Struct Arena 

pub struct Arena { /* private fields */ }

Memory arena for FFI allocations

All memory allocated from this arena is freed when the arena is dropped.

Implementations

impl Arena

pub fn new() -> Self

Create a new empty arena

pub fn alloc(&mut self, size: usize) -> *mut u8

Allocate memory from the arena

Returns null on allocation failure

pub fn alloc_zeroed(&mut self, size: usize) -> *mut u8

Allocate and zero-initialize memory from the arena

pub fn alloc_type<T>(&mut self) -> *mut T

Allocate memory for a type T

pub fn copy_bytes(&mut self, bytes: &[u8]) -> *mut u8

Allocate and copy bytes into the arena

pub fn clear(&mut self)

Clear all allocations

pub fn allocation_count(&self) -> usize

Get the number of allocations

pub fn total_size(&self) -> usize

Get the total allocated size

Trait Implementations

impl Default for Arena

fn default() -> Self

Returns the “default value” for a type.

impl Drop for Arena

fn drop(&mut self)

Executes the destructor for this type.

impl Send for Arena

impl Sync for Arena