TAO/tao/Strategies/LFU_Connection_Purging_Strategy.h

   1 // -*- C++ -*-
   2
   3 // ================================================================
   4 /**
   5  *  @file   LFU_Connection_Purging_Strategy.h
   6  *
   7  *  @author Chad Elliott (elliott_c@ociweb.com)
   8  */
   9 // ================================================================
  10
  11 #ifndef TAO_LFU_PURGING_STRATEGY_H
  12 #define TAO_LFU_PURGING_STRATEGY_H
  13 #include /**/ "ace/pre.h"
  14
  15 #include "tao/Strategies/strategies_export.h"
  16 #include "tao/Connection_Purging_Strategy.h"
  17
  18 #if !defined (ACE_LACKS_PRAGMA_ONCE)
  19 # pragma once
  20 #endif /* ACE_LACKS_PRAGMA_ONCE */
  21
  22 // ****************************************************************
  23
  24 TAO_BEGIN_VERSIONED_NAMESPACE_DECL
  25
  26 /**
  27  * @class TAO_LFU_Connection_Purging_Strategy
  28  *
  29  * @brief The Least Frequently Used connection purging strategy
  30  *
  31  * This class increments the order information on each item passed
  32  * in.  This way, the least frequently used transport has the
  33  * smallest ordering number and will therefore be purged first.
  34  */
  35 class TAO_Strategies_Export TAO_LFU_Connection_Purging_Strategy:
  36                             public TAO_Connection_Purging_Strategy
  37 {
  38 public:
  39   /// The constructor
  40   TAO_LFU_Connection_Purging_Strategy (int cache_maximum);
  41
  42   /// Called when accessing an item from the cache
  43   virtual void update_item (TAO_Transport& transport);
  44 };
  45
  46 TAO_END_VERSIONED_NAMESPACE_DECL
  47
  48 #include /**/ "ace/post.h"
  49 #endif /* TAO_LFU_PURGING_STRATEGY_H */