88 lines
1.8 KiB
C#
88 lines
1.8 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Net.Sockets;
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using System.IO;
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namespace OpenRA.Server
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{
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class Connection
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{
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public Socket socket;
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public List<byte> data = new List<byte>();
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public ReceiveState State = ReceiveState.Header;
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public int ExpectLength = 8;
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public int Frame = 0;
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/* client data */
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public int PlayerIndex;
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/* file server state */
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public int NextChunk = 0;
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public int NumChunks = 0;
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public int RemainingBytes = 0;
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public Stream Stream = null;
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public byte[] PopBytes(int n)
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{
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var result = data.GetRange(0, n);
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data.RemoveRange(0, n);
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return result.ToArray();
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}
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bool ReadDataInner()
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{
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var rx = new byte[1024];
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var len = 0;
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for (; ; )
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{
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try
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{
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if (0 < (len = socket.Receive(rx)))
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data.AddRange(rx.Take(len));
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else
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break;
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}
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catch (SocketException e)
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{
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if (e.SocketErrorCode == SocketError.WouldBlock) break;
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Server.DropClient(this, e);
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return false;
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}
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}
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return true;
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}
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public void ReadData()
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{
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if (ReadDataInner())
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while (data.Count >= ExpectLength)
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{
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var bytes = PopBytes(ExpectLength);
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switch (State)
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{
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case ReceiveState.Header:
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{
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ExpectLength = BitConverter.ToInt32(bytes, 0) - 4;
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Frame = BitConverter.ToInt32(bytes, 4);
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State = ReceiveState.Data;
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} break;
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case ReceiveState.Data:
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{
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Server.DispatchOrders(this, Frame, bytes);
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ExpectLength = 8;
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State = ReceiveState.Header;
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Server.UpdateInFlightFrames(this);
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} break;
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}
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}
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}}
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enum ReceiveState { Header, Data };
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}
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