1 files changed, 0 insertions, 89 deletions
diff --git a/actioncable/lib/action_cable/subscription_adapter/evented_redis.rb b/actioncable/lib/action_cable/subscription_adapter/evented_redis.rb
deleted file mode 100644
index 1227c793a9..0000000000
--- a/actioncable/lib/action_cable/subscription_adapter/evented_redis.rb
+++ /dev/null
@@ -1,89 +0,0 @@
-# frozen_string_literal: true
-
-require "thread"
-
-gem "em-hiredis", "~> 0.3.0"
-gem "redis", ">= 3", "< 5"
-require "em-hiredis"
-require "redis"
-
-EventMachine.epoll  if EventMachine.epoll?
-EventMachine.kqueue if EventMachine.kqueue?
-
-module ActionCable
-  module SubscriptionAdapter
-    class EventedRedis < Base # :nodoc:
-      prepend ChannelPrefix
-
-      @@mutex = Mutex.new
-
-      # Overwrite this factory method for EventMachine Redis connections if you want to use a different Redis connection library than EM::Hiredis.
-      # This is needed, for example, when using Makara proxies for distributed Redis.
-      cattr_accessor :em_redis_connector, default: ->(config) { EM::Hiredis.connect(config[:url]) }
-
-      # Overwrite this factory method for Redis connections if you want to use a different Redis connection library than Redis.
-      # This is needed, for example, when using Makara proxies for distributed Redis.
-      cattr_accessor :redis_connector, default: ->(config) { ::Redis.new(url: config[:url]) }
-
-      def initialize(*)
-        ActiveSupport::Deprecation.warn(<<-MSG.squish)
-          The "evented_redis" subscription adapter is deprecated and
-          will be removed in Rails 5.2. Please use the "redis" adapter
-          instead.
-        MSG
-
-        super
-        @redis_connection_for_broadcasts = @redis_connection_for_subscriptions = nil
-      end
-
-      def broadcast(channel, payload)
-        redis_connection_for_broadcasts.publish(channel, payload)
-      end
-
-      def subscribe(channel, message_callback, success_callback = nil)
-        redis_connection_for_subscriptions.pubsub.subscribe(channel, &message_callback).tap do |result|
-          result.callback { |reply| success_callback.call } if success_callback
-        end
-      end
-
-      def unsubscribe(channel, message_callback)
-        redis_connection_for_subscriptions.pubsub.unsubscribe_proc(channel, message_callback)
-      end
-
-      def shutdown
-        redis_connection_for_subscriptions.pubsub.close_connection
-        @redis_connection_for_subscriptions = nil
-      end
-
-      private
-        def redis_connection_for_subscriptions
-          ensure_reactor_running
-          @redis_connection_for_subscriptions || @server.mutex.synchronize do
-            @redis_connection_for_subscriptions ||= self.class.em_redis_connector.call(@server.config.cable).tap do |redis|
-              redis.on(:reconnect_failed) do
-                @logger.error "[ActionCable] Redis reconnect failed."
-              end
-
-              redis.on(:failed) do
-                @logger.error "[ActionCable] Redis connection has failed."
-              end
-            end
-          end
-        end
-
-        def redis_connection_for_broadcasts
-          @redis_connection_for_broadcasts || @server.mutex.synchronize do
-            @redis_connection_for_broadcasts ||= self.class.redis_connector.call(@server.config.cable)
-          end
-        end
-
-        def ensure_reactor_running
-          return if EventMachine.reactor_running? && EventMachine.reactor_thread
-          @@mutex.synchronize do
-            Thread.new { EventMachine.run } unless EventMachine.reactor_running?
-            Thread.pass until EventMachine.reactor_running? && EventMachine.reactor_thread
-          end
-        end
-    end
-  end
-end