From owner-freebsd-net@FreeBSD.ORG  Thu Dec  6 09:13:46 2012
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
Delivered-To: freebsd-net@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
 by hub.freebsd.org (Postfix) with ESMTP id 8F3E8145;
 Thu,  6 Dec 2012 09:13:46 +0000 (UTC)
 (envelope-from ermal.luci@gmail.com)
Received: from mail-qa0-f47.google.com (mail-qa0-f47.google.com
 [209.85.216.47])
 by mx1.freebsd.org (Postfix) with ESMTP id 2E2538FC15;
 Thu,  6 Dec 2012 09:13:45 +0000 (UTC)
Received: by mail-qa0-f47.google.com with SMTP id a19so546446qad.13
 for <multiple recipients>; Thu, 06 Dec 2012 01:13:45 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
 h=mime-version:sender:date:x-google-sender-auth:message-id:subject
 :from:to:content-type;
 bh=E8vbsDDCOqpkv5xjsDU6z4mwj49/e+EQ5bbcO7jESvg=;
 b=d92GhF2cCOr1PWrHTKxKXYespxbmt7O72XdJQgG4TyCKc7FDXyWCIDrAOx55glhg4D
 VZamewYt/ryvA/UZ+jggdbQFBDAnj5eJNV2lbr2Xsn9HP2lE85X23xZJ6BADjQTvNnss
 Ai8Ti3fm52SrSa1xT1qmw8bI1+c7VhD8l8B1vy5AfboA3FAf8VLuvHcq0rEzkTXx1RtC
 SHo+EwgHAUnqdAeg8ScWa3VqFrCAgOy74gGbKJx+Rr6EJzyYEt/+vxMQSZ6Y54Sn3RdH
 iT2udGTPnjXnTs7hjTCO8HA31dl2gDTaJk3223BoWPJikWkEx+jHlmujkC++w3lazf4p
 2eVw==
MIME-Version: 1.0
Received: by 10.229.201.160 with SMTP id fa32mr356975qcb.16.1354785225309;
 Thu, 06 Dec 2012 01:13:45 -0800 (PST)
Sender: ermal.luci@gmail.com
Received: by 10.49.121.163 with HTTP; Thu, 6 Dec 2012 01:13:45 -0800 (PST)
Date: Thu, 6 Dec 2012 10:13:45 +0100
X-Google-Sender-Auth: 3kSIhFh3XTCevcjAOClVIc3Gmco
Message-ID: <CAPBZQG3T=Mvp80-mhFJJ5QRcv5+3SLwV__2bVgvP1YO=UFVOUA@mail.gmail.com>
Subject: ipfw(4) dynamic states/rules and its callout
From: =?ISO-8859-1?Q?Ermal_Lu=E7i?= <eri@freebsd.org>
To: freebsd-net <freebsd-net@freebsd.org>, freebsd-ipfw@freebsd.org
Content-Type: text/plain; charset=ISO-8859-1
X-Content-Filtered-By: Mailman/MimeDel 2.1.14
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-net>,
 <mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
 <mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 06 Dec 2012 09:13:46 -0000

Hello,

i was looking at ipfw dynamic code for dynamic states/rules and see that it
unconditionally schedules a callout even if there is not work to do.

Wouldn't it be best to reschedule it when there is something to do to avoid
having a useless
callout/event run every time on the system?

Is there any complication i am missing on it!

Regards,
Ermal