RE: [help-cgicc] Debug / Release Problem

[Stephen F. Booth]

I realize I'm very little help since I don't own a Windows compiler, but
something comes to mind that I believe I've seen in the past.  I
remember building a library and seeing similar problems when switching
from Debug to Release or vice-versa when I was linking to the wrong
version of some system library.  Perhaps the cgicc project files are
linking to the release libs, so on Debug mode there is a multithreading
issue?

That's all I can think of.  Maybe someone who actually develops on
Windows can help.

-Stephen

> -----Original Message-----
> From: address@hidden [mailto:address@hidden On
Behalf
> Of address@hidden
> Sent: Wednesday, October 30, 2002 8:15 AM
> To: address@hidden
> Subject: [help-cgicc] Debug / Release Problem
> 
> I am working on a CGI application that takes a few input parameters,
does
> some processing and outputs the result as XML stream back to the CGI
> interface.
> The actual internal workings are more or less irrelevant.
> 
> The application works fine in the release version, but in the debug
> version,
> the result apparently is sent to the CGI interface, but doesn't seem
to
> arrive there.
> 
> I have managed to track down this issue to a single line of code. When
> this
> line is active, the debug version doesn't work, when it is commented
out,
> it
> DOES work.
> 
> I've got a hard time believing that, but see for yourself:
> 
> [snip]
> const_form_iterator itStartCountry = cgi.getElement ("StartCountry");
> if (itStartCountry == (*cgi).end () || itStartCountry->isEmpty ())
> {
>    writer.error2XMLReply ("Parameter 'StartCountry' is missing.");
>    return 0;
> }
> else strStartCountry = **itStartCountry;
> [snip]
> 
> (writer.error2XMLReply is just a XML writer that wraps the error
message
> into XML...)
> 
> The code line in question is the last one ("else strStartCountr ...")
I
> don't really think I am doing anything special here, but the error is
> completely
> reproducible on multiple systems all running W2K / Apache 2.0 / IE6 /
> cgicc
> 3.2
> 
> Just to make that absolutely clear: The application doesn't crash, it
> doesn't throw any exceptions (as far as I can tell...), the Apache
error
> logs don't
> have any entries. The only symptoms in the debug versions are that
instead
> of displaying the XML results (like in the release version), the
browser
> keeps
> 'waiting' (displaying the rotating logo) and after some time, times
out.
> The
> CGI application stays in memory as a non-killable process.
> 
> I can't get build the cgicc library with logging support enabled, so
there
> is no chance on hints from there. I don'T know either how to run a CGI
> application in debug mode (so I can step through it...), but maybe
someone
> has a tip
> concernign that...
> 
> Any ideas ?!?
> 
> TIA
> 
> Steve
> 
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