internal void EnqueueSend(DhtMessage message, Node node, IPEndPoint endpoint, TaskCompletionSource <SendQueryEventArgs> tcs = null)
{
if (message.TransactionId == null)
{
if (message is ResponseMessage)
{
throw new ArgumentException("Message must have a transaction id");
}
do
{
message.TransactionId = TransactionId.NextId();
} while (DhtMessageFactory.IsRegistered(message.TransactionId));
}
// We need to be able to cancel a query message if we time out waiting for a response
if (message is QueryMessage)
{
DhtMessageFactory.RegisterSend((QueryMessage)message);
}
SendQueue.Enqueue(new SendDetails(node, endpoint, message, tcs));
}