The starting point would be either of Herb Sutter's DDJ articles for either a single producer and consumer or multiple ones. The code he gives (in-line starting on the second page of each article) uses the C++0x style atomic template type; which you can imitate using the Boost interprocess library.
The boost code is buried in the depths of the interprocess library, but having read through the appropriate header file (atomic.hpp) the implementations for the necessary compare-and-swap operations on the systems I am familiar with look sound.
