Struct LinearArena 

pub struct LinearArena { /* private fields */ }

A simple linear (bump) arena allocator over a fixed backing buffer.

Implementations

impl LinearArena

pub fn new(capacity: usize) -> Self

Creates a new arena with capacity bytes.

pub fn alloc(&mut self, size: usize, align: usize) -> Option<usize>

Allocates size bytes with align alignment. Returns the offset into the backing buffer, or None if full.

pub fn reset(&mut self)

Resets the arena without releasing the backing buffer.

pub fn used(&self) -> usize

Returns the number of used bytes.

pub fn capacity(&self) -> usize

Returns the total capacity.

pub fn stats(&self) -> &ArenaStatsExt

Returns a reference to the collected statistics.

Trait Implementations

impl ArenaAllocator for LinearArena

fn alloc_raw(&mut self, bytes: usize, align: usize) -> Option<usize>

Allocates bytes bytes with align alignment. Returns Some(offset) on success or None on failure.

fn used_bytes(&self) -> usize

Returns the number of bytes currently used.