/// <summary>
/// Método base para recebimento dos dados.
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
private CommunicationResult ReceiveBase(out byte[] data)
{
CommunicationResult receiveFailed = CommunicationResult.ReceiveFailed;
data = null;
try
{
lock (_tcpLock)
{
if (_tcpClient == null)
{
receiveFailed = CommunicationResult.Closed;
}
else
{
_tcpClient.Client.Blocking = true;
receiveFailed = _reader.ReadStream(this.Stream, out data);
}
}
}
catch (System.Net.Sockets.SocketException exception)
{
receiveFailed = new CommunicationResult(exception.ErrorCode);
}
catch (ObjectDisposedException)
{
receiveFailed = CommunicationResult.Closed;
}
if ((receiveFailed != 0) && (base.RemoteEndPoint != null) && data != null)
{
LogAccessor.Log.Verbose("<TCP>Received from [{0}]: {1}", new object[] {
base.RemoteEndPoint.ToString(),
BinaryTransformer.GetString(data, 0, data.Length)
});
}
return(receiveFailed);
}
/// <summary>
/// Envia os dados.
/// </summary>
/// <param name="data">Dados que serão enviados.</param>
/// <param name="size">Tamanho dos dados.</param>
/// <returns></returns>
public override CommunicationResult Send(byte[] data, int size)
{
CommunicationResult success = CommunicationResult.Success;
try
{
lock (_tcpLock)
{
if (Stream != null)
{
Stream.Write(data, 0, size);
Stream.Flush();
}
else
{
success = CommunicationResult.Closed;
}
}
if ((success != 0) && (base.RemoteEndPoint != null))
{
LogAccessor.Log.Verbose("<TCP>Sent to [{0}]: {1}", base.RemoteEndPoint.ToString(), BinaryTransformer.GetString(data, 0, size));
}
}
catch (ArgumentNullException)
{
return(this.HandleResult(CommunicationResult.SendFailed));
}
catch (ArgumentOutOfRangeException)
{
return(this.HandleResult(CommunicationResult.SendFailed));
}
catch (ArgumentException)
{
return(this.HandleResult(CommunicationResult.SendFailed));
}
catch (NotSupportedException)
{
return(this.HandleResult(CommunicationResult.SendFailed));
}
catch (ObjectDisposedException)
{
return(this.HandleResult(CommunicationResult.Closed));
}
catch (System.IO.IOException exception)
{
var innerException = exception.InnerException as System.Net.Sockets.SocketException;
if (innerException != null)
{
return(HandleResult(new CommunicationResult(innerException.ErrorCode)));
}
return(HandleResult(CommunicationResult.Closed));
}
return(HandleResult(success));
}
/// <summary>
/// Recebe os dados.
/// </summary>
/// <param name="data">Buffer dos dados recebidos.</param>
/// <param name="expectedSize">Tamanho esperado.</param>
/// <returns></returns>
public CommunicationResult Receive(out byte[] data, int expectedSize)
{
CommunicationResult receiveFailed = CommunicationResult.ReceiveFailed;
lock (_tcpLock)
receiveFailed = _reader.ReadStream(this.Stream, out data, expectedSize);
if (receiveFailed == 0)
{
return(HandleResult(receiveFailed));
}
if (base.RemoteEndPoint != null)
{
LogAccessor.Log.Verbose("<TCP>Received from [{0}]: {1}", base.RemoteEndPoint.ToString(), BinaryTransformer.GetString(data, 0, data.Length));
}
return(receiveFailed);
}
/// <summary>
/// Lê o buffer.
/// </summary>
private void ReadBuffer()
{
object obj2;
while (true)
{
System.Threading.Monitor.Enter(obj2 = this._actionLock);
try
{
byte[] buffer;
if (_reader.ReadBuffer(out buffer))
{
if (buffer != null)
{
if (base.RemoteEndPoint != null)
{
LogAccessor.Log.Verbose("<TCP>Received from [{0}]: {1}", base.RemoteEndPoint.ToString(), BinaryTransformer.GetString(buffer, 0, buffer.Length));
}
try
{
if (_actionCallBack != null)
{
_actionCallBack(buffer);
}
}
catch (NullReferenceException)
{
LogAccessor.Log.Verbose("<TCP>ReadBuffer aborted (null action).");
return;
}
catch (ObjectDisposedException)
{
return;
}
}
continue;
}
break;
}
finally
{
System.Threading.Monitor.Exit(obj2);
}
}
}
/// <summary>
/// Método acionado quando dados forem recebidos da stream da conexão.
/// </summary>
/// <param name="result"></param>
private void TcpStreamReceived(IAsyncResult result)
{
CommunicationResult success = CommunicationResult.Success;
try
{
int length = 0;
try
{
lock (_tcpLock)
{
_receiving = false;
if (Stream == null)
{
return;
}
length = Stream.EndRead(result);
if (length == 0)
{
if (base.RemoteEndPoint != null)
{
LogAccessor.Log.Verbose("<TCP>Connection closed by remote host [{0}]", new object[] {
base.RemoteEndPoint.ToString()
});
}
success = CommunicationResult.Closed;
return;
}
TcpCommunicationState asyncState = (TcpCommunicationState)result.AsyncState;
if (_actionCallBack != null)
{
byte[] data = asyncState.GetData();
LogAccessor.Log.Verbose("<TCP> Packet: {0}", new object[] {
BinaryTransformer.GetString(data, 0, length, Encoding.ASCII)
});
success = _reader.RegisterBuffer(data, length);
}
}
}
catch (ArgumentNullException)
{
success = CommunicationResult.ReceiveFailed;
return;
}
catch (ArgumentException)
{
success = CommunicationResult.ReceiveFailed;
return;
}
catch (System.IO.IOException)
{
BeginReceive(_actionCallBack);
return;
}
catch (ObjectDisposedException)
{
return;
}
if (success != 0)
{
ReadBuffer();
BeginReceive(_actionCallBack);
}
}
finally
{
HandleResult(success);
}
}