[xml] Debugging memory allocation failures...

[Nathanael Noblet <nathanael gnat ca>]

Hello
	So I'm playing around a little with libxml and Apache modules. I have 
a program that I tested out and now I'm playing with it through Apache 
modules. It doesn't quite work. I've done a little debugging by 
printing where I was and some of the elements... Here's what I've done:

I have a generic apache module template created from apxs. It prints 
out a string. or multiple strings. At first what I tried was taking my 
program and calling it from the apache handler function. Partially 
worked. I wanted to use the xmlDocDumpMemory() to get a handle on the 
assembled xml. I always get a null for the xmlChar **out_buffer. So I 
thought perhaps it had something to do with memory allocation of libxml 
conflicting with memory allocation of apache or apr or whatever. but 
when I do the first parse of xmlReadMemory() the doc isn't null. and I 
can use a modified version of print_element_names() to print out to the 
browser the xml element names and attributes etc...

	So how come I can use libxml from my module, but xmlDocDumpMemory 
fails? How can I tell why it failed? Ideas etc...?

--
Nathanael D. Noblet
Gnat Solutions
204 - 131 Gorge Road E
Victoria, BC V9A 1L1

T/F 250.385.4613

http://www.gnat.ca/