On 2016-07-11 6:44 AM, marcel.taeumel wrote:
> I did try to use stdin and stdout, but it is blocking for an
> empty input.

This sounds like the problems I was having reading from /dev/... files.

Perhaps the OSProcess-nonblocking-style solution I was using there could
also work for this case:
http://lists.squeakfoundation.org/pipermail/squeak-dev/2016-June/190051.html

Regards,
  Tony