rigtorp/Seqlock

A collection of lock-free data structures written in standard C++11

A fast multi-producer, multi-consumer lock-free concurrent queue for C++11

A fast single-producer, single-consumer lock-free queue for C++

Automatically exported from code.google.com/p/relacy

A bounded single-producer single-consumer wait-free and lock-free queue written in C++11

The atomic_ops project (Atomic memory update operations portable implementation)

A lock-free, read-optimized, concurrency primitive.

Concurrency primitives, safe memory reclamation mechanisms and non-blocking (including lock-free) data structures designed to aid in the research, design and implementation of high performance concurrent systems developed in C99+.

The C++ Standard Library for Parallelism and Concurrency