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BatchBufferPool

molframe_core::execution

Struct BatchBufferPool 

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pub struct BatchBufferPool<B: Batch> { /* private fields */ }
Expand description

One-slot pool that keeps a reusable batch and its memory charge together.

The slot is intentionally singular: concurrent consumers may hold several leases, but an idle source never retains capacity proportional to their count. Dropping the pool releases both the allocation and its accounting.

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impl<B: Batch> BatchBufferPool<B>

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pub const fn new() -> Self

Creates an empty recycling slot.

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pub fn take(&self) -> Option<(B, MemoryReservation)>

Takes exclusive ownership of the reusable batch and its live charge.

Returns None while the previous lease is finishing destruction. No raw shared backing owner escapes the pool; consumers share the lease.

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pub fn put( &self, batch: B, reservation: MemoryReservation, ) -> Result<(), MemoryBudgetError>

Returns an exclusively owned reusable batch and its charge. An occupied slot drops the new buffer before releasing its reservation.

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Rejects capacity larger than its reservation before retaining the batch.

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impl<B: Debug + Batch> Debug for BatchBufferPool<B>

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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<B: Batch> Default for BatchBufferPool<B>

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. 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.