Struct BufferPool 

pub struct BufferPool<T> { /* private fields */ }

Simple buffer pool that can be reused across calls to avoid allocations.

Implementations

impl<T> BufferPool<T>

pub fn new() -> Self

Create a new pool with zero capacity.

pub fn with_capacity(n: usize) -> Self

Create a new pool with the given capacity.

pub fn len(&self) -> usize

Returns the number of elements that the caller requested to populate.

pub fn capacity(&self) -> usize

Returns the total reserved space in the pool.

pub fn ensure_len(&mut self, n: usize)

Ensure the internal buffer can hold at least n elements.

pub unsafe fn uninit_slice_mut(&mut self) -> &mut [MaybeUninit<T>]

Gives mutable access to the uninitialized portion of the buffer.

Safety

The caller must fill the first self.len entries before any call to initialized_slice or initialized_slice_mut.

pub unsafe fn initialized_slice(&self) -> &[T]

Access the initialized slice.

Safety

The caller must guarantee the first self.len entries are fully initialized.

pub unsafe fn initialized_slice_mut(&mut self) -> &mut [T]

Mutable access to the initialized slice.

Safety

The caller must guarantee the first self.len entries are fully initialized.

pub fn as_mut_slice_init(&mut self) -> &mut [MaybeUninit<T>]

Mutable access for initializing, returning the raw uninitialized bytes.

pub unsafe fn as_slice(&self) -> &[T]

Immutable view on the raw bytes previously validated as initialized.

Safety

Use only if the caller has completed initialization for the first self.len entries.

Trait Implementations

impl<T> Clone for BufferPool<T>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for BufferPool<T>

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

Formats the value using the given formatter.

impl<T> Default for BufferPool<T>

fn default() -> Self

Returns the “default value” for a type.