/*
 *    vmg - a versatile multigrid solver
 *    Copyright (C) 2012 Institute for Numerical Simulation, University of Bonn
 *
 *  vmg 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.
 *
 *  vmg 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */

/**
 * @file   error_handler.hpp
 * @author Julian Iseringhausen <isering@ins.uni-bonn.de>
 * @date   Mon Nov 21 13:27:22 2011
 *
 * @brief  Convert MPI errors to C++ exceptions. Used to be
 *         able to call a debugger when MPI crashes
 *         internally.
 *
 */

#ifndef ERROR_HANDLER_HPP_
#define ERROR_HANDLER_HPP_

#ifdef DEBUG

#ifdef HAVE_MPI

#include <stdexcept>

namespace VMG
{

namespace MPI
{

class Exception : public std::exception
{
public:
  Exception(const std::string& what) :
    std::exception(),
    m_what(what)
  {}

  virtual ~Exception() throw()
  {}

  const char* what() const throw()
  {
    return m_what.c_str();
  }

protected:
  std::string m_what;

};

  void ConvertToException(MPI_Comm* comm, int* err, ...);

}

}

#endif /* HAVE_MPI */

#endif /* DEBUG */

#endif /* ERROR_HANDLER_HPP_ */