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eodev/eo/src/utils/eoUpdater.h
2004-06-15 07:09:57 +00:00

154 lines
4.6 KiB
C++

// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
//-----------------------------------------------------------------------------
// eoUpdater.h
// (c) Maarten Keijzer, Marc Schoenauer and GeNeura Team, 2000
/*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Contact: todos@geneura.ugr.es, http://geneura.ugr.es
Marc.Schoenauer@polytechnique.fr
mkeijzer@dhi.dk
*/
//-----------------------------------------------------------------------------
#ifndef _eoUpdater_h
#define _eoUpdater_h
#include <string>
#include <eoFunctor.h>
#include <utils/eoState.h>
#include <utils/eoParam.h>
/**
eoUpdater is a generic procudere for updating whatever you want.
Yet again an empty name
*/
class eoUpdater : public eoF<void>
{
public:
virtual void lastCall() {}
virtual std::string className(void) const { return "eoUpdater"; }
};
/**
an eoUpdater that simply increments a counter
*/
template <class T>
class eoIncrementor : public eoUpdater
{public :
/** Default Ctor - requires a reference to the thing to increment */
eoIncrementor(T& _counter, T _stepsize = 1) : counter(_counter), stepsize(_stepsize) {}
/** Simply increments */
virtual void operator()()
{
counter += stepsize;
}
virtual std::string className(void) const { return "eoIncrementor"; }
private:
T& counter;
T stepsize;
};
/** an eoUpdater that is an eoValueParam (and thus OWNS its counter)
* Mandatory for generation counter in make_checkpoint
*/
template <class T>
class eoIncrementorParam : public eoUpdater, public eoValueParam<T>
{
public :
/** Default Ctor : a name and optionally an increment*/
eoIncrementorParam( std::string _name, T _stepsize = 1) :
eoValueParam<T>(T(0), _name), stepsize(_stepsize) {}
/** Ctor with a name and non-zero initial value
* and mandatory stepSize to remove ambiguity
*/
eoIncrementorParam( std::string _name, T _countValue, T _stepsize) :
eoValueParam<T>(_countValue, _name), stepsize(_stepsize) {}
/** Simply increments */
virtual void operator()()
{
value() += stepsize;
}
virtual std::string className(void) const { return "eoIncrementorParam"; }
private:
T stepsize;
};
#include <time.h>
/**
an eoUpdater that saves a state every given time interval
*/
class eoTimedStateSaver : public eoUpdater
{
public :
eoTimedStateSaver(time_t _interval, const eoState& _state, std::string _prefix = "state", std::string _extension = "sav") : state(_state),
interval(_interval), last_time(time(0)), first_time(time(0)),
prefix(_prefix), extension(_extension) {}
void operator()(void);
virtual std::string className(void) const { return "eoTimedStateSaver"; }
private :
const eoState& state;
const time_t interval;
time_t last_time;
const time_t first_time;
const std::string prefix;
const std::string extension;
};
/**
an eoUpdater that saves a state every given generations
*/
class eoCountedStateSaver : public eoUpdater
{
public :
eoCountedStateSaver(unsigned _interval, const eoState& _state, std::string _prefix, bool _saveOnLastCall, std::string _extension = "sav", unsigned _counter = 0)
: state(_state), interval(_interval), counter(_counter),
saveOnLastCall(_saveOnLastCall),
prefix(_prefix), extension(_extension) {}
eoCountedStateSaver(unsigned _interval, const eoState& _state, std::string _prefix = "state", std::string _extension = "sav", unsigned _counter = 0)
: state(_state), interval(_interval), counter(_counter),
saveOnLastCall(true),
prefix(_prefix), extension(_extension) {}
virtual void lastCall(void);
void operator()(void);
virtual std::string className(void) const { return "eoCountedStateSaver"; }
private :
void doItNow(void);
const eoState& state;
const unsigned interval;
unsigned counter;
bool saveOnLastCall;
const std::string prefix;
const std::string extension;
};
#endif