zorba-coders team mailing list archive

[Matthias Brantner <matthias.brantner@xxxxxxxxxx>]

>>> The function alloc_sizeof( rstring<RepType> const &s ) does not count the
>> book-keeping overhead for the various kinds of strings. For example, the
>> default rep (which is used for zstrings) adds 12 bytes oberhead (on 32-bit
>> machines).
>> 
>> I changed it to:
>> 
>>        return s.capacity() + (s.is_shared() ? 0 : sizeof( RepType ));
>> 
> 
> This is fine with me, but there are many other things that are shared and yet their sharing is not taken into account (e.g. qname items in the qname pool, or atomic items shared among the nodes of copied xml trees). I think we should have a consistent solution about what to do with "shared" things. There are several options, but I will let Matthias decide about this.
I would vote for something inconsistent but something that seems to make sense for our use case:
- don't account for QNames at all
- always account for atomic items that are shared among trees
-- 
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