63e88f80
 Hu Chunming
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// Copyright (C) 2005-2006 Douglas Gregor <doug.gregor -at- gmail.com>.
// Use, modification and distribution is subject to the Boost Software
// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
/** @file exception.hpp
*
* This header provides exception classes that report MPI errors to
* the user and macros that translate MPI error codes into Boost.MPI
* exceptions.
*/
#ifndef BOOST_MPI_EXCEPTION_HPP
#define BOOST_MPI_EXCEPTION_HPP
#include <boost/mpi/config.hpp>
#include <exception>
#include <cassert>
#include <string>
#include <boost/config.hpp>
#include <boost/throw_exception.hpp>
namespace boost { namespace mpi {
/** @brief Catch-all exception class for MPI errors.
*
* Instances of this class will be thrown when an MPI error
* occurs. MPI failures that trigger these exceptions may or may not
* be recoverable, depending on the underlying MPI
* implementation. Consult the documentation for your MPI
* implementation to determine the effect of MPI errors.
*/
class BOOST_MPI_DECL exception : public std::exception
{
public:
/**
* Build a new @c exception exception.
*
* @param routine The MPI routine in which the error
* occurred. This should be a pointer to a string constant: it
* will not be copied.
*
* @param result_code The result code returned from the MPI
* routine that aborted with an error.
*/
exception(const char* routine, int result_code);
virtual ~exception() throw();
/**
* A description of the error that occurred.
*/
virtual const char * what () const throw ()
{
return this->message.c_str();
}
/** Retrieve the name of the MPI routine that reported the error. */
const char* routine() const { return routine_; }
/**
* @brief Retrieve the result code returned from the MPI routine
* that reported the error.
*/
int result_code() const { return result_code_; }
/**
* @brief Returns the MPI error class associated with the error that
* triggered this exception.
*/
int error_class() const
{
int result;
MPI_Error_class(result_code_, &result);
return result;
}
protected:
/// The MPI routine that triggered the error
const char* routine_;
/// The failed result code reported by the MPI implementation.
int result_code_;
/// The formatted error message
std::string message;
};
/**
* Call the MPI routine MPIFunc with arguments Args (surrounded by
* parentheses). If the result is not MPI_SUCCESS, use
* boost::throw_exception to throw an exception or abort, depending on
* BOOST_NO_EXCEPTIONS.
*/
#define BOOST_MPI_CHECK_RESULT( MPIFunc, Args ) \
{ \
int _check_result = MPIFunc Args; \
assert(_check_result == MPI_SUCCESS); \
if (_check_result != MPI_SUCCESS) \
boost::throw_exception(boost::mpi::exception(#MPIFunc, \
_check_result)); \
}
} } // end namespace boost::mpi
#endif // BOOST_MPI_EXCEPTION_HPP
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