From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 30348 invoked by alias); 4 Jan 2008 10:09:31 -0000 Received: (qmail 30339 invoked by uid 22791); 4 Jan 2008 10:09:30 -0000 X-Spam-Check-By: sourceware.org Received: from smtp.silicomp.fr (HELO smtp.silicomp.fr) (194.51.78.40) by sourceware.org (qpsmtpd/0.31) with ESMTP; Fri, 04 Jan 2008 10:09:07 +0000 Received: from [172.16.6.69] ([172.16.6.69]) by smtp.silicomp.fr (8.13.8/8.12.10) with ESMTP id m04A90sE032268 for ; Fri, 4 Jan 2008 11:09:01 +0100 Message-ID: <477E05BC.5080804@orange-ftgroup.com> Date: Fri, 04 Jan 2008 10:09:00 -0000 From: NGUYEN Thanh SILICOMP User-Agent: Thunderbird 2.0.0.6 (X11/20071022) MIME-Version: 1.0 To: ecos-discuss@ecos.sourceware.org References: <477B6E1E.1080206@orange-ftgroup.com> <20080103114947.GH4550@lunn.ch> In-Reply-To: <20080103114947.GH4550@lunn.ch> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.1.8 (smtp.silicomp.fr [194.51.78.40]); Fri, 04 Jan 2008 11:09:01 +0100 (CET) X-IsSubscribed: yes Mailing-List: contact ecos-discuss-help@ecos.sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: ecos-discuss-owner@ecos.sourceware.org Subject: Re: [ECOS] Application is blocked on the while loop withinbsd_connect() function X-SW-Source: 2008-01/txt/msg00004.txt.bz2 Hi, Yes, for solving the issue, i had to make a non blocking socket for ftpclient. Instead of using fcntl() with F_GETFL or F_SETFL that is not supported at this moment in Ecos, I used ioctl with FIONBIO. My application seems working good now. Once more time, thanks for your helps. NT Andrew Lunn a écrit : > On Wed, Jan 02, 2008 at 11:57:34AM +0100, NGUYEN Thanh SILICOMP wrote: > >> Hi all, >> >> Firstly, happy new year & best wished to all. >> >> I'm working on an application connecting to FTP server using ecos ftpclient >> package. I constate that the application waits for ever on a blocking >> semaphore of cyg_tsleep() function when there is no ftp server available. >> >> In fact, for connecting to ftp server, ftpclient uses connect() that calls >> itself bas_connect() in which the while loop is used for waiting for the >> connection etablishment or an error occurring : >> >> while ((so->so_state & SS_ISCONNECTING) && so->so_error == 0) { >> error = tsleep((caddr_t)&so->so_timeo, PSOCK | PCATCH, >> netcon, 0); >> >> if (error) >> break; >> >> } >> >> The paramter timo of tsleep set to 0 makes cyg_tsleep waiting for a >> blocking semaphore at line 325 of the file synch.c >> (net/tcpip/current/src/ecos/synch.c). And the wait time is usually long and >> triggers the watchdog process in my application. >> >> I would like to know that there is any way to set up a timeout on socket >> before calling connect() so that the application will be able to get out >> this blocking situation ? >> >> Any idea or sugestion will be appreciated. >> > > Take a look at > http://www.developerweb.net/forum/showthread.php?p=13486. You will > need to modify the ftpclient code to implement this scheme for > connect. > > Andrew > > -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss