111 lines
2.8 KiB
C++
111 lines
2.8 KiB
C++
// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
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//-----------------------------------------------------------------------------
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// eoUpdatable.h
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// (c) Maarten Keijzer, Marc Schoenauer and GeNeura Team, 2000
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/*
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Contact: todos@geneura.ugr.es, http://geneura.ugr.es
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Marc.Schoenauer@polytechnique.fr
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mkeijzer@dhi.dk
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*/
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//-----------------------------------------------------------------------------
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#ifndef _eoUpdatable_h
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#define _eoUpdatable_h
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#include <utils/eoUpdater.h>
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/**
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eoUpdatable is a generic class for adding updatation to an existing class
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Just says it has an update() method
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*/
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class eoUpdatable
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{
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public:
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/** @brief Virtual destructor */
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virtual ~eoUpdatable() {};
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virtual void update() = 0;
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};
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/**
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A base class to actually update an eoUpdatable object
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*/
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class eoDynUpdater : public eoUpdater
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{public :
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eoDynUpdater(eoUpdatable & _toUpdate) : toUpdate(_toUpdate) {};
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virtual void operator()()
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{
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toUpdate.update();
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}
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private:
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eoUpdatable& toUpdate;
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};
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/**
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An eoUpdater to update an eoUpdatable object every given time interval
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*/
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class eoTimedDynUpdate : public eoDynUpdater
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{
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public :
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eoTimedDynUpdate(eoUpdatable & _toUpdate, time_t _interval) :
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eoDynUpdater(_toUpdate),
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interval(_interval), last_time(time(0)), first_time(time(0)) {}
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void operator()(void)
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{
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time_t now = time(0);
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if (now >= last_time + interval)
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{
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last_time = now;
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eoDynUpdater::operator() ();
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}
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}
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private :
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const time_t interval;
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time_t last_time;
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const time_t first_time;
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};
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/**
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An eoUpdater to update an eoUpdatable object every given tic
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*/
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class eoCountedDynUpdate : public eoDynUpdater
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{
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public :
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eoCountedDynUpdate(eoUpdatable & _toUpdate, unsigned _interval)
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: eoDynUpdater(_toUpdate), interval(_interval), counter(0) {}
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void operator()(void)
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{
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if (++counter % interval == 0)
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{
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eoDynUpdater::operator() ();
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}
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}
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private :
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const unsigned interval;
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unsigned counter;
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};
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#endif
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