# File lib/config_file.rb, line 21
  def initialize(filename, default_config=nil)
    @filename = Pathname.new(filename)
    @default_config = default_config.freeze
    __load__
  end

# File lib/config_file.rb, line 27
  def __load__(&block)
    config = nil
    if @filename.exist?
      @filename.open do |f|
        f.flock(File::LOCK_EX)
        config = real_load(f)
        f.flock(File::LOCK_UN)
      end
      block ? block[config] : check_config(config)
      config.freeze
    else
      if $VERBOSE
        Kernel.warn('warning: use default configuration because no ' +
                    'configuration file has been found')
      end
      config = @default_config
    end
    __setobj__(config)
  end

# File lib/config_file.rb, line 49
  def check_config(config)
  end

# File lib/config_file.rb, line 54
  def real_load(io)
    YAML::load(io)
  end