public static async Task <int> MainAsync() { Logger.LogInformation($"Starting DirectMethodSender with the following settings:\r\n{Settings.Current}"); (CancellationTokenSource cts, ManualResetEventSlim completed, Option <object> handler) = ShutdownHandler.Init(TimeSpan.FromSeconds(5), Logger); DirectMethodSenderBase directMethodClient = null; ModuleClient reportClient = null; Option <Uri> analyzerUrl = Settings.Current.AnalyzerUrl; Option <Uri> testReportCoordinatorUrl = Settings.Current.TestResultCoordinatorUrl; try { Guid batchId = Guid.NewGuid(); Logger.LogInformation($"Batch Id={batchId}"); directMethodClient = await CreateClientAsync(Settings.Current.InvocationSource); reportClient = await ModuleUtil.CreateModuleClientAsync( Settings.Current.TransportType, ModuleUtil.DefaultTimeoutErrorDetectionStrategy, ModuleUtil.DefaultTransientRetryStrategy, Logger); Logger.LogInformation($"Load gen delay start for {Settings.Current.TestStartDelay}."); await Task.Delay(Settings.Current.TestStartDelay, cts.Token); DateTime testStartAt = DateTime.UtcNow; while (!cts.Token.IsCancellationRequested && IsTestTimeUp(testStartAt)) { (HttpStatusCode result, long dmCounter) = await directMethodClient.InvokeDirectMethodAsync(cts); // TODO: Create an abstract class to handle the reporting client generation if (testReportCoordinatorUrl.HasValue) { await testReportCoordinatorUrl.ForEachAsync( async (Uri uri) => { TestResultCoordinatorClient trcClient = new TestResultCoordinatorClient { BaseUrl = uri.AbsoluteUri }; await ModuleUtil.ReportStatus( trcClient, Logger, Settings.Current.ModuleId + ".send", ModuleUtil.FormatDirectMethodTestResultValue( Settings.Current.TrackingId.Expect(() => new ArgumentException("TrackingId is empty")), batchId.ToString(), dmCounter.ToString(), result.ToString()), TestOperationResultType.DirectMethod.ToString()); }); } else { await analyzerUrl.ForEachAsync( async (Uri uri) => { AnalyzerClient analyzerClient = new AnalyzerClient { BaseUrl = uri.AbsoluteUri }; await ReportStatus(Settings.Current.TargetModuleId, result, analyzerClient); }, async() => { await reportClient.SendEventAsync("AnyOutput", new Message(Encoding.UTF8.GetBytes("Direct Method call succeeded."))); }); } await Task.Delay(Settings.Current.DirectMethodDelay, cts.Token); } await cts.Token.WhenCanceled(); } catch (Exception e) { Logger.LogError(e, "Error occurred during direct method sender test setup"); } finally { // Implicit CloseAsync() directMethodClient?.Dispose(); reportClient?.Dispose(); } completed.Set(); handler.ForEach(h => GC.KeepAlive(h)); Logger.LogInformation("DirectMethodSender Main() finished."); return(0); }