My colleagues and I needed a good customisable mainloop that is usable from 
both Perl and C, and we found that the Tcl mainloop serves our needs. But 
perl-tcl did not provide access to the necessary functions.

Consequently, after talking with Vadim, I added a few routines to Tcl.xs, with 
the corresponding documentation in Tcl.pm and a test named t/mainloop.t. The 
routines provided are DoOneEvent, CreateChannelHandler, DeleteChannelHandler, 
MakeFileHandler, CreateTimerHandler and DeleteTimerHandler.

From that point, I have a proposal and a question:

- the proposal: IntuiLab is willing to share that code under the same license 
terms as perl-Tcl. I have prepared a patch based on Tcl-0.87 that I can send 
upon request.

- the question: our next step was to integrate perl-Tk with that mainloop 
(yes, I know. But our code relies on perl-Tk and we can't change that easily). 
And we discovered that perl-Tk and Tcl *cannot* be used at the same time: they 
implement functions with the same name that do different things. Consequently, 
we have had to build our own versions of Tcl and perl-Tcl with all identifiers 
changed :-( Any suggestion for a better solution? We are willing to share the 
bridge code (implemented as a Tcl notifier), but in the present circumstances 
it is pretty useless to anyone outside us.

Cheers,

Stéphane




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