From: Joe Korty <joe.korty@ccur.com>
To: "Richard B. Johnson" <root@chaos.analogic.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] [2.5] Non-blocking write can block
Date: Thu, 5 Jun 2003 17:46:38 -0400 [thread overview]
Message-ID: <20030605214638.GA19229@tsunami.ccur.com> (raw)
In-Reply-To: <Pine.LNX.4.53.0306051513570.2008@chaos>
On Thu, Jun 05, 2003 at 03:15:19PM -0400, Richard B. Johnson wrote:
> On Thu, 5 Jun 2003, Mike Fedyk wrote:
> > Also, what do other UNIX OSes do? Do they have seperate semantics for
> > O_NONBLOCK and O_NDELAY? If so, then it would probably be better to change
> > O_NDELAY to be similar and add another feature at the same time as reducing
> > platform specific codeing in userspace.
>
> My Sun thinks that O_NDELAY = 0x04 and O_NONBLOCK = 0x80, FWIW.
Same here on my AT&T System V ES/MP box.
As far as semantics go, the two appear to be identical except that
O_NDELAY always returns 0 on a blocking condition while O_NONBLOCK
usually returns EAGAIN and only occasionally returns 0.
Joe
[cc list trimmed]
next prev parent reply other threads:[~2003-06-05 21:33 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-05 0:04 Ed Vance
2003-06-05 0:19 ` Davide Libenzi
2003-06-05 18:34 ` Mike Fedyk
2003-06-05 19:15 ` Richard B. Johnson
2003-06-05 21:46 ` Joe Korty [this message]
2003-06-06 0:13 ` Davide Libenzi
-- strict thread matches above, loose matches on Subject: below --
2003-06-06 12:13 Nicholas Berry
2003-06-04 19:36 Hua Zhong
2003-06-04 20:09 ` Hua Zhong
[not found] <20030604172026$296c@gated-at.bofh.it>
[not found] ` <20030604175013$3a4d@gated-at.bofh.it>
2003-06-04 19:13 ` Ben Pfaff
2003-06-04 0:58 P. Benie
2003-06-04 5:53 ` Christoph Hellwig
2003-06-04 14:35 ` Linus Torvalds
2003-06-04 14:58 ` P. Benie
2003-06-04 16:47 ` Alan Cox
2003-06-04 17:57 ` Linus Torvalds
2003-06-04 19:46 ` P. Benie
2003-06-04 19:56 ` Linus Torvalds
2003-06-04 20:48 ` P. Benie
2003-06-11 0:19 ` Robert White
2003-06-04 20:43 ` Hua Zhong
2003-06-04 23:42 ` Russell King
2003-06-04 23:47 ` Davide Libenzi
2003-06-04 21:29 ` Alan Cox
2003-06-04 17:14 ` Hua Zhong
2003-06-04 17:41 ` Linus Torvalds
2003-06-04 18:44 ` Hua Zhong
2003-06-04 18:47 ` P. Benie
2003-06-04 19:23 ` P. Benie
2003-06-04 19:20 ` Linus Torvalds
2003-06-04 17:53 ` Mike Dresser
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