forked from cockroachdb/cockroach
/
span_context_carrier.go
48 lines (41 loc) · 1.53 KB
/
span_context_carrier.go
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// Copyright 2016 The Cockroach Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
// implied. See the License for the specific language governing
// permissions and limitations under the License.
//
// Author: Tobias Schottdorf (tobias.schottdorf@gmail.com)
package tracing
import basictracer "github.com/opentracing/basictracer-go"
var _ basictracer.DelegatingCarrier = &SpanContextCarrier{}
// SetState implements basictracer.DelegatingCarrier.
func (sp *SpanContextCarrier) SetState(traceID, spanID uint64, sampled bool) {
sp.TraceID = traceID
sp.SpanID = spanID
sp.Sampled = sampled
}
// State implements basictracer.DelegatingCarrier.
func (sp *SpanContextCarrier) State() (traceID, spanID uint64, sampled bool) {
return sp.TraceID, sp.SpanID, sp.Sampled
}
// SetBaggageItem implements basictracer.DelegatingCarrier.
func (sp *SpanContextCarrier) SetBaggageItem(key, value string) {
if sp.Baggage == nil {
sp.Baggage = make(map[string]string)
}
sp.Baggage[key] = value
}
// GetBaggage implements basictracer.DelegatingCarrier.
func (sp *SpanContextCarrier) GetBaggage(fn func(key, value string)) {
for k, v := range sp.Baggage {
fn(k, v)
}
}