# File lib/spring/env.rb, line 71
    def server_running?
      pidfile = pidfile_path.open('r+')
      !pidfile.flock(File::LOCK_EX | File::LOCK_NB)
    rescue Errno::ENOENT
      false
    ensure
      if pidfile
        pidfile.flock(File::LOCK_UN)
        pidfile.close
      end
    end