lkml.org 
[lkml]   [2003]   [Aug]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: Lockless file reading
Date
Am Wednesday 27 August 2003 02:37 pm schrieb Timo Sirainen:

Hi,

> The question is what can happen if I read() a file that's being
> simultaneously updated by a write() in another process?

The behaviour is undefined.

> 123 over XXX, is it possible that read() returns 1X3 in some conditions?

Yes. The actual order stuff is written to the disk is not guaranteed.

Regards,
-- martin

Dipl.-Phys. Martin Konold
e r f r a k o n
Erlewein, Frank, Konold & Partner - Beratende Ingenieure und Physiker
Nobelstrasse 15, 70569 Stuttgart, Germany
fon: 0711 67400963, fax: 0711 67400959
email: martin.konold@erfrakon.de

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:48    [W:0.102 / U:1.688 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site