fix: data race issue occurring when multiple goroutines concurrently write to the same span

japananh · japananh · commit 852242bb457f · 2025-06-11T15:21:20.000+07:00
diff --git a/tracing.go b/tracing.go
@@ -594,6 +594,8 @@ func (s *Span) toEvent() *Event {
 }
 
 func (s *Span) traceContext() *TraceContext {
+	s.mu.Lock()
+	defer s.mu.Unlock()
 	return &TraceContext{
 		TraceID:      s.TraceID,
 		SpanID:       s.SpanID,

Original file line number	Diff line number	Diff line change
`@@ -594,6 +594,8 @@ func (s Span) toEvent() Event {`
`594`	`594`	`}`
`595`	`595`
`596`	`596`	`func (s Span) traceContext() TraceContext {`
	`597`	`+ s.mu.Lock()`
	`598`	`+ defer s.mu.Unlock()`
`597`	`599`	`return &TraceContext{`
`598`	`600`	`TraceID: s.TraceID,`
`599`	`601`	`SpanID: s.SpanID,`