Socket communication

Alex Tweedly alex at tweedly.org
Tue Nov 22 23:04:02 CET 2016


Yes, what Richard said :-)

Don't be misled by the dictionary - the socketID *may* start with an IP 
address, but it doesn't need to - therefore you can simply
   close 8765

without an IP address, to close sockets you have 'accepted' on.

-- Alex.

On 22/11/2016 21:52, Richard Gaskin wrote:
> Ralph DiMola wrote:
>
> > When one enables socket communication on the server side using
> > the form "accept [datagram] connections on port portNumber with
> > message callbackMessage", how do you stop accepting new connections?
> > The LC lesson show closing all open sockets but not how to prevent
> > new connections.
>
> After running "accept", check the openSockets.  You should see one 
> which has no IP address, and is just the port number you're listening 
> on, e.g.:
>
>   accept connections on port 4444 with message "foo"
>   put the openSockets
>
> ..should yield:
>
> 4444
>
> If you then close that you should be unable to receive further 
> connections:
>
>    close socket 4444
>




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