hoff@en.ecn.purdue.edu (Michael Hoefflinger) (02/17/91)
Just wanted to take a moment to thank all the kind folks that took
a minute to write me about the non-blocking socket question I had.
The solution, courtesy of both Les Hill and Mike "Lakermaniac
(not such a good game agains Boston, eh?)" Sullivan:
flags = fcntl (socket, F_GETFL, 0);
fcntl (socket, F_SETFL, flags | FNDELAY);
This was indeed the Right Thing (tm) to do, and the Right Time (tm) to do it.
Since I got such a quick and working response on my last question,
I think I will abuse this living user's manual some more:
--> Question is, how can I execute a getchar() that will return with
EOF immediately if the user has not typed anything, or with
the char as soon as it is typed? The problem is that getchar
is buffered I/O, and apparently _fillbuf() doesn't exit back to
getchar until a carriage return is executed.
Appreciate your time. And thanks again...
Michael Hoefflinger
EE, Purdue University (hoff@ecn.purdue.edu, uxg@fugue.cc.purdue.edu)
"I'm not really a EE grad student, but I played one on TV."jik@athena.mit.edu (Jonathan I. Kamens) (02/18/91)
In article <1991Feb16.225731.20445@en.ecn.purdue.edu>, hoff@en.ecn.purdue.edu (Michael Hoefflinger) writes: |> Since I got such a quick and working response on my last question, |> I think I will abuse this living user's manual some more: "Abuse" is the right word. (1/2 :-) |> --> Question is, how can I execute a getchar() that will return with |> EOF immediately if the user has not typed anything, or with |> the char as soon as it is typed? The problem is that getchar |> is buffered I/O, and apparently _fillbuf() doesn't exit back to |> getchar until a carriage return is executed. This is question 5 on the "Frequently Asked Questions about Unix - with Answers" posting to comp.unix.questions. If you can't get a hold of it at your site, E-mail me and I'll send it to you. -- Jonathan Kamens USnail: MIT Project Athena 11 Ashford Terrace jik@Athena.MIT.EDU Allston, MA 02134 Office: 617-253-8085 Home: 617-782-0710