internal TcpTransceiver(Communicator communicator, Socket fd)
{
_communicator = communicator;
Socket = fd;
try
{
Network.SetBufSize(Socket, _communicator, Transport.TCP);
_desc = Network.SocketToString(Socket);
}
catch (Exception)
{
Socket.CloseNoThrow();
throw;
}
}
public override string ToString()
{
try
{
var sb = new StringBuilder();
if (_incoming)
{
sb.Append("local address = " + Network.LocalAddrToString(Network.GetLocalAddress(Socket)));
if (_peerAddr != null)
{
sb.Append($"\nremote address = {_peerAddr}");
}
}
else
{
sb.Append(Network.SocketToString(Socket));
}
if (MulticastAddress != null)
{
sb.Append($"\nmulticast address = {MulticastAddress}");
}
List <string> interfaces;
if (MulticastAddress == null)
{
interfaces = Network.GetHostsForEndpointExpand(_addr.ToString(), Network.EnableBoth, true);
}
else
{
Debug.Assert(_multicastInterface != null);
interfaces = Network.GetInterfacesForMulticast(_multicastInterface,
Network.GetIPVersion(MulticastAddress.Address));
}
if (interfaces.Count != 0)
{
sb.Append("\nlocal interfaces = ");
sb.Append(string.Join(", ", interfaces));
}
return(sb.ToString());
}
catch (ObjectDisposedException)
{
return("<closed>");
}
}
public async ValueTask InitializeAsync(CancellationToken cancel)
{
if (_addr != null)
{
try
{
// Bind the socket to the source address if one is set.
if (_sourceAddr != null)
{
Socket.Bind(new IPEndPoint(_sourceAddr, 0));
}
// Connect to the server or proxy server.
// TODO: use the cancelable ConnectAsync with 5.0
await Socket.ConnectAsync(_proxy?.Address ?? _addr).WaitAsync(cancel).ConfigureAwait(false);
_desc = Network.SocketToString(Socket, _proxy, _addr);
if (_proxy != null)
{
await _proxy.ConnectAsync(Socket, _addr, cancel).ConfigureAwait(false);
}
}
catch (SocketException) when(cancel.IsCancellationRequested)
{
throw new OperationCanceledException(cancel);
}
catch (SocketException ex) when(ex.SocketErrorCode == SocketError.ConnectionRefused)
{
throw new ConnectionRefusedException(ex);
}
catch (SocketException ex)
{
throw new ConnectFailedException(ex);
}
}
}
