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InFlight

Struct InFlight 

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pub struct InFlight<'dma, T: ?Sized + 'dma> { /* private fields */ }
Expand description

Non-blocking DMA transfer token.

Owns a BorrowedForDma for the transfer duration; the &mut reborrow inside prevents CPU access and re-submission until the transfer completes. Completion (polling or waiting) consumes the InFlight and returns the BorrowedForDma (which can then be dropped to release the &mut back to the caller).

The concrete start_*_typed methods that produce InFlight values land with the typed DMA2D API in Step 3 of the refactor plan.

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impl<'dma, T: ?Sized + 'dma> InFlight<'dma, T>

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pub fn new(borrow: BorrowedForDma<'dma, T>) -> Self

Wrap a BorrowedForDma in an InFlight — used by DMA engines to hand the borrow back to the caller on submission.

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pub fn into_borrow(self) -> BorrowedForDma<'dma, T>

Release the underlying BorrowedForDma — called by DMA-engine completion handlers when the transfer is done and the CPU may touch the buffer again.

Auto Trait Implementations§

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impl<'dma, T> !UnwindSafe for InFlight<'dma, T>

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impl<'dma, T> Freeze for InFlight<'dma, T>
where T: ?Sized,

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impl<'dma, T> RefUnwindSafe for InFlight<'dma, T>
where T: RefUnwindSafe + ?Sized,

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impl<'dma, T> Send for InFlight<'dma, T>
where T: Send + ?Sized,

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impl<'dma, T> Sync for InFlight<'dma, T>
where T: Sync + ?Sized,

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impl<'dma, T> Unpin for InFlight<'dma, T>
where T: ?Sized,

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impl<'dma, T> UnsafeUnpin for InFlight<'dma, T>
where T: ?Sized,

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, 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.