Lock Free Programmin, Lock Free Programming

You mention lock free programmin where special c p instructions like compare and swap are used. You also talk about cues. I assume that cues are often implemented with a lock. So is this just a special case of locks, or is there anything about cues which deserves to be focused on as its own different resource? The context for the chapter on cues, quite clear enough, was specifically interested in work that is done in pieces. A little piece is done, and then the package of work to be done is placed on on a soft ware cue. And then later, some worker programme,. picks up that piece of work off the cue, does the next step, or next piece of the work