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From: bert hubert <ahu@ds9a.nl>
To: selvakumar nagendran <kernelselva@yahoo.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Finding whether a process blocked while executing a syscall
Date: Thu, 30 Dec 2004 23:13:56 +0100	[thread overview]
Message-ID: <20041230221356.GB15202@outpost.ds9a.nl> (raw)
In-Reply-To: <20041230045236.19022.qmail@web60606.mail.yahoo.com>

On Wed, Dec 29, 2004 at 08:52:36PM -0800, selvakumar nagendran wrote:

>     A process can be blocked while executing a syscall
> in the light of some resources needed. Now, I want to
> find out whether a process has been blocked while
> executing a particular syscall or it has finished it
> successfully? If it was blocked I want to perform some
> operation on it. Can anyone help me regarding this?

This question is fraught with difficulty. For one thing, many many system
calls will block for a short time, which you would probably not describe as
'blocked', even though this was true for a few milliseconds.

You did not entirely specify why you want to do this, there may be better
solutions to your problem.

bert

-- 
http://www.PowerDNS.com      Open source, database driven DNS Software 
http://lartc.org           Linux Advanced Routing & Traffic Control HOWTO

  reply	other threads:[~2004-12-30 22:13 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-12-30  4:52 selvakumar nagendran
2004-12-30 22:13 ` bert hubert [this message]
2004-12-31  6:08   ` Resource unavailabilty on " selvakumar nagendran
2004-12-31  6:08   ` selvakumar nagendran

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