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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: Sockets Example Sought
Date: Sat, 24 Nov 2012 22:01:34 +0100
Organization: cbb software GmbH
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Date: 2012-11-24T22:01:34+01:00
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On Sat, 24 Nov 2012 12:27:04 -0600, Robert Love wrote:

> The statements about disposing of Data, what does Shutdown_Socket it 
> do? It seems to end my task and never reach the following Close_Socket 
> statement.  If I leave it out, I see Close_Socket execute and the 
> program seems to run fine.

Shutdown_Socket does a graceful disconnection before closing the socket. In
particular it flushes/drops pending data. Under Windows it is important to
call it in order to be able to open another socket for the same port.
Otherwise it may take some considerable time after Close_Socket before the
port becomes free. The effect is that you may experience sporadic "port in
use" errors, e.g. when restarting the program.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de