/// <summary> /// Test latency (ping) to server /// </summary> /// <returns>Latency in milliseconds (ms)</returns> public int TestServerLatency(Server server, int retryCount = 3) { var latencyUri = CreateTestUrl(server, "latency.txt"); var timer = new Stopwatch(); using (var client = new SpeedTestHttpClient()) { for (var i = 0; i < retryCount; i++) { string testString; try { timer.Start(); testString = client.GetStringAsync(latencyUri).ConfigureAwait(false).GetAwaiter().GetResult(); } catch (WebException) { continue; } finally { timer.Stop(); } if (!testString.StartsWith("test=test")) { throw new InvalidOperationException("Server returned incorrect test string for latency.txt"); } } } return((int)timer.ElapsedMilliseconds / retryCount); }
private static double TestSpeed <T>(IEnumerable <T> testData, Func <HttpClient, T, CancellationToken, Task <int> > doWork, int concurencyCount = 2) { var timer = new Stopwatch(); var throttler = new SemaphoreSlim(concurencyCount); var cancleation = new CancellationTokenSource(); timer.Start(); var clients = new List <SpeedTestHttpClient>(); var downloadTasks = testData.Select(async data => { var client = new SpeedTestHttpClient(); clients.Add(client); await throttler.WaitAsync().ConfigureAwait(false); try { var size = await doWork(client, data, cancleation.Token).ConfigureAwait(false); return(size); } finally { client.Dispose(); throttler.Release(); } }).ToArray(); if (!Task.WaitAll(downloadTasks, TimeSpan.FromMinutes(1))) { cancleation.Cancel(); foreach (var speedTestHttpClient in clients) { speedTestHttpClient.CancelPendingRequests(); } return(Double.NaN); } timer.Stop(); double totalSize = downloadTasks.Sum(task => task.Result); return((totalSize * 8 / 1024) / ((double)timer.ElapsedMilliseconds / 1000)); }
private const int MaxUploadSize = 4; // 400 KB #region ISpeedTestClient /// <summary> /// Download speedtest.net settings /// </summary> /// <returns>speedtest.net settings</returns> public Settings GetSettings() { using (var client = new SpeedTestHttpClient()) { var settings = client.GetConfig <Settings>(ConfigUrl).GetAwaiter().GetResult(); var serversConfig = new ServersList(); foreach (var serversUrl in ServersUrls) { try { serversConfig = client.GetConfig <ServersList>(serversUrl).GetAwaiter().GetResult(); if (serversConfig.Servers.Count > 0) { break; } } catch { // } } if (serversConfig.Servers.Count <= 0) { throw new InvalidOperationException("SpeedTest does not return any server"); } var ignoredIds = settings.ServerConfig.IgnoreIds.Split(new[] { "," }, StringSplitOptions.RemoveEmptyEntries); serversConfig.CalculateDistances(settings.Client.GeoCoordinate); settings.Servers = serversConfig.Servers .Where(s => !ignoredIds.Contains(s.Id.ToString())) .OrderBy(s => s.Distance) .ToList(); return(settings); } }