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117 lines
3.0 KiB
C++
117 lines
3.0 KiB
C++
/* -*- C++ -*- */
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//=============================================================================
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/**
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* @file Active_Map_Manager.h
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*
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* $Id: Active_Map_Manager.h 93359 2011-02-11 11:33:12Z mcorino $
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*
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* @author Irfan Pyarali
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*/
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//=============================================================================
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#ifndef ACE_ACTIVE_MAP_MANAGER_H
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#define ACE_ACTIVE_MAP_MANAGER_H
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#include /**/ "ace/pre.h"
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#include /**/ "ace/ACE_export.h"
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#if !defined (ACE_LACKS_PRAGMA_ONCE)
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# pragma once
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#endif /* ACE_LACKS_PRAGMA_ONCE */
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#include "ace/Basic_Types.h"
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ACE_BEGIN_VERSIONED_NAMESPACE_DECL
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/**
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* @class ACE_Active_Map_Manager_Key
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*
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* @brief Key used in the Active Object Map.
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*
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* This key keeps information of the index and the generation
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* count of the slot it represents. Since the index information
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* is part of the key, lookups are super fast and predictable,
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*/
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class ACE_Export ACE_Active_Map_Manager_Key
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{
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public:
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/// Default constructor.
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ACE_Active_Map_Manager_Key (void);
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/**
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* Constructor given the @a slot_index and @a slot_generation number.
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* This is useful once the user has somehow recovered the
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* @a slot_index and @a slot_generation number from the client.
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*/
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ACE_Active_Map_Manager_Key (ACE_UINT32 slot_index,
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ACE_UINT32 slot_generation);
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/// Get the slot_index.
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ACE_UINT32 slot_index (void) const;
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/// Set the slot_index.
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void slot_index (ACE_UINT32 i);
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/// Get the slot_generation number.
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ACE_UINT32 slot_generation (void) const;
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/// Set the slot_generation number.
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void slot_generation (ACE_UINT32 g);
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/// Size required to store information about active key.
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static size_t size (void);
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/// Recover state of active key from @a data. User must make sure
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/// that @a data encoded using the encode() method.
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void decode (const void *data);
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/// Encode state of the active key into @a data. @a data must be as
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/// big as the value returned from size().
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void encode (void *data) const;
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/// Compare keys.
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bool operator== (const ACE_Active_Map_Manager_Key &rhs) const;
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bool operator!= (const ACE_Active_Map_Manager_Key &rhs) const;
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// = This really should be protected but because of template
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// friends, they are not.
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/// Increment the slot_generation number.
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void increment_slot_generation_count (void);
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private:
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/**
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* @brief Data for the Active Object Map Key.
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*
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* This separate structure makes it easier to manage copying
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* the index and the generation to and from the user buffer.
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*
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*/
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struct key_data
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{
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/// Slot index in the active map.
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ACE_UINT32 slot_index_;
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/// Slot generation number of @c slot_index_ slot in the active map.
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ACE_UINT32 slot_generation_;
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};
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/// Data for the Active Object Map Key.
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key_data key_data_;
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};
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ACE_END_VERSIONED_NAMESPACE_DECL
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#if defined (__ACE_INLINE__)
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#include "ace/Active_Map_Manager.inl"
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#endif /* __ACE_INLINE__ */
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// Include the templates here.
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#include "ace/Active_Map_Manager_T.h"
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#include /**/ "ace/post.h"
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#endif /* ACE_ACTIVE_MAP_MANAGER_H */
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