Of that I am not sure, but I'll take your word for it.

However, the socket code that underlies the mechanism that allows two or more forked processes to appear to share common hashes and arrays almost certainly is portable to any platform that supports sockets. If the OP has to come up with his own IPC mechanism to allowed multiple processes to share one or more hashes, the code in forks::shared would be a good place to buy wood, rather than having to grow a tree from seed.