresses that already with loops. So I know you know that. Just confusing diagrams I guess.