Re: [wxperl-users] Wx::Perl::ProcessStream

[Johan V. <jvr...@sq...>]

Mark Dootson <mar...@zn...> writes:

> Tests complete OK on MSWin32 / Linux, both with Wx-0.70 + wxWidgets 2.8.3
> available at http://www.wxperl.co.uk/processstream.html
> I'd appreciate any comments and views on code, process and namespace.

As far as I can test, it does exactly what it is supposed to do!

The only problem I had (and that took me hours of debugging) was why
the slave process wouldn't read the data that was written to it using
WriteProcess.

Well, the slave used <STDIN>, and it was just patiently waiting for
the newline before making any input available. I was slighty misled by
the documentation:

       $process->WriteProcess('a message to stdin');

Which I'd suggest to change to:

       $process->WriteProcess("a message to stdin\n");

as a reminder that newlines are important.

When playing Q & A with a slave program I noticed that the response is
not snappy. Apparently there's a 1-second poll interval hidden
somewhere. It would be nice it this could be reduced to 200ms or
something similar. (But it could be hidden deeply in Wx -- didn't
investigate).

For me, this module is exactly what I've needed for a long time!

Thanks,
        Johan