[Proposal] New Extension Yac (a user data cache base on shared memory without locks)

Hey: since Zend O+ has bundled into PHP since 5.5, and O+ is really a bit faster than APC, so people may want to migrate to O+, but there is no User Data Cache in O+ ... So, I deved this extension, named Yac, which is a user data cache based on shared memory, it's a pure user data cache, in that cace, this cache is *no lock* cache, which brings a significant performace improve. codes are here, under PHP 3.0 license: https://github.com/laruence/yac any feedback will be appreciated. thanks -- Laruence Xinchen Hui http://www.laruence.com/