diff options
Diffstat (limited to 'vendor/github.com/opentracing/opentracing-go/gocontext.go')
| -rw-r--r-- | vendor/github.com/opentracing/opentracing-go/gocontext.go | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/vendor/github.com/opentracing/opentracing-go/gocontext.go b/vendor/github.com/opentracing/opentracing-go/gocontext.go index 05a62e70b..08c00c04e 100644 --- a/vendor/github.com/opentracing/opentracing-go/gocontext.go +++ b/vendor/github.com/opentracing/opentracing-go/gocontext.go @@ -41,11 +41,17 @@ func SpanFromContext(ctx context.Context) Span { // ... // } func StartSpanFromContext(ctx context.Context, operationName string, opts ...StartSpanOption) (Span, context.Context) { - return startSpanFromContextWithTracer(ctx, GlobalTracer(), operationName, opts...) + return StartSpanFromContextWithTracer(ctx, GlobalTracer(), operationName, opts...) } -// startSpanFromContextWithTracer is factored out for testing purposes. -func startSpanFromContextWithTracer(ctx context.Context, tracer Tracer, operationName string, opts ...StartSpanOption) (Span, context.Context) { +// StartSpanFromContextWithTracer starts and returns a span with `operationName` +// using a span found within the context as a ChildOfRef. If that doesn't exist +// it creates a root span. It also returns a context.Context object built +// around the returned span. +// +// It's behavior is identical to StartSpanFromContext except that it takes an explicit +// tracer as opposed to using the global tracer. +func StartSpanFromContextWithTracer(ctx context.Context, tracer Tracer, operationName string, opts ...StartSpanOption) (Span, context.Context) { if parentSpan := SpanFromContext(ctx); parentSpan != nil { opts = append(opts, ChildOf(parentSpan.Context())) } |