public async Task Connect()
{
int origin = Interlocked.Exchange(ref _state, _connecting);
if (!(origin == _none || origin == _closed))
{
await Close(false);
throw new InvalidOperationException("This tcp socket client is in invalid state when connecting.");
}
try
{
Clean();
_socket = new Socket(SocketType.Stream, ProtocolType.Tcp);
SetSocketOptions();
if (_localEndPoint != null)
{
_socket.Bind(_localEndPoint);
}
var saea = _saeaPool.Take();
saea.Saea.RemoteEndPoint = _remoteEndPoint;
var socketError = await _socket.ConnectAsync(saea);
if (socketError != SocketError.Success)
{
throw new SocketException((int)socketError);
}
if (_receiveBuffer == default(ArraySegment <byte>))
{
_receiveBuffer = _configuration.BufferManager.BorrowBuffer();
}
_receiveBufferOffset = 0;
if (Interlocked.CompareExchange(ref _state, _connected, _connecting) != _connecting)
{
await Close(false);
throw new InvalidOperationException("This tcp socket client is in invalid state when connected.");
}
Loger.DebugFormat("Connected to server [{0}] with dispatcher [{1}] on [{2}].",
this.RemoteEndPoint,
_dispatcher.GetType().Name,
DateTime.UtcNow.ToString(@"yyyy-MM-dd HH:mm:ss.fffffff"));
bool isErrorOccurredInUserSide = false;
try
{
await _dispatcher.OnServerConnected(this);
}
catch (Exception ex)
{
isErrorOccurredInUserSide = true;
HandleUserSideError(ex);
}
if (!isErrorOccurredInUserSide)
{
Task.Factory.StartNew(async() =>
{
await Process();
},
TaskCreationOptions.LongRunning)
.Forget();
}
else
{
await Close();
}
}
catch (Exception ex)
{
Loger.Error(ex.Message, ex);
throw;
}
}
public async Task Connect()
{
int origin = Interlocked.CompareExchange(ref _state, _connecting, _none);
if (origin == _disposed)
{
throw new ObjectDisposedException(GetType().FullName);
}
else if (origin != _none)
{
throw new InvalidOperationException("This tcp socket client has already connected to server.");
}
try
{
_socket = new Socket(SocketType.Stream, ProtocolType.Tcp);
if (_localEndPoint != null)
{
_socket.Bind(_localEndPoint);
}
var saea = _saeaPool.Take();
saea.Saea.RemoteEndPoint = _remoteEndPoint;
var socketError = await _socket.ConnectAsync(saea);
if (socketError != SocketError.Success)
{
throw new SocketException((int)socketError);
}
ConfigureSocket();
_receiveBuffer = _bufferManager.BorrowBuffer();
_receiveBufferOffset = 0;
if (Interlocked.CompareExchange(ref _state, _connected, _connecting) != _connecting)
{
throw new ObjectDisposedException(GetType().FullName);
}
_log.DebugFormat("Connected to server [{0}] with dispatcher [{1}] on [{2}].",
this.RemoteEndPoint,
_dispatcher.GetType().Name,
DateTime.UtcNow.ToString(@"yyyy-MM-dd HH:mm:ss.fffffff"));
bool isErrorOccurredInUserSide = false;
try
{
await _dispatcher.OnServerConnected(this);
}
catch (Exception ex)
{
isErrorOccurredInUserSide = true;
HandleUserSideError(ex);
}
if (!isErrorOccurredInUserSide)
{
Task.Run(async() =>
{
await Process();
})
.Forget();
}
else
{
await Close();
}
}
catch (ObjectDisposedException) { }
catch (Exception ex)
when(ex is TimeoutException)
{
_log.Error(ex.Message, ex);
await Close();
}
}