diff options
| -rw-r--r-- | actioncable/CHANGELOG.md | 4 | ||||
| -rw-r--r-- | actioncable/README.md | 2 | ||||
| -rw-r--r-- | actioncable/lib/action_cable/subscription_adapter/evented_redis.rb | 89 | ||||
| -rw-r--r-- | actioncable/test/subscription_adapter/evented_redis_test.rb | 61 |
4 files changed, 5 insertions, 151 deletions
diff --git a/actioncable/CHANGELOG.md b/actioncable/CHANGELOG.md index 3952887b61..4355c97df0 100644 --- a/actioncable/CHANGELOG.md +++ b/actioncable/CHANGELOG.md @@ -1,3 +1,7 @@ +* Removed deprecated evented redis adapter. + + *Rafael Mendonça França* + * Support redis-rb 4.0. *Jeremy Daer* diff --git a/actioncable/README.md b/actioncable/README.md index 70b39ead57..44fb81478d 100644 --- a/actioncable/README.md +++ b/actioncable/README.md @@ -446,7 +446,7 @@ The WebSocket server doesn't have access to the session, but it has access to th ## Dependencies -Action Cable provides a subscription adapter interface to process its pubsub internals. By default, asynchronous, inline, PostgreSQL, evented Redis, and non-evented Redis adapters are included. The default adapter in new Rails applications is the asynchronous (`async`) adapter. To create your own adapter, you can look at `ActionCable::SubscriptionAdapter::Base` for all methods that must be implemented, and any of the adapters included within Action Cable as example implementations. +Action Cable provides a subscription adapter interface to process its pubsub internals. By default, asynchronous, inline, PostgreSQL, and Redis adapters are included. The default adapter in new Rails applications is the asynchronous (`async`) adapter. To create your own adapter, you can look at `ActionCable::SubscriptionAdapter::Base` for all methods that must be implemented, and any of the adapters included within Action Cable as example implementations. The Ruby side of things is built on top of [websocket-driver](https://github.com/faye/websocket-driver-ruby), [nio4r](https://github.com/celluloid/nio4r), and [concurrent-ruby](https://github.com/ruby-concurrency/concurrent-ruby). 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 diff --git a/actioncable/test/subscription_adapter/evented_redis_test.rb b/actioncable/test/subscription_adapter/evented_redis_test.rb deleted file mode 100644 index e3e0a0c72a..0000000000 --- a/actioncable/test/subscription_adapter/evented_redis_test.rb +++ /dev/null @@ -1,61 +0,0 @@ -# frozen_string_literal: true - -require "test_helper" -require_relative "common" -require_relative "channel_prefix" - -class EventedRedisAdapterTest < ActionCable::TestCase - include CommonSubscriptionAdapterTest - include ChannelPrefixTest - - def setup - assert_deprecated do - super - end - - # em-hiredis is warning-rich - @previous_verbose, $VERBOSE = $VERBOSE, nil - end - - def teardown - super - - # Ensure EM is shut down before we re-enable warnings - EventMachine.reactor_thread.tap do |thread| - EventMachine.stop - thread.join - end - - $VERBOSE = @previous_verbose - end - - def test_slow_eventmachine - require "eventmachine" - require "thread" - - lock = Mutex.new - - EventMachine.singleton_class.class_eval do - alias_method :delayed_initialize_event_machine, :initialize_event_machine - define_method(:initialize_event_machine) do - lock.synchronize do - sleep 0.5 - delayed_initialize_event_machine - end - end - end - - test_basic_broadcast - ensure - lock.synchronize do - EventMachine.singleton_class.class_eval do - alias_method :initialize_event_machine, :delayed_initialize_event_machine - remove_method :delayed_initialize_event_machine - end - end - end - - def cable_config - { adapter: "evented_redis", url: "redis://:password@127.0.0.1:6379/12" } - end -end |