Hands-On Concurrency with Rust

Epoch-based reclamation

We touched on epoch-based memory reclamation in the last chapter. We'll now examine the concept in depth and in the context of a ready-to-use implementation via the crossbeam project (https://github.com/crossbeam-rs). Some of the developers of conc overlap with crossbeam, but there's been more work done to crossbeam in the pursuit of a general-purpose framework for low-level atomic programming in Rust. The developers note that they plan to support other memory management schemes, for example hazard pointers (HP) and quiescent state-based reclamation (QSBR). The crate is re-exported as the epoch module. Future editions of this book may well only cover crossbeam and simply discuss the various memory reclamation techniques ...