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// $Id$
/**
* @file Pulser.h
*
* Header file for the Pulser class.
*
* @author Nanbor Wang <nanbor@cse.wustl.edu>
*/
#ifndef PULSER_H
#define PULSER_H
#include "tao/corba.h"
#include "ace/Thread_Manager.h"
#include "ace/Task.h"
namespace PTImpl
{
// Forward decl.
class Pulse_Handler
{
public:
/// Helper function to be called back by Pulse_Handler
virtual void pulse (void) = 0;
};
/**
* @brief Active pulse generater
*/
class Pulser : public ACE_Task_Base
{
public:
// Default constructor
Pulser (Pulse_Handler *cb);
~Pulser ();
int open (void *args = 0);
int close (u_long flags = 0);
int start (CORBA::Long hertz);
int stop (void);
int active (void);
// Handle the timeout.
virtual int handle_timeout (const ACE_Time_Value &tv,
const void *arg);
// Called when <Time_Handler> is removed.
virtual int handle_close (ACE_HANDLE handle,
ACE_Reactor_Mask close_mask);
virtual int svc (void);
private:
/// Tracking whether we are actively generating pulse or not.
long active_;
/// Flag to indicate completion of this active object.
int done_;
/// The timer id we are waiting.
int tid_;
Pulse_Handler *pulser_callback_;
ACE_Thread_Manager thr_mgr_;
};
}
#endif /* PULSER_H */
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