#ifdef USERLEVEL // {
-/*
- * Note this might be a problem on NT b/c while sched_yield guarantees it
- * moves you to the end of your priority list, Sleep(0) offers no such
- * guarantee. Bummer. --Jeremy.
- */
-
-#if defined(_WIN32)
-# define YIELD() Sleep(0)
-#elif defined(VMKERNEL)
-/* We don't have a YIELD macro in the vmkernel */
-#else
-# include <sched.h> // For sched_yield. Don't ask. --Jeremy.
-# define YIELD() sched_yield()
-#endif
-
-
/*
* Standardize some Posix names on Windows.
*/