gistfile1.txt

module ActiveSupport
  module Notifications
    autoload :Instrumenter, 'active_support/notifications/instrumenter'
    autoload :Event, 'active_support/notifications/instrumenter'
    autoload :Fanout, 'active_support/notifications/fanout'

    class << self
      attr_writer :notifier
      delegate :publish, :subscribe, :to => :notifier
      delegate :instrument, :to => :instrumenter

      def notifier
        @notifier ||= Notifier.new
      end

      def instrumenter
        Thread.current[:"instrumentation_#{notifier.object_id}"] ||= Instrumenter.new(notifier)
      end
    end
  end
end