Hi Klaus,
The bottom line is that you can not use a C++ instance method as a
callback method. The reason is that in C++, the "this" pointer is
passed as the first argument to each instance method. The C code in
pjsip has no way to pass a "this" pointer to your call back.
You have 2 alternatives, both of which are effectively the same thing.
1) in C++, write static methods and pass their addresses as the callback
methods.
2) write some C code methods and use their addresses as the callback
methods.
Note that in C++, a static methods does not use a "this" pointer, so
it is effectively the same thing as a C method.
Regards,
Paul
Klaus Darilion wrote:
> Hi!
>
> I'm trying to add pjsip to a QT C++ application. This gives me headaches
> as I have no clue how to make callbacks in C++. There are lots of
> different approaches (static member function as wrapper, templates ...).
>
> I tried the static member function wrapper with logging callbacks but my
> application crashes ~50%.
>
> I wonder if someone have practical tips for my how to connect pjsip's
> callbacks to member functions.
>
> thanks
> klaus
>
> _______________________________________________
> Visit our blog: http://blog.pjsip.org
>
> pjsip mailing list
> pjsip at lists.pjsip.org
> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org
>
>
