mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-30 07:40:06 +01:00
34 lines
960 B
Go
34 lines
960 B
Go
// Copyright 2018, OpenCensus 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.
|
|
|
|
//go:build go1.11
|
|
// +build go1.11
|
|
|
|
package trace
|
|
|
|
import (
|
|
"context"
|
|
t "runtime/trace"
|
|
)
|
|
|
|
func startExecutionTracerTask(ctx context.Context, name string) (context.Context, func()) {
|
|
if !t.IsEnabled() {
|
|
// Avoid additional overhead if
|
|
// runtime/trace is not enabled.
|
|
return ctx, func() {}
|
|
}
|
|
nctx, task := t.NewTask(ctx, name)
|
|
return nctx, task.End
|
|
}
|