    # File lib/rack/handler/mongrel.rb, line 44
          def self.valid_options
            environment  = ENV['RACK_ENV'] || 'development'
            default_host = environment == 'development' ? 'localhost' : '0.0.0.0'

            {
              "Host=HOST" => "Hostname to listen on (default: #{default_host})",
              "Port=PORT" => "Port to listen on (default: 8080)",
              "Processors=N" => "Number of concurrent processors to accept (default: 950)",
              "Timeout=N" => "Time before a request is dropped for inactivity (default: 60)",
              "Throttle=N" => "Throttle time between socket.accept calls in hundredths of a second (default: 0)",
            }
          end