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Module: RactorLocalSingleton::RactorLocalSingletonClassMethods

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Instance Chain:
self, ::Singleton::SingletonClassMethods
Defined in: lib/singleton.rb

Instance Method Summary

::Singleton::SingletonClassMethods - Included

#_load

By default calls instance().
#clone, #instance, #inherited, #set_instance, #set_mutex

Instance Method Details

#instance

[ GitHub ] 

  


# File 'lib/singleton.rb', line 204



def instance
  set_mutex(Thread::Mutex.new) if Ractor.current[mutex_key].nil?
  return Ractor.current[instance_key] if Ractor.current[instance_key]
  Ractor.current[mutex_key].synchronize {
    return Ractor.current[instance_key] if Ractor.current[instance_key]
    set_instance(new())
  }
  Ractor.current[instance_key]
end


  








  

    #instance_key   (private)
  

  [ GitHub ]


  

  


# File 'lib/singleton.rb', line 216



def instance_key
  :"__RactorLocalSingleton_instance_with_class_id_#{object_id}__"
end


  








  

    #mutex_key   (private)
  

  [ GitHub ]


  

  


# File 'lib/singleton.rb', line 220



def mutex_key
  :"__RactorLocalSingleton_mutex_with_class_id_#{object_id}__"
end


  








  

    #set_instance(val)   (private)
  

  [ GitHub ]


  

  


# File 'lib/singleton.rb', line 224



def set_instance(val)
  Ractor.current[instance_key] = val
end


  








  

    #set_mutex(val)   (private)
  

  [ GitHub ]


  

  


# File 'lib/singleton.rb', line 228



def set_mutex(val)
  Ractor.current[mutex_key] = val
end