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// -*- C++ -*-
//=============================================================================
/**
* @file Timer_Helper.h
*
* $Id$
*
* This class is registered with the Reactor and extends from the
* event handler.It is a friend of the TAO_Time_Service_Clerk and
* helps to update the clerk's notion of globally synchronized
* time. This class obviates the need for multiple inheritance in
* the clerk.
*
* @author Vishal Kachroo <vishal@cs.wustl.edu>
*/
//=============================================================================
#ifndef TIMER_HELPER_H
#define TIMER_HELPER_H
#include /**/ "ace/pre.h"
#include "ace/Event_Handler.h"
#include "ace/Containers.h"
#include "time_export.h"
#include "orbsvcs/orbsvcs/TimeServiceS.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
class TAO_Time_Service_Clerk;
/**
* @class Timer_Helper
*
* @brief Timer Helper for the clerk.
*
* The handle timeout method of this class is called periodically
* by the reactor. This method updates the clerk's notion of
* globally synchronized time by contacting the various Time
* Servers.
*/
class TAO_Time_Export Timer_Helper : public ACE_Event_Handler
{
public:
// = Initialization and termination methods.
/// Constructor.
Timer_Helper (void);
/// Destructor.
~Timer_Helper (void);
/// Constructor that sets the clerk.
Timer_Helper (TAO_Time_Service_Clerk *clerk);
/// This method is called periodically by the Reactor to update the
/// clerk's time.
int handle_timeout (const ACE_Time_Value &time,
const void *arg);
protected:
/// Clerk's instance that this class helps to update time.
TAO_Time_Service_Clerk *clerk_;
/// The set of server IORs.
typedef ACE_Array_Base<CosTime::TimeService_var> IORS;
};
#include /**/ "ace/post.h"
#endif /* TIMER_HELPER_H */
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