class Seahorse::Client::H2::Connection

def connect(endpoint)
  @mutex.synchronize {
    if @status == :ready
      tcp, addr = _tcp_socket(endpoint) 
      debug_output("opening connection to #{endpoint.host}:#{endpoint.port} ...")
      _nonblocking_connect(tcp, addr)
      debug_output("opened")
      @socket = OpenSSL::SSL::SSLSocket.new(tcp, _tls_context)
      @socket.sync_close = true
      @socket.hostname = endpoint.host
      debug_output("starting TLS for #{endpoint.host}:#{endpoint.port} ...")
      @socket.connect
      debug_output("TLS established")
      _register_h2_callbacks
      @status = :active
    elsif @status == :closed
      msg = "Async Client HTTP2 Connection is closed, you may"\
        " use #new_connection to create a new HTTP2 Connection for this client"
      raise Http2ConnectionClosedError.new(msg)
    end
  }
end