Struct Counter

pub struct Counter { /* private fields */ }

Essentially an AtomicUsize that is clonable and whose count is based on the number of copies (and their size). The count is automatically updated on Drop.

If you want a weak reference to the counter that doesn’t affect the count, see: WeakCounter.

Implementations

impl Counter

pub fn builder() -> CounterBuilder

Create a new default CounterBuilder.

pub fn downgrade(self) -> WeakCounter

Consume self (causing the count to decrease by size) and return a weak reference to the count through a WeakCounter.

pub fn spawn_downgrade(&self) -> WeakCounter

Create a new WeakCounter without consuming self.

pub fn count(&self) -> usize

This method is inherently racey. Assume the count will have changed once the value is observed.

Trait Implementations

impl Clone for Counter

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Counter

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

Formats the value using the given formatter.

impl Display for Counter

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

Formats the value using the given formatter.

impl Drop for Counter

fn drop(&mut self)

Executes the destructor for this type.