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# FIXME: Cargo culted fix from https://github.com/celluloid/celluloid-pool/issues/10
require 'celluloid/current'
require 'em-hiredis'
module ActionCable
module Server
# A singleton ActionCable::Server instance is available via ActionCable.server. It's used by the rack process that starts the cable server, but
# also by the user to reach the RemoteConnections instead for finding and disconnecting connections across all servers.
#
# Also, this is the server instance used for broadcasting. See Broadcasting for details.
class Base
include ActionCable::Server::Broadcasting
include ActionCable::Server::Connections
cattr_accessor(:config, instance_accessor: true) { ActionCable::Server::Configuration.new }
def self.logger; config.logger; end
delegate :logger, to: :config
def initialize
end
# Called by rack to setup the server.
def call(env)
setup_heartbeat_timer
config.connection_class.new(self, env).process
end
# Disconnect all the connections identified by `identifiers` on this server or any others via RemoteConnections.
def disconnect(identifiers)
remote_connections.where(identifiers).disconnect
end
# Gateway to RemoteConnections. See that class for details.
def remote_connections
@remote_connections ||= RemoteConnections.new(self)
end
# The thread worker pool for handling all the connection work on this server. Default size is set by config.worker_pool_size.
def worker_pool
@worker_pool ||= ActionCable::Server::Worker.pool(size: config.worker_pool_size)
end
# Requires and returns a hash of all the channel class constants keyed by name.
def channel_classes
@channel_classes ||= begin
config.channel_paths.each { |channel_path| require channel_path }
config.channel_class_names.each_with_object({}) { |name, hash| hash[name] = name.constantize }
end
end
# The redis pubsub adapter used for all streams/broadcasting.
def pubsub
@pubsub ||= redis.pubsub
end
# The EventMachine Redis instance used by the pubsub adapter.
def redis
@redis ||= EM::Hiredis.connect(config.redis[:url]).tap do |redis|
redis.on(:reconnect_failed) do
logger.info "[ActionCable] Redis reconnect failed."
# logger.info "[ActionCable] Redis reconnected. Closing all the open connections."
# @connections.map &:close
end
end
end
# All the identifiers applied to the connection class associated with this server.
def connection_identifiers
config.connection_class.identifiers
end
end
ActiveSupport.run_load_hooks(:action_cable, Base.config)
end
end
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