# File lib/spring/server.rb, line 19
    def initialize(options = {})
      @foreground   = options.fetch(:foreground, false)
      @env          = options[:env] || default_env
      @applications = Hash.new { |h, k| h[k] = ApplicationManager.new(k, env) }
      @pidfile      = env.pidfile_path.open('a')
      @mutex        = Mutex.new
    end