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#include "HelloS.h"
class Hello_impl :
virtual public POA_Hello
{
public:
Hello_impl ()
{
ACE_DEBUG ((LM_DEBUG, "Hello_impl::Hello_impl()\n"));
}
~Hello_impl ()
{
ACE_DEBUG ((LM_DEBUG, "Hello_impl::~Hello_impl()\n"));
}
virtual void moo (
)
{
}
};
CORBA::ULong
getRefCount (PortableServer::ServantBase * sb)
{
return sb->_refcount_value ();
}
int
ACE_TMAIN(int argc, ACE_TCHAR *argv[])
{
try
{
CORBA::ORB_var orb =
CORBA::ORB_init (argc, argv);
CORBA::Object_var poa_object =
orb->resolve_initial_references("RootPOA");
PortableServer::POA_var poa =
PortableServer::POA::_narrow (poa_object.in ());
if (CORBA::is_nil (poa.in ()))
ACE_ERROR_RETURN ((LM_ERROR,
" (%P|%t) Panic: nil RootPOA\n"),
1);
Hello_impl * h = 0;
ACE_NEW_RETURN (h,Hello_impl, 1);
CORBA::ULong before_act = h->_refcount_value ();
ACE_DEBUG ((LM_DEBUG, "Before activation: %d\n", before_act));
PortableServer::ObjectId_var oid = poa->activate_object (h);
CORBA::ULong after_act = h->_refcount_value ();
ACE_DEBUG ((LM_DEBUG, "After activation: %d\n", after_act));
{
/*
* C++ Language Mapping (formal/03-06-03), section 1.37.3 (Servant
* Memory Management Considerations), first bullet on page 1-136:
*
* POA::id_to_servant returns a Servant. The POA invokes _add_ref
* once on the Servant before returning it; the caller of
* id_to_servant is responsible for invoking _remove_ref on the
* returned servant when it is finished with it.
*/
CORBA::ULong refCountBeforeIdToServant =
h->_refcount_value ();
ACE_DEBUG ((LM_DEBUG, "Before id_to_servant: %d\n", refCountBeforeIdToServant));
PortableServer::ServantBase_var srv = poa->id_to_servant (oid.in());
CORBA::ULong refCountAfterIdToServant =
srv->_refcount_value ();;
ACE_DEBUG ((LM_DEBUG, "After id_to_servant: %d\n", refCountAfterIdToServant));
/*
* According to the above quote, this assertion shall be true.
*/
ACE_ASSERT (refCountAfterIdToServant == refCountBeforeIdToServant + 1);
/*
* At the end of this scope, "srv" is destructed, which decrements
* the servant's reference count.
*/
}
CORBA::ULong before_deact = h->_refcount_value ();
ACE_DEBUG ((LM_DEBUG, "Before deactivate_object: %d\n", before_deact));
poa->deactivate_object (oid.in());
/*
* Because id_to_servant did not increment the reference count, but
* the reference count was decremented by the "srv" destructor, the
* reference count, using TAO 1.4.5, is now 0, and the servant has
* been destructed. So the following will crash, despite being
* correct.
*/
CORBA::ULong after_deact = h->_refcount_value ();
ACE_DEBUG ((LM_DEBUG, "After deactivate_object: %d\n", after_deact));
h->_remove_ref ();
orb->shutdown (1);
orb->destroy ();
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception ("Exception caught:");
return 1;
}
return 0;
}
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