devel/libmdw/trunk/libmdw/src/Exception.cpp

/***************************************************************************
 *   Copyright (C) 2010 by Jean-Baptiste Wons   *
 *   wonsjb@gmail.com   *
 *                                                                         *
 *   This program 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 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   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 General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
#include "Exception.h"
#include <execinfo.h>
#include <stdlib.h>

#include "Stream.h"
#include "Logger.h"

using namespace std;

namespace mdw
{

Exception::Exception() throw ()
{
    init();
}

void Exception::init() throw ()
{
    void *trace[32];
    char **messages;
    int i, trace_size = 0;

    trace_size = backtrace (trace, 32);
    messages = backtrace_symbols (trace, trace_size);

    // ignore init call
    for (i = 1; i < trace_size; ++i)
    {
        _stackTrace.push_back (messages[i]);
    }

    free (messages);
}

Exception::~Exception() throw ()
{
}

Exception::Exception (const Exception& other) throw ()
{
}

Exception::Exception (const std::string &error) throw () : _errorMessage (error)
{
    init();
}

void Exception::log()
{
    log(Logger::getInstance().getStream());
}

void Exception::log (Stream &s)
{
    s << _errorMessage << mdw::endl;

    for (vector<string>::iterator aIter = _stackTrace.begin();
            aIter != _stackTrace.end();
            ++aIter)
    {
        s << *aIter << mdw::endl;
    }
}

const char* Exception::what() const throw ()
{
    return _errorMessage.c_str();
}
}

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