method
listen
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Class: Listener
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listen()
public
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# File actioncable/lib/action_cable/subscription_adapter/postgresql.rb, line 62 def listen @adapter.with_connection do |pg_conn| catch :shutdown do loop do until @queue.empty? action, channel, callback = @queue.pop(true) case action when :listen pg_conn.exec("LISTEN #{pg_conn.escape_identifier channel}") @event_loop.post(&callback) if callback when :unlisten pg_conn.exec("UNLISTEN #{pg_conn.escape_identifier channel}") when :shutdown throw :shutdown end end pg_conn.wait_for_notify(1) do |chan, pid, message| broadcast(chan, message) end end end end end