public async Task StartAsync(IManagedMqttClientOptions options)
{
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
if (options.ClientOptions == null)
{
throw new ArgumentException("The client options are not set.", nameof(options));
}
if (!options.ClientOptions.CleanSession)
{
throw new NotSupportedException("The managed client does not support existing sessions.");
}
if (_connectionCancellationToken != null)
{
throw new InvalidOperationException("The managed client is already started.");
}
_options = options;
if (_options.Storage != null)
{
_storageManager = new ManagedMqttClientStorageManager(_options.Storage);
await _storageManager.LoadQueuedMessagesAsync().ConfigureAwait(false);
}
_connectionCancellationToken = new CancellationTokenSource();
#pragma warning disable CS4014 // Because this call is not awaited, execution of the current method continues before the call is completed
Task.Run(async() => await MaintainConnectionAsync(_connectionCancellationToken.Token).ConfigureAwait(false), _connectionCancellationToken.Token).ConfigureAwait(false);
#pragma warning restore CS4014 // Because this call is not awaited, execution of the current method continues before the call is completed
_logger.Info <ManagedMqttClient>("Started");
}