// proc.h
// Author: Josh Holtrop
// Date; 08/18/05
// Modified: 08/18/05

#ifndef __HOS_PROC_H__
#define __HOS_PROC_H__ __HOS_PROC_H__

#include "hos_defines.h"
#include "kernel.h"

typedef struct
{
	u32_t	*page_dir;	/* Page directory with physical PT addys */
	u32_t	*v_page_dir;	/* Virtual page table addresses for init */
	u32_t	p_page_dir;	/* Physical address of page directory */
	u32_t	size;		/* Process size, bytes from 0 through bss */
	u32_t	esp;		/* Process stack pointer */
	int_stack_frame_t	stack_frame;
} process_t;

int	proc_init(int_stack_t *stack_frame);
void	proc_sched();
u32_t	create_task(void *base, u32_t image_size, u32_t bss_size, void *entry);
process_t *create_process(void *base, u32_t image_size, u32_t bss_size, void *entry);
void	create_address_space(process_t *p);
void	create_process_stack(process_t *p);
void	copy_into_address_space(u32_t dest_addr,
				void *src_addr,
				u32_t pages,
				process_t *p);
void	zero_address_space(u32_t dest_addr, u32_t pages, process_t *p);
u32_t	fork(process_t *p);


#endif