Re: [xml] Providing standard COM modules (Was: [xslt] Thread safe?)

[Daniel Veillard <veillard redhat com>]

On Thu, May 02, 2002 at 12:24:15PM +0200, Igor  Zlatkovic wrote:
> >   I have the horrible feeling that most of the libxml2/libxslt Windows
> > users did as a first step of the integration of the library 
> > in their project
> > a COM wrapper. And I also sense that the Right Thing to do at 
> > this point is
> > to try to provide a standardized COM module for those libraries.
> 
> Not most users. Most beginners have tried this, because that is the only
> way they knew. None of these who crossed my way posessed knowledge
> enough to compile a hello-world DLL and load it in a hello-world
> program.
> 
> I can give you the COM wrapper, no problem. This is a time-consuming
> task as libxml has 800+ functions, but it is easy. Everyone can do that.
> I would however be the first one not using it. Speaking to libxml
> through COM (and particularily DCOM) would mean few things:
>  * Memory allocation of data which goes through DCOM may not be done
> using malloc, but through CoTaskMemAlloc() or the system's IMalloc
> interface. The wrapper would have to handle this. 
>  * All character string traffic which goes through DCOM would have to be
> BSTR (length-prefixed Unicode string) format.
> With all that MSXML would perform better, in addition to being
> automatically available on all recent Windows installations.

   Okay, then my feeling may have been totally wrong, precisely
because I have no knowledge all that beast,

> Just to add that Microsoft's current staregy is discouraging any further
> use of COM. They now put all their expectations in .NET and the defeat
> of Java :-)

  C# bindings will be next to Schemas in my roadmap so far.

> > Maybe I'm just
> > totally off-track w.r.t. what COM is or the possibility of agreeing on
> > a common object model, in that case feel free to hit me with your
> > preferred clue bat !
> 
> I'll post another message now to clear the situation... :-)

  Thanks a lot !

Daniel

-- 
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