60 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			60 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
/*
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   Copyright The containerd Authors.
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   Licensed under the Apache License, Version 2.0 (the "License");
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   you may not use this file except in compliance with the License.
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   You may obtain a copy of the License at
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       http://www.apache.org/licenses/LICENSE-2.0
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   Unless required by applicable law or agreed to in writing, software
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   distributed under the License is distributed on an "AS IS" BASIS,
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   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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   See the License for the specific language governing permissions and
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   limitations under the License.
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*/
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package tracing
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import (
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	"context"
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	"go.opentelemetry.io/otel"
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	"go.opentelemetry.io/otel/attribute"
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	"go.opentelemetry.io/otel/codes"
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	"go.opentelemetry.io/otel/trace"
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)
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// StartSpan starts child span in a context.
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func StartSpan(ctx context.Context, opName string, opts ...trace.SpanStartOption) (context.Context, trace.Span) {
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	if parent := trace.SpanFromContext(ctx); parent != nil && parent.SpanContext().IsValid() {
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		return parent.TracerProvider().Tracer("").Start(ctx, opName, opts...)
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	}
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	return otel.Tracer("").Start(ctx, opName, opts...)
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}
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// StopSpan ends the span specified
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func StopSpan(span trace.Span) {
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	span.End()
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}
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// CurrentSpan returns current span from context or noopSpan if no span exists.
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func CurrentSpan(ctx context.Context) trace.Span {
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	return trace.SpanFromContext(ctx)
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}
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// SetSpanStatus sets the status of the current span.
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// If an error is encountered, it records the error and sets span status to Error.
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func SetSpanStatus(span trace.Span, err error) {
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	if err != nil {
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		span.RecordError(err)
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		span.SetStatus(codes.Error, err.Error())
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	} else {
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		span.SetStatus(codes.Ok, "")
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	}
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}
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func SpanAttribute(k string, v interface{}) attribute.KeyValue {
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	return any(k, v)
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}
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