method
listeners_for
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Class: ActiveSupport::Notifications::Fanout
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listeners_for(name)
public
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# File activesupport/lib/active_support/notifications/fanout.rb, line 108 def listeners_for(name) # this is correctly done double-checked locking (Concurrent::Map's lookups have volatile semantics) @listeners_for[name] || synchronize do # use synchronisation when accessing @subscribers @listeners_for[name] ||= @string_subscribers[name] + @other_subscribers.select { |s| s.subscribed_to?(name) } end end