FrameContents

ostd::specs::mm::virt_mem_newer

Struct FrameContents

pub struct FrameContents {
    pub contents: Seq<MemContents<u8>>,
    pub size: Ghost<usize>,
    pub range: Ghost<Range<Paddr>>,
}

Expand description

Byte contents of one physical frame range tracked in a MemView.

This is the physical-memory side of the model: each frame base Paddr maps to a FrameContents value whose metadata (size, range) constrains how contents can be interpreted.

Fields§

§contents: Seq<MemContents<u8>>

Per-byte initialization/value state for this frame.

§size: Ghost<usize>

Frame size in bytes.

§range: Ghost<Range<Paddr>>

Physical range covered by this frame, modeled as [start, end).

Trait Implementations§

impl Inv for FrameContents

open spec fn inv(self) -> bool

{
    &&& self.contents.len() == self.size@
    &&& self.size@ == self.range@.end - self.range@.start
    &&& self.range@.start % self.size@ == 0
    &&& self.range@.end % self.size@ == 0
    &&& self.range@.start <= self.range@.end < MAX_PADDR

}

Well-formedness invariant for FrameContents.

§Invariant

contents.len() == size.
size == range.end - range.start.
range.start and range.end are aligned to size.
range is ordered and remains below MAX_PADDR.

Auto Trait Implementations§

impl Freeze for FrameContents

impl RefUnwindSafe for FrameContents

impl Send for FrameContents

impl Sync for FrameContents

impl Unpin for FrameContents

impl UnwindSafe for FrameContents

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, VERUS_SPEC__A> FromSpec<T> for VERUS_SPEC__A
where VERUS_SPEC__A: From<T>,

fn obeys_from_spec() -> bool

fn from_spec(v: T) -> VERUS_SPEC__A

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

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Calls U::from(self).

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

impl<T, VERUS_SPEC__A> IntoSpec<T> for VERUS_SPEC__A
where VERUS_SPEC__A: Into<T>,

fn obeys_into_spec() -> bool

fn into_spec(self) -> T

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

fn obeys_into_spec() -> bool

fn into_spec(self) -> U

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

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, VERUS_SPEC__A> TryFromSpec<T> for VERUS_SPEC__A
where VERUS_SPEC__A: TryFrom<T>,

fn obeys_try_from_spec() -> bool

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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T, VERUS_SPEC__A> TryIntoSpec<T> for VERUS_SPEC__A
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where U: TryFrom<T>,

fn obeys_try_into_spec() -> bool

fn try_into_spec(self) -> Result<U, <U as TryFrom<T>>::Error>