public void finishWrite(Buffer buf)
{
Debug.Assert(_writeEventArgs != null);
if (_fd == null)
{
buf.b.position(buf.size()); // Assume all the data was sent for at-most-once semantics.
_writeEventArgs = null;
return;
}
if (!_incoming && _state < StateConnected)
{
if (_writeEventArgs.SocketError != SocketError.Success)
{
SocketException ex = new SocketException((int)_writeEventArgs.SocketError);
if (Network.connectionRefused(ex))
{
throw new Ice.ConnectionRefusedException(ex);
}
else
{
throw new Ice.ConnectFailedException(ex);
}
}
return;
}
int ret;
try
{
if (_writeEventArgs.SocketError != SocketError.Success)
{
throw new SocketException((int)_writeEventArgs.SocketError);
}
ret = _writeEventArgs.BytesTransferred;
}
catch (SocketException ex)
{
if (Network.connectionLost(ex))
{
throw new Ice.ConnectionLostException(ex);
}
else
{
throw new Ice.SocketException(ex);
}
}
if (ret == 0)
{
throw new Ice.ConnectionLostException();
}
Debug.Assert(ret > 0);
Debug.Assert(ret == buf.b.limit());
buf.b.position(buf.b.position() + ret);
}
public int connect(Buffer readBuffer, Buffer writeBuffer, ref bool moreData)
{
if (_state == StateNeedConnect)
{
_state = StateConnectPending;
return(SocketOperation.Connect);
}
else if (_state <= StateConnectPending)
{
Debug.Assert(_writeEventArgs != null);
if (_writeEventArgs.SocketError != SocketError.Success)
{
SocketException ex = new SocketException((int)_writeEventArgs.SocketError);
if (Network.connectionRefused(ex))
{
throw new Ice.ConnectionRefusedException(ex);
}
else
{
throw new Ice.ConnectFailedException(ex);
}
}
Debug.Assert(_fd != null);
_desc = Network.fdToString(_fd, _proxy, _addr);
_state = _proxy != null ? StateProxyWrite : StateConnected;
}
if (_state == StateProxyWrite)
{
Debug.Assert(_proxy != null);
Debug.Assert(_addr != null);
_proxy.beginWrite(_addr, writeBuffer);
return(SocketOperation.Write);
}
else if (_state == StateProxyRead)
{
Debug.Assert(_proxy != null);
_proxy.beginRead(readBuffer);
return(SocketOperation.Read);
}
else if (_state == StateProxyConnected)
{
Debug.Assert(_proxy != null);
_proxy.finish(readBuffer, writeBuffer);
readBuffer.clear();
writeBuffer.clear();
_state = StateConnected;
}
Debug.Assert(_state == StateConnected);
return(SocketOperation.None);
}
public int initialize()
{
try
{
if (_state == StateNeedConnect)
{
_state = StateConnectPending;
return(SocketOperation.Connect);
}
else if (_state <= StateConnectPending)
{
#if ICE_SOCKET_ASYNC_API
if (_writeEventArgs.SocketError != SocketError.Success)
{
SocketException ex = new SocketException((int)_writeEventArgs.SocketError);
if (Network.connectionRefused(ex))
{
throw new Ice.ConnectionRefusedException(ex);
}
else
{
throw new Ice.ConnectFailedException(ex);
}
}
#else
Network.doFinishConnectAsync(_fd, _writeResult);
_writeResult = null;
#endif
_desc = Network.fdToString(_fd, _proxy, _addr);
if (_proxy != null)
{
_state = StateProxyConnectRequest; // Send proxy connect request
return(SocketOperation.Write);
}
_state = StateConnected;
}
else if (_state == StateProxyConnectRequest)
{
_state = StateProxyConnectRequestPending; // Wait for proxy response
return(SocketOperation.Read);
}
else if (_state == StateProxyConnectRequestPending)
{
_state = StateConnected;
}
}
catch (Ice.LocalException ex)
{
if (_traceLevels.network >= 2)
{
System.Text.StringBuilder s = new System.Text.StringBuilder();
s.Append("failed to establish tcp connection\n");
s.Append(Network.fdToString(_fd, _proxy, _addr));
s.Append("\n");
s.Append(ex.ToString());
_logger.trace(_traceLevels.networkCat, s.ToString());
}
throw;
}
Debug.Assert(_state == StateConnected);
if (_traceLevels.network >= 1)
{
string s = "tcp connection established\n" + _desc;
_logger.trace(_traceLevels.networkCat, s);
}
return(SocketOperation.None);
}
public void finishRead(Buffer buf)
{
if (_fd == null)
{
return;
}
int ret;
try
{
if (_readEventArgs.SocketError != SocketError.Success)
{
throw new SocketException((int)_readEventArgs.SocketError);
}
ret = _readEventArgs.BytesTransferred;
if (_state != StateConnected)
{
_peerAddr = _readEventArgs.RemoteEndPoint;
}
}
catch (SocketException ex)
{
if (Network.recvTruncated(ex))
{
// The message was truncated and the whole buffer is filled. We ignore
// this error here, it will be detected at the connection level when
// the Ice message size is checked against the buffer size.
ret = buf.size();
}
else
{
if (Network.connectionLost(ex))
{
throw new Ice.ConnectionLostException(ex);
}
if (Network.connectionRefused(ex))
{
throw new Ice.ConnectionRefusedException(ex);
}
else
{
throw new Ice.SocketException(ex);
}
}
}
if (ret == 0)
{
throw new Ice.ConnectionLostException();
}
Debug.Assert(ret > 0);
if (_state == StateNeedConnect)
{
Debug.Assert(_incoming);
//
// If we must connect, then we connect to the first peer that
// sends us a packet.
//
bool connected = !_fd.ConnectAsync(_readEventArgs);
Debug.Assert(connected);
_state = StateConnected; // We're connected now
if (_instance.traceLevel() >= 1)
{
string s = "connected " + protocol() + " socket\n" + ToString();
_instance.logger().trace(_instance.traceCategory(), s);
}
}
buf.resize(ret, true);
buf.b.position(ret);
}
public void finishWrite(Buffer buf)
{
if (_fd == null)
{
buf.b.position(buf.size()); // Assume all the data was sent for at-most-once semantics.
#if ICE_SOCKET_ASYNC_API
_writeEventArgs = null;
#else
_writeResult = null;
#endif
return;
}
if (!_incoming && _state < StateConnected)
{
#if ICE_SOCKET_ASYNC_API
if (_writeEventArgs.SocketError != SocketError.Success)
{
SocketException ex = new SocketException((int)_writeEventArgs.SocketError);
if (Network.connectionRefused(ex))
{
throw new Ice.ConnectionRefusedException(ex);
}
else
{
throw new Ice.ConnectFailedException(ex);
}
}
#else
Debug.Assert(_writeResult != null);
Network.doFinishConnectAsync(_fd, _writeResult);
_writeResult = null;
#endif
return;
}
int ret;
try
{
#if ICE_SOCKET_ASYNC_API
if (_writeEventArgs.SocketError != SocketError.Success)
{
throw new SocketException((int)_writeEventArgs.SocketError);
}
ret = _writeEventArgs.BytesTransferred;
#else
if (_state == StateConnected)
{
ret = _fd.EndSend(_writeResult);
}
else
{
ret = _fd.EndSendTo(_writeResult);
}
_writeResult = null;
#endif
}
catch (SocketException ex)
{
if (Network.connectionLost(ex))
{
throw new Ice.ConnectionLostException(ex);
}
else
{
throw new Ice.SocketException(ex);
}
}
if (ret == 0)
{
throw new Ice.ConnectionLostException();
}
Debug.Assert(ret > 0);
if (_traceLevels.network >= 3)
{
string s = "sent " + ret + " bytes via udp\n" + ToString();
_logger.trace(_traceLevels.networkCat, s);
}
if (_stats != null)
{
#pragma warning disable 618
_stats.bytesSent(type(), ret);
#pragma warning restore 618
}
Debug.Assert(ret == buf.b.limit());
buf.b.position(buf.b.position() + ret);
}
public void finishRead(Buffer buf)
{
if (_fd == null)
{
return;
}
int ret;
try
{
#if ICE_SOCKET_ASYNC_API
if (_readEventArgs.SocketError != SocketError.Success)
{
throw new SocketException((int)_readEventArgs.SocketError);
}
ret = _readEventArgs.BytesTransferred;
if (_state != StateConnected)
{
_peerAddr = _readEventArgs.RemoteEndPoint;
}
#else
Debug.Assert(_readResult != null);
if (_state == StateConnected)
{
ret = _fd.EndReceive(_readResult);
}
else
{
EndPoint peerAddr = _peerAddr;
if (_addr.AddressFamily == AddressFamily.InterNetwork)
{
peerAddr = new IPEndPoint(IPAddress.Any, 0);
}
else
{
Debug.Assert(_addr.AddressFamily == AddressFamily.InterNetworkV6);
peerAddr = new IPEndPoint(IPAddress.IPv6Any, 0);
}
ret = _fd.EndReceiveFrom(_readResult, ref peerAddr);
_peerAddr = (IPEndPoint)peerAddr;
}
_readResult = null;
#endif
}
catch (SocketException ex)
{
if (Network.recvTruncated(ex))
{
// The message was truncated and the whole buffer is filled. We ignore
// this error here, it will be detected at the connection level when
// the Ice message size is checked against the buffer size.
ret = buf.size();
}
else
{
if (Network.connectionLost(ex))
{
throw new Ice.ConnectionLostException(ex);
}
if (Network.connectionRefused(ex))
{
throw new Ice.ConnectionRefusedException(ex);
}
else
{
throw new Ice.SocketException(ex);
}
}
}
if (ret == 0)
{
throw new Ice.ConnectionLostException();
}
Debug.Assert(ret > 0);
if (_state == StateNeedConnect)
{
Debug.Assert(_incoming);
//
// If we must connect, then we connect to the first peer that
// sends us a packet.
//
#if ICE_SOCKET_ASYNC_API
bool connected = !_fd.ConnectAsync(_readEventArgs);
#else
bool connected = Network.doConnect(_fd, _peerAddr);
#endif
Debug.Assert(connected);
_state = StateConnected; // We're connected now
if (_traceLevels.network >= 1)
{
string s = "connected udp socket\n" + ToString();
_logger.trace(_traceLevels.networkCat, s);
}
}
if (_traceLevels.network >= 3)
{
string s = "received " + ret + " bytes via udp\n" + ToString();
_logger.trace(_traceLevels.networkCat, s);
}
if (_stats != null)
{
#pragma warning disable 618
_stats.bytesReceived(type(), ret);
#pragma warning restore 618
}
buf.resize(ret, true);
buf.b.position(ret);
}