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VolatileSliceGuard

Struct VolatileSliceGuard 

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pub struct VolatileSliceGuard<'a, PtrGuardType, BitmapType: Bitmap> { /* private fields */ }
Available on crate feature vm-memory only.
Expand description

Ensures an I/O vector’s validity when created from [VolatileSlice].

[VolatileSlice] arrays may require being explicitly mapped before use (and unmapped after), and this guard ensures that the memory is mapped until it is dropped.

Further, for mutable vectors (IoVectorMut), it will also dirty the corresponding bitmap slices when dropped, assuming the whole vector has been written.

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impl<P, B: Bitmap> Drop for VolatileSliceGuard<'_, P, B>

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fn drop(&mut self)

Executes the destructor for this type. Read more
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fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)
Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned. Read more

Auto Trait Implementations§

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impl<'a, PtrGuardType, BitmapType> Freeze for VolatileSliceGuard<'a, PtrGuardType, BitmapType>
where Vec<PtrGuardType>: Freeze, Option<Vec<(&'a BitmapType, usize)>>: Freeze,

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impl<'a, PtrGuardType, BitmapType> RefUnwindSafe for VolatileSliceGuard<'a, PtrGuardType, BitmapType>

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impl<'a, PtrGuardType, BitmapType> Send for VolatileSliceGuard<'a, PtrGuardType, BitmapType>
where Vec<PtrGuardType>: Send, Option<Vec<(&'a BitmapType, usize)>>: Send,

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impl<'a, PtrGuardType, BitmapType> Sync for VolatileSliceGuard<'a, PtrGuardType, BitmapType>
where Vec<PtrGuardType>: Sync, Option<Vec<(&'a BitmapType, usize)>>: Sync,

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impl<'a, PtrGuardType, BitmapType> Unpin for VolatileSliceGuard<'a, PtrGuardType, BitmapType>
where Vec<PtrGuardType>: Unpin, Option<Vec<(&'a BitmapType, usize)>>: Unpin,

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impl<'a, PtrGuardType, BitmapType> UnsafeUnpin for VolatileSliceGuard<'a, PtrGuardType, BitmapType>

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impl<'a, PtrGuardType, BitmapType> UnwindSafe for VolatileSliceGuard<'a, PtrGuardType, BitmapType>
where Vec<PtrGuardType>: UnwindSafe, Option<Vec<(&'a BitmapType, usize)>>: UnwindSafe,

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> 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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

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

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.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more