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Expose PING method for clients.

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This commit is contained in:
Christian Kratky
2020-04-18 01:38:48 +02:00
parent 4b78710705
commit c2ac4fffaf
7 changed files with 59 additions and 34 deletions
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Source/MQTTnet/Client/MqttClient.cs
+19 -7
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@@ -40,7 +40,8 @@ namespace MQTTnet.Client
IMqttChannelAdapter _adapter;
bool _cleanDisconnectInitiated;
long _disconnectGate;
long _isDisconnectPending;
bool _isConnected;
public MqttClient(IMqttClientAdapterFactory channelFactory, IMqttNetLogger logger)
{
@@ -56,7 +57,13 @@ namespace MQTTnet.Client
public IMqttApplicationMessageReceivedHandler ApplicationMessageReceivedHandler { get; set; }
public bool IsConnected { get; private set; }
public bool IsConnected
{
get
{
return _isConnected || Interlocked.Read(ref _isDisconnectPending) != 0;
}
}
public IMqttClientOptions Options { get; private set; }
@@ -81,7 +88,7 @@ namespace MQTTnet.Client
_backgroundCancellationTokenSource = new CancellationTokenSource();
var backgroundCancellationToken = _backgroundCancellationTokenSource.Token;
_disconnectGate = 0;
_isDisconnectPending = 0;
var adapter = _adapterFactory.CreateClientAdapter(options, _logger);
_adapter = adapter;
@@ -107,7 +114,7 @@ namespace MQTTnet.Client
_keepAlivePacketsSenderTask = Task.Run(() => TrySendKeepAliveMessagesAsync(backgroundCancellationToken), backgroundCancellationToken);
}
IsConnected = true;
_isConnected = true;
_logger.Info("Connected.");
@@ -157,6 +164,11 @@ namespace MQTTnet.Client
}
}
public async Task PingAsync(CancellationToken cancellationToken)
{
await SendAndReceiveAsync<MqttPingRespPacket>(new MqttPingReqPacket(), cancellationToken).ConfigureAwait(false);
}
public Task SendExtendedAuthenticationExchangeDataAsync(MqttExtendedAuthenticationExchangeData data, CancellationToken cancellationToken)
{
if (data == null) throw new ArgumentNullException(nameof(data));
@@ -283,7 +295,7 @@ namespace MQTTnet.Client
void ThrowIfNotConnected()
{
if (!IsConnected || Interlocked.Read(ref _disconnectGate) == 1) throw new MqttCommunicationException("The client is not connected.");
if (!IsConnected || Interlocked.Read(ref _isDisconnectPending) == 1) throw new MqttCommunicationException("The client is not connected.");
}
void ThrowIfConnected(string message)
@@ -296,7 +308,7 @@ namespace MQTTnet.Client
var clientWasConnected = IsConnected;
TryInitiateDisconnect();
IsConnected = false;
_isConnected = false;
try
{
@@ -749,7 +761,7 @@ namespace MQTTnet.Client
bool DisconnectIsPending()
{
return Interlocked.CompareExchange(ref _disconnectGate, 1, 0) != 0;
return Interlocked.CompareExchange(ref _isDisconnectPending, 1, 0) != 0;
}
}
}