21 Oct
2019
21 Oct
'19
6:34 p.m.
{Been meaning to get to this one for a while...}
From: Pat Barron <patbarron(a)acm.org>
The idea of processes being able to talk to each other
(without some
kind of pre-arrangement, like setting up a pipe between them, or using
temporary files) was just amazing ... On V7m, I stumbled across the
mpx(5) man page.
It's probably worth pointing out that before V7, stock Unix _didn't_ have a
way for two un-related processes to communicate, hence the invention of port()
by Rand. See:
https://minnie.tuhs.org//cgi-bin/utree.pl?file=BBN-V6
https://minnie.tuhs.org//cgi-bin/utree.pl?file=BBN-V6/doc/ipc
(Note: BBN did _not_ do the original port() stuff, they just used it.)
Noel