47 lines
880 B
C
47 lines
880 B
C
#ifndef _PROCESS_H
|
|
#define _PROCESS_H
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <filesystems/fat32.h>
|
|
#include <stdio.h>
|
|
|
|
#define FILE_DESC_SIZE 8
|
|
|
|
|
|
#define IN_USE 1
|
|
|
|
|
|
struct fops {
|
|
int8_t (*open)(const char* filename);
|
|
int8_t (*close)(int8_t fd);
|
|
int8_t (*read)(int8_t fd, void* buf, size_t nbytes);
|
|
int8_t (*write)(int8_t fd, const void* buf, size_t nbytes);
|
|
};
|
|
|
|
struct file_desc {
|
|
struct fops* file_ops;
|
|
uint8_t fs_type;
|
|
union {
|
|
struct fat32_directory_entry f32_dentry;
|
|
};
|
|
uint32_t file_pos;
|
|
uint32_t flags;
|
|
};
|
|
|
|
/* Process Control Block struct */
|
|
struct pcb {
|
|
struct file_desc file_desc_array[FILE_DESC_SIZE];
|
|
int32_t is_vidmapped;
|
|
uint8_t args[128];
|
|
uint32_t execute_return;
|
|
int32_t pid;
|
|
int32_t parent_pid;
|
|
uint32_t parent_esp;
|
|
uint32_t parent_ebp;
|
|
};
|
|
|
|
|
|
struct pcb* get_pcb_ptr();
|
|
|
|
#endif |