logging.h

/********************************************************************
 * Copyright (C) 2015 Liangliang Nan <liangliang.nan@gmail.com>
 * https://3d.bk.tudelft.nl/liangliang/
 *
 * This file is part of Easy3D. If it is useful in your research/work,
 * I would be grateful if you show your appreciation by citing it:
 * ------------------------------------------------------------------
 *      Liangliang Nan.
 *      Easy3D: a lightweight, easy-to-use, and efficient C++ library
 *      for processing and rendering 3D data.
 *      Journal of Open Source Software, 6(64), 3255, 2021.
 * ------------------------------------------------------------------
 *
 * Easy3D is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License Version 3
 * as published by the Free Software Foundation.
 *
 * Easy3D 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, see <http://www.gnu.org/licenses/>.
 ********************************************************************/
 
#ifndef EASY3D_UTIL_LOGGING_H
#define EASY3D_UTIL_LOGGING_H
 
 
#include <3rd_party/easyloggingpp/easylogging++.h>
 
 
#define LOG_IF_EVERY_N(n, condition, LEVEL)  if (condition) \
    CLOG_EVERY_N(n, LEVEL, ELPP_CURR_FILE_LOGGER_ID)
 
#define LOG_IF_FIRST_N(n, condition, LEVEL)  if (condition) \
    CLOG_N_TIMES(n, LEVEL, ELPP_CURR_FILE_LOGGER_ID)
 
#define COUNTER     ELPP_COUNTER->hitCounts()
 
 
namespace easy3d {
 
    namespace logging {
 
        void initialize(
                bool info_to_stdout = false,
                bool warning_to_stdcout = true,
                bool error_to_stdcout = true,
                bool verbose_to_stdcout = false,
                const std::string &log_file = "default",
                int verbosity_threshold = 9
        );
 
        bool is_initialized();
 
        std::string log_file();
 
        class Logger {
        public:
            Logger();
            virtual void send(el::Level level, const std::string& msg) = 0;
        };
 
    }
 
}
 
 
 
#endif  // EASY3D_UTIL_LOGGING_H