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48 lines
1.6 KiB
Go
48 lines
1.6 KiB
Go
// Copyright The OpenTelemetry Authors
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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 otel // import "go.opentelemetry.io/otel"
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import (
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"go.opentelemetry.io/otel/internal/global"
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"go.opentelemetry.io/otel/trace"
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)
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// Tracer creates a named tracer that implements Tracer interface.
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// If the name is an empty string then provider uses default name.
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//
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// This is short for GetTracerProvider().Tracer(name, opts...)
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func Tracer(name string, opts ...trace.TracerOption) trace.Tracer {
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return GetTracerProvider().Tracer(name, opts...)
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}
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// GetTracerProvider returns the registered global trace provider.
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// If none is registered then an instance of NoopTracerProvider is returned.
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//
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// Use the trace provider to create a named tracer. E.g.
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//
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// tracer := otel.GetTracerProvider().Tracer("example.com/foo")
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//
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// or
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//
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// tracer := otel.Tracer("example.com/foo")
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func GetTracerProvider() trace.TracerProvider {
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return global.TracerProvider()
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}
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// SetTracerProvider registers `tp` as the global trace provider.
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func SetTracerProvider(tp trace.TracerProvider) {
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global.SetTracerProvider(tp)
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}
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