tmwserv/src/utils/logger.h

/*
 *  The Mana World Server
 *  Copyright 2004 The Mana World Development Team
 *
 *  This file is part of The Mana World.
 *
 *  The Mana World  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 any later version.
 *
 *  The Mana  World 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 The Mana  World; if not, write to the  Free Software Foundation, Inc.,
 *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#ifndef _TMWSERV_LOGGER_H_
#define _TMWSERV_LOGGER_H_

#include <iosfwd>
#include <sstream>

namespace utils
{

class Logger
{
    public:
        enum Level
        {
            FATAL = 0,
            ERROR,
            WARN,
            INFO,
            DEBUG
        };

        static void setLogFile(const std::string &logFile);

        static void setTimestamp(bool flag = true)
        { mHasTimestamp = flag; }

        static void setTeeMode(bool flag = true)
        { mTeeMode = flag; }

        static void setVerbosity(Level verbosity)
        { mVerbosity = verbosity; }

        static void output(const std::string &msg, Level atVerbosity);

        static Level mVerbosity;   
    private:
        static bool mHasTimestamp; 
        static bool mTeeMode;      
        static void output(std::ostream &os, const std::string &msg,
                           const char *prefix);
};


} // namespace utils

// HELPER MACROS

#define LOG(level, msg)                                                \
    do if (::utils::Logger::mVerbosity >= ::utils::Logger::level) {    \
        std::ostringstream os;                                         \
        os << msg;                                                     \
        ::utils::Logger::output(os.str(), ::utils::Logger::level);     \
    } while (0)

#define LOG_DEBUG(msg)  LOG(DEBUG, msg)
#define LOG_INFO(msg)   LOG(INFO, msg)
#define LOG_WARN(msg)   LOG(WARN, msg)
#define LOG_ERROR(msg)  LOG(ERROR, msg)
#define LOG_FATAL(msg)  LOG(FATAL, msg)

#endif // _TMWSERV_LOGGER_H_

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