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// This may look like C, but it's really -*- C++ -*-
//=============================================================================
/**
* @file Endpoint.h
*
* $Id$
*
* Endpoint interface, part of TAO pluggable protocol framework.
*
*
* @author Marina Spivak <marina@cs.wustl.edu>
*/
//=============================================================================
#ifndef TAO_ENDPOINT_H
#define TAO_ENDPOINT_H
#include "ace/pre.h"
#include "tao/corbafwd.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
/**
* @class TAO_Endpoint
*
* @brief Defines the Endpoint interface in the Pluggable Protocol
* framework.
*
* Lightweight encapsulation of addressing information for a
* single acceptor endpoint. In other words, Endpoint represents
* a single point of contact for the server, and is the smallest
* unit of addressing information necessary for a client to connect
* to a server.
* A Profile contains one or more Endpoints, i.e., knows of
* one or more ways to contact server(s).
*/
class TAO_Export TAO_Endpoint
{
public:
/// Constructor.
TAO_Endpoint (CORBA::ULong tag,
CORBA::Short priority = -1);
/// Destructor.
virtual ~TAO_Endpoint (void);
/// IOP protocol tag accessor.
CORBA::ULong tag (void) const;
/// <priority_> attribute setter.
void priority (CORBA::Short priority);
/// <priority_> attribute getter.
CORBA::Short priority (void) const;
// = Abstract methods to be implemented by concrete subclasses.
/// Return true if this endpoint is equivalent to <other_endpoint>. Two
/// endpoints are equivalent iff their port and host are the same.
virtual CORBA::Boolean is_equivalent (const TAO_Endpoint *other_endpoint) = 0;
/// Endpoints can be stringed in a list. Return the next endpoint in
/// the list, if any.
virtual TAO_Endpoint *next (void) = 0;
/**
* Return a string representation for the address. Returns
* -1 if buffer is too small. The purpose of this method is to
* provide a general interface to the underlying address object's
* addr_to_string method. This allows the protocol implementor to
* select the appropriate string format.
*/
virtual int addr_to_string (char *buffer, size_t length) = 0;
/// This method is used when a connection has been reset, requiring
/// the hint to be cleaned up and reset to NULL.
virtual void reset_hint (void) = 0;
/// This method returns a copy of the corresponding endpoints by
/// allocation memory
virtual TAO_Endpoint *duplicate (void) = 0;
/// Return a hash value for this object.
virtual CORBA::ULong hash (void) = 0;
protected:
/// Lock for the address lookup.
/// @@todo: This lock should be strategised so that we dont lock in
/// single threaded configurations. I am not able to do this now as
/// most of the information is available in the ORB_Core which is
/// not available here...
TAO_SYNCH_MUTEX addr_lookup_lock_;
private:
// Endpoints should not be copied.
ACE_UNIMPLEMENTED_FUNC (TAO_Endpoint (const TAO_Endpoint&))
ACE_UNIMPLEMENTED_FUNC (void operator= (const TAO_Endpoint&))
/// IOP tag, identifying the protocol for which this endpoint
/// contains addressing info.
CORBA::ULong tag_;
/**
* CORBA priority of the acceptor this Endpoint is representing.
* This is part of TAO 'prioritized endpoints' architecture, and is
* currently used for RTCORBA only.
*/
CORBA::Short priority_;
};
#if defined (__ACE_INLINE__)
# include "tao/Endpoint.i"
#endif /* __ACE_INLINE__ */
#include "ace/post.h"
#endif /* TAO_PROFILE_H */
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