#include "vxBoot/loader.h"
#include "vxBoot/terminal.h"
#include "vxBoot/fs/smemfs.h"

#include <gint/bfile.h>

#include <stdlib.h>


/* internal kernel image list */
extern struct ldimg *kernel_img_list;

/* hypervisor_get_image_list(): Dump all ELF file stored into the SMEM
 *
 * @note:
 *   on real calculator, all file transfered using USB are concidered to be
 * 'archived', but on emulator they are concidered like file. */
static int loader_list_img(struct ldimg **image, struct smemfs_inode *inode)
{
	if (inode == NULL)
		return (0);

	int counter = 0;
	if (inode->type != BFile_Type_Archived
			&& inode->type != BFile_Type_File) {
		counter += loader_list_img(image, inode->child);
		goto anchor;
	}
	if (loader_header_get(inode, NULL) == ld_header_valid) {
		(*image) = calloc(1, sizeof(struct ldimg));
		if ((*image) == NULL) {
			terminal_write("hypervisor: out of memory :(\n");
			goto anchor;
		}
		(*image)->inode = inode;
		image = &((*image)->next);
	}
anchor:
	return (loader_list_img(image, inode->sibling) + counter);
}

/* loader_scan() : scan the storage memroy */
int loader_scan(void)
{
	extern struct smemfs_superblock smemfs_superblock;

	// bad way to check if the smemfs is mounted :(
	if (smemfs_superblock.fake_root_inode != SMEMFS_FAKE_ROOT_INODE)
		return (-1);
	return (loader_list_img(&kernel_img_list, smemfs_superblock.root_inode));
}