GMutex advice needed

[Jeff Franks <jcf tpg com au>]

Hi,

I need some GMutex advice. I have a C++ class that has a GMutex data 
member. At run time there could be anything from one dervied class to 
many derived classes in memory. I'm trying to decide which would be more 
efficient. Should the base class declare the GMutex  data member static 
so that every derived class shares the same mutex or would it be better 
to declare the mutex non-static so that each derived class has its own. 
I was concerned that overhead and performance would be an issue in the 
latter case. Any advice would be a appreciated.

Thanks.
Jeff Franks.