The read_write.* interface seems a bit off

[adrpo]

read_write.c uses malloc instead of GC_malloc.
Do we really need this elaborate interface anymore?
Can't we just send MetaModelica values directly now?
This is afaik used only to send/receive data from external functions compiled as dlls during instantiation and probably during scripting.

[sjoelund.se]

I am unsure if you can send MM values directly; they cross dll boundaries.

[adrpo]

Yes, but is our dll, or isn't?

[sjoelund.se]

Yes, but directly after returning, we free the dll, right? Don't you then (on MSVC) lose the data you allocated, like strings?

[adrpo]

We can do as we do now and when the dll returns we duplicate the data and free the dll, just with metamodelica values.