Module: ConcurrentRuby::Chain

Defined in:
lib/new_relic/agent/instrumentation/concurrent_ruby/chain.rb

Class Method Summary collapse

Class Method Details

.instrument! ⇒ Object 



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# File 'lib/new_relic/agent/instrumentation/concurrent_ruby/chain.rb', line 7

def self.instrument!
  ::Concurrent::ThreadPoolExecutor.class_eval do
    include NewRelic::Agent::Instrumentation::ConcurrentRuby

    alias_method(:post_without_new_relic, :post)

    def post(*args, &task)
      return post_without_new_relic(*args, &task) unless NewRelic::Agent::Tracer.tracing_enabled?

      traced_task = add_task_tracing(&task)
      post_without_new_relic(*args, &traced_task)
    end
  end

  [::Concurrent::Promises.const_get(:'InternalStates')::Rejected,
    ::Concurrent::Promises.const_get(:'InternalStates')::PartiallyRejected].each do |klass|
    klass.class_eval do
      alias_method(:initialize_without_new_relic, :initialize)

      # Uses args.last to record the error becuase the methods that this will monkey patch
      # look like: initialize(reason) & initialize(value, reason)
      def initialize(*args)
        NewRelic::Agent.notice_error(args.last) if args.last.is_a?(Exception)
        initialize_without_new_relic(*args)
      end
    end
  end
end