classes and static variables in shared libraries
- by abel
I am trying to write something in c++ with an architecture like:
App -- Core (.so) <-- Plugins (.so's)
for linux, mac and windows. The Core is implicitly linked to App and Plugins are explicitly linked with dlopen/LoadLibrary to App. The problem I have:
static variables in Core are duplicated at run-time -- Plugins and App have different copys of them.
at least on mac, when a Plugin returns a pointer to App, dynamic casting that pointer in App always result in NULL.
Can anyone give me some explanations and instructions for different platforms please? I know this may seem lazy to ask them all here but I really cannot find a systematic answer to this question.
