[plt-scheme] Re: null-port ? and system*/exit-code

Well,

I'll be using subprocess so that I can ignore the output from the process. :-)

Cheers,

Paulo Matos

On 3/10/07, Paulo J. Matos <pocm at soton.ac.uk> wrote:
> Hello all,
>
> I'm using system*/exit-code but all output from the command is being
> directed to the output-port which I don't want to. I'd prefer having
> it ignored (sent to /dev/null or something). I tried defining a null
> port and using parameterize on the current-output-port. But it didn't
> work:
> (define null-port (make-parameter (make-output-port 'null-port
>                                                       always-evt
>                                                       (lambda (bstr
> soffset eoffset notblock? break?) 0)
>                                                       (lambda () (void)))))
> (parameterize ((current-output-port (null-port)))
>     (display "buh"))
> . user port write: bad result for non-flush write: 0
>
> Any ideas on how to define a null-port or ignore output from command
> in system*/exit-port?
>
> Cheers,
> --
> Paulo Jorge Matos - pocm at soton.ac.uk
> http://www.personal.soton.ac.uk/pocm
> PhD Student @ ECS
> University of Southampton, UK
>


-- 
Paulo Jorge Matos - pocm at soton.ac.uk
http://www.personal.soton.ac.uk/pocm
PhD Student @ ECS
University of Southampton, UK