If the processes that want to communicate have a common parent, you can use socketpair to create a non-IP socket they can talk over. The parent would have to create the sockets, then allow them to be inherited by a child across a fork.

You can fake this up to an extent by creating a "launcher" program to create the sockets and start up the right programs. If you end up starting other scripts with exec or system, make sure you don't cause the file descriptors to be closed when you start the new program; the easiest way to do this is by setting $^F to a high number.

In reply to Re: Which IPCs are available on Windows that support select() function besides sockets? by sgifford
in thread Which IPCs are available on Windows that support select() function besides sockets? by Anonymous Monk

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