Class: Rod::Cache::InternalMap

Inherits:
Object
  • Object
show all
Includes:
Singleton
Defined in:
lib/rod/cache.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ InternalMap

Returns a new instance of InternalMap.



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# File 'lib/rod/cache.rb', line 9

def initialize
  @mutex = Mutex.new
  @object_to_caches = Hash.new{|h,v| h[v] = []}
  @finalizer = lambda do |object_id|
    @object_to_caches[object_id].each do |cache,key|
      cache.delete(key)
    end
    @object_to_caches.delete(object_id)
  end
end

Instance Attribute Details

#mutex ⇒ Object (readonly)

Returns the value of attribute mutex.



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# File 'lib/rod/cache.rb', line 7

def mutex
  @mutex
end

Instance Method Details

#register(value, key, cache) ⇒ Object 



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# File 'lib/rod/cache.rb', line 20

def register(value,key,cache)
  @object_to_caches[value.object_id] << [cache,key]
  ObjectSpace.define_finalizer(value,@finalizer)
end