Untitled_Kernel/include/io.h

/*  io.h
*   In/Out
*
*   Common library for handling user i/o. Aims to be mechanic agnostic, and instead 
*   focus on implementing generic functions to format and manipulate data.
*/
#ifndef IO_H
#define IO_H
#include <stdint.h>

typedef struct char_writer_s char_writer_t;
struct char_writer_s {
    int (*putChar)(void* ctx, char out);
    void* ctx;
};

int putc(char_writer_t*, char);
int print(char_writer_t*, const char*);
int println(char_writer_t*, const char*);
int printhex(char_writer_t*, uint32_t);
int prindec(char_writer_t*, uint32_t out);
int printf(char_writer_t*, const char* fmt, ...);

#endif
Changed I/O to be more generic. instead of stuffing all of the i/o stuff into the "kio" library, i've decided to rework i/o to be a generic handler that takes in a function pointer for putc, and does the rest of the logic onto that pointer. That way, you can pass any function that can take in characters and move them to buffers. I'll do a writeup on this at some point to document it. 2025-06-29 05:13:43 +00:00			`/* io.h`
			`* In/Out`
			`*`
			`* Common library for handling user i/o. Aims to be mechanic agnostic, and instead`
			`* focus on implementing generic functions to format and manipulate data.`
			`*/`
			`#ifndef IO_H`
			`#define IO_H`
			`#include <stdint.h>`

Reworked I/O methodology Instead of passing function pointers, we're passing structs with context now. The idea is the same, I/O functions require some struct with a function pointer and some generic memory that only the output device cares about. I/O just calls it. VGA has been reworked to accomodate this change, as well as default outputs being created for low-overhead use (such as interrupt handlers). 2025-07-03 05:36:47 +00:00			`typedef struct char_writer_s char_writer_t;`
			`struct char_writer_s {`
			`int (putChar)(void ctx, char out);`
			`void* ctx;`
			`};`

			`int putc(char_writer_t*, char);`
			`int print(char_writer_t, const char);`
			`int println(char_writer_t, const char);`
			`int printhex(char_writer_t*, uint32_t);`
			`int prindec(char_writer_t*, uint32_t out);`
			`int printf(char_writer_t, const char fmt, ...);`
Changed I/O to be more generic. instead of stuffing all of the i/o stuff into the "kio" library, i've decided to rework i/o to be a generic handler that takes in a function pointer for putc, and does the rest of the logic onto that pointer. That way, you can pass any function that can take in characters and move them to buffers. I'll do a writeup on this at some point to document it. 2025-06-29 05:13:43 +00:00
			`#endif`