LogSystem.hpp

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/*============================================================================*/
#ifndef SHISHGL_LOG_SYSTEM_HPP
#define SHISHGL_LOG_SYSTEM_HPP
/*============================================================================*/
#include <cstdio>
#include <cstdarg>
 
#include "Time.hpp"
/*============================================================================*/
namespace Sh {
 
    class LogSystem {
    public:
 
        typedef enum {
            LOG_OK = 0,
            LOG_OPEN_ERR,
            LOG_ALREADY_OPENED,
            LOG_CLOSE_ERR,
            LOG_FILE_BROKEN,
            LOG_PRINT_ERR
        } LogStatus;
 
        /*--------------------------------------------------------------------*/
 
        static LogStatus printLog(const char* format, ...)
        __attribute__((format(printf, 1, 2)));
 
        static LogStatus printWarning(const char* format, ...)
        __attribute__((format(printf, 1, 2)));
 
        static LogStatus printError(const char* format, ...)
        __attribute__((format(printf, 1, 2)));
 
        static void flush();
 
        /*--------------------------------------------------------------------*/
 
        virtual ~LogSystem() = default;
 
    private:
 
        LogSystem() = default;
 
        /*--------------------------------------------------------------------*/
 
        static LogStatus openLog();
 
        static LogStatus closeLog();
 
        static LogStatus print(const TimeDelta& elapsed,
                               const char* format, va_list args);
 
        /*--------------------------------------------------------------------*/
        static FILE* LOG_FILE;
 
        static constexpr size_t BUFFER_SIZE = 4096;
 
        struct Message {
 
            char buffer[BUFFER_SIZE];
            size_t cnt;
 
            TimeDelta begin;
            TimeDelta end;
 
        };
 
        static Message& LastMessage();
        /*--------------------------------------------------------------------*/
 
        static Timer& RunTimer();
 
        friend class CoreApplication;
    };
 
}
/*============================================================================*/
#endif //SHISHGL_LOG_SYSTEM_HPP
/*============================================================================*/