Skip to main content

BatchBufferPool

molframe_core::execution

Struct BatchBufferPool 

Source 
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.

Implementations§

Source§

impl<B: Batch> BatchBufferPool<B>

Source

pub const fn new() -> Self

Creates an empty recycling slot.

Source

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.

Source

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.

§Errors

Rejects capacity larger than its reservation before retaining the batch.

Trait Implementations§

Source§

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

Source§

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

Formats the value using the given formatter. Read more
Source§

impl<B: Batch> Default for BatchBufferPool<B>

Source§

fn default() -> Self

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

Auto Trait Implementations§

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> IntoEither for T

Source§

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
Source§

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
Source§

impl<T> Pointable for T

Source§

const ALIGN: usize

The alignment of pointer.
Source§

type Init = T

The type for initializers.
Source§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
Source§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
Source§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
Source§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
Source§

impl<T> Same for T

Source§

type Output = T

Should always be Self
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = !

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, !>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.