TAO/tao/MCAST_Parser.h

   1 // -*- C++ -*-
   2
   3 //=============================================================================
   4 /**
   5  *  @file   MCAST_Parser.h
   6  *
   7  *  @author Priyanka Gontla (gontla_p@ociweb.com)
   8  */
   9 //=============================================================================
  10
  11
  12 #ifndef TAO_MCAST_PARSER_H
  13 #define TAO_MCAST_PARSER_H
  14
  15 #include /**/ "ace/pre.h"
  16 #include "ace/Service_Config.h"
  17
  18 #if !defined (ACE_LACKS_PRAGMA_ONCE)
  19 # pragma once
  20 #endif /* ACE_LACKS_PRAGMA_ONCE */
  21
  22 #include "tao/CORBA_String.h"
  23 #include "tao/IOR_Parser.h"
  24
  25 #if (TAO_HAS_MCAST_PARSER == 1)
  26
  27 TAO_BEGIN_VERSIONED_NAMESPACE_DECL
  28
  29 /**
  30  * @class TAO_MCAST_Parser
  31  *
  32  * @brief Implements the @c mcast: IOR format
  33  *
  34  * This class implements the @c mcast: IOR format.
  35  * It is dynamically loaded by the ORB and used to parse the
  36  * string to separate the individual <obj_addr> from the list of object
  37  * addresses <obj_addr_list>.
  38  */
  39 class TAO_Export TAO_MCAST_Parser : public TAO_IOR_Parser
  40 {
  41 public:
  42   /// Constructor
  43   TAO_MCAST_Parser ();
  44
  45   /// The destructor
  46   virtual ~TAO_MCAST_Parser ();
  47
  48   /// = The IOR_Parser methods, please read the documentation in
  49   ///   IOR_Parser.h
  50   virtual bool match_prefix (const char *ior_string) const;
  51
  52   /// Parse the ior-string that is passed.
  53   virtual CORBA::Object_ptr parse_string (const char *ior,
  54                                           CORBA::ORB_ptr orb);
  55
  56 private:
  57   CORBA::Object_ptr multicast_to_service (const char *service_name,
  58                                           unsigned short port,
  59                                           const char *mcast_address,
  60                                           int mcast_ttl,
  61                                           const char *mcast_nic,
  62                                           CORBA::ORB_ptr orb,
  63                                           ACE_Time_Value *timeout);
  64
  65   int multicast_query (char *&buf,
  66                        const char *service_name,
  67                        unsigned short port,
  68                        const char *mcast_address,
  69                        int mcast_ttl,
  70                        const char *mcast_nic,
  71                        ACE_Time_Value *timeout,
  72                        CORBA::ORB_ptr orb);
  73
  74   /* Simple method to assign values to the global members:
  75      mcast_address_, mcast_port_, mcast_nic_, mcast_ttl_ */
  76   void assign_to_variables (char const * mcast_name_ptr);
  77
  78 private:
  79   CORBA::String_var mcast_address_;
  80
  81   /// Default multicast port (currently Name Service mcast port).
  82   unsigned short    mcast_port_;
  83
  84   /// Multicast network interface card.
  85   CORBA::String_var mcast_nic_;
  86
  87   /// Default time-to-live (default is 1).
  88   int               mcast_ttl_;
  89
  90   /// Multicast service name
  91   CORBA::String_var service_name_;
  92 };
  93
  94 ACE_STATIC_SVC_DECLARE_EXPORT (TAO, TAO_MCAST_Parser)
  95 ACE_FACTORY_DECLARE (TAO, TAO_MCAST_Parser)
  96
  97 TAO_END_VERSIONED_NAMESPACE_DECL
  98
  99 #if defined (__ACE_INLINE__)
 100 # include "tao/MCAST_Parser.inl"
 101 #endif /* __ACE_INLINE__ */
 102
 103 #endif /* TAO_HAS_MCAST_PARSER == 1 */
 104
 105 #include /**/ "ace/post.h"
 106 #endif /* TAO_MCAST_PARSER_H */