Re: O_NONBLOCK setting "leak" outside of a process??
From: Roland Kuhn
Date: Fri Feb 02 2007 - 10:05:12 EST
Hi Guillaume!
On 2 Feb 2007, at 14:48, Guillaume Chazarain wrote:
2007/2/2, Roland Kuhn <rkuhn@xxxxxxxxxxxxxxxxxxxxxxxxx>:
That's a bug, right?
No, if you want something like: (echo toto; date; echo titi) > file
to work in your shell, you'll be happy to have the seek position
shared in the processes.
As a naive user I'd probably expect that each of the above adds to
the output, which perfectly fits the O_APPEND flag (to be set by the
shell, of course).
The immediate point was about the flags, though, and having
O_NONBLOCK on or off certainly is a _design_ choice when writing a
program. If I remove O_NONBLOCK, I have a right to expect that I/O
functions do not return EAGAIN!
Ciao,
Roland
--
TU Muenchen, Physik-Department E18, James-Franck-Str., 85748 Garching
Telefon 089/289-12575; Telefax 089/289-12570
--
CERN office: 892-1-D23 phone: +41 22 7676540 mobile: +41 76 487 4482
--
Any society that would give up a little liberty to gain a little
security will deserve neither and lose both. - Benjamin Franklin
-----BEGIN GEEK CODE BLOCK-----
Version: 3.12
GS/CS/M/MU d-(++) s:+ a-> C+++ UL++++ P+++ L+++ E(+) W+ !N K- w--- M
+ !V Y+
PGP++ t+(++) 5 R+ tv-- b+ DI++ e+++>++++ h---- y+++
------END GEEK CODE BLOCK------
Attachment:
smime.p7s
Description: S/MIME cryptographic signature
Attachment:
PGP.sig
Description: This is a digitally signed message part