65 lines
1.7 KiB
C#
65 lines
1.7 KiB
C#
using System.Diagnostics;
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using Lidgren.Network;
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using System.IO;
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using SpacePew.Common;
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namespace SpacePew.Networking
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{
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public class StreamingClient
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{
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private FileStream _inputStream;
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private int _sentOffset;
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private int _chunkLen;
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private byte[] _tmpBuffer;
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private NetConnection _connection;
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public StreamingClient(NetConnection conn, string fileName)
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{
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_connection = conn;
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_inputStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read);
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_chunkLen = _connection.Peer.Configuration.MaximumTransmissionUnit - 20;
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_tmpBuffer = new byte[_chunkLen];
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_sentOffset = 0;
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}
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public void Heartbeat()
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{
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if (_inputStream == null)
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return;
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if (_connection.CanSendImmediately(NetDeliveryMethod.ReliableOrdered, 1))
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{
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long remaining = _inputStream.Length - _sentOffset;
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int sendBytes = (remaining > _chunkLen ? _chunkLen : (int)remaining);
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_inputStream.Read(_tmpBuffer, 0, sendBytes);
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NetOutgoingMessage message;
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if (_sentOffset == 0)
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{
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message = _connection.Peer.CreateMessage(sendBytes + 8);
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message.Write((int)UdpNetworkPacketType.LevelResponse);
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message.Write((ulong)_inputStream.Length);
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message.Write(Path.GetFileName(_inputStream.Name));
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_connection.SendMessage(message, NetDeliveryMethod.ReliableOrdered, 1);
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}
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message = _connection.Peer.CreateMessage(sendBytes + 8);
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message.Write((int)UdpNetworkPacketType.LevelResponse);
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message.Write(_tmpBuffer, 0, sendBytes);
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_connection.SendMessage(message, NetDeliveryMethod.ReliableOrdered, 1);
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_sentOffset += sendBytes;
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if (remaining - sendBytes <= 0)
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{
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_inputStream.Close();
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_inputStream.Dispose();
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_inputStream = null;
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}
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}
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}
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}
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}
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