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Path: utzoo!mnetor!seismo!rochester!jpayne
From: jpayne@rochester.ARPA (Jonathan Payne)
Newsgroups: comp.unix.questions
Subject: fcntl
Message-ID: <28378@rochester.ARPA>
Date: Tue, 9-Jun-87 10:36:24 EDT
Article-I.D.: rocheste.28378
Posted: Tue Jun  9 10:36:24 1987
Date-Received: Fri, 12-Jun-87 02:14:31 EDT
Organization: U of Rochester, CS Dept., Rochester, NY
Lines: 15
Keywords: SIGIO, fcntl, SysV


(I don't know anything about this group - please reply to me, not
 the group, since I don't subscribe...)

I'm wondering about the use of FASYNC with fcntl on unix bsd systems.
tty(4) says that it only works for terminals, but I think it actually
works for sockets as well (I looked at the code).  Does anyone know
for sure?

My main question is this: Does the AT&T versions of UNIX (not v7, but
SysIII/V) have anything like FASYNC?  I'm trying to figure out how to do
asyncronous IO on various files (ttys, and pipes), and FASYNC with fcntl is
perfect, but I want to make sure it works for AT&T versions as well.

Thanks.