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/* -*- C++ -*- */
// $Id$
// ============================================================================
//
// = LIBRARY
// ace
//
// = FILENAME
// Active_Map_Manager.h
//
// = AUTHOR
// Irfan Pyarali
//
// ============================================================================
#ifndef ACE_ACTIVE_MAP_MANAGER_H
#define ACE_ACTIVE_MAP_MANAGER_H
#include "ace/OS.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
class ACE_Export ACE_Active_Map_Manager_Key
{
// = TITLE
// Key used in the Active Object Map.
//
// = DESCRIPTION
// This key keeps information of the index and the generation
// count of the slot it represents. Since the index information
// is part of the key, lookups are super fast and predictable,
public:
ACE_Active_Map_Manager_Key (void);
// Default constructor.
ACE_Active_Map_Manager_Key (ACE_UINT32 slot_index,
ACE_UINT32 slot_generation);
// Constructor given the <slot_index> and <slot_generation> number.
// This is useful once the user has somehow recovered the
// <slot_index> and <slot_generation> number from the client.
ACE_UINT32 slot_index (void) const;
void slot_index (ACE_UINT32 i);
// Get/Set the <slot_index>.
ACE_UINT32 slot_generation (void) const;
void slot_generation (ACE_UINT32 g);
// Get/Set the <slot_generation> number.
static size_t size (void);
// Size required to store information about active key.
void decode (const void *data);
// Recover state of active key from <data>. User must make sure
// that <data> encoded using the <encode> method.
void encode (void *data) const;
// Encode state of the active key into <data>. <data> must be as
// big as the value returned from <size>.
int operator== (const ACE_Active_Map_Manager_Key &rhs) const;
int operator!= (const ACE_Active_Map_Manager_Key &rhs) const;
// Compare keys.
// = This really should be protected but because of template
// friends, they are not.
void increment_slot_generation_count (void);
// Increment the <slot_generation> number.
private:
struct key_data
{
// = TITLE
// Data for the Active Object Map Key.
//
// = DESCRIPTION
// This separate structure makes it easier to manage copying
// the index and the generation to and from the user buffer.
ACE_UINT32 slot_index_;
// Slot index in the active map.
ACE_UINT32 slot_generation_;
// Slot generation number of <slot_index_> slot in the active map.
};
key_data key_data_;
// Data for the Active Object Map Key.
};
#if defined (__ACE_INLINE__)
#include "ace/Active_Map_Manager.i"
#endif /* __ACE_INLINE__ */
// Include the templates here.
#include "ace/Active_Map_Manager_T.h"
#endif /* ACE_ACTIVE_MAP_MANAGER_H */
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