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Contents
# Copyright (c) 2009 Michael Fellinger m.fellinger@gmail.com
# All files in this distribution are subject to the terms of the Ruby license.
require 'localmemcache'
module Ramaze
class Cache
# Cache based on the localmemcache library which utilizes mmap to share
# strings in memory between ruby instances.
class LocalMemCache
include Cache::API
OPTIONS = {
:size_mb => 1024,
:serialize => true,
:serializer => ::Marshal, # something that responds to ::load and ::dump
}
# Connect to localmemcache
def cache_setup(host, user, app, name)
@namespace = [host, user, app, name].compact.join('-')
options = {:namespace => @namespace}.merge(OPTIONS)
@serialize = options.delete(:serialize)
@serializer = options.delete(:serializer)
@store = ::LocalMemCache.new(options)
end
# Wipe out _all_ data in localmemcached, use with care.
def cache_clear
::LocalMemCache.clear_namespace(@namespace)
end
def cache_delete(*args)
super{|key| @store.delete(key.to_s) }
end
# NOTE:
# * We have no way of knowing whether the value really is nil, we
# assume you wouldn't cache nil and return the default instead.
def cache_fetch(*args)
super{|key|
value = @store[key.to_s]
@serializer.load(value) if value
}
end
def cache_store(*args)
super{|key, value| @store[key.to_s] = @serializer.dump(value) }
end
end
end
end
Version data entries
9 entries across 9 versions & 3 rubygems