084387e0b4
This just makes the implementation a little cleaner. It also makes the trace exporter pluggable. Signed-off-by: Brian Goff <cpuguy83@gmail.com>
40 lines
1.2 KiB
Go
40 lines
1.2 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/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) (trace.Span, context.Context) {
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if parent := trace.SpanFromContext(ctx); parent != nil && parent.SpanContext().IsValid() {
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ctx, span := parent.TracerProvider().Tracer("").Start(ctx, opName, opts...)
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return span, ctx
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}
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ctx, span := otel.Tracer("").Start(ctx, opName, opts...)
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return span, ctx
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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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