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// -*- C++ -*-
//=============================================================================
/**
* @file Any_Unknown_IDL_Type.h
*
* $Id$
*
* @author Carlos O'Ryan
* @author Jeff Parsons
*/
//=============================================================================
#ifndef TAO_ANY_UNKNOWN_IDL_TYPE_H
#define TAO_ANY_UNKNOWN_IDL_TYPE_H
#include /**/ "ace/pre.h"
#include "ace/Refcounted_Auto_Ptr.h"
#include "ace/Lock_Adapter_T.h"
#include "tao/AnyTypeCode/Any_Impl.h"
#include "tao/CDR.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
namespace TAO
{
/**
* @class Unknown_IDL_Type
*
* @brief CDR-based Any impl class.
*
* Used when demarshaling an Any, and with DII/DSI, and Dynamic Anys.
*/
class TAO_AnyTypeCode_Export Unknown_IDL_Type : public Any_Impl
{
public:
Unknown_IDL_Type (CORBA::TypeCode_ptr,
TAO_InputCDR &cdr);
Unknown_IDL_Type (CORBA::TypeCode_ptr);
virtual ~Unknown_IDL_Type (void);
virtual CORBA::Boolean marshal_value (TAO_OutputCDR &);
virtual const void *value (void) const;
virtual void free_value (void);
virtual TAO_InputCDR &_tao_get_cdr (void);
virtual int _tao_byte_order (void) const;
virtual void _tao_decode (TAO_InputCDR &
);
virtual CORBA::Boolean to_object (CORBA::Object_ptr &) const;
virtual CORBA::Boolean to_value (CORBA::ValueBase *&) const;
virtual CORBA::Boolean to_abstract_base (CORBA::AbstractBase_ptr &) const;
private:
// We make the lock global, so that it won't be deleted when shared.
// For instance, see Any_Basic_Impl::extract() which copies the insides
// from an Unknown_IDL_Type to an Any_Basic_Impl.
// [Iliyan] However, having a global static makes this a subject
// to the whim of the specific compiler implentation. It is the
// one deciding the order in which our instance is initialized and
// destroyed and that is boundto be a problem
// somewhere. Typically, it becomes a problem when a code that
// depends on that instance finds that the runtime has already
// destroyed it. The scenario plays almost always in the process
// shutdown code, after main() exits, having to debug which is a
// lot of fun :) ... Bottom line, use a static function, which
// encapsulates a local static initializer, guaranteed to be
// initialized at the first invocation. Using ACE_Refcounted_Auto_Ptr
// ensures that the ref count will not drop to zero until the library
// is unloaded *and* all Unknown_IDL_Type instances have been destroyed.
typedef ACE_Refcounted_Auto_Ptr<ACE_Lock,
ACE_Lock_Adapter<TAO_SYNCH_MUTEX> >
LOCK;
static LOCK lock_i (void);
LOCK const lock_;
mutable TAO_InputCDR cdr_;
};
}
TAO_END_VERSIONED_NAMESPACE_DECL
#include /**/ "ace/post.h"
#endif /* TAO_ANY_UNKNOWN_IDL_TYPE_H */
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