restore

# File lib/cgi/session.rb, line 390
      def restore
        unless @hash
          @hash = {}
          begin
            lockf = File.open(@path+".lock", "r")
            lockf.flock File::LOCK_SH
            f = File.open(@path, 'r')
            for line in f
              line.chomp!
              k, v = line.split('=',2)
              @hash[CGI::unescape(k)] = CGI::unescape(v)
            end
          ensure
            f.close unless f.nil?
            lockf.close if lockf
          end
        end
        @hash
      end