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// This may look like C, but it's really -*- C++ -*-
// ===================================================================
/**
* @file IIOP_Connection_Handler.h
*
* $Id$
*
* @author Originally by Chris Cleeland as IIOP_Connect.h
* @author modified by Balachandran Natarajan <bala@cs.wustl.edu>
*/
// ===================================================================
#ifndef TAO_IIOP_CONNECTION_HANDLER_H
#define TAO_IIOP_CONNECTION_HANDLER_H
#include /**/ "ace/pre.h"
#include "ace/Svc_Handler.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
#pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/SOCK_Stream.h"
#include "tao/Connection_Handler.h"
#include "tao/Basic_Types.h"
// Service Handler for this transport
typedef ACE_Svc_Handler<ACE_SOCK_STREAM, ACE_NULL_SYNCH>
TAO_IIOP_SVC_HANDLER;
#if defined ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION_EXPORT
template class TAO_Export ACE_Svc_Handler<ACE_SOCK_STREAM, ACE_NULL_SYNCH>;
#endif /* ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION_EXPORT */
namespace IIOP
{
class ListenPointList;
}
// Forward Decls
class TAO_Pluggable_Messaging;
// ****************************************************************
/**
* @class TAO_IIOP_Properties
*
* @brief TCP protocol properties specification for a set of
* connections.
*
*/
#define IPDSFIELD_DSCP_DEFAULT 0x00
class TAO_Export TAO_IIOP_Properties
{
public:
int send_buffer_size;
int recv_buffer_size;
int no_delay;
int enable_network_priority;
};
// ****************************************************************
/**
* @class TAO_IIOP_Connection_Handler
*
* @brief Handles requests on a single connection.
*
* The Connection handler which is common for the Acceptor and
* the Connector
*/
class TAO_Export TAO_IIOP_Connection_Handler : public TAO_IIOP_SVC_HANDLER,
public TAO_Connection_Handler
{
public:
TAO_IIOP_Connection_Handler (ACE_Thread_Manager * = 0);
/// Constructor. <arg> parameter is used by the Acceptor to pass the
/// protocol configuration properties for this connection.
TAO_IIOP_Connection_Handler (TAO_ORB_Core *orb_core,
CORBA::Boolean flag,
void *arg);
/// Destructor.
~TAO_IIOP_Connection_Handler (void);
/// Called by the <Strategy_Acceptor> when the handler is completely
/// connected. Argument is unused.
virtual int open (void *);
/// Close called by the Acceptor or Connector when connection
/// establishment fails.
int close (u_long = 0);
//@{
/** @name Event Handler overloads
*/
virtual int resume_handler (void);
virtual int close_connection (void);
virtual int handle_input (ACE_HANDLE);
virtual int handle_output (ACE_HANDLE);
virtual int handle_close (ACE_HANDLE, ACE_Reactor_Mask);
virtual int handle_timeout (const ACE_Time_Value ¤t_time,
const void *act = 0);
//@}
/// Add ourselves to Cache.
int add_transport_to_cache (void);
/// Process the <listen_list>
int process_listen_point_list (IIOP::ListenPointList &listen_list);
///Check if network priority needs to be enabled
int enable_network_priority (void);
///Set the Diff-Serv codepoint if the Policy dicates the setting of Network Priority
int set_dscp_codepoint (void);
int set_dscp_codepoint (int tos);
/// Update the tcp properties of the hanlder to the most recent
/// properties set after the last invocation
virtual void update_protocol_properties (int send_buffer_size,
int recv_buffer_size,
int no_delay,
int enable_network_priority);
virtual int open_handler (void *);
protected:
/// Constructor that could be used by the derived classes.
/**
* Sometimes new pluggbale protocols which have similarties with
* IIOP may be tempted to this class for their use. Classical
* example being that of IIOP_SSL_Connection_Handler. This
* constructor just initializes its base class and sets all of its
* contents to the default value, if any
*/
TAO_IIOP_Connection_Handler (TAO_ORB_Core *orb_core,
void *arg);
//@{
/**
* @name TAO_Connection Handler overloads
*/
virtual int release_os_resources (void);
//@}
private:
/// TCP configuration for this connection.
TAO_IIOP_Properties tcp_properties_;
/// Stores the type of service value.
int dscp_codepoint_;
};
#if defined (__ACE_INLINE__)
#include "tao/IIOP_Connection_Handler.i"
#endif /* __ACE_INLINE__ */
#include /**/ "ace/post.h"
#endif /* TAO_IIOP_CONNECTION_HANDLER_H */
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