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// -*- C++ -*-
//=============================================================================
/**
* @file Cache_Entries.h
*
* $Id$
*
*
* @author Bala Natarajan <bala@cs.wustl.edu>
*/
//=============================================================================
#ifndef TAO_CACHE_ENTRIES_H
#define TAO_CACHE_ENTRIES_H
#include /**/ "ace/pre.h"
#include "tao/Transport_Descriptor_Interface.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/Recyclable.h"
class TAO_Transport;
#ifdef index
# undef index
#endif /* index */
/**
* @class TAO_Cache_IntId
*
* @brief Helper class for TAO_Transport_Cache_Manager
*
* Helper class that wraps the <value> part of the Map or
* table holding the Transport state.: unifies data items, so
* they can be stored together as a <value> for a <key> in a
* table holding the state of the Transport Cache.
*/
class TAO_Export TAO_Cache_IntId
{
public:
/// Constructor.
TAO_Cache_IntId (void);
/// Constructor.
TAO_Cache_IntId (TAO_Transport *transport);
/// Copy constructor.
TAO_Cache_IntId (const TAO_Cache_IntId & rhs);
/// Destructor.
~TAO_Cache_IntId (void);
/// Assignment operator (does copy memory).
TAO_Cache_IntId& operator= (const TAO_Cache_IntId &rhs);
/// Equality comparison operator (must match both id_ and kind_).
int operator== (const TAO_Cache_IntId &rhs) const;
/// Inequality comparison operator.
int operator!= (const TAO_Cache_IntId &rhs) const;
/// Return the underlying transport
TAO_Transport *transport (void);
/// Return the underlying transport
const TAO_Transport *transport (void) const;
/// Set <recycle_state>.
void recycle_state (ACE_Recyclable_State new_state);
/// Get <recycle_state>.
ACE_Recyclable_State recycle_state (void);
/// Relinquish ownership of the TAO_Transport object associated with
/// this TAO_Cache_IntId.
/**
* @note This method should go away once the
* Transport_Cache_Map_Manager is improved so that it returns
* TAO_Transport objects when performing a find() operation.
* This method really only exists to get around inadequacies
* in the Transport_Cache_Map_Manager interface.
*/
TAO_Transport *relinquish_transport (void);
private:
/// The transport that needs to be cached.
TAO_Transport *transport_;
/// The state of the handle
ACE_Recyclable_State recycle_state_;
};
/**
* @class TAO_Cache_ExtId
*
* @brief Helper class for TAO_Transport_Cache_Manager: unifies
* several data items, so they can be stored together as a
* <value> for a <key> in a hash table holding the state of the
* Transport Cache.
*/
class TAO_Export TAO_Cache_ExtId
{
public:
/// Constructor.
TAO_Cache_ExtId (void);
/// Constructor.
TAO_Cache_ExtId (TAO_Transport_Descriptor_Interface *prop);
/// Copy constructor.
TAO_Cache_ExtId (const TAO_Cache_ExtId & rhs);
/// Destructor.
~TAO_Cache_ExtId (void);
// = Assignment and comparison operators.
/// Assignment operator (does copy memory).
TAO_Cache_ExtId& operator= (const TAO_Cache_ExtId &rhs);
/// Equality comparison operator (must match both id_ and kind_).
int operator== (const TAO_Cache_ExtId &rhs) const;
/// Inequality comparison operator.
int operator!= (const TAO_Cache_ExtId &rhs) const;
/// <hash> function is required in order for this class to be usable by
/// ACE_Hash_Map_Manager_Ex.
u_long hash (void) const;
/// Make a deep copy of the underlying pointer
void duplicate (void);
//@{
/// Return the index value
CORBA::ULong index (void);
CORBA::ULong index (void) const;
//@}
/// Set the index value. This calls should not be used by any users
/// but for the TAO_Transport_Cache_Manager class.
void index (CORBA::ULong index);
/// Increment the index value
void incr_index (void);
// = Accessors
/// Get the underlying the property pointer
TAO_Transport_Descriptor_Interface *property (void) const;
private:
/// A property object that we represent.
TAO_Transport_Descriptor_Interface *transport_property_;
/// Do we need to delete transport_property?
CORBA::Boolean is_delete_;
/**
* This is a supplementary index. Would be set to zero by
* default. Would be altered by the Transport_Cache of TAO. Please
* see the documentation of TAO_Transport_Cache_Manager for
* details.
*/
CORBA::ULong index_;
};
#if defined (__ACE_INLINE__)
# include "tao/Cache_Entries.inl"
#endif /* __ACE_INLINE__ */
#include /**/ "ace/post.h"
#endif /* TAO_CACHE_ENTRIES_H */
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