Shared memory and objects with virtual functions

[Alfonso Morra]

Anyone knows why it is not possible (at least without a great deal of
"jiggery-pockery" behind the scenes), to store objects that contain
virtual functions in a shared memory block?

I think I know the answer - possibly something to do with unresolvable
function addresses when mapping from vf table to virtual address - but
this is an uneducated guess at best, on my part. It would be useful to
get a more experienced C++ programmers' view on this.

 

[Ian]

Anyone knows why it is not possible (at least without a great deal of
"jiggery-pockery" behind the scenes), to store objects that contain
virtual functions in a shared memory block?
No.

I think I know the answer - possibly something to do with unresolvable
function addresses when mapping from vf table to virtual address - but
this is an uneducated guess at best, on my part. It would be useful to
get a more experienced C++ programmers' view on this.

Got it in one!

Ian