Struct RegionManager 

pub struct RegionManager { /* private fields */ }

Manages a hierarchy of memory regions.

Implementations

impl RegionManager

pub fn new() -> Self

Create a new region manager.

pub fn current_region_id(&self) -> u64

Get the current active region ID.

pub fn push_region(&mut self) -> u64

Push a new region scope.

pub fn push_region_with_size(&mut self, chunk_size: usize) -> u64

Push a region with a custom size.

pub fn pop_region(&mut self) -> Option<u64>

Pop the current region scope (deactivating it).

pub fn alloc(&mut self, size: usize) -> Option<(u64, ArenaOffset)>

Allocate in the current region.

pub fn get_bytes( &self, region_id: u64, loc: &ArenaOffset, size: usize, ) -> Option<&[u8]>

Get bytes from a specific region.

pub fn reset_region(&mut self, region_id: u64)

Reset a region and all its children.

pub fn get_region(&self, id: u64) -> Option<&Region>

Get a reference to a region.

pub fn get_region_mut(&mut self, id: u64) -> Option<&mut Region>

Get a mutable reference to a region.

pub fn num_regions(&self) -> usize

Number of regions.

pub fn total_bytes_used(&self) -> usize

Total bytes used across all regions.

pub fn total_capacity(&self) -> usize

Total capacity across all regions.

pub fn scope_depth(&self) -> usize

Depth of the current scope stack.

pub fn remove_region(&mut self, region_id: u64)

Remove a region and all its children.

Trait Implementations

impl Debug for RegionManager

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

Formats the value using the given formatter.

impl Default for RegionManager

fn default() -> Self

Returns the “default value” for a type.