91 lines
2.5 KiB
C++
91 lines
2.5 KiB
C++
/*
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* Copyright (C) 2010-2017 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 <http://www.gnu.org/licenses/>.
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*/
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#include "dynamic_dll.hh"
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#include <sstream>
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using namespace std;
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DynamicModelDLL::DynamicModelDLL(const std::string &basename) throw (TSException)
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{
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std::string fName;
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#if !defined(__CYGWIN32__) && !defined(_WIN32)
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if (basename[0] != '/')
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fName = "./";
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#endif
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fName += basename + "_dynamic" + MEXEXT;
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try
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{
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#if defined(__CYGWIN32__) || defined(_WIN32)
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dynamicHinstance = LoadLibrary(fName.c_str());
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if (dynamicHinstance == NULL)
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throw 1;
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Dynamic = (DynamicFn) GetProcAddress(dynamicHinstance, "Dynamic");
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if (Dynamic == NULL)
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{
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FreeLibrary(dynamicHinstance); // Free the library
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throw 2;
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}
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#else // Linux or Mac
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dynamicHinstance = dlopen(fName.c_str(), RTLD_NOW);
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if ((dynamicHinstance == NULL) || dlerror())
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{
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cerr << dlerror() << endl;
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throw 1;
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}
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Dynamic = (DynamicFn) dlsym(dynamicHinstance, "Dynamic");
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if ((Dynamic == NULL) || dlerror())
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{
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dlclose(dynamicHinstance); // Free the library
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cerr << dlerror() << endl;
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throw 2;
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}
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#endif
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}
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catch (int i)
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{
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std::ostringstream msg;
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msg << "Error when loading " << fName << " (";
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if (i == 1)
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msg << "can't dynamically load the file";
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if (i == 2)
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msg << "can't locate the 'Dynamic' symbol";
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msg << ")";
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throw TSException(__FILE__, __LINE__, msg.str());
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}
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catch (...)
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{
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throw TSException(__FILE__, __LINE__, std::string("Can't find Dynamic function in ") + fName);
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}
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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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bool result = FreeLibrary(dynamicHinstance);
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if (result == 0)
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throw TSException(__FILE__, __LINE__, std::string("Can't free the *_dynamic DLL"));
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#else
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dlclose(dynamicHinstance);
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#endif
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}
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