oc

package
v0.37.0 Latest Latest
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 Go to latest Published: Mar 12, 2024 License: Apache-2.0 Imports: 10 Imported by: 0

Documentation

Overview

Package oc supports OpenCensus tracing and metrics for the Go Cloud Development Kit.

Index

Constants

This section is empty.

Variables

View Source 
var (
	MethodKey   = tag.MustNewKey("gocdk_method")
	StatusKey   = tag.MustNewKey("gocdk_status")
	ProviderKey = tag.MustNewKey("gocdk_provider")
)

Tag keys used for the standard Go CDK views.

Functions

func LatencyMeasure 

func LatencyMeasure(pkg string) *stats.Float64Measure

LatencyMeasure returns the measure for method call latency used by Go CDK APIs.

func ProviderName 

func ProviderName(driver interface{}) string

ProviderName returns the name of the provider associated with the driver value. It is intended to be used to set Tracer.Provider. It actually returns the package path of the driver's type.

func Views 

func Views(pkg string, latencyMeasure *stats.Float64Measure) []*view.View

Views returns the views supported by Go CDK APIs.

Types

type Tracer 

type Tracer struct {
	Package        string
	Provider       string
	LatencyMeasure *stats.Float64Measure
}

A Tracer supports OpenCensus tracing and latency metrics.

func (*Tracer) End 

func (t *Tracer) End(ctx context.Context, err error)

End ends a span with the given error, and records a latency measurement.

func (*Tracer) Start 

func (t *Tracer) Start(ctx context.Context, methodName string) context.Context

Start adds a span to the trace, and prepares for recording a latency measurement.

Source Files

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