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PageTable

Struct PageTable 

#[repr(C, align(4096))]
pub struct PageTable { entries: [PageTableEntry; 512], }
Expand description

Represents a page table.

Always page-sized.

This struct implements the Index and IndexMut traits, so the entries can be accessed through index operations. For example, page_table[15] returns the 16th page table entry.

Note that while this type implements Clone, the users must be careful not to introduce mutable aliasing by using the cloned page tables.

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§entries: [PageTableEntry; 512]

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impl PageTable

pub const fn new() -> PageTable

Creates an empty page table.

pub fn zero(&mut self)

Clears all entries.

pub fn iter(&self) -> impl Iterator<Item = &PageTableEntry>

Returns an iterator over the entries of the page table.

pub fn iter_mut(&mut self) -> impl Iterator<Item = &mut PageTableEntry>

Returns an iterator that allows modifying the entries of the page table.

pub fn is_empty(&self) -> bool

Checks if the page table is empty (all entries are zero).

Trait Implementations§

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impl Clone for PageTable

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fn clone(&self) -> PageTable

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for PageTable

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
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impl Default for PageTable

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fn default() -> PageTable

Returns the “default value” for a type. Read more
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impl Index<PageTableIndex> for PageTable

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type Output = PageTableEntry

The returned type after indexing.
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fn index( &self, index: PageTableIndex, ) -> &<PageTable as Index<PageTableIndex>>::Output

Performs the indexing (container[index]) operation. Read more
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impl Index<usize> for PageTable

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type Output = PageTableEntry

The returned type after indexing.
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fn index(&self, index: usize) -> &<PageTable as Index<usize>>::Output

Performs the indexing (container[index]) operation. Read more
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impl IndexMut<PageTableIndex> for PageTable

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fn index_mut( &mut self, index: PageTableIndex, ) -> &mut <PageTable as Index<PageTableIndex>>::Output

Performs the mutable indexing (container[index]) operation. Read more
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impl IndexMut<usize> for PageTable

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fn index_mut( &mut self, index: usize, ) -> &mut <PageTable as Index<usize>>::Output

Performs the mutable indexing (container[index]) operation. Read more

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.