log.h

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#ifndef BASE_LOG_H
#define BASE_LOG_H
 
#include <cstdarg>
#include <cstdint>
 
#ifdef __GNUC__
#define GNUC_ATTRIBUTE(x) __attribute__(x)
#else
#define GNUC_ATTRIBUTE(x)
#endif
 
enum LEVEL : char
{
    LEVEL_ERROR,
    LEVEL_WARN,
    LEVEL_INFO,
    LEVEL_DEBUG,
    LEVEL_TRACE,
};
 
struct LOG_COLOR
{
    uint8_t r;
    uint8_t g;
    uint8_t b;
};
 
#define log_error(sys, ...) log_log(LEVEL_ERROR, sys, __VA_ARGS__)
#define log_warn(sys, ...) log_log(LEVEL_WARN, sys, __VA_ARGS__)
#define log_info(sys, ...) log_log(LEVEL_INFO, sys, __VA_ARGS__)
#define log_debug(sys, ...) log_log(LEVEL_DEBUG, sys, __VA_ARGS__)
#define log_trace(sys, ...) log_log(LEVEL_TRACE, sys, __VA_ARGS__)
 
#define log_error_color(color, sys, ...) log_log_color(LEVEL_ERROR, color, sys, __VA_ARGS__)
#define log_warn_color(color, sys, ...) log_log_color(LEVEL_WARN, color, sys, __VA_ARGS__)
#define log_info_color(color, sys, ...) log_log_color(LEVEL_INFO, color, sys, __VA_ARGS__)
#define log_debug_color(color, sys, ...) log_log_color(LEVEL_DEBUG, color, sys, __VA_ARGS__)
#define log_trace_color(color, sys, ...) log_log_color(LEVEL_TRACE, color, sys, __VA_ARGS__)
 
void log_log(LEVEL level, const char *sys, const char *fmt, ...)
    GNUC_ATTRIBUTE((format(printf, 3, 4)));
 
void log_log_color(LEVEL level, LOG_COLOR color, const char *sys, const char *fmt, ...)
    GNUC_ATTRIBUTE((format(printf, 4, 5)));
 
void log_log_v(LEVEL level, const char *sys, const char *fmt, va_list args)
    GNUC_ATTRIBUTE((format(printf, 3, 0)));
 
void log_log_color_v(LEVEL level, LOG_COLOR color, const char *sys, const char *fmt, va_list args)
    GNUC_ATTRIBUTE((format(printf, 4, 0)));
#endif // BASE_LOG_H