#pragma once

#include "list.h"

#include <stdint.h>

extern struct task *current_task;

enum status { ZOMBIE, THREAD, RUN };
enum owner { OWNER_KERNEL, OWNER_USER };

struct task {
	uint32_t *esp;
	uint32_t *esp0;
	uint32_t *cr3;  // physical
	uint32_t *heap; // virtual
	uint32_t *eip;
	uint16_t pid;
	uint8_t status;
	uint8_t owner_id;
	struct task *daddy;
	struct task *child;
	struct list **signals;
	struct task *next;
	struct task *prev;
};

void scheduler(void);
void switch_to_task(struct task *next_task);
void exec_fn(void (*fn)(void));
int create_kernel_task(void);