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Performance impact fix (#1661)

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This commit is contained in:
Int32Overflow
2023-01-28 12:12:20 +01:00
committed by GitHub
parent c90ba7e061
commit 0234918f30
1 changed files with 12 additions and 12 deletions
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Source/MQTTnet/Server/Internal/MqttClientSubscriptionsManager.cs
+12 -12
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@@ -403,6 +403,18 @@ namespace MQTTnet.Server
CreateSubscriptionResult createSubscriptionResult,
SubscribeResult subscribeResult)
{
if (createSubscriptionResult.Subscription.RetainHandling == MqttRetainHandling.DoNotSendOnSubscribe)
{
// This is a MQTT V5+ feature.
return;
}
if (createSubscriptionResult.Subscription.RetainHandling == MqttRetainHandling.SendAtSubscribeIfNewSubscriptionOnly && !createSubscriptionResult.IsNewSubscription)
{
// This is a MQTT V5+ feature.
return;
}
for (var index = retainedMessages.Count - 1; index >= 0; index--)
{
var retainedMessage = retainedMessages[index];
@@ -411,18 +423,6 @@ namespace MQTTnet.Server
continue;
}
if (createSubscriptionResult.Subscription.RetainHandling == MqttRetainHandling.DoNotSendOnSubscribe)
{
// This is a MQTT V5+ feature.
continue;
}
if (createSubscriptionResult.Subscription.RetainHandling == MqttRetainHandling.SendAtSubscribeIfNewSubscriptionOnly && !createSubscriptionResult.IsNewSubscription)
{
// This is a MQTT V5+ feature.
continue;
}
if (MqttTopicFilterComparer.Compare(retainedMessage.Topic, createSubscriptionResult.Subscription.Topic) != MqttTopicFilterCompareResult.IsMatch)
{
continue;