global

Documentation

Index

• func Handle(err error)
• func Handler() oterror.Handler
• func Meter(instrumentationName string, opts ...metric.MeterOption) metric.Meter
• func MeterProvider() metric.Provider
• func Propagators() propagation.Propagators
• func SetHandler(h oterror.Handler)
• func SetMeterProvider(mp metric.Provider)
• func SetPropagators(p propagation.Propagators)
• func SetTraceProvider(tp trace.Provider)
• func TraceProvider() trace.Provider
• func Tracer(name string) trace.Tracer

Functions

func Handle

func Handle(err error)

Handle is a convience function for Handler().Handle(err)

func Handler

func Handler() oterror.Handler

Handler returns the global Handler instance. If no Handler instance has be explicitly set yet, a default Handler is returned that logs to STDERR until an Handler is set (all functionality is delegated to the set Handler once it is set).

func Meter

func Meter(instrumentationName string, opts ...metric.MeterOption) metric.Meter

Meter creates an implementation of the Meter interface from the global Provider. The instrumentationName must be the name of the library providing instrumentation. This name may be the same as the instrumented code only if that code provides built-in instrumentation. If the instrumentationName is empty, then a implementation defined default name will be used instead.

This is short for MeterProvider().Meter(name)

func MeterProvider

func MeterProvider() metric.Provider

MeterProvider returns the registered global meter provider. If none is registered then a default meter provider is returned that forwards the Meter interface to the first registered Meter.

Use the meter provider to create a named meter. E.g.

meter := global.MeterProvider().Meter("example.com/foo")

or

meter := global.Meter("example.com/foo")

func Propagators

func Propagators() propagation.Propagators

Propagators returns the registered global propagators instance. If none is registered then an instance of propagators.NoopPropagators is returned.

func SetHandler

func SetHandler(h oterror.Handler)

SetHandler sets the global Handler to be h.

func SetMeterProvider

func SetMeterProvider(mp metric.Provider)

SetMeterProvider registers `mp` as the global meter provider.

func SetPropagators

func SetPropagators(p propagation.Propagators)

SetPropagators registers `p` as the global propagators instance.

func SetTraceProvider

func SetTraceProvider(tp trace.Provider)

SetTraceProvider registers `tp` as the global trace provider.

func TraceProvider

func TraceProvider() trace.Provider

TraceProvider returns the registered global trace provider. If none is registered then an instance of trace.NoopProvider is returned.

Use the trace provider to create a named tracer. E.g.

tracer := global.TraceProvider().Tracer("example.com/foo")

or

tracer := global.Tracer("example.com/foo")

func Tracer

func Tracer(name string) trace.Tracer

Tracer creates a named tracer that implements Tracer interface. If the name is an empty string then provider uses default name.

This is short for TraceProvider().Tracer(name)