[boost] Re: Re: Re:boost::serialization Remarks

From: martin.ecker_at_[hidden]
Date: 2004-05-06 05:03:15

Jeff,

> Although, I am having problems with my 
> VC71 MFC application reporting memory
> leaks of a 24byte block corresponding 
> to each shared_ptr loaded from an
> oarchive.

You probably mean "loaded from an iarchive".
Anyway, due to the modifications I've made in 
our local code base of boost::serialization
I had a bit of a look through the code.

I'm not sure, but the memory leaks you experience 
could possibly be related to the fact that
basic_iarchive::delete_created_pointers is never 
called.
Maybe you can add a call to this function yourself 
somewhere in your application (delete_created_pointers
is a public member function of basic_iarchive)
and see if the memory leaks disappear.
Note that this is just a guess on my part,
as I haven't had time to look at all the code
in detail.

In reference to the example you posted, you
could change it to not use an empty shared_ptr
but actually allocate an object for it
and then change the deserialization code to:

if( lIn.good() )
{
  boost::archive::xml_iarchive ia( lIn );

  ia & boost::serialization::make_nvp( "SomeClass", lSomeClass );
  ia.delete_created_pointers();
}

Regards,
Martin

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