log.h

Go to the documentation of this file.

/*****************************************************************************************
 * SGCT                                                                                  *
 * Simple Graphics Cluster Toolkit                                                       *
 *                                                                                       *
 * Copyright (c) 2012-2026                                                               *
 * For conditions of distribution and use, see copyright notice in LICENSE.md            *
 ****************************************************************************************/
 
#ifndef __SGCT__LOGGER__H__
#define __SGCT__LOGGER__H__
 
#include <sgct/sgctexports.h>
 
#include <functional>
#include <mutex>
#include <string>
#include <string_view>
#include <vector>
 
namespace sgct {
 
class SGCT_EXPORT Log {
public:
    enum class Level { Error = 3, Warning = 2, Info = 1, Debug = 0 };
 
    static Log& instance();
    static void destroy();
 
    static void Debug(std::string_view message);
    static void Warning(std::string_view message);
    static void Info(std::string_view message);
    static void Error(std::string_view message);

    void setNotifyLevel(Level nl);

    void setShowTime(bool state);

    void setShowLogLevel(bool state);

    void setLogToConsole(bool state);

    void setLogCallback(std::function<void(Level, std::string_view)> fn);
 
private:
    Log();
    Log(const Log&) = delete;
    Log(Log&&) = delete;
    Log& operator=(const Log&) = delete;
    Log& operator=(Log&&) = delete;
 
    void printv(Level level, std::string message);
 
    static Log* _instance;
 
    std::vector<char> _parseBuffer;
 
    Level _level = Level::Info;
    bool _showTime = false;
    bool _showLevel = true;
    bool _logToConsole = true;
 
    std::mutex _mutex;
 
    std::function<void(Level, std::string_view)> _messageCallback;
};
 
} // namespace sgct
 
#endif // __SGCT__LOGGER__H__