Path: utzoo!attcan!uunet!auspex!guy
From: guy@auspex.auspex.com (Guy Harris)
Newsgroups: comp.unix.wizards
Subject: Re: But I don't wanna do non-blocking I/O...
Message-ID: <3484@auspex.auspex.com>
Date: 15 Jun 90 18:34:05 GMT
References: <397@minya.UUCP> <1990Jun12.203245.5804@virtech.uucp> <407@minya.UUCP>
Organization: Auspex Systems, Santa Clara
Lines: 13

>form, they won't mention the subject; anyway, the code works find on
>Ultrix, since I figured out that PMAX/Ultrix doesn't do non-blocking I/O.

I presume you mean "Ultrix doesn't turn non-blocking mode on if you open
with O_NDELAY", which is, I suspect, correct; Ultrix "started with BSD",
so it does things BSD-style.

>I can hardly wait for the Sys/5.4 release.

At which point the thing to do is probably to completely forget about
O_NDELAY and use O_NONBLOCK instead, since that's in POSIX and there is
therefore at least *some* pressure to make everybody do it the same way;
4.4BSD should also support O_NONBLOCK and do so the same way S5R4 does.