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Article #5166Re: Timeout for TClientServer in ctBlocking ...
From: Remy Lebeau (TeamB)
Date: Tue, 12 Oct 2004 17:59
Date: Tue, 12 Oct 2004 17:59
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"Vladimir Stefanovic" <spam@not.needed> wrote in message news:416c0915@newsgroups.borland.com... > When the PC in LAN is switched-on but the ServerSocket > is not listening, the waiting time is not *so* long. The socket stack on that machine is still running even if no sockets are listening. It knows that no sockets are listening, so it can return an error reply immediately. > Can I somehow check (ping) if the PC in LAN is active at > all, so that I can know in advance not to try to connect at all. Pings are not reliable, especially nowadays with firewalls and such. Pings can actually be blocked, thus giving the appearance of nothing being there when there really is. If you use a ping to decide whether to connect, then you may not end up connecting at all when you really could. Gambit
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X-Google-Thread: 11508e,230ad6ee6657e1fc X-Google-Attributes: gid11508e,public X-Google-Language: ENGLISH,ASCII-7-bit From: "Remy Lebeau \(TeamB\)" <no.spam@no.spam.com> Newsgroups: borland.public.cppbuilder.internet.socket References: <416bede7@newsgroups.borland.com> <416bfa1e@newsgroups.borland.com> <416c06f0$1@newsgroups.borland.com> <416c0915@newsgroups.borland.com> Subject: Re: Timeout for TClientServer in ctBlocking ... Date: Tue, 12 Oct 2004 10:59:21 -0700 Lines: 23 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1409 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 NNTP-Posting-Host: 68.69.17.41 Message-ID: <416c1b6c$1@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1097603948 68.69.17.41 (12 Oct 2004 10:59:08 -0700) Path: arc1-ca.pugleaf.net!g2news1.google.com!news1.google.com!news.glorb.com!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!newsgroups.borland.com!not-for-mail