Distributed Python Software Transactional Memory Supporting Publish-Subscribe Pattern

The original Distributed Python Software Transactional Memory (DPSTM) supports transactions on inmemory transactional variables. In this paper, we extended the DPSTM architecture with the Pub/Sub subsystem, in order to additionally support the publish-subscribe pattern. The new architecture, called DPSTM-PS, supports transactions and notifications on consequent transactional variables’ updates. The Pub/Sub subsystem comprises: publish-subscribe server, registrar server, and message broker. The DPSTM-PS was successfully validated on the wired Ethernet and on the wireless WiFi home networks.