kernel::scatterlist

Struct Owned

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pub struct Owned<P> { /* private fields */ }
Expand description

The Owned generic type of an SGTable.

A SGTable<Owned> signifies that the SGTable owns all associated resources:

  • The backing memory pages.
  • The struct sg_table allocation (sgt).
  • The DMA mapping, managed through a Devres-managed DmaMappedSgt.

Users interact with this type through the SGTable handle and do not need to manage Owned directly.

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impl<P> Owned<P>

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pub fn project<'__pin>( self: Pin<&'__pin mut Self>, ) -> OwnedProjection<'__pin, P>

Pin-projects all fields of Self.

These fields are structurally pinned:

  • dma

These fields are not structurally pinned:

  • sgt
  • _pages

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impl<P> HasPinData for Owned<P>

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type PinData = __ThePinData<P>

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unsafe fn __pin_data() -> Self::PinData

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impl<P: Send> Send for Owned<P>

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impl<P: Sync> Sync for Owned<P>

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impl<P> !Freeze for Owned<P>

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impl<P> !RefUnwindSafe for Owned<P>

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impl<P> !UnwindSafe for Owned<P>

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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> Init<T> for T

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unsafe fn __init(self, slot: *mut T) -> Result<(), Infallible>

Initializes slot. Read more
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fn chain<F>(self, f: F) -> ChainInit<Self, F, T, E>
where F: FnOnce(&mut T) -> Result<(), E>,

First initializes the value using self then calls the function f with the initialized value. 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> PinInit<T> for T

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unsafe fn __pinned_init(self, slot: *mut T) -> Result<(), Infallible>

Initializes slot. Read more
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fn pin_chain<F>(self, f: F) -> ChainPinInit<Self, F, T, E>
where F: FnOnce(Pin<&mut T>) -> Result<(), E>,

First initializes the value using self then calls the function f with the initialized value. 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.