mirror of
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75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#ifndef TIMER_H
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#define TIMER_H
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#include "base/i2-base.h"
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#include "base/object.h"
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#include <boost/signals2.hpp>
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namespace icinga {
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struct TimerNextExtractor;
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/**
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* A timer that periodically triggers an event.
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*
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* @ingroup base
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*/
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class I2_BASE_API Timer : public Object
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{
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public:
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typedef shared_ptr<Timer> Ptr;
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typedef weak_ptr<Timer> WeakPtr;
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Timer(void);
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void SetInterval(double interval);
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double GetInterval(void) const;
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static void AdjustTimers(double adjustment);
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void Start(void);
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void Stop(void);
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void Reschedule(double next = -1);
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double GetNext(void) const;
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boost::signals2::signal<void(const Timer::Ptr&)> OnTimerExpired;
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static void Initialize(void);
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static void Uninitialize(void);
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private:
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double m_Interval; /**< The interval of the timer. */
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double m_Next; /**< When the next event should happen. */
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bool m_Started; /**< Whether the timer is enabled. */
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void Call();
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static void TimerThreadProc(void);
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friend struct TimerNextExtractor;
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};
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}
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#endif /* TIMER_H */
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