ACE/ace/Monitor_Control/Monitor_Query.h

   1 // -*- C++ -*-
   2
   3 //=============================================================================
   4 /**
   5  * @file Monitor_Query.h
   6  *
   7  * @author Jeff Parsons <j.parsons@vanderbilt.edu>
   8  */
   9 //=============================================================================
  10
  11 #ifndef MONITOR_QUERY_H
  12 #define MONITOR_QUERY_H
  13
  14 #include /**/ "ace/pre.h"
  15
  16 #include "ace/Event_Handler.h"
  17
  18 #if !defined (ACE_LACKS_PRAGMA_ONCE)
  19 #pragma once
  20 #endif /* ACE_LACKS_PRAGMA_ONCE */
  21
  22 #if defined (ACE_HAS_MONITOR_FRAMEWORK) && (ACE_HAS_MONITOR_FRAMEWORK == 1)
  23
  24 #include "ace/Monitor_Control/Monitor_Control_export.h"
  25
  26 ACE_BEGIN_VERSIONED_NAMESPACE_DECL
  27
  28 namespace ACE
  29 {
  30   namespace Monitor_Control
  31   {
  32     /**
  33      * @class Monitor_Point_Auto_Query
  34      *
  35      * @brief Automates periodic querying of monitor point classes.
  36      *
  37      */
  38     class MONITOR_CONTROL_Export Monitor_Point_Auto_Query
  39       : public ACE_Event_Handler
  40     {
  41     public:
  42       /// Default constructor
  43       Monitor_Point_Auto_Query ();
  44
  45       /// Override of ACE base class method.
  46       virtual int handle_timeout (const ACE_Time_Value& current,
  47                                   const void* monitor_query);
  48     };
  49
  50     /**
  51      * @class Monitor_Query
  52      *
  53      * @brief Handles queries for a specific monitor point, and
  54      *        evaluates its constraint(s) with each query.
  55      *
  56      */
  57     class MONITOR_CONTROL_Export Monitor_Query
  58     {
  59     public:
  60       Monitor_Query (const char* monitor_name);
  61
  62       void query ();
  63
  64     private:
  65       Monitor_Base* monitor_;
  66     };
  67   }
  68 }
  69
  70 ACE_END_VERSIONED_NAMESPACE_DECL
  71
  72 #endif /* ACE_HAS_MONITOR_FRAMEWORK==1 */
  73
  74 #include /**/ "ace/post.h"
  75
  76 #endif // MONITOR_QUERY_H