Re: [xml] LibXml2 Crash in MultiThreaded Windows

["Lav Mehrotra" <l mehrotra zensar com>]

Daniel ,

I have read that page when crash started to occur in Windows
Multithreading environment.

I had used xmlInitParser() & xmlCleanupParser() in my main thread
before creating any threads having LibXml2 APIs.

I had even used the _xmlRMutex , xmlRMutex provided in "threads.h" 
when my synchronization windows primitives ( Critical Sec & Mutexes )
were 
not working .
But xmlRMutex , xmlRMutex , xmlMutexLock/Unlock() ,
xmlRMutexLock/Unlock() APIs were of no help

As far as ........ 
"configure the library accordingly using the --with-threads options"

I am not sure how to achieve the same in windows.  
This step seems as part of the make file in Unix , when the library was
installed in the 1st place.
Can't we achieve this option in the code itself ???

Also it would be grt if u or Igor can spare some of ur valuable time &
go thru this blog......

http://blog.kowalczyk.info/archives/2006/08/07/the-missing-msvcr80dll-st
ory/


Cheers




-----Original Message-----
From: Daniel Veillard [mailto:veillard redhat com] 
Sent: Monday, June 09, 2008 3:59 PM
To: Lav Mehrotra
Cc: xml gnome org; igor zlatkovic com
Subject: Re: [xml] LibXml2 Crash in MultiThreaded Windows

On Mon, Jun 09, 2008 at 12:34:39PM +0530, Lav Mehrotra wrote:
[...]
> I know original LibXml2.dll , iconv.dll & zlib1.dll were all built in
> the old VC6 Environment.
>
> It would be nice , if a LibXml2 VS 2005 Solution project is provided
> along with the source code as Xerces guys have done .

  Well I don't have a Windows licence, even less a developper kit one,
so i rely on contributions in that environment !
> ( In VS2005 Environment Crash Occurs in msvcr80.dll  in void * __cdecl
> _malloc_base (size_t size) Line 154 ........ 
>
> //  allocate memory block
>
> res = _heap_alloc(size);  )

  Sounds like a mismatch between the memory allocator referenced at
compile time and what ends being used at runtime.
  Make 100% sure you followed the recommendations here
    http://xmlsoft.org/threads.html

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