TAO/examples/Event_Comm/Notifier_Handler.h

   1 /* -*- C++ -*- */
   2
   3 //=============================================================================
   4 /**
   5  *  @file    Notifier_Handler.h
   6  *
   7  *  @author Douglas C. Schmidt (d.schmidt@vanderbilt.edu) and Pradeep Gore (pradeep@cs.wustl.edu)
   8  */
   9 //=============================================================================
  10
  11
  12 #ifndef _NOTIFIER_HANDLER_H
  13 #define _NOTIFIER_HANDLER_H
  14
  15 #include "Event_Comm_i.h"
  16
  17 #if !defined (ACE_LACKS_PRAGMA_ONCE)
  18 # pragma once
  19 #endif /* ACE_LACKS_PRAGMA_ONCE */
  20
  21 #include "orbsvcs/Naming/Naming_Client.h"
  22 #include "orbsvcs/CosNamingC.h"
  23
  24 /**
  25  * @class Notifier_Handler
  26  *
  27  * @brief Holds the <Event_Comm::Notifier> object which is obtained from
  28  * the naming service.
  29  */
  30 class Notifier_Handler
  31 {
  32 public:
  33   /// This constructor gets the notifier object from the Naming
  34   /// Service.
  35   Notifier_Handler () = default;
  36
  37   /// Destructor.
  38   virtual ~Notifier_Handler () = default;
  39
  40   /// Initialize the client communication endpoint with server.
  41   int init (int argc, ACE_TCHAR *argv[], ShutdownCallback* _shutdowncallback);
  42
  43   // = Accessors.
  44   Event_Comm::Notifier *notifier ();
  45   void notifier (Event_Comm::Notifier *);
  46
  47   /// runs the ORB.
  48   int run ();
  49
  50   /// Close down the handler.
  51   int close ();
  52
  53   /// called to request application shutdown.
  54   void shutdown ();
  55
  56   /// returns the ORB's reactor.
  57   ACE_Reactor *reactor ();
  58
  59 private:
  60   /// Remember our orb.
  61   CORBA::ORB_var orb_;
  62
  63   /// Pointer to an <Event_Comm::Notifier> object.
  64   Event_Comm::Notifier *notifier_;
  65
  66   /// An instance of the name client used for resolving the factory
  67   /// objects.
  68  TAO_Naming_Client naming_client_;
  69
  70   /// The handler to shutdown the app.
  71   ShutdownCallback *shutdowncallback;
  72 };
  73
  74 #define NOTIFIER_BIND_NAME "Notifier"
  75
  76 #endif /* _NOTIFIER_HANDLER_H */