tracing

type Span interface {
	// Tracer returns the Tracer that created this Span.
	Tracer() opentracing.Tracer

	// Context yields the SpanContext for this Span
	Context() opentracing.SpanContext

	// Finish finishes the span.
	Finish()
	// Cancel cancels the span, it should be called before Finish called.
	// It will cancel all descendent spans.
	Cancel()

	// NewChild creates a child span.
	NewChild(name string) Span
	// NewChild creates a child span with start time.
	NewChildWithStart(name string, startAt time.Time) Span

	// SetName changes the span name.
	SetName(name string)

	// LogKV logs key:value for the span.
	//
	// The keys must all be strings. The values may be strings, numeric types,
	// bools, Go error instances, or arbitrary structs.
	//
	// Example:
	//
	//    span.LogKV(
	//        "event", "soft error",
	//        "type", "cache timeout",
	//        "waited.millis", 1500)
	LogKV(kvs ...interface{})
}

type Spec struct {
	ServiceName string `yaml:"serviceName" jsonschema:"required"`

	Zipkin *zipkin.Spec `yaml:"zipkin" jsonschema:"omitempty"`
}

type Tracing struct {
	opentracing.Tracer
	// contains filtered or unexported fields
}