internal bool SendMessageInternal(OutgoingMessage msg, DeliveryType deliveryType)
{
if (disposed)
{
return(false);
}
byte[] sendBuffer = msg.ToByteArray(deliveryType);
try
{
lock (socket)
{
socket.DontFragment = msg.DontFragment;
socket.SendTo(sendBuffer, msg.RemoteEP);
// TO DO: Check sent size
}
}
catch (SocketException ex)
{
if (ex.SocketErrorCode == SocketError.ConnectionReset ||
ex.SocketErrorCode == SocketError.MessageSize)
{
return(false);
}
if (ex.SocketErrorCode == SocketError.WouldBlock)
{
throw new AgNetException("Socket send buffer is full. Try to expand it.");
}
}
msg.LastSentTime = DateTime.UtcNow;
msg.SentTimes++;
msg.Status = AgNetSendStatus.Sent;
if (deliveryType != DeliveryType.Reliable)
{
msg.Dispose();
}
return(true);
}
bool ProcessMessage(IAgNetChannel channel, IncomingMessage msg)
{
if (msg.Type == PacketType.ConfirmDelivery)
{
int confirmed = msg.ReadInt32();
for (int i = 0; i < confirmed; i++)
{
int sequence = msg.ReadInt32();
OutgoingMessage deliveryFor = reliableChannel.PopFromAwaitConfirmation(sequence);
if (deliveryFor == null)
{
continue;
}
deliveryFor.Status = AgNetSendStatus.Confirmed;
if (State == SessionState.Connecting && deliveryFor.Type == PacketType.ConnectAck)
{
SetState(SessionState.Connected);
}
if (State == SessionState.Closing && deliveryFor.Type == PacketType.FinResp)
{
Close("Shutdown method called");
}
deliveryFor.Dispose();
}
return(false);
}
if (msg.Type == PacketType.Ping)
{
Pong(msg);
return(false);
}
if (msg.Type == PacketType.MTUExpandRequest)
{
ReceivedMtuExpand(msg);
return(false);
}
if (msg.Type == PacketType.MTUSuccess)
{
ReceivedMtuResponse(msg);
return(false);
}
if (msg.Type == PacketType.Pong)
{
lastPongReceived = DateTime.UtcNow;
DateTime sent = new DateTime(msg.ReadInt64());
TimeSpan ts = DateTime.UtcNow - sent;
PingRoundtrip = (int)ts.TotalMilliseconds;
return(false);
}
if (msg.Type == PacketType.ConnectionError)
{
Close(msg.ReadString());
return(false);
}
if (msg.Type == PacketType.FinAck)
{
SetState(SessionState.Closing);
FinResp();
return(false);
}
if (msg.Type == PacketType.FinResp)
{
Close("Connection closed by remote peer");
return(false);
}
if (msg.Type == PacketType.ConnectAck && State == SessionState.Closed)
{
var server = peer as AgNetServer;
if (server != null)
{
if (server.MaximumSessions > 0 && server.SessionsCount >= server.MaximumSessions)
{
SendError("Server rejected connection");
}
else
{
SetState(SessionState.Connected);
}
}
return(false);
}
if (msg.Type == PacketType.Ping)
{
return(false);
}
if (msg.Type == PacketType.PartialMessage)
{
return(false);
}
if (State == SessionState.Connected && msg.Type == PacketType.UserData)
{
return(true);
}
Close("Unknown service packet");
return(false);
}