public async Task HandleAsync(TcpClient clientConn, CancellationToken cancellationToken)
{
var ipAddress = IpAddress(clientConn);
_cons.AddOrUpdate(ipAddress, _ => clientConn, (_, _) => clientConn);
try
{
await _executor.IoLoopAsync(clientConn, cancellationToken);
}
catch (Exception e)
{
_logger.LogError(e, $"client({ipAddress})");
}
_cons.TryRemove(ipAddress, out _);
}