%0 Journal Article %T Supporting Lock-Free Composition of Concurrent Data Objects %A Daniel Cederman %A Philippas Tsigas %J Computer Science %D 2009 %I arXiv %X Lock-free data objects offer several advantages over their blocking counterparts, such as being immune to deadlocks and convoying and, more importantly, being highly concurrent. But they share a common disadvantage in that the operations they provide are difficult to compose into larger atomic operations while still guaranteeing lock-freedom. We present a lock-free methodology for composing highly concurrent linearizable objects together by unifying their linearization points. This makes it possible to relatively easily introduce atomic lock-free move operations to a wide range of concurrent objects. Experimental evaluation has shown that the operations originally supported by the data objects keep their performance behavior under our methodology. %U http://arxiv.org/abs/0910.0366v1