73 lines
1.8 KiB
C#
73 lines
1.8 KiB
C#
using System;
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using System.Buffers;
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using System.Collections.Generic;
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using System.Text;
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using System.Threading.Tasks;
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#if NETSTANDARD2_0_OR_GREATER || NET5_0_OR_GREATER
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namespace System.Net.Sockets.Kcp.Simple
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{
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/// <summary>
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/// 简单例子
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/// </summary>
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public class SimpleKcpClient : IKcpCallback
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{
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UdpClient client;
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public SimpleKcpClient(int port)
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: this(port, null)
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{
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}
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public SimpleKcpClient(int port, IPEndPoint endPoint)
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{
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client = new UdpClient(port);
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kcp = new SimpleSegManager.Kcp(2001, this);
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this.EndPoint = endPoint;
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BeginRecv();
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}
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public SimpleSegManager.Kcp kcp { get; }
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public IPEndPoint EndPoint { get; set; }
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public void Output(IMemoryOwner<byte> buffer, int avalidLength)
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{
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var s = buffer.Memory.Span.Slice(0, avalidLength).ToArray();
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client.SendAsync(s, s.Length, EndPoint);
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buffer.Dispose();
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}
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public async void SendAsync(byte[] datagram, int bytes)
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{
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kcp.Send(datagram.AsSpan().Slice(0, bytes));
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}
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public async ValueTask<byte[]> ReceiveAsync()
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{
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var (buffer, avalidLength) = kcp.TryRecv();
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while (buffer == null)
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{
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await Task.Delay(10);
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(buffer, avalidLength) = kcp.TryRecv();
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}
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var s = buffer.Memory.Span.Slice(0, avalidLength).ToArray();
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return s;
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}
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private async void BeginRecv()
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{
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var res = await client.ReceiveAsync();
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EndPoint = res.RemoteEndPoint;
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kcp.Input(res.Buffer);
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BeginRecv();
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}
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}
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}
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#endif
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