diff options
Diffstat (limited to 'actioncable/lib/action_cable/channel/streams.rb')
| -rw-r--r-- | actioncable/lib/action_cable/channel/streams.rb | 34 |
1 files changed, 18 insertions, 16 deletions
diff --git a/actioncable/lib/action_cable/channel/streams.rb b/actioncable/lib/action_cable/channel/streams.rb index b5ffa17f72..3158f30814 100644 --- a/actioncable/lib/action_cable/channel/streams.rb +++ b/actioncable/lib/action_cable/channel/streams.rb @@ -41,22 +41,23 @@ module ActionCable # Example below shows how you can use this to provide performance introspection in the process: # # class ChatChannel < ApplicationCable::Channel - # def subscribed - # @room = Chat::Room[params[:room_number]] + # def subscribed + # @room = Chat::Room[params[:room_number]] # - # stream_for @room, -> (encoded_message) do - # message = ActiveSupport::JSON.decode(encoded_message) + # stream_for @room, -> (encoded_message) do + # message = ActiveSupport::JSON.decode(encoded_message) # - # if message['originated_at'].present? - # elapsed_time = (Time.now.to_f - message['originated_at']).round(2) + # if message['originated_at'].present? + # elapsed_time = (Time.now.to_f - message['originated_at']).round(2) # - # ActiveSupport::Notifications.instrument :performance, measurement: 'Chat.message_delay', value: elapsed_time, action: :timing - # logger.info "Message took #{elapsed_time}s to arrive" - # end + # ActiveSupport::Notifications.instrument :performance, measurement: 'Chat.message_delay', value: elapsed_time, action: :timing + # logger.info "Message took #{elapsed_time}s to arrive" + # end # - # transmit message - # end - # end + # transmit message + # end + # end + # end # # You can stop streaming from all broadcasts by calling #stop_all_streams. module Streams @@ -75,11 +76,11 @@ module ActionCable callback ||= default_stream_callback(broadcasting) streams << [ broadcasting, callback ] - EM.next_tick do - pubsub.subscribe(broadcasting, &callback).callback do |reply| + Concurrent.global_io_executor.post do + pubsub.subscribe(broadcasting, callback, lambda do transmit_subscription_confirmation logger.info "#{self.class.name} is streaming from #{broadcasting}" - end + end) end end @@ -90,9 +91,10 @@ module ActionCable stream_from(broadcasting_for([ channel_name, model ]), callback) end + # Unsubscribes all streams associated with this channel from the pubsub queue. def stop_all_streams streams.each do |broadcasting, callback| - pubsub.unsubscribe_proc broadcasting, callback + pubsub.unsubscribe broadcasting, callback logger.info "#{self.class.name} stopped streaming from #{broadcasting}" end.clear end |