Article View: borland.public.cppbuilder.internet.socket
Article #718Re: 'could not bind socket' error
From: Dennis Jones
Date: Tue, 20 Nov 2007 20:44
Date: Tue, 20 Nov 2007 20:44
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2830 bytes
"Remy Lebeau (TeamB)" <no.spam@no.spam.com> wrote in message news:474342ce@newsgroups.borland.com... > > "Dennis Jones" <nospam@nospam.com> wrote in message > news:47431d9f$1@newsgroups.borland.com... > >> I have an application which frequently fails to start with the message: >> >> "Could not bind socket. Address and port are already in use." > > That happens when you specify a local IP/Port to bind the socket to before > opening it, but the IP/Port is already in use by another socket. Right, I am pretty sure I understand what the error means, I just don't understand *why* I am getting it. >> The application had not been running for at least a day, and no >> other server applications use the same port. > > So this error is happening for a server socket and not a clien socket? Is > there anotehr instance of the app already running? Yes, that is correct, it is a server socket. But no, there are no other instances of the application running, which is why the I'm asking the question. (the application uses a mutex to prevent multiple instances) >> I have checked "netstat -a" for any indication that the port is in >> use, but am never able to find anything. > > Why not? If I knew the answer to that, I wouldn't be asking the question in the first place!! That's the whole point..."netstat -a" does not show any application instances that reference the port number I am trying to open in my server. So if netstat does *not* show the port is in use, why would the server socket complain that it *is* in use? That's the essence of my question. I can find no indication whatsoever that the port is in use, yet the server complains. How can that be? - Dennis
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X-Google-Thread: 11508e,128d041863311899 X-Google-Attributes: gid11508e,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit From: "Dennis Jones" <nospam@nospam.com> Newsgroups: borland.public.cppbuilder.internet.socket References: <47431d9f$1@newsgroups.borland.com> <474342ce@newsgroups.borland.com> Subject: Re: 'could not bind socket' error Date: Tue, 20 Nov 2007 12:44:20 -0800 Lines: 45 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2900.3138 X-RFC2646: Format=Flowed; Response X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 NNTP-Posting-Host: 71.245.109.58 Message-ID: <47434723$1@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1195591459 71.245.109.58 (20 Nov 2007 12:44:19 -0700) Path: arc1-ca.pugleaf.net!g2news1.google.com!news3.google.com!feeder3.cambrium.nl!feeder2.cambrium.nl!feed.tweaknews.nl!193.201.147.86.MISMATCH!news.astraweb.com!border1.a.newsrouter.astraweb.com!feeder.news-service.com!newsfeed.freenet.de!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!newsgroups.borland.com!not-for-mail