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From: hoff@en.ecn.purdue.edu (Michael Hoefflinger)
Newsgroups: comp.unix.programmer
Subject: IPC/socket QUESTION...
Keywords: IPC, socket, accept(), blocking
Message-ID: <1991Feb8.150520.5678@en.ecn.purdue.edu>
Date: 8 Feb 91 15:05:20 GMT
Sender: hoff@ecn.purdue.edu
Followup-To: comp.unix.programmer
Distribution: na
Organization: Purdue University Engineering Computer Network
Lines: 24

We interrupt the regularly scheduled high-level UNIX(tm) conversation
for this (seemingly) simple question:

   I'm using stream sockets to communicate between a client and a
   server process.  In the server I use a call to accept() to connect
   to a client socket in the server's request queue.

   --> The question is how do I make this accept() call NON-BLOCKING?  In
       other words, if there are no clients waiting to connect, I would
       like accept() to return with errno=EWOULDBLOCK instead of blocking
       until someone wants to connect.

   I've tried various attempts at setsockopt(), but nothing seems to
   do the trick.  I guess I could set up a timer interval interrupt,
   but that seems cludgy (sp?) at best.

   I assure you any ideas would be VERY MUCH APPRECIATED...

ADVthanksANCE

Michael Hoefflinger
"I'm not a EE grad student, but I play one on TV..."
hoff@ei.ecn.purdue.edu   (WYSE...)
uxg@fugue.cc.purdue.edu  (NeXT)