include/common/exception.h

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//
// C++ Interface: exception
//
// Description: 
//
//
// Author: Tiziano Müller <tiziano.mueller@neuronics.ch>, (C) 2006
//
// Copyright: See COPYING file that comes with this distribution
//
//

#ifndef _EXCEPTION_H_
#define _EXCEPTION_H_


#include <string>
#include "dllexport.h"


#ifdef HAVE_LIBEBT

#include <libebt/libebt.hh>
#include <libebt/libebt_util.hh>

struct ExceptionTag { };
typedef libebt::BacktraceContext<ExceptionTag, std::string> Context;



class DLLDIR Exception : public libebt::Backtraceable<ExceptionTag>,
                                                 public std::exception {
    protected:
        const std::string _message;
                const int _error_number;

    public:
        Exception(const std::string & message, const int error_number) throw () :
            libebt::Backtraceable<ExceptionTag>(),
            std::exception(),
            _message(message), _error_number(error_number) {
        }

        virtual ~Exception() throw () {
        }

        std::string message() const throw() {
            return _message;
        }
        const char* what() const throw() {
            return _message.c_str();
        }

        const int error_number() const throw() {
            return _error_number;
        }
};


#else // HAVE_LIBEBT


// The compiler should optimize that away
struct DLLDIR Context {
    Context(const char*) {}
};

class DLLDIR Exception : public std::exception {
    protected:
        const std::string _message;
        const int _error_number;

    public:
        Exception(const std::string & message, const int error_number) throw () :
            std::exception(),
            _message(message), _error_number(error_number) {
        }

        virtual ~Exception() throw () {
        }

        std::string message() const throw() {
            return _message;
        }
        const char* what() const throw() {
            return _message.c_str();
        }

        int error_number() const throw() {
            return _error_number;
        }
};



#endif

#endif