class HTTP::Connection

def initialize(req, options)
  @persistent           = options.persistent?
  @keep_alive_timeout   = options.keep_alive_timeout.to_f
  @pending_request      = false
  @pending_response     = false
  @failed_proxy_connect = false
  @buffer               = "".b
  @parser = Response::Parser.new
  @socket = options.timeout_class.new(options.timeout_options)
  @socket.connect(options.socket_class, req.socket_host, req.socket_port, options.nodelay)
  send_proxy_connect_request(req)
  start_tls(req, options)
  reset_timer
rescue IOError, SocketError, SystemCallError => e
  raise ConnectionError, "failed to connect: #{e}", e.backtrace
rescue TimeoutError
  close
  raise
end