TAO/tao/LocateRequest_Invocation_Adapter.h

   1 // -*- C++ -*-
   2
   3 //=============================================================================
   4 /**
   5  *  @file    LocateRequest_Invocation_Adapter.h
   6  *
   7  *  @author Balachandran Natarajan <bala@dre.vanderbilt.edu>
   8  */
   9 //=============================================================================
  10 #ifndef TAO_LOCATEREQUEST_INVOCATION_ADAPTER_H
  11 #define TAO_LOCATEREQUEST_INVOCATION_ADAPTER_H
  12
  13 #include /**/ "ace/pre.h"
  14
  15 #include "tao/Policy_ForwardC.h"
  16
  17 #if !defined (ACE_LACKS_PRAGMA_ONCE)
  18 # pragma once
  19 #endif /* ACE_LACKS_PRAGMA_ONCE */
  20
  21 #include "tao/Pseudo_VarOut_T.h"
  22
  23 ACE_BEGIN_VERSIONED_NAMESPACE_DECL
  24 class ACE_Time_Value;
  25 ACE_END_VERSIONED_NAMESPACE_DECL
  26
  27 TAO_BEGIN_VERSIONED_NAMESPACE_DECL
  28
  29 namespace CORBA
  30 {
  31   class Object;
  32   typedef Object *Object_ptr;
  33   typedef TAO_Pseudo_Var_T<Object> Object_var;
  34 }
  35
  36 class TAO_Stub;
  37
  38 namespace TAO
  39 {
  40   /**
  41    * @class LocateRequest_Invocation_Adapter
  42    *
  43    * @brief Adapter class for locate request invocations.
  44    *
  45    *  This class provides a look and feel similar to the
  46    *  TAO::Invocation_Adapter though the functionalities are
  47    *  different. For the record, IDL compiler doesn't know the
  48    *  existence of this class. This class is concerned with the
  49    *  creation and invocation of locate request invocations to the
  50    *  target object
  51    *
  52    * @todo Need to think what happens if the target is
  53    *  collocated. Looks like there are no ways to utilize the
  54    *  opportunity that may have been presented.
  55    */
  56   class LocateRequest_Invocation_Adapter
  57   {
  58   public:
  59     LocateRequest_Invocation_Adapter (CORBA::Object_ptr target);
  60
  61     /// Start the invocation on the target
  62     void invoke ();
  63
  64     /// Accessor to the inconsistent policy list
  65     CORBA::PolicyList *get_inconsistent_policies ();
  66
  67   private:
  68     bool get_timeout (ACE_Time_Value &val);
  69
  70     /// Helper method that takes care of setting the profiles within
  71     /// the stub object if the target gets forwarded
  72     void object_forwarded (CORBA::Object_var &effective_target,
  73                            TAO_Stub *stub,
  74                            CORBA::Boolean permanent_forward);
  75
  76   private:
  77     CORBA::Object_ptr target_;
  78     CORBA::PolicyList_var list_;
  79   };
  80 }
  81
  82 TAO_END_VERSIONED_NAMESPACE_DECL
  83
  84 #include /**/ "ace/post.h"
  85
  86 #endif /*TAO_LOCATEREQUEST_INVOCATION_ADAPTER_H*/