private IEnumerable<MessageVersion1> ApplyMessageBuffer(MessageVersion1 message, out Neighbor neighbor)
{
neighbor = null;
if (!CheckNeighbor(message)) return null;
neighbor = neighbors.Single(n => n.Identifier.Equals(message.PeerId));
if (message.PacketIndex <= neighbor.IncomingPacketIndex) return null;
if (message.PacketIndex > neighbor.IncomingPacketIndex + 1)
{
lock (neighbor)
neighbor.AddMessageToBuffer(message);
return null;
}
lock (neighbor)
if (neighbor.HasBufferedMessages)
{
neighbor.AddMessageToBuffer(message);
neighbor.IncomingPacketIndex += (ulong)neighbor.BufferedMessages.Count;
return neighbor.RemoveMessagesFromBuffer();
}
else
{
neighbor.IncomingPacketIndex++;
return new[] { message };
}
}
