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// This may look like C, but it's really -*- C++ -*-
// -*- C++ -*-
// ===================================================================
/**
* @file DIOP_Transport.h
*
* $Id$
*
* @author Originally by Fred Kuhns <fredk@cs.wustl.edu>
* @author Modified by Balachandran Natarajan <bala@cs.wustl.edu>
*/
// ===================================================================
#ifndef TAO_DIOP_TRANSPORT_H
#define TAO_DIOP_TRANSPORT_H
#include "ace/pre.h"
#include "tao/Transport.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/SOCK_Stream.h"
#include "ace/Synch.h"
#include "ace/Svc_Handler.h"
#include "diop_export.h"
// Forward decls.
class TAO_DIOP_Connection_Handler;
class TAO_ORB_Core;
class TAO_Operation_Details;
class TAO_Pluggable_Messaging;
class TAO_Acceptor;
// Service Handler for this transport
typedef ACE_Svc_Handler<ACE_SOCK_STREAM, ACE_NULL_SYNCH>
TAO_DIOP_SVC_HANDLER;
/**
* @class TAO_DIOP_Transport
*
* @brief Specialization of the base TAO_Transport class to handle the
* DIOP protocol.
*
*
*
*/
class TAO_DIOP_Export TAO_DIOP_Transport : public TAO_Transport
{
public:
/// Constructor.
TAO_DIOP_Transport (TAO_DIOP_Connection_Handler *handler,
TAO_ORB_Core *orb_core,
CORBA::Boolean flag);
/// Default destructor.
~TAO_DIOP_Transport (void);
protected:
/** @name Overridden Template Methods
*
* These are implementations of template methods declared by TAO_Transport.
*/
//@{
virtual ACE_Event_Handler *event_handler_i (void);
virtual TAO_Pluggable_Messaging *messaging_object (void);
/// Write the complete Message_Block chain to the connection.
virtual ssize_t send_i (const ACE_Message_Block *mblk,
const ACE_Time_Value *s = 0,
size_t *bytes_transferred = 0);
/// Read len bytes from into buf.
virtual ssize_t recv_i (char *buf,
size_t len,
const ACE_Time_Value *s = 0);
/// Read and process the message from the connection. The processing
/// of the message is done by delegating the work to the underlying
/// messaging object
virtual int read_process_message (ACE_Time_Value *max_time_value = 0,
int block =0);
virtual int register_handler_i (void);
/// Method to do whatever it needs to do when the connection
/// handler is being closed and destroyed.
virtual void transition_handler_state_i (void);
public:
/// @@TODO: These methods IMHO should have more meaningful
/// names. The names seem to indicate nothing.
virtual int send_request (TAO_Stub *stub,
TAO_ORB_Core *orb_core,
TAO_OutputCDR &stream,
int twoway,
ACE_Time_Value *max_wait_time);
virtual int send_message (TAO_OutputCDR &stream,
TAO_Stub *stub = 0,
int twoway = 1,
ACE_Time_Value *max_time_wait = 0);
/// Initialising the messaging object
virtual int messaging_init (CORBA::Octet major,
CORBA::Octet minor);
private:
/// Process the message that we have read
int process_message (void);
// @@ Frank : Not needed
/*
/// Set the Bidirectional context info in the service context list
void set_bidir_context_info (TAO_Operation_Details &opdetails);
/// Add the listen points in <acceptor> to the <listen_point_list>
/// if this connection is in the same interface as that of the
/// endpoints in the <acceptor>
int get_listen_point (DIOP::ListenPointList &listen_point_list,
TAO_Acceptor *acceptor);
*/
private:
/// The connection service handler used for accessing lower layer
/// communication protocols.
TAO_DIOP_Connection_Handler *connection_handler_;
/// Our messaging object.
TAO_Pluggable_Messaging *messaging_object_;
};
#if defined (__ACE_INLINE__)
#include "DIOP_Transport.i"
#endif /* __ACE_INLINE__ */
#include "ace/post.h"
#endif /* TAO_DIOP_TRANSPORT_H */
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