/// <summary>
/// Process any piece requests in buffer and send to remote peer.
/// </summary>
/// <param name="cancelTask"></param>
/// <returns></returns>
private void PieceRequestProcessing(CancellationToken cancelTask)
{
try
{
Log.Logger.Info("Piece request processing task started...");
while (true)
{
Peer remotePeer = null;
PieceRequest request = pieceRequestQueue.Take(cancelTask);
try
{
Log.Logger.Info($"Piece Reqeuest {request.pieceNumber} {request.blockOffset} {request.blockSize}.");
if (_manager.GetPeer(request.infoHash, request.ip, out remotePeer))
{
PieceBuffer requestBuffer = GetPieceFromTorrent(remotePeer, request.pieceNumber);
byte[] requestBlock = new byte[request.blockSize];
Array.Copy(requestBuffer.Buffer, (Int32)request.blockOffset, requestBlock, 0, (Int32)request.blockSize);
PWP.Piece(remotePeer, request.pieceNumber, request.blockOffset, requestBlock);
remotePeer.Tc.TotalBytesUploaded += request.blockSize;
}
}
catch (Exception ex)
{
Log.Logger.Error(ex);
// Remote peer most probably closed socket so close connection
remotePeer?.Close();
}
}
}
catch (Exception ex)
{
Log.Logger.Debug(ex);
}
Log.Logger.Info("Piece request processing task terminated.");
}
/// <summary>
/// Handles request command from remote peer.
/// </summary>
/// <param name="remotePeer">Remote peer.</param>
private static void HandleREQUEST(Peer remotePeer)
{
PieceRequest request = new PieceRequest
{
infoHash = remotePeer.Tc.infoHash,
ip = remotePeer.Ip,
pieceNumber = Util.UnPackUInt32(remotePeer.ReadBuffer, 1),
blockOffset = Util.UnPackUInt32(remotePeer.ReadBuffer, 5),
blockSize = Util.UnPackUInt32(remotePeer.ReadBuffer, 9)
};
remotePeer.Tc.pieceRequestQueue.Add(request);
Log.Logger.Info($"{RemotePeerID(remotePeer)}RX REQUEST {request.pieceNumber} Block Offset {request.blockOffset} Data Size {request.blockSize}.");
}