metrics

package

v1.6.3 Latest Latest Go to latest Published: May 23, 2026 License: MIT Imports: 2 Imported by: 0

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Valid go.mod file
Redistributable license
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Stable version
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Repository

github.com/stackshy/cloudemu

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Documentation ¶

Overview ¶

Package metrics provides in-memory metrics collection for cloudemu services.

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Collector ¶

type Collector struct {
	// contains filtered or unexported fields
}

Collector collects in-memory metrics.

func NewCollector ¶

func NewCollector() *Collector

NewCollector creates a new Collector.

func (*Collector) All ¶

func (c *Collector) All() []Metric

All returns a copy of all metrics.

func (*Collector) Counter ¶

func (c *Collector) Counter(name string, value float64, labels map[string]string)

Counter increments a counter metric.

func (*Collector) Gauge ¶

func (c *Collector) Gauge(name string, value float64, labels map[string]string)

Gauge records a gauge metric.

func (*Collector) Histogram ¶

func (c *Collector) Histogram(name string, duration time.Duration, labels map[string]string)

Histogram records a duration metric.

func (*Collector) Reset ¶

func (c *Collector) Reset()

Reset clears all collected metrics.

type Metric ¶

type Metric struct {
	Name      string
	Type      MetricType
	Value     float64
	Labels    map[string]string
	Timestamp time.Time
}

Metric is a recorded metric data point.

type MetricType ¶

type MetricType int

MetricType identifies the type of metric.

const (
	CounterType MetricType = iota
	GaugeType
	HistogramType
)

type Query ¶

type Query struct {
	// contains filtered or unexported fields
}

Query provides filtering over collected metrics.

func NewQuery ¶

func NewQuery(c *Collector) *Query

NewQuery creates a Query from a collector.

func (*Query) ByLabel ¶

func (q *Query) ByLabel(key, value string) *Query

ByLabel filters metrics that have the given label key=value.

func (*Query) ByName ¶

func (q *Query) ByName(name string) *Query

ByName filters metrics by name.

func (*Query) ByType ¶

func (q *Query) ByType(t MetricType) *Query

ByType filters metrics by type.

func (*Query) Count ¶

func (q *Query) Count() int

Count returns the number of matching metrics.

func (*Query) Results ¶

func (q *Query) Results() []Metric

Results returns all matching metrics.

func (*Query) Sum ¶

func (q *Query) Sum() float64

Sum returns the sum of all matching metric values.

Source Files ¶

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