"only one usage of each socket address is ..."

Thread View: borland.public.cppbuilder.internet.socket

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2 total messages Started by Jon S. Berndt Tue, 16 Jan 2007 05:44

#1525

Author: Jon S. Berndt
Date: Tue, 16 Jan 2007 05:44

13 lines
1536 bytes

Using BC++Builder 3.0 I have a simple app that uses a TServerSocket. I've 
set the Port to 2000 (or whatever) at design time. But, I want to be able to 
change the Port before I really start using the socket. So, I Close() the 
socket, change the Port, then Open() the socket. I get the cryptic error:

"only one usage of each socket address is allowed"

I've found this error is not uncommon through a Google search, but I could 
not find any help with the as it works in the VCL component. Has nayone else 
worked through this problem? I suspect I'm doing something simple (but 
wrong).

Jon

Re: "only one usage of each socket address is ..."

#1429

Author: Remy Lebeau (TeamB)
Date: Tue, 16 Jan 2007 09:18

29 lines
1816 bytes

"Jon S. Berndt" <jsb@hal-pc.org> wrote in message
news:45ac6634$1@newsgroups.borland.com...

> Using BC++Builder 3.0 I have a simple app that uses a TServerSocket.
> I've set the Port to 2000 (or whatever) at design time. But, I want
to be
> able to change the Port before I really start using the socket.

Then do not set the TServerSocket's Active property to true at
design-time.  Set it to false instead, and then set it to true in code
after you have changed the Port.

> So, I Close() the socket

That is unnecessary if the server is not activated in the first place.

> change the Port, then Open() the socket.

You did not say whether you are using the server in blocking or
non-blocking mode.

> I get the cryptic error:

You set the Port to a value that is already in use somewhere else on
the machine.


Gambit

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