Net::HTTPGenericRequest#wait_for_continue

# File tmp/rubies/ruby-3.2.0/lib/net/http/generic_request.rb, line 310
def wait_for_continue(sock, ver)
  if ver >= '1.1' and @header['expect'] and
      @header['expect'].include?('100-continue')
    if sock.io.to_io.wait_readable(sock.continue_timeout)
      res = Net::HTTPResponse.read_new(sock)
      unless res.kind_of?(Net::HTTPContinue)
        res.decode_content = @decode_content
        throw :response, res
      end
    end
  end
end