From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43)
	id 1Kxmsc-00041z-C9
	for qemu-devel@nongnu.org; Wed, 05 Nov 2008 13:13:22 -0500
Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43)
	id 1Kxmsa-00041N-Ut
	for qemu-devel@nongnu.org; Wed, 05 Nov 2008 13:13:21 -0500
Received: from [199.232.76.173] (port=37151 helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1Kxmsa-00041C-PN
	for qemu-devel@nongnu.org; Wed, 05 Nov 2008 13:13:20 -0500
Received: from mx2.redhat.com ([66.187.237.31]:46754)
	by monty-python.gnu.org with esmtp (Exim 4.60)
	(envelope-from <avi@redhat.com>) id 1KxmsZ-0005aK-W1
	for qemu-devel@nongnu.org; Wed, 05 Nov 2008 13:13:20 -0500
Received: from int-mx2.corp.redhat.com (int-mx2.corp.redhat.com [172.16.27.26])
	by mx2.redhat.com (8.13.8/8.13.8) with ESMTP id mA5IDJC2002568
	for <qemu-devel@nongnu.org>; Wed, 5 Nov 2008 13:13:19 -0500
Message-ID: <4911E241.4040308@redhat.com>
Date: Wed, 05 Nov 2008 20:13:21 +0200
From: Avi Kivity <avi@redhat.com>
MIME-Version: 1.0
Subject: Re: [Qemu-devel] Live migration - exec: support to be reintroduced?
References: <geqq17$om7$1@ger.gmane.org>
	<49113157.3090101@codemonkey.ws>	<20081105100546.GA25523@redhat.com>	<491199A2.1040207@redhat.com>
	<4911AA29.1090101@codemonkey.ws>	<20081105143731.GM25523@redhat.com>
	<4911B966.6070000@codemonkey.ws>
In-Reply-To: <4911B966.6070000@codemonkey.ws>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Reply-To: qemu-devel@nongnu.org
List-Id: qemu-devel.nongnu.org
List-Unsubscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/pipermail/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: qemu-devel@nongnu.org

Anthony Liguori wrote:
>
> I think the monitor interface could use improvement.  I think it would 
> look better as:
>
> (qemu) receivefd /path/to/unix/socket
> /* waits until it receives an fd on /path/to/unix/socket */
> fd=10
> (qemu) closefd 10
>
> Then all of the existing uses of fd= can be preserved.
>

Ouch, my fd tags are much better as they don't require the user to read 
the fd number.

> I like the idea of using a temporary socket because you don't have to 
> rely on the monitor being on a unix socket.  This will be especially 
> useful when we can support tunneling the monitor through VNC.

I can't really see a user creating an fd and passing it to qemu through 
a unix domain socket.  This is for management apps.

-- 
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.