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Add extension for RPC calls; replace locks; Refactored storage in Managed Client

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This commit is contained in:
Christian Kratky
2017-12-04 10:21:37 +01:00
parent 0ee3c8e135
commit d12d2648b7
31 changed files with 690 additions and 307 deletions
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Frameworks/MQTTnet.NetStandard/ManagedClient/ManagedMqttClient.cs
+37 -20
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@@ -13,9 +13,9 @@ namespace MQTTnet.ManagedClient
{
public class ManagedMqttClient : IManagedMqttClient
{
private readonly ManagedMqttClientStorageManager _storageManager = new ManagedMqttClientStorageManager();
private readonly BlockingCollection<MqttApplicationMessage> _messageQueue = new BlockingCollection<MqttApplicationMessage>();
private readonly HashSet<TopicFilter> _subscriptions = new HashSet<TopicFilter>();
private readonly SemaphoreSlim _subscriptionsSemaphore = new SemaphoreSlim(1, 1);
private readonly IMqttClient _mqttClient;
private readonly IMqttNetLogger _logger;
@@ -23,7 +23,9 @@ namespace MQTTnet.ManagedClient
private CancellationTokenSource _connectionCancellationToken;
private CancellationTokenSource _publishingCancellationToken;
private ManagedMqttClientStorageManager _storageManager;
private IManagedMqttClientOptions _options;
private bool _subscriptionsNotPushed;
public ManagedMqttClient(IMqttClient mqttClient, IMqttNetLogger logger)
@@ -55,15 +57,11 @@ namespace MQTTnet.ManagedClient
if (_connectionCancellationToken != null) throw new InvalidOperationException("The managed client is already started.");
_options = options;
await _storageManager.SetStorageAsync(_options.Storage).ConfigureAwait(false);
if (_options.Storage != null)
{
var loadedMessages = await _options.Storage.LoadQueuedMessagesAsync().ConfigureAwait(false);
foreach (var loadedMessage in loadedMessages)
{
_messageQueue.Add(loadedMessage);
}
_storageManager = new ManagedMqttClientStorageManager(_options.Storage);
await _storageManager.LoadQueuedMessagesAsync().ConfigureAwait(false);
}
_connectionCancellationToken = new CancellationTokenSource();
@@ -97,16 +95,21 @@ namespace MQTTnet.ManagedClient
foreach (var applicationMessage in applicationMessages)
{
await _storageManager.AddAsync(applicationMessage).ConfigureAwait(false);
if (_storageManager != null)
{
await _storageManager.AddAsync(applicationMessage).ConfigureAwait(false);
}
_messageQueue.Add(applicationMessage);
}
}
public Task SubscribeAsync(IEnumerable<TopicFilter> topicFilters)
public async Task SubscribeAsync(IEnumerable<TopicFilter> topicFilters)
{
if (topicFilters == null) throw new ArgumentNullException(nameof(topicFilters));
lock (_subscriptions)
await _subscriptionsSemaphore.WaitAsync().ConfigureAwait(false);
try
{
foreach (var topicFilter in topicFilters)
{
@@ -116,13 +119,16 @@ namespace MQTTnet.ManagedClient
}
}
}
return Task.FromResult(0);
finally
{
_subscriptionsSemaphore.Release();
}
}
public Task UnsubscribeAsync(IEnumerable<TopicFilter> topicFilters)
public async Task UnsubscribeAsync(IEnumerable<TopicFilter> topicFilters)
{
lock (_subscriptions)
await _subscriptionsSemaphore.WaitAsync().ConfigureAwait(false);
try
{
foreach (var topicFilter in topicFilters)
{
@@ -132,8 +138,10 @@ namespace MQTTnet.ManagedClient
}
}
}
return Task.FromResult(0);
finally
{
_subscriptionsSemaphore.Release();
}
}
private async Task MaintainConnectionAsync(CancellationToken cancellationToken)
@@ -242,7 +250,11 @@ namespace MQTTnet.ManagedClient
try
{
await _mqttClient.PublishAsync(message).ConfigureAwait(false);
await _storageManager.RemoveAsync(message).ConfigureAwait(false);
if (_storageManager != null)
{
await _storageManager.RemoveAsync(message).ConfigureAwait(false);
}
}
catch (MqttCommunicationException exception)
{
@@ -264,13 +276,18 @@ namespace MQTTnet.ManagedClient
_logger.Info<ManagedMqttClient>(nameof(ManagedMqttClient), "Synchronizing subscriptions");
List<TopicFilter> subscriptions;
lock (_subscriptions)
await _subscriptionsSemaphore.WaitAsync().ConfigureAwait(false);
try
{
subscriptions = _subscriptions.ToList();
_subscriptionsNotPushed = false;
}
finally
{
_subscriptionsSemaphore.Release();
}
if (!_subscriptions.Any())
if (!subscriptions.Any())
{
return;
}