[odb-users] WTL + ODB / or maybe auto_ptr Exception: Invalid
Address specified to RtlValidateHeap
Wayne Hackle
hacklew at hotmail.com
Tue Mar 27 23:09:35 EDT 2012
Thanks but that doesn't work either.
I used a new subject because I think the original one is misleading.
I am using ODB with a VS2008 WTL dialog program.
All the code that works with a Console program, when used with the WTL one, gives this exception:HEAP[scheduler.exe]: Invalid Address specified to RtlValidateHeap
and the stacktrace goes (possibly need to scroll all the way to the bottom where the bold lines are)
msvcr90d.dll!_free_dbg_nolock(void * pUserData=0x00fd35d0, int nBlockUse=1) 行1317 + 0x9 字节 C++ msvcr90d.dll!_free_dbg(void * pUserData=0x00fd35d0, int nBlockUse=1) 行1258 + 0xd 字节 C++ msvcr90d.dll!operator delete(void * pUserData=0x00fd35d0) 行54 + 0x10 字节 C++ odb-mysql-d-1.8-vc9.dll!std::allocator<std::_Tree_nod<std::_Tmap_traits<type_info const *,odb::details::shared_ptr<odb::mysql::statements_base>,odb::details::type_info_comparator,std::allocator<std::pair<type_info const * const,odb::details::shared_ptr<odb::mysql::statements_base> > >,0> >::_Node>::deallocate(std::_Tree_nod<std::_Tmap_traits<type_info const *,odb::details::shared_ptr<odb::mysql::statements_base>,odb::details::type_info_comparator,std::allocator<std::pair<type_info const * const,odb::details::shared_ptr<odb::mysql::statements_base> > >,0> >::_Node * _Ptr=0x00fd35d0, unsigned int __formal=1) 行140 + 0x9 字节 C++ odb-mysql-d-1.8-vc9.dll!std::_Tree<std::_Tmap_traits<type_info const *,odb::details::shared_ptr<odb::mysql::statements_base>,odb::details::type_info_comparator,std::allocator<std::pair<type_info const * const,odb::details::shared_ptr<odb::mysql::statements_base> > >,0> >::_Erase(std::_Tree_nod<std::_Tmap_traits<type_info const *,odb::details::shared_ptr<odb::mysql::statements_base>,odb::details::type_info_comparator,std::allocator<std::pair<type_info const * const,odb::details::shared_ptr<odb::mysql::statements_base> > >,0> >::_Node * _Rootnode=0x00fd35d0) 行1173 C++ odb-mysql-d-1.8-vc9.dll!std::_Tree<std::_Tmap_traits<type_info const *,odb::details::shared_ptr<odb::mysql::statements_base>,odb::details::type_info_comparator,std::allocator<std::pair<type_info const * const,odb::details::shared_ptr<odb::mysql::statements_base> > >,0> >::clear() 行972 C++ odb-mysql-d-1.8-vc9.dll!std::_Tree<std::_Tmap_traits<type_info const *,odb::details::shared_ptr<odb::mysql::statements_base>,odb::details::type_info_comparator,std::allocator<std::pair<type_info const * const,odb::details::shared_ptr<odb::mysql::statements_base> >
>,0> >::erase(std::_Tree<std::_Tmap_traits<type_info const *,odb::details::shared_ptr<odb::mysql::statements_base>,odb::details::type_info_comparator,std::allocator<std::pair<type_info const * const,odb::details::shared_ptr<odb::mysql::statements_base> > >,0> >::const_iterator _First=(0x005438ec class person `RTTI Type Descriptor' {_m_data=0x00000000 _m_d_name=0x005438f4 ".?AVperson@@" },{x_=0x00037af0 }), std::_Tree<std::_Tmap_traits<type_info const *,odb::details::shared_ptr<odb::mysql::statements_base>,odb::details::type_info_comparator,std::allocator<std::pair<type_info const * const,odb::details::shared_ptr<odb::mysql::statements_base> > >,0> >::const_iterator _Last=(0xcdcdcdcd {_m_data=??? _m_d_name=0xcdcdcdd5 <错误的指针> },{x_=0xcdcdcdcd })) 行938 C++ odb-mysql-d-1.8-vc9.dll!std::_Tree<std::_Tmap_traits<type_info const *,odb::details::shared_ptr<odb::mysql::statements_base>,odb::details::type_info_comparator,std::allocator<std::pair<type_info const * const,odb::details::shared_ptr<odb::mysql::statements_base> > >,0> >::_Tidy() 行1421 + 0xaa 字节 C++ odb-mysql-d-1.8-vc9.dll!std::_Tree<std::_Tmap_traits<type_info const *,odb::details::shared_ptr<odb::mysql::statements_base>,odb::details::type_info_comparator,std::allocator<std::pair<type_info const * const,odb::details::shared_ptr<odb::mysql::statements_base> > >,0> >::~_Tree<std::_Tmap_traits<type_info const *,odb::details::shared_ptr<odb::mysql::statements_base>,odb::details::type_info_comparator,std::allocator<std::pair<type_info const * const,odb::details::shared_ptr<odb::mysql::statements_base> > >,0> >() 行541 C++ odb-mysql-d-1.8-vc9.dll!std::map<type_info const *,odb::details::shared_ptr<odb::mysql::statements_base>,odb::details::type_info_comparator,std::allocator<std::pair<type_info const * const,odb::details::shared_ptr<odb::mysql::statements_base> > > >::~map<type_info const *,odb::details::shared_ptr<odb::mysql::statements_base>,odb::details::type_info_comparator,std::allocator<std::pair<type_info const * const,odb::details::shared_ptr<od
b::mysql::statements_base> > > >() + 0x2b 字节 C++ odb-mysql-d-1.8-vc9.dll!odb::mysql::statement_cache::~statement_cache() + 0x2e 字节 C++ odb-mysql-d-1.8-vc9.dll!odb::mysql::statement_cache::`scalar deleting destructor'() + 0x2b 字节 C++ odb-mysql-d-1.8-vc9.dll!std::auto_ptr<odb::mysql::statement_cache>::~auto_ptr<odb::mysql::statement_cache>() 行718 + 0x2d 字节 C++ odb-mysql-d-1.8-vc9.dll!odb::mysql::connection::~connection() 行86 + 0x24 字节 C++ odb-mysql-d-1.8-vc9.dll!odb::mysql::connection_pool_factory::pooled_connection::~pooled_connection() + 0x2b 字节 C++ odb-mysql-d-1.8-vc9.dll!odb::mysql::connection_pool_factory::pooled_connection::`scalar deleting destructor'() + 0x2b 字节 C++ odb-mysql-d-1.8-vc9.dll!odb::details::bits::counter_ops<odb::details::shared_base,odb::mysql::connection_pool_factory::pooled_connection>::dec(odb::mysql::connection_pool_factory::pooled_connection * p=0x000375e0) 行172 + 0x35 字节 C++ odb-mysql-d-1.8-vc9.dll!odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection>::~shared_ptr<odb::mysql::connection_pool_factory::pooled_connection>() 行27 C++ odb-mysql-d-1.8-vc9.dll!odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection>::`scalar deleting destructor'() + 0x2b 字节 C++ odb-mysql-d-1.8-vc9.dll!std::_Destroy<odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection> >(odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection> * _Ptr=0x000382c8) 行60 C++ odb-mysql-d-1.8-vc9.dll!std::allocator<odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection> >::destroy(odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection> * _Ptr=0x000382c8) 行160 + 0x9 字节 C++ odb-mysql-d-1.8-vc9.dll!std::_Destroy_range<std::allocator<odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection> > >(odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection> * _First=0x000382c8, odb::details::shared_ptr
<odb::mysql::connection_pool_factory::pooled_connection> * _Last=0x000382cc, std::allocator<odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection> > & _Al={...}, std::_Nonscalar_ptr_iterator_tag __formal={...}) 行234 + 0xc 字节 C++ odb-mysql-d-1.8-vc9.dll!std::_Destroy_range<std::allocator<odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection> > >(odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection> * _First=0x000382c8, odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection> * _Last=0x000382cc, std::allocator<odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection> > & _Al={...}) 行225 + 0x2f 字节 C++ odb-mysql-d-1.8-vc9.dll!std::vector<odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection>,std::allocator<odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection> > >::_Destroy(odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection> * _First=0x000382c8, odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection> * _Last=0x000382cc) 行1124 + 0x14 字节 C++ odb-mysql-d-1.8-vc9.dll!std::vector<odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection>,std::allocator<odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection> > >::_Tidy() 行1137 C++ odb-mysql-d-1.8-vc9.dll!std::vector<odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection>,std::allocator<odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection> > >::~vector<odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection>,std::allocator<odb::details::shared_ptr<odb::mysql::connection_pool_factory::pooled_connection> > >() 行560 C++ odb-mysql-d-1.8-vc9.dll!odb::mysql::connection_pool_factory::~connection_pool_factory() 行170 + 0x57 字节 C++ odb-mysql-d-1.8-vc9.dll!odb::mysql::connection_pool_factory::`vector deleting
destructor'() + 0x69 字节 C++ odb-mysql-d-1.8-vc9.dll!std::auto_ptr<odb::mysql::connection_factory>::~auto_ptr<odb::mysql::connection_factory>() 行718 + 0x37 字节 C++ odb-mysql-d-1.8-vc9.dll!odb::mysql::database::~database() 行23 + 0xe 字节 C++ scheduler.exe!odb::mysql::database::`scalar deleting destructor'() + 0x2e 字节 C++ scheduler.exe!std::auto_ptr<odb::database>::~auto_ptr<odb::database>() 行718 + 0x36 字节 C++
Would it be a known issue with WTL? Or it seems more likely that it's about auto_ptr destructor?
I googled googled and googled and no luck.
Any help is appreciated.
Hackle
> Date: Tue, 27 Mar 2012 15:28:58 +0200
> From: boris at codesynthesis.com
> To: hacklew at hotmail.com
> CC: odb-users at codesynthesis.com
> Subject: Re: [odb-users] What is the proper practice in using smart pointer in querying
>
> Hi Wayne,
>
> Wayne Hackle <hacklew at hotmail.com> writes:
>
> > The new question is: what is the proper practice in using shared_ptr
> > as default pointer? I ran into very annoying errors that indicate memory
> > management fault (destructors especially).
> > Here is my code:
> >
> > [...]
>
> I don't see anything "illegal" in your code itself (though I don't
> know what the person class looks like). The only problematic part
> is vector<person>. You probably want to store shared pointers there
> instead of copies of the objects. I would also move the session
> closer to where it is actually needed:
>
> auto_ptr<odb::database> db(
> new odb::mysql::database("root",
> "somepassword",
> "somedatabase",
> "localhost"));
>
> vector<shared_ptr<person> > v_person;
>
> {
> session s;
> transaction t(db->begin());
>
> result<person> r(db->query<person>());
> for (result<person>::iterator i(r.begin()); i != r.end(); ++i)
> {
> shared_ptr<person> p(i.load());
> v_person.push_back(p);
> }
>
> t.commit();
> }
>
> Boris
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