From owner-freebsd-net@FreeBSD.ORG  Thu May  1 18:07:25 2014
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
Delivered-To: freebsd-net@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id C2A725D1
 for <freebsd-net@freebsd.org>; Thu,  1 May 2014 18:07:25 +0000 (UTC)
Received: from mail-n.franken.de (drew.ipv6.franken.de
 [IPv6:2001:638:a02:a001:20e:cff:fe4a:feaa])
 (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits))
 (Client CN "mail-n.franken.de", Issuer "Thawte DV SSL CA" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id 8433E1989
 for <freebsd-net@freebsd.org>; Thu,  1 May 2014 18:07:25 +0000 (UTC)
Received: from [192.168.1.102] (p54819FCD.dip0.t-ipconnect.de [84.129.159.205])
 (Authenticated sender: macmic)
 by mail-n.franken.de (Postfix) with ESMTP id 465F21C104626;
 Thu,  1 May 2014 20:07:21 +0200 (CEST)
Content-Type: text/plain; charset=us-ascii
Mime-Version: 1.0 (Mac OS X Mail 7.2 \(1874\))
Subject: Re: How to create an SCTP association
From: Michael Tuexen <Michael.Tuexen@lurchi.franken.de>
In-Reply-To: <20140501124908.GA50185@cicely7.cicely.de>
Date: Thu, 1 May 2014 20:07:19 +0200
Content-Transfer-Encoding: 7bit
Message-Id: <ABDB118B-FCB7-453C-B7FF-CDE7AF303333@lurchi.franken.de>
References: <20140501124908.GA50185@cicely7.cicely.de>
To: ticso@cicely.de
X-Mailer: Apple Mail (2.1874)
Cc: freebsd-net@freebsd.org, Bernd Walter <ticso@cicely7.cicely.de>
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.17
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, 01 May 2014 18:07:25 -0000

On 01 May 2014, at 14:49, Bernd Walter <ticso@cicely7.cicely.de> wrote:

> I have an SOCK_SEQPACKET socket and want to setup an association
> without sending a message.
Just call connect() or sctp_connectx().
> 
> The background is that I want to keep the round-trip times of peer
> servers.
> I've enabled regular heartbeat and can use SCTP_GET_PEER_ADDR_INFO
> to get the RTT.
> But in case a host is down or services are restarted I don't have
> an association to ask, so I will need some way to (re)establish
> associations.
> This is done in a different thread as the normal socket operation,
> which uses EOR to write.
> If I send a (dummy)message to the socket I would have to add a mutex
> to not disturb the sending thread.
Does the above solve your issue?

Best regards
Michael
> 
> -- 
> B.Walter <bernd@bwct.de> http://www.bwct.de
> Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.
> _______________________________________________
> freebsd-net@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-net
> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
>