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C# DatagramSocket.CancelIOAsync方法代碼示例

本文整理匯總了C#中Windows.Networking.Sockets.DatagramSocket.CancelIOAsync方法的典型用法代碼示例。如果您正苦於以下問題:C# DatagramSocket.CancelIOAsync方法的具體用法?C# DatagramSocket.CancelIOAsync怎麽用?C# DatagramSocket.CancelIOAsync使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在Windows.Networking.Sockets.DatagramSocket的用法示例。


在下文中一共展示了DatagramSocket.CancelIOAsync方法的1個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的C#代碼示例。

示例1: Search

        private async void Search(string st, TimeSpan? timeout = null)
        {
            Log("Search - " + st);

            var ssdp_data = new StringBuilder()
                .Append("M-SEARCH * HTTP/1.1").Append("\r\n")
                .Append("HOST: ").Append(MULTICAST_ADDRESS).Append(":").Append(SSDP_PORT.ToString()).Append("\r\n")
                .Append("MAN: ").Append("\"ssdp:discover\"").Append("\r\n")
                .Append("MX: ").Append(MX.ToString()).Append("\r\n")
                .Append("ST: ").Append(st).Append("\r\n")
                .Append("\r\n")
                .ToString();

            var adapters = TargetNetworkAdapters ?? await GetActiveAdaptersAsync().ConfigureAwait(false);

            await Task.WhenAll(adapters.Select(async adapter =>
            {
                using (var socket = new DatagramSocket())
                {
                    socket.Control.DontFragment = true;
                    socket.MessageReceived += OnDatagramSocketMessageReceived;

                    try
                    {
                        await socket.BindServiceNameAsync("", adapter);

                        using (var output = await socket.GetOutputStreamAsync(MULTICAST_HOST, SSDP_PORT.ToString()))
                        {
                            using (var writer = new DataWriter(output))
                            {
                                writer.WriteString(ssdp_data);
                                await writer.StoreAsync();
                            }
                        }

                        await Task.Delay(timeout ?? DEFAULT_TIMEOUT).ConfigureAwait(false);
                        Log("Search Timeout");
                        await socket.CancelIOAsync();
                    }
                    catch (Exception e)
                    {
                        Log("Failed to send multicast: " + e.StackTrace);
                    }

                    socket.MessageReceived -= OnDatagramSocketMessageReceived;
                }
            })).ConfigureAwait(false);

            Finished?.Invoke(this, new EventArgs());
        }
開發者ID:kazyx,項目名稱:kz-ssdp-discovery,代碼行數:50,代碼來源:SsdpDiscoveryUwp.cs


注:本文中的Windows.Networking.Sockets.DatagramSocket.CancelIOAsync方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台,相關代碼片段篩選自各路編程大神貢獻的開源項目,源碼版權歸原作者所有,傳播和使用請參考對應項目的License;未經允許,請勿轉載。