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//-*- C++ -*-
// $Id$
//
// ============================================================================
//
// = LIBRARY
// TAO
//
// = FILENAME
// Fault_Tolerance_Service.h
//
// = DESCRIPTION
// A collection of the ORB and ORB core related properties that are
// specific to FT service. The TAO_ORB_Core holds an instance of this
// class.
//
// = AUTHOR
// Bala Natarajan <bala@cs.wustl.edu>
// ============================================================================
#ifndef TAO_FAULT_TOLERANCE_SERVICE_H
#define TAO_FAULT_TOLERANCE_SERVICE_H
#include "ace/pre.h"
#include "ace/SString.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "tao/corbafwd.h"
#if defined(_MSC_VER)
#if (_MSC_VER >= 1200)
#pragma warning(push)
#endif /* _MSC_VER >= 1200 */
#pragma warning(disable:4250)
#endif /* _MSC_VER */
class TAO_Service_Callbacks;
class TAO_ORB_Core;
class TAO_Export TAO_Fault_Tolerance_Service
{
// = TITLE
// TAO_Fault_Tolerant_Service
//
// = DESCRIPTION
// A collection of ORB & ORB_Core related stuff that is needed at
// the ORB level. The ORB Core would carry an instance of this
// class and invoke methods on this.
// Note: This collection would be really useful when we have
// logging in place. The contents of this class can be logged at
// regular check point intervals.
public:
TAO_Fault_Tolerance_Service (void);
// Ctor
~TAO_Fault_Tolerance_Service (void);
// Dtor
void init (TAO_ORB_Core *orb_core);
// Initialise the internal data structures
TAO_Service_Callbacks *service_callback (void);
// Return the underlying callback object
const ACE_CString &client_id (void);
// Return the underlying <ft_object_id>
void client_id (const char *id);
// Set the client id
CORBA::Long retention_id (void);
// Generate and return a new retention id
private:
TAO_Service_Callbacks *ft_service_callback_;
// hook to callback on to the service
ACE_CString ft_object_id_;
// The object id that would be used if the ft service is loaded.
CORBA::Long ft_object_retention_id_;
// This and the <ft_object_id_> act as unique identifiers for the
// request sent from the source Object. Modification of this value
// is done by the loaded FT
ACE_Lock *ft_object_retention_id_lock_;
// Lock for the retention id
// NOTE: At a glance this retention id can be easily mistaken for a
// request id in a GIOP request. But the purpose served are a lot
// more than what a RequestId does for GIOP. So, we have a unique
// generator with a lock to protect from different threads accessing
// this.
};
#if defined (__ACE_INLINE__)
# include "tao/Fault_Tolerance_Service.i"
#endif /* __ACE_INLINE__ */
#include "ace/post.h"
#endif /*TAO_FAULT_TOLERANCE_SERVICE_H*/
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