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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2026 Richard QIn
*/
/* Standard I/O Library for Lume OS */
#ifndef _STDIO_H
#define _STDIO_H
#include <stdarg.h>
#include "ulib/types.h"
#ifdef __cplusplus
extern "C" {
#endif
/*Type Definition (Adjusted According to Architecture)*/
#ifndef NULL
#define NULL ((void *)0)
#endif
/*Macro definition*/
#define EOF (-1)
#define SEEK_SET 0
#define SEEK_CUR 1
#define SEEK_END 2
#define BUFSIZ 1024
/* FILE structure */
typedef struct
{
int fd;
int flags;
int error;
int eof;
char buffer[BUFSIZ];
int buf_write_pos;
int buf_read_pos;
int buf_read_cnt;
int buf_mode;
} FILE;
/* standard stream object */
extern FILE *stdin;
extern FILE *stdout;
extern FILE *stderr;
/* Function Declaration */
/* File Operations */
FILE *fopen(const char *filename, const char *mode);
int fclose(FILE *stream);
int fflush(FILE *stream); // Not implement
/* Formatted input and output */
int printf(const char *format, ...);
int scanf(const char *format, ...);
int sprintf(char *str, const char *format, ...);
int snprintf(char *str, uint64 size, const char *format, ...);
int vsnprintf(char *str, uint64 size, const char *format, va_list ap);
int sscanf(const char *str, const char *format, ...);
int fprintf(FILE *stream, const char *format, ...);
int fscanf(FILE *stream, const char *format, ...);
/* Character/String Read and Write */
int fputc(int c, FILE *stream);
int fputs(const char *s, FILE *stream);
int fgetc(FILE *stream);
char *fgets(char *str, int n, FILE *stream);
int ungetc(int c, FILE *stream);
/* Common Macros/Wrapper Functions */
#define getchar() fgetc(stdin)
#define putchar(c) fputc((c), stdout)
/* Binary read and write */
uint64 fread(void *ptr, uint64 size, uint64 nmemb, FILE *stream);
uint64 fwrite(const void *ptr, uint64 size, uint64 nmemb, FILE *stream);
/* File location */
int fseek(FILE *stream, long offset, int whence);
long ftell(FILE *stream);
void rewind(FILE *stream);
/* Status Inquiry */
int feof(FILE *stream);
int ferror(FILE *stream);
void clearerr(FILE *stream);
#ifdef __cplusplus
}
#endif
#endif /* _STDIO_H */
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