TAO/examples/Load_Balancing/Identity_Server.h

   1 // -*- C++ -*-
   2
   3 //=============================================================================
   4 /**
   5  *  @file    Identity_Server.h
   6  *
   7  *  Driver for identity server, which is used to test/demonstrate
   8  *  the functionality of the Load Balancing service.
   9  *
  10  *  @author Marina Spivak <marina@cs.wustl.edu>
  11  */
  12 //=============================================================================
  13
  14
  15 #ifndef IDENTITY_SERVER_H_
  16 #define IDENTITY_SERVER_H_
  17
  18 #include "tao/Utils/ORB_Manager.h"
  19 #include "Load_BalancerC.h"
  20
  21 #if !defined (ACE_LACKS_PRAGMA_ONCE)
  22 # pragma once
  23 #endif /* ACE_LACKS_PRAGMA_ONCE */
  24
  25 /**
  26  * @class Identity_Server
  27  *
  28  * Contacts the <Object_Group_Factory> in the Load Balancing Server
  29  * to create two <Object_Group>s, one round robin and one random.
  30  * Then, creates a number of <Identity> objects and registers them with
  31  * the created <Object_Group>s in a manner specified by the
  32  * commandline arguments.
  33  */
  34 class Identity_Server
  35 {
  36 public:
  37   /// Default constructor.
  38   Identity_Server ();
  39
  40   /// Destructor.
  41   ~Identity_Server ();
  42
  43   /// Performs all the initializations necessary before going into the
  44   /// ORB event loop.
  45   int init (int argc, ACE_TCHAR *argv[]);
  46
  47   /// Run the server.
  48   int run ();
  49
  50 private:
  51   /// Parses the commandline arguments.
  52   int parse_args (int argc, ACE_TCHAR *argv[]);
  53
  54   /**
  55    * Creates the specified number of identity objects, and registers
  56    * each one with the provided <Object_Group>.  Identity servants are
  57    * given names
  58    *"Identity object 1" .... "Identity object <number_of_objects>".
  59    */
  60   void create_objects (size_t number_of_objects,
  61                        Load_Balancer::Object_Group_ptr group);
  62
  63   /// The ORB manager.
  64   TAO_ORB_Manager orb_manager_;
  65
  66   /// The ior of the <Object_Group_Factory> object we shall use to
  67   /// create <Object_Group>s to load balance our <Identity> objects.
  68   const ACE_TCHAR *group_factory_ior_;
  69
  70   /// Number of <Identity> objects to create for registering with
  71   /// the random <Object_Group>.  The default value is 5.
  72   size_t random_objects_;
  73
  74   /// Number of <Identity> objects to create for registering with the
  75   /// round robin <Object_Group>.  The default value is 5.
  76   size_t rr_objects_;
  77 };
  78
  79 #endif /* IDENTITY_SERVER_H_ */