Re: [Boost-bugs] [Boost C++ Libraries] #5226: weak_ptr in program segfaults after expiring from shared_ptr from dynamically loaded shared library which was destructed and unloaded

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #5226: weak_ptr in program segfaults after expiring from shared_ptr from dynamically loaded shared library which was destructed and unloaded
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-02-24 15:34:54

#5226: weak_ptr in program segfaults after expiring from shared_ptr from
dynamically loaded shared library which was destructed and unloaded
-----------------------------------------------------+----------------------
  Reporter:  Peter Schüller <schueller.p@…>          |       Owner:  pdimov   
      Type:  Bugs                                    |      Status:  new      
 Milestone:  To Be Determined                        |   Component:  smart_ptr
   Version:  Boost Release Branch                    |    Severity:  Problem  
Resolution:                                          |    Keywords:           
-----------------------------------------------------+----------------------

Comment (by pdimov):

 This is expected, sorry. Creating the shared_ptr in the shared library
 instantiates a vtable, which is accessed when the last weak_ptr is
 destroyed. One workaround is to expose a C interface from the shared
 library:

 T * create();
 void destroy( T* );

 and create the shared_ptr in an inline wrapper on the program side:
 shared_ptr<T>( create(), destroy ).

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/5226#comment:2>
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