bool ReadDataInner(Server server)
{
var rx = new byte[1024];
var len = 0;
for (; ;)
{
try
{
//Poll the socket first to see if there's anything there.
if (!Socket.Poll(0, SelectMode.SelectRead))
{
break;
}
if (0 < (len = Socket.Receive(rx)))
{
Data.AddRange(rx.Take(len));
}
else
{
if (len == 0)
{
server.DropClient(this);
}
break;
}
}
catch (SocketException ex)
{
if (ex.SocketErrorCode == SocketError.WouldBlock)
{
break;
}
server.DropClient(this);
return(false);
}
}
lastReceivedTime = WarGame.RunTime;
TimeoutMessageShown = false;
return(true);
}
public void ReadData(Server server)
{
if (ReadDataInner(server))
{
while (Data.Count >= ExpectLength)
{
var bytes = PopBytes(ExpectLength);
switch (State)
{
case ReceiveState.Header:
{
ExpectLength = BitConverter.ToInt32(bytes, 0) - 4;
Frame = BitConverter.ToInt32(bytes, 4);
State = ReceiveState.Data;
if (ExpectLength < 0 || ExpectLength > MaxOrderLength)
{
server.DropClient(this);
return;
}
}
break;
case ReceiveState.Data:
{
if (MostRecentFrame < Frame)
{
MostRecentFrame = Frame;
}
server.DispatchOrders(this, Frame, bytes);
ExpectLength = 8;
State = ReceiveState.Header;
}
break;
}
}
}
}
void ITick.Tick(S server)
{
if ((WarGame.RunTime - lastPing) > PingInterval || isInitialPing)
{
isInitialPing = false;
lastPing = WarGame.RunTime;
//Ignore client timeout in singleplayer games to make debugging easier
if (server.LobbyInfo.NonBotClients.Count() < 2 && !server.Dedicated)
{
foreach (var c in server.Conns.ToList())
{
server.SendOrderTo(c, "Ping", WarGame.RunTime.ToString());
}
}
else
{
foreach (var c in server.Conns.ToList())
{
if (c == null || c.Socket == null)
{
continue;
}
var client = server.GetClient(c);
if (client == null)
{
server.DropClient(c);
server.SendMessage("A player has been dropped after timing out.");
continue;
}
if (c.TimeSinceLastResponse < ConnTimeout)
{
server.SendOrderTo(c, "Ping", WarGame.RunTime.ToString());
if (!c.TimeoutMessageShown && c.TimeSinceLastResponse > PingInterval * 2)
{
server.SendMessage(client.Name + " is experiencing connection problems.");
c.TimeoutMessageShown = true;
}
}
else
{
server.SendMessage(client.Name + " has benn dropped after timing out.");
server.DropClient(c);
}
}
}
if (WarGame.RunTime - lastConnReport > ConnReportInterval)
{
lastConnReport = WarGame.RunTime;
var timeouts = server.Conns.Where(c => c.TimeSinceLastResponse > ConnReportInterval && c.TimeSinceLastResponse < ConnTimeout).OrderBy(c => c.TimeSinceLastResponse);
foreach (var c in timeouts)
{
if (c == null || c.Socket == null)
{
continue;
}
var client = server.GetClient(c);
if (client != null)
{
server.SendMessage("{0} will be dropped in {1} seconds.".F(client.Name, (ConnTimeout - c.TimeSinceLastResponse) / 1000));
}
}
}
}
}
