Make string format optional if no trace listener is attached

2026-10-17 17:53:03 +08:00 · 2017-09-09 21:50:55 +02:00
parent 960900dafa
commit 0907eadb55
1 changed files with 8 additions and 1 deletions
@@ -38,7 +38,14 @@ namespace MQTTnet.Core.Diagnostics

        private static void Publish(string source, MqttTraceLevel traceLevel, Exception exception, string message)
        {
-            TraceMessagePublished?.Invoke(null, new MqttTraceMessagePublishedEventArgs(Environment.CurrentManagedThreadId, source, traceLevel, message, exception));
+            var handler = TraceMessagePublished;
+            if (handler == null)
+            {
+                return;
+            }
+
+            message = string.Format(message, 1);
+            handler.Invoke(null, new MqttTraceMessagePublishedEventArgs(Environment.CurrentManagedThreadId, source, traceLevel, message, exception));
        }
    }
 }