No and no. Strictly proprietary technology which gives a real competitive advantage. Fun thing is, if you choose your data structures wisely, it's not even that

No and no. Strictly proprietary technology which gives a real competitive advantage. Fun thing is, if you choose your data structures wisely, it's not even that hard to write; it ended up being under 2k lines of C++ code. GC was offline though; it was performed at the time the container was "upgraded" from RO to RW access. I don't think it'd be difficult to make it online, but there was no need for that.