[boost] Re: [boost::serialization] - serialization + shared_ptrs

From: Robert Ramey (ramey_at_[hidden])
Date: 2005-04-08 18:04:31

How about posting the relevant code so we can contrast it with Peter's ?

Robert Ramey

martin.ecker_at_[hidden] wrote:
> Hi,
>
> Robert Ramey wrote:
>> For what its worth, my thoughts along these lines are something like:
>>
>> calss helper_base {
>>     virtual ~helper_base() = 0;
>> }
>>
>> class text_iarchive ...
>>     std::list<helpbase *> helper_list;
>>     text_iarchive(){
>>         for(it = help_list.begin();it != helper_list.end();++it)
>>             delete *it;
>>         }
>> };
>
> This is a good idea, although it shouldn't be part of text_iarchive,
> but some base class of it instead, so that all archive types can use
> these 'helpers' as you call them. Some time ago, this was one of our
> feature requests for boost::serialization and we've implemented this
> in our version of the library. We currently call these 'helpers'
> 'archive state', for the lack of a better word.
>
> Basically, this mechanism allows applications to associate arbitrary
> objects with archives that can be accessed from serialization code.
> These objects are basically per-instance variables of an archive.
> This is not only useful for shared_ptr serialization, but for other
> things as well, such as integrating boost::serialization with a
> serialization system of a 3rd party library. Another thing we use this
> mechanism for is when de-serialized objects need to register
> themselves with some kind of global registry or other type of manager
> object. So we strongly encourage adding such a feature to
> boost::serialization.
>
> Best Regards,
> Martin
>
> TAB Austria
> Haiderstraße 40
> 4052 Ansfelden
> Austria
> Phone: [phone]
> Fax: [phone]
> E-mail: martin.ecker_at_[hidden]
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>
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