diff options
Diffstat (limited to 'actioncable/lib/action_cable/server/worker.rb')
-rw-r--r-- | actioncable/lib/action_cable/server/worker.rb | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/actioncable/lib/action_cable/server/worker.rb b/actioncable/lib/action_cable/server/worker.rb new file mode 100644 index 0000000000..3b6c6d44a1 --- /dev/null +++ b/actioncable/lib/action_cable/server/worker.rb @@ -0,0 +1,71 @@ +require 'active_support/callbacks' +require 'active_support/core_ext/module/attribute_accessors_per_thread' +require 'concurrent' + +module ActionCable + module Server + # Worker used by Server.send_async to do connection work in threads. Only for internal use. + class Worker + include ActiveSupport::Callbacks + + thread_mattr_accessor :connection + define_callbacks :work + include ActiveRecordConnectionManagement + + def initialize(max_size: 5) + @pool = Concurrent::ThreadPoolExecutor.new( + min_threads: 1, + max_threads: max_size, + max_queue: 0, + ) + end + + def async_invoke(receiver, method, *args) + @pool.post do + invoke(receiver, method, *args) + end + end + + def invoke(receiver, method, *args) + begin + self.connection = receiver + + run_callbacks :work do + receiver.send method, *args + end + rescue Exception => e + logger.error "There was an exception - #{e.class}(#{e.message})" + logger.error e.backtrace.join("\n") + + receiver.handle_exception if receiver.respond_to?(:handle_exception) + ensure + self.connection = nil + end + end + + def async_run_periodic_timer(channel, callback) + @pool.post do + run_periodic_timer(channel, callback) + end + end + + def run_periodic_timer(channel, callback) + begin + self.connection = channel.connection + + run_callbacks :work do + callback.respond_to?(:call) ? channel.instance_exec(&callback) : channel.send(callback) + end + ensure + self.connection = nil + end + end + + private + + def logger + ActionCable.server.logger + end + end + end +end |