First of all, if you use fixed_managed_shared_memory, you want to specify the same base address in ever process, otherwise, you're code won't work.

Is it enough to create the segment with the same name in each process :

eg a call to the line below in each process :

fixed_managed_shared_memory segment(open_or_create,"sharedPtrSharedMemoryTest", 2048);

You solve your issue, I'm afraid you will need to build a table of pointers to destructors indexed by a unique number per type (the same number in all processes), so that when the base class destructor is called, it makes a lookup in the table and calls the correct "destructor" function. Not easy, but I think it's the only way. Your hierarchy couldn't be expanded by users (they need to register their destructor). It's a limited type of "polymorphism".

I understand your solution but I don't know wich method I have to redefine.

Because the problem is not really the destructor, but rather the "deleter".

And I don't find how to redefine (and register) the base deleter to call the derived one.

Could you help me (again...)

Regards,

Gaëtan