fix: fix subscription implementation for CoAP

eclipse-thingweb · May 30, 2022 · 58f80c4 · 58f80c4
1 parent a381f7d
commit 58f80c4
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/lib/src/binding_coap/coap_client.dart b/lib/src/binding_coap/coap_client.dart
@@ -582,12 +582,16 @@ class _CoapSubscription implements Subscription {
 
   @override
   Future<void> stop([InteractionOptions? options]) async {
+    if (!_active) {
+      return;
+    }
+    _active = false;
+
     final observeClientRelation = _observeClientRelation;
     if (observeClientRelation != null) {
       await _coapClient.cancelObserveProactive(observeClientRelation);
     }
     _coapClient.close();
-    _active = false;
     _complete();
   }
 }