class Bundler::Persistent::Net::HTTP::Persistent::TimedStackMulti

def self.hash_of_arrays # :nodoc:
  Hash.new { |h,k| h[k] = [] }
end

def connection_stored? options = {} # :nodoc:
  !@ques[options[:connection_args]].empty?
end

def empty?
  (@created - @enqueued) >= @max
end

def fetch_connection options = {} # :nodoc:
  connection_args = options[:connection_args]
  @enqueued -= 1
  lru_update connection_args
  @ques[connection_args].pop
end

def initialize(size = 0, &block)
  super
  @enqueued = 0
  @ques = self.class.hash_of_arrays
  @lru = {}
  @key = :"connection_args-#{object_id}"
end

def length
  @max - @created + @enqueued
end

def lru_update connection_args # :nodoc:
  @lru.delete connection_args
  @lru[connection_args] = true
end

def shutdown_connections # :nodoc:
  @ques.each_key do |key|
    super connection_args: key
  end
end

def store_connection obj, options = {} # :nodoc:
  @ques[options[:connection_args]].push obj
  @enqueued += 1
end

def try_create options = {} # :nodoc:
  connection_args = options[:connection_args]
  if @created >= @max && @enqueued >= 1
    oldest, = @lru.first
    @lru.delete oldest
    @ques[oldest].pop
    @created -= 1
  end
  if @created < @max
    @created += 1
    lru_update connection_args
    return @create_block.call(connection_args)
  end
end