Andreas,
Thank you for your answer.
I also thought that the way is hacking the VM, but didn't
want to miss something to learn about plugins...
I need to port sqAPIs to 3.7 vm
because we are trying to have access to APIs for
squeak under pocketPC (FFI requires assembler
code as I know, and is not compatible to any other smalltalk)
to be used in computer vision projects (like the projects
presented in
http://www.aleReimondo.com.ar/OpenCV including realtime face detection, image processing,
object detection and tracking, implemented using
visual smalltalk).
It is a little step in our plan, and this is the reason to make
it as easy as possible.
thank you again for the help,
Ale.
----- Original Message -----
From: "Andreas Raab" <
[hidden email]>
To: "The general-purpose Squeak developers list"
<
[hidden email]>
Sent: Monday, April 17, 2006 4:55 PM
Subject: Re: Access to primitiveTable from a plugIn
> Hi -
>
> I don't think it's a good idea to expose the primitive table to plugins
> (either internal or external) in a standardized way. After all, getting
> away from numbered primitives is exactly why we introduced named
> primitives and plugins to begin with.
>
> Since it seems to me that the tradeoff in this discussion is to either
> change the VM to make it work with the plugin or to change the plugin to
> make it work with the VM I'd strongly opt for the latter, e.g., update
> the plugin by the proper means to work with the latest VMs.
>
> If that's too much time for you to invest, you can build custom VMs
> simply by doing something like
>
> extern void* primitiveTable[].
>
> in your code, which requires the plugin to be internal but will work
> short term.
>
> Cheers,
> - Andreas
>
> Alejandro F. Reimondo wrote:
> > Hi Andreas,
> >
> >> What do you need that access for?
> > I need to add/reserve 3 primitive numbers and want
> > to be setup by the plugin when loaded.
> >
> > Doing that way porting sqAPIs from VM 1.3 to 3.7
> > (as an internal plugin) can be realized without risk of
> > adding bugs to the implementation.
> >
> > thanks in advance,
> > Ale.
> > p.d.: I think I can´t use named primitives because the
> > implementation uses the first literal of the method
> > to store information, as also do sqAPIs.
> >
> > ----- Original Message -----
> > From: "Andreas Raab" <
[hidden email]>
> > To: "The general-purpose Squeak developers list"
> > <
[hidden email]>
> > Sent: Monday, April 17, 2006 3:44 PM
> > Subject: Re: Access to primitiveTable from a plugIn
> >
> >
> >> Alejandro F. Reimondo wrote:
> >>> How must a plugIN add/replace numbered primitives
> >>> in the interpreter's table?
> >> Not at all, e.g., there is no access to the primitive table by plugins.
> >> What do you need that access for?
> >>
> >> Cheers,
> >> - Andreas
> >>
> >
> >
> >
>
>
Locked
