110 lines
3.7 KiB
C++
110 lines
3.7 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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#ifndef _DYNAMIC_DLL_HH
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#define _DYNAMIC_DLL_HH
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#if defined(_WIN32) || defined(__CYGWIN32__)
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# ifndef NOMINMAX
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# define NOMINMAX // Do not define "min" and "max" macros
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# endif
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# include <windows.h>
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#else
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# include <dlfcn.h> // unix/linux DLL (.so) handling routines
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#endif
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#include <string>
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#include <utility>
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#include <vector>
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#include "dynare_exception.hh"
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#include "dynamic_abstract_class.hh"
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using dynamic_tt_fct
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= void (*)(const double* y, const double* x, int nb_row_x, const double* params,
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const double* steady_state, int it_, double* T);
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using dynamic_resid_or_g1_fct
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= void (*)(const double* y, const double* x, int nb_row_x, const double* params,
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const double* steady_state, int it_, const double* T, double* resid_or_g1);
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using dynamic_higher_deriv_fct = void (*)(const double* y, const double* x, int nb_row_x,
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const double* params, const double* steady_state, int it_,
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const double* T, double* g_i, double* g_j, double* g_v);
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/**
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* creates pointer to Dynamic function inside <model>_dynamic.dll
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* and handles calls to it.
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**/
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class DynamicModelDLL : public DynamicModelAC
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{
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private:
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std::vector<dynamic_tt_fct> dynamic_tt;
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dynamic_resid_or_g1_fct dynamic_resid, dynamic_g1;
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std::vector<dynamic_higher_deriv_fct> dynamic_higher_deriv; // Index 0 is g2
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#if defined(_WIN32) || defined(__CYGWIN32__)
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HINSTANCE dynamicHinstance; // DLL instance pointer in Windows
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#else
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void* dynamicHinstance; // and in Linux or Mac
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#endif
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std::vector<double> tt; // Vector of temporary terms
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template<typename T>
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std::pair<T, dynamic_tt_fct>
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getSymbolsFromDLL(const std::string& funcname, const std::string& fName)
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{
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dynamic_tt_fct tt;
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T deriv;
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#if defined(__CYGWIN32__) || defined(_WIN32)
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# pragma GCC diagnostic push
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# pragma GCC diagnostic ignored "-Wcast-function-type"
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deriv = reinterpret_cast<T>(GetProcAddress(dynamicHinstance, funcname.c_str()));
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tt = reinterpret_cast<dynamic_tt_fct>(
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GetProcAddress(dynamicHinstance, (funcname + "_tt").c_str()));
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# pragma GCC diagnostic pop
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#else
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deriv = reinterpret_cast<T>(dlsym(dynamicHinstance, funcname.c_str()));
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tt = reinterpret_cast<dynamic_tt_fct>(dlsym(dynamicHinstance, (funcname + "_tt").c_str()));
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#endif
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if (!deriv || !tt)
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{
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#if defined(__CYGWIN32__) || defined(_WIN32)
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FreeLibrary(dynamicHinstance);
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#else
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dlclose(dynamicHinstance);
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#endif
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throw DynareException(__FILE__, __LINE__,
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"Error when loading symbols from " + 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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}
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return {deriv, tt};
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}
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public:
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// construct and load Dynamic model DLL
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explicit DynamicModelDLL(const std::string& fname, int ntt_arg, int order);
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~DynamicModelDLL() override;
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void eval(const Vector& y, const Vector& x, const Vector& params, const Vector& ySteady,
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Vector& residual, std::vector<TwoDMatrix>& md) override;
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};
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#endif
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