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Additional performance improvements

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This commit is contained in:
Christian Kratky
2017-09-09 23:53:42 +02:00
parent 4a6790f0aa
commit 76151deba0
18 changed files with 100 additions and 103 deletions
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MQTTnet.Core/Adapter/MqttChannelCommunicationAdapter.cs
+4 -4
View File
@@ -43,11 +43,11 @@ namespace MQTTnet.Core.Adapter
MqttBasePacket packet;
if (timeout > TimeSpan.Zero)
{
packet = await ExecuteWithTimeoutAsync(PacketSerializer.DeserializeAsync(_channel), timeout);
packet = await ExecuteWithTimeoutAsync(PacketSerializer.DeserializeAsync(_channel), timeout).ConfigureAwait(false);
}
else
{
packet = await PacketSerializer.DeserializeAsync(_channel);
packet = await PacketSerializer.DeserializeAsync(_channel).ConfigureAwait(false);
}
if (packet == null)
@@ -62,7 +62,7 @@ namespace MQTTnet.Core.Adapter
private static async Task<TResult> ExecuteWithTimeoutAsync<TResult>(Task<TResult> task, TimeSpan timeout)
{
var timeoutTask = Task.Delay(timeout);
if (await Task.WhenAny(timeoutTask, task) == timeoutTask)
if (await Task.WhenAny(timeoutTask, task).ConfigureAwait(false) == timeoutTask)
{
throw new MqttCommunicationTimedOutException();
}
@@ -78,7 +78,7 @@ namespace MQTTnet.Core.Adapter
private static async Task ExecuteWithTimeoutAsync(Task task, TimeSpan timeout)
{
var timeoutTask = Task.Delay(timeout);
if (await Task.WhenAny(timeoutTask, task) == timeoutTask)
if (await Task.WhenAny(timeoutTask, task).ConfigureAwait(false) == timeoutTask)
{
throw new MqttCommunicationTimedOutException();
}
MQTTnet.Core/Client/MqttClient.cs
+21 -20
View File
@@ -53,7 +53,7 @@ namespace MQTTnet.Core.Client
{
_disconnectedEventSuspended = false;
await _adapter.ConnectAsync(_options, _options.DefaultCommunicationTimeout);
await _adapter.ConnectAsync(_options, _options.DefaultCommunicationTimeout).ConfigureAwait(false);
MqttTrace.Verbose(nameof(MqttClient), "Connection with server established.");
@@ -73,10 +73,10 @@ namespace MQTTnet.Core.Client
StartReceivePackets();
var response = await SendAndReceiveAsync<MqttConnAckPacket>(connectPacket);
var response = await SendAndReceiveAsync<MqttConnAckPacket>(connectPacket).ConfigureAwait(false);
if (response.ConnectReturnCode != MqttConnectReturnCode.ConnectionAccepted)
{
await DisconnectInternalAsync();
await DisconnectInternalAsync().ConfigureAwait(false);
throw new MqttConnectingFailedException(response.ConnectReturnCode);
}
@@ -92,7 +92,7 @@ namespace MQTTnet.Core.Client
}
catch (Exception)
{
await DisconnectInternalAsync();
await DisconnectInternalAsync().ConfigureAwait(false);
throw;
}
}
@@ -101,11 +101,11 @@ namespace MQTTnet.Core.Client
{
try
{
await SendAsync(new MqttDisconnectPacket());
await SendAsync(new MqttDisconnectPacket()).ConfigureAwait(false);
}
finally
{
await DisconnectInternalAsync();
await DisconnectInternalAsync().ConfigureAwait(false);
}
}
@@ -129,7 +129,7 @@ namespace MQTTnet.Core.Client
TopicFilters = topicFilters
};
var response = await SendAndReceiveAsync<MqttSubAckPacket>(subscribePacket);
var response = await SendAndReceiveAsync<MqttSubAckPacket>(subscribePacket).ConfigureAwait(false);
if (response.SubscribeReturnCodes.Count != topicFilters.Count)
{
@@ -191,8 +191,8 @@ namespace MQTTnet.Core.Client
private async Task PublishExactlyOncePacketAsync(MqttBasePacket publishPacket)
{
var pubRecPacket = await SendAndReceiveAsync<MqttPubRecPacket>(publishPacket);
await SendAndReceiveAsync<MqttPubCompPacket>(pubRecPacket.CreateResponse<MqttPubRelPacket>());
var pubRecPacket = await SendAndReceiveAsync<MqttPubRecPacket>(publishPacket).ConfigureAwait(false);
await SendAndReceiveAsync<MqttPubCompPacket>(pubRecPacket.CreateResponse<MqttPubRelPacket>()).ConfigureAwait(false);
}
private void ThrowIfNotConnected()
@@ -200,15 +200,16 @@ namespace MQTTnet.Core.Client
if (!IsConnected) throw new MqttCommunicationException("The client is not connected.");
}
private async Task DisconnectInternalAsync()
private Task DisconnectInternalAsync()
{
try
{
await _adapter.DisconnectAsync();
return _adapter.DisconnectAsync();
}
catch (Exception exception)
{
MqttTrace.Warning(nameof(MqttClient), exception, "Error while disconnecting.");
return Task.FromResult(0);
}
finally
{
@@ -335,8 +336,8 @@ namespace MQTTnet.Core.Client
return pi1.PacketIdentifier == pi2.PacketIdentifier;
}
await _adapter.SendPacketAsync(requestPacket, _options.DefaultCommunicationTimeout);
return (TResponsePacket)await _packetDispatcher.WaitForPacketAsync(ResponsePacketSelector, _options.DefaultCommunicationTimeout);
await _adapter.SendPacketAsync(requestPacket, _options.DefaultCommunicationTimeout).ConfigureAwait(false);
return (TResponsePacket)await _packetDispatcher.WaitForPacketAsync(ResponsePacketSelector, _options.DefaultCommunicationTimeout).ConfigureAwait(false);
}
private ushort GetNewPacketIdentifier()
@@ -352,19 +353,19 @@ namespace MQTTnet.Core.Client
{
while (!cancellationToken.IsCancellationRequested)
{
await Task.Delay(_options.KeepAlivePeriod, cancellationToken);
await SendAndReceiveAsync<MqttPingRespPacket>(new MqttPingReqPacket());
await Task.Delay(_options.KeepAlivePeriod, cancellationToken).ConfigureAwait(false);
await SendAndReceiveAsync<MqttPingRespPacket>(new MqttPingReqPacket()).ConfigureAwait(false);
}
}
catch (MqttCommunicationException exception)
{
MqttTrace.Warning(nameof(MqttClient), exception, "MQTT communication error while receiving packets.");
await DisconnectInternalAsync();
await DisconnectInternalAsync().ConfigureAwait(false);
}
catch (Exception exception)
{
MqttTrace.Warning(nameof(MqttClient), exception, "Error while sending/receiving keep alive packets.");
await DisconnectInternalAsync();
await DisconnectInternalAsync().ConfigureAwait(false);
}
finally
{
@@ -379,7 +380,7 @@ namespace MQTTnet.Core.Client
{
while (!cancellationToken.IsCancellationRequested)
{
var packet = await _adapter.ReceivePacketAsync(TimeSpan.Zero);
var packet = await _adapter.ReceivePacketAsync(TimeSpan.Zero).ConfigureAwait(false);
MqttTrace.Information(nameof(MqttClient), "Received <<< {0}", packet);
StartProcessReceivedPacket(packet, cancellationToken);
@@ -388,12 +389,12 @@ namespace MQTTnet.Core.Client
catch (MqttCommunicationException exception)
{
MqttTrace.Warning(nameof(MqttClient), exception, "MQTT communication exception while receiving packets.");
await DisconnectInternalAsync();
await DisconnectInternalAsync().ConfigureAwait(false);
}
catch (Exception exception)
{
MqttTrace.Error(nameof(MqttClient), exception, "Unhandled exception while receiving packets.");
await DisconnectInternalAsync();
await DisconnectInternalAsync().ConfigureAwait(false);
}
finally
{
MQTTnet.Core/Client/MqttPacketDispatcher.cs
+1 -1
View File
@@ -20,7 +20,7 @@ namespace MQTTnet.Core.Client
var packetAwaiter = AddPacketAwaiter(selector);
DispatchPendingPackets();
var hasTimeout = await Task.WhenAny(Task.Delay(timeout), packetAwaiter.Task) != packetAwaiter.Task;
var hasTimeout = await Task.WhenAny(Task.Delay(timeout), packetAwaiter.Task).ConfigureAwait(false) != packetAwaiter.Task;
RemovePacketAwaiter(packetAwaiter);
if (hasTimeout)
MQTTnet.Core/Serializer/MqttPacketReader.cs
+6 -6
View File
@@ -28,8 +28,8 @@ namespace MQTTnet.Core.Serializer
public async Task ReadToEndAsync()
{
await ReadFixedHeaderAsync();
await ReadRemainingLengthAsync();
await ReadFixedHeaderAsync().ConfigureAwait(false);
await ReadRemainingLengthAsync().ConfigureAwait(false);
if (_remainingLength == 0)
{
@@ -37,7 +37,7 @@ namespace MQTTnet.Core.Serializer
}
var buffer = new byte[_remainingLength];
await ReadFromSourceAsync(buffer);
await ReadFromSourceAsync(buffer).ConfigureAwait(false);
_remainingData.Write(buffer, 0, buffer.Length);
_remainingData.Position = 0;
@@ -91,7 +91,7 @@ namespace MQTTnet.Core.Serializer
byte encodedByte;
do
{
encodedByte = await ReadStreamByteAsync();
encodedByte = await ReadStreamByteAsync().ConfigureAwait(false);
value += (encodedByte & 127) * multiplier;
multiplier *= 128;
if (multiplier > 128 * 128 * 128)
@@ -118,13 +118,13 @@ namespace MQTTnet.Core.Serializer
private async Task<byte> ReadStreamByteAsync()
{
var buffer = new byte[1];
await ReadFromSourceAsync(buffer);
await ReadFromSourceAsync(buffer).ConfigureAwait(false);
return buffer[0];
}
private async Task ReadFixedHeaderAsync()
{
FixedHeader = await ReadStreamByteAsync();
FixedHeader = await ReadStreamByteAsync().ConfigureAwait(false);
var byteReader = new ByteReader(FixedHeader);
byteReader.Read(4);
MQTTnet.Core/Serializer/MqttPacketSerializer.cs
+1 -1
View File
@@ -457,7 +457,7 @@ namespace MQTTnet.Core.Serializer
output.Write(packet.PacketIdentifier);
output.InjectFixedHeader(MqttControlPacketType.PubRel, 0x02);
await output.WriteToAsync(destination);
await output.WriteToAsync(destination).ConfigureAwait(false);
}
}
MQTTnet.Core/Server/MqttClientMessageQueue.cs
+3 -3
View File
@@ -62,7 +62,7 @@ namespace MQTTnet.Core.Server
{
try
{
await _gate.WaitOneAsync();
await _gate.WaitOneAsync().ConfigureAwait(false);
if (cancellationToken.IsCancellationRequested)
{
return;
@@ -81,7 +81,7 @@ namespace MQTTnet.Core.Server
foreach (var publishPacket in pendingPublishPackets)
{
await TrySendPendingPublishPacketAsync(publishPacket);
await TrySendPendingPublishPacketAsync(publishPacket).ConfigureAwait(false);
}
}
catch (Exception e)
@@ -105,7 +105,7 @@ namespace MQTTnet.Core.Server
}
publishPacketContext.PublishPacket.Dup = publishPacketContext.SendTries > 0;
await _adapter.SendPacketAsync(publishPacketContext.PublishPacket, _options.DefaultCommunicationTimeout);
await _adapter.SendPacketAsync(publishPacketContext.PublishPacket, _options.DefaultCommunicationTimeout).ConfigureAwait(false);
publishPacketContext.IsSent = true;
}
MQTTnet.Core/Server/MqttClientSession.cs
+2 -2
View File
@@ -54,8 +54,8 @@ namespace MQTTnet.Core.Server
_messageQueue.Start(adapter);
while (!_cancellationTokenSource.IsCancellationRequested)
{
var packet = await adapter.ReceivePacketAsync(TimeSpan.Zero);
await HandleIncomingPacketAsync(packet);
var packet = await adapter.ReceivePacketAsync(TimeSpan.Zero).ConfigureAwait(false);
await HandleIncomingPacketAsync(packet).ConfigureAwait(false);
}
}
catch (MqttCommunicationException)
MQTTnet.Core/Server/MqttClientSessionsManager.cs
+5 -5
View File
@@ -28,7 +28,7 @@ namespace MQTTnet.Core.Server
{
try
{
var connectPacket = await eventArgs.ClientAdapter.ReceivePacketAsync(_options.DefaultCommunicationTimeout) as MqttConnectPacket;
var connectPacket = await eventArgs.ClientAdapter.ReceivePacketAsync(_options.DefaultCommunicationTimeout).ConfigureAwait(false) as MqttConnectPacket;
if (connectPacket == null)
{
throw new MqttProtocolViolationException("The first packet from a client must be a 'CONNECT' packet [MQTT-3.1.0-1].");
@@ -43,7 +43,7 @@ namespace MQTTnet.Core.Server
await eventArgs.ClientAdapter.SendPacketAsync(new MqttConnAckPacket
{
ConnectReturnCode = connectReturnCode
}, _options.DefaultCommunicationTimeout);
}, _options.DefaultCommunicationTimeout).ConfigureAwait(false);
return;
}
@@ -54,9 +54,9 @@ namespace MQTTnet.Core.Server
{
ConnectReturnCode = connectReturnCode,
IsSessionPresent = clientSession.IsExistingSession
}, _options.DefaultCommunicationTimeout);
}, _options.DefaultCommunicationTimeout).ConfigureAwait(false);
await clientSession.Session.RunAsync(eventArgs.Identifier, connectPacket.WillMessage, eventArgs.ClientAdapter);
await clientSession.Session.RunAsync(eventArgs.Identifier, connectPacket.WillMessage, eventArgs.ClientAdapter).ConfigureAwait(false);
}
catch (Exception exception)
{
@@ -64,7 +64,7 @@ namespace MQTTnet.Core.Server
}
finally
{
await eventArgs.ClientAdapter.DisconnectAsync();
await eventArgs.ClientAdapter.DisconnectAsync().ConfigureAwait(false);
}
}