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// -*- C++ -*-
//=============================================================================
/**
* @file Recursive_Type_TypeCode.h
*
* $Id$
*
* Header file for a recursive type (@c struct, @c union or
* @c valuetype) CORBA::TypeCode.
*
* @author Ossama Othman
*/
//=============================================================================
#ifndef TAO_RECURSIVE_TYPE_TYPECODE_H
#define TAO_RECURSIVE_TYPE_TYPECODE_H
#include /**/ "ace/pre.h"
#include "tao/Basic_Types.h"
#include "tao/Typecode_typesC.h"
#include "ace/Recursive_Thread_Mutex.h"
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
namespace TAO
{
namespace TypeCode
{
/**
* @class Recursive_Type
*
* @brief Recursive type @c TypeCode decorator template.
*
* This class template decorates the underlying @c TypeCode
* implementation @a TypeCodeBase to provide support for IDL
* defined recursive types. Only IDL an @c struct, @c union or
* @c valuetype may be recursive, which is why this decorator only
* supports constructors for the corresponding @c TypeCode
* implementations.
*/
template <class TypeCodeBase,
typename TypeCodeType,
typename MemberArrayType>
class Recursive_Type
: public TypeCodeBase
{
public:
/// Recursive @c struct constructor.
Recursive_Type (CORBA::TCKind kind,
char const * id,
char const * name,
MemberArrayType const & fields,
CORBA::ULong nfields);
/// Recursive @c union constructor.
Recursive_Type (char const * id,
char const * name,
#if defined (__BORLANDC__) && (__BORLANDC__ < 0x572)
// Borland C++ currently can't handle a
// reference to const pointer to const
// CORBA::TypeCode_ptr.
TypeCodeType discriminant_type,
#else
TypeCodeType const & discriminant_type,
#endif
MemberArrayType const & cases,
CORBA::ULong ncases,
CORBA::Long default_index);
/// Recursive @c valuetype constructor.
Recursive_Type (CORBA::TCKind kind,
char const * id,
char const * name,
CORBA::ValueModifier modifier,
#if defined (__BORLANDC__) && (__BORLANDC__ < 0x572)
// Borland C++ currently can't handle a
// reference to const pointer to const
// CORBA::TypeCode_ptr.
TypeCodeType concrete_base,
#else
TypeCodeType const & concrete_base,
#endif
MemberArrayType const & fields,
CORBA::ULong nfields);
/// Dynamic @c Recursive_Type TypeCode constructor.
Recursive_Type (CORBA::TCKind kind,
char const * id);
/**
* @name TAO-specific @c CORBA::TypeCode Methods
*
* Methods required by TAO's implementation of the
* @c CORBA::TypeCode class.
*
* @par
*
* These are recursive type @c TypeCode marshaling operation
* overrides.
*
* @see @c CORBA::TypeCode
*/
//@{
virtual bool tao_marshal_kind (TAO_OutputCDR & cdr) const;
virtual bool tao_marshal (TAO_OutputCDR & cdr,
CORBA::ULong offset) const;
//@}
protected:
/**
* @name TAO @c CORBA::TypeCode Template Methods
*
* Recursive type @c CORBA::TypeCode -specific
* template methods.
*
* @see @c CORBA::TypeCode
*/
//@{
virtual CORBA::Boolean equal_i (CORBA::TypeCode_ptr tc
ACE_ENV_ARG_DECL) const;
virtual CORBA::Boolean equivalent_i (CORBA::TypeCode_ptr tc
ACE_ENV_ARG_DECL) const;
//@}
public:
/// Set @c struct @c TypeCode parameters.
void struct_parameters (char const * name,
MemberArrayType const & fields,
CORBA::ULong nfields);
/// Set @c union @c TypeCode parameters.
void union_parameters (
char const * name,
#if defined (__BORLANDC__) && (__BORLANDC__ < 0x572)
// Borland C++ currently can't handle a
// reference to const pointer to const
// CORBA::TypeCode_ptr.
TypeCodeType discriminant_type,
#else
TypeCodeType const & discriminant_type,
#endif
MemberArrayType const & cases,
CORBA::ULong ncases,
CORBA::Long default_index);
/// Set @c valuetype or @c eventtype @c TypeCode parameters.
void valuetype_parameters (char const * name,
CORBA::ValueModifier modifier,
#if defined (__BORLANDC__) && (__BORLANDC__ < 0x572)
// Borland C++ currently can't handle a
// reference to const pointer to const
// CORBA::TypeCode_ptr.
TypeCodeType concrete_base,
#else
TypeCodeType const & concrete_base,
#endif
MemberArrayType const & fields,
CORBA::ULong nfields);
private:
/**
* @class Reset
*
* @brief Reset flag to false in an exception-safe manner.
*
* Reset flag to false in an exception-safe manner.
*/
class Reset
{
public:
Reset (bool & flag) : flag_ (flag) { }
~Reset (void) { this->flag_ = false; }
private:
bool & flag_;
};
private:
/// Internal state thread synchronization mutex.
mutable TAO_SYNCH_RECURSIVE_MUTEX lock_;
/// @c true if equality or equivalence is being determined
/// recursively.
/**
* This flag is used to prevent @c TypeCode equality and
* equivalence operations from recursing indefinitely.
*/
mutable bool in_recursion_;
};
} // End namespace TypeCode
} // End namespace TAO
TAO_END_VERSIONED_NAMESPACE_DECL
#ifdef __ACE_INLINE__
# include "tao/AnyTypeCode/Recursive_Type_TypeCode.inl"
#endif /* __ACE_INLINE__ */
#ifdef ACE_TEMPLATES_REQUIRE_SOURCE
# include "tao/AnyTypeCode/Recursive_Type_TypeCode.cpp"
#endif /* ACE_TEMPLATES_REQUIRE_SOURCE */
#ifdef ACE_TEMPLATES_REQUIRE_PRAGMA
# pragma implementation ("Recursive_Type_TypeCode.cpp")
#endif /* ACE_TEMPLATES_REQUIRE_PRAGMA */
#include /**/ "ace/post.h"
#endif /* TAO_RECURSIVE_TYPE_TYPECODE_H */
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