private async Task ProcessReceivedMessage(object message)
{
if (message is Ack ack)
{
if (_pendingMessageId != ack.MessageId)
{
throw new InvalidOperationException("We screwed up.");
}
await _pendingMessage.Complete();
_pendingMessage = null;
}
else if (message is Nak nak)
{
if (_pendingMessageId != nak.MessageId)
{
throw new InvalidOperationException("We screwed up.");
}
await _pendingMessage.Abort();
_pendingMessage = null;
}
}
private async Task DeliverQueuedMessages()
{
while (true)
{
try
{
await _tcpClient.EnsureConnected();
}
catch (SocketException)
{
await Task.Delay(5000);
continue;
}
_pendingMessage = await _fileQueue.Dequeue(TimeSpan.FromSeconds(10));
if (_pendingMessage == null)
{
continue;
}
try
{
var transportMessage = new TransportMessage(_pendingMessage.Message);
_pendingMessageId = transportMessage.Id;
await _tcpClient.SendAsync(transportMessage);
await Task.Delay(600000);
}
catch
{
await _pendingMessage.Abort();
_pendingMessage = null;
throw;
}
}
}