Trait envoy_sdk::host::stats::Counter

pub trait Counter {
    fn add(&self, offset: u64) -> Result<()>;
    fn value(&self) -> Result<u64>;

    fn inc(&self) -> Result<()> { ... }
}

An interface of the Envoy Counter.

A Counter can only be incremented.

Examples

Basic usage of Counter:

use envoy::host::Stats;

let stats = Stats::default();

let requests_total = stats.counter("requests_total")?;

requests_total.inc()?;

Required methods

fn add(&self, offset: u64) -> Result<()>

Increments counter by a given offset.

fn value(&self) -> Result<u64>

Returns current value of the counter.

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Provided methods

fn inc(&self) -> Result<()>

Increments counter by 1.

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Implementations on Foreign Types

impl<T: Counter> Counter for Rc<T>

fn add(&self, offset: u64) -> Result<()>

Increments counter by a given offset.

fn value(&self) -> Result<u64>

Returns current value of the counter.

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Implementors

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