Struct AllocTracker

pub struct AllocTracker { /* private fields */ }

Allocation tracker with total memory limit.

Implementations

impl AllocTracker

pub fn with_limit(bytes_left: usize) -> Self

Creates a memory allocation tracker with allowed allocation limit.

pub fn alloc<T>(&self, count: usize) -> Result<AllocHandle, Error>

Records an allocation of count number of T, and returns handle of the record.

Returns an error if the allocation exceeds the current limit.

pub fn expand_limit(&self, by_bytes: usize)

Expands the current limit by by_bytes bytes.

pub fn shrink_limit(&self, by_bytes: usize) -> Result<(), Error>

Shrinks the current limit by by_bytes bytes.

Returns an error if the total amount of current allocation doesn’t allow shrinking the limit.

Trait Implementations

impl Clone for AllocTracker

fn clone(&self) -> AllocTracker

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for AllocTracker

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

Formats the value using the given formatter.