metrics

Documentation

Overview

Package metrics provides simple metrics tracking features.

Index

• type Provider
  • func NewProvider(calculateHints bool) Provider
• type Store
  • func (s *Store) MeasureSince(key string, start time.Time)
  • func (s *Store) Reset()
  • func (s *Store) TrackValue(key string, value interface{})
  • func (s *Store) WriteMetrics(w io.Writer)

Types

type Provider

type Provider interface {
	// MeasureSince adds a measurement for key to the metric store.
	// Used with defer and time.Now().
	MeasureSince(key string, start time.Time)

	// WriteMetrics will write a summary of the metrics to w.
	WriteMetrics(w io.Writer)

	// TrackValue tracks the value for diff calculations etc.
	TrackValue(key string, value interface{})

	// Reset clears the metric store.
	Reset()
}

The Provider interface defines an interface for measuring metrics.

func NewProvider

func NewProvider(calculateHints bool) Provider

NewProvider returns a new instance of a metric store.

type Store

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

Store provides storage for a set of metrics.

func (*Store) MeasureSince

func (s *Store) MeasureSince(key string, start time.Time)

MeasureSince adds a measurement for key to the metric store.

func (*Store) Reset

func (s *Store) Reset()

Reset clears the metrics store.

func (*Store) TrackValue

func (s *Store) TrackValue(key string, value interface{})

TrackValue tracks the value for diff calculations etc.

func (*Store) WriteMetrics

func (s *Store) WriteMetrics(w io.Writer)

WriteMetrics writes a summary of the metrics to w.