Re: [xml] LibXml2 Crash in MultiThreaded Windows
- From: "Lav Mehrotra" <l mehrotra zensar com>
- To: <veillard redhat com>
- Cc: Rob Richards <rrichards ctindustries net>, xml gnome org, igor zlatkovic com
- Subject: Re: [xml] LibXml2 Crash in MultiThreaded Windows
- Date: Wed, 11 Jun 2008 12:32:47 +0530
Thanks a lot , it solved the crash !!
I was stucked for many days on it , & quite frustrated to the extent
that I have to re-write my whole portable XML Reader / Writer in Xerces
Also many thanks to Igor & Rob
I am now calling
In my primary thread main() only.
( Without even these 2 the code works & there is no crash )
Xerces has the equivalent
You are allowed to call XMLPlatformUtils::Initialize() and
XMLPlatformUtils::Terminate multiple times, but each call to
XMLPlatformUtils::Initialize() must be matched with a call to
Strangely this problem didn't show up in MultiThreaded UNIX environment
where call to xmlCleanupParser(); was within UNIX POSIX pThread's.
What I liked abt LibXml2 APIs were their simplicity
& in contrast
I had to achieve the counterpart of 1 LibXml2 C API in Xerces using many
C++ APIs or Classes (which of course has an OO tinge to it).
I have worked earlier on MS-XML too
( which can be portable provided COM is universally implemented on all
UNIX variants )
but working on LibXML2 Library was really a breeze for me.
Thanks again for ur valuable inputs.
From: Daniel Veillard [mailto:veillard redhat com]
Sent: Tuesday, June 10, 2008 8:02 PM
To: Lav Mehrotra
Cc: Rob Richards; xml gnome org; igor zlatkovic com
Subject: Re: [xml] LibXml2 Crash in MultiThreaded Windows
On Tue, Jun 10, 2008 at 06:35:10PM +0530, Lav Mehrotra wrote:
NOTE : Within my thread I create Reader / Writer object on Stack so it
goes out of scope when the thread fun exits , calls Dtor of Reader /
Writer object , which does
If you call xmlCleanupParser from the threads on concurrent accesses
are garanteed to crash...
Read the docs. Looks at the many time i posted about the issue !
Red Hat Virtualization group http://redhat.com/virtualization/
Daniel Veillard | virtualization library http://libvirt.org/
veillard redhat com | libxml GNOME XML XSLT toolkit
http://veillard.com/ | Rpmfind RPM search engine http://rpmfind.net/
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