On 7/19/2012 03:12, Mark Morgan Lloyd wrote:
waldo kitty wrote:
On 7/18/2012 08:48, Mark Morgan Lloyd wrote:
I was reminded of this when somebody was asking about portable signalling APIs
the other day, but I think it's also relevant to discussion of e.g. how to pass
a keyword to a help viewer.
I am obviously aware of the fact that FPC has an IPC unit which uses a temporary
file, although I have always assumed that that was more to support targets like
DOS that had absolutely no concept of pipes or sockets. But perhaps it really is
the safest choice in all cases.
FWIW: DOS does have and has had pipes... otherwise things like DIR | MORE
would not work... maybe you mean named pipes? ;)
Yes, I do. And I'm obviously aware that there are plenty of addons that graft
named pipes (and mailslots etc.) onto DOS.
i never used any of that... didn't need to AFAIK... just regular pipes worked
fine for the times i needed them but yes, they a much different animals than
named pipes...
However I always think of named
pipes, threads etc. as being primarily OS/2 v1 innovations, although some might
have been introduced by the obscure Microsoft OS usually referred to as
"European MS-DOS v4.0".
for some reason i was thinking that unix and xenix had named pipes back then...
either way, i'm out and apologize for the diversion ;)
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