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From: nather@utastro.UUCP
Newsgroups: net.unix-wizards
Subject: Re: signals are not IPC!
Message-ID: <473@utastro.UUCP>
Date: Fri, 15-Jul-83 10:25:45 EDT
Article-I.D.: utastro.473
Posted: Fri Jul 15 10:25:45 1983
Date-Received: Sun, 17-Jul-83 00:29:57 EDT
References: utzoo.3087
Lines: 11

Inter-process communication:

If somebody *does* decide to modify Un*x to permit such communication,
please consider the possibility that multiple cpu's may be running
different processes that must communicate.  Example:  assuming only
one cpu, a LIFO stack works fine.  With 2 cpu's, both with access
to the stack pointer, disaster results.  A FIFO (mailbox) scheme is
ok so long as each cpu has its own pointer.

                                        Ed Nather
                                     ...ihnp4!kpno!utastro!nather