lua_compiler.h

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/*
 * Copyright (c) 2013-2015:  G-CSC, Goethe University Frankfurt
 * Author: Martin Rupp
 * 
 * This file is part of UG4.
 * 
 * UG4 is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License version 3 (as published by the
 * Free Software Foundation) with the following additional attribution
 * requirements (according to LGPL/GPL v3 §7):
 * 
 * (1) The following notice must be displayed in the Appropriate Legal Notices
 * of covered and combined works: "Based on UG4 (www.ug4.org/license)".
 * 
 * (2) The following notice must be displayed at a prominent place in the
 * terminal output of covered works: "Based on UG4 (www.ug4.org/license)".
 * 
 * (3) The following bibliography is recommended for citation and must be
 * preserved in all covered files:
 * "Reiter, S., Vogel, A., Heppner, I., Rupp, M., and Wittum, G. A massively
 *   parallel geometric multigrid solver on hierarchically distributed grids.
 *   Computing and visualization in science 16, 4 (2013), 151-164"
 * "Vogel, A., Reiter, S., Rupp, M., Nägel, A., and Wittum, G. UG4 -- a novel
 *   flexible software system for simulating pde based models on high performance
 *   computers. Computing and visualization in science 16, 4 (2013), 165-179"
 * 
 * This program 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.
 */
 
#ifndef __LUACompiler_H__
#define __LUACompiler_H__
 
#include <stdio.h>
#include <string>
#include "common/util/dynamic_library_util.h"
#include "bindings/lua/lua_function_handle.h"
 
namespace ug{
 
class VMAdd;
 
namespace bridge {
 
 
 
class LUACompiler
{
  
private:
  typedef int (*LUA2C_Function)(double *, const double *) ;
  
  DynLibHandle m_libHandle;
  std::string m_pDyn;
  VMAdd* vm;
 
public:
  std::string m_name;
  LUA2C_Function m_f;
  int m_iIn, m_iOut;
  bool bInitialized;
  bool bVM;
  LUACompiler()
  { 
    m_f= nullptr;
    m_name = "uninitialized"; 
    m_pDyn = ""; 
    m_libHandle = nullptr;
    bInitialized = false;
    bVM = false;
    vm = nullptr;
  }
  
  int num_in() const
  {
    return m_iIn;
  }
  
  int num_out() const
  {
    return m_iOut;
  }
  
  const std::string &name() const
  {
    return m_name;
  }
  
  bool is_valid() const
  {
    return bInitialized;
  }
  
  bool create(const char *functionName, LuaFunctionHandle* pHandle = nullptr);
  bool createVM(const char *functionName, LuaFunctionHandle* pHandle = nullptr);
  bool createC(const char *functionName, LuaFunctionHandle* pHandle = nullptr);
  
  bool call(double *ret, const double *in) const;
  virtual ~LUACompiler();
};
 
 
}
}
#endif  /* __LUACompiler_H__ */