async void Send()

in snipinsights/windows/SnipInsight/Util/LogUploader.cs [113:187]
70 lines of code
11 McCabe index (conditional complexity)

        async void Send(DateTime sendTime)
        {
            try
            {
                if (!System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable())
                {
                    // Queue for retry
                    Queue(DateTime.UtcNow + TimeSpan.FromMilliseconds(_uploadPeriod));
                    if (_failureCallback != null)
                    {
                        _failureCallback();
                    }
                    return;
                }

                DateTime contentTime = DateTime.MinValue;
                string uploadContent = _retrieveContent(ref contentTime);
                if (!string.IsNullOrEmpty(uploadContent))
                {
                    uploadContent = Compress(uploadContent);
                    using (StringContent payload = new StringContent(uploadContent))
                    {
                        using (HttpClient client = new HttpClient())
                        {
                            // Build the POST request
                            HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, _url);
                            request.Headers.Add("X-MS-SnipInsight", "WqCK64ev30QAPKSoLUIEig4s9QJoJqYwzGDMXOrmS7CU3iHrHqZhosksf34QAu==");
                            request.Content = payload;
                            request.Content.Headers.ContentEncoding.Add("gzip");
                            HttpResponseMessage response = await client.SendAsync(request);
                            if (response.IsSuccessStatusCode)
                            {
                                lock (_lock)
                                {
                                    _lastSent = sendTime > contentTime ? sendTime : contentTime;
                                    if (_successCallback != null)
                                    {
                                        _successCallback();
                                    }
                                }
                            }
                            else
                            {
                                // Queue for retry
                                Queue(DateTime.UtcNow + TimeSpan.FromMilliseconds(_uploadPeriod));
                                if (_failureCallback != null)
                                {
                                    _failureCallback();
                                }
                            }
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                if (ex is HttpRequestException)
                {
                    // SendAsync may have thrown, queue for retry
                    Queue(DateTime.UtcNow + TimeSpan.FromMilliseconds(_uploadPeriod));
                }
                Diagnostics.LogException(ex);
                if (_failureCallback != null)
                {
                    _failureCallback();
                }
            }
            finally
            {
                lock (_lock)
                {
                    _sending = false;
                }
            }
        }