Tcl - [SWIG]TargetLanguageCallbacks

Author

[SWIG]TargetLanguageCallbacks

Christoph Hörterer

2004-07-05, 3:58 pm

Hi,
I found this in the SWIG Wiki:
http://www.signal6.com/cgi-bin/wiki...nguageCallbacks

Now, I don't know how to adapt this to Tcl. Can anyone help me with this?
My problem, is also addressed on another wiki page, within the very
first question, but the answer wasn't very useful to me.
http://www.signal6.com/cgi-bin/wiki.pl?SwigFaqCallbacks

My situation: I have a Tcl(Main)programm which loads a dll. Within this
dll one function evokes a callback. This callback should be written in
Tcl. But this is not possible with SWIG by default. Perhaps, somebody
could help me.
I would be glad for any advice.

Thanks, Christoph

Ashok P. Nadkarni

2004-07-06, 3:57 am

You might try asking on the SWIG mailing list
http://mailman.cs.uchicago.edu/mailman/listinfo/swig

/Ashok

Christoph Hörterer <news@pofi.de> wrote in message news:<2kth16F4uul0U1@uni-berlin.de>...
> Hi,
> I found this in the SWIG Wiki:
> http://www.signal6.com/cgi-bin/wiki...nguageCallbacks
>
> Now, I don't know how to adapt this to Tcl. Can anyone help me with this?
> My problem, is also addressed on another wiki page, within the very
> first question, but the answer wasn't very useful to me.
> http://www.signal6.com/cgi-bin/wiki.pl?SwigFaqCallbacks
>
> My situation: I have a Tcl(Main)programm which loads a dll. Within this
> dll one function evokes a callback. This callback should be written in
> Tcl. But this is not possible with SWIG by default. Perhaps, somebody
> could help me.
> I would be glad for any advice.
>
> Thanks, Christoph

Christoph Hörterer

2004-07-06, 3:57 am

I tried, but my postings didn't appear.

Ashok P. Nadkarni wrote:
[color=darkred]
> You might try asking on the SWIG mailing list
> http://mailman.cs.uchicago.edu/mailman/listinfo/swig
>
> /Ashok
>
> Christoph Hörterer <news@pofi.de> wrote in message news:<2kth16F4uul0U1@uni-berlin.de>...
>

Bob Techentin

2004-07-12, 4:05 pm

"Christoph Hörterer" <news@pofi.de> wrote
> My situation: I have a Tcl(Main)programm which loads a dll. Within
> this dll one function evokes a callback. This callback should be
> written in Tcl. But this is not possible with SWIG by
> default. Perhaps, somebody could help me. I would be glad for any
> advice.
>
> Thanks, Christoph

You could save "interp" in a static variable in the %init% section of
your SWIG file. Then just have a function that calls
Tcl_Eval(interp,"callback");

Bob
--
Bob Techentin techentin.robert@NOSPAMmayo.edu
Mayo Foundation (507) 538-5495
200 First St. SW FAX (507) 284-9171
Rochester MN, 55901 USA http://www.mayo.edu/sppdg/

Christoph Hörterer

2004-07-23, 8:57 am

Bob Techentin schrieb:
> "Christoph Hörterer" <news@pofi.de> wrote
>
>
>
> You could save "interp" in a static variable in the %init% section of
> your SWIG file. Then just have a function that calls
> Tcl_Eval(interp,"callback");
>
> Bob

Hi,
How should this look like?
Something like that:
> %init %{
>
> static Tcl_Interp* interp;
>
> %}

I know this is not right, because I'm getting this error message,
when compiling:
> error: identifier "interp" is undefined

I would be glad if you could help me with this.

Christoph

Bob Techentin

2004-07-28, 9:08 pm

"Christoph Hörterer" <chh@mmk.ei.tum.de> wrote[color=darkred]
> Bob Techentin schrieb:
of[color=darkred]
>
> How should this look like?
> Something like that:
>
> I know this is not right, because I'm getting this error message,
> when compiling:

The variable "interp" is already defined in the function that includes
your %init code. So you want to declare a static variable with a
different name, something like

%init %{

static Tcl_Interp* myInterp;
myInterp = interp ;

%}

But the %init code is inside a function, so you may need a combination
of global and static to make it work properly with your callbacks.

Bob
--
Bob Techentin techentin.robert@NOSPAMmayo.edu
Mayo Foundation (507) 538-5495
200 First St. SW FAX (507) 284-9171
Rochester MN, 55901 USA http://www.mayo.edu/sppdg/

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