Struct Counter 

pub struct Counter(/* private fields */);

A metric which counts a value.

Implementations

impl Counter

pub fn new() -> Counter

Creates a new counter initialized to 0.

pub fn clear(&self)

Resets the counter to 0.

pub fn inc(&self)

Adds 1 to the counter.

pub fn dec(&self)

Subtracts 1 from the counter.

pub fn add(&self, n: i64)

Adds a number to the counter.

pub fn sub(&self, n: i64)

Subtracts a number from the counter.

pub fn count(&self) -> i64

Returns the current value of the counter.

Trait Implementations

impl Debug for Counter

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

Formats the value using the given formatter.

impl Default for Counter

fn default() -> Counter

Returns the “default value” for a type.