[boost] Re: [shared_ptr] dealing with shared_ptr and cycles

From: Lorenzo Bettini (bettini_at_[hidden])
Date: 2005-06-07 01:43:08

David Abrahams wrote:
> Can you deal with deallocation of the whole network at once?  It often
> works to maintain the nodes (C objects) in a container like a deque
> and let them link to one another with raw pointers.
> 
> Otherwise you may be in need of a real GC.
> 

I solved the problem in a (probably) not too elegant way: when I know 
that I'm creating objects with mutual dependences say A and B I store 
weak pointers, and I store a shared pointer to A and B into a list.  As 
long as the list survives the weak pointers are still valid.  When I 
want to deallocate everything, all I have to do is to deallocate the 
list.  This worked, and also valgrind says there are no leaks...

Lorenzo

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|  Lorenzo Bettini          ICQ# lbetto, 16080134     |
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