Struct page_table::PageNumber

#[repr(transparent)]
pub struct PageNumber<Meta: VmMeta, S: Space>(_, _, _);

页号。

Implementations

impl<Meta: VmMeta, S: Space> PageNumber<Meta, S>

pub const ZERO: Self = _

页号零。

pub const MIN: Self = Self::ZERO

最小页号。

pub const fn new(n: usize) -> Self

新建一个页号。

pub const fn val(self) -> usize

获取页号值。

impl<Meta: VmMeta> PageNumber<Meta, Physical>

pub const INVALID: Self = _

无效的物理页号，作为 NULL 使用。

显然，物理页号不可能和 usize 一样长，所以可以这样操作。

pub const MAX: Self = _

最大物理页号。

impl<Meta: VmMeta> PageNumber<Meta, Virtual>

pub const MAX: Self = _

最大虚拟页号。

pub const fn base(self) -> VAddr<Meta>

虚页的起始地址。

pub fn index_in(self, level: usize) -> usize

虚页在 level 级页表中的位置。

pub fn floor(self, level: usize) -> Self

包含这个虚页的 level 级页表起始地址。

pub fn ceil(self, level: usize) -> usize

不包含这个虚页的 level 级页表起始地址。

pub fn vaddr_range(self, level: usize) -> Range<VAddr<Meta>>

包含这个虚页的 level 级页表容纳的虚页范围。

pub fn align_level(self) -> usize

虚页的对齐级别，使虚页在页表中序号为 0 的最高等级页表的级别。

Trait Implementations

impl<Meta: VmMeta, S: Space> Add<usize> for PageNumber<Meta, S>

type Output = PageNumber<Meta, S>

The resulting type after applying the + operator.

fn add(self, rhs: usize) -> Self

Performs the + operation.

impl<Meta: VmMeta, S: Space> AddAssign<usize> for PageNumber<Meta, S>

fn add_assign(&mut self, rhs: usize)

Performs the += operation.

impl<Meta: Clone + VmMeta, S: Clone + Space> Clone for PageNumber<Meta, S>

fn clone(&self) -> PageNumber<Meta, S>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<Meta: Hash + VmMeta, S: Hash + Space> Hash for PageNumber<Meta, S>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl<Meta: Ord + VmMeta, S: Ord + Space> Ord for PageNumber<Meta, S>

fn cmp(&self, other: &PageNumber<Meta, S>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self where
    Self: PartialOrd<Self>, 

Restrict a value to a certain interval.

impl<Meta: PartialEq + VmMeta, S: PartialEq + Space> PartialEq<PageNumber<Meta, S>> for PageNumber<Meta, S>

fn eq(&self, other: &PageNumber<Meta, S>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<Meta: PartialOrd + VmMeta, S: PartialOrd + Space> PartialOrd<PageNumber<Meta, S>> for PageNumber<Meta, S>

fn partial_cmp(&self, other: &PageNumber<Meta, S>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<Meta: Copy + VmMeta, S: Copy + Space> Copy for PageNumber<Meta, S>

impl<Meta: Eq + VmMeta, S: Eq + Space> Eq for PageNumber<Meta, S>

impl<Meta: VmMeta, S: Space> StructuralEq for PageNumber<Meta, S>

impl<Meta: VmMeta, S: Space> StructuralPartialEq for PageNumber<Meta, S>