protected void NegotiateChannels(Connection.Tcp connection)
{
Message.Base msg;
if (connection.Receive(out msg))
{
if (msg.IsType <Message.Negotiation.Start>())
{
connection.Parameters.guid = Guid.NewGuid();
SaveMonitor(connection);
// Send a new Guid for these connections and the number of associated channels
Message.Negotiation.New n = new Message.Negotiation.New
{
guid = connection.Parameters.guid,
nbChannels = (ushort)Math.Min(channels != null ? channels.Count : 0, ushort.MaxValue)
};
connection.Send(n);
if (n.nbChannels <= 0)
{
Drop(connection, "No channels configured.");
}
for (ushort i = 0; i < n.nbChannels; i++)
{
ServerChannel channel = channels[i];
Message.Negotiation.Parameters param = new Message.Negotiation.Parameters
{
guid = n.guid,
channel = i,
type = channel.type,
heartbeat = channel.parameters.Heartbeat,
autoReconnect = !channel.parameters.disableAutoReconnect
};
connection.Send(param);
}
}
else if (msg.IsType <Message.Negotiation.Channel.TCP>())
{
Message.Negotiation.Channel.TCP tcp = (Message.Negotiation.Channel.TCP)msg;
connection.SetConfig(tcp.guid, tcp.channel, channels[tcp.channel].parameters.Heartbeat);
SaveChannel(connection);
}
else
{
Drop(connection, "Unsupported negotiation command '{0}'.", msg.GetType());
}
}
else
{
Drop(connection, "Expected to receive some negotiation command.");
}
}
protected void NegotiateChannels(Connection.Tcp connection)
{
// Check if we must negotiate other channel or just open the current one
if (connection.Remote == Guid.Empty)
{
connection.Send(new Message.Negotiation.Start());
Message.Base msg;
if (connection.Receive(out msg) && msg.IsType <Message.Negotiation.New>())
{
Message.Negotiation.New n = (Message.Negotiation.New)msg;
connection.Parameters.guid = n.guid;
ushort nb_channels = n.nbChannels;
if (nb_channels > 0)
{
List <Message.Negotiation.Parameters> parameters = new List <Message.Negotiation.Parameters>(nb_channels);
for (ushort i = 0; i < nb_channels; i++)
{
if (connection.Receive(out msg) && msg.IsType <Message.Negotiation.Parameters>())
{
Message.Negotiation.Parameters param = (Message.Negotiation.Parameters)msg;
parameters.Add(param);
}
else
{
Drop(connection, "Expected to receive channel parameterts for channel {0}.", i);
}
}
SaveMonitor(connection);
foreach (Message.Negotiation.Parameters param in parameters)
{
if (!Ready(param.guid, param.channel))
{
switch (param.type)
{
case Channel.Type.TCP:
ConnectTcp(param);
break;
case Channel.Type.UDP:
ConnectUdp(connection, param);
break;
}
}
}
state = State.RUNNING;
}
else
{
Drop(connection, "No channels configured.");
}
}
else
{
Drop(connection, "Expected to receive the new connection negotiation parameters.");
}
}
else
{
Message.Negotiation.Channel.TCP tcp = new Message.Negotiation.Channel.TCP
{
guid = connection.Remote,
channel = connection.Channel
};
connection.Send(tcp);
SaveChannel(connection);
}
}