Struct virtio_device::queue::Desc

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pub struct Desc(pub DescType, pub DriverRange);
Expand description

Reference to descriptor data.

Provides a higher level representation of a descriptors payload, compared to what ring::Desc::data reports. The conversion of a ring::Desc into a Desc necessitates some error checking and can fail with a DescError::BadRange.

Is provided as a DriverRange as the DescChain and its iterator have no way to translate a DriverRange and this responsibility is offloaded to the caller.

Tuple Fields§

§0: DescType§1: DriverRange

Trait Implementations§

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impl Clone for Desc

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fn clone(&self) -> Desc

Returns a copy 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 Debug for Desc

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

Formats the value using the given formatter. Read more
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impl PartialEq for Desc

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fn eq(&self, other: &Desc) -> bool

This method tests for self and other values to be equal, and is used by ==.
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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.
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impl TryFrom<Desc> for Desc

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type Error = DescError

The type returned in the event of a conversion error.
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fn try_from(desc: Desc) -> Result<Self, Self::Error>

Performs the conversion.
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impl Eq for Desc

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impl StructuralPartialEq for Desc

Auto Trait Implementations§

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impl RefUnwindSafe for Desc

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impl Send for Desc

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impl Sync for Desc

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impl Unpin for Desc

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impl UnwindSafe for Desc

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, 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.