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mirror of https://github.com/ceph/ceph-csi.git synced 2024-12-22 13:00:19 +00:00
ceph-csi/vendor/go.opentelemetry.io/otel/trace/context.go
Madhu Rajanna 5a66991bb3 rebase: update kubernetes to latest
updating the kubernetes release to the
latest in main go.mod

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2024-08-20 08:17:01 +00:00

51 lines
1.8 KiB
Go

// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package trace // import "go.opentelemetry.io/otel/trace"
import "context"
type traceContextKeyType int
const currentSpanKey traceContextKeyType = iota
// ContextWithSpan returns a copy of parent with span set as the current Span.
func ContextWithSpan(parent context.Context, span Span) context.Context {
return context.WithValue(parent, currentSpanKey, span)
}
// ContextWithSpanContext returns a copy of parent with sc as the current
// Span. The Span implementation that wraps sc is non-recording and performs
// no operations other than to return sc as the SpanContext from the
// SpanContext method.
func ContextWithSpanContext(parent context.Context, sc SpanContext) context.Context {
return ContextWithSpan(parent, nonRecordingSpan{sc: sc})
}
// ContextWithRemoteSpanContext returns a copy of parent with rsc set explicly
// as a remote SpanContext and as the current Span. The Span implementation
// that wraps rsc is non-recording and performs no operations other than to
// return rsc as the SpanContext from the SpanContext method.
func ContextWithRemoteSpanContext(parent context.Context, rsc SpanContext) context.Context {
return ContextWithSpanContext(parent, rsc.WithRemote(true))
}
// SpanFromContext returns the current Span from ctx.
//
// If no Span is currently set in ctx an implementation of a Span that
// performs no operations is returned.
func SpanFromContext(ctx context.Context) Span {
if ctx == nil {
return noopSpanInstance
}
if span, ok := ctx.Value(currentSpanKey).(Span); ok {
return span
}
return noopSpanInstance
}
// SpanContextFromContext returns the current Span's SpanContext.
func SpanContextFromContext(ctx context.Context) SpanContext {
return SpanFromContext(ctx).SpanContext()
}