//Event
private void Base_OnConnected(object sender, SocketAsyncEventArgs e)
{
if (e != null)
{
if (e.SocketError != SocketError.Success)
{
if (socket != null)
{
socket.Close();
socket = null;
}
lock (stateLock)
state = GClientState.Disconnected;
OnFatalError(new SocketException((int)e.SocketError));
return;
}
e.Dispose();
}
lock (stateLock)
state = GClientState.Connected;
receiveEventArgs.SetBuffer(header, 0, header.Length);
receiveEventArgs.Completed += Base_OnHeaderReceived;
OnConnected();
try {
if (!socket.ReceiveAsync(receiveEventArgs))
{
Base_OnHeaderReceived(socket, receiveEventArgs);
}
} catch (Exception ex) {
DisconnectByError(ex);
}
}
private bool DisconnectedJob()
{
lock (stateLock) {
if (state != GClientState.Connected)
{
return(false);
}
state = GClientState.Disconnecting;
}
lock (globalLock) {
try {
socket.Shutdown(SocketShutdown.Both);
} catch {
}
socket.Close();
socket = null;
lock (stateLock)
state = GClientState.Disconnected;
}
return(true);
}
public bool Connect(IPEndPoint serverEndPoint, bool useAsync = false, int timeout = 3000)
{
//Change state
lock (stateLock) {
if (state != GClientState.Disconnected)
{
throw new Exception("Socket already connected.");
}
state = GClientState.Connecting;
this.serverEndPoint = serverEndPoint;
}
Reset();
//Socket setting
Exception socketSettingException = null;
lock (globalLock) {
try {
socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
socket.NoDelay = socketArgs.noDelay;
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Linger, new LingerOption(socketArgs.useLinger, socketArgs.lingerTime));
byte[] optionBuffer = new byte[12];
Array.Copy(BitConverter.GetBytes(socketArgs.useKeepAlive ? 1 : 0), 0, optionBuffer, 0, sizeof(int));
Array.Copy(BitConverter.GetBytes(socketArgs.keepAliveTime), 0, optionBuffer, sizeof(int), sizeof(int));
Array.Copy(BitConverter.GetBytes(socketArgs.keepAliveInterval), 0, optionBuffer, sizeof(int) * 2, sizeof(int));
try {
socket.IOControl(IOControlCode.KeepAliveValues, optionBuffer, null);
} catch {
socketArgs.useKeepAlive = false;
}
} catch (Exception ex) {
if (socket != null)
{
socket.Close();
socket = null;
}
lock (stateLock)
state = GClientState.Disconnected;
socketSettingException = ex;
}
}
if (socketSettingException != null)
{
lock (stateLock) {
state = GClientState.Disconnected;
}
OnFatalError(socketSettingException);
return(false);
}
//Connect
SocketAsyncEventArgs connectEventArgs = null;
try {
if (useAsync)
{
//Async
connectEventArgs = new SocketAsyncEventArgs();
connectEventArgs.Completed += Base_OnConnected;
connectEventArgs.RemoteEndPoint = serverEndPoint;
if (!socket.ConnectAsync(connectEventArgs))
{
//비동기 완료
Base_OnConnected(socket, connectEventArgs);
}
else
{
CancelAsyncConnect(timeout);
}
}
else
{
//Blocking
IAsyncResult result = socket.BeginConnect(serverEndPoint, null, null);
bool success = result.AsyncWaitHandle.WaitOne(timeout, true);
if (socket.Connected)
{
Base_OnConnected(socket, null);
}
else
{
lock (stateLock) {
state = GClientState.Disconnected;
}
return(false);
}
}
} catch (Exception ex) {
lock (stateLock) {
state = GClientState.Disconnected;
}
OnFatalError(ex);
return(false);
}
return(true);
}
