@@ -188,10 +188,18 @@
 
 + (OFThread *)mainThread
 {
 	return mainThread;
 }
+
++ (bool)isMainThread
+{
+	if (mainThread == nil)
+		return false;
+
+	return (of_tlskey_get(threadSelfKey) == mainThread);
+}
 
 + (OFMutableDictionary *)threadDictionary
 {
 	OFThread *thread = of_tlskey_get(threadSelfKey);