TAO/tao/Connection_Purging_Strategy.h

   1 // -*- C++ -*-
   2
   3 // ================================================================
   4 /**
   5  *  @file   Connection_Purging_Strategy.h
   6  *
   7  *  @author Chad Elliott (elliott_c@ociweb.com)
   8  */
   9 // ================================================================
  10
  11 #ifndef TAO_PURGING_STRATEGY_H
  12 #define TAO_PURGING_STRATEGY_H
  13
  14 #include /**/ "ace/pre.h"
  15
  16 #include /**/ "tao/TAO_Export.h"
  17
  18 #if !defined (ACE_LACKS_PRAGMA_ONCE)
  19 # pragma once
  20 #endif /* ACE_LACKS_PRAGMA_ONCE */
  21
  22 #include /**/ "tao/Versioned_Namespace.h"
  23
  24 TAO_BEGIN_VERSIONED_NAMESPACE_DECL
  25
  26 class TAO_Transport;
  27
  28 // ****************************************************************
  29
  30 /**
  31  * @class TAO_Connection_Purging_Strategy
  32  *
  33  * @brief The base class for all purging strategies
  34  *
  35  * This class is used by the Transport_Cache_Manager to maintain
  36  * ordering information on each Transport that is created.
  37  */
  38 class TAO_Export TAO_Connection_Purging_Strategy
  39 {
  40 public:
  41   /// The constructor
  42   TAO_Connection_Purging_Strategy (int cache_maximum);
  43
  44   /// The destructor
  45   virtual ~TAO_Connection_Purging_Strategy ();
  46
  47   /// Return the maximum number of cache entries
  48   virtual int cache_maximum () const;
  49
  50   /// Sub-classes must implement these methods
  51   virtual void update_item (TAO_Transport& transport) = 0;
  52
  53 private:
  54   /// The maximum number of cache entries
  55   int cache_maximum_;
  56 };
  57
  58 TAO_END_VERSIONED_NAMESPACE_DECL
  59
  60 #if defined (__ACE_INLINE__)
  61 # include "tao/Connection_Purging_Strategy.inl"
  62 #endif /* __ACE_INLINE__ */
  63
  64 #include /**/ "ace/post.h"
  65 #endif /* TAO_PURGING_STRATEGY_H */