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