61 lines
1.5 KiB
Go
61 lines
1.5 KiB
Go
// Copyright 2023 LiveKit, Inc.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package tracer
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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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"go.opentelemetry.io/otel/trace/noop"
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)
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type TracerProvider = trace.TracerProvider
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type Tracer = trace.Tracer
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type Span = trace.Span
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var globalTracer Tracer
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// SetTracer can be used for your own tracing (for example, with Lightstep).
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//
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// Deprecated: Use otel.SetTracerProvider.
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func SetTracer(t Tracer) {
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globalTracer = t
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}
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// Start a new span.
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//
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// Deprecated: Use otel.Tracer for your service, and call Start on it instead.
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func Start(ctx context.Context, spanName string, opts ...any) (context.Context, Span) {
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tracer := globalTracer
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if tracer == nil {
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tracer = otel.Tracer("legacy")
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}
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var sopts []trace.SpanStartOption
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for _, opt := range opts {
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switch opt := opt.(type) {
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case trace.SpanStartOption:
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sopts = append(sopts, opt)
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}
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}
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return tracer.Start(ctx, spanName, sopts...)
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}
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type NoOpTracer = noop.Tracer
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type NoOpSpan = noop.Span
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