Re: [xml] IO callbacks are not thread-safe

On Thu, Apr 02, 2009 at 05:33:54PM +0200, Petr Pajas wrote:
I think the original reason for this was that when Perl bindings are 
used with mod_perl, there may be other (non-Perl) components using 
the global callbacks differently; that's why XML::LibXML Perl 
module tries to clean after itself (restoring whatever was in the 
callbacks previously). Is there any other way around this?

  Urgh ..
Why do they need global URI handler registration ?
The cleanest wey would be to always use the I/O parser context creation
routine like xmlCtxtReadIO/xmlReadIO... and define the I/O handlers
to map to whatever is being registered globally now. Though the
limitation is for external subset resources, that doesn't work well.
Maybe we need to make those per-thread but this is getting ugly !


Daniel Veillard      | libxml Gnome XML XSLT toolkit
daniel veillard com  | Rpmfind RPM search engine | virtualization library

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