private void ProcessPeers()
{
if (Interlocked.Exchange(ref isProcessPeers, 1) == 1)
{
return;
}
foreach (var peer in Peers.OrderByDescending(x => x.Value.PiecesRequiredAvailable))
{
if (DateTime.UtcNow > peer.Value.LastActive.Add(peerTimeout))
{
peer.Value.Disconnect();
continue;
}
if (!peer.Value.IsHandshakeSent || !peer.Value.IsHandshakeReceived)
{
continue;
}
if (Torrent.IsCompleted)
{
peer.Value.SendNotInterested();
}
else
{
peer.Value.SendInterested();
}
if (peer.Value.IsCompleted && Torrent.IsCompleted)
{
peer.Value.Disconnect();
continue;
}
peer.Value.SendKeepAlive();
// let them leech
if (Torrent.IsStarted && Leechers.Count < maxLeechers)
{
if (peer.Value.IsInterestedReceived && peer.Value.IsChokeSent)
{
peer.Value.SendUnchoke();
}
}
// ask to leech
if (!Torrent.IsCompleted && Seeders.Count <= maxSeeders)
{
if (!peer.Value.IsChokeReceived)
{
Seeders.TryAdd(peer.Key, peer.Value);
}
}
}
Interlocked.Exchange(ref isProcessPeers, 0);
}
