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Fix ManagedMqttClient missing call to unsubscribe topics

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Lassi Laati
2018-02-20 09:23:47 +02:00
parent b426ae1198
commit 2341d66192
1 changed files with 12 additions and 0 deletions
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Frameworks/MQTTnet.NetStandard/ManagedClient/ManagedMqttClient.cs
+12
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@@ -16,6 +16,7 @@ namespace MQTTnet.ManagedClient
private readonly BlockingCollection<MqttApplicationMessage> _messageQueue = new BlockingCollection<MqttApplicationMessage>();
private readonly Dictionary<string, MqttQualityOfServiceLevel> _subscriptions = new Dictionary<string, MqttQualityOfServiceLevel>();
private readonly SemaphoreSlim _subscriptionsSemaphore = new SemaphoreSlim(1, 1);
private readonly List<string> _unsubscriptions = new List<string>();
private readonly IMqttClient _mqttClient;
private readonly IMqttNetLogger _logger;
@@ -129,6 +130,7 @@ namespace MQTTnet.ManagedClient
{
if (_subscriptions.Remove(topic))
{
_unsubscriptions.Add(topic);
_subscriptionsNotPushed = true;
}
}
@@ -274,16 +276,26 @@ namespace MQTTnet.ManagedClient
_logger.Info<ManagedMqttClient>(nameof(ManagedMqttClient), "Synchronizing subscriptions");
List<TopicFilter> subscriptions;
List<string> unsubscriptions;
await _subscriptionsSemaphore.WaitAsync().ConfigureAwait(false);
try
{
subscriptions = _subscriptions.Select(i => new TopicFilter(i.Key, i.Value)).ToList();
unsubscriptions = new List<string>(_unsubscriptions);
_unsubscriptions.Clear();
_subscriptionsNotPushed = false;
}
finally
{
_subscriptionsSemaphore.Release();
}
if (unsubscriptions.Any())
{
await _mqttClient.UnsubscribeAsync(unsubscriptions);
}
if (!subscriptions.Any())
{