private void DisconnectOnError(string info, Exception ex)
{
UsLogging.Printf(LogWndOpt.Bold, info);
UsLogging.Printf(ex.ToString());
Disconnect();
}
public void Tick_CheckConnectionStatus()
{
try
{
if (!_tcpClient.Connected)
{
UsLogging.Printf("disconnection detected. (_tcpClient.Connected == false).");
throw new Exception();
}
// check if the client socket is still readable
if (_tcpClient.Client.Poll(0, SelectMode.SelectRead))
{
byte[] checkConn = new byte[1];
if (_tcpClient.Client.Receive(checkConn, SocketFlags.Peek) == 0)
{
UsLogging.Printf("disconnection detected. (failed to read by Poll/Receive).");
throw new IOException();
}
}
}
catch (Exception ex)
{
DisconnectOnError("disconnection detected while checking connection status.", ex);
}
}
public static void Print(UsLogPacket packet)
{
if (IsLogFiltered(packet.LogType))
{
return;
}
string logTypeStr = "";
switch (packet.LogType)
{
case UsLogType.Error:
case UsLogType.Exception:
case UsLogType.Assert:
case UsLogType.Warning:
logTypeStr = string.Format("[b][color={0}]({1})[/color][/b]", s_type2color[packet.LogType], packet.LogType);
break;
case UsLogType.Log:
default:
break;
}
string timeStr = string.Format("[color={0}]{1:0.00}({2})[/color]", s_gameLogTimeColor, packet.RealtimeSinceStartup, packet.SeqID);
string ret = string.Format("{0} {1} {2}", timeStr, logTypeStr, packet.Content);
if (!IsCallstackFiltered(packet.LogType) && !string.IsNullOrEmpty(packet.Callstack))
{
ret += string.Format("\n[color=DarkGray]{0}[/color]", packet.Callstack);
}
UsLogging.Printf(LogWndOpt.NetLog, ret);
}
private bool Handle_ExecCommandResponse(eNetCmd cmd, UsCmd c)
{
string ret = c.ReadString();
UsLogging.Printf(string.Format("command executing result: [b]{0}[/b]", ret));
return(true);
}
public void Connect(string host, int port)
{
_host = host;
_port = port;
_tcpClient = new TcpClient();
_tcpClient.BeginConnect(_host, _port, OnConnect, _tcpClient);
UsLogging.Printf(LogWndOpt.Bold, "connecting to [u]{0}:{1}[/u]...", host, port);
}
private bool Handle_HandshakeResponse(eNetCmd cmd, UsCmd c)
{
UsLogging.Printf("eNetCmd.SV_HandshakeResponse received, connection validated.");
SysPost.InvokeMulticast(this, LogicallyConnected);
_guardTimer.Deactivate();
return(true);
}
public bool Connect(string addr)
{
int port = 0;
if (!int.TryParse(Properties.Settings.Default.ServerPort, out port))
{
UsLogging.Printf(LogWndOpt.Error, "Properties.Settings.Default.ServerPort '{0}' invalid, connection aborted.", Properties.Settings.Default.ServerPort);
return(false);
}
_client.Connect(addr, port);
return(true);
}
public void Disconnect()
{
if (_tcpClient != null)
{
_tcpClient.Close();
_tcpClient = null;
_host = "";
_port = 0;
UsLogging.Printf("connection closed.");
SysPost.InvokeMulticast(this, Disconnected);
}
}
// Called when a connection to a server is established
private void OnConnect(IAsyncResult asyncResult)
{
// Retrieving TcpClient from IAsyncResult
TcpClient tcpClient = (TcpClient)asyncResult.AsyncState;
try
{
if (tcpClient.Connected) // may throw NullReference
{
UsLogging.Printf("connected successfully.");
SysPost.InvokeMulticast(this, Connected);
}
else
{
throw new Exception();
}
}
catch (Exception ex)
{
DisconnectOnError("connection failed while handling OnConnect().", ex);
}
}
public void ExecuteCmd(string cmdText)
{
if (!IsConnected)
{
UsLogging.Printf(LogWndOpt.Bold, "not connected to server, command ignored.");
return;
}
if (cmdText.Length == 0)
{
UsLogging.Printf(LogWndOpt.Bold, "the command bar is empty, try 'help' to list all supported commands.");
return;
}
UsCmd cmd = new UsCmd();
cmd.WriteNetCmd(eNetCmd.CL_ExecCommand);
cmd.WriteString(cmdText);
Send(cmd);
UsLogging.Printf(string.Format("command executed: [b]{0}[/b]", cmdText));
}
public void Tick_ReceivingData()
{
try
{
while (_tcpClient.Available > 0)
{
byte[] cmdLenBuf = new byte[2];
int cmdLenRead = _tcpClient.GetStream().Read(cmdLenBuf, 0, cmdLenBuf.Length);
ushort cmdLen = BitConverter.ToUInt16(cmdLenBuf, 0);
if (cmdLenRead > 0 && cmdLen > 0)
{
byte[] buffer = new byte[cmdLen];
int len = _tcpClient.GetStream().Read(buffer, 0, buffer.Length);
UsCmd cmd = new UsCmd(buffer);
UsCmdExecResult result = _cmdParser.Execute(cmd);
switch (result)
{
case UsCmdExecResult.Succ:
break;
case UsCmdExecResult.Failed:
UsLogging.Printf("net cmd execution failed: {0}.", new UsCmd(buffer).ReadNetCmd());
break;
case UsCmdExecResult.HandlerNotFound:
UsLogging.Printf("net unknown cmd: {0}.", new UsCmd(buffer).ReadNetCmd());
break;
}
}
}
}
catch (Exception ex)
{
DisconnectOnError("error detected while receiving data.", ex);
}
}
private void OnGuardingTimeout(object sender, EventArgs e)
{
UsLogging.Printf(LogWndOpt.Error, "guarding timeout, closing connection...");
Disconnect();
}
