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method

all_listeners_for

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v7.1.3.2 - Show latest stable - 0 notes - Class: ActiveSupport::Notifications::Fanout
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all_listeners_for(name) public

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# File activesupport/lib/active_support/notifications/fanout.rb, line 301
      def all_listeners_for(name)
        # this is correctly done double-checked locking (Concurrent::Map's lookups have volatile semantics)
        @all_listeners_for[name] || synchronize do
          # use synchronisation when accessing @subscribers
          @all_listeners_for[name] ||=
            @string_subscribers[name] + @other_subscribers.select { |s| s.subscribed_to?(name) }
        end
      end
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