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Contents
require 'volt/utils/generic_pool'
module Volt
# A counting pool behaves like a normal GenericPool, except for
# each time lookup is called, remove should be called when complete.
# The item will be completely removed from the GenericCountingPool
# only when it has been removed an equal number of times it has been
# looked up.
class GenericCountingPool < GenericPool
# return a created item with a count
def generate_new(*args)
[0, create(*args)]
end
# Finds an item and tracks that it was checked out. Use
# #remove when the item is no longer needed.
def find(*args, &block)
item = __lookup(*args, &block)
item[0] += 1
item[1]
end
# Lookups an item
def lookup(*args, &block)
# Note: must call without args because of https://github.com/opal/opal/issues/500
item = super
item[1]
end
def transform_item(item)
[0, item]
end
def remove(*args)
item = lookup_without_generate(*args)
if item
item[0] -= 1
if item[0] == 0
# Last one using this item has removed it.
super(*args)
end
end
end
end
end
Version data entries
45 entries across 45 versions & 1 rubygems