An implementation and semantics for transactional memory introspection in Haskell
Arnar Birgisson, Úlfar Erlingsson · 2009
Transactional Memory Introspection (TMI) is a novel reference monitor architecture that provides complete mediation, freedom from time of check to time of use bugs and improved failure handling for authorization. TMI builds on and integrates with implementations of the Software Transactional Memory (STM) architecture [Harris and Fraser 2003]. In this paper we present a formal definition of TMI and a concrete implementation over the Haskell STM. We find that this specification and reference implementation establishes clear semantics for the TMI architecture. In particular, they help identify and resolve ambiguities that apply to implementations such in our prior work [Birgisson et al. 2008].