12 Aug
2022
12 Aug
'22
11:15 a.m.
Paul Ruizendaal via TUHS <tuhs(a)tuhs.org> wrote:
I’m interested in the journey of SysV IPC. So far I
have established
that these originated in CBUnix, with a lot of thinking on how to optimize
these around the time that Unix 3.0/4.0/5.0 happened. They did not appear
in Unix 3.0 / SysIII, and from the Unix 4.0 documentation I gather that
it was not included there either.
I am not sure you can make that conclusion, as the 4.0 printed documents
did not include the programmer's manual; instead they gave out the
3.0 manual and there was a list of changes somewhere in the other doc.
Unfortunately, without actual 4.0 sources, it will always be a question.
I have this VERY vague memory that I saw IPC in 4.0, but I could
very easily be wrong... It was over 40 years ago, after all. :-)
Arnold