DelayConnection.h

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/* 
* Copyright 2014-2018 Friedemann Zenke
*
* This file is part of Auryn, a simulation package for plastic
* spiking neural networks.
* 
* Auryn 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 3 of the License, or
* (at your option) any later version.
* 
* Auryn 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 Auryn.  If not, see <http://www.gnu.org/licenses/>.
*
* If you are using Auryn or parts of it for your work please cite:
* Zenke, F. and Gerstner, W., 2014. Limits to high-speed simulations 
* of spiking neural networks using general-purpose computers. 
* Front Neuroinform 8, 76. doi: 10.3389/fninf.2014.00076
*/

#ifndef DELAYCONNECTION_H_
#define DELAYCONNECTION_H_

#include "auryn_definitions.h"
#include "AurynVector.h"
#include "SparseConnection.h"
#include "SpikeDelay.h"

#include <boost/random/mersenne_twister.hpp>
#include <boost/random/uniform_int.hpp>
#include <boost/random/variate_generator.hpp>
#include <boost/random/exponential_distribution.hpp>

#include <boost/serialization/vector.hpp>
#include <boost/serialization/map.hpp>

#include <boost/archive/text_oarchive.hpp> 
#include <boost/archive/text_iarchive.hpp> 
#include <boost/archive/binary_oarchive.hpp> 
#include <boost/archive/binary_iarchive.hpp> 

namespace auryn {

class DelayConnection : public SparseConnection
{
private:
        SpikeDelay * src_dly;

        void init();
        void free();

protected:
        void virtual_serialize(boost::archive::binary_oarchive & ar, const unsigned int version ) 
        {
                SparseConnection::virtual_serialize(ar,version);
                ar & *src_dly;
        }

        void virtual_serialize(boost::archive::binary_iarchive & ar, const unsigned int version ) 
        {
                SparseConnection::virtual_serialize(ar,version);
                ar & *src_dly;
        }

public:
        DelayConnection(NeuronID rows, NeuronID cols);

        DelayConnection(
                        SpikingGroup * source, 
                        NeuronGroup * destination, 
                        AurynWeight weight, 
                        AurynFloat sparseness=0.05, 
                        TransmitterType transmitter=GLUT, 
                        string name="DelayConnection");

        virtual ~DelayConnection();


        virtual void propagate();

        void set_delay_steps(unsigned int delay); 

        void set_delay(double delay=1e-3); 
};

}

#endif /*DELAYCONNECTION_H_*/