59 lines
1.7 KiB
C#
59 lines
1.7 KiB
C#
using System;
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using System.Linq;
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using System.Net;
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using System.Net.Sockets;
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using System.Threading.Tasks;
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using System.Xml.Linq;
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namespace MediaBrowser.Dlna.PlayTo
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{
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public static class Extensions
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{
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public static Task<int> ReceiveAsync(this Socket socket, byte[] buffer, int offset, int size)
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{
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var tcs = new TaskCompletionSource<int>(socket);
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var remoteip = new IPEndPoint(IPAddress.Any, 0);
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var endpoint = (EndPoint)remoteip;
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socket.BeginReceiveFrom(buffer, offset, size, SocketFlags.None, ref endpoint, iar =>
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{
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var result = (TaskCompletionSource<int>)iar.AsyncState;
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var iarSocket = (Socket)result.Task.AsyncState;
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try
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{
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result.TrySetResult(iarSocket.EndReceive(iar));
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}
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catch (Exception exc)
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{
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result.TrySetException(exc);
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}
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}, tcs);
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return tcs.Task;
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}
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public static string GetValue(this XElement container, XName name)
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{
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var node = container.Element(name);
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return node == null ? null : node.Value;
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}
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public static string GetAttributeValue(this XElement container, XName name)
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{
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var node = container.Attribute(name);
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return node == null ? null : node.Value;
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}
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public static string GetDescendantValue(this XElement container, XName name)
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{
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var node = container.Descendants(name)
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.FirstOrDefault();
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return node == null ? null : node.Value;
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}
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}
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}
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