[LAU] Simple, easy multithreaded circular buffer library for Linux?

It has been over 7 years since I last messed around with writing Pthreads applications. I recall it as a painful, ugly, brain-numbing task. I located an exercise I did back then to address the consumer/producer problem in Pthreads, and just the sight of it is giving me a headache. I also vaguely recall that some GUI-related libraries like Glib and QT offered built-in abstractions to make multithreaded apps and common constructions like circular buffers much easier. I'm being lazy, so instead of researching everything that's out there, I'll ask here: can anyone recommend a relatively simple and painless abstraction library (GPL or LGPL of course) that will give me functions to create a thread in which I can stuff things into a ring buffer, and another thread in which I can pull stuff out of it? By the way, I know that JACK has a very nice event buffer which is insanely easy to use (and I have), and makes multithreading almost transparent, but this isn't a JACK app. -ken