Class: ActionCable::Connection::StreamEventLoop

Inherits:
Object
  • Object
show all
Defined in:
lib/action_cable/connection/stream_event_loop.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ StreamEventLoop

Returns a new instance of StreamEventLoop.



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# File 'lib/action_cable/connection/stream_event_loop.rb', line 8

def initialize
  @nio = @executor = @thread = nil
  @map = {}
  @stopping = false
  @todo = Queue.new

  @spawn_mutex = Mutex.new
end

Instance Method Details

#attach(io, stream) ⇒ Object 



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# File 'lib/action_cable/connection/stream_event_loop.rb', line 28

def attach(io, stream)
  @todo << lambda do
    @map[io] = @nio.register(io, :r)
    @map[io].value = stream
  end
  wakeup
end

#detach(io, stream) ⇒ Object 



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# File 'lib/action_cable/connection/stream_event_loop.rb', line 36

def detach(io, stream)
  @todo << lambda do
    @nio.deregister io
    @map.delete io
    io.close
  end
  wakeup
end

#post(task = nil, &block) ⇒ Object 



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# File 'lib/action_cable/connection/stream_event_loop.rb', line 21

def post(task = nil, &block)
  task ||= block

  spawn
  @executor << task
end

#stop ⇒ Object 



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# File 'lib/action_cable/connection/stream_event_loop.rb', line 54

def stop
  @stopping = true
  wakeup if @nio
end

#timer(interval, &block) ⇒ Object 



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# File 'lib/action_cable/connection/stream_event_loop.rb', line 17

def timer(interval, &block)
  Concurrent::TimerTask.new(execution_interval: interval, &block).tap(&:execute)
end

#writes_pending(io) ⇒ Object 



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# File 'lib/action_cable/connection/stream_event_loop.rb', line 45

def writes_pending(io)
  @todo << lambda do
    if monitor = @map[io]
      monitor.interests = :rw
    end
  end
  wakeup
end