From mboxrd@z Thu Jan  1 00:00:00 1970
From: Fabio Fantoni <fabio.fantoni@m2r.biz>
Subject: Problem about usleep function in
	tools/hotplug/Linux/xendomains.in
Date: Mon, 16 Mar 2015 12:00:36 +0100
Message-ID: <5506B7D4.80901@m2r.biz>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"; Format="flowed"
Content-Transfer-Encoding: 7bit
Return-path: <xen-devel-bounces@lists.xen.org>
List-Unsubscribe: <http://lists.xen.org/cgi-bin/mailman/options/xen-devel>,
	<mailto:xen-devel-request@lists.xen.org?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xen.org>
List-Help: <mailto:xen-devel-request@lists.xen.org?subject=help>
List-Subscribe: <http://lists.xen.org/cgi-bin/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xen.org?subject=subscribe>
Sender: xen-devel-bounces@lists.xen.org
Errors-To: xen-devel-bounces@lists.xen.org
To: xen-devel@lists.xen.org
Cc: Wei Liu <wei.liu2@citrix.com>, Ian Jackson <ian.jackson@eu.citrix.com>, Ian Campbell <ian.campbell@citrix.com>, Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>
List-Id: xen-devel@lists.xenproject.org

If usleep binary is missed in dom0 xendomains script use its function 
instead but as it is done now always rounds down to the nearest integer 
number, and in case it is less than 1 becomes 0.
So for example in dom0 like those I use (debian) withoutusleep binaryall 
small usleep in the script are null.

A solution can be to replace:
>   usleep()
>   {
>     if [ -n "$1" ]
>     then
>       sleep $(( $1 / 1000000 ))
>     fi
>   }
with:
>   usleep()
>   {
>     if [ -n "$1" ]
>     then
>       sleep $(printf %f "$1e-6")
>     fi
>   }

This case is ok with sleep from gnu coreutils but if there are other 
cases with different sleep command only integer and also without usleep 
that I don't know will be not working.

Can This solution be better that the actual and I must do a patch or 
someone have a better solution?

Thanks for any reply and sorry for my bad english.