Top Level Namespace

Defined Under Namespace

Modules: RJR Classes: Class, CountingSemaphore, Object

Constant Summary collapse

Semaphore = 
CountingSemaphore

Instance Method Summary collapse

Instance Method Details

#dispatch_rjr_inspect(dispatcher) ⇒ Object

Add inspection methods to specified dispatcher



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# File 'lib/rjr/inspect.rb', line 49

def dispatch_rjr_inspect(dispatcher)
  # Retrieve all the dispatches this node served matching the specified criteri
  dispatcher.handle "rjr::dispatches" do |filter|
    select_stats(dispatcher, *filter) 
  end

  # Retrieve the number of dispatches this node served matching the specified criteria
  dispatcher.handle "rjr::num_dispatches" do |filter|
    select_stats(dispatcher, *filter).size
  end

  # Retrieve the internal status of this node
  dispatcher.handle "rjr::status" do
    nodes = []
    ObjectSpace.each_object RJR::Node do |node|
      nodes << node.to_s
    end

    {
      # nodes
      :nodes => nodes,

      # dispatcher
      :dispatcher => {
        :requests => dispatcher.requests.size,
        :handlers =>
          dispatcher.handlers.keys,
          #dispatcher.handlers.collect { |k,v|
          #  [k, v.source_location] },
        :environments => dispatcher.environments
      },

      # event machine
      :event_machine => { :running => EventMachine.reactor_running?,
                          :thread_status =>
                           (RJR::Node.em && RJR::Node.em.reactor_thread) ?
                                RJR::Node.em.reactor_thread.status : nil,
                          :connections => EventMachine.connection_count },

      # thread pool
      :thread_pool => { :running => RJR::Node.tp ? RJR::Node.tp.running? : nil }
    }
  end

  #:log =>
  #  lambda {},
end

#gen_uuid ⇒ Object

Return a random uuid



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# File 'lib/rjr/common.rb', line 11

def gen_uuid
  ["%02x"*4, "%02x"*2, "%02x"*2, "%02x"*2, "%02x"*6].join("-") %
      Array.new(16) {|x| rand(0xff) }
end

#select_stats(dispatcher, *filter) ⇒ Object

Helper method to process user params / select stats from a dispatcher



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# File 'lib/rjr/inspect.rb', line 23

def select_stats(dispatcher, *filter)
  lf = []
  while q = filter.shift
    lf << 
      case q
      when 'on_node'    then
        n = filter.shift 
        lambda { |req| req.rjr_node_type.to_s == n}

      when "for_method" then
        m = filter.shift
        lambda { |req| req.rjr_method == m}

      when 'successful' then
        lambda { |req| req.result.success }

      when 'failed'     then
        lambda { |req| req.result.failed  }

      end
  end

  dispatcher.requests.select { |ds| lf.all? { |lfi| lfi.call(ds) } }
end

#sputs(*args) ⇒ Object

Serialized puts, uses logger lock to serialize puts output



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# File 'lib/rjr/common.rb', line 126

def sputs(*args)
  ::RJR::Logger.safe_exec {
    puts *args
  }
end