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/** \file IEventHandler.h
** \date 2005-12-07
** \author grymse@alhem.net
**/
/*
Copyright (C) 2005,2007 Anders Hedstrom
This library is made available under the terms of the GNU GPL.
If you would like to use this library in a closed-source application,
a separate license agreement is available. For information about
the closed-source license agreement for the C++ sockets library,
please visit http://www.alhem.net/Sockets/license.html and/or
email license@alhem.net.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _SOCKETS_IEventHandler_H
#define _SOCKETS_IEventHandler_H
#include "sockets-config.h"
#ifdef SOCKETS_NAMESPACE
namespace SOCKETS_NAMESPACE {
#endif
class IEventOwner;
/** Timer event handler pure virtual base class.
\ingroup timer */
class IEventHandler
{
public:
virtual ~IEventHandler() {}
/** Return time left until next event.
\param tv Time struct that will be filled by method
\return true if time is set for next event */
virtual bool GetTimeUntilNextEvent(struct timeval *) = 0;
/** Will fire events whose time has come. */
virtual void CheckEvents() = 0;
/** Schedule event for an owner.
\param from Event owner
\param sec Seconds until event
\param usec Microseconds until event */
virtual long AddEvent(IEventOwner *,long sec,long usec) = 0;
/** Clear all events for a specific owner. */
virtual void ClearEvents(IEventOwner *) = 0;
/** Remove one specific event for an event owner. */
virtual void RemoveEvent(IEventOwner *,long) = 0;
};
#ifdef SOCKETS_NAMESPACE
}
#endif
#endif // _SOCKETS_IEventHandler_H
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