add_introspection

# File lib/xmlrpc/server.rb, line 236
  def add_introspection
    add_handler("system.listMethods",%(array), "List methods available on this XML-RPC server") do
      methods = []
      @handler.each do |name, obj|
        if obj.kind_of? Proc
          methods << name
        else
          obj.class.public_instance_methods(false).each do |meth|
            methods << "#{name}#{meth}"
          end
        end
      end
      methods
    end

    add_handler("system.methodSignature", %(array string), "Returns method signature") do |meth|
      sigs = []
      @handler.each do |name, obj, sig|
        if obj.kind_of? Proc and sig != nil and name == meth
          if sig[0].kind_of? Array
            # sig contains multiple signatures, e.g. [["array"], ["array", "string"]]
            sig.each {|s| sigs << s}
          else
            # sig is a single signature, e.g. ["array"]
            sigs << sig
          end
        end
      end
      sigs.uniq! || sigs  # remove eventually duplicated signatures
    end

    add_handler("system.methodHelp", %(string string), "Returns help on using this method") do |meth|
      help = nil
      @handler.each do |name, obj, sig, hlp|
        if obj.kind_of? Proc and name == meth
          help = hlp
          break
        end
      end
      help || ""
    end

    self
  end