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/* -*- C++ -*- */
//=============================================================================
/**
* @file Custom_Handler.h
*
* $Id$
*
* This is a custom event handler to be used with the thread timer queue
* adapter, and its appropriate upcall.
*
*
* @author Alon Diamant <diamant.alon@gmail.com>
*/
//=============================================================================
#ifndef _CUSTOM_HANDLER_H_
#define _CUSTOM_HANDLER_H_
#include "ace/Timer_Queue.h"
/**
* @class Custom_Handler
*
* @brief Custom event handler for the timer queue timeout events.
*
* The <on_timeout> hook method prints out the current time,
* prints the time when this timer expired and deletes "this".
*/
class Custom_Handler
{
public:
Custom_Handler (const ACE_Time_Value &expiration_time);
virtual ~Custom_Handler (void);
// Set the custom handler's id
void set_id (int id);
// Call back hook.
virtual int on_timeout(const ACE_Time_Value ¤t_time,
const void *arg);
private:
// Store the expected time of expiration, it is used to print a nice
// message saying how much delay was at the actual expiration time.
ACE_Time_Value expires_;
// Store an "id" for the Handler, which is only use to print better
// messages.
int id_;
};
/// CWorkItemAndParamTupleUpcall
///
/// Implements the Upcall interface used by the ACE_Timer_Queue, specifically for the
/// IWorkItem interface.
class Custom_Handler_Upcall
{
public:
typedef ACE_Timer_Queue_T<Custom_Handler*,
Custom_Handler_Upcall,
ACE_Null_Mutex> TTimerQueue;
// Default constructor
Custom_Handler_Upcall()
{
}
// Destructor.
~Custom_Handler_Upcall()
{
}
// This method is called when a timer is registered.
int registration(TTimerQueue& timer_queue,
Custom_Handler* handler,
const void* arg);
// This method is called before the timer expires.
int preinvoke(TTimerQueue& timer_queue,
Custom_Handler* handler,
const void* arg,
int recurring_timer,
const ACE_Time_Value& cur_time,
const void*& upcall_act);
// This method is called when the timer expires.
int timeout (TTimerQueue& timer_queue,
Custom_Handler* handler,
const void* arg,
int recurring_timer,
const ACE_Time_Value& cur_time);
// This method is called after the timer expires.
int postinvoke(TTimerQueue& timer_queue,
Custom_Handler* handler,
const void* arg,
int recurring_timer,
const ACE_Time_Value& cur_time,
const void* upcall_act);
// This method is called when a handler is canceled
int cancel_type(TTimerQueue& timer_queue,
Custom_Handler* handler,
int dont_call,
int& requires_reference_counting);
// This method is called when a timer is canceled
int cancel_timer(TTimerQueue& timer_queue,
Custom_Handler* handler,
int dont_call,
int requires_reference_counting);
// This method is called when the timer queue is destroyed and
// the timer is still contained in it
int deletion(TTimerQueue& timer_queue,
Custom_Handler* handler,
const void* arg);
};
#endif
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