private async Task PropagateResponses()
{
await Task.Yield();
try
{
while (true)
{
ResponseQueueEntry nextResponse;
try
{
nextResponse = await _responseChan.ReadAsync();
}
catch (ChannelClosedException)
{
break;
}
await _messageWriter.Write(nextResponse.Header);
if (nextResponse.Body != null)
{
await _messageWriter.Write(nextResponse.Body);
}
_requestLogger.Log(nextResponse.Header, nextResponse.Body, true);
_counters.PendingResponsePropagation.Decrement();
if ((nextResponse.Header.Flags & ResponseFlags.HostStatus) == ResponseFlags.HostStatus)
{
var hostStatus = new HostStatusMessage {
PendingProcessing = _counters.PendingProcessing.Count,
InProcessing = _counters.InProcessing.Count,
PendingResponsePropagation = _counters.PendingResponsePropagation.Count
};
await _messageWriter.Write(hostStatus);
_requestLogger.Log(hostStatus, true);
}
}
await _messageWriter.Write(new ResponseHeader {
Priority = MessagePriority.Highest,
Flags = ResponseFlags.Termination
});
}
catch (Exception ex)
{
_logger.Error(ex, "Response propagator faulted");
}
}
public void Log(HostStatusMessage hostStatus, bool isSending) =>
_logger.Trace(() => $"Host status {hostStatus.PendingProcessing}/{hostStatus.InProcessing}/{hostStatus.PendingResponsePropagation} {GetAction(isSending)} {_endPointName}");
