# File lib/thread_safe/atomic_reference_cache_backend.rb, line 357
    def initialize(options = nil)
      super()
      @counter = Util::Adder.new
      initial_capacity  = options && options[:initial_capacity] || DEFAULT_CAPACITY
      self.size_control = (capacity = table_size_for(initial_capacity)) > MAX_CAPACITY ? MAX_CAPACITY : capacity
    end