98 lines
3.2 KiB
C++
98 lines
3.2 KiB
C++
/*
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* Copyright © 2008-2023 Dynare Team
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*
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* This file is part of Dynare.
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*
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* Dynare is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Dynare 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 Dynare. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "dynamic_dll.hh"
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#include <cassert>
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#include <iostream>
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DynamicModelDLL::DynamicModelDLL(const std::string& modName, int ntt_arg, int order) :
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DynamicModelAC(ntt_arg)
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{
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std::string fName;
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#if !defined(__CYGWIN32__) && !defined(_WIN32)
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fName = "./";
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#endif
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fName += "+" + modName + "/dynamic" + MEXEXT;
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#if defined(__CYGWIN32__) || defined(_WIN32)
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dynamicHinstance = LoadLibrary(fName.c_str());
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#else // GNU/Linux or Mac
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dynamicHinstance = dlopen(fName.c_str(), RTLD_NOW);
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#endif
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if (!dynamicHinstance)
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throw DynareException(__FILE__, __LINE__,
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"Error when loading " + fName
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#if !defined(__CYGWIN32__) && !defined(_WIN32)
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+ ": " + dlerror()
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#endif
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);
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dynamic_tt.resize(order + 1);
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std::tie(dynamic_resid, dynamic_tt[0])
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= getSymbolsFromDLL<dynamic_resid_or_g1_fct>("dynamic_resid", fName);
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std::tie(dynamic_g1, dynamic_tt[1])
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= getSymbolsFromDLL<dynamic_resid_or_g1_fct>("dynamic_g1", fName);
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dynamic_higher_deriv.resize(std::max(0, order - 1));
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for (int i = 2; i <= order; i++)
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std::tie(dynamic_higher_deriv[i - 2], dynamic_tt[i])
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= getSymbolsFromDLL<dynamic_higher_deriv_fct>("dynamic_g" + std::to_string(i), fName);
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tt.resize(ntt);
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}
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DynamicModelDLL::~DynamicModelDLL()
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{
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#if defined(__CYGWIN32__) || defined(_WIN32)
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auto result = FreeLibrary(dynamicHinstance);
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if (result == 0)
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{
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std::cerr << "Can't free the *_dynamic DLL" << std::endl;
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exit(EXIT_FAILURE);
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}
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#else
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dlclose(dynamicHinstance);
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#endif
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}
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void
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DynamicModelDLL::eval(const Vector& y, const Vector& x, const Vector& modParams,
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const Vector& ySteady, Vector& residual,
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std::vector<TwoDMatrix>& md) noexcept(false)
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{
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assert(md.size() == dynamic_tt.size() - 1);
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for (size_t i = 0; i < dynamic_tt.size(); i++)
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{
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dynamic_tt[i](y.base(), x.base(), 1, modParams.base(), ySteady.base(), 0, tt.data());
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if (i == 0)
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dynamic_resid(y.base(), x.base(), 1, modParams.base(), ySteady.base(), 0, tt.data(),
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residual.base());
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else if (i == 1)
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dynamic_g1(y.base(), x.base(), 1, modParams.base(), ySteady.base(), 0, tt.data(),
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md[0].base());
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else
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dynamic_higher_deriv[i - 2](y.base(), x.base(), 1, modParams.base(), ySteady.base(), 0,
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tt.data(), &md[i - 1].get(0, 0), &md[i - 1].get(0, 1),
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&md[i - 1].get(0, 2));
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}
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}
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