protected virtual MessageBundle GetStandardRequest(PeerId id, BitField current, List <PeerId> otherPeers, int startIndex, int endIndex, int count)
{
int piecesNeeded = (count * Piece.BlockSize) / id.TorrentManager.Torrent.PieceLength;
if ((count * Piece.BlockSize) % id.TorrentManager.Torrent.PieceLength != 0)
{
piecesNeeded++;
}
int checkIndex = CanRequest(current, startIndex, endIndex, ref piecesNeeded);
// Nothing to request.
if (checkIndex == -1)
{
return(null);
}
MessageBundle bundle = new MessageBundle();
for (int i = 0; bundle.Messages.Count < count && i < piecesNeeded; i++)
{
// Request the piece
Piece p = new Piece(checkIndex + i, id.TorrentManager.Torrent.PieceLength, id.TorrentManager.Torrent.Size);
requests.Add(p);
for (int j = 0; j < p.Blocks.Length && bundle.Messages.Count < count; j++)
{
p.Blocks[j].Requested = true;
bundle.Messages.Add(p.Blocks[j].CreateRequest(id));
}
}
return(bundle);
}
private void HandleRequest(PeerId id, RequestMessage m)
{
Request r = new Request();
r.PieceIndex = m.PieceIndex;
r.RequestedOff = id;
r.RequestLength = m.RequestLength;
r.StartOffset = m.StartOffset;
List <Request> current = requests.FindAll(delegate(Request req) { return(req.CompareTo(r) == 0); });
if (current.Count > 0)
{
foreach (Request request in current)
{
if (request.Verified)
{
if (id.TorrentManager.Bitfield[request.PieceIndex])
{
Logger.Log(null, "Double request: {0}", m);
Logger.Log(null, "From: {0} and {1}", id.PeerID, r.RequestedOff.PeerID);
}
else
{
// The piece failed a hashcheck, so ignore it this time
requests.Remove(request);
}
}
}
}
requests.Add(r);
}