TAO/tao/IIOP_Transport.h

   1 // -*- C++ -*-
   2
   3 // ===================================================================
   4 /**
   5  *  @file   IIOP_Transport.h
   6  *
   7  *  @author Originally by Fred Kuhns <fredk@cs.wustl.edu>
   8  *  @author Modified by Balachandran Natarajan <bala@cs.wustl.edu>
   9  */
  10 // ===================================================================
  11
  12 #ifndef TAO_IIOP_TRANSPORT_H
  13 #define TAO_IIOP_TRANSPORT_H
  14
  15 #include /**/ "ace/pre.h"
  16
  17 #include "tao/orbconf.h"
  18
  19 #if !defined (ACE_LACKS_PRAGMA_ONCE)
  20 # pragma once
  21 #endif /* ACE_LACKS_PRAGMA_ONCE */
  22
  23 #if defined (TAO_HAS_IIOP) && (TAO_HAS_IIOP != 0)
  24
  25 #include "tao/Transport.h"
  26
  27 TAO_BEGIN_VERSIONED_NAMESPACE_DECL
  28
  29 namespace IIOP
  30 {
  31   class ListenPointList;
  32 }
  33
  34 // Forward decls.
  35 class TAO_IIOP_Connection_Handler;
  36 class TAO_ORB_Core;
  37 class TAO_Operation_Details;
  38 class TAO_Acceptor;
  39 class TAO_Adapter;
  40
  41 /**
  42  * @class TAO_IIOP_Transport
  43  *
  44  * @brief Specialization of the base TAO_Transport class to handle the
  45  *  IIOP protocol.
  46  *
  47  * Specialization of the base TAO_Transport class to handle the IIOP
  48  * protocol.
  49  */
  50 class TAO_Export TAO_IIOP_Transport : public TAO_Transport
  51 {
  52 public:
  53   /// Constructor.
  54   TAO_IIOP_Transport (TAO_IIOP_Connection_Handler *handler,
  55                       TAO_ORB_Core *orb_core);
  56
  57 protected:
  58   /// Destructor
  59   /**
  60    * Protected destructor to enforce proper memory management through
  61    * the reference counting mechanism.
  62    */
  63   virtual ~TAO_IIOP_Transport (void);
  64
  65   /** @name Overridden Template Methods
  66    *
  67    * Please check the documentation in "tao/Transport.h" for more
  68    * details.
  69    */
  70   //@{
  71
  72   virtual ACE_Event_Handler * event_handler_i (void);
  73
  74   virtual ssize_t send (iovec *iov, int iovcnt,
  75                         size_t &bytes_transferred,
  76                         const ACE_Time_Value *timeout = 0);
  77
  78 #if TAO_HAS_SENDFILE == 1
  79   virtual ssize_t sendfile (TAO_MMAP_Allocator * allocator,
  80                             iovec * iov,
  81                             int iovcnt,
  82                             size_t &bytes_transferred,
  83                             TAO::Transport::Drain_Constraints const & dc);
  84 #endif  /* TAO_HAS_SENDFILE==1 */
  85
  86   virtual ssize_t recv (char *buf, size_t len, const ACE_Time_Value *s = 0);
  87
  88 public:
  89   /// Bridge method to call a similar method on the connection handler
  90   void update_protocol_properties (int send_buffer_size,
  91                                    int recv_buffer_size,
  92                                    int no_delay,
  93                                    int enable_network_priority);
  94
  95   /// @todo These methods IMHO should have more meaningful
  96   /// names. The names seem to indicate nothing.
  97   virtual int send_request (TAO_Stub *stub,
  98                             TAO_ORB_Core *orb_core,
  99                             TAO_OutputCDR &stream,
 100                             TAO_Message_Semantics message_semantics,
 101                             ACE_Time_Value *max_wait_time);
 102
 103   virtual int send_message (TAO_OutputCDR &stream,
 104                             TAO_Stub *stub = 0,
 105                             TAO_ServerRequest *request = 0,
 106                             TAO_Message_Semantics message_semantics = TAO_Message_Semantics (),
 107                             ACE_Time_Value *max_time_wait = 0);
 108
 109   virtual int tear_listen_point_list (TAO_InputCDR &cdr);
 110
 111   virtual TAO_Connection_Handler * connection_handler_i (void);
 112   //@}
 113
 114 private:
 115   /// Set the Bidirectional context info in the service context list
 116   void set_bidir_context_info (TAO_Operation_Details &opdetails);
 117
 118   /// Add the listen points in @a acceptor to the @a listen_point_list
 119   /// if this connection is in the same interface as that of the
 120   /// endpoints in the @a acceptor
 121   int get_listen_point (IIOP::ListenPointList &listen_point_list,
 122                         TAO_Acceptor *acceptor);
 123 private:
 124   /// The connection service handler used for accessing lower layer
 125   /// communication protocols.
 126   TAO_IIOP_Connection_Handler *connection_handler_;
 127 };
 128
 129 TAO_END_VERSIONED_NAMESPACE_DECL
 130
 131 #endif /* TAO_HAS_IIOP && TAO_HAS_IIOP != 0 */
 132
 133 #include /**/ "ace/post.h"
 134
 135 #endif  /* TAO_IIOP_TRANSPORT_H */