log.h

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#pragma once
 
#include <boot/boot_info.h>
 
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <sys/io.h>
#include <sys/math.h>
#include <sys/proc.h>
 
#define LOG_MAX_BUFFER 0x1000
 
typedef enum
{
    LOG_OUTPUT_SERIAL = 1 << 0,
    LOG_OUTPUT_SCREEN = 1 << 1,
    LOG_OUTPUT_FILE = 1 << 2
} log_output_t;
 
typedef enum
{
    LOG_LEVEL_DEBUG,
    LOG_LEVEL_USER,
    LOG_LEVEL_INFO,
    LOG_LEVEL_WARN,
    LOG_LEVEL_ERR,
    LOG_LEVEL_PANIC,
} log_level_t;
 
void log_init(const boot_gop_t* gop);
 
void log_screen_enable(void);
 
void log_screen_disable(void);
 
void log_write(const char* string, uint64_t length);
 
uint64_t log_print(log_level_t level, const char* prefix, const char* format, ...);
 
uint64_t log_vprint(log_level_t level, const char* prefix, const char* format, va_list args);
 
#ifndef NDEBUG
#define LOG_DEBUG(format, ...) log_print(LOG_LEVEL_DEBUG, FILE_BASENAME, format __VA_OPT__(, ) __VA_ARGS__)
#else
#define LOG_DEBUG(format, ...) ((void)0)
#endif
 
#define LOG_USER(format, ...) log_print(LOG_LEVEL_USER, FILE_BASENAME, format __VA_OPT__(, ) __VA_ARGS__)
#define LOG_INFO(format, ...) log_print(LOG_LEVEL_INFO, FILE_BASENAME, format __VA_OPT__(, ) __VA_ARGS__)
#define LOG_WARN(format, ...) log_print(LOG_LEVEL_WARN, FILE_BASENAME, format __VA_OPT__(, ) __VA_ARGS__)
#define LOG_ERR(format, ...) log_print(LOG_LEVEL_ERR, FILE_BASENAME, format __VA_OPT__(, ) __VA_ARGS__)
#define LOG_PANIC(format, ...) log_print(LOG_LEVEL_PANIC, FILE_BASENAME, format __VA_OPT__(, ) __VA_ARGS__)