[omniORB] Having trouble with CORBA::Object::_PD_repoId

[Raikanta Sahu]

I am having problem with the client side of my application when I use the
function CORBA::ORB::string_to_object. The problem seems to be that
::CORBA::Object::_PD_repoId is not resolved/initialized properly when the
DLL is loaded.

omniORB version: 4.1.1
platform: Windows XP, vc7, linked with *_rt.dll

When I try to examine the value of CORBA::Object::_PD_repoId while
examining the stack, I get the following message.

>? ::CORBA::Object::_PD_repoId
CXX0017: Error: symbol "::CORBA::Object::_PD_repoId" not found
>

The function where this occurs looks like:

void*
_objref_ORB_ProEShell::_ptrToObjRef(const char* id)
{
   if( id == ::ORB_ProEShell::_PD_repoId )
      return (::ORB_ProEShell_ptr) this;
   if( id == ::ORB_ProEApp::_PD_repoId )
      return (::ORB_ProEApp_ptr) this;


   if( id == ::CORBA::Object::_PD_repoId )
      return (::CORBA::Object_ptr) this;

   if( omni::strMatch(id, ::ORB_ProEShell::_PD_repoId) )
      return (::ORB_ProEShell_ptr) this;
   if( omni::strMatch(id, ::ORB_ProEApp::_PD_repoId)
     )
      return (::ORB_ProEApp_ptr) this;


   if( omni::strMatch(id,
            ::CORBA::Object::_PD_repoId) )
      return (::CORBA::Object_ptr) this;

   return 0;
}

The exception occurs in the fuction omni::strMatch. In that function, the
pointers are derefernced. Since the second argument passed to omni:strMatch
is not defined, it is understandable why the exception occurs.

When I looked at the declaration of ::CORBA::Object::_PD_repoId, in
CORBA_ORB.h, it looks like:

  static _core_attr const char* _PD_repoId;

I imagine _core_attr is expected to translate to something like "dllexport"
when building the omniORB library(ies), and to "dllimport" when building
applications. I suspect that translation to "dllexport" does not happen
when building the omniORB libraries.

Has anybody encountered this problem before? Is there a workaround or a fix
for the problem?

-- 

+------------------------------------------+--------------------------+
| Raikanta Sahu                            | phone: (505) 323-2525    |
| raikanta.sahu at cometsolutions.com         |   FAX: (505) 292-5191    |
+------------------------------------------+--------------------------+