Struct PageSegment

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pub struct PageSegment(/* private fields */);
Expand description

An import/export segment that stores an inner VM page and its address.

The page is stored in the first 4096 bytes, the address is encoded using little-endian format in the last 8 bytes of the segment.

[ page(4096) | address(8) ]

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impl PageSegment

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pub fn new(segment: Segment) -> Self

Create page segment from existing import/export segment.

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pub fn zero(address: u64) -> Self

Create zero-filled page with the supplied address.

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pub fn null() -> Self

Create zero-filled page with null address.

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pub fn page(&self) -> &[u8]

Get immutable reference to the page contents (excluding the address).

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pub fn page_mut(&mut self) -> &mut [u8]

Get mutable reference to the page contents (excluding the address).

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pub fn address(&self) -> u64

Get the address.

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pub fn into_inner(self) -> Segment

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impl AsMut<[u8]> for PageSegment

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fn as_mut(&mut self) -> &mut [u8]

Converts this type into a mutable reference of the (usually inferred) input type.
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impl AsRef<[u8]> for PageSegment

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fn as_ref(&self) -> &[u8]

Converts this type into a shared reference of the (usually inferred) input type.
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impl Clone for PageSegment

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fn clone(&self) -> PageSegment

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl From<FixedVec<u8, SegmentLen>> for PageSegment

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fn from(other: Segment) -> Self

Converts to this type from the input type.
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impl From<PageSegment> for Segment

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fn from(other: PageSegment) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

Blanket Implementations§

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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, U> AsByteSlice<T> for U
where T: ToByteSlice, U: AsRef<[T]> + ?Sized,

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fn as_byte_slice(&self) -> &[u8]

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impl<T, U> AsMutByteSlice<T> for U
where T: ToMutByteSlice, U: AsMut<[T]> + ?Sized,

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fn as_mut_byte_slice(&mut self) -> &mut [u8]

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impl<U> AsMutSliceOf for U
where U: AsMut<[u8]> + ?Sized,

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fn as_mut_slice_of<T>(&mut self) -> Result<&mut [T], Error>
where T: FromByteSlice,

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impl<U> AsSliceOf for U
where U: AsRef<[u8]> + ?Sized,

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fn as_slice_of<T>(&self) -> Result<&[T], Error>
where T: FromByteSlice,

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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<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> 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.