private async Task SendLoop(CancellationToken cancellationToken)
{
while (!cancellationToken.IsCancellationRequested)
{
while (state == State.WaitingForParentConnection)
{
byte[] message = { (byte)CommandCode.ConnectToParent };
await udpclient.SendAsync(message, message.Length, parentEndPoint).ConfigureAwait(false);
await Task.Delay(1000, cancellationToken).ConfigureAwait(false);
}
while (state == State.Working || state == State.Terminating)
{
foreach (var peer in peers)
{
if (peer.Value.LastPinged.SendAttempts > AttemtsBeforeBan)
{
await DisconnectPeer(peer.Key).ConfigureAwait(false);
continue;
}
foreach (var message in peer.Value.PendingMessagesLastSendAttempt)
{
if (message.Value.SendAttempts > AttemtsBeforeBan)
{
await DisconnectPeer(peer.Key).ConfigureAwait(false);
break;
}
if (DateTime.Now - message.Value.LastSendTime > retryTimeout)
{
await this.SendMessage(message.Key, peer.Key).ConfigureAwait(false);
var newSentData = new MessageSentData(DateTime.Now, message.Value.SendAttempts + 1);
peer.Value.PendingMessagesLastSendAttempt[message.Key] = newSentData;
peer.Value.LastPinged = newSentData;
}
}
if (DateTime.Now - peer.Value.LastPinged.LastSendTime > retryTimeout)
{
var command = (byte)(state == State.Terminating ? CommandCode.Dead : CommandCode.Ping);
byte[] message = { command };
await udpclient.SendAsync(message, 1, peer.Key).ConfigureAwait(false);
var newSentData = new MessageSentData(DateTime.Now, peer.Value.LastPinged.SendAttempts + 1);
peer.Value.LastPinged = newSentData;
}
}
await Task.Delay(1000, cancellationToken).ConfigureAwait(false);
}
}
}
public void MarkAlive()
{
LastPinged = new MessageSentData(DateTime.Now, 0);
}
