Struct ArenaAllocator 

pub struct ArenaAllocator { /* private fields */ }

The global arena allocator managing multiple epochs.

Implementations

impl ArenaAllocator

pub fn new() -> Self

Creates a new arena allocator.

pub fn with_chunk_size(chunk_size: usize) -> Self

Creates a new arena allocator with a custom chunk size.

pub fn current_epoch(&self) -> EpochId

Returns the current epoch.

pub fn new_epoch(&self) -> EpochId

Creates a new epoch and returns its ID.

pub fn arena(&self, epoch: EpochId) -> impl Deref<Target = Arena> + '_

Gets the arena for a specific epoch.

Panics

Panics if the epoch doesn’t exist.

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

Allocates in the current epoch.

pub fn drop_epoch(&self, epoch: EpochId)

Drops an epoch, freeing all its memory.

This should only be called when no readers are using this epoch.

pub fn total_allocated(&self) -> usize

Returns total memory allocated across all epochs.

Trait Implementations

impl Default for ArenaAllocator

fn default() -> Self

Returns the “default value” for a type.