Class: Appsignal::Hooks::CelluloidHook

Inherits:
Hook
  • Object
show all
Defined in:
lib/appsignal/hooks/celluloid.rb

Instance Method Summary collapse

Methods inherited from Hook

#installed?, register, #try_to_install

Instance Method Details

#dependencies_present?Boolean

Returns:

  • (Boolean)

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# File 'lib/appsignal/hooks/celluloid.rb', line 6

def dependencies_present?
  defined?(::Celluloid)
end

#installObject


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# File 'lib/appsignal/hooks/celluloid.rb', line 10

def install
  # Some versions of Celluloid have race conditions while exiting
  # that can result in a dead lock. We stop appsignal before shutting
  # down Celluloid so we're sure our thread does not aggravate this situation.
  # This way we also make sure any outstanding transactions get flushed.

  ::Celluloid.class_eval do
    class << self
      alias shutdown_without_appsignal shutdown

      def shutdown
        Appsignal.stop('celluloid')
        shutdown_without_appsignal
      end
    end
  end
end