public bool StartRead(ref ArraySegment <byte> buffer, ref int offset, AsyncCallback callback, object state)
{
if (!_isConnected)
{
return(_delegate.StartRead(ref buffer, ref offset, callback, state));
}
else if (SslStream == null)
{
throw new ConnectionLostException();
}
Debug.Assert(SslStream.IsAuthenticated);
int packetSize = GetRecvPacketSize(buffer.Count - offset);
try
{
_readCallback = callback;
_readResult = SslStream.BeginRead(buffer.Array, buffer.Offset + offset, packetSize, ReadCompleted, state);
return(_readResult.CompletedSynchronously);
}
catch (IOException ex)
{
if (Network.ConnectionLost(ex))
{
throw new ConnectionLostException(ex);
}
if (Network.Timeout(ex))
{
throw new ConnectionTimeoutException();
}
throw new TransportException(ex);
}
catch (ObjectDisposedException ex)
{
throw new ConnectionLostException(ex);
}
}
