Socket ReceiveAsync是否支持UDP？

Question

我已经看到了TCP的ReceiveAsync示例,但没有看到UDP.ReceiveAsync是否与UDP兼容？如果是这样,你看过任何例子吗？

谢谢.

Answer 1

UDP是面向数据报的协议,因此您使用Socket.ReceiveFromAsync方法.

例:

var s = new Socket(SocketType.Dgram, ProtocolType.Udp);
s.Bind(localEP);

var e = new SocketAsyncEventArgs();
e.Completed += OnReceive;
e.RemoteEndPoint = new IPEndPoint(IPAddress.IPv6Any, 0);
e.SetBuffer(new byte[BufferSize], 0, BufferSize);

if (!s.ReceiveFromAsync(e)) OnReceive(s, e);