Something
public text v1 · immutablebool check_user ( const uint8_t *uaddr)
{
if(uaddr == 0)
return false;
if(!is_user_vaddr(uaddr))
return false;
ASSERT(thread_current()->pagedir != NULL);
if(pagedir_get_page(thread_current()->pagedir, uaddr) == NULL)
{
return false;
}
return true;
}