first version

contextutil/contextutil.go

@@ -0,0 +1,16 @@
+package contextutil
+
+import "context"
+
+func WithThreadName(ctx context.Context, threadName string) context.Context {
+	return context.WithValue(ctx, "context_thread", threadName)
+}
+
+func ThreadName(ctx context.Context) string {
+	value := ctx.Value("context_thread")
+	if value, ok := value.(string); ok {
+		return value
+	}
+
+	return "unknown"
+}