Cyclic buffer written in native c win32

I need a good implementation of a (thread safe) cyclic buffer written in c. Do开发者_Go百科es anybody know where i can get it?

thanks!

---

Have you looked at this wikipedia record? They give an example, and have more external links.

As for thread-safe access just wrap the object with your own if needed, and throw a lock() / unlock() at it.