public async Task PublishAsync(ManagedMqttApplicationMessage applicationMessage)
{
if (applicationMessage == null)
{
throw new ArgumentNullException(nameof(applicationMessage));
}
if (_storageManager != null)
{
await _storageManager.AddAsync(applicationMessage).ConfigureAwait(false);
}
_messageQueue.Add(applicationMessage);
}
public async Task PublishAsync(ManagedMqttApplicationMessage applicationMessage)
{
if (applicationMessage == null)
{
throw new ArgumentNullException(nameof(applicationMessage));
}
ManagedMqttApplicationMessage removedMessage = null;
lock (_messageQueue)
{
if (_messageQueue.Count >= Options.MaxPendingMessages)
{
if (Options.PendingMessagesOverflowStrategy == MqttPendingMessagesOverflowStrategy.DropNewMessage)
{
_logger.Verbose("Skipping publish of new application message because internal queue is full.");
ApplicationMessageSkipped?.Invoke(this, new ApplicationMessageSkippedEventArgs(applicationMessage));
return;
}
if (Options.PendingMessagesOverflowStrategy == MqttPendingMessagesOverflowStrategy.DropOldestQueuedMessage)
{
removedMessage = _messageQueue.RemoveFirst();
_logger.Verbose("Removed oldest application message from internal queue because it is full.");
ApplicationMessageSkipped?.Invoke(this, new ApplicationMessageSkippedEventArgs(removedMessage));
}
}
_messageQueue.Enqueue(applicationMessage);
}
if (_storageManager != null)
{
if (removedMessage != null)
{
await _storageManager.RemoveAsync(removedMessage).ConfigureAwait(false);
}
await _storageManager.AddAsync(applicationMessage).ConfigureAwait(false);
}
}