Struct Counter

pub struct Counter { /* private fields */ }

OpenMetrics Counter to measure discrete events.

Single monotonically increasing value metric.

Implementations

impl Counter

pub fn new() -> Self

Constructs a new counter, based on the given help.

pub fn inc(&self) -> u64

Increases the Counter by 1, returning the previous value.

pub fn inc_by(&self, v: u64) -> u64

Increases the Counter by u64, returning the previous value.

pub fn set(&self, v: u64) -> u64

Sets the Counter value, returning the previous value.

Warning: this is not default behavior for a counter that should always be monotonically increasing.

pub fn get(&self) -> u64

Returns the current value of the Counter.

Trait Implementations

impl Debug for Counter

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

Formats the value using the given formatter.

impl Default for Counter

fn default() -> Counter

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Counter

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Metric for Counter

fn value(&self) -> MetricValue

Returns the current value of this metric.

fn type(&self) -> MetricType

Returns the type of this metric.

fn as_any(&self) -> &dyn Any

Casts this metric to Any for downcasting to concrete types.

impl Serialize for Counter

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.