Object.h File Reference

#include "tao/IOPC.h"
#include "tao/CORBA_methods.h"
#include "tao/Policy_ForwardC.h"
#include "tao/Pseudo_VarOut_T.h"
#include "tao/Object_Argument_T.h"
#include "tao/Arg_Traits_T.h"
#include "tao/Any_Insert_Policy_T.h"
#include "ace/Atomic_Op.h"
#include "tao/Object.inl"

Go to the source code of this file.

Classes
class	CORBA::Object
	Implementation of a CORBA object reference. More...
class	TAO::Arg_Traits< CORBA::Object >
struct	TAO::Objref_Traits< CORBA::Object >
struct	TAO::In_Object_Argument_Cloner_T< CORBA::InterfaceDef_ptr >

Namespaces
	TAO
	Define symbolic names for the ORB collocation strategies as used at runtime.
	CORBA
	FUZZ: disable check_for_include/.

Typedefs
typedef ContextList *	CORBA::ContextList_ptr

Functions
template<>
Boolean	CORBA::is_nil (Object_ptr)
CORBA::Boolean	operator<< (TAO_OutputCDR &, const CORBA::Object *)
CORBA::Boolean	operator>> (TAO_InputCDR &, CORBA::Object *&)

Variables
TAO::Object_Proxy_Broker *(*	_TAO_Object_Proxy_Broker_Factory_function_pointer )(void)

Detailed Description

A "Object" is an entity that can be the target of an invocation using an ORB. All CORBA objects provide this functionality. See the CORBA 3.x specification for details.

Author

Portions Copyright 1994-1995 by Sun Microsystems Inc.

Portions Copyright 1997-2002 by Washington University

Definition in file Object.h.

Function Documentation

operator<<()

CORBA::Boolean operator<<	(	TAO_OutputCDR &	,
		const CORBA::Object *
	)

Definition at line 707 of file Object.cpp.

{
  if (x == 0)
    {
      // NIL objrefs ... marshal as empty type hint, no elements.
      cdr.write_ulong (1);
      cdr.write_char ('\0');
      cdr.write_ulong (0);
      return (CORBA::Boolean) cdr.good_bit ();
    }

  if (!x->is_evaluated ())
    {
      // @@ This is too inefficient. Need to speed this up if this is
      // a bottle neck.
      cdr << const_cast<IOP::IOR &> (x->ior ());
      return cdr.good_bit ();
    }

   TAO_Stub *stubobj = x->_stubobj ();

   if (stubobj == 0)
     return false;

  return (stubobj->marshal (cdr));
}

operator>>()

CORBA::Boolean operator>>	(	TAO_InputCDR &	,
		CORBA::Object *&
	)

Definition at line 843 of file Object.cpp.

{
  bool lazy_strategy = false;
  TAO_ORB_Core *orb_core = cdr.orb_core ();

  if (orb_core == 0)
    {
      orb_core = TAO_ORB_Core_instance ();
      if (TAO_debug_level > 0)
        {
          TAOLIB_DEBUG ((LM_WARNING,
                      ACE_TEXT ("TAO (%P|%t) WARNING: extracting object from ")
                      ACE_TEXT ("default ORB_Core\n")));
        }
    }
  else
    {
      if (orb_core->resource_factory ()->resource_usage_strategy () ==
          TAO_Resource_Factory::TAO_LAZY)
        {
          lazy_strategy = true;
        }
    }

  if (!lazy_strategy)
    {
      // If the user has set up a eager strategy..
      CORBA::String_var type_hint;
      if (!(cdr >> type_hint.inout ()))
        return false;

      CORBA::ULong profile_count;
      if (!(cdr >> profile_count))
        return false;

      if (profile_count == 0)
        {
          x = CORBA::Object::_nil ();
          return (CORBA::Boolean) cdr.good_bit ();
        }

      // get a profile container to store all profiles in the IOR.
      TAO_MProfile mp (profile_count);

      TAO_ORB_Core *orb_core = cdr.orb_core ();
      if (orb_core == 0)
        {
          orb_core = TAO_ORB_Core_instance ();
          if (TAO_debug_level > 0)
            {
              TAOLIB_DEBUG ((LM_WARNING,
                          ACE_TEXT ("TAO (%P|%t) - Object::tao_object_initialize ")
                          ACE_TEXT ("WARNING: extracting object from ")
                          ACE_TEXT ("default ORB_Core\n")));
            }
        }

      // Ownership of type_hint is given to TAO_Stub
      // TAO_Stub will make a copy of mp!
      TAO_Stub *objdata = 0;

      try
        {
          TAO_Connector_Registry *connector_registry =
            orb_core->connector_registry ();

          for (CORBA::ULong i = 0; i != profile_count && cdr.good_bit (); ++i)
            {
              TAO_Profile *pfile = connector_registry->create_profile (cdr);
              if (pfile != 0)
                {
                  if (mp.give_profile (pfile) == -1)
                    {
                      TAOLIB_ERROR ((LM_ERROR,
                                  ACE_TEXT ("TAO (%P|%t) ERROR: give_profile\n")
                                  ACE_TEXT (" returned -1\n")));
                    }
                }
            }

          // Make sure we got some profiles!
          if (mp.profile_count () != profile_count)
            {
              // @@ This occurs when profile creation fails when decoding the
              //    profile from the IOR.
              TAOLIB_ERROR_RETURN ((LM_ERROR,
                                 ACE_TEXT ("TAO (%P|%t) - ERROR: Could not create all ")
                                 ACE_TEXT ("profiles while extracting object [%d, %d] ")
                                 ACE_TEXT ("reference from the CDR stream.\n"),
                                 mp.profile_count (), profile_count),
                                false);
            }

          objdata = orb_core->create_stub (type_hint.in (), mp);
        }
      catch (const ::CORBA::Exception& ex)
        {
          if (TAO_debug_level > 0)
            ex._tao_print_exception (
              ACE_TEXT ("TAO (%P|%t) - ERROR creating stub ")
              ACE_TEXT ("object when demarshaling object ")
              ACE_TEXT ("reference.\n"));

          return false;
        }

      TAO_Stub_Auto_Ptr safe_objdata (objdata);

      x = orb_core->create_object (safe_objdata.get ());
      if (!x)
        {
          return false;
        }

      // Transfer ownership to the CORBA::Object
      (void) safe_objdata.release ();
    }
  else
    {
      // Lazy strategy!
      IOP::IOR *ior = 0;

      ACE_NEW_RETURN (ior,
                      IOP::IOR (),
                      false);

      if (!(cdr >> *ior))
        {
          // Can't extract the IOR, so delete the already allocated
          // ior to not have a memory leak
          delete ior;
          return false;
        }

      ACE_NEW_NORETURN (x,
                        CORBA::Object (ior, orb_core));

      if (x == 0)
        {
          // Can't allocate a CORBA Object so delete first the
          // memory we already allocated before we return
          delete ior;
          return false;
        }
    }

  return (CORBA::Boolean) cdr.good_bit ();
}

Variable Documentation

_TAO_Object_Proxy_Broker_Factory_function_pointer

TAO::Object_Proxy_Broker*(* _TAO_Object_Proxy_Broker_Factory_function_pointer) (void)

This function pointer is set only when the Portable server library is present.

Definition at line 1042 of file Object.cpp.