Struct Arena 

pub struct Arena { /* private fields */ }

A bump-allocator arena within a MemorySlab.

base_offset is the starting position inside the slab. Allocations grow upward; reset() reclaims all space.

Implementations

impl Arena

pub fn new(base_offset: usize, size: usize) -> Self

Create a new arena starting at base_offset with the given size.

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

Bump-allocate size bytes with the given alignment.

Returns the absolute offset within the slab on success.

pub fn reset(&mut self)

Reset the arena, reclaiming all allocated space.

pub fn used(&self) -> usize

Number of bytes currently consumed (including alignment padding).

pub fn remaining(&self) -> usize

Number of bytes still available.