protected PieceRequest GetFromList(IPieceRequester peer, BitField bitfield, IList <int> pieces)
{
if (!peer.SupportsFastPeer || !ClientEngine.SupportsFastPeer)
{
return(null);
}
for (int i = 0; i < pieces.Count; i++)
{
int index = pieces[i];
// A peer should only suggest a piece he has, but just in case.
if (index >= bitfield.Length || !bitfield[index] || AlreadyRequested(index))
{
continue;
}
pieces.RemoveAt(i);
var p = new Piece(index, TorrentData.PieceLength, TorrentData.Size);
requests.Add(p);
return(p.Blocks[0].CreateRequest(peer));
}
return(null);
}
public virtual IList <PieceRequest> 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);
}
var bundle = new List <PieceRequest>();
for (int i = 0; bundle.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.Count < count; j++)
{
bundle.Add(p.Blocks[j].CreateRequest(id));
}
}
return(bundle);
}
public IList <PieceRequest> GetStandardRequest(IPieceRequester peer, BitField current, int startIndex, int endIndex, int count)
{
int piecesNeeded = (count * Piece.BlockSize) / TorrentData.PieceLength;
if ((count * Piece.BlockSize) % TorrentData.PieceLength != 0)
{
piecesNeeded++;
}
int checkIndex = CanRequest(current, startIndex, endIndex, ref piecesNeeded);
// Nothing to request.
if (checkIndex == -1)
{
return(null);
}
var bundle = new List <PieceRequest>();
for (int i = 0; bundle.Count < count && i < piecesNeeded; i++)
{
// Request the piece
Piece p = new Piece(checkIndex + i, TorrentData.PieceLength, TorrentData.Size);
requests.Add(p);
for (int j = 0; j < p.Blocks.Length && bundle.Count < count; j++)
{
bundle.Add(p.Blocks[j].CreateRequest(peer));
}
}
return(bundle);
}
