Remove instrument! and require thread from AS::Notifications.

activesupport/lib/active_support/notifications.rb

@@ -45,7 +45,7 @@ module ActiveSupport
     class << self
       attr_writer :notifier
       delegate :publish, :subscribe, :to => :notifier
-      delegate :instrument, :instrument!, :to => :instrumenter
+      delegate :instrument, :to => :instrumenter
 
       def notifier
         @notifier ||= Notifier.new

activesupport/lib/active_support/notifications/fanout.rb

@@ -1,5 +1,3 @@
-require 'thread'
-
 module ActiveSupport
   module Notifications
     # This is a default queue implementation that ships with Notifications. It
@@ -21,8 +19,8 @@ module ActiveSupport
         @subscribers.each { |s| s.publish(*args) }
       end
 
+      # This is a sync queue, so there is not waiting.
       def wait
-        sleep(0.05) until @subscribers.all?(&:drained?)
       end
 
       # Used for internal implementation only.

activesupport/lib/active_support/notifications/instrumenter.rb

@@ -20,15 +20,6 @@ module ActiveSupport
         result
       end
 
-      # The same as instrument, but sends the notification even if the yielded
-      # block raises an error.
-      def instrument!(name, payload={})
-        time = Time.now
-        yield(payload) if block_given?
-      ensure
-        @notifier.publish(name, time, Time.now, @id, payload)
-      end
-
       private
         def unique_id
           SecureRandom.hex(10)

activesupport/test/notifications_test.rb

@@ -67,29 +67,13 @@ module Notifications
   end
 
   class InstrumentationTest < TestCase
-    delegate :instrument, :instrument!, :to => ActiveSupport::Notifications
+    delegate :instrument, :to => ActiveSupport::Notifications
 
     def test_instrument_returns_block_result
       assert_equal 2, instrument(:awesome) { 1 + 1 }
       drain
     end
 
-    def test_instrument_with_bang_returns_result_even_on_failure
-      begin
-        instrument!(:awesome, :payload => "notifications") do
-          raise "FAIL"
-        end
-        flunk
-      rescue
-      end
-
-      drain
-
-      assert_equal 1, @events.size
-      assert_equal :awesome, @events.last.name
-      assert_equal Hash[:payload => "notifications"], @events.last.payload
-    end
-
     def test_instrument_yields_the_paylod_for_further_modification
       assert_equal 2, instrument(:awesome) { |p| p[:result] = 1 + 1 }
       drain