if i%2 == 1 {
				// On Plan 9, after calling LockOSThread, the goroutines
				// run on different processes which don't share the working
				// directory. This used to be an issue because Go expects
				// the working directory to be program-wide.
				// See issue 9428.
				runtime.LockOSThread()
			}
			select {
			case <-done:
				return
			case <-hold:
			}

// the index of the last subkey (obtainable from RegQueryInfoKey),
// decrementing until index 0 is enumerated.
//
// Successive calls to this API must happen on the same OS thread,
// so call [runtime.LockOSThread] before calling this function.
func RegEnumKeyEx(key Handle, index uint32, name *uint16, nameLen *uint32, reserved *uint32, class *uint16, classLen *uint32, lastWriteTime *Filetime) (regerrno error) {