>
> I know you were told that it should close the port, but I am not sure
> about it.  It should close the port it opened, but should it also the
> one it got?  This will prevent the same port being processed multiple
> times, which could be annoying.
>

I'm sorry folks, I regretted to give this suggestion, it's not a good idea
after my carefully thought. It's better to let caller decide.

Best regards.