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ParallelCtxRef

Struct ParallelCtxRef 

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pub struct ParallelCtxRef<'a, T> { /* private fields */ }
Expand description

A handle to a &'a T borrow that is Send + Sync when T: ParallelEncodeCtx. Worker closures use it to reach the immutable subset of the backend context they need while recording commands into their own command buffer/list.

The borrow is held directly, so its lifetime is enforced by the type. The wrapper is only used inside each backend’s parallel-encoder fan-out in graph_exec.rs, which joins all workers before the outer borrow returns. The Send/Sync claim rests entirely on the T: ParallelEncodeCtx marker.

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impl<'a, T> ParallelCtxRef<'a, T>

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pub fn new(ctx: &'a T) -> Self

Wrap ctx so worker threads can share it.

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pub fn as_ctx(&self) -> &T

Borrow the wrapped context.

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impl<T> Clone for ParallelCtxRef<'_, T>

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<T> Copy for ParallelCtxRef<'_, T>

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impl<T: ParallelEncodeCtx> Send for ParallelCtxRef<'_, T>

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impl<T: ParallelEncodeCtx> Sync for ParallelCtxRef<'_, T>

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impl<'a, T> Freeze for ParallelCtxRef<'a, T>
where &'a T: Freeze,

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impl<'a, T> RefUnwindSafe for ParallelCtxRef<'a, T>

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impl<'a, T> Unpin for ParallelCtxRef<'a, T>
where &'a T: Unpin,

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impl<'a, T> UnsafeUnpin for ParallelCtxRef<'a, T>

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impl<'a, T> UnwindSafe for ParallelCtxRef<'a, T>

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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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 = !

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.