Struct MemoryArena 

pub struct MemoryArena { /* private fields */ }

Arena allocator for fast temporary allocations.

Implementations

impl MemoryArena

pub fn new() -> Self

Create a new arena with default chunk size.

pub fn with_chunk_size(chunk_size: usize) -> Self

Create a new arena with specified chunk size.

pub fn allocate(&self, size: usize) -> Option<NonNull<u8>>

Allocate memory from the arena.

pub fn allocate_aligned(&self, size: usize, align: usize) -> Option<NonNull<u8>>

Allocate aligned memory from the arena.

pub fn allocate_value<T>(&self, value: T) -> Option<&mut T>

Allocate and initialize memory with a value.

pub fn allocate_slice<T: Copy>(&self, len: usize) -> Option<&mut [T]>

Allocate a slice from the arena.

pub fn reset(&self)

Reset the arena, freeing all allocations.

pub fn clear(&self)

Clear the arena completely, deallocating all chunks.

pub fn total_allocated(&self) -> usize

Get the total memory allocated by this arena.

pub fn total_used(&self) -> usize

Get the total memory used within allocated chunks.

pub fn total_remaining(&self) -> usize

Get the total remaining capacity across all allocated chunks.

Trait Implementations

impl Default for MemoryArena

fn default() -> Self

Returns the “default value” for a type.